| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "modules/webgl/WebGL2RenderingContext.h" |
| |
| #include "bindings/modules/v8/OffscreenCanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2RenderingContext.h" |
| #include "bindings/modules/v8/RenderingContext.h" |
| #include "core/frame/LocalFrame.h" |
| #include "core/frame/Settings.h" |
| #include "core/loader/FrameLoader.h" |
| #include "core/loader/FrameLoaderClient.h" |
| #include "gpu/command_buffer/client/gles2_interface.h" |
| #include "modules/webgl/EXTColorBufferFloat.h" |
| #include "modules/webgl/EXTDisjointTimerQuery.h" |
| #include "modules/webgl/EXTTextureFilterAnisotropic.h" |
| #include "modules/webgl/OESTextureFloatLinear.h" |
| #include "modules/webgl/WebGLCompressedTextureASTC.h" |
| #include "modules/webgl/WebGLCompressedTextureATC.h" |
| #include "modules/webgl/WebGLCompressedTextureETC1.h" |
| #include "modules/webgl/WebGLCompressedTexturePVRTC.h" |
| #include "modules/webgl/WebGLCompressedTextureS3TC.h" |
| #include "modules/webgl/WebGLCompressedTextureS3TCsRGB.h" |
| #include "modules/webgl/WebGLContextAttributeHelpers.h" |
| #include "modules/webgl/WebGLContextEvent.h" |
| #include "modules/webgl/WebGLDebugRendererInfo.h" |
| #include "modules/webgl/WebGLDebugShaders.h" |
| #include "modules/webgl/WebGLLoseContext.h" |
| #include "platform/graphics/gpu/DrawingBuffer.h" |
| #include "public/platform/Platform.h" |
| #include "public/platform/WebGraphicsContext3DProvider.h" |
| #include <memory> |
| |
| namespace blink { |
| |
| CanvasRenderingContext* WebGL2RenderingContext::Factory::create(HTMLCanvasElement* canvas, const CanvasContextCreationAttributes& attrs, Document&) |
| { |
| if (!RuntimeEnabledFeatures::unsafeES3APIsEnabled()) { |
| canvas->dispatchEvent(WebGLContextEvent::create(EventTypeNames::webglcontextcreationerror, false, true, "Creation of WebGL2 contexts disabled.")); |
| return nullptr; |
| } |
| |
| std::unique_ptr<WebGraphicsContext3DProvider> contextProvider(createWebGraphicsContext3DProvider(canvas, attrs, 2)); |
| if (!contextProvider) |
| return nullptr; |
| gpu::gles2::GLES2Interface* gl = contextProvider->contextGL(); |
| std::unique_ptr<Extensions3DUtil> extensionsUtil = Extensions3DUtil::create(gl); |
| if (!extensionsUtil) |
| return nullptr; |
| if (extensionsUtil->supportsExtension("GL_EXT_debug_marker")) { |
| String contextLabel(String::format("WebGL2RenderingContext-%p", contextProvider.get())); |
| gl->PushGroupMarkerEXT(0, contextLabel.ascii().data()); |
| } |
| |
| WebGL2RenderingContext* renderingContext = new WebGL2RenderingContext(canvas, std::move(contextProvider), attrs); |
| |
| if (!renderingContext->drawingBuffer()) { |
| canvas->dispatchEvent(WebGLContextEvent::create(EventTypeNames::webglcontextcreationerror, false, true, "Could not create a WebGL2 context.")); |
| return nullptr; |
| } |
| |
| renderingContext->initializeNewContext(); |
| renderingContext->registerContextExtensions(); |
| |
| return renderingContext; |
| } |
| |
| void WebGL2RenderingContext::Factory::onError(HTMLCanvasElement* canvas, const String& error) |
| { |
| canvas->dispatchEvent(WebGLContextEvent::create(EventTypeNames::webglcontextcreationerror, false, true, error)); |
| } |
| |
| WebGL2RenderingContext::WebGL2RenderingContext(HTMLCanvasElement* passedCanvas, std::unique_ptr<WebGraphicsContext3DProvider> contextProvider, const CanvasContextCreationAttributes& requestedAttributes) |
| : WebGL2RenderingContextBase(passedCanvas, std::move(contextProvider), requestedAttributes) |
| { |
| } |
| |
| WebGL2RenderingContext::~WebGL2RenderingContext() |
| { |
| |
| } |
| |
| void WebGL2RenderingContext::setCanvasGetContextResult(RenderingContext& result) |
| { |
| result.setWebGL2RenderingContext(this); |
| } |
| |
| void WebGL2RenderingContext::setOffscreenCanvasGetContextResult(OffscreenRenderingContext& result) |
| { |
| result.setWebGL2RenderingContext(this); |
| } |
| |
| ImageBitmap* WebGL2RenderingContext::transferToImageBitmap(ExceptionState& exceptionState) |
| { |
| NOTIMPLEMENTED(); |
| return nullptr; |
| } |
| |
| void WebGL2RenderingContext::registerContextExtensions() |
| { |
| // TODO(kainino): add DraftExtension flag to some of these before WebGL 2 |
| // is rolled out. |
| // https://bugs.chromium.org/p/chromium/issues/detail?id=647892 |
| |
| // Register extensions. |
| registerExtension<EXTColorBufferFloat>(m_extColorBufferFloat); |
| registerExtension<EXTDisjointTimerQuery>(m_extDisjointTimerQuery); |
| registerExtension<EXTTextureFilterAnisotropic>(m_extTextureFilterAnisotropic); |
| registerExtension<OESTextureFloatLinear>(m_oesTextureFloatLinear); |
| registerExtension<WebGLCompressedTextureASTC>(m_webglCompressedTextureASTC); |
| registerExtension<WebGLCompressedTextureATC>(m_webglCompressedTextureATC); |
| registerExtension<WebGLCompressedTextureETC1>(m_webglCompressedTextureETC1); |
| registerExtension<WebGLCompressedTexturePVRTC>(m_webglCompressedTexturePVRTC); |
| registerExtension<WebGLCompressedTextureS3TC>(m_webglCompressedTextureS3TC); |
| registerExtension<WebGLCompressedTextureS3TCsRGB>(m_webglCompressedTextureS3TCsRGB); |
| registerExtension<WebGLDebugRendererInfo>(m_webglDebugRendererInfo); |
| registerExtension<WebGLDebugShaders>(m_webglDebugShaders); |
| registerExtension<WebGLLoseContext>(m_webglLoseContext); |
| } |
| |
| DEFINE_TRACE(WebGL2RenderingContext) |
| { |
| visitor->trace(m_extColorBufferFloat); |
| visitor->trace(m_extDisjointTimerQuery); |
| visitor->trace(m_extTextureFilterAnisotropic); |
| visitor->trace(m_oesTextureFloatLinear); |
| visitor->trace(m_webglCompressedTextureASTC); |
| visitor->trace(m_webglCompressedTextureATC); |
| visitor->trace(m_webglCompressedTextureETC1); |
| visitor->trace(m_webglCompressedTexturePVRTC); |
| visitor->trace(m_webglCompressedTextureS3TC); |
| visitor->trace(m_webglCompressedTextureS3TCsRGB); |
| visitor->trace(m_webglDebugRendererInfo); |
| visitor->trace(m_webglDebugShaders); |
| visitor->trace(m_webglLoseContext); |
| WebGL2RenderingContextBase::trace(visitor); |
| } |
| |
| DEFINE_TRACE_WRAPPERS(WebGL2RenderingContext) |
| { |
| visitor->traceWrappers(m_extColorBufferFloat); |
| visitor->traceWrappers(m_extDisjointTimerQuery); |
| visitor->traceWrappers(m_extTextureFilterAnisotropic); |
| visitor->traceWrappers(m_oesTextureFloatLinear); |
| visitor->traceWrappers(m_webglCompressedTextureASTC); |
| visitor->traceWrappers(m_webglCompressedTextureATC); |
| visitor->traceWrappers(m_webglCompressedTextureETC1); |
| visitor->traceWrappers(m_webglCompressedTexturePVRTC); |
| visitor->traceWrappers(m_webglCompressedTextureS3TC); |
| visitor->traceWrappers(m_webglCompressedTextureS3TCsRGB); |
| visitor->traceWrappers(m_webglDebugRendererInfo); |
| visitor->traceWrappers(m_webglDebugShaders); |
| visitor->traceWrappers(m_webglLoseContext); |
| } |
| |
| } // namespace blink |