inline void VL_glBindFragDataLocation(GLuint program, GLuint colorNumber, const GLchar *name)
{
if (glBindFragDataLocation)
glBindFragDataLocation(program, colorNumber, name);
else
if (glBindFragDataLocationEXT)
glBindFragDataLocationEXT(program, colorNumber, name);
else
VL_UNSUPPORTED_FUNC();
}
//loades the shaders into a program, retruning the programs id
GLuint glslLoadShaderProgram( std::string vertex, std::string fragment ){
//a quick check
if( vertex.empty() || fragment.empty() ){
printf( "ERROR: Unable to load programs, program defined as NULL" );
return 0;
}
printf( "INFO: Loading Shaders %s %s\n", vertex.c_str(), fragment.c_str());
//temp ids
GLuint vsID, fsID, program;
//make the vertex shader
const char* vertex_data = ReadShaderFile( vertex );
vsID = glCreateShader( GL_VERTEX_SHADER );
glShaderSource( vsID, 1, &vertex_data, NULL );
glCompileShader( vsID );
printShaderLog( vsID );
delete [] vertex_data;
//make the fragment shader
const char * fragment_data = ReadShaderFile( fragment );
fsID = glCreateShader( GL_FRAGMENT_SHADER );
glShaderSource( fsID, 1, &fragment_data, NULL );
glCompileShader( fsID );
printShaderLog( fsID );
delete [] fragment_data;
//make and link the program
program = glCreateProgram();
glAttachShader( program, vsID );
glAttachShader( program, fsID );
glBindFragDataLocationEXT( program, 0, "pixelColor" );
glLinkProgram( program );
printProgramLog( program );
//and return, best of luck
return program;
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_EXTGPUShader4_nglBindFragDataLocationEXT(JNIEnv *__env, jclass clazz, jint program, jint color, jlong nameAddress) {
glBindFragDataLocationEXTPROC glBindFragDataLocationEXT = (glBindFragDataLocationEXTPROC)tlsGetFunction(1744);
intptr_t name = (intptr_t)nameAddress;
UNUSED_PARAM(clazz)
glBindFragDataLocationEXT(program, color, name);
}
JNIEXPORT void JNICALL Java_org_lwjgl_opengl_EXTGpuShader4_nglBindFragDataLocationEXT(JNIEnv *env, jclass clazz, jint program, jint colorNumber, jobject name, jint name_position, jlong function_pointer) {
const GLchar *name_address = ((const GLchar *)(*env)->GetDirectBufferAddress(env, name)) + name_position;
glBindFragDataLocationEXTPROC glBindFragDataLocationEXT = (glBindFragDataLocationEXTPROC)((intptr_t)function_pointer);
glBindFragDataLocationEXT(program, colorNumber, name_address);
}
