mirror of https://github.com/PCSX2/pcsx2.git
76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
// SPDX-FileCopyrightText: 2002-2023 PCSX2 Dev Team
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// SPDX-License-Identifier: LGPL-3.0+
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#include "Common.h"
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#include "Gif_Unit.h"
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#include "Gif.h"
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#define GIF_PARSE DevCon.WriteLn
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static const char GifTag_ModeStr[4][16] = {
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"Packed", "Reglist", "Image", "Image2"
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};
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static const char GifTag_RegStr[16][16] = {
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"PRIM", "RGBA", "STQ", "UV",
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"XYZF2", "XYZ2", "TEX0_1", "TEX0_2",
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"CLAMP_1", "CLAMP_2", "FOG", "INVALID",
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"XYZF3", "XYZ3", "A+D", "NOP"
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};
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void Gif_ParsePacket(u8* data, u32 size, GIF_PATH path) {
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Gif_Tag gifTag;
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u8* buffer = data;
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u32 offset = 0;
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GIF_PARSE("Path %d Transfer", path+1);
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for(;;) {
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if (!gifTag.isValid) { // Need new Gif Tag
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if (offset + 16 > size) return;
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gifTag.setTag(&buffer[offset], 1);
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GIF_PARSE("--Gif Tag [mode=%s][pre=%d][prim=%d][nregs=%d][nloop=%d][qwc=%d][EOP=%d]",
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GifTag_ModeStr[gifTag.tag.FLG], gifTag.tag.PRE, gifTag.tag.PRIM,
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gifTag.nRegs, gifTag.nLoop, gifTag.len/16, gifTag.tag.EOP);
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if (offset + 16 + gifTag.len > size) return;
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offset += 16;
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}
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switch(gifTag.tag.FLG) {
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case GIF_FLG_PACKED:
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for(u32 i = 0; i < gifTag.tag.NLOOP; i++) {
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for(u32 j = 0; j < gifTag.nRegs; j++) {
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if (gifTag.regs[j] == GIF_REG_A_D) {
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GIF_PARSE("----[Reg=A+D(0x%x)][nreg=%d][nloop=%d]",
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buffer[offset+8], j, i);
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}
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else {
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GIF_PARSE("----[Reg=%s][nreg=%d][nloop=%d]",
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GifTag_RegStr[gifTag.regs[j]&0xf], j, i);
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}
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offset += 16; // 1 QWC
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}}
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break;
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case GIF_FLG_REGLIST:
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for(u32 j = 0; j < gifTag.nRegs; j++) {
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GIF_PARSE("----[Reg=%s][nreg=%d]", GifTag_RegStr[gifTag.regs[j]&0xf], j);
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}
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offset += gifTag.len; // Data length
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break;
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case GIF_FLG_IMAGE:
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case GIF_FLG_IMAGE2:
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offset += gifTag.len; // Data length
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break;
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jNO_DEFAULT;
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}
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// Reload gif tag next loop
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gifTag.isValid = false;
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}
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}
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void Gif_ParsePacket(GS_Packet& gsPack, GIF_PATH path) {
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Gif_ParsePacket(&gifUnit.gifPath[path].buffer[gsPack.offset], gsPack.size, path);
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}
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