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1 // Copyright 2015 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/compositing_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 #include "third_party/skia/include/core/SkPaint.h" | |
11 #include "third_party/skia/include/core/SkXfermode.h" | |
12 #include "ui/gfx/skia_util.h" | |
13 | |
14 namespace cc { | |
15 | |
16 CompositingDisplayItem::CompositingDisplayItem() { | |
17 } | |
18 | |
19 CompositingDisplayItem::~CompositingDisplayItem() { | |
20 } | |
21 | |
22 void CompositingDisplayItem::SetNew(uint8_t alpha, | |
23 SkXfermode::Mode xfermode, | |
24 SkRect* bounds, | |
25 skia::RefPtr<SkColorFilter> cf) { | |
26 alpha_ = alpha; | |
27 xfermode_ = xfermode; | |
28 has_bounds_ = !!bounds; | |
29 if (bounds) | |
30 bounds_ = SkRect(*bounds); | |
31 color_filter_ = cf; | |
32 | |
33 // TODO(pdr): Include color_filter's memory here. | |
34 size_t memory_usage = | |
35 sizeof(float) + sizeof(bool) + sizeof(SkRect) + sizeof(SkXfermode::Mode); | |
36 DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 1 /* op_count */, | |
37 memory_usage); | |
38 } | |
39 | |
40 void CompositingDisplayItem::Raster(SkCanvas* canvas, | |
41 SkDrawPictureCallback* callback) const { | |
42 SkPaint paint; | |
43 paint.setXfermodeMode(xfermode_); | |
44 paint.setAlpha(alpha_); | |
45 paint.setColorFilter(color_filter_.get()); | |
46 canvas->saveLayer(has_bounds_ ? &bounds_ : nullptr, &paint); | |
47 } | |
48 | |
49 void CompositingDisplayItem::AsValueInto( | |
50 base::trace_event::TracedValue* array) const { | |
51 array->AppendString(base::StringPrintf( | |
52 "CompositingDisplayItem alpha: %d, xfermode: %d", alpha_, xfermode_)); | |
53 if (has_bounds_) | |
54 array->AppendString(base::StringPrintf( | |
55 ", bounds: [%f, %f, %f, %f]", static_cast<float>(bounds_.x()), | |
56 static_cast<float>(bounds_.y()), static_cast<float>(bounds_.width()), | |
57 static_cast<float>(bounds_.height()))); | |
58 } | |
59 | |
60 EndCompositingDisplayItem::EndCompositingDisplayItem() { | |
61 DisplayItem::SetNew(true /* suitable_for_gpu_raster */, 0 /* op_count */, | |
62 0 /* memory_usage */); | |
63 } | |
64 | |
65 EndCompositingDisplayItem::~EndCompositingDisplayItem() { | |
66 } | |
67 | |
68 void EndCompositingDisplayItem::Raster(SkCanvas* canvas, | |
69 SkDrawPictureCallback* callback) const { | |
70 canvas->restore(); | |
71 } | |
72 | |
73 void EndCompositingDisplayItem::AsValueInto( | |
74 base::trace_event::TracedValue* array) const { | |
75 array->AppendString("EndCompositingDisplayItem"); | |
76 } | |
77 | |
78 } // namespace cc | |
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