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DS(i): Reduce color LUT size from 128KB to 64KB

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This commit is contained in:
RocketRobz 2025-04-27 15:20:11 -06:00
parent 4654d4d756
commit d75fb987b8
3 changed files with 13 additions and 13 deletions
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10
nds/arm9/source/gfx.cpp
View File

@ -188,7 +188,7 @@ void GFX::loadSheets() {
}
bmpImageBuffer[1][i] = image[i*4]>>3 | (image[(i*4)+1]>>3)<<5 | (image[(i*4)+2]>>3)<<10 | BIT(15);
if (colorTable) {
bmpImageBuffer[1][i] = colorTable[bmpImageBuffer[1][i]];
bmpImageBuffer[1][i] = colorTable[bmpImageBuffer[1][i] % 0x8000];
}
if (charSpriteAlpha[i] == 255) {
bmpImageBuffer[0][i] = bmpImageBuffer[1][i];
@ -221,7 +221,7 @@ void GFX::loadSheets() {
}
bmpImageBuffer2[1][i] = image[i*4]>>3 | (image[(i*4)+1]>>3)<<5 | (image[(i*4)+2]>>3)<<10 | BIT(15);
if (colorTable) {
bmpImageBuffer2[1][i] = colorTable[bmpImageBuffer2[1][i]];
bmpImageBuffer2[1][i] = colorTable[bmpImageBuffer2[1][i] % 0x8000];
}
if (charSpriteAlpha[i] == 255) {
bmpImageBuffer2[0][i] = bmpImageBuffer2[1][i];
@ -308,8 +308,8 @@ void GFX::loadBgSprite(void) {
if (dsiFeatures()) {
swiWaitForVBlank(); // Prevent screen tearing
if (colorTable) {
dmaFillHalfWords(colorTable[0xFFFF], bgGetGfxPtr(bg2Main), 0x18000);
dmaFillHalfWords(colorTable[0xFFFF], bgGetGfxPtr(bg3Main), 0x18000);
dmaFillHalfWords(colorTable[0xFFFF % 0x8000], bgGetGfxPtr(bg2Main), 0x18000);
dmaFillHalfWords(colorTable[0xFFFF % 0x8000], bgGetGfxPtr(bg3Main), 0x18000);
} else {
dmaFillHalfWords(0xFFFF, bgGetGfxPtr(bg2Main), 0x18000);
dmaFillHalfWords(0xFFFF, bgGetGfxPtr(bg3Main), 0x18000);
@ -1301,7 +1301,7 @@ ITCM_CODE void GFX::loadCharSpriteMem(const int zoomIn, const bool* flipH) {
}
if (colorTable) {
fg = colorTable[fg];
fg = colorTable[fg % 0x8000];
}
int buffer = 0;

14
nds/arm9/source/gui.cpp
View File

@ -95,7 +95,7 @@ void applyColorLut(u16 *palette, int size) {
return;
}
for (int i = 0; i < size; i++) {
palette[i] = colorTable[palette[i]];
palette[i] = colorTable[palette[i] % 0x8000];
}
}
@ -103,7 +103,7 @@ void applyColorLut(u16 *palette, int size) {
void copyPalette16(u16 *dst, const u16 *src, int size) {
if (colorTable) {
for (int i = 0; i < size; i++) {
dst[i] = colorTable[src[i]];
dst[i] = colorTable[src[i] % 0x8000];
}
return;
}
@ -114,7 +114,7 @@ void copyPalette16(u16 *dst, const u16 *src, int size) {
void copyPalette(u16 *dst, const u16 *src, int size) {
if (colorTable) {
for (int i = 0; i < size/2; i++) {
dst[i] = colorTable[src[i]];
dst[i] = colorTable[src[i] % 0x8000];
}
return;
}
@ -149,14 +149,14 @@ void Gui::init(void) {
char colorLutPath[256];
sprintf(colorLutPath, "/_nds/colorLut/%s.lut", lutName);
if (getFileSize(colorLutPath) == 0x20000) {
colorTable = new u16[0x20000/sizeof(u16)];
if (getFileSize(colorLutPath) == 0x10000) {
colorTable = new u16[0x10000/sizeof(u16)];
file = fopen(colorLutPath, "rb");
fread(colorTable, 1, 0x20000, file);
fread(colorTable, 1, 0x10000, file);
fclose(file);
tonccpy(VRAM_D, colorTable, 0x20000); // Copy LUT to VRAM
tonccpy(VRAM_D, colorTable, 0x10000); // Copy LUT to VRAM
delete[] colorTable; // Free up RAM space
colorTable = VRAM_D;
}

2
nds/arm9/source/utils/fontHandler.cpp
View File

@ -28,7 +28,7 @@ void fontInit() {
};
if (colorTable) {
for (int i = 1; i < 4; i++) {
palette[i] = colorTable[palette[i]];
palette[i] = colorTable[palette[i] % 0x8000];
}
}
tonccpy(BG_PALETTE, palette, sizeof(palette));