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 #include "GrBackendSurface.h"
19 #include "GrContext.h"
20 #include "GrContextPriv.h"
21 #include "GrProxyProvider.h"
22 #include "GrSurfaceProxy.h"
23 #include "GrTextureProxy.h"
24 #include "SkGr.h"
25
26
27 // This test creates backing resources exactly sized to [kFullSize x kFullSize].
28 // It then wraps them in an SkSpecialImage with only the center (red) region being active.
29 // It then draws the SkSpecialImage to a full sized (all blue) canvas and checks that none
30 // of the inactive (green) region leaked out.
31
32 static const int kSmallerSize = 10;
33 static const int kPad = 3;
34 static const int kFullSize = kSmallerSize + 2 * kPad;
35
36 // Create a bitmap with red in the center and green around it
create_bm()37 static SkBitmap create_bm() {
38 SkBitmap bm;
39 bm.allocN32Pixels(kFullSize, kFullSize, true);
40
41 SkCanvas temp(bm);
42
43 temp.clear(SK_ColorGREEN);
44 SkPaint p;
45 p.setColor(SK_ColorRED);
46 p.setAntiAlias(false);
47
48 temp.drawRect(SkRect::MakeXYWH(SkIntToScalar(kPad), SkIntToScalar(kPad),
49 SkIntToScalar(kSmallerSize), SkIntToScalar(kSmallerSize)),
50 p);
51
52 return bm;
53 }
54
55 // Basic test of the SkSpecialImage public API (e.g., peekTexture, peekPixels & draw)
test_image(const sk_sp<SkSpecialImage> & img,skiatest::Reporter * reporter,GrContext * context,bool isGPUBacked,int offset,int size)56 static void test_image(const sk_sp<SkSpecialImage>& img, skiatest::Reporter* reporter,
57 GrContext* context, bool isGPUBacked,
58 int offset, int size) {
59 const SkIRect subset = img->subset();
60 REPORTER_ASSERT(reporter, offset == subset.left());
61 REPORTER_ASSERT(reporter, offset == subset.top());
62 REPORTER_ASSERT(reporter, kSmallerSize == subset.width());
63 REPORTER_ASSERT(reporter, kSmallerSize == subset.height());
64
65 //--------------
66 // Test that isTextureBacked reports the correct backing type
67 REPORTER_ASSERT(reporter, isGPUBacked == img->isTextureBacked());
68
69 //--------------
70 // Test asTextureProxyRef - as long as there is a context this should succeed
71 if (context) {
72 sk_sp<GrTextureProxy> proxy(img->asTextureProxyRef(context));
73 REPORTER_ASSERT(reporter, proxy);
74 }
75
76 //--------------
77 // Test getROPixels - this should always succeed regardless of backing store
78 SkBitmap bitmap;
79 REPORTER_ASSERT(reporter, img->getROPixels(&bitmap));
80 if (context) {
81 REPORTER_ASSERT(reporter, kSmallerSize == bitmap.width());
82 REPORTER_ASSERT(reporter, kSmallerSize == bitmap.height());
83 } else {
84 REPORTER_ASSERT(reporter, size == bitmap.width());
85 REPORTER_ASSERT(reporter, size == bitmap.height());
86 }
87
88 //--------------
89 // Test that draw restricts itself to the subset
90 SkImageFilter::OutputProperties outProps(kN32_SkColorType, img->getColorSpace());
91 sk_sp<SkSpecialSurface> surf(img->makeSurface(outProps, SkISize::Make(kFullSize, kFullSize),
92 kPremul_SkAlphaType));
93
94 SkCanvas* canvas = surf->getCanvas();
95
96 canvas->clear(SK_ColorBLUE);
97 img->draw(canvas, SkIntToScalar(kPad), SkIntToScalar(kPad), nullptr);
98
99 SkBitmap bm;
100 bm.allocN32Pixels(kFullSize, kFullSize, false);
101
102 bool result = canvas->readPixels(bm.info(), bm.getPixels(), bm.rowBytes(), 0, 0);
103 SkASSERT_RELEASE(result);
104
105 // Only the center (red) portion should've been drawn into the canvas
106 REPORTER_ASSERT(reporter, SK_ColorBLUE == bm.getColor(kPad-1, kPad-1));
107 REPORTER_ASSERT(reporter, SK_ColorRED == bm.getColor(kPad, kPad));
108 REPORTER_ASSERT(reporter, SK_ColorRED == bm.getColor(kSmallerSize+kPad-1,
109 kSmallerSize+kPad-1));
110 REPORTER_ASSERT(reporter, SK_ColorBLUE == bm.getColor(kSmallerSize+kPad,
111 kSmallerSize+kPad));
112
113 //--------------
114 // Test that asImage & makeTightSurface return appropriately sized objects
115 // of the correct backing type
116 SkIRect newSubset = SkIRect::MakeWH(subset.width(), subset.height());
117 {
118 sk_sp<SkImage> tightImg(img->asImage(&newSubset));
119
120 REPORTER_ASSERT(reporter, tightImg->width() == subset.width());
121 REPORTER_ASSERT(reporter, tightImg->height() == subset.height());
122 REPORTER_ASSERT(reporter, isGPUBacked == tightImg->isTextureBacked());
123 SkPixmap tmpPixmap;
124 REPORTER_ASSERT(reporter, isGPUBacked != !!tightImg->peekPixels(&tmpPixmap));
125 }
126 {
127 SkImageFilter::OutputProperties outProps(kN32_SkColorType, img->getColorSpace());
128 sk_sp<SkSurface> tightSurf(img->makeTightSurface(outProps, subset.size()));
129
130 REPORTER_ASSERT(reporter, tightSurf->width() == subset.width());
131 REPORTER_ASSERT(reporter, tightSurf->height() == subset.height());
132 GrBackendTexture backendTex = tightSurf->getBackendTexture(
133 SkSurface::kDiscardWrite_BackendHandleAccess);
134 REPORTER_ASSERT(reporter, isGPUBacked == backendTex.isValid());
135 SkPixmap tmpPixmap;
136 REPORTER_ASSERT(reporter, isGPUBacked != !!tightSurf->peekPixels(&tmpPixmap));
137 }
138 }
139
DEF_TEST(SpecialImage_Raster,reporter)140 DEF_TEST(SpecialImage_Raster, reporter) {
141 SkBitmap bm = create_bm();
142
143 sk_sp<SkSpecialImage> fullSImage(SkSpecialImage::MakeFromRaster(
144 SkIRect::MakeWH(kFullSize, kFullSize),
145 bm));
146
147 const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
148
149 {
150 sk_sp<SkSpecialImage> subSImg1(SkSpecialImage::MakeFromRaster(subset, bm));
151 test_image(subSImg1, reporter, nullptr, false, kPad, kFullSize);
152 }
153
154 {
155 sk_sp<SkSpecialImage> subSImg2(fullSImage->makeSubset(subset));
156 test_image(subSImg2, reporter, nullptr, false, 0, kSmallerSize);
157 }
158 }
159
test_specialimage_image(skiatest::Reporter * reporter)160 static void test_specialimage_image(skiatest::Reporter* reporter) {
161 SkBitmap bm = create_bm();
162
163 sk_sp<SkImage> fullImage(SkImage::MakeFromBitmap(bm));
164
165 sk_sp<SkSpecialImage> fullSImage(SkSpecialImage::MakeFromImage(
166 nullptr,
167 SkIRect::MakeWH(kFullSize, kFullSize),
168 fullImage));
169
170 const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
171
172 {
173 sk_sp<SkSpecialImage> subSImg1(SkSpecialImage::MakeFromImage(nullptr, subset, fullImage));
174 test_image(subSImg1, reporter, nullptr, false, kPad, kFullSize);
175 }
176
177 {
178 sk_sp<SkSpecialImage> subSImg2(fullSImage->makeSubset(subset));
179 test_image(subSImg2, reporter, nullptr, false, 0, kSmallerSize);
180 }
181 }
182
DEF_TEST(SpecialImage_Image_Legacy,reporter)183 DEF_TEST(SpecialImage_Image_Legacy, reporter) {
184 test_specialimage_image(reporter);
185 }
186
test_texture_backed(skiatest::Reporter * reporter,const sk_sp<SkSpecialImage> & orig,const sk_sp<SkSpecialImage> & gpuBacked)187 static void test_texture_backed(skiatest::Reporter* reporter,
188 const sk_sp<SkSpecialImage>& orig,
189 const sk_sp<SkSpecialImage>& gpuBacked) {
190 REPORTER_ASSERT(reporter, gpuBacked);
191 REPORTER_ASSERT(reporter, gpuBacked->isTextureBacked());
192 REPORTER_ASSERT(reporter, gpuBacked->uniqueID() == orig->uniqueID());
193 REPORTER_ASSERT(reporter, gpuBacked->subset().width() == orig->subset().width() &&
194 gpuBacked->subset().height() == orig->subset().height());
195 REPORTER_ASSERT(reporter, gpuBacked->getColorSpace() == orig->getColorSpace());
196 }
197
198 // Test out the SkSpecialImage::makeTextureImage entry point
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_MakeTexture,reporter,ctxInfo)199 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_MakeTexture, reporter, ctxInfo) {
200 GrContext* context = ctxInfo.grContext();
201 GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider();
202 SkBitmap bm = create_bm();
203
204 const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
205
206 {
207 // raster
208 sk_sp<SkSpecialImage> rasterImage(SkSpecialImage::MakeFromRaster(
209 SkIRect::MakeWH(kFullSize,
210 kFullSize),
211 bm));
212
213 {
214 sk_sp<SkSpecialImage> fromRaster(rasterImage->makeTextureImage(context));
215 test_texture_backed(reporter, rasterImage, fromRaster);
216 }
217
218 {
219 sk_sp<SkSpecialImage> subRasterImage(rasterImage->makeSubset(subset));
220
221 sk_sp<SkSpecialImage> fromSubRaster(subRasterImage->makeTextureImage(context));
222 test_texture_backed(reporter, subRasterImage, fromSubRaster);
223 }
224 }
225
226 {
227 // gpu
228 sk_sp<SkImage> rasterImage = SkImage::MakeFromBitmap(bm);
229 sk_sp<GrTextureProxy> proxy =
230 proxyProvider->createTextureProxy(rasterImage, kNone_GrSurfaceFlags, 1,
231 SkBudgeted::kNo, SkBackingFit::kExact);
232 if (!proxy) {
233 return;
234 }
235
236 sk_sp<SkSpecialImage> gpuImage(SkSpecialImage::MakeDeferredFromGpu(
237 context,
238 SkIRect::MakeWH(kFullSize, kFullSize),
239 kNeedNewImageUniqueID_SpecialImage,
240 std::move(proxy), nullptr));
241
242 {
243 sk_sp<SkSpecialImage> fromGPU(gpuImage->makeTextureImage(context));
244 test_texture_backed(reporter, gpuImage, fromGPU);
245 }
246
247 {
248 sk_sp<SkSpecialImage> subGPUImage(gpuImage->makeSubset(subset));
249
250 sk_sp<SkSpecialImage> fromSubGPU(subGPUImage->makeTextureImage(context));
251 test_texture_backed(reporter, subGPUImage, fromSubGPU);
252 }
253 }
254 }
255
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_Gpu,reporter,ctxInfo)256 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_Gpu, reporter, ctxInfo) {
257 GrContext* context = ctxInfo.grContext();
258 GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider();
259 SkBitmap bm = create_bm();
260 sk_sp<SkImage> rasterImage = SkImage::MakeFromBitmap(bm);
261
262 sk_sp<GrTextureProxy> proxy =
263 proxyProvider->createTextureProxy(rasterImage, kNone_GrSurfaceFlags, 1,
264 SkBudgeted::kNo, SkBackingFit::kExact);
265 if (!proxy) {
266 return;
267 }
268
269 sk_sp<SkSpecialImage> fullSImg(SkSpecialImage::MakeDeferredFromGpu(
270 context,
271 SkIRect::MakeWH(kFullSize, kFullSize),
272 kNeedNewImageUniqueID_SpecialImage,
273 proxy, nullptr));
274
275 const SkIRect& subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize);
276
277 {
278 sk_sp<SkSpecialImage> subSImg1(SkSpecialImage::MakeDeferredFromGpu(
279 context, subset,
280 kNeedNewImageUniqueID_SpecialImage,
281 std::move(proxy), nullptr));
282 test_image(subSImg1, reporter, context, true, kPad, kFullSize);
283 }
284
285 {
286 sk_sp<SkSpecialImage> subSImg2(fullSImg->makeSubset(subset));
287 test_image(subSImg2, reporter, context, true, kPad, kFullSize);
288 }
289 }
290
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_ReadbackAndCachingSubsets_Gpu,reporter,ctxInfo)291 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialImage_ReadbackAndCachingSubsets_Gpu, reporter, ctxInfo) {
292 GrContext* context = ctxInfo.grContext();
293 SkImageInfo ii = SkImageInfo::Make(50, 50, kN32_SkColorType, kPremul_SkAlphaType);
294 auto surface = SkSurface::MakeRenderTarget(context, SkBudgeted::kNo, ii);
295
296 // Fill out our surface:
297 // Green | Blue
298 // Red | Green
299 {
300 surface->getCanvas()->clear(SK_ColorGREEN);
301 SkPaint p;
302 p.setColor(SK_ColorRED);
303 surface->getCanvas()->drawRect(SkRect::MakeXYWH(0, 25, 25, 25), p);
304 p.setColor(SK_ColorBLUE);
305 surface->getCanvas()->drawRect(SkRect::MakeXYWH(25, 0, 25, 25), p);
306 }
307
308 auto image = surface->makeImageSnapshot();
309 auto redImg = SkSpecialImage::MakeFromImage(context, SkIRect::MakeXYWH(10, 30, 10, 10), image);
310 auto blueImg = SkSpecialImage::MakeFromImage(context, SkIRect::MakeXYWH(30, 10, 10, 10), image);
311
312 // This isn't necessary, but if it ever becomes false, then the cache collision bug that we're
313 // checking below is irrelevant.
314 REPORTER_ASSERT(reporter, redImg->uniqueID() == blueImg->uniqueID());
315
316 SkBitmap redBM, blueBM;
317 SkAssertResult(redImg->getROPixels(&redBM));
318 SkAssertResult(blueImg->getROPixels(&blueBM));
319
320 // Each image should read from the correct sub-rect. Past bugs (skbug.com/8448) have included:
321 // - Always reading back from (0, 0), producing green
322 // - Incorrectly hitting the cache on the 2nd read-back, causing blueBM to be red
323 REPORTER_ASSERT(reporter, redBM.getColor(0, 0) == SK_ColorRED,
324 "0x%08x != 0x%08x", redBM.getColor(0, 0), SK_ColorRED);
325 REPORTER_ASSERT(reporter, blueBM.getColor(0, 0) == SK_ColorBLUE,
326 "0x%08x != 0x%08x", blueBM.getColor(0, 0), SK_ColorBLUE);
327 }
328