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Side by Side Diff: src/effects/SkGpuBlurUtils.cpp

Issue 2164363002: Add SkColorSpace to GrDrawContext (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Remove ':' from comment Created 4 years, 5 months ago
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1 /* 1 /*
2 * Copyright 2013 Google Inc. 2 * Copyright 2013 Google Inc.
3 * 3 *
4 * Use of this source code is governed by a BSD-style license that can be 4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file. 5 * found in the LICENSE file.
6 */ 6 */
7 7
8 #include "SkGpuBlurUtils.h" 8 #include "SkGpuBlurUtils.h"
9 9
10 #include "SkRect.h" 10 #include "SkRect.h"
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175 direction, radius, sigma, true, bounds); 175 direction, radius, sigma, true, bounds);
176 convolve_gaussian_1d(drawContext, clip, midRect, srcOffset, texture, 176 convolve_gaussian_1d(drawContext, clip, midRect, srcOffset, texture,
177 direction, radius, sigma, false, bounds); 177 direction, radius, sigma, false, bounds);
178 } 178 }
179 } 179 }
180 180
181 namespace SkGpuBlurUtils { 181 namespace SkGpuBlurUtils {
182 182
183 sk_sp<GrDrawContext> GaussianBlur(GrContext* context, 183 sk_sp<GrDrawContext> GaussianBlur(GrContext* context,
184 GrTexture* origSrc, 184 GrTexture* origSrc,
185 sk_sp<SkColorSpace> colorSpace,
185 bool gammaCorrect, 186 bool gammaCorrect,
186 const SkIRect& dstBounds, 187 const SkIRect& dstBounds,
187 const SkIRect* srcBounds, 188 const SkIRect* srcBounds,
188 float sigmaX, 189 float sigmaX,
189 float sigmaY) { 190 float sigmaY) {
190 SkASSERT(context); 191 SkASSERT(context);
191 SkIRect clearRect; 192 SkIRect clearRect;
192 int scaleFactorX, radiusX; 193 int scaleFactorX, radiusX;
193 int scaleFactorY, radiusY; 194 int scaleFactorY, radiusY;
194 int maxTextureSize = context->caps()->maxTextureSize(); 195 int maxTextureSize = context->caps()->maxTextureSize();
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223 kAlpha_8_GrPixelConfig == srcTexture->config()); 224 kAlpha_8_GrPixelConfig == srcTexture->config());
224 225
225 const int width = dstBounds.width(); 226 const int width = dstBounds.width();
226 const int height = dstBounds.height(); 227 const int height = dstBounds.height();
227 const GrPixelConfig config = srcTexture->config(); 228 const GrPixelConfig config = srcTexture->config();
228 229
229 const SkSurfaceProps props(gammaCorrect ? SkSurfaceProps::kGammaCorrect_Flag : 0, 230 const SkSurfaceProps props(gammaCorrect ? SkSurfaceProps::kGammaCorrect_Flag : 0,
230 SkSurfaceProps::kLegacyFontHost_InitType); 231 SkSurfaceProps::kLegacyFontHost_InitType);
231 232
232 sk_sp<GrDrawContext> dstDrawContext(context->newDrawContext(SkBackingFit::kA pprox, 233 sk_sp<GrDrawContext> dstDrawContext(context->newDrawContext(SkBackingFit::kA pprox,
233 width, height, c onfig, 234 width, height, c onfig, colorSpace,
234 0, kDefault_GrSu rfaceOrigin, 235 0, kDefault_GrSu rfaceOrigin,
235 &props)); 236 &props));
236 if (!dstDrawContext) { 237 if (!dstDrawContext) {
237 return nullptr; 238 return nullptr;
238 } 239 }
239 240
240 // For really small blurs (certainly no wider than 5x5 on desktop gpus) it i s faster to just 241 // For really small blurs (certainly no wider than 5x5 on desktop gpus) it i s faster to just
241 // launch a single non separable kernel vs two launches 242 // launch a single non separable kernel vs two launches
242 if (sigmaX > 0.0f && sigmaY > 0.0f && 243 if (sigmaX > 0.0f && sigmaY > 0.0f &&
243 (2 * radiusX + 1) * (2 * radiusY + 1) <= MAX_KERNEL_SIZE) { 244 (2 * radiusX + 1) * (2 * radiusY + 1) <= MAX_KERNEL_SIZE) {
244 // We shouldn't be scaling because this is a small size blur 245 // We shouldn't be scaling because this is a small size blur
245 SkASSERT((1 == scaleFactorX) && (1 == scaleFactorY)); 246 SkASSERT((1 == scaleFactorX) && (1 == scaleFactorY));
246 247
247 convolve_gaussian_2d(dstDrawContext.get(), clip, localDstBounds, srcOffs et, 248 convolve_gaussian_2d(dstDrawContext.get(), clip, localDstBounds, srcOffs et,
248 srcTexture.get(), radiusX, radiusY, sigmaX, sigmaY, srcBounds); 249 srcTexture.get(), radiusX, radiusY, sigmaX, sigmaY, srcBounds);
249 250
250 return dstDrawContext; 251 return dstDrawContext;
251 } 252 }
252 253
253 sk_sp<GrDrawContext> tmpDrawContext(context->newDrawContext(SkBackingFit::kA pprox, 254 sk_sp<GrDrawContext> tmpDrawContext(context->newDrawContext(SkBackingFit::kA pprox,
254 width, height, c onfig, 255 width, height, c onfig, colorSpace,
255 0, kDefault_GrSu rfaceOrigin, 256 0, kDefault_GrSu rfaceOrigin,
256 &props)); 257 &props));
257 if (!tmpDrawContext) { 258 if (!tmpDrawContext) {
258 return nullptr; 259 return nullptr;
259 } 260 }
260 261
261 sk_sp<GrDrawContext> srcDrawContext; 262 sk_sp<GrDrawContext> srcDrawContext;
262 263
263 SkASSERT(SkIsPow2(scaleFactorX) && SkIsPow2(scaleFactorY)); 264 SkASSERT(SkIsPow2(scaleFactorX) && SkIsPow2(scaleFactorY));
264 265
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376 dstDrawContext.swap(tmpDrawContext); 377 dstDrawContext.swap(tmpDrawContext);
377 } 378 }
378 379
379 return srcDrawContext; 380 return srcDrawContext;
380 } 381 }
381 382
382 } 383 }
383 384
384 #endif 385 #endif
385 386
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