| // 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. |
| |
| #include "cc/playback/filter_display_item.h" |
| |
| #include "base/strings/stringprintf.h" |
| #include "base/trace_event/trace_event_argument.h" |
| #include "cc/output/render_surface_filters.h" |
| #include "skia/ext/refptr.h" |
| #include "third_party/skia/include/core/SkCanvas.h" |
| #include "third_party/skia/include/core/SkImageFilter.h" |
| #include "third_party/skia/include/core/SkPaint.h" |
| #include "third_party/skia/include/core/SkXfermode.h" |
| #include "ui/gfx/skia_util.h" |
| |
| namespace cc { |
| |
| FilterDisplayItem::FilterDisplayItem() { |
| } |
| |
| FilterDisplayItem::~FilterDisplayItem() { |
| } |
| |
| void FilterDisplayItem::SetNew(const FilterOperations& filters, |
| const gfx::RectF& bounds) { |
| filters_ = filters; |
| bounds_ = bounds; |
| |
| // FilterOperations doesn't expose its capacity, but size is probably good |
| // enough. |
| size_t external_memory_usage = filters_.size() * sizeof(filters_.at(0)); |
| DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 1 /* op_count */, |
| external_memory_usage); |
| } |
| |
| void FilterDisplayItem::Raster(SkCanvas* canvas, |
| const gfx::Rect& canvas_target_playback_rect, |
| SkPicture::AbortCallback* callback) const { |
| canvas->save(); |
| canvas->translate(bounds_.x(), bounds_.y()); |
| |
| skia::RefPtr<SkImageFilter> image_filter = |
| RenderSurfaceFilters::BuildImageFilter( |
| filters_, gfx::SizeF(bounds_.width(), bounds_.height())); |
| #ifdef SK_SAVE_LAYER_BOUNDS_ARE_FILTERED |
| // TODO(senorblanco): remove this once callsites updated (crbug.com/525748) |
| SkRect boundaries; |
| image_filter->computeFastBounds( |
| SkRect::MakeWH(bounds_.width(), bounds_.height()), &boundaries); |
| #else |
| SkRect boundaries = SkRect::MakeWH(bounds_.width(), bounds_.height()); |
| #endif |
| |
| SkPaint paint; |
| paint.setXfermodeMode(SkXfermode::kSrcOver_Mode); |
| paint.setImageFilter(image_filter.get()); |
| canvas->saveLayer(&boundaries, &paint); |
| |
| canvas->translate(-bounds_.x(), -bounds_.y()); |
| } |
| |
| void FilterDisplayItem::AsValueInto( |
| base::trace_event::TracedValue* array) const { |
| array->AppendString(base::StringPrintf("FilterDisplayItem bounds: [%s]", |
| bounds_.ToString().c_str())); |
| } |
| |
| EndFilterDisplayItem::EndFilterDisplayItem() { |
| DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 0 /* op_count */, |
| 0 /* external_memory_usage */); |
| } |
| |
| EndFilterDisplayItem::~EndFilterDisplayItem() { |
| } |
| |
| void EndFilterDisplayItem::Raster(SkCanvas* canvas, |
| const gfx::Rect& canvas_target_playback_rect, |
| SkPicture::AbortCallback* callback) const { |
| canvas->restore(); |
| canvas->restore(); |
| } |
| |
| void EndFilterDisplayItem::AsValueInto( |
| base::trace_event::TracedValue* array) const { |
| array->AppendString("EndFilterDisplayItem"); |
| } |
| |
| } // namespace cc |