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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_OZONE_IMAGE_GL_TEXTURES_HOLDER_H_
#define GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_OZONE_IMAGE_GL_TEXTURES_HOLDER_H_
#include <memory>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_refptr.h"
#include "base/numerics/checked_math.h"
#include "gpu/gpu_gles2_export.h"
#include "ui/gfx/buffer_types.h"
namespace gfx {
class NativePixmap;
class Size;
} // namespace gfx
namespace ui {
class NativePixmapGLBinding;
} // namespace ui
namespace gpu {
class SharedImageBacking;
namespace gles2 {
class TexturePassthrough;
} // namespace gles2
// Stores gles2::TexturePassthroughs for OzoneImageBacking.
class GPU_GLES2_EXPORT OzoneImageGLTexturesHolder
: public base::RefCounted<OzoneImageGLTexturesHolder> {
public:
// Creates an OzoneImageGLTexturesHolder with gles2::TexturePassthroughs.
static scoped_refptr<OzoneImageGLTexturesHolder> CreateAndInitTexturesHolder(
SharedImageBacking* backing,
scoped_refptr<gfx::NativePixmap> pixmap);
void MarkContextLost();
bool WasContextLost();
// See |cache_counter_|.
void OnAddedToCache();
void OnRemovedFromCache();
size_t GetCacheCount() const;
// Destroys textures that this holder holds. The caller must ensure it make a
// correct context as current. Eg - the context which was used when this
// holder was created or the compatible context that was used to reuse this
// holder.
void DestroyTextures();
const scoped_refptr<gles2::TexturePassthrough>& texture(int plane_index) {
return textures_[plane_index];
}
size_t GetNumberOfTextures() const;
private:
friend class base::RefCounted<OzoneImageGLTexturesHolder>;
explicit OzoneImageGLTexturesHolder();
~OzoneImageGLTexturesHolder();
// Initializes this holder with gles2::TexturePassthroughs. On failure,
// returns false.
bool Initialize(SharedImageBacking* backing,
scoped_refptr<gfx::NativePixmap> pixmap);
// Creates and stores a gles2::TexturePassthrough. On failure, returns false.
bool CreateAndStoreTexture(SharedImageBacking* backing,
scoped_refptr<gfx::NativePixmap> pixmap,
gfx::BufferFormat buffer_format,
gfx::BufferPlane buffer_plane,
const gfx::Size& size);
// A counter that is used by OzoneImageBacking to identify how many times this
// holder has been cached.
base::CheckedNumeric<size_t> cache_count_ = 0;
bool context_lost_ = false;
std::vector<std::unique_ptr<ui::NativePixmapGLBinding>> bindings_;
std::vector<scoped_refptr<gles2::TexturePassthrough>> textures_;
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_SHARED_IMAGE_OZONE_IMAGE_GL_TEXTURES_HOLDER_H_
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