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https://github.com/mozilla/gecko-dev.git
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731702eb1c
MozReview-Commit-ID: AM0OxyhLrzJ
360 lines
12 KiB
C++
360 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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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 "DrawTargetTiled.h"
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#include "Logging.h"
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#include "PathHelpers.h"
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using namespace std;
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namespace mozilla {
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namespace gfx {
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DrawTargetTiled::DrawTargetTiled()
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{
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}
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bool
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DrawTargetTiled::Init(const TileSet& aTiles)
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{
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if (!aTiles.mTileCount) {
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return false;
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}
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mTiles.reserve(aTiles.mTileCount);
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for (size_t i = 0; i < aTiles.mTileCount; ++i) {
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mTiles.push_back(TileInternal(aTiles.mTiles[i]));
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if (!aTiles.mTiles[i].mDrawTarget) {
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return false;
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}
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if (mTiles[0].mDrawTarget->GetFormat() != mTiles.back().mDrawTarget->GetFormat() ||
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mTiles[0].mDrawTarget->GetBackendType() != mTiles.back().mDrawTarget->GetBackendType()) {
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return false;
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}
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uint32_t newXMost = max(mRect.XMost(),
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mTiles[i].mTileOrigin.x + mTiles[i].mDrawTarget->GetSize().width);
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uint32_t newYMost = max(mRect.YMost(),
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mTiles[i].mTileOrigin.y + mTiles[i].mDrawTarget->GetSize().height);
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mRect.x = min(mRect.x, mTiles[i].mTileOrigin.x);
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mRect.y = min(mRect.y, mTiles[i].mTileOrigin.y);
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mRect.width = newXMost - mRect.x;
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mRect.height = newYMost - mRect.y;
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mTiles[i].mDrawTarget->SetTransform(Matrix::Translation(mTiles[i].mTileOrigin.x,
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mTiles[i].mTileOrigin.y));
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}
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mFormat = mTiles[0].mDrawTarget->GetFormat();
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SetPermitSubpixelAA(IsOpaque(mFormat));
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return true;
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}
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already_AddRefed<SourceSurface>
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DrawTargetTiled::Snapshot()
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{
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return MakeAndAddRef<SnapshotTiled>(mTiles, mRect);
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}
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void
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DrawTargetTiled::DetachAllSnapshots()
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{}
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// Skip the mClippedOut check since this is only used for Flush() which
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// should happen even if we're clipped.
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#define TILED_COMMAND(command) \
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void \
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DrawTargetTiled::command() \
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{ \
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for (size_t i = 0; i < mTiles.size(); i++) { \
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mTiles[i].mDrawTarget->command(); \
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} \
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}
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#define TILED_COMMAND1(command, type1) \
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void \
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DrawTargetTiled::command(type1 arg1) \
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{ \
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for (size_t i = 0; i < mTiles.size(); i++) { \
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if (!mTiles[i].mClippedOut) \
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mTiles[i].mDrawTarget->command(arg1); \
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} \
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}
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#define TILED_COMMAND3(command, type1, type2, type3) \
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void \
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DrawTargetTiled::command(type1 arg1, type2 arg2, type3 arg3) \
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{ \
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for (size_t i = 0; i < mTiles.size(); i++) { \
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if (!mTiles[i].mClippedOut) \
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mTiles[i].mDrawTarget->command(arg1, arg2, arg3); \
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} \
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}
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#define TILED_COMMAND4(command, type1, type2, type3, type4) \
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void \
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DrawTargetTiled::command(type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
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{ \
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for (size_t i = 0; i < mTiles.size(); i++) { \
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if (!mTiles[i].mClippedOut) \
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mTiles[i].mDrawTarget->command(arg1, arg2, arg3, arg4); \
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} \
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}
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#define TILED_COMMAND5(command, type1, type2, type3, type4, type5) \
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void \
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DrawTargetTiled::command(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) \
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{ \
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for (size_t i = 0; i < mTiles.size(); i++) { \
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if (!mTiles[i].mClippedOut) \
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mTiles[i].mDrawTarget->command(arg1, arg2, arg3, arg4, arg5); \
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} \
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}
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TILED_COMMAND(Flush)
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TILED_COMMAND4(DrawFilter, FilterNode*, const Rect&, const Point&, const DrawOptions&)
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TILED_COMMAND1(ClearRect, const Rect&)
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TILED_COMMAND4(MaskSurface, const Pattern&, SourceSurface*, Point, const DrawOptions&)
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TILED_COMMAND5(FillGlyphs, ScaledFont*, const GlyphBuffer&, const Pattern&, const DrawOptions&, const GlyphRenderingOptions*)
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TILED_COMMAND3(Mask, const Pattern&, const Pattern&, const DrawOptions&)
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void
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DrawTargetTiled::PushClip(const Path* aPath)
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{
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mClippedOutTilesStack.push_back(std::vector<uint32_t>());
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std::vector<uint32_t>& clippedTiles = mClippedOutTilesStack.back();
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Rect deviceRect = aPath->GetBounds(mTransform);
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for (size_t i = 0; i < mTiles.size(); i++) {
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if (!mTiles[i].mClippedOut) {
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if (deviceRect.Intersects(Rect(mTiles[i].mTileOrigin.x,
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mTiles[i].mTileOrigin.y,
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mTiles[i].mDrawTarget->GetSize().width,
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mTiles[i].mDrawTarget->GetSize().height))) {
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mTiles[i].mDrawTarget->PushClip(aPath);
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} else {
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mTiles[i].mClippedOut = true;
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clippedTiles.push_back(i);
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}
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}
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}
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}
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void
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DrawTargetTiled::PushClipRect(const Rect& aRect)
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{
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mClippedOutTilesStack.push_back(std::vector<uint32_t>());
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std::vector<uint32_t>& clippedTiles = mClippedOutTilesStack.back();
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Rect deviceRect = mTransform.TransformBounds(aRect);
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for (size_t i = 0; i < mTiles.size(); i++) {
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if (!mTiles[i].mClippedOut) {
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if (deviceRect.Intersects(Rect(mTiles[i].mTileOrigin.x,
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mTiles[i].mTileOrigin.y,
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mTiles[i].mDrawTarget->GetSize().width,
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mTiles[i].mDrawTarget->GetSize().height))) {
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mTiles[i].mDrawTarget->PushClipRect(aRect);
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} else {
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mTiles[i].mClippedOut = true;
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clippedTiles.push_back(i);
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}
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}
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}
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}
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void
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DrawTargetTiled::PopClip()
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{
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for (size_t i = 0; i < mTiles.size(); i++) {
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if (!mTiles[i].mClippedOut) {
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mTiles[i].mDrawTarget->PopClip();
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}
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}
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std::vector<uint32_t>& clippedTiles = mClippedOutTilesStack.back();
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for (size_t i = 0; i < clippedTiles.size(); i++) {
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mTiles[clippedTiles[i]].mClippedOut = false;
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}
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mClippedOutTilesStack.pop_back();
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}
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void
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DrawTargetTiled::CopySurface(SourceSurface *aSurface,
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const IntRect &aSourceRect,
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const IntPoint &aDestination)
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{
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for (size_t i = 0; i < mTiles.size(); i++) {
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IntPoint tileOrigin = mTiles[i].mTileOrigin;
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IntSize tileSize = mTiles[i].mDrawTarget->GetSize();
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if (!IntRect(aDestination, aSourceRect.Size()).Intersects(IntRect(tileOrigin, tileSize))) {
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continue;
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}
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// CopySurface ignores the transform, account for that here.
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mTiles[i].mDrawTarget->CopySurface(aSurface, aSourceRect, aDestination - tileOrigin);
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}
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}
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void
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DrawTargetTiled::SetTransform(const Matrix& aTransform)
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{
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for (size_t i = 0; i < mTiles.size(); i++) {
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Matrix mat = aTransform;
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mat.PostTranslate(Float(-mTiles[i].mTileOrigin.x), Float(-mTiles[i].mTileOrigin.y));
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mTiles[i].mDrawTarget->SetTransform(mat);
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}
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DrawTarget::SetTransform(aTransform);
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}
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void
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DrawTargetTiled::SetPermitSubpixelAA(bool aPermitSubpixelAA)
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{
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DrawTarget::SetPermitSubpixelAA(aPermitSubpixelAA);
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for (size_t i = 0; i < mTiles.size(); i++) {
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mTiles[i].mDrawTarget->SetPermitSubpixelAA(aPermitSubpixelAA);
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}
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}
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void
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DrawTargetTiled::DrawSurface(SourceSurface* aSurface, const Rect& aDest, const Rect& aSource, const DrawSurfaceOptions& aSurfaceOptions, const DrawOptions& aDrawOptions)
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{
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Rect deviceRect = mTransform.TransformBounds(aDest);
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for (size_t i = 0; i < mTiles.size(); i++) {
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if (!mTiles[i].mClippedOut &&
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deviceRect.Intersects(Rect(mTiles[i].mTileOrigin.x,
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mTiles[i].mTileOrigin.y,
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mTiles[i].mDrawTarget->GetSize().width,
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mTiles[i].mDrawTarget->GetSize().height))) {
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mTiles[i].mDrawTarget->DrawSurface(aSurface, aDest, aSource, aSurfaceOptions, aDrawOptions);
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}
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}
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}
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void
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DrawTargetTiled::FillRect(const Rect& aRect, const Pattern& aPattern, const DrawOptions& aDrawOptions)
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{
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Rect deviceRect = mTransform.TransformBounds(aRect);
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for (size_t i = 0; i < mTiles.size(); i++) {
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if (!mTiles[i].mClippedOut &&
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deviceRect.Intersects(Rect(mTiles[i].mTileOrigin.x,
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mTiles[i].mTileOrigin.y,
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mTiles[i].mDrawTarget->GetSize().width,
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mTiles[i].mDrawTarget->GetSize().height))) {
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mTiles[i].mDrawTarget->FillRect(aRect, aPattern, aDrawOptions);
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}
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}
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}
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void
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DrawTargetTiled::Stroke(const Path* aPath, const Pattern& aPattern, const StrokeOptions& aStrokeOptions, const DrawOptions& aDrawOptions)
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{
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// Approximate the stroke extents, since Path::GetStrokeExtents can be slow
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Rect deviceRect = aPath->GetBounds(mTransform);
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deviceRect.Inflate(MaxStrokeExtents(aStrokeOptions, mTransform));
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for (size_t i = 0; i < mTiles.size(); i++) {
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if (!mTiles[i].mClippedOut &&
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deviceRect.Intersects(Rect(mTiles[i].mTileOrigin.x,
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mTiles[i].mTileOrigin.y,
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mTiles[i].mDrawTarget->GetSize().width,
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mTiles[i].mDrawTarget->GetSize().height))) {
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mTiles[i].mDrawTarget->Stroke(aPath, aPattern, aStrokeOptions, aDrawOptions);
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}
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}
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}
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void
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DrawTargetTiled::StrokeRect(const Rect& aRect, const Pattern& aPattern, const StrokeOptions &aStrokeOptions, const DrawOptions& aDrawOptions)
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{
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Rect deviceRect = mTransform.TransformBounds(aRect);
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Margin strokeMargin = MaxStrokeExtents(aStrokeOptions, mTransform);
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Rect outerRect = deviceRect;
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outerRect.Inflate(strokeMargin);
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Rect innerRect;
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if (mTransform.IsRectilinear()) {
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// If rects are mapped to rects, we can compute the inner rect
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// of the stroked rect.
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innerRect = deviceRect;
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innerRect.Deflate(strokeMargin);
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}
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for (size_t i = 0; i < mTiles.size(); i++) {
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if (mTiles[i].mClippedOut) {
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continue;
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}
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Rect tileRect(mTiles[i].mTileOrigin.x,
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mTiles[i].mTileOrigin.y,
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mTiles[i].mDrawTarget->GetSize().width,
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mTiles[i].mDrawTarget->GetSize().height);
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if (outerRect.Intersects(tileRect) && !innerRect.Contains(tileRect)) {
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mTiles[i].mDrawTarget->StrokeRect(aRect, aPattern, aStrokeOptions, aDrawOptions);
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}
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}
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}
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void
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DrawTargetTiled::StrokeLine(const Point& aStart, const Point& aEnd, const Pattern& aPattern, const StrokeOptions &aStrokeOptions, const DrawOptions& aDrawOptions)
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{
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Rect lineBounds = Rect(aStart, Size()).UnionEdges(Rect(aEnd, Size()));
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Rect deviceRect = mTransform.TransformBounds(lineBounds);
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deviceRect.Inflate(MaxStrokeExtents(aStrokeOptions, mTransform));
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for (size_t i = 0; i < mTiles.size(); i++) {
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if (!mTiles[i].mClippedOut &&
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deviceRect.Intersects(Rect(mTiles[i].mTileOrigin.x,
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mTiles[i].mTileOrigin.y,
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mTiles[i].mDrawTarget->GetSize().width,
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mTiles[i].mDrawTarget->GetSize().height))) {
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mTiles[i].mDrawTarget->StrokeLine(aStart, aEnd, aPattern, aStrokeOptions, aDrawOptions);
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}
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}
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}
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void
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DrawTargetTiled::Fill(const Path* aPath, const Pattern& aPattern, const DrawOptions& aDrawOptions)
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{
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Rect deviceRect = aPath->GetBounds(mTransform);
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for (size_t i = 0; i < mTiles.size(); i++) {
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if (!mTiles[i].mClippedOut &&
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deviceRect.Intersects(Rect(mTiles[i].mTileOrigin.x,
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mTiles[i].mTileOrigin.y,
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mTiles[i].mDrawTarget->GetSize().width,
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mTiles[i].mDrawTarget->GetSize().height))) {
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mTiles[i].mDrawTarget->Fill(aPath, aPattern, aDrawOptions);
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}
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}
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}
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void
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DrawTargetTiled::PushLayer(bool aOpaque, Float aOpacity, SourceSurface* aMask,
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const Matrix& aMaskTransform, const IntRect& aBounds,
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bool aCopyBackground)
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{
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// XXX - not sure this is what we want or whether we want to continue drawing to a larger
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// intermediate surface, that would require tweaking the code in here a little though.
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for (size_t i = 0; i < mTiles.size(); i++) {
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if (!mTiles[i].mClippedOut) {
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IntRect bounds = aBounds;
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bounds.MoveBy(-mTiles[i].mTileOrigin);
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mTiles[i].mDrawTarget->PushLayer(aOpaque, aOpacity, aMask, aMaskTransform, bounds, aCopyBackground);
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}
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}
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PushedLayer layer(GetPermitSubpixelAA());
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mPushedLayers.push_back(layer);
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SetPermitSubpixelAA(aOpaque);
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}
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void
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DrawTargetTiled::PopLayer()
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{
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// XXX - not sure this is what we want or whether we want to continue drawing to a larger
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// intermediate surface, that would require tweaking the code in here a little though.
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for (size_t i = 0; i < mTiles.size(); i++) {
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if (!mTiles[i].mClippedOut) {
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mTiles[i].mDrawTarget->PopLayer();
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}
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}
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MOZ_ASSERT(mPushedLayers.size());
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const PushedLayer& layer = mPushedLayers.back();
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SetPermitSubpixelAA(layer.mOldPermitSubpixelAA);
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}
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} // namespace gfx
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} // namespace mozilla
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