#include "OpenGLDrv.h"
#include <GfxDriver/OpenGL/OpenGLShaderProgram.h>
#include <Graphics/GL/gl.h>

namespace sp {

std::string OpenGLDrv::getName() const {
	return "OpenGL";
}

std::string OpenGLDrv::getVersion() const {

	char buf[512];
	std::string prof = "Compability";
	GLint flags;

	glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &flags);
	if (flags & GL_CONTEXT_CORE_PROFILE_BIT) {
		prof = "Core";
	}

	snprintf(buf, sizeof(buf), "%s %s", prof.c_str(), glGetString(GL_VERSION));

	return std::string(buf);
}

std::string OpenGLDrv::getVendor() const
{
	return std::string((char*)glGetString(GL_VENDOR));
}

std::string OpenGLDrv::getCardName() const
{
	return std::string((char*)glGetString(GL_RENDERER));
}

void OpenGLDrv::setViewport(int x, int y, int width, int height)
{
	glViewport(x, y, width, height);
}

void OpenGLDrv::setClearColor(float r, float g, float b, float a)
{
	glClearColor(r, g, b, 1.0f);
}

void OpenGLDrv::clearBuffer(GfxDriver::BufferFlags flags)
{
	int glFlags = 0;

	if (flags == GfxDriver::CLEAR_BUFFER_BIT) {
		glFlags |= GL_COLOR_BUFFER_BIT;
	}

	glClear(glFlags);
}

void OpenGLDrv::clearColorBuffer()
{
	glClear(GL_COLOR_BUFFER_BIT);
}

ShaderProgram* OpenGLDrv::createShaderProgram() {
	return new OpenGLShaderProgram();
}

} // namespace sp