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Diffstat (limited to 'WebCore/platform/graphics/android/ImageAndroid.cpp')
| -rw-r--r-- | WebCore/platform/graphics/android/ImageAndroid.cpp | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/WebCore/platform/graphics/android/ImageAndroid.cpp b/WebCore/platform/graphics/android/ImageAndroid.cpp new file mode 100644 index 0000000..00145af --- /dev/null +++ b/WebCore/platform/graphics/android/ImageAndroid.cpp @@ -0,0 +1,254 @@ +/* + * Copyright (C) 2004, 2005, 2006 Apple Computer, Inc. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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. + */ + +#include "config.h" +#include "AffineTransform.h" +#include "BitmapImage.h" +#include "Image.h" +#include "FloatRect.h" +#include "GraphicsContext.h" +#include "PlatformGraphicsContext.h" +#include "PlatformString.h" +#include "SharedBuffer.h" + +#include "android_graphics.h" +#include "SkBitmapRef.h" +#include "SkCanvas.h" +#include "SkColorPriv.h" +#include "SkShader.h" +#include "SkString.h" + +#include <utils/AssetManager.h> + +//#define TRACE_SUBSAMPLED_BITMAPS + +android::AssetManager* gGlobalAssetMgr; + +namespace WebCore { + +void FrameData::clear() +{ + if (m_frame) { + m_frame->unref(); + m_frame = 0; + m_duration = 0.; + m_hasAlpha = true; + } +} + +SkBitmapRef* BitmapImage::getBitmap() +{ + return m_bitmapRef; +} + +void BitmapImage::initPlatformData() +{ + m_bitmapRef = NULL; + m_source.clearURL(); +} + +void BitmapImage::invalidatePlatformData() +{ + if (m_bitmapRef) { + m_bitmapRef->unref(); + m_bitmapRef = NULL; + } +} + +void BitmapImage::checkForSolidColor() +{ + m_isSolidColor = false; + if (this->frameCount() > 1) { + if (!m_bitmapRef) { + return; + } + + const SkBitmap& bm = m_bitmapRef->bitmap(); + + if (bm.width() == 1 && bm.height() == 1) { + SkAutoLockPixels alp(bm); + if (bm.getPixels() == NULL) { + return; + } + + SkPMColor color; + switch (bm.getConfig()) { + case SkBitmap::kARGB_8888_Config: + color = *bm.getAddr32(0, 0); + break; + case SkBitmap::kRGB_565_Config: + color = SkPixel16ToPixel32(*bm.getAddr16(0, 0)); + break; + case SkBitmap::kIndex8_Config: { + SkColorTable* ctable = bm.getColorTable(); + if (!ctable) { + return; + } + color = (*ctable)[*bm.getAddr8(0, 0)]; + break; + } + default: // don't check other configs + return; + } + m_isSolidColor = true; + m_solidColor = android_SkPMColorToWebCoreColor(color); + } + } +} + +void BitmapImage::draw(GraphicsContext* ctxt, const FloatRect& dstRect, + const FloatRect& srcRect, CompositeOperator compositeOp) +{ + SkBitmapRef* image = this->nativeImageForCurrentFrame(); + if (!image) { // If it's too early we won't have an image yet. + return; + } + + // in case we get called with an incomplete bitmap + const SkBitmap& bitmap = image->bitmap(); + if (bitmap.getPixels() == NULL && bitmap.pixelRef() == NULL) { + return; + } + + SkIRect srcR; + SkRect dstR; + float invScaleX = (float)bitmap.width() / image->origWidth(); + float invScaleY = (float)bitmap.height() / image->origHeight(); + + android_setrect(&dstR, dstRect); + android_setrect_scaled(&srcR, srcRect, invScaleX, invScaleY); + if (srcR.isEmpty() || dstR.isEmpty()) { + return; + } + + SkCanvas* canvas = ctxt->platformContext()->mCanvas; + SkPaint paint; + + paint.setFilterBitmap(true); + paint.setPorterDuffXfermode(android_convert_compositeOp(compositeOp)); + canvas->drawBitmapRect(bitmap, &srcR, dstR, &paint); + + startAnimation(); + +#ifdef TRACE_SUBSAMPLED_BITMAPS + if (bitmap.width() != image->origWidth() || + bitmap.height() != image->origHeight()) { + SkDebugf("--- BitmapImage::draw [%d %d] orig [%d %d]\n", + bitmap.width(), bitmap.height(), + image->origWidth(), image->origHeight()); + } +#endif +} + +void BitmapImage::setURL(const String& str) +{ + m_source.setURL(str); +} + +/////////////////////////////////////////////////////////////////////////////// + +void Image::drawPattern(GraphicsContext* ctxt, const FloatRect& tileRect, + const AffineTransform& patternTransform, + const FloatPoint& phase, CompositeOperator compositeOp, + const FloatRect& destRect) +{ + SkBitmapRef* image = this->nativeImageForCurrentFrame(); + if (!image) { // If it's too early we won't have an image yet. + return; + } + + // in case we get called with an incomplete bitmap + const SkBitmap& bitmap = image->bitmap(); + if (bitmap.getPixels() == NULL && bitmap.pixelRef() == NULL) { + return; + } + + SkRect dstR; + android_setrect(&dstR, destRect); + if (dstR.isEmpty()) { + return; + } + + SkCanvas* canvas = ctxt->platformContext()->mCanvas; + SkPaint paint; + + SkShader* shader = SkShader::CreateBitmapShader(bitmap, + SkShader::kRepeat_TileMode, + SkShader::kRepeat_TileMode); + paint.setShader(shader)->unref(); + // now paint is the only owner of shader + paint.setPorterDuffXfermode(android_convert_compositeOp(compositeOp)); + paint.setFilterBitmap(true); + + SkMatrix matrix(patternTransform); + + float scaleX = (float)image->origWidth() / bitmap.width(); + float scaleY = (float)image->origHeight() / bitmap.height(); + matrix.preScale(SkFloatToScalar(scaleX), SkFloatToScalar(scaleY)); + + matrix.postTranslate(SkFloatToScalar(phase.x()), + SkFloatToScalar(phase.y())); + shader->setLocalMatrix(matrix); + canvas->drawRect(dstR, paint); + +#ifdef TRACE_SUBSAMPLED_BITMAPS + if (bitmap.width() != image->origWidth() || + bitmap.height() != image->origHeight()) { + SkDebugf("--- Image::drawPattern [%d %d] orig [%d %d] dst [%g %g]\n", + bitmap.width(), bitmap.height(), + image->origWidth(), image->origHeight(), + SkScalarToFloat(dstR.width()), SkScalarToFloat(dstR.height())); + } +#endif +} + +// missingImage, textAreaResizeCorner +Image* Image::loadPlatformResource(const char *name) +{ + if (NULL == gGlobalAssetMgr) { + gGlobalAssetMgr = new android::AssetManager(); + gGlobalAssetMgr->addDefaultAssets(); + } + + SkString path("webkit/"); + path.append(name); + path.append(".png"); + + android::Asset* a = gGlobalAssetMgr->open(path.c_str(), + android::Asset::ACCESS_BUFFER); + if (a == NULL) { + SkDebugf("---------------- failed to open image asset %s\n", name); + return NULL; + } + + Image* image = new BitmapImage; + RefPtr<SharedBuffer> buffer = + new SharedBuffer((const char*)a->getBuffer(false), a->getLength()); + image->setData(buffer, true); + delete a; + return image; +} + +} |