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// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Framebuffer.h: Defines the Framebuffer class. Implements GL framebuffer
// objects and related functionality. [OpenGL ES 2.0.24] section 4.4 page 105.
#ifndef LIBGLES_CM_FRAMEBUFFER_H_
#define LIBGLES_CM_FRAMEBUFFER_H_
#include "common/Object.hpp"
#include "common/Image.hpp"
#include <GLES/gl.h>
namespace es1
{
class Renderbuffer;
class Colorbuffer;
class Depthbuffer;
class Stencilbuffer;
class DepthStencilbuffer;
class Framebuffer
{
public:
Framebuffer();
virtual ~Framebuffer();
void setColorbuffer(GLenum type, GLuint colorbuffer, GLint level = 0);
void setDepthbuffer(GLenum type, GLuint depthbuffer, GLint level = 0);
void setStencilbuffer(GLenum type, GLuint stencilbuffer, GLint level = 0);
void detachTexture(GLuint texture);
void detachRenderbuffer(GLuint renderbuffer);
egl::Image *getRenderTarget();
egl::Image *getDepthBuffer();
egl::Image *getStencilBuffer();
Renderbuffer *getColorbuffer();
Renderbuffer *getDepthbuffer();
Renderbuffer *getStencilbuffer();
GLenum getColorbufferType();
GLenum getDepthbufferType();
GLenum getStencilbufferType();
GLuint getColorbufferName();
GLuint getDepthbufferName();
GLuint getStencilbufferName();
bool hasStencil();
virtual GLenum completeness();
GLenum completeness(int &width, int &height, int &samples);
GLenum getImplementationColorReadFormat();
GLenum getImplementationColorReadType();
protected:
GLenum mColorbufferType;
gl::BindingPointer<Renderbuffer> mColorbufferPointer;
GLenum mDepthbufferType;
gl::BindingPointer<Renderbuffer> mDepthbufferPointer;
GLenum mStencilbufferType;
gl::BindingPointer<Renderbuffer> mStencilbufferPointer;
private:
Renderbuffer *lookupRenderbuffer(GLenum type, GLuint handle, GLint level) const;
};
class DefaultFramebuffer : public Framebuffer
{
public:
DefaultFramebuffer(Colorbuffer *colorbuffer, DepthStencilbuffer *depthStencil);
};
}
#endif // LIBGLES_CM_FRAMEBUFFER_H_