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Side by Side Diff: tests/SurfaceTest.cpp

Issue 793723002: add readPixels to SkImage (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: add tests Created 6 years ago
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1 /* 1 /*
2 * Copyright 2013 Google Inc. 2 * Copyright 2013 Google Inc.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license that can be 4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file. 5 * found in the LICENSE file.
6 */ 6 */
7 7
8 #include "SkCanvas.h" 8 #include "SkCanvas.h"
9 #include "SkData.h" 9 #include "SkData.h"
10 #include "SkDecodingImageGenerator.h" 10 #include "SkDecodingImageGenerator.h"
(...skipping 100 matching lines...) Expand 10 before | Expand all | Expand 10 after
111 SkAutoTUnref<SkData> src( 111 SkAutoTUnref<SkData> src(
112 SkImageEncoder::EncodeData(bitmap, SkImageEncoder::kPNG_Type, 1 00)); 112 SkImageEncoder::EncodeData(bitmap, SkImageEncoder::kPNG_Type, 1 00));
113 return SkImage::NewFromGenerator( 113 return SkImage::NewFromGenerator(
114 SkDecodingImageGenerator::Create(src, SkDecodingImageGenerator:: Options())); 114 SkDecodingImageGenerator::Create(src, SkDecodingImageGenerator:: Options()));
115 } 115 }
116 } 116 }
117 SkASSERT(false); 117 SkASSERT(false);
118 return NULL; 118 return NULL;
119 } 119 }
120 120
121 static void set_pixels(SkPMColor pixels[], int count, SkPMColor color) {
122 sk_memset32(pixels, color, count);
123 }
124 static bool has_pixels(const SkPMColor pixels[], int count, SkPMColor expected) {
125 for (int i = 0; i < count; ++i) {
126 if (pixels[i] != expected) {
127 return false;
128 }
129 }
130 return true;
131 }
132
robertphillips 2014/12/10 17:03:43 // test SkImage's readPixels entry point ?
133 static void test_readpixels(skiatest::Reporter* reporter, SkImage* image, SkPMCo lor expected) {
134 const SkPMColor notExpected = ~expected;
135
136 const int w = 2, h = 2;
137 const size_t rowBytes = w * sizeof(SkPMColor);
138 SkPMColor pixels[w*h];
139
140 SkImageInfo info;
141
142 info = SkImageInfo::MakeUnknown(w, h);
143 REPORTER_ASSERT(reporter, !image->readPixels(info, pixels, rowBytes, 0, 0));
144
145 // out-of-bounds should fail
146 info = SkImageInfo::MakeN32Premul(w, h);
147 REPORTER_ASSERT(reporter, !image->readPixels(info, pixels, rowBytes, -w, 0)) ;
148 REPORTER_ASSERT(reporter, !image->readPixels(info, pixels, rowBytes, 0, -h)) ;
149 REPORTER_ASSERT(reporter, !image->readPixels(info, pixels, rowBytes, image-> width(), 0));
150 REPORTER_ASSERT(reporter, !image->readPixels(info, pixels, rowBytes, 0, imag e->height()));
151
152 // top-left should succeed
153 set_pixels(pixels, w*h, notExpected);
154 REPORTER_ASSERT(reporter, image->readPixels(info, pixels, rowBytes, 0, 0));
155 REPORTER_ASSERT(reporter, has_pixels(pixels, w*h, expected));
156
157 // bottom-right should succeed
158 set_pixels(pixels, w*h, notExpected);
159 REPORTER_ASSERT(reporter, image->readPixels(info, pixels, rowBytes,
160 image->width() - w, image->heigh t() - h));
161 REPORTER_ASSERT(reporter, has_pixels(pixels, w*h, expected));
162
163 // partial top-left should succeed
164 set_pixels(pixels, w*h, notExpected);
165 REPORTER_ASSERT(reporter, image->readPixels(info, pixels, rowBytes, -1, -1)) ;
166 REPORTER_ASSERT(reporter, pixels[3] == expected);
167 REPORTER_ASSERT(reporter, has_pixels(pixels, w*h - 1, notExpected));
168
169 // partial bottom-right should succeed
170 set_pixels(pixels, w*h, notExpected);
171 REPORTER_ASSERT(reporter, image->readPixels(info, pixels, rowBytes,
172 image->width() - 1, image->heigh t() - 1));
173 REPORTER_ASSERT(reporter, pixels[0] == expected);
174 REPORTER_ASSERT(reporter, has_pixels(&pixels[1], w*h - 1, notExpected));
175 }
176
121 static void test_imagepeek(skiatest::Reporter* reporter, GrContextFactory* facto ry) { 177 static void test_imagepeek(skiatest::Reporter* reporter, GrContextFactory* facto ry) {
122 static const struct { 178 static const struct {
123 ImageType fType; 179 ImageType fType;
124 bool fPeekShouldSucceed; 180 bool fPeekShouldSucceed;
125 const char* fName; 181 const char* fName;
126 } gRec[] = { 182 } gRec[] = {
127 { kRasterCopy_ImageType, true, "RasterCopy" }, 183 { kRasterCopy_ImageType, true, "RasterCopy" },
128 { kRasterData_ImageType, true, "RasterData" }, 184 { kRasterData_ImageType, true, "RasterData" },
129 { kGpu_ImageType, false, "Gpu" }, 185 { kGpu_ImageType, false, "Gpu" },
130 { kCodec_ImageType, false, "Codec" }, 186 { kCodec_ImageType, false, "Codec" },
(...skipping 21 matching lines...) Expand all
152 REPORTER_ASSERT(reporter, gRec[i].fPeekShouldSucceed == success); 208 REPORTER_ASSERT(reporter, gRec[i].fPeekShouldSucceed == success);
153 if (success) { 209 if (success) {
154 REPORTER_ASSERT(reporter, 10 == info.width()); 210 REPORTER_ASSERT(reporter, 10 == info.width());
155 REPORTER_ASSERT(reporter, 10 == info.height()); 211 REPORTER_ASSERT(reporter, 10 == info.height());
156 REPORTER_ASSERT(reporter, kN32_SkColorType == info.colorType()); 212 REPORTER_ASSERT(reporter, kN32_SkColorType == info.colorType());
157 REPORTER_ASSERT(reporter, kPremul_SkAlphaType == info.alphaType() || 213 REPORTER_ASSERT(reporter, kPremul_SkAlphaType == info.alphaType() ||
158 kOpaque_SkAlphaType == info.alphaType()); 214 kOpaque_SkAlphaType == info.alphaType());
159 REPORTER_ASSERT(reporter, info.minRowBytes() <= rowBytes); 215 REPORTER_ASSERT(reporter, info.minRowBytes() <= rowBytes);
160 REPORTER_ASSERT(reporter, pmcolor == *(const SkPMColor*)addr); 216 REPORTER_ASSERT(reporter, pmcolor == *(const SkPMColor*)addr);
161 } 217 }
218
219 test_readpixels(reporter, image, pmcolor);
162 } 220 }
163 } 221 }
164 222
165 static void test_canvaspeek(skiatest::Reporter* reporter, 223 static void test_canvaspeek(skiatest::Reporter* reporter,
166 GrContextFactory* factory) { 224 GrContextFactory* factory) {
167 static const struct { 225 static const struct {
168 SurfaceType fType; 226 SurfaceType fType;
169 bool fPeekShouldSucceed; 227 bool fPeekShouldSucceed;
170 } gRec[] = { 228 } gRec[] = {
171 { kRaster_SurfaceType, true }, 229 { kRaster_SurfaceType, true },
(...skipping 272 matching lines...) Expand 10 before | Expand all | Expand 10 after
444 TestSurfaceNoCanvas(reporter, kGpuScratch_SurfaceType, context, SkSurface::kDiscard_ContentChangeMode); 502 TestSurfaceNoCanvas(reporter, kGpuScratch_SurfaceType, context, SkSurface::kDiscard_ContentChangeMode);
445 TestSurfaceNoCanvas(reporter, kGpu_SurfaceType, context, SkSurfa ce::kRetain_ContentChangeMode); 503 TestSurfaceNoCanvas(reporter, kGpu_SurfaceType, context, SkSurfa ce::kRetain_ContentChangeMode);
446 TestSurfaceNoCanvas(reporter, kGpuScratch_SurfaceType, context, SkSurface::kRetain_ContentChangeMode); 504 TestSurfaceNoCanvas(reporter, kGpuScratch_SurfaceType, context, SkSurface::kRetain_ContentChangeMode);
447 TestGetTexture(reporter, kGpu_SurfaceType, context); 505 TestGetTexture(reporter, kGpu_SurfaceType, context);
448 TestGetTexture(reporter, kGpuScratch_SurfaceType, context); 506 TestGetTexture(reporter, kGpuScratch_SurfaceType, context);
449 } 507 }
450 } 508 }
451 } 509 }
452 #endif 510 #endif
453 } 511 }
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