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snes9xgx/source/snes9x/ngcscreenshot.cpp
michniewski 38a1c406d3 added provisions for usbgecko debugging
2009-01-30 02:20:43 +00:00

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/**********************************************************************************
Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
(c) Copyright 1996 - 2002 Gary Henderson (gary.henderson@ntlworld.com),
Jerremy Koot (jkoot@snes9x.com)
(c) Copyright 2002 - 2004 Matthew Kendora
(c) Copyright 2002 - 2005 Peter Bortas (peter@bortas.org)
(c) Copyright 2004 - 2005 Joel Yliluoma (http://iki.fi/bisqwit/)
(c) Copyright 2001 - 2006 John Weidman (jweidman@slip.net)
(c) Copyright 2002 - 2006 funkyass (funkyass@spam.shaw.ca),
Kris Bleakley (codeviolation@hotmail.com)
(c) Copyright 2002 - 2007 Brad Jorsch (anomie@users.sourceforge.net),
Nach (n-a-c-h@users.sourceforge.net),
zones (kasumitokoduck@yahoo.com)
(c) Copyright 2006 - 2007 nitsuja
BS-X C emulator code
(c) Copyright 2005 - 2006 Dreamer Nom,
zones
C4 x86 assembler and some C emulation code
(c) Copyright 2000 - 2003 _Demo_ (_demo_@zsnes.com),
Nach,
zsKnight (zsknight@zsnes.com)
C4 C++ code
(c) Copyright 2003 - 2006 Brad Jorsch,
Nach
DSP-1 emulator code
(c) Copyright 1998 - 2006 _Demo_,
Andreas Naive (andreasnaive@gmail.com)
Gary Henderson,
Ivar (ivar@snes9x.com),
John Weidman,
Kris Bleakley,
Matthew Kendora,
Nach,
neviksti (neviksti@hotmail.com)
DSP-2 emulator code
(c) Copyright 2003 John Weidman,
Kris Bleakley,
Lord Nightmare (lord_nightmare@users.sourceforge.net),
Matthew Kendora,
neviksti
DSP-3 emulator code
(c) Copyright 2003 - 2006 John Weidman,
Kris Bleakley,
Lancer,
z80 gaiden
DSP-4 emulator code
(c) Copyright 2004 - 2006 Dreamer Nom,
John Weidman,
Kris Bleakley,
Nach,
z80 gaiden
OBC1 emulator code
(c) Copyright 2001 - 2004 zsKnight,
pagefault (pagefault@zsnes.com),
Kris Bleakley,
Ported from x86 assembler to C by sanmaiwashi
SPC7110 and RTC C++ emulator code
(c) Copyright 2002 Matthew Kendora with research by
zsKnight,
John Weidman,
Dark Force
S-DD1 C emulator code
(c) Copyright 2003 Brad Jorsch with research by
Andreas Naive,
John Weidman
S-RTC C emulator code
(c) Copyright 2001-2006 byuu,
John Weidman
ST010 C++ emulator code
(c) Copyright 2003 Feather,
John Weidman,
Kris Bleakley,
Matthew Kendora
Super FX x86 assembler emulator code
(c) Copyright 1998 - 2003 _Demo_,
pagefault,
zsKnight,
Super FX C emulator code
(c) Copyright 1997 - 1999 Ivar,
Gary Henderson,
John Weidman
Sound DSP emulator code is derived from SNEeSe and OpenSPC:
(c) Copyright 1998 - 2003 Brad Martin
(c) Copyright 1998 - 2006 Charles Bilyue'
SH assembler code partly based on x86 assembler code
(c) Copyright 2002 - 2004 Marcus Comstedt (marcus@mc.pp.se)
2xSaI filter
(c) Copyright 1999 - 2001 Derek Liauw Kie Fa
HQ2x, HQ3x, HQ4x filters
(c) Copyright 2003 Maxim Stepin (maxim@hiend3d.com)
Win32 GUI code
(c) Copyright 2003 - 2006 blip,
funkyass,
Matthew Kendora,
Nach,
nitsuja
Mac OS GUI code
(c) Copyright 1998 - 2001 John Stiles
(c) Copyright 2001 - 2007 zones
Specific ports contains the works of other authors. See headers in
individual files.
Snes9x homepage: http://www.snes9x.com
Permission to use, copy, modify and/or distribute Snes9x in both binary
and source form, for non-commercial purposes, is hereby granted without
fee, providing that this license information and copyright notice appear
with all copies and any derived work.
This software is provided 'as-is', without any express or implied
warranty. In no event shall the authors be held liable for any damages
arising from the use of this software or it's derivatives.
Snes9x is freeware for PERSONAL USE only. Commercial users should
seek permission of the copyright holders first. Commercial use includes,
but is not limited to, charging money for Snes9x or software derived from
Snes9x, including Snes9x or derivatives in commercial game bundles, and/or
using Snes9x as a promotion for your commercial product.
The copyright holders request that bug fixes and improvements to the code
should be forwarded to them so everyone can benefit from the modifications
in future versions.
Super NES and Super Nintendo Entertainment System are trademarks of
Nintendo Co., Limited and its subsidiary companies.
**********************************************************************************/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#ifndef __WIN32__
#include <unistd.h>
#else
#include <direct.h>
#endif
#include <string.h>
#include <fcntl.h>
#include <pngu/pngu.h>
#include <png.h>
#include "snes9xGX.h"
#include "fileop.h"
#include "filesel.h"
#include "snes9x.h"
#include "memmap.h"
#include "display.h"
#include "gfx.h"
#include "ppu.h"
#include "screenshot.h"
#define ShowFailure() S9xSetInfoString("Failed to take screenshot.")
#if 0
//
// Need png.c from libpng to access the follow functions (and the code in s9xdoscreenshot)
//
// Constants
#define PNGU_SOURCE_BUFFER 1
#define PNGU_SOURCE_DEVICE 2
//extern struct _IMGCTX;
extern "C" {
// Prototypes of helper functions
int pngu_info (IMGCTX ctx);
//int pngu_decode (IMGCTX ctx, PNGU_u32 width, PNGU_u32 height, PNGU_u32 stripAlpha);
void pngu_free_info (IMGCTX ctx);
//void pngu_read_data_from_buffer (png_structp png_ptr, png_bytep data, png_size_t length);
void pngu_write_data_to_buffer (png_structp png_ptr, png_bytep data, png_size_t length);
void pngu_flush_data_to_buffer (png_structp png_ptr);
//int pngu_clamp (int value, int min, int max);
}
#endif
bool8 S9xDoScreenshot(int width, int height)
{
{
static char str [64];
sprintf(str, "Saving screenshot");
S9xSetInfoString(str);
return true;
}
#if 0 // disable screenshots for now. Code is not quite right.
IMGCTX ctx;
png_color_8 sig_bit;
uint16 *screen = GFX.Screen; // source
int method = GCSettings.SaveMethod;
// Erase from the context any info
pngu_free_info (ctx);
ctx->propRead = 0;
// Set some defaults
ctx->source = PNGU_SOURCE_DEVICE; // or PNGU_SOURCE_BUFFER;
if ( !MakeFilePath(ctx->filename, FILE_SCREEN, method) )
return FALSE;
// init destination file
if (ctx->source == PNGU_SOURCE_BUFFER);
else if (ctx->source == PNGU_SOURCE_DEVICE)
{
// Open file
if (!(ctx->fd = fopen (ctx->filename, "wb")))
return PNGU_CANT_OPEN_FILE;
}
else
return PNGU_NO_FILE_SELECTED;
// Allocation of libpng structs
ctx->png_ptr = png_create_write_struct (PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
if (!(ctx->png_ptr))
{
if (ctx->source == PNGU_SOURCE_DEVICE)
fclose (ctx->fd);
return PNGU_LIB_ERROR;
}
ctx->info_ptr = png_create_info_struct (ctx->png_ptr);
if (!(ctx->info_ptr))
{
png_destroy_write_struct (&(ctx->png_ptr), (png_infopp)NULL);
if (ctx->source == PNGU_SOURCE_DEVICE)
fclose (ctx->fd);
return PNGU_LIB_ERROR;
}
if (ctx->source == PNGU_SOURCE_BUFFER)
{
// Installation of our custom data writer function
ctx->cursor = 0;
png_set_write_fn (ctx->png_ptr, ctx, pngu_write_data_to_buffer, pngu_flush_data_to_buffer);
}
else if (ctx->source == PNGU_SOURCE_DEVICE)
{
// Default data writer uses function fwrite, so it needs to use our FILE*
png_init_io (ctx->png_ptr, ctx->fd);
}
// Setup output file properties
png_set_IHDR (ctx->png_ptr, ctx->info_ptr, width, height, 8, PNG_COLOR_TYPE_RGB,
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
// 5 bits per color
sig_bit.red=5;
sig_bit.green=5;
sig_bit.blue=5;
png_set_sBIT(ctx->png_ptr, ctx->info_ptr, &sig_bit);
png_set_shift(ctx->png_ptr, &sig_bit);
png_write_info(ctx->png_ptr, ctx->info_ptr);
png_set_packing(ctx->png_ptr);
*(ctx->row_pointers) = new png_byte [png_get_rowbytes(ctx->png_ptr, ctx->info_ptr)]; // alloc mem
for(int y=0; y<height; y++, screen+=GFX.RealPPL)
{
png_byte *rowpix = *(ctx->row_pointers);
for(int x=0; x<width; x++)
{
uint32 r, g, b;
DECOMPOSE_PIXEL(screen[x], r, g, b);
*(rowpix++) = r;
*(rowpix++) = g;
*(rowpix++) = b;
}
png_write_row(ctx->png_ptr, *(ctx->row_pointers));
}
delete [] ctx->row_pointers;
// Tell libpng we have no more data to write
png_write_end (ctx->png_ptr, (png_infop) NULL);
// Free resources
free (ctx->img_data);
free (ctx->row_pointers);
png_destroy_write_struct (&(ctx->png_ptr), &(ctx->info_ptr));
if (ctx->source == PNGU_SOURCE_DEVICE)
fclose (ctx->fd);
//fprintf(stderr, "%s saved.\n", fname);
{
static char str [64];
sprintf(str, "Saved screenshot");
S9xSetInfoString(str);
}
return TRUE;
#else
Settings.TakeScreenshot=FALSE;
fprintf(stderr, "Screenshot support not available (libpng was not found at build time)\n");
return FALSE;
#endif
}
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