1 /* 2 * Copyright 2020 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "src/gpu/ops/SmallPathShapeData.h" 9 10 #include "src/gpu/geometry/GrStyledShape.h" 11 12 namespace skgpu::v1 { 13 SmallPathShapeDataKey(const GrStyledShape & shape,uint32_t dim)14SmallPathShapeDataKey::SmallPathShapeDataKey(const GrStyledShape& shape, uint32_t dim) { 15 // Shapes' keys are for their pre-style geometry, but by now we shouldn't have any 16 // relevant styling information. 17 SkASSERT(shape.style().isSimpleFill()); 18 SkASSERT(shape.hasUnstyledKey()); 19 int shapeKeySize = shape.unstyledKeySize(); 20 fKey.reset(1 + shapeKeySize); 21 fKey[0] = dim; 22 shape.writeUnstyledKey(&fKey[1]); 23 } 24 SmallPathShapeDataKey(const GrStyledShape & shape,const SkMatrix & ctm)25SmallPathShapeDataKey::SmallPathShapeDataKey(const GrStyledShape& shape, const SkMatrix& ctm) { 26 // Shapes' keys are for their pre-style geometry, but by now we shouldn't have any 27 // relevant styling information. 28 SkASSERT(shape.style().isSimpleFill()); 29 SkASSERT(shape.hasUnstyledKey()); 30 // We require the upper left 2x2 of the matrix to match exactly for a cache hit. 31 SkScalar sx = ctm.get(SkMatrix::kMScaleX); 32 SkScalar sy = ctm.get(SkMatrix::kMScaleY); 33 SkScalar kx = ctm.get(SkMatrix::kMSkewX); 34 SkScalar ky = ctm.get(SkMatrix::kMSkewY); 35 SkScalar tx = ctm.get(SkMatrix::kMTransX); 36 SkScalar ty = ctm.get(SkMatrix::kMTransY); 37 // Allow 8 bits each in x and y of subpixel positioning. 38 tx -= SkScalarFloorToScalar(tx); 39 ty -= SkScalarFloorToScalar(ty); 40 SkFixed fracX = SkScalarToFixed(tx) & 0x0000FF00; 41 SkFixed fracY = SkScalarToFixed(ty) & 0x0000FF00; 42 int shapeKeySize = shape.unstyledKeySize(); 43 fKey.reset(5 + shapeKeySize); 44 fKey[0] = SkFloat2Bits(sx); 45 fKey[1] = SkFloat2Bits(sy); 46 fKey[2] = SkFloat2Bits(kx); 47 fKey[3] = SkFloat2Bits(ky); 48 fKey[4] = fracX | (fracY >> 8); 49 shape.writeUnstyledKey(&fKey[5]); 50 } 51 52 } // namespace skgpu::v1 53