unsigned int Renderer::CreateFragmentShader(const std::string& shaderText)
{
std::string version = GetSpecifiedVersion(shaderText);
size_t vertexShaderKeyLocation = shaderText.find("void VSmain()");
size_t fragmentShaderKeyLocation = shaderText.find("void FSmain()");
std::string fragmentShaderText = std::string(shaderText);
String_FindAndReplace(fragmentShaderText, "void FSmain()", "void main()");
if(vertexShaderKeyLocation != std::string::npos)
EraseShaderFunction(fragmentShaderText, "void VSmain()");
String_ReplaceAll(fragmentShaderText, "attribute", "", "\n");
if(version.compare("330") == 0)
{
String_ReplaceAll(fragmentShaderText, "varying", "in");
String_FindAndReplace(fragmentShaderText, "gl_FragColor", "OUT_Fragment_Color");
std::string newFragout = "out vec4 OUT_Fragment_Color;\n";
size_t start = fragmentShaderText.find("\n");
fragmentShaderText.replace(start + 1,0,newFragout);
}
return CreateShader(fragmentShaderText, GL_FRAGMENT_SHADER);
}
static sdef(String, Sanitize, String name) {
String out = String_Clone(name);
String_ReplaceAll(&out, $("?"), $(" "));
String_ReplaceAll(&out, $(":"), $(" "));
String_ReplaceAll(&out, $("/"), $("-"));
String_ReplaceAll(&out, $(" "), $(" "));
String_Copy(&out, String_Trim(out));
if (String_EndsWith(out, $("."))) {
out.len--;
}
return out;
}
unsigned int Renderer::CreateVertexShader(const std::string& shaderText)
{
std::string version = GetSpecifiedVersion(shaderText);
size_t vertexShaderKeyLocation = shaderText.find("void VSmain()");
size_t fragmentShaderKeyLocation = shaderText.find("void FSmain()");
std::string vertexShaderText = std::string(shaderText);
String_FindAndReplace(vertexShaderText, "void VSmain()", "void main()");
if(fragmentShaderKeyLocation != std::string::npos)
EraseShaderFunction(vertexShaderText, "void FSmain()");
if(version.compare("330") == 0)
{
String_ReplaceAll(vertexShaderText, "attribute", "layout(location = %d) in", "", 0, true);
String_ReplaceAll(vertexShaderText, "varying", "out");
}
return CreateShader(vertexShaderText, GL_VERTEX_SHADER);
//std::string vertexShaderText = "#version 330\n\n";
//std::string token = "";
//std::string lastToken = "";
//size_t tokenLocation = String_NextToken(shaderText, 0, &token);
//bool appendNext = false;
//int attributeCounter = 0;
//std::string nextAppendEnding = "";
//std::string nextAppendBefore = "";
//std::string appendBefore = "";
//while(tokenLocation != 0)
//{
// if(appendNext)
// {
// appendNext = false;
// vertexShaderText += (nextAppendBefore + token + nextAppendEnding);
// continue;
// }
// if(token.compare("cbuffer") == 0)
// appendBefore = "uniform ";
// if(token.compare("}") == 0)
// {
// nextAppendBefore = "";
// appendBefore = "";
// }
// if(lastToken.compare("struct") == 0 && token.compare("VS_IN") == 0)
// {
// appendBefore = "layout (location = 0) in ";
// nextAppendBefore = "VS_IN_";
// }
// if(lastToken.compare("struct") == 0 && token.compare("PS_IN") == 0)
// {
// appendBefore = "out ";
// nextAppendBefore = "";
// }
// if(token.compare("Texture2D") == 0)
// {
// appendNext = true;
// vertexShaderText += "uniform sampler2D ";
// nextAppendEnding = ";\n";
// }
// if(token.compare("matrix") == 0)
// {
// appendNext = true;
// vertexShaderText += (appendBefore + "mat4 ");
// nextAppendEnding = ";\n";
// }
// if(token.compare("float4") == 0)
// {
// appendNext = true;
// vertexShaderText += (appendBefore + "vec4 ");
// nextAppendEnding = ";\n";
// }
// if(token.compare("float2") == 0)
// {
// appendNext = true;
// vertexShaderText += (appendBefore + "vec2 ");
// nextAppendEnding = ";\n";
// }
// //vertexShaderText += token;
// //vertexShaderText += " ";
// //if(token.compare(";") == 0)
// // vertexShaderText += "\n";
// //if(lastToken.compare("}") == 0)
// // vertexShaderText += "\n";
// lastToken = token;
// tokenLocation = String_NextToken(shaderText, tokenLocation, &token);
// std::cout << token << std::endl;
//}
//std::cout << vertexShaderText << std::endl;
//return 0;
}