| /* |
| * Copyright (C) 2018 Metrological Group B.V. |
| * Copyright (C) 2018 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 "NicosiaGCGLLayer.h" |
| |
| #if ENABLE(WEBGL) && USE(NICOSIA) && USE(TEXTURE_MAPPER) |
| |
| #if USE(COORDINATED_GRAPHICS) |
| #include "TextureMapperGL.h" |
| #include "TextureMapperPlatformLayerBuffer.h" |
| #include "TextureMapperPlatformLayerProxy.h" |
| #endif |
| |
| #if USE(ANGLE) |
| #include "ImageBuffer.h" |
| #endif |
| |
| #include "GLContext.h" |
| |
| namespace Nicosia { |
| |
| using namespace WebCore; |
| |
| GCGLLayer::GCGLLayer(GraphicsContextGLOpenGL& context) |
| : m_context(context) |
| , m_contentLayer(Nicosia::ContentLayer::create(Nicosia::ContentLayerTextureMapperImpl::createFactory(*this))) |
| { |
| m_glContext = GLContext::createOffscreenContext(&PlatformDisplay::sharedDisplayForCompositing()); |
| } |
| |
| GCGLLayer::~GCGLLayer() |
| { |
| downcast<ContentLayerTextureMapperImpl>(m_contentLayer->impl()).invalidateClient(); |
| } |
| |
| bool GCGLLayer::makeContextCurrent() |
| { |
| ASSERT(m_glContext); |
| return m_glContext->makeContextCurrent(); |
| } |
| |
| PlatformGraphicsContextGL GCGLLayer::platformContext() const |
| { |
| ASSERT(m_glContext); |
| return m_glContext->platformContext(); |
| } |
| |
| void GCGLLayer::swapBuffersIfNeeded() |
| { |
| #if USE(COORDINATED_GRAPHICS) |
| if (m_context.layerComposited()) |
| return; |
| |
| m_context.prepareTexture(); |
| IntSize textureSize(m_context.m_currentWidth, m_context.m_currentHeight); |
| TextureMapperGL::Flags flags = m_context.contextAttributes().alpha ? TextureMapperGL::ShouldBlend : 0; |
| #if USE(ANGLE) |
| RefPtr<WebCore::ImageBuffer> imageBuffer = ImageBuffer::create(textureSize, RenderingMode::Unaccelerated, 1, DestinationColorSpace::SRGB(), PixelFormat::BGRA8); |
| if (!imageBuffer) |
| return; |
| |
| m_context.paintRenderingResultsToCanvas(*imageBuffer.get()); |
| RefPtr<Image> image = imageBuffer->copyImage(DontCopyBackingStore); |
| if (!image) |
| return; |
| #else |
| flags |= TextureMapperGL::ShouldFlipTexture; |
| #endif |
| |
| { |
| auto& proxy = downcast<Nicosia::ContentLayerTextureMapperImpl>(m_contentLayer->impl()).proxy(); |
| #if USE(ANGLE) |
| std::unique_ptr<TextureMapperPlatformLayerBuffer> layerBuffer; |
| layerBuffer = proxy.getAvailableBuffer(textureSize, m_context.m_internalColorFormat); |
| if (!layerBuffer) { |
| auto texture = BitmapTextureGL::create(TextureMapperContextAttributes::get(), flags, m_context.m_internalColorFormat); |
| static_cast<BitmapTextureGL&>(texture.get()).setPendingContents(WTFMove(image)); |
| layerBuffer = makeUnique<TextureMapperPlatformLayerBuffer>(WTFMove(texture), flags); |
| } else |
| layerBuffer->textureGL().setPendingContents(WTFMove(image)); |
| |
| Locker locker { proxy.lock() }; |
| proxy.pushNextBuffer(WTFMove(layerBuffer)); |
| #else |
| Locker locker { proxy.lock() }; |
| proxy.pushNextBuffer(makeUnique<TextureMapperPlatformLayerBuffer>(m_context.m_compositorTexture, textureSize, flags, m_context.m_internalColorFormat)); |
| #endif |
| } |
| |
| m_context.markLayerComposited(); |
| #endif |
| } |
| |
| } // namespace Nicosia |
| |
| #endif // ENABLE(WEBGL) && USE(NICOSIA) && USE(TEXTURE_MAPPER) |