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Moving pixel engine and command processor from core to video common. This will break previous save states. Adds decoding single pixels to texture decoder.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4391 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
donkopunchstania
2009-10-10 21:19:39 +00:00
parent 5049fcf9f5
commit 56214e9103
34 changed files with 1889 additions and 1460 deletions
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337
Source/Core/VideoCommon/Src/TextureDecoder.cpp
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@ -325,6 +325,11 @@ inline u32 makecol(int r, int g, int b, int a)
return (a << 24)|(r << 16)|(g << 8)|b;
}
inline u32 makeRGBA(int r, int g, int b, int a)
{
return (a<<24)|(b<<16)|(g<<8)|r;
}
void decodeDXTBlock(u32 *dst, const DXTBlock *src, int pitch)
{
// S3TC Decoder (Note: GCN decodes differently from PC so we can't use native support)
@ -664,6 +669,338 @@ PC_TexFormat TexDecoder_Decode(u8 *dst, const u8 *src, int width, int height, in
return retval;
}
inline u32 decode565RGBA(u16 val)
{
int r,g,b,a;
r=Convert5To8((val>>11) & 0x1f);
g=Convert6To8((val>>5 ) & 0x3f);
b=Convert5To8((val ) & 0x1f);
a=0xFF;
return r | (g<<8) | (b << 16) | (a << 24);
}
inline u32 decodeIA8Swapped(u16 val)
{
int a = val & 0xFF;
int i = val >> 8;
return i | (i<<8) | (i<<16) | (a<<24);
}
inline u32 decode5A3RGBA(u16 val)
{
int r,g,b,a;
if ((val&0x8000))
{
r=Convert5To8((val>>10) & 0x1f);
g=Convert5To8((val>>5 ) & 0x1f);
b=Convert5To8((val ) & 0x1f);
a=0xFF;
}
else
{
a=Convert3To8((val>>12) & 0x7);
r=Convert4To8((val>>8 ) & 0xf);
g=Convert4To8((val>>4 ) & 0xf);
b=Convert4To8((val ) & 0xf);
}
return r | (g<<8) | (b << 16) | (a << 24);
}
void TexDecoder_DecodeTexel(u8 *dst, const u8 *src, int s, int t, int imageWidth, int texformat, int tlutaddr, int tlutfmt)
{
/* General formula for computing texture offset
//
u16 sBlk = s / blockWidth;
u16 tBlk = t / blockHeight;
u16 widthBlks = (width / blockWidth) + 1;
u32 base = (tBlk * widthBlks + sBlk) * blockWidth * blockHeight;
u16 blkS = s & (blockWidth - 1);
u16 blkT = t & (blockHeight - 1);
u32 blkOff = blkT * blockWidth + blkS;
*/
switch (texformat)
{
case GX_TF_C4:
{
u16 sBlk = s >> 3;
u16 tBlk = t >> 3;
u16 widthBlks = (imageWidth >> 3) + 1;
u32 base = (tBlk * widthBlks + sBlk) << 5;
u16 blkS = s & 7;
u16 blkT = t & 7;
u32 blkOff = (blkT << 3) + blkS;
int rs = (blkOff & 1)?0:4;
u32 offset = base + (blkOff >> 1);
u8 val = (*(src + offset) >> rs) & 0xF;
u16 *tlut = (u16*)(texMem + tlutaddr);
switch (tlutfmt)
{
case 0:
*((u32*)dst) = decodeIA8Swapped(tlut[val]);
break;
case 1:
*((u32*)dst) = decode565RGBA(Common::swap16(tlut[val]));
break;
case 2:
*((u32*)dst) = decode5A3RGBA(Common::swap16(tlut[val]));
break;
}
}
break;
case GX_TF_I4:
{
u16 sBlk = s >> 3;
u16 tBlk = t >> 3;
u16 widthBlks = (imageWidth >> 3) + 1;
u32 base = (tBlk * widthBlks + sBlk) << 5;
u16 blkS = s & 7;
u16 blkT = t & 7;
u32 blkOff = (blkT << 3) + blkS;
int rs = (blkOff & 1)?0:4;
u32 offset = base + (blkOff >> 1);
u8 val = (*(src + offset) >> rs) & 0xF;
val = Convert4To8(val);
dst[0] = val;
dst[1] = val;
dst[2] = val;
dst[3] = val;
}
break;
case GX_TF_I8:
{
u16 sBlk = s >> 3;
u16 tBlk = t >> 2;
u16 widthBlks = (imageWidth >> 3) + 1;
u32 base = (tBlk * widthBlks + sBlk) << 5;
u16 blkS = s & 7;
u16 blkT = t & 3;
u32 blkOff = (blkT << 3) + blkS;
u8 val = *(src + base + blkOff);
dst[0] = val;
dst[1] = val;
dst[2] = val;
dst[3] = val;
}
break;
case GX_TF_C8:
{
u16 sBlk = s >> 3;
u16 tBlk = t >> 2;
u16 widthBlks = (imageWidth >> 3) + 1;
u32 base = (tBlk * widthBlks + sBlk) << 5;
u16 blkS = s & 7;
u16 blkT = t & 3;
u32 blkOff = (blkT << 3) + blkS;
u8 val = *(src + base + blkOff);
u16 *tlut = (u16*)(texMem + tlutaddr);
switch (tlutfmt)
{
case 0:
*((u32*)dst) = decodeIA8Swapped(tlut[val]);
break;
case 1:
*((u32*)dst) = decode565RGBA(Common::swap16(tlut[val]));
break;
case 2:
*((u32*)dst) = decode5A3RGBA(Common::swap16(tlut[val]));
break;
}
}
break;
case GX_TF_IA4:
{
u16 sBlk = s >> 3;
u16 tBlk = t >> 2;
u16 widthBlks = (imageWidth >> 3) + 1;
u32 base = (tBlk * widthBlks + sBlk) << 5;
u16 blkS = s & 7;
u16 blkT = t & 3;
u32 blkOff = (blkT << 3) + blkS;
u8 val = *(src + base + blkOff);
const u8 a = Convert4To8(val>>4);
const u8 l = Convert4To8(val&0xF);
dst[0] = l;
dst[1] = l;
dst[2] = l;
dst[3] = a;
}
break;
case GX_TF_IA8:
{
u16 sBlk = s >> 2;
u16 tBlk = t >> 2;
u16 widthBlks = (imageWidth >> 2) + 1;
u32 base = (tBlk * widthBlks + sBlk) << 4;
u16 blkS = s & 3;
u16 blkT = t & 3;
u32 blkOff = (blkT << 2) + blkS;
u32 offset = (base + blkOff) << 1;
const u16* valAddr = (u16*)(src + offset);
*((u32*)dst) = decodeIA8Swapped(*valAddr);
}
break;
case GX_TF_C14X2:
{
u16 sBlk = s >> 2;
u16 tBlk = t >> 2;
u16 widthBlks = (imageWidth >> 2) + 1;
u32 base = (tBlk * widthBlks + sBlk) << 4;
u16 blkS = s & 3;
u16 blkT = t & 3;
u32 blkOff = (blkT << 2) + blkS;
u32 offset = (base + blkOff) << 1;
const u16* valAddr = (u16*)(src + offset);
u16 val = Common::swap16(*valAddr) & 0x3FFF;
u16 *tlut = (u16*)(texMem + tlutaddr);
switch (tlutfmt)
{
case 0:
*((u32*)dst) = decodeIA8Swapped(tlut[val]);
break;
case 1:
*((u32*)dst) = decode565RGBA(Common::swap16(tlut[val]));
break;
case 2:
*((u32*)dst) = decode5A3RGBA(Common::swap16(tlut[val]));
break;
}
}
break;
case GX_TF_RGB565:
{
u16 sBlk = s >> 2;
u16 tBlk = t >> 2;
u16 widthBlks = (imageWidth >> 2) + 1;
u32 base = (tBlk * widthBlks + sBlk) << 4;
u16 blkS = s & 3;
u16 blkT = t & 3;
u32 blkOff = (blkT << 2) + blkS;
u32 offset = (base + blkOff) << 1;
const u16* valAddr = (u16*)(src + offset);
*((u32*)dst) = decode565RGBA(Common::swap16(*valAddr));
}
break;
case GX_TF_RGB5A3:
{
u16 sBlk = s >> 2;
u16 tBlk = t >> 2;
u16 widthBlks = (imageWidth >> 2) + 1;
u32 base = (tBlk * widthBlks + sBlk) << 4;
u16 blkS = s & 3;
u16 blkT = t & 3;
u32 blkOff = (blkT << 2) + blkS;
u32 offset = (base + blkOff) << 1;
const u16* valAddr = (u16*)(src + offset);
*((u32*)dst) = decode5A3RGBA(Common::swap16(*valAddr));
}
break;
case GX_TF_RGBA8:
{
u16 sBlk = s >> 2;
u16 tBlk = t >> 2;
u16 widthBlks = (imageWidth >> 2) + 1;
u32 base = (tBlk * widthBlks + sBlk) << 5; // shift by 5 is correct
u16 blkS = s & 3;
u16 blkT = t & 3;
u32 blkOff = (blkT << 2) + blkS;
u32 offset = (base + blkOff) << 1 ;
const u8* valAddr = src + offset;
dst[3] = valAddr[0];
dst[0] = valAddr[1];
dst[1] = valAddr[32];
dst[2] = valAddr[33];
}
break;
case GX_TF_CMPR:
{
u16 sDxt = s >> 2;
u16 tDxt = t >> 2;
u16 sBlk = sDxt >> 1;
u16 tBlk = tDxt >> 1;
u16 widthBlks = (imageWidth >> 3) + 1;
u32 base = (tBlk * widthBlks + sBlk) << 2;
u16 blkS = sDxt & 1;
u16 blkT = tDxt & 1;
u32 blkOff = (blkT << 1) + blkS;
u32 offset = (base + blkOff) << 3;
const DXTBlock* dxtBlock = (const DXTBlock*)(src + offset);
u16 c1 = Common::swap16(dxtBlock->color1);
u16 c2 = Common::swap16(dxtBlock->color2);
int blue1 = Convert5To8(c1 & 0x1F);
int blue2 = Convert5To8(c2 & 0x1F);
int green1 = Convert6To8((c1 >> 5) & 0x3F);
int green2 = Convert6To8((c2 >> 5) & 0x3F);
int red1 = Convert5To8((c1 >> 11) & 0x1F);
int red2 = Convert5To8((c2 >> 11) & 0x1F);
u16 ss = s & 3;
u16 tt = t & 3;
int colorSel = dxtBlock->lines[tt];
int rs = 6 - (ss << 1);
colorSel = (colorSel >> rs) & 3;
colorSel |= c1 > c2?0:4;
u32 color = 0;
switch (colorSel)
{
case 0:
case 4:
color = makeRGBA(red1, green1, blue1, 255);
break;
case 1:
case 5:
color = makeRGBA(red2, green2, blue2, 255);
break;
case 2:
color = makeRGBA(red1+(red2-red1)/3, green1+(green2-green1)/3, blue1+(blue2-blue1)/3, 255);
break;
case 3:
color = makeRGBA(red2+(red1-red2)/3, green2+(green1-green2)/3, blue2+(blue1-blue2)/3, 255);
break;
case 6:
color = makeRGBA((int)ceil((float)(red1+red2)/2), (int)ceil((float)(green1+green2)/2), (int)ceil((float)(blue1+blue2)/2), 255);
break;
case 7:
color = makeRGBA(red2, green2, blue2, 0);
break;
}
*((u32*)dst) = color;
}
break;
}
}
const char* texfmt[] = {
// pixel
"I4", "I8", "IA4", "IA8",