11a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org/* 21a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org * Copyright 2013 Google Inc. 31a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org * 41a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org * Use of this source code is governed by a BSD-style license that can be 51a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org * found in the LICENSE file. 61a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org */ 71a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org 81a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org#include "SkTileImageFilter.h" 91a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org#include "SkBitmap.h" 101a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org#include "SkCanvas.h" 111a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org#include "SkDevice.h" 128b0e8ac5f582de80356019406e2975079bf0829dcommit-bot@chromium.org#include "SkReadBuffer.h" 138b0e8ac5f582de80356019406e2975079bf0829dcommit-bot@chromium.org#include "SkWriteBuffer.h" 141a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org#include "SkMatrix.h" 151a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org#include "SkPaint.h" 161a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org#include "SkShader.h" 17c0b7e10c6a68f59e1653e6c18e6bc954b3c3f0cfcommit-bot@chromium.org#include "SkValidationUtils.h" 181a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org 199fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reedSkTileImageFilter* SkTileImageFilter::Create(const SkRect& srcRect, const SkRect& dstRect, 205e5f948b6b363dbfc8c076d8ff0c6b8e9ea99958senorblanco SkImageFilter* input, uint32_t uniqueID) { 219fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed if (!SkIsValidRect(srcRect) || !SkIsValidRect(dstRect)) { 229fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed return NULL; 239fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed } 245e5f948b6b363dbfc8c076d8ff0c6b8e9ea99958senorblanco return SkNEW_ARGS(SkTileImageFilter, (srcRect, dstRect, input, uniqueID)); 259fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed} 269fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed 27f7efa502d62af80bd15b03e1131603fb6577c3dfcommit-bot@chromium.orgbool SkTileImageFilter::onFilterImage(Proxy* proxy, const SkBitmap& src, 28f7efa502d62af80bd15b03e1131603fb6577c3dfcommit-bot@chromium.org const Context& ctx, 29ae761f7545d8ebf181d220169afac2056b057b8ccommit-bot@chromium.org SkBitmap* dst, SkIPoint* offset) const { 301a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org SkBitmap source = src; 311a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org SkImageFilter* input = getInput(0); 326776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org SkIPoint srcOffset = SkIPoint::Make(0, 0); 334cb543d6057b692e1099e9f115155f0bf323a0c8senorblanco@chromium.org if (input && !input->filterImage(proxy, src, ctx, &source, &srcOffset)) { 341a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org return false; 351a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org } 361a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org 37e93e1dbf0eced1e1b9aeed7c0c170961e2d61e32senorblanco@chromium.org SkRect dstRect; 384cb543d6057b692e1099e9f115155f0bf323a0c8senorblanco@chromium.org ctx.ctm().mapRect(&dstRect, fDstRect); 396776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org SkIRect dstIRect; 406776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org dstRect.roundOut(&dstIRect); 416776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org int w = dstIRect.width(); 426776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org int h = dstIRect.height(); 431a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org if (!fSrcRect.width() || !fSrcRect.height() || !w || !h) { 441a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org return false; 451a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org } 461a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org 47e93e1dbf0eced1e1b9aeed7c0c170961e2d61e32senorblanco@chromium.org SkRect srcRect; 484cb543d6057b692e1099e9f115155f0bf323a0c8senorblanco@chromium.org ctx.ctm().mapRect(&srcRect, fSrcRect); 49e93e1dbf0eced1e1b9aeed7c0c170961e2d61e32senorblanco@chromium.org SkIRect srcIRect; 50e93e1dbf0eced1e1b9aeed7c0c170961e2d61e32senorblanco@chromium.org srcRect.roundOut(&srcIRect); 516776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org srcIRect.offset(-srcOffset); 521a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org SkBitmap subset; 53e93e1dbf0eced1e1b9aeed7c0c170961e2d61e32senorblanco@chromium.org SkIRect bounds; 54e93e1dbf0eced1e1b9aeed7c0c170961e2d61e32senorblanco@chromium.org source.getBounds(&bounds); 556776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org 56e93e1dbf0eced1e1b9aeed7c0c170961e2d61e32senorblanco@chromium.org if (!srcIRect.intersect(bounds)) { 576776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org offset->fX = offset->fY = 0; 58e93e1dbf0eced1e1b9aeed7c0c170961e2d61e32senorblanco@chromium.org return true; 59e93e1dbf0eced1e1b9aeed7c0c170961e2d61e32senorblanco@chromium.org } else if (!source.extractSubset(&subset, srcIRect)) { 601a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org return false; 611a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org } 621a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org 631a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(w, h)); 64cd3b15ca6364a04b0eeeb4f89c7daa8aefe854c8commit-bot@chromium.org if (NULL == device.get()) { 65cd3b15ca6364a04b0eeeb4f89c7daa8aefe854c8commit-bot@chromium.org return false; 66cd3b15ca6364a04b0eeeb4f89c7daa8aefe854c8commit-bot@chromium.org } 671a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org SkCanvas canvas(device); 681a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org SkPaint paint; 691a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org paint.setXfermodeMode(SkXfermode::kSrc_Mode); 701a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org 716776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org SkMatrix shaderMatrix; 726776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org shaderMatrix.setTranslate(SkIntToScalar(srcOffset.fX), 736776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org SkIntToScalar(srcOffset.fY)); 749c9005a347e9996f357bd79591bd34f74f8bbc66commit-bot@chromium.org SkAutoTUnref<SkShader> shader(SkShader::CreateBitmapShader(subset, 759c9005a347e9996f357bd79591bd34f74f8bbc66commit-bot@chromium.org SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode, 769c9005a347e9996f357bd79591bd34f74f8bbc66commit-bot@chromium.org &shaderMatrix)); 771a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org paint.setShader(shader); 786776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org canvas.translate(-dstRect.fLeft, -dstRect.fTop); 791a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org canvas.drawRect(dstRect, paint); 801a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org *dst = device->accessBitmap(false); 816776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org offset->fX = dstIRect.fLeft; 826776b82d466fa93ccffd251fdf556fe058395444senorblanco@chromium.org offset->fY = dstIRect.fTop; 831a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org return true; 841a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org} 851a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org 860a5c233e3b911232c0d6f9a88ded99ecf88b8a97senorblanco@chromium.orgbool SkTileImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm, 870a5c233e3b911232c0d6f9a88ded99ecf88b8a97senorblanco@chromium.org SkIRect* dst) const { 880a5c233e3b911232c0d6f9a88ded99ecf88b8a97senorblanco@chromium.org SkRect srcRect; 890a5c233e3b911232c0d6f9a88ded99ecf88b8a97senorblanco@chromium.org ctm.mapRect(&srcRect, fSrcRect); 900a5c233e3b911232c0d6f9a88ded99ecf88b8a97senorblanco@chromium.org SkIRect srcIRect; 910a5c233e3b911232c0d6f9a88ded99ecf88b8a97senorblanco@chromium.org srcRect.roundOut(&srcIRect); 920a5c233e3b911232c0d6f9a88ded99ecf88b8a97senorblanco@chromium.org srcIRect.join(src); 930a5c233e3b911232c0d6f9a88ded99ecf88b8a97senorblanco@chromium.org *dst = srcIRect; 940a5c233e3b911232c0d6f9a88ded99ecf88b8a97senorblanco@chromium.org return true; 950a5c233e3b911232c0d6f9a88ded99ecf88b8a97senorblanco@chromium.org} 960a5c233e3b911232c0d6f9a88ded99ecf88b8a97senorblanco@chromium.org 979fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed#ifdef SK_SUPPORT_LEGACY_DEEPFLATTENING 988b0e8ac5f582de80356019406e2975079bf0829dcommit-bot@chromium.orgSkTileImageFilter::SkTileImageFilter(SkReadBuffer& buffer) 99ce33d60187718e7bb01944ee130c9f5d9fb335eccommit-bot@chromium.org : INHERITED(1, buffer) { 1001a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org buffer.readRect(&fSrcRect); 1011a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org buffer.readRect(&fDstRect); 102c2e9db30d393862bd3485cfe57b4ac06433f2f32commit-bot@chromium.org buffer.validate(buffer.isValid() && SkIsValidRect(fSrcRect) && SkIsValidRect(fDstRect)); 1031a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org} 1049fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed#endif 1059fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed 1069fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reedSkFlattenable* SkTileImageFilter::CreateProc(SkReadBuffer& buffer) { 1079fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed SK_IMAGEFILTER_UNFLATTEN_COMMON(common, 1); 1089fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed SkRect src, dst; 1099fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed buffer.readRect(&src); 1109fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed buffer.readRect(&dst); 1115e5f948b6b363dbfc8c076d8ff0c6b8e9ea99958senorblanco return Create(src, dst, common.getInput(0), common.uniqueID()); 1129fa60daad4d5f54c0dbe3dbcc7608a8f6d721187reed} 1131a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org 1148b0e8ac5f582de80356019406e2975079bf0829dcommit-bot@chromium.orgvoid SkTileImageFilter::flatten(SkWriteBuffer& buffer) const { 1151a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org this->INHERITED::flatten(buffer); 1161a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org buffer.writeRect(fSrcRect); 1171a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org buffer.writeRect(fDstRect); 1181a4fb70c8a04db2d92ec821555f91218a989031dcommit-bot@chromium.org} 119