cc: Refactor TileTaskWorkerPool.

cc/raster/raster_buffer_provider.cc

 // 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.
 
-#include "cc/raster/tile_task_worker_pool.h"
+#include "cc/raster/raster_buffer_provider.h"
 
 #include <stddef.h>
 
 #include "base/trace_event/trace_event.h"
 #include "cc/playback/raster_source.h"
 #include "cc/raster/texture_compressor.h"
 #include "cc/resources/platform_color.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkSurface.h"
 
 namespace cc {
 
-TileTaskWorkerPool::TileTaskWorkerPool() {}
+RasterBufferProvider::RasterBufferProvider() {}
 
-TileTaskWorkerPool::~TileTaskWorkerPool() {}
-
-// static
-void TileTaskWorkerPool::ScheduleTasksOnOriginThread(
-    RasterBufferProvider* provider,
-    TaskGraph* graph) {
-  TRACE_EVENT0("cc", "TileTaskWorkerPool::ScheduleTasksOnOriginThread");
-
-  for (TaskGraph::Node::Vector::iterator it = graph->nodes.begin();
-       it != graph->nodes.end(); ++it) {
-    TaskGraph::Node& node = *it;
-    TileTask* task = static_cast<TileTask*>(node.task);
-
-    if (!task->HasBeenScheduled()) {
-      task->WillSchedule();
-      task->ScheduleOnOriginThread(provider);
-      task->DidSchedule();
-    }
-  }
-}
+RasterBufferProvider::~RasterBufferProvider() {}
 
 namespace {
 
 bool IsSupportedPlaybackToMemoryFormat(ResourceFormat format) {
   switch (format) {
     case RGBA_4444:
     case RGBA_8888:
     case BGRA_8888:
     case ETC1:
       return true;
     case ALPHA_8:
     case LUMINANCE_8:
     case RGB_565:
     case RED_8:
     case LUMINANCE_F16:
       return false;
   }
   NOTREACHED();
   return false;
 }
 
 }  // anonymous namespace
 
 // static
-void TileTaskWorkerPool::PlaybackToMemory(
+void RasterBufferProvider::PlaybackToMemory(
     void* memory,
     ResourceFormat format,
     const gfx::Size& size,
     size_t stride,
     const RasterSource* raster_source,
     const gfx::Rect& canvas_bitmap_rect,
     const gfx::Rect& canvas_playback_rect,
     float scale,
     const RasterSource::PlaybackSettings& playback_settings) {
-  TRACE_EVENT0("cc", "TileTaskWorkerPool::PlaybackToMemory");
+  TRACE_EVENT0("cc", "RasterBufferProvider::PlaybackToMemory");
 
   DCHECK(IsSupportedPlaybackToMemoryFormat(format)) << format;
 
   // Uses kPremul_SkAlphaType since the result is not known to be opaque.
   SkImageInfo info =
       SkImageInfo::MakeN32(size.width(), size.height(), kPremul_SkAlphaType);
 
   // Use unknown pixel geometry to disable LCD text.
   SkSurfaceProps surface_props(0, kUnknown_SkPixelGeometry);
   if (raster_source->CanUseLCDText()) {
@@ skipping 19 matching lines @@
     case ETC1: {
       sk_sp<SkSurface> surface = SkSurface::MakeRaster(info, &surface_props);
       // TODO(reveman): Improve partial raster support by reducing the size of
       // playback rect passed to PlaybackToCanvas. crbug.com/519070
       raster_source->PlaybackToCanvas(surface->getCanvas(), canvas_bitmap_rect,
                                       canvas_bitmap_rect, scale,
                                       playback_settings);
 
       if (format == ETC1) {
         TRACE_EVENT0("cc",
-                     "TileTaskWorkerPool::PlaybackToMemory::CompressETC1");
+                     "RasterBufferProvider::PlaybackToMemory::CompressETC1");
         DCHECK_EQ(size.width() % 4, 0);
         DCHECK_EQ(size.height() % 4, 0);
         std::unique_ptr<TextureCompressor> texture_compressor =
             TextureCompressor::Create(TextureCompressor::kFormatETC1);
         SkPixmap pixmap;
         surface->peekPixels(&pixmap);
         texture_compressor->Compress(
             reinterpret_cast<const uint8_t*>(pixmap.addr()),
             reinterpret_cast<uint8_t*>(memory), size.width(), size.height(),
             TextureCompressor::kQualityHigh);
       } else {
         TRACE_EVENT0("cc",
-                     "TileTaskWorkerPool::PlaybackToMemory::ConvertRGBA4444");
+                     "RasterBufferProvider::PlaybackToMemory::ConvertRGBA4444");
         SkImageInfo dst_info =
             SkImageInfo::Make(info.width(), info.height(),
                               ResourceFormatToClosestSkColorType(format),
                               info.alphaType(), info.profileType());
         bool rv = surface->readPixels(dst_info, memory, stride, 0, 0);
         DCHECK(rv);
       }
       return;
     }
     case ALPHA_8:
     case LUMINANCE_8:
     case RGB_565:
     case RED_8:
     case LUMINANCE_F16:
       NOTREACHED();
       return;
   }
 
   NOTREACHED();
 }
 
-bool TileTaskWorkerPool::ResourceFormatRequiresSwizzle(ResourceFormat format) {
+bool RasterBufferProvider::ResourceFormatRequiresSwizzle(
+    ResourceFormat format) {
   switch (format) {
     case RGBA_8888:
     case BGRA_8888:
       // Initialize resource using the preferred PlatformColor component
       // order and swizzle in the shader instead of in software.
       return !PlatformColor::SameComponentOrder(format);
     case RGBA_4444:
     case ETC1:
     case ALPHA_8:
     case LUMINANCE_8:
     case RGB_565:
     case RED_8:
     case LUMINANCE_F16:
       return false;
   }
   NOTREACHED();
   return false;
 }
 
 }  // namespace cc