Pass clip to context

src/effects/SkMorphologyImageFilter.cpp

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkMorphologyImageFilter.h"
 #include "SkBitmap.h"
 #include "SkColorPriv.h"
@@ skipping 545 matching lines @@
                                                GrMorphologyEffect::kDilate_MorphologyType;
 
     return GrMorphologyEffect::Create(textures[texIdx], dir, radius, type);
 }
 
 namespace {
 
 
 void apply_morphology_rect(GrContext* context,
                            GrRenderTarget* rt,
+                           const GrClip& clip,
                            GrTexture* texture,
                            const SkIRect& srcRect,
                            const SkIRect& dstRect,
                            int radius,
                            GrMorphologyEffect::MorphologyType morphType,
                            float bounds[2],
                            Gr1DKernelEffect::Direction direction) {
     GrPaint paint;
     paint.addColorProcessor(GrMorphologyEffect::Create(texture,
                                                        direction,
                                                        radius,
                                                        morphType,
                                                        bounds))->unref();
-    context->drawNonAARectToRect(rt, paint, SkMatrix::I(), SkRect::Make(dstRect),
+    context->drawNonAARectToRect(rt, clip, paint, SkMatrix::I(), SkRect::Make(dstRect),
                                  SkRect::Make(srcRect));
 }
 
 void apply_morphology_rect_no_bounds(GrContext* context,
                                      GrRenderTarget* rt,
+                                     const GrClip& clip,
                                      GrTexture* texture,
                                      const SkIRect& srcRect,
                                      const SkIRect& dstRect,
                                      int radius,
                                      GrMorphologyEffect::MorphologyType morphType,
                                      Gr1DKernelEffect::Direction direction) {
     GrPaint paint;
     paint.addColorProcessor(GrMorphologyEffect::Create(texture,
                                                        direction,
                                                        radius,
                                                        morphType))->unref();
-    context->drawNonAARectToRect(rt, paint, SkMatrix::I(), SkRect::Make(dstRect),
+    context->drawNonAARectToRect(rt, clip, paint, SkMatrix::I(), SkRect::Make(dstRect),
                                  SkRect::Make(srcRect));
 }
 
 void apply_morphology_pass(GrContext* context,
                            GrRenderTarget* rt,
+                           const GrClip& clip,
                            GrTexture* texture,
                            const SkIRect& srcRect,
                            const SkIRect& dstRect,
                            int radius,
                            GrMorphologyEffect::MorphologyType morphType,
                            Gr1DKernelEffect::Direction direction) {
     float bounds[2] = { 0.0f, 1.0f };
     SkIRect lowerSrcRect = srcRect, lowerDstRect = dstRect;
     SkIRect middleSrcRect = srcRect, middleDstRect = dstRect;
     SkIRect upperSrcRect = srcRect, upperDstRect = dstRect;
@@ skipping 11 matching lines @@
         bounds[1] = (SkIntToScalar(srcRect.bottom()) - 0.5f) / texture->height();
         lowerSrcRect.fBottom = srcRect.top() + radius;
         lowerDstRect.fBottom = dstRect.top() + radius;
         upperSrcRect.fTop = srcRect.bottom() - radius;
         upperDstRect.fTop = dstRect.bottom() - radius;
         middleSrcRect.inset(0, radius);
         middleDstRect.inset(0, radius);
     }
     if (middleSrcRect.fLeft - middleSrcRect.fRight >= 0) {
         // radius covers srcRect; use bounds over entire draw
-        apply_morphology_rect(context, rt, texture, srcRect, dstRect, radius,
+        apply_morphology_rect(context, rt, clip, texture, srcRect, dstRect, radius,
                               morphType, bounds, direction);
     } else {
         // Draw upper and lower margins with bounds; middle without.
-        apply_morphology_rect(context, rt,texture, lowerSrcRect, lowerDstRect, radius,
+        apply_morphology_rect(context, rt, clip, texture, lowerSrcRect, lowerDstRect, radius,
                               morphType, bounds, direction);
-        apply_morphology_rect(context, rt, texture, upperSrcRect, upperDstRect, radius,
+        apply_morphology_rect(context, rt, clip, texture, upperSrcRect, upperDstRect, radius,
                               morphType, bounds, direction);
-        apply_morphology_rect_no_bounds(context, rt, texture, middleSrcRect, middleDstRect, radius,
-                              morphType, direction);
+        apply_morphology_rect_no_bounds(context, rt, clip, texture, middleSrcRect, middleDstRect,
+                                        radius, morphType, direction);
     }
 }
 
 bool apply_morphology(const SkBitmap& input,
                       const SkIRect& rect,
                       GrMorphologyEffect::MorphologyType morphType,
                       SkISize radius,
                       SkBitmap* dst) {
     SkAutoTUnref<GrTexture> srcTexture(SkRef(input.getTexture()));
     SkASSERT(srcTexture);
     GrContext* context = srcTexture->getContext();
 
-    GrContext::AutoClip acs(context, SkRect::MakeWH(SkIntToScalar(srcTexture->width()),
-                                                    SkIntToScalar(srcTexture->height())));
+    // setup new clip
+    GrClip clip(SkRect::MakeWH(SkIntToScalar(srcTexture->width()),
+                               SkIntToScalar(srcTexture->height())));
 
     SkIRect dstRect = SkIRect::MakeWH(rect.width(), rect.height());
     GrSurfaceDesc desc;
     desc.fFlags = kRenderTarget_GrSurfaceFlag;
     desc.fWidth = rect.width();
     desc.fHeight = rect.height();
     desc.fConfig = kSkia8888_GrPixelConfig;
     SkIRect srcRect = rect;
 
     if (radius.fWidth > 0) {
         GrTexture* texture = context->refScratchTexture(desc, GrContext::kApprox_ScratchTexMatch);
         if (NULL == texture) {
             return false;
         }
-        apply_morphology_pass(context, texture->asRenderTarget(), srcTexture, srcRect, dstRect,
-                              radius.fWidth, morphType, Gr1DKernelEffect::kX_Direction);
+        apply_morphology_pass(context, texture->asRenderTarget(), clip, srcTexture,
+                              srcRect, dstRect, radius.fWidth, morphType,
+                              Gr1DKernelEffect::kX_Direction);
         SkIRect clearRect = SkIRect::MakeXYWH(dstRect.fLeft, dstRect.fBottom,
                                               dstRect.width(), radius.fHeight);
         GrColor clearColor = GrMorphologyEffect::kErode_MorphologyType == morphType ?
                                 SK_ColorWHITE :
                                 SK_ColorTRANSPARENT;
         context->clear(&clearRect, clearColor, false, texture->asRenderTarget());
         srcTexture.reset(texture);
         srcRect = dstRect;
     }
     if (radius.fHeight > 0) {
         GrTexture* texture = context->refScratchTexture(desc, GrContext::kApprox_ScratchTexMatch);
         if (NULL == texture) {
             return false;
         }
-        apply_morphology_pass(context, texture->asRenderTarget(), srcTexture, srcRect, dstRect,
-                              radius.fHeight, morphType, Gr1DKernelEffect::kY_Direction);
+        apply_morphology_pass(context, texture->asRenderTarget(), clip, srcTexture,
+                              srcRect, dstRect, radius.fHeight, morphType,
+                              Gr1DKernelEffect::kY_Direction);
         srcTexture.reset(texture);
     }
     SkImageFilter::WrapTexture(srcTexture, rect.width(), rect.height(), dst);
     return true;
 }
 
 };
 
 bool SkMorphologyImageFilter::filterImageGPUGeneric(bool dilate,
                                                     Proxy* proxy,
@@ skipping 43 matching lines @@
                                          SkBitmap* result, SkIPoint* offset) const {
     return this->filterImageGPUGeneric(true, proxy, src, ctx, result, offset);
 }
 
 bool SkErodeImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx,
                                         SkBitmap* result, SkIPoint* offset) const {
     return this->filterImageGPUGeneric(false, proxy, src, ctx, result, offset);
 }
 
 #endif