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GL: Add support for R6G5B5.

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Unknown W. Brackets 2014-05-17 11:03:48 -07:00
parent 2f8e31cddd
commit 86d35d58df
1 changed files with 42 additions and 3 deletions
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45
rpcs3/Emu/GS/GL/GLGSRender.h
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@ -62,6 +62,24 @@ public:
return GL_REPEAT;
}
inline static u8 Convert4To8(u8 v)
{
// Swizzle bits: 00012345 -> 12345123
return (v << 4) | (v);
}
inline static u8 Convert5To8(u8 v)
{
// Swizzle bits: 00012345 -> 12345123
return (v << 3) | (v >> 2);
}
inline static u8 Convert6To8(u8 v)
{
// Swizzle bits: 00123456 -> 12345612
return (v << 2) | (v >> 4);
}
void Init(RSXTexture& tex)
{
Bind();
@ -78,8 +96,8 @@ public:
int format = tex.GetFormat() & ~(CELL_GCM_TEXTURE_LN | CELL_GCM_TEXTURE_UN);
bool is_swizzled = !(tex.GetFormat() & CELL_GCM_TEXTURE_LN);
char* pixels = (char*)Memory.GetMemFromAddr(GetAddress(tex.GetOffset(), tex.GetLocation()));
char* unswizzledPixels;
u8* pixels = (u8*)Memory.GetMemFromAddr(GetAddress(tex.GetOffset(), tex.GetLocation()));
u8* unswizzledPixels;
static const GLint glRemapStandard[4] = {GL_ALPHA, GL_RED, GL_GREEN, GL_BLUE};
// NOTE: This must be in ARGB order in all forms below.
const GLint *glRemap = glRemapStandard;
@ -124,7 +142,7 @@ public:
u32 *src, *dst;
u32 log2width, log2height;
unswizzledPixels = (char*)malloc(tex.GetWidth() * tex.GetHeight() * 4);
unswizzledPixels = (u8*)malloc(tex.GetWidth() * tex.GetHeight() * 4);
src = (u32*)pixels;
dst = (u32*)unswizzledPixels;
@ -181,6 +199,27 @@ public:
}
break;
case CELL_GCM_TEXTURE_R6G5B5:
{
// TODO: Probably need to actually unswizzle if is_swizzled.
const u32 numPixels = tex.GetWidth() * tex.GetHeight();
unswizzledPixels = (u8 *)malloc(numPixels * 4);
// TODO: Speed.
for (u32 i = 0; i < numPixels; ++i) {
u16 c = reinterpret_cast<const be_t<u16> *>(pixels)[i];
unswizzledPixels[i * 4 + 0] = Convert6To8((c >> 10) & 0x3F);
unswizzledPixels[i * 4 + 1] = Convert5To8((c >> 5) & 0x1F);
unswizzledPixels[i * 4 + 2] = Convert5To8((c >> 0) & 0x1F);
unswizzledPixels[i * 4 + 3] = 255;
}
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, tex.GetWidth(), tex.GetHeight(), 0, GL_RGBA, GL_UNSIGNED_BYTE, unswizzledPixels);
checkForGlError("GLTexture::Init() -> glTexImage2D");
free(unswizzledPixels);
}
break;
case CELL_GCM_TEXTURE_DEPTH24_D8: // 24-bit unsigned fixed-point number and 8 bits of garbage
glTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT24, tex.GetWidth(), tex.GetHeight(), 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, pixels);
checkForGlError("GLTexture::Init() -> glTexImage2D");