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66 lines
2.1 KiB
C++
66 lines
2.1 KiB
C++
// Copyright 2014 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef GPU_COMMAND_BUFFER_SERVICE_IMAGE_FACTORY_H_
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#define GPU_COMMAND_BUFFER_SERVICE_IMAGE_FACTORY_H_
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#include "base/memory/ref_counted.h"
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#include "gpu/gpu_export.h"
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#include "ui/gfx/geometry/size.h"
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#include "ui/gfx/gpu_memory_buffer.h"
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namespace gfx {
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class GLImage;
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}
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namespace gpu {
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struct Capabilities;
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class GPU_EXPORT ImageFactory {
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public:
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ImageFactory();
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// Returns a valid GpuMemoryBuffer format given a valid internalformat as
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// defined by CHROMIUM_gpu_memory_buffer_image.
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static gfx::GpuMemoryBuffer::Format ImageFormatToGpuMemoryBufferFormat(
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unsigned internalformat);
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// Returns a valid GpuMemoryBuffer usage given a valid usage as defined by
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// CHROMIUM_gpu_memory_buffer_image.
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static gfx::GpuMemoryBuffer::Usage ImageUsageToGpuMemoryBufferUsage(
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unsigned usage);
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// Returns true if |internalformat| is compatible with |format|.
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static bool IsImageFormatCompatibleWithGpuMemoryBufferFormat(
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unsigned internalformat,
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gfx::GpuMemoryBuffer::Format format);
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// Returns true if |format| is supported by |capabilities|.
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static bool IsGpuMemoryBufferFormatSupported(
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gfx::GpuMemoryBuffer::Format format,
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const Capabilities& capabilities);
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// Returns true if |size| is valid for |format|.
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static bool IsImageSizeValidForGpuMemoryBufferFormat(
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const gfx::Size& size,
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gfx::GpuMemoryBuffer::Format format);
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// Creates a GLImage instance for GPU memory buffer identified by |handle|.
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// |client_id| should be set to the client requesting the creation of instance
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// and can be used by factory implementation to verify access rights.
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virtual scoped_refptr<gfx::GLImage> CreateImageForGpuMemoryBuffer(
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const gfx::GpuMemoryBufferHandle& handle,
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const gfx::Size& size,
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gfx::GpuMemoryBuffer::Format format,
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unsigned internalformat,
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int client_id) = 0;
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protected:
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virtual ~ImageFactory();
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};
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} // namespace gpu
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#endif // GPU_COMMAND_BUFFER_SERVICE_IMAGE_FACTORY_H_
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