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 #include "tests/Test.h"
9 #include "tests/TestUtils.h"
10
11 #include "include/gpu/GrContext.h"
12 #include "src/gpu/GrClip.h"
13 #include "src/gpu/GrContextPriv.h"
14 #include "src/gpu/GrProxyProvider.h"
15 #include "src/gpu/GrRenderTargetContext.h"
16 #include "src/gpu/GrSurfaceContextPriv.h"
17 #include "src/gpu/GrSurfacePriv.h"
18 #include "src/gpu/GrTexturePriv.h"
19 #include "src/gpu/SkGr.h"
20 #include "src/gpu/gl/GrGLGpu.h"
21 #include "src/gpu/gl/GrGLUtil.h"
22 #include "tools/gpu/ProxyUtils.h"
23 #include "tools/gpu/gl/GLTestContext.h"
24
25 // skbug.com/5932
test_basic_draw_as_src(skiatest::Reporter * reporter,GrContext * context,sk_sp<GrTextureProxy> rectProxy,GrColorType colorType,uint32_t expectedPixelValues[])26 static void test_basic_draw_as_src(skiatest::Reporter* reporter, GrContext* context,
27 sk_sp<GrTextureProxy> rectProxy, GrColorType colorType,
28 uint32_t expectedPixelValues[]) {
29 sk_sp<GrRenderTargetContext> rtContext(context->priv().makeDeferredRenderTargetContext(
30 SkBackingFit::kExact, rectProxy->width(), rectProxy->height(), colorType, nullptr));
31 for (auto filter : {GrSamplerState::Filter::kNearest,
32 GrSamplerState::Filter::kBilerp,
33 GrSamplerState::Filter::kMipMap}) {
34 rtContext->clear(nullptr, SkPMColor4f::FromBytes_RGBA(0xDDCCBBAA),
35 GrRenderTargetContext::CanClearFullscreen::kYes);
36 auto fp = GrSimpleTextureEffect::Make(rectProxy, SkMatrix::I(), filter);
37 GrPaint paint;
38 paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
39 paint.addColorFragmentProcessor(std::move(fp));
40 rtContext->drawPaint(GrNoClip(), std::move(paint), SkMatrix::I());
41 test_read_pixels(reporter, rtContext.get(), expectedPixelValues,
42 "RectangleTexture-basic-draw");
43 }
44 }
45
test_clear(skiatest::Reporter * reporter,GrSurfaceContext * rectContext)46 static void test_clear(skiatest::Reporter* reporter, GrSurfaceContext* rectContext) {
47 if (GrRenderTargetContext* rtc = rectContext->asRenderTargetContext()) {
48 // Clear the whole thing.
49 GrColor color0 = GrColorPackRGBA(0xA, 0xB, 0xC, 0xD);
50 rtc->clear(nullptr, SkPMColor4f::FromBytes_RGBA(color0),
51 GrRenderTargetContext::CanClearFullscreen::kNo);
52
53 int w = rtc->width();
54 int h = rtc->height();
55 int pixelCnt = w * h;
56 SkAutoTMalloc<uint32_t> expectedPixels(pixelCnt);
57
58 // The clear color is a GrColor, our readback is to kRGBA_8888, which may be different.
59 uint32_t expectedColor0 = 0;
60 uint8_t* expectedBytes0 = reinterpret_cast<uint8_t*>(&expectedColor0);
61 expectedBytes0[0] = GrColorUnpackR(color0);
62 expectedBytes0[1] = GrColorUnpackG(color0);
63 expectedBytes0[2] = GrColorUnpackB(color0);
64 expectedBytes0[3] = GrColorUnpackA(color0);
65 for (int i = 0; i < rtc->width() * rtc->height(); ++i) {
66 expectedPixels.get()[i] = expectedColor0;
67 }
68
69 // Clear the the top to a different color.
70 GrColor color1 = GrColorPackRGBA(0x1, 0x2, 0x3, 0x4);
71 SkIRect rect = SkIRect::MakeWH(w, h/2);
72 rtc->clear(&rect, SkPMColor4f::FromBytes_RGBA(color1),
73 GrRenderTargetContext::CanClearFullscreen::kNo);
74
75 uint32_t expectedColor1 = 0;
76 uint8_t* expectedBytes1 = reinterpret_cast<uint8_t*>(&expectedColor1);
77 expectedBytes1[0] = GrColorUnpackR(color1);
78 expectedBytes1[1] = GrColorUnpackG(color1);
79 expectedBytes1[2] = GrColorUnpackB(color1);
80 expectedBytes1[3] = GrColorUnpackA(color1);
81
82 for (int y = 0; y < h/2; ++y) {
83 for (int x = 0; x < w; ++x) {
84 expectedPixels.get()[y * h + x] = expectedColor1;
85 }
86 }
87
88 test_read_pixels(reporter, rtc, expectedPixels.get(), "RectangleTexture-clear");
89 }
90 }
91
test_copy_to_surface(skiatest::Reporter * reporter,GrContext * context,GrSurfaceContext * dstContext,const char * testName)92 static void test_copy_to_surface(skiatest::Reporter* reporter,
93 GrContext* context,
94 GrSurfaceContext* dstContext,
95 const char* testName) {
96
97 int pixelCnt = dstContext->width() * dstContext->height();
98 SkAutoTMalloc<uint32_t> pixels(pixelCnt);
99 for (int y = 0; y < dstContext->width(); ++y) {
100 for (int x = 0; x < dstContext->height(); ++x) {
101 pixels.get()[y * dstContext->width() + x] =
102 SkColorToPremulGrColor(SkColorSetARGB(2*y, y, x, x * y));
103 }
104 }
105
106 for (auto renderable : {GrRenderable::kNo, GrRenderable::kYes}) {
107 auto origin = dstContext->asSurfaceProxy()->origin();
108 auto src = sk_gpu_test::MakeTextureProxyFromData(
109 context, renderable, dstContext->width(), dstContext->height(),
110 kRGBA_8888_SkColorType, kPremul_SkAlphaType, origin, pixels.get(), 0);
111 // If this assert ever fails we can add a fallback to do copy as draw, but until then we can
112 // be more restrictive.
113 SkAssertResult(dstContext->testCopy(src.get()));
114 test_read_pixels(reporter, dstContext, pixels.get(), testName);
115 }
116 }
117
DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(RectangleTexture,reporter,ctxInfo)118 DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(RectangleTexture, reporter, ctxInfo) {
119 GrContext* context = ctxInfo.grContext();
120 GrProxyProvider* proxyProvider = context->priv().proxyProvider();
121 sk_gpu_test::GLTestContext* glContext = ctxInfo.glContext();
122 static const int kWidth = 16;
123 static const int kHeight = 16;
124
125 GrColor pixels[kWidth * kHeight];
126 for (int y = 0; y < kHeight; ++y) {
127 for (int x = 0; x < kWidth; ++x) {
128 pixels[y * kWidth + x] = y * kWidth + x;
129 }
130 }
131
132 for (auto origin : { kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin }) {
133 bool useBLOrigin = kBottomLeft_GrSurfaceOrigin == origin;
134
135 GrGLuint rectTexID = glContext->createTextureRectangle(kWidth, kHeight, GR_GL_RGBA,
136 GR_GL_RGBA, GR_GL_UNSIGNED_BYTE,
137 pixels);
138
139 if (!rectTexID) {
140 return;
141 }
142
143 // Let GrContext know that we messed with the GL context directly.
144 context->resetContext();
145
146 // Wrap the rectangle texture ID in a GrTexture
147 GrGLTextureInfo rectangleInfo;
148 rectangleInfo.fID = rectTexID;
149 rectangleInfo.fTarget = GR_GL_TEXTURE_RECTANGLE;
150 rectangleInfo.fFormat = GR_GL_RGBA8;
151
152 GrBackendTexture rectangleTex(kWidth, kHeight, GrMipMapped::kNo, rectangleInfo);
153
154 GrColor refPixels[kWidth * kHeight];
155 for (int y = 0; y < kHeight; ++y) {
156 for (int x = 0; x < kWidth; ++x) {
157 int y0 = useBLOrigin ? kHeight - y - 1 : y;
158 refPixels[y * kWidth + x] = pixels[y0 * kWidth + x];
159 }
160 }
161
162 sk_sp<GrTextureProxy> rectProxy = proxyProvider->wrapBackendTexture(
163 rectangleTex, GrColorType::kRGBA_8888, origin,
164 kBorrow_GrWrapOwnership, GrWrapCacheable::kNo, kRW_GrIOType);
165
166 if (!rectProxy) {
167 ERRORF(reporter, "Error creating proxy for rectangle texture.");
168 GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
169 continue;
170 }
171
172 SkASSERT(rectProxy->mipMapped() == GrMipMapped::kNo);
173 SkASSERT(rectProxy->peekTexture()->texturePriv().mipMapped() == GrMipMapped::kNo);
174
175 SkASSERT(rectProxy->textureType() == GrTextureType::kRectangle);
176 SkASSERT(rectProxy->peekTexture()->texturePriv().textureType() ==
177 GrTextureType::kRectangle);
178 SkASSERT(rectProxy->hasRestrictedSampling());
179 SkASSERT(rectProxy->peekTexture()->texturePriv().hasRestrictedSampling());
180
181 test_basic_draw_as_src(reporter, context, rectProxy, GrColorType::kRGBA_8888, refPixels);
182
183 // Test copy to both a texture and RT
184 test_copy_from_surface(reporter, context, rectProxy.get(), GrColorType::kRGBA_8888,
185 refPixels, "RectangleTexture-copy-from");
186
187 sk_sp<GrSurfaceContext> rectContext = context->priv().makeWrappedSurfaceContext(
188 std::move(rectProxy), GrColorType::kRGBA_8888, kPremul_SkAlphaType);
189 SkASSERT(rectContext);
190
191 test_read_pixels(reporter, rectContext.get(), refPixels, "RectangleTexture-read");
192
193 test_copy_to_surface(reporter, context, rectContext.get(), "RectangleTexture-copy-to");
194
195 test_write_pixels(reporter, rectContext.get(), true, "RectangleTexture-write");
196
197 test_clear(reporter, rectContext.get());
198
199 GR_GL_CALL(glContext->gl(), DeleteTextures(1, &rectTexID));
200 }
201 }
202