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/*
* Copyright 2011, The Android Open Source Project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define LOG_TAG "RasterRenderer"
#define LOG_NDEBUG 1
#include "config.h"
#include "RasterRenderer.h"
#if USE(ACCELERATED_COMPOSITING)
#include "AndroidLog.h"
#include "GLUtils.h"
#include "SkBitmap.h"
#include "SkBitmapRef.h"
#include "SkCanvas.h"
#include "SkDevice.h"
#include "Tile.h"
#include "TilesManager.h"
namespace WebCore {
RasterRenderer::RasterRenderer()
: BaseRenderer(BaseRenderer::Raster)
, m_bitmapIsPureColor(false)
{
m_bitmap.setConfig(SkBitmap::kARGB_8888_Config,
TilesManager::instance()->tileWidth(),
TilesManager::instance()->tileHeight());
m_bitmap.allocPixels();
#ifdef DEBUG_COUNT
ClassTracker::instance()->increment("RasterRenderer");
#endif
}
RasterRenderer::~RasterRenderer()
{
#ifdef DEBUG_COUNT
ClassTracker::instance()->decrement("RasterRenderer");
#endif
}
void RasterRenderer::setupCanvas(const TileRenderInfo& renderInfo, SkCanvas* canvas)
{
TRACE_METHOD();
if (renderInfo.baseTile->isLayerTile()) {
m_bitmap.setIsOpaque(false);
// clear bitmap if necessary
if (!m_bitmapIsPureColor || m_bitmapPureColor != Color::transparent)
m_bitmap.eraseARGB(0, 0, 0, 0);
} else {
Color defaultBackground = Color::white;
Color* background = renderInfo.tilePainter->background();
if (!background) {
ALOGV("No background color for base layer!");
background = &defaultBackground;
}
ALOGV("setupCanvas use background on Base Layer %x", background->rgb());
m_bitmap.setIsOpaque(!background->hasAlpha());
// fill background color if necessary
if (!m_bitmapIsPureColor || m_bitmapPureColor != *background)
m_bitmap.eraseARGB(background->alpha(), background->red(),
background->green(), background->blue());
}
SkDevice* device = new SkDevice(m_bitmap);
canvas->setDevice(device);
device->unref();
}
void RasterRenderer::renderingComplete(const TileRenderInfo& renderInfo, SkCanvas* canvas)
{
// We may swap the content of m_bitmap with the bitmap in the transfer queue.
GLUtils::paintTextureWithBitmap(&renderInfo, m_bitmap);
}
void RasterRenderer::deviceCheckForPureColor(TileRenderInfo& renderInfo, SkCanvas* canvas)
{
if (!renderInfo.isPureColor) {
// base renderer may have already determined isPureColor, so only do the
// brute force check if needed
renderInfo.isPureColor = GLUtils::isPureColorBitmap(m_bitmap, renderInfo.pureColor);
}
m_bitmapIsPureColor = renderInfo.isPureColor;
m_bitmapPureColor = renderInfo.pureColor;
}
} // namespace WebCore
#endif // USE(ACCELERATED_COMPOSITING)
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