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bsalomone5286e02016-01-14 09:24:09 -08001/*
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#include "Test.h"
9#if SK_SUPPORT_GPU
10#include "GrContext.h"
robertphillips4fd74ae2016-08-03 14:26:53 -070011#include "GrContextPriv.h"
bsalomone5286e02016-01-14 09:24:09 -080012#include "GrDrawContext.h"
13#include "gl/GrGLGpu.h"
14#include "gl/GrGLUtil.h"
bsalomon273c0f52016-03-31 10:59:06 -070015#include "gl/GLTestContext.h"
bsalomone5286e02016-01-14 09:24:09 -080016
17static void test_read_pixels(skiatest::Reporter* reporter, GrContext* context,
18 GrTexture* rectangleTexture, uint32_t expectedPixelValues[]) {
19 int pixelCnt = rectangleTexture->width() * rectangleTexture->height();
20 SkAutoTMalloc<uint32_t> pixels(pixelCnt);
21 memset(pixels.get(), 0, sizeof(uint32_t)*pixelCnt);
22 bool read = rectangleTexture->readPixels(0, 0, rectangleTexture->width(),
23 rectangleTexture->height(), kRGBA_8888_GrPixelConfig,
24 pixels.get());
25 if (!read) {
26 ERRORF(reporter, "Error reading rectangle texture.");
27 }
28 for (int i = 0; i < pixelCnt; ++i) {
29 if (pixels.get()[i] != expectedPixelValues[i]) {
30 ERRORF(reporter, "Error, rectangle texture pixel value %d should be 0x%08x,"
31 " got 0x%08x.", i, expectedPixelValues[i], pixels.get()[i]);
32 break;
33 }
34 }
35}
36
37static void test_write_pixels(skiatest::Reporter* reporter, GrContext* context,
38 GrTexture* rectangleTexture) {
39 int pixelCnt = rectangleTexture->width() * rectangleTexture->height();
40 SkAutoTMalloc<uint32_t> pixels(pixelCnt);
41 for (int y = 0; y < rectangleTexture->width(); ++y) {
42 for (int x = 0; x < rectangleTexture->height(); ++x) {
43 pixels.get()[y * rectangleTexture->width() + x] = GrColorPackRGBA(x, y, x + y, x * y);
44 }
45 }
46 bool write = rectangleTexture->writePixels(0, 0, rectangleTexture->width(),
47 rectangleTexture->height(), kRGBA_8888_GrPixelConfig,
48 pixels.get());
49 if (!write) {
50 ERRORF(reporter, "Error writing to rectangle texture.");
51 }
52 test_read_pixels(reporter, context, rectangleTexture, pixels.get());
53}
54
55static void test_copy_surface_src(skiatest::Reporter* reporter, GrContext* context,
56 GrTexture* rectangleTexture, uint32_t expectedPixelValues[]) {
57 GrSurfaceDesc copyDstDesc;
58 copyDstDesc.fConfig = kRGBA_8888_GrPixelConfig;
59 copyDstDesc.fWidth = rectangleTexture->width();
60 copyDstDesc.fHeight = rectangleTexture->height();
61 copyDstDesc.fFlags = kRenderTarget_GrSurfaceFlag;
bsalomon5ec26ae2016-02-25 08:33:02 -080062 SkAutoTUnref<GrTexture> dst(context->textureProvider()->createTexture(
63 copyDstDesc, SkBudgeted::kYes));
bsalomone5286e02016-01-14 09:24:09 -080064 context->copySurface(dst, rectangleTexture);
65 test_read_pixels(reporter, context, dst, expectedPixelValues);
66}
67
68static void test_copy_surface_dst(skiatest::Reporter* reporter, GrContext* context,
69 GrTexture* rectangleTexture) {
70 int pixelCnt = rectangleTexture->width() * rectangleTexture->height();
71 SkAutoTMalloc<uint32_t> pixels(pixelCnt);
72 for (int y = 0; y < rectangleTexture->width(); ++y) {
73 for (int x = 0; x < rectangleTexture->height(); ++x) {
74 pixels.get()[y * rectangleTexture->width() + x] = GrColorPackRGBA(y, x, x * y, x *+ y);
75 }
76 }
77
78 GrSurfaceDesc copySrcDesc;
79 copySrcDesc.fConfig = kRGBA_8888_GrPixelConfig;
80 copySrcDesc.fWidth = rectangleTexture->width();
81 copySrcDesc.fHeight = rectangleTexture->height();
82 copySrcDesc.fFlags = kRenderTarget_GrSurfaceFlag;
bsalomon5ec26ae2016-02-25 08:33:02 -080083 SkAutoTUnref<GrTexture> src(context->textureProvider()->createTexture(
84 copySrcDesc, SkBudgeted::kYes, pixels.get(), 0));
bsalomone5286e02016-01-14 09:24:09 -080085
86 context->copySurface(rectangleTexture, src);
87 test_read_pixels(reporter, context, rectangleTexture, pixels.get());
88}
89
90static void test_clear(skiatest::Reporter* reporter, GrContext* context,
91 GrTexture* rectangleTexture) {
92 if (rectangleTexture->asRenderTarget()) {
robertphillips4fd74ae2016-08-03 14:26:53 -070093 sk_sp<GrDrawContext> dc(context->contextPriv().makeWrappedDrawContext(
94 sk_ref_sp(rectangleTexture->asRenderTarget()),
95 nullptr));
bsalomone5286e02016-01-14 09:24:09 -080096 if (!dc) {
97 ERRORF(reporter, "Could not get GrDrawContext for rectangle texture.");
98 return;
99 }
100
101 // Clear the whole thing.
102 GrColor color0 = GrColorPackRGBA(0xA, 0xB, 0xC, 0xD);
103 dc->clear(nullptr, color0, false);
104
105 int w = rectangleTexture->width();
106 int h = rectangleTexture->height();
107 int pixelCnt = w * h;
108 SkAutoTMalloc<uint32_t> expectedPixels(pixelCnt);
109
110 // The clear color is a GrColor, our readback is to kRGBA_8888, which may be different.
benjaminwagner2a641ee2016-01-15 06:21:18 -0800111 uint32_t expectedColor0 = 0;
bsalomone5286e02016-01-14 09:24:09 -0800112 uint8_t* expectedBytes0 = SkTCast<uint8_t*>(&expectedColor0);
113 expectedBytes0[0] = GrColorUnpackR(color0);
114 expectedBytes0[1] = GrColorUnpackG(color0);
115 expectedBytes0[2] = GrColorUnpackB(color0);
116 expectedBytes0[3] = GrColorUnpackA(color0);
117 for (int i = 0; i < rectangleTexture->width() * rectangleTexture->height(); ++i) {
118 expectedPixels.get()[i] = expectedColor0;
119 }
120
121 // Clear the the top to a different color.
122 GrColor color1 = GrColorPackRGBA(0x1, 0x2, 0x3, 0x4);
123 SkIRect rect = SkIRect::MakeWH(w, h/2);
124 dc->clear(&rect, color1, false);
125
benjaminwagner2a641ee2016-01-15 06:21:18 -0800126 uint32_t expectedColor1 = 0;
bsalomone5286e02016-01-14 09:24:09 -0800127 uint8_t* expectedBytes1 = SkTCast<uint8_t*>(&expectedColor1);
128 expectedBytes1[0] = GrColorUnpackR(color1);
129 expectedBytes1[1] = GrColorUnpackG(color1);
130 expectedBytes1[2] = GrColorUnpackB(color1);
131 expectedBytes1[3] = GrColorUnpackA(color1);
132
133 for (int y = 0; y < h/2; ++y) {
134 for (int x = 0; x < w; ++x) {
135 expectedPixels.get()[y * h + x] = expectedColor1;
136 }
137 }
138
139 test_read_pixels(reporter, context, rectangleTexture, expectedPixels.get());
140 }
141}
142
bsalomon758586c2016-04-06 14:02:39 -0700143DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(RectangleTexture, reporter, ctxInfo) {
bsalomon8b7451a2016-05-11 06:33:06 -0700144 GrContext* context = ctxInfo.grContext();
145 sk_gpu_test::GLTestContext* glContext = ctxInfo.glContext();
bsalomone5286e02016-01-14 09:24:09 -0800146 static const int kWidth = 13;
147 static const int kHeight = 13;
148
149 GrColor pixels[kWidth * kHeight];
150 for (int y = 0; y < kHeight; ++y) {
151 for (int x = 0; x < kWidth; ++x) {
152 pixels[y * kWidth + x] = y * kWidth + x;
153 }
154 }
155
156 for (int origin = 0; origin < 2; ++origin) {
157 GrGLuint rectTexID = glContext->createTextureRectangle(kWidth, kHeight, GR_GL_RGBA,
158 GR_GL_RGBA, GR_GL_UNSIGNED_BYTE,
159 pixels);
160
161 if (!rectTexID) {
162 return;
163 }
164
165 // Let GrContext know that we messed with the GL context directly.
166 context->resetContext();
167
168 // Wrap the rectangle texture ID in a GrTexture
169 GrGLTextureInfo rectangleInfo;
170 rectangleInfo.fID = rectTexID;
171 rectangleInfo.fTarget = GR_GL_TEXTURE_RECTANGLE;
172
173 GrBackendTextureDesc rectangleDesc;
174 rectangleDesc.fFlags = kRenderTarget_GrBackendTextureFlag;
175 rectangleDesc.fConfig = kRGBA_8888_GrPixelConfig;
176 rectangleDesc.fWidth = kWidth;
177 rectangleDesc.fHeight = kHeight;
178 rectangleDesc.fOrigin = origin ? kBottomLeft_GrSurfaceOrigin : kTopLeft_GrSurfaceOrigin;
179 rectangleDesc.fTextureHandle = reinterpret_cast<GrBackendObject>(&rectangleInfo);
180
181 GrColor refPixels[kWidth * kHeight];
182 bool flipRef = rectangleDesc.fOrigin == kBottomLeft_GrSurfaceOrigin;
183 for (int y = 0; y < kHeight; ++y) {
184 for (int x = 0; x < kWidth; ++x) {
185 int y0 = flipRef ? kHeight - y - 1 : y;
186 refPixels[y * kWidth + x] = pixels[y0 * kWidth + x];
187 }
188 }
189
190 SkAutoTUnref<GrTexture> rectangleTexture(
191 context->textureProvider()->wrapBackendTexture(rectangleDesc));
192 if (!rectangleTexture) {
193 ERRORF(reporter, "Error wrapping rectangle texture in GrTexture.");
194 GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
195 continue;
196 }
197
198 test_read_pixels(reporter, context, rectangleTexture, refPixels);
199
200 test_copy_surface_src(reporter, context, rectangleTexture, refPixels);
201
202 test_copy_surface_dst(reporter, context, rectangleTexture);
203
204 test_write_pixels(reporter, context, rectangleTexture);
205
206 test_clear(reporter, context, rectangleTexture);
207
208 GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
209 }
210}
211
212#endif