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#include <asura-utils/type.h>
#include "../core_config.h"
#include "gl.h"
#include "shader.h"
using namespace AEMath;
namespace AsuraEngine
{
namespace Graphics
{
static bool _instantiated = false;
//
OpenGL gl;
OpenGL::OpenGL()
{
// Ҫڶʵ
ASSERT(!_instantiated);
_instantiated = true;
}
OpenGL::~OpenGL()
{
}
//------------------------------------------------------------------------------//
void OpenGL::SetViewport(const Recti v)
{
glViewport(v.x, v.y, v.w, v.h);
state.viewport = v;
}
Recti OpenGL::GetViewport()
{
return state.viewport;
}
void OpenGL::UseShader(Shader* shader)
{
glUseProgram(shader->GetGLProgramHandle());
state.shader = shader;
}
void OpenGL::UnuseShader()
{
state.shader = nullptr;
}
}
}
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