| /* |
| * Copyright 2018 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkBlurPriv_DEFINED |
| #define SkBlurPriv_DEFINED |
| |
| #include "include/core/SkRRect.h" |
| #include "include/core/SkSize.h" |
| |
| static const int kSkBlurRRectMaxDivisions = 6; |
| |
| // This method computes all the parameters for drawing a partially occluded nine-patched |
| // blurred rrect mask: |
| // rrectToDraw - the integerized rrect to draw in the mask |
| // widthHeight - how large to make the mask (rrectToDraw will be centered in this coord sys) |
| // rectXs, rectYs - the x & y coordinates of the covering geometry lattice |
| // texXs, texYs - the texture coordinate at each point in rectXs & rectYs |
| // numXs, numYs - number of coordinates in the x & y directions |
| // skipMask - bit mask that contains a 1-bit whenever one of the cells is occluded |
| // It returns true if 'devRRect' is nine-patchable |
| bool SkComputeBlurredRRectParams(const SkRRect& srcRRect, const SkRRect& devRRect, |
| const SkRect& occluder, |
| SkScalar sigma, SkScalar xformedSigma, |
| SkRRect* rrectToDraw, |
| SkISize* widthHeight, |
| SkScalar rectXs[kSkBlurRRectMaxDivisions], |
| SkScalar rectYs[kSkBlurRRectMaxDivisions], |
| SkScalar texXs[kSkBlurRRectMaxDivisions], |
| SkScalar texYs[kSkBlurRRectMaxDivisions], |
| int* numXs, int* numYs, uint32_t* skipMask); |
| |
| extern void sk_register_blur_maskfilter_createproc(); |
| |
| #endif |
