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//
// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Framebuffer.h: Defines the gl::Framebuffer class. Implements GL framebuffer
// objects and related functionality. [OpenGL ES 2.0.24] section 4.4 page 105.
#ifndef LIBGLESV2_FRAMEBUFFER_H_
#define LIBGLESV2_FRAMEBUFFER_H_
#include "common/angleutils.h"
#include "common/RefCountObject.h"
#include "constants.h"
namespace rx
{
class Renderer;
}
namespace gl
{
class Renderbuffer;
class Colorbuffer;
class Depthbuffer;
class Stencilbuffer;
class DepthStencilbuffer;
class Framebuffer
{
public:
explicit Framebuffer(rx::Renderer *renderer);
virtual ~Framebuffer();
void setColorbuffer(unsigned int colorAttachment, GLenum type, GLuint colorbuffer);
void setDepthbuffer(GLenum type, GLuint depthbuffer);
void setStencilbuffer(GLenum type, GLuint stencilbuffer);
void detachTexture(GLuint texture);
void detachRenderbuffer(GLuint renderbuffer);
unsigned int getRenderTargetSerial(unsigned int colorAttachment) const;
unsigned int getDepthbufferSerial() const;
unsigned int getStencilbufferSerial() const;
Renderbuffer *getColorbuffer(unsigned int colorAttachment) const;
Renderbuffer *getDepthbuffer() const;
Renderbuffer *getStencilbuffer() const;
Renderbuffer *getDepthOrStencilbuffer() const;
Renderbuffer *getReadColorbuffer() const;
GLenum getReadColorbufferType() const;
Renderbuffer *getFirstColorbuffer() const;
GLenum getColorbufferType(unsigned int colorAttachment) const;
GLenum getDepthbufferType() const;
GLenum getStencilbufferType() const;
GLuint getColorbufferHandle(unsigned int colorAttachment) const;
GLuint getDepthbufferHandle() const;
GLuint getStencilbufferHandle() const;
GLenum getDrawBufferState(unsigned int colorAttachment) const;
void setDrawBufferState(unsigned int colorAttachment, GLenum drawBuffer);
bool isEnabledColorAttachment(unsigned int colorAttachment) const;
bool hasEnabledColorAttachment() const;
bool hasStencil() const;
int getSamples() const;
virtual GLenum completeness() const;
protected:
GLenum mColorbufferTypes[IMPLEMENTATION_MAX_DRAW_BUFFERS];
BindingPointer<Renderbuffer> mColorbufferPointers[IMPLEMENTATION_MAX_DRAW_BUFFERS];
GLenum mDrawBufferStates[IMPLEMENTATION_MAX_DRAW_BUFFERS];
GLenum mReadBufferState;
GLenum mDepthbufferType;
BindingPointer<Renderbuffer> mDepthbufferPointer;
GLenum mStencilbufferType;
BindingPointer<Renderbuffer> mStencilbufferPointer;
rx::Renderer *mRenderer;
private:
DISALLOW_COPY_AND_ASSIGN(Framebuffer);
Renderbuffer *lookupRenderbuffer(GLenum type, GLuint handle) const;
};
class DefaultFramebuffer : public Framebuffer
{
public:
DefaultFramebuffer(rx::Renderer *Renderer, Colorbuffer *colorbuffer, DepthStencilbuffer *depthStencil);
virtual GLenum completeness() const;
private:
DISALLOW_COPY_AND_ASSIGN(DefaultFramebuffer);
};
}
#endif // LIBGLESV2_FRAMEBUFFER_H_
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