1
2 /*
3 * Copyright 2015 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8
9 // This is a GPU-backend specific test. It relies on static intializers to work
10
11 #include "SkTypes.h"
12
13 #if SK_SUPPORT_GPU && SK_ALLOW_STATIC_GLOBAL_INITIALIZERS && defined(SK_VULKAN)
14
15 #include "GrContextFactory.h"
16 #include "GrTest.h"
17 #include "Test.h"
18 #include "vk/GrVkGpu.h"
19
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 gpu->discard(NULL);
56
57 const int kWidth = 16;
58 const int kHeight = 16;
59 SkAutoTMalloc<GrColor> srcBuffer(kWidth*kHeight);
60 SkAutoTMalloc<GrColor> dstBuffer(kWidth*kHeight);
61
62 fill_pixel_data(kWidth, kHeight, srcBuffer.get());
63
64 const GrVkCaps* caps = reinterpret_cast<const GrVkCaps*>(context->caps());
65
66 bool canCreate = true;
67 // the expectation is that the given config is texturable/renderable with optimal tiling
68 // but may not be with linear tiling
69 if (linearTiling) {
70 if (!caps->isConfigTexurableLinearly(config) ||
71 (renderTarget && !caps->isConfigRenderableLinearly(config, false))) {
72 canCreate = false;
73 }
74 }
75
76 GrSurfaceDesc surfDesc;
77 surfDesc.fFlags = renderTarget ? kRenderTarget_GrSurfaceFlag : kNone_GrSurfaceFlags;
78 if (linearTiling) {
79 surfDesc.fFlags |= kZeroCopy_GrSurfaceFlag;
80 }
81 surfDesc.fOrigin = kTopLeft_GrSurfaceOrigin;
82 surfDesc.fWidth = kWidth;
83 surfDesc.fHeight = kHeight;
84 surfDesc.fConfig = config;
85 surfDesc.fSampleCnt = 0;
86 GrTexture* tex0 = gpu->createTexture(surfDesc, SkBudgeted::kNo, srcBuffer, 0);
87 if (tex0) {
88 REPORTER_ASSERT(reporter, canCreate);
89 gpu->readPixels(tex0, 0, 0, kWidth, kHeight, config, dstBuffer, 0);
90 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
91 dstBuffer,
92 config,
93 kWidth,
94 kHeight));
95
96 tex0->writePixels(2, 10, 10, 2, config, srcBuffer);
97 memset(dstBuffer, 0, kWidth*kHeight*sizeof(GrColor));
98 gpu->readPixels(tex0, 2, 10, 10, 2, config, dstBuffer, 0);
99 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
100 dstBuffer,
101 config,
102 10,
103 2));
104
105 tex0->unref();
106 } else {
107 REPORTER_ASSERT(reporter, !canCreate);
108 }
109
110 surfDesc.fOrigin = kBottomLeft_GrSurfaceOrigin;
111 GrTexture* tex1 = gpu->createTexture(surfDesc, SkBudgeted::kNo, srcBuffer, 0);
112 if (tex1) {
113 REPORTER_ASSERT(reporter, canCreate);
114 gpu->readPixels(tex1, 0, 0, kWidth, kHeight, config, dstBuffer, 0);
115 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
116 dstBuffer,
117 config,
118 kWidth,
119 kHeight));
120
121 tex1->writePixels(5, 4, 4, 5, config, srcBuffer);
122 memset(dstBuffer, 0, kWidth*kHeight*sizeof(GrColor));
123 gpu->readPixels(tex1, 5, 4, 4, 5, config, dstBuffer, 0);
124 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
125 dstBuffer,
126 config,
127 4,
128 5));
129
130 tex1->unref();
131 } else {
132 REPORTER_ASSERT(reporter, !canCreate);
133 }
134 }
135
DEF_GPUTEST(VkUploadPixelsTests,reporter,factory)136 DEF_GPUTEST(VkUploadPixelsTests, reporter, factory) {
137 GrContextOptions opts;
138 opts.fSuppressPrints = true;
139 GrContextFactory debugFactory(opts);
140 for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) {
141 if (static_cast<GrContextFactory::GLContextType>(type) !=
142 GrContextFactory::kNative_GLContextType) {
143 continue;
144 }
145 GrContext* context = debugFactory.get(static_cast<GrContextFactory::GLContextType>(type));
146 if (context) {
147 basic_texture_test(reporter, context, kRGBA_8888_GrPixelConfig, false, false);
148 basic_texture_test(reporter, context, kRGBA_8888_GrPixelConfig, true, false);
149 basic_texture_test(reporter, context, kRGBA_8888_GrPixelConfig, false, true);
150 basic_texture_test(reporter, context, kRGBA_8888_GrPixelConfig, true, true);
151 basic_texture_test(reporter, context, kBGRA_8888_GrPixelConfig, false, false);
152 basic_texture_test(reporter, context, kBGRA_8888_GrPixelConfig, true, false);
153 basic_texture_test(reporter, context, kBGRA_8888_GrPixelConfig, false, true);
154 basic_texture_test(reporter, context, kBGRA_8888_GrPixelConfig, true, true);
155 }
156
157 }
158 }
159
160 #endif
161