string Shader::Compile(const char *name, const char *vscode, const char *pscode)
{
program = glCreateProgram();
string err;
vs = CompileGLSLShader(GL_VERTEX_SHADER, program, vscode, err);
if (!vs) return string("couldn't compile vertex shader: ") + name + "\n" + err;
ps = CompileGLSLShader(GL_FRAGMENT_SHADER, program, pscode, err);
if (!ps) return string("couldn't compile pixel shader: ") + name + "\n" + err;
glBindAttribLocation(program, 0, "apos");
glBindAttribLocation(program, 1, "anormal");
glBindAttribLocation(program, 2, "atc");
glBindAttribLocation(program, 3, "acolor");
glBindAttribLocation(program, 4, "aweights");
glBindAttribLocation(program, 5, "aindices");
Link(name);
return "";
}
string Shader::Compile(const char *name, const char *vscode, const char *pscode)
{
program = glCreateProgram();
string err;
vs = CompileGLSLShader(GL_VERTEX_SHADER, program, vscode, err); if (!vs) return string("couldn't compile vertex shader: ") + name + "\n" + err;
ps = CompileGLSLShader(GL_FRAGMENT_SHADER, program, pscode, err); if (!ps) return string("couldn't compile pixel shader: ") + name + "\n" + err;
glBindAttribLocation(program, 0, "apos");
glBindAttribLocation(program, 1, "anormal");
glBindAttribLocation(program, 2, "atc");
glBindAttribLocation(program, 3, "acolor");
glBindAttribLocation(program, 4, "aweights");
glBindAttribLocation(program, 5, "aindices");
glLinkProgram(program);
GLint status;
glGetProgramiv(program, GL_LINK_STATUS, &status);
if (status != GL_TRUE)
{
GLSLError(program, true, NULL);
throw string("linking failed for shader: ") + name;
}
mvp_i = glGetUniformLocation(program, "mvp");
col_i = glGetUniformLocation(program, "col");
camera_i = glGetUniformLocation(program, "camera");
light1_i = glGetUniformLocation(program, "light1");
bones_i = glGetUniformLocation(program, "bones");
glUseProgram(program);
for (int i = 0; i < MAX_SAMPLERS; i++)
{
tex_i[i] = glGetUniformLocation(program, (string("tex") + inttoa(i)).c_str());
if (tex_i[i] >= 0) glUniform1i(tex_i[i], i);
}
return "";
}
string Shader::Compile(const char *name, const char *cscode)
{
#if !defined(PLATFORM_ES2) && !defined(__APPLE__)
program = glCreateProgram();
string err;
cs = CompileGLSLShader(GL_COMPUTE_SHADER, program, cscode, err);
if (!cs) return string("couldn't compile compute shader: ") + name + "\n" + err;
Link(name);
return "";
#else
return "compute shaders not supported";
#endif
}
GLuint CompileGLSLShaderFromFile(GLenum type, const char* filename) {
FILE *shaderFile;
char *text;
long size;
//Check for no filename
if (filename == NULL) return 0;
//Must read files as binary to prevent problems from newline translation
shaderFile = fopen(filename, "rb");
if (shaderFile == NULL) {
CLOGGER_ERROR(WCLogManager::RootLogger(), "CompileGLSLShaderFromFile - Unable to open " << filename); return 0; }
fseek(shaderFile, 0, SEEK_END);
size = ftell(shaderFile);
fseek(shaderFile, 0, SEEK_SET);
text = new char[size+1];
fread(text, size, 1, shaderFile);
fclose(shaderFile);
text[size] = '\0';
GLuint object = CompileGLSLShader(type, text);
delete []text;
return object;
}