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-rw-r--r--WebCore/platform/graphics/skia/ImageBufferSkia.cpp338
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diff --git a/WebCore/platform/graphics/skia/ImageBufferSkia.cpp b/WebCore/platform/graphics/skia/ImageBufferSkia.cpp
deleted file mode 100644
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--- a/WebCore/platform/graphics/skia/ImageBufferSkia.cpp
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-/*
- * Copyright (c) 2008, Google Inc. All rights reserved.
- * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
- * Copyright (C) 2010 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
- *
- * 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.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "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.
- */
-
-#include "config.h"
-#include "ImageBuffer.h"
-
-#include "Base64.h"
-#include "BitmapImage.h"
-#include "BitmapImageSingleFrameSkia.h"
-#include "DrawingBuffer.h"
-#include "GLES2Canvas.h"
-#include "GraphicsContext.h"
-#include "ImageData.h"
-#include "JPEGImageEncoder.h"
-#include "MIMETypeRegistry.h"
-#include "PNGImageEncoder.h"
-#include "PlatformContextSkia.h"
-#include "SkColorPriv.h"
-#include "SkiaUtils.h"
-
-#include <wtf/text/StringConcatenate.h>
-
-using namespace std;
-
-namespace WebCore {
-
-// We pass a technically-uninitialized canvas to the platform context here since
-// the canvas initialization completes in ImageBuffer::ImageBuffer. But
-// PlatformContext doesn't actually need to use the object, and this makes all
-// the ownership easier to manage.
-ImageBufferData::ImageBufferData(const IntSize& size)
- : m_platformContext(0) // Canvas is set in ImageBuffer constructor.
-{
-}
-
-ImageBuffer::ImageBuffer(const IntSize& size, ColorSpace, RenderingMode, bool& success)
- : m_data(size)
- , m_size(size)
-{
- if (!m_data.m_canvas.initialize(size.width(), size.height(), false)) {
- success = false;
- return;
- }
-
- m_data.m_platformContext.setCanvas(&m_data.m_canvas);
- m_context.set(new GraphicsContext(&m_data.m_platformContext));
- m_context->platformContext()->setDrawingToImageBuffer(true);
-
- // Make the background transparent. It would be nice if this wasn't
- // required, but the canvas is currently filled with the magic transparency
- // color. Can we have another way to manage this?
- m_data.m_canvas.drawARGB(0, 0, 0, 0, SkXfermode::kClear_Mode);
- success = true;
-}
-
-ImageBuffer::~ImageBuffer()
-{
-}
-
-GraphicsContext* ImageBuffer::context() const
-{
- return m_context.get();
-}
-
-bool ImageBuffer::drawsUsingCopy() const
-{
- return false;
-}
-
-PassRefPtr<Image> ImageBuffer::copyImage() const
-{
- m_context->platformContext()->syncSoftwareCanvas();
- return BitmapImageSingleFrameSkia::create(*m_data.m_platformContext.bitmap(), true);
-}
-
-void ImageBuffer::clip(GraphicsContext* context, const FloatRect& rect) const
-{
- context->platformContext()->beginLayerClippedToImage(rect, this);
-}
-
-void ImageBuffer::draw(GraphicsContext* context, ColorSpace styleColorSpace, const FloatRect& destRect, const FloatRect& srcRect,
- CompositeOperator op, bool useLowQualityScale)
-{
- if (m_data.m_platformContext.useGPU() && context->platformContext()->useGPU()) {
- if (context->platformContext()->canAccelerate()) {
- DrawingBuffer* sourceDrawingBuffer = m_data.m_platformContext.gpuCanvas()->drawingBuffer();
- unsigned sourceTexture = static_cast<unsigned>(sourceDrawingBuffer->platformColorBuffer());
- FloatRect destRectFlipped(destRect);
- destRectFlipped.setY(destRect.y() + destRect.height());
- destRectFlipped.setHeight(-destRect.height());
- context->platformContext()->prepareForHardwareDraw();
- context->platformContext()->gpuCanvas()->drawTexturedRect(sourceTexture, m_size, srcRect, destRectFlipped, styleColorSpace, op);
- return;
- }
- m_data.m_platformContext.syncSoftwareCanvas();
- }
-
- RefPtr<Image> image = BitmapImageSingleFrameSkia::create(*m_data.m_platformContext.bitmap(), context == m_context);
- context->drawImage(image.get(), styleColorSpace, destRect, srcRect, op, useLowQualityScale);
-}
-
-void ImageBuffer::drawPattern(GraphicsContext* context, const FloatRect& srcRect, const AffineTransform& patternTransform,
- const FloatPoint& phase, ColorSpace styleColorSpace, CompositeOperator op, const FloatRect& destRect)
-{
- RefPtr<Image> image = BitmapImageSingleFrameSkia::create(*m_data.m_platformContext.bitmap(), context == m_context);
- image->drawPattern(context, srcRect, patternTransform, phase, styleColorSpace, op, destRect);
-}
-
-void ImageBuffer::platformTransformColorSpace(const Vector<int>& lookUpTable)
-{
- const SkBitmap& bitmap = *context()->platformContext()->bitmap();
- if (bitmap.isNull())
- return;
-
- ASSERT(bitmap.config() == SkBitmap::kARGB_8888_Config);
- SkAutoLockPixels bitmapLock(bitmap);
- for (int y = 0; y < m_size.height(); ++y) {
- uint32_t* srcRow = bitmap.getAddr32(0, y);
- for (int x = 0; x < m_size.width(); ++x) {
- SkColor color = SkPMColorToColor(srcRow[x]);
- srcRow[x] = SkPreMultiplyARGB(SkColorGetA(color),
- lookUpTable[SkColorGetR(color)],
- lookUpTable[SkColorGetG(color)],
- lookUpTable[SkColorGetB(color)]);
- }
- }
-}
-
-template <Multiply multiplied>
-PassRefPtr<ImageData> getImageData(const IntRect& rect, const SkBitmap& bitmap,
- const IntSize& size)
-{
- RefPtr<ImageData> result = ImageData::create(rect.width(), rect.height());
-
- if (bitmap.config() == SkBitmap::kNo_Config) {
- // This is an empty SkBitmap that could not be configured.
- ASSERT(!size.width() || !size.height());
- return result;
- }
-
- unsigned char* data = result->data()->data()->data();
-
- if (rect.x() < 0 || rect.y() < 0 ||
- (rect.x() + rect.width()) > size.width() ||
- (rect.y() + rect.height()) > size.height())
- memset(data, 0, result->data()->length());
-
- int originX = rect.x();
- int destX = 0;
- if (originX < 0) {
- destX = -originX;
- originX = 0;
- }
- int endX = rect.x() + rect.width();
- if (endX > size.width())
- endX = size.width();
- int numColumns = endX - originX;
-
- if (numColumns <= 0)
- return result;
-
- int originY = rect.y();
- int destY = 0;
- if (originY < 0) {
- destY = -originY;
- originY = 0;
- }
- int endY = rect.y() + rect.height();
- if (endY > size.height())
- endY = size.height();
- int numRows = endY - originY;
-
- if (numRows <= 0)
- return result;
-
- ASSERT(bitmap.config() == SkBitmap::kARGB_8888_Config);
- SkAutoLockPixels bitmapLock(bitmap);
-
- unsigned destBytesPerRow = 4 * rect.width();
- unsigned char* destRow = data + destY * destBytesPerRow + destX * 4;
-
- for (int y = 0; y < numRows; ++y) {
- uint32_t* srcRow = bitmap.getAddr32(originX, originY + y);
- for (int x = 0; x < numColumns; ++x) {
- unsigned char* destPixel = &destRow[x * 4];
- if (multiplied == Unmultiplied) {
- SkColor color = srcRow[x];
- unsigned a = SkColorGetA(color);
- destPixel[0] = a ? SkColorGetR(color) * 255 / a : 0;
- destPixel[1] = a ? SkColorGetG(color) * 255 / a : 0;
- destPixel[2] = a ? SkColorGetB(color) * 255 / a : 0;
- destPixel[3] = a;
- } else {
- // Input and output are both pre-multiplied, we just need to re-arrange the
- // bytes from the bitmap format to RGBA.
- destPixel[0] = SkGetPackedR32(srcRow[x]);
- destPixel[1] = SkGetPackedG32(srcRow[x]);
- destPixel[2] = SkGetPackedB32(srcRow[x]);
- destPixel[3] = SkGetPackedA32(srcRow[x]);
- }
- }
- destRow += destBytesPerRow;
- }
-
- return result;
-}
-
-PassRefPtr<ImageData> ImageBuffer::getUnmultipliedImageData(const IntRect& rect) const
-{
- context()->platformContext()->syncSoftwareCanvas();
- return getImageData<Unmultiplied>(rect, *context()->platformContext()->bitmap(), m_size);
-}
-
-PassRefPtr<ImageData> ImageBuffer::getPremultipliedImageData(const IntRect& rect) const
-{
- context()->platformContext()->syncSoftwareCanvas();
- return getImageData<Premultiplied>(rect, *context()->platformContext()->bitmap(), m_size);
-}
-
-template <Multiply multiplied>
-void putImageData(ImageData*& source, const IntRect& sourceRect, const IntPoint& destPoint,
- const SkBitmap& bitmap, const IntSize& size)
-{
- ASSERT(sourceRect.width() > 0);
- ASSERT(sourceRect.height() > 0);
-
- int originX = sourceRect.x();
- int destX = destPoint.x() + sourceRect.x();
- ASSERT(destX >= 0);
- ASSERT(destX < size.width());
- ASSERT(originX >= 0);
- ASSERT(originX < sourceRect.right());
-
- int endX = destPoint.x() + sourceRect.right();
- ASSERT(endX <= size.width());
-
- int numColumns = endX - destX;
-
- int originY = sourceRect.y();
- int destY = destPoint.y() + sourceRect.y();
- ASSERT(destY >= 0);
- ASSERT(destY < size.height());
- ASSERT(originY >= 0);
- ASSERT(originY < sourceRect.bottom());
-
- int endY = destPoint.y() + sourceRect.bottom();
- ASSERT(endY <= size.height());
- int numRows = endY - destY;
-
- ASSERT(bitmap.config() == SkBitmap::kARGB_8888_Config);
- SkAutoLockPixels bitmapLock(bitmap);
-
- unsigned srcBytesPerRow = 4 * source->width();
-
- const unsigned char* srcRow = source->data()->data()->data() + originY * srcBytesPerRow + originX * 4;
-
- for (int y = 0; y < numRows; ++y) {
- uint32_t* destRow = bitmap.getAddr32(destX, destY + y);
- for (int x = 0; x < numColumns; ++x) {
- const unsigned char* srcPixel = &srcRow[x * 4];
- if (multiplied == Unmultiplied) {
- unsigned char alpha = srcPixel[3];
- unsigned char r = SkMulDiv255Ceiling(srcPixel[0], alpha);
- unsigned char g = SkMulDiv255Ceiling(srcPixel[1], alpha);
- unsigned char b = SkMulDiv255Ceiling(srcPixel[2], alpha);
- destRow[x] = SkPackARGB32(alpha, r, g, b);
- } else
- destRow[x] = SkPackARGB32(srcPixel[3], srcPixel[0],
- srcPixel[1], srcPixel[2]);
- }
- srcRow += srcBytesPerRow;
- }
-}
-
-void ImageBuffer::putUnmultipliedImageData(ImageData* source, const IntRect& sourceRect, const IntPoint& destPoint)
-{
- context()->platformContext()->prepareForSoftwareDraw();
- putImageData<Unmultiplied>(source, sourceRect, destPoint, *context()->platformContext()->bitmap(), m_size);
-}
-
-void ImageBuffer::putPremultipliedImageData(ImageData* source, const IntRect& sourceRect, const IntPoint& destPoint)
-{
- putImageData<Premultiplied>(source, sourceRect, destPoint, *context()->platformContext()->bitmap(), m_size);
-}
-
-String ImageBuffer::toDataURL(const String& mimeType, const double* quality) const
-{
- ASSERT(MIMETypeRegistry::isSupportedImageMIMETypeForEncoding(mimeType));
-
- Vector<unsigned char> encodedImage;
- if (mimeType == "image/jpeg") {
- int compressionQuality = JPEGImageEncoder::DefaultCompressionQuality;
- if (quality && *quality >= 0.0 && *quality <= 1.0)
- compressionQuality = static_cast<int>(*quality * 100 + 0.5);
- if (!JPEGImageEncoder::encode(*context()->platformContext()->bitmap(), compressionQuality, &encodedImage))
- return "data:,";
- } else {
- if (!PNGImageEncoder::encode(*context()->platformContext()->bitmap(), &encodedImage))
- return "data:,";
- ASSERT(mimeType == "image/png");
- }
-
- Vector<char> base64Data;
- base64Encode(*reinterpret_cast<Vector<char>*>(&encodedImage), base64Data);
-
- return makeString("data:", mimeType, ";base64,", base64Data);
-}
-
-} // namespace WebCore
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