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pos[0]/[1] are signed while pos[2] is unsigned in 2D transform

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raven02 2013-02-20 01:37:19 +08:00
parent 9e38174b14
commit 2745bb4f14
1 changed files with 20 additions and 4 deletions
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24
GPU/GLES/VertexDecoder.h
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@ -212,16 +212,32 @@ public:
break;
case DEC_S16_3:
{
// X and Y are signed 16 bit, Z is unsigned 16 bit
const s16 *s = (const s16 *)(data_ + decFmt_.posoff);
for (int i = 0; i < 3; i++)
pos[i] = s[i] * (1.f / 32767.f);
const u16 *u = (const u16 *)(data_ + decFmt_.posoff);
if ((vtype_ >> 23) & 0x1) {
for (int i = 0; i < 2; i++)
pos[i] = s[i] ;
pos[2] = u[2] ;
} else {
for (int i = 0; i < 3; i++)
pos[i] = s[i] * (1.f / 32767.f);
}
}
break;
case DEC_S8_3:
{
// X and Y are signed 8 bit, Z is unsigned 8 bit
const s8 *b = (const s8 *)(data_ + decFmt_.posoff);
for (int i = 0; i < 3; i++)
pos[i] = b[i] * (1.f / 127.f);
const u8 *u = (const u8 *)(data_ + decFmt_.posoff);
if ((vtype_ >> 23) & 0x1) {
for (int i = 0; i < 2; i++)
pos[i] = b[i] ;
pos[2] = u[2] ;
} else {
for (int i = 0; i < 3; i++)
pos[i] = b[i] * (1.f / 127.f);
}
}
break;
default: