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/* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef SHARED_SURFACE_GL_H_
#define SHARED_SURFACE_GL_H_
#include "ScopedGLHelpers.h"
#include "SharedSurface.h"
#include "SurfaceTypes.h"
#include "GLContextTypes.h"
#include "gfxTypes.h"
#include "mozilla/Mutex.h"
#include <queue>
namespace mozilla {
namespace gl {
class GLContext;
} // namespace gl
namespace gfx {
class DataSourceSurface;
} // namespace gfx
} // namespace mozilla
namespace mozilla {
namespace gl {
// For readback and bootstrapping:
class SharedSurface_Basic
: public SharedSurface
{
public:
static UniquePtr<SharedSurface_Basic> Create(GLContext* gl,
const GLFormats& formats,
const gfx::IntSize& size,
bool hasAlpha);
static UniquePtr<SharedSurface_Basic> Wrap(GLContext* gl,
const gfx::IntSize& size,
bool hasAlpha,
GLuint tex);
static SharedSurface_Basic* Cast(SharedSurface* surf) {
MOZ_ASSERT(surf->mType == SharedSurfaceType::Basic);
return (SharedSurface_Basic*)surf;
}
protected:
const GLuint mTex;
const bool mOwnsTex;
GLuint mFB;
SharedSurface_Basic(GLContext* gl,
const gfx::IntSize& size,
bool hasAlpha,
GLuint tex,
bool ownsTex);
public:
virtual ~SharedSurface_Basic();
virtual void LockProdImpl() override {}
virtual void UnlockProdImpl() override {}
virtual void ProducerAcquireImpl() override {}
virtual void ProducerReleaseImpl() override {}
virtual GLuint ProdTexture() override {
return mTex;
}
virtual bool ToSurfaceDescriptor(layers::SurfaceDescriptor* const out_descriptor) override {
MOZ_CRASH("GFX: ToSurfaceDescriptor");
return false;
}
};
class SurfaceFactory_Basic
: public SurfaceFactory
{
public:
SurfaceFactory_Basic(GLContext* gl, const SurfaceCaps& caps,
const layers::TextureFlags& flags);
virtual UniquePtr<SharedSurface> CreateShared(const gfx::IntSize& size) override {
bool hasAlpha = mReadCaps.alpha;
return SharedSurface_Basic::Create(mGL, mFormats, size, hasAlpha);
}
};
// Using shared GL textures:
class SharedSurface_GLTexture
: public SharedSurface
{
public:
static UniquePtr<SharedSurface_GLTexture> Create(GLContext* prodGL,
const GLFormats& formats,
const gfx::IntSize& size,
bool hasAlpha);
static SharedSurface_GLTexture* Cast(SharedSurface* surf) {
MOZ_ASSERT(surf->mType == SharedSurfaceType::SharedGLTexture);
return (SharedSurface_GLTexture*)surf;
}
protected:
const GLuint mTex;
GLsync mSync;
SharedSurface_GLTexture(GLContext* prodGL,
const gfx::IntSize& size,
bool hasAlpha,
GLuint tex)
: SharedSurface(SharedSurfaceType::SharedGLTexture,
AttachmentType::GLTexture,
prodGL,
size,
hasAlpha, true)
, mTex(tex)
, mSync(0)
{
}
public:
virtual ~SharedSurface_GLTexture();
virtual void LockProdImpl() override {}
virtual void UnlockProdImpl() override {}
virtual void ProducerAcquireImpl() override {}
virtual void ProducerReleaseImpl() override;
virtual GLuint ProdTexture() override {
return mTex;
}
virtual bool ToSurfaceDescriptor(layers::SurfaceDescriptor* const out_descriptor) override;
};
class SurfaceFactory_GLTexture
: public SurfaceFactory
{
public:
SurfaceFactory_GLTexture(GLContext* prodGL,
const SurfaceCaps& caps,
const RefPtr<layers::LayersIPCChannel>& allocator,
const layers::TextureFlags& flags)
: SurfaceFactory(SharedSurfaceType::SharedGLTexture, prodGL, caps, allocator, flags)
{
}
virtual UniquePtr<SharedSurface> CreateShared(const gfx::IntSize& size) override {
bool hasAlpha = mReadCaps.alpha;
return SharedSurface_GLTexture::Create(mGL, mFormats, size, hasAlpha);
}
};
} // namespace gl
} /* namespace mozilla */
#endif /* SHARED_SURFACE_GL_H_ */
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