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Textures.cpp
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#include <windows.h>
#include <memory.h>
#include "OpenGL.h"
#include "Textures.h"
#include "GBI.h"
#include "RSP.h"
#include "gDP.h"
#include "gSP.h"
#include "N64.h"
#include "CRC.h"
#include "convert.h"
#include "2xSAI.h"
#include "FrameBuffer.h"
#include "xBRZ/xbrz.h"
TextureCache cache;
using GetTexelFunc = u32(*)(u64* src, u16 x, u16 i, u8 palette);
inline u32 GetNone(u64* src, u16 x, u16 i, u8 palette)
{
return 0x00000000;
}
inline u32 GetCI4IA_RGBA4444(u64* src, u16 x, u16 i, u8 palette)
{
u8 color4B;
color4B = ((u8*)src)[(x >> 1) ^ (i << 1)];
if (x & 1)
return IA88_RGBA4444(*(u16*)&TMEM[256 + (palette << 4) + (color4B & 0x0F)]);
else
return IA88_RGBA4444(*(u16*)&TMEM[256 + (palette << 4) + (color4B >> 4)]);
}
inline u32 GetCI4IA_RGBA8888(u64* src, u16 x, u16 i, u8 palette)
{
u8 color4B;
color4B = ((u8*)src)[(x >> 1) ^ (i << 1)];
if (x & 1)
return IA88_RGBA8888(*(u16*)&TMEM[256 + (palette << 4) + (color4B & 0x0F)]);
else
return IA88_RGBA8888(*(u16*)&TMEM[256 + (palette << 4) + (color4B >> 4)]);
}
inline u32 GetCI4RGBA_RGBA5551(u64* src, u16 x, u16 i, u8 palette)
{
u8 color4B;
color4B = ((u8*)src)[(x >> 1) ^ (i << 1)];
if (x & 1)
return RGBA5551_RGBA5551(*(u16*)&TMEM[256 + (palette << 4) + (color4B & 0x0F)]);
else
return RGBA5551_RGBA5551(*(u16*)&TMEM[256 + (palette << 4) + (color4B >> 4)]);
}
inline u32 GetCI4RGBA_RGBA8888(u64* src, u16 x, u16 i, u8 palette)
{
u8 color4B;
color4B = ((u8*)src)[(x >> 1) ^ (i << 1)];
if (x & 1)
return RGBA5551_RGBA8888(*(u16*)&TMEM[256 + (palette << 4) + (color4B & 0x0F)]);
else
return RGBA5551_RGBA8888(*(u16*)&TMEM[256 + (palette << 4) + (color4B >> 4)]);
}
inline u32 GetIA31_RGBA8888(u64* src, u16 x, u16 i, u8 palette)
{
u8 color4B;
color4B = ((u8*)src)[(x >> 1) ^ (i << 1)];
return IA31_RGBA8888((x & 1) ? (color4B & 0x0F) : (color4B >> 4));
}
inline u32 GetIA31_RGBA4444(u64* src, u16 x, u16 i, u8 palette)
{
u8 color4B;
color4B = ((u8*)src)[(x >> 1) ^ (i << 1)];
return IA31_RGBA4444((x & 1) ? (color4B & 0x0F) : (color4B >> 4));
}
inline u32 GetI4_RGBA8888(u64* src, u16 x, u16 i, u8 palette)
{
u8 color4B;
color4B = ((u8*)src)[(x >> 1) ^ (i << 1)];
return I4_RGBA8888((x & 1) ? (color4B & 0x0F) : (color4B >> 4));
}
inline u32 GetI4_RGBA4444(u64* src, u16 x, u16 i, u8 palette)
{
u8 color4B;
color4B = ((u8*)src)[(x >> 1) ^ (i << 1)];
return I4_RGBA4444((x & 1) ? (color4B & 0x0F) : (color4B >> 4));
}
inline u32 GetCI8IA_RGBA4444(u64* src, u16 x, u16 i, u8 palette)
{
return IA88_RGBA4444(*(u16*)&TMEM[256 + ((u8*)src)[x ^ (i << 1)]]);
}
inline u32 GetCI8IA_RGBA8888(u64* src, u16 x, u16 i, u8 palette)
{
return IA88_RGBA8888(*(u16*)&TMEM[256 + ((u8*)src)[x ^ (i << 1)]]);
}
inline u32 GetCI8RGBA_RGBA5551(u64* src, u16 x, u16 i, u8 palette)
{
return RGBA5551_RGBA5551(*(u16*)&TMEM[256 + ((u8*)src)[x ^ (i << 1)]]);
}
inline u32 GetCI8RGBA_RGBA8888(u64* src, u16 x, u16 i, u8 palette)
{
return RGBA5551_RGBA8888(*(u16*)&TMEM[256 + ((u8*)src)[x ^ (i << 1)]]);
}
inline u32 GetIA44_RGBA8888(u64* src, u16 x, u16 i, u8 palette)
{
return IA44_RGBA8888(((u8*)src)[x ^ (i << 1)]);
}
inline u32 GetIA44_RGBA4444(u64* src, u16 x, u16 i, u8 palette)
{
return IA44_RGBA4444(((u8*)src)[x ^ (i << 1)]);
}
inline u32 GetI8_RGBA8888(u64* src, u16 x, u16 i, u8 palette)
{
return I8_RGBA8888(((u8*)src)[x ^ (i << 1)]);
}
inline u32 GetI8_RGBA4444(u64* src, u16 x, u16 i, u8 palette)
{
return I8_RGBA4444(((u8*)src)[x ^ (i << 1)]);
}
inline u32 GetRGBA5551_RGBA8888(u64* src, u16 x, u16 i, u8 palette)
{
return RGBA5551_RGBA8888(((u16*)src)[x ^ i]);
}
inline u32 GetRGBA5551_RGBA5551(u64* src, u16 x, u16 i, u8 palette)
{
return RGBA5551_RGBA5551(((u16*)src)[x ^ i]);
}
inline u32 GetIA88_RGBA8888(u64* src, u16 x, u16 i, u8 palette)
{
return IA88_RGBA8888(((u16*)src)[x ^ i]);
}
inline u32 GetIA88_RGBA4444(u64* src, u16 x, u16 i, u8 palette)
{
return IA88_RGBA4444(((u16*)src)[x ^ i]);
}
inline u32 GetRGBA8888_RGBA8888(u64* src, u16 x, u16 i, u8 palette)
{
return ((u32*)src)[x ^ i];
}
inline u32 GetRGBA8888_RGBA4444(u64* src, u16 x, u16 i, u8 palette)
{
return RGBA8888_RGBA4444(((u32*)src)[x ^ i]);
}
const struct
{
GetTexelFunc Get16;
GLenum glType16;
GLint glInternalFormat16;
GetTexelFunc Get32;
GLenum glType32;
GLint glInternalFormat32;
u32 autoFormat, lineShift, maxTexels;
} imageFormat[4][5] =
{
// Get16 glType16 glInternalFormat16 Get32 glType32 glInternalFormat32 autoFormat
{
// 4-bit
{GetCI4RGBA_RGBA5551, GL_UNSIGNED_SHORT_5_5_5_1_EXT, GL_RGB5_A1, GetCI4RGBA_RGBA8888, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGB5_A1, 4, 4096}, // CI (Banjo-Kazooie uses this, doesn't make sense, but it works...)
{GetNone, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetNone, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 4, 8192}, // YUV
{GetCI4RGBA_RGBA5551, GL_UNSIGNED_SHORT_5_5_5_1_EXT, GL_RGB5_A1, GetCI4RGBA_RGBA8888, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGB5_A1, 4, 4096}, // CI
{GetIA31_RGBA4444, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetIA31_RGBA8888, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 4, 8192}, // IA
{GetI4_RGBA4444, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetI4_RGBA8888, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 4, 8192}, // I
},
{
// 8-bit
{GetCI8RGBA_RGBA5551, GL_UNSIGNED_SHORT_5_5_5_1_EXT, GL_RGB5_A1, GetCI8RGBA_RGBA8888, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGB5_A1, 3, 2048}, // RGBA
{GetNone, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetNone, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 0, 4096}, // YUV
{GetCI8RGBA_RGBA5551, GL_UNSIGNED_SHORT_5_5_5_1_EXT, GL_RGB5_A1, GetCI8RGBA_RGBA8888, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGB5_A1, 3, 2048}, // CI
{GetIA44_RGBA4444, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetIA44_RGBA8888, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 3, 4096}, // IA
{GetI8_RGBA4444, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetI8_RGBA8888, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA8, 3, 4096}, // I
},
{
// 16-bit
{GetRGBA5551_RGBA5551, GL_UNSIGNED_SHORT_5_5_5_1_EXT, GL_RGB5_A1, GetRGBA5551_RGBA8888, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGB5_A1, 2, 2048}, // RGBA
{GetNone, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetNone, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 2, 2048}, // YUV
{GetNone, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetNone, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 0, 2048}, // CI
{GetIA88_RGBA4444, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetIA88_RGBA8888, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA8, 2, 2048}, // IA
{GetNone, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetNone, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 0, 2048}, // I
},
{
// 32-bit
{GetRGBA8888_RGBA4444, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetRGBA8888_RGBA8888, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA8, 2, 1024}, // RGBA
{GetNone, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetNone, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 0, 1024}, // YUV
{GetNone, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetNone, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 0, 1024}, // CI
{GetNone, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetNone, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 0, 1024}, // IA
{GetNone, GL_UNSIGNED_SHORT_4_4_4_4_EXT, GL_RGBA4, GetNone, GL_UNSIGNED_BYTE, GL_RGBA8, GL_RGBA4, 0, 1024}, // I
}
};
void TextureCache_Init()
{
u32 dummyTexture[16] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
cache.current[0] = NULL;
cache.current[1] = NULL;
cache.top = NULL;
cache.bottom = NULL;
cache.numCached = 0;
cache.cachedBytes = 0;
cache.textureFilter = OGL.textureFilter;
cache.bitDepth = OGL.textureBitDepth;
glGenTextures(32, cache.glNoiseNames);
u8 noise[64 * 64 * 4];
for (s16 i = 0; i < 32; i++)
{
glBindTexture(GL_TEXTURE_2D, cache.glNoiseNames[i]);
srand(timeGetTime());
for (s16 y = 0; y < 64; y++)
{
for (s16 x = 0; x < 64; x++)
{
u8 random = rand();
noise[y * 64 * 4 + x * 4] = random;
noise[y * 64 * 4 + x * 4 + 1] = random;
noise[y * 64 * 4 + x * 4 + 2] = random;
noise[y * 64 * 4 + x * 4 + 3] = random;
}
}
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, 64, 64, 0, GL_RGBA, GL_UNSIGNED_BYTE, noise);
}
cache.dummy = TextureCache_AddTop();
cache.dummy->address = 0;
cache.dummy->clampS = 1;
cache.dummy->clampT = 1;
cache.dummy->clampWidth = 2;
cache.dummy->clampHeight = 2;
cache.dummy->crc = 0;
cache.dummy->format = 0;
cache.dummy->size = 0;
cache.dummy->frameBufferTexture = FALSE;
cache.dummy->width = 2;
cache.dummy->height = 2;
cache.dummy->realWidth = 0;
cache.dummy->realHeight = 0;
cache.dummy->maskS = 0;
cache.dummy->maskT = 0;
cache.dummy->scaleS = 0.5f;
cache.dummy->scaleT = 0.5f;
cache.dummy->shiftScaleS = 1.0f;
cache.dummy->shiftScaleT = 1.0f;
cache.dummy->textureBytes = 64;
cache.dummy->tMem = 0;
glBindTexture(GL_TEXTURE_2D, cache.dummy->glName);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, dummyTexture);
cache.cachedBytes = cache.dummy->textureBytes;
TextureCache_ActivateDummy(0);
TextureCache_ActivateDummy(1);
CRC_BuildTable();
}
BOOL TextureCache_Verify()
{
s16 i = 0;
CachedTexture* current;
current = cache.top;
while (current)
{
i++;
current = current->lower;
}
if (i != cache.numCached) return FALSE;
i = 0;
current = cache.bottom;
while (current)
{
i++;
current = current->higher;
}
if (i != cache.numCached) return FALSE;
return TRUE;
}
void TextureCache_RemoveBottom()
{
CachedTexture* newBottom = cache.bottom->higher;
glDeleteTextures(1, &cache.bottom->glName);
cache.cachedBytes -= cache.bottom->textureBytes;
if (cache.bottom->frameBufferTexture)
FrameBuffer_RemoveBuffer(cache.bottom->address);
if (cache.bottom == cache.top)
cache.top = NULL;
free(cache.bottom);
cache.bottom = newBottom;
if (cache.bottom)
cache.bottom->lower = NULL;
cache.numCached--;
}
void TextureCache_Remove(CachedTexture* texture)
{
if ((texture == cache.bottom) &&
(texture == cache.top))
{
cache.top = NULL;
cache.bottom = NULL;
}
else if (texture == cache.bottom)
{
cache.bottom = texture->higher;
if (cache.bottom)
cache.bottom->lower = NULL;
}
else if (texture == cache.top)
{
cache.top = texture->lower;
if (cache.top)
cache.top->higher = NULL;
}
else
{
texture->higher->lower = texture->lower;
texture->lower->higher = texture->higher;
}
glDeleteTextures(1, &texture->glName);
cache.cachedBytes -= texture->textureBytes;
free(texture);
cache.numCached--;
}
CachedTexture* TextureCache_AddTop()
{
while (cache.cachedBytes > cache.maxBytes)
{
if (cache.bottom != cache.dummy)
TextureCache_RemoveBottom();
else if (cache.dummy->higher)
TextureCache_Remove(cache.dummy->higher);
}
auto newtop = (CachedTexture*)malloc(sizeof(CachedTexture));
glGenTextures(1, &newtop->glName);
newtop->lower = cache.top;
newtop->higher = NULL;
if (cache.top)
cache.top->higher = newtop;
if (!cache.bottom)
cache.bottom = newtop;
cache.top = newtop;
cache.numCached++;
return newtop;
}
void TextureCache_MoveToTop(CachedTexture* newtop)
{
if (newtop == cache.top) return;
if (newtop == cache.bottom)
{
cache.bottom = newtop->higher;
cache.bottom->lower = NULL;
}
else
{
newtop->higher->lower = newtop->lower;
newtop->lower->higher = newtop->higher;
}
newtop->higher = NULL;
newtop->lower = cache.top;
cache.top->higher = newtop;
cache.top = newtop;
}
void TextureCache_Destroy()
{
while (cache.bottom)
TextureCache_RemoveBottom();
glDeleteTextures(32, cache.glNoiseNames);
// glDeleteTextures( 1, &cache.glDummyName );
cache.top = NULL;
cache.bottom = NULL;
}
void TextureCache_LoadBackground(CachedTexture* texInfo)
{
u32 *dest, *scaledDest;
u8 *swapped, *src;
u32 numBytes, bpl;
u32 x, y, i, j, tx, ty;
u16 clampSClamp;
u16 clampTClamp;
GetTexelFunc GetTexel;
GLuint glInternalFormat;
GLenum glType;
if (((imageFormat[texInfo->size][texInfo->format].autoFormat == GL_RGBA8) ||
((texInfo->format == G_IM_FMT_CI) && (gDP.otherMode.textureLUT == G_TT_IA16)) || (cache.bitDepth == 2)) && (cache.bitDepth != 0))
{
texInfo->textureBytes = (texInfo->realWidth * texInfo->realHeight) << 2;
if ((texInfo->format == G_IM_FMT_CI) && (gDP.otherMode.textureLUT == G_TT_IA16))
{
if (texInfo->size == G_IM_SIZ_4b)
GetTexel = GetCI4IA_RGBA8888;
else
GetTexel = GetCI8IA_RGBA8888;
glInternalFormat = GL_RGBA8;
glType = GL_UNSIGNED_BYTE;
}
else
{
GetTexel = imageFormat[texInfo->size][texInfo->format].Get32;
glInternalFormat = imageFormat[texInfo->size][texInfo->format].glInternalFormat32;
glType = imageFormat[texInfo->size][texInfo->format].glType32;
}
}
else
{
texInfo->textureBytes = (texInfo->realWidth * texInfo->realHeight) << 1;
if ((texInfo->format == G_IM_FMT_CI) && (gDP.otherMode.textureLUT == G_TT_IA16))
{
if (texInfo->size == G_IM_SIZ_4b)
GetTexel = GetCI4IA_RGBA4444;
else
GetTexel = GetCI8IA_RGBA4444;
glInternalFormat = GL_RGBA4;
glType = GL_UNSIGNED_SHORT_4_4_4_4_EXT;
}
else
{
GetTexel = imageFormat[texInfo->size][texInfo->format].Get16;
glInternalFormat = imageFormat[texInfo->size][texInfo->format].glInternalFormat16;
glType = imageFormat[texInfo->size][texInfo->format].glType16;
}
}
bpl = gSP.bgImage.width << gSP.bgImage.size >> 1;
numBytes = bpl * gSP.bgImage.height;
swapped = (u8*)malloc(numBytes);
UnswapCopy(&RDRAM[gSP.bgImage.address], swapped, numBytes);
dest = (u32*)malloc(texInfo->textureBytes);
clampSClamp = texInfo->width - 1;
clampTClamp = texInfo->height - 1;
j = 0;
for (y = 0; y < texInfo->realHeight; y++)
{
ty = min(y, clampTClamp);
src = &swapped[bpl * ty];
for (x = 0; x < texInfo->realWidth; x++)
{
tx = min(x, clampSClamp);
if (glInternalFormat == GL_RGBA8)
((u32*)dest)[j++] = GetTexel((u64*)src, tx, 0, texInfo->palette);
else
((u16*)dest)[j++] = GetTexel((u64*)src, tx, 0, texInfo->palette);
}
}
if (cache.textureFilter)
{
if (cache.textureFilter == SaI) OGL.filterScale = 2;
texInfo->textureBytes *= OGL.filterScale * OGL.filterScale;
scaledDest = (u32*)malloc(texInfo->textureBytes);
if (cache.textureFilter == xBRZ)
xbrz::scale(OGL.filterScale, (uint32_t*)dest, (uint32_t*)scaledDest, texInfo->realWidth, texInfo->realHeight, xbrz::ColorFormat::ARGB);
else if (glInternalFormat == GL_RGBA8)
{
_2xSaI8888((u32*)dest, (u32*)scaledDest, texInfo->realWidth, texInfo->realHeight, 1, 1);
}
else if (glInternalFormat == GL_RGBA4)
_2xSaI4444((u16*)dest, (u16*)scaledDest, texInfo->realWidth, texInfo->realHeight, texInfo->clampS, texInfo->clampT);
else
_2xSaI5551((u16*)dest, (u16*)scaledDest, texInfo->realWidth, texInfo->realHeight, texInfo->clampS, texInfo->clampT);
glTexImage2D(GL_TEXTURE_2D, 0, glInternalFormat, texInfo->realWidth * OGL.filterScale, texInfo->realHeight * OGL.filterScale, 0, GL_RGBA, glType, scaledDest);
free(dest);
free(scaledDest);
}
else
{
glTexImage2D(GL_TEXTURE_2D, 0, glInternalFormat, texInfo->realWidth, texInfo->realHeight, 0, GL_RGBA, glType, dest);
free(dest);
}
}
void TextureCache_Load(CachedTexture* texInfo)
{
u32 *dest, *scaledDest;
u64* src;
u16 x, y, i, j, tx, ty, line;
u16 mirrorSBit, maskSMask, clampSClamp;
u16 mirrorTBit, maskTMask, clampTClamp;
GetTexelFunc GetTexel;
GLuint glInternalFormat;
GLenum glType;
if (((imageFormat[texInfo->size][texInfo->format].autoFormat == GL_RGBA8) ||
((texInfo->format == G_IM_FMT_CI) && (gDP.otherMode.textureLUT == G_TT_IA16)) || (cache.bitDepth == 2)) && (cache.bitDepth != 0))
{
texInfo->textureBytes = (texInfo->realWidth * texInfo->realHeight) << 2;
if ((texInfo->format == G_IM_FMT_CI) && (gDP.otherMode.textureLUT == G_TT_IA16))
{
if (texInfo->size == G_IM_SIZ_4b)
GetTexel = GetCI4IA_RGBA8888;
else
GetTexel = GetCI8IA_RGBA8888;
glInternalFormat = GL_RGBA8;
glType = GL_UNSIGNED_BYTE;
}
else
{
GetTexel = imageFormat[texInfo->size][texInfo->format].Get32;
glInternalFormat = imageFormat[texInfo->size][texInfo->format].glInternalFormat32;
glType = imageFormat[texInfo->size][texInfo->format].glType32;
}
}
else
{
texInfo->textureBytes = (texInfo->realWidth * texInfo->realHeight) << 1;
if ((texInfo->format == G_IM_FMT_CI) && (gDP.otherMode.textureLUT == G_TT_IA16))
{
if (texInfo->size == G_IM_SIZ_4b)
GetTexel = GetCI4IA_RGBA4444;
else
GetTexel = GetCI8IA_RGBA4444;
glInternalFormat = GL_RGBA4;
glType = GL_UNSIGNED_SHORT_4_4_4_4_EXT;
}
else
{
GetTexel = imageFormat[texInfo->size][texInfo->format].Get16;
glInternalFormat = imageFormat[texInfo->size][texInfo->format].glInternalFormat16;
glType = imageFormat[texInfo->size][texInfo->format].glType16;
}
}
dest = (u32*)malloc(texInfo->textureBytes);
line = texInfo->line;
if (texInfo->size == G_IM_SIZ_32b)
line <<= 1;
if (texInfo->maskS)
{
clampSClamp = texInfo->clampS ? texInfo->clampWidth - 1 : (texInfo->mirrorS ? (texInfo->width << 1) - 1 : texInfo->width - 1);
maskSMask = (1 << texInfo->maskS) - 1;
mirrorSBit = texInfo->mirrorS ? 1 << texInfo->maskS : 0;
}
else
{
clampSClamp = min(texInfo->clampWidth, texInfo->width) - 1;
maskSMask = 0xFFFF;
mirrorSBit = 0x0000;
}
if (texInfo->maskT)
{
clampTClamp = texInfo->clampT ? texInfo->clampHeight - 1 : (texInfo->mirrorT ? (texInfo->height << 1) - 1 : texInfo->height - 1);
maskTMask = (1 << texInfo->maskT) - 1;
mirrorTBit = texInfo->mirrorT ? 1 << texInfo->maskT : 0;
}
else
{
clampTClamp = min(texInfo->clampHeight, texInfo->height) - 1;
maskTMask = 0xFFFF;
mirrorTBit = 0x0000;
}
// Hack for Zelda warp texture
if (((texInfo->tMem << 3) + (texInfo->width * texInfo->height << texInfo->size >> 1)) > 4096)
texInfo->tMem = 0;
j = 0;
for (y = 0; y < texInfo->realHeight; y++)
{
ty = min(y, clampTClamp) & maskTMask;
if (y & mirrorTBit)
ty ^= maskTMask;
src = &TMEM[texInfo->tMem] + line * ty;
i = (ty & 1) << 1;
for (x = 0; x < texInfo->realWidth; x++)
{
tx = min(x, clampSClamp) & maskSMask;
if (x & mirrorSBit)
tx ^= maskSMask;
if (glInternalFormat == GL_RGBA8)
((u32*)dest)[j++] = GetTexel(src, tx, i, texInfo->palette);
else
((u16*)dest)[j++] = GetTexel(src, tx, i, texInfo->palette);
}
}
if (cache.textureFilter)
{
if (cache.textureFilter == SaI) OGL.filterScale = 2;
texInfo->textureBytes *= OGL.filterScale * OGL.filterScale;
scaledDest = (u32*)malloc(texInfo->textureBytes);
if (cache.textureFilter == xBRZ)
xbrz::scale(OGL.filterScale, (uint32_t*)dest, (uint32_t*)scaledDest, texInfo->realWidth, texInfo->realHeight, xbrz::ColorFormat::ARGB);
else if (glInternalFormat == GL_RGBA8)
{
_2xSaI8888((u32*)dest, (u32*)scaledDest, texInfo->realWidth, texInfo->realHeight, 1, 1);
}
else if (glInternalFormat == GL_RGBA8)
_2xSaI4444((u16*)dest, (u16*)scaledDest, texInfo->realWidth, texInfo->realHeight, 1, 1);
else
_2xSaI5551((u16*)dest, (u16*)scaledDest, texInfo->realWidth, texInfo->realHeight, 1, 1);
glTexImage2D(GL_TEXTURE_2D, 0, glInternalFormat, texInfo->realWidth * OGL.filterScale, texInfo->realHeight * OGL.filterScale, 0, GL_RGBA, glType, scaledDest);
free(dest);
free(scaledDest);
}
else
{
glTexImage2D(GL_TEXTURE_2D, 0, glInternalFormat, texInfo->realWidth, texInfo->realHeight, 0, GL_RGBA, glType, dest);
free(dest);
}
}
u32 TextureCache_CalculateCRC(u32 t, u32 width, u32 height)
{
u32 crc;
u32 y, i, bpl, lineBytes, line;
u64* src;
src = (u64*)&TMEM[gSP.textureTile[t]->tmem];
bpl = width << gSP.textureTile[t]->size >> 1;
lineBytes = gSP.textureTile[t]->line << 3;
line = gSP.textureTile[t]->line;
if (gSP.textureTile[t]->size == G_IM_SIZ_32b)
line <<= 1;
crc = 0xFFFFFFFF;
for (y = 0; y < height; y++)
{
crc = CRC_Calculate(crc, src, bpl);
src += line;
}
if (gSP.textureTile[t]->format == G_IM_FMT_CI)
{
if (gSP.textureTile[t]->size == G_IM_SIZ_4b)
crc = CRC_Calculate(crc, &gDP.paletteCRC16[gSP.textureTile[t]->palette], 4);
else if (gSP.textureTile[t]->size == G_IM_SIZ_8b)
crc = CRC_Calculate(crc, &gDP.paletteCRC256, 4);
}
return crc;
}
void TextureCache_ActivateTexture(u32 t, CachedTexture* texture)
{
// If multitexturing, set the appropriate texture
if (OGL.ARB_multitexture)
glActiveTextureARB(GL_TEXTURE0_ARB + t);
// Bind the cached texture
glBindTexture(GL_TEXTURE_2D, texture->glName);
// Set filter mode. Almost always bilinear, but check anyways
if ((gDP.otherMode.textureFilter == G_TF_BILERP) || (gDP.otherMode.textureFilter == G_TF_AVERAGE) || (OGL.forceBilinear))
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
}
else
{
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
// Set clamping modes
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, texture->clampS ? GL_CLAMP_TO_EDGE : GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, texture->clampT ? GL_CLAMP_TO_EDGE : GL_REPEAT);
texture->lastDList = RSP.DList;
TextureCache_MoveToTop(texture);
cache.current[t] = texture;
}
void TextureCache_ActivateDummy(u32 t)
{
//TextureCache_ActivateTexture( t, cache.dummy );
if (OGL.ARB_multitexture)
glActiveTextureARB(GL_TEXTURE0_ARB + t);
glBindTexture(GL_TEXTURE_2D, cache.dummy->glName);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
}
void TextureCache_UpdateBackground()
{
u32 numBytes = gSP.bgImage.width * gSP.bgImage.height << gSP.bgImage.size >> 1;
u32 crc;
crc = CRC_Calculate(0xFFFFFFFF, &RDRAM[gSP.bgImage.address], numBytes);
if (gSP.bgImage.format == G_IM_FMT_CI)
{
if (gSP.bgImage.size == G_IM_SIZ_4b)
crc = CRC_Calculate(crc, &gDP.paletteCRC16[gSP.bgImage.palette], 4);
else if (gSP.bgImage.size == G_IM_SIZ_8b)
crc = CRC_Calculate(crc, &gDP.paletteCRC256, 4);
}
CachedTexture* current = cache.top;
while (current)
{
if ((current->crc == crc) &&
(current->width == gSP.bgImage.width) &&
(current->height == gSP.bgImage.height) &&
(current->format == gSP.bgImage.format) &&
(current->size == gSP.bgImage.size))
{
TextureCache_ActivateTexture(0, current);
cache.hits++;
return;
}
current = current->lower;
}
cache.misses++;
// If multitexturing, set the appropriate texture
if (OGL.ARB_multitexture)
glActiveTextureARB(GL_TEXTURE0_ARB);
cache.current[0] = TextureCache_AddTop();
glBindTexture(GL_TEXTURE_2D, cache.current[0]->glName);
cache.current[0]->address = gSP.bgImage.address;
cache.current[0]->crc = crc;
cache.current[0]->format = gSP.bgImage.format;
cache.current[0]->size = gSP.bgImage.size;
cache.current[0]->width = gSP.bgImage.width;
cache.current[0]->height = gSP.bgImage.height;
cache.current[0]->clampWidth = gSP.bgImage.width;
cache.current[0]->clampHeight = gSP.bgImage.height;
cache.current[0]->palette = gSP.bgImage.palette;
cache.current[0]->maskS = 0;
cache.current[0]->maskT = 0;
cache.current[0]->mirrorS = 0;
cache.current[0]->mirrorT = 0;
cache.current[0]->clampS = 1;
cache.current[0]->clampT = 1;
cache.current[0]->line = 0;
cache.current[0]->tMem = 0;
cache.current[0]->lastDList = RSP.DList;
cache.current[0]->frameBufferTexture = FALSE;
cache.current[0]->realWidth = pow2(gSP.bgImage.width);
cache.current[0]->realHeight = pow2(gSP.bgImage.height);
cache.current[0]->scaleS = 1.0f / (f32)(cache.current[0]->realWidth);
cache.current[0]->scaleT = 1.0f / (f32)(cache.current[0]->realHeight);
cache.current[0]->shiftScaleS = 1.0f;
cache.current[0]->shiftScaleT = 1.0f;
TextureCache_LoadBackground(cache.current[0]);
TextureCache_ActivateTexture(0, cache.current[0]);
cache.cachedBytes += cache.current[0]->textureBytes;
}
void TextureCache_Update(u32 t)
{
CachedTexture* current;
s32 i, j, k;
u32 crc, bpl, cacheNum, maxTexels;
u32 tileWidth, maskWidth, loadWidth, lineWidth, clampWidth, height;
u32 tileHeight, maskHeight, loadHeight, lineHeight, clampHeight, width;
if (OGL.filterChanged)
{
TextureCache_Destroy();
TextureCache_Init();
OGL.filterChanged = FALSE;
}
if (cache.bitDepth != OGL.textureBitDepth)
{
TextureCache_Destroy();
TextureCache_Init();
}
if (gDP.textureMode == TEXTUREMODE_BGIMAGE)
{
TextureCache_UpdateBackground();
return;
}
else if (gDP.textureMode == TEXTUREMODE_FRAMEBUFFER)
{
FrameBuffer_ActivateBufferTexture(t, gDP.loadTile->frameBuffer);
return;
}
maxTexels = imageFormat[gSP.textureTile[t]->size][gSP.textureTile[t]->format].maxTexels;
// Here comes a bunch of code that just calculates the texture size...I wish there was an easier way...
tileWidth = gSP.textureTile[t]->lrs - gSP.textureTile[t]->uls + 1;
tileHeight = gSP.textureTile[t]->lrt - gSP.textureTile[t]->ult + 1;
maskWidth = 1 << gSP.textureTile[t]->masks;
maskHeight = 1 << gSP.textureTile[t]->maskt;
loadWidth = gDP.loadTile->lrs - gDP.loadTile->uls + 1;
loadHeight = gDP.loadTile->lrt - gDP.loadTile->ult + 1;
lineWidth = gSP.textureTile[t]->line << imageFormat[gSP.textureTile[t]->size][gSP.textureTile[t]->format].lineShift;
if (lineWidth) // Don't allow division by zero
lineHeight = min(maxTexels / lineWidth, tileHeight);
else
lineHeight = 0;
if (gDP.textureMode == TEXTUREMODE_TEXRECT)
{
u16 texRectWidth = gDP.texRect.width - gSP.textureTile[t]->uls;
u16 texRectHeight = gDP.texRect.height - gSP.textureTile[t]->ult;
// if ((tileWidth == (maskWidth + 1)) && (gDP.loadType == LOADTYPE_TILE) && (gDP.loadTile->lrs - gDP.loadTile->uls + 1 == tileWidth))
// gSP.textureTile[t]->masks = 0;
if (gSP.textureTile[t]->masks && ((maskWidth * maskHeight) <= maxTexels))
width = maskWidth;
else if ((tileWidth * tileHeight) <= maxTexels)
width = tileWidth;
else if ((tileWidth * texRectHeight) <= maxTexels)
width = tileWidth;
else if ((texRectWidth * tileHeight) <= maxTexels)
width = gDP.texRect.width;
else if ((texRectWidth * texRectHeight) <= maxTexels)
width = gDP.texRect.width;
else if (gDP.loadType == LOADTYPE_TILE)
width = loadWidth;
else
width = lineWidth;
// if ((tileHeight == (maskHeight + 1)) && (gDP.loadType == LOADTYPE_TILE) && (gDP.loadTile->lrt - gDP.loadTile->ult + 1 == tileHeight))
// gSP.textureTile[t]->maskt = 0;
if (gSP.textureTile[t]->maskt && ((maskWidth * maskHeight) <= maxTexels))
height = maskHeight;
else if ((tileWidth * tileHeight) <= maxTexels)
height = tileHeight;
else if ((tileWidth * texRectHeight) <= maxTexels)
height = gDP.texRect.height;
else if ((texRectWidth * tileHeight) <= maxTexels)
height = tileHeight;
else if ((texRectWidth * texRectHeight) <= maxTexels)
height = gDP.texRect.height;
else if (gDP.loadType == LOADTYPE_TILE)
height = loadHeight;
else
height = lineHeight;
// gSP.textureTile[t]->masks = 0;
// gSP.textureTile[t]->maskt = 0;
}
else
{
if (gSP.textureTile[t]->masks && ((maskWidth * maskHeight) <= maxTexels))
width = maskWidth; // Use mask width if set and valid
else if ((tileWidth * tileHeight) <= maxTexels)
width = tileWidth; // else use tile width if valid
else if (gDP.loadType == LOADTYPE_TILE)
width = loadWidth; // else use load width if load done with LoadTile
else
width = lineWidth; // else use line-based width
if (gSP.textureTile[t]->maskt && ((maskWidth * maskHeight) <= maxTexels))
height = maskHeight;
else if ((tileWidth * tileHeight) <= maxTexels)
height = tileHeight;
else if (gDP.loadType == LOADTYPE_TILE)
height = loadHeight;
else
height = lineHeight;
}
/* if (gDP.loadTile->frameBuffer)
{
FrameBuffer_ActivateBufferTexture( t, gDP.loadTile->frameBuffer );
return;
}*/
clampWidth = gSP.textureTile[t]->clamps ? tileWidth : width;
clampHeight = gSP.textureTile[t]->clampt ? tileHeight : height;
if (clampWidth > 256)
gSP.textureTile[t]->clamps = 0;
if (clampHeight > 256)
gSP.textureTile[t]->clampt = 0;
// Make sure masking is valid
if (maskWidth > width)
{
gSP.textureTile[t]->masks = powof(width);
maskWidth = 1 << gSP.textureTile[t]->masks;
}
if (maskHeight > height)
{
gSP.textureTile[t]->maskt = powof(height);
maskHeight = 1 << gSP.textureTile[t]->maskt;