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0f90257361
Generated by these regexes: find . -name '*.h' -o -name '*.cpp' -o -name '*.mm' | grep -v '\.hg' | grep -v '^\.\/obj' | xargs sed -i 's/gfx[A-Za-z0-9_]*Surface\:\:[a-z]*\(\(ImageFormat\|SurfaceType\|ContentType\|MemoryLocation\)[0-9A-Za-z_]*\)/gfx\1/g' find . -name '*.h' -o -name '*.cpp' -o -name '*.mm' | grep -v '\.hg' | grep -v '^\.\/obj' | xargs sed -i 's/gfx[A-Za-z0-9_]*Surface\:\:[a-z]*\(\(CONTENT_\|MEMORY_\)[0-9A-Za-z_]*\)/GFX_\1/g' find . -name '*.h' -o -name '*.cpp' -o -name '*.mm' | grep -v '\.hg' | grep -v '^\.\/obj' | xargs sed -i 's/\(^\|[^A-Za-z0-9_]\)\(CONTENT_COLOR\|CONTENT_ALPHA\|CONTENT_COLOR_ALPHA\|CONTENT_SENTINEL\|MEMORY_IN_PROCESS_HEAP\|MEMORY_IN_PROCESS_NONHEAP\|MEMORY_OUT_OF_PROCESS\)\($\|[^A-Za-z0-9_]\)/\1GFX_\2\3/g' find . -name '*.h' -o -name '*.cpp' -o -name '*.mm' | grep -v '\.hg' | grep -v '^\.\/obj' | xargs sed -i 's/\(^\|[^A-Za-z0-9_]\)\(ImageFormatARGB32\|ImageFormatRGB24\|ImageFormatA8\|ImageFormatA1\|ImageFormatRGB16_565\|ImageFormatUnknown\|SurfaceTypeImage\|SurfaceTypePDF\|SurfaceTypePS\|SurfaceTypeXlib\|SurfaceTypeXcb\|SurfaceTypeGlitz\|SurfaceTypeQuartz\|SurfaceTypeWin32\|SurfaceTypeBeOS\|SurfaceTypeDirectFB\|SurfaceTypeSVG\|SurfaceTypeOS2\|SurfaceTypeWin32Printing\|SurfaceTypeQuartzImage\|SurfaceTypeScript\|SurfaceTypeQPainter\|SurfaceTypeRecording\|SurfaceTypeVG\|SurfaceTypeGL\|SurfaceTypeDRM\|SurfaceTypeTee\|SurfaceTypeXML\|SurfaceTypeSkia\|SurfaceTypeSubsurface\|SurfaceTypeD2D\|SurfaceTypeMax\)\($\|[^A-Za-z0-9_]\)/\1gfx\2\3/g'
113 lines
3.9 KiB
C++
113 lines
3.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "gfxBlur.h"
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#include "mozilla/gfx/Blur.h"
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using namespace mozilla::gfx;
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gfxAlphaBoxBlur::gfxAlphaBoxBlur()
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: mBlur(nullptr)
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{
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}
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gfxAlphaBoxBlur::~gfxAlphaBoxBlur()
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{
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mContext = nullptr;
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mImageSurface = nullptr;
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delete mBlur;
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}
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gfxContext*
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gfxAlphaBoxBlur::Init(const gfxRect& aRect,
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const gfxIntSize& aSpreadRadius,
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const gfxIntSize& aBlurRadius,
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const gfxRect* aDirtyRect,
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const gfxRect* aSkipRect)
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{
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mozilla::gfx::Rect rect(Float(aRect.x), Float(aRect.y),
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Float(aRect.width), Float(aRect.height));
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IntSize spreadRadius(aSpreadRadius.width, aSpreadRadius.height);
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IntSize blurRadius(aBlurRadius.width, aBlurRadius.height);
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nsAutoPtr<mozilla::gfx::Rect> dirtyRect;
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if (aDirtyRect) {
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dirtyRect = new mozilla::gfx::Rect(Float(aDirtyRect->x),
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Float(aDirtyRect->y),
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Float(aDirtyRect->width),
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Float(aDirtyRect->height));
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}
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nsAutoPtr<mozilla::gfx::Rect> skipRect;
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if (aSkipRect) {
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skipRect = new mozilla::gfx::Rect(Float(aSkipRect->x),
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Float(aSkipRect->y),
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Float(aSkipRect->width),
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Float(aSkipRect->height));
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}
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mBlur = new AlphaBoxBlur(rect, spreadRadius, blurRadius, dirtyRect, skipRect);
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int32_t blurDataSize = mBlur->GetSurfaceAllocationSize();
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if (blurDataSize <= 0)
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return nullptr;
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IntSize size = mBlur->GetSize();
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// Make an alpha-only surface to draw on. We will play with the data after
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// everything is drawn to create a blur effect.
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mImageSurface = new gfxImageSurface(gfxIntSize(size.width, size.height),
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gfxImageFormatA8,
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mBlur->GetStride(),
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blurDataSize,
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true);
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if (mImageSurface->CairoStatus())
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return nullptr;
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IntRect irect = mBlur->GetRect();
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gfxPoint topleft(irect.TopLeft().x, irect.TopLeft().y);
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// Use a device offset so callers don't need to worry about translating
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// coordinates, they can draw as if this was part of the destination context
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// at the coordinates of rect.
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mImageSurface->SetDeviceOffset(-topleft);
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mContext = new gfxContext(mImageSurface);
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return mContext;
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}
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void
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gfxAlphaBoxBlur::Paint(gfxContext* aDestinationCtx, const gfxPoint& offset)
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{
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if (!mContext)
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return;
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mBlur->Blur(mImageSurface->Data());
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mozilla::gfx::Rect* dirtyrect = mBlur->GetDirtyRect();
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// Avoid a semi-expensive clip operation if we can, otherwise
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// clip to the dirty rect
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if (dirtyrect) {
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aDestinationCtx->Save();
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aDestinationCtx->NewPath();
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gfxRect dirty(dirtyrect->x, dirtyrect->y, dirtyrect->width, dirtyrect->height);
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gfxRect imageRect(offset - mImageSurface->GetDeviceOffset(), mImageSurface->GetSize());
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dirty.IntersectRect(dirty, imageRect);
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aDestinationCtx->Rectangle(dirty);
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aDestinationCtx->Clip();
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aDestinationCtx->Mask(mImageSurface, offset);
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aDestinationCtx->Restore();
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} else {
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aDestinationCtx->Mask(mImageSurface, offset);
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}
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}
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gfxIntSize gfxAlphaBoxBlur::CalculateBlurRadius(const gfxPoint& aStd)
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{
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mozilla::gfx::Point std(Float(aStd.x), Float(aStd.y));
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IntSize size = AlphaBoxBlur::CalculateBlurRadius(std);
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return gfxIntSize(size.width, size.height);
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}
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