mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-10-17 07:15:46 +00:00
2416d881e2
There are no code changes, only #include changes. It was a fairly mechanical process: Search for all "AUTO_PROFILER_LABEL", and in each file, if only labels are used, convert "GeckoProfiler.h" into "ProfilerLabels.h" (or just add that last one where needed). In some files, there were also some marker calls but no other profiler-related calls, in these cases "GeckoProfiler.h" was replaced with both "ProfilerLabels.h" and "ProfilerMarkers.h", which still helps in reducing the use of the all-encompassing "GeckoProfiler.h". Differential Revision: https://phabricator.services.mozilla.com/D104588
891 lines
26 KiB
C++
891 lines
26 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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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 <math.h>
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#include "mozilla/Alignment.h"
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#include "cairo.h"
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#include "gfxContext.h"
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#include "gfxMatrix.h"
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#include "gfxUtils.h"
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#include "gfxASurface.h"
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#include "gfxPattern.h"
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#include "gfxPlatform.h"
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#include "gfx2DGlue.h"
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#include "mozilla/gfx/PathHelpers.h"
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#include "mozilla/gfx/DrawTargetTiled.h"
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#include "mozilla/ProfilerLabels.h"
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#include <algorithm>
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#include "TextDrawTarget.h"
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#if XP_WIN
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# include "gfxWindowsPlatform.h"
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# include "mozilla/gfx/DeviceManagerDx.h"
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#endif
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using namespace mozilla;
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using namespace mozilla::gfx;
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UserDataKey gfxContext::sDontUseAsSourceKey;
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#ifdef DEBUG
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# define CURRENTSTATE_CHANGED() CurrentState().mContentChanged = true;
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#else
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# define CURRENTSTATE_CHANGED()
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#endif
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PatternFromState::operator mozilla::gfx::Pattern&() {
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gfxContext::AzureState& state = mContext->CurrentState();
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if (state.pattern) {
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return *state.pattern->GetPattern(
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mContext->mDT,
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state.patternTransformChanged ? &state.patternTransform : nullptr);
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}
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mPattern = new (mColorPattern.addr()) ColorPattern(state.color);
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return *mPattern;
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}
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gfxContext::gfxContext(DrawTarget* aTarget, const Point& aDeviceOffset)
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: mPathIsRect(false), mTransformChanged(false), mDT(aTarget) {
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if (!aTarget) {
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gfxCriticalError() << "Don't create a gfxContext without a DrawTarget";
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}
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mStateStack.SetLength(1);
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CurrentState().drawTarget = mDT;
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CurrentState().deviceOffset = aDeviceOffset;
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mDT->SetTransform(GetDTTransform());
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}
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/* static */
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already_AddRefed<gfxContext> gfxContext::CreateOrNull(
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DrawTarget* aTarget, const mozilla::gfx::Point& aDeviceOffset) {
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if (!aTarget || !aTarget->IsValid()) {
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gfxCriticalNote << "Invalid target in gfxContext::CreateOrNull "
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<< hexa(aTarget);
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return nullptr;
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}
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RefPtr<gfxContext> result = new gfxContext(aTarget, aDeviceOffset);
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return result.forget();
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}
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/* static */
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already_AddRefed<gfxContext> gfxContext::CreatePreservingTransformOrNull(
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DrawTarget* aTarget) {
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if (!aTarget || !aTarget->IsValid()) {
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gfxCriticalNote
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<< "Invalid target in gfxContext::CreatePreservingTransformOrNull "
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<< hexa(aTarget);
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return nullptr;
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}
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Matrix transform = aTarget->GetTransform();
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RefPtr<gfxContext> result = new gfxContext(aTarget);
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result->SetMatrix(transform);
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return result.forget();
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}
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gfxContext::~gfxContext() {
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for (int i = mStateStack.Length() - 1; i >= 0; i--) {
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for (unsigned int c = 0; c < mStateStack[i].pushedClips.Length(); c++) {
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mStateStack[i].drawTarget->PopClip();
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}
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}
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}
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mozilla::layout::TextDrawTarget* gfxContext::GetTextDrawer() {
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if (mDT->GetBackendType() == BackendType::WEBRENDER_TEXT) {
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return static_cast<mozilla::layout::TextDrawTarget*>(&*mDT);
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}
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return nullptr;
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}
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void gfxContext::Save() {
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CurrentState().transform = mTransform;
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mStateStack.AppendElement(AzureState(CurrentState()));
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CurrentState().pushedClips.Clear();
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#ifdef DEBUG
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CurrentState().mContentChanged = false;
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#endif
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}
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void gfxContext::Restore() {
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#ifdef DEBUG
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// gfxContext::Restore is used to restore AzureState. We need to restore it
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// only if it was altered. The following APIs do change the content of
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// AzureState, a user should save the state before using them and restore it
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// after finishing painting:
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// 1. APIs to setup how to paint, such as SetColor()/SetAntialiasMode(). All
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// gfxContext SetXXXX public functions belong to this category, except
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// gfxContext::SetPath & gfxContext::SetMatrix.
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// 2. Clip functions, such as Clip() or PopClip(). You may call PopClip()
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// directly instead of using gfxContext::Save if the clip region is the
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// only thing that you altered in the target context.
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// 3. Function of setup transform matrix, such as Multiply() and
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// SetMatrix(). Using gfxContextMatrixAutoSaveRestore is more recommended
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// if transform data is the only thing that you are going to alter.
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//
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// You will hit the assertion message below if there is no above functions
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// been used between a pair of gfxContext::Save and gfxContext::Restore.
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// Considerate to remove that pair of Save/Restore if hitting that assertion.
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//
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// In the other hand, the following APIs do not alter the content of the
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// current AzureState, therefore, there is no need to save & restore
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// AzureState:
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// 1. constant member functions of gfxContext.
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// 2. Paint calls, such as Line()/Rectangle()/Fill(). Those APIs change the
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// content of drawing buffer, which is not part of AzureState.
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// 3. Path building APIs, such as SetPath()/MoveTo()/LineTo()/NewPath().
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// Surprisingly, path information is not stored in AzureState either.
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// Save current AzureState before using these type of APIs does nothing but
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// make performance worse.
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NS_ASSERTION(
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CurrentState().mContentChanged || CurrentState().pushedClips.Length() > 0,
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"The context of the current AzureState is not altered after "
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"Save() been called. you may consider to remove this pair of "
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"gfxContext::Save/Restore.");
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#endif
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for (unsigned int c = 0; c < CurrentState().pushedClips.Length(); c++) {
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mDT->PopClip();
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}
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mStateStack.RemoveLastElement();
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mDT = CurrentState().drawTarget;
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ChangeTransform(CurrentState().transform, false);
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}
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// drawing
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void gfxContext::NewPath() {
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mPath = nullptr;
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mPathBuilder = nullptr;
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mPathIsRect = false;
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mTransformChanged = false;
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}
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void gfxContext::ClosePath() {
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EnsurePathBuilder();
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mPathBuilder->Close();
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}
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already_AddRefed<Path> gfxContext::GetPath() {
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EnsurePath();
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RefPtr<Path> path(mPath);
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return path.forget();
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}
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void gfxContext::SetPath(Path* path) {
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MOZ_ASSERT(path->GetBackendType() == mDT->GetBackendType() ||
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path->GetBackendType() == BackendType::RECORDING ||
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(mDT->GetBackendType() == BackendType::DIRECT2D1_1 &&
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path->GetBackendType() == BackendType::DIRECT2D) ||
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path->GetBackendType() == BackendType::CAPTURE);
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mPath = path;
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mPathBuilder = nullptr;
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mPathIsRect = false;
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mTransformChanged = false;
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}
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void gfxContext::Fill() { Fill(PatternFromState(this)); }
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void gfxContext::Fill(const Pattern& aPattern) {
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AUTO_PROFILER_LABEL("gfxContext::Fill", GRAPHICS);
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AzureState& state = CurrentState();
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CompositionOp op = GetOp();
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if (mPathIsRect) {
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MOZ_ASSERT(!mTransformChanged);
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if (op == CompositionOp::OP_SOURCE) {
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// Emulate cairo operator source which is bound by mask!
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mDT->ClearRect(mRect);
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mDT->FillRect(mRect, aPattern, DrawOptions(1.0f));
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} else {
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mDT->FillRect(mRect, aPattern, DrawOptions(1.0f, op, state.aaMode));
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}
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} else {
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EnsurePath();
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mDT->Fill(mPath, aPattern, DrawOptions(1.0f, op, state.aaMode));
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}
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}
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void gfxContext::MoveTo(const gfxPoint& pt) {
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EnsurePathBuilder();
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mPathBuilder->MoveTo(ToPoint(pt));
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}
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void gfxContext::LineTo(const gfxPoint& pt) {
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EnsurePathBuilder();
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mPathBuilder->LineTo(ToPoint(pt));
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}
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void gfxContext::Line(const gfxPoint& start, const gfxPoint& end) {
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EnsurePathBuilder();
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mPathBuilder->MoveTo(ToPoint(start));
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mPathBuilder->LineTo(ToPoint(end));
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}
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// XXX snapToPixels is only valid when snapping for filled
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// rectangles and for even-width stroked rectangles.
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// For odd-width stroked rectangles, we need to offset x/y by
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// 0.5...
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void gfxContext::Rectangle(const gfxRect& rect, bool snapToPixels) {
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Rect rec = ToRect(rect);
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if (snapToPixels) {
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gfxRect newRect(rect);
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if (UserToDevicePixelSnapped(newRect, true)) {
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gfxMatrix mat = ThebesMatrix(mTransform);
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if (mat.Invert()) {
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// We need the user space rect.
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rec = ToRect(mat.TransformBounds(newRect));
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} else {
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rec = Rect();
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}
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}
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}
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if (!mPathBuilder && !mPathIsRect) {
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mPathIsRect = true;
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mRect = rec;
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return;
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}
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EnsurePathBuilder();
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mPathBuilder->MoveTo(rec.TopLeft());
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mPathBuilder->LineTo(rec.TopRight());
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mPathBuilder->LineTo(rec.BottomRight());
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mPathBuilder->LineTo(rec.BottomLeft());
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mPathBuilder->Close();
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}
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void gfxContext::SnappedClip(const gfxRect& rect) {
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Rect rec = ToRect(rect);
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gfxRect newRect(rect);
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if (UserToDevicePixelSnapped(newRect, true)) {
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gfxMatrix mat = ThebesMatrix(mTransform);
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if (mat.Invert()) {
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// We need the user space rect.
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rec = ToRect(mat.TransformBounds(newRect));
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} else {
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rec = Rect();
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}
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}
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Clip(rec);
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}
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// transform stuff
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void gfxContext::Multiply(const gfxMatrix& matrix) {
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Multiply(ToMatrix(matrix));
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}
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// transform stuff
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void gfxContext::Multiply(const Matrix& matrix) {
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CURRENTSTATE_CHANGED()
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ChangeTransform(matrix * mTransform);
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}
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void gfxContext::SetMatrix(const gfx::Matrix& matrix) {
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CURRENTSTATE_CHANGED()
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ChangeTransform(matrix);
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}
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void gfxContext::SetMatrixDouble(const gfxMatrix& matrix) {
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SetMatrix(ToMatrix(matrix));
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}
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gfx::Matrix gfxContext::CurrentMatrix() const { return mTransform; }
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gfxMatrix gfxContext::CurrentMatrixDouble() const {
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return ThebesMatrix(CurrentMatrix());
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}
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gfxPoint gfxContext::DeviceToUser(const gfxPoint& point) const {
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return ThebesPoint(mTransform.Inverse().TransformPoint(ToPoint(point)));
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}
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Size gfxContext::DeviceToUser(const Size& size) const {
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return mTransform.Inverse().TransformSize(size);
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}
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gfxRect gfxContext::DeviceToUser(const gfxRect& rect) const {
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return ThebesRect(mTransform.Inverse().TransformBounds(ToRect(rect)));
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}
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gfxPoint gfxContext::UserToDevice(const gfxPoint& point) const {
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return ThebesPoint(mTransform.TransformPoint(ToPoint(point)));
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}
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Size gfxContext::UserToDevice(const Size& size) const {
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const Matrix& matrix = mTransform;
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Size newSize;
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newSize.width = size.width * matrix._11 + size.height * matrix._12;
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newSize.height = size.width * matrix._21 + size.height * matrix._22;
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return newSize;
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}
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gfxRect gfxContext::UserToDevice(const gfxRect& rect) const {
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const Matrix& matrix = mTransform;
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return ThebesRect(matrix.TransformBounds(ToRect(rect)));
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}
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bool gfxContext::UserToDevicePixelSnapped(gfxRect& rect,
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bool ignoreScale) const {
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if (mDT->GetUserData(&sDisablePixelSnapping)) return false;
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// if we're not at 1.0 scale, don't snap, unless we're
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// ignoring the scale. If we're not -just- a scale,
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// never snap.
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const gfxFloat epsilon = 0.0000001;
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#define WITHIN_E(a, b) (fabs((a) - (b)) < epsilon)
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Matrix mat = mTransform;
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if (!ignoreScale && (!WITHIN_E(mat._11, 1.0) || !WITHIN_E(mat._22, 1.0) ||
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!WITHIN_E(mat._12, 0.0) || !WITHIN_E(mat._21, 0.0)))
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return false;
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#undef WITHIN_E
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gfxPoint p1 = UserToDevice(rect.TopLeft());
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gfxPoint p2 = UserToDevice(rect.TopRight());
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gfxPoint p3 = UserToDevice(rect.BottomRight());
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// Check that the rectangle is axis-aligned. For an axis-aligned rectangle,
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// two opposite corners define the entire rectangle. So check if
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// the axis-aligned rectangle with opposite corners p1 and p3
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// define an axis-aligned rectangle whose other corners are p2 and p4.
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// We actually only need to check one of p2 and p4, since an affine
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// transform maps parallelograms to parallelograms.
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if (p2 == gfxPoint(p1.x, p3.y) || p2 == gfxPoint(p3.x, p1.y)) {
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p1.Round();
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p3.Round();
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rect.MoveTo(gfxPoint(std::min(p1.x, p3.x), std::min(p1.y, p3.y)));
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rect.SizeTo(gfxSize(std::max(p1.x, p3.x) - rect.X(),
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std::max(p1.y, p3.y) - rect.Y()));
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return true;
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}
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return false;
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}
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bool gfxContext::UserToDevicePixelSnapped(gfxPoint& pt,
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bool ignoreScale) const {
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if (mDT->GetUserData(&sDisablePixelSnapping)) return false;
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// if we're not at 1.0 scale, don't snap, unless we're
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// ignoring the scale. If we're not -just- a scale,
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// never snap.
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const gfxFloat epsilon = 0.0000001;
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#define WITHIN_E(a, b) (fabs((a) - (b)) < epsilon)
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Matrix mat = mTransform;
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if (!ignoreScale && (!WITHIN_E(mat._11, 1.0) || !WITHIN_E(mat._22, 1.0) ||
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!WITHIN_E(mat._12, 0.0) || !WITHIN_E(mat._21, 0.0)))
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return false;
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#undef WITHIN_E
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pt = UserToDevice(pt);
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pt.Round();
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return true;
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}
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void gfxContext::SetAntialiasMode(AntialiasMode mode) {
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CURRENTSTATE_CHANGED()
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CurrentState().aaMode = mode;
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}
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AntialiasMode gfxContext::CurrentAntialiasMode() const {
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return CurrentState().aaMode;
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}
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void gfxContext::SetDash(const Float* dashes, int ndash, Float offset) {
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CURRENTSTATE_CHANGED()
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AzureState& state = CurrentState();
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state.dashPattern.SetLength(ndash);
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for (int i = 0; i < ndash; i++) {
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state.dashPattern[i] = dashes[i];
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}
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state.strokeOptions.mDashLength = ndash;
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state.strokeOptions.mDashOffset = offset;
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state.strokeOptions.mDashPattern =
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ndash ? state.dashPattern.Elements() : nullptr;
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}
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bool gfxContext::CurrentDash(FallibleTArray<Float>& dashes,
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Float* offset) const {
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const AzureState& state = CurrentState();
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int count = state.strokeOptions.mDashLength;
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if (count <= 0 || !dashes.Assign(state.dashPattern, fallible)) {
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return false;
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}
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*offset = state.strokeOptions.mDashOffset;
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return true;
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}
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void gfxContext::SetLineWidth(Float width) {
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CurrentState().strokeOptions.mLineWidth = width;
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}
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Float gfxContext::CurrentLineWidth() const {
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return CurrentState().strokeOptions.mLineWidth;
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}
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void gfxContext::SetOp(CompositionOp aOp) {
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CURRENTSTATE_CHANGED()
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CurrentState().op = aOp;
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}
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CompositionOp gfxContext::CurrentOp() const { return CurrentState().op; }
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void gfxContext::SetLineCap(CapStyle cap) {
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CURRENTSTATE_CHANGED()
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CurrentState().strokeOptions.mLineCap = cap;
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}
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CapStyle gfxContext::CurrentLineCap() const {
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return CurrentState().strokeOptions.mLineCap;
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}
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void gfxContext::SetLineJoin(JoinStyle join) {
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CURRENTSTATE_CHANGED()
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CurrentState().strokeOptions.mLineJoin = join;
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}
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JoinStyle gfxContext::CurrentLineJoin() const {
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return CurrentState().strokeOptions.mLineJoin;
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}
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void gfxContext::SetMiterLimit(Float limit) {
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CURRENTSTATE_CHANGED()
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CurrentState().strokeOptions.mMiterLimit = limit;
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}
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Float gfxContext::CurrentMiterLimit() const {
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return CurrentState().strokeOptions.mMiterLimit;
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}
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// clipping
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void gfxContext::Clip(const Rect& rect) {
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AzureState::PushedClip clip = {nullptr, rect, mTransform};
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CurrentState().pushedClips.AppendElement(clip);
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mDT->PushClipRect(rect);
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NewPath();
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}
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void gfxContext::Clip(const gfxRect& rect) { Clip(ToRect(rect)); }
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void gfxContext::Clip(Path* aPath) {
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mDT->PushClip(aPath);
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|
AzureState::PushedClip clip = {aPath, Rect(), mTransform};
|
|
CurrentState().pushedClips.AppendElement(clip);
|
|
}
|
|
|
|
void gfxContext::Clip() {
|
|
if (mPathIsRect) {
|
|
MOZ_ASSERT(!mTransformChanged);
|
|
|
|
AzureState::PushedClip clip = {nullptr, mRect, mTransform};
|
|
CurrentState().pushedClips.AppendElement(clip);
|
|
mDT->PushClipRect(mRect);
|
|
} else {
|
|
EnsurePath();
|
|
mDT->PushClip(mPath);
|
|
AzureState::PushedClip clip = {mPath, Rect(), mTransform};
|
|
CurrentState().pushedClips.AppendElement(clip);
|
|
}
|
|
}
|
|
|
|
void gfxContext::PopClip() {
|
|
MOZ_ASSERT(CurrentState().pushedClips.Length() > 0);
|
|
|
|
CurrentState().pushedClips.RemoveLastElement();
|
|
mDT->PopClip();
|
|
}
|
|
|
|
gfxRect gfxContext::GetClipExtents(ClipExtentsSpace aSpace) const {
|
|
Rect rect = GetAzureDeviceSpaceClipBounds();
|
|
|
|
if (rect.IsZeroArea()) {
|
|
return gfxRect(0, 0, 0, 0);
|
|
}
|
|
|
|
if (aSpace == eUserSpace) {
|
|
Matrix mat = mTransform;
|
|
mat.Invert();
|
|
rect = mat.TransformBounds(rect);
|
|
}
|
|
|
|
return ThebesRect(rect);
|
|
}
|
|
|
|
bool gfxContext::ExportClip(ClipExporter& aExporter) {
|
|
for (unsigned int i = 0; i < mStateStack.Length(); i++) {
|
|
for (unsigned int c = 0; c < mStateStack[i].pushedClips.Length(); c++) {
|
|
AzureState::PushedClip& clip = mStateStack[i].pushedClips[c];
|
|
gfx::Matrix transform = clip.transform;
|
|
transform.PostTranslate(-GetDeviceOffset());
|
|
|
|
aExporter.BeginClip(transform);
|
|
if (clip.path) {
|
|
clip.path->StreamToSink(&aExporter);
|
|
} else {
|
|
aExporter.MoveTo(clip.rect.TopLeft());
|
|
aExporter.LineTo(clip.rect.TopRight());
|
|
aExporter.LineTo(clip.rect.BottomRight());
|
|
aExporter.LineTo(clip.rect.BottomLeft());
|
|
aExporter.Close();
|
|
}
|
|
aExporter.EndClip();
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool gfxContext::ClipContainsRect(const gfxRect& aRect) {
|
|
// Since we always return false when the clip list contains a
|
|
// non-rectangular clip or a non-rectilinear transform, our 'total' clip
|
|
// is always a rectangle if we hit the end of this function.
|
|
Rect clipBounds(0, 0, Float(mDT->GetSize().width),
|
|
Float(mDT->GetSize().height));
|
|
|
|
for (unsigned int i = 0; i < mStateStack.Length(); i++) {
|
|
for (unsigned int c = 0; c < mStateStack[i].pushedClips.Length(); c++) {
|
|
AzureState::PushedClip& clip = mStateStack[i].pushedClips[c];
|
|
if (clip.path || !clip.transform.IsRectilinear()) {
|
|
// Cairo behavior is we return false if the clip contains a non-
|
|
// rectangle.
|
|
return false;
|
|
} else {
|
|
Rect clipRect = mTransform.TransformBounds(clip.rect);
|
|
|
|
clipBounds.IntersectRect(clipBounds, clipRect);
|
|
}
|
|
}
|
|
}
|
|
|
|
return clipBounds.Contains(ToRect(aRect));
|
|
}
|
|
|
|
// rendering sources
|
|
|
|
void gfxContext::SetColor(const sRGBColor& aColor) {
|
|
CURRENTSTATE_CHANGED()
|
|
CurrentState().pattern = nullptr;
|
|
CurrentState().color = ToDeviceColor(aColor);
|
|
}
|
|
|
|
void gfxContext::SetDeviceColor(const DeviceColor& aColor) {
|
|
CURRENTSTATE_CHANGED()
|
|
CurrentState().pattern = nullptr;
|
|
CurrentState().color = aColor;
|
|
}
|
|
|
|
bool gfxContext::GetDeviceColor(DeviceColor& aColorOut) {
|
|
if (CurrentState().pattern) {
|
|
return CurrentState().pattern->GetSolidColor(aColorOut);
|
|
}
|
|
|
|
aColorOut = CurrentState().color;
|
|
return true;
|
|
}
|
|
|
|
void gfxContext::SetPattern(gfxPattern* pattern) {
|
|
CURRENTSTATE_CHANGED()
|
|
CurrentState().patternTransformChanged = false;
|
|
CurrentState().pattern = pattern;
|
|
}
|
|
|
|
already_AddRefed<gfxPattern> gfxContext::GetPattern() {
|
|
RefPtr<gfxPattern> pat;
|
|
|
|
AzureState& state = CurrentState();
|
|
if (state.pattern) {
|
|
pat = state.pattern;
|
|
} else {
|
|
pat = new gfxPattern(state.color);
|
|
}
|
|
return pat.forget();
|
|
}
|
|
|
|
// masking
|
|
void gfxContext::Mask(SourceSurface* aSurface, Float aAlpha,
|
|
const Matrix& aTransform) {
|
|
Matrix old = mTransform;
|
|
Matrix mat = aTransform * mTransform;
|
|
|
|
ChangeTransform(mat);
|
|
mDT->MaskSurface(
|
|
PatternFromState(this), aSurface, Point(),
|
|
DrawOptions(aAlpha, CurrentState().op, CurrentState().aaMode));
|
|
ChangeTransform(old);
|
|
}
|
|
|
|
void gfxContext::Mask(SourceSurface* surface, float alpha,
|
|
const Point& offset) {
|
|
// We clip here to bind to the mask surface bounds, see above.
|
|
mDT->MaskSurface(
|
|
PatternFromState(this), surface, offset,
|
|
DrawOptions(alpha, CurrentState().op, CurrentState().aaMode));
|
|
}
|
|
|
|
void gfxContext::Paint(Float alpha) {
|
|
AUTO_PROFILER_LABEL("gfxContext::Paint", GRAPHICS);
|
|
|
|
Matrix mat = mDT->GetTransform();
|
|
mat.Invert();
|
|
Rect paintRect = mat.TransformBounds(Rect(Point(0, 0), Size(mDT->GetSize())));
|
|
|
|
mDT->FillRect(paintRect, PatternFromState(this), DrawOptions(alpha, GetOp()));
|
|
}
|
|
|
|
void gfxContext::PushGroupForBlendBack(gfxContentType content, Float aOpacity,
|
|
SourceSurface* aMask,
|
|
const Matrix& aMaskTransform) {
|
|
mDT->PushLayer(content == gfxContentType::COLOR, aOpacity, aMask,
|
|
aMaskTransform);
|
|
}
|
|
|
|
void gfxContext::PushGroupAndCopyBackground(gfxContentType content,
|
|
Float aOpacity,
|
|
SourceSurface* aMask,
|
|
const Matrix& aMaskTransform) {
|
|
IntRect clipExtents;
|
|
if (mDT->GetFormat() != SurfaceFormat::B8G8R8X8) {
|
|
gfxRect clipRect = GetClipExtents(gfxContext::eDeviceSpace);
|
|
clipRect.RoundOut();
|
|
clipExtents = IntRect::Truncate(clipRect.X(), clipRect.Y(),
|
|
clipRect.Width(), clipRect.Height());
|
|
}
|
|
bool pushOpaqueWithCopiedBG = (mDT->GetFormat() == SurfaceFormat::B8G8R8X8 ||
|
|
mDT->GetOpaqueRect().Contains(clipExtents)) &&
|
|
!mDT->GetUserData(&sDontUseAsSourceKey);
|
|
|
|
if (pushOpaqueWithCopiedBG) {
|
|
mDT->PushLayer(true, aOpacity, aMask, aMaskTransform, IntRect(), true);
|
|
} else {
|
|
mDT->PushLayer(content == gfxContentType::COLOR, aOpacity, aMask,
|
|
aMaskTransform, IntRect(), false);
|
|
}
|
|
}
|
|
|
|
void gfxContext::PopGroupAndBlend() { mDT->PopLayer(); }
|
|
|
|
#ifdef MOZ_DUMP_PAINTING
|
|
void gfxContext::WriteAsPNG(const char* aFile) {
|
|
gfxUtils::WriteAsPNG(mDT, aFile);
|
|
}
|
|
|
|
void gfxContext::DumpAsDataURI() { gfxUtils::DumpAsDataURI(mDT); }
|
|
|
|
void gfxContext::CopyAsDataURI() { gfxUtils::CopyAsDataURI(mDT); }
|
|
#endif
|
|
|
|
void gfxContext::EnsurePath() {
|
|
if (mPathBuilder) {
|
|
mPath = mPathBuilder->Finish();
|
|
mPathBuilder = nullptr;
|
|
}
|
|
|
|
if (mPath) {
|
|
if (mTransformChanged) {
|
|
Matrix mat = mTransform;
|
|
mat.Invert();
|
|
mat = mPathTransform * mat;
|
|
mPathBuilder = mPath->TransformedCopyToBuilder(mat);
|
|
mPath = mPathBuilder->Finish();
|
|
mPathBuilder = nullptr;
|
|
|
|
mTransformChanged = false;
|
|
}
|
|
return;
|
|
}
|
|
|
|
EnsurePathBuilder();
|
|
mPath = mPathBuilder->Finish();
|
|
mPathBuilder = nullptr;
|
|
}
|
|
|
|
void gfxContext::EnsurePathBuilder() {
|
|
if (mPathBuilder && !mTransformChanged) {
|
|
return;
|
|
}
|
|
|
|
if (mPath) {
|
|
if (!mTransformChanged) {
|
|
mPathBuilder = mPath->CopyToBuilder();
|
|
mPath = nullptr;
|
|
} else {
|
|
Matrix invTransform = mTransform;
|
|
invTransform.Invert();
|
|
Matrix toNewUS = mPathTransform * invTransform;
|
|
mPathBuilder = mPath->TransformedCopyToBuilder(toNewUS);
|
|
}
|
|
return;
|
|
}
|
|
|
|
DebugOnly<PathBuilder*> oldPath = mPathBuilder.get();
|
|
|
|
if (!mPathBuilder) {
|
|
mPathBuilder = mDT->CreatePathBuilder(FillRule::FILL_WINDING);
|
|
|
|
if (mPathIsRect) {
|
|
mPathBuilder->MoveTo(mRect.TopLeft());
|
|
mPathBuilder->LineTo(mRect.TopRight());
|
|
mPathBuilder->LineTo(mRect.BottomRight());
|
|
mPathBuilder->LineTo(mRect.BottomLeft());
|
|
mPathBuilder->Close();
|
|
}
|
|
}
|
|
|
|
if (mTransformChanged) {
|
|
// This could be an else if since this should never happen when
|
|
// mPathBuilder is nullptr and mPath is nullptr. But this way we can
|
|
// assert if all the state is as expected.
|
|
MOZ_ASSERT(oldPath);
|
|
MOZ_ASSERT(!mPathIsRect);
|
|
|
|
Matrix invTransform = mTransform;
|
|
invTransform.Invert();
|
|
Matrix toNewUS = mPathTransform * invTransform;
|
|
|
|
RefPtr<Path> path = mPathBuilder->Finish();
|
|
if (!path) {
|
|
gfxCriticalError()
|
|
<< "gfxContext::EnsurePathBuilder failed in PathBuilder::Finish";
|
|
}
|
|
mPathBuilder = path->TransformedCopyToBuilder(toNewUS);
|
|
}
|
|
|
|
mPathIsRect = false;
|
|
}
|
|
|
|
CompositionOp gfxContext::GetOp() {
|
|
if (CurrentState().op != CompositionOp::OP_SOURCE) {
|
|
return CurrentState().op;
|
|
}
|
|
|
|
AzureState& state = CurrentState();
|
|
if (state.pattern) {
|
|
if (state.pattern->IsOpaque()) {
|
|
return CompositionOp::OP_OVER;
|
|
} else {
|
|
return CompositionOp::OP_SOURCE;
|
|
}
|
|
} else {
|
|
if (state.color.a > 0.999) {
|
|
return CompositionOp::OP_OVER;
|
|
} else {
|
|
return CompositionOp::OP_SOURCE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* SVG font code can change the transform after having set the pattern on the
|
|
* context. When the pattern is set it is in user space, if the transform is
|
|
* changed after doing so the pattern needs to be converted back into userspace.
|
|
* We just store the old pattern transform here so that we only do the work
|
|
* needed here if the pattern is actually used.
|
|
* We need to avoid doing this when this ChangeTransform comes from a restore,
|
|
* since the current pattern and the current transform are both part of the
|
|
* state we know the new CurrentState()'s values are valid. But if we assume
|
|
* a change they might become invalid since patternTransformChanged is part of
|
|
* the state and might be false for the restored AzureState.
|
|
*/
|
|
void gfxContext::ChangeTransform(const Matrix& aNewMatrix,
|
|
bool aUpdatePatternTransform) {
|
|
AzureState& state = CurrentState();
|
|
|
|
if (aUpdatePatternTransform && (state.pattern) &&
|
|
!state.patternTransformChanged) {
|
|
state.patternTransform = GetDTTransform();
|
|
state.patternTransformChanged = true;
|
|
}
|
|
|
|
if (mPathIsRect) {
|
|
Matrix invMatrix = aNewMatrix;
|
|
|
|
invMatrix.Invert();
|
|
|
|
Matrix toNewUS = mTransform * invMatrix;
|
|
|
|
if (toNewUS.IsRectilinear()) {
|
|
mRect = toNewUS.TransformBounds(mRect);
|
|
mRect.NudgeToIntegers();
|
|
} else {
|
|
mPathBuilder = mDT->CreatePathBuilder(FillRule::FILL_WINDING);
|
|
|
|
mPathBuilder->MoveTo(toNewUS.TransformPoint(mRect.TopLeft()));
|
|
mPathBuilder->LineTo(toNewUS.TransformPoint(mRect.TopRight()));
|
|
mPathBuilder->LineTo(toNewUS.TransformPoint(mRect.BottomRight()));
|
|
mPathBuilder->LineTo(toNewUS.TransformPoint(mRect.BottomLeft()));
|
|
mPathBuilder->Close();
|
|
|
|
mPathIsRect = false;
|
|
}
|
|
|
|
// No need to consider the transform changed now!
|
|
mTransformChanged = false;
|
|
} else if ((mPath || mPathBuilder) && !mTransformChanged) {
|
|
mTransformChanged = true;
|
|
mPathTransform = mTransform;
|
|
}
|
|
|
|
mTransform = aNewMatrix;
|
|
|
|
mDT->SetTransform(GetDTTransform());
|
|
}
|
|
|
|
Rect gfxContext::GetAzureDeviceSpaceClipBounds() const {
|
|
Rect rect(CurrentState().deviceOffset.x + Float(mDT->GetRect().x),
|
|
CurrentState().deviceOffset.y + Float(mDT->GetRect().y),
|
|
Float(mDT->GetSize().width), Float(mDT->GetSize().height));
|
|
for (unsigned int i = 0; i < mStateStack.Length(); i++) {
|
|
for (unsigned int c = 0; c < mStateStack[i].pushedClips.Length(); c++) {
|
|
const AzureState::PushedClip& clip = mStateStack[i].pushedClips[c];
|
|
if (clip.path) {
|
|
Rect bounds = clip.path->GetBounds(clip.transform);
|
|
rect.IntersectRect(rect, bounds);
|
|
} else {
|
|
rect.IntersectRect(rect, clip.transform.TransformBounds(clip.rect));
|
|
}
|
|
}
|
|
}
|
|
|
|
return rect;
|
|
}
|
|
|
|
Point gfxContext::GetDeviceOffset() const {
|
|
return CurrentState().deviceOffset;
|
|
}
|
|
|
|
void gfxContext::SetDeviceOffset(const Point& aOffset) {
|
|
CurrentState().deviceOffset = aOffset;
|
|
}
|
|
|
|
Matrix gfxContext::GetDTTransform() const {
|
|
Matrix mat = mTransform;
|
|
mat._31 -= CurrentState().deviceOffset.x;
|
|
mat._32 -= CurrentState().deviceOffset.y;
|
|
return mat;
|
|
}
|