mirror of
https://github.com/Xeeynamo/sotn-decomp.git
synced 2024-11-23 13:09:44 +00:00
Decompile DRA RenderPrimitives (#1371)
Got this working with the aid of PSP! Scratches here: PS1: https://decomp.me/scratch/FDWxW PSP: https://decomp.me/scratch/SObUR These are identical aside from the versions defined at the top of the context, and everything else is done with `ifdef`. Several of the `ifdef` differences are in structs that are defined in `include/psxsdk/libgpu.h`, and since they're in the PSX SDK, I don't want to add those PSP differences into that file. I imagine at some point we'll have a PSP libgpu.h or something, but until then, this function will not actually match on PSP. But since PSP is not the focus of this decomp, I think that's okay. This is 99% similar to Xeeynamo's scratch, the main difference is the treatment of the lines that look like `setSemiTrans(&primbuf->g2, var_s0->drawMode & DRAW_TRANSP);`.
This commit is contained in:
bismurphy
GitHub
parent
cae2cd1030
commit
2399ca62cb
@ -100,8 +100,15 @@ typedef struct Prim {
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#define COLOR_LEN ((COLOR_BPP) / 8)
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#define PALETTE_LEN ((COLORS_PER_PAL) * ((COLOR_BPP) / 8))
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#define COLOR16(r, g, b, a) (r) + ((g) << 5) + ((b) << 10) + ((a) << 15)
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// PS1 and PSP use different values for these two
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#ifndef VERSION_PSP
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#define OTSIZE 0x200
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#define MAXSPRT16 0x280
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#endif
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#ifdef VERSION_PSP
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#define OTSIZE 0x600
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#define MAXSPRT16 0x320
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#endif
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#define MAX_DRAW_MODES 0x400
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#define MAX_TILE_COUNT 0x100
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#define MAX_LINE_G2_COUNT 0x100
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315
src/dra/4A538.c
315
src/dra/4A538.c
@ -1768,21 +1768,6 @@ void FreePrimitives(s32 primitiveIndex) {
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}
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}
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#ifndef NON_MATCHING
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INCLUDE_ASM("dra/nonmatchings/4A538", RenderPrimitives);
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#else
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typedef struct {
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/* 0x1F800000 */ OT_TYPE* ot;
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/* 0x1F800004 */ POLY_GT4* gt4;
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/* 0x1F800008 */ POLY_G4* g4;
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/* 0x1F80000C */ POLY_GT3* gt3;
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/* 0x1F800010 */ LINE_G2* g2;
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/* 0x1F800014 */ TILE* tile;
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/* 0x1F800018 */ DR_MODE* dr;
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/* 0x1F80001C */ SPRT* sprt;
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/* 0x1F800020 */ DR_ENV* env;
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} PrimitivesRenderer;
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typedef union {
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TILE tile;
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LINE_G2 g2;
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@ -1792,37 +1777,50 @@ typedef union {
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SPRT sprt;
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} PrimBuf;
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void RenderPrimitives(void) {
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#ifdef VERSION_PC
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RECT _rect;
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RECT* rect = &_rect;
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PrimitivesRenderer _r;
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PrimitivesRenderer* r = &_r;
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PrimBuf _primbuf;
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PrimBuf* primbuf = &_primbuf;
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#else
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RECT* rect = (RECT*)0x1F800128;
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PrimitivesRenderer* r = (PrimitivesRenderer*)0x1F800000;
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PrimBuf* primbuf = (PrimBuf*)0x1F800024;
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typedef struct {
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u_long* ot;
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POLY_GT4* gt4;
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POLY_G4* g4;
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POLY_GT3* gt3;
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LINE_G2* g2;
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TILE* tile;
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DR_MODE* dr;
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SPRT* sprt;
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DR_ENV* env;
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} PrimitivesRenderer;
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#ifndef VERSION_PSP
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#define OT_MULT 1
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#endif
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#ifdef VERSION_PSP
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#define OT_MULT 3
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#endif
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DRAWENV sp18;
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s32 i;
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s16 sp80;
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Primitive* prim;
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DR_ENV* env;
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s32 useShadeTex;
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s32 var_a1;
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s32 tpage;
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s32 dtd;
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u16 var_v0;
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u16 drawMode;
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u8 primType;
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void RenderPrimitives(void) {
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#ifdef VERSION_PC
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u8 sp[SP_LEN];
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#endif
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#ifdef VERSION_PSP
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#define RECT_LOC 0x12C
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#endif
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#ifndef VERSION_PSP
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#define RECT_LOC 0x128
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#endif
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RECT* rect = (RECT*)SP(RECT_LOC);
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PrimitivesRenderer* r = (PrimitivesRenderer*)SP(0x000);
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PrimBuf* primbuf = (PrimBuf*)SP(0x024);
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s32 i;
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Primitive* prim;
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u8 primType;
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bool useShadeTex;
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bool dtd;
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bool unkBool;
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DRAWENV drawEnv;
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s16 drawOfs;
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DR_ENV* env;
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rect->x = 0;
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rect->y = 0;
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rect->w = 255;
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rect->h = 255;
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r->ot = g_CurrentBuffer->ot;
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r->gt4 = &g_CurrentBuffer->polyGT4[g_GpuUsage.gt4];
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r->g4 = &g_CurrentBuffer->polyG4[g_GpuUsage.g4];
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@ -1832,6 +1830,10 @@ void RenderPrimitives(void) {
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r->dr = &g_CurrentBuffer->drawModes[g_GpuUsage.drawModes];
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r->sprt = &g_CurrentBuffer->sprite[g_GpuUsage.sp];
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r->env = &g_CurrentBuffer->env[g_GpuUsage.env];
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rect->x = 0;
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rect->y = 0;
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rect->w = 255;
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rect->h = 255;
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if (D_8003C0EC[3]) {
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if (g_GpuUsage.tile < MAX_TILE_COUNT) {
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setSemiTrans(r->tile, false);
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@ -1847,21 +1849,21 @@ void RenderPrimitives(void) {
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D_8003C0EC[3]--;
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}
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} else {
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var_a1 = 0;
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i = 0;
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prim = g_PrimBuf + i;
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for (; i < MAX_PRIM_COUNT; prim++, i++) {
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unkBool = 0;
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for (i = 0, prim = &g_PrimBuf[0]; i < MAX_PRIM_COUNT; prim++, i++) {
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primType = prim->type;
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if (!primType) {
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continue;
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}
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drawMode = prim->drawMode;
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if (drawMode & DRAW_HIDE) {
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if (prim->drawMode & DRAW_HIDE) {
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continue;
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}
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var_v0 = drawMode & DRAW_COLORS;
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useShadeTex = var_v0 < 1;
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if (D_800973EC != 0 && !(drawMode & DRAW_MENU)) {
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if (prim->drawMode & DRAW_COLORS) {
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useShadeTex = false;
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} else {
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useShadeTex = true;
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}
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if (D_800973EC != 0 && !(prim->drawMode & DRAW_MENU)) {
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continue;
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}
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if (prim->x0 < -512 || prim->x0 > 512) {
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@ -1870,25 +1872,28 @@ void RenderPrimitives(void) {
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if (prim->y0 < -512 || prim->y0 > 512) {
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continue;
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}
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if (drawMode & DRAW_UNK_400) {
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dtd = 1;
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if (var_a1 == 0) {
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if (prim->drawMode & DRAW_UNK_400) {
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dtd = true;
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if (!unkBool) {
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SetDrawMode(r->dr, 0, 0, 0, rect);
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addPrim(&r->ot[prim->priority], r->dr);
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#ifdef VERSION_PSP
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if (prim->priority < 0 || prim->priority >= 0x200) {
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prim->priority = 0x1FF;
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}
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#endif
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addPrim(&r->ot[prim->priority * OT_MULT], r->dr);
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r->dr++;
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g_GpuUsage.drawModes++;
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}
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} else {
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dtd = 0;
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dtd = false;
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}
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switch (primType) {
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case PRIM_TILE:
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case PRIM_TILE_ALT:
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setTile(&primbuf->tile);
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if (g_GpuUsage.tile < MAX_TILE_COUNT) {
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if (prim->drawMode & DRAW_TRANSP) {
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setSemiTrans(&primbuf->tile, true);
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}
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setSemiTrans(&primbuf->tile, prim->drawMode & DRAW_TRANSP);
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primbuf->tile.r0 = prim->r0;
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primbuf->tile.g0 = prim->g0;
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primbuf->tile.b0 = prim->b0;
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@ -1901,15 +1906,24 @@ void RenderPrimitives(void) {
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}
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primbuf->tile.w = prim->u0;
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primbuf->tile.h = prim->v0;
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__builtin_memcpy(r->tile, &primbuf->tile, sizeof(TILE));
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addPrim(&r->ot[prim->priority], r->tile);
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*r->tile = primbuf->tile;
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#ifdef VERSION_PSP
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if (prim->priority < 0 || prim->priority >= 0x200) {
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prim->priority = 0x1FF;
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}
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#endif
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addPrim(&r->ot[prim->priority * OT_MULT], r->tile);
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r->tile++;
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g_GpuUsage.tile++;
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if ((primType & 0x10) == 0 &&
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if (!(primType & 0x10) &&
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g_GpuUsage.drawModes < MAX_DRAW_MODES) {
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tpage = prim->drawMode & 0x60;
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SetDrawMode(r->dr, 0, dtd, tpage, rect);
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addPrim(&r->ot[prim->priority], r->dr);
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SetDrawMode(r->dr, 0, dtd, prim->drawMode & 0x60, rect);
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#ifdef VERSION_PSP
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if (prim->priority < 0 || prim->priority >= 0x200) {
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prim->priority = 0x1FF;
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}
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#endif
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addPrim(&r->ot[prim->priority * OT_MULT], r->dr);
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r->dr++;
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g_GpuUsage.drawModes++;
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}
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@ -1919,10 +1933,8 @@ void RenderPrimitives(void) {
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case 18:
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setLineG2(&primbuf->g2);
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if (g_GpuUsage.line < MAX_LINE_G2_COUNT) {
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if (prim->drawMode & DRAW_TRANSP) {
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setSemiTrans(&primbuf->g2, true);
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}
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setShadeTex(&primbuf->g2, !!useShadeTex);
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setSemiTrans(&primbuf->g2, prim->drawMode & DRAW_TRANSP);
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setShadeTex(&primbuf->g2, useShadeTex);
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primbuf->g2.r0 = prim->r0;
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primbuf->g2.g0 = prim->g0;
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primbuf->g2.b0 = prim->b0;
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@ -1940,15 +1952,24 @@ void RenderPrimitives(void) {
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primbuf->g2.x1 = prim->x1 + g_backbufferX;
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primbuf->g2.y1 = prim->y1 + g_backbufferY;
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}
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__builtin_memcpy(r->g2, &primbuf->g2, sizeof(LINE_G2));
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addPrim(&r->ot[prim->priority], r->g2);
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*r->g2 = primbuf->g2;
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#ifdef VERSION_PSP
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if (prim->priority < 0 || prim->priority >= 0x200) {
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prim->priority = 0x1FF;
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}
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#endif
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addPrim(&r->ot[prim->priority * OT_MULT], r->g2);
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r->g2++;
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g_GpuUsage.line++;
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if ((primType & 0x10) == 0 &&
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g_GpuUsage.drawModes < MAX_DRAW_MODES) {
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tpage = prim->drawMode & 0x60;
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SetDrawMode(r->dr, 0, dtd, tpage, rect);
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addPrim(&r->ot[prim->priority], r->dr);
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SetDrawMode(r->dr, 0, dtd, prim->drawMode & 0x60, rect);
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#ifdef VERSION_PSP
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if (prim->priority < 0 || prim->priority >= 0x200) {
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prim->priority = 0x1FF;
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}
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#endif
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addPrim(&r->ot[prim->priority * OT_MULT], r->dr);
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r->dr++;
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g_GpuUsage.drawModes++;
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}
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@ -1958,10 +1979,8 @@ void RenderPrimitives(void) {
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case 19:
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setPolyG4(&primbuf->g4);
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if (g_GpuUsage.g4 < MAX_POLY_G4_COUNT) {
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if (prim->drawMode & DRAW_TRANSP) {
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setSemiTrans(&primbuf->g4, true);
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}
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setShadeTex(&primbuf->g4, !!useShadeTex);
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setSemiTrans(&primbuf->g4, prim->drawMode & DRAW_TRANSP);
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setShadeTex(&primbuf->g4, useShadeTex);
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primbuf->g4.r0 = prim->r0;
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primbuf->g4.g0 = prim->g0;
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primbuf->g4.b0 = prim->b0;
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@ -1993,15 +2012,24 @@ void RenderPrimitives(void) {
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primbuf->g4.x3 = prim->x3 + g_backbufferX;
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primbuf->g4.y3 = prim->y3 + g_backbufferY;
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}
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__builtin_memcpy(r->g4, &primbuf->g4, sizeof(POLY_G4));
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addPrim(&r->ot[prim->priority], r->g4);
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*r->g4 = primbuf->g4;
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#ifdef VERSION_PSP
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if (prim->priority < 0 || prim->priority >= 0x200) {
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prim->priority = 0x1FF;
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}
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#endif
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addPrim(&r->ot[prim->priority * OT_MULT], r->g4);
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r->g4++;
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g_GpuUsage.g4++;
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if ((primType & 0x10) == 0 &&
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g_GpuUsage.drawModes < MAX_DRAW_MODES) {
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tpage = prim->drawMode & 0x60;
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SetDrawMode(r->dr, 0, dtd, tpage, rect);
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addPrim(&r->ot[prim->priority], r->dr);
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SetDrawMode(r->dr, 0, dtd, prim->drawMode & 0x60, rect);
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#ifdef VERSION_PSP
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if (prim->priority < 0 || prim->priority >= 0x200) {
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prim->priority = 0x1FF;
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}
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#endif
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addPrim(&r->ot[prim->priority * OT_MULT], r->dr);
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r->dr++;
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g_GpuUsage.drawModes++;
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}
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@ -2010,10 +2038,8 @@ void RenderPrimitives(void) {
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case PRIM_GT4:
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setPolyGT4(&primbuf->gt4);
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if (g_GpuUsage.gt4 < MAX_POLY_GT4_COUNT) {
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if (prim->drawMode & DRAW_TRANSP) {
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setSemiTrans(&primbuf->gt4, true);
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}
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setShadeTex(&primbuf->gt4, !!useShadeTex);
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setSemiTrans(&primbuf->gt4, prim->drawMode & DRAW_TRANSP);
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setShadeTex(&primbuf->gt4, useShadeTex);
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primbuf->gt4.r0 = prim->r0;
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primbuf->gt4.g0 = prim->g0;
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primbuf->gt4.b0 = prim->b0;
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@ -2055,14 +2081,23 @@ void RenderPrimitives(void) {
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primbuf->gt4.v3 = prim->v3;
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primbuf->gt4.tpage = prim->tpage + (prim->drawMode & 0x60);
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primbuf->gt4.clut = g_ClutIds[prim->clut];
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__builtin_memcpy(r->gt4, &primbuf->gt4, sizeof(POLY_GT4));
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addPrim(&r->ot[prim->priority], r->gt4);
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*r->gt4 = primbuf->gt4;
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#ifdef VERSION_PSP
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if (prim->priority < 0 || prim->priority >= 0x200) {
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prim->priority = 0x1FF;
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}
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#endif
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addPrim(&r->ot[prim->priority * OT_MULT], r->gt4);
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r->gt4++;
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g_GpuUsage.gt4++;
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if (dtd && g_GpuUsage.drawModes < MAX_DRAW_MODES) {
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tpage = 0;
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SetDrawMode(r->dr, 0, dtd, tpage, rect);
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addPrim(&r->ot[prim->priority], r->dr);
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SetDrawMode(r->dr, 0, dtd, 0, rect);
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#ifdef VERSION_PSP
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if (prim->priority < 0 || prim->priority >= 0x200) {
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prim->priority = 0x1FF;
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}
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#endif
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addPrim(&r->ot[prim->priority * OT_MULT], r->dr);
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r->dr++;
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g_GpuUsage.drawModes++;
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}
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@ -2071,10 +2106,8 @@ void RenderPrimitives(void) {
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case PRIM_GT3:
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setPolyGT3(&primbuf->gt3);
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if (g_GpuUsage.gt3 < MAX_POLY_GT3_COUNT) {
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if (prim->drawMode & DRAW_TRANSP) {
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setSemiTrans(&primbuf->gt3, true);
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}
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setShadeTex(&primbuf->gt3, !!useShadeTex);
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setSemiTrans(&primbuf->gt3, prim->drawMode & DRAW_TRANSP);
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setShadeTex(&primbuf->gt3, useShadeTex);
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primbuf->gt3.r0 = prim->r0;
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primbuf->gt3.g0 = prim->g0;
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primbuf->gt3.b0 = prim->b0;
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@ -2108,14 +2141,23 @@ void RenderPrimitives(void) {
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primbuf->gt3.tpage = prim->tpage + (prim->drawMode & 0x60);
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primbuf->gt3.clut = g_ClutIds[prim->clut];
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__builtin_memcpy(r->gt3, &primbuf->gt3, sizeof(POLY_GT3));
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addPrim(&r->ot[prim->priority], r->gt3);
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*r->gt3 = primbuf->gt3;
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#ifdef VERSION_PSP
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if (prim->priority < 0 || prim->priority >= 0x200) {
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prim->priority = 0x1FF;
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}
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#endif
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addPrim(&r->ot[prim->priority * OT_MULT], r->gt3);
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r->gt3++;
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g_GpuUsage.gt3++;
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if (dtd && g_GpuUsage.drawModes < MAX_DRAW_MODES) {
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tpage = 0;
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SetDrawMode(r->dr, 0, dtd, tpage, rect);
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addPrim(&r->ot[prim->priority], r->dr);
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SetDrawMode(r->dr, 0, dtd, 0, rect);
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#ifdef VERSION_PSP
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if (prim->priority < 0 || prim->priority >= 0x200) {
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prim->priority = 0x1FF;
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}
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#endif
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addPrim(&r->ot[prim->priority * OT_MULT], r->dr);
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r->dr++;
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g_GpuUsage.drawModes++;
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||||
}
|
||||
@ -2125,10 +2167,8 @@ void RenderPrimitives(void) {
|
||||
case 22:
|
||||
setSprt(&primbuf->sprt);
|
||||
if (g_GpuUsage.sp < MAX_SPRT_COUNT) {
|
||||
if (prim->drawMode & DRAW_TRANSP) {
|
||||
setSemiTrans(&primbuf->sprt, true);
|
||||
}
|
||||
setShadeTex(&primbuf->sprt, !!useShadeTex);
|
||||
setSemiTrans(&primbuf->sprt, prim->drawMode & DRAW_TRANSP);
|
||||
setShadeTex(&primbuf->sprt, useShadeTex);
|
||||
primbuf->sprt.r0 = prim->r0;
|
||||
primbuf->sprt.g0 = prim->g0;
|
||||
primbuf->sprt.b0 = prim->b0;
|
||||
@ -2144,15 +2184,26 @@ void RenderPrimitives(void) {
|
||||
primbuf->sprt.w = prim->u1;
|
||||
primbuf->sprt.h = prim->v1;
|
||||
primbuf->sprt.clut = g_ClutIds[prim->clut];
|
||||
__builtin_memcpy(r->sprt, &primbuf->sprt, sizeof(SPRT));
|
||||
addPrim(&r->ot[prim->priority], r->sprt);
|
||||
*r->sprt = primbuf->sprt;
|
||||
#ifdef VERSION_PSP
|
||||
if (prim->priority < 0 || prim->priority >= 0x200) {
|
||||
prim->priority = 0x1FF;
|
||||
}
|
||||
#endif
|
||||
addPrim(&r->ot[prim->priority * OT_MULT], r->sprt);
|
||||
r->sprt++;
|
||||
g_GpuUsage.sp++;
|
||||
if ((primType & 0x10) == 0 &&
|
||||
g_GpuUsage.drawModes < MAX_DRAW_MODES) {
|
||||
tpage = prim->tpage + (prim->drawMode & 0x60);
|
||||
SetDrawMode(r->dr, 0, dtd, tpage, rect);
|
||||
addPrim(&r->ot[prim->priority], r->dr);
|
||||
SetDrawMode(
|
||||
r->dr, 0, dtd,
|
||||
prim->tpage + (prim->drawMode & 0x60), rect);
|
||||
#ifdef VERSION_PSP
|
||||
if (prim->priority < 0 || prim->priority >= 0x200) {
|
||||
prim->priority = 0x1FF;
|
||||
}
|
||||
#endif
|
||||
addPrim(&r->ot[prim->priority * OT_MULT], r->dr);
|
||||
r->dr++;
|
||||
g_GpuUsage.drawModes++;
|
||||
}
|
||||
@ -2162,31 +2213,45 @@ void RenderPrimitives(void) {
|
||||
if (g_GpuUsage.env < MAX_ENV_COUNT) {
|
||||
env = *(DR_ENV**)&prim->r1;
|
||||
if (prim->drawMode & DRAW_UNK_1000) {
|
||||
sp80 = g_CurrentBuffer->draw.ofs[0];
|
||||
*(s16*)&env->code[2] = sp80;
|
||||
*(s16*)&env->code[7] = sp80;
|
||||
drawOfs = g_CurrentBuffer->draw.ofs[0];
|
||||
#ifndef VERSION_PSP
|
||||
*(s16*)&env->code[2] = drawOfs;
|
||||
*(s16*)&env->code[7] = drawOfs;
|
||||
#endif
|
||||
#ifdef VERSION_PSP
|
||||
*(s16*)&env->code[3] = drawOfs;
|
||||
*(s16*)&env->code[1] = drawOfs;
|
||||
#endif
|
||||
}
|
||||
if (prim->drawMode & DRAW_UNK_800) {
|
||||
__builtin_memcpy(
|
||||
&sp18, &g_CurrentBuffer->draw, sizeof(DRAWENV));
|
||||
sp18.isbg = 0;
|
||||
SetDrawEnv(env, &sp18);
|
||||
drawEnv = g_CurrentBuffer->draw;
|
||||
drawEnv.isbg = 0;
|
||||
SetDrawEnv(env, &drawEnv);
|
||||
}
|
||||
__builtin_memcpy(r->env, env, sizeof(DR_ENV));
|
||||
*r->env = *env;
|
||||
#ifndef VERSION_PSP
|
||||
if (prim->drawMode & DRAW_UNK_1000) {
|
||||
env = r->env;
|
||||
*(s16*)&env->code[0] += sp80;
|
||||
*(s16*)&env->code[1] += sp80;
|
||||
*(s16*)&env->code[0] += drawOfs;
|
||||
*(s16*)&env->code[1] += drawOfs;
|
||||
}
|
||||
addPrim(&r->ot[prim->priority], r->env);
|
||||
#endif
|
||||
#ifdef VERSION_PSP
|
||||
if (prim->priority < 0 || prim->priority >= 0x200) {
|
||||
prim->priority = 0x1FF;
|
||||
}
|
||||
#endif
|
||||
addPrim(&r->ot[prim->priority * OT_MULT], r->env);
|
||||
r->env++;
|
||||
g_GpuUsage.env++;
|
||||
}
|
||||
break;
|
||||
}
|
||||
var_v0 = primType & 0x10;
|
||||
var_a1 = var_v0 != 0;
|
||||
if (primType & 0x10) {
|
||||
unkBool = true;
|
||||
} else {
|
||||
unkBool = false;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user