1 /*
2 * Copyright 2014 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 "include/core/SkAlphaType.h"
9 #include "include/core/SkCanvas.h"
10 #include "include/core/SkColor.h"
11 #include "include/core/SkColorSpace.h"
12 #include "include/core/SkImage.h"
13 #include "include/core/SkImageInfo.h"
14 #include "include/core/SkPicture.h" // IWYU pragma: keep
15 #include "include/core/SkPixmap.h"
16 #include "include/core/SkRefCnt.h"
17 #include "include/core/SkSurface.h"
18 #include "include/core/SkTypes.h"
19 #include "include/gpu/GpuTypes.h"
20 #include "include/gpu/ganesh/GrDirectContext.h"
21 #include "include/gpu/ganesh/SkSurfaceGanesh.h"
22 #include "tests/CtsEnforcement.h"
23 #include "tests/Test.h"
24 #include "tools/DecodeUtils.h"
25 #include "tools/Resources.h"
26
27 #include <cstdint>
28 #include <initializer_list>
29
30 struct GrContextOptions;
31
check_isopaque(skiatest::Reporter * reporter,const sk_sp<SkSurface> & surface,bool expectedOpaque)32 static void check_isopaque(skiatest::Reporter* reporter, const sk_sp<SkSurface>& surface,
33 bool expectedOpaque) {
34 sk_sp<SkImage> image(surface->makeImageSnapshot());
35 REPORTER_ASSERT(reporter, image->isOpaque() == expectedOpaque);
36 }
37
DEF_TEST(ImageIsOpaqueTest,reporter)38 DEF_TEST(ImageIsOpaqueTest, reporter) {
39 SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
40 auto surfaceTransparent(SkSurfaces::Raster(infoTransparent));
41 check_isopaque(reporter, surfaceTransparent, false);
42
43 SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
44 auto surfaceOpaque(SkSurfaces::Raster(infoOpaque));
45 check_isopaque(reporter, surfaceOpaque, true);
46 }
47
DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(ImageIsOpaqueTest_Gpu,reporter,ctxInfo,CtsEnforcement::kApiLevel_T)48 DEF_GANESH_TEST_FOR_RENDERING_CONTEXTS(ImageIsOpaqueTest_Gpu,
49 reporter,
50 ctxInfo,
51 CtsEnforcement::kApiLevel_T) {
52 auto context = ctxInfo.directContext();
53 SkImageInfo infoTransparent = SkImageInfo::MakeN32Premul(5, 5);
54 auto surfaceTransparent(
55 SkSurfaces::RenderTarget(context, skgpu::Budgeted::kNo, infoTransparent));
56 check_isopaque(reporter, surfaceTransparent, false);
57
58 SkImageInfo infoOpaque = SkImageInfo::MakeN32(5, 5, kOpaque_SkAlphaType);
59 auto surfaceOpaque(SkSurfaces::RenderTarget(context, skgpu::Budgeted::kNo, infoOpaque));
60
61 check_isopaque(reporter, surfaceOpaque, true);
62 }
63
64 ///////////////////////////////////////////////////////////////////////////////////////////////////
65 #include "include/core/SkPictureRecorder.h"
66
make_picture()67 static sk_sp<SkPicture> make_picture() {
68 SkPictureRecorder recorder;
69 SkCanvas* canvas = recorder.beginRecording({ 0, 0, 10, 10 });
70 canvas->drawColor(SK_ColorRED);
71 return recorder.finishRecordingAsPicture();
72 }
73
DEF_TEST(Image_isAlphaOnly,reporter)74 DEF_TEST(Image_isAlphaOnly, reporter) {
75 SkPMColor pmColors = 0;
76 SkPixmap pmap = {
77 SkImageInfo::MakeN32Premul(1, 1),
78 &pmColors,
79 sizeof(pmColors)
80 };
81 for (auto& image : {
82 SkImages::RasterFromPixmapCopy(pmap),
83 ToolUtils::GetResourceAsImage("images/mandrill_128.png"),
84 ToolUtils::GetResourceAsImage("images/color_wheel.jpg"),
85 SkImages::DeferredFromPicture(make_picture(),
86 {10, 10},
87 nullptr,
88 nullptr,
89 SkImages::BitDepth::kU8,
90 SkColorSpace::MakeSRGB()),
91 }) {
92 REPORTER_ASSERT(reporter, image->isAlphaOnly() == false);
93 }
94
95 REPORTER_ASSERT(
96 reporter,
97 SkImages::RasterFromPixmapCopy({SkImageInfo::MakeA8(1, 1), (uint8_t*)&pmColors, 1})
98 ->isAlphaOnly() == true);
99 }
100
