Index: content/common/gpu/media/gpu_video_decode_accelerator_helpers.h |
diff --git a/content/common/gpu/media/gpu_video_decode_accelerator_helpers.h b/content/common/gpu/media/gpu_video_decode_accelerator_helpers.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..1717f5926035adec6640d6bfc63945d5a49b3c34 |
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+++ b/content/common/gpu/media/gpu_video_decode_accelerator_helpers.h |
@@ -0,0 +1,59 @@ |
+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_HELPERS_H_ |
+#define CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_HELPERS_H_ |
+ |
+#include "base/callback.h" |
+#include "base/memory/weak_ptr.h" |
+ |
+namespace gfx { |
+class GLContext; |
+} |
+ |
+namespace gl { |
+class GLImage; |
+} |
+ |
+namespace gpu { |
+namespace gles2 { |
+class GLES2Decoder; |
+} |
+} |
+ |
+namespace content { |
+ |
+// Helpers/defines for specific VideoDecodeAccelerator implementations in GPU |
+// process. Which callbacks are required depends on the implementation. |
+// |
+// Note that these callbacks may be called more than once, and so must own/share |
+// ownership of any objects bound to them. |
+// |
+// Unless specified otherwise, these callbacks must be executed on the GPU Child |
+// thread (i.e. the thread which the VDAs are initialized on). |
+ |
+// Return current GLContext. |
+using GetGLContextCallback = base::Callback<gfx::GLContext*(void)>; |
+ |
+// Make the applicable GL context current. To be called by VDAs before |
+// executing any GL calls. Return true on success, false otherwise. |
+using MakeGLContextCurrentCallback = base::Callback<bool(void)>; |
+ |
+// Bind |image| to |client_texture_id| given |texture_target|. If |
+// |can_bind_to_sampler| is true, then the image may be used as a sampler |
+// directly, otherwise a copy to a staging buffer is required. |
+// Return true on success, false otherwise. |
+using BindGLImageCallback = |
+ base::Callback<bool(uint32_t client_texture_id, |
+ uint32_t texture_target, |
+ const scoped_refptr<gl::GLImage>& image, |
+ bool can_bind_to_sampler)>; |
+ |
+// Return a WeakPtr to a GLES2Decoder, if one is available. |
+using GetGLES2DecoderCallback = |
+ base::Callback<base::WeakPtr<gpu::gles2::GLES2Decoder>(void)>; |
+ |
+} // namespace content |
+ |
+#endif // CONTENT_COMMON_GPU_MEDIA_GPU_VIDEO_DECODE_ACCELERATOR_HELPERS_H_ |