Test X11 header pollution

content/common/gpu/media/avda_codec_image.h

-// Copyright 2015 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_AVDA_CODEC_IMAGE_H_
-#define CONTENT_COMMON_GPU_MEDIA_AVDA_CODEC_IMAGE_H_
-
-#include <stdint.h>
-
-#include <memory>
-
-#include "base/macros.h"
-#include "content/common/gpu/media/avda_shared_state.h"
-#include "gpu/command_buffer/service/gl_stream_texture_image.h"
-
-namespace ui {
-class ScopedMakeCurrent;
-}
-
-namespace content {
-
-// GLImage that renders MediaCodec buffers to a SurfaceTexture or SurfaceView as
-// needed in order to draw them.
-class AVDACodecImage : public gpu::gles2::GLStreamTextureImage {
- public:
-  AVDACodecImage(int picture_buffer_id,
-                 const scoped_refptr<AVDASharedState>& shared_state,
-                 media::VideoCodecBridge* codec,
-                 const base::WeakPtr<gpu::gles2::GLES2Decoder>& decoder,
-                 const scoped_refptr<gfx::SurfaceTexture>& surface_texture);
-
-  // gl::GLImage implementation
-  void Destroy(bool have_context) override;
-  gfx::Size GetSize() override;
-  unsigned GetInternalFormat() override;
-  bool BindTexImage(unsigned target) override;
-  void ReleaseTexImage(unsigned target) override;
-  bool CopyTexImage(unsigned target) override;
-  bool CopyTexSubImage(unsigned target,
-                       const gfx::Point& offset,
-                       const gfx::Rect& rect) override;
-  bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
-                            int z_order,
-                            gfx::OverlayTransform transform,
-                            const gfx::Rect& bounds_rect,
-                            const gfx::RectF& crop_rect) override;
-  void OnMemoryDump(base::trace_event::ProcessMemoryDump* pmd,
-                    uint64_t process_tracing_id,
-                    const std::string& dump_name) override;
-  // gpu::gles2::GLStreamTextureMatrix implementation
-  void GetTextureMatrix(float xform[16]) override;
-
-  // Decoded buffer index that has the image for us to display.
-  void SetMediaCodecBufferIndex(int buffer_index);
-
-  // Set the size of the current image.
-  void SetSize(const gfx::Size& size);
-
-  enum class UpdateMode {
-    // Discards the codec buffer, no UpdateTexImage().
-    DISCARD_CODEC_BUFFER,
-
-    // Renders to back buffer, no UpdateTexImage(); can only be used with a
-    // valid |surface_texture_|.
-    RENDER_TO_BACK_BUFFER,
-
-    // Renders to the back buffer. When used with a SurfaceView, promotion to
-    // the front buffer is automatic. When using a |surface_texture_|,
-    // UpdateTexImage() is called to promote the back buffer into the front.
-    RENDER_TO_FRONT_BUFFER
-  };
-
-  // Releases the attached codec buffer (if not already released) indicated by
-  // |codec_buffer_index_| and updates the surface if specified by the given
-  // |update_mode|.  See UpdateMode documentation for details.
-  void UpdateSurface(UpdateMode update_mode);
-
-  // Updates the MediaCodec for this image; clears |codec_buffer_index_|.
-  void CodecChanged(media::MediaCodecBridge* codec);
-
-  void SetTexture(gpu::gles2::Texture* texture);
-
-  // Indicates if the codec buffer has been released to the back buffer.
-  bool is_rendered_to_back_buffer() const {
-    return codec_buffer_index_ == kUpdateOnly;
-  }
-
-  // Indicates if the codec buffer has been released to the front or back
-  // buffer.
-  bool is_rendered() const {
-    return codec_buffer_index_ <= kInvalidCodecBufferIndex;
-  }
-
- protected:
-  ~AVDACodecImage() override;
-
- private:
-  enum { kInvalidCodecBufferIndex = -1, kUpdateOnly = -2 };
-
-  // Make sure that the surface texture's front buffer is current.  This will
-  // save / restore the current context.  It will optionally restore the texture
-  // bindings in the surface texture's context, based on |mode|.  This is
-  // intended as a hint if we don't need to change contexts.  If we do need to
-  // change contexts, then we'll always preserve the texture bindings in the
-  // both contexts.  In other words, the caller is telling us whether it's
-  // okay to change the binding in the current context.
-  enum RestoreBindingsMode { kDontRestoreBindings, kDoRestoreBindings };
-  void UpdateSurfaceTexture(RestoreBindingsMode mode);
-
-  // Internal helper for UpdateSurface() that allows callers to specify the
-  // RestoreBindingsMode when a SurfaceTexture is already attached prior to
-  // calling this method.
-  void UpdateSurfaceInternal(UpdateMode update_mode,
-                             RestoreBindingsMode attached_bindings_mode);
-
-  // Releases the attached codec buffer (if not already released) indicated by
-  // |codec_buffer_index_|. Never updates the actual surface. See UpdateMode
-  // documentation for details. For the purposes of this function the values
-  // RENDER_TO_FRONT_BUFFER and RENDER_TO_BACK_BUFFER do the same thing.
-  void ReleaseOutputBuffer(UpdateMode update_mode);
-
-  // Attach the surface texture to our GL context to whatever texture is bound
-  // on the active unit.
-  void AttachSurfaceTextureToContext();
-
-  // Make shared_state_->context() current if it isn't already.
-  std::unique_ptr<ui::ScopedMakeCurrent> MakeCurrentIfNeeded();
-
-  // Return whether there is a codec buffer that we haven't rendered yet.  Will
-  // return false also if there's no codec or we otherwise can't update.
-  bool IsCodecBufferOutstanding() const;
-
-  // Shared state between the AVDA and all AVDACodecImages.
-  scoped_refptr<AVDASharedState> shared_state_;
-
-  // The MediaCodec buffer index that we should render. Only valid if not equal
-  // to |kInvalidCodecBufferIndex|.
-  int codec_buffer_index_;
-
-  // Our image size.
-  gfx::Size size_;
-
-  // May be null.
-  media::MediaCodecBridge* media_codec_;
-
-  const base::WeakPtr<gpu::gles2::GLES2Decoder> decoder_;
-
-  // The SurfaceTexture to render to. This is null when rendering to a
-  // SurfaceView.
-  const scoped_refptr<gfx::SurfaceTexture> surface_texture_;
-
-  // Should we detach |surface_texture_| from its GL context when we are
-  // deleted?  This happens when it's using our Texture's texture handle.
-  bool detach_surface_texture_on_destruction_;
-
-  // The texture that we're attached to.
-  gpu::gles2::Texture* texture_;
-
-  // Texture matrix of the front buffer of the surface texture.
-  float gl_matrix_[16];
-
-  // The picture buffer id attached to this image.
-  int picture_buffer_id_;
-
-  DISALLOW_COPY_AND_ASSIGN(AVDACodecImage);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_COMMON_GPU_MEDIA_AVDA_CODEC_IMAGE_H_