| // 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. |
| |
| #ifndef CC_RASTER_RASTER_SOURCE_H_ |
| #define CC_RASTER_RASTER_SOURCE_H_ |
| |
| #include <stddef.h> |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "cc/cc_export.h" |
| #include "cc/debug/rendering_stats_instrumentation.h" |
| #include "cc/layers/recording_source.h" |
| #include "cc/paint/image_id.h" |
| #include "gpu/command_buffer/client/raster_interface.h" |
| #include "third_party/skia/include/core/SkPicture.h" |
| #include "ui/gfx/color_space.h" |
| |
| namespace gfx { |
| class AxisTransform2d; |
| } // namespace gfx |
| |
| namespace cc { |
| class DisplayItemList; |
| class DrawImage; |
| class ImageProvider; |
| |
| class CC_EXPORT RasterSource : public base::RefCountedThreadSafe<RasterSource> { |
| public: |
| struct CC_EXPORT PlaybackSettings { |
| PlaybackSettings(); |
| PlaybackSettings(const PlaybackSettings&); |
| PlaybackSettings(PlaybackSettings&&); |
| ~PlaybackSettings(); |
| |
| // If set to true, we should use LCD text. |
| bool use_lcd_text = true; |
| |
| // Specifies the sample count if MSAA is enabled for this tile. |
| int msaa_sample_count = 0; |
| |
| ImageProvider* image_provider = nullptr; |
| }; |
| |
| RasterSource(const RasterSource&) = delete; |
| RasterSource& operator=(const RasterSource&) = delete; |
| |
| // Helper function to apply a few common operations before passing the canvas |
| // to the shorter version. This is useful for rastering into tiles. |
| // canvas is expected to be backed by a tile, with a default state. |
| // raster_transform will be applied to the display list, rastering the list |
| // into the "content space". |
| // canvas_bitmap_rect defines the extent of the tile in the content space, |
| // i.e. contents in the rect will be cropped and translated onto the canvas. |
| // canvas_playback_rect can be used to replay only part of the recording in, |
| // the content space, so only a sub-rect of the tile gets rastered. |
| void PlaybackToCanvas(SkCanvas* canvas, |
| const gfx::Size& content_size, |
| const gfx::Rect& canvas_bitmap_rect, |
| const gfx::Rect& canvas_playback_rect, |
| const gfx::AxisTransform2d& raster_transform, |
| const PlaybackSettings& settings) const; |
| |
| // Raster this RasterSource into the given canvas. Canvas states such as |
| // CTM and clip region will be respected. This function will replace pixels |
| // in the clip region without blending. |
| // |
| // Virtual for testing. |
| // |
| // Note that this should only be called after the image decode controller has |
| // been set, which happens during commit. |
| virtual void PlaybackToCanvas(SkCanvas* canvas, |
| ImageProvider* image_provider) const; |
| |
| // Returns whether the given rect at given scale is of solid color in |
| // this raster source, as well as the solid color value. |
| bool PerformSolidColorAnalysis(gfx::Rect content_rect, SkColor* color) const; |
| |
| // Returns true iff the whole raster source is of solid color. |
| bool IsSolidColor() const; |
| |
| // Returns the color of the raster source if it is solid color. The results |
| // are unspecified if IsSolidColor returns false. |
| SkColor GetSolidColor() const; |
| |
| // Returns the recorded layer size of this raster source. |
| gfx::Size GetSize() const; |
| |
| // Returns the content size of this raster source at a particular scale. |
| gfx::Size GetContentSize(float content_scale) const; |
| |
| // Populate the given list with all images that may overlap the given |
| // rect in layer space. |
| void GetDiscardableImagesInRect(const gfx::Rect& layer_rect, |
| std::vector<const DrawImage*>* images) const; |
| |
| // Return true iff this raster source can raster the given rect in layer |
| // space. |
| bool CoversRect(const gfx::Rect& layer_rect) const; |
| |
| // Returns true if this raster source has anything to rasterize. |
| bool HasRecordings() const; |
| |
| // Valid rectangle in which everything is recorded and can be rastered from. |
| gfx::Rect RecordedViewport() const; |
| |
| // Tracing functionality. |
| void DidBeginTracing(); |
| void AsValueInto(base::trace_event::TracedValue* array) const; |
| size_t GetMemoryUsage() const; |
| |
| const scoped_refptr<DisplayItemList>& GetDisplayItemList() const { |
| return display_list_; |
| } |
| |
| float recording_scale_factor() const { return recording_scale_factor_; } |
| |
| SkColor background_color() const { return background_color_; } |
| |
| bool requires_clear() const { return requires_clear_; } |
| |
| base::flat_map<PaintImage::Id, PaintImage::DecodingMode> |
| TakeDecodingModeMap(); |
| |
| size_t* max_op_size_hint() { return &max_op_size_hint_; } |
| |
| protected: |
| // RecordingSource is the only class that can create a raster source. |
| friend class RecordingSource; |
| friend class base::RefCountedThreadSafe<RasterSource>; |
| |
| explicit RasterSource(const RecordingSource* other); |
| virtual ~RasterSource(); |
| |
| void ClearForOpaqueRaster(SkCanvas* raster_canvas, |
| const gfx::Size& content_size, |
| const gfx::Rect& canvas_bitmap_rect, |
| const gfx::Rect& canvas_playback_rect) const; |
| |
| // The serialized size for the largest op in this RasterSource. This is |
| // accessed only on the raster threads with the context lock acquired. |
| size_t max_op_size_hint_ = |
| gpu::raster::RasterInterface::kDefaultMaxOpSizeHint; |
| |
| // These members are const as this raster source may be in use on another |
| // thread and so should not be touched after construction. |
| const scoped_refptr<DisplayItemList> display_list_; |
| const size_t painter_reported_memory_usage_; |
| const SkColor background_color_; |
| const bool requires_clear_; |
| const bool is_solid_color_; |
| const SkColor solid_color_; |
| const gfx::Rect recorded_viewport_; |
| const gfx::Size size_; |
| const int slow_down_raster_scale_factor_for_debug_; |
| const float recording_scale_factor_; |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_RASTER_RASTER_SOURCE_H_ |