commit 89f4361f5254a496404481a15480cc8a6dc07e3b Author: Maschell Date: Tue Jul 3 20:23:12 2018 +0200 First commit, have fun! diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..fb82516 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +build/* +*.mod \ No newline at end of file diff --git a/.travis.yml b/.travis.yml new file mode 100644 index 0000000..beb3d3b --- /dev/null +++ b/.travis.yml @@ -0,0 +1,66 @@ +language: cpp +os: linux +sudo: false +dist: trusty +branches: + only: + - master +env: + global: + - DEVKITPRO=/opt/devkitpro + - WUT_ROOT=/opt/devkitpro/wut + - DEVKITPPC=/opt/devkitpro/devkitPPC + - PORTLIBREPOS=$HOME/portlibrepos +cache: + directories: + - "$HOME/.local" + - "$DEVKITPRO" +addons: + apt: + packages: + - p7zip-full +before_install: +- mkdir -p "${PORTLIBREPOS}" +- mkdir -p "${DEVKITPRO}" +- if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then wget https://github.com/devkitPro/pacman/releases/download/devkitpro-pacman-1.0.1/devkitpro-pacman.deb + -O /tmp/devkitpro-pacman.deb; fi +- if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then sudo dpkg -i /tmp/devkitpro-pacman.deb; + fi +- yes | sudo dkp-pacman -Syu devkitPPC --needed +- yes | sudo dkp-pacman -Syu general-tools --needed +- wget https://github.com/decaf-emu/wut/releases/download/1.0.0-beta2/wut.linux64.7z +install: +- 7z x -y $(ls | grep "linux") -o${WUT_ROOT} +- cd $PORTLIBREPOS +- git clone https://github.com/Maschell/WiiUPluginSystem.git +- git clone https://github.com/Maschell/libutils.git -b wut +- cd WiiUPluginSystem +- make && make install +- cd $PORTLIBREPOS +- cd libutils +- mkdir build && cd build +- cmake -DCMAKE_TOOLCHAIN_FILE=$WUT_ROOT/share/wut.toolchain.cmake -DCMAKE_INSTALL_PREFIX=$WUT_ROOT + ../ +- make install +- cd $PORTLIBREPOS +before_script: +- cd $TRAVIS_BUILD_DIR/ +script: +- make -j8 +before_deploy: +- cd $TRAVIS_BUILD_DIR/ +- mkdir -p "wiiu/plugins" +- commit="$(git rev-parse --short=7 HEAD)" +- find -type f -name "*.mod" | xargs -i cp {} wiiu/plugins +- zip -r screenstreamer_wups_nightly_$commit.zip wiiu +- git config --local user.name "Maschell" +- git config --local user.email "Maschell@gmx.de" +- git tag "ScreenshotWUPS-$(date +'%Y%m%d%H%M%S')-$(git log --format=%h -1)" +deploy: + provider: releases + skip_cleanup: true + api_key: + secure: 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 + file: screenstreamer_wups_nightly_$commit.zip + on: + repo: Maschell/StreamingPluginWiiU diff --git a/Makefile b/Makefile new file mode 100644 index 0000000..dd480be --- /dev/null +++ b/Makefile @@ -0,0 +1,300 @@ +# You probably never need to adjust this Makefile. +# All changes can be done in the makefile.mk + +#--------------------------------------------------------------------------------- +# Clear the implicit built in rules +#--------------------------------------------------------------------------------- +.SUFFIXES: +#--------------------------------------------------------------------------------- +ifeq ($(strip $(DEVKITPPC)),) +$(error "Please set DEVKITPPC in your environment. export DEVKITPPC=devkitPPC") +endif +ifeq ($(strip $(DEVKITPRO)),) +$(error "Please set DEVKITPRO in your environment. export DEVKITPRO=devkitPRO") +endif + +export PATH := $(DEVKITPPC)/bin:$(PORTLIBS)/bin:$(PATH) +export PORTLIBS := $(DEVKITPRO)/portlibs/ppc +export WUPSDIR := $(DEVKITPRO)/wups +export GCC_VER := $(shell $(DEVKITPPC)/bin/powerpc-eabi-gcc -dumpversion) + +PREFIX := powerpc-eabi- + +export AS := $(PREFIX)as +export CC := $(PREFIX)gcc +export CXX := $(PREFIX)g++ +export LD := $(PREFIX)ld +export AR := $(PREFIX)ar +export OBJCOPY := $(PREFIX)objcopy + +#--------------------------------------------------------------------------------- +# TARGET is the name of the output +# BUILD is the directory where object files & intermediate files will be placed +# SOURCES is a list of directories containing source code +# INCLUDES is a list of directories containing extra header files +#--------------------------------------------------------------------------------- +TARGET := $(notdir $(CURDIR)) +BUILD := build + +ifeq ($(notdir $(CURDIR)),$(BUILD)) + include ../makefile.mk +else + include makefile.mk +endif + +include $(WUPSDIR)/plugin_makefile.mk + + +#MAP ?= $(TARGET:.mod=.map) + +#--------------------------------------------------------------------------------- +# options for code generation +#--------------------------------------------------------------------------------- + +# -Os: optimise size +# -Wall: generate lots of warnings +# -D__wiiu__: define the symbol __wiiu__ (used in some headers) +# -mcpu=750: enable processor specific compilation +# -meabi: enable eabi specific compilation +# -mhard-float: enable hardware floating point instructions +# -nostartfiles: Do not use the standard system startup files when linking +# -ffunction-sections: split up functions so linker can garbage collect +# -fdata-sections: split up data so linker can garbage collect +COMMON_CFLAGS := -Os -Wall -mcpu=750 -meabi -mhard-float -D__WIIU__ -nostartfiles -ffunction-sections -fdata-sections -Wl,-q $(COMMON_CFLAGS) + +# -x c: compile as c code +# -std=c11: use the c11 standard +CFLAGS := $(COMMON_CFLAGS) -x c -std=gnu11 $(CFLAGS) + +# -x c: compile as c++ code +# -std=gnu++11: use the c++11 standard +CXXFLAGS := $(COMMON_CFLAGS) -x c++ -std=gnu++11 $(CXXFLAGS) + +ifeq ($(DO_LOGGING), 1) + CFLAGS += -D__LOGGING__ + CXXFLAGS += -D__LOGGING__ +endif + +#--------------------------------------------------------------------------------- +# any extra ld flags +#-------------------------------------------------------------------------------- +# --gc-sections: remove unneeded symbols +# -Map: generate a map file +LDFLAGS += -Wl,-Map,$(notdir $@).map,--gc-sections + + +#--------------------------------------------------------------------------------- +Q := @ +MAKEFLAGS += --no-print-directory +#--------------------------------------------------------------------------------- +# any extra libraries we wish to link with the project +#--------------------------------------------------------------------------------- +LIBS += +# +#--------------------------------------------------------------------------------- +# list of directories containing libraries, this must be the top level containing +# include and lib +#--------------------------------------------------------------------------------- +LIBDIRS += + +NEEDS_WUT := 0 + +ifeq ($(WUT_ENABLE_CPP), 1) + WUT_ENABLE_NEWLIB := 1 + + LDFLAGS += -Wl,-whole-archive,-lwutstdc++,-no-whole-archive + NEEDS_WUT := 1 +endif + +ifeq ($(WUT_ENABLE_NEWLIB), 1) + LDFLAGS += -Wl,-whole-archive,-lwutnewlib,-no-whole-archive + NEEDS_WUT := 1 +endif + +ifeq ($(WUT_DEFAULT_MALLOC), 1) + LDFLAGS += -Wl,-whole-archive,-lwutmalloc,-no-whole-archive + NEEDS_WUT := 1 +endif + +ifeq ($(NEEDS_WUT), 1) + ifeq ($(strip $(WUT_ROOT)),) + $(error "Please set WUT_ROOT in your environment. export WUT_ROOT=wut) + endif + CFLAGS += -D__WUT__ + CXXFLAGS += -D__WUT__ +endif + +#--------------------------------------------------------------------------------- +# no real need to edit anything past this point unless you need to add additional +# rules for different file extensions +#--------------------------------------------------------------------------------- +ifneq ($(BUILD),$(notdir $(CURDIR))) +#--------------------------------------------------------------------------------- +export PROJECTDIR := $(CURDIR) +export OUTPUT := $(CURDIR)/$(TARGETDIR)/$(TARGET) +export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \ + $(foreach dir,$(DATA),$(CURDIR)/$(dir)) +export DEPSDIR := $(CURDIR)/$(BUILD) + +#--------------------------------------------------------------------------------- +# automatically build a list of object files for our project +#--------------------------------------------------------------------------------- +CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c))) +CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp))) +sFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s))) +SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.S))) +BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*))) +TTFFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.ttf))) +PNGFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.png))) + +#--------------------------------------------------------------------------------- +# use CXX for linking C++ projects, CC for standard C +#--------------------------------------------------------------------------------- +ifeq ($(strip $(CPPFILES)),) + export REAL_LD := $(CC) +else + export REAL_LD := $(CXX) +endif + +export OFILES := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) \ + $(sFILES:.s=.o) $(SFILES:.S=.o) \ + $(PNGFILES:.png=.png.o) $(addsuffix .o,$(BINFILES)) + +#--------------------------------------------------------------------------------- +# build a list of include paths +#--------------------------------------------------------------------------------- +export INCLUDE_FULL += $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \ + $(foreach dir,$(LIBDIRS),-I$(dir)/include) \ + $(EXTERNAL_INCLUDE) + +#--------------------------------------------------------------------------------- +# build a list of library paths +#--------------------------------------------------------------------------------- +export LIBPATHS_FULL += $(foreach dir,$(LIBDIRS),-L$(dir)/lib) \ + $(EXTERNAL_LIBPATHS) + + +export OUTPUT := $(CURDIR)/$(TARGET) +.PHONY: $(BUILD) clean install + +#--------------------------------------------------------------------------------- +$(BUILD): + @[ -d $@ ] || mkdir -p $@ + @$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile + +#--------------------------------------------------------------------------------- +clean: + @echo clean ... + @rm -fr $(BUILD) $(OUTPUT).mod $(OUTPUT) + +#--------------------------------------------------------------------------------- +else + +DEPENDS := $(OFILES:.o=.d) + +THIS_DIR := $(dir $(abspath $(lastword $(MAKEFILE_LIST)))) + +############################################################################### +# Rule to make everything. +PHONY += all + +all : $(OUTPUT) +############################################################################### +# Special build rules + + +# Rule to make the module file. +$(OUTPUT) : $(OFILES) + @echo "linking ... " $@ + @$(REAL_LD) $(OFILES) $(LDFLAGS) $(LIBS) $(LIBPATHS_FULL) -o $@ + +############################################################################### +# Standard build rules +#--------------------------------------------------------------------------------- +%.a: +#--------------------------------------------------------------------------------- + @echo $(notdir $@) + @rm -f $@ + @$(AR) -rc $@ $^ + +#--------------------------------------------------------------------------------- +%.o: %.cpp + @echo $(notdir $<) + @$(CXX) -MMD -MP -MF $(DEPSDIR)/$*.d $(CXXFLAGS) $(INCLUDE_FULL) -c $< -o $@ $(ERROR_FILTER) + +#--------------------------------------------------------------------------------- +%.o: %.c + @echo $(notdir $<) + @$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d $(CFLAGS) $(INCLUDE_FULL) -c $< -o $@ $(ERROR_FILTER) + +#--------------------------------------------------------------------------------- +%.o: %.S + @echo $(notdir $<) + @$(CC) -MMD -MP -MF $(DEPSDIR)/$*.d -x assembler-with-cpp $(INCLUDE_FULL) -c $< -o $@ $(ERROR_FILTER) + +#--------------------------------------------------------------------------------- +%.png.o : %.png + @echo $(notdir $<) + @bin2s -a 32 $< | $(AS) -o $(@) + +#--------------------------------------------------------------------------------- +%.jpg.o : %.jpg + @echo $(notdir $<) + @bin2s -a 32 $< | $(AS) -o $(@) + +#--------------------------------------------------------------------------------- +%.ttf.o : %.ttf + @echo $(notdir $<) + @bin2s -a 32 $< | $(AS) -o $(@) + +#--------------------------------------------------------------------------------- +%.bin.o : %.bin + @echo $(notdir $<) + @bin2s -a 32 $< | $(AS) -o $(@) + +#--------------------------------------------------------------------------------- +%.wav.o : %.wav + @echo $(notdir $<) + @bin2s -a 32 $< | $(AS) -o $(@) + +#--------------------------------------------------------------------------------- +%.mp3.o : %.mp3 + @echo $(notdir $<) + @bin2s -a 32 $< | $(AS) -o $(@) + +#--------------------------------------------------------------------------------- +%.ogg.o : %.ogg + @echo $(notdir $<) + @bin2s -a 32 $< | $(AS) -o $(@) + +############################################################################### +# Assembly listing rules + +# Rule to make assembly listing. +PHONY += list +list : $(LIST) + +# Rule to make the listing file. +%.list : $(TARGET) + $(LOG) + -$Qmkdir -p $(dir $@) + $Q$(OBJDUMP) -d $< > $@ + +############################################################################### +# Clean rule + +# Rule to clean files. +PHONY += clean +clean : + $Qrm -rf $(wildcard $(BUILD) $(BIN)) + +############################################################################### +# Phony targets + +.PHONY : $(PHONY) + +-include $(DEPENDS) + +#--------------------------------------------------------------------------------- +endif +#--------------------------------------------------------------------------------- diff --git a/README.md b/README.md new file mode 100644 index 0000000..d9ae42e --- /dev/null +++ b/README.md @@ -0,0 +1,46 @@ +# ScreenStreaming for the Wii U [![Build Status](https://api.travis-ci.org/Maschell/StreamingPluginWiiU.svg?branch=master)](https://travis-ci.org/Maschell/StreamingPluginWiiU) + +## Still an early PROOF OF CONCEPT. DON'T EXCEPT MAGIC. + +This is just a simple plugin that allows you to stream the content of the DRC to any browser. +Currently no configuration without recompiling is supported. It streams in a resolution of 428x240 and tries to achieve 20 fps. This numbers might improve in the future. + +But general notes: +- This is still an early PoC +- Encoding is done in software note hardware +- It probably affects gameplay. Loading times are increased, the games could lag. I wouldn't recommend you to play Online. +- All settings are hard coded in the code. In the future it will (hopefully) be possible to choose the screen to stream (TV or DRC), at which resolution and which quality. +- No streaming of the home menu. +- Probably unstable. +- Some games might be too dark some might be too bright or doesn't work at all. +- Currently streaming is achieved via "MJPEG via HTTP", this might change in the future to improve performance. + +# Usage +Simply load the plugin with the plugin loader. When the system menu is loaded, you can open `http://:8080" on your browser an should see the stream. Whenever you switch the application (e.g. load a game), you need to refresh the site in your browser. +Example when the IP of your IP is 192.168.0.44. +``` +http:/192.168.0.44:8080 +``` +If you don't know the IP of your Wii U, you can start for example [ftpii](https://github.com/dimok789/ftpiiu) which shows the IP when running. + +## Wii U Plugin System +This is a plugin for the [Wii U Plugin System (WUPS)](https://github.com/Maschell/WiiUPluginSystem/). To be able to use this plugin you have to place the resulting `.mod` file into the following folder: + +``` +sd:/wiiu/plugins +``` +When the file is placed on the SDCard you can load it with [plugin loader](https://github.com/Maschell/WiiUPluginSystem/). + +## Building + +For building you need: +- [wups](https://github.com/Maschell/WiiUPluginSystem) +- [dynamic_libs](https://github.com/Maschell/dynamic_libs/tree/lib) for access to the functions. +- [libutils](https://github.com/Maschell/libutils) for common functions. + +Install them (in this order) according to their README's. Don't forget the dependencies of the libs itself. + +Other external libraries are already located in the `libs` folder. + +- libjpeg +- libturbojpeg \ No newline at end of file diff --git a/libs/include/jconfig.h b/libs/include/jconfig.h new file mode 100644 index 0000000..04ca8da --- /dev/null +++ b/libs/include/jconfig.h @@ -0,0 +1,74 @@ +/* jconfig.h. Generated from jconfig.h.in by configure. */ +/* Version ID for the JPEG library. + * Might be useful for tests like "#if JPEG_LIB_VERSION >= 60". + */ +#define JPEG_LIB_VERSION 62 + +/* libjpeg-turbo version */ +#define LIBJPEG_TURBO_VERSION 1.5.3 + +/* libjpeg-turbo version in integer form */ +#define LIBJPEG_TURBO_VERSION_NUMBER 1005003 + +/* Support arithmetic encoding */ +#define C_ARITH_CODING_SUPPORTED 1 + +/* Support arithmetic decoding */ +#define D_ARITH_CODING_SUPPORTED 1 + +/* + * Define BITS_IN_JSAMPLE as either + * 8 for 8-bit sample values (the usual setting) + * 12 for 12-bit sample values + * Only 8 and 12 are legal data precisions for lossy JPEG according to the + * JPEG standard, and the IJG code does not support anything else! + * We do not support run-time selection of data precision, sorry. + */ + +#define BITS_IN_JSAMPLE 8 /* use 8 or 12 */ + +/* Define to 1 if you have the header file. */ +#define HAVE_LOCALE_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_STDDEF_H 1 + +/* Define to 1 if you have the header file. */ +#define HAVE_STDLIB_H 1 + +/* Define to 1 if the system has the type `unsigned char'. */ +#define HAVE_UNSIGNED_CHAR 1 + +/* Define to 1 if the system has the type `unsigned short'. */ +#define HAVE_UNSIGNED_SHORT 1 + +/* Compiler does not support pointers to undefined structures. */ +/* #undef INCOMPLETE_TYPES_BROKEN */ + +/* Support in-memory source/destination managers */ +#define MEM_SRCDST_SUPPORTED 1 + +/* Define if you have BSD-like bzero and bcopy in rather than + memset/memcpy in . */ +/* #undef NEED_BSD_STRINGS */ + +/* Define if you need to include to get size_t. */ +#define NEED_SYS_TYPES_H 1 + +/* Define if your (broken) compiler shifts signed values as if they were + unsigned. */ +/* #undef RIGHT_SHIFT_IS_UNSIGNED */ + +/* Use accelerated SIMD routines. */ +/* #undef WITH_SIMD */ + +/* Define to 1 if type `char' is unsigned and you are not using gcc. */ +#ifndef __CHAR_UNSIGNED__ +/* # undef __CHAR_UNSIGNED__ */ +#endif + +/* Define to empty if `const' does not conform to ANSI C. */ +/* #undef const */ + +/* Define to `unsigned int' if does not define. */ +/* #undef size_t */ diff --git a/libs/include/jerror.h b/libs/include/jerror.h new file mode 100644 index 0000000..11a07cb --- /dev/null +++ b/libs/include/jerror.h @@ -0,0 +1,317 @@ +/* + * jerror.h + * + * This file was part of the Independent JPEG Group's software: + * Copyright (C) 1994-1997, Thomas G. Lane. + * Modified 1997-2009 by Guido Vollbeding. + * libjpeg-turbo Modifications: + * Copyright (C) 2014, D. R. Commander. + * For conditions of distribution and use, see the accompanying README.ijg + * file. + * + * This file defines the error and message codes for the JPEG library. + * Edit this file to add new codes, or to translate the message strings to + * some other language. + * A set of error-reporting macros are defined too. Some applications using + * the JPEG library may wish to include this file to get the error codes + * and/or the macros. + */ + +/* + * To define the enum list of message codes, include this file without + * defining macro JMESSAGE. To create a message string table, include it + * again with a suitable JMESSAGE definition (see jerror.c for an example). + */ +#ifndef JMESSAGE +#ifndef JERROR_H +/* First time through, define the enum list */ +#define JMAKE_ENUM_LIST +#else +/* Repeated inclusions of this file are no-ops unless JMESSAGE is defined */ +#define JMESSAGE(code,string) +#endif /* JERROR_H */ +#endif /* JMESSAGE */ + +#ifdef JMAKE_ENUM_LIST + +typedef enum { + +#define JMESSAGE(code,string) code , + +#endif /* JMAKE_ENUM_LIST */ + +JMESSAGE(JMSG_NOMESSAGE, "Bogus message code %d") /* Must be first entry! */ + +/* For maintenance convenience, list is alphabetical by message code name */ +#if JPEG_LIB_VERSION < 70 +JMESSAGE(JERR_ARITH_NOTIMPL, + "Sorry, arithmetic coding is not implemented") +#endif +JMESSAGE(JERR_BAD_ALIGN_TYPE, "ALIGN_TYPE is wrong, please fix") +JMESSAGE(JERR_BAD_ALLOC_CHUNK, "MAX_ALLOC_CHUNK is wrong, please fix") +JMESSAGE(JERR_BAD_BUFFER_MODE, "Bogus buffer control mode") +JMESSAGE(JERR_BAD_COMPONENT_ID, "Invalid component ID %d in SOS") +#if JPEG_LIB_VERSION >= 70 +JMESSAGE(JERR_BAD_CROP_SPEC, "Invalid crop request") +#endif +JMESSAGE(JERR_BAD_DCT_COEF, "DCT coefficient out of range") +JMESSAGE(JERR_BAD_DCTSIZE, "IDCT output block size %d not supported") +#if JPEG_LIB_VERSION >= 70 +JMESSAGE(JERR_BAD_DROP_SAMPLING, + "Component index %d: mismatching sampling ratio %d:%d, %d:%d, %c") +#endif +JMESSAGE(JERR_BAD_HUFF_TABLE, "Bogus Huffman table definition") +JMESSAGE(JERR_BAD_IN_COLORSPACE, "Bogus input colorspace") +JMESSAGE(JERR_BAD_J_COLORSPACE, "Bogus JPEG colorspace") +JMESSAGE(JERR_BAD_LENGTH, "Bogus marker length") +JMESSAGE(JERR_BAD_LIB_VERSION, + "Wrong JPEG library version: library is %d, caller expects %d") +JMESSAGE(JERR_BAD_MCU_SIZE, "Sampling factors too large for interleaved scan") +JMESSAGE(JERR_BAD_POOL_ID, "Invalid memory pool code %d") +JMESSAGE(JERR_BAD_PRECISION, "Unsupported JPEG data precision %d") +JMESSAGE(JERR_BAD_PROGRESSION, + "Invalid progressive parameters Ss=%d Se=%d Ah=%d Al=%d") +JMESSAGE(JERR_BAD_PROG_SCRIPT, + "Invalid progressive parameters at scan script entry %d") +JMESSAGE(JERR_BAD_SAMPLING, "Bogus sampling factors") +JMESSAGE(JERR_BAD_SCAN_SCRIPT, "Invalid scan script at entry %d") +JMESSAGE(JERR_BAD_STATE, "Improper call to JPEG library in state %d") +JMESSAGE(JERR_BAD_STRUCT_SIZE, + "JPEG parameter struct mismatch: library thinks size is %u, caller expects %u") +JMESSAGE(JERR_BAD_VIRTUAL_ACCESS, "Bogus virtual array access") +JMESSAGE(JERR_BUFFER_SIZE, "Buffer passed to JPEG library is too small") +JMESSAGE(JERR_CANT_SUSPEND, "Suspension not allowed here") +JMESSAGE(JERR_CCIR601_NOTIMPL, "CCIR601 sampling not implemented yet") +JMESSAGE(JERR_COMPONENT_COUNT, "Too many color components: %d, max %d") +JMESSAGE(JERR_CONVERSION_NOTIMPL, "Unsupported color conversion request") +JMESSAGE(JERR_DAC_INDEX, "Bogus DAC index %d") +JMESSAGE(JERR_DAC_VALUE, "Bogus DAC value 0x%x") +JMESSAGE(JERR_DHT_INDEX, "Bogus DHT index %d") +JMESSAGE(JERR_DQT_INDEX, "Bogus DQT index %d") +JMESSAGE(JERR_EMPTY_IMAGE, "Empty JPEG image (DNL not supported)") +JMESSAGE(JERR_EMS_READ, "Read from EMS failed") +JMESSAGE(JERR_EMS_WRITE, "Write to EMS failed") +JMESSAGE(JERR_EOI_EXPECTED, "Didn't expect more than one scan") +JMESSAGE(JERR_FILE_READ, "Input file read error") +JMESSAGE(JERR_FILE_WRITE, "Output file write error --- out of disk space?") +JMESSAGE(JERR_FRACT_SAMPLE_NOTIMPL, "Fractional sampling not implemented yet") +JMESSAGE(JERR_HUFF_CLEN_OVERFLOW, "Huffman code size table overflow") +JMESSAGE(JERR_HUFF_MISSING_CODE, "Missing Huffman code table entry") +JMESSAGE(JERR_IMAGE_TOO_BIG, "Maximum supported image dimension is %u pixels") +JMESSAGE(JERR_INPUT_EMPTY, "Empty input file") +JMESSAGE(JERR_INPUT_EOF, "Premature end of input file") +JMESSAGE(JERR_MISMATCHED_QUANT_TABLE, + "Cannot transcode due to multiple use of quantization table %d") +JMESSAGE(JERR_MISSING_DATA, "Scan script does not transmit all data") +JMESSAGE(JERR_MODE_CHANGE, "Invalid color quantization mode change") +JMESSAGE(JERR_NOTIMPL, "Not implemented yet") +JMESSAGE(JERR_NOT_COMPILED, "Requested feature was omitted at compile time") +#if JPEG_LIB_VERSION >= 70 +JMESSAGE(JERR_NO_ARITH_TABLE, "Arithmetic table 0x%02x was not defined") +#endif +JMESSAGE(JERR_NO_BACKING_STORE, "Backing store not supported") +JMESSAGE(JERR_NO_HUFF_TABLE, "Huffman table 0x%02x was not defined") +JMESSAGE(JERR_NO_IMAGE, "JPEG datastream contains no image") +JMESSAGE(JERR_NO_QUANT_TABLE, "Quantization table 0x%02x was not defined") +JMESSAGE(JERR_NO_SOI, "Not a JPEG file: starts with 0x%02x 0x%02x") +JMESSAGE(JERR_OUT_OF_MEMORY, "Insufficient memory (case %d)") +JMESSAGE(JERR_QUANT_COMPONENTS, + "Cannot quantize more than %d color components") +JMESSAGE(JERR_QUANT_FEW_COLORS, "Cannot quantize to fewer than %d colors") +JMESSAGE(JERR_QUANT_MANY_COLORS, "Cannot quantize to more than %d colors") +JMESSAGE(JERR_SOF_DUPLICATE, "Invalid JPEG file structure: two SOF markers") +JMESSAGE(JERR_SOF_NO_SOS, "Invalid JPEG file structure: missing SOS marker") +JMESSAGE(JERR_SOF_UNSUPPORTED, "Unsupported JPEG process: SOF type 0x%02x") +JMESSAGE(JERR_SOI_DUPLICATE, "Invalid JPEG file structure: two SOI markers") +JMESSAGE(JERR_SOS_NO_SOF, "Invalid JPEG file structure: SOS before SOF") +JMESSAGE(JERR_TFILE_CREATE, "Failed to create temporary file %s") +JMESSAGE(JERR_TFILE_READ, "Read failed on temporary file") +JMESSAGE(JERR_TFILE_SEEK, "Seek failed on temporary file") +JMESSAGE(JERR_TFILE_WRITE, + "Write failed on temporary file --- out of disk space?") +JMESSAGE(JERR_TOO_LITTLE_DATA, "Application transferred too few scanlines") +JMESSAGE(JERR_UNKNOWN_MARKER, "Unsupported marker type 0x%02x") +JMESSAGE(JERR_VIRTUAL_BUG, "Virtual array controller messed up") +JMESSAGE(JERR_WIDTH_OVERFLOW, "Image too wide for this implementation") +JMESSAGE(JERR_XMS_READ, "Read from XMS failed") +JMESSAGE(JERR_XMS_WRITE, "Write to XMS failed") +JMESSAGE(JMSG_COPYRIGHT, JCOPYRIGHT_SHORT) +JMESSAGE(JMSG_VERSION, JVERSION) +JMESSAGE(JTRC_16BIT_TABLES, + "Caution: quantization tables are too coarse for baseline JPEG") +JMESSAGE(JTRC_ADOBE, + "Adobe APP14 marker: version %d, flags 0x%04x 0x%04x, transform %d") +JMESSAGE(JTRC_APP0, "Unknown APP0 marker (not JFIF), length %u") +JMESSAGE(JTRC_APP14, "Unknown APP14 marker (not Adobe), length %u") +JMESSAGE(JTRC_DAC, "Define Arithmetic Table 0x%02x: 0x%02x") +JMESSAGE(JTRC_DHT, "Define Huffman Table 0x%02x") +JMESSAGE(JTRC_DQT, "Define Quantization Table %d precision %d") +JMESSAGE(JTRC_DRI, "Define Restart Interval %u") +JMESSAGE(JTRC_EMS_CLOSE, "Freed EMS handle %u") +JMESSAGE(JTRC_EMS_OPEN, "Obtained EMS handle %u") +JMESSAGE(JTRC_EOI, "End Of Image") +JMESSAGE(JTRC_HUFFBITS, " %3d %3d %3d %3d %3d %3d %3d %3d") +JMESSAGE(JTRC_JFIF, "JFIF APP0 marker: version %d.%02d, density %dx%d %d") +JMESSAGE(JTRC_JFIF_BADTHUMBNAILSIZE, + "Warning: thumbnail image size does not match data length %u") +JMESSAGE(JTRC_JFIF_EXTENSION, + "JFIF extension marker: type 0x%02x, length %u") +JMESSAGE(JTRC_JFIF_THUMBNAIL, " with %d x %d thumbnail image") +JMESSAGE(JTRC_MISC_MARKER, "Miscellaneous marker 0x%02x, length %u") +JMESSAGE(JTRC_PARMLESS_MARKER, "Unexpected marker 0x%02x") +JMESSAGE(JTRC_QUANTVALS, " %4u %4u %4u %4u %4u %4u %4u %4u") +JMESSAGE(JTRC_QUANT_3_NCOLORS, "Quantizing to %d = %d*%d*%d colors") +JMESSAGE(JTRC_QUANT_NCOLORS, "Quantizing to %d colors") +JMESSAGE(JTRC_QUANT_SELECTED, "Selected %d colors for quantization") +JMESSAGE(JTRC_RECOVERY_ACTION, "At marker 0x%02x, recovery action %d") +JMESSAGE(JTRC_RST, "RST%d") +JMESSAGE(JTRC_SMOOTH_NOTIMPL, + "Smoothing not supported with nonstandard sampling ratios") +JMESSAGE(JTRC_SOF, "Start Of Frame 0x%02x: width=%u, height=%u, components=%d") +JMESSAGE(JTRC_SOF_COMPONENT, " Component %d: %dhx%dv q=%d") +JMESSAGE(JTRC_SOI, "Start of Image") +JMESSAGE(JTRC_SOS, "Start Of Scan: %d components") +JMESSAGE(JTRC_SOS_COMPONENT, " Component %d: dc=%d ac=%d") +JMESSAGE(JTRC_SOS_PARAMS, " Ss=%d, Se=%d, Ah=%d, Al=%d") +JMESSAGE(JTRC_TFILE_CLOSE, "Closed temporary file %s") +JMESSAGE(JTRC_TFILE_OPEN, "Opened temporary file %s") +JMESSAGE(JTRC_THUMB_JPEG, + "JFIF extension marker: JPEG-compressed thumbnail image, length %u") +JMESSAGE(JTRC_THUMB_PALETTE, + "JFIF extension marker: palette thumbnail image, length %u") +JMESSAGE(JTRC_THUMB_RGB, + "JFIF extension marker: RGB thumbnail image, length %u") +JMESSAGE(JTRC_UNKNOWN_IDS, + "Unrecognized component IDs %d %d %d, assuming YCbCr") +JMESSAGE(JTRC_XMS_CLOSE, "Freed XMS handle %u") +JMESSAGE(JTRC_XMS_OPEN, "Obtained XMS handle %u") +JMESSAGE(JWRN_ADOBE_XFORM, "Unknown Adobe color transform code %d") +#if JPEG_LIB_VERSION >= 70 +JMESSAGE(JWRN_ARITH_BAD_CODE, "Corrupt JPEG data: bad arithmetic code") +#endif +JMESSAGE(JWRN_BOGUS_PROGRESSION, + "Inconsistent progression sequence for component %d coefficient %d") +JMESSAGE(JWRN_EXTRANEOUS_DATA, + "Corrupt JPEG data: %u extraneous bytes before marker 0x%02x") +JMESSAGE(JWRN_HIT_MARKER, "Corrupt JPEG data: premature end of data segment") +JMESSAGE(JWRN_HUFF_BAD_CODE, "Corrupt JPEG data: bad Huffman code") +JMESSAGE(JWRN_JFIF_MAJOR, "Warning: unknown JFIF revision number %d.%02d") +JMESSAGE(JWRN_JPEG_EOF, "Premature end of JPEG file") +JMESSAGE(JWRN_MUST_RESYNC, + "Corrupt JPEG data: found marker 0x%02x instead of RST%d") +JMESSAGE(JWRN_NOT_SEQUENTIAL, "Invalid SOS parameters for sequential JPEG") +JMESSAGE(JWRN_TOO_MUCH_DATA, "Application transferred too many scanlines") +#if JPEG_LIB_VERSION < 70 +JMESSAGE(JERR_BAD_CROP_SPEC, "Invalid crop request") +#if defined(C_ARITH_CODING_SUPPORTED) || defined(D_ARITH_CODING_SUPPORTED) +JMESSAGE(JERR_NO_ARITH_TABLE, "Arithmetic table 0x%02x was not defined") +JMESSAGE(JWRN_ARITH_BAD_CODE, "Corrupt JPEG data: bad arithmetic code") +#endif +#endif + +#ifdef JMAKE_ENUM_LIST + + JMSG_LASTMSGCODE +} J_MESSAGE_CODE; + +#undef JMAKE_ENUM_LIST +#endif /* JMAKE_ENUM_LIST */ + +/* Zap JMESSAGE macro so that future re-inclusions do nothing by default */ +#undef JMESSAGE + + +#ifndef JERROR_H +#define JERROR_H + +/* Macros to simplify using the error and trace message stuff */ +/* The first parameter is either type of cinfo pointer */ + +/* Fatal errors (print message and exit) */ +#define ERREXIT(cinfo,code) \ + ((cinfo)->err->msg_code = (code), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) +#define ERREXIT1(cinfo,code,p1) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) +#define ERREXIT2(cinfo,code,p1,p2) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (cinfo)->err->msg_parm.i[1] = (p2), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) +#define ERREXIT3(cinfo,code,p1,p2,p3) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (cinfo)->err->msg_parm.i[1] = (p2), \ + (cinfo)->err->msg_parm.i[2] = (p3), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) +#define ERREXIT4(cinfo,code,p1,p2,p3,p4) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (cinfo)->err->msg_parm.i[1] = (p2), \ + (cinfo)->err->msg_parm.i[2] = (p3), \ + (cinfo)->err->msg_parm.i[3] = (p4), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) +#define ERREXITS(cinfo,code,str) \ + ((cinfo)->err->msg_code = (code), \ + strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \ + (*(cinfo)->err->error_exit) ((j_common_ptr) (cinfo))) + +#define MAKESTMT(stuff) do { stuff } while (0) + +/* Nonfatal errors (we can keep going, but the data is probably corrupt) */ +#define WARNMS(cinfo,code) \ + ((cinfo)->err->msg_code = (code), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) +#define WARNMS1(cinfo,code,p1) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) +#define WARNMS2(cinfo,code,p1,p2) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (cinfo)->err->msg_parm.i[1] = (p2), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), -1)) + +/* Informational/debugging messages */ +#define TRACEMS(cinfo,lvl,code) \ + ((cinfo)->err->msg_code = (code), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) +#define TRACEMS1(cinfo,lvl,code,p1) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) +#define TRACEMS2(cinfo,lvl,code,p1,p2) \ + ((cinfo)->err->msg_code = (code), \ + (cinfo)->err->msg_parm.i[0] = (p1), \ + (cinfo)->err->msg_parm.i[1] = (p2), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) +#define TRACEMS3(cinfo,lvl,code,p1,p2,p3) \ + MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ + _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); \ + (cinfo)->err->msg_code = (code); \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) +#define TRACEMS4(cinfo,lvl,code,p1,p2,p3,p4) \ + MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ + _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ + (cinfo)->err->msg_code = (code); \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) +#define TRACEMS5(cinfo,lvl,code,p1,p2,p3,p4,p5) \ + MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ + _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ + _mp[4] = (p5); \ + (cinfo)->err->msg_code = (code); \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) +#define TRACEMS8(cinfo,lvl,code,p1,p2,p3,p4,p5,p6,p7,p8) \ + MAKESTMT(int * _mp = (cinfo)->err->msg_parm.i; \ + _mp[0] = (p1); _mp[1] = (p2); _mp[2] = (p3); _mp[3] = (p4); \ + _mp[4] = (p5); _mp[5] = (p6); _mp[6] = (p7); _mp[7] = (p8); \ + (cinfo)->err->msg_code = (code); \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl)); ) +#define TRACEMSS(cinfo,lvl,code,str) \ + ((cinfo)->err->msg_code = (code), \ + strncpy((cinfo)->err->msg_parm.s, (str), JMSG_STR_PARM_MAX), \ + (*(cinfo)->err->emit_message) ((j_common_ptr) (cinfo), (lvl))) + +#endif /* JERROR_H */ diff --git a/libs/include/jmorecfg.h b/libs/include/jmorecfg.h new file mode 100644 index 0000000..1d96786 --- /dev/null +++ b/libs/include/jmorecfg.h @@ -0,0 +1,421 @@ +/* + * jmorecfg.h + * + * This file was part of the Independent JPEG Group's software: + * Copyright (C) 1991-1997, Thomas G. Lane. + * Modified 1997-2009 by Guido Vollbeding. + * libjpeg-turbo Modifications: + * Copyright (C) 2009, 2011, 2014-2015, D. R. Commander. + * For conditions of distribution and use, see the accompanying README.ijg + * file. + * + * This file contains additional configuration options that customize the + * JPEG software for special applications or support machine-dependent + * optimizations. Most users will not need to touch this file. + */ + + +/* + * Maximum number of components (color channels) allowed in JPEG image. + * To meet the letter of the JPEG spec, set this to 255. However, darn + * few applications need more than 4 channels (maybe 5 for CMYK + alpha + * mask). We recommend 10 as a reasonable compromise; use 4 if you are + * really short on memory. (Each allowed component costs a hundred or so + * bytes of storage, whether actually used in an image or not.) + */ + +#define MAX_COMPONENTS 10 /* maximum number of image components */ + + +/* + * Basic data types. + * You may need to change these if you have a machine with unusual data + * type sizes; for example, "char" not 8 bits, "short" not 16 bits, + * or "long" not 32 bits. We don't care whether "int" is 16 or 32 bits, + * but it had better be at least 16. + */ + +/* Representation of a single sample (pixel element value). + * We frequently allocate large arrays of these, so it's important to keep + * them small. But if you have memory to burn and access to char or short + * arrays is very slow on your hardware, you might want to change these. + */ + +#if BITS_IN_JSAMPLE == 8 +/* JSAMPLE should be the smallest type that will hold the values 0..255. + * You can use a signed char by having GETJSAMPLE mask it with 0xFF. + */ + +#ifdef HAVE_UNSIGNED_CHAR + +typedef unsigned char JSAMPLE; +#define GETJSAMPLE(value) ((int) (value)) + +#else /* not HAVE_UNSIGNED_CHAR */ + +typedef char JSAMPLE; +#ifdef __CHAR_UNSIGNED__ +#define GETJSAMPLE(value) ((int) (value)) +#else +#define GETJSAMPLE(value) ((int) (value) & 0xFF) +#endif /* __CHAR_UNSIGNED__ */ + +#endif /* HAVE_UNSIGNED_CHAR */ + +#define MAXJSAMPLE 255 +#define CENTERJSAMPLE 128 + +#endif /* BITS_IN_JSAMPLE == 8 */ + + +#if BITS_IN_JSAMPLE == 12 +/* JSAMPLE should be the smallest type that will hold the values 0..4095. + * On nearly all machines "short" will do nicely. + */ + +typedef short JSAMPLE; +#define GETJSAMPLE(value) ((int) (value)) + +#define MAXJSAMPLE 4095 +#define CENTERJSAMPLE 2048 + +#endif /* BITS_IN_JSAMPLE == 12 */ + + +/* Representation of a DCT frequency coefficient. + * This should be a signed value of at least 16 bits; "short" is usually OK. + * Again, we allocate large arrays of these, but you can change to int + * if you have memory to burn and "short" is really slow. + */ + +typedef short JCOEF; + + +/* Compressed datastreams are represented as arrays of JOCTET. + * These must be EXACTLY 8 bits wide, at least once they are written to + * external storage. Note that when using the stdio data source/destination + * managers, this is also the data type passed to fread/fwrite. + */ + +#ifdef HAVE_UNSIGNED_CHAR + +typedef unsigned char JOCTET; +#define GETJOCTET(value) (value) + +#else /* not HAVE_UNSIGNED_CHAR */ + +typedef char JOCTET; +#ifdef __CHAR_UNSIGNED__ +#define GETJOCTET(value) (value) +#else +#define GETJOCTET(value) ((value) & 0xFF) +#endif /* __CHAR_UNSIGNED__ */ + +#endif /* HAVE_UNSIGNED_CHAR */ + + +/* These typedefs are used for various table entries and so forth. + * They must be at least as wide as specified; but making them too big + * won't cost a huge amount of memory, so we don't provide special + * extraction code like we did for JSAMPLE. (In other words, these + * typedefs live at a different point on the speed/space tradeoff curve.) + */ + +/* UINT8 must hold at least the values 0..255. */ + +#ifdef HAVE_UNSIGNED_CHAR +typedef unsigned char UINT8; +#else /* not HAVE_UNSIGNED_CHAR */ +#ifdef __CHAR_UNSIGNED__ +typedef char UINT8; +#else /* not __CHAR_UNSIGNED__ */ +typedef short UINT8; +#endif /* __CHAR_UNSIGNED__ */ +#endif /* HAVE_UNSIGNED_CHAR */ + +/* UINT16 must hold at least the values 0..65535. */ + +#ifdef HAVE_UNSIGNED_SHORT +typedef unsigned short UINT16; +#else /* not HAVE_UNSIGNED_SHORT */ +typedef unsigned int UINT16; +#endif /* HAVE_UNSIGNED_SHORT */ + +/* INT16 must hold at least the values -32768..32767. */ + +#ifndef XMD_H /* X11/xmd.h correctly defines INT16 */ +typedef short INT16; +#endif + +/* INT32 must hold at least signed 32-bit values. + * + * NOTE: The INT32 typedef dates back to libjpeg v5 (1994.) Integers were + * sometimes 16-bit back then (MS-DOS), which is why INT32 is typedef'd to + * long. It also wasn't common (or at least as common) in 1994 for INT32 to be + * defined by platform headers. Since then, however, INT32 is defined in + * several other common places: + * + * Xmd.h (X11 header) typedefs INT32 to int on 64-bit platforms and long on + * 32-bit platforms (i.e always a 32-bit signed type.) + * + * basetsd.h (Win32 header) typedefs INT32 to int (always a 32-bit signed type + * on modern platforms.) + * + * qglobal.h (Qt header) typedefs INT32 to int (always a 32-bit signed type on + * modern platforms.) + * + * This is a recipe for conflict, since "long" and "int" aren't always + * compatible types. Since the definition of INT32 has technically been part + * of the libjpeg API for more than 20 years, we can't remove it, but we do not + * use it internally any longer. We instead define a separate type (JLONG) + * for internal use, which ensures that internal behavior will always be the + * same regardless of any external headers that may be included. + */ + +#ifndef XMD_H /* X11/xmd.h correctly defines INT32 */ +#ifndef _BASETSD_H_ /* Microsoft defines it in basetsd.h */ +#ifndef _BASETSD_H /* MinGW is slightly different */ +#ifndef QGLOBAL_H /* Qt defines it in qglobal.h */ +typedef long INT32; +#endif +#endif +#endif +#endif + +/* Datatype used for image dimensions. The JPEG standard only supports + * images up to 64K*64K due to 16-bit fields in SOF markers. Therefore + * "unsigned int" is sufficient on all machines. However, if you need to + * handle larger images and you don't mind deviating from the spec, you + * can change this datatype. (Note that changing this datatype will + * potentially require modifying the SIMD code. The x86-64 SIMD extensions, + * in particular, assume a 32-bit JDIMENSION.) + */ + +typedef unsigned int JDIMENSION; + +#define JPEG_MAX_DIMENSION 65500L /* a tad under 64K to prevent overflows */ + + +/* These macros are used in all function definitions and extern declarations. + * You could modify them if you need to change function linkage conventions; + * in particular, you'll need to do that to make the library a Windows DLL. + * Another application is to make all functions global for use with debuggers + * or code profilers that require it. + */ + +/* a function called through method pointers: */ +#define METHODDEF(type) static type +/* a function used only in its module: */ +#define LOCAL(type) static type +/* a function referenced thru EXTERNs: */ +#define GLOBAL(type) type +/* a reference to a GLOBAL function: */ +#define EXTERN(type) extern type + + +/* Originally, this macro was used as a way of defining function prototypes + * for both modern compilers as well as older compilers that did not support + * prototype parameters. libjpeg-turbo has never supported these older, + * non-ANSI compilers, but the macro is still included because there is some + * software out there that uses it. + */ + +#define JMETHOD(type,methodname,arglist) type (*methodname) arglist + + +/* libjpeg-turbo no longer supports platforms that have far symbols (MS-DOS), + * but again, some software relies on this macro. + */ + +#undef FAR +#define FAR + + +/* + * On a few systems, type boolean and/or its values FALSE, TRUE may appear + * in standard header files. Or you may have conflicts with application- + * specific header files that you want to include together with these files. + * Defining HAVE_BOOLEAN before including jpeglib.h should make it work. + */ + +#ifndef HAVE_BOOLEAN +typedef int boolean; +#endif +#ifndef FALSE /* in case these macros already exist */ +#define FALSE 0 /* values of boolean */ +#endif +#ifndef TRUE +#define TRUE 1 +#endif + + +/* + * The remaining options affect code selection within the JPEG library, + * but they don't need to be visible to most applications using the library. + * To minimize application namespace pollution, the symbols won't be + * defined unless JPEG_INTERNALS or JPEG_INTERNAL_OPTIONS has been defined. + */ + +#ifdef JPEG_INTERNALS +#define JPEG_INTERNAL_OPTIONS +#endif + +#ifdef JPEG_INTERNAL_OPTIONS + + +/* + * These defines indicate whether to include various optional functions. + * Undefining some of these symbols will produce a smaller but less capable + * library. Note that you can leave certain source files out of the + * compilation/linking process if you've #undef'd the corresponding symbols. + * (You may HAVE to do that if your compiler doesn't like null source files.) + */ + +/* Capability options common to encoder and decoder: */ + +#define DCT_ISLOW_SUPPORTED /* slow but accurate integer algorithm */ +#define DCT_IFAST_SUPPORTED /* faster, less accurate integer method */ +#define DCT_FLOAT_SUPPORTED /* floating-point: accurate, fast on fast HW */ + +/* Encoder capability options: */ + +#define C_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ +#define C_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ +#define ENTROPY_OPT_SUPPORTED /* Optimization of entropy coding parms? */ +/* Note: if you selected 12-bit data precision, it is dangerous to turn off + * ENTROPY_OPT_SUPPORTED. The standard Huffman tables are only good for 8-bit + * precision, so jchuff.c normally uses entropy optimization to compute + * usable tables for higher precision. If you don't want to do optimization, + * you'll have to supply different default Huffman tables. + * The exact same statements apply for progressive JPEG: the default tables + * don't work for progressive mode. (This may get fixed, however.) + */ +#define INPUT_SMOOTHING_SUPPORTED /* Input image smoothing option? */ + +/* Decoder capability options: */ + +#define D_MULTISCAN_FILES_SUPPORTED /* Multiple-scan JPEG files? */ +#define D_PROGRESSIVE_SUPPORTED /* Progressive JPEG? (Requires MULTISCAN)*/ +#define SAVE_MARKERS_SUPPORTED /* jpeg_save_markers() needed? */ +#define BLOCK_SMOOTHING_SUPPORTED /* Block smoothing? (Progressive only) */ +#define IDCT_SCALING_SUPPORTED /* Output rescaling via IDCT? */ +#undef UPSAMPLE_SCALING_SUPPORTED /* Output rescaling at upsample stage? */ +#define UPSAMPLE_MERGING_SUPPORTED /* Fast path for sloppy upsampling? */ +#define QUANT_1PASS_SUPPORTED /* 1-pass color quantization? */ +#define QUANT_2PASS_SUPPORTED /* 2-pass color quantization? */ + +/* more capability options later, no doubt */ + + +/* + * The RGB_RED, RGB_GREEN, RGB_BLUE, and RGB_PIXELSIZE macros are a vestigial + * feature of libjpeg. The idea was that, if an application developer needed + * to compress from/decompress to a BGR/BGRX/RGBX/XBGR/XRGB buffer, they could + * change these macros, rebuild libjpeg, and link their application statically + * with it. In reality, few people ever did this, because there were some + * severe restrictions involved (cjpeg and djpeg no longer worked properly, + * compressing/decompressing RGB JPEGs no longer worked properly, and the color + * quantizer wouldn't work with pixel sizes other than 3.) Further, since all + * of the O/S-supplied versions of libjpeg were built with the default values + * of RGB_RED, RGB_GREEN, RGB_BLUE, and RGB_PIXELSIZE, many applications have + * come to regard these values as immutable. + * + * The libjpeg-turbo colorspace extensions provide a much cleaner way of + * compressing from/decompressing to buffers with arbitrary component orders + * and pixel sizes. Thus, we do not support changing the values of RGB_RED, + * RGB_GREEN, RGB_BLUE, or RGB_PIXELSIZE. In addition to the restrictions + * listed above, changing these values will also break the SIMD extensions and + * the regression tests. + */ + +#define RGB_RED 0 /* Offset of Red in an RGB scanline element */ +#define RGB_GREEN 1 /* Offset of Green */ +#define RGB_BLUE 2 /* Offset of Blue */ +#define RGB_PIXELSIZE 3 /* JSAMPLEs per RGB scanline element */ + +#define JPEG_NUMCS 17 + +#define EXT_RGB_RED 0 +#define EXT_RGB_GREEN 1 +#define EXT_RGB_BLUE 2 +#define EXT_RGB_PIXELSIZE 3 + +#define EXT_RGBX_RED 0 +#define EXT_RGBX_GREEN 1 +#define EXT_RGBX_BLUE 2 +#define EXT_RGBX_PIXELSIZE 4 + +#define EXT_BGR_RED 2 +#define EXT_BGR_GREEN 1 +#define EXT_BGR_BLUE 0 +#define EXT_BGR_PIXELSIZE 3 + +#define EXT_BGRX_RED 2 +#define EXT_BGRX_GREEN 1 +#define EXT_BGRX_BLUE 0 +#define EXT_BGRX_PIXELSIZE 4 + +#define EXT_XBGR_RED 3 +#define EXT_XBGR_GREEN 2 +#define EXT_XBGR_BLUE 1 +#define EXT_XBGR_PIXELSIZE 4 + +#define EXT_XRGB_RED 1 +#define EXT_XRGB_GREEN 2 +#define EXT_XRGB_BLUE 3 +#define EXT_XRGB_PIXELSIZE 4 + +static const int rgb_red[JPEG_NUMCS] = { + -1, -1, RGB_RED, -1, -1, -1, EXT_RGB_RED, EXT_RGBX_RED, + EXT_BGR_RED, EXT_BGRX_RED, EXT_XBGR_RED, EXT_XRGB_RED, + EXT_RGBX_RED, EXT_BGRX_RED, EXT_XBGR_RED, EXT_XRGB_RED, + -1 +}; + +static const int rgb_green[JPEG_NUMCS] = { + -1, -1, RGB_GREEN, -1, -1, -1, EXT_RGB_GREEN, EXT_RGBX_GREEN, + EXT_BGR_GREEN, EXT_BGRX_GREEN, EXT_XBGR_GREEN, EXT_XRGB_GREEN, + EXT_RGBX_GREEN, EXT_BGRX_GREEN, EXT_XBGR_GREEN, EXT_XRGB_GREEN, + -1 +}; + +static const int rgb_blue[JPEG_NUMCS] = { + -1, -1, RGB_BLUE, -1, -1, -1, EXT_RGB_BLUE, EXT_RGBX_BLUE, + EXT_BGR_BLUE, EXT_BGRX_BLUE, EXT_XBGR_BLUE, EXT_XRGB_BLUE, + EXT_RGBX_BLUE, EXT_BGRX_BLUE, EXT_XBGR_BLUE, EXT_XRGB_BLUE, + -1 +}; + +static const int rgb_pixelsize[JPEG_NUMCS] = { + -1, -1, RGB_PIXELSIZE, -1, -1, -1, EXT_RGB_PIXELSIZE, EXT_RGBX_PIXELSIZE, + EXT_BGR_PIXELSIZE, EXT_BGRX_PIXELSIZE, EXT_XBGR_PIXELSIZE, EXT_XRGB_PIXELSIZE, + EXT_RGBX_PIXELSIZE, EXT_BGRX_PIXELSIZE, EXT_XBGR_PIXELSIZE, EXT_XRGB_PIXELSIZE, + -1 +}; + +/* Definitions for speed-related optimizations. */ + +/* On some machines (notably 68000 series) "int" is 32 bits, but multiplying + * two 16-bit shorts is faster than multiplying two ints. Define MULTIPLIER + * as short on such a machine. MULTIPLIER must be at least 16 bits wide. + */ + +#ifndef MULTIPLIER +#ifndef WITH_SIMD +#define MULTIPLIER int /* type for fastest integer multiply */ +#else +#define MULTIPLIER short /* prefer 16-bit with SIMD for parellelism */ +#endif +#endif + + +/* FAST_FLOAT should be either float or double, whichever is done faster + * by your compiler. (Note that this type is only used in the floating point + * DCT routines, so it only matters if you've defined DCT_FLOAT_SUPPORTED.) + */ + +#ifndef FAST_FLOAT +#define FAST_FLOAT float +#endif + +#endif /* JPEG_INTERNAL_OPTIONS */ diff --git a/libs/include/jpeglib.h b/libs/include/jpeglib.h new file mode 100644 index 0000000..6c63f58 --- /dev/null +++ b/libs/include/jpeglib.h @@ -0,0 +1,1122 @@ +/* + * jpeglib.h + * + * This file was part of the Independent JPEG Group's software: + * Copyright (C) 1991-1998, Thomas G. Lane. + * Modified 2002-2009 by Guido Vollbeding. + * libjpeg-turbo Modifications: + * Copyright (C) 2009-2011, 2013-2014, 2016, D. R. Commander. + * Copyright (C) 2015, Google, Inc. + * For conditions of distribution and use, see the accompanying README.ijg + * file. + * + * This file defines the application interface for the JPEG library. + * Most applications using the library need only include this file, + * and perhaps jerror.h if they want to know the exact error codes. + */ + +#ifndef JPEGLIB_H +#define JPEGLIB_H + +/* + * First we include the configuration files that record how this + * installation of the JPEG library is set up. jconfig.h can be + * generated automatically for many systems. jmorecfg.h contains + * manual configuration options that most people need not worry about. + */ + +#ifndef JCONFIG_INCLUDED /* in case jinclude.h already did */ +#include "jconfig.h" /* widely used configuration options */ +#endif +#include "jmorecfg.h" /* seldom changed options */ + + +#ifdef __cplusplus +#ifndef DONT_USE_EXTERN_C +extern "C" { +#endif +#endif + + +/* Various constants determining the sizes of things. + * All of these are specified by the JPEG standard, so don't change them + * if you want to be compatible. + */ + +#define DCTSIZE 8 /* The basic DCT block is 8x8 samples */ +#define DCTSIZE2 64 /* DCTSIZE squared; # of elements in a block */ +#define NUM_QUANT_TBLS 4 /* Quantization tables are numbered 0..3 */ +#define NUM_HUFF_TBLS 4 /* Huffman tables are numbered 0..3 */ +#define NUM_ARITH_TBLS 16 /* Arith-coding tables are numbered 0..15 */ +#define MAX_COMPS_IN_SCAN 4 /* JPEG limit on # of components in one scan */ +#define MAX_SAMP_FACTOR 4 /* JPEG limit on sampling factors */ +/* Unfortunately, some bozo at Adobe saw no reason to be bound by the standard; + * the PostScript DCT filter can emit files with many more than 10 blocks/MCU. + * If you happen to run across such a file, you can up D_MAX_BLOCKS_IN_MCU + * to handle it. We even let you do this from the jconfig.h file. However, + * we strongly discourage changing C_MAX_BLOCKS_IN_MCU; just because Adobe + * sometimes emits noncompliant files doesn't mean you should too. + */ +#define C_MAX_BLOCKS_IN_MCU 10 /* compressor's limit on blocks per MCU */ +#ifndef D_MAX_BLOCKS_IN_MCU +#define D_MAX_BLOCKS_IN_MCU 10 /* decompressor's limit on blocks per MCU */ +#endif + + +/* Data structures for images (arrays of samples and of DCT coefficients). + */ + +typedef JSAMPLE *JSAMPROW; /* ptr to one image row of pixel samples. */ +typedef JSAMPROW *JSAMPARRAY; /* ptr to some rows (a 2-D sample array) */ +typedef JSAMPARRAY *JSAMPIMAGE; /* a 3-D sample array: top index is color */ + +typedef JCOEF JBLOCK[DCTSIZE2]; /* one block of coefficients */ +typedef JBLOCK *JBLOCKROW; /* pointer to one row of coefficient blocks */ +typedef JBLOCKROW *JBLOCKARRAY; /* a 2-D array of coefficient blocks */ +typedef JBLOCKARRAY *JBLOCKIMAGE; /* a 3-D array of coefficient blocks */ + +typedef JCOEF *JCOEFPTR; /* useful in a couple of places */ + + +/* Types for JPEG compression parameters and working tables. */ + + +/* DCT coefficient quantization tables. */ + +typedef struct { + /* This array gives the coefficient quantizers in natural array order + * (not the zigzag order in which they are stored in a JPEG DQT marker). + * CAUTION: IJG versions prior to v6a kept this array in zigzag order. + */ + UINT16 quantval[DCTSIZE2]; /* quantization step for each coefficient */ + /* This field is used only during compression. It's initialized FALSE when + * the table is created, and set TRUE when it's been output to the file. + * You could suppress output of a table by setting this to TRUE. + * (See jpeg_suppress_tables for an example.) + */ + boolean sent_table; /* TRUE when table has been output */ +} JQUANT_TBL; + + +/* Huffman coding tables. */ + +typedef struct { + /* These two fields directly represent the contents of a JPEG DHT marker */ + UINT8 bits[17]; /* bits[k] = # of symbols with codes of */ + /* length k bits; bits[0] is unused */ + UINT8 huffval[256]; /* The symbols, in order of incr code length */ + /* This field is used only during compression. It's initialized FALSE when + * the table is created, and set TRUE when it's been output to the file. + * You could suppress output of a table by setting this to TRUE. + * (See jpeg_suppress_tables for an example.) + */ + boolean sent_table; /* TRUE when table has been output */ +} JHUFF_TBL; + + +/* Basic info about one component (color channel). */ + +typedef struct { + /* These values are fixed over the whole image. */ + /* For compression, they must be supplied by parameter setup; */ + /* for decompression, they are read from the SOF marker. */ + int component_id; /* identifier for this component (0..255) */ + int component_index; /* its index in SOF or cinfo->comp_info[] */ + int h_samp_factor; /* horizontal sampling factor (1..4) */ + int v_samp_factor; /* vertical sampling factor (1..4) */ + int quant_tbl_no; /* quantization table selector (0..3) */ + /* These values may vary between scans. */ + /* For compression, they must be supplied by parameter setup; */ + /* for decompression, they are read from the SOS marker. */ + /* The decompressor output side may not use these variables. */ + int dc_tbl_no; /* DC entropy table selector (0..3) */ + int ac_tbl_no; /* AC entropy table selector (0..3) */ + + /* Remaining fields should be treated as private by applications. */ + + /* These values are computed during compression or decompression startup: */ + /* Component's size in DCT blocks. + * Any dummy blocks added to complete an MCU are not counted; therefore + * these values do not depend on whether a scan is interleaved or not. + */ + JDIMENSION width_in_blocks; + JDIMENSION height_in_blocks; + /* Size of a DCT block in samples. Always DCTSIZE for compression. + * For decompression this is the size of the output from one DCT block, + * reflecting any scaling we choose to apply during the IDCT step. + * Values from 1 to 16 are supported. + * Note that different components may receive different IDCT scalings. + */ +#if JPEG_LIB_VERSION >= 70 + int DCT_h_scaled_size; + int DCT_v_scaled_size; +#else + int DCT_scaled_size; +#endif + /* The downsampled dimensions are the component's actual, unpadded number + * of samples at the main buffer (preprocessing/compression interface), thus + * downsampled_width = ceil(image_width * Hi/Hmax) + * and similarly for height. For decompression, IDCT scaling is included, so + * downsampled_width = ceil(image_width * Hi/Hmax * DCT_[h_]scaled_size/DCTSIZE) + */ + JDIMENSION downsampled_width; /* actual width in samples */ + JDIMENSION downsampled_height; /* actual height in samples */ + /* This flag is used only for decompression. In cases where some of the + * components will be ignored (eg grayscale output from YCbCr image), + * we can skip most computations for the unused components. + */ + boolean component_needed; /* do we need the value of this component? */ + + /* These values are computed before starting a scan of the component. */ + /* The decompressor output side may not use these variables. */ + int MCU_width; /* number of blocks per MCU, horizontally */ + int MCU_height; /* number of blocks per MCU, vertically */ + int MCU_blocks; /* MCU_width * MCU_height */ + int MCU_sample_width; /* MCU width in samples, MCU_width*DCT_[h_]scaled_size */ + int last_col_width; /* # of non-dummy blocks across in last MCU */ + int last_row_height; /* # of non-dummy blocks down in last MCU */ + + /* Saved quantization table for component; NULL if none yet saved. + * See jdinput.c comments about the need for this information. + * This field is currently used only for decompression. + */ + JQUANT_TBL *quant_table; + + /* Private per-component storage for DCT or IDCT subsystem. */ + void *dct_table; +} jpeg_component_info; + + +/* The script for encoding a multiple-scan file is an array of these: */ + +typedef struct { + int comps_in_scan; /* number of components encoded in this scan */ + int component_index[MAX_COMPS_IN_SCAN]; /* their SOF/comp_info[] indexes */ + int Ss, Se; /* progressive JPEG spectral selection parms */ + int Ah, Al; /* progressive JPEG successive approx. parms */ +} jpeg_scan_info; + +/* The decompressor can save APPn and COM markers in a list of these: */ + +typedef struct jpeg_marker_struct *jpeg_saved_marker_ptr; + +struct jpeg_marker_struct { + jpeg_saved_marker_ptr next; /* next in list, or NULL */ + UINT8 marker; /* marker code: JPEG_COM, or JPEG_APP0+n */ + unsigned int original_length; /* # bytes of data in the file */ + unsigned int data_length; /* # bytes of data saved at data[] */ + JOCTET *data; /* the data contained in the marker */ + /* the marker length word is not counted in data_length or original_length */ +}; + +/* Known color spaces. */ + +#define JCS_EXTENSIONS 1 +#define JCS_ALPHA_EXTENSIONS 1 + +typedef enum { + JCS_UNKNOWN, /* error/unspecified */ + JCS_GRAYSCALE, /* monochrome */ + JCS_RGB, /* red/green/blue as specified by the RGB_RED, + RGB_GREEN, RGB_BLUE, and RGB_PIXELSIZE macros */ + JCS_YCbCr, /* Y/Cb/Cr (also known as YUV) */ + JCS_CMYK, /* C/M/Y/K */ + JCS_YCCK, /* Y/Cb/Cr/K */ + JCS_EXT_RGB, /* red/green/blue */ + JCS_EXT_RGBX, /* red/green/blue/x */ + JCS_EXT_BGR, /* blue/green/red */ + JCS_EXT_BGRX, /* blue/green/red/x */ + JCS_EXT_XBGR, /* x/blue/green/red */ + JCS_EXT_XRGB, /* x/red/green/blue */ + /* When out_color_space it set to JCS_EXT_RGBX, JCS_EXT_BGRX, JCS_EXT_XBGR, + or JCS_EXT_XRGB during decompression, the X byte is undefined, and in + order to ensure the best performance, libjpeg-turbo can set that byte to + whatever value it wishes. Use the following colorspace constants to + ensure that the X byte is set to 0xFF, so that it can be interpreted as an + opaque alpha channel. */ + JCS_EXT_RGBA, /* red/green/blue/alpha */ + JCS_EXT_BGRA, /* blue/green/red/alpha */ + JCS_EXT_ABGR, /* alpha/blue/green/red */ + JCS_EXT_ARGB, /* alpha/red/green/blue */ + JCS_RGB565 /* 5-bit red/6-bit green/5-bit blue */ +} J_COLOR_SPACE; + +/* DCT/IDCT algorithm options. */ + +typedef enum { + JDCT_ISLOW, /* slow but accurate integer algorithm */ + JDCT_IFAST, /* faster, less accurate integer method */ + JDCT_FLOAT /* floating-point: accurate, fast on fast HW */ +} J_DCT_METHOD; + +#ifndef JDCT_DEFAULT /* may be overridden in jconfig.h */ +#define JDCT_DEFAULT JDCT_ISLOW +#endif +#ifndef JDCT_FASTEST /* may be overridden in jconfig.h */ +#define JDCT_FASTEST JDCT_IFAST +#endif + +/* Dithering options for decompression. */ + +typedef enum { + JDITHER_NONE, /* no dithering */ + JDITHER_ORDERED, /* simple ordered dither */ + JDITHER_FS /* Floyd-Steinberg error diffusion dither */ +} J_DITHER_MODE; + + +/* Common fields between JPEG compression and decompression master structs. */ + +#define jpeg_common_fields \ + struct jpeg_error_mgr *err; /* Error handler module */\ + struct jpeg_memory_mgr *mem; /* Memory manager module */\ + struct jpeg_progress_mgr *progress; /* Progress monitor, or NULL if none */\ + void *client_data; /* Available for use by application */\ + boolean is_decompressor; /* So common code can tell which is which */\ + int global_state /* For checking call sequence validity */ + +/* Routines that are to be used by both halves of the library are declared + * to receive a pointer to this structure. There are no actual instances of + * jpeg_common_struct, only of jpeg_compress_struct and jpeg_decompress_struct. + */ +struct jpeg_common_struct { + jpeg_common_fields; /* Fields common to both master struct types */ + /* Additional fields follow in an actual jpeg_compress_struct or + * jpeg_decompress_struct. All three structs must agree on these + * initial fields! (This would be a lot cleaner in C++.) + */ +}; + +typedef struct jpeg_common_struct *j_common_ptr; +typedef struct jpeg_compress_struct *j_compress_ptr; +typedef struct jpeg_decompress_struct *j_decompress_ptr; + + +/* Master record for a compression instance */ + +struct jpeg_compress_struct { + jpeg_common_fields; /* Fields shared with jpeg_decompress_struct */ + + /* Destination for compressed data */ + struct jpeg_destination_mgr *dest; + + /* Description of source image --- these fields must be filled in by + * outer application before starting compression. in_color_space must + * be correct before you can even call jpeg_set_defaults(). + */ + + JDIMENSION image_width; /* input image width */ + JDIMENSION image_height; /* input image height */ + int input_components; /* # of color components in input image */ + J_COLOR_SPACE in_color_space; /* colorspace of input image */ + + double input_gamma; /* image gamma of input image */ + + /* Compression parameters --- these fields must be set before calling + * jpeg_start_compress(). We recommend calling jpeg_set_defaults() to + * initialize everything to reasonable defaults, then changing anything + * the application specifically wants to change. That way you won't get + * burnt when new parameters are added. Also note that there are several + * helper routines to simplify changing parameters. + */ + +#if JPEG_LIB_VERSION >= 70 + unsigned int scale_num, scale_denom; /* fraction by which to scale image */ + + JDIMENSION jpeg_width; /* scaled JPEG image width */ + JDIMENSION jpeg_height; /* scaled JPEG image height */ + /* Dimensions of actual JPEG image that will be written to file, + * derived from input dimensions by scaling factors above. + * These fields are computed by jpeg_start_compress(). + * You can also use jpeg_calc_jpeg_dimensions() to determine these values + * in advance of calling jpeg_start_compress(). + */ +#endif + + int data_precision; /* bits of precision in image data */ + + int num_components; /* # of color components in JPEG image */ + J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ + + jpeg_component_info *comp_info; + /* comp_info[i] describes component that appears i'th in SOF */ + + JQUANT_TBL *quant_tbl_ptrs[NUM_QUANT_TBLS]; +#if JPEG_LIB_VERSION >= 70 + int q_scale_factor[NUM_QUANT_TBLS]; +#endif + /* ptrs to coefficient quantization tables, or NULL if not defined, + * and corresponding scale factors (percentage, initialized 100). + */ + + JHUFF_TBL *dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; + JHUFF_TBL *ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; + /* ptrs to Huffman coding tables, or NULL if not defined */ + + UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ + UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ + UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ + + int num_scans; /* # of entries in scan_info array */ + const jpeg_scan_info *scan_info; /* script for multi-scan file, or NULL */ + /* The default value of scan_info is NULL, which causes a single-scan + * sequential JPEG file to be emitted. To create a multi-scan file, + * set num_scans and scan_info to point to an array of scan definitions. + */ + + boolean raw_data_in; /* TRUE=caller supplies downsampled data */ + boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ + boolean optimize_coding; /* TRUE=optimize entropy encoding parms */ + boolean CCIR601_sampling; /* TRUE=first samples are cosited */ +#if JPEG_LIB_VERSION >= 70 + boolean do_fancy_downsampling; /* TRUE=apply fancy downsampling */ +#endif + int smoothing_factor; /* 1..100, or 0 for no input smoothing */ + J_DCT_METHOD dct_method; /* DCT algorithm selector */ + + /* The restart interval can be specified in absolute MCUs by setting + * restart_interval, or in MCU rows by setting restart_in_rows + * (in which case the correct restart_interval will be figured + * for each scan). + */ + unsigned int restart_interval; /* MCUs per restart, or 0 for no restart */ + int restart_in_rows; /* if > 0, MCU rows per restart interval */ + + /* Parameters controlling emission of special markers. */ + + boolean write_JFIF_header; /* should a JFIF marker be written? */ + UINT8 JFIF_major_version; /* What to write for the JFIF version number */ + UINT8 JFIF_minor_version; + /* These three values are not used by the JPEG code, merely copied */ + /* into the JFIF APP0 marker. density_unit can be 0 for unknown, */ + /* 1 for dots/inch, or 2 for dots/cm. Note that the pixel aspect */ + /* ratio is defined by X_density/Y_density even when density_unit=0. */ + UINT8 density_unit; /* JFIF code for pixel size units */ + UINT16 X_density; /* Horizontal pixel density */ + UINT16 Y_density; /* Vertical pixel density */ + boolean write_Adobe_marker; /* should an Adobe marker be written? */ + + /* State variable: index of next scanline to be written to + * jpeg_write_scanlines(). Application may use this to control its + * processing loop, e.g., "while (next_scanline < image_height)". + */ + + JDIMENSION next_scanline; /* 0 .. image_height-1 */ + + /* Remaining fields are known throughout compressor, but generally + * should not be touched by a surrounding application. + */ + + /* + * These fields are computed during compression startup + */ + boolean progressive_mode; /* TRUE if scan script uses progressive mode */ + int max_h_samp_factor; /* largest h_samp_factor */ + int max_v_samp_factor; /* largest v_samp_factor */ + +#if JPEG_LIB_VERSION >= 70 + int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */ + int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */ +#endif + + JDIMENSION total_iMCU_rows; /* # of iMCU rows to be input to coef ctlr */ + /* The coefficient controller receives data in units of MCU rows as defined + * for fully interleaved scans (whether the JPEG file is interleaved or not). + * There are v_samp_factor * DCTSIZE sample rows of each component in an + * "iMCU" (interleaved MCU) row. + */ + + /* + * These fields are valid during any one scan. + * They describe the components and MCUs actually appearing in the scan. + */ + int comps_in_scan; /* # of JPEG components in this scan */ + jpeg_component_info *cur_comp_info[MAX_COMPS_IN_SCAN]; + /* *cur_comp_info[i] describes component that appears i'th in SOS */ + + JDIMENSION MCUs_per_row; /* # of MCUs across the image */ + JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ + + int blocks_in_MCU; /* # of DCT blocks per MCU */ + int MCU_membership[C_MAX_BLOCKS_IN_MCU]; + /* MCU_membership[i] is index in cur_comp_info of component owning */ + /* i'th block in an MCU */ + + int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ + +#if JPEG_LIB_VERSION >= 80 + int block_size; /* the basic DCT block size: 1..16 */ + const int *natural_order; /* natural-order position array */ + int lim_Se; /* min( Se, DCTSIZE2-1 ) */ +#endif + + /* + * Links to compression subobjects (methods and private variables of modules) + */ + struct jpeg_comp_master *master; + struct jpeg_c_main_controller *main; + struct jpeg_c_prep_controller *prep; + struct jpeg_c_coef_controller *coef; + struct jpeg_marker_writer *marker; + struct jpeg_color_converter *cconvert; + struct jpeg_downsampler *downsample; + struct jpeg_forward_dct *fdct; + struct jpeg_entropy_encoder *entropy; + jpeg_scan_info *script_space; /* workspace for jpeg_simple_progression */ + int script_space_size; +}; + + +/* Master record for a decompression instance */ + +struct jpeg_decompress_struct { + jpeg_common_fields; /* Fields shared with jpeg_compress_struct */ + + /* Source of compressed data */ + struct jpeg_source_mgr *src; + + /* Basic description of image --- filled in by jpeg_read_header(). */ + /* Application may inspect these values to decide how to process image. */ + + JDIMENSION image_width; /* nominal image width (from SOF marker) */ + JDIMENSION image_height; /* nominal image height */ + int num_components; /* # of color components in JPEG image */ + J_COLOR_SPACE jpeg_color_space; /* colorspace of JPEG image */ + + /* Decompression processing parameters --- these fields must be set before + * calling jpeg_start_decompress(). Note that jpeg_read_header() initializes + * them to default values. + */ + + J_COLOR_SPACE out_color_space; /* colorspace for output */ + + unsigned int scale_num, scale_denom; /* fraction by which to scale image */ + + double output_gamma; /* image gamma wanted in output */ + + boolean buffered_image; /* TRUE=multiple output passes */ + boolean raw_data_out; /* TRUE=downsampled data wanted */ + + J_DCT_METHOD dct_method; /* IDCT algorithm selector */ + boolean do_fancy_upsampling; /* TRUE=apply fancy upsampling */ + boolean do_block_smoothing; /* TRUE=apply interblock smoothing */ + + boolean quantize_colors; /* TRUE=colormapped output wanted */ + /* the following are ignored if not quantize_colors: */ + J_DITHER_MODE dither_mode; /* type of color dithering to use */ + boolean two_pass_quantize; /* TRUE=use two-pass color quantization */ + int desired_number_of_colors; /* max # colors to use in created colormap */ + /* these are significant only in buffered-image mode: */ + boolean enable_1pass_quant; /* enable future use of 1-pass quantizer */ + boolean enable_external_quant;/* enable future use of external colormap */ + boolean enable_2pass_quant; /* enable future use of 2-pass quantizer */ + + /* Description of actual output image that will be returned to application. + * These fields are computed by jpeg_start_decompress(). + * You can also use jpeg_calc_output_dimensions() to determine these values + * in advance of calling jpeg_start_decompress(). + */ + + JDIMENSION output_width; /* scaled image width */ + JDIMENSION output_height; /* scaled image height */ + int out_color_components; /* # of color components in out_color_space */ + int output_components; /* # of color components returned */ + /* output_components is 1 (a colormap index) when quantizing colors; + * otherwise it equals out_color_components. + */ + int rec_outbuf_height; /* min recommended height of scanline buffer */ + /* If the buffer passed to jpeg_read_scanlines() is less than this many rows + * high, space and time will be wasted due to unnecessary data copying. + * Usually rec_outbuf_height will be 1 or 2, at most 4. + */ + + /* When quantizing colors, the output colormap is described by these fields. + * The application can supply a colormap by setting colormap non-NULL before + * calling jpeg_start_decompress; otherwise a colormap is created during + * jpeg_start_decompress or jpeg_start_output. + * The map has out_color_components rows and actual_number_of_colors columns. + */ + int actual_number_of_colors; /* number of entries in use */ + JSAMPARRAY colormap; /* The color map as a 2-D pixel array */ + + /* State variables: these variables indicate the progress of decompression. + * The application may examine these but must not modify them. + */ + + /* Row index of next scanline to be read from jpeg_read_scanlines(). + * Application may use this to control its processing loop, e.g., + * "while (output_scanline < output_height)". + */ + JDIMENSION output_scanline; /* 0 .. output_height-1 */ + + /* Current input scan number and number of iMCU rows completed in scan. + * These indicate the progress of the decompressor input side. + */ + int input_scan_number; /* Number of SOS markers seen so far */ + JDIMENSION input_iMCU_row; /* Number of iMCU rows completed */ + + /* The "output scan number" is the notional scan being displayed by the + * output side. The decompressor will not allow output scan/row number + * to get ahead of input scan/row, but it can fall arbitrarily far behind. + */ + int output_scan_number; /* Nominal scan number being displayed */ + JDIMENSION output_iMCU_row; /* Number of iMCU rows read */ + + /* Current progression status. coef_bits[c][i] indicates the precision + * with which component c's DCT coefficient i (in zigzag order) is known. + * It is -1 when no data has yet been received, otherwise it is the point + * transform (shift) value for the most recent scan of the coefficient + * (thus, 0 at completion of the progression). + * This pointer is NULL when reading a non-progressive file. + */ + int (*coef_bits)[DCTSIZE2]; /* -1 or current Al value for each coef */ + + /* Internal JPEG parameters --- the application usually need not look at + * these fields. Note that the decompressor output side may not use + * any parameters that can change between scans. + */ + + /* Quantization and Huffman tables are carried forward across input + * datastreams when processing abbreviated JPEG datastreams. + */ + + JQUANT_TBL *quant_tbl_ptrs[NUM_QUANT_TBLS]; + /* ptrs to coefficient quantization tables, or NULL if not defined */ + + JHUFF_TBL *dc_huff_tbl_ptrs[NUM_HUFF_TBLS]; + JHUFF_TBL *ac_huff_tbl_ptrs[NUM_HUFF_TBLS]; + /* ptrs to Huffman coding tables, or NULL if not defined */ + + /* These parameters are never carried across datastreams, since they + * are given in SOF/SOS markers or defined to be reset by SOI. + */ + + int data_precision; /* bits of precision in image data */ + + jpeg_component_info *comp_info; + /* comp_info[i] describes component that appears i'th in SOF */ + +#if JPEG_LIB_VERSION >= 80 + boolean is_baseline; /* TRUE if Baseline SOF0 encountered */ +#endif + boolean progressive_mode; /* TRUE if SOFn specifies progressive mode */ + boolean arith_code; /* TRUE=arithmetic coding, FALSE=Huffman */ + + UINT8 arith_dc_L[NUM_ARITH_TBLS]; /* L values for DC arith-coding tables */ + UINT8 arith_dc_U[NUM_ARITH_TBLS]; /* U values for DC arith-coding tables */ + UINT8 arith_ac_K[NUM_ARITH_TBLS]; /* Kx values for AC arith-coding tables */ + + unsigned int restart_interval; /* MCUs per restart interval, or 0 for no restart */ + + /* These fields record data obtained from optional markers recognized by + * the JPEG library. + */ + boolean saw_JFIF_marker; /* TRUE iff a JFIF APP0 marker was found */ + /* Data copied from JFIF marker; only valid if saw_JFIF_marker is TRUE: */ + UINT8 JFIF_major_version; /* JFIF version number */ + UINT8 JFIF_minor_version; + UINT8 density_unit; /* JFIF code for pixel size units */ + UINT16 X_density; /* Horizontal pixel density */ + UINT16 Y_density; /* Vertical pixel density */ + boolean saw_Adobe_marker; /* TRUE iff an Adobe APP14 marker was found */ + UINT8 Adobe_transform; /* Color transform code from Adobe marker */ + + boolean CCIR601_sampling; /* TRUE=first samples are cosited */ + + /* Aside from the specific data retained from APPn markers known to the + * library, the uninterpreted contents of any or all APPn and COM markers + * can be saved in a list for examination by the application. + */ + jpeg_saved_marker_ptr marker_list; /* Head of list of saved markers */ + + /* Remaining fields are known throughout decompressor, but generally + * should not be touched by a surrounding application. + */ + + /* + * These fields are computed during decompression startup + */ + int max_h_samp_factor; /* largest h_samp_factor */ + int max_v_samp_factor; /* largest v_samp_factor */ + +#if JPEG_LIB_VERSION >= 70 + int min_DCT_h_scaled_size; /* smallest DCT_h_scaled_size of any component */ + int min_DCT_v_scaled_size; /* smallest DCT_v_scaled_size of any component */ +#else + int min_DCT_scaled_size; /* smallest DCT_scaled_size of any component */ +#endif + + JDIMENSION total_iMCU_rows; /* # of iMCU rows in image */ + /* The coefficient controller's input and output progress is measured in + * units of "iMCU" (interleaved MCU) rows. These are the same as MCU rows + * in fully interleaved JPEG scans, but are used whether the scan is + * interleaved or not. We define an iMCU row as v_samp_factor DCT block + * rows of each component. Therefore, the IDCT output contains + * v_samp_factor*DCT_[v_]scaled_size sample rows of a component per iMCU row. + */ + + JSAMPLE *sample_range_limit; /* table for fast range-limiting */ + + /* + * These fields are valid during any one scan. + * They describe the components and MCUs actually appearing in the scan. + * Note that the decompressor output side must not use these fields. + */ + int comps_in_scan; /* # of JPEG components in this scan */ + jpeg_component_info *cur_comp_info[MAX_COMPS_IN_SCAN]; + /* *cur_comp_info[i] describes component that appears i'th in SOS */ + + JDIMENSION MCUs_per_row; /* # of MCUs across the image */ + JDIMENSION MCU_rows_in_scan; /* # of MCU rows in the image */ + + int blocks_in_MCU; /* # of DCT blocks per MCU */ + int MCU_membership[D_MAX_BLOCKS_IN_MCU]; + /* MCU_membership[i] is index in cur_comp_info of component owning */ + /* i'th block in an MCU */ + + int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */ + +#if JPEG_LIB_VERSION >= 80 + /* These fields are derived from Se of first SOS marker. + */ + int block_size; /* the basic DCT block size: 1..16 */ + const int *natural_order; /* natural-order position array for entropy decode */ + int lim_Se; /* min( Se, DCTSIZE2-1 ) for entropy decode */ +#endif + + /* This field is shared between entropy decoder and marker parser. + * It is either zero or the code of a JPEG marker that has been + * read from the data source, but has not yet been processed. + */ + int unread_marker; + + /* + * Links to decompression subobjects (methods, private variables of modules) + */ + struct jpeg_decomp_master *master; + struct jpeg_d_main_controller *main; + struct jpeg_d_coef_controller *coef; + struct jpeg_d_post_controller *post; + struct jpeg_input_controller *inputctl; + struct jpeg_marker_reader *marker; + struct jpeg_entropy_decoder *entropy; + struct jpeg_inverse_dct *idct; + struct jpeg_upsampler *upsample; + struct jpeg_color_deconverter *cconvert; + struct jpeg_color_quantizer *cquantize; +}; + + +/* "Object" declarations for JPEG modules that may be supplied or called + * directly by the surrounding application. + * As with all objects in the JPEG library, these structs only define the + * publicly visible methods and state variables of a module. Additional + * private fields may exist after the public ones. + */ + + +/* Error handler object */ + +struct jpeg_error_mgr { + /* Error exit handler: does not return to caller */ + void (*error_exit) (j_common_ptr cinfo); + /* Conditionally emit a trace or warning message */ + void (*emit_message) (j_common_ptr cinfo, int msg_level); + /* Routine that actually outputs a trace or error message */ + void (*output_message) (j_common_ptr cinfo); + /* Format a message string for the most recent JPEG error or message */ + void (*format_message) (j_common_ptr cinfo, char *buffer); +#define JMSG_LENGTH_MAX 200 /* recommended size of format_message buffer */ + /* Reset error state variables at start of a new image */ + void (*reset_error_mgr) (j_common_ptr cinfo); + + /* The message ID code and any parameters are saved here. + * A message can have one string parameter or up to 8 int parameters. + */ + int msg_code; +#define JMSG_STR_PARM_MAX 80 + union { + int i[8]; + char s[JMSG_STR_PARM_MAX]; + } msg_parm; + + /* Standard state variables for error facility */ + + int trace_level; /* max msg_level that will be displayed */ + + /* For recoverable corrupt-data errors, we emit a warning message, + * but keep going unless emit_message chooses to abort. emit_message + * should count warnings in num_warnings. The surrounding application + * can check for bad data by seeing if num_warnings is nonzero at the + * end of processing. + */ + long num_warnings; /* number of corrupt-data warnings */ + + /* These fields point to the table(s) of error message strings. + * An application can change the table pointer to switch to a different + * message list (typically, to change the language in which errors are + * reported). Some applications may wish to add additional error codes + * that will be handled by the JPEG library error mechanism; the second + * table pointer is used for this purpose. + * + * First table includes all errors generated by JPEG library itself. + * Error code 0 is reserved for a "no such error string" message. + */ + const char * const *jpeg_message_table; /* Library errors */ + int last_jpeg_message; /* Table contains strings 0..last_jpeg_message */ + /* Second table can be added by application (see cjpeg/djpeg for example). + * It contains strings numbered first_addon_message..last_addon_message. + */ + const char * const *addon_message_table; /* Non-library errors */ + int first_addon_message; /* code for first string in addon table */ + int last_addon_message; /* code for last string in addon table */ +}; + + +/* Progress monitor object */ + +struct jpeg_progress_mgr { + void (*progress_monitor) (j_common_ptr cinfo); + + long pass_counter; /* work units completed in this pass */ + long pass_limit; /* total number of work units in this pass */ + int completed_passes; /* passes completed so far */ + int total_passes; /* total number of passes expected */ +}; + + +/* Data destination object for compression */ + +struct jpeg_destination_mgr { + JOCTET *next_output_byte; /* => next byte to write in buffer */ + size_t free_in_buffer; /* # of byte spaces remaining in buffer */ + + void (*init_destination) (j_compress_ptr cinfo); + boolean (*empty_output_buffer) (j_compress_ptr cinfo); + void (*term_destination) (j_compress_ptr cinfo); +}; + + +/* Data source object for decompression */ + +struct jpeg_source_mgr { + const JOCTET *next_input_byte; /* => next byte to read from buffer */ + size_t bytes_in_buffer; /* # of bytes remaining in buffer */ + + void (*init_source) (j_decompress_ptr cinfo); + boolean (*fill_input_buffer) (j_decompress_ptr cinfo); + void (*skip_input_data) (j_decompress_ptr cinfo, long num_bytes); + boolean (*resync_to_restart) (j_decompress_ptr cinfo, int desired); + void (*term_source) (j_decompress_ptr cinfo); +}; + + +/* Memory manager object. + * Allocates "small" objects (a few K total), "large" objects (tens of K), + * and "really big" objects (virtual arrays with backing store if needed). + * The memory manager does not allow individual objects to be freed; rather, + * each created object is assigned to a pool, and whole pools can be freed + * at once. This is faster and more convenient than remembering exactly what + * to free, especially where malloc()/free() are not too speedy. + * NB: alloc routines never return NULL. They exit to error_exit if not + * successful. + */ + +#define JPOOL_PERMANENT 0 /* lasts until master record is destroyed */ +#define JPOOL_IMAGE 1 /* lasts until done with image/datastream */ +#define JPOOL_NUMPOOLS 2 + +typedef struct jvirt_sarray_control *jvirt_sarray_ptr; +typedef struct jvirt_barray_control *jvirt_barray_ptr; + + +struct jpeg_memory_mgr { + /* Method pointers */ + void *(*alloc_small) (j_common_ptr cinfo, int pool_id, size_t sizeofobject); + void *(*alloc_large) (j_common_ptr cinfo, int pool_id, + size_t sizeofobject); + JSAMPARRAY (*alloc_sarray) (j_common_ptr cinfo, int pool_id, + JDIMENSION samplesperrow, JDIMENSION numrows); + JBLOCKARRAY (*alloc_barray) (j_common_ptr cinfo, int pool_id, + JDIMENSION blocksperrow, JDIMENSION numrows); + jvirt_sarray_ptr (*request_virt_sarray) (j_common_ptr cinfo, int pool_id, + boolean pre_zero, + JDIMENSION samplesperrow, + JDIMENSION numrows, + JDIMENSION maxaccess); + jvirt_barray_ptr (*request_virt_barray) (j_common_ptr cinfo, int pool_id, + boolean pre_zero, + JDIMENSION blocksperrow, + JDIMENSION numrows, + JDIMENSION maxaccess); + void (*realize_virt_arrays) (j_common_ptr cinfo); + JSAMPARRAY (*access_virt_sarray) (j_common_ptr cinfo, jvirt_sarray_ptr ptr, + JDIMENSION start_row, JDIMENSION num_rows, + boolean writable); + JBLOCKARRAY (*access_virt_barray) (j_common_ptr cinfo, jvirt_barray_ptr ptr, + JDIMENSION start_row, JDIMENSION num_rows, + boolean writable); + void (*free_pool) (j_common_ptr cinfo, int pool_id); + void (*self_destruct) (j_common_ptr cinfo); + + /* Limit on memory allocation for this JPEG object. (Note that this is + * merely advisory, not a guaranteed maximum; it only affects the space + * used for virtual-array buffers.) May be changed by outer application + * after creating the JPEG object. + */ + long max_memory_to_use; + + /* Maximum allocation request accepted by alloc_large. */ + long max_alloc_chunk; +}; + + +/* Routine signature for application-supplied marker processing methods. + * Need not pass marker code since it is stored in cinfo->unread_marker. + */ +typedef boolean (*jpeg_marker_parser_method) (j_decompress_ptr cinfo); + + +/* Originally, this macro was used as a way of defining function prototypes + * for both modern compilers as well as older compilers that did not support + * prototype parameters. libjpeg-turbo has never supported these older, + * non-ANSI compilers, but the macro is still included because there is some + * software out there that uses it. + */ + +#define JPP(arglist) arglist + + +/* Default error-management setup */ +EXTERN(struct jpeg_error_mgr *) jpeg_std_error (struct jpeg_error_mgr *err); + +/* Initialization of JPEG compression objects. + * jpeg_create_compress() and jpeg_create_decompress() are the exported + * names that applications should call. These expand to calls on + * jpeg_CreateCompress and jpeg_CreateDecompress with additional information + * passed for version mismatch checking. + * NB: you must set up the error-manager BEFORE calling jpeg_create_xxx. + */ +#define jpeg_create_compress(cinfo) \ + jpeg_CreateCompress((cinfo), JPEG_LIB_VERSION, \ + (size_t) sizeof(struct jpeg_compress_struct)) +#define jpeg_create_decompress(cinfo) \ + jpeg_CreateDecompress((cinfo), JPEG_LIB_VERSION, \ + (size_t) sizeof(struct jpeg_decompress_struct)) +EXTERN(void) jpeg_CreateCompress (j_compress_ptr cinfo, int version, + size_t structsize); +EXTERN(void) jpeg_CreateDecompress (j_decompress_ptr cinfo, int version, + size_t structsize); +/* Destruction of JPEG compression objects */ +EXTERN(void) jpeg_destroy_compress (j_compress_ptr cinfo); +EXTERN(void) jpeg_destroy_decompress (j_decompress_ptr cinfo); + +/* Standard data source and destination managers: stdio streams. */ +/* Caller is responsible for opening the file before and closing after. */ +EXTERN(void) jpeg_stdio_dest (j_compress_ptr cinfo, FILE *outfile); +EXTERN(void) jpeg_stdio_src (j_decompress_ptr cinfo, FILE *infile); + +#if JPEG_LIB_VERSION >= 80 || defined(MEM_SRCDST_SUPPORTED) +/* Data source and destination managers: memory buffers. */ +EXTERN(void) jpeg_mem_dest (j_compress_ptr cinfo, unsigned char **outbuffer, + unsigned long *outsize); +EXTERN(void) jpeg_mem_src (j_decompress_ptr cinfo, + const unsigned char *inbuffer, + unsigned long insize); +#endif + +/* Default parameter setup for compression */ +EXTERN(void) jpeg_set_defaults (j_compress_ptr cinfo); +/* Compression parameter setup aids */ +EXTERN(void) jpeg_set_colorspace (j_compress_ptr cinfo, + J_COLOR_SPACE colorspace); +EXTERN(void) jpeg_default_colorspace (j_compress_ptr cinfo); +EXTERN(void) jpeg_set_quality (j_compress_ptr cinfo, int quality, + boolean force_baseline); +EXTERN(void) jpeg_set_linear_quality (j_compress_ptr cinfo, int scale_factor, + boolean force_baseline); +#if JPEG_LIB_VERSION >= 70 +EXTERN(void) jpeg_default_qtables (j_compress_ptr cinfo, + boolean force_baseline); +#endif +EXTERN(void) jpeg_add_quant_table (j_compress_ptr cinfo, int which_tbl, + const unsigned int *basic_table, + int scale_factor, boolean force_baseline); +EXTERN(int) jpeg_quality_scaling (int quality); +EXTERN(void) jpeg_simple_progression (j_compress_ptr cinfo); +EXTERN(void) jpeg_suppress_tables (j_compress_ptr cinfo, boolean suppress); +EXTERN(JQUANT_TBL *) jpeg_alloc_quant_table (j_common_ptr cinfo); +EXTERN(JHUFF_TBL *) jpeg_alloc_huff_table (j_common_ptr cinfo); + +/* Main entry points for compression */ +EXTERN(void) jpeg_start_compress (j_compress_ptr cinfo, + boolean write_all_tables); +EXTERN(JDIMENSION) jpeg_write_scanlines (j_compress_ptr cinfo, + JSAMPARRAY scanlines, + JDIMENSION num_lines); +EXTERN(void) jpeg_finish_compress (j_compress_ptr cinfo); + +#if JPEG_LIB_VERSION >= 70 +/* Precalculate JPEG dimensions for current compression parameters. */ +EXTERN(void) jpeg_calc_jpeg_dimensions (j_compress_ptr cinfo); +#endif + +/* Replaces jpeg_write_scanlines when writing raw downsampled data. */ +EXTERN(JDIMENSION) jpeg_write_raw_data (j_compress_ptr cinfo, JSAMPIMAGE data, + JDIMENSION num_lines); + +/* Write a special marker. See libjpeg.txt concerning safe usage. */ +EXTERN(void) jpeg_write_marker (j_compress_ptr cinfo, int marker, + const JOCTET *dataptr, unsigned int datalen); +/* Same, but piecemeal. */ +EXTERN(void) jpeg_write_m_header (j_compress_ptr cinfo, int marker, + unsigned int datalen); +EXTERN(void) jpeg_write_m_byte (j_compress_ptr cinfo, int val); + +/* Alternate compression function: just write an abbreviated table file */ +EXTERN(void) jpeg_write_tables (j_compress_ptr cinfo); + +/* Decompression startup: read start of JPEG datastream to see what's there */ +EXTERN(int) jpeg_read_header (j_decompress_ptr cinfo, boolean require_image); +/* Return value is one of: */ +#define JPEG_SUSPENDED 0 /* Suspended due to lack of input data */ +#define JPEG_HEADER_OK 1 /* Found valid image datastream */ +#define JPEG_HEADER_TABLES_ONLY 2 /* Found valid table-specs-only datastream */ +/* If you pass require_image = TRUE (normal case), you need not check for + * a TABLES_ONLY return code; an abbreviated file will cause an error exit. + * JPEG_SUSPENDED is only possible if you use a data source module that can + * give a suspension return (the stdio source module doesn't). + */ + +/* Main entry points for decompression */ +EXTERN(boolean) jpeg_start_decompress (j_decompress_ptr cinfo); +EXTERN(JDIMENSION) jpeg_read_scanlines (j_decompress_ptr cinfo, + JSAMPARRAY scanlines, + JDIMENSION max_lines); +EXTERN(JDIMENSION) jpeg_skip_scanlines (j_decompress_ptr cinfo, + JDIMENSION num_lines); +EXTERN(void) jpeg_crop_scanline (j_decompress_ptr cinfo, JDIMENSION *xoffset, + JDIMENSION *width); +EXTERN(boolean) jpeg_finish_decompress (j_decompress_ptr cinfo); + +/* Replaces jpeg_read_scanlines when reading raw downsampled data. */ +EXTERN(JDIMENSION) jpeg_read_raw_data (j_decompress_ptr cinfo, JSAMPIMAGE data, + JDIMENSION max_lines); + +/* Additional entry points for buffered-image mode. */ +EXTERN(boolean) jpeg_has_multiple_scans (j_decompress_ptr cinfo); +EXTERN(boolean) jpeg_start_output (j_decompress_ptr cinfo, int scan_number); +EXTERN(boolean) jpeg_finish_output (j_decompress_ptr cinfo); +EXTERN(boolean) jpeg_input_complete (j_decompress_ptr cinfo); +EXTERN(void) jpeg_new_colormap (j_decompress_ptr cinfo); +EXTERN(int) jpeg_consume_input (j_decompress_ptr cinfo); +/* Return value is one of: */ +/* #define JPEG_SUSPENDED 0 Suspended due to lack of input data */ +#define JPEG_REACHED_SOS 1 /* Reached start of new scan */ +#define JPEG_REACHED_EOI 2 /* Reached end of image */ +#define JPEG_ROW_COMPLETED 3 /* Completed one iMCU row */ +#define JPEG_SCAN_COMPLETED 4 /* Completed last iMCU row of a scan */ + +/* Precalculate output dimensions for current decompression parameters. */ +#if JPEG_LIB_VERSION >= 80 +EXTERN(void) jpeg_core_output_dimensions (j_decompress_ptr cinfo); +#endif +EXTERN(void) jpeg_calc_output_dimensions (j_decompress_ptr cinfo); + +/* Control saving of COM and APPn markers into marker_list. */ +EXTERN(void) jpeg_save_markers (j_decompress_ptr cinfo, int marker_code, + unsigned int length_limit); + +/* Install a special processing method for COM or APPn markers. */ +EXTERN(void) jpeg_set_marker_processor (j_decompress_ptr cinfo, + int marker_code, + jpeg_marker_parser_method routine); + +/* Read or write raw DCT coefficients --- useful for lossless transcoding. */ +EXTERN(jvirt_barray_ptr *) jpeg_read_coefficients (j_decompress_ptr cinfo); +EXTERN(void) jpeg_write_coefficients (j_compress_ptr cinfo, + jvirt_barray_ptr *coef_arrays); +EXTERN(void) jpeg_copy_critical_parameters (j_decompress_ptr srcinfo, + j_compress_ptr dstinfo); + +/* If you choose to abort compression or decompression before completing + * jpeg_finish_(de)compress, then you need to clean up to release memory, + * temporary files, etc. You can just call jpeg_destroy_(de)compress + * if you're done with the JPEG object, but if you want to clean it up and + * reuse it, call this: + */ +EXTERN(void) jpeg_abort_compress (j_compress_ptr cinfo); +EXTERN(void) jpeg_abort_decompress (j_decompress_ptr cinfo); + +/* Generic versions of jpeg_abort and jpeg_destroy that work on either + * flavor of JPEG object. These may be more convenient in some places. + */ +EXTERN(void) jpeg_abort (j_common_ptr cinfo); +EXTERN(void) jpeg_destroy (j_common_ptr cinfo); + +/* Default restart-marker-resync procedure for use by data source modules */ +EXTERN(boolean) jpeg_resync_to_restart (j_decompress_ptr cinfo, int desired); + + +/* These marker codes are exported since applications and data source modules + * are likely to want to use them. + */ + +#define JPEG_RST0 0xD0 /* RST0 marker code */ +#define JPEG_EOI 0xD9 /* EOI marker code */ +#define JPEG_APP0 0xE0 /* APP0 marker code */ +#define JPEG_COM 0xFE /* COM marker code */ + + +/* If we have a brain-damaged compiler that emits warnings (or worse, errors) + * for structure definitions that are never filled in, keep it quiet by + * supplying dummy definitions for the various substructures. + */ + +#ifdef INCOMPLETE_TYPES_BROKEN +#ifndef JPEG_INTERNALS /* will be defined in jpegint.h */ +struct jvirt_sarray_control { long dummy; }; +struct jvirt_barray_control { long dummy; }; +struct jpeg_comp_master { long dummy; }; +struct jpeg_c_main_controller { long dummy; }; +struct jpeg_c_prep_controller { long dummy; }; +struct jpeg_c_coef_controller { long dummy; }; +struct jpeg_marker_writer { long dummy; }; +struct jpeg_color_converter { long dummy; }; +struct jpeg_downsampler { long dummy; }; +struct jpeg_forward_dct { long dummy; }; +struct jpeg_entropy_encoder { long dummy; }; +struct jpeg_decomp_master { long dummy; }; +struct jpeg_d_main_controller { long dummy; }; +struct jpeg_d_coef_controller { long dummy; }; +struct jpeg_d_post_controller { long dummy; }; +struct jpeg_input_controller { long dummy; }; +struct jpeg_marker_reader { long dummy; }; +struct jpeg_entropy_decoder { long dummy; }; +struct jpeg_inverse_dct { long dummy; }; +struct jpeg_upsampler { long dummy; }; +struct jpeg_color_deconverter { long dummy; }; +struct jpeg_color_quantizer { long dummy; }; +#endif /* JPEG_INTERNALS */ +#endif /* INCOMPLETE_TYPES_BROKEN */ + + +/* + * The JPEG library modules define JPEG_INTERNALS before including this file. + * The internal structure declarations are read only when that is true. + * Applications using the library should not include jpegint.h, but may wish + * to include jerror.h. + */ + +#ifdef JPEG_INTERNALS +#include "jpegint.h" /* fetch private declarations */ +#include "jerror.h" /* fetch error codes too */ +#endif + +#ifdef __cplusplus +#ifndef DONT_USE_EXTERN_C +} +#endif +#endif + +#endif /* JPEGLIB_H */ diff --git a/libs/include/turbojpeg.h b/libs/include/turbojpeg.h new file mode 100644 index 0000000..307dc6f --- /dev/null +++ b/libs/include/turbojpeg.h @@ -0,0 +1,1545 @@ +/* + * Copyright (C)2009-2015, 2017 D. R. Commander. All Rights Reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * - Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * - Neither the name of the libjpeg-turbo Project nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS", + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __TURBOJPEG_H__ +#define __TURBOJPEG_H__ + +#if defined(_WIN32) && defined(DLLDEFINE) +#define DLLEXPORT __declspec(dllexport) +#else +#define DLLEXPORT +#endif +#define DLLCALL + + +/** + * @addtogroup TurboJPEG + * TurboJPEG API. This API provides an interface for generating, decoding, and + * transforming planar YUV and JPEG images in memory. + * + * @anchor YUVnotes + * YUV Image Format Notes + * ---------------------- + * Technically, the JPEG format uses the YCbCr colorspace (which is technically + * not a colorspace but a color transform), but per the convention of the + * digital video community, the TurboJPEG API uses "YUV" to refer to an image + * format consisting of Y, Cb, and Cr image planes. + * + * Each plane is simply a 2D array of bytes, each byte representing the value + * of one of the components (Y, Cb, or Cr) at a particular location in the + * image. The width and height of each plane are determined by the image + * width, height, and level of chrominance subsampling. The luminance plane + * width is the image width padded to the nearest multiple of the horizontal + * subsampling factor (2 in the case of 4:2:0 and 4:2:2, 4 in the case of + * 4:1:1, 1 in the case of 4:4:4 or grayscale.) Similarly, the luminance plane + * height is the image height padded to the nearest multiple of the vertical + * subsampling factor (2 in the case of 4:2:0 or 4:4:0, 1 in the case of 4:4:4 + * or grayscale.) This is irrespective of any additional padding that may be + * specified as an argument to the various YUV functions. The chrominance + * plane width is equal to the luminance plane width divided by the horizontal + * subsampling factor, and the chrominance plane height is equal to the + * luminance plane height divided by the vertical subsampling factor. + * + * For example, if the source image is 35 x 35 pixels and 4:2:2 subsampling is + * used, then the luminance plane would be 36 x 35 bytes, and each of the + * chrominance planes would be 18 x 35 bytes. If you specify a line padding of + * 4 bytes on top of this, then the luminance plane would be 36 x 35 bytes, and + * each of the chrominance planes would be 20 x 35 bytes. + * + * @{ + */ + + +/** + * The number of chrominance subsampling options + */ +#define TJ_NUMSAMP 6 + +/** + * Chrominance subsampling options. + * When pixels are converted from RGB to YCbCr (see #TJCS_YCbCr) or from CMYK + * to YCCK (see #TJCS_YCCK) as part of the JPEG compression process, some of + * the Cb and Cr (chrominance) components can be discarded or averaged together + * to produce a smaller image with little perceptible loss of image clarity + * (the human eye is more sensitive to small changes in brightness than to + * small changes in color.) This is called "chrominance subsampling". + */ +enum TJSAMP +{ + /** + * 4:4:4 chrominance subsampling (no chrominance subsampling). The JPEG or + * YUV image will contain one chrominance component for every pixel in the + * source image. + */ + TJSAMP_444=0, + /** + * 4:2:2 chrominance subsampling. The JPEG or YUV image will contain one + * chrominance component for every 2x1 block of pixels in the source image. + */ + TJSAMP_422, + /** + * 4:2:0 chrominance subsampling. The JPEG or YUV image will contain one + * chrominance component for every 2x2 block of pixels in the source image. + */ + TJSAMP_420, + /** + * Grayscale. The JPEG or YUV image will contain no chrominance components. + */ + TJSAMP_GRAY, + /** + * 4:4:0 chrominance subsampling. The JPEG or YUV image will contain one + * chrominance component for every 1x2 block of pixels in the source image. + * + * @note 4:4:0 subsampling is not fully accelerated in libjpeg-turbo. + */ + TJSAMP_440, + /** + * 4:1:1 chrominance subsampling. The JPEG or YUV image will contain one + * chrominance component for every 4x1 block of pixels in the source image. + * JPEG images compressed with 4:1:1 subsampling will be almost exactly the + * same size as those compressed with 4:2:0 subsampling, and in the + * aggregate, both subsampling methods produce approximately the same + * perceptual quality. However, 4:1:1 is better able to reproduce sharp + * horizontal features. + * + * @note 4:1:1 subsampling is not fully accelerated in libjpeg-turbo. + */ + TJSAMP_411 +}; + +/** + * MCU block width (in pixels) for a given level of chrominance subsampling. + * MCU block sizes: + * - 8x8 for no subsampling or grayscale + * - 16x8 for 4:2:2 + * - 8x16 for 4:4:0 + * - 16x16 for 4:2:0 + * - 32x8 for 4:1:1 + */ +static const int tjMCUWidth[TJ_NUMSAMP] = {8, 16, 16, 8, 8, 32}; + +/** + * MCU block height (in pixels) for a given level of chrominance subsampling. + * MCU block sizes: + * - 8x8 for no subsampling or grayscale + * - 16x8 for 4:2:2 + * - 8x16 for 4:4:0 + * - 16x16 for 4:2:0 + * - 32x8 for 4:1:1 + */ +static const int tjMCUHeight[TJ_NUMSAMP] = {8, 8, 16, 8, 16, 8}; + + +/** + * The number of pixel formats + */ +#define TJ_NUMPF 12 + +/** + * Pixel formats + */ +enum TJPF +{ + /** + * RGB pixel format. The red, green, and blue components in the image are + * stored in 3-byte pixels in the order R, G, B from lowest to highest byte + * address within each pixel. + */ + TJPF_RGB=0, + /** + * BGR pixel format. The red, green, and blue components in the image are + * stored in 3-byte pixels in the order B, G, R from lowest to highest byte + * address within each pixel. + */ + TJPF_BGR, + /** + * RGBX pixel format. The red, green, and blue components in the image are + * stored in 4-byte pixels in the order R, G, B from lowest to highest byte + * address within each pixel. The X component is ignored when compressing + * and undefined when decompressing. + */ + TJPF_RGBX, + /** + * BGRX pixel format. The red, green, and blue components in the image are + * stored in 4-byte pixels in the order B, G, R from lowest to highest byte + * address within each pixel. The X component is ignored when compressing + * and undefined when decompressing. + */ + TJPF_BGRX, + /** + * XBGR pixel format. The red, green, and blue components in the image are + * stored in 4-byte pixels in the order R, G, B from highest to lowest byte + * address within each pixel. The X component is ignored when compressing + * and undefined when decompressing. + */ + TJPF_XBGR, + /** + * XRGB pixel format. The red, green, and blue components in the image are + * stored in 4-byte pixels in the order B, G, R from highest to lowest byte + * address within each pixel. The X component is ignored when compressing + * and undefined when decompressing. + */ + TJPF_XRGB, + /** + * Grayscale pixel format. Each 1-byte pixel represents a luminance + * (brightness) level from 0 to 255. + */ + TJPF_GRAY, + /** + * RGBA pixel format. This is the same as @ref TJPF_RGBX, except that when + * decompressing, the X component is guaranteed to be 0xFF, which can be + * interpreted as an opaque alpha channel. + */ + TJPF_RGBA, + /** + * BGRA pixel format. This is the same as @ref TJPF_BGRX, except that when + * decompressing, the X component is guaranteed to be 0xFF, which can be + * interpreted as an opaque alpha channel. + */ + TJPF_BGRA, + /** + * ABGR pixel format. This is the same as @ref TJPF_XBGR, except that when + * decompressing, the X component is guaranteed to be 0xFF, which can be + * interpreted as an opaque alpha channel. + */ + TJPF_ABGR, + /** + * ARGB pixel format. This is the same as @ref TJPF_XRGB, except that when + * decompressing, the X component is guaranteed to be 0xFF, which can be + * interpreted as an opaque alpha channel. + */ + TJPF_ARGB, + /** + * CMYK pixel format. Unlike RGB, which is an additive color model used + * primarily for display, CMYK (Cyan/Magenta/Yellow/Key) is a subtractive + * color model used primarily for printing. In the CMYK color model, the + * value of each color component typically corresponds to an amount of cyan, + * magenta, yellow, or black ink that is applied to a white background. In + * order to convert between CMYK and RGB, it is necessary to use a color + * management system (CMS.) A CMS will attempt to map colors within the + * printer's gamut to perceptually similar colors in the display's gamut and + * vice versa, but the mapping is typically not 1:1 or reversible, nor can it + * be defined with a simple formula. Thus, such a conversion is out of scope + * for a codec library. However, the TurboJPEG API allows for compressing + * CMYK pixels into a YCCK JPEG image (see #TJCS_YCCK) and decompressing YCCK + * JPEG images into CMYK pixels. + */ + TJPF_CMYK +}; + + +/** + * Red offset (in bytes) for a given pixel format. This specifies the number + * of bytes that the red component is offset from the start of the pixel. For + * instance, if a pixel of format TJ_BGRX is stored in char pixel[], + * then the red component will be pixel[tjRedOffset[TJ_BGRX]]. + */ +static const int tjRedOffset[TJ_NUMPF] = {0, 2, 0, 2, 3, 1, 0, 0, 2, 3, 1, -1}; +/** + * Green offset (in bytes) for a given pixel format. This specifies the number + * of bytes that the green component is offset from the start of the pixel. + * For instance, if a pixel of format TJ_BGRX is stored in + * char pixel[], then the green component will be + * pixel[tjGreenOffset[TJ_BGRX]]. + */ +static const int tjGreenOffset[TJ_NUMPF] = {1, 1, 1, 1, 2, 2, 0, 1, 1, 2, 2, -1}; +/** + * Blue offset (in bytes) for a given pixel format. This specifies the number + * of bytes that the Blue component is offset from the start of the pixel. For + * instance, if a pixel of format TJ_BGRX is stored in char pixel[], + * then the blue component will be pixel[tjBlueOffset[TJ_BGRX]]. + */ +static const int tjBlueOffset[TJ_NUMPF] = {2, 0, 2, 0, 1, 3, 0, 2, 0, 1, 3, -1}; +/** + * Pixel size (in bytes) for a given pixel format. + */ +static const int tjPixelSize[TJ_NUMPF] = {3, 3, 4, 4, 4, 4, 1, 4, 4, 4, 4, 4}; + + +/** + * The number of JPEG colorspaces + */ +#define TJ_NUMCS 5 + +/** + * JPEG colorspaces + */ +enum TJCS +{ + /** + * RGB colorspace. When compressing the JPEG image, the R, G, and B + * components in the source image are reordered into image planes, but no + * colorspace conversion or subsampling is performed. RGB JPEG images can be + * decompressed to any of the extended RGB pixel formats or grayscale, but + * they cannot be decompressed to YUV images. + */ + TJCS_RGB=0, + /** + * YCbCr colorspace. YCbCr is not an absolute colorspace but rather a + * mathematical transformation of RGB designed solely for storage and + * transmission. YCbCr images must be converted to RGB before they can + * actually be displayed. In the YCbCr colorspace, the Y (luminance) + * component represents the black & white portion of the original image, and + * the Cb and Cr (chrominance) components represent the color portion of the + * original image. Originally, the analog equivalent of this transformation + * allowed the same signal to drive both black & white and color televisions, + * but JPEG images use YCbCr primarily because it allows the color data to be + * optionally subsampled for the purposes of reducing bandwidth or disk + * space. YCbCr is the most common JPEG colorspace, and YCbCr JPEG images + * can be compressed from and decompressed to any of the extended RGB pixel + * formats or grayscale, or they can be decompressed to YUV planar images. + */ + TJCS_YCbCr, + /** + * Grayscale colorspace. The JPEG image retains only the luminance data (Y + * component), and any color data from the source image is discarded. + * Grayscale JPEG images can be compressed from and decompressed to any of + * the extended RGB pixel formats or grayscale, or they can be decompressed + * to YUV planar images. + */ + TJCS_GRAY, + /** + * CMYK colorspace. When compressing the JPEG image, the C, M, Y, and K + * components in the source image are reordered into image planes, but no + * colorspace conversion or subsampling is performed. CMYK JPEG images can + * only be decompressed to CMYK pixels. + */ + TJCS_CMYK, + /** + * YCCK colorspace. YCCK (AKA "YCbCrK") is not an absolute colorspace but + * rather a mathematical transformation of CMYK designed solely for storage + * and transmission. It is to CMYK as YCbCr is to RGB. CMYK pixels can be + * reversibly transformed into YCCK, and as with YCbCr, the chrominance + * components in the YCCK pixels can be subsampled without incurring major + * perceptual loss. YCCK JPEG images can only be compressed from and + * decompressed to CMYK pixels. + */ + TJCS_YCCK +}; + + +/** + * The uncompressed source/destination image is stored in bottom-up (Windows, + * OpenGL) order, not top-down (X11) order. + */ +#define TJFLAG_BOTTOMUP 2 +/** + * When decompressing an image that was compressed using chrominance + * subsampling, use the fastest chrominance upsampling algorithm available in + * the underlying codec. The default is to use smooth upsampling, which + * creates a smooth transition between neighboring chrominance components in + * order to reduce upsampling artifacts in the decompressed image. + */ +#define TJFLAG_FASTUPSAMPLE 256 +/** + * Disable buffer (re)allocation. If passed to one of the JPEG compression or + * transform functions, this flag will cause those functions to generate an + * error if the JPEG image buffer is invalid or too small rather than + * attempting to allocate or reallocate that buffer. This reproduces the + * behavior of earlier versions of TurboJPEG. + */ +#define TJFLAG_NOREALLOC 1024 +/** + * Use the fastest DCT/IDCT algorithm available in the underlying codec. The + * default if this flag is not specified is implementation-specific. For + * example, the implementation of TurboJPEG for libjpeg[-turbo] uses the fast + * algorithm by default when compressing, because this has been shown to have + * only a very slight effect on accuracy, but it uses the accurate algorithm + * when decompressing, because this has been shown to have a larger effect. + */ +#define TJFLAG_FASTDCT 2048 +/** + * Use the most accurate DCT/IDCT algorithm available in the underlying codec. + * The default if this flag is not specified is implementation-specific. For + * example, the implementation of TurboJPEG for libjpeg[-turbo] uses the fast + * algorithm by default when compressing, because this has been shown to have + * only a very slight effect on accuracy, but it uses the accurate algorithm + * when decompressing, because this has been shown to have a larger effect. + */ +#define TJFLAG_ACCURATEDCT 4096 + + +/** + * The number of transform operations + */ +#define TJ_NUMXOP 8 + +/** + * Transform operations for #tjTransform() + */ +enum TJXOP +{ + /** + * Do not transform the position of the image pixels + */ + TJXOP_NONE=0, + /** + * Flip (mirror) image horizontally. This transform is imperfect if there + * are any partial MCU blocks on the right edge (see #TJXOPT_PERFECT.) + */ + TJXOP_HFLIP, + /** + * Flip (mirror) image vertically. This transform is imperfect if there are + * any partial MCU blocks on the bottom edge (see #TJXOPT_PERFECT.) + */ + TJXOP_VFLIP, + /** + * Transpose image (flip/mirror along upper left to lower right axis.) This + * transform is always perfect. + */ + TJXOP_TRANSPOSE, + /** + * Transverse transpose image (flip/mirror along upper right to lower left + * axis.) This transform is imperfect if there are any partial MCU blocks in + * the image (see #TJXOPT_PERFECT.) + */ + TJXOP_TRANSVERSE, + /** + * Rotate image clockwise by 90 degrees. This transform is imperfect if + * there are any partial MCU blocks on the bottom edge (see + * #TJXOPT_PERFECT.) + */ + TJXOP_ROT90, + /** + * Rotate image 180 degrees. This transform is imperfect if there are any + * partial MCU blocks in the image (see #TJXOPT_PERFECT.) + */ + TJXOP_ROT180, + /** + * Rotate image counter-clockwise by 90 degrees. This transform is imperfect + * if there are any partial MCU blocks on the right edge (see + * #TJXOPT_PERFECT.) + */ + TJXOP_ROT270 +}; + + +/** + * This option will cause #tjTransform() to return an error if the transform is + * not perfect. Lossless transforms operate on MCU blocks, whose size depends + * on the level of chrominance subsampling used (see #tjMCUWidth + * and #tjMCUHeight.) If the image's width or height is not evenly divisible + * by the MCU block size, then there will be partial MCU blocks on the right + * and/or bottom edges. It is not possible to move these partial MCU blocks to + * the top or left of the image, so any transform that would require that is + * "imperfect." If this option is not specified, then any partial MCU blocks + * that cannot be transformed will be left in place, which will create + * odd-looking strips on the right or bottom edge of the image. + */ +#define TJXOPT_PERFECT 1 +/** + * This option will cause #tjTransform() to discard any partial MCU blocks that + * cannot be transformed. + */ +#define TJXOPT_TRIM 2 +/** + * This option will enable lossless cropping. See #tjTransform() for more + * information. + */ +#define TJXOPT_CROP 4 +/** + * This option will discard the color data in the input image and produce + * a grayscale output image. + */ +#define TJXOPT_GRAY 8 +/** + * This option will prevent #tjTransform() from outputting a JPEG image for + * this particular transform (this can be used in conjunction with a custom + * filter to capture the transformed DCT coefficients without transcoding + * them.) + */ +#define TJXOPT_NOOUTPUT 16 + + +/** + * Scaling factor + */ +typedef struct +{ + /** + * Numerator + */ + int num; + /** + * Denominator + */ + int denom; +} tjscalingfactor; + +/** + * Cropping region + */ +typedef struct +{ + /** + * The left boundary of the cropping region. This must be evenly divisible + * by the MCU block width (see #tjMCUWidth.) + */ + int x; + /** + * The upper boundary of the cropping region. This must be evenly divisible + * by the MCU block height (see #tjMCUHeight.) + */ + int y; + /** + * The width of the cropping region. Setting this to 0 is the equivalent of + * setting it to the width of the source JPEG image - x. + */ + int w; + /** + * The height of the cropping region. Setting this to 0 is the equivalent of + * setting it to the height of the source JPEG image - y. + */ + int h; +} tjregion; + +/** + * Lossless transform + */ +typedef struct tjtransform +{ + /** + * Cropping region + */ + tjregion r; + /** + * One of the @ref TJXOP "transform operations" + */ + int op; + /** + * The bitwise OR of one of more of the @ref TJXOPT_CROP "transform options" + */ + int options; + /** + * Arbitrary data that can be accessed within the body of the callback + * function + */ + void *data; + /** + * A callback function that can be used to modify the DCT coefficients + * after they are losslessly transformed but before they are transcoded to a + * new JPEG image. This allows for custom filters or other transformations + * to be applied in the frequency domain. + * + * @param coeffs pointer to an array of transformed DCT coefficients. (NOTE: + * this pointer is not guaranteed to be valid once the callback returns, so + * applications wishing to hand off the DCT coefficients to another function + * or library should make a copy of them within the body of the callback.) + * + * @param arrayRegion #tjregion structure containing the width and height of + * the array pointed to by coeffs as well as its offset relative to + * the component plane. TurboJPEG implementations may choose to split each + * component plane into multiple DCT coefficient arrays and call the callback + * function once for each array. + * + * @param planeRegion #tjregion structure containing the width and height of + * the component plane to which coeffs belongs + * + * @param componentID ID number of the component plane to which + * coeffs belongs (Y, Cb, and Cr have, respectively, ID's of 0, 1, + * and 2 in typical JPEG images.) + * + * @param transformID ID number of the transformed image to which + * coeffs belongs. This is the same as the index of the transform + * in the transforms array that was passed to #tjTransform(). + * + * @param transform a pointer to a #tjtransform structure that specifies the + * parameters and/or cropping region for this transform + * + * @return 0 if the callback was successful, or -1 if an error occurred. + */ + int (*customFilter)(short *coeffs, tjregion arrayRegion, + tjregion planeRegion, int componentIndex, int transformIndex, + struct tjtransform *transform); +} tjtransform; + +/** + * TurboJPEG instance handle + */ +typedef void* tjhandle; + + +/** + * Pad the given width to the nearest 32-bit boundary + */ +#define TJPAD(width) (((width)+3)&(~3)) + +/** + * Compute the scaled value of dimension using the given scaling + * factor. This macro performs the integer equivalent of ceil(dimension * + * scalingFactor). + */ +#define TJSCALED(dimension, scalingFactor) ((dimension * scalingFactor.num \ + + scalingFactor.denom - 1) / scalingFactor.denom) + + +#ifdef __cplusplus +extern "C" { +#endif + + +/** + * Create a TurboJPEG compressor instance. + * + * @return a handle to the newly-created instance, or NULL if an error + * occurred (see #tjGetErrorStr().) + */ +DLLEXPORT tjhandle DLLCALL tjInitCompress(void); + + +/** + * Compress an RGB, grayscale, or CMYK image into a JPEG image. + * + * @param handle a handle to a TurboJPEG compressor or transformer instance + * + * @param srcBuf pointer to an image buffer containing RGB, grayscale, or + * CMYK pixels to be compressed + * + * @param width width (in pixels) of the source image + * + * @param pitch bytes per line in the source image. Normally, this should be + * width * #tjPixelSize[pixelFormat] if the image is unpadded, or + * #TJPAD(width * #tjPixelSize[pixelFormat]) if each line of the image + * is padded to the nearest 32-bit boundary, as is the case for Windows + * bitmaps. You can also be clever and use this parameter to skip lines, etc. + * Setting this parameter to 0 is the equivalent of setting it to + * width * #tjPixelSize[pixelFormat]. + * + * @param height height (in pixels) of the source image + * + * @param pixelFormat pixel format of the source image (see @ref TJPF + * "Pixel formats".) + * + * @param jpegBuf address of a pointer to an image buffer that will receive the + * JPEG image. TurboJPEG has the ability to reallocate the JPEG buffer + * to accommodate the size of the JPEG image. Thus, you can choose to: + * -# pre-allocate the JPEG buffer with an arbitrary size using #tjAlloc() and + * let TurboJPEG grow the buffer as needed, + * -# set *jpegBuf to NULL to tell TurboJPEG to allocate the buffer + * for you, or + * -# pre-allocate the buffer to a "worst case" size determined by calling + * #tjBufSize(). This should ensure that the buffer never has to be + * re-allocated (setting #TJFLAG_NOREALLOC guarantees that it won't be.) + * . + * If you choose option 1, *jpegSize should be set to the size of your + * pre-allocated buffer. In any case, unless you have set #TJFLAG_NOREALLOC, + * you should always check *jpegBuf upon return from this function, as + * it may have changed. + * + * @param jpegSize pointer to an unsigned long variable that holds the size of + * the JPEG image buffer. If *jpegBuf points to a pre-allocated + * buffer, then *jpegSize should be set to the size of the buffer. + * Upon return, *jpegSize will contain the size of the JPEG image (in + * bytes.) If *jpegBuf points to a JPEG image buffer that is being + * reused from a previous call to one of the JPEG compression functions, then + * *jpegSize is ignored. + * + * @param jpegSubsamp the level of chrominance subsampling to be used when + * generating the JPEG image (see @ref TJSAMP + * "Chrominance subsampling options".) + * + * @param jpegQual the image quality of the generated JPEG image (1 = worst, + * 100 = best) + * + * @param flags the bitwise OR of one or more of the @ref TJFLAG_ACCURATEDCT + * "flags" + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) +*/ +DLLEXPORT int DLLCALL tjCompress2(tjhandle handle, const unsigned char *srcBuf, + int width, int pitch, int height, int pixelFormat, unsigned char **jpegBuf, + unsigned long *jpegSize, int jpegSubsamp, int jpegQual, int flags); + + +/** + * Compress a YUV planar image into a JPEG image. + * + * @param handle a handle to a TurboJPEG compressor or transformer instance + * + * @param srcBuf pointer to an image buffer containing a YUV planar image to be + * compressed. The size of this buffer should match the value returned by + * #tjBufSizeYUV2() for the given image width, height, padding, and level of + * chrominance subsampling. The Y, U (Cb), and V (Cr) image planes should be + * stored sequentially in the source buffer (refer to @ref YUVnotes + * "YUV Image Format Notes".) + * + * @param width width (in pixels) of the source image. If the width is not an + * even multiple of the MCU block width (see #tjMCUWidth), then an intermediate + * buffer copy will be performed within TurboJPEG. + * + * @param pad the line padding used in the source image. For instance, if each + * line in each plane of the YUV image is padded to the nearest multiple of 4 + * bytes, then pad should be set to 4. + * + * @param height height (in pixels) of the source image. If the height is not + * an even multiple of the MCU block height (see #tjMCUHeight), then an + * intermediate buffer copy will be performed within TurboJPEG. + * + * @param subsamp the level of chrominance subsampling used in the source + * image (see @ref TJSAMP "Chrominance subsampling options".) + * + * @param jpegBuf address of a pointer to an image buffer that will receive the + * JPEG image. TurboJPEG has the ability to reallocate the JPEG buffer to + * accommodate the size of the JPEG image. Thus, you can choose to: + * -# pre-allocate the JPEG buffer with an arbitrary size using #tjAlloc() and + * let TurboJPEG grow the buffer as needed, + * -# set *jpegBuf to NULL to tell TurboJPEG to allocate the buffer + * for you, or + * -# pre-allocate the buffer to a "worst case" size determined by calling + * #tjBufSize(). This should ensure that the buffer never has to be + * re-allocated (setting #TJFLAG_NOREALLOC guarantees that it won't be.) + * . + * If you choose option 1, *jpegSize should be set to the size of your + * pre-allocated buffer. In any case, unless you have set #TJFLAG_NOREALLOC, + * you should always check *jpegBuf upon return from this function, as + * it may have changed. + * + * @param jpegSize pointer to an unsigned long variable that holds the size of + * the JPEG image buffer. If *jpegBuf points to a pre-allocated + * buffer, then *jpegSize should be set to the size of the buffer. + * Upon return, *jpegSize will contain the size of the JPEG image (in + * bytes.) If *jpegBuf points to a JPEG image buffer that is being + * reused from a previous call to one of the JPEG compression functions, then + * *jpegSize is ignored. + * + * @param jpegQual the image quality of the generated JPEG image (1 = worst, + * 100 = best) + * + * @param flags the bitwise OR of one or more of the @ref TJFLAG_ACCURATEDCT + * "flags" + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) +*/ +DLLEXPORT int DLLCALL tjCompressFromYUV(tjhandle handle, + const unsigned char *srcBuf, int width, int pad, int height, int subsamp, + unsigned char **jpegBuf, unsigned long *jpegSize, int jpegQual, int flags); + + +/** + * Compress a set of Y, U (Cb), and V (Cr) image planes into a JPEG image. + * + * @param handle a handle to a TurboJPEG compressor or transformer instance + * + * @param srcPlanes an array of pointers to Y, U (Cb), and V (Cr) image planes + * (or just a Y plane, if compressing a grayscale image) that contain a YUV + * image to be compressed. These planes can be contiguous or non-contiguous in + * memory. The size of each plane should match the value returned by + * #tjPlaneSizeYUV() for the given image width, height, strides, and level of + * chrominance subsampling. Refer to @ref YUVnotes "YUV Image Format Notes" + * for more details. + * + * @param width width (in pixels) of the source image. If the width is not an + * even multiple of the MCU block width (see #tjMCUWidth), then an intermediate + * buffer copy will be performed within TurboJPEG. + * + * @param strides an array of integers, each specifying the number of bytes per + * line in the corresponding plane of the YUV source image. Setting the stride + * for any plane to 0 is the same as setting it to the plane width (see + * @ref YUVnotes "YUV Image Format Notes".) If strides is NULL, then + * the strides for all planes will be set to their respective plane widths. + * You can adjust the strides in order to specify an arbitrary amount of line + * padding in each plane or to create a JPEG image from a subregion of a larger + * YUV planar image. + * + * @param height height (in pixels) of the source image. If the height is not + * an even multiple of the MCU block height (see #tjMCUHeight), then an + * intermediate buffer copy will be performed within TurboJPEG. + * + * @param subsamp the level of chrominance subsampling used in the source + * image (see @ref TJSAMP "Chrominance subsampling options".) + * + * @param jpegBuf address of a pointer to an image buffer that will receive the + * JPEG image. TurboJPEG has the ability to reallocate the JPEG buffer to + * accommodate the size of the JPEG image. Thus, you can choose to: + * -# pre-allocate the JPEG buffer with an arbitrary size using #tjAlloc() and + * let TurboJPEG grow the buffer as needed, + * -# set *jpegBuf to NULL to tell TurboJPEG to allocate the buffer + * for you, or + * -# pre-allocate the buffer to a "worst case" size determined by calling + * #tjBufSize(). This should ensure that the buffer never has to be + * re-allocated (setting #TJFLAG_NOREALLOC guarantees that it won't be.) + * . + * If you choose option 1, *jpegSize should be set to the size of your + * pre-allocated buffer. In any case, unless you have set #TJFLAG_NOREALLOC, + * you should always check *jpegBuf upon return from this function, as + * it may have changed. + * + * @param jpegSize pointer to an unsigned long variable that holds the size of + * the JPEG image buffer. If *jpegBuf points to a pre-allocated + * buffer, then *jpegSize should be set to the size of the buffer. + * Upon return, *jpegSize will contain the size of the JPEG image (in + * bytes.) If *jpegBuf points to a JPEG image buffer that is being + * reused from a previous call to one of the JPEG compression functions, then + * *jpegSize is ignored. + * + * @param jpegQual the image quality of the generated JPEG image (1 = worst, + * 100 = best) + * + * @param flags the bitwise OR of one or more of the @ref TJFLAG_ACCURATEDCT + * "flags" + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) +*/ +DLLEXPORT int DLLCALL tjCompressFromYUVPlanes(tjhandle handle, + const unsigned char **srcPlanes, int width, const int *strides, int height, + int subsamp, unsigned char **jpegBuf, unsigned long *jpegSize, int jpegQual, + int flags); + + +/** + * The maximum size of the buffer (in bytes) required to hold a JPEG image with + * the given parameters. The number of bytes returned by this function is + * larger than the size of the uncompressed source image. The reason for this + * is that the JPEG format uses 16-bit coefficients, and it is thus possible + * for a very high-quality JPEG image with very high-frequency content to + * expand rather than compress when converted to the JPEG format. Such images + * represent a very rare corner case, but since there is no way to predict the + * size of a JPEG image prior to compression, the corner case has to be + * handled. + * + * @param width width (in pixels) of the image + * + * @param height height (in pixels) of the image + * + * @param jpegSubsamp the level of chrominance subsampling to be used when + * generating the JPEG image (see @ref TJSAMP + * "Chrominance subsampling options".) + * + * @return the maximum size of the buffer (in bytes) required to hold the + * image, or -1 if the arguments are out of bounds. + */ +DLLEXPORT unsigned long DLLCALL tjBufSize(int width, int height, + int jpegSubsamp); + + +/** + * The size of the buffer (in bytes) required to hold a YUV planar image with + * the given parameters. + * + * @param width width (in pixels) of the image + * + * @param pad the width of each line in each plane of the image is padded to + * the nearest multiple of this number of bytes (must be a power of 2.) + * + * @param height height (in pixels) of the image + * + * @param subsamp level of chrominance subsampling in the image (see + * @ref TJSAMP "Chrominance subsampling options".) + * + * @return the size of the buffer (in bytes) required to hold the image, or + * -1 if the arguments are out of bounds. + */ +DLLEXPORT unsigned long DLLCALL tjBufSizeYUV2(int width, int pad, int height, + int subsamp); + + +/** + * The size of the buffer (in bytes) required to hold a YUV image plane with + * the given parameters. + * + * @param componentID ID number of the image plane (0 = Y, 1 = U/Cb, 2 = V/Cr) + * + * @param width width (in pixels) of the YUV image. NOTE: this is the width of + * the whole image, not the plane width. + * + * @param stride bytes per line in the image plane. Setting this to 0 is the + * equivalent of setting it to the plane width. + * + * @param height height (in pixels) of the YUV image. NOTE: this is the height + * of the whole image, not the plane height. + * + * @param subsamp level of chrominance subsampling in the image (see + * @ref TJSAMP "Chrominance subsampling options".) + * + * @return the size of the buffer (in bytes) required to hold the YUV image + * plane, or -1 if the arguments are out of bounds. + */ +DLLEXPORT unsigned long DLLCALL tjPlaneSizeYUV(int componentID, int width, + int stride, int height, int subsamp); + + +/** + * The plane width of a YUV image plane with the given parameters. Refer to + * @ref YUVnotes "YUV Image Format Notes" for a description of plane width. + * + * @param componentID ID number of the image plane (0 = Y, 1 = U/Cb, 2 = V/Cr) + * + * @param width width (in pixels) of the YUV image + * + * @param subsamp level of chrominance subsampling in the image (see + * @ref TJSAMP "Chrominance subsampling options".) + * + * @return the plane width of a YUV image plane with the given parameters, or + * -1 if the arguments are out of bounds. + */ +DLLEXPORT int tjPlaneWidth(int componentID, int width, int subsamp); + + +/** + * The plane height of a YUV image plane with the given parameters. Refer to + * @ref YUVnotes "YUV Image Format Notes" for a description of plane height. + * + * @param componentID ID number of the image plane (0 = Y, 1 = U/Cb, 2 = V/Cr) + * + * @param height height (in pixels) of the YUV image + * + * @param subsamp level of chrominance subsampling in the image (see + * @ref TJSAMP "Chrominance subsampling options".) + * + * @return the plane height of a YUV image plane with the given parameters, or + * -1 if the arguments are out of bounds. + */ +DLLEXPORT int tjPlaneHeight(int componentID, int height, int subsamp); + + +/** + * Encode an RGB or grayscale image into a YUV planar image. This function + * uses the accelerated color conversion routines in the underlying + * codec but does not execute any of the other steps in the JPEG compression + * process. + * + * @param handle a handle to a TurboJPEG compressor or transformer instance + * + * @param srcBuf pointer to an image buffer containing RGB or grayscale pixels + * to be encoded + * + * @param width width (in pixels) of the source image + * + * @param pitch bytes per line in the source image. Normally, this should be + * width * #tjPixelSize[pixelFormat] if the image is unpadded, or + * #TJPAD(width * #tjPixelSize[pixelFormat]) if each line of the image + * is padded to the nearest 32-bit boundary, as is the case for Windows + * bitmaps. You can also be clever and use this parameter to skip lines, etc. + * Setting this parameter to 0 is the equivalent of setting it to + * width * #tjPixelSize[pixelFormat]. + * + * @param height height (in pixels) of the source image + * + * @param pixelFormat pixel format of the source image (see @ref TJPF + * "Pixel formats".) + * + * @param dstBuf pointer to an image buffer that will receive the YUV image. + * Use #tjBufSizeYUV2() to determine the appropriate size for this buffer based + * on the image width, height, padding, and level of chrominance subsampling. + * The Y, U (Cb), and V (Cr) image planes will be stored sequentially in the + * buffer (refer to @ref YUVnotes "YUV Image Format Notes".) + * + * @param pad the width of each line in each plane of the YUV image will be + * padded to the nearest multiple of this number of bytes (must be a power of + * 2.) To generate images suitable for X Video, pad should be set to + * 4. + * + * @param subsamp the level of chrominance subsampling to be used when + * generating the YUV image (see @ref TJSAMP + * "Chrominance subsampling options".) To generate images suitable for X + * Video, subsamp should be set to @ref TJSAMP_420. This produces an + * image compatible with the I420 (AKA "YUV420P") format. + * + * @param flags the bitwise OR of one or more of the @ref TJFLAG_ACCURATEDCT + * "flags" + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) +*/ +DLLEXPORT int DLLCALL tjEncodeYUV3(tjhandle handle, + const unsigned char *srcBuf, int width, int pitch, int height, + int pixelFormat, unsigned char *dstBuf, int pad, int subsamp, int flags); + + +/** + * Encode an RGB or grayscale image into separate Y, U (Cb), and V (Cr) image + * planes. This function uses the accelerated color conversion routines in the + * underlying codec but does not execute any of the other steps in the JPEG + * compression process. + * + * @param handle a handle to a TurboJPEG compressor or transformer instance + * + * @param srcBuf pointer to an image buffer containing RGB or grayscale pixels + * to be encoded + * + * @param width width (in pixels) of the source image + * + * @param pitch bytes per line in the source image. Normally, this should be + * width * #tjPixelSize[pixelFormat] if the image is unpadded, or + * #TJPAD(width * #tjPixelSize[pixelFormat]) if each line of the image + * is padded to the nearest 32-bit boundary, as is the case for Windows + * bitmaps. You can also be clever and use this parameter to skip lines, etc. + * Setting this parameter to 0 is the equivalent of setting it to + * width * #tjPixelSize[pixelFormat]. + * + * @param height height (in pixels) of the source image + * + * @param pixelFormat pixel format of the source image (see @ref TJPF + * "Pixel formats".) + * + * @param dstPlanes an array of pointers to Y, U (Cb), and V (Cr) image planes + * (or just a Y plane, if generating a grayscale image) that will receive the + * encoded image. These planes can be contiguous or non-contiguous in memory. + * Use #tjPlaneSizeYUV() to determine the appropriate size for each plane based + * on the image width, height, strides, and level of chrominance subsampling. + * Refer to @ref YUVnotes "YUV Image Format Notes" for more details. + * + * @param strides an array of integers, each specifying the number of bytes per + * line in the corresponding plane of the output image. Setting the stride for + * any plane to 0 is the same as setting it to the plane width (see + * @ref YUVnotes "YUV Image Format Notes".) If strides is NULL, then + * the strides for all planes will be set to their respective plane widths. + * You can adjust the strides in order to add an arbitrary amount of line + * padding to each plane or to encode an RGB or grayscale image into a + * subregion of a larger YUV planar image. + * + * @param subsamp the level of chrominance subsampling to be used when + * generating the YUV image (see @ref TJSAMP + * "Chrominance subsampling options".) To generate images suitable for X + * Video, subsamp should be set to @ref TJSAMP_420. This produces an + * image compatible with the I420 (AKA "YUV420P") format. + * + * @param flags the bitwise OR of one or more of the @ref TJFLAG_ACCURATEDCT + * "flags" + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) +*/ +DLLEXPORT int DLLCALL tjEncodeYUVPlanes(tjhandle handle, + const unsigned char *srcBuf, int width, int pitch, int height, + int pixelFormat, unsigned char **dstPlanes, int *strides, int subsamp, + int flags); + + +/** + * Create a TurboJPEG decompressor instance. + * + * @return a handle to the newly-created instance, or NULL if an error + * occurred (see #tjGetErrorStr().) +*/ +DLLEXPORT tjhandle DLLCALL tjInitDecompress(void); + + +/** + * Retrieve information about a JPEG image without decompressing it. + * + * @param handle a handle to a TurboJPEG decompressor or transformer instance + * + * @param jpegBuf pointer to a buffer containing a JPEG image + * + * @param jpegSize size of the JPEG image (in bytes) + * + * @param width pointer to an integer variable that will receive the width (in + * pixels) of the JPEG image + * + * @param height pointer to an integer variable that will receive the height + * (in pixels) of the JPEG image + * + * @param jpegSubsamp pointer to an integer variable that will receive the + * level of chrominance subsampling used when the JPEG image was compressed + * (see @ref TJSAMP "Chrominance subsampling options".) + * + * @param jpegColorspace pointer to an integer variable that will receive one + * of the JPEG colorspace constants, indicating the colorspace of the JPEG + * image (see @ref TJCS "JPEG colorspaces".) + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) +*/ +DLLEXPORT int DLLCALL tjDecompressHeader3(tjhandle handle, + const unsigned char *jpegBuf, unsigned long jpegSize, int *width, + int *height, int *jpegSubsamp, int *jpegColorspace); + + +/** + * Returns a list of fractional scaling factors that the JPEG decompressor in + * this implementation of TurboJPEG supports. + * + * @param numscalingfactors pointer to an integer variable that will receive + * the number of elements in the list + * + * @return a pointer to a list of fractional scaling factors, or NULL if an + * error is encountered (see #tjGetErrorStr().) +*/ +DLLEXPORT tjscalingfactor* DLLCALL tjGetScalingFactors(int *numscalingfactors); + + +/** + * Decompress a JPEG image to an RGB, grayscale, or CMYK image. + * + * @param handle a handle to a TurboJPEG decompressor or transformer instance + * + * @param jpegBuf pointer to a buffer containing the JPEG image to decompress + * + * @param jpegSize size of the JPEG image (in bytes) + * + * @param dstBuf pointer to an image buffer that will receive the decompressed + * image. This buffer should normally be pitch * scaledHeight bytes + * in size, where scaledHeight can be determined by calling + * #TJSCALED() with the JPEG image height and one of the scaling factors + * returned by #tjGetScalingFactors(). The dstBuf pointer may also be + * used to decompress into a specific region of a larger buffer. + * + * @param width desired width (in pixels) of the destination image. If this is + * different than the width of the JPEG image being decompressed, then + * TurboJPEG will use scaling in the JPEG decompressor to generate the largest + * possible image that will fit within the desired width. If width is + * set to 0, then only the height will be considered when determining the + * scaled image size. + * + * @param pitch bytes per line in the destination image. Normally, this is + * scaledWidth * #tjPixelSize[pixelFormat] if the decompressed image + * is unpadded, else #TJPAD(scaledWidth * #tjPixelSize[pixelFormat]) + * if each line of the decompressed image is padded to the nearest 32-bit + * boundary, as is the case for Windows bitmaps. (NOTE: scaledWidth + * can be determined by calling #TJSCALED() with the JPEG image width and one + * of the scaling factors returned by #tjGetScalingFactors().) You can also be + * clever and use the pitch parameter to skip lines, etc. Setting this + * parameter to 0 is the equivalent of setting it to + * scaledWidth * #tjPixelSize[pixelFormat]. + * + * @param height desired height (in pixels) of the destination image. If this + * is different than the height of the JPEG image being decompressed, then + * TurboJPEG will use scaling in the JPEG decompressor to generate the largest + * possible image that will fit within the desired height. If height + * is set to 0, then only the width will be considered when determining the + * scaled image size. + * + * @param pixelFormat pixel format of the destination image (see @ref + * TJPF "Pixel formats".) + * + * @param flags the bitwise OR of one or more of the @ref TJFLAG_ACCURATEDCT + * "flags" + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) + */ +DLLEXPORT int DLLCALL tjDecompress2(tjhandle handle, + const unsigned char *jpegBuf, unsigned long jpegSize, unsigned char *dstBuf, + int width, int pitch, int height, int pixelFormat, int flags); + + +/** + * Decompress a JPEG image to a YUV planar image. This function performs JPEG + * decompression but leaves out the color conversion step, so a planar YUV + * image is generated instead of an RGB image. + * + * @param handle a handle to a TurboJPEG decompressor or transformer instance + * + * @param jpegBuf pointer to a buffer containing the JPEG image to decompress + * + * @param jpegSize size of the JPEG image (in bytes) + * + * @param dstBuf pointer to an image buffer that will receive the YUV image. + * Use #tjBufSizeYUV2() to determine the appropriate size for this buffer based + * on the image width, height, padding, and level of subsampling. The Y, + * U (Cb), and V (Cr) image planes will be stored sequentially in the buffer + * (refer to @ref YUVnotes "YUV Image Format Notes".) + * + * @param width desired width (in pixels) of the YUV image. If this is + * different than the width of the JPEG image being decompressed, then + * TurboJPEG will use scaling in the JPEG decompressor to generate the largest + * possible image that will fit within the desired width. If width is + * set to 0, then only the height will be considered when determining the + * scaled image size. If the scaled width is not an even multiple of the MCU + * block width (see #tjMCUWidth), then an intermediate buffer copy will be + * performed within TurboJPEG. + * + * @param pad the width of each line in each plane of the YUV image will be + * padded to the nearest multiple of this number of bytes (must be a power of + * 2.) To generate images suitable for X Video, pad should be set to + * 4. + * + * @param height desired height (in pixels) of the YUV image. If this is + * different than the height of the JPEG image being decompressed, then + * TurboJPEG will use scaling in the JPEG decompressor to generate the largest + * possible image that will fit within the desired height. If height + * is set to 0, then only the width will be considered when determining the + * scaled image size. If the scaled height is not an even multiple of the MCU + * block height (see #tjMCUHeight), then an intermediate buffer copy will be + * performed within TurboJPEG. + * + * @param flags the bitwise OR of one or more of the @ref TJFLAG_ACCURATEDCT + * "flags" + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) + */ +DLLEXPORT int DLLCALL tjDecompressToYUV2(tjhandle handle, + const unsigned char *jpegBuf, unsigned long jpegSize, unsigned char *dstBuf, + int width, int pad, int height, int flags); + + +/** + * Decompress a JPEG image into separate Y, U (Cb), and V (Cr) image + * planes. This function performs JPEG decompression but leaves out the color + * conversion step, so a planar YUV image is generated instead of an RGB image. + * + * @param handle a handle to a TurboJPEG decompressor or transformer instance + * + * @param jpegBuf pointer to a buffer containing the JPEG image to decompress + * + * @param jpegSize size of the JPEG image (in bytes) + * + * @param dstPlanes an array of pointers to Y, U (Cb), and V (Cr) image planes + * (or just a Y plane, if decompressing a grayscale image) that will receive + * the YUV image. These planes can be contiguous or non-contiguous in memory. + * Use #tjPlaneSizeYUV() to determine the appropriate size for each plane based + * on the scaled image width, scaled image height, strides, and level of + * chrominance subsampling. Refer to @ref YUVnotes "YUV Image Format Notes" + * for more details. + * + * @param width desired width (in pixels) of the YUV image. If this is + * different than the width of the JPEG image being decompressed, then + * TurboJPEG will use scaling in the JPEG decompressor to generate the largest + * possible image that will fit within the desired width. If width is + * set to 0, then only the height will be considered when determining the + * scaled image size. If the scaled width is not an even multiple of the MCU + * block width (see #tjMCUWidth), then an intermediate buffer copy will be + * performed within TurboJPEG. + * + * @param strides an array of integers, each specifying the number of bytes per + * line in the corresponding plane of the output image. Setting the stride for + * any plane to 0 is the same as setting it to the scaled plane width (see + * @ref YUVnotes "YUV Image Format Notes".) If strides is NULL, then + * the strides for all planes will be set to their respective scaled plane + * widths. You can adjust the strides in order to add an arbitrary amount of + * line padding to each plane or to decompress the JPEG image into a subregion + * of a larger YUV planar image. + * + * @param height desired height (in pixels) of the YUV image. If this is + * different than the height of the JPEG image being decompressed, then + * TurboJPEG will use scaling in the JPEG decompressor to generate the largest + * possible image that will fit within the desired height. If height + * is set to 0, then only the width will be considered when determining the + * scaled image size. If the scaled height is not an even multiple of the MCU + * block height (see #tjMCUHeight), then an intermediate buffer copy will be + * performed within TurboJPEG. + * + * @param flags the bitwise OR of one or more of the @ref TJFLAG_ACCURATEDCT + * "flags" + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) + */ +DLLEXPORT int DLLCALL tjDecompressToYUVPlanes(tjhandle handle, + const unsigned char *jpegBuf, unsigned long jpegSize, + unsigned char **dstPlanes, int width, int *strides, int height, int flags); + + +/** + * Decode a YUV planar image into an RGB or grayscale image. This function + * uses the accelerated color conversion routines in the underlying + * codec but does not execute any of the other steps in the JPEG decompression + * process. + * + * @param handle a handle to a TurboJPEG decompressor or transformer instance + * + * @param srcBuf pointer to an image buffer containing a YUV planar image to be + * decoded. The size of this buffer should match the value returned by + * #tjBufSizeYUV2() for the given image width, height, padding, and level of + * chrominance subsampling. The Y, U (Cb), and V (Cr) image planes should be + * stored sequentially in the source buffer (refer to @ref YUVnotes + * "YUV Image Format Notes".) + * + * @param pad Use this parameter to specify that the width of each line in each + * plane of the YUV source image is padded to the nearest multiple of this + * number of bytes (must be a power of 2.) + * + * @param subsamp the level of chrominance subsampling used in the YUV source + * image (see @ref TJSAMP "Chrominance subsampling options".) + * + * @param dstBuf pointer to an image buffer that will receive the decoded + * image. This buffer should normally be pitch * height bytes in + * size, but the dstBuf pointer can also be used to decode into a + * specific region of a larger buffer. + * + * @param width width (in pixels) of the source and destination images + * + * @param pitch bytes per line in the destination image. Normally, this should + * be width * #tjPixelSize[pixelFormat] if the destination image is + * unpadded, or #TJPAD(width * #tjPixelSize[pixelFormat]) if each line + * of the destination image should be padded to the nearest 32-bit boundary, as + * is the case for Windows bitmaps. You can also be clever and use the pitch + * parameter to skip lines, etc. Setting this parameter to 0 is the equivalent + * of setting it to width * #tjPixelSize[pixelFormat]. + * + * @param height height (in pixels) of the source and destination images + * + * @param pixelFormat pixel format of the destination image (see @ref TJPF + * "Pixel formats".) + * + * @param flags the bitwise OR of one or more of the @ref TJFLAG_ACCURATEDCT + * "flags" + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) + */ +DLLEXPORT int DLLCALL tjDecodeYUV(tjhandle handle, const unsigned char *srcBuf, + int pad, int subsamp, unsigned char *dstBuf, int width, int pitch, + int height, int pixelFormat, int flags); + + +/** + * Decode a set of Y, U (Cb), and V (Cr) image planes into an RGB or grayscale + * image. This function uses the accelerated color conversion routines in the + * underlying codec but does not execute any of the other steps in the JPEG + * decompression process. + * + * @param handle a handle to a TurboJPEG decompressor or transformer instance + * + * @param srcPlanes an array of pointers to Y, U (Cb), and V (Cr) image planes + * (or just a Y plane, if decoding a grayscale image) that contain a YUV image + * to be decoded. These planes can be contiguous or non-contiguous in memory. + * The size of each plane should match the value returned by #tjPlaneSizeYUV() + * for the given image width, height, strides, and level of chrominance + * subsampling. Refer to @ref YUVnotes "YUV Image Format Notes" for more + * details. + * + * @param strides an array of integers, each specifying the number of bytes per + * line in the corresponding plane of the YUV source image. Setting the stride + * for any plane to 0 is the same as setting it to the plane width (see + * @ref YUVnotes "YUV Image Format Notes".) If strides is NULL, then + * the strides for all planes will be set to their respective plane widths. + * You can adjust the strides in order to specify an arbitrary amount of line + * padding in each plane or to decode a subregion of a larger YUV planar image. + * + * @param subsamp the level of chrominance subsampling used in the YUV source + * image (see @ref TJSAMP "Chrominance subsampling options".) + * + * @param dstBuf pointer to an image buffer that will receive the decoded + * image. This buffer should normally be pitch * height bytes in + * size, but the dstBuf pointer can also be used to decode into a + * specific region of a larger buffer. + * + * @param width width (in pixels) of the source and destination images + * + * @param pitch bytes per line in the destination image. Normally, this should + * be width * #tjPixelSize[pixelFormat] if the destination image is + * unpadded, or #TJPAD(width * #tjPixelSize[pixelFormat]) if each line + * of the destination image should be padded to the nearest 32-bit boundary, as + * is the case for Windows bitmaps. You can also be clever and use the pitch + * parameter to skip lines, etc. Setting this parameter to 0 is the equivalent + * of setting it to width * #tjPixelSize[pixelFormat]. + * + * @param height height (in pixels) of the source and destination images + * + * @param pixelFormat pixel format of the destination image (see @ref TJPF + * "Pixel formats".) + * + * @param flags the bitwise OR of one or more of the @ref TJFLAG_ACCURATEDCT + * "flags" + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) + */ +DLLEXPORT int DLLCALL tjDecodeYUVPlanes(tjhandle handle, + const unsigned char **srcPlanes, const int *strides, int subsamp, + unsigned char *dstBuf, int width, int pitch, int height, int pixelFormat, + int flags); + + +/** + * Create a new TurboJPEG transformer instance. + * + * @return a handle to the newly-created instance, or NULL if an error + * occurred (see #tjGetErrorStr().) + */ +DLLEXPORT tjhandle DLLCALL tjInitTransform(void); + + +/** + * Losslessly transform a JPEG image into another JPEG image. Lossless + * transforms work by moving the raw DCT coefficients from one JPEG image + * structure to another without altering the values of the coefficients. While + * this is typically faster than decompressing the image, transforming it, and + * re-compressing it, lossless transforms are not free. Each lossless + * transform requires reading and performing Huffman decoding on all of the + * coefficients in the source image, regardless of the size of the destination + * image. Thus, this function provides a means of generating multiple + * transformed images from the same source or applying multiple + * transformations simultaneously, in order to eliminate the need to read the + * source coefficients multiple times. + * + * @param handle a handle to a TurboJPEG transformer instance + * + * @param jpegBuf pointer to a buffer containing the JPEG source image to + * transform + * + * @param jpegSize size of the JPEG source image (in bytes) + * + * @param n the number of transformed JPEG images to generate + * + * @param dstBufs pointer to an array of n image buffers. dstBufs[i] + * will receive a JPEG image that has been transformed using the parameters in + * transforms[i]. TurboJPEG has the ability to reallocate the JPEG + * buffer to accommodate the size of the JPEG image. Thus, you can choose to: + * -# pre-allocate the JPEG buffer with an arbitrary size using #tjAlloc() and + * let TurboJPEG grow the buffer as needed, + * -# set dstBufs[i] to NULL to tell TurboJPEG to allocate the buffer + * for you, or + * -# pre-allocate the buffer to a "worst case" size determined by calling + * #tjBufSize() with the transformed or cropped width and height. Under normal + * circumstances, this should ensure that the buffer never has to be + * re-allocated (setting #TJFLAG_NOREALLOC guarantees that it won't be.) Note, + * however, that there are some rare cases (such as transforming images with a + * large amount of embedded EXIF or ICC profile data) in which the output image + * will be larger than the worst-case size, and #TJFLAG_NOREALLOC cannot be + * used in those cases. + * . + * If you choose option 1, dstSizes[i] should be set to the size of + * your pre-allocated buffer. In any case, unless you have set + * #TJFLAG_NOREALLOC, you should always check dstBufs[i] upon return + * from this function, as it may have changed. + * + * @param dstSizes pointer to an array of n unsigned long variables that will + * receive the actual sizes (in bytes) of each transformed JPEG image. If + * dstBufs[i] points to a pre-allocated buffer, then + * dstSizes[i] should be set to the size of the buffer. Upon return, + * dstSizes[i] will contain the size of the JPEG image (in bytes.) + * + * @param transforms pointer to an array of n #tjtransform structures, each of + * which specifies the transform parameters and/or cropping region for the + * corresponding transformed output image. + * + * @param flags the bitwise OR of one or more of the @ref TJFLAG_ACCURATEDCT + * "flags" + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) + */ +DLLEXPORT int DLLCALL tjTransform(tjhandle handle, + const unsigned char *jpegBuf, unsigned long jpegSize, int n, + unsigned char **dstBufs, unsigned long *dstSizes, tjtransform *transforms, + int flags); + + +/** + * Destroy a TurboJPEG compressor, decompressor, or transformer instance. + * + * @param handle a handle to a TurboJPEG compressor, decompressor or + * transformer instance + * + * @return 0 if successful, or -1 if an error occurred (see #tjGetErrorStr().) + */ +DLLEXPORT int DLLCALL tjDestroy(tjhandle handle); + + +/** + * Allocate an image buffer for use with TurboJPEG. You should always use + * this function to allocate the JPEG destination buffer(s) for the compression + * and transform functions unless you are disabling automatic buffer + * (re)allocation (by setting #TJFLAG_NOREALLOC.) + * + * @param bytes the number of bytes to allocate + * + * @return a pointer to a newly-allocated buffer with the specified number of + * bytes. + * + * @sa tjFree() + */ +DLLEXPORT unsigned char* DLLCALL tjAlloc(int bytes); + + +/** + * Free an image buffer previously allocated by TurboJPEG. You should always + * use this function to free JPEG destination buffer(s) that were automatically + * (re)allocated by the compression and transform functions or that were + * manually allocated using #tjAlloc(). + * + * @param buffer address of the buffer to free + * + * @sa tjAlloc() + */ +DLLEXPORT void DLLCALL tjFree(unsigned char *buffer); + + +/** + * Returns a descriptive error message explaining why the last command failed. + * + * @return a descriptive error message explaining why the last command failed. + */ +DLLEXPORT char* DLLCALL tjGetErrorStr(void); + + +/* Deprecated functions and macros */ +#define TJFLAG_FORCEMMX 8 +#define TJFLAG_FORCESSE 16 +#define TJFLAG_FORCESSE2 32 +#define TJFLAG_FORCESSE3 128 + + +/* Backward compatibility functions and macros (nothing to see here) */ +#define NUMSUBOPT TJ_NUMSAMP +#define TJ_444 TJSAMP_444 +#define TJ_422 TJSAMP_422 +#define TJ_420 TJSAMP_420 +#define TJ_411 TJSAMP_420 +#define TJ_GRAYSCALE TJSAMP_GRAY + +#define TJ_BGR 1 +#define TJ_BOTTOMUP TJFLAG_BOTTOMUP +#define TJ_FORCEMMX TJFLAG_FORCEMMX +#define TJ_FORCESSE TJFLAG_FORCESSE +#define TJ_FORCESSE2 TJFLAG_FORCESSE2 +#define TJ_ALPHAFIRST 64 +#define TJ_FORCESSE3 TJFLAG_FORCESSE3 +#define TJ_FASTUPSAMPLE TJFLAG_FASTUPSAMPLE +#define TJ_YUV 512 + +DLLEXPORT unsigned long DLLCALL TJBUFSIZE(int width, int height); + +DLLEXPORT unsigned long DLLCALL TJBUFSIZEYUV(int width, int height, + int jpegSubsamp); + +DLLEXPORT unsigned long DLLCALL tjBufSizeYUV(int width, int height, + int subsamp); + +DLLEXPORT int DLLCALL tjCompress(tjhandle handle, unsigned char *srcBuf, + int width, int pitch, int height, int pixelSize, unsigned char *dstBuf, + unsigned long *compressedSize, int jpegSubsamp, int jpegQual, int flags); + +DLLEXPORT int DLLCALL tjEncodeYUV(tjhandle handle, + unsigned char *srcBuf, int width, int pitch, int height, int pixelSize, + unsigned char *dstBuf, int subsamp, int flags); + +DLLEXPORT int DLLCALL tjEncodeYUV2(tjhandle handle, + unsigned char *srcBuf, int width, int pitch, int height, int pixelFormat, + unsigned char *dstBuf, int subsamp, int flags); + +DLLEXPORT int DLLCALL tjDecompressHeader(tjhandle handle, + unsigned char *jpegBuf, unsigned long jpegSize, int *width, int *height); + +DLLEXPORT int DLLCALL tjDecompressHeader2(tjhandle handle, + unsigned char *jpegBuf, unsigned long jpegSize, int *width, int *height, + int *jpegSubsamp); + +DLLEXPORT int DLLCALL tjDecompress(tjhandle handle, + unsigned char *jpegBuf, unsigned long jpegSize, unsigned char *dstBuf, + int width, int pitch, int height, int pixelSize, int flags); + +DLLEXPORT int DLLCALL tjDecompressToYUV(tjhandle handle, + unsigned char *jpegBuf, unsigned long jpegSize, unsigned char *dstBuf, + int flags); + + +/** + * @} + */ + +#ifdef __cplusplus +} +#endif + +#endif diff --git a/libs/lib/libjpeg.a b/libs/lib/libjpeg.a new file mode 100644 index 0000000..54d951d Binary files /dev/null and b/libs/lib/libjpeg.a differ diff --git a/libs/lib/libturbojpeg.a b/libs/lib/libturbojpeg.a new file mode 100644 index 0000000..076b785 Binary files /dev/null and b/libs/lib/libturbojpeg.a differ diff --git a/makefile.mk b/makefile.mk new file mode 100644 index 0000000..d2d7798 --- /dev/null +++ b/makefile.mk @@ -0,0 +1,64 @@ +# Compiling the projects with libutils logging code? +DO_LOGGING := 1 + +# Links against the wut implementation of newlib, this is useful for using any function +# from the C standard library +WUT_ENABLE_NEWLIB := 0 + +# Links against the wut implementation of stdcpp, this is useful for using any function +# from the C++ standard library. This will enable WUT_ENABLE_NEWLIB if you have not already done so. +WUT_ENABLE_CPP := 0 + +# By default newlib will allocate 90% of the default heap for use with sbrk & malloc, +# if this is unacceptable to you then you should use this as it replaces the newlib +# malloc functions which ones which redirect to the CafeOS default heap functions +# such as MEMAllocFromDefaultHeap. +WUT_DEFAULT_MALLOC := 1 + +# Target filename +TARGET := screenstreamer.mod + +# Source directories +SOURCES := src/ + +# Data directories +DATA := + +# Include directories +INCLUDES := src + +#--------------------------------------------------------------------------------- +# options for code generation and linking +#--------------------------------------------------------------------------------- +# Extra C AND C++ compiler flags +COMMON_CFLAGS := +# Extra C compiler flags +CFLAGS := +# Extra C++ compiler flags +CXXFLAGS := +# Extra linking flags for all linking steps +LDFLAGS := + +#--------------------------------------------------------------------------------- +# list of directories containing libraries, this must be the top level containing +# include and lib +#--------------------------------------------------------------------------------- +LIBDIRS := $(WUPSDIR) $(WUT_ROOT) $(CURDIR)/libs + +#--------------------------------------------------------------------------------- +# any extra libraries we wish to link with the project +#--------------------------------------------------------------------------------- +LIBS := -lwups -lutilswut -lcoreinit -lturbojpeg -lgx2 -lvpad -lnsysnet + +#--------------------------------------------------------------------------------- +# Will be added to the final lib paths +# example: +# -L$C:/library1/lib +#--------------------------------------------------------------------------------- +EXTERNAL_LIBPATHS := + +#--------------------------------------------------------------------------------- +# Will be added to the final include paths +# -IC:/library1/include +#--------------------------------------------------------------------------------- +EXTERNAL_INCLUDE := -I$(WUT_ROOT)/include/libutilswut diff --git a/src/EncodingHelper.cpp b/src/EncodingHelper.cpp new file mode 100644 index 0000000..ea5733c --- /dev/null +++ b/src/EncodingHelper.cpp @@ -0,0 +1,134 @@ +/**************************************************************************** + * Copyright (C) 2018 Maschell + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + ****************************************************************************/ + +#include +#include "EncodingHelper.h" +#include "MJPEGStreamServer.hpp" +#include "stream_utils.h" +#include "JpegInformation.h" +#include +#include +#include + +EncodingHelper *EncodingHelper::instance = NULL; + +OSMessageQueue encodeQueue __attribute__((section(".data"))); +OSMessage encodeQueueMessages[ENCODE_QUEUE_MESSAGE_COUNT] __attribute__((section(".data"))); + +void EncodingHelper::StartAsyncThread() { + int32_t priority = 17; + this->pThread = CThread::create(DoAsyncThread, this, CThread::eAttributeAffCore0, priority,0x40000); + this->pThread->resumeThread(); +} + +void EncodingHelper::DoAsyncThread(CThread *thread, void *arg) { + EncodingHelper * arg_instance = (EncodingHelper *) arg; + return arg_instance->DoAsyncThreadInternal(thread); +} + + +JpegInformation * convertToJpeg(uint8_t * sourceBuffer, uint32_t width, uint32_t height, uint32_t pitch, uint32_t format, int quality) { + if(sourceBuffer == NULL) { + DEBUG_FUNCTION_LINE("path or buffer NULL\n"); + return NULL; + } + if(( format != GX2_SURFACE_FORMAT_SRGB_R8_G8_B8_A8 && + format != GX2_SURFACE_FORMAT_UNORM_R8_G8_B8_A8)) { + DEBUG_FUNCTION_LINE("Format not supported\n"); + return NULL; + } + + tjhandle handle = tjInitCompress(); + + if(handle == NULL) { + const char *err = (const char *) tjGetErrorStr(); + DEBUG_FUNCTION_LINE("TJ Error: %s UNABLE TO INIT TJ Compressor Object\n",err); + return NULL; + } + + int jpegQual = quality; + int nbands = 4; + int flags = 0; + unsigned char* jpegBuf = NULL; + + int pixelFormat = TJPF_GRAY; + int jpegSubsamp = TJSAMP_GRAY; + if(nbands == 4) { + pixelFormat = TJPF_RGBA; + jpegSubsamp = TJSAMP_411; + } + unsigned long jpegSize = 0; + + int tj_stat = tjCompress2( handle, sourceBuffer, width, pitch * nbands, height, pixelFormat, &(jpegBuf), &jpegSize, jpegSubsamp, jpegQual, flags); + if(tj_stat != 0) { + const char *err = (const char *) tjGetErrorStr(); + DEBUG_FUNCTION_LINE("TurboJPEG Error: %s UNABLE TO COMPRESS JPEG IMAGE\n", err); + tjDestroy(handle); + } else { + return new JpegInformation(handle, jpegBuf, jpegSize); + } + + return NULL; +} + +void EncodingHelper::DoAsyncThreadInternal(CThread *thread) { + serverRunning = true; + + OSMessage message; + GX2ColorBuffer * colorBuffer = NULL; + shouldExit = false; + while(true) { + //DEBUG_FUNCTION_LINE("Waiting for message in EncoderHelper\n"); + if(!OSReceiveMessage(&encodeQueue,&message,OS_MESSAGE_FLAGS_NONE)) { + //DEBUG_FUNCTION_LINE("... %08X\n",this->shouldExit); + if(this->shouldExit) { + DEBUG_FUNCTION_LINE("We should stop\n"); + break; + } + OSSleepTicks(OSMicrosecondsToTicks(5000)); + continue; + } + DCFlushRange(&message,sizeof(OSMessage)); + + //DEBUG_FUNCTION_LINE("Received message %08X: data1 %08X\n",message.message,message.args[1]); + if((uint32_t) message.message == 0xDEADBEEF) { + //DEBUG_FUNCTION_LINE("We should stop the server\n"); + break; + } + + colorBuffer = (GX2ColorBuffer *) message.args[1]; + + JpegInformation * info = convertToJpeg((uint8_t*) colorBuffer->surface.image,colorBuffer->surface.width,colorBuffer->surface.height,colorBuffer->surface.pitch,colorBuffer->surface.format,85); + + if(info != NULL ) { + MJPEGStreamServer::getInstance()->streamJPEG(info); + } + + //DEBUG_FUNCTION_LINE("We can now kill the colorBuffer\n",colorBuffer); + if(colorBuffer->surface.image != NULL) { + free(colorBuffer->surface.image); + colorBuffer->surface.image = NULL; + //DEBUG_FUNCTION_LINE("Free image data for %08X\n",colorBuffer); + } + free(colorBuffer); + colorBuffer = NULL; + //DEBUG_FUNCTION_LINE("Encoding Done.\n"); + } + DEBUG_FUNCTION_LINE("Server not running anymore\n"); + serverRunning = false; + DCFlushRange((void*)&serverRunning,sizeof(serverRunning)); +} diff --git a/src/EncodingHelper.h b/src/EncodingHelper.h new file mode 100644 index 0000000..e35e65e --- /dev/null +++ b/src/EncodingHelper.h @@ -0,0 +1,94 @@ +/**************************************************************************** + * Copyright (C) 2018 Maschell + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + ****************************************************************************/ + +#ifndef __ENCODING_HELPER_H_ +#define __ENCODING_HELPER_H_ + +#include +#include + +#include +#include +#include +#include + + +#define ENCODE_QUEUE_MESSAGE_COUNT 1 + +extern OSMessageQueue encodeQueue; +extern OSMessage encodeQueueMessages[ENCODE_QUEUE_MESSAGE_COUNT]; + + +class EncodingHelper { +public: + static EncodingHelper * getInstance() { + if(!instance) { + instance = new EncodingHelper(); + } + + return instance; + } + + static void destroyInstance() { + if(instance) { + instance->StopAsyncThread(); + while(instance->serverRunning) { + OSSleepTicks(OSMicrosecondsToTicks(1000)); + } + OSSleepTicks(OSMillisecondsToTicks(500)); + delete instance; + instance = NULL; + } + MJPEGStreamServer::destroyInstance(); + } + + static bool addFSQueueMSG(OSMessage message) { + if(!OSSendMessage(&encodeQueue,&message,OS_MESSAGE_FLAGS_NONE)) { + //DEBUG_FUNCTION_LINE("Dropping frame\n"); + return false; + }; + return true; + } + + void StartAsyncThread(); + + void StopAsyncThread() { + DEBUG_FUNCTION_LINE("StopAsyncThread\n"); + shouldExit = true; + DCFlushRange((void*) &shouldExit,sizeof(shouldExit)); + } + +private: + EncodingHelper() { + OSInitMessageQueue(&encodeQueue, encodeQueueMessages, ENCODE_QUEUE_MESSAGE_COUNT); + DEBUG_FUNCTION_LINE("Init queue done! \n"); + } + + static void DoAsyncThread(CThread *thread, void *arg); + + + void DoAsyncThreadInternal(CThread *thread); + + CThread *pThread; + + volatile bool serverRunning = false; + + volatile bool shouldExit = false; + + static EncodingHelper * instance; +}; +#endif // __ENCODING_HELPER_H_ diff --git a/src/JpegInformation.cpp b/src/JpegInformation.cpp new file mode 100644 index 0000000..9542ed5 --- /dev/null +++ b/src/JpegInformation.cpp @@ -0,0 +1,15 @@ +#include "JpegInformation.h" +#include + +JpegInformation::JpegInformation(tjhandle handle, uint8_t* jpegBuf, uint64_t jpegSize) { + this->buffer = jpegBuf; + this->size = jpegSize; + this->handle = handle; +} + +JpegInformation::~JpegInformation() { + if(this->buffer) { + free(this->buffer); + } + tjDestroy(this->handle); +} diff --git a/src/JpegInformation.h b/src/JpegInformation.h new file mode 100644 index 0000000..b1e6d69 --- /dev/null +++ b/src/JpegInformation.h @@ -0,0 +1,26 @@ +#ifndef JPEGINFORMATION_H +#define JPEGINFORMATION_H + +#include +#include + +class JpegInformation { +public: + JpegInformation(tjhandle handle, uint8_t* jpegBuf, uint64_t jpegSize); + virtual ~JpegInformation(); + + uint8_t * getBuffer() { + return buffer; + }; + uint64_t getSize() { + return size; + }; + +private: + uint8_t* buffer; + uint64_t size; + tjhandle handle; + +}; + +#endif // JPEGINFORMATION_H diff --git a/src/MJPEGStreamServer.cpp b/src/MJPEGStreamServer.cpp new file mode 100644 index 0000000..ad021ff --- /dev/null +++ b/src/MJPEGStreamServer.cpp @@ -0,0 +1,130 @@ +/**************************************************************************** + * Copyright (C) 2018 Maschell + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + ****************************************************************************/ +#include "MJPEGStreamServer.hpp" +#include "turbojpeg.h" +#include +#include +#include + +#include +#include +#include +#include + +OSMessageQueue streamSendQueue __attribute__((section(".data"))); +OSMessage streamSendQueueMessages[STREAM_SEND_QUEUE_MESSAGE_COUNT] __attribute__((section(".data"))); + +MJPEGStreamServer * MJPEGStreamServer::instance = NULL; + +MJPEGStreamServer::MJPEGStreamServer(int32_t port): TCPServer(port,MJPEGStreamServer::getPriority()) { + OSInitMessageQueue(&streamSendQueue, streamSendQueueMessages, STREAM_SEND_QUEUE_MESSAGE_COUNT); +} + +MJPEGStreamServer::~MJPEGStreamServer() { + +} + +/** + The sendwait from is reaaally slow. +**/ +int32_t mysendwait(int32_t sock, const void *buffer, int32_t len) { + int32_t ret; + while (len > 0) { + ret = send(sock, buffer, len, 0); + if(ret < 0) { + return ret; + } + len -= ret; + buffer = (void *)(((char *) buffer) + ret); + } + return 0; +} + +void MJPEGStreamServer::sendJPEG(uint8_t * buffer, uint64_t size) { + int32_t clientfd = getClientFD(); + + char str[90]; + snprintf(str, 90, "\r\n--boundary\r\nContent-Type: image/jpeg\r\nContent-Length: %llu \r\n\r\n", size); + + mysendwait(clientfd, str, strlen(str)); + mysendwait(clientfd, buffer, size); + + //DEBUG_FUNCTION_LINE("Send frame\n"); +} + + +BOOL MJPEGStreamServer::whileLoop() { + int32_t ret; + int32_t clientfd = getClientFD(); + + OSMessage message; + + while (1) { + ret = checkbyte(clientfd); + if (ret < 0) { + if(socketlasterr() != 6) { + // Ending Server on error. + return false; + } + } + + //DEBUG_FUNCTION_LINE("Waiting\n",message.message,message.data1); + while(!OSReceiveMessage(&streamSendQueue,&message,OS_MESSAGE_FLAGS_NONE)) { + if(shouldExit()) { + break; + } + OSSleepTicks(OSMicrosecondsToTicks(500)); + } + if((uint32_t) message.message == 0x1234) { + continue; + } + + if((uint32_t) message.message == 0xDEADBEEF) { + DEBUG_FUNCTION_LINE("We should exit\n"); + break; + } + + DCFlushRange(&message,sizeof(OSMessage)); + + JpegInformation * info = (JpegInformation *) message.args[0]; + if(info != NULL) { + DCFlushRange(info,sizeof(JpegInformation)); + sendJPEG(info->getBuffer(),info->getSize()); + delete info; + } + } + return true; +} + +const char * headerHTTP = "HTTP/1.1 200 OK\r\nContent-Type: multipart/x-mixed-replace; boundary=--boundary\r\n"; + +BOOL MJPEGStreamServer::acceptConnection() { + int32_t clientfd = getClientFD(); + DEBUG_FUNCTION_LINE("TCP Connection accepted! \n"); + + mysendwait(clientfd, headerHTTP, strlen(headerHTTP)); + + // Consume the first response of the browser. + while(checkbyte(clientfd) > 0); + + DEBUG_FUNCTION_LINE("Handshake done! Success!\n"); + return true; +} + +void MJPEGStreamServer::onConnectionClosed() { + DEBUG_FUNCTION_LINE("disconnected\n"); +} diff --git a/src/MJPEGStreamServer.hpp b/src/MJPEGStreamServer.hpp new file mode 100644 index 0000000..9505df5 --- /dev/null +++ b/src/MJPEGStreamServer.hpp @@ -0,0 +1,104 @@ +/**************************************************************************** + * Copyright (C) 2018 Maschell + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + ****************************************************************************/ +#ifndef _MJPEG_STREAM_SERVER_H_ +#define _MJPEG_STREAM_SERVER_H_ + +#include +#include +#include +#include "turbojpeg.h" +#include "JpegInformation.h" + +#define STREAM_SEND_QUEUE_MESSAGE_COUNT 1 + +extern OSMessageQueue streamSendQueue; +extern OSMessage streamSendQueueMessages[STREAM_SEND_QUEUE_MESSAGE_COUNT]; + + +class MJPEGStreamServer: TCPServer { + +public: + static MJPEGStreamServer *getInstance() { + if(!instance) { + instance = new MJPEGStreamServer(8080); + } + return instance; + } + + static void destroyInstance() { + if(instance) { + instance->StopAsyncThread(); + while(instance->isConnected()) { + OSSleepTicks(OSMicrosecondsToTicks(1000)); + } + OSSleepTicks(OSMillisecondsToTicks(500)); + delete instance; + instance = NULL; + } + } + + void StopAsyncThread() { + DEBUG_FUNCTION_LINE("StopAsyncThread\n"); + OSMessage message; + message.message = (void *)0xDEADBEEF; + OSSendMessage(&streamSendQueue,&message,OS_MESSAGE_FLAGS_BLOCKING); + } + + + static int32_t getPriority() { + return 10; + } + + static volatile bool isInstanceConnected() { + if(instance) { + return instance->isConnected(); + } + return false; + } + + MJPEGStreamServer(int32_t port); + + void sendJPEG(uint8_t * buffer, uint64_t size); + + virtual bool streamJPEG(JpegInformation * info) { + if(this->isConnected()) { + OSMessage message; + message.message = (void *) 0x11111; + message.args[0] = (uint32_t) info; + if(!OSSendMessage(&streamSendQueue,&message,OS_MESSAGE_FLAGS_BLOCKING)) { + DEBUG_FUNCTION_LINE("Dropping frame\n"); + delete info; + return false; + }; + } else { + delete info; + } + return true; + } + + virtual ~MJPEGStreamServer(); + + virtual BOOL whileLoop(); + + virtual BOOL acceptConnection(); + + virtual void onConnectionClosed(); + + static MJPEGStreamServer * instance; +}; + +#endif //_MJPEG_STREAM_SERVER_H_ diff --git a/src/function_patcher.cpp b/src/function_patcher.cpp new file mode 100644 index 0000000..b5884a3 --- /dev/null +++ b/src/function_patcher.cpp @@ -0,0 +1,22 @@ +#include +#include +#include +#include +#include +#include "stream_utils.h" +#include "retain_vars.hpp" + +uint32_t count = 0; + +DECL_FUNCTION(void, GX2CopyColorBufferToScanBuffer, const GX2ColorBuffer *colorBuffer, int32_t scan_target) { + if(gAppStatus == WUPS_APP_STATUS_FOREGROUND) { + // Stream every 4th frame of the Gamepad (targetting 20fps) + if(scan_target == 4 && (count++ % 4 == 0) && colorBuffer != NULL ) { + count = 0; + streamVideo((GX2ColorBuffer *)colorBuffer); + } + } + real_GX2CopyColorBufferToScanBuffer(colorBuffer,scan_target); +} + +WUPS_MUST_REPLACE(GX2CopyColorBufferToScanBuffer, WUPS_LOADER_LIBRARY_GX2, GX2CopyColorBufferToScanBuffer); diff --git a/src/main.cpp b/src/main.cpp new file mode 100644 index 0000000..2b7e513 --- /dev/null +++ b/src/main.cpp @@ -0,0 +1,43 @@ +#include +#include +#include "retain_vars.hpp" +#include "EncodingHelper.h" +#include "MJPEGStreamServer.hpp" + +// Mandatory plugin information. +WUPS_PLUGIN_NAME("Gamepad streaming tool. Open http://:8000 on a browser in the same network."); +WUPS_PLUGIN_DESCRIPTION(""); +WUPS_PLUGIN_VERSION("v0.1"); +WUPS_PLUGIN_AUTHOR("Maschell"); +WUPS_PLUGIN_LICENSE("GPL"); + +// Something is using "write"... +WUPS_FS_ACCESS() + +// Gets called once the loader exists. +INITIALIZE_PLUGIN() { + socket_lib_init(); + + log_init(); +} + +// Called whenever an application was started. +ON_APPLICATION_START(my_args) { + socket_lib_init(); + log_init(); + + gAppStatus = WUPS_APP_STATUS_FOREGROUND; + + EncodingHelper::getInstance()->StartAsyncThread(); + MJPEGStreamServer::getInstance(); + + log_init(); +} + +ON_APP_STATUS_CHANGED(status) { + gAppStatus = status; + if(status == WUPS_APP_STATUS_CLOSED) { + EncodingHelper::destroyInstance(); + MJPEGStreamServer::destroyInstance(); + } +} diff --git a/src/retain_vars.cpp b/src/retain_vars.cpp new file mode 100644 index 0000000..28aedc6 --- /dev/null +++ b/src/retain_vars.cpp @@ -0,0 +1,2 @@ +#include "retain_vars.hpp" +wups_loader_app_status_t gAppStatus __attribute__((section(".data"))) = WUPS_APP_STATUS_UNKNOWN; diff --git a/src/retain_vars.hpp b/src/retain_vars.hpp new file mode 100644 index 0000000..cb114c1 --- /dev/null +++ b/src/retain_vars.hpp @@ -0,0 +1,8 @@ +#ifndef _RETAINS_VARS_H_ +#define _RETAINS_VARS_H_ + +#include + +extern wups_loader_app_status_t gAppStatus; + +#endif // _RETAINS_VARS_H_ diff --git a/src/stream_utils.cpp b/src/stream_utils.cpp new file mode 100644 index 0000000..0bcf9ab --- /dev/null +++ b/src/stream_utils.cpp @@ -0,0 +1,171 @@ +#include "stream_utils.h" +#include "EncodingHelper.h" +#include "MJPEGStreamServer.hpp" +#include +#include + +#include +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif +void +GX2ResolveAAColorBuffer(const GX2ColorBuffer * srcColorBuffer, + GX2Surface * dstSurface, + uint32_t dstMip, + uint32_t dstSlice); + +#ifdef __cplusplus +} +#endif + +bool copyBuffer(GX2ColorBuffer * sourceBuffer, GX2ColorBuffer * targetBuffer, uint32_t targetWidth, uint32_t targetHeight) { + // Making sure the buffers are not NULL + if (sourceBuffer != NULL && targetBuffer != NULL) { + targetBuffer->surface.use = (GX2SurfaceUse) (GX2_SURFACE_USE_COLOR_BUFFER | GX2_SURFACE_USE_TEXTURE); + targetBuffer->surface.dim = GX2_SURFACE_DIM_TEXTURE_2D; + targetBuffer->surface.width = targetWidth; + targetBuffer->surface.height = targetHeight; + targetBuffer->surface.depth = 1; + targetBuffer->surface.mipLevels = 1; + targetBuffer->surface.format = GX2_SURFACE_FORMAT_UNORM_R8_G8_B8_A8; + targetBuffer->surface.aa = GX2_AA_MODE1X; + targetBuffer->surface.tileMode = GX2_TILE_MODE_LINEAR_ALIGNED; + targetBuffer->viewMip = 0; + targetBuffer->viewFirstSlice = 0; + targetBuffer->viewNumSlices = 1; + + GX2CalcSurfaceSizeAndAlignment(&targetBuffer->surface); + GX2InitColorBufferRegs(targetBuffer); + + // Let's allocate the memory. + targetBuffer->surface.image = memalign(targetBuffer->surface.alignment,targetBuffer->surface.imageSize); + if(targetBuffer->surface.image == NULL) { + DEBUG_FUNCTION_LINE("failed to allocate memory.\n"); + return false; + } + //DEBUG_FUNCTION_LINE("Allocated image data buffer. data %08X size %08X \n",targetBuffer->surface.image,targetBuffer->surface.imageSize); + + GX2Invalidate(GX2_INVALIDATE_MODE_CPU, targetBuffer->surface.image, targetBuffer->surface.imageSize); + if (sourceBuffer->surface.aa == GX2_AA_MODE1X) { + // If AA is disabled, we can simply use GX2CopySurface. + GX2CopySurface(&sourceBuffer->surface, + sourceBuffer->viewMip, + sourceBuffer->viewFirstSlice, + &targetBuffer->surface, 0, 0); + } else { + // If AA is enabled, we need to resolve the AA buffer. + GX2Surface tempSurface; + tempSurface = sourceBuffer->surface; + tempSurface.aa = GX2_AA_MODE1X; + GX2CalcSurfaceSizeAndAlignment(&tempSurface); + + tempSurface.image = memalign(tempSurface.alignment,tempSurface.imageSize); + if(tempSurface.image == NULL) { + DEBUG_FUNCTION_LINE("failed to allocate data AA.\n"); + if(targetBuffer->surface.image != NULL) { + free(targetBuffer->surface.image); + targetBuffer->surface.image = NULL; + } + return false; + } + GX2ResolveAAColorBuffer(sourceBuffer,&tempSurface, 0, 0); + GX2CopySurface(&tempSurface, 0, 0,&targetBuffer->surface, 0, 0); + + // Sync CPU and GPU + GX2DrawDone(); + + if(tempSurface.image != NULL) { + free(tempSurface.image); + tempSurface.image = NULL; + } + } + return true; + } else { + DEBUG_FUNCTION_LINE("Couldn't copy buffer, pointer was NULL\n"); + return false; + } +} + +uint32_t frame_counter = 0; +uint32_t frame_counter_skipped = 0; + +bool streamVideo(GX2ColorBuffer *srcBuffer) { + if(srcBuffer == NULL) { + return false; + } + + if(!MJPEGStreamServer::isInstanceConnected()) { + return false; + } + + GX2ColorBuffer* colorBuffer = (GX2ColorBuffer*) memalign(0x40,sizeof(GX2ColorBuffer)); + if(colorBuffer == NULL) { + DEBUG_FUNCTION_LINE("Failed to allocate color buffer\n"); + return false; + } + //DEBUG_FUNCTION_LINE("allocated at %08X\n",colorBuffer); + memset(colorBuffer,0,sizeof(GX2ColorBuffer)); + + // keep dimensions + //uint32_t width = srcBuffer->surface.width; + //uint32_t height = srcBuffer->surface.height; + //uint32_t width = 640; + //uint32_t height = 360; + uint32_t width = 428; + uint32_t height = 240; + + bool valid = copyBuffer(srcBuffer,colorBuffer,width,height); + if(!valid) { + DEBUG_FUNCTION_LINE("Copy buffer failed.\n"); + if(colorBuffer->surface.image != NULL) { + free(colorBuffer->surface.image); + colorBuffer->surface.image = NULL; + } + if(colorBuffer != NULL) { + free(colorBuffer); + colorBuffer = NULL; + } + return false; + } + //DEBUG_FUNCTION_LINE("Copy buffer was successful.\n"); + + // Flush out destinations caches + GX2Invalidate(GX2_INVALIDATE_MODE_COLOR_BUFFER, colorBuffer->surface.image,colorBuffer->surface.imageSize); + + // Wait for GPU to finish + GX2DrawDone(); + + DCFlushRange(colorBuffer,sizeof(GX2ColorBuffer)); + DCFlushRange(&(colorBuffer->surface),sizeof(GX2Surface)); + + OSMessage message; + message.message = (void *) 0x1337; + message.args[1] = (uint32_t) colorBuffer; + frame_counter++; + + bool result = true; + + if(!EncodingHelper::addFSQueueMSG(message)) { + frame_counter_skipped++; + + //DEBUG_FUNCTION_LINE("Adding to queue failed, free memory\n"); + if(colorBuffer->surface.image != NULL) { + free(colorBuffer->surface.image); + colorBuffer->surface.image = NULL; + } + if(colorBuffer != NULL) { + free(colorBuffer); + colorBuffer = NULL; + } + result = false; + } + + if(frame_counter % 120 == 0) { + DEBUG_FUNCTION_LINE("Send %d frames, skipped %d. %.2f\n",frame_counter-frame_counter_skipped,frame_counter_skipped,100.f * (frame_counter_skipped*1.0f/frame_counter)); + } + + return result; +} diff --git a/src/stream_utils.h b/src/stream_utils.h new file mode 100644 index 0000000..9aaa673 --- /dev/null +++ b/src/stream_utils.h @@ -0,0 +1,11 @@ +#ifndef _STREAM_UTILS_H_ +#define _STREAM_UTILS_H_ + +#include +#include + +bool copyBuffer(GX2ColorBuffer * sourceBuffer, GX2ColorBuffer * targetBuffer, uint32_t targetWidth, uint32_t targetHeight); + +bool streamVideo(GX2ColorBuffer *srcBuffer); + +#endif