tunnel down texture-size-constraint to imagefilters

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 529 matching lines @@
                               morphType, bounds, direction);
         apply_morphology_rect_no_bounds(drawContext, clip, texture, middleSrcRect, middleDstRect,
                                         radius, morphType, direction);
     }
 }
 
 bool apply_morphology(const SkBitmap& input,
                       const SkIRect& rect,
                       GrMorphologyEffect::MorphologyType morphType,
                       SkISize radius,
-                      SkBitmap* dst) {
+                      SkBitmap* dst,
+                      GrTextureProvider::SizeConstraint constraint) {
     SkAutoTUnref<GrTexture> srcTexture(SkRef(input.getTexture()));
     SkASSERT(srcTexture);
     GrContext* context = srcTexture->getContext();
 
     // 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* scratch = context->textureProvider()->createApproxTexture(desc);
+        GrTextureProvider::SizeConstraint horiConstraint = constraint;
+        if (radius.fHeight > 0) {
+            // Optimization: we will fall through and allocate the "real" texture after this one
+            // so ours can be approximate (likely faster to allocate)
+            horiConstraint = GrTextureProvider::kApprox_SizeConstraint;
+        }
+
+        GrTexture* scratch = context->textureProvider()->createTexture(desc, horiConstraint);
         if (nullptr == scratch) {
             return false;
         }
         SkAutoTUnref<GrDrawContext> dstDrawContext(
                                                 context->drawContext(scratch->asRenderTarget()));
         if (!dstDrawContext) {
             return false;
         }
 
         apply_morphology_pass(dstDrawContext, 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;
         dstDrawContext->clear(&clearRect, clearColor, false);
 
         srcTexture.reset(scratch);
         srcRect = dstRect;
     }
     if (radius.fHeight > 0) {
-        GrTexture* scratch = context->textureProvider()->createApproxTexture(desc);
+        GrTexture* scratch = context->textureProvider()->createTexture(desc, constraint);
         if (nullptr == scratch) {
             return false;
         }
         SkAutoTUnref<GrDrawContext> dstDrawContext(
                                                 context->drawContext(scratch->asRenderTarget()));
         if (!dstDrawContext) {
             return false;
         }
 
         apply_morphology_pass(dstDrawContext, clip, srcTexture,
@@ skipping 37 matching lines @@
     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)) {
+    if (!apply_morphology(input, srcBounds, type, SkISize::Make(width, height), result,
+                          GrTextureProvider::FromImageFilter(ctx.sizeConstraint()))) {
         return false;
     }
     offset->fX = bounds.left();
     offset->fY = bounds.top();
     return true;
 }
 
 bool SkDilateImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const Context& ctx,
                                          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