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|    1 // Copyright 2013 The Chromium Authors. All rights reserved. |    1 // Copyright 2013 The Chromium Authors. All rights reserved. | 
|    2 // Use of this source code is governed by a BSD-style license that can be |    2 // Use of this source code is governed by a BSD-style license that can be | 
|    3 // found in the LICENSE file. |    3 // found in the LICENSE file. | 
|    4  |    4  | 
|    5 #include "cc/raster/raster_buffer_provider.h" |    5 #include "cc/raster/raster_buffer_provider.h" | 
|    6  |    6  | 
|    7 #include <stddef.h> |    7 #include <stddef.h> | 
|    8  |    8  | 
|    9 #include "base/trace_event/trace_event.h" |    9 #include "base/trace_event/trace_event.h" | 
|   10 #include "cc/playback/raster_source.h" |   10 #include "cc/playback/raster_source.h" | 
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|   46 // static |   46 // static | 
|   47 void RasterBufferProvider::PlaybackToMemory( |   47 void RasterBufferProvider::PlaybackToMemory( | 
|   48     void* memory, |   48     void* memory, | 
|   49     ResourceFormat format, |   49     ResourceFormat format, | 
|   50     const gfx::Size& size, |   50     const gfx::Size& size, | 
|   51     size_t stride, |   51     size_t stride, | 
|   52     const RasterSource* raster_source, |   52     const RasterSource* raster_source, | 
|   53     const gfx::Rect& canvas_bitmap_rect, |   53     const gfx::Rect& canvas_bitmap_rect, | 
|   54     const gfx::Rect& canvas_playback_rect, |   54     const gfx::Rect& canvas_playback_rect, | 
|   55     float scale, |   55     float scale, | 
|   56     sk_sp<SkColorSpace> dst_color_space, |   56     const gfx::ColorSpace& target_color_space, | 
|   57     const RasterSource::PlaybackSettings& playback_settings) { |   57     const RasterSource::PlaybackSettings& playback_settings) { | 
|   58   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), |   58   TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("cc.debug"), | 
|   59                "RasterBufferProvider::PlaybackToMemory"); |   59                "RasterBufferProvider::PlaybackToMemory"); | 
|   60  |   60  | 
|   61   DCHECK(IsSupportedPlaybackToMemoryFormat(format)) << format; |   61   DCHECK(IsSupportedPlaybackToMemoryFormat(format)) << format; | 
|   62  |   62  | 
|   63   // Uses kPremul_SkAlphaType since the result is not known to be opaque. |   63   // Uses kPremul_SkAlphaType since the result is not known to be opaque. | 
|   64   SkImageInfo info = SkImageInfo::MakeN32(size.width(), size.height(), |   64   SkImageInfo info = | 
|   65                                           kPremul_SkAlphaType, dst_color_space); |   65       SkImageInfo::MakeN32(size.width(), size.height(), kPremul_SkAlphaType); | 
|   66  |   66  | 
|   67   // Use unknown pixel geometry to disable LCD text. |   67   // Use unknown pixel geometry to disable LCD text. | 
|   68   SkSurfaceProps surface_props(0, kUnknown_SkPixelGeometry); |   68   SkSurfaceProps surface_props(0, kUnknown_SkPixelGeometry); | 
|   69   if (raster_source->CanUseLCDText()) { |   69   if (raster_source->CanUseLCDText()) { | 
|   70     // LegacyFontHost will get LCD text and skia figures out what type to use. |   70     // LegacyFontHost will get LCD text and skia figures out what type to use. | 
|   71     surface_props = SkSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType); |   71     surface_props = SkSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType); | 
|   72   } |   72   } | 
|   73  |   73  | 
|   74   if (!stride) |   74   if (!stride) | 
|   75     stride = info.minRowBytes(); |   75     stride = info.minRowBytes(); | 
|   76   DCHECK_GT(stride, 0u); |   76   DCHECK_GT(stride, 0u); | 
|   77  |   77  | 
|   78   switch (format) { |   78   switch (format) { | 
|   79     case RGBA_8888: |   79     case RGBA_8888: | 
|   80     case BGRA_8888: |   80     case BGRA_8888: | 
|   81     case RGBA_F16: { |   81     case RGBA_F16: { | 
|   82       sk_sp<SkSurface> surface = |   82       sk_sp<SkSurface> surface = | 
|   83           SkSurface::MakeRasterDirect(info, memory, stride, &surface_props); |   83           SkSurface::MakeRasterDirect(info, memory, stride, &surface_props); | 
|   84       raster_source->PlaybackToCanvas(surface->getCanvas(), canvas_bitmap_rect, |   84       raster_source->PlaybackToCanvas(surface->getCanvas(), target_color_space, | 
|   85                                       canvas_playback_rect, scale, |   85                                       canvas_bitmap_rect, canvas_playback_rect, | 
|   86                                       playback_settings); |   86                                       scale, playback_settings); | 
|   87       return; |   87       return; | 
|   88     } |   88     } | 
|   89     case RGBA_4444: |   89     case RGBA_4444: | 
|   90     case ETC1: { |   90     case ETC1: { | 
|   91       sk_sp<SkSurface> surface = SkSurface::MakeRaster(info, &surface_props); |   91       sk_sp<SkSurface> surface = SkSurface::MakeRaster(info, &surface_props); | 
|   92       // TODO(reveman): Improve partial raster support by reducing the size of |   92       // TODO(reveman): Improve partial raster support by reducing the size of | 
|   93       // playback rect passed to PlaybackToCanvas. crbug.com/519070 |   93       // playback rect passed to PlaybackToCanvas. crbug.com/519070 | 
|   94       raster_source->PlaybackToCanvas(surface->getCanvas(), canvas_bitmap_rect, |   94       raster_source->PlaybackToCanvas(surface->getCanvas(), target_color_space, | 
|   95                                       canvas_bitmap_rect, scale, |   95                                       canvas_bitmap_rect, canvas_bitmap_rect, | 
|   96                                       playback_settings); |   96                                       scale, playback_settings); | 
|   97  |   97  | 
|   98       if (format == ETC1) { |   98       if (format == ETC1) { | 
|   99         TRACE_EVENT0("cc", |   99         TRACE_EVENT0("cc", | 
|  100                      "RasterBufferProvider::PlaybackToMemory::CompressETC1"); |  100                      "RasterBufferProvider::PlaybackToMemory::CompressETC1"); | 
|  101         DCHECK_EQ(size.width() % 4, 0); |  101         DCHECK_EQ(size.width() % 4, 0); | 
|  102         DCHECK_EQ(size.height() % 4, 0); |  102         DCHECK_EQ(size.height() % 4, 0); | 
|  103         std::unique_ptr<TextureCompressor> texture_compressor = |  103         std::unique_ptr<TextureCompressor> texture_compressor = | 
|  104             TextureCompressor::Create(TextureCompressor::kFormatETC1); |  104             TextureCompressor::Create(TextureCompressor::kFormatETC1); | 
|  105         SkPixmap pixmap; |  105         SkPixmap pixmap; | 
|  106         surface->peekPixels(&pixmap); |  106         surface->peekPixels(&pixmap); | 
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|  146     case RED_8: |  146     case RED_8: | 
|  147     case LUMINANCE_F16: |  147     case LUMINANCE_F16: | 
|  148     case RGBA_F16: |  148     case RGBA_F16: | 
|  149       return false; |  149       return false; | 
|  150   } |  150   } | 
|  151   NOTREACHED(); |  151   NOTREACHED(); | 
|  152   return false; |  152   return false; | 
|  153 } |  153 } | 
|  154  |  154  | 
|  155 }  // namespace cc |  155 }  // namespace cc | 
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