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added option to use XFB in GL, but XFB support still needs work. modified viewport to include scissor offset.

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git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@879 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
donkopunchstania
2008-10-15 14:07:03 +00:00
parent 70eebcb3a3
commit bbbe898839
17 changed files with 416 additions and 100 deletions
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67
Source/Core/VideoCommon/Src/XFBConvert.cpp
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@ -34,26 +34,53 @@ void yuv2rgb(int y, int u, int v, int &r, int &g, int &b)
r = bound((76283*(y - 16) + 104595*(v - 128))>>16);
}
} // namespace
void ConvertXFB(u32 *dst, const u8* _pXFB, int width, int height)
void rgb2yuv(int r, int g, int b, int &y, int &u, int &v)
{
const unsigned char *src = _pXFB;
for (int y = 0; y < height; y++)
{
for (int x = 0; x < width; x++, src += 4)
{
int Y1 = src[0];
int U = src[1];
int Y2 = src[2];
int V = src[3];
int r, g, b;
yuv2rgb(Y1,U,V, r,g,b);
*dst++ = 0xFF000000 | (r<<16) | (g<<8) | (b);
yuv2rgb(Y2,U,V, r,g,b);
*dst++ = 0xFF000000 | (r<<16) | (g<<8) | (b);
}
}
y = (((16843 * r) + (33030 * g) + (6423 * b)) >> 16) + 16;
v = (((28770 * r) - (24117 * g) - (4653 * b)) >> 16) + 128;
u = ((-(9699 * r) - (19071 * g) + (28770 * b)) >> 16) + 128;
}
} // namespace
void ConvertFromXFB(u32 *dst, const u8* _pXFB, int width, int height)
{
const unsigned char *src = _pXFB;
u32 numBlocks = (width * height) / 2;
for (u32 i = 0; i < numBlocks; i++, src += 4)
{
int Y1 = src[0];
int U = src[1];
int Y2 = src[2];
int V = src[3];
int r, g, b;
yuv2rgb(Y1,U,V, r,g,b);
*dst++ = 0xFF000000 | (r<<16) | (g<<8) | (b);
yuv2rgb(Y2,U,V, r,g,b);
*dst++ = 0xFF000000 | (r<<16) | (g<<8) | (b);
}
}
void ConvertToXFB(u32 *dst, const u8* _pEFB, int width, int height)
{
const unsigned char *src = _pEFB;
u32 numBlocks = (width * height) / 2;
for (u32 i = 0; i < numBlocks; i++)
{
int y1 = (((16843 * src[0]) + (33030 * src[1]) + (6423 * src[2])) >> 16) + 16;
int u1 = ((-(9699 * src[0]) - (19071 * src[1]) + (28770 * src[2])) >> 16) + 128;
src += 4;
int y2 = (((16843 * src[0]) + (33030 * src[1]) + (6423 * src[2])) >> 16) + 16;
int v2 = (((28770 * src[0]) - (24117 * src[1]) - (4653 * src[2])) >> 16) + 128;
src += 4;
*dst++ = (v2 << 24) | (y2 << 16) | (u1 << 8) | (y1);
}
}