SpecialImageTest.cpp revision eed6b0e1d865a1f93143c09961debba0aca592ca
1/* 2 * Copyright 2016 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 "SkAutoPixmapStorage.h" 9#include "SkBitmap.h" 10#include "SkCanvas.h" 11#include "SkImage.h" 12#include "SkPixmap.h" 13#include "SkSpecialImage.h" 14#include "SkSpecialSurface.h" 15#include "SkSurface.h" 16#include "Test.h" 17 18#if SK_SUPPORT_GPU 19#include "GrContext.h" 20#endif 21 22 23// This test creates backing resources exactly sized to [kFullSize x kFullSize]. 24// It then wraps them in an SkSpecialImage with only the center (red) region being active. 25// It then draws the SkSpecialImage to a full sized (all blue) canvas and checks that none 26// of the inactive (green) region leaked out. 27 28static const int kSmallerSize = 10; 29static const int kPad = 3; 30static const int kFullSize = kSmallerSize + 2 * kPad; 31 32// Create a bitmap with red in the center and green around it 33static SkBitmap create_bm() { 34 SkBitmap bm; 35 bm.allocN32Pixels(kFullSize, kFullSize, true); 36 37 SkCanvas temp(bm); 38 39 temp.clear(SK_ColorGREEN); 40 SkPaint p; 41 p.setColor(SK_ColorRED); 42 p.setAntiAlias(false); 43 44 temp.drawRect(SkRect::MakeXYWH(SkIntToScalar(kPad), SkIntToScalar(kPad), 45 SkIntToScalar(kSmallerSize), SkIntToScalar(kSmallerSize)), 46 p); 47 48 return bm; 49} 50 51// Basic test of the SkSpecialImage public API (e.g., peekTexture, peekPixels & draw) 52static void test_image(const sk_sp<SkSpecialImage>& img, skiatest::Reporter* reporter, 53 GrContext* context, bool peekTextureSucceeds, 54 int offset, int size) { 55 const SkIRect subset = img->subset(); 56 REPORTER_ASSERT(reporter, offset == subset.left()); 57 REPORTER_ASSERT(reporter, offset == subset.top()); 58 REPORTER_ASSERT(reporter, kSmallerSize == subset.width()); 59 REPORTER_ASSERT(reporter, kSmallerSize == subset.height()); 60 61 //-------------- 62 // Test that peekTexture reports the correct backing type 63 REPORTER_ASSERT(reporter, peekTextureSucceeds == img->isTextureBacked()); 64 65#if SK_SUPPORT_GPU 66 //-------------- 67 // Test getTextureAsRef - as long as there is a context this should succeed 68 if (context) { 69 sk_sp<GrTexture> texture(img->asTextureRef(context)); 70 REPORTER_ASSERT(reporter, texture); 71 } 72#endif 73 74 //-------------- 75 // Test getROPixels - this should always succeed regardless of backing store 76 SkBitmap bitmap; 77 REPORTER_ASSERT(reporter, img->getROPixels(&bitmap)); 78 if (context) { 79 REPORTER_ASSERT(reporter, kSmallerSize == bitmap.width()); 80 REPORTER_ASSERT(reporter, kSmallerSize == bitmap.height()); 81 } else { 82 REPORTER_ASSERT(reporter, size == bitmap.width()); 83 REPORTER_ASSERT(reporter, size == bitmap.height()); 84 } 85 86 //-------------- 87 // Test that draw restricts itself to the subset 88 SkImageFilter::OutputProperties outProps(img->getColorSpace()); 89 sk_sp<SkSpecialSurface> surf(img->makeSurface(outProps, SkISize::Make(kFullSize, kFullSize), 90 kOpaque_SkAlphaType)); 91 92 SkCanvas* canvas = surf->getCanvas(); 93 94 canvas->clear(SK_ColorBLUE); 95 img->draw(canvas, SkIntToScalar(kPad), SkIntToScalar(kPad), nullptr); 96 97 SkBitmap bm; 98 bm.allocN32Pixels(kFullSize, kFullSize, true); 99 100 bool result = canvas->readPixels(bm.info(), bm.getPixels(), bm.rowBytes(), 0, 0); 101 SkASSERT_RELEASE(result); 102 103 // Only the center (red) portion should've been drawn into the canvas 104 REPORTER_ASSERT(reporter, SK_ColorBLUE == bm.getColor(kPad-1, kPad-1)); 105 REPORTER_ASSERT(reporter, SK_ColorRED == bm.getColor(kPad, kPad)); 106 REPORTER_ASSERT(reporter, SK_ColorRED == bm.getColor(kSmallerSize+kPad-1, 107 kSmallerSize+kPad-1)); 108 REPORTER_ASSERT(reporter, SK_ColorBLUE == bm.getColor(kSmallerSize+kPad, 109 kSmallerSize+kPad)); 110 111 //-------------- 112 // Test that makeTightSubset & makeTightSurface return appropriately sized objects 113 // of the correct backing type 114 SkIRect newSubset = SkIRect::MakeWH(subset.width(), subset.height()); 115 { 116 sk_sp<SkImage> tightImg(img->makeTightSubset(newSubset)); 117 118 REPORTER_ASSERT(reporter, tightImg->width() == subset.width()); 119 REPORTER_ASSERT(reporter, tightImg->height() == subset.height()); 120 REPORTER_ASSERT(reporter, peekTextureSucceeds == !!tightImg->getTexture()); 121 SkPixmap tmpPixmap; 122 REPORTER_ASSERT(reporter, peekTextureSucceeds != !!tightImg->peekPixels(&tmpPixmap)); 123 } 124 { 125 SkImageFilter::OutputProperties outProps(img->getColorSpace()); 126 sk_sp<SkSurface> tightSurf(img->makeTightSurface(outProps, subset.size())); 127 128 REPORTER_ASSERT(reporter, tightSurf->width() == subset.width()); 129 REPORTER_ASSERT(reporter, tightSurf->height() == subset.height()); 130 REPORTER_ASSERT(reporter, peekTextureSucceeds == 131 !!tightSurf->getTextureHandle(SkSurface::kDiscardWrite_BackendHandleAccess)); 132 SkPixmap tmpPixmap; 133 REPORTER_ASSERT(reporter, peekTextureSucceeds != !!tightSurf->peekPixels(&tmpPixmap)); 134 } 135} 136 137DEF_TEST(SpecialImage_Raster, reporter) { 138 SkBitmap bm = create_bm(); 139 140 sk_sp<SkSpecialImage> fullSImage(SkSpecialImage::MakeFromRaster( 141 SkIRect::MakeWH(kFullSize, kFullSize), 142 bm)); 143 144 const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize); 145 146 { 147 sk_sp<SkSpecialImage> subSImg1(SkSpecialImage::MakeFromRaster(subset, bm)); 148 test_image(subSImg1, reporter, nullptr, false, kPad, kFullSize); 149 } 150 151 { 152 sk_sp<SkSpecialImage> subSImg2(fullSImage->makeSubset(subset)); 153 test_image(subSImg2, reporter, nullptr, false, 0, kSmallerSize); 154 } 155} 156 157DEF_TEST(SpecialImage_Image, reporter) { 158 SkBitmap bm = create_bm(); 159 160 sk_sp<SkImage> fullImage(SkImage::MakeFromBitmap(bm)); 161 162 sk_sp<SkSpecialImage> fullSImage(SkSpecialImage::MakeFromImage( 163 SkIRect::MakeWH(kFullSize, kFullSize), 164 fullImage)); 165 166 const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize); 167 168 { 169 sk_sp<SkSpecialImage> subSImg1(SkSpecialImage::MakeFromImage(subset, fullImage)); 170 test_image(subSImg1, reporter, nullptr, false, kPad, kFullSize); 171 } 172 173 { 174 sk_sp<SkSpecialImage> subSImg2(fullSImage->makeSubset(subset)); 175 test_image(subSImg2, reporter, nullptr, false, 0, kSmallerSize); 176 } 177} 178 179#if SK_SUPPORT_GPU 180 181static void test_texture_backed(skiatest::Reporter* reporter, 182 const sk_sp<SkSpecialImage>& orig, 183 const sk_sp<SkSpecialImage>& gpuBacked) { 184 REPORTER_ASSERT(reporter, gpuBacked); 185 REPORTER_ASSERT(reporter, gpuBacked->isTextureBacked()); 186 REPORTER_ASSERT(reporter, gpuBacked->uniqueID() == orig->uniqueID()); 187 REPORTER_ASSERT(reporter, gpuBacked->subset().width() == orig->subset().width() && 188 gpuBacked->subset().height() == orig->subset().height()); 189 REPORTER_ASSERT(reporter, gpuBacked->getColorSpace() == orig->getColorSpace()); 190} 191 192// Test out the SkSpecialImage::makeTextureImage entry point 193DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_MakeTexture, reporter, ctxInfo) { 194 GrContext* context = ctxInfo.grContext(); 195 SkBitmap bm = create_bm(); 196 197 const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize); 198 199 { 200 // raster 201 sk_sp<SkSpecialImage> rasterImage(SkSpecialImage::MakeFromRaster( 202 SkIRect::MakeWH(kFullSize, 203 kFullSize), 204 bm)); 205 206 { 207 sk_sp<SkSpecialImage> fromRaster(rasterImage->makeTextureImage(context)); 208 test_texture_backed(reporter, rasterImage, fromRaster); 209 } 210 211 { 212 sk_sp<SkSpecialImage> subRasterImage(rasterImage->makeSubset(subset)); 213 214 sk_sp<SkSpecialImage> fromSubRaster(subRasterImage->makeTextureImage(context)); 215 test_texture_backed(reporter, subRasterImage, fromSubRaster); 216 } 217 } 218 219 { 220 // gpu 221 GrSurfaceDesc desc; 222 desc.fConfig = kSkia8888_GrPixelConfig; 223 desc.fFlags = kNone_GrSurfaceFlags; 224 desc.fWidth = kFullSize; 225 desc.fHeight = kFullSize; 226 227 sk_sp<GrTexture> texture(context->textureProvider()->createTexture(desc, 228 SkBudgeted::kNo, 229 bm.getPixels(), 230 0)); 231 if (!texture) { 232 return; 233 } 234 235 sk_sp<SkSpecialImage> gpuImage(SkSpecialImage::MakeFromGpu( 236 SkIRect::MakeWH(kFullSize, 237 kFullSize), 238 kNeedNewImageUniqueID_SpecialImage, 239 std::move(texture), nullptr)); 240 241 { 242 sk_sp<SkSpecialImage> fromGPU(gpuImage->makeTextureImage(context)); 243 test_texture_backed(reporter, gpuImage, fromGPU); 244 } 245 246 { 247 sk_sp<SkSpecialImage> subGPUImage(gpuImage->makeSubset(subset)); 248 249 sk_sp<SkSpecialImage> fromSubGPU(subGPUImage->makeTextureImage(context)); 250 test_texture_backed(reporter, subGPUImage, fromSubGPU); 251 } 252 } 253} 254 255DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_Gpu, reporter, ctxInfo) { 256 GrContext* context = ctxInfo.grContext(); 257 SkBitmap bm = create_bm(); 258 259 GrSurfaceDesc desc; 260 desc.fConfig = kSkia8888_GrPixelConfig; 261 desc.fFlags = kNone_GrSurfaceFlags; 262 desc.fWidth = kFullSize; 263 desc.fHeight = kFullSize; 264 265 sk_sp<GrTexture> texture(context->textureProvider()->createTexture(desc, 266 SkBudgeted::kNo, 267 bm.getPixels(), 0)); 268 if (!texture) { 269 return; 270 } 271 272 sk_sp<SkSpecialImage> fullSImg(SkSpecialImage::MakeFromGpu( 273 SkIRect::MakeWH(kFullSize, kFullSize), 274 kNeedNewImageUniqueID_SpecialImage, 275 texture, nullptr)); 276 277 const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize); 278 279 { 280 sk_sp<SkSpecialImage> subSImg1(SkSpecialImage::MakeFromGpu( 281 subset, 282 kNeedNewImageUniqueID_SpecialImage, 283 texture, nullptr)); 284 test_image(subSImg1, reporter, context, true, kPad, kFullSize); 285 } 286 287 { 288 sk_sp<SkSpecialImage> subSImg2(fullSImg->makeSubset(subset)); 289 test_image(subSImg2, reporter, context, true, kPad, kFullSize); 290 } 291} 292 293#endif 294