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VertexShaderGen: De-uglify VS output structure writing

This commit is contained in:
NeoBrainX 2013-03-26 19:35:00 +01:00
parent 30f1a4b4fe
commit b75a617d8a
1 changed files with 37 additions and 21 deletions
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58
Source/Core/VideoCommon/Src/VertexShaderGen.cpp
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@ -131,33 +131,49 @@ static char text[16384];
#define WRITE p+=sprintf
char* DefineVSOutputStructMember(char* p, API_TYPE api_type, const char* type, const char* name, int var_index, const char* semantic, int semantic_index = -1)
{
WRITE(p, " %s %s", type, name);
if (var_index != -1)
WRITE(p, "%d", var_index);
if (api_type == API_OPENGL)
WRITE(p, ";\n");
else
{
if (semantic_index != -1)
WRITE(p, " : %s%d;\n", semantic, semantic_index);
else
WRITE(p, " : %s;\n", semantic);
}
return p;
}
char* GenerateVSOutputStruct(char* p, u32 components, API_TYPE ApiType)
{
// GLSL makes this ugly
// TODO: Make pretty
WRITE(p, "struct VS_OUTPUT {\n");
WRITE(p, " float4 pos %s POSITION;\n", ApiType == API_OPENGL ? ";//" : ":");
WRITE(p, " float4 colors_0 %s COLOR0;\n", ApiType == API_OPENGL ? ";//" : ":");
WRITE(p, " float4 colors_1 %s COLOR1;\n", ApiType == API_OPENGL ? ";//" : ":");
p = DefineVSOutputStructMember(p, ApiType, "float4", "pos", -1, "POSITION");
p = DefineVSOutputStructMember(p, ApiType, "float4", "colors_", 0, "COLOR", 0);
p = DefineVSOutputStructMember(p, ApiType, "float4", "colors_", 1, "COLOR", 1);
if (xfregs.numTexGen.numTexGens < 7) {
if (xfregs.numTexGen.numTexGens < 7)
{
for (unsigned int i = 0; i < xfregs.numTexGen.numTexGens; ++i)
WRITE(p, " float3 tex%d %s TEXCOORD%d;\n", i, ApiType == API_OPENGL ? ";//" : ":", i);
WRITE(p, " float4 clipPos %s TEXCOORD%d;\n", ApiType == API_OPENGL ? ";//" : ":", xfregs.numTexGen.numTexGens);
p = DefineVSOutputStructMember(p, ApiType, "float3", "tex", i, "TEXCOORD", i);
p = DefineVSOutputStructMember(p, ApiType, "float4", "clipPos", -1, "TEXCOORD", xfregs.numTexGen.numTexGens);
if(g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
WRITE(p, " float4 Normal %s TEXCOORD%d;\n", ApiType == API_OPENGL ? ";//" : ":", xfregs.numTexGen.numTexGens + 1);
} else {
// clip position is in w of first 4 texcoords
if(g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting)
{
for (int i = 0; i < 8; ++i)
WRITE(p, " float4 tex%d %s TEXCOORD%d;\n", i, ApiType == API_OPENGL? ";//" : ":", i);
}
else
{
for (unsigned int i = 0; i < xfregs.numTexGen.numTexGens; ++i)
WRITE(p, " float%d tex%d %s TEXCOORD%d;\n", i < 4 ? 4 : 3 , i, ApiType == API_OPENGL ? ";//" : ":", i);
}
p = DefineVSOutputStructMember(p, ApiType, "float4", "Normal", -1, "TEXCOORD", xfregs.numTexGen.numTexGens + 1);
}
else
{
// Store clip position in the w component of first 4 texcoords
bool ppl = g_ActiveConfig.bEnablePixelLighting && g_ActiveConfig.backend_info.bSupportsPixelLighting;
int num_texcoords = ppl ? 8 : xfregs.numTexGen.numTexGens;
for (int i = 0; i < num_texcoords; ++i)
p = DefineVSOutputStructMember(p, ApiType, (ppl || i < 4) ? "float4" : "float3", "tex", i, "TEXCOORD", i);
}
WRITE(p, "};\n");