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 // This is a GPU-backend specific test. It relies on static intializers to work
9
10 #include "SkTypes.h"
11
12 #if SK_SUPPORT_GPU && SK_ALLOW_STATIC_GLOBAL_INITIALIZERS && defined(SK_VULKAN)
13
14 #include "GrContextFactory.h"
15 #include "GrTest.h"
16 #include "Test.h"
17 #include "vk/GrVkGpu.h"
18
19 using sk_gpu_test::GrContextFactory;
20
fill_pixel_data(int width,int height,GrColor * data)21 void fill_pixel_data(int width, int height, GrColor* data) {
22
23 // build red-green gradient
24 for (int j = 0; j < height; ++j) {
25 for (int i = 0; i < width; ++i) {
26 unsigned int red = (unsigned int)(256.f*(i / (float)width));
27 unsigned int green = (unsigned int)(256.f*(j / (float)height));
28 data[i + j*width] = GrColorPackRGBA(red - (red>>8), green - (green>>8), 0xff, 0xff);
29 }
30 }
31 }
32
does_full_buffer_contain_correct_color(GrColor * srcBuffer,GrColor * dstBuffer,GrPixelConfig config,int width,int height)33 bool does_full_buffer_contain_correct_color(GrColor* srcBuffer,
34 GrColor* dstBuffer,
35 GrPixelConfig config,
36 int width,
37 int height) {
38 GrColor* srcPtr = srcBuffer;
39 GrColor* dstPtr = dstBuffer;
40 for (int j = 0; j < height; ++j) {
41 for (int i = 0; i < width; ++i) {
42 if (srcPtr[i] != dstPtr[i]) {
43 return false;
44 }
45 }
46 srcPtr += width;
47 dstPtr += width;
48 }
49 return true;
50 }
51
basic_texture_test(skiatest::Reporter * reporter,GrContext * context,GrPixelConfig config,bool renderTarget,bool linearTiling)52 void basic_texture_test(skiatest::Reporter* reporter, GrContext* context, GrPixelConfig config,
53 bool renderTarget, bool linearTiling) {
54 GrVkGpu* gpu = static_cast<GrVkGpu*>(context->getGpu());
55
56 const int kWidth = 16;
57 const int kHeight = 16;
58 SkAutoTMalloc<GrColor> srcBuffer(kWidth*kHeight);
59 SkAutoTMalloc<GrColor> dstBuffer(kWidth*kHeight);
60
61 fill_pixel_data(kWidth, kHeight, srcBuffer.get());
62
63 const GrVkCaps* caps = reinterpret_cast<const GrVkCaps*>(context->caps());
64
65 bool canCreate = true;
66 // the expectation is that the given config is texturable/renderable with optimal tiling
67 // but may not be with linear tiling
68 if (linearTiling) {
69 if (!caps->isConfigTexturableLinearly(config) ||
70 (renderTarget && !caps->isConfigRenderableLinearly(config, false))) {
71 canCreate = false;
72 }
73 }
74
75 GrSurfaceDesc surfDesc;
76 surfDesc.fFlags = renderTarget ? kRenderTarget_GrSurfaceFlag : kNone_GrSurfaceFlags;
77 if (linearTiling) {
78 surfDesc.fFlags |= kZeroCopy_GrSurfaceFlag;
79 }
80 surfDesc.fOrigin = kTopLeft_GrSurfaceOrigin;
81 surfDesc.fWidth = kWidth;
82 surfDesc.fHeight = kHeight;
83 surfDesc.fConfig = config;
84 surfDesc.fSampleCnt = 0;
85 GrTexture* tex0 = gpu->createTexture(surfDesc, SkBudgeted::kNo, srcBuffer, 0);
86 if (tex0) {
87 REPORTER_ASSERT(reporter, canCreate);
88 gpu->readPixels(tex0, 0, 0, kWidth, kHeight, config, dstBuffer, 0);
89 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
90 dstBuffer,
91 config,
92 kWidth,
93 kHeight));
94
95 tex0->writePixels(2, 10, 10, 2, config, srcBuffer);
96 memset(dstBuffer, 0, kWidth*kHeight*sizeof(GrColor));
97 gpu->readPixels(tex0, 2, 10, 10, 2, config, dstBuffer, 0);
98 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
99 dstBuffer,
100 config,
101 10,
102 2));
103
104 tex0->unref();
105 } else {
106 REPORTER_ASSERT(reporter, !canCreate);
107 }
108
109 surfDesc.fOrigin = kBottomLeft_GrSurfaceOrigin;
110 GrTexture* tex1 = gpu->createTexture(surfDesc, SkBudgeted::kNo, srcBuffer, 0);
111 if (tex1) {
112 REPORTER_ASSERT(reporter, canCreate);
113 gpu->readPixels(tex1, 0, 0, kWidth, kHeight, config, dstBuffer, 0);
114 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
115 dstBuffer,
116 config,
117 kWidth,
118 kHeight));
119
120 tex1->writePixels(5, 4, 4, 5, config, srcBuffer);
121 memset(dstBuffer, 0, kWidth*kHeight*sizeof(GrColor));
122 gpu->readPixels(tex1, 5, 4, 4, 5, config, dstBuffer, 0);
123 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
124 dstBuffer,
125 config,
126 4,
127 5));
128
129 tex1->unref();
130 } else {
131 REPORTER_ASSERT(reporter, !canCreate);
132 }
133 }
134
DEF_GPUTEST_FOR_VULKAN_CONTEXT(VkUploadPixelsTests,reporter,ctxInfo)135 DEF_GPUTEST_FOR_VULKAN_CONTEXT(VkUploadPixelsTests, reporter, ctxInfo) {
136 basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig, false, false);
137 basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig, true, false);
138 basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig, false, true);
139 basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig, true, true);
140 basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig, false, false);
141 basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig, true, false);
142 basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig, false, true);
143 basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig, true, true);
144 }
145
146 #endif
147