1d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com/* 2d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com * Copyright 2013 Google Inc. 3d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com * 4d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com * Use of this source code is governed by a BSD-style license that can be 5d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com * found in the LICENSE file. 6d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com */ 7d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 8d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com#ifndef SkBitmapProcState_MatrixTemplates_DEFINED 9d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com#define SkBitmapProcState_MatrixTemplates_DEFINED 10d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 11d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com#include "SkMath.h" 12d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com#include "SkMathPriv.h" 13d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 14d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.comtemplate <typename TileProc, bool tryDecal> 15d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.comvoid NoFilterProc_Scale(const SkBitmapProcState& s, uint32_t xy[], 16d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com int count, int x, int y) { 17d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkASSERT((s.fInvType & ~(SkMatrix::kTranslate_Mask | 18d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkMatrix::kScale_Mask)) == 0); 19d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 20d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com // we store y, x, x, x, x, x 21d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 22ad7ae6c821c530dd6cb54b0e8931ba8b10e8d87dreed const unsigned maxX = s.fPixmap.width() - 1; 23d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkFractionalInt fx; 24d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com { 25b3a835891cf221bdf4c6eeb4cf404b374955015ffmalita const SkBitmapProcStateAutoMapper mapper(s, x, y); 26ad7ae6c821c530dd6cb54b0e8931ba8b10e8d87dreed const unsigned maxY = s.fPixmap.height() - 1; 27be5cfa9a9e1cfb77beba27727df7149ab5e7d422fmalita *xy++ = TileProc::Y(s, mapper.fixedY(), maxY); 28be5cfa9a9e1cfb77beba27727df7149ab5e7d422fmalita fx = mapper.fractionalIntX(); 29d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com } 30d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 31d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com if (0 == maxX) { 32d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com // all of the following X values must be 0 33d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com memset(xy, 0, count * sizeof(uint16_t)); 34d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com return; 35d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com } 36d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 37d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com const SkFractionalInt dx = s.fInvSxFractionalInt; 38d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 399953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita if (tryDecal) { 409953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita const SkFixed fixedFx = SkFractionalIntToFixed(fx); 419953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita const SkFixed fixedDx = SkFractionalIntToFixed(dx); 429953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita 439953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita if (can_truncate_to_fixed_for_decal(fixedFx, fixedDx, count, maxX)) { 449953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita decal_nofilter_scale(xy, fixedFx, fixedDx, count); 459953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita return; 469953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita } 479953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita } 489953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita 499953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita int i; 509953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita for (i = (count >> 2); i > 0; --i) { 519953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita unsigned a, b; 529953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita a = TileProc::X(s, SkFractionalIntToFixed(fx), maxX); fx += dx; 539953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita b = TileProc::X(s, SkFractionalIntToFixed(fx), maxX); fx += dx; 54d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com#ifdef SK_CPU_BENDIAN 559953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita *xy++ = (a << 16) | b; 56d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com#else 579953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita *xy++ = (b << 16) | a; 58d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com#endif 599953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita a = TileProc::X(s, SkFractionalIntToFixed(fx), maxX); fx += dx; 609953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita b = TileProc::X(s, SkFractionalIntToFixed(fx), maxX); fx += dx; 61d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com#ifdef SK_CPU_BENDIAN 629953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita *xy++ = (a << 16) | b; 63d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com#else 649953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita *xy++ = (b << 16) | a; 65d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com#endif 669953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita } 679953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita uint16_t* xx = (uint16_t*)xy; 689953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita for (i = (count & 3); i > 0; --i) { 699953737bcf885a52c08ade6c503f2202e4dd9aa5Florin Malita *xx++ = TileProc::X(s, SkFractionalIntToFixed(fx), maxX); fx += dx; 70d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com } 71d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com} 72d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 73d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com// note: we could special-case on a matrix which is skewed in X but not Y. 74d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com// this would require a more general setup thatn SCALE does, but could use 75d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com// SCALE's inner loop that only looks at dx 76d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 77d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.comtemplate <typename TileProc> 78d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.comvoid NoFilterProc_Affine(const SkBitmapProcState& s, uint32_t xy[], 79d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com int count, int x, int y) { 80d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkASSERT(s.fInvType & SkMatrix::kAffine_Mask); 81d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkASSERT((s.fInvType & ~(SkMatrix::kTranslate_Mask | 82d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkMatrix::kScale_Mask | 83d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkMatrix::kAffine_Mask)) == 0); 84d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 85b3a835891cf221bdf4c6eeb4cf404b374955015ffmalita const SkBitmapProcStateAutoMapper mapper(s, x, y); 863e6be16e6d4dda6a27f0e1dbfe7c87fecfbf5577fmalita 87be5cfa9a9e1cfb77beba27727df7149ab5e7d422fmalita SkFractionalInt fx = mapper.fractionalIntX(); 88be5cfa9a9e1cfb77beba27727df7149ab5e7d422fmalita SkFractionalInt fy = mapper.fractionalIntY(); 89d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkFractionalInt dx = s.fInvSxFractionalInt; 90d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkFractionalInt dy = s.fInvKyFractionalInt; 91ad7ae6c821c530dd6cb54b0e8931ba8b10e8d87dreed int maxX = s.fPixmap.width() - 1; 92ad7ae6c821c530dd6cb54b0e8931ba8b10e8d87dreed int maxY = s.fPixmap.height() - 1; 93d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 94d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com for (int i = count; i > 0; --i) { 95d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com *xy++ = (TileProc::Y(s, SkFractionalIntToFixed(fy), maxY) << 16) | 96d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com TileProc::X(s, SkFractionalIntToFixed(fx), maxX); 97d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com fx += dx; fy += dy; 98d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com } 99d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com} 100d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 101d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.comtemplate <typename TileProc> 102d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.comvoid NoFilterProc_Persp(const SkBitmapProcState& s, uint32_t* SK_RESTRICT xy, 103d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com int count, int x, int y) { 104d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkASSERT(s.fInvType & SkMatrix::kPerspective_Mask); 105d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 106ad7ae6c821c530dd6cb54b0e8931ba8b10e8d87dreed int maxX = s.fPixmap.width() - 1; 107ad7ae6c821c530dd6cb54b0e8931ba8b10e8d87dreed int maxY = s.fPixmap.height() - 1; 108d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 109d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkPerspIter iter(s.fInvMatrix, 110d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkIntToScalar(x) + SK_ScalarHalf, 111d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com SkIntToScalar(y) + SK_ScalarHalf, count); 112d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 113d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com while ((count = iter.next()) != 0) { 114d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com const SkFixed* SK_RESTRICT srcXY = iter.getXY(); 115d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com while (--count >= 0) { 116d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com *xy++ = (TileProc::Y(s, srcXY[1], maxY) << 16) | 117d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com TileProc::X(s, srcXY[0], maxX); 118d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com srcXY += 2; 119d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com } 120d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com } 121d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com} 122d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com 123d9ae2314f58ccac54068a2e50a4a159cf3929c1areed@google.com#endif 124