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1 /* | |
2 * Copyright 2012 Google Inc. | |
3 * | |
4 * Use of this source code is governed by a BSD-style license that can be | |
5 * found in the LICENSE file. | |
6 */ | |
7 | |
8 #include "picture_utils.h" | |
9 #include "CopyTilesRenderer.h" | |
10 #include "SkCanvas.h" | |
11 #include "SkDevice.h" | |
12 #include "SkImageEncoder.h" | |
13 #include "SkMultiPictureDraw.h" | |
14 #include "SkPicture.h" | |
15 #include "SkPixelRef.h" | |
16 #include "SkRect.h" | |
17 #include "SkString.h" | |
18 | |
19 namespace sk_tools { | |
20 #if SK_SUPPORT_GPU | |
21 CopyTilesRenderer::CopyTilesRenderer(const GrContextOptions& opts, int x, in
t y) | |
22 : INHERITED(opts) | |
23 , fXTilesPerLargeTile(x) | |
24 , fYTilesPerLargeTile(y) { } | |
25 #else | |
26 CopyTilesRenderer::CopyTilesRenderer(int x, int y) | |
27 : fXTilesPerLargeTile(x) | |
28 , fYTilesPerLargeTile(y) { } | |
29 #endif | |
30 void CopyTilesRenderer::init(const SkPicture* pict, const SkString* writePat
h, | |
31 const SkString* mismatchPath, const SkString* i
nputFilename, | |
32 bool useChecksumBasedFilenames, bool useMultiPi
ctureDraw) { | |
33 // Do not call INHERITED::init(), which would create a (potentially larg
e) canvas which is | |
34 // not used by bench_pictures. | |
35 SkASSERT(pict != nullptr); | |
36 // Only work with absolute widths (as opposed to percentages). | |
37 SkASSERT(this->getTileWidth() != 0 && this->getTileHeight() != 0); | |
38 fPicture.reset(SkRef(pict)); | |
39 this->CopyString(&fWritePath, writePath); | |
40 this->CopyString(&fMismatchPath, mismatchPath); | |
41 this->CopyString(&fInputFilename, inputFilename); | |
42 fUseChecksumBasedFilenames = useChecksumBasedFilenames; | |
43 fUseMultiPictureDraw = useMultiPictureDraw; | |
44 this->buildBBoxHierarchy(); | |
45 // In order to avoid allocating a large canvas (particularly important f
or GPU), create one | |
46 // canvas that is a multiple of the tile size, and draw portions of the
picture. | |
47 fLargeTileWidth = fXTilesPerLargeTile * this->getTileWidth(); | |
48 fLargeTileHeight = fYTilesPerLargeTile * this->getTileHeight(); | |
49 fCanvas.reset(this->INHERITED::setupCanvas(fLargeTileWidth, fLargeTileHe
ight)); | |
50 } | |
51 | |
52 bool CopyTilesRenderer::render(SkBitmap** out) { | |
53 int i = 0; | |
54 bool success = true; | |
55 SkBitmap dst; | |
56 for (int x = 0; x < this->getViewWidth(); x += fLargeTileWidth) { | |
57 for (int y = 0; y < this->getViewHeight(); y += fLargeTileHeight) { | |
58 SkAutoCanvasRestore autoRestore(fCanvas, true); | |
59 // Translate so that we draw the correct portion of the picture. | |
60 // Perform a postTranslate so that the scaleFactor does not inte
rfere with the | |
61 // positioning. | |
62 SkMatrix mat(fCanvas->getTotalMatrix()); | |
63 mat.postTranslate(SkIntToScalar(-x), SkIntToScalar(-y)); | |
64 fCanvas->setMatrix(mat); | |
65 // Draw the picture | |
66 if (fUseMultiPictureDraw) { | |
67 SkMultiPictureDraw mpd; | |
68 | |
69 mpd.add(fCanvas, fPicture); | |
70 | |
71 mpd.draw(); | |
72 } else { | |
73 fCanvas->drawPicture(fPicture); | |
74 } | |
75 // Now extract the picture into tiles | |
76 SkBitmap baseBitmap; | |
77 fCanvas->readPixels(SkIRect::MakeSize(fCanvas->getBaseLayerSize(
)), &baseBitmap); | |
78 SkIRect subset; | |
79 for (int tileY = 0; tileY < fLargeTileHeight; tileY += this->get
TileHeight()) { | |
80 for (int tileX = 0; tileX < fLargeTileWidth; tileX += this->
getTileWidth()) { | |
81 subset.set(tileX, tileY, tileX + this->getTileWidth(), | |
82 tileY + this->getTileHeight()); | |
83 SkDEBUGCODE(bool extracted =) | |
84 baseBitmap.extractSubset(&dst, subset); | |
85 SkASSERT(extracted); | |
86 if (!fWritePath.isEmpty()) { | |
87 // Similar to write() in PictureRenderer.cpp, but ju
st encodes | |
88 // a bitmap directly. | |
89 // TODO: Share more common code with write() to do t
his, to properly | |
90 // write out the JSON summary, etc. | |
91 SkString pathWithNumber = SkOSPath::Join(fWritePath.
c_str(), | |
92 fInputFilen
ame.c_str()); | |
93 pathWithNumber.remove(pathWithNumber.size() - 4, 4); | |
94 pathWithNumber.appendf("%i.png", i++); | |
95 SkBitmap copy; | |
96 #if SK_SUPPORT_GPU | |
97 if (isUsingGpuDevice()) { | |
98 dst.pixelRef()->readPixels(©, &subset); | |
99 } else { | |
100 #endif | |
101 dst.copyTo(©); | |
102 #if SK_SUPPORT_GPU | |
103 } | |
104 #endif | |
105 success &= SkImageEncoder::EncodeFile(pathWithNumber
.c_str(), copy, | |
106 SkImageEncoder
::kPNG_Type, 100); | |
107 } | |
108 } | |
109 } | |
110 } | |
111 } | |
112 return success; | |
113 } | |
114 | |
115 SkString CopyTilesRenderer::getConfigNameInternal() { | |
116 return SkString("copy_tiles"); | |
117 } | |
118 } | |
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