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Unified Diff: content/common/gpu/media/vaapi_picture.h

Issue 817023005: Reland: Refactor Vaapi video decoder/encoder in preparation of Freon support (Closed) Base URL: https://chromium.googlesource.com/chromium/src@master
Patch Set: Created 6 years ago
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Index: content/common/gpu/media/vaapi_picture.h
diff --git a/content/common/gpu/media/vaapi_picture.h b/content/common/gpu/media/vaapi_picture.h
new file mode 100644
index 0000000000000000000000000000000000000000..fdb7a7e98d32ad9c8c1f19fd99a98680055356a4
--- /dev/null
+++ b/content/common/gpu/media/vaapi_picture.h
@@ -0,0 +1,73 @@
+// Copyright 2014 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.
+//
+// This file contains an interface of output pictures for the Vaapi
+// video decoder. This is implemented by different window system
+// (X11/Ozone) and used by VaapiVideoDecodeAccelerator to produce
+// output pictures.
+
+#ifndef CONTENT_COMMON_GPU_MEDIA_VAAPI_PICTURE_H_
+#define CONTENT_COMMON_GPU_MEDIA_VAAPI_PICTURE_H_
+
+#include "base/callback.h"
+#include "base/memory/linked_ptr.h"
+#include "base/memory/ref_counted.h"
+#include "base/threading/non_thread_safe.h"
+#include "ui/gfx/size.h"
+
+namespace content {
+
+class VASurface;
+class VaapiWrapper;
+
+// Picture is native pixmap abstraction (X11/Ozone).
+class VaapiPicture : public base::NonThreadSafe {
+ public:
+ virtual ~VaapiPicture() {}
+
+ // Try to allocate the underlying resources for the picture.
+ virtual bool Initialize() = 0;
+
+ int32 picture_buffer_id() const { return picture_buffer_id_; }
+ uint32 texture_id() const { return texture_id_; }
+ const gfx::Size& size() const { return size_; }
+
+ // Downloads the |va_surface| into the picture, potentially scaling
+ // it if needed.
+ virtual bool DownloadFromSurface(
+ const scoped_refptr<VASurface>& va_surface) = 0;
+
+ // Create a VaapiPicture of |size| to be associated with
+ // |picture_buffer_id| and bound to |texture_id|.
+ // |make_context_current| is provided for the GL operations.
+ static linked_ptr<VaapiPicture> CreatePicture(
+ const scoped_refptr<VaapiWrapper>& vaapi_wrapper,
+ const base::Callback<bool(void)> make_context_current,
+ int32 picture_buffer_id,
+ uint32 texture_id,
+ const gfx::Size& size);
+
+ // Get the texture target used to bind EGLImages (either
+ // GL_TEXTURE_2D on X11 or GL_TEXTURE_EXTERNAL_OES on DRM).
+ static uint32 GetGLTextureTarget();
+
+ protected:
+ VaapiPicture(int32 picture_buffer_id,
+ uint32 texture_id,
+ const gfx::Size& size)
+ : picture_buffer_id_(picture_buffer_id),
+ texture_id_(texture_id),
+ size_(size) {}
+
+ private:
+ int32 picture_buffer_id_;
+ uint32 texture_id_;
+ gfx::Size size_;
+
+ DISALLOW_COPY_AND_ASSIGN(VaapiPicture);
+};
+
+} // namespace content
+
+#endif // CONTENT_COMMON_GPU_MEDIA_VAAPI_PICTURE_H_

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