1 /*
2 * Copyright 2021 Google LLC
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 "gm/gm.h"
9 #include "include/core/SkBitmap.h"
10 #include "include/core/SkCanvas.h"
11 #include "include/core/SkPaint.h"
12 #include "include/core/SkRect.h"
13 #include "include/core/SkSize.h"
14 #include "include/core/SkString.h"
15 #include "include/gpu/ganesh/GrDirectContext.h"
16 #include "src/base/SkRectMemcpy.h"
17 #include "src/core/SkCanvasPriv.h"
18 #include "src/core/SkConvertPixels.h"
19 #include "src/gpu/ganesh/GrCanvas.h"
20 #include "src/gpu/ganesh/GrCaps.h"
21 #include "src/gpu/ganesh/GrDirectContextPriv.h"
22 #include "src/gpu/ganesh/GrPaint.h"
23 #include "src/gpu/ganesh/GrProxyProvider.h"
24 #include "src/gpu/ganesh/GrResourceProvider.h"
25 #include "src/gpu/ganesh/GrTexture.h"
26 #include "src/gpu/ganesh/SkGr.h"
27 #include "src/gpu/ganesh/SurfaceDrawContext.h"
28 #include "src/gpu/ganesh/effects/GrTextureEffect.h"
29 #include "tools/gpu/ProxyUtils.h"
30
create_view(GrDirectContext * dContext,const SkBitmap & src,GrSurfaceOrigin origin)31 static GrSurfaceProxyView create_view(GrDirectContext* dContext,
32 const SkBitmap& src,
33 GrSurfaceOrigin origin) {
34 SkASSERT(src.colorType() == kRGBA_8888_SkColorType);
35
36 #define USE_LAZY_PROXIES 1 // Toggle this to generate the reference images
37
38 if (USE_LAZY_PROXIES) {
39 auto format = dContext->priv().caps()->getDefaultBackendFormat(GrColorType::kRGBA_8888,
40 GrRenderable::kNo);
41 if (!format.isValid()) {
42 return {};
43 }
44
45 sk_sp<GrTextureProxy> proxy = GrProxyProvider::MakeFullyLazyProxy(
46 [src](GrResourceProvider* rp, const GrSurfaceProxy::LazySurfaceDesc& desc)
47 -> GrSurfaceProxy::LazyCallbackResult {
48 SkASSERT(desc.fMipmapped == skgpu::Mipmapped::kNo);
49 GrMipLevel mipLevel = {src.getPixels(), src.rowBytes(), nullptr};
50 auto colorType = SkColorTypeToGrColorType(src.colorType());
51
52 return rp->createTexture(src.dimensions(),
53 desc.fFormat,
54 desc.fTextureType,
55 colorType,
56 desc.fRenderable,
57 desc.fSampleCnt,
58 desc.fBudgeted,
59 desc.fFit,
60 desc.fProtected,
61 mipLevel,
62 desc.fLabel);
63 },
64 format,
65 GrRenderable::kNo,
66 1,
67 GrProtected::kNo,
68 *dContext->priv().caps(),
69 GrSurfaceProxy::UseAllocator::kYes);
70
71 if (!proxy) {
72 return {};
73 }
74
75 auto swizzle = dContext->priv().caps()->getReadSwizzle(proxy->backendFormat(),
76 GrColorType::kRGBA_8888);
77 return GrSurfaceProxyView(std::move(proxy), origin, swizzle);
78 }
79
80 return sk_gpu_test::MakeTextureProxyViewFromData(dContext,
81 GrRenderable::kNo,
82 origin,
83 src.pixmap());
84 }
85
86 // Create an over large texture which is initialized to opaque black outside of the content
87 // rect. The inside of the content rect consists of a grey coordinate frame lacking the -Y axis.
88 // The -X and +X axes have a red and green dot at their ends (respectively). Finally, the content
89 // rect has a 1-pixel wide blue border.
create_bitmap(SkIRect contentRect,SkISize fullSize,GrSurfaceOrigin origin)90 static SkBitmap create_bitmap(SkIRect contentRect, SkISize fullSize, GrSurfaceOrigin origin) {
91
92 const int kContentSize = contentRect.width();
93 SkBitmap contentBM;
94
95 {
96 SkImageInfo contentInfo = SkImageInfo::Make(kContentSize, kContentSize,
97 kRGBA_8888_SkColorType, kOpaque_SkAlphaType);
98 contentBM.allocPixels(contentInfo);
99
100 contentBM.eraseColor(SK_ColorWHITE);
101
102 const int halfM1 = kContentSize/2 - 1;
103
104 // The coordinate frame
105 contentBM.eraseArea(SkIRect::MakeXYWH(halfM1, 2,2, halfM1), SK_ColorGRAY);
106 contentBM.eraseArea(SkIRect::MakeXYWH(2, halfM1, kContentSize-4, 2), SK_ColorGRAY);
107
108 contentBM.eraseArea(SkIRect::MakeXYWH(2, halfM1, 2, 2), SK_ColorRED);
109 contentBM.eraseArea(SkIRect::MakeXYWH(kContentSize-4, halfM1, 2, 2), SK_ColorGREEN);
110
111 // The 1-pixel wide rim around the content rect
112 contentBM.eraseArea(SkIRect::MakeXYWH(0, 0, kContentSize, 1), SK_ColorBLUE);
113 contentBM.eraseArea(SkIRect::MakeXYWH(0, 0, 1, kContentSize), SK_ColorBLUE);
114 contentBM.eraseArea(SkIRect::MakeXYWH(kContentSize-1, 0, 1, kContentSize), SK_ColorBLUE);
115 contentBM.eraseArea(SkIRect::MakeXYWH(0, kContentSize-1, kContentSize, 1), SK_ColorBLUE);
116 }
117
118 SkBitmap bigBM;
119
120 {
121 const int kLeft = contentRect.fLeft;
122 const int kTop = contentRect.fTop;
123
124 SkImageInfo bigInfo = SkImageInfo::Make(fullSize.fWidth, fullSize.fHeight,
125 kRGBA_8888_SkColorType, kOpaque_SkAlphaType);
126
127 bigBM.allocPixels(bigInfo);
128
129 bigBM.eraseColor(SK_ColorBLACK);
130
131 const char* src = static_cast<const char*>(contentBM.getPixels());
132 size_t srcRB = contentBM.rowBytes();
133 size_t dstRB = bigBM.rowBytes();
134
135 if (USE_LAZY_PROXIES && origin == kBottomLeft_GrSurfaceOrigin) {
136 char* dst = static_cast<char*>(bigBM.getAddr(kLeft, fullSize.height() - kTop - 1));
137 for (int y = 0; y < contentBM.height(); ++y) {
138 memcpy(dst, src, srcRB);
139 src = src + srcRB;
140 dst = dst - dstRB;
141 }
142 } else {
143 char* dst = static_cast<char*>(bigBM.getAddr(kLeft, kTop));
144 SkRectMemcpy(dst, dstRB, src, srcRB,
145 contentBM.rowBytes(), contentBM.height());
146 }
147
148 bigBM.setAlphaType(kOpaque_SkAlphaType);
149 bigBM.setImmutable();
150 }
151
152 return bigBM;
153 }
154
draw_texture(const GrCaps * caps,skgpu::ganesh::SurfaceDrawContext * sdc,const GrSurfaceProxyView & src,const SkIRect & srcRect,const SkIRect & drawRect,const SkMatrix & mat,GrSamplerState::WrapMode xTileMode,GrSamplerState::WrapMode yTileMode)155 static void draw_texture(const GrCaps* caps,
156 skgpu::ganesh::SurfaceDrawContext* sdc,
157 const GrSurfaceProxyView& src,
158 const SkIRect& srcRect,
159 const SkIRect& drawRect,
160 const SkMatrix& mat,
161 GrSamplerState::WrapMode xTileMode,
162 GrSamplerState::WrapMode yTileMode) {
163 GrSamplerState sampler(xTileMode, yTileMode, SkFilterMode::kNearest);
164
165 auto fp = GrTextureEffect::MakeSubset(src, kOpaque_SkAlphaType, mat,
166 sampler, SkRect::Make(srcRect), *caps);
167 GrPaint paint;
168 paint.setColorFragmentProcessor(std::move(fp));
169
170 sdc->drawRect(nullptr, std::move(paint), GrAA::kNo, SkMatrix::I(), SkRect::Make(drawRect));
171 }
172
173 namespace skiagm {
174
175 // This GM exercises all the different tile modes for a texture that cannot be normalized
176 // early (i.e., rectangle or fully-lazy).
177 // TODO: should we also test w/ mipmapping?
178 class LazyTilingGM : public GpuGM {
179 public:
LazyTilingGM(GrSurfaceOrigin origin)180 LazyTilingGM(GrSurfaceOrigin origin)
181 : fOrigin(origin)
182 , fContentRect(SkIRect::MakeXYWH(kLeftContentOffset, kTopContentOffset,
183 kContentSize, kContentSize)) {
184 this->setBGColor(0xFFCCCCCC);
185 }
186
187 protected:
getName() const188 SkString getName() const override {
189 return SkStringPrintf("lazytiling_%s", fOrigin == kTopLeft_GrSurfaceOrigin ? "tl" : "bl");
190 }
191
getISize()192 SkISize getISize() override { return SkISize::Make(kTotalWidth, kTotalHeight); }
193
onGpuSetup(SkCanvas * canvas,SkString * errorMsg,GraphiteTestContext *)194 DrawResult onGpuSetup(SkCanvas* canvas, SkString* errorMsg, GraphiteTestContext*) override {
195 auto dContext = GrAsDirectContext(canvas->recordingContext());
196 if (!dContext || dContext->abandoned()) {
197 return DrawResult::kSkip;
198 }
199
200 auto bm = create_bitmap(fContentRect,
201 { kLeftContentOffset + kContentSize + kRightContentPadding,
202 kTopContentOffset + kContentSize + kBottomContentPadding },
203 fOrigin);
204
205 fView = create_view(dContext, bm, fOrigin);
206 if (!fView.proxy()) {
207 *errorMsg = "Failed to create proxy";
208 return DrawResult::kFail;
209 }
210
211 return DrawResult::kOk;
212 }
213
onDraw(GrRecordingContext * rContext,SkCanvas * canvas,SkString * errorMsg)214 DrawResult onDraw(GrRecordingContext* rContext, SkCanvas* canvas, SkString* errorMsg) override {
215 auto sdc = skgpu::ganesh::TopDeviceSurfaceDrawContext(canvas);
216 if (!sdc) {
217 *errorMsg = kErrorMsg_DrawSkippedGpuOnly;
218 return DrawResult::kSkip;
219 }
220
221 int y = kPad;
222 for (auto yMode : { SkTileMode::kClamp, SkTileMode::kRepeat,
223 SkTileMode::kMirror, SkTileMode::kDecal }) {
224 int x = kPad;
225 for (auto xMode : { SkTileMode::kClamp, SkTileMode::kRepeat,
226 SkTileMode::kMirror, SkTileMode::kDecal }) {
227 SkIRect cellRect = SkIRect::MakeXYWH(x, y, 2*kContentSize, 2*kContentSize);
228 SkRect contentRect = SkRect::MakeXYWH(x+kContentSize/2, y+kContentSize/2,
229 kContentSize, kContentSize);
230
231 SkMatrix texMatrix = SkMatrix::RectToRect(contentRect, SkRect::Make(fContentRect));
232
233 draw_texture(rContext->priv().caps(),
234 sdc,
235 fView,
236 fContentRect,
237 cellRect,
238 texMatrix,
239 SkTileModeToWrapMode(xMode),
240 SkTileModeToWrapMode(yMode));
241
242 x += 2*kContentSize+kPad;
243 }
244
245 y += 2*kContentSize+kPad;
246 }
247
248 return DrawResult::kOk;
249 }
250
251 private:
252 inline static constexpr int kLeftContentOffset = 8;
253 inline static constexpr int kTopContentOffset = 16;
254 inline static constexpr int kRightContentPadding = 24;
255 inline static constexpr int kBottomContentPadding = 80;
256
257 inline static constexpr int kPad = 4; // on-screen padding between cells
258
259 inline static constexpr int kContentSize = 32;
260
261 // Each cell in this GM's grid is a square - 2*kContentSize on a side
262 inline static constexpr int kTotalWidth = (2*kContentSize+kPad) * kSkTileModeCount + kPad;
263 inline static constexpr int kTotalHeight = (2*kContentSize+kPad) * kSkTileModeCount + kPad;
264
265 GrSurfaceOrigin fOrigin;
266 SkIRect fContentRect;
267 GrSurfaceProxyView fView;
268
269 using INHERITED = GM;
270 };
271
272 //////////////////////////////////////////////////////////////////////////////
273
274 DEF_GM(return new LazyTilingGM(kTopLeft_GrSurfaceOrigin);)
275 DEF_GM(return new LazyTilingGM(kBottomLeft_GrSurfaceOrigin);)
276
277 } // namespace skiagm
278