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fix/simplify some texture functions

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This commit is contained in:
Brian 2007-04-17 09:16:30 -06:00
parent 893b368a82
commit 468a33d19a
1 changed files with 10 additions and 23 deletions
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33
src/mesa/shader/slang/library/slang_common_builtin.gc
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@ -1609,11 +1609,8 @@ vec4 texture1D(const sampler1D sampler, const float coord)
vec4 texture1DProj(const sampler1D sampler, const vec2 coord)
{
// new coord with .z moved to .w
vec4 coord4;
coord4.x = coord.x;
coord4.w = coord.y;
__asm vec4_texp1d __retVal, sampler, coord4;
// need to swizzle .y into .w
__asm vec4_texp1d __retVal, sampler, coord.xyyy;
}
vec4 texture1DProj(const sampler1D sampler, const vec4 coord)
@ -1629,11 +1626,8 @@ vec4 texture2D(const sampler2D sampler, const vec2 coord)
vec4 texture2DProj(const sampler2D sampler, const vec3 coord)
{
// new coord with .z moved to .w
vec4 coord4;
coord4.xy = coord.xy;
coord4.w = coord.z;
__asm vec4_texp2d __retVal, sampler, coord4;
// need to swizzle 'z' into 'w'.
__asm vec4_texp2d __retVal, sampler, coord.xyzz;
}
vec4 texture2DProj(const sampler2D sampler, const vec4 coord)
@ -1667,11 +1661,8 @@ vec4 shadow1D(const sampler1DShadow sampler, const vec3 coord)
vec4 shadow1DProj(const sampler1DShadow sampler, const vec4 coord)
{
vec4 pcoord;
pcoord.x = coord.x / coord.w;
pcoord.z = coord.z;
pcoord.w = bias;
__asm vec4_tex1d __retVal, sampler, pcoord;
// .s and .p will be divided by .q
__asm vec4_texp1d __retVal, sampler, coord;
}
vec4 shadow2D(const sampler2DShadow sampler, const vec3 coord)
@ -1681,10 +1672,8 @@ vec4 shadow2D(const sampler2DShadow sampler, const vec3 coord)
vec4 shadow2DProj(const sampler2DShadow sampler, const vec4 coord)
{
vec4 pcoord;
pcoord.xy = coord.xy / coord.w;
pcoord.z = coord.z;
__asm vec4_tex2d __retVal, sampler, pcoord;
// .s, .t and .p will be divided by .q
__asm vec4_texp2d __retVal, sampler, coord;
}
@ -1696,10 +1685,8 @@ vec4 texture2DRect(const sampler2DRect sampler, const vec2 coord)
vec4 texture2DRectProj(const sampler2DRect sampler, const vec3 coord)
{
// do projection here
vec4 pcoord;
pcoord.xy = coord.xy / coord.z;
__asm vec4_texp_rect __retVal, sampler, pcoord;
// need to swizzle .y into .w
__asm vec4_texp_rect __retVal, sampler, coord.xyzz;
}
vec4 texture2DRectProj(const sampler2DRect sampler, const vec4 coord)