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 && defined(SK_VULKAN)
13
14 #include "GrContextFactory.h"
15 #include "GrContextPriv.h"
16 #include "GrProxyProvider.h"
17 #include "GrSurfaceProxy.h"
18 #include "GrTest.h"
19 #include "SkGr.h"
20 #include "Test.h"
21 #include "vk/GrVkGpu.h"
22
23 using sk_gpu_test::GrContextFactory;
24
fill_pixel_data(int width,int height,GrColor * data)25 void fill_pixel_data(int width, int height, GrColor* data) {
26
27 // build red-green gradient
28 for (int j = 0; j < height; ++j) {
29 for (int i = 0; i < width; ++i) {
30 unsigned int red = (unsigned int)(256.f*(i / (float)width));
31 unsigned int green = (unsigned int)(256.f*(j / (float)height));
32 data[i + j*width] = GrColorPackRGBA(red - (red>>8), green - (green>>8), 0xff, 0xff);
33 }
34 }
35 }
36
does_full_buffer_contain_correct_color(GrColor * srcBuffer,GrColor * dstBuffer,int width,int height)37 bool does_full_buffer_contain_correct_color(GrColor* srcBuffer,
38 GrColor* dstBuffer,
39 int width,
40 int height) {
41 GrColor* srcPtr = srcBuffer;
42 GrColor* dstPtr = dstBuffer;
43 for (int j = 0; j < height; ++j) {
44 for (int i = 0; i < width; ++i) {
45 if (srcPtr[i] != dstPtr[i]) {
46 return false;
47 }
48 }
49 srcPtr += width;
50 dstPtr += width;
51 }
52 return true;
53 }
54
basic_texture_test(skiatest::Reporter * reporter,GrContext * context,GrPixelConfig config,bool renderTarget)55 void basic_texture_test(skiatest::Reporter* reporter, GrContext* context, GrPixelConfig config,
56 bool renderTarget) {
57 GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider();
58
59 const int kWidth = 16;
60 const int kHeight = 16;
61 SkAutoTMalloc<GrColor> srcBuffer(kWidth*kHeight);
62 SkAutoTMalloc<GrColor> dstBuffer(kWidth*kHeight);
63
64 fill_pixel_data(kWidth, kHeight, srcBuffer.get());
65
66 GrSurfaceDesc surfDesc;
67 surfDesc.fFlags = renderTarget ? kRenderTarget_GrSurfaceFlag : kNone_GrSurfaceFlags;
68 surfDesc.fOrigin = kTopLeft_GrSurfaceOrigin;
69 surfDesc.fWidth = kWidth;
70 surfDesc.fHeight = kHeight;
71 surfDesc.fConfig = config;
72 surfDesc.fSampleCnt = 1;
73
74 SkColorType ct;
75 SkAssertResult(GrPixelConfigToColorType(config, &ct));
76
77 sk_sp<GrTextureProxy> proxy = proxyProvider->createTextureProxy(surfDesc, SkBudgeted::kNo,
78 srcBuffer, 0);
79 REPORTER_ASSERT(reporter, proxy);
80 if (proxy) {
81 sk_sp<GrSurfaceContext> sContext = context->contextPriv().makeWrappedSurfaceContext(proxy);
82
83 SkImageInfo dstInfo = SkImageInfo::Make(kWidth, kHeight, ct, kOpaque_SkAlphaType);
84
85 bool result = sContext->readPixels(dstInfo, dstBuffer, 0, 0, 0);
86 REPORTER_ASSERT(reporter, result);
87 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
88 dstBuffer,
89 kWidth,
90 kHeight));
91
92 dstInfo = SkImageInfo::Make(10, 2, ct, kOpaque_SkAlphaType);
93 result = sContext->writePixels(dstInfo, srcBuffer, 0, 2, 10);
94 REPORTER_ASSERT(reporter, result);
95
96 memset(dstBuffer, 0, kWidth*kHeight*sizeof(GrColor));
97
98 result = sContext->readPixels(dstInfo, dstBuffer, 0, 2, 10);
99 REPORTER_ASSERT(reporter, result);
100
101 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
102 dstBuffer,
103 10,
104 2));
105 }
106
107 surfDesc.fOrigin = kBottomLeft_GrSurfaceOrigin;
108
109 proxy = proxyProvider->createTextureProxy(surfDesc, SkBudgeted::kNo, srcBuffer, 0);
110 REPORTER_ASSERT(reporter, proxy);
111 if (proxy) {
112 sk_sp<GrSurfaceContext> sContext = context->contextPriv().makeWrappedSurfaceContext(proxy);
113
114 SkImageInfo dstInfo = SkImageInfo::Make(kWidth, kHeight, ct, kOpaque_SkAlphaType);
115
116 bool result = sContext->readPixels(dstInfo, dstBuffer, 0, 0, 0);
117 REPORTER_ASSERT(reporter, result);
118 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
119 dstBuffer,
120 kWidth,
121 kHeight));
122
123 dstInfo = SkImageInfo::Make(4, 5, ct, kOpaque_SkAlphaType);
124 result = sContext->writePixels(dstInfo, srcBuffer, 0, 5, 4);
125 REPORTER_ASSERT(reporter, result);
126
127 memset(dstBuffer, 0, kWidth*kHeight*sizeof(GrColor));
128
129 result = sContext->readPixels(dstInfo, dstBuffer, 0, 5, 4);
130 REPORTER_ASSERT(reporter, result);
131
132 REPORTER_ASSERT(reporter, does_full_buffer_contain_correct_color(srcBuffer,
133 dstBuffer,
134 4,
135 5));
136
137 }
138 }
139
DEF_GPUTEST_FOR_VULKAN_CONTEXT(VkUploadPixelsTests,reporter,ctxInfo)140 DEF_GPUTEST_FOR_VULKAN_CONTEXT(VkUploadPixelsTests, reporter, ctxInfo) {
141 // RGBA
142 basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig, false);
143 basic_texture_test(reporter, ctxInfo.grContext(), kRGBA_8888_GrPixelConfig, true);
144
145 // BGRA
146 basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig, false);
147 basic_texture_test(reporter, ctxInfo.grContext(), kBGRA_8888_GrPixelConfig, true);
148 }
149
150 #endif
151