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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "cc/resources/transform_display_item.h" | |
| 6 | |
| 7 #include "base/strings/stringprintf.h" | |
| 8 #include "base/trace_event/trace_event_argument.h" | |
| 9 #include "third_party/skia/include/core/SkCanvas.h" | |
| 10 | |
| 11 namespace cc { | |
| 12 | |
| 13 TransformDisplayItem::TransformDisplayItem() | |
| 14 : transform_(gfx::Transform::kSkipInitialization) { | |
| 15 } | |
| 16 | |
| 17 TransformDisplayItem::~TransformDisplayItem() { | |
| 18 } | |
| 19 | |
| 20 void TransformDisplayItem::SetNew(const gfx::Transform& transform) { | |
| 21 transform_ = transform; | |
| 22 | |
| 23 size_t memory_usage = sizeof(gfx::Transform); | |
| 24 DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 1 /* op_count */, | |
| 25 memory_usage); | |
| 26 } | |
| 27 | |
| 28 void TransformDisplayItem::Raster(SkCanvas* canvas, | |
| 29 SkDrawPictureCallback* callback) const { | |
| 30 canvas->save(); | |
| 31 if (!transform_.IsIdentity()) | |
| 32 canvas->concat(transform_.matrix()); | |
| 33 } | |
| 34 | |
| 35 void TransformDisplayItem::AsValueInto( | |
| 36 base::trace_event::TracedValue* array) const { | |
| 37 array->AppendString(base::StringPrintf("TransformDisplayItem transform: [%s]", | |
| 38 transform_.ToString().c_str())); | |
| 39 } | |
| 40 | |
| 41 EndTransformDisplayItem::EndTransformDisplayItem() { | |
| 42 DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 0 /* op_count */, | |
| 43 0 /* memory_usage */); | |
| 44 } | |
| 45 | |
| 46 EndTransformDisplayItem::~EndTransformDisplayItem() { | |
| 47 } | |
| 48 | |
| 49 void EndTransformDisplayItem::Raster(SkCanvas* canvas, | |
| 50 SkDrawPictureCallback* callback) const { | |
| 51 canvas->restore(); | |
| 52 } | |
| 53 | |
| 54 void EndTransformDisplayItem::AsValueInto( | |
| 55 base::trace_event::TracedValue* array) const { | |
| 56 array->AppendString("EndTransformDisplayItem"); | |
| 57 } | |
| 58 | |
| 59 } // namespace cc | |
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