1 /*
2 * Copyright 2016 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 <initializer_list>
9 #include "Test.h"
10
11 #if SK_SUPPORT_GPU
12 #include "GrContext.h"
13 #include "GrContextPriv.h"
14 #include "GrResourceProvider.h"
15 #include "GrSurfaceContext.h"
16 #include "GrSurfaceProxy.h"
17 #include "GrTextureProxy.h"
18
19 #include "SkUtils.h"
20
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(CopySurface,reporter,ctxInfo)21 DEF_GPUTEST_FOR_RENDERING_CONTEXTS(CopySurface, reporter, ctxInfo) {
22 GrContext* context = ctxInfo.grContext();
23 static const int kW = 10;
24 static const int kH = 10;
25 static const size_t kRowBytes = sizeof(uint32_t) * kW;
26
27 GrSurfaceDesc baseDesc;
28 baseDesc.fConfig = kRGBA_8888_GrPixelConfig;
29 baseDesc.fWidth = kW;
30 baseDesc.fHeight = kH;
31
32 SkAutoTMalloc<uint32_t> srcPixels(kW * kH);
33 for (int i = 0; i < kW * kH; ++i) {
34 srcPixels.get()[i] = i;
35 }
36
37 SkAutoTMalloc<uint32_t> dstPixels(kW * kH);
38 for (int i = 0; i < kW * kH; ++i) {
39 dstPixels.get()[i] = ~i;
40 }
41
42 static const SkIRect kSrcRects[] {
43 { 0, 0, kW , kH },
44 {-1, -1, kW+1, kH+1},
45 { 1, 1, kW-1, kH-1},
46 { 5, 5, 6 , 6 },
47 };
48
49 static const SkIPoint kDstPoints[] {
50 { 0 , 0 },
51 { 1 , 1 },
52 { kW/2, kH/4},
53 { kW-1, kH-1},
54 { kW , kH },
55 { kW+1, kH+2},
56 {-1 , -1 },
57 };
58
59 const SkImageInfo ii = SkImageInfo::Make(kW, kH, kRGBA_8888_SkColorType, kPremul_SkAlphaType);
60
61 SkAutoTMalloc<uint32_t> read(kW * kH);
62
63 for (auto sOrigin : {kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin}) {
64 for (auto dOrigin : {kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin}) {
65 for (auto sFlags: {kRenderTarget_GrSurfaceFlag, kNone_GrSurfaceFlags}) {
66 for (auto dFlags: {kRenderTarget_GrSurfaceFlag, kNone_GrSurfaceFlags}) {
67 for (auto srcRect : kSrcRects) {
68 for (auto dstPoint : kDstPoints) {
69 GrSurfaceDesc srcDesc = baseDesc;
70 srcDesc.fOrigin = sOrigin;
71 srcDesc.fFlags = sFlags;
72 GrSurfaceDesc dstDesc = baseDesc;
73 dstDesc.fOrigin = dOrigin;
74 dstDesc.fFlags = dFlags;
75
76 sk_sp<GrTextureProxy> src(GrSurfaceProxy::MakeDeferred(
77 context->resourceProvider(),
78 srcDesc, SkBudgeted::kNo,
79 srcPixels.get(),
80 kRowBytes));
81
82 sk_sp<GrTextureProxy> dst(GrSurfaceProxy::MakeDeferred(
83 context->resourceProvider(),
84 dstDesc, SkBudgeted::kNo,
85 dstPixels.get(),
86 kRowBytes));
87 if (!src || !dst) {
88 ERRORF(reporter,
89 "Could not create surfaces for copy surface test.");
90 continue;
91 }
92
93 sk_sp<GrSurfaceContext> dstContext =
94 context->contextPriv().makeWrappedSurfaceContext(std::move(dst),
95 nullptr);
96
97 bool result = dstContext->copy(src.get(), srcRect, dstPoint);
98
99 bool expectedResult = true;
100 SkIPoint dstOffset = { dstPoint.fX - srcRect.fLeft,
101 dstPoint.fY - srcRect.fTop };
102 SkIRect copiedDstRect = SkIRect::MakeXYWH(dstPoint.fX,
103 dstPoint.fY,
104 srcRect.width(),
105 srcRect.height());
106
107 SkIRect copiedSrcRect;
108 if (!copiedSrcRect.intersect(srcRect, SkIRect::MakeWH(kW, kH))) {
109 expectedResult = false;
110 } else {
111 // If the src rect was clipped, apply same clipping to each side of
112 // copied dst rect.
113 copiedDstRect.fLeft += copiedSrcRect.fLeft - srcRect.fLeft;
114 copiedDstRect.fTop += copiedSrcRect.fTop - srcRect.fTop;
115 copiedDstRect.fRight -= copiedSrcRect.fRight - srcRect.fRight;
116 copiedDstRect.fBottom -= copiedSrcRect.fBottom - srcRect.fBottom;
117 }
118 if (copiedDstRect.isEmpty() ||
119 !copiedDstRect.intersect(SkIRect::MakeWH(kW, kH))) {
120 expectedResult = false;
121 }
122 // To make the copied src rect correct we would apply any dst clipping
123 // back to the src rect, but we don't use it again so don't bother.
124 if (expectedResult != result) {
125 ERRORF(reporter, "Expected return value %d from copySurface, got "
126 "%d.", expectedResult, result);
127 continue;
128 }
129
130 if (!expectedResult || !result) {
131 continue;
132 }
133
134 sk_memset32(read.get(), 0, kW * kH);
135 if (!dstContext->readPixels(ii, read.get(), kRowBytes, 0, 0)) {
136 ERRORF(reporter, "Error calling readPixels");
137 continue;
138 }
139
140 bool abort = false;
141 // Validate that pixels inside copiedDstRect received the correct value
142 // from src and that those outside were not modified.
143 for (int y = 0; y < kH && !abort; ++y) {
144 for (int x = 0; x < kW; ++x) {
145 uint32_t r = read.get()[y * kW + x];
146 if (copiedDstRect.contains(x, y)) {
147 int sx = x - dstOffset.fX;
148 int sy = y - dstOffset.fY;
149 uint32_t s = srcPixels.get()[sy * kW + sx];
150 if (s != r) {
151 ERRORF(reporter, "Expected dst %d,%d to contain "
152 "0x%08x copied from src location %d,%d. Got "
153 "0x%08x", x, y, s, sx, sy, r);
154 abort = true;
155 break;
156 }
157 } else {
158 uint32_t d = dstPixels.get()[y * kW + x];
159 if (d != r) {
160 ERRORF(reporter, "Expected dst %d,%d to be unmodified ("
161 "0x%08x). Got 0x%08x", x, y, d, r);
162 abort = true;
163 break;
164 }
165 }
166 }
167 }
168 }
169 }
170 }
171 }
172 }
173 }
174 }
175 #endif
176