mirror of
https://github.com/juce-framework/JUCE.git
synced 2026-01-10 23:44:24 +00:00
290 lines
9.2 KiB
C++
290 lines
9.2 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE framework.
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Copyright (c) Raw Material Software Limited
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JUCE is an open source framework subject to commercial or open source
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licensing.
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By downloading, installing, or using the JUCE framework, or combining the
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JUCE framework with any other source code, object code, content or any other
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copyrightable work, you agree to the terms of the JUCE End User Licence
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Agreement, and all incorporated terms including the JUCE Privacy Policy and
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the JUCE Website Terms of Service, as applicable, which will bind you. If you
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do not agree to the terms of these agreements, we will not license the JUCE
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framework to you, and you must discontinue the installation or download
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process and cease use of the JUCE framework.
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JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
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JUCE Privacy Policy: https://juce.com/juce-privacy-policy
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JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
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Or:
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You may also use this code under the terms of the AGPLv3:
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https://www.gnu.org/licenses/agpl-3.0.en.html
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THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
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WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
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MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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bool Direct2DGraphicsContext::Pimpl::prepare()
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{
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if (! deviceResources.has_value())
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deviceResources = Direct2DDeviceResources::create (getDeviceContext());
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return deviceResources.has_value();
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}
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void Direct2DGraphicsContext::Pimpl::teardown()
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{
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deviceResources.reset();
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}
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bool Direct2DGraphicsContext::Pimpl::checkPaintReady()
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{
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return deviceResources.has_value();
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}
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Direct2DGraphicsContext::Pimpl::Pimpl (Direct2DGraphicsContext& ownerIn)
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: owner (ownerIn)
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{
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directX->adapters.addListener (*this);
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}
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Direct2DGraphicsContext::Pimpl::~Pimpl()
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{
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directX->adapters.removeListener (*this);
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popAllSavedStates();
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}
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auto Direct2DGraphicsContext::Pimpl::startFrame() -> SavedState*
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{
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prepare();
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// Anything to paint?
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const auto paintAreas = getPaintAreas();
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const auto paintBounds = paintAreas.getBounds();
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if (! getFrameSize().intersects (paintBounds) || paintBounds.isEmpty() || paintAreas.isEmpty())
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return nullptr;
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// Is Direct2D ready to paint?
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if (! checkPaintReady())
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return nullptr;
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#if JUCE_DIRECT2D_METRICS
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owner.metrics->startFrame();
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#endif
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JUCE_TRACE_EVENT_INT_RECT_LIST (etw::startD2DFrame, etw::direct2dKeyword, owner.getFrameId(), paintAreas);
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const auto deviceContext = getDeviceContext();
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// Init device context transform
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resetTransform (deviceContext);
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// Start drawing
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deviceContext->SetTarget (getDeviceContextTarget());
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deviceContext->BeginDraw();
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// Init the save state stack and return the first saved state
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return pushFirstSavedState (paintBounds);
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}
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HRESULT Direct2DGraphicsContext::Pimpl::finishFrame()
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{
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// Fully pop the state stack
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popAllSavedStates();
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// Finish drawing
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// SetTarget(nullptr) so the device context doesn't hold a reference to the swap chain buffer
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HRESULT hr = S_OK;
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{
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JUCE_D2DMETRICS_SCOPED_ELAPSED_TIME (owner.metrics, endDrawDuration)
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JUCE_SCOPED_TRACE_EVENT_FRAME (etw::endDraw, etw::direct2dKeyword, owner.getFrameId());
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const auto deviceContext = getDeviceContext();
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hr = deviceContext->EndDraw();
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deviceContext->SetTarget (nullptr);
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}
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jassert (SUCCEEDED (hr));
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if (FAILED (hr))
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teardown();
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#if JUCE_DIRECT2D_METRICS
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owner.metrics->finishFrame();
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#endif
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return hr;
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}
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auto Direct2DGraphicsContext::Pimpl::getCurrentSavedState() const -> SavedState*
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{
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return ! savedClientStates.empty() ? savedClientStates.back().get() : nullptr;
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}
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auto Direct2DGraphicsContext::Pimpl::pushFirstSavedState (Rectangle<int> initialClipRegion) -> SavedState*
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{
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jassert (savedClientStates.empty());
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savedClientStates.push_back (std::make_unique<SavedState> (owner,
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initialClipRegion,
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getDeviceContext(),
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deviceResources->colourBrush,
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*deviceResources));
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return getCurrentSavedState();
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}
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auto Direct2DGraphicsContext::Pimpl::pushSavedState() -> SavedState*
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{
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jassert (! savedClientStates.empty());
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savedClientStates.push_back (std::make_unique<SavedState> (*savedClientStates.back()));
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return getCurrentSavedState();
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}
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auto Direct2DGraphicsContext::Pimpl::popSavedState() -> SavedState*
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{
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savedClientStates.back()->popLayers();
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savedClientStates.pop_back();
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return getCurrentSavedState();
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}
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void Direct2DGraphicsContext::Pimpl::popAllSavedStates()
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{
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while (! savedClientStates.empty())
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popSavedState();
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}
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void Direct2DGraphicsContext::Pimpl::setDeviceContextTransform (AffineTransform transform)
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{
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setTransform (getDeviceContext(), transform);
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}
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void Direct2DGraphicsContext::Pimpl::resetDeviceContextTransform()
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{
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resetTransform (getDeviceContext());
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}
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bool Direct2DGraphicsContext::Pimpl::fillSpriteBatch (const RectangleList<float>& list)
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{
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if (! owner.currentState->fillType.isColour())
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return false;
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auto* rectangleListSpriteBatch = deviceResources->rectangleListSpriteBatch.get();
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if (rectangleListSpriteBatch == nullptr)
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return false;
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const auto deviceContext = getDeviceContext();
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if (deviceContext == nullptr)
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return false;
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owner.applyPendingClipList();
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const auto& transform = owner.currentState->currentTransform;
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if (transform.isOnlyTranslated)
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{
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auto translateRectangle = [&] (const Rectangle<float>& r) -> Rectangle<float>
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{
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return transform.translated (r);
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};
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return rectangleListSpriteBatch->fillRectangles (deviceContext,
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list,
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owner.currentState->fillType.colour,
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translateRectangle,
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owner.metrics.get());
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}
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if (owner.currentState->isCurrentTransformAxisAligned())
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{
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auto transformRectangle = [&] (const Rectangle<float>& r) -> Rectangle<float>
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{
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return transform.boundsAfterTransform (r);
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};
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return rectangleListSpriteBatch->fillRectangles (deviceContext,
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list,
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owner.currentState->fillType.colour,
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transformRectangle,
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owner.metrics.get());
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}
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auto checkRectangleWithoutTransforming = [&] (const Rectangle<float>& r) -> Rectangle<float>
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{
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return r;
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};
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ScopedTransform scopedTransform { *this, owner.currentState };
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return rectangleListSpriteBatch->fillRectangles (deviceContext,
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list,
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owner.currentState->fillType.colour,
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checkRectangleWithoutTransforming,
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owner.metrics.get());
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}
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Line<float> Direct2DGraphicsContext::Pimpl::offsetShape (Line<float> a, Point<float> b)
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{
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return Line<float> { a.getStart() + b, a.getEnd() + b };
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}
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Rectangle<float> Direct2DGraphicsContext::Pimpl::offsetShape (Rectangle<float> a, Point<float> b)
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{
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return a + b;
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}
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RectangleList<float> Direct2DGraphicsContext::Pimpl::offsetShape (RectangleList<float> a, Point<float> b)
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{
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a.offsetAll (b);
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return a;
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}
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void Direct2DGraphicsContext::Pimpl::resetTransform (ID2D1DeviceContext1* context)
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{
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context->SetTransform (D2D1::IdentityMatrix());
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}
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void Direct2DGraphicsContext::Pimpl::setTransform (ID2D1DeviceContext1* context, AffineTransform newTransform)
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{
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context->SetTransform (D2DUtilities::transformToMatrix (newTransform));
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}
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DxgiAdapter::Ptr Direct2DGraphicsContext::Pimpl::findAdapter() const
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{
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return Direct2DDeviceResources::findAdapter (directX->adapters, getDeviceContext());
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}
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void Direct2DGraphicsContext::Pimpl::adapterCreated (DxgiAdapter::Ptr newAdapter)
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{
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const auto adapter = findAdapter();
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if (adapter == nullptr || ! adapter->uniqueIDMatches (newAdapter))
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teardown();
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}
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void Direct2DGraphicsContext::Pimpl::adapterRemoved (DxgiAdapter::Ptr expiringAdapter)
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{
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const auto adapter = findAdapter();
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if (adapter != nullptr && adapter->uniqueIDMatches (expiringAdapter))
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teardown();
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}
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} // namespace juce
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