1/* 2 * Copyright 2011, The Android Open Source Project 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#define LOG_TAG "RasterRenderer" 27#define LOG_NDEBUG 1 28 29#include "config.h" 30#include "RasterRenderer.h" 31 32#if USE(ACCELERATED_COMPOSITING) 33 34#include "AndroidLog.h" 35#include "GLUtils.h" 36#include "SkBitmap.h" 37#include "SkBitmapRef.h" 38#include "SkCanvas.h" 39#include "SkDevice.h" 40#include "Tile.h" 41#include "TilesManager.h" 42 43namespace WebCore { 44 45RasterRenderer::RasterRenderer() 46 : BaseRenderer(BaseRenderer::Raster) 47 , m_bitmapIsPureColor(false) 48{ 49 m_bitmap.setConfig(SkBitmap::kARGB_8888_Config, 50 TilesManager::instance()->tileWidth(), 51 TilesManager::instance()->tileHeight()); 52 m_bitmap.allocPixels(); 53#ifdef DEBUG_COUNT 54 ClassTracker::instance()->increment("RasterRenderer"); 55#endif 56} 57 58RasterRenderer::~RasterRenderer() 59{ 60#ifdef DEBUG_COUNT 61 ClassTracker::instance()->decrement("RasterRenderer"); 62#endif 63} 64 65void RasterRenderer::setupCanvas(const TileRenderInfo& renderInfo, SkCanvas* canvas) 66{ 67 TRACE_METHOD(); 68 69 if (renderInfo.baseTile->isLayerTile()) { 70 m_bitmap.setIsOpaque(false); 71 72 // clear bitmap if necessary 73 if (!m_bitmapIsPureColor || m_bitmapPureColor != Color::transparent) 74 m_bitmap.eraseARGB(0, 0, 0, 0); 75 } else { 76 Color defaultBackground = Color::white; 77 Color* background = renderInfo.tilePainter->background(); 78 if (!background) { 79 ALOGV("No background color for base layer!"); 80 background = &defaultBackground; 81 } 82 ALOGV("setupCanvas use background on Base Layer %x", background->rgb()); 83 m_bitmap.setIsOpaque(!background->hasAlpha()); 84 85 // fill background color if necessary 86 if (!m_bitmapIsPureColor || m_bitmapPureColor != *background) 87 m_bitmap.eraseARGB(background->alpha(), background->red(), 88 background->green(), background->blue()); 89 } 90 91 SkDevice* device = new SkDevice(m_bitmap); 92 93 canvas->setDevice(device); 94 95 device->unref(); 96} 97 98void RasterRenderer::renderingComplete(const TileRenderInfo& renderInfo, SkCanvas* canvas) 99{ 100 // We may swap the content of m_bitmap with the bitmap in the transfer queue. 101 GLUtils::paintTextureWithBitmap(&renderInfo, m_bitmap); 102} 103 104void RasterRenderer::deviceCheckForPureColor(TileRenderInfo& renderInfo, SkCanvas* canvas) 105{ 106 if (!renderInfo.isPureColor) { 107 // base renderer may have already determined isPureColor, so only do the 108 // brute force check if needed 109 renderInfo.isPureColor = GLUtils::isPureColorBitmap(m_bitmap, renderInfo.pureColor); 110 } 111 112 m_bitmapIsPureColor = renderInfo.isPureColor; 113 m_bitmapPureColor = renderInfo.pureColor; 114} 115 116} // namespace WebCore 117 118#endif // USE(ACCELERATED_COMPOSITING) 119