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// Copyright 2013 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 MEDIA_RENDERERS_VIDEO_RESOURCE_UPDATER_H_
#define MEDIA_RENDERERS_VIDEO_RESOURCE_UPDATER_H_
#include <stddef.h>
#include <stdint.h>
#include <list>
#include <memory>
#include <vector>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "base/trace_event/memory_dump_provider.h"
#include "components/viz/common/resources/release_callback.h"
#include "components/viz/common/resources/resource_format.h"
#include "components/viz/common/resources/resource_id.h"
#include "components/viz/common/resources/transferable_resource.h"
#include "media/base/media_export.h"
#include "ui/gfx/buffer_types.h"
#include "ui/gfx/geometry/size.h"
namespace gfx {
class Rect;
class RRectF;
class Transform;
} // namespace gfx
namespace viz {
class ClientResourceProvider;
class ContextProvider;
class RasterContextProvider;
class RenderPass;
class SharedBitmapReporter;
} // namespace viz
namespace media {
class PaintCanvasVideoRenderer;
class VideoFrame;
// Specifies what type of data is contained in the mailboxes, as well as how
// many mailboxes will be present.
enum class VideoFrameResourceType {
NONE,
YUV,
RGB,
RGBA_PREMULTIPLIED,
RGBA,
STREAM_TEXTURE,
};
class MEDIA_EXPORT VideoFrameExternalResources {
public:
VideoFrameResourceType type = VideoFrameResourceType::NONE;
std::vector<viz::TransferableResource> resources;
std::vector<viz::ReleaseCallback> release_callbacks;
// Used by hardware textures which do not return values in the 0-1 range.
// After a lookup, subtract offset and multiply by multiplier.
float offset = 0.f;
float multiplier = 1.f;
uint32_t bits_per_channel = 8;
VideoFrameExternalResources();
VideoFrameExternalResources(VideoFrameExternalResources&& other);
VideoFrameExternalResources& operator=(VideoFrameExternalResources&& other);
~VideoFrameExternalResources();
};
// VideoResourceUpdater is used by the video system to produce frame content as
// resources consumable by the display compositor.
class MEDIA_EXPORT VideoResourceUpdater
: public base::trace_event::MemoryDumpProvider {
public:
// For GPU compositing |context_provider| should be provided and for software
// compositing |shared_bitmap_reporter| should be provided. If there is a
// non-null |context_provider| we assume GPU compositing.
VideoResourceUpdater(viz::ContextProvider* context_provider,
viz::RasterContextProvider* raster_context_provider,
viz::SharedBitmapReporter* shared_bitmap_reporter,
viz::ClientResourceProvider* resource_provider,
bool use_stream_video_draw_quad,
bool use_gpu_memory_buffer_resources,
bool use_r16_texture,
int max_resource_size);
~VideoResourceUpdater() override;
// For each CompositorFrame the following sequence is expected:
// 1. ObtainFrameResources(): Import resources for the next video frame with
// viz::ClientResourceProvider. This will reuse existing GPU or
// SharedMemory buffers if possible, otherwise it will allocate new ones.
// 2. AppendQuads(): Add DrawQuads to CompositorFrame for video.
// 3. ReleaseFrameResources(): After the CompositorFrame has been submitted,
// remove imported resources from viz::ClientResourceProvider.
void ObtainFrameResources(scoped_refptr<VideoFrame> video_frame);
void ReleaseFrameResources();
// Appends a quad representing |frame| to |render_pass|.
// At most one quad is expected to be appended, this is enforced by the users
// of this class (e.g: VideoFrameSubmitter). Producing only one quad will
// allow viz to optimize compositing when the only content changing per-frame
// is the video.
void AppendQuads(viz::RenderPass* render_pass,
scoped_refptr<VideoFrame> frame,
gfx::Transform transform,
gfx::Rect quad_rect,
gfx::Rect visible_quad_rect,
const gfx::RRectF& rounded_corner_bounds,
gfx::Rect clip_rect,
bool is_clipped,
bool context_opaque,
float draw_opacity,
int sorting_context_id);
// TODO(kylechar): This is only public for testing, make private.
VideoFrameExternalResources CreateExternalResourcesFromVideoFrame(
scoped_refptr<VideoFrame> video_frame);
viz::ResourceFormat YuvResourceFormat(int bits_per_channel);
private:
class PlaneResource;
class HardwarePlaneResource;
class SoftwarePlaneResource;
// A resource that will be embedded in a DrawQuad in the next CompositorFrame.
// Each video plane will correspond to one FrameResource.
struct FrameResource {
viz::ResourceId id;
gfx::Size size_in_pixels;
};
bool software_compositor() const {
return context_provider_ == nullptr && raster_context_provider_ == nullptr;
}
// Obtain a resource of the right format by either recycling an
// unreferenced but appropriately formatted resource, or by
// allocating a new resource.
// Additionally, if the |unique_id| and |plane_index| match, then
// it is assumed that the resource has the right data already and will only be
// used for reading, and so is returned even if it is still referenced.
// Passing -1 for |plane_index| avoids returning referenced
// resources.
PlaneResource* RecycleOrAllocateResource(const gfx::Size& resource_size,
viz::ResourceFormat resource_format,
const gfx::ColorSpace& color_space,
int unique_id,
int plane_index);
PlaneResource* AllocateResource(const gfx::Size& plane_size,
viz::ResourceFormat format,
const gfx::ColorSpace& color_space);
// Create a copy of a texture-backed source video frame in a new GL_TEXTURE_2D
// texture. This is used when there are multiple GPU threads (Android WebView)
// and the source video frame texture can't be used on the output GL context.
// https://crbug.com/582170
void CopyHardwarePlane(VideoFrame* video_frame,
const gfx::ColorSpace& resource_color_space,
const gpu::MailboxHolder& mailbox_holder,
VideoFrameExternalResources* external_resources);
// Get resources ready to be appended into DrawQuads. This is used for GPU
// compositing most of the time, except for the cases mentioned in
// CreateForSoftwarePlanes().
VideoFrameExternalResources CreateForHardwarePlanes(
scoped_refptr<VideoFrame> video_frame);
// Get resources ready to be appended into DrawQuads. This is always used for
// software compositing. This is also used for GPU compositing when the input
// video frame has no textures.
VideoFrameExternalResources CreateForSoftwarePlanes(
scoped_refptr<VideoFrame> video_frame);
void RecycleResource(uint32_t plane_resource_id,
const gpu::SyncToken& sync_token,
bool lost_resource);
void ReturnTexture(const scoped_refptr<VideoFrame>& video_frame,
const gpu::SyncToken& sync_token,
bool lost_resource);
// base::trace_event::MemoryDumpProvider implementation.
bool OnMemoryDump(const base::trace_event::MemoryDumpArgs& args,
base::trace_event::ProcessMemoryDump* pmd) override;
viz::ContextProvider* const context_provider_;
viz::RasterContextProvider* const raster_context_provider_;
viz::SharedBitmapReporter* const shared_bitmap_reporter_;
viz::ClientResourceProvider* const resource_provider_;
const bool use_stream_video_draw_quad_;
const bool use_gpu_memory_buffer_resources_;
// TODO(crbug.com/759456): Remove after r16 is used without the flag.
const bool use_r16_texture_;
const int max_resource_size_;
const int tracing_id_;
std::unique_ptr<PaintCanvasVideoRenderer> video_renderer_;
uint32_t next_plane_resource_id_ = 1;
// Temporary pixel buffer when converting between formats.
std::unique_ptr<uint8_t[]> upload_pixels_;
size_t upload_pixels_size_ = 0;
VideoFrameResourceType frame_resource_type_;
float frame_resource_offset_;
float frame_resource_multiplier_;
uint32_t frame_bits_per_channel_;
// Resources that will be placed into quads by the next call to
// AppendDrawQuads().
std::vector<FrameResource> frame_resources_;
// Resources allocated by VideoResourceUpdater. Used to recycle resources so
// we can reduce the number of allocations and data transfers.
std::vector<std::unique_ptr<PlaneResource>> all_resources_;
base::WeakPtrFactory<VideoResourceUpdater> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(VideoResourceUpdater);
};
} // namespace media
#endif // MEDIA_RENDERERS_VIDEO_RESOURCE_UPDATER_H_