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PixelShaderGen: Move constant multiplication to constant generation. 

No need to do this within the shader per pixel if it can be done once.
This commit is contained in:
degasus 2016-04-09 02:36:19 +02:00
parent 94098a50c2
commit 10e4f7e7bf
2 changed files with 11 additions and 8 deletions
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6
Source/Core/VideoCommon/PixelShaderGen.cpp
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@ -467,7 +467,7 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
{
out.Write("uv%d.xy", i);
}
out.Write(" * " I_TEXDIMS"[%d].zw * 128.0);\n", i);
out.Write(" * " I_TEXDIMS"[%d].zw);\n", i);
// TODO: S24 overflows here?
}
}
@ -501,7 +501,7 @@ static T GeneratePixelShader(DSTALPHA_MODE dstAlphaMode, API_TYPE ApiType)
out.Write("\ttempcoord = int2(0, 0);\n");
out.Write("\tint3 iindtex%d = ", i);
SampleTexture<T>(out, "(float2(tempcoord)/128.0)", "abg", texmap, ApiType);
SampleTexture<T>(out, "float2(tempcoord)", "abg", texmap, ApiType);
}
}
@ -836,7 +836,7 @@ static void WriteStage(T& out, pixel_shader_uid_data* uid_data, int n, API_TYPE
uid_data->SetTevindrefTexmap(i, texmap);
out.Write("\ttextemp = ");
SampleTexture<T>(out, "(float2(tevcoord.xy)/128.0)", texswap, texmap, ApiType);
SampleTexture<T>(out, "(tevcoord.xy)", texswap, texmap, ApiType);
}
else
{

13
Source/Core/VideoCommon/PixelShaderManager.cpp
View File

@ -137,13 +137,16 @@ void PixelShaderManager::SetDestAlpha()
void PixelShaderManager::SetTexDims(int texmapid, u32 width, u32 height)
{
float rwidth = 1.0f / (width * 128.0f);
float rheight = 1.0f / (height * 128.0f);
// TODO: move this check out to callee. There we could just call this function on texture changes
// or better, use textureSize() in glsl
if (constants.texdims[texmapid][0] != 1.0f/width || constants.texdims[texmapid][1] != 1.0f/height)
if (constants.texdims[texmapid][0] != rwidth || constants.texdims[texmapid][1] != rheight)
dirty = true;
constants.texdims[texmapid][0] = 1.0f/width;
constants.texdims[texmapid][1] = 1.0f/height;
constants.texdims[texmapid][0] = rwidth;
constants.texdims[texmapid][1] = rheight;
}
void PixelShaderManager::SetZTextureBias()
@ -238,8 +241,8 @@ void PixelShaderManager::SetZTextureTypeChanged()
void PixelShaderManager::SetTexCoordChanged(u8 texmapid)
{
TCoordInfo& tc = bpmem.texcoords[texmapid];
constants.texdims[texmapid][2] = (float)(tc.s.scale_minus_1 + 1);
constants.texdims[texmapid][3] = (float)(tc.t.scale_minus_1 + 1);
constants.texdims[texmapid][2] = (float)(tc.s.scale_minus_1 + 1) * 128.0f;
constants.texdims[texmapid][3] = (float)(tc.t.scale_minus_1 + 1) * 128.0f;
dirty = true;
}