Implement support for a Context parameter in image filters

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 122 matching lines @@
 {
     procY(src.getAddr32(bounds.left(), bounds.top()), dst->getAddr32(0, 0),
           radiusY, bounds.height(), bounds.width(),
           src.rowBytesAsPixels(), dst->rowBytesAsPixels());
 }
 
 bool SkMorphologyImageFilter::filterImageGeneric(SkMorphologyImageFilter::Proc procX,
                                                  SkMorphologyImageFilter::Proc procY,
                                                  Proxy* proxy,
                                                  const SkBitmap& source,
-                                                 const SkMatrix& ctm,
+                                                 const Context& ctx,
                                                  SkBitmap* dst,
                                                  SkIPoint* offset) const {
     SkBitmap src = source;
     SkIPoint srcOffset = SkIPoint::Make(0, 0);
-    if (getInput(0) && !getInput(0)->filterImage(proxy, source, ctm, &src, &srcOffset)) {
+    if (getInput(0) && !getInput(0)->filterImage(proxy, source, ctx, &src, &srcOffset)) {
         return false;
     }
 
     if (src.colorType() != kPMColor_SkColorType) {
         return false;
     }
 
     SkIRect bounds;
     src.getBounds(&bounds);
     bounds.offset(srcOffset);
-    if (!this->applyCropRect(&bounds, ctm)) {
+    if (!this->applyCropRect(&bounds, ctx.ctm())) {
         return false;
     }
 
     SkAutoLockPixels alp(src);
     if (!src.getPixels()) {
         return false;
     }
 
     dst->setConfig(src.config(), bounds.width(), bounds.height());
     dst->allocPixels();
     if (!dst->getPixels()) {
         return false;
     }
 
     SkVector radius = SkVector::Make(SkIntToScalar(this->radius().width()),
                                      SkIntToScalar(this->radius().height()));
-    ctm.mapVectors(&radius, 1);
+    ctx.ctm().mapVectors(&radius, 1);
     int width = SkScalarFloorToInt(radius.fX);
     int height = SkScalarFloorToInt(radius.fY);
 
     if (width < 0 || height < 0) {
         return false;
     }
 
     SkIRect srcBounds = bounds;
     srcBounds.offset(-srcOffset);
 
@@ skipping 18 matching lines @@
         callProcX(procX, src, dst, width, srcBounds);
     } else if (height > 0) {
         callProcY(procY, src, dst, height, srcBounds);
     }
     offset->fX = bounds.left();
     offset->fY = bounds.top();
     return true;
 }
 
 bool SkErodeImageFilter::onFilterImage(Proxy* proxy,
-                                       const SkBitmap& source, const SkMatrix& ctm,
+                                       const SkBitmap& source, const Context& ctx,
                                        SkBitmap* dst, SkIPoint* offset) const {
     Proc erodeXProc = SkMorphologyGetPlatformProc(kErodeX_SkMorphologyProcType);
     if (!erodeXProc) {
         erodeXProc = erode<kX>;
     }
     Proc erodeYProc = SkMorphologyGetPlatformProc(kErodeY_SkMorphologyProcType);
     if (!erodeYProc) {
         erodeYProc = erode<kY>;
     }
-    return this->filterImageGeneric(erodeXProc, erodeYProc, proxy, source, ctm, dst, offset);
+    return this->filterImageGeneric(erodeXProc, erodeYProc, proxy, source, ctx, dst, offset);
 }
 
 bool SkDilateImageFilter::onFilterImage(Proxy* proxy,
-                                        const SkBitmap& source, const SkMatrix& ctm,
+                                        const SkBitmap& source, const Context& ctx,
                                         SkBitmap* dst, SkIPoint* offset) const {
     Proc dilateXProc = SkMorphologyGetPlatformProc(kDilateX_SkMorphologyProcType);
     if (!dilateXProc) {
         dilateXProc = dilate<kX>;
     }
     Proc dilateYProc = SkMorphologyGetPlatformProc(kDilateY_SkMorphologyProcType);
     if (!dilateYProc) {
         dilateYProc = dilate<kY>;
     }
-    return this->filterImageGeneric(dilateXProc, dilateYProc, proxy, source, ctm, dst, offset);
+    return this->filterImageGeneric(dilateXProc, dilateYProc, proxy, source, ctx, dst, offset);
 }
 
 void SkMorphologyImageFilter::computeFastBounds(const SkRect& src, SkRect* dst) const {
     if (getInput(0)) {
         getInput(0)->computeFastBounds(src, dst);
     } else {
         *dst = src;
     }
     dst->outset(SkIntToScalar(fRadius.width()), SkIntToScalar(fRadius.height()));
 }
@@ skipping 281 matching lines @@
     }
     SkImageFilter::WrapTexture(src, rect.width(), rect.height(), dst);
     return true;
 }
 
 };
 
 bool SkMorphologyImageFilter::filterImageGPUGeneric(bool dilate,
                                                     Proxy* proxy,
                                                     const SkBitmap& src,
-                                                    const SkMatrix& ctm,
+                                                    const Context& ctx,
                                                     SkBitmap* result,
                                                     SkIPoint* offset) const {
     SkBitmap input = src;
     SkIPoint srcOffset = SkIPoint::Make(0, 0);
-    if (getInput(0) && !getInput(0)->getInputResultGPU(proxy, src, ctm, &input, &srcOffset)) {
+    if (getInput(0) && !getInput(0)->getInputResultGPU(proxy, src, ctx, &input, &srcOffset)) {
         return false;
     }
     SkIRect bounds;
     input.getBounds(&bounds);
     bounds.offset(srcOffset);
-    if (!this->applyCropRect(&bounds, ctm)) {
+    if (!this->applyCropRect(&bounds, ctx.ctm())) {
         return false;
     }
     SkVector radius = SkVector::Make(SkIntToScalar(this->radius().width()),
                                      SkIntToScalar(this->radius().height()));
-    ctm.mapVectors(&radius, 1);
+    ctx.ctm().mapVectors(&radius, 1);
     int width = SkScalarFloorToInt(radius.fX);
     int height = SkScalarFloorToInt(radius.fY);
 
     if (width < 0 || height < 0) {
         return false;
     }
 
     SkIRect srcBounds = bounds;
     srcBounds.offset(-srcOffset);
     if (width == 0 && height == 0) {
         input.extractSubset(result, srcBounds);
         offset->fX = bounds.left();
         offset->fY = bounds.top();
         return true;
     }
 
     GrMorphologyEffect::MorphologyType type = dilate ? GrMorphologyEffect::kDilate_MorphologyType : GrMorphologyEffect::kErode_MorphologyType;
     if (!apply_morphology(input, srcBounds, type,
                           SkISize::Make(width, height), result)) {
         return false;
     }
     offset->fX = bounds.left();
     offset->fY = bounds.top();
     return true;
 }
 
-bool SkDilateImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const SkMatrix& ctm,
+bool SkDilateImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx,
                                          SkBitmap* result, SkIPoint* offset) const {
-    return this->filterImageGPUGeneric(true, proxy, src, ctm, result, offset);
+    return this->filterImageGPUGeneric(true, proxy, src, ctx, result, offset);
 }
 
-bool SkErodeImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const SkMatrix& ctm,
+bool SkErodeImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx,
                                         SkBitmap* result, SkIPoint* offset) const {
-    return this->filterImageGPUGeneric(false, proxy, src, ctm, result, offset);
+    return this->filterImageGPUGeneric(false, proxy, src, ctx, result, offset);
 }
 
 #endif