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bsalomon@google.comc6980972011-11-02 19:57:21 +00001/*
2 * Copyright 2011 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
robertphillips@google.com73672252013-08-29 12:40:26 +00008#include "SkBitmapDevice.h"
bsalomon@google.comc6980972011-11-02 19:57:21 +00009#include "SkCanvas.h"
bsalomon@google.comcf8fb1f2012-08-02 14:03:32 +000010#include "SkColorPriv.h"
reed@google.com4b163ed2012-08-07 21:35:13 +000011#include "SkMathPriv.h"
bsalomon@google.comc6980972011-11-02 19:57:21 +000012#include "SkRegion.h"
tfarina@chromium.org4ee16bf2014-01-10 22:08:27 +000013#include "Test.h"
tfarina@chromium.org4ee16bf2014-01-10 22:08:27 +000014
bsalomon@google.comcf8fb1f2012-08-02 14:03:32 +000015#if SK_SUPPORT_GPU
bsalomon@google.com67b915d2013-02-04 16:13:32 +000016#include "GrContextFactory.h"
tfarina@chromium.org8f6884a2014-01-24 20:56:26 +000017#include "SkGpuDevice.h"
bsalomon@google.comcf8fb1f2012-08-02 14:03:32 +000018#endif
bsalomon@google.comc6980972011-11-02 19:57:21 +000019
bsalomon@google.comc6980972011-11-02 19:57:21 +000020static const int DEV_W = 100, DEV_H = 100;
21static const SkIRect DEV_RECT = SkIRect::MakeWH(DEV_W, DEV_H);
rmistry@google.comd6176b02012-08-23 18:14:13 +000022static const SkRect DEV_RECT_S = SkRect::MakeWH(DEV_W * SK_Scalar1,
bsalomon@google.comc6980972011-11-02 19:57:21 +000023 DEV_H * SK_Scalar1);
24
commit-bot@chromium.orgddf94cf2013-10-12 17:25:17 +000025static SkPMColor getCanvasColor(int x, int y) {
bsalomon@google.comc6980972011-11-02 19:57:21 +000026 SkASSERT(x >= 0 && x < DEV_W);
27 SkASSERT(y >= 0 && y < DEV_H);
bsalomon@google.com6850eab2011-11-03 20:29:47 +000028
29 U8CPU r = x;
30 U8CPU g = y;
31 U8CPU b = 0xc;
32
33 U8CPU a = 0xff;
bsalomon@google.comc4364992011-11-07 15:54:49 +000034 switch ((x+y) % 5) {
bsalomon@google.com6850eab2011-11-03 20:29:47 +000035 case 0:
36 a = 0xff;
37 break;
38 case 1:
39 a = 0x80;
40 break;
41 case 2:
42 a = 0xCC;
43 break;
44 case 4:
45 a = 0x01;
46 break;
47 case 3:
48 a = 0x00;
49 break;
50 }
51 return SkPremultiplyARGBInline(a, r, g, b);
bsalomon@google.comc6980972011-11-02 19:57:21 +000052}
rmistry@google.comd6176b02012-08-23 18:14:13 +000053
commit-bot@chromium.orgddf94cf2013-10-12 17:25:17 +000054static SkPMColor getBitmapColor(int x, int y, int w) {
bsalomon@google.comc6980972011-11-02 19:57:21 +000055 int n = y * w + x;
bsalomon@google.com6850eab2011-11-03 20:29:47 +000056
bsalomon@google.comc6980972011-11-02 19:57:21 +000057 U8CPU b = n & 0xff;
58 U8CPU g = (n >> 8) & 0xff;
59 U8CPU r = (n >> 16) & 0xff;
60 return SkPackARGB32(0xff, r, g , b);
61}
62
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +000063static SkPMColor convertToPMColor(SkColorType ct, SkAlphaType at, const uint32_t* addr,
64 bool* doUnpremul) {
65 *doUnpremul = (kUnpremul_SkAlphaType == at);
66
67 const uint8_t* c = reinterpret_cast<const uint8_t*>(addr);
bsalomon@google.com6850eab2011-11-03 20:29:47 +000068 U8CPU a,r,g,b;
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +000069 switch (ct) {
70 case kBGRA_8888_SkColorType:
bsalomon@google.com6850eab2011-11-03 20:29:47 +000071 b = static_cast<U8CPU>(c[0]);
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +000072 g = static_cast<U8CPU>(c[1]);
73 r = static_cast<U8CPU>(c[2]);
bsalomon@google.com6850eab2011-11-03 20:29:47 +000074 a = static_cast<U8CPU>(c[3]);
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +000075 break;
76 case kRGBA_8888_SkColorType:
bsalomon@google.com6850eab2011-11-03 20:29:47 +000077 r = static_cast<U8CPU>(c[0]);
78 g = static_cast<U8CPU>(c[1]);
79 b = static_cast<U8CPU>(c[2]);
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +000080 a = static_cast<U8CPU>(c[3]);
bsalomon@google.com6850eab2011-11-03 20:29:47 +000081 break;
bsalomon@google.comccaa0022012-09-25 19:55:07 +000082 default:
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +000083 SkDEBUGFAIL("Unexpected colortype");
bsalomon@google.comccaa0022012-09-25 19:55:07 +000084 return 0;
bsalomon@google.com6850eab2011-11-03 20:29:47 +000085 }
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +000086
87 if (*doUnpremul) {
bsalomon@google.com6850eab2011-11-03 20:29:47 +000088 r = SkMulDiv255Ceiling(r, a);
89 g = SkMulDiv255Ceiling(g, a);
90 b = SkMulDiv255Ceiling(b, a);
91 }
92 return SkPackARGB32(a, r, g, b);
93}
94
commit-bot@chromium.orgddf94cf2013-10-12 17:25:17 +000095static void fillCanvas(SkCanvas* canvas) {
bsalomon@google.comc6980972011-11-02 19:57:21 +000096 static SkBitmap bmp;
97 if (bmp.isNull()) {
commit-bot@chromium.orgfa9e5fa2014-02-13 22:00:04 +000098 SkDEBUGCODE(bool alloc =) bmp.allocN32Pixels(DEV_W, DEV_H);
bsalomon@google.comc6980972011-11-02 19:57:21 +000099 SkASSERT(alloc);
100 SkAutoLockPixels alp(bmp);
101 intptr_t pixels = reinterpret_cast<intptr_t>(bmp.getPixels());
102 for (int y = 0; y < DEV_H; ++y) {
103 for (int x = 0; x < DEV_W; ++x) {
104 SkPMColor* pixel = reinterpret_cast<SkPMColor*>(pixels + y * bmp.rowBytes() + x * bmp.bytesPerPixel());
105 *pixel = getCanvasColor(x, y);
106 }
107 }
108 }
109 canvas->save();
110 canvas->setMatrix(SkMatrix::I());
111 canvas->clipRect(DEV_RECT_S, SkRegion::kReplace_Op);
112 SkPaint paint;
113 paint.setXfermodeMode(SkXfermode::kSrc_Mode);
114 canvas->drawBitmap(bmp, 0, 0, &paint);
115 canvas->restore();
116}
rmistry@google.comd6176b02012-08-23 18:14:13 +0000117
commit-bot@chromium.orgddf94cf2013-10-12 17:25:17 +0000118static void fillBitmap(SkBitmap* bitmap) {
bsalomon@google.comc6980972011-11-02 19:57:21 +0000119 SkASSERT(bitmap->lockPixelsAreWritable());
120 SkAutoLockPixels alp(*bitmap);
121 int w = bitmap->width();
122 int h = bitmap->height();
123 intptr_t pixels = reinterpret_cast<intptr_t>(bitmap->getPixels());
124 for (int y = 0; y < h; ++y) {
125 for (int x = 0; x < w; ++x) {
126 SkPMColor* pixel = reinterpret_cast<SkPMColor*>(pixels + y * bitmap->rowBytes() + x * bitmap->bytesPerPixel());
sugoi@google.com54f0d1b2013-02-27 19:17:41 +0000127 *pixel = getBitmapColor(x, y, w);
bsalomon@google.comc6980972011-11-02 19:57:21 +0000128 }
129 }
130}
131
commit-bot@chromium.orgddf94cf2013-10-12 17:25:17 +0000132static bool checkPixel(SkPMColor a, SkPMColor b, bool didPremulConversion) {
bsalomon@google.comc4364992011-11-07 15:54:49 +0000133 if (!didPremulConversion) {
134 return a == b;
135 }
136 int32_t aA = static_cast<int32_t>(SkGetPackedA32(a));
137 int32_t aR = static_cast<int32_t>(SkGetPackedR32(a));
138 int32_t aG = static_cast<int32_t>(SkGetPackedG32(a));
139 int32_t aB = SkGetPackedB32(a);
140
141 int32_t bA = static_cast<int32_t>(SkGetPackedA32(b));
142 int32_t bR = static_cast<int32_t>(SkGetPackedR32(b));
143 int32_t bG = static_cast<int32_t>(SkGetPackedG32(b));
144 int32_t bB = static_cast<int32_t>(SkGetPackedB32(b));
145
146 return aA == bA &&
147 SkAbs32(aR - bR) <= 1 &&
148 SkAbs32(aG - bG) <= 1 &&
149 SkAbs32(aB - bB) <= 1;
150}
151
bsalomon@google.comc6980972011-11-02 19:57:21 +0000152// checks the bitmap contains correct pixels after the readPixels
153// if the bitmap was prefilled with pixels it checks that these weren't
154// overwritten in the area outside the readPixels.
commit-bot@chromium.orgddf94cf2013-10-12 17:25:17 +0000155static bool checkRead(skiatest::Reporter* reporter,
156 const SkBitmap& bitmap,
157 int x, int y,
158 bool checkCanvasPixels,
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000159 bool checkBitmapPixels) {
160 SkASSERT(4 == bitmap.bytesPerPixel());
bsalomon@google.comc6980972011-11-02 19:57:21 +0000161 SkASSERT(!bitmap.isNull());
bsalomon@google.com6850eab2011-11-03 20:29:47 +0000162 SkASSERT(checkCanvasPixels || checkBitmapPixels);
rmistry@google.comd6176b02012-08-23 18:14:13 +0000163
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000164 const SkColorType ct = bitmap.colorType();
165 const SkAlphaType at = bitmap.alphaType();
166
bsalomon@google.comc6980972011-11-02 19:57:21 +0000167 int bw = bitmap.width();
168 int bh = bitmap.height();
169
170 SkIRect srcRect = SkIRect::MakeXYWH(x, y, bw, bh);
171 SkIRect clippedSrcRect = DEV_RECT;
172 if (!clippedSrcRect.intersect(srcRect)) {
173 clippedSrcRect.setEmpty();
174 }
bsalomon@google.comc6980972011-11-02 19:57:21 +0000175 SkAutoLockPixels alp(bitmap);
bsalomon@google.comc6980972011-11-02 19:57:21 +0000176 for (int by = 0; by < bh; ++by) {
177 for (int bx = 0; bx < bw; ++bx) {
178 int devx = bx + srcRect.fLeft;
179 int devy = by + srcRect.fTop;
rmistry@google.comd6176b02012-08-23 18:14:13 +0000180
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000181 const uint32_t* pixel = bitmap.getAddr32(bx, by);
bsalomon@google.comc6980972011-11-02 19:57:21 +0000182
183 if (clippedSrcRect.contains(devx, devy)) {
bsalomon@google.com6850eab2011-11-03 20:29:47 +0000184 if (checkCanvasPixels) {
185 SkPMColor canvasPixel = getCanvasColor(devx, devy);
bsalomon@google.comc4364992011-11-07 15:54:49 +0000186 bool didPremul;
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000187 SkPMColor pmPixel = convertToPMColor(ct, at, pixel, &didPremul);
bsalomon@google.comc4364992011-11-07 15:54:49 +0000188 bool check;
189 REPORTER_ASSERT(reporter, check = checkPixel(pmPixel, canvasPixel, didPremul));
190 if (!check) {
bsalomon@google.com72f3dca2012-08-17 13:32:06 +0000191 return false;
bsalomon@google.com6850eab2011-11-03 20:29:47 +0000192 }
bsalomon@google.comc6980972011-11-02 19:57:21 +0000193 }
bsalomon@google.com6850eab2011-11-03 20:29:47 +0000194 } else if (checkBitmapPixels) {
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000195 REPORTER_ASSERT(reporter, getBitmapColor(bx, by, bw) == *pixel);
196 if (getBitmapColor(bx, by, bw) != *pixel) {
bsalomon@google.com72f3dca2012-08-17 13:32:06 +0000197 return false;
bsalomon@google.comc6980972011-11-02 19:57:21 +0000198 }
199 }
200 }
201 }
bsalomon@google.com72f3dca2012-08-17 13:32:06 +0000202 return true;
bsalomon@google.comc6980972011-11-02 19:57:21 +0000203}
204
205enum BitmapInit {
206 kFirstBitmapInit = 0,
rmistry@google.comd6176b02012-08-23 18:14:13 +0000207
bsalomon@google.comc6980972011-11-02 19:57:21 +0000208 kNoPixels_BitmapInit = kFirstBitmapInit,
209 kTight_BitmapInit,
210 kRowBytes_BitmapInit,
rmistry@google.comd6176b02012-08-23 18:14:13 +0000211
bsalomon@google.comc6980972011-11-02 19:57:21 +0000212 kBitmapInitCnt
213};
214
commit-bot@chromium.orgddf94cf2013-10-12 17:25:17 +0000215static BitmapInit nextBMI(BitmapInit bmi) {
bsalomon@google.comc6980972011-11-02 19:57:21 +0000216 int x = bmi;
217 return static_cast<BitmapInit>(++x);
218}
219
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000220static void init_bitmap(SkBitmap* bitmap, const SkIRect& rect, BitmapInit init, SkColorType ct,
221 SkAlphaType at) {
222 SkImageInfo info = SkImageInfo::Make(rect.width(), rect.height(), ct, at);
commit-bot@chromium.orgfa9e5fa2014-02-13 22:00:04 +0000223 size_t rowBytes = 0;
bsalomon@google.comc6980972011-11-02 19:57:21 +0000224 bool alloc = true;
225 switch (init) {
226 case kNoPixels_BitmapInit:
227 alloc = false;
228 case kTight_BitmapInit:
229 break;
230 case kRowBytes_BitmapInit:
commit-bot@chromium.orgfa9e5fa2014-02-13 22:00:04 +0000231 rowBytes = (info.width() + 16) * sizeof(SkPMColor);
bsalomon@google.comc6980972011-11-02 19:57:21 +0000232 break;
233 default:
234 SkASSERT(0);
235 break;
236 }
skia.committer@gmail.com02d6f542014-02-14 03:02:05 +0000237
bsalomon@google.comc6980972011-11-02 19:57:21 +0000238 if (alloc) {
commit-bot@chromium.orgfa9e5fa2014-02-13 22:00:04 +0000239 bitmap->allocPixels(info);
240 } else {
241 bitmap->setConfig(info, rowBytes);
bsalomon@google.comc6980972011-11-02 19:57:21 +0000242 }
243}
244
tfarina@chromium.org4ee16bf2014-01-10 22:08:27 +0000245DEF_GPUTEST(ReadPixels, reporter, factory) {
bsalomon@google.comc6980972011-11-02 19:57:21 +0000246 const SkIRect testRects[] = {
247 // entire thing
248 DEV_RECT,
249 // larger on all sides
250 SkIRect::MakeLTRB(-10, -10, DEV_W + 10, DEV_H + 10),
251 // fully contained
252 SkIRect::MakeLTRB(DEV_W / 4, DEV_H / 4, 3 * DEV_W / 4, 3 * DEV_H / 4),
253 // outside top left
254 SkIRect::MakeLTRB(-10, -10, -1, -1),
255 // touching top left corner
256 SkIRect::MakeLTRB(-10, -10, 0, 0),
257 // overlapping top left corner
258 SkIRect::MakeLTRB(-10, -10, DEV_W / 4, DEV_H / 4),
259 // overlapping top left and top right corners
260 SkIRect::MakeLTRB(-10, -10, DEV_W + 10, DEV_H / 4),
261 // touching entire top edge
262 SkIRect::MakeLTRB(-10, -10, DEV_W + 10, 0),
263 // overlapping top right corner
264 SkIRect::MakeLTRB(3 * DEV_W / 4, -10, DEV_W + 10, DEV_H / 4),
265 // contained in x, overlapping top edge
266 SkIRect::MakeLTRB(DEV_W / 4, -10, 3 * DEV_W / 4, DEV_H / 4),
267 // outside top right corner
268 SkIRect::MakeLTRB(DEV_W + 1, -10, DEV_W + 10, -1),
269 // touching top right corner
270 SkIRect::MakeLTRB(DEV_W, -10, DEV_W + 10, 0),
271 // overlapping top left and bottom left corners
272 SkIRect::MakeLTRB(-10, -10, DEV_W / 4, DEV_H + 10),
273 // touching entire left edge
274 SkIRect::MakeLTRB(-10, -10, 0, DEV_H + 10),
275 // overlapping bottom left corner
276 SkIRect::MakeLTRB(-10, 3 * DEV_H / 4, DEV_W / 4, DEV_H + 10),
277 // contained in y, overlapping left edge
278 SkIRect::MakeLTRB(-10, DEV_H / 4, DEV_W / 4, 3 * DEV_H / 4),
279 // outside bottom left corner
280 SkIRect::MakeLTRB(-10, DEV_H + 1, -1, DEV_H + 10),
281 // touching bottom left corner
282 SkIRect::MakeLTRB(-10, DEV_H, 0, DEV_H + 10),
283 // overlapping bottom left and bottom right corners
284 SkIRect::MakeLTRB(-10, 3 * DEV_H / 4, DEV_W + 10, DEV_H + 10),
285 // touching entire left edge
286 SkIRect::MakeLTRB(0, DEV_H, DEV_W, DEV_H + 10),
287 // overlapping bottom right corner
288 SkIRect::MakeLTRB(3 * DEV_W / 4, 3 * DEV_H / 4, DEV_W + 10, DEV_H + 10),
289 // overlapping top right and bottom right corners
290 SkIRect::MakeLTRB(3 * DEV_W / 4, -10, DEV_W + 10, DEV_H + 10),
291 };
292
senorblanco@chromium.org3cb406b2013-02-05 19:50:46 +0000293 for (int dtype = 0; dtype < 3; ++dtype) {
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000294 int glCtxTypeCnt = 1;
295#if SK_SUPPORT_GPU
296 if (0 != dtype) {
297 glCtxTypeCnt = GrContextFactory::kGLContextTypeCnt;
bsalomon@google.comc6980972011-11-02 19:57:21 +0000298 }
djsollen@google.com8688e5b2012-01-09 13:02:20 +0000299#endif
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000300 for (int glCtxType = 0; glCtxType < glCtxTypeCnt; ++glCtxType) {
robertphillips@google.com1f2f3382013-08-29 11:54:56 +0000301 SkAutoTUnref<SkBaseDevice> device;
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000302 if (0 == dtype) {
commit-bot@chromium.org15a14052014-02-16 00:59:25 +0000303 SkImageInfo info = SkImageInfo::MakeN32Premul(DEV_W, DEV_H);
304 device.reset(SkBitmapDevice::Create(info));
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000305 } else {
306#if SK_SUPPORT_GPU
307 GrContextFactory::GLContextType type =
308 static_cast<GrContextFactory::GLContextType>(glCtxType);
309 if (!GrContextFactory::IsRenderingGLContext(type)) {
310 continue;
bsalomon@google.comc6980972011-11-02 19:57:21 +0000311 }
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000312 GrContext* context = factory->get(type);
313 if (NULL == context) {
314 continue;
315 }
senorblanco@chromium.org3cb406b2013-02-05 19:50:46 +0000316 GrTextureDesc desc;
317 desc.fFlags = kRenderTarget_GrTextureFlagBit | kNoStencil_GrTextureFlagBit;
318 desc.fWidth = DEV_W;
319 desc.fHeight = DEV_H;
bsalomon@google.comfec0bc32013-02-07 14:43:04 +0000320 desc.fConfig = kSkia8888_GrPixelConfig;
senorblanco@chromium.org3cb406b2013-02-05 19:50:46 +0000321 desc.fOrigin = 1 == dtype ? kBottomLeft_GrSurfaceOrigin
322 : kTopLeft_GrSurfaceOrigin;
323 GrAutoScratchTexture ast(context, desc, GrContext::kExact_ScratchTexMatch);
324 SkAutoTUnref<GrTexture> tex(ast.detach());
325 device.reset(new SkGpuDevice(context, tex));
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000326#else
327 continue;
328#endif
329 }
330 SkCanvas canvas(device);
331 fillCanvas(&canvas);
332
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000333 static const struct {
334 SkColorType fColorType;
335 SkAlphaType fAlphaType;
336 } gReadConfigs[] = {
337 { kRGBA_8888_SkColorType, kPremul_SkAlphaType },
338 { kRGBA_8888_SkColorType, kUnpremul_SkAlphaType },
339 { kBGRA_8888_SkColorType, kPremul_SkAlphaType },
340 { kBGRA_8888_SkColorType, kUnpremul_SkAlphaType },
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000341 };
342 for (size_t rect = 0; rect < SK_ARRAY_COUNT(testRects); ++rect) {
343 const SkIRect& srcRect = testRects[rect];
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000344 for (BitmapInit bmi = kFirstBitmapInit; bmi < kBitmapInitCnt; bmi = nextBMI(bmi)) {
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000345 for (size_t c = 0; c < SK_ARRAY_COUNT(gReadConfigs); ++c) {
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000346 SkBitmap bmp;
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000347 init_bitmap(&bmp, srcRect, bmi,
348 gReadConfigs[c].fColorType, gReadConfigs[c].fAlphaType);
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000349
350 // if the bitmap has pixels allocated before the readPixels,
351 // note that and fill them with pattern
352 bool startsWithPixels = !bmp.isNull();
353 if (startsWithPixels) {
354 fillBitmap(&bmp);
355 }
356 uint32_t idBefore = canvas.getDevice()->accessBitmap(false).getGenerationID();
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000357 bool success = canvas.readPixels(&bmp, srcRect.fLeft, srcRect.fTop);
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000358 uint32_t idAfter = canvas.getDevice()->accessBitmap(false).getGenerationID();
359
360 // we expect to succeed when the read isn't fully clipped
361 // out.
362 bool expectSuccess = SkIRect::Intersects(srcRect, DEV_RECT);
363 // determine whether we expected the read to succeed.
364 REPORTER_ASSERT(reporter, success == expectSuccess);
365 // read pixels should never change the gen id
366 REPORTER_ASSERT(reporter, idBefore == idAfter);
367
368 if (success || startsWithPixels) {
369 checkRead(reporter, bmp, srcRect.fLeft, srcRect.fTop,
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000370 success, startsWithPixels);
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000371 } else {
372 // if we had no pixels beforehand and the readPixels
373 // failed then our bitmap should still not have pixels
374 REPORTER_ASSERT(reporter, bmp.isNull());
375 }
376 }
377 // check the old webkit version of readPixels that clips the
378 // bitmap size
379 SkBitmap wkbmp;
380 bool success = canvas.readPixels(srcRect, &wkbmp);
381 SkIRect clippedRect = DEV_RECT;
382 if (clippedRect.intersect(srcRect)) {
383 REPORTER_ASSERT(reporter, success);
commit-bot@chromium.org28fcae22014-04-11 17:15:40 +0000384 REPORTER_ASSERT(reporter, kN32_SkColorType == wkbmp.colorType());
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000385 REPORTER_ASSERT(reporter, kPremul_SkAlphaType == wkbmp.alphaType());
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000386 checkRead(reporter, wkbmp, clippedRect.fLeft,
commit-bot@chromium.orga713f9c2014-03-17 21:31:26 +0000387 clippedRect.fTop, true, false);
bsalomon@google.com67b915d2013-02-04 16:13:32 +0000388 } else {
389 REPORTER_ASSERT(reporter, !success);
390 }
bsalomon@google.comc6980972011-11-02 19:57:21 +0000391 }
392 }
393 }
394 }
395}