void GenerateDepalShader(char *buffer, GEBufferFormat pixelFormat, ShaderLanguage language) {
switch (language) {
case GLSL_140:
GenerateDepalShaderFloat(buffer, pixelFormat, language);
break;
case GLSL_300:
GenerateDepalShader300(buffer, pixelFormat);
break;
case HLSL_DX9:
GenerateDepalShaderFloat(buffer, pixelFormat, language);
break;
}
}
void GenerateDepalShader(char *buffer, GEBufferFormat pixelFormat, ShaderLanguage language) {
switch (language) {
case GLSL_140:
GenerateDepalShaderFloat(buffer, pixelFormat, language);
break;
case GLSL_300:
case GLSL_VULKAN:
case HLSL_D3D11:
GenerateDepalShader300(buffer, pixelFormat, language);
break;
case HLSL_DX9:
GenerateDepalShaderFloat(buffer, pixelFormat, language);
break;
case HLSL_D3D11_LEVEL9:
default:
_assert_msg_(G3D, false, "Depal shader language not supported: %d", (int)language);
}
}
GLuint DepalShaderCache::GetDepalettizeShader(GEBufferFormat pixelFormat) {
u32 id = GenerateShaderID(pixelFormat);
bool useGL3 = gl_extensions.GLES3 || gl_extensions.VersionGEThan(3, 3);
auto shader = cache_.find(id);
if (shader != cache_.end()) {
return shader->second->program;
}
char *buffer = new char[2048];
if (useGL3) {
GenerateDepalShader300(buffer, pixelFormat);
} else {
GenerateDepalShader100(buffer, pixelFormat);
}
GLuint fragShader = glCreateShader(GL_FRAGMENT_SHADER);
const char *buf = buffer;
glShaderSource(fragShader, 1, &buf, 0);
glCompileShader(fragShader);
CheckShaderCompileSuccess(fragShader, buffer);
GLuint program = glCreateProgram();
glAttachShader(program, vertexShader_);
glAttachShader(program, fragShader);
glBindAttribLocation(program, 0, "a_position");
glBindAttribLocation(program, 1, "a_texcoord0");
if (useGL3) {
// This call is not really necessary, I think.
#ifndef MOBILE_DEVICE
glBindFragDataLocation(program, 0, "fragColor0");
#endif
}
glLinkProgram(program);
glUseProgram(program);
GLint u_tex = glGetUniformLocation(program, "tex");
GLint u_pal = glGetUniformLocation(program, "pal");
glUniform1i(u_tex, 0);
glUniform1i(u_pal, 1);
GLint linkStatus = GL_FALSE;
glGetProgramiv(program, GL_LINK_STATUS, &linkStatus);
if (linkStatus != GL_TRUE) {
GLint bufLength = 0;
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &bufLength);
if (bufLength) {
char* errorbuf = new char[bufLength];
glGetProgramInfoLog(program, bufLength, NULL, errorbuf);
#ifdef SHADERLOG
OutputDebugStringUTF8(buffer);
OutputDebugStringUTF8(errorbuf);
#endif
ERROR_LOG(G3D, "Could not link program:\n %s \n\n %s", errorbuf, buf);
delete[] errorbuf; // we're dead!
}
delete[] buffer;
return 0;
}
DepalShader *depal = new DepalShader();
depal->program = program;
depal->fragShader = fragShader;
cache_[id] = depal;
delete[] buffer;
return depal->program;
}
