| /* |
| * Copyright (C) 2011, 2012, 2017 Igalia S.L. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free |
| * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301 USA |
| */ |
| |
| #include "config.h" |
| #include "TextureMapperGC3DPlatformLayer.h" |
| |
| #if ENABLE(GRAPHICS_CONTEXT_3D) && USE(TEXTURE_MAPPER) && !USE(NICOSIA) |
| |
| #include "BitmapTextureGL.h" |
| #include "GLContext.h" |
| #include "TextureMapperGLHeaders.h" |
| #include "TextureMapperPlatformLayerBuffer.h" |
| #include "TextureMapperPlatformLayerProxy.h" |
| |
| namespace WebCore { |
| |
| TextureMapperGC3DPlatformLayer::TextureMapperGC3DPlatformLayer(GraphicsContext3D& context, GraphicsContext3D::RenderStyle renderStyle) |
| : m_context(context) |
| { |
| switch (renderStyle) { |
| case GraphicsContext3D::RenderOffscreen: |
| m_glContext = GLContext::createOffscreenContext(&PlatformDisplay::sharedDisplayForCompositing()); |
| break; |
| case GraphicsContext3D::RenderDirectlyToHostWindow: |
| ASSERT_NOT_REACHED(); |
| break; |
| } |
| |
| #if USE(COORDINATED_GRAPHICS) |
| m_platformLayerProxy = adoptRef(new TextureMapperPlatformLayerProxy()); |
| #endif |
| } |
| |
| TextureMapperGC3DPlatformLayer::~TextureMapperGC3DPlatformLayer() |
| { |
| #if !USE(COORDINATED_GRAPHICS) |
| if (client()) |
| client()->platformLayerWillBeDestroyed(); |
| #endif |
| } |
| |
| bool TextureMapperGC3DPlatformLayer::makeContextCurrent() |
| { |
| ASSERT(m_glContext); |
| return m_glContext->makeContextCurrent(); |
| } |
| |
| PlatformGraphicsContext3D TextureMapperGC3DPlatformLayer::platformContext() |
| { |
| ASSERT(m_glContext); |
| return m_glContext->platformContext(); |
| } |
| |
| #if USE(COORDINATED_GRAPHICS) |
| RefPtr<TextureMapperPlatformLayerProxy> TextureMapperGC3DPlatformLayer::proxy() const |
| { |
| return m_platformLayerProxy.copyRef(); |
| } |
| |
| void TextureMapperGC3DPlatformLayer::swapBuffersIfNeeded() |
| { |
| if (m_context.layerComposited()) |
| return; |
| |
| m_context.prepareTexture(); |
| IntSize textureSize(m_context.m_currentWidth, m_context.m_currentHeight); |
| TextureMapperGL::Flags flags = TextureMapperGL::ShouldFlipTexture | (m_context.m_attrs.alpha ? TextureMapperGL::ShouldBlend : 0); |
| |
| { |
| LockHolder holder(m_platformLayerProxy->lock()); |
| m_platformLayerProxy->pushNextBuffer(makeUnique<TextureMapperPlatformLayerBuffer>(m_context.m_compositorTexture, textureSize, flags, m_context.m_internalColorFormat)); |
| } |
| |
| m_context.markLayerComposited(); |
| } |
| #else |
| void TextureMapperGC3DPlatformLayer::paintToTextureMapper(TextureMapper& textureMapper, const FloatRect& targetRect, const TransformationMatrix& matrix, float opacity) |
| { |
| ASSERT(m_glContext); |
| |
| m_context.markLayerComposited(); |
| |
| #if USE(TEXTURE_MAPPER_GL) |
| if (m_context.m_attrs.antialias && m_context.m_state.boundFBO == m_context.m_multisampleFBO) { |
| GLContext* previousActiveContext = GLContext::current(); |
| if (previousActiveContext != m_glContext.get()) |
| m_context.makeContextCurrent(); |
| |
| m_context.resolveMultisamplingIfNecessary(); |
| ::glBindFramebuffer(GraphicsContext3D::FRAMEBUFFER, m_context.m_state.boundFBO); |
| |
| if (previousActiveContext && previousActiveContext != m_glContext.get()) |
| previousActiveContext->makeContextCurrent(); |
| } |
| |
| TextureMapperGL& texmapGL = static_cast<TextureMapperGL&>(textureMapper); |
| TextureMapperGL::Flags flags = TextureMapperGL::ShouldFlipTexture | (m_context.m_attrs.alpha ? TextureMapperGL::ShouldBlend : 0); |
| IntSize textureSize(m_context.m_currentWidth, m_context.m_currentHeight); |
| texmapGL.drawTexture(m_context.m_texture, flags, textureSize, targetRect, matrix, opacity); |
| #endif // USE(TEXTURE_MAPPER_GL) |
| } |
| #endif // USE(COORDINATED_GRAPHICS) |
| |
| } // namespace WebCore |
| |
| #endif // ENABLE(GRAPHICS_CONTEXT_3D) && USE(TEXTURE_MAPPER) |