1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
|
/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Test.h"
#if SK_SUPPORT_GPU
#include "GrContext.h"
#include "GrDrawContext.h"
#include "gl/GrGLGpu.h"
#include "gl/GrGLUtil.h"
#include "gl/GLTestContext.h"
static void test_read_pixels(skiatest::Reporter* reporter, GrContext* context,
GrTexture* rectangleTexture, uint32_t expectedPixelValues[]) {
int pixelCnt = rectangleTexture->width() * rectangleTexture->height();
SkAutoTMalloc<uint32_t> pixels(pixelCnt);
memset(pixels.get(), 0, sizeof(uint32_t)*pixelCnt);
bool read = rectangleTexture->readPixels(0, 0, rectangleTexture->width(),
rectangleTexture->height(), kRGBA_8888_GrPixelConfig,
pixels.get());
if (!read) {
ERRORF(reporter, "Error reading rectangle texture.");
}
for (int i = 0; i < pixelCnt; ++i) {
if (pixels.get()[i] != expectedPixelValues[i]) {
ERRORF(reporter, "Error, rectangle texture pixel value %d should be 0x%08x,"
" got 0x%08x.", i, expectedPixelValues[i], pixels.get()[i]);
break;
}
}
}
static void test_write_pixels(skiatest::Reporter* reporter, GrContext* context,
GrTexture* rectangleTexture) {
int pixelCnt = rectangleTexture->width() * rectangleTexture->height();
SkAutoTMalloc<uint32_t> pixels(pixelCnt);
for (int y = 0; y < rectangleTexture->width(); ++y) {
for (int x = 0; x < rectangleTexture->height(); ++x) {
pixels.get()[y * rectangleTexture->width() + x] = GrColorPackRGBA(x, y, x + y, x * y);
}
}
bool write = rectangleTexture->writePixels(0, 0, rectangleTexture->width(),
rectangleTexture->height(), kRGBA_8888_GrPixelConfig,
pixels.get());
if (!write) {
ERRORF(reporter, "Error writing to rectangle texture.");
}
test_read_pixels(reporter, context, rectangleTexture, pixels.get());
}
static void test_copy_surface_src(skiatest::Reporter* reporter, GrContext* context,
GrTexture* rectangleTexture, uint32_t expectedPixelValues[]) {
GrSurfaceDesc copyDstDesc;
copyDstDesc.fConfig = kRGBA_8888_GrPixelConfig;
copyDstDesc.fWidth = rectangleTexture->width();
copyDstDesc.fHeight = rectangleTexture->height();
copyDstDesc.fFlags = kRenderTarget_GrSurfaceFlag;
SkAutoTUnref<GrTexture> dst(context->textureProvider()->createTexture(
copyDstDesc, SkBudgeted::kYes));
context->copySurface(dst, rectangleTexture);
test_read_pixels(reporter, context, dst, expectedPixelValues);
}
static void test_copy_surface_dst(skiatest::Reporter* reporter, GrContext* context,
GrTexture* rectangleTexture) {
int pixelCnt = rectangleTexture->width() * rectangleTexture->height();
SkAutoTMalloc<uint32_t> pixels(pixelCnt);
for (int y = 0; y < rectangleTexture->width(); ++y) {
for (int x = 0; x < rectangleTexture->height(); ++x) {
pixels.get()[y * rectangleTexture->width() + x] = GrColorPackRGBA(y, x, x * y, x *+ y);
}
}
GrSurfaceDesc copySrcDesc;
copySrcDesc.fConfig = kRGBA_8888_GrPixelConfig;
copySrcDesc.fWidth = rectangleTexture->width();
copySrcDesc.fHeight = rectangleTexture->height();
copySrcDesc.fFlags = kRenderTarget_GrSurfaceFlag;
SkAutoTUnref<GrTexture> src(context->textureProvider()->createTexture(
copySrcDesc, SkBudgeted::kYes, pixels.get(), 0));
context->copySurface(rectangleTexture, src);
test_read_pixels(reporter, context, rectangleTexture, pixels.get());
}
static void test_clear(skiatest::Reporter* reporter, GrContext* context,
GrTexture* rectangleTexture) {
if (rectangleTexture->asRenderTarget()) {
SkAutoTUnref<GrDrawContext> dc(context->drawContext(rectangleTexture->asRenderTarget()));
if (!dc) {
ERRORF(reporter, "Could not get GrDrawContext for rectangle texture.");
return;
}
// Clear the whole thing.
GrColor color0 = GrColorPackRGBA(0xA, 0xB, 0xC, 0xD);
dc->clear(nullptr, color0, false);
int w = rectangleTexture->width();
int h = rectangleTexture->height();
int pixelCnt = w * h;
SkAutoTMalloc<uint32_t> expectedPixels(pixelCnt);
// The clear color is a GrColor, our readback is to kRGBA_8888, which may be different.
uint32_t expectedColor0 = 0;
uint8_t* expectedBytes0 = SkTCast<uint8_t*>(&expectedColor0);
expectedBytes0[0] = GrColorUnpackR(color0);
expectedBytes0[1] = GrColorUnpackG(color0);
expectedBytes0[2] = GrColorUnpackB(color0);
expectedBytes0[3] = GrColorUnpackA(color0);
for (int i = 0; i < rectangleTexture->width() * rectangleTexture->height(); ++i) {
expectedPixels.get()[i] = expectedColor0;
}
// Clear the the top to a different color.
GrColor color1 = GrColorPackRGBA(0x1, 0x2, 0x3, 0x4);
SkIRect rect = SkIRect::MakeWH(w, h/2);
dc->clear(&rect, color1, false);
uint32_t expectedColor1 = 0;
uint8_t* expectedBytes1 = SkTCast<uint8_t*>(&expectedColor1);
expectedBytes1[0] = GrColorUnpackR(color1);
expectedBytes1[1] = GrColorUnpackG(color1);
expectedBytes1[2] = GrColorUnpackB(color1);
expectedBytes1[3] = GrColorUnpackA(color1);
for (int y = 0; y < h/2; ++y) {
for (int x = 0; x < w; ++x) {
expectedPixels.get()[y * h + x] = expectedColor1;
}
}
test_read_pixels(reporter, context, rectangleTexture, expectedPixels.get());
}
}
DEF_GPUTEST_FOR_RENDERING_CONTEXTS(RectangleTexture, reporter, context, glContext) {
static const int kWidth = 13;
static const int kHeight = 13;
GrColor pixels[kWidth * kHeight];
for (int y = 0; y < kHeight; ++y) {
for (int x = 0; x < kWidth; ++x) {
pixels[y * kWidth + x] = y * kWidth + x;
}
}
for (int origin = 0; origin < 2; ++origin) {
GrGLuint rectTexID = glContext->createTextureRectangle(kWidth, kHeight, GR_GL_RGBA,
GR_GL_RGBA, GR_GL_UNSIGNED_BYTE,
pixels);
if (!rectTexID) {
return;
}
// Let GrContext know that we messed with the GL context directly.
context->resetContext();
// Wrap the rectangle texture ID in a GrTexture
GrGLTextureInfo rectangleInfo;
rectangleInfo.fID = rectTexID;
rectangleInfo.fTarget = GR_GL_TEXTURE_RECTANGLE;
GrBackendTextureDesc rectangleDesc;
rectangleDesc.fFlags = kRenderTarget_GrBackendTextureFlag;
rectangleDesc.fConfig = kRGBA_8888_GrPixelConfig;
rectangleDesc.fWidth = kWidth;
rectangleDesc.fHeight = kHeight;
rectangleDesc.fOrigin = origin ? kBottomLeft_GrSurfaceOrigin : kTopLeft_GrSurfaceOrigin;
rectangleDesc.fTextureHandle = reinterpret_cast<GrBackendObject>(&rectangleInfo);
GrColor refPixels[kWidth * kHeight];
bool flipRef = rectangleDesc.fOrigin == kBottomLeft_GrSurfaceOrigin;
for (int y = 0; y < kHeight; ++y) {
for (int x = 0; x < kWidth; ++x) {
int y0 = flipRef ? kHeight - y - 1 : y;
refPixels[y * kWidth + x] = pixels[y0 * kWidth + x];
}
}
SkAutoTUnref<GrTexture> rectangleTexture(
context->textureProvider()->wrapBackendTexture(rectangleDesc));
if (!rectangleTexture) {
ERRORF(reporter, "Error wrapping rectangle texture in GrTexture.");
GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
continue;
}
test_read_pixels(reporter, context, rectangleTexture, refPixels);
test_copy_surface_src(reporter, context, rectangleTexture, refPixels);
test_copy_surface_dst(reporter, context, rectangleTexture);
test_write_pixels(reporter, context, rectangleTexture);
test_clear(reporter, context, rectangleTexture);
GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
}
}
#endif
|
