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/ganesh/ops/SmallPathShapeData.h" 9 10 #include "include/core/SkMatrix.h" 11 #include "include/core/SkScalar.h" 12 #include "include/private/base/SkFixed.h" 13 #include "src/base/SkFloatBits.h" 14 #include "src/gpu/ganesh/GrStyle.h" 15 #include "src/gpu/ganesh/geometry/GrStyledShape.h" 16 17 #if !defined(SK_ENABLE_OPTIMIZE_SIZE) 18 19 namespace skgpu::ganesh { 20 SmallPathShapeDataKey(const GrStyledShape & shape,uint32_t dim)21SmallPathShapeDataKey::SmallPathShapeDataKey(const GrStyledShape& shape, uint32_t dim) { 22 // Shapes' keys are for their pre-style geometry, but by now we shouldn't have any 23 // relevant styling information. 24 SkASSERT(shape.style().isSimpleFill()); 25 SkASSERT(shape.hasUnstyledKey()); 26 int shapeKeySize = shape.unstyledKeySize(); 27 fKey.reset(1 + shapeKeySize); 28 fKey[0] = dim; 29 shape.writeUnstyledKey(&fKey[1]); 30 } 31 SmallPathShapeDataKey(const GrStyledShape & shape,const SkMatrix & ctm)32SmallPathShapeDataKey::SmallPathShapeDataKey(const GrStyledShape& shape, const SkMatrix& ctm) { 33 // Shapes' keys are for their pre-style geometry, but by now we shouldn't have any 34 // relevant styling information. 35 SkASSERT(shape.style().isSimpleFill()); 36 SkASSERT(shape.hasUnstyledKey()); 37 // We require the upper left 2x2 of the matrix to match exactly for a cache hit. 38 SkScalar sx = ctm.get(SkMatrix::kMScaleX); 39 SkScalar sy = ctm.get(SkMatrix::kMScaleY); 40 SkScalar kx = ctm.get(SkMatrix::kMSkewX); 41 SkScalar ky = ctm.get(SkMatrix::kMSkewY); 42 SkScalar tx = ctm.get(SkMatrix::kMTransX); 43 SkScalar ty = ctm.get(SkMatrix::kMTransY); 44 // Allow 8 bits each in x and y of subpixel positioning. 45 tx -= SkScalarFloorToScalar(tx); 46 ty -= SkScalarFloorToScalar(ty); 47 SkFixed fracX = SkScalarToFixed(tx) & 0x0000FF00; 48 SkFixed fracY = SkScalarToFixed(ty) & 0x0000FF00; 49 int shapeKeySize = shape.unstyledKeySize(); 50 fKey.reset(5 + shapeKeySize); 51 fKey[0] = SkFloat2Bits(sx); 52 fKey[1] = SkFloat2Bits(sy); 53 fKey[2] = SkFloat2Bits(kx); 54 fKey[3] = SkFloat2Bits(ky); 55 fKey[4] = fracX | (fracY >> 8); 56 shape.writeUnstyledKey(&fKey[5]); 57 } 58 59 } // namespace skgpu::ganesh 60 61 #endif // SK_ENABLE_OPTIMIZE_SIZE 62