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pos[2] larger than 65535 is clamped to 65535 and not 0

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This commit is contained in:
raven02 2013-02-19 22:39:38 +08:00
parent 73842db159
commit 5ba1775572
1 changed files with 14 additions and 8 deletions
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22
GPU/GLES/VertexDecoder.h
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@ -192,9 +192,15 @@ public:
switch (decFmt_.posfmt) {
case DEC_FLOAT_3:
memcpy(pos, data_ + decFmt_.posoff, 12);
// pos[2] is limited between 0 and 65535
if (pos[2] < 0.0 || pos[2] > 65535.0)
pos[2] = 0.0;
// pos[2] is an integer value clamped between 0 and 65535
if (pos[2] < 0.f) {
pos[2] = 0.f;
} else if (pos[2] > 65535.f) {
pos[2] = 65535.f;
} else {
// 2D positions are always integer values: truncate float value
pos[2] = (int) pos[2];
}
break;
case DEC_S16_3:
{
@ -232,7 +238,7 @@ public:
{
const s8 *p = (s8 *)(data_ + decFmt_.nrmoff);
for (int i = 0; i < 3; i++)
nrm[i] = p[i] * (1.f / 128.0f);
nrm[i] = p[i] * (1.f / 128.f);
}
break;
default:
@ -262,8 +268,8 @@ public:
case DEC_FLOAT_2:
{
const float *f = (const float *)(data_ + decFmt_.uvoff);
uv[0] = f[0] * 2.0f;
uv[1] = f[1] * 2.0f;
uv[0] = f[0] * 2.f;
uv[1] = f[1] * 2.f;
}
break;
@ -324,7 +330,7 @@ public:
case DEC_FLOAT_3:
case DEC_FLOAT_4:
for (int i = 0; i <= decFmt_.w0fmt - DEC_FLOAT_1; i++)
weights[i] = f[i] * 2.0;
weights[i] = f[i] * 2.f;
break;
case DEC_U8_1: weights[0] = p[0] * (1.f / 128.f); break;
case DEC_U8_2: for (int i = 0; i < 2; i++) weights[i] = p[i] * (1.f / 128.f); break;
@ -351,7 +357,7 @@ public:
case DEC_FLOAT_3:
case DEC_FLOAT_4:
for (int i = 0; i <= decFmt_.w1fmt - DEC_FLOAT_1; i++)
weights[i+4] = f[i] * 2.0;
weights[i+4] = f[i] * 2.f;
break;
case DEC_U16_1: weights[4] = s[0] * (1.f / 32768.f); break;
case DEC_U16_2: for (int i = 0; i < 2; i++) weights[i+4] = s[i] * (1.f / 32768.f); break;