mirror of
https://github.com/ekeeke/Genesis-Plus-GX.git
synced 2024-12-29 12:41:48 +01:00
28775cc3aa
---------- * added Mega CD / Sega CD hardware emulation (incl. Sub 68K, CDD, CDC, PCM, GFX rotation/scaling, etc) * added .ISO & .BIN CD image file support * added 512K backup cartridge RAM support * added savestate support for CD games NOTES: ~~~~~~ * to play CD games, original BIOS ROM files are required in /genplus/bios/ directory: unzip & rename them to bios_CD_U.bin, bios_CD_E.bin, bios_CD_J.bin * CD audio tracks (CD-DA) are not supported (yet) [Core/CPU] ---------- * modified 68k core for Mega CD / Sega CD support [Core/VDP] --------------- * improved DMA accuracy * added support for 8-bit VRAM writes with undocumented code value (verified on real hardware by Nemesis) [Gamecube/Wii] --------------- * modified Master System & Game Gear "BIOS" support (files should be named bios_U.sms, bios_J.sms, bios_E.sms & bios.gg and copied to /genplus/bios directory). * replaced "Hard Reset" button by a Soft Reset for systems having a Reset button (Mega Drive / Genesis & Master System) * State & SRAM files are now only compressed when saving to Gamecube Memory Cards * various fixes & cleanup. [Core/SCD] ---------- * added Mega CD / Sega CD hardware emulation (incl. Sub 68K, CDD, CDC, PCM, GFX rotation/scaling, etc) * added .ISO & .BIN CD image file support * added 512K backup cartridge RAM support * added savestate support for CD games NOTES: ~~~~~~ * to play CD games, original BIOS ROM files are required in /genplus/bios/ directory: unzip & rename them to bios_CD_U.bin, bios_CD_E.bin, bios_CD_J.bin * CD audio tracks (CD-DA) are not supported (yet) [Core/CPU] ---------- * modified 68k core for Mega CD / Sega CD support [Core/VDP] --------------- * improved DMA accuracy * added support for 8-bit VRAM writes with undocumented code value (verified on real hardware by Nemesis) [Gamecube/Wii] --------------- * modified Master System & Game Gear "BIOS" support (files should be named bios_U.sms, bios_J.sms, bios_E.sms & bios.gg and copied to /genplus/bios directory). * replaced "Hard Reset" button by a Soft Reset for systems having a Reset button (Mega Drive / Genesis & Master System) * State & SRAM files are now only compressed when saving to Gamecube Memory Cards * various fixes & cleanup.
1876 lines
53 KiB
C
1876 lines
53 KiB
C
/****************************************************************************
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* gx_video.c
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*
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* Genesis Plus GX video & rendering support
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*
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* Copyright Eke-Eke (2007-2012), based on original work from Softdev (2006)
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*
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* Redistribution and use of this code or any derivative works are permitted
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* provided that the following conditions are met:
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*
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* - Redistributions may not be sold, nor may they be used in a commercial
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* product or activity.
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*
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* - Redistributions that are modified from the original source must include the
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* complete source code, including the source code for all components used by a
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* binary built from the modified sources. However, as a special exception, the
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* source code distributed need not include anything that is normally distributed
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* (in either source or binary form) with the major components (compiler, kernel,
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* and so on) of the operating system on which the executable runs, unless that
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* component itself accompanies the executable.
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*
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* - Redistributions must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************************/
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#include "shared.h"
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#include "font.h"
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#include "md_ntsc.h"
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#include "sms_ntsc.h"
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#include "gx_input.h"
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#include <png.h>
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#define TEX_WIDTH 720
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#define TEX_HEIGHT 576
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#define TEX_SIZE (TEX_WIDTH * TEX_HEIGHT * 2)
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#define DEFAULT_FIFO_SIZE 256 * 1024
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#define HASPECT 320
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#define VASPECT 240
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/* libpng wrapper */
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typedef struct
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{
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u8 *buffer;
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u32 offset;
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} png_image;
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extern const u8 Crosshair_p1_png[];
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extern const u8 Crosshair_p2_png[];
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/*** VI ***/
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GXRModeObj *vmode; /* Default Video Mode */
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u8 *texturemem; /* Texture Data */
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u8 *screenshot; /* Texture Data */
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/*** 50/60hz flag ***/
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u32 gc_pal;
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/*** NTSC Filters ***/
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sms_ntsc_t *sms_ntsc;
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md_ntsc_t *md_ntsc;
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/*** GX FIFO ***/
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static u8 gp_fifo[DEFAULT_FIFO_SIZE] ATTRIBUTE_ALIGN (32);
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/*** GX Textures ***/
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static u32 vwidth,vheight;
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static gx_texture *crosshair[2];
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/*** Framebuffers ***/
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static u32 *xfb[2];
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static u32 whichfb = 0;
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/***************************************************************************************/
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/* Emulation video modes */
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/***************************************************************************************/
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static GXRModeObj *rmode;
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/* 288 lines progressive (PAL 50Hz) */
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static GXRModeObj TV50hz_288p =
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{
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VI_TVMODE_PAL_DS, // viDisplayMode
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640, // fbWidth
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VI_MAX_HEIGHT_PAL/2, // efbHeight
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VI_MAX_HEIGHT_PAL/2, // xfbHeight
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0, // viXOrigin
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0, // viYOrigin
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VI_MAX_WIDTH_PAL, // viWidth
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VI_MAX_HEIGHT_PAL, // viHeight
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VI_XFBMODE_SF, // xFBmode
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GX_FALSE, // field_rendering
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GX_FALSE, // aa
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// sample points arranged in increasing Y order
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{
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{6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each
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{6,6},{6,6},{6,6}, // pix 1
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{6,6},{6,6},{6,6}, // pix 2
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{6,6},{6,6},{6,6} // pix 3
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},
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// vertical filter[7], 1/64 units, 6 bits each
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{
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0, // line n-1
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0, // line n-1
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21, // line n
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22, // line n
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21, // line n
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0, // line n+1
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0 // line n+1
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}
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};
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/* 288 lines interlaced (PAL 50Hz) */
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static GXRModeObj TV50hz_288i =
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{
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VI_TVMODE_PAL_INT, // viDisplayMode
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640, // fbWidth
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VI_MAX_HEIGHT_PAL/2, // efbHeight
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VI_MAX_HEIGHT_PAL/2, // xfbHeight
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0, // viXOrigin
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0, // viYOrigin
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VI_MAX_WIDTH_PAL, // viWidth
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VI_MAX_HEIGHT_PAL, // viHeight
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VI_XFBMODE_SF, // xFBmode
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GX_TRUE, // field_rendering
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GX_FALSE, // aa
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// sample points arranged in increasing Y order
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{
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{6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each
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{6,6},{6,6},{6,6}, // pix 1
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{6,6},{6,6},{6,6}, // pix 2
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{6,6},{6,6},{6,6} // pix 3
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},
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// vertical filter[7], 1/64 units, 6 bits each
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{
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0, // line n-1
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0, // line n-1
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21, // line n
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22, // line n
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21, // line n
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0, // line n+1
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0 // line n+1
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}
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};
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/* 576 lines interlaced (PAL 50Hz, scaled) */
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static GXRModeObj TV50hz_576i =
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{
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VI_TVMODE_PAL_INT, // viDisplayMode
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640, // fbWidth
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480, // efbHeight
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VI_MAX_HEIGHT_PAL, // xfbHeight
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0, // viXOrigin
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0, // viYOrigin
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VI_MAX_WIDTH_PAL, // viWidth
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VI_MAX_HEIGHT_PAL, // viHeight
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VI_XFBMODE_DF, // xFBmode
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GX_FALSE, // field_rendering
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GX_FALSE, // aa
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// sample points arranged in increasing Y order
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{
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{6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each
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{6,6},{6,6},{6,6}, // pix 1
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{6,6},{6,6},{6,6}, // pix 2
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{6,6},{6,6},{6,6} // pix 3
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},
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// vertical filter[7], 1/64 units, 6 bits each
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{
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8, // line n-1
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8, // line n-1
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10, // line n
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12, // line n
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10, // line n
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8, // line n+1
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8 // line n+1
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}
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};
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/* 240 lines progressive (NTSC or PAL 60Hz) */
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static GXRModeObj TV60hz_240p =
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{
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VI_TVMODE_EURGB60_DS, // viDisplayMode
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640, // fbWidth
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VI_MAX_HEIGHT_NTSC/2, // efbHeight
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VI_MAX_HEIGHT_NTSC/2, // xfbHeight
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0, // viXOrigin
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0, // viYOrigin
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VI_MAX_WIDTH_NTSC, // viWidth
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VI_MAX_HEIGHT_NTSC, // viHeight
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VI_XFBMODE_SF, // xFBmode
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GX_FALSE, // field_rendering
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GX_FALSE, // aa
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// sample points arranged in increasing Y order
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{
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{6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each
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{6,6},{6,6},{6,6}, // pix 1
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{6,6},{6,6},{6,6}, // pix 2
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{6,6},{6,6},{6,6} // pix 3
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},
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// vertical filter[7], 1/64 units, 6 bits each
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{
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0, // line n-1
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0, // line n-1
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21, // line n
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22, // line n
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21, // line n
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0, // line n+1
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0 // line n+1
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}
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};
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/* 240 lines interlaced (NTSC or PAL 60Hz) */
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static GXRModeObj TV60hz_240i =
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{
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VI_TVMODE_EURGB60_INT, // viDisplayMode
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640, // fbWidth
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VI_MAX_HEIGHT_NTSC/2, // efbHeight
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VI_MAX_HEIGHT_NTSC/2, // xfbHeight
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0, // viXOrigin
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0, // viYOrigin
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VI_MAX_WIDTH_NTSC, // viWidth
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VI_MAX_HEIGHT_NTSC, // viHeight
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VI_XFBMODE_SF, // xFBmode
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GX_TRUE, // field_rendering
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GX_FALSE, // aa
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// sample points arranged in increasing Y order
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{
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{3,2},{9,6},{3,10}, // pix 0, 3 sample points, 1/12 units, 4 bits each
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{3,2},{9,6},{3,10}, // pix 1
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{9,2},{3,6},{9,10}, // pix 2
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{9,2},{3,6},{9,10} // pix 3
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},
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// vertical filter[7], 1/64 units, 6 bits each
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{
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0, // line n-1
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0, // line n-1
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21, // line n
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22, // line n
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21, // line n
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0, // line n+1
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0 // line n+1
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}
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};
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/* 480 lines interlaced (NTSC or PAL 60Hz) */
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static GXRModeObj TV60hz_480i =
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{
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VI_TVMODE_EURGB60_INT,// viDisplayMode
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640, // fbWidth
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VI_MAX_HEIGHT_NTSC, // efbHeight
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VI_MAX_HEIGHT_NTSC, // xfbHeight
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0, // viXOrigin
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0, // viYOrigin
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VI_MAX_WIDTH_NTSC, // viWidth
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VI_MAX_HEIGHT_NTSC, // viHeight
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VI_XFBMODE_DF, // xFBmode
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GX_FALSE, // field_rendering
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GX_FALSE, // aa
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// sample points arranged in increasing Y order
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{
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{6,6},{6,6},{6,6}, // pix 0, 3 sample points, 1/12 units, 4 bits each
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{6,6},{6,6},{6,6}, // pix 1
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{6,6},{6,6},{6,6}, // pix 2
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{6,6},{6,6},{6,6} // pix 3
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},
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// vertical filter[7], 1/64 units, 6 bits each
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{
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8, // line n-1
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8, // line n-1
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10, // line n
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12, // line n
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10, // line n
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8, // line n+1
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8 // line n+1
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}
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};
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/* TV modes pointer table */
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static GXRModeObj *tvmodes[6] =
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{
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/* 60hz modes */
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&TV60hz_240p,
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&TV60hz_240i,
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&TV60hz_480i,
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/* 50Hz modes */
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&TV50hz_288p,
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&TV50hz_288i,
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&TV50hz_576i
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};
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/***************************************************************************************/
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/* GX rendering engine */
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/***************************************************************************************/
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typedef struct tagcamera
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{
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guVector pos;
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guVector up;
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guVector view;
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} camera;
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/*** Square Matrix
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This structure controls the size of the image on the screen.
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Think of the output as a -80 x 80 by -60 x 60 graph.
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***/
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static s16 square[] ATTRIBUTE_ALIGN (32) =
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{
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/*
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* X, Y, Z
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* Values set are for roughly 4:3 aspect
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*/
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-HASPECT, VASPECT, 0, // 0
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HASPECT, VASPECT, 0, // 1
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HASPECT, -VASPECT, 0, // 2
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-HASPECT, -VASPECT, 0, // 3
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};
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static camera cam = {
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{0.0F, 0.0F, -100.0F},
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{0.0F, -1.0F, 0.0F},
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{0.0F, 0.0F, 0.0F}
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};
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/* VSYNC callback */
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static void vi_callback(u32 cnt)
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{
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#ifdef LOG_TIMING
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u64 current = gettime();
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if (prevtime)
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{
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delta_time[frame_cnt] = diff_nsec(prevtime, current);
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frame_cnt = (frame_cnt + 1) % LOGSIZE;
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}
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prevtime = current;
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#endif
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frameticker ++;
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}
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/* Vertex Rendering */
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static inline void draw_vert(u8 pos, f32 s, f32 t)
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{
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GX_Position1x8(pos);
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GX_TexCoord2f32(s, t);
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}
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/* textured quad rendering */
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static inline void draw_square(void)
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{
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GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
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draw_vert(3, 0.0, 0.0);
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draw_vert(2, 1.0, 0.0);
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draw_vert(1, 1.0, 1.0);
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draw_vert(0, 0.0, 1.0);
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GX_End();
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}
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/* Initialize GX */
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static void gxStart(void)
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{
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/*** Clear out FIFO area ***/
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memset(&gp_fifo, 0, DEFAULT_FIFO_SIZE);
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/*** GX default ***/
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GX_Init(&gp_fifo, DEFAULT_FIFO_SIZE);
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GX_SetPixelFmt(GX_PF_RGB8_Z24, GX_ZC_LINEAR);
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GX_SetCullMode(GX_CULL_NONE);
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GX_SetClipMode(GX_CLIP_DISABLE);
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GX_SetDispCopyGamma(GX_GM_1_0);
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GX_SetZMode(GX_FALSE, GX_ALWAYS, GX_FALSE);
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GX_SetColorUpdate(GX_TRUE);
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GX_SetAlphaUpdate(GX_FALSE);
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/* Modelview */
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Mtx view;
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memset (&view, 0, sizeof (Mtx));
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guLookAt(view, &cam.pos, &cam.up, &cam.view);
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GX_LoadPosMtxImm(view, GX_PNMTX0);
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GX_Flush();
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}
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/* Reset GX rendering */
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static void gxResetRendering(u8 type)
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{
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GX_ClearVtxDesc();
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if (type)
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{
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/* uses direct positionning, alpha blending & color channel (menu rendering) */
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GX_SetBlendMode(GX_BM_BLEND,GX_BL_SRCALPHA,GX_BL_INVSRCALPHA,GX_LO_CLEAR);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XY, GX_S16, 0);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
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GX_SetVtxDesc(GX_VA_POS, GX_DIRECT);
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GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
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GX_SetVtxDesc (GX_VA_CLR0, GX_DIRECT);
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/*
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Color.out = Color.rasterized*Color.texture
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Alpha.out = Alpha.rasterized*Alpha.texture
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*/
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GX_SetTevOp (GX_TEVSTAGE0, GX_MODULATE);
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GX_SetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR0A0);
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GX_SetNumTexGens(1);
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GX_SetNumChans(1);
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}
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else
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{
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/* uses array positionning, no alpha blending, no color channel (video emulation) */
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GX_SetBlendMode(GX_BM_NONE,GX_BL_SRCALPHA,GX_BL_INVSRCALPHA,GX_LO_CLEAR);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XYZ, GX_S16, 0);
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GX_SetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_F32, 0);
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GX_SetVtxDesc(GX_VA_POS, GX_INDEX8);
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GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
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GX_SetArray(GX_VA_POS, square, 3 * sizeof (s16));
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/*
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Color.out = Color.texture
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Alpha.out = Alpha.texture
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*/
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GX_SetTevOp (GX_TEVSTAGE0, GX_REPLACE);
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GX_SetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLORNULL);
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GX_SetNumTexGens(1);
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GX_SetNumChans(0);
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}
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|
|
GX_Flush();
|
|
}
|
|
|
|
/* Reset GX rendering mode */
|
|
static void gxResetMode(GXRModeObj *tvmode)
|
|
{
|
|
Mtx44 p;
|
|
f32 yScale = GX_GetYScaleFactor(tvmode->efbHeight, tvmode->xfbHeight);
|
|
u16 xfbHeight = GX_SetDispCopyYScale(yScale);
|
|
u16 xfbWidth = VIDEO_PadFramebufferWidth(tvmode->fbWidth);
|
|
|
|
GX_SetCopyClear((GXColor)BLACK,0x00ffffff);
|
|
GX_SetViewport(0.0F, 0.0F, tvmode->fbWidth, tvmode->efbHeight, 0.0F, 1.0F);
|
|
GX_SetScissor(0, 0, tvmode->fbWidth, tvmode->efbHeight);
|
|
GX_SetDispCopySrc(0, 0, tvmode->fbWidth, tvmode->efbHeight);
|
|
GX_SetDispCopyDst(xfbWidth, xfbHeight);
|
|
GX_SetCopyFilter(tvmode->aa, tvmode->sample_pattern, (tvmode->xfbMode == VI_XFBMODE_SF) ? GX_FALSE : GX_TRUE, tvmode->vfilter);
|
|
GX_SetFieldMode(tvmode->field_rendering, ((tvmode->viHeight == 2 * tvmode->xfbHeight) ? GX_ENABLE : GX_DISABLE));
|
|
guOrtho(p, tvmode->efbHeight/2, -(tvmode->efbHeight/2), -(tvmode->fbWidth/2), tvmode->fbWidth/2, 100, 1000);
|
|
GX_LoadProjectionMtx(p, GX_ORTHOGRAPHIC);
|
|
GX_Flush();
|
|
}
|
|
|
|
/* Update Aspect Ratio */
|
|
static void gxSetAspectRatio(int *xscale, int *yscale)
|
|
{
|
|
/* Vertical Scaling is disabled by default */
|
|
*yscale = (bitmap.viewport.h + (2 * bitmap.viewport.y)) / 2;
|
|
|
|
/* Original aspect ratio */
|
|
if (config.aspect)
|
|
{
|
|
/* Adjust vertical scaling when input & output video heights are different */
|
|
if (vdp_pal && (!gc_pal || config.render))
|
|
{
|
|
*yscale = *yscale * VI_MAX_HEIGHT_NTSC / VI_MAX_HEIGHT_PAL;
|
|
}
|
|
else if (!vdp_pal && gc_pal && !config.render)
|
|
{
|
|
*yscale = *yscale * VI_MAX_HEIGHT_PAL / VI_MAX_HEIGHT_NTSC;
|
|
}
|
|
|
|
/* Horizontal Scaling */
|
|
/* Wii/NGC pixel clock = 13.5 Mhz */
|
|
/* "H32" pixel clock = Master Clock / 10 = 5.3693175 Mhz (NTSC) or 5.3203424 (PAL) */
|
|
/* "H40" pixel clock = Master Clock / 8 = 6,711646875 Mhz (NTSC) or 6,650428 Mhz (PAL) */
|
|
if (config.overscan & 2)
|
|
{
|
|
/* Horizontal borders are emulated */
|
|
if (reg[12] & 1)
|
|
{
|
|
/* 348 "H40" pixels = 348 * Wii pixel clock / "H40" pixel clock = approx. 700 (NTSC) or 707 (PAL) Wii/NGC pixels */
|
|
*xscale = (system_clock == MCLOCK_NTSC) ? 350 : 354;
|
|
}
|
|
else
|
|
{
|
|
/* 284 "H32" pixels = 284 * Wii pixel clock / "H40" pixel clock = approx. 714 (NTSC) or 721 (PAL) Wii/NGC pixels */
|
|
*xscale = (system_clock == MCLOCK_NTSC) ? 357 : 361;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Horizontal borders are simulated */
|
|
if (system_hw == SYSTEM_GG)
|
|
{
|
|
/* 160 "H32" pixels = 160 * Wii pixel clock / "H32" pixel clock = approx. 403 Wii/NGC pixels (NTSC only) */
|
|
*xscale = 202;
|
|
}
|
|
else
|
|
{
|
|
/* 320 "H40" pixels = 256 "H32" pixels = 256 * Wii pixel clock / "H32" pixel clock = approx. 644 (NTSC) or 650 (PAL) Wii/NGC pixels */
|
|
*xscale = (system_clock == MCLOCK_NTSC) ? 322 : 325;
|
|
}
|
|
}
|
|
|
|
/* Aspect correction for widescreen TV */
|
|
if (config.aspect & 2)
|
|
{
|
|
/* Keep 4:3 aspect ratio on 16:9 output */
|
|
*xscale = (*xscale * 3) / 4;
|
|
}
|
|
}
|
|
|
|
/* Manual aspect ratio */
|
|
else
|
|
{
|
|
/* By default, disable horizontal scaling */
|
|
*xscale = bitmap.viewport.w + (2 * bitmap.viewport.x);
|
|
|
|
/* Keep original aspect ratio in H32 modes */
|
|
if (!(reg[12] & 1))
|
|
{
|
|
*xscale = (*xscale * 320) / 256;
|
|
}
|
|
|
|
/* Game Gear specific: if borders are disabled, upscale to fullscreen */
|
|
if (system_hw == SYSTEM_GG)
|
|
{
|
|
if (!(config.overscan & 1))
|
|
{
|
|
/* Active area height = approx. 224 non-interlaced lines (60hz) */
|
|
*yscale = 112;
|
|
}
|
|
|
|
if (!(config.overscan & 2))
|
|
{
|
|
/* Active area width = approx. 640 pixels */
|
|
*xscale = 320;
|
|
}
|
|
}
|
|
|
|
/* By default, keep NTSC aspect ratio */
|
|
if (gc_pal && !config.render)
|
|
{
|
|
/* Upscale PAL output */
|
|
*yscale = *yscale * VI_MAX_HEIGHT_PAL / VI_MAX_HEIGHT_NTSC;
|
|
}
|
|
|
|
/* Add user scaling */
|
|
*xscale += config.xscale;
|
|
*yscale += config.yscale;
|
|
}
|
|
}
|
|
|
|
/* Reset GX/VI hardware scaler */
|
|
static void gxResetScaler(u32 width)
|
|
{
|
|
int xscale = 0;
|
|
int yscale = 0;
|
|
int offset = 0;
|
|
|
|
/* retrieve screen aspect ratio */
|
|
gxSetAspectRatio(&xscale, &yscale);
|
|
|
|
/* default EFB width */
|
|
rmode->fbWidth = 640;
|
|
|
|
/* no filtering, disable GX horizontal scaling */
|
|
if (!config.bilinear && !config.ntsc)
|
|
{
|
|
if ((width <= 320) && (width <= xscale))
|
|
rmode->fbWidth = width * 2;
|
|
else if (width <= 640)
|
|
rmode->fbWidth = width;
|
|
}
|
|
|
|
/* configure VI width */
|
|
if ((xscale * 2) > rmode->fbWidth)
|
|
{
|
|
/* max width = 720 pixels */
|
|
if (xscale > 360)
|
|
{
|
|
/* save offset for later */
|
|
offset = ((xscale - 360) * rmode->fbWidth) / rmode->viWidth;
|
|
|
|
/* maximal width */
|
|
xscale = 360;
|
|
}
|
|
|
|
/* enable VI upscaling */
|
|
rmode->viWidth = xscale * 2;
|
|
rmode->viXOrigin = (720 - (xscale * 2)) / 2;
|
|
|
|
/* default GX horizontal scaling */
|
|
xscale = (rmode->fbWidth / 2);
|
|
|
|
/* handle additional upscaling */
|
|
if (offset)
|
|
{
|
|
/* no filtering, reduce EFB width to increase VI upscaling */
|
|
if (!config.bilinear && !config.ntsc)
|
|
rmode->fbWidth -= (offset * 2);
|
|
|
|
/* increase GX horizontal scaling */
|
|
else
|
|
xscale += offset;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* VI horizontal scaling is disabled */
|
|
rmode->viWidth = rmode->fbWidth;
|
|
rmode->viXOrigin = (720 - rmode->fbWidth) / 2;
|
|
}
|
|
|
|
/* Adjust screen position */
|
|
int xshift = (config.xshift * rmode->fbWidth) / rmode->viWidth;
|
|
int yshift = (config.yshift * rmode->efbHeight) / rmode->viHeight;
|
|
|
|
/* Double Resolution modes (480i/576i/480p) */
|
|
if (config.render)
|
|
{
|
|
yscale = yscale * 2;
|
|
}
|
|
|
|
/* Set GX scaler (Vertex Position matrix) */
|
|
square[6] = square[3] = xshift + xscale;
|
|
square[0] = square[9] = xshift - xscale;
|
|
square[4] = square[1] = yshift + yscale;
|
|
square[7] = square[10] = yshift - yscale;
|
|
DCFlushRange(square, 32);
|
|
GX_InvVtxCache();
|
|
}
|
|
|
|
static void gxDrawCrosshair(gx_texture *texture, int x, int y)
|
|
{
|
|
if (texture->data)
|
|
{
|
|
/* load texture object */
|
|
GXTexObj texObj;
|
|
GX_InitTexObj(&texObj, texture->data, texture->width, texture->height, GX_TF_RGBA8, GX_CLAMP, GX_CLAMP, GX_FALSE);
|
|
GX_InitTexObjLOD(&texObj,GX_LINEAR,GX_LIN_MIP_LIN,0.0,10.0,0.0,GX_FALSE,GX_TRUE,GX_ANISO_4);
|
|
GX_LoadTexObj(&texObj, GX_TEXMAP0);
|
|
GX_InvalidateTexAll();
|
|
|
|
/* reset GX rendering */
|
|
gxResetRendering(1);
|
|
|
|
/* adjust texture dimensions to XFB->VI scaling */
|
|
int w = (texture->width * rmode->fbWidth) / (rmode->viWidth);
|
|
int h = (texture->height * rmode->efbHeight) / (rmode->viHeight);
|
|
|
|
/* adjust texture coordinates to EFB */
|
|
int fb_w = square[3] - square[9];
|
|
int fb_h = square[4] - square[10];
|
|
x = (((x + bitmap.viewport.x) * fb_w) / (bitmap.viewport.w + 2*bitmap.viewport.x)) - w/2 - (fb_w/2);
|
|
y = (((y + bitmap.viewport.y) * fb_h) / (bitmap.viewport.h + 2*bitmap.viewport.y)) - h/2 - (fb_h/2);
|
|
|
|
/* Draw textured quad */
|
|
GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
|
|
GX_Position2s16(x,y+h);
|
|
GX_Color4u8(0xff,0xff,0xff,0xff);
|
|
GX_TexCoord2f32(0.0, 1.0);
|
|
GX_Position2s16(x+w,y+h);
|
|
GX_Color4u8(0xff,0xff,0xff,0xff);
|
|
GX_TexCoord2f32(1.0, 1.0);
|
|
GX_Position2s16(x+w,y);
|
|
GX_Color4u8(0xff,0xff,0xff,0xff);
|
|
GX_TexCoord2f32(1.0, 0.0);
|
|
GX_Position2s16(x,y);
|
|
GX_Color4u8(0xff,0xff,0xff,0xff);
|
|
GX_TexCoord2f32(0.0, 0.0);
|
|
GX_End();
|
|
|
|
/* restore GX rendering */
|
|
gxResetRendering(0);
|
|
|
|
/* restore texture object */
|
|
GXTexObj texobj;
|
|
GX_InitTexObj(&texobj, texturemem, vwidth, vheight, GX_TF_RGB565, GX_CLAMP, GX_CLAMP, GX_FALSE);
|
|
if (!config.bilinear) GX_InitTexObjLOD(&texobj,GX_NEAR,GX_NEAR_MIP_NEAR,0.0,10.0,0.0,GX_FALSE,GX_FALSE,GX_ANISO_1);
|
|
GX_LoadTexObj(&texobj, GX_TEXMAP0);
|
|
GX_InvalidateTexAll();
|
|
}
|
|
}
|
|
|
|
|
|
void gxDrawRectangle(s32 x, s32 y, s32 w, s32 h, u8 alpha, GXColor color)
|
|
{
|
|
/* GX only use Color channel for rendering */
|
|
GX_SetTevOp (GX_TEVSTAGE0, GX_PASSCLR);
|
|
GX_SetVtxDesc (GX_VA_TEX0, GX_NONE);
|
|
GX_Flush();
|
|
|
|
/* vertex coordinate */
|
|
x -= (vmode->fbWidth/2);
|
|
y -= (vmode->efbHeight/2);
|
|
|
|
/* draw colored quad */
|
|
GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
|
|
GX_Position2s16(x,y+h);
|
|
GX_Color4u8(color.r,color.g,color.b,alpha);
|
|
GX_Position2s16(x+w,y+h);
|
|
GX_Color4u8(color.r,color.g,color.b,alpha);
|
|
GX_Position2s16(x+w,y);
|
|
GX_Color4u8(color.r,color.g,color.b,alpha);
|
|
GX_Position2s16(x,y);
|
|
GX_Color4u8(color.r,color.g,color.b,alpha);
|
|
GX_End();
|
|
GX_DrawDone();
|
|
|
|
/* restore GX rendering */
|
|
GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
|
|
GX_SetTevOp (GX_TEVSTAGE0, GX_MODULATE);
|
|
GX_Flush();
|
|
}
|
|
|
|
void gxDrawTexture(gx_texture *texture, s32 x, s32 y, s32 w, s32 h, u8 alpha)
|
|
{
|
|
if (!texture) return;
|
|
if (texture->data)
|
|
{
|
|
/* load texture object */
|
|
GXTexObj texObj;
|
|
GX_InitTexObj(&texObj, texture->data, texture->width, texture->height, GX_TF_RGBA8, GX_CLAMP, GX_CLAMP, GX_FALSE);
|
|
GX_InitTexObjLOD(&texObj,GX_LINEAR,GX_LIN_MIP_LIN,0.0,10.0,0.0,GX_FALSE,GX_TRUE,GX_ANISO_4); /* does this really change anything ? */
|
|
GX_LoadTexObj(&texObj, GX_TEXMAP0);
|
|
GX_InvalidateTexAll();
|
|
|
|
/* vertex coordinate */
|
|
x -= (vmode->fbWidth/2);
|
|
y -= (vmode->efbHeight/2);
|
|
|
|
/* draw textured quad */
|
|
GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
|
|
GX_Position2s16(x,y+h);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(0.0, 1.0);
|
|
GX_Position2s16(x+w,y+h);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(1.0, 1.0);
|
|
GX_Position2s16(x+w,y);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(1.0, 0.0);
|
|
GX_Position2s16(x,y);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(0.0, 0.0);
|
|
GX_End();
|
|
GX_DrawDone();
|
|
}
|
|
}
|
|
|
|
void gxDrawTextureRotate(gx_texture *texture, s32 x, s32 y, s32 w, s32 h, f32 angle, u8 alpha)
|
|
{
|
|
if (!texture) return;
|
|
if (texture->data)
|
|
{
|
|
/* load texture object */
|
|
GXTexObj texObj;
|
|
GX_InitTexObj(&texObj, texture->data, texture->width, texture->height, GX_TF_RGBA8, GX_CLAMP, GX_CLAMP, GX_FALSE);
|
|
GX_InitTexObjLOD(&texObj,GX_LINEAR,GX_LIN_MIP_LIN,0.0,10.0,0.0,GX_FALSE,GX_TRUE,GX_ANISO_4);
|
|
GX_LoadTexObj(&texObj, GX_TEXMAP0);
|
|
GX_InvalidateTexAll();
|
|
|
|
/* vertex coordinate */
|
|
x -= (vmode->fbWidth/2);
|
|
y -= (vmode->efbHeight/2);
|
|
|
|
/* Modelview rotation */
|
|
Mtx m,mv;
|
|
guVector axis = (guVector) {0,0,1};
|
|
guLookAt(mv, &cam.pos, &cam.up, &cam.view);
|
|
guMtxRotAxisDeg (m, &axis, angle);
|
|
guMtxTransApply(m,m, x+w/2,y+h/2,0);
|
|
guMtxConcat(mv,m,mv);
|
|
GX_LoadPosMtxImm(mv, GX_PNMTX0);
|
|
GX_Flush();
|
|
|
|
/* draw textured quad */
|
|
GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
|
|
GX_Position2s16(-w/2,-h/2);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(0.0, 0.0);
|
|
GX_Position2s16(w/2,-h/2);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(1.0, 0.0);
|
|
GX_Position2s16(w/2,h/2);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(1.0, 1.0);
|
|
GX_Position2s16(-w/2,h/2);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(0.0, 1.0);
|
|
GX_End();
|
|
GX_DrawDone();
|
|
|
|
/* restore default Modelview */
|
|
guLookAt(mv, &cam.pos, &cam.up, &cam.view);
|
|
GX_LoadPosMtxImm(mv, GX_PNMTX0);
|
|
GX_Flush();
|
|
}
|
|
}
|
|
|
|
void gxDrawTextureRepeat(gx_texture *texture, s32 x, s32 y, s32 w, s32 h, u8 alpha)
|
|
{
|
|
if (!texture) return;
|
|
if (texture->data)
|
|
{
|
|
/* load texture object */
|
|
GXTexObj texObj;
|
|
GX_InitTexObj(&texObj, texture->data, texture->width, texture->height, GX_TF_RGBA8, GX_REPEAT, GX_REPEAT, GX_FALSE);
|
|
GX_LoadTexObj(&texObj, GX_TEXMAP0);
|
|
GX_InvalidateTexAll();
|
|
|
|
/* vertex coordinate */
|
|
x -= (vmode->fbWidth/2);
|
|
y -= (vmode->efbHeight/2);
|
|
|
|
/* texture coordinates */
|
|
f32 s = (f32)w / (f32)texture->width;
|
|
f32 t = (f32)h / (f32)texture->height;
|
|
|
|
/* draw textured quad */
|
|
GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
|
|
GX_Position2s16(x,y+h);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(0.0, t);
|
|
GX_Position2s16(x+w,y+h);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(s, t);
|
|
GX_Position2s16(x+w,y);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(s, 0.0);
|
|
GX_Position2s16(x,y);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(0.0, 0.0);
|
|
GX_End();
|
|
GX_DrawDone();
|
|
}
|
|
}
|
|
|
|
void gxDrawScreenshot(u8 alpha)
|
|
{
|
|
if (!rmode) return;
|
|
|
|
/* get current game screen texture */
|
|
GXTexObj texobj;
|
|
GX_InitTexObj(&texobj, texturemem, vwidth, vheight, GX_TF_RGB565, GX_CLAMP, GX_CLAMP, GX_FALSE);
|
|
GX_LoadTexObj(&texobj, GX_TEXMAP0);
|
|
GX_InvalidateTexAll();
|
|
|
|
/* get current aspect ratio */
|
|
int xscale,yscale;
|
|
gxSetAspectRatio(&xscale, &yscale);
|
|
|
|
/* adjust horizontal scaling */
|
|
xscale = (xscale * vmode->fbWidth) / vmode->viWidth;
|
|
|
|
/* adjust screen position */
|
|
int xshift = (config.xshift * vmode->fbWidth) / vmode->viWidth;
|
|
int yshift = (config.yshift * vmode->efbHeight) / vmode->viHeight;
|
|
|
|
/* set vertices position & size */
|
|
s32 x = xshift - xscale;
|
|
s32 y = yshift - (yscale * 2);
|
|
s32 w = xscale * 2;
|
|
s32 h = yscale * 4;
|
|
|
|
/* black out surrounding area if necessary (Game Gear without borders) */
|
|
if ((w < 640) || (h < 480))
|
|
{
|
|
gxDrawRectangle(0, 0, 640, 480, 255, (GXColor)BLACK);
|
|
}
|
|
|
|
/* draw textured quad */
|
|
GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
|
|
GX_Position2s16(x,y+h);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(0.0, 1.0);
|
|
GX_Position2s16(x+w,y+h);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(1.0, 1.0);
|
|
GX_Position2s16(x+w,y);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(1.0, 0.0);
|
|
GX_Position2s16(x,y);
|
|
GX_Color4u8(0xff,0xff,0xff,alpha);
|
|
GX_TexCoord2f32(0.0, 0.0);
|
|
GX_End();
|
|
GX_DrawDone();
|
|
}
|
|
|
|
void gxCopyScreenshot(gx_texture *texture)
|
|
{
|
|
/* retrieve gamescreen texture */
|
|
GXTexObj texobj;
|
|
GX_InitTexObj(&texobj, texturemem, vwidth, vheight, GX_TF_RGB565, GX_CLAMP, GX_CLAMP, GX_FALSE);
|
|
GX_LoadTexObj(&texobj, GX_TEXMAP0);
|
|
GX_InvalidateTexAll();
|
|
|
|
/* scale texture to EFB width */
|
|
s32 w = ((bitmap.viewport.w + 2*bitmap.viewport.x) * 640) / bitmap.viewport.w;
|
|
s32 h = (bitmap.viewport.h + 2*bitmap.viewport.y) * 2;
|
|
s32 x = -w/2;
|
|
s32 y = -(240+ 2*bitmap.viewport.y);
|
|
|
|
/* black out surrounding area if necessary (Game Gear without borders) */
|
|
if ((w < 640) || (h < 480))
|
|
{
|
|
gxDrawRectangle(0, 0, 640, 480, 255, (GXColor)BLACK);
|
|
}
|
|
|
|
/* draw textured quad */
|
|
GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
|
|
GX_Position2s16(x,y+h);
|
|
GX_Color4u8(0xff,0xff,0xff,0xff);
|
|
GX_TexCoord2f32(0.0, 1.0);
|
|
GX_Position2s16(x+w,y+h);
|
|
GX_Color4u8(0xff,0xff,0xff,0xff);
|
|
GX_TexCoord2f32(1.0, 1.0);
|
|
GX_Position2s16(x+w,y);
|
|
GX_Color4u8(0xff,0xff,0xff,0xff);
|
|
GX_TexCoord2f32(1.0, 0.0);
|
|
GX_Position2s16(x,y);
|
|
GX_Color4u8(0xff,0xff,0xff,0xff);
|
|
GX_TexCoord2f32(0.0, 0.0);
|
|
GX_End();
|
|
|
|
/* copy EFB to texture */
|
|
texture->format = GX_TF_RGBA8;
|
|
texture->width = 320;
|
|
texture->height = bitmap.viewport.h;
|
|
texture->data = screenshot;
|
|
GX_SetTexCopySrc(0, 0, texture->width * 2, texture->height * 2);
|
|
GX_SetTexCopyDst(texture->width, texture->height, texture->format, GX_TRUE);
|
|
GX_DrawDone();
|
|
GX_CopyTex(texture->data, GX_TRUE);
|
|
GX_Flush();
|
|
|
|
/* wait for copy operation to finish */
|
|
/* GX_PixModeSync is only useful if GX_ command follows */
|
|
/* we use dummy GX commands to stall CPU execution */
|
|
GX_PixModeSync();
|
|
GX_LoadTexObj(&texobj, GX_TEXMAP0);
|
|
GX_InvalidateTexAll();
|
|
GX_Flush();
|
|
DCFlushRange(texture->data, texture->width * texture->height * 4);
|
|
}
|
|
|
|
/* Take Screenshot */
|
|
void gxSaveScreenshot(char *filename)
|
|
{
|
|
/* capture screenshot into a texture */
|
|
gx_texture texture;
|
|
gxCopyScreenshot(&texture);
|
|
|
|
/* open PNG file */
|
|
FILE *f = fopen(filename,"wb");
|
|
if (f)
|
|
{
|
|
/* encode screenshot into PNG file */
|
|
gxTextureWritePNG(&texture,f);
|
|
fclose(f);
|
|
}
|
|
}
|
|
|
|
void gxSetScreen(void)
|
|
{
|
|
GX_DrawDone();
|
|
GX_CopyDisp(xfb[whichfb], GX_FALSE);
|
|
GX_Flush();
|
|
VIDEO_SetNextFramebuffer (xfb[whichfb]);
|
|
VIDEO_Flush ();
|
|
VIDEO_WaitVSync ();
|
|
gx_input_UpdateMenu();
|
|
}
|
|
|
|
void gxClearScreen(GXColor color)
|
|
{
|
|
whichfb ^= 1;
|
|
GX_SetCopyClear(color,0x00ffffff);
|
|
GX_CopyDisp(xfb[whichfb], GX_TRUE);
|
|
GX_Flush();
|
|
}
|
|
|
|
/***************************************************************************************/
|
|
/* GX Texture <-> LibPNG routines */
|
|
/***************************************************************************************/
|
|
|
|
/* libpng read callback function */
|
|
static void png_read_from_mem (png_structp png_ptr, png_bytep data, png_size_t length)
|
|
{
|
|
png_image *image = (png_image *)png_get_io_ptr(png_ptr);
|
|
|
|
/* copy data from image buffer */
|
|
memcpy (data, image->buffer + image->offset, length);
|
|
|
|
/* advance in the file */
|
|
image->offset += length;
|
|
}
|
|
|
|
/* convert PNG image (from file or data buffer) into RGBA8 texture */
|
|
gx_texture *gxTextureOpenPNG(const u8 *png_data, FILE *png_file)
|
|
{
|
|
int i;
|
|
|
|
/* create a png read struct */
|
|
png_structp png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,NULL,NULL,NULL);
|
|
if (!png_ptr) return NULL;
|
|
|
|
/* create a png info struct */
|
|
png_infop info_ptr = png_create_info_struct(png_ptr);
|
|
if (!info_ptr)
|
|
{
|
|
png_destroy_read_struct(&png_ptr,NULL,NULL);
|
|
return NULL;
|
|
}
|
|
|
|
if (png_data)
|
|
{
|
|
/* init PNG image structure */
|
|
png_image image;
|
|
image.buffer = (u8 *) png_data;
|
|
image.offset = 0;
|
|
|
|
/* set callback for the read function */
|
|
png_set_read_fn(png_ptr,(png_voidp *)(&image),png_read_from_mem);
|
|
}
|
|
else if (png_file)
|
|
{
|
|
/* check for valid magic number */
|
|
png_byte magic[8];
|
|
if (fread (magic, 1, 8, png_file) != 8)
|
|
{
|
|
png_destroy_read_struct(&png_ptr,&info_ptr,NULL);
|
|
return NULL;
|
|
}
|
|
|
|
if (png_sig_cmp (magic, 0, 8))
|
|
{
|
|
png_destroy_read_struct(&png_ptr,&info_ptr,NULL);
|
|
return NULL;
|
|
}
|
|
|
|
/* set IO callback for read function */
|
|
png_init_io (png_ptr, png_file);
|
|
png_set_sig_bytes (png_ptr, 8);
|
|
}
|
|
else
|
|
{
|
|
png_destroy_read_struct(&png_ptr,&info_ptr,NULL);
|
|
return NULL;
|
|
}
|
|
|
|
/* read png info */
|
|
png_read_info(png_ptr,info_ptr);
|
|
|
|
/* retrieve image information */
|
|
u32 width = png_get_image_width(png_ptr,info_ptr);
|
|
u32 height = png_get_image_height(png_ptr,info_ptr);
|
|
u32 bit_depth = png_get_bit_depth(png_ptr,info_ptr);
|
|
u32 color_type = png_get_color_type(png_ptr,info_ptr);
|
|
|
|
/* ensure PNG file is in the supported format */
|
|
if (png_file)
|
|
{
|
|
/* support for RGBA8 textures ONLY !*/
|
|
if ((color_type != PNG_COLOR_TYPE_RGB_ALPHA) || (bit_depth != 8))
|
|
{
|
|
png_destroy_read_struct(&png_ptr, &info_ptr,NULL);
|
|
return NULL;
|
|
}
|
|
|
|
/* 4x4 tiles are required */
|
|
if ((width%4) || (height%4))
|
|
{
|
|
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/* allocate memory to store raw image data */
|
|
u32 stride = width << 2;
|
|
u8 *img_data = memalign (32, stride * height);
|
|
if (!img_data)
|
|
{
|
|
png_destroy_read_struct(&png_ptr,&info_ptr,NULL);
|
|
return NULL;
|
|
}
|
|
|
|
/* allocate row pointer data */
|
|
png_bytep *row_pointers = (png_bytep *)memalign (32, sizeof (png_bytep) * height);
|
|
if (!row_pointers)
|
|
{
|
|
free (img_data);
|
|
png_destroy_read_struct(&png_ptr,&info_ptr,NULL);
|
|
return NULL;
|
|
}
|
|
|
|
/* store raw image data */
|
|
for (i = 0; i < height; i++)
|
|
{
|
|
row_pointers[i] = img_data + (i * stride);
|
|
}
|
|
|
|
/* decode image */
|
|
png_read_image(png_ptr, row_pointers);
|
|
|
|
/* finish decompression and release memory */
|
|
png_read_end(png_ptr, NULL);
|
|
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
|
|
free(row_pointers);
|
|
|
|
/* initialize texture */
|
|
gx_texture *texture = (gx_texture *)memalign(32, sizeof(gx_texture));
|
|
if (!texture)
|
|
{
|
|
free (img_data);
|
|
return NULL;
|
|
}
|
|
|
|
/* initialize texture data */
|
|
texture->data = memalign(32, stride * height);
|
|
if (!texture->data)
|
|
{
|
|
free (img_data);
|
|
free(texture);
|
|
return NULL;
|
|
}
|
|
|
|
memset(texture->data, 0, stride * height);
|
|
texture->width = width;
|
|
texture->height = height;
|
|
texture->format = GX_TF_RGBA8;
|
|
|
|
/* encode to GX_TF_RGBA8 format (4x4 pixels paired titles) */
|
|
u16 *dst_ar = (u16 *)(texture->data);
|
|
u16 *dst_gb = (u16 *)(texture->data + 32);
|
|
u32 *src1 = (u32 *)(img_data);
|
|
u32 *src2 = (u32 *)(img_data + stride);
|
|
u32 *src3 = (u32 *)(img_data + 2*stride);
|
|
u32 *src4 = (u32 *)(img_data + 3*stride);
|
|
u32 pixel,h,w;
|
|
|
|
for (h=0; h<height; h+=4)
|
|
{
|
|
for (w=0; w<width; w+=4)
|
|
{
|
|
/* line N (4 pixels) */
|
|
for (i=0; i<4; i++)
|
|
{
|
|
pixel = *src1++;
|
|
*dst_ar++= ((pixel << 8) & 0xff00) | ((pixel >> 24) & 0x00ff);
|
|
*dst_gb++= (pixel >> 8) & 0xffff;
|
|
}
|
|
|
|
/* line N + 1 (4 pixels) */
|
|
for (i=0; i<4; i++)
|
|
{
|
|
pixel = *src2++;
|
|
*dst_ar++= ((pixel << 8) & 0xff00) | ((pixel >> 24) & 0x00ff);
|
|
*dst_gb++= (pixel >> 8) & 0xffff;
|
|
}
|
|
|
|
/* line N + 2 (4 pixels) */
|
|
for (i=0; i<4; i++)
|
|
{
|
|
pixel = *src3++;
|
|
*dst_ar++= ((pixel << 8) & 0xff00) | ((pixel >> 24) & 0x00ff);
|
|
*dst_gb++= (pixel >> 8) & 0xffff;
|
|
}
|
|
|
|
/* line N + 3 (4 pixels) */
|
|
for (i=0; i<4; i++)
|
|
{
|
|
pixel = *src4++;
|
|
*dst_ar++= ((pixel << 8) & 0xff00) | ((pixel >> 24) & 0x00ff);
|
|
*dst_gb++= (pixel >> 8) & 0xffff;
|
|
}
|
|
|
|
/* next paired tiles */
|
|
dst_ar += 16;
|
|
dst_gb += 16;
|
|
}
|
|
|
|
/* next 4 lines */
|
|
src1 = src4;
|
|
src2 = src1 + width;
|
|
src3 = src2 + width;
|
|
src4 = src3 + width;
|
|
}
|
|
|
|
/* release memory */
|
|
free(img_data);
|
|
|
|
/* flush texture data from cache */
|
|
DCFlushRange(texture->data, height * stride);
|
|
|
|
return texture;
|
|
}
|
|
|
|
/* Write RGBA8 Texture to PNG file */
|
|
void gxTextureWritePNG(gx_texture *texture, FILE *png_file)
|
|
{
|
|
/* allocate PNG data buffer */
|
|
u8 *img_data = (u8 *)memalign(32, texture->width * texture->height * 4);
|
|
if(!img_data) return;
|
|
|
|
/* decode GX_TF_RGBA8 format (4x4 pixels paired titles) */
|
|
u16 *ar = (u16 *)(texture->data);
|
|
u16 *gb = (u16 *)(texture->data + 32);
|
|
u32 *dst1 = (u32 *)(img_data);
|
|
u32 *dst2 = dst1 + texture->width;
|
|
u32 *dst3 = dst2 + texture->width;
|
|
u32 *dst4 = dst3 + texture->width;
|
|
u32 i,h,w,pixel;
|
|
|
|
for (h=0; h<texture->height; h+=4)
|
|
{
|
|
for (w=0; w<texture->width; w+=4)
|
|
{
|
|
/* line N (4 pixels) */
|
|
for (i=0; i<4; i++)
|
|
{
|
|
pixel = ((*ar & 0xff) << 24) | (*gb << 8) | ((*ar & 0xff00) >> 8);
|
|
*dst1++ = pixel;
|
|
ar++;
|
|
gb++;
|
|
}
|
|
|
|
/* line N + 1 (4 pixels) */
|
|
for (i=0; i<4; i++)
|
|
{
|
|
pixel = ((*ar & 0xff) << 24) | (*gb << 8) | ((*ar & 0xff00) >> 8);
|
|
*dst2++ = pixel;
|
|
ar++;
|
|
gb++;
|
|
}
|
|
|
|
/* line N + 2 (4 pixels) */
|
|
for (i=0; i<4; i++)
|
|
{
|
|
pixel = ((*ar & 0xff) << 24) | (*gb << 8) | ((*ar & 0xff00) >> 8);
|
|
*dst3++ = pixel;
|
|
ar++;
|
|
gb++;
|
|
}
|
|
|
|
/* line N + 3 (4 pixels) */
|
|
for (i=0; i<4; i++)
|
|
{
|
|
pixel = ((*ar & 0xff) << 24) | (*gb << 8) | ((*ar & 0xff00) >> 8);
|
|
*dst4++ = pixel;
|
|
ar++;
|
|
gb++;
|
|
}
|
|
|
|
/* next paired tiles */
|
|
ar += 16;
|
|
gb += 16;
|
|
}
|
|
|
|
/* next 4 lines */
|
|
dst1 = dst4;
|
|
dst2 = dst1 + texture->width;
|
|
dst3 = dst2 + texture->width;
|
|
dst4 = dst3 + texture->width;
|
|
}
|
|
|
|
/* create a png write struct */
|
|
png_structp png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
|
|
if(!png_ptr)
|
|
{
|
|
free(img_data);
|
|
return;
|
|
}
|
|
|
|
/* create a png info struct */
|
|
png_infop info_ptr = png_create_info_struct (png_ptr);
|
|
if (!info_ptr)
|
|
{
|
|
free(img_data);
|
|
png_destroy_write_struct(&png_ptr, NULL);
|
|
return;
|
|
}
|
|
|
|
/* set IO callback for the write function */
|
|
png_init_io(png_ptr, png_file);
|
|
|
|
/* set PNG file properties */
|
|
png_set_IHDR(png_ptr, info_ptr, texture->width, texture->height, 8, PNG_COLOR_TYPE_RGB_ALPHA,
|
|
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, PNG_FILTER_TYPE_DEFAULT);
|
|
|
|
/* allocate row pointer data */
|
|
png_bytep *row_pointers = (png_bytep *)memalign (32, sizeof (png_bytep) * texture->height);
|
|
if (!row_pointers)
|
|
{
|
|
free (img_data);
|
|
png_destroy_write_struct(&png_ptr, &info_ptr);
|
|
return;
|
|
}
|
|
|
|
/* store raw image data */
|
|
for (i = 0; i < texture->height; i++)
|
|
{
|
|
row_pointers[i] = img_data + (i * texture->width * 4);
|
|
}
|
|
|
|
/* configure libpng for image data */
|
|
png_set_rows(png_ptr,info_ptr,row_pointers);
|
|
|
|
/* write data to PNG file */
|
|
png_write_png(png_ptr,info_ptr,PNG_TRANSFORM_IDENTITY,NULL);
|
|
|
|
/* finish compression and release memory */
|
|
png_write_end(png_ptr, NULL);
|
|
free(row_pointers);
|
|
free(img_data);
|
|
png_destroy_write_struct(&png_ptr, &info_ptr);
|
|
}
|
|
|
|
|
|
void gxTextureClose(gx_texture **p_texture)
|
|
{
|
|
gx_texture *texture = *p_texture;
|
|
|
|
if (texture)
|
|
{
|
|
if (texture->data) free(texture->data);
|
|
free(texture);
|
|
*p_texture = NULL;
|
|
}
|
|
}
|
|
|
|
|
|
/***************************************************************************************/
|
|
/* VIDEO engine */
|
|
/***************************************************************************************/
|
|
|
|
/* Emulation mode -> Menu mode */
|
|
void gx_video_Stop(void)
|
|
{
|
|
/* unallocate NTSC filters */
|
|
if (sms_ntsc) free(sms_ntsc);
|
|
if (md_ntsc) free(md_ntsc);
|
|
sms_ntsc = NULL;
|
|
md_ntsc = NULL;
|
|
|
|
/* lightgun textures */
|
|
gxTextureClose(&crosshair[0]);
|
|
gxTextureClose(&crosshair[1]);
|
|
|
|
/* GX menu rendering */
|
|
gxResetRendering(1);
|
|
gxResetMode(vmode);
|
|
|
|
/* display game snapshot */
|
|
gxClearScreen((GXColor)BLACK);
|
|
gxDrawScreenshot(0xff);
|
|
|
|
/* default VI settings */
|
|
VIDEO_SetPreRetraceCallback(NULL);
|
|
#ifdef HW_RVL
|
|
VIDEO_SetTrapFilter(1);
|
|
VIDEO_SetGamma(VI_GM_1_0);
|
|
#endif
|
|
|
|
/* adjust TV width */
|
|
vmode->viWidth = config.screen_w;
|
|
vmode->viXOrigin = (VI_MAX_WIDTH_NTSC - vmode->viWidth)/2;
|
|
VIDEO_Configure(vmode);
|
|
|
|
/* wait for VSYNC */
|
|
gxSetScreen();
|
|
}
|
|
|
|
/* Menu mode -> Emulation mode */
|
|
void gx_video_Start(void)
|
|
{
|
|
#ifdef HW_RVL
|
|
VIDEO_SetTrapFilter(config.trap);
|
|
VIDEO_SetGamma((int)(config.gamma * 10.0));
|
|
#endif
|
|
|
|
/* TV mode */
|
|
if ((config.tv_mode == 1) || ((config.tv_mode == 2) && vdp_pal))
|
|
{
|
|
/* 50 Hz */
|
|
gc_pal = 1;
|
|
}
|
|
else
|
|
{
|
|
/* 60 Hz */
|
|
gc_pal = 0;
|
|
}
|
|
|
|
/* When VSYNC is forced ON or AUTO with TV mode matching emulated video mode, emulation is synchronized with video hardware */
|
|
if (config.vsync && (gc_pal == vdp_pal))
|
|
{
|
|
/* VSYNC callback */
|
|
VIDEO_SetPreRetraceCallback(vi_callback);
|
|
VIDEO_Flush();
|
|
}
|
|
|
|
/* set interlaced or progressive video mode */
|
|
if (config.render == 2)
|
|
{
|
|
tvmodes[2]->viTVMode = VI_TVMODE_NTSC_PROG;
|
|
tvmodes[2]->xfbMode = VI_XFBMODE_SF;
|
|
}
|
|
else if (config.render == 1)
|
|
{
|
|
tvmodes[2]->viTVMode = tvmodes[0]->viTVMode & ~3;
|
|
tvmodes[2]->xfbMode = VI_XFBMODE_DF;
|
|
}
|
|
|
|
/* update horizontal border width */
|
|
if (system_hw == SYSTEM_GG)
|
|
{
|
|
bitmap.viewport.x = (config.overscan & 2) ? 14 : -48;
|
|
}
|
|
else
|
|
{
|
|
bitmap.viewport.x = (config.overscan & 2) * 7;
|
|
}
|
|
|
|
/* force viewport update */
|
|
bitmap.viewport.changed = 3;
|
|
|
|
/* NTSC filter */
|
|
if (config.ntsc)
|
|
{
|
|
/* allocate filters */
|
|
if (!sms_ntsc)
|
|
{
|
|
sms_ntsc = (sms_ntsc_t *)memalign(32,sizeof(sms_ntsc_t));
|
|
}
|
|
if (!md_ntsc)
|
|
{
|
|
md_ntsc = (md_ntsc_t *)memalign(32,sizeof(md_ntsc_t));
|
|
}
|
|
|
|
/* setup filters default configuration */
|
|
switch (config.ntsc)
|
|
{
|
|
case 1:
|
|
sms_ntsc_init(sms_ntsc, &sms_ntsc_composite);
|
|
md_ntsc_init(md_ntsc, &md_ntsc_composite);
|
|
break;
|
|
case 2:
|
|
sms_ntsc_init(sms_ntsc, &sms_ntsc_svideo);
|
|
md_ntsc_init(md_ntsc, &md_ntsc_svideo);
|
|
break;
|
|
case 3:
|
|
sms_ntsc_init(sms_ntsc, &sms_ntsc_rgb);
|
|
md_ntsc_init(md_ntsc, &md_ntsc_rgb);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* lightgun textures */
|
|
int i, player = 0;
|
|
for (i=0; i<MAX_DEVICES; i++)
|
|
{
|
|
/* Check for emulated lightguns */
|
|
if (input.dev[i] == DEVICE_LIGHTGUN)
|
|
{
|
|
/* Check if input device is affected to player */
|
|
if (config.input[player].device >= 0)
|
|
{
|
|
if ((i == 0) || ((i == 4) && (input.system[1] != SYSTEM_LIGHTPHASER)))
|
|
{
|
|
/* Lightgun #1 */
|
|
if (config.gun_cursor[0])
|
|
{
|
|
crosshair[0] = gxTextureOpenPNG(Crosshair_p1_png,0);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Lightgun #2 */
|
|
if (config.gun_cursor[1])
|
|
{
|
|
crosshair[1] = gxTextureOpenPNG(Crosshair_p2_png,0);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Check for any emulated device */
|
|
if (input.dev[i] != NO_DEVICE)
|
|
{
|
|
/* increment player index */
|
|
player++;
|
|
}
|
|
}
|
|
|
|
/* GX emulation rendering */
|
|
gxResetRendering(0);
|
|
|
|
/* resynchronize emulation with VSYNC */
|
|
VIDEO_WaitVSync();
|
|
}
|
|
|
|
/* GX render update */
|
|
void gx_video_Update(void)
|
|
{
|
|
int update = bitmap.viewport.changed & 1;
|
|
|
|
/* check if display has changed during frame */
|
|
if (update)
|
|
{
|
|
/* update texture size */
|
|
vwidth = bitmap.viewport.w + (2 * bitmap.viewport.x);
|
|
vheight = bitmap.viewport.h + (2 * bitmap.viewport.y);
|
|
|
|
/* interlaced mode */
|
|
if (config.render && interlaced)
|
|
{
|
|
vheight = vheight << 1;
|
|
}
|
|
|
|
/* ntsc filter */
|
|
if (config.ntsc)
|
|
{
|
|
vwidth = (reg[12] & 1) ? MD_NTSC_OUT_WIDTH(vwidth) : SMS_NTSC_OUT_WIDTH(vwidth);
|
|
|
|
/* texel width must remain multiple of 4 */
|
|
vwidth = (vwidth >> 2) << 2;
|
|
}
|
|
|
|
/* initialize texture object */
|
|
GXTexObj texobj;
|
|
GX_InitTexObj(&texobj, texturemem, vwidth, vheight, GX_TF_RGB565, GX_CLAMP, GX_CLAMP, GX_FALSE);
|
|
|
|
/* configure texture filtering */
|
|
if (!config.bilinear)
|
|
{
|
|
GX_InitTexObjLOD(&texobj,GX_NEAR,GX_NEAR_MIP_NEAR,0.0,10.0,0.0,GX_FALSE,GX_FALSE,GX_ANISO_1);
|
|
}
|
|
|
|
/* load texture object */
|
|
GX_LoadTexObj(&texobj, GX_TEXMAP0);
|
|
|
|
/* update rendering mode */
|
|
if (config.render)
|
|
{
|
|
rmode = tvmodes[gc_pal*3 + 2];
|
|
}
|
|
else
|
|
{
|
|
rmode = tvmodes[gc_pal*3 + interlaced];
|
|
}
|
|
|
|
/* update aspect ratio */
|
|
gxResetScaler(vwidth);
|
|
|
|
/* update GX rendering mode */
|
|
gxResetMode(rmode);
|
|
|
|
/* update VI mode */
|
|
VIDEO_Configure(rmode);
|
|
}
|
|
|
|
/* texture is now directly mapped by the line renderer */
|
|
|
|
/* force texture cache update */
|
|
DCFlushRange(texturemem, TEX_SIZE);
|
|
GX_InvalidateTexAll();
|
|
|
|
/* render textured quad */
|
|
draw_square();
|
|
|
|
/* lightgun # 1 screen mark */
|
|
if (crosshair[0])
|
|
{
|
|
if (input.system[0] == SYSTEM_LIGHTPHASER)
|
|
{
|
|
gxDrawCrosshair(crosshair[0], input.analog[0][0],input.analog[0][1]);
|
|
}
|
|
else
|
|
{
|
|
gxDrawCrosshair(crosshair[0], input.analog[4][0],input.analog[4][1]);
|
|
}
|
|
}
|
|
|
|
/* lightgun #2 screen mark */
|
|
if (crosshair[1])
|
|
{
|
|
if (input.system[1] == SYSTEM_LIGHTPHASER)
|
|
{
|
|
gxDrawCrosshair(crosshair[1], input.analog[4][0],input.analog[4][1]);
|
|
}
|
|
else
|
|
{
|
|
gxDrawCrosshair(crosshair[1], input.analog[5][0],input.analog[5][1]);
|
|
}
|
|
}
|
|
|
|
/* swap XFB */
|
|
whichfb ^= 1;
|
|
|
|
/* copy EFB to XFB */
|
|
GX_DrawDone();
|
|
GX_CopyDisp(xfb[whichfb], GX_TRUE);
|
|
GX_Flush();
|
|
|
|
/* XFB is ready to be displayed */
|
|
VIDEO_SetNextFramebuffer(xfb[whichfb]);
|
|
VIDEO_Flush();
|
|
|
|
if (update)
|
|
{
|
|
/* clear update flags */
|
|
bitmap.viewport.changed &= ~1;
|
|
|
|
/* field synchronization */
|
|
VIDEO_WaitVSync();
|
|
if (rmode->viTVMode & VI_NON_INTERLACE)
|
|
{
|
|
VIDEO_WaitVSync();
|
|
}
|
|
else while (VIDEO_GetNextField() != odd_frame)
|
|
{
|
|
VIDEO_WaitVSync();
|
|
}
|
|
|
|
/* Audio DMA need to be resynchronized with VSYNC */
|
|
audioStarted = 0;
|
|
}
|
|
}
|
|
|
|
/* Initialize VIDEO subsystem */
|
|
void gx_video_Init(void)
|
|
{
|
|
/*
|
|
* Before doing anything else under libogc,
|
|
* Call VIDEO_Init
|
|
*/
|
|
VIDEO_Init();
|
|
|
|
/* Get the current VIDEO mode then :
|
|
- set menu video mode (480p/576p/480i/576i)
|
|
- set emulator rendering 60hz TV modes (PAL/MPAL/NTSC/EURGB60)
|
|
*/
|
|
vmode = VIDEO_GetPreferredMode(NULL);
|
|
|
|
/* Adjust display settings */
|
|
switch (vmode->viTVMode >> 2)
|
|
{
|
|
case VI_PAL: /* 576 lines scaled (PAL 50Hz) */
|
|
TV60hz_240p.viTVMode = VI_TVMODE_EURGB60_DS;
|
|
TV60hz_240i.viTVMode = VI_TVMODE_EURGB60_INT;
|
|
TV60hz_480i.viTVMode = VI_TVMODE_EURGB60_INT;
|
|
break;
|
|
|
|
default: /* 480 lines (NTSC, MPAL or PAL 60Hz) */
|
|
TV60hz_240p.viTVMode = VI_TVMODE(vmode->viTVMode >> 2, VI_NON_INTERLACE);
|
|
TV60hz_240i.viTVMode = VI_TVMODE(vmode->viTVMode >> 2, VI_INTERLACE);
|
|
TV60hz_480i.viTVMode = VI_TVMODE(vmode->viTVMode >> 2, VI_INTERLACE);
|
|
break;
|
|
}
|
|
|
|
/* Configure VI */
|
|
VIDEO_Configure (vmode);
|
|
|
|
/* Configure the framebuffers (double-buffering) */
|
|
xfb[0] = (u32 *) MEM_K0_TO_K1((u32 *) SYS_AllocateFramebuffer(&TV50hz_576i));
|
|
xfb[1] = (u32 *) MEM_K0_TO_K1((u32 *) SYS_AllocateFramebuffer(&TV50hz_576i));
|
|
|
|
/* Define a console */
|
|
console_init(xfb[0], 20, 64, 640, 574, 574 * 2);
|
|
|
|
/* Clear framebuffers to black */
|
|
VIDEO_ClearFrameBuffer(vmode, xfb[0], COLOR_BLACK);
|
|
VIDEO_ClearFrameBuffer(vmode, xfb[1], COLOR_BLACK);
|
|
|
|
/* Set the framebuffer to be displayed at next VBlank */
|
|
VIDEO_SetNextFramebuffer(xfb[0]);
|
|
|
|
/* Enable Video Interface */
|
|
VIDEO_SetBlack(FALSE);
|
|
|
|
/* Update VIDEO settings for next VBlank */
|
|
VIDEO_Flush();
|
|
|
|
/* Wait for VBlank */
|
|
VIDEO_WaitVSync();
|
|
VIDEO_WaitVSync();
|
|
|
|
/* Initialize GX */
|
|
gxStart();
|
|
gxResetRendering(1);
|
|
gxResetMode(vmode);
|
|
|
|
/* initialize FONT */
|
|
FONT_Init();
|
|
|
|
/* Initialize textures */
|
|
texturemem = memalign(32, TEX_SIZE);
|
|
screenshot = memalign(32, HASPECT*VASPECT*4);
|
|
}
|
|
|
|
void gx_video_Shutdown(void)
|
|
{
|
|
if (texturemem) free(texturemem);
|
|
if (screenshot) free(screenshot);
|
|
FONT_Shutdown();
|
|
VIDEO_ClearFrameBuffer(vmode, xfb[whichfb], COLOR_BLACK);
|
|
VIDEO_Flush();
|
|
VIDEO_WaitVSync();
|
|
}
|
|
|
|
/* Custom NTSC blitters */
|
|
typedef unsigned short sms_ntsc_out_t;
|
|
typedef unsigned short md_ntsc_out_t;
|
|
|
|
void sms_ntsc_blit( sms_ntsc_t const* ntsc, SMS_NTSC_IN_T const* table, unsigned char* input,
|
|
int in_width, int vline)
|
|
{
|
|
int const chunk_count = in_width / sms_ntsc_in_chunk;
|
|
|
|
/* handle extra 0, 1, or 2 pixels by placing them at beginning of row */
|
|
int const in_extra = in_width - chunk_count * sms_ntsc_in_chunk;
|
|
unsigned const extra2 = (unsigned) -(in_extra >> 1 & 1); /* (unsigned) -1 = ~0 */
|
|
unsigned const extra1 = (unsigned) -(in_extra & 1) | extra2;
|
|
|
|
/* use palette entry 0 for unused pixels */
|
|
SMS_NTSC_IN_T border = table[0];
|
|
|
|
SMS_NTSC_BEGIN_ROW( ntsc, border,
|
|
(SMS_NTSC_ADJ_IN( table[input[0]] )) & extra2,
|
|
(SMS_NTSC_ADJ_IN( table[input[extra2 & 1]] )) & extra1 );
|
|
|
|
/* directly fill the RGB565 texture */
|
|
/* one tile is 32 byte = 4x4 pixels */
|
|
/* tiles are stored continuously in texture memory */
|
|
in_width = SMS_NTSC_OUT_WIDTH(in_width) / 4;
|
|
int offset = ((in_width * 32) * (vline / 4)) + ((vline & 3) * 8);
|
|
sms_ntsc_out_t* __restrict__ line_out = (sms_ntsc_out_t*)(texturemem + offset);
|
|
offset = 0;
|
|
|
|
int n;
|
|
input += in_extra;
|
|
|
|
for ( n = chunk_count; n; --n )
|
|
{
|
|
/* order of input and output pixels must not be altered */
|
|
SMS_NTSC_COLOR_IN( 0, ntsc, SMS_NTSC_ADJ_IN( table[*input++] ) );
|
|
SMS_NTSC_RGB_OUT( 0, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
SMS_NTSC_RGB_OUT( 1, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
|
|
SMS_NTSC_COLOR_IN( 1, ntsc, SMS_NTSC_ADJ_IN( table[*input++] ) );
|
|
SMS_NTSC_RGB_OUT( 2, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
SMS_NTSC_RGB_OUT( 3, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
|
|
SMS_NTSC_COLOR_IN( 2, ntsc, SMS_NTSC_ADJ_IN( table[*input++] ) );
|
|
SMS_NTSC_RGB_OUT( 4, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
SMS_NTSC_RGB_OUT( 5, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
SMS_NTSC_RGB_OUT( 6, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
}
|
|
|
|
/* finish final pixels */
|
|
SMS_NTSC_COLOR_IN( 0, ntsc, border );
|
|
SMS_NTSC_RGB_OUT( 0, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
SMS_NTSC_RGB_OUT( 1, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
|
|
SMS_NTSC_COLOR_IN( 1, ntsc, border );
|
|
SMS_NTSC_RGB_OUT( 2, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
SMS_NTSC_RGB_OUT( 3, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
|
|
SMS_NTSC_COLOR_IN( 2, ntsc, border );
|
|
SMS_NTSC_RGB_OUT( 4, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
SMS_NTSC_RGB_OUT( 5, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
SMS_NTSC_RGB_OUT( 6, line_out[offset++] );
|
|
if ((offset % 4) == 0) offset += 12;
|
|
}
|
|
|
|
void md_ntsc_blit( md_ntsc_t const* ntsc, MD_NTSC_IN_T const* table, unsigned char* input,
|
|
int in_width, int vline)
|
|
{
|
|
int const chunk_count = in_width / md_ntsc_in_chunk - 1;
|
|
|
|
/* use palette entry 0 for unused pixels */
|
|
MD_NTSC_IN_T border = table[0];
|
|
|
|
MD_NTSC_BEGIN_ROW( ntsc, border,
|
|
MD_NTSC_ADJ_IN( table[*input++] ),
|
|
MD_NTSC_ADJ_IN( table[*input++] ),
|
|
MD_NTSC_ADJ_IN( table[*input++] ) );
|
|
|
|
/* directly fill the RGB565 texture */
|
|
/* one tile is 32 byte = 4x4 pixels */
|
|
/* tiles are stored continuously in texture memory */
|
|
in_width = MD_NTSC_OUT_WIDTH(in_width) >> 2;
|
|
int offset = ((in_width << 5) * (vline >> 2)) + ((vline & 3) * 8);
|
|
md_ntsc_out_t* __restrict__ line_out = (md_ntsc_out_t*)(texturemem + offset);
|
|
|
|
int n;
|
|
|
|
for ( n = chunk_count; n; --n )
|
|
{
|
|
/* order of input and output pixels must not be altered */
|
|
MD_NTSC_COLOR_IN( 0, ntsc, MD_NTSC_ADJ_IN( table[*input++] ) );
|
|
MD_NTSC_RGB_OUT( 0, *line_out++ );
|
|
MD_NTSC_RGB_OUT( 1, *line_out++ );
|
|
|
|
MD_NTSC_COLOR_IN( 1, ntsc, MD_NTSC_ADJ_IN( table[*input++] ) );
|
|
MD_NTSC_RGB_OUT( 2, *line_out++ );
|
|
MD_NTSC_RGB_OUT( 3, *line_out++ );
|
|
|
|
line_out += 12;
|
|
|
|
MD_NTSC_COLOR_IN( 2, ntsc, MD_NTSC_ADJ_IN( table[*input++] ) );
|
|
MD_NTSC_RGB_OUT( 4, *line_out++ );
|
|
MD_NTSC_RGB_OUT( 5, *line_out++ );
|
|
|
|
MD_NTSC_COLOR_IN( 3, ntsc, MD_NTSC_ADJ_IN( table[*input++] ) );
|
|
MD_NTSC_RGB_OUT( 6, *line_out++ );
|
|
MD_NTSC_RGB_OUT( 7, *line_out++ );
|
|
|
|
line_out += 12;
|
|
}
|
|
|
|
/* finish final pixels */
|
|
MD_NTSC_COLOR_IN( 0, ntsc, MD_NTSC_ADJ_IN( table[*input++] ) );
|
|
MD_NTSC_RGB_OUT( 0, *line_out++ );
|
|
MD_NTSC_RGB_OUT( 1, *line_out++ );
|
|
|
|
MD_NTSC_COLOR_IN( 1, ntsc, border );
|
|
MD_NTSC_RGB_OUT( 2, *line_out++ );
|
|
MD_NTSC_RGB_OUT( 3, *line_out++ );
|
|
|
|
line_out += 12;
|
|
|
|
MD_NTSC_COLOR_IN( 2, ntsc, border );
|
|
MD_NTSC_RGB_OUT( 4, *line_out++ );
|
|
MD_NTSC_RGB_OUT( 5, *line_out++ );
|
|
|
|
MD_NTSC_COLOR_IN( 3, ntsc, border );
|
|
MD_NTSC_RGB_OUT( 6, *line_out++ );
|
|
MD_NTSC_RGB_OUT( 7, *line_out++ );
|
|
}
|