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Fix performance issues on certain legacy graphics hardware that isn't capable of copying an integer.

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This reverts commit 52dacaa3e3.
This commit is contained in:
Jordan Woyak
2013-02-25 20:45:01 -06:00
parent c86b892f95
commit 380f22ca0e
2 changed files with 6 additions and 2 deletions
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6
Source/Core/VideoCommon/Src/VertexShaderGen.cpp
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@ -208,7 +208,7 @@ const char *GenerateVertexShaderCode(u32 components, API_TYPE ApiType)
{
WRITE(p, "ATTRIN float4 rawpos; // ATTR%d,\n", SHADER_POSITION_ATTRIB);
if (components & VB_HAS_POSMTXIDX)
WRITE(p, "ATTRIN int posmtx; // ATTR%d,\n", SHADER_POSMTX_ATTRIB);
WRITE(p, "ATTRIN float fposmtx; // ATTR%d,\n", SHADER_POSMTX_ATTRIB);
if (components & VB_HAS_NRM0)
WRITE(p, "ATTRIN float3 rawnorm0; // ATTR%d,\n", SHADER_NORM0_ATTRIB);
if (components & VB_HAS_NRM1)
@ -305,6 +305,10 @@ const char *GenerateVertexShaderCode(u32 components, API_TYPE ApiType)
{
WRITE(p, "int posmtx = blend_indices.x * 255.0f;\n");
}
else
{
WRITE(p, "int posmtx = int(fposmtx);\n");
}
WRITE(p, "float4 pos = float4(dot(" I_TRANSFORMMATRICES"[posmtx], rawpos), dot(" I_TRANSFORMMATRICES"[posmtx+1], rawpos), dot(" I_TRANSFORMMATRICES"[posmtx+2], rawpos), 1);\n");