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mesa: glsl: better mod() functions

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This commit is contained in:
Brian Paul
2008-08-11 17:35:21 -06:00
parent 3eea56dc93
commit 42b262d01a
1 changed files with 15 additions and 21 deletions
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36
src/mesa/shader/slang/library/slang_common_builtin.gc
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@@ -872,35 +872,29 @@ vec4 mod(const vec4 a, const float b)
vec2 mod(const vec2 a, const vec2 b)
{
float oneOverBx, oneOverBy;
__asm float_rcp oneOverBx, b.x;
__asm float_rcp oneOverBy, b.y;
__retVal.x = a.x - b.x * floor(a.x * oneOverBx);
__retVal.y = a.y - b.y * floor(a.y * oneOverBy);
vec2 oneOverB;
__asm float_rcp oneOverB.x, b.x;
__asm float_rcp oneOverB.y, b.y;
__retVal = a - b * floor(a * oneOverB);
}
vec3 mod(const vec3 a, const vec3 b)
{
float oneOverBx, oneOverBy, oneOverBz;
__asm float_rcp oneOverBx, b.x;
__asm float_rcp oneOverBy, b.y;
__asm float_rcp oneOverBz, b.z;
__retVal.x = a.x - b.x * floor(a.x * oneOverBx);
__retVal.y = a.y - b.y * floor(a.y * oneOverBy);
__retVal.z = a.z - b.z * floor(a.z * oneOverBz);
vec3 oneOverB;
__asm float_rcp oneOverB.x, b.x;
__asm float_rcp oneOverB.y, b.y;
__asm float_rcp oneOverB.z, b.z;
__retVal = a - b * floor(a * oneOverB);
}
vec4 mod(const vec4 a, const vec4 b)
{
float oneOverBx, oneOverBy, oneOverBz, oneOverBw;
__asm float_rcp oneOverBx, b.x;
__asm float_rcp oneOverBy, b.y;
__asm float_rcp oneOverBz, b.z;
__asm float_rcp oneOverBw, b.w;
__retVal.x = a.x - b.x * floor(a.x * oneOverBx);
__retVal.y = a.y - b.y * floor(a.y * oneOverBy);
__retVal.z = a.z - b.z * floor(a.z * oneOverBz);
__retVal.w = a.w - b.w * floor(a.w * oneOverBw);
vec4 oneOverB;
__asm float_rcp oneOverB.x, b.x;
__asm float_rcp oneOverB.y, b.y;
__asm float_rcp oneOverB.z, b.z;
__asm float_rcp oneOverB.w, b.w;
__retVal = a - b * floor(a * oneOverB);
}