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ac-decomp/src/static/Famicom/ks_nes_draw.cpp
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#include "gx/GXEnum.h"
#include "gx/GXTexture.h"
#include "gx/GXVert.h"
#define FIX_SQRT_LINKAGE
#include "Famicom/ks_nes_draw.h"
#include "dolphin/gx.h"
#include "dolphin/PPCArch.h"
#include "_mem.h"
#include "dolphin/os.h"
u8 ksNesPaletteNormal[] = {
0xc2, 0x10, 0x80, 0x17, 0x98, 0x17, 0xc0, 0x14, 0xdc, 0x0d, 0xd8, 0x03, 0xd8, 0x00, 0xc8, 0x80, 0xbc, 0xa0, 0x80,
0xe0, 0x81, 0x21, 0x80, 0xe4, 0x80, 0xac, 0x80, 0x00, 0x80, 0x00, 0x80, 0x00, 0xe7, 0x39, 0x81, 0x7f, 0xa0, 0xff,
0xd8, 0xd9, 0xfc, 0xd5, 0xfc, 0xcb, 0xfc, 0xc3, 0xe9, 0x20, 0xe1, 0x80, 0x9d, 0xe0, 0x8e, 0x02, 0x82, 0x4c, 0x82,
0x18, 0x88, 0x42, 0x80, 0x00, 0x80, 0x00, 0xff, 0xff, 0x82, 0x5f, 0xb6, 0x1f, 0xe9, 0xbf, 0xfd, 0xd9, 0xfd, 0xb3,
0xfd, 0xeb, 0xfe, 0x4b, 0xfe, 0x86, 0xd2, 0xe0, 0xab, 0x6d, 0xa7, 0x55, 0x83, 0x7f, 0xb1, 0x8c, 0x80, 0x00, 0x80,
0x00, 0xff, 0xff, 0xc2, 0xff, 0xde, 0xff, 0xea, 0xff, 0xfe, 0xfd, 0xfe, 0xf9, 0xff, 0x16, 0xff, 0x35, 0xff, 0x74,
0xe7, 0x93, 0xd7, 0xb6, 0xd7, 0xdd, 0xdb, 0xbf, 0xef, 0x7b, 0x80, 0x00, 0x80, 0x00,
};
void ksNesDrawInit(ksNesCommonWorkObj* wp) {
Mtx44 mtx;
Vec v1 = { 0.f, 0.f, 800.f };
Vec v3 = { 0.f, 0.f, -100.f };
Vec v2 = { 0.f, 1.f, 0.f };
GXInvalidateTexAll();
GXInvalidateVtxCache();
GXSetClipMode(GX_CLIP_DISABLE);
GXSetPixelFmt(GX_PF_RGB8_Z24, GX_ZC_LINEAR);
GXSetCopyFilter(GX_FALSE, NULL, GX_FALSE, NULL);
GXSetZMode(GX_FALSE, GX_ALWAYS, GX_FALSE);
GXSetZTexture(GX_ZT_DISABLE, GX_TF_Z8, 0);
GXSetZCompLoc(GX_FALSE);
GXSetColorUpdate(GX_TRUE);
GXSetTevSwapModeTable(GX_TEV_SWAP0, GX_CH_RED, GX_CH_GREEN, GX_CH_BLUE, GX_CH_ALPHA);
GXSetTevSwapMode(GX_TEVSTAGE0, GX_TEV_SWAP0, GX_TEV_SWAP0);
GXSetTevSwapMode(GX_TEVSTAGE1, GX_TEV_SWAP0, GX_TEV_SWAP0);
GXSetTevSwapMode(GX_TEVSTAGE2, GX_TEV_SWAP0, GX_TEV_SWAP0);
GXSetTevSwapMode(GX_TEVSTAGE3, GX_TEV_SWAP0, GX_TEV_SWAP0);
C_MTXOrtho(mtx, 0, -480.f, 0.f, 640.f, 0.f, 2000.f);
GXSetProjection(mtx, GX_ORTHOGRAPHIC);
C_MTXLookAt(wp->draw_ctx.draw_mtx, &v1, &v2, &v3);
}
void ksNesDrawEnd() {
GXSetClipMode(GX_CLIP_ENABLE);
GXSetZCompLoc(GX_TRUE);
GXSetNumIndStages(0);
GXSetTevDirect(GX_TEVSTAGE0);
GXSetTevDirect(GX_TEVSTAGE1);
GXSetTevDirect(GX_TEVSTAGE2);
GXSetAlphaCompare(GX_ALWAYS, 0, GX_AOP_AND, GX_ALWAYS, 0);
GXSetTevSwapModeTable(GX_TEV_SWAP0, GX_CH_RED, GX_CH_GREEN, GX_CH_BLUE, GX_CH_ALPHA);
GXSetTevSwapMode(GX_TEVSTAGE0, GX_TEV_SWAP0, GX_TEV_SWAP0);
GXSetTevSwapMode(GX_TEVSTAGE1, GX_TEV_SWAP0, GX_TEV_SWAP0);
GXSetTevSwapMode(GX_TEVSTAGE2, GX_TEV_SWAP0, GX_TEV_SWAP0);
GXSetTevSwapMode(GX_TEVSTAGE3, GX_TEV_SWAP0, GX_TEV_SWAP0);
GXSetTexCoordScaleManually(GX_TEXCOORD0, GX_FALSE, 0, 0);
GXSetTexCoordScaleManually(GX_TEXCOORD1, GX_FALSE, 0, 0);
}
void ksNesDrawClearEFBFirst(ksNesCommonWorkObj* wp) {
DCFlushRange(wp->draw_ctx.post_process_lut, sizeof(wp->draw_ctx.post_process_lut));
GXSetNumChans(1);
GXSetNumTexGens(0);
GXSetNumTevStages(1);
GXSetNumIndStages(0);
GXSetTevDirect(GX_TEVSTAGE0);
GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR0A0);
GXSetTevOp(GX_TEVSTAGE0, GX_PASSCLR);
GXSetChanCtrl(GX_COLOR0A0, GX_FALSE, GX_SRC_REG, GX_SRC_VTX, 0, GX_DF_NONE, GX_AF_NONE);
GXSetAlphaCompare(GX_ALWAYS, 0, GX_AOP_AND, GX_ALWAYS, 0);
GXSetBlendMode(GX_BM_LOGIC, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
GXClearVtxDesc();
GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
GXSetVtxDesc(GX_VA_CLR0, GX_DIRECT);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_CLR_RGB, GX_RGBA4, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
GXSetCurrentMtx(0);
GXLoadPosMtxImm(wp->draw_ctx.draw_mtx, 0);
GXBegin(GX_QUADS, GX_VTXFMT0, 4);
{
GXPosition2s16(128, -128);
GXColor1u32(0x00ff0000);
GXPosition2s16(384, -128);
GXColor1u32(0x00000000);
GXPosition2s16(384, -384);
GXColor1u32(0x0000ff00);
GXPosition2s16(128, -384);
GXColor1u32(0x00000000);
}
GXEnd();
}
void ksNesDrawMakeBGIndTex(ksNesCommonWorkObj* wp, u32 mmc3) {
u32 trigger_col = mmc3 ? 9 : 0x7fff;
u32 CHR_flag_xor = wp->chr_to_i8_buf_size <= CHR_TO_I8_BUF_SIZE ? (wp->chr_to_i8_buf_size >> 13) : 0x80;
u32 row;
u32 col;
for (row = 8; row < 236; row++) {
u32 scanline_ctrl0 = wp->draw_ctx.ppu_scanline_regs[row].vram_addr_y;
u32 scanline_ctrl1 = wp->draw_ctx.ppu_scanline_regs[row].vram_addr_coarse_x;
u32 mask;
u32 nibble_acc; // @bug - uninitialized
u8* patternPtrBase = (u8*)wp->draw_ctx.ppu_scanline_regs[row].chr_bank_bg;
u32 tile_byte;
u32 palette_bits;
u32 dst_idx;
u8* nametable_p;
mask = mask = (scanline_ctrl0 & 0x04) ? CHR_flag_xor : 0; // bruh
for (col = 0; col < 34; col++) {
if (col == trigger_col) {
patternPtrBase -= 8;
}
nametable_p = wp->draw_ctx.ppu_scanline_regs[row].nametable_ptrs[((scanline_ctrl1 >> 8) & 1)];
if (((s32)nametable_p) >= 0) {
nibble_acc = (((u32)nametable_p) & 3) | (nibble_acc << 4);
tile_byte = (((u32)nametable_p) >> 8) & 0xFF;
} else {
nibble_acc = (((nametable_p[0x3C0 + ((scanline_ctrl0 & 0xE0) >> 2) + ((scanline_ctrl1 & 0xE0) >> 5)] >> ((((scanline_ctrl1 & 0x10) >> 3) | (scanline_ctrl0 & 0x10) >> 2))) & 3) & 0x0F) | ((nibble_acc << 4));
tile_byte = nametable_p[((scanline_ctrl0 & 0xF8) << 2) + ((scanline_ctrl1 & 0xF8) >> 3)];
}
palette_bits = patternPtrBase[((u8)tile_byte >> 6) | ((wp->draw_ctx.ppu_scanline_regs[row].ppu_ctrl & 0x10) >> 2)];
// issue is here
wp->draw_ctx.bg_tile_index_texture[(((col & 0x3C) * 8) + ((col & 3) * 2) + ((row >> 2) * 288) + ((row & 3) * 8)) + 0] = (((palette_bits & 1) << 6) | (tile_byte & 0x3F)) - (col & 1);
wp->draw_ctx.bg_tile_index_texture[(((col & 0x3C) * 8) + ((col & 3) * 2) + ((row >> 2) * 288) + ((row & 3) * 8)) + 1] = (palette_bits >> 1) ^ mask;
if ((col & 1) != 0) {
wp->draw_ctx.bg_palette_attr_texture[((col >> 1) & 3) + (col & 0x38) * 4 + ((row & 7) * 4 + (row >> 3) * 160)] = nibble_acc;
}
scanline_ctrl1 += 8;
}
}
DCFlushRangeNoSync(wp->draw_ctx.bg_tile_index_texture, sizeof(wp->draw_ctx.bg_tile_index_texture));
DCFlushRangeNoSync(wp->draw_ctx.bg_palette_attr_texture, sizeof(wp->draw_ctx.bg_palette_attr_texture));
}
void ksNesDrawMakeBGIndTexMMC5(ksNesCommonWorkObj* wp, ksNesStateObj* sp) {
u32 banks_mask = sp->chr_banks & 0x1FC;
u32 row;
u32 col;
for (row = 8; row < 236; row++) {
u32 tile_byte;
u32 scanline_ctrl0 = wp->draw_ctx.ppu_scanline_regs[row].vram_addr_y;
u32 scanline_ctrl1 = wp->draw_ctx.ppu_scanline_regs[row].vram_addr_coarse_x;
u32 nibble_acc; // @bug - uninitialized
u8* patternPtrBase = (u8*)&wp->draw_ctx.ppu_scanline_regs[row].chr_bank_bg;
u32 palette_bits;
u32 tmp;
u8* nametable_p;
for (col = 0; col < 34; col++) {
nametable_p = wp->draw_ctx.ppu_scanline_regs[row].nametable_ptrs[((scanline_ctrl1 >> 8) & 1)];
if (((s32)nametable_p) >= 0) {
nibble_acc = (((u32)nametable_p) & 3) | (nibble_acc << 4);
tile_byte = (((u32)nametable_p) >> 8) & 0xFF;
} else {
nibble_acc = ((nametable_p[0x3C0 + ((scanline_ctrl0 & 0xE0) >> 2) + ((scanline_ctrl1 & 0xE0) >> 5)] >> ((((scanline_ctrl1 & 0x10) >> 3) | (scanline_ctrl0 & 0x10) >> 2))) & 3) | (nibble_acc << 4);
tile_byte = nametable_p[((scanline_ctrl0 & 0xF8) << 2) + ((scanline_ctrl1 & 0xF8) >> 3)];
}
// issue in this area too probably
if (wp->draw_ctx.ppu_scanline_regs[row].mmc5_ext_mode & 0x20) {
// MMC5 extension ram
nibble_acc = (nibble_acc & 0xF0) | (sp->mmc5_extension_ram[((scanline_ctrl1 >> 3) & 0x1F) + ((scanline_ctrl0 & 0xF8) << 2)] >> 6) & 0x0F;
palette_bits = ((sp->mmc5_extension_ram[((scanline_ctrl1 >> 3) & 0x1F) + ((scanline_ctrl0 & 0xF8) << 2)] << 2) & banks_mask) | ((u8)tile_byte >> 6);
} else {
tmp = ((wp->draw_ctx.ppu_scanline_regs[row].ppu_ctrl & 0x10) >> 2) | ((tile_byte >> 6) & 0x3);
palette_bits = ((wp->draw_ctx.ppu_scanline_regs[row].chr_bank_ext_upper_bg << (tmp + 1)) & 0x100) | (patternPtrBase[tmp]);
}
// issue is here
wp->draw_ctx.bg_tile_index_texture[(((col & 3) * 2) + ((col & 0x3C) * 8) + ((row >> 2) * 288) + ((row & 3) * 8)) + 0] = (((palette_bits & 1) << 6) | (tile_byte & 0x3F)) - (col & 1);
wp->draw_ctx.bg_tile_index_texture[(((col & 3) * 2) + ((col & 0x3C) * 8) + ((row >> 2) * 288) + ((row & 3) * 8)) + 1] = (palette_bits >> 1);
if ((col & 1) != 0) {
wp->draw_ctx.bg_palette_attr_texture[((col >> 1) & 3) + (col & 0x38) * 4 + ((row & 7) * 4 + (row >> 3) * 160)] = nibble_acc;
}
scanline_ctrl1 += 8;
}
}
DCFlushRangeNoSync(wp->draw_ctx.bg_tile_index_texture, sizeof(wp->draw_ctx.bg_tile_index_texture));
DCFlushRangeNoSync(wp->draw_ctx.bg_palette_attr_texture, sizeof(wp->draw_ctx.bg_palette_attr_texture));
}
#define ksNes_MMC2_LATCH_LO 0xFD // select chr bank 0/2
#define ksNes_MMC2_LATCH_HI 0xFE // select chr bank 1/3
void ksNesDrawMakeBGIndTexMMC2(ksNesCommonWorkObj* wp, u32 default_bank) {
u32 CHR_flag_xor = wp->chr_to_i8_buf_size <= CHR_TO_I8_BUF_SIZE ? (wp->chr_to_i8_buf_size >> 13) : 0x80;
u32 mmc2_bank = 0x02; // 0x02 = unset
u32 row;
u32 col;
u32 i;
int j;
i = 239;
do {
u32 scanline_ctrl1 = wp->draw_ctx.ppu_scanline_regs[i].vram_addr_coarse_x;
u32 idx = (wp->draw_ctx.ppu_scanline_regs[i].vram_addr_y & 0xF8) * 4;
for (j = 0; j < 34; j++) {
u32 val = (wp->draw_ctx.ppu_scanline_regs[i].nametable_ptrs[(scanline_ctrl1 >> 8) & 1] + ((scanline_ctrl1 >> 3) & 0x1F))[idx];
if (val == ksNes_MMC2_LATCH_HI) {
mmc2_bank = 0x00;
} else if (val == ksNes_MMC2_LATCH_LO) {
mmc2_bank = 0x01;
}
scanline_ctrl1 += 8;
}
} while (i-- != 0 && mmc2_bank == 0x02);
// If the bank is still unset, use the default bank
if (mmc2_bank == 0x02) {
mmc2_bank = default_bank;
}
for (i = 0; i < 8; i++) {
u32 scanline_ctrl1 = wp->draw_ctx.ppu_scanline_regs[i].vram_addr_coarse_x;
u32 idx = (wp->draw_ctx.ppu_scanline_regs[i].vram_addr_y & 0xF8) * 4;
for (j = 0; j < 34; j++) {
u32 val = (wp->draw_ctx.ppu_scanline_regs[i].nametable_ptrs[(scanline_ctrl1 >> 8) & 1] + ((scanline_ctrl1 >> 3) & 0x1F))[idx];
if (val == ksNes_MMC2_LATCH_HI) {
mmc2_bank = 0x00;
} else if (val == ksNes_MMC2_LATCH_LO) {
mmc2_bank = 0x01;
}
scanline_ctrl1 += 8;
}
}
for (row = 8; row < 236; row++) {
u32 scanline_ctrl0 = wp->draw_ctx.ppu_scanline_regs[row].vram_addr_y;
u32 scanline_ctrl1 = wp->draw_ctx.ppu_scanline_regs[row].vram_addr_coarse_x;
u32 mask;
u32 nibble_acc; // @bug - uninitialized
u8* patternPtrBase = wp->draw_ctx.ppu_scanline_regs[row].chr_bank_sprite;
u32 tile_byte;
u32 palette_bits;
u32 dst_idx;
u8* nametable_p;
mask = mask = (scanline_ctrl0 & 0x04) ? CHR_flag_xor : 0; // bruh
for (col = 0; col < 34; col++) {
nametable_p = wp->draw_ctx.ppu_scanline_regs[row].nametable_ptrs[((scanline_ctrl1 >> 8) & 1)];
if (((s32)nametable_p) >= 0) {
nibble_acc = (((u32)nametable_p) & 3) | (nibble_acc << 4);
tile_byte = (((u32)nametable_p) >> 8) & 0xFF;
} else {
nibble_acc = (((nametable_p[0x3C0 + ((scanline_ctrl0 & 0xE0) >> 2) + ((scanline_ctrl1 & 0xE0) >> 5)] >> ((((scanline_ctrl1 & 0x10) >> 3) | (scanline_ctrl0 & 0x10) >> 2))) & 3) & 0x0F) | ((nibble_acc << 4));
tile_byte = nametable_p[((scanline_ctrl0 & 0xF8) << 2) + ((scanline_ctrl1 & 0xF8) >> 3)];
if (tile_byte == ksNes_MMC2_LATCH_HI) {
palette_bits = patternPtrBase[(mmc2_bank) | ((wp->draw_ctx.ppu_scanline_regs[row].ppu_ctrl & 0x10) >> 2)] | 0x03;
mmc2_bank = 0x00;
goto set;
} else if (tile_byte == ksNes_MMC2_LATCH_LO) {
mmc2_bank = 0x01;
}
}
palette_bits = ((u8)tile_byte >> 6) | patternPtrBase[((mmc2_bank) | ((wp->draw_ctx.ppu_scanline_regs[row].ppu_ctrl & 0x10) >> 2))];
set:
// issue is here
wp->draw_ctx.bg_tile_index_texture[(((col & 0x3C) * 8) + ((col & 3) * 2) + ((row >> 2) * 288) + ((row & 3) * 8)) + 0] = (((palette_bits & 1) << 6) | (tile_byte & 0x3F)) - (col & 1);
wp->draw_ctx.bg_tile_index_texture[(((col & 0x3C) * 8) + ((col & 3) * 2) + ((row >> 2) * 288) + ((row & 3) * 8)) + 1] = (palette_bits >> 1) ^ mask;
if ((col & 1) != 0) {
wp->draw_ctx.bg_palette_attr_texture[((col >> 1) & 3) + (col & 0x38) * 4 + ((row & 7) * 4 + (row >> 3) * 160)] = nibble_acc;
}
scanline_ctrl1 += 8;
}
}
DCFlushRangeNoSync(wp->draw_ctx.bg_tile_index_texture, sizeof(wp->draw_ctx.bg_tile_index_texture));
DCFlushRangeNoSync(wp->draw_ctx.bg_palette_attr_texture, sizeof(wp->draw_ctx.bg_palette_attr_texture));
}
void ksNesDrawOBJSetupMMC2(ksNesCommonWorkObj* wp) {
u32 i;
u32 j;
u32 k;
memset(wp->draw_ctx.mmc2_scanline_latch_tiles, 0, sizeof(wp->draw_ctx.mmc2_scanline_latch_tiles));
for (i = 0; i < ARRAY_COUNT(wp->draw_ctx.OAMTable); i++) {
// ppu_scanline_regs is the scanline state, OAMTable is list of scanline triggers?
if (wp->draw_ctx.OAMTable[i].y_pos >= 236 || (wp->draw_ctx.OAMTable[i].tile_index != ksNes_MMC2_LATCH_HI && wp->draw_ctx.OAMTable[i].tile_index != ksNes_MMC2_LATCH_LO)) {
continue;
}
j = wp->draw_ctx.OAMTable[i].y_pos;
k = (((wp->draw_ctx.ppu_scanline_regs[j].ppu_ctrl >> 2) & 0x08) + 8) + j;
do {
wp->draw_ctx.mmc2_scanline_latch_tiles[j] = wp->draw_ctx.OAMTable[i].tile_index;
j++;
} while(j < k);
}
// _0200 is the scanline marker entries
for (i = 0, k = 0; i < ARRAY_COUNT(wp->draw_ctx.mmc2_scanline_latch_tiles); i++) {
if (wp->draw_ctx.mmc2_scanline_latch_tiles[i] == ksNes_MMC2_LATCH_HI) {
k = 0;
} else if (wp->draw_ctx.mmc2_scanline_latch_tiles[i] == ksNes_MMC2_LATCH_LO) {
k = 1;
}
if (k) {
wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[0] = wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[1] - 1;
wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[2] = wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[1] + 1;
wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[3] = wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[1] + 2;
} else {
wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[1] = wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[0] + 1;
wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[2] = wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[0] + 2;
wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[3] = wp->draw_ctx.ppu_scanline_regs[i].chr_bank_sprite[0] + 3;
}
}
}
void ksNesDrawBG(ksNesCommonWorkObj* wp, ksNesStateObj* sp) {
static const GXColor color_r_0xf0 = { 240, 0, 0, 0 };
static f32 indtexmtx_screen[2][3] = {
{0.5f, 0.0f, 0.0f}, // S offset = (Intensity from bg_tile_index_texture) × 0.5
{0.0f, 0.0625f, 0.0f}, // T offset = (Alpha from bg_tile_index_texture) × 0.0625 (1/16)
};
GXTexObj obj0;
GXTexObj obj1;
GXTexObj obj2;
u32 curline;
u32 cnt;
u32 color;
u32 x0;
u32 x1;
s16 y;
u32 i;
u32 j;
GXSetNumChans(1);
GXSetNumTexGens(2);
GXSetNumTevStages(3);
GXSetNumIndStages(1);
GXSetBlendMode(GX_BM_LOGIC, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
GXClearVtxDesc();
GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
GXSetVtxDesc(GX_VA_CLR0, GX_DIRECT);
GXSetVtxDesc(GX_VA_TEX0, GX_DIRECT);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_CLR_RGB, GX_RGBA4, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_CLR_RGBA, GX_RGBX8, 10);
GXInitTexObj(&obj0, wp->draw_ctx.bg_palette_attr_texture, 40, 256, GX_TF_I4, GX_CLAMP, GX_REPEAT, 0);
GXInitTexObjLOD(&obj0, GX_NEAR, GX_NEAR, 0.0, 0.0, 0.0, 0, 0, GX_ANISO_1);
GXLoadTexObj(&obj0, GX_TEXMAP0);
GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);
GXSetTexCoordScaleManually(GX_TEXCOORD0, GX_TRUE, 128, 1025);
GXSetTexCoordBias(GX_TEXCOORD0, GX_FALSE, GX_FALSE);
GXSetTevDirect(GX_TEVSTAGE0);
GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL);
GXSetTevColor(GX_TEVREG0, color_r_0xf0);
GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_TEXC, GX_CC_ZERO, GX_CC_C0, GX_CC_TEXC);
GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_SUB, GX_TB_ZERO, GX_CS_SCALE_1, 1, GX_TEVPREV);
GXInitTexObj(&obj1, wp->draw_ctx.bg_tile_index_texture, 36, 256, GX_TF_IA8, GX_CLAMP, GX_CLAMP, 0);
GXInitTexObjLOD(&obj1, GX_NEAR, GX_NEAR, 0.0, 0.0, 0.0, 0, 0, GX_ANISO_1);
GXLoadTexObj(&obj1, GX_TEXMAP1);
GXSetTexCoordGen(GX_TEXCOORD1, GX_TG_MTX2x4, GX_TG_TEX0, GX_IDENTITY);
GXSetTexCoordScaleManually(GX_TEXCOORD1, GX_TRUE, 1024, 1025);
GXSetTexCoordBias(GX_TEXCOORD1, GX_FALSE, GX_FALSE);
GXSetIndTexOrder(GX_INDTEXSTAGE0, GX_TEXCOORD1, GX_TEXMAP1);
GXSetIndTexCoordScale(GX_INDTEXSTAGE0, GX_ITS_8, GX_ITS_1);
GXSetIndTexMtx(GX_ITM_0, indtexmtx_screen, 36);
GXSetTevIndirect(GX_TEVSTAGE1, GX_INDTEXSTAGE0, GX_ITF_8, GX_ITB_NONE, GX_ITM_0, GX_ITW_16, GX_ITW_0, GX_FALSE, GX_FALSE, GX_ITBA_OFF);
GXSetTevOrder(GX_TEVSTAGE1, GX_TEXCOORD1, GX_TEXMAP2, GX_COLOR_NULL);
GXSetTevColorIn(GX_TEVSTAGE1, GX_CC_TEXC, GX_CC_ZERO, GX_CC_ZERO, GX_CC_CPREV);
GXSetTevColorOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, 1, GX_TEVPREV);
GXSetTevAlphaIn(GX_TEVSTAGE1, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
GXSetTevAlphaOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, 1, GX_TEVPREV);
GXSetTevDirect(GX_TEVSTAGE2);
GXSetTevOrder(GX_TEVSTAGE2, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR0A0);
GXSetChanCtrl(GX_COLOR0A0, 0, GX_SRC_VTX, GX_SRC_VTX, GX_LIGHT_NULL, GX_DF_NONE, GX_AF_NONE);
GXSetTevColorIn(GX_TEVSTAGE2, GX_CC_RASC, GX_CC_ZERO, GX_CC_ZERO, GX_CC_CPREV);
GXSetTevColorOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, 1, GX_TEVPREV);
GXSetTevAlphaIn(GX_TEVSTAGE2, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_APREV);
GXSetTevAlphaOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, 1, GX_TEVPREV);
GXSetAlphaCompare(GX_GREATER, 0, GX_AOP_AND, GX_ALWAYS, 0);
GXSetLineWidth(6, GX_TO_ZERO);
for (i = 0; i < 8; i++) {
if (sp->ppu_render_latches[i] != 0) {
if (sp->mapper == KS_NES_MAPPER_MMC5) {
GXInitTexObj(&obj2, wp->chr_to_u8_bufp + (wp->chr_to_i8_buf_size >> 3) * i, 1024, wp->chr_to_i8_buf_size >> 13, GX_TF_I8, GX_MIRROR, GX_CLAMP, 0);
GXInitTexObjLOD(&obj2, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, GX_FALSE, GX_FALSE, GX_ANISO_1);
GXLoadTexObj(&obj2, GX_TEXMAP2);
} else if ((i & 1) == 0) {
if (wp->chr_to_i8_buf_size > CHR_TO_I8_BUF_SIZE) {
GXInitTexObj(&obj2, wp->chr_to_u8_bufp + 0x20000 * (i & 6), 1024, 256, GX_TF_I8, GX_MIRROR, GX_CLAMP, 0);
} else {
GXInitTexObj(&obj2, wp->chr_to_u8_bufp + (wp->chr_to_i8_buf_size >> 3) * (i & 6), 1024, wp->chr_to_i8_buf_size >> 12, GX_TF_I8, GX_MIRROR, GX_CLAMP, 0);
}
GXInitTexObjLOD(&obj2, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, GX_FALSE, GX_FALSE, GX_ANISO_1);
GXLoadTexObj(&obj2, GX_TEXMAP2);
}
cnt = 0;
curline = sp->ppu_render_latches[i + 8];
j = curline;
do {
if ((wp->draw_ctx.ppu_scanline_regs[j].ppumask_flags & KS_NES_PPU_MASK_SHOW_BG) != 0 && j >= 8 && j < 236) {
cnt += 2;
}
j = wp->draw_ctx.ppu_scanline_regs[j].fine_x_and_next;
} while (j != 0);
if (cnt != 0) {
GXBegin(GX_LINES, GX_VTXFMT0, cnt);
do {
if ((wp->draw_ctx.ppu_scanline_regs[curline].ppumask_flags & KS_NES_PPU_MASK_SHOW_BG) != 0 && curline >= 8 && curline < 236) {
if ((wp->draw_ctx.ppu_scanline_regs[curline].ppumask_flags & KS_NES_PPU_MASK_SHOW_BG_LEFT) == 0) {
x0 = 0x80 + 8;
x1 = (wp->draw_ctx.ppu_scanline_regs[curline].vram_addr_coarse_x & 0x07) + 8;
} else {
x0 = 0x80 - (wp->draw_ctx.ppu_scanline_regs[curline].vram_addr_coarse_x & 0x07);
x1 = 0;
}
color = (wp->draw_ctx.ppu_scanline_regs[curline].ppu_ctrl & 0xC0) << 24;
GXPosition2s16(x0, -0x81 - curline);
GXColor1u32(color);
GXTexCoord2u16(x1, curline);
GXPosition2s16(x0 + 0x100 + 8, -0x81 - curline);
GXColor1u32(color);
GXTexCoord2u16(x1 + 0x100 + 8, curline);
}
curline = wp->draw_ctx.ppu_scanline_regs[curline].fine_x_and_next;
} while (curline != 0);
GXEnd();
}
}
}
cnt = 0;
for (i = 8; i < 236; i++) {
if ((wp->draw_ctx.ppu_scanline_regs[i].ppumask_flags & KS_NES_PPU_MASK_SHOW_BG) == 0) {
cnt += 2;
}
}
if (cnt != 0) {
GXSetNumTexGens(0);
GXSetNumTevStages(1);
GXSetNumIndStages(0);
GXClearVtxDesc();
GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
GXSetVtxDesc(GX_VA_CLR0, GX_DIRECT);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_CLR_RGB, GX_RGBA4, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
GXSetTevDirect(GX_TEVSTAGE0);
GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR0A0);
GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_RASC, GX_CC_ZERO, GX_CC_ZERO, GX_CC_ZERO);
GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, 1, GX_TEVPREV);
GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO);
GXSetTevAlphaOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, 1, GX_TEVPREV);
GXSetAlphaCompare(GX_ALWAYS, 0, GX_AOP_AND, GX_ALWAYS, 0);
GXBegin(GX_LINES, GX_VTXFMT0, cnt);
for (i = 8; i < 236; i++) {
if ((wp->draw_ctx.ppu_scanline_regs[i].ppumask_flags & KS_NES_PPU_MASK_SHOW_BG) == 0) {
s16 y = -0x81 - i;
u32 color = (wp->draw_ctx.ppu_scanline_regs[i].ppu_ctrl & 0xC0) << 24;
GXPosition2s16(0x80, y);
GXColor1u32(color);
GXPosition2s16(0x180, y);
GXColor1u32(color);
}
}
GXEnd();
}
}
u32 ksNesDrawMakeOBJBlankVtxList(ksNesCommonWorkObj* wp) {
u32 ret = 0;
u32 comparison_mask = KS_NES_PPU_MASK_SPRITES_COMBINED;
int i;
for (i = 8; i < ARRAY_COUNT(wp->draw_ctx.ppu_scanline_regs); i++) {
int bMask = wp->draw_ctx.ppu_scanline_regs[i].ppumask_flags & KS_NES_PPU_MASK_SPRITES_COMBINED;
if (bMask != comparison_mask && ((bMask != 0) || (comparison_mask != KS_NES_PPU_MASK_SHOW_SPRITES_LEFT)) &&
(bMask != KS_NES_PPU_MASK_SHOW_SPRITES_LEFT || comparison_mask != 0)) {
if ((ret & 1) != 0) {
wp->draw_ctx.scanline_y_coords[ret] = i - wp->_004C[ret + 19];
ret++;
}
if ((comparison_mask == KS_NES_PPU_MASK_SPRITES_COMBINED) || (wp->draw_ctx.ppu_scanline_regs[i].ppumask_flags & KS_NES_PPU_MASK_SHOW_SPRITES) == 0) {
wp->draw_ctx.scanline_y_coords[ret++] = i;
}
comparison_mask = wp->draw_ctx.ppu_scanline_regs[i].ppumask_flags & KS_NES_PPU_MASK_SPRITES_COMBINED;
}
}
if (ret & 1) {
wp->draw_ctx.scanline_y_coords[ret] = i - wp->_004C[ret + 19];
ret++;
}
return ret;
}
u32 ksNesDrawMakeOBJAppearVtxList(ksNesCommonWorkObj* wp) {
u32 ret = 0;
u32 comparison_mask = 0;
int i;
for (i = 8; i < ARRAY_COUNT(wp->draw_ctx.ppu_scanline_regs); i++) {
int bMask = wp->draw_ctx.ppu_scanline_regs[i].ppumask_flags & KS_NES_PPU_MASK_SPRITES_COMBINED;
if (bMask != comparison_mask && ((bMask != 0) || (comparison_mask != KS_NES_PPU_MASK_SHOW_SPRITES_LEFT)) &&
(bMask != KS_NES_PPU_MASK_SHOW_SPRITES_LEFT || comparison_mask != 0)) {
if ((ret & 1) != 0) {
wp->draw_ctx.scanline_y_coords[ret] = i - wp->_004C[ret + 19];
ret++;
}
if ((wp->draw_ctx.ppu_scanline_regs[i].ppumask_flags & KS_NES_PPU_MASK_SHOW_SPRITES)) {
wp->draw_ctx.scanline_y_coords[ret++] = i;
}
comparison_mask = wp->draw_ctx.ppu_scanline_regs[i].ppumask_flags & KS_NES_PPU_MASK_SPRITES_COMBINED;
}
}
if (ret & 1) {
wp->draw_ctx.scanline_y_coords[ret] = i - wp->_004C[ret + 19];
ret++;
}
return ret;
}
void ksNesDrawOBJ(ksNesCommonWorkObj* wp, ksNesStateObj* state, u32 sprite_priority_pass) {
u32 size = wp->chr_to_i8_buf_size <= CHR_TO_I8_BUF_SIZE ? wp->chr_to_i8_buf_size : CHR_TO_I8_BUF_SIZE;
// int i;
GXTexObj GStack_7c;
GXTexObj GStack_9c;
GXTexObj GStack_bc;
u32 i;
u32 j;
// check the pass is for foreground sprites
if (sprite_priority_pass == 0) {
for (i = 0; i < KS_NES_SCANLINE_SPRITE_OVERDRAW_COUNT; i++) {
wp->draw_ctx.sprite_scanline_limit[i] = i < KS_NES_SCANLINE_COUNT ? ((state->frame_flags & KS_NES_FLAG_NINES_OVER_MODE) ? 255 : KS_NES_SPRITES_PER_SCANLINE) : 0;
// Disable sprites if the ppu's config on this scanline doesn't have sprites enabled.
if ((wp->draw_ctx.ppu_scanline_regs[i].ppumask_flags & KS_NES_PPU_MASK_SHOW_SPRITES) == 0) {
wp->draw_ctx.sprite_scanline_limit[i] = 0;
}
}
if (state->prg_size == 0x40000 && memcmp(state->prgromp + 0x3ffe9, "MARIO 3", 7) == 0) {
for (i = 0; i < ARRAY_COUNT(wp->draw_ctx.ppu_scanline_regs); i++) {
// This is a hack for SMB3 where the emulator was drawing sprites (OBJ) on transition screens because
// it isn't accurate enough. So, when this specific bank setup is detected on the MMC3 chip's alternate
// banks, sprites are entirely disabled by setting the per-scanline limit to 0.
if (wp->draw_ctx.ppu_scanline_regs[i].chr_bank_bg_mmc3[1] == 0x7e7e7e7e) {
wp->draw_ctx.sprite_scanline_limit[i] = 0;
}
}
}
memset(wp->draw_ctx.sprite_quad_data, 0, sizeof(wp->draw_ctx.sprite_quad_data));
int b;
int _c;
int a;
int _j;
ksNesSpriteQuadData* quad_p = wp->draw_ctx.sprite_quad_data;
for (i = 0; i < 0x100; i += 4) {
_j = 8; // 8x8 sprite
if (wp->draw_ctx.ppu_scanline_regs[wp->draw_ctx.OAMTable[i].y_pos].ppu_ctrl & KS_NES_PPU_CTRL_SPRITE_SIZE) {
_j = 16; // 8x16 sprite
}
a = 0;
if (wp->draw_ctx.OAMTable[i].attributes & KS_NES_OAM_ATTR_FLIP_VERTICAL) {
b = _j << 2;
_c = -4;
} else {
b = 0;
_c = 4;
}
for (j = 0; j < _j; j++) {
if (wp->draw_ctx.sprite_scanline_limit[wp->draw_ctx.OAMTable[i].y_pos + j] != 0) {
wp->draw_ctx.sprite_scanline_limit[wp->draw_ctx.OAMTable[i].y_pos + j]--;
if ((a & 2) == 0) {
quad_p->y_and_v_pairs[a] = j + wp->draw_ctx.OAMTable[i].y_pos;
quad_p->y_and_v_pairs[a + 1] = b;
a += 2;
}
} else if ((a & 2) != 0) {
quad_p->y_and_v_pairs[a] = j + wp->draw_ctx.OAMTable[i].y_pos;
quad_p->y_and_v_pairs[a + 1] = b;
a += 2;
}
b += _c;
}
if ((a & 2) != 0) {
quad_p->y_and_v_pairs[a] = j + wp->draw_ctx.OAMTable[i].y_pos;
quad_p->y_and_v_pairs[a + 1] = b;
a += 2;
}
wp->draw_ctx.sprite_vertex_count[i >> 2] = a;
quad_p++;
}
}
GXSetNumChans(1);
GXSetNumTexGens(2);
GXSetNumTevStages(3);
GXSetNumIndStages(2);
GXSetBlendMode(GX_BM_LOGIC, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
GXClearVtxDesc();
GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
GXSetVtxDesc(GX_VA_CLR0, GX_DIRECT);
GXSetVtxDesc(GX_VA_TEX0, GX_DIRECT);
GXSetVtxDesc(GX_VA_TEX1, GX_DIRECT);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_CLR_RGB, GX_RGBA4, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_CLR_RGBA, GX_RGBX8, 10);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX1, GX_CLR_RGBA, GX_RGBX8, 10);
GXInitTexObj(&GStack_7c, wp->chr_to_u8_bufp, 0x400, (u16)(size >> 10), GX_TF_I8, GX_MIRROR, GX_CLAMP, 0);
GXInitTexObjLOD(&GStack_7c, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, 0, 0, GX_ANISO_1);
GXLoadTexObj(&GStack_7c, GX_TEXMAP0);
#ifndef BUGFIXES
GXInitTexObj(&GStack_9c, wp->draw_ctx.sprite_chr_bank_lut, 8, 4, GX_TF_IA8, GX_CLAMP, GX_CLAMP, 0);
#else
GXInitTexObj(&GStack_9c, wp->draw_ctx.sprite_chr_bank_lut, 5, 4, GX_TF_IA8, GX_CLAMP, GX_CLAMP, 0);
#endif
GXInitTexObjLOD(&GStack_9c, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, 0, 0, GX_ANISO_1);
GXLoadTexObj(&GStack_9c, GX_TEXMAP1);
GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, 0x3c);
GXSetTexCoordScaleManually(GX_TEXCOORD0, GX_TRUE, 0x100, 0x101);
GXSetTexCoordBias(GX_TEXCOORD0, 0, 0);
GXSetIndTexOrder(GX_INDTEXSTAGE0, GX_TEXCOORD0, GX_TEXMAP1);
GXSetIndTexCoordScale(GX_INDTEXSTAGE0, GX_ITS_8, GX_ITS_1);
GXSetTevIndirect(GX_TEVSTAGE0, GX_INDTEXSTAGE0, GX_ITF_8, GX_ITB_NONE, GX_ITM_OFF, GX_ITW_OFF, GX_ITW_OFF, GX_FALSE,
GX_FALSE, GX_ITBA_OFF);
GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEX_DISABLE, GX_COLOR0A0);
GXSetChanCtrl(GX_COLOR0A0, GX_FALSE, GX_SRC_VTX, GX_SRC_VTX, 0, GX_DF_NONE, GX_AF_NONE);
GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_RASC, GX_CC_ZERO, GX_CC_ZERO, GX_CC_ZERO);
GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVREG2);
GXInitTexObj(&GStack_bc, wp->draw_ctx.sprite_indirect_lut, 4, 16, GX_TF_IA8, GX_CLAMP, GX_CLAMP, 0);
GXInitTexObjLOD(&GStack_bc, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, 0, 0, GX_ANISO_1);
GXLoadTexObj(&GStack_bc, GX_TEXMAP2);
GXSetTexCoordGen(GX_TEXCOORD1, GX_TG_MTX2x4, GX_TG_TEX1, 0x3c);
GXSetTexCoordScaleManually(GX_TEXCOORD1, GX_TRUE, 0x100, 0x101);
GXSetTexCoordBias(GX_TEXCOORD1, 0, 0);
GXSetIndTexOrder(GX_INDTEXSTAGE1, GX_TEXCOORD1, GX_TEXMAP2);
GXSetIndTexCoordScale(GX_INDTEXSTAGE1, GX_ITS_8, GX_ITS_1);
{
// u32 i;
for (i = 0; size > (0x8000 << i); i++) {}
static f32 indtexmtx_obj[2][3] = { { 0.5f, 0.f, 0.f }, { 0.f, 0.0625f, 0.f } };
indtexmtx_obj[0][0] = 0.5f / (i >= 4 ? (1 << (i - 3)) : 1);
indtexmtx_obj[1][1] = 0.5f / (i <= 2 ? (1 << (3 - i)) : 1);
GXSetIndTexMtx(GX_ITM_0, indtexmtx_obj, 36 + (i < 4 ? 0 : i - 3));
}
GXSetTevIndirect(GX_TEVSTAGE1, GX_INDTEXSTAGE1, GX_ITF_8, GX_ITB_NONE, GX_ITM_0, GX_ITW_OFF, GX_ITW_0, GX_TRUE,
GX_FALSE, GX_ITBA_OFF);
GXSetTevOrder(GX_TEVSTAGE1, GX_TEXCOORD1, GX_TEXMAP0, GX_COLOR_NULL);
GXSetTevColorIn(GX_TEVSTAGE1, GX_CC_C2, GX_CC_ZERO, GX_CC_ZERO, GX_CC_TEXC);
GXSetTevColorOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevAlphaIn(GX_TEVSTAGE1, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
GXSetTevAlphaOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevDirect(GX_TEVSTAGE2);
GXSetTevOrder(GX_TEVSTAGE2, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR_NULL);
static const GXColor color_thres = { 255, 1, 0, 0 };
GXSetTevColor(GX_TEVREG0, color_thres);
GXSetTevColorIn(GX_TEVSTAGE2, GX_CC_C0, GX_CC_C2, GX_CC_CPREV, GX_CC_ZERO);
GXSetTevColorOp(GX_TEVSTAGE2, GX_TEV_COMP_GR16_GT, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevAlphaIn(GX_TEVSTAGE2, GX_CA_APREV, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO);
GXSetTevAlphaOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetAlphaCompare(GX_GREATER, 0, GX_AOP_AND, GX_ALWAYS, 0);
u32 n_verts = 0;
for (i = 0; i < ARRAY_COUNT(wp->draw_ctx.OAMTable); i++) {
// draw sprites
if (sprite_priority_pass == 0 || (wp->draw_ctx.OAMTable[i].attributes & KS_NES_OAM_ATTR_PRIORITY) != 0) {
n_verts += wp->draw_ctx.sprite_vertex_count[i];
}
}
// u32 idx = 0x100-4;
u32 idx2 = ARRAY_COUNT(wp->draw_ctx.OAMTable) - 1;
GXBegin(GX_QUADS, GX_VTXFMT0, n_verts);
while (TRUE) {
ksNesSpriteQuadData* quad_p = &wp->draw_ctx.sprite_quad_data[idx2];
u8* quad_pairs = quad_p->y_and_v_pairs;
// u32 scanline_idx = wp->draw_ctx.OAMTable[idx];
u32 tile_index = wp->draw_ctx.OAMTable[idx2].tile_index;
u32 flags2;
if (wp->draw_ctx.ppu_scanline_regs[wp->draw_ctx.OAMTable[idx2].y_pos].ppu_ctrl & KS_NES_PPU_CTRL_SPRITE_SIZE) {
// 8x16 sprite
flags2 = wp->draw_ctx.ppu_scanline_regs[wp->draw_ctx.OAMTable[idx2].y_pos].chr_bank_sprite[(tile_index >> 6) | ((tile_index & KS_NES_OAM_TILE_BANK) << 2)];
tile_index &= KS_NES_OAM_TILE_IDX;
} else {
// 8x8 sprite
flags2 = wp->draw_ctx.ppu_scanline_regs[wp->draw_ctx.OAMTable[idx2].y_pos].chr_bank_sprite[(tile_index >> 6) | ((wp->draw_ctx.ppu_scanline_regs[wp->draw_ctx.OAMTable[idx2].y_pos].ppu_ctrl >> 1) & 4)];
}
// u32 flags3 = wp->draw_ctx.OAMTable[idx + 2];
u32 oam_attrs = wp->draw_ctx.OAMTable[idx2].attributes;
u32 x0 = wp->draw_ctx.OAMTable[idx2].x_pos + 128;
u32 x1 = wp->draw_ctx.OAMTable[idx2].x_pos + 136;
u32 color = ((wp->draw_ctx.OAMTable[idx2].x_pos & 3) * 16 + 4) * 0x01000000;
if (sprite_priority_pass != 0) {
// We're in the BG pass so skip if the sprite is supposed to be drawn in front of the BG
if ((oam_attrs & KS_NES_OAM_ATTR_PRIORITY) == 0) {
goto loop_condition;
}
} else {
// We're in the FG pass
if ((oam_attrs & KS_NES_OAM_ATTR_PRIORITY) != 0) {
color |= 0xFF010000;
}
}
u32 s0;
u32 t0;
u32 s1;
u32 s1_2;
u32 t1;
u32 t1_2;
u32 temp;
// u32 j;
s0 = 0;
t0 = (flags2 & 0xFE) * 2; // select chr bank offset
temp = ((tile_index & 0x3F) * 0x20) | ((flags2 & 0x01) * 0x800); // flags2 bit0 determines the pattern table
if (wp->draw_ctx.OAMTable[idx2].attributes & KS_NES_OAM_ATTR_FLIP_HORIZONTAL) {
s1 = temp + 32;
s1_2 = temp;
} else {
s1 = temp;
s1_2 = temp + 32;
}
for (j = 0; j < wp->draw_ctx.sprite_vertex_count[idx2]; j += 4) {
u32 y0 = -129 - quad_pairs[0];
t1 = quad_pairs[1];
u32 y1 = -129 - quad_pairs[2];
t1_2 = quad_pairs[3];
quad_pairs += 4;
GXPosition2s16(x0, y0);
GXColor1u32(color);
GXTexCoord2u16(s0, t0);
GXTexCoord2u16(s1, t1);
GXPosition2s16(x1, y0);
GXColor1u32(color);
GXTexCoord2u16(s0, t0);
GXTexCoord2u16(s1_2, t1);
GXPosition2s16(x1, y1);
GXColor1u32(color);
GXTexCoord2u16(s0, t0);
GXTexCoord2u16(s1_2, t1_2);
GXPosition2s16(x0, y1);
GXColor1u32(color);
GXTexCoord2u16(s0, t0);
GXTexCoord2u16(s1, t1_2);
}
loop_condition:
if (idx2 == 0) {
break;
}
// idx -= 4;
idx2--;
}
GXEnd();
if (sprite_priority_pass != 0) {
u32 n = ksNesDrawMakeOBJBlankVtxList(wp);
if (n != 0) {
GXSetNumChans(1);
GXSetNumTexGens(0);
GXSetNumTevStages(1);
GXSetNumIndStages(0);
GXSetBlendMode(GX_BM_LOGIC, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
GXClearVtxDesc();
GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
GXSetVtxDesc(GX_VA_CLR0, GX_DIRECT);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XY, GX_S16, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
GXSetTevDirect(GX_TEVSTAGE0);
GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR0A0);
GXSetChanCtrl(GX_COLOR0A0, GX_FALSE, GX_SRC_VTX, GX_SRC_VTX, GX_LIGHT_NULL, GX_DF_NONE, GX_AF_NONE);
GXSetTevOp(GX_TEVSTAGE0, GX_PASSCLR);
GXSetAlphaCompare(GX_ALWAYS, 0, GX_AOP_AND, GX_ALWAYS, 0);
GXBegin(GX_QUADS, GX_VTXFMT0, n * 2);
for (u32 i = 0; i < n; i += 2) {
s16 x1 = (wp->draw_ctx.ppu_scanline_regs[wp->draw_ctx.scanline_y_coords[i]].ppumask_flags & KS_NES_PPU_MASK_SPRITES_COMBINED) == KS_NES_PPU_MASK_SHOW_SPRITES ? 136 : 384;
GXPosition2s16(128, -128 - wp->draw_ctx.scanline_y_coords[i]);
GXColor1u32(0x00000000);
GXPosition2s16(x1, -128 - wp->draw_ctx.scanline_y_coords[i]);
GXColor1u32(0x00000000);
GXPosition2s16(x1, -128 - wp->draw_ctx.scanline_y_coords[i] - wp->draw_ctx.scanline_y_coords[i + 1]);
GXColor1u32(0x00000000);
GXPosition2s16(128, -128 - wp->draw_ctx.scanline_y_coords[i] - wp->draw_ctx.scanline_y_coords[i + 1]);
GXColor1u32(0x00000000);
}
GXEnd();
}
}
}
void ksNesDrawOBJMMC5(ksNesCommonWorkObj* wp, ksNesStateObj* sp, u32 sprite_priority_pass) {
static const GXColor color_thres = { 255, 1, 0, 0 };
// clang-format off
static f32 indtexmtx_obj[2][3] = {
{ 0.5f, 0.0f, 0.0f },
{ 0.0f, 0.0625f, 0.0f },
};
// clang-format on
GXTexObj obj3;
GXTexObj obj;
GXTexObj obj2;
size_t var_r25 = wp->chr_to_i8_buf_size;
u32 sft;
u32 var_r3;
u32 i, j;
u32 var_r15;
u32 var_r24;
u32 x;
u32 x1, x2, y1, y2;
u32 u1, u2, v;
u32 clr;
u32 oam_attrs;
u8 *work;
GXSetNumChans(1);
GXSetNumTexGens(2);
GXSetNumTevStages(3);
GXSetNumIndStages(2);
GXSetBlendMode(GX_BM_LOGIC, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
GXClearVtxDesc();
GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
GXSetVtxDesc(GX_VA_CLR0, GX_DIRECT);
GXSetVtxDesc(GX_VA_TEX0, GX_DIRECT);
GXSetVtxDesc(GX_VA_TEX1, GX_DIRECT);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XY, GX_S16, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_U16, 10);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX1, GX_TEX_ST, GX_U16, 10);
#ifndef BUGFIXES
GXInitTexObj(&obj, wp->draw_ctx.sprite_chr_bank_lut, 8, 4, GX_TF_IA8, GX_CLAMP, GX_CLAMP, 0);
#else
GXInitTexObj(&GStack_9c, wp->draw_ctx.sprite_chr_bank_lut, 5, 4, GX_TF_IA8, GX_CLAMP, GX_CLAMP, 0);
#endif
GXInitTexObjLOD(&obj, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, GX_FALSE, GX_FALSE, GX_ANISO_1);
GXLoadTexObj(&obj, GX_TEXMAP1);
GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, 60);
GXSetTexCoordScaleManually(GX_TEXCOORD0, GX_TRUE, 0x100, 0x101);
GXSetTexCoordBias(GX_TEXCOORD0, 0, 0);
GXSetIndTexOrder(GX_INDTEXSTAGE0, GX_TEXCOORD0, GX_TEXMAP1);
GXSetIndTexCoordScale(GX_INDTEXSTAGE0, GX_ITS_8, GX_ITS_1);
GXSetTevIndirect(GX_TEVSTAGE0, GX_INDTEXSTAGE0, GX_ITF_8, GX_ITB_NONE, GX_ITM_OFF, GX_ITW_OFF, GX_ITW_OFF, GX_FALSE, GX_FALSE, GX_ITBA_OFF);
GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEX_DISABLE, GX_COLOR0A0);
GXSetChanCtrl(GX_COLOR0A0, GX_FALSE, GX_SRC_VTX, GX_SRC_VTX, 0, GX_DF_NONE, GX_AF_NONE);
GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_RASC, GX_CC_ZERO, GX_CC_ZERO, GX_CC_ZERO);
GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVREG2);
GXInitTexObj(&obj2, wp->draw_ctx.sprite_indirect_lut, 4, 16, GX_TF_IA8, GX_CLAMP, GX_CLAMP, 0);
GXInitTexObjLOD(&obj2, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, GX_FALSE, GX_FALSE, GX_ANISO_1);
GXLoadTexObj(&obj2, GX_TEXMAP2);
GXSetTexCoordGen(GX_TEXCOORD1, GX_TG_MTX2x4, GX_TG_TEX1, 60);
GXSetTexCoordScaleManually(GX_TEXCOORD1, GX_TRUE, 0x100, 0x101);
GXSetTexCoordBias(GX_TEXCOORD1, 0, 0);
GXSetIndTexOrder(GX_INDTEXSTAGE1, GX_TEXCOORD1, GX_TEXMAP2);
GXSetIndTexCoordScale(GX_INDTEXSTAGE1, GX_ITS_8, GX_ITS_1);
sft = 0;
while (var_r25 > (0x8000 << sft)) {
sft++;
}
indtexmtx_obj[0][0] = 0.5f / (sft >= 4 ? (1 << (sft - 3)) : 1);
indtexmtx_obj[1][1] = 0.5f / (sft <= 2 ? (1 << (3 - sft)) : 1);
GXSetIndTexMtx(GX_ITM_0, indtexmtx_obj, 36 + (sft < 4 ? 0 : sft - 3));
GXSetTevIndirect(GX_TEVSTAGE1, GX_INDTEXSTAGE1, GX_ITF_8, GX_ITB_NONE, GX_ITM_0, GX_ITW_OFF, GX_ITW_0, GX_TRUE, GX_FALSE, GX_ITBA_OFF);
GXSetTevOrder(GX_TEVSTAGE1, GX_TEXCOORD1, GX_TEXMAP0, GX_COLOR_NULL);
GXSetTevColorIn(GX_TEVSTAGE1, GX_CC_C2, GX_CC_ZERO, GX_CC_ZERO, GX_CC_TEXC);
GXSetTevColorOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevAlphaIn(GX_TEVSTAGE1, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_TEXA);
GXSetTevAlphaOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevDirect(GX_TEVSTAGE2);
GXSetTevOrder(GX_TEVSTAGE2, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR_NULL);
GXSetTevColor(GX_TEVREG0, color_thres);
GXSetTevColorIn(GX_TEVSTAGE2, GX_CC_C0, GX_CC_C2, GX_CC_CPREV, GX_CC_ZERO);
GXSetTevColorOp(GX_TEVSTAGE2, GX_TEV_COMP_GR16_GT, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevAlphaIn(GX_TEVSTAGE2, GX_CA_APREV, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO);
GXSetTevAlphaOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetAlphaCompare(GX_GREATER, 0, GX_AOP_AND, GX_ALWAYS, 0);
var_r24 = 0;
for (i = 0; i < ARRAY_COUNT(wp->draw_ctx.OAMTable); i++) {
if (sprite_priority_pass == 0 || (wp->draw_ctx.OAMTable[i].attributes & KS_NES_PPU_CTRL_SPRITE_SIZE) != 0) {
var_r24 += (wp->draw_ctx.ppu_scanline_regs[wp->draw_ctx.OAMTable[i].y_pos].ppu_ctrl & KS_NES_PPU_CTRL_SPRITE_SIZE) ? 8 : 4;
}
}
for (i = 0; i < 8; i += 4) {
GXInitTexObj(&obj3, &wp->chr_to_u8_bufp[(var_r25 >> 3) * i], 1024, var_r25 >> 11, GX_TF_I8, GX_MIRROR, GX_CLAMP, 0);
GXInitTexObjLOD(&obj3, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, GX_FALSE, GX_FALSE, GX_ANISO_1);
GXLoadTexObj(&obj3, GX_TEXMAP0);
// why is this loop value loaded here???
j = (ARRAY_COUNT(wp->draw_ctx.OAMTable) - 1) * sizeof(wp->draw_ctx.OAMTable[0]);
GXBegin(GX_QUADS, GX_VTXFMT0, var_r24);
while (TRUE) {
u8 scanline = ((u8*)wp->draw_ctx.OAMTable)[j + 0];
u32 tile_idx = ((u8*)wp->draw_ctx.OAMTable)[j + 1]; // loading tile index & bank
u32 size_mode = (wp->draw_ctx.ppu_scanline_regs[scanline].ppu_ctrl >> 5) & 1; // sprite size mode, 0 = 8x8, 1 = 8x16
u32 palette_bits;
u32 tmp;
if (size_mode != 0) {
// 8x16 sprite
palette_bits = (tile_idx >> 6) | ((tile_idx & KS_NES_OAM_TILE_BANK) << 2);
palette_bits = ((wp->draw_ctx.ppu_scanline_regs[scanline].chr_bank_ext_upper_sprite << (palette_bits + 1)) & 0x100) | ((wp->draw_ctx.ppu_scanline_regs[scanline].chr_bank_sprite[palette_bits]));
tile_idx &= KS_NES_OAM_TILE_IDX;
} else {
// 8x8 sprite
palette_bits = (tile_idx >> 6) | (wp->draw_ctx.ppu_scanline_regs[scanline].ppu_ctrl >> 1) & 4;
palette_bits = ((wp->draw_ctx.ppu_scanline_regs[scanline].chr_bank_ext_upper_sprite << (palette_bits + 1)) & 0x100) | ((wp->draw_ctx.ppu_scanline_regs[scanline].chr_bank_sprite[palette_bits]));
}
oam_attrs = ((u8*)wp->draw_ctx.OAMTable)[j + 2]; // OAM attributes
x1 = ((u8*)wp->draw_ctx.OAMTable)[j + 3] + 128; // OAM X position
x2 = ((u8*)wp->draw_ctx.OAMTable)[j + 3] + 128 + 8; // OAM X position + 8
clr = ((((oam_attrs & KS_NES_OAM_ATTR_PALETTE_MASK) * 16) + 4) | (wp->draw_ctx.ppu_scanline_regs[scanline].ppu_ctrl & (KS_NES_PPU_CTRL_NMI_ENABLE | KS_NES_PPU_CTRL_MASTER_SLAVE))) << 24;
if (sprite_priority_pass != 0) {
if ((oam_attrs & KS_NES_OAM_ATTR_PRIORITY) == 0) {
goto loop_point;
}
} else if ((oam_attrs & KS_NES_OAM_ATTR_PRIORITY) != 0) {
clr |= 0xFF010000;
}
v = (palette_bits << 1) & 0x3FC;
tmp = ((tile_idx << 5) & 0x7E0) | ((palette_bits << 0xB) & 0x800 & ~0x7E0);
if (oam_attrs & KS_NES_OAM_ATTR_FLIP_HORIZONTAL) {
u2 = tmp;
u1 = tmp + 0x20;
} else {
u1 = tmp;
u2 = tmp + 0x20;
}
if ((oam_attrs & KS_NES_OAM_ATTR_FLIP_VERTICAL) != 0) {
tmp = (-0x81 - scanline) + i;
y1 = tmp - 8;
y2 = tmp - 4;
if (var_r24 != 0) {
u1 += 0x20;
u2 += 0x20;
}
} else {
tmp = (-0x81 - scanline) - i;
y1 = tmp;
y2 = tmp - 4;
}
do {
GXPosition2s16(x1, y1);
GXColor1u32(clr);
GXTexCoord2u16(0, v);
GXTexCoord2u16(u1, 0);
GXPosition2s16(x2, y1);
GXColor1u32(clr);
GXTexCoord2u16(0, v);
GXTexCoord2u16(u2, 0);
GXPosition2s16(x2, y2);
GXColor1u32(clr);
GXTexCoord2u16(0, v);
GXTexCoord2u16(u2, 0x10);
GXPosition2s16(x1, y2);
GXColor1u32(clr);
GXTexCoord2u16(0, v);
GXTexCoord2u16(u1, 0x10);
y1 -= 8;
y2 -= 8;
if ((oam_attrs & KS_NES_OAM_ATTR_FLIP_VERTICAL) != 0) {
u1 -= 0x20;
u2 -= 0x20;
} else {
u1 += 0x20;
u2 += 0x20;
}
} while (var_r24-- != 0);
loop_point:
if (j == 0) break;
j -= sizeof(wp->draw_ctx.OAMTable[0]);
}
GXEnd();
}
if (sprite_priority_pass == 0) return;
u32 quads = ksNesDrawMakeOBJBlankVtxList(wp);
if (quads == 0) return;
GXSetNumChans(1);
GXSetNumTexGens(0);
GXSetNumTevStages(1);
GXSetNumIndStages(0);
GXSetBlendMode(GX_BM_LOGIC, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
GXClearVtxDesc();
GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
GXSetVtxDesc(GX_VA_CLR0, GX_DIRECT);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XY, GX_S16, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
GXSetTevDirect(GX_TEVSTAGE0);
GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR0A0);
GXSetChanCtrl(GX_COLOR0A0, GX_FALSE, GX_SRC_VTX, GX_SRC_VTX, 0, GX_DF_NONE, GX_AF_NONE);
GXSetTevOp(GX_TEVSTAGE0, GX_PASSCLR);
GXSetAlphaCompare(GX_ALWAYS, 0, GX_AOP_AND, GX_ALWAYS, 0);
GXBegin(GX_QUADS, GX_VTXFMT0, quads << 1);
for (i = 0; i < quads; i += 2) {
work = (u8*)wp + i; // wp->draw_ctx.scanline_y_coords[i, i + 1] (top & bottom)
x = 0x180;
if ((wp->draw_ctx.ppu_scanline_regs[(u8)((u8*)wp + i)[0x60]].ppumask_flags & KS_NES_PPU_MASK_SPRITES_COMBINED) == KS_NES_PPU_MASK_SHOW_SPRITES) {
x = 0x88;
}
GXPosition2s16(0x80, -128 - x);
GXColor1u32(0);
GXPosition2s16(x, -128 - work[0x60]);
GXColor1u32(0);
GXPosition2s16(x, -128 - work[0x60] - work[0x61]);
GXColor1u32(0);
GXPosition2s16(0x80, -128 - work[0x60] - work[0x61]);
GXColor1u32(0);
}
GXEnd();
}
void ksNesDrawFlushEFBToRed8(u8* buf) {
static const GXColor black = { 0, 0, 0, 0 };
GXSetTexCopySrc(0x80, 0x88, 0x100, 0xe4);
GXSetTexCopyDst(0x100, 0xe4, GX_CTF_R8, GX_FALSE);
GXSetCopyClear(black, 0xffffff);
GXCopyTex(buf, GX_FALSE);
GXPixModeSync();
GXInvalidateTexAll();
}
void ksNesDrawOBJI8ToEFB(ksNesCommonWorkObj* wp, u8* buf) {
GXTexObj obj;
u32 i;
s32 u;
u8* work;
u32 cnt;
GXSetNumChans(0);
GXSetNumTexGens(1);
GXSetNumTevStages(1);
GXSetNumIndStages(0);
GXSetBlendMode(GX_BM_LOGIC, GX_BL_SRCALPHA, GX_BL_INVSRCALPHA, GX_LO_COPY);
GXClearVtxDesc();
GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
GXSetVtxDesc(GX_VA_TEX0, GX_DIRECT);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XY, GX_S16, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_U16, 8);
GXInitTexObj(&obj, (void*)buf, 256, 228, GX_TF_I8, GX_CLAMP, GX_CLAMP, 0);
GXInitTexObjLOD(&obj, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, GX_FALSE, GX_FALSE, GX_ANISO_1);
GXLoadTexObj(&obj, GX_TEXMAP0);
GXSetTexCoordGen(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, 60);
GXSetTexCoordScaleManually(GX_TEXCOORD0, GX_TRUE, 0x100, 0x100);
GXSetTexCoordBias(GX_TEXCOORD0, 0, 0);
GXSetTevDirect(GX_TEVSTAGE0);
GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL);
GXSetTevOp(GX_TEVSTAGE0, GX_REPLACE);
GXSetAlphaCompare(GX_GREATER, 0, GX_AOP_AND, GX_ALWAYS, 0);
cnt = ksNesDrawMakeOBJAppearVtxList(wp);
if (cnt == 0) return;
GXBegin(GX_QUADS, GX_VTXFMT0, cnt * 2);
for (i = 0; i < cnt; i += 2) {
work = (u8*)wp + i; // if it works...
u = (wp->draw_ctx.ppu_scanline_regs[(u8)((u8*)wp)[i + 0x60]].ppumask_flags & KS_NES_PPU_MASK_SPRITES_COMBINED) == KS_NES_PPU_MASK_SHOW_SPRITES ? 8 : 0;
GXPosition2s16(u + 0x80, -128 - work[0x60]);
GXTexCoord2u16(u, work[0x60] - 8);
GXPosition2s16(0x180, -128 - work[0x60]);
GXTexCoord2u16(0x100, work[0x60] - 8);
GXPosition2s16(0x180, -128 - work[0x60] - work[0x61]);
GXTexCoord2u16(0x100, work[0x60] + work[0x61] - 8);
GXPosition2s16(u + 0x80, -128 - work[0x60] - work[0x61]);
GXTexCoord2u16(u, work[0x60] + work[0x61] - 8);
}
GXEnd();
}
void ksNesDrawEmuResult(ksNesCommonWorkObj* wp) {
static f32 indtexmtx[2][3] = {
{ 0.5f, 0.0f, 0.0f },
{ 0.0f, 0.0f, 0.0f }
};
static const GXColor black = { 0, 0, 0, 0 };
static const GXColor color0 = { 0x3A, 0x3A, 0x3A, 0x00 };
static const GXColor color1 = { 0x71, 0x71, 0x71, 0x00 };
static const GXColor color2 = { 0x15, 0x15, 0x15, 0x00 };
u32 cnt;
u32 i;
u32 color_effects_state;
u8 y;
u32 val;
u32 clr;
u8 *work;
GXTexObj obj;
GXTexObj obj2;
cnt = 0;
i = 8;
color_effects_state = 0xFF;
for (; i < ARRAY_COUNT(wp->draw_ctx.ppu_scanline_regs); i++) {
val = wp->draw_ctx.ppu_scanline_regs[i].ppumask_flags & KS_NES_PPU_MASK_COLOR_EFFECTS;
if (val != color_effects_state) {
color_effects_state = val;
if ((cnt & 1) != 0) {
wp->draw_ctx.scanline_y_coords[cnt++] = i - 8;
}
wp->draw_ctx.scanline_y_coords[cnt++] = i - 8;
}
}
if ((cnt & 1) != 0) {
wp->draw_ctx.scanline_y_coords[cnt++] = i - 8;
}
wp->draw_ctx.scanline_y_coords[cnt] = 0xFF;
GXInitTexObj(&obj2, wp->result_bufp, KS_NES_WIDTH, KS_NES_HEIGHT, GX_TF_I8, GX_CLAMP, GX_CLAMP, 0);
GXInitTexObjLOD(&obj2, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, GX_FALSE, GX_FALSE, GX_ANISO_1);
GXLoadTexObj(&obj2, GX_TEXMAP1);
// Sampling LUT for applying color effects like color emphasis (I think)
GXInitTexObj(&obj, wp->draw_ctx.post_process_lut, 256, 4, GX_TF_RGB5A3, GX_CLAMP, GX_CLAMP, 0);
GXInitTexObjLOD(&obj, GX_NEAR, GX_NEAR, 0.0f, 0.0f, 0.0f, GX_FALSE, GX_FALSE, GX_ANISO_1);
GXLoadTexObj(&obj, GX_TEXMAP0);
GXSetTexCoordGen2(GX_TEXCOORD0, GX_TG_MTX2x4, GX_TG_TEX0, 60, GX_FALSE, 125);
GXSetTexCoordScaleManually(GX_TEXCOORD0, GX_TRUE, 256, 256);
GXSetTexCoordBias(GX_TEXCOORD0, 0, 0);
GXSetIndTexOrder(GX_INDTEXSTAGE0, GX_TEXCOORD0, GX_TEXMAP1);
GXSetIndTexCoordScale(GX_INDTEXSTAGE0, GX_ITS_1, GX_ITS_1);
GXSetIndTexMtx(GX_ITM_0, indtexmtx, 1);
GXSetTevIndirect(GX_TEVSTAGE0, GX_INDTEXSTAGE0, GX_ITF_8, GX_ITB_NONE, GX_ITM_0, GX_ITW_0, GX_ITW_0, GX_FALSE, GX_FALSE, GX_ITBA_OFF);
GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL);
GXSetAlphaCompare(GX_ALWAYS, 0, GX_AOP_AND, GX_ALWAYS, 0);
cnt = 0;
for (i = 0; wp->draw_ctx.scanline_y_coords[i] != 0xFF; i += 2) {
val = wp->draw_ctx.ppu_scanline_regs[wp->draw_ctx.scanline_y_coords[i]].ppumask_flags;
if ((val & KS_NES_PPU_MASK_COLOR_EFFECTS) == 0) {
cnt += 4; // has color and no color emphasis
}
}
if (cnt != 0) {
GXSetNumChans(0);
GXSetNumTexGens(1);
GXSetNumTevStages(1);
GXSetNumIndStages(1);
GXClearVtxDesc();
GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
GXSetVtxDesc(GX_VA_TEX0, GX_DIRECT);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XY, GX_S16, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_U16, 8);
GXSetTevOp(GX_TEVSTAGE0, GX_REPLACE);
GXBegin(GX_QUADS, GX_VTXFMT0, cnt);
do {
i -= 2;
work = ((u8*)wp + i);
val = wp->draw_ctx.ppu_scanline_regs[work[0x60]].ppumask_flags & KS_NES_PPU_MASK_COLOR_EFFECTS;
if (val == 0) {
GXPosition2s16(KS_NES_WIDTH + KS_NES_CENTER_X, -KS_NES_CENTER_Y - work[0x60]);
GXTexCoord2u16(256, work[0x60]);
GXPosition2s16(KS_NES_WIDTH + KS_NES_CENTER_X, -KS_NES_CENTER_Y - work[0x61]);
GXTexCoord2u16(256, work[0x61]);
GXPosition2s16(KS_NES_CENTER_X, -KS_NES_CENTER_Y - work[0x61]);
GXTexCoord2u16(0, work[0x61]);
GXPosition2s16(KS_NES_CENTER_X, -KS_NES_CENTER_Y - work[0x60]);
GXTexCoord2u16(0, work[0x60]);
}
} while (i != 0);
}
cnt = 0;
for (i = 0; wp->draw_ctx.scanline_y_coords[i] != 0xFF; i += 2) {
val = wp->draw_ctx.ppu_scanline_regs[wp->draw_ctx.scanline_y_coords[i]].ppumask_flags;
if ((val & KS_NES_PPU_MASK_COLOR_EFFECTS) != 0) {
cnt += 4;
}
}
if (cnt != 0) {
GXSetNumChans(1);
GXSetNumTexGens(1);
GXSetNumTevStages(4);
GXSetNumIndStages(1);
GXClearVtxDesc();
GXSetVtxDesc(GX_VA_POS, GX_DIRECT);
GXSetVtxDesc(GX_VA_CLR0, GX_DIRECT);
GXSetVtxDesc(GX_VA_TEX0, GX_DIRECT);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_POS, GX_POS_XY, GX_S16, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_CLR0, GX_CLR_RGBA, GX_RGBA8, 0);
GXSetVtxAttrFmt(GX_VTXFMT0, GX_VA_TEX0, GX_TEX_ST, GX_U16, 8);
GXSetTevIndirect(GX_TEVSTAGE0, GX_INDTEXSTAGE0, GX_ITF_8, GX_ITB_NONE, GX_ITM_0, GX_ITW_0, GX_ITW_0, GX_FALSE, GX_FALSE, GX_ITBA_OFF);
GXSetTevOrder(GX_TEVSTAGE0, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL);
GXSetTevIndirect(GX_TEVSTAGE1, GX_INDTEXSTAGE0, GX_ITF_8, GX_ITB_NONE, GX_ITM_0, GX_ITW_0, GX_ITW_0, GX_FALSE, GX_FALSE, GX_ITBA_OFF);
GXSetTevOrder(GX_TEVSTAGE1, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL);
GXSetTevIndirect(GX_TEVSTAGE2, GX_INDTEXSTAGE0, GX_ITF_8, GX_ITB_NONE, GX_ITM_0, GX_ITW_0, GX_ITW_0, GX_FALSE, GX_FALSE, GX_ITBA_OFF);
GXSetTevOrder(GX_TEVSTAGE2, GX_TEXCOORD0, GX_TEXMAP0, GX_COLOR_NULL);
GXSetTevDirect(GX_TEVSTAGE3);
GXSetTevOrder(GX_TEVSTAGE3, GX_TEXCOORD_NULL, GX_TEXMAP_NULL, GX_COLOR0A0);
GXSetChanCtrl(GX_COLOR0A0, GX_FALSE, GX_SRC_VTX, GX_SRC_VTX, 0, GX_DF_NONE, GX_AF_NONE);
GXSetTevSwapModeTable(GX_TEV_SWAP1, GX_CH_RED, GX_CH_RED, GX_CH_RED, GX_CH_ALPHA);
GXSetTevSwapModeTable(GX_TEV_SWAP2, GX_CH_GREEN, GX_CH_GREEN, GX_CH_GREEN, GX_CH_ALPHA);
GXSetTevSwapModeTable(GX_TEV_SWAP3, GX_CH_BLUE, GX_CH_BLUE, GX_CH_BLUE, GX_CH_ALPHA);
GXSetTevSwapMode(GX_TEVSTAGE0, GX_TEV_SWAP0, GX_TEV_SWAP1);
GXSetTevSwapMode(GX_TEVSTAGE1, GX_TEV_SWAP0, GX_TEV_SWAP2);
GXSetTevSwapMode(GX_TEVSTAGE2, GX_TEV_SWAP0, GX_TEV_SWAP3);
GXSetTevSwapMode(GX_TEVSTAGE3, GX_TEV_SWAP0, GX_TEV_SWAP0);
GXSetTevColorIn(GX_TEVSTAGE0, GX_CC_ZERO, GX_CC_TEXC, GX_CC_C0, GX_CC_ZERO);
GXSetTevColorIn(GX_TEVSTAGE1, GX_CC_ZERO, GX_CC_TEXC, GX_CC_C1, GX_CC_CPREV);
GXSetTevColorIn(GX_TEVSTAGE2, GX_CC_ZERO, GX_CC_TEXC, GX_CC_C2, GX_CC_CPREV);
GXSetTevColorIn(GX_TEVSTAGE3, GX_CC_RASC, GX_CC_ZERO, GX_CC_ZERO, GX_CC_CPREV);
GXSetTevColorOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevColorOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevColorOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevColorOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevAlphaIn(GX_TEVSTAGE0, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO);
GXSetTevAlphaIn(GX_TEVSTAGE1, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO);
GXSetTevAlphaIn(GX_TEVSTAGE2, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO);
GXSetTevAlphaIn(GX_TEVSTAGE3, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO, GX_CA_ZERO);
GXSetTevAlphaOp(GX_TEVSTAGE0, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevAlphaOp(GX_TEVSTAGE1, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevAlphaOp(GX_TEVSTAGE2, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevAlphaOp(GX_TEVSTAGE3, GX_TEV_ADD, GX_TB_ZERO, GX_CS_SCALE_1, GX_TRUE, GX_TEVPREV);
GXSetTevColor(GX_TEVREG0, color0);
GXSetTevColor(GX_TEVREG1, color1);
GXSetTevColor(GX_TEVREG2, color2);
GXBegin(GX_QUADS, GX_VTXFMT0, cnt);
do {
i -= 2;
work = (u8*)wp + i; // wp->draw_ctx.scanline_y_coords[i, i + 1] (top & bottom)
if ((wp->draw_ctx.ppu_scanline_regs[work[0x60]].ppumask_flags & KS_NES_PPU_MASK_COLOR_EFFECTS) != 0) {
clr = 0x2F2F2F00;
if ((wp->draw_ctx.ppu_scanline_regs[work[0x60]].ppumask_flags & KS_NES_PPU_MASK_EMPHASIZE_RED) != 0) {
clr += 0x10000000;
}
if ((wp->draw_ctx.ppu_scanline_regs[work[0x60]].ppumask_flags & KS_NES_PPU_MASK_EMPHASIZE_GREEN) != 0) {
clr += 0x00100000;
}
if ((wp->draw_ctx.ppu_scanline_regs[work[0x60]].ppumask_flags & KS_NES_PPU_MASK_EMPHASIZE_BLUE) != 0) {
clr += 0x00001000;
}
GXPosition2s16(KS_NES_WIDTH + KS_NES_CENTER_X, -KS_NES_CENTER_Y - work[0x60]);
GXColor1u32(clr);
GXTexCoord2u16(256, work[0x60]);
GXPosition2s16(KS_NES_WIDTH + KS_NES_CENTER_X, -KS_NES_CENTER_Y - work[0x61]);
GXColor1u32(clr);
GXTexCoord2u16(256, work[0x61]);
GXPosition2s16(KS_NES_CENTER_X, -KS_NES_CENTER_Y - work[0x61]);
GXColor1u32(clr);
GXTexCoord2u16(0, work[0x61]);
GXPosition2s16(KS_NES_CENTER_X, -KS_NES_CENTER_Y - work[0x60]);
GXColor1u32(clr);
GXTexCoord2u16(0, work[0x60]);
}
} while (i != 0);
}
GXSetTexCopySrc(KS_NES_CENTER_X, KS_NES_CENTER_Y, KS_NES_WIDTH, KS_NES_HEIGHT);
GXSetTexCopyDst(KS_NES_WIDTH, KS_NES_HEIGHT, GX_TF_RGB565, GX_FALSE);
GXSetCopyClear(black, 0xFFFFFF);
GXCopyTex(wp->result_bufp, GX_FALSE);
GXPixModeSync();
}
void ksNesDraw(ksNesCommonWorkObj* wp, ksNesStateObj* state) {
ksNesDrawInit(wp);
ksNesDrawClearEFBFirst(wp);
if (state->mapper == KS_NES_MAPPER_MMC2 || state->mapper == KS_NES_MAPPER_MMC4) {
ksNesDrawMakeBGIndTexMMC2(wp, state->mapper == KS_NES_MAPPER_MMC2 ? TRUE : FALSE);
ksNesDrawOBJSetupMMC2(wp);
} else if (state->mapper == KS_NES_MAPPER_MMC5) {
ksNesDrawMakeBGIndTexMMC5(wp, state);
} else {
ksNesDrawMakeBGIndTex(wp, state->mapper == KS_NES_MAPPER_MMC3 ? TRUE : FALSE);
}
PPCSync();
if (state->mapper == KS_NES_MAPPER_MMC5) {
ksNesDrawOBJMMC5(wp, state, 0);
} else {
ksNesDrawOBJ(wp, state, 0);
}
ksNesDrawFlushEFBToRed8(wp->result_bufp);
if (state->mapper == KS_NES_MAPPER_MMC5) {
ksNesDrawOBJMMC5(wp, state, 1);
} else {
ksNesDrawOBJ(wp, state, 1);
}
ksNesDrawBG(wp, state);
ksNesDrawOBJI8ToEFB(wp, wp->result_bufp);
ksNesDrawFlushEFBToRed8(wp->result_bufp);
ksNesDrawEmuResult(wp);
ksNesDrawEnd();
}
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