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//
// Copyright 2015 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.
//
// FramebufferGL.h: Defines the class interface for FramebufferGL.
#ifndef LIBANGLE_RENDERER_GL_FRAMEBUFFERGL_H_
#define LIBANGLE_RENDERER_GL_FRAMEBUFFERGL_H_
#include "libANGLE/Context.h"
#include "libANGLE/renderer/FramebufferImpl.h"
namespace rx
{
class BlitGL;
class ClearMultiviewGL;
class FunctionsGL;
class StateManagerGL;
class FramebufferGL : public FramebufferImpl
{
public:
FramebufferGL(const gl::FramebufferState &data, GLuint id, bool emulatedAlpha);
~FramebufferGL() override;
void destroy(const gl::Context *context) override;
angle::Result discard(const gl::Context *context,
size_t count,
const GLenum *attachments) override;
angle::Result invalidate(const gl::Context *context,
size_t count,
const GLenum *attachments) override;
angle::Result invalidateSub(const gl::Context *context,
size_t count,
const GLenum *attachments,
const gl::Rectangle &area) override;
angle::Result clear(const gl::Context *context, GLbitfield mask) override;
angle::Result clearBufferfv(const gl::Context *context,
GLenum buffer,
GLint drawbuffer,
const GLfloat *values) override;
angle::Result clearBufferuiv(const gl::Context *context,
GLenum buffer,
GLint drawbuffer,
const GLuint *values) override;
angle::Result clearBufferiv(const gl::Context *context,
GLenum buffer,
GLint drawbuffer,
const GLint *values) override;
angle::Result clearBufferfi(const gl::Context *context,
GLenum buffer,
GLint drawbuffer,
GLfloat depth,
GLint stencil) override;
angle::Result readPixels(const gl::Context *context,
const gl::Rectangle &area,
GLenum format,
GLenum type,
const gl::PixelPackState &pack,
gl::Buffer *packBuffer,
void *pixels) override;
angle::Result blit(const gl::Context *context,
const gl::Rectangle &sourceArea,
const gl::Rectangle &destArea,
GLbitfield mask,
GLenum filter) override;
angle::Result getSamplePosition(const gl::Context *context,
size_t index,
GLfloat *xy) const override;
// The GL back-end requires a full sync state before we call checkStatus.
bool shouldSyncStateBeforeCheckStatus() const override;
gl::FramebufferStatus checkStatus(const gl::Context *context) const override;
angle::Result syncState(const gl::Context *context,
GLenum binding,
const gl::Framebuffer::DirtyBits &dirtyBits,
gl::Command command) override;
void updateDefaultFramebufferID(GLuint framebufferID);
bool isDefault() const { return mState.isDefault(); }
void setHasEmulatedAlphaAttachment(bool hasEmulatedAlphaAttachment)
{
mHasEmulatedAlphaAttachment = hasEmulatedAlphaAttachment;
}
bool hasEmulatedAlphaChannelTextureAttachment() const;
void setFramebufferID(GLuint id) { mFramebufferID = id; }
GLuint getFramebufferID() const { return mFramebufferID; }
private:
void syncClearState(const gl::Context *context, GLbitfield mask);
void syncClearBufferState(const gl::Context *context, GLenum buffer, GLint drawBuffer);
bool modifyInvalidateAttachmentsForEmulatedDefaultFBO(
size_t count,
const GLenum *attachments,
std::vector<GLenum> *modifiedAttachments) const;
angle::Result readPixelsRowByRow(const gl::Context *context,
const gl::Rectangle &area,
GLenum originalReadFormat,
GLenum format,
GLenum type,
const gl::PixelPackState &pack,
GLubyte *pixels) const;
angle::Result readPixelsAllAtOnce(const gl::Context *context,
const gl::Rectangle &area,
GLenum originalReadFormat,
GLenum format,
GLenum type,
const gl::PixelPackState &pack,
GLubyte *pixels,
bool readLastRowSeparately) const;
void maskOutInactiveOutputDrawBuffersImpl(const gl::Context *context,
gl::DrawBufferMask targetAppliedDrawBuffers);
angle::Result adjustSrcDstRegion(const gl::Context *context,
const gl::Rectangle &sourceArea,
const gl::Rectangle &destArea,
gl::Rectangle *newSourceArea,
gl::Rectangle *newDestArea);
angle::Result clipSrcRegion(const gl::Context *context,
const gl::Rectangle &sourceArea,
const gl::Rectangle &destArea,
gl::Rectangle *newSourceArea,
gl::Rectangle *newDestArea);
GLuint mFramebufferID;
bool mHasEmulatedAlphaAttachment;
gl::DrawBufferMask mAppliedEnabledDrawBuffers;
};
} // namespace rx
#endif // LIBANGLE_RENDERER_GL_FRAMEBUFFERGL_H_