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 "SkCanvas.h" 9 #include "SkSpecialImage.h" 10 #include "SkSpecialSurface.h" 11 #include "Test.h" 12 13 #if SK_SUPPORT_GPU 14 #include "GrContext.h" 15 #include "SkGr.h" 16 #endif 17 18 class TestingSpecialSurfaceAccess { 19 public: 20 static const SkIRect& Subset(const SkSpecialSurface* surf) { 21 return surf->subset(); 22 } 23 24 static const SkIRect& Subset(const SkSpecialImage* img) { 25 return img->subset(); 26 } 27 }; 28 29 // Both 'kSmallerSize' and 'kFullSize' need to be a non-power-of-2 to exercise 30 // the gpu's loose fit behavior 31 static const int kSmallerSize = 10; 32 static const int kPad = 5; 33 static const int kFullSize = kSmallerSize + 2 * kPad; 34 35 // Exercise the public API of SkSpecialSurface (e.g., getCanvas, newImageSnapshot) 36 static void test_surface(SkSpecialSurface* surf, skiatest::Reporter* reporter, int offset) { 37 38 const SkIRect surfSubset = TestingSpecialSurfaceAccess::Subset(surf); 39 REPORTER_ASSERT(reporter, offset == surfSubset.fLeft); 40 REPORTER_ASSERT(reporter, offset == surfSubset.fTop); 41 REPORTER_ASSERT(reporter, kSmallerSize == surfSubset.width()); 42 REPORTER_ASSERT(reporter, kSmallerSize == surfSubset.height()); 43 44 SkCanvas* canvas = surf->getCanvas(); 45 SkASSERT_RELEASE(canvas); 46 47 canvas->clear(SK_ColorRED); 48 49 SkAutoTUnref<SkSpecialImage> img(surf->newImageSnapshot()); 50 REPORTER_ASSERT(reporter, img); 51 52 const SkIRect imgSubset = TestingSpecialSurfaceAccess::Subset(img); 53 REPORTER_ASSERT(reporter, surfSubset == imgSubset); 54 55 // the canvas was invalidated by the newImageSnapshot call 56 REPORTER_ASSERT(reporter, !surf->getCanvas()); 57 } 58 59 DEF_TEST(SpecialSurface_Raster, reporter) { 60 61 SkImageInfo info = SkImageInfo::MakeN32(kSmallerSize, kSmallerSize, kOpaque_SkAlphaType); 62 SkAutoTUnref<SkSpecialSurface> surf(SkSpecialSurface::NewRaster(nullptr, info)); 63 64 test_surface(surf, reporter, 0); 65 } 66 67 DEF_TEST(SpecialSurface_Raster2, reporter) { 68 69 SkBitmap bm; 70 bm.allocN32Pixels(kFullSize, kFullSize, true); 71 72 const SkIRect subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize); 73 74 SkAutoTUnref<SkSpecialSurface> surf(SkSpecialSurface::NewFromBitmap(nullptr, subset, bm)); 75 76 test_surface(surf, reporter, kPad); 77 78 // TODO: check that the clear didn't escape the active region 79 } 80 81 #if SK_SUPPORT_GPU 82 83 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialSurface_Gpu1, reporter, context) { 84 GrSurfaceDesc desc; 85 desc.fConfig = kSkia8888_GrPixelConfig; 86 desc.fFlags = kRenderTarget_GrSurfaceFlag; 87 desc.fWidth = kSmallerSize; 88 desc.fHeight = kSmallerSize; 89 90 SkAutoTUnref<SkSpecialSurface> surf(SkSpecialSurface::NewRenderTarget(nullptr, context, desc)); 91 92 test_surface(surf, reporter, 0); 93 } 94 95 // test the more flexible factory 96 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(SpecialSurface_Gpu2, reporter, context) { 97 GrSurfaceDesc desc; 98 desc.fConfig = kSkia8888_GrPixelConfig; 99 desc.fFlags = kRenderTarget_GrSurfaceFlag; 100 desc.fWidth = kFullSize; 101 desc.fHeight = kFullSize; 102 103 SkAutoTUnref<GrTexture> temp(context->textureProvider()->createApproxTexture(desc)); 104 SkASSERT_RELEASE(temp); 105 106 const SkIRect subset = SkIRect::MakeXYWH(kPad, kPad, kSmallerSize, kSmallerSize); 107 108 SkAutoTUnref<SkSpecialSurface> surf(SkSpecialSurface::NewFromTexture(nullptr, subset, temp)); 109 110 test_surface(surf, reporter, kPad); 111 112 // TODO: check that the clear didn't escape the active region 113 } 114 115 #endif 116
