| /* |
| * Copyright (C) 2017 Metrological Group B.V. |
| * Copyright (C) 2017 Igalia S.L. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials provided |
| * with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "NicosiaPaintingEngineThreaded.h" |
| |
| #include "GraphicsContext.h" |
| #include "GraphicsLayer.h" |
| #include "NicosiaBuffer.h" |
| #include "NicosiaPaintingContext.h" |
| #include <glib.h> |
| #include <wtf/FastMalloc.h> |
| |
| namespace Nicosia { |
| using namespace WebCore; |
| |
| struct TaskData { |
| WTF_MAKE_STRUCT_FAST_ALLOCATED; |
| |
| Ref<Buffer> buffer; |
| PaintingOperations paintingOperations; |
| }; |
| |
| void s_threadFunc(gpointer data, gpointer) |
| { |
| std::unique_ptr<TaskData> taskData(static_cast<TaskData*>(data)); |
| |
| PaintingContext::replay(taskData->buffer, taskData->paintingOperations); |
| taskData->buffer->completePainting(); |
| } |
| |
| static void paintLayer(GraphicsContext& context, GraphicsLayer& layer, const IntRect& sourceRect, const IntRect& mappedSourceRect, const IntRect& targetRect, float contentsScale, bool supportsAlpha) |
| { |
| context.save(); |
| context.clip(targetRect); |
| context.translate(targetRect.x(), targetRect.y()); |
| |
| if (supportsAlpha) { |
| context.setCompositeOperation(CompositeCopy); |
| context.fillRect(IntRect(IntPoint::zero(), sourceRect.size()), Color::transparent); |
| context.setCompositeOperation(CompositeSourceOver); |
| } |
| |
| context.translate(-sourceRect.x(), -sourceRect.y()); |
| context.scale(FloatSize(contentsScale, contentsScale)); |
| |
| layer.paintGraphicsLayerContents(context, mappedSourceRect); |
| |
| context.restore(); |
| } |
| |
| PaintingEngineThreaded::PaintingEngineThreaded() |
| { |
| // FIXME: these parameters should be fine-tuned, or maybe made configurable. |
| m_threadPool = g_thread_pool_new(s_threadFunc, nullptr, 4, TRUE, nullptr); |
| } |
| |
| PaintingEngineThreaded::~PaintingEngineThreaded() |
| { |
| g_thread_pool_free(m_threadPool, TRUE, FALSE); |
| } |
| |
| bool PaintingEngineThreaded::paint(GraphicsLayer& layer, Ref<Buffer>&& buffer, const IntRect& sourceRect, const IntRect& mappedSourceRect, const IntRect& targetRect, float contentsScale) |
| { |
| buffer->beginPainting(); |
| |
| PaintingOperations paintingOperations; |
| PaintingContext::record(paintingOperations, |
| [&](GraphicsContext& context) |
| { |
| paintLayer(context, layer, sourceRect, mappedSourceRect, targetRect, contentsScale, buffer->supportsAlpha()); |
| }); |
| |
| g_thread_pool_push(m_threadPool, new TaskData { WTFMove(buffer), WTFMove(paintingOperations) }, nullptr); |
| |
| return true; |
| } |
| |
| } // namespace Nicosia |