reed | 871872f | 2015-06-22 12:48:26 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2015 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 "SkData.h" |
| 10 | #include "SkDevice.h" |
| 11 | #include "SkImageEncoder.h" |
| 12 | #include "SkImage_Base.h" |
| 13 | #include "SkRRect.h" |
| 14 | #include "SkSurface.h" |
| 15 | #include "SkUtils.h" |
| 16 | #include "Test.h" |
| 17 | |
| 18 | #if SK_SUPPORT_GPU |
| 19 | #include "GrContextFactory.h" |
| 20 | #include "GrTest.h" |
| 21 | #include "gl/GrGLInterface.h" |
| 22 | #include "gl/GrGLUtil.h" |
| 23 | #else |
| 24 | class GrContextFactory; |
| 25 | class GrContext; |
| 26 | #endif |
| 27 | |
| 28 | static void assert_equal(skiatest::Reporter* reporter, SkImage* a, const SkIRect* subsetA, |
| 29 | SkImage* b) { |
| 30 | const int widthA = subsetA ? subsetA->width() : a->width(); |
| 31 | const int heightA = subsetA ? subsetA->height() : a->height(); |
| 32 | |
| 33 | REPORTER_ASSERT(reporter, widthA == b->width()); |
| 34 | REPORTER_ASSERT(reporter, heightA == b->height()); |
| 35 | #if 0 |
| 36 | // see skbug.com/3965 |
| 37 | bool AO = a->isOpaque(); |
| 38 | bool BO = b->isOpaque(); |
| 39 | REPORTER_ASSERT(reporter, AO == BO); |
| 40 | #endif |
| 41 | |
| 42 | SkImageInfo info = SkImageInfo::MakeN32(widthA, heightA, |
| 43 | a->isOpaque() ? kOpaque_SkAlphaType : kPremul_SkAlphaType); |
| 44 | SkAutoPixmapStorage pmapA, pmapB; |
| 45 | pmapA.alloc(info); |
| 46 | pmapB.alloc(info); |
| 47 | |
| 48 | const int srcX = subsetA ? subsetA->x() : 0; |
| 49 | const int srcY = subsetA ? subsetA->y() : 0; |
| 50 | |
| 51 | REPORTER_ASSERT(reporter, a->readPixels(pmapA, srcX, srcY)); |
| 52 | REPORTER_ASSERT(reporter, b->readPixels(pmapB, 0, 0)); |
| 53 | |
| 54 | const size_t widthBytes = widthA * info.bytesPerPixel(); |
| 55 | for (int y = 0; y < heightA; ++y) { |
| 56 | REPORTER_ASSERT(reporter, !memcmp(pmapA.addr32(0, y), pmapB.addr32(0, y), widthBytes)); |
| 57 | } |
| 58 | } |
| 59 | |
| 60 | static SkImage* make_image(GrContext* ctx, int w, int h, const SkIRect& ir) { |
| 61 | const SkImageInfo info = SkImageInfo::MakeN32(w, h, kOpaque_SkAlphaType); |
| 62 | SkAutoTUnref<SkSurface> surface(ctx ? |
| 63 | SkSurface::NewRenderTarget(ctx, SkSurface::kNo_Budgeted, info) : |
| 64 | SkSurface::NewRaster(info)); |
| 65 | SkCanvas* canvas = surface->getCanvas(); |
| 66 | canvas->clear(SK_ColorWHITE); |
| 67 | |
| 68 | SkPaint paint; |
| 69 | paint.setColor(SK_ColorBLACK); |
| 70 | canvas->drawRect(SkRect::Make(ir), paint); |
| 71 | return surface->newImageSnapshot(); |
| 72 | } |
| 73 | |
| 74 | static void test_encode(skiatest::Reporter* reporter, GrContext* ctx) { |
| 75 | const SkIRect ir = SkIRect::MakeXYWH(5, 5, 10, 10); |
| 76 | SkAutoTUnref<SkImage> orig(make_image(ctx, 20, 20, ir)); |
| 77 | SkAutoTUnref<SkData> origEncoded(orig->encode()); |
| 78 | REPORTER_ASSERT(reporter, origEncoded); |
| 79 | REPORTER_ASSERT(reporter, origEncoded->size() > 0); |
| 80 | |
| 81 | SkAutoTUnref<SkImage> decoded(SkImage::NewFromEncoded(origEncoded)); |
| 82 | REPORTER_ASSERT(reporter, decoded); |
| 83 | assert_equal(reporter, orig, NULL, decoded); |
| 84 | |
| 85 | // Now see if we can instantiate an image from a subset of the surface/origEncoded |
| 86 | |
| 87 | decoded.reset(SkImage::NewFromEncoded(origEncoded, &ir)); |
| 88 | REPORTER_ASSERT(reporter, decoded); |
| 89 | assert_equal(reporter, orig, &ir, decoded); |
| 90 | } |
| 91 | |
| 92 | DEF_TEST(Image_Encode_Cpu, reporter) { |
| 93 | test_encode(reporter, NULL); |
| 94 | } |
| 95 | |
| 96 | #if SK_SUPPORT_GPU |
| 97 | DEF_GPUTEST(Image_Encode_Gpu, reporter, factory) { |
| 98 | GrContext* ctx = factory->get(GrContextFactory::kNative_GLContextType); |
| 99 | if (!ctx) { |
| 100 | REPORTER_ASSERT(reporter, false); |
| 101 | return; |
| 102 | } |
| 103 | test_encode(reporter, ctx); |
| 104 | } |
| 105 | #endif |