diff options
Diffstat (limited to 'Source/WebCore/html/canvas/WebGLRenderingContext.h')
| -rw-r--r-- | Source/WebCore/html/canvas/WebGLRenderingContext.h | 800 |
1 files changed, 28 insertions, 772 deletions
diff --git a/Source/WebCore/html/canvas/WebGLRenderingContext.h b/Source/WebCore/html/canvas/WebGLRenderingContext.h index a4a0a1b7b..5f4e5d00b 100644 --- a/Source/WebCore/html/canvas/WebGLRenderingContext.h +++ b/Source/WebCore/html/canvas/WebGLRenderingContext.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009, 2014 Apple Inc. All rights reserved. + * Copyright (C) 2015-2017 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -10,10 +10,10 @@ * 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 APPLE COMPUTER, INC. ``AS IS'' AND ANY + * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE COMPUTER, INC. OR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. 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 @@ -23,782 +23,38 @@ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ -#ifndef WebGLRenderingContext_h -#define WebGLRenderingContext_h +#pragma once -#include "ActiveDOMObject.h" -#include "CanvasRenderingContext.h" -#include "DrawingBuffer.h" -#include "GraphicsContext3D.h" -#include "ImageBuffer.h" -#include "Timer.h" -#include "WebGLGetInfo.h" - -#include <memory> -#include <runtime/Float32Array.h> -#include <runtime/Int32Array.h> -#include <wtf/text/WTFString.h> +#include "WebGLRenderingContextBase.h" namespace WebCore { -class ANGLEInstancedArrays; -class EXTDrawBuffers; -class EXTTextureFilterAnisotropic; -class HTMLImageElement; -class HTMLVideoElement; -class ImageBuffer; -class ImageData; -class IntSize; -class OESStandardDerivatives; -class OESTextureFloat; -class OESTextureFloatLinear; -class OESTextureHalfFloat; -class OESTextureHalfFloatLinear; -class OESVertexArrayObject; -class OESElementIndexUint; -class WebGLActiveInfo; -class WebGLBuffer; -class WebGLContextGroup; -class WebGLContextObject; -class WebGLCompressedTextureATC; -class WebGLCompressedTexturePVRTC; -class WebGLCompressedTextureS3TC; -class WebGLContextAttributes; -class WebGLDebugRendererInfo; -class WebGLDebugShaders; -class WebGLDepthTexture; -class WebGLExtension; -class WebGLFramebuffer; -class WebGLLoseContext; -class WebGLObject; -class WebGLProgram; -class WebGLRenderbuffer; -class WebGLShader; -class WebGLSharedObject; -class WebGLShaderPrecisionFormat; -class WebGLTexture; -class WebGLUniformLocation; -class WebGLVertexArrayObjectOES; - -typedef int ExceptionCode; - -class WebGLRenderingContext : public CanvasRenderingContext, public ActiveDOMObject { +class WebGLRenderingContext final : public WebGLRenderingContextBase { public: - static OwnPtr<WebGLRenderingContext> create(HTMLCanvasElement*, WebGLContextAttributes*); - virtual ~WebGLRenderingContext(); - - virtual bool is3d() const override { return true; } - virtual bool isAccelerated() const override { return true; } - - int drawingBufferWidth() const; - int drawingBufferHeight() const; - - void activeTexture(GC3Denum texture, ExceptionCode&); - void attachShader(WebGLProgram*, WebGLShader*, ExceptionCode&); - void bindAttribLocation(WebGLProgram*, GC3Duint index, const String& name, ExceptionCode&); - void bindBuffer(GC3Denum target, WebGLBuffer*, ExceptionCode&); - void bindFramebuffer(GC3Denum target, WebGLFramebuffer*, ExceptionCode&); - void bindRenderbuffer(GC3Denum target, WebGLRenderbuffer*, ExceptionCode&); - void bindTexture(GC3Denum target, WebGLTexture*, ExceptionCode&); - void blendColor(GC3Dfloat red, GC3Dfloat green, GC3Dfloat blue, GC3Dfloat alpha); - void blendEquation(GC3Denum mode); - void blendEquationSeparate(GC3Denum modeRGB, GC3Denum modeAlpha); - void blendFunc(GC3Denum sfactor, GC3Denum dfactor); - void blendFuncSeparate(GC3Denum srcRGB, GC3Denum dstRGB, GC3Denum srcAlpha, GC3Denum dstAlpha); - - void bufferData(GC3Denum target, long long size, GC3Denum usage, ExceptionCode&); - void bufferData(GC3Denum target, ArrayBuffer* data, GC3Denum usage, ExceptionCode&); - void bufferData(GC3Denum target, ArrayBufferView* data, GC3Denum usage, ExceptionCode&); - void bufferSubData(GC3Denum target, long long offset, ArrayBuffer* data, ExceptionCode&); - void bufferSubData(GC3Denum target, long long offset, ArrayBufferView* data, ExceptionCode&); - - GC3Denum checkFramebufferStatus(GC3Denum target); - void clear(GC3Dbitfield mask); - void clearColor(GC3Dfloat red, GC3Dfloat green, GC3Dfloat blue, GC3Dfloat alpha); - void clearDepth(GC3Dfloat); - void clearStencil(GC3Dint); - void colorMask(GC3Dboolean red, GC3Dboolean green, GC3Dboolean blue, GC3Dboolean alpha); - void compileShader(WebGLShader*, ExceptionCode&); - - void compressedTexImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, GC3Dsizei width, - GC3Dsizei height, GC3Dint border, ArrayBufferView* data); - void compressedTexSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, - GC3Dsizei width, GC3Dsizei height, GC3Denum format, ArrayBufferView* data); - - void copyTexImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, GC3Dint x, GC3Dint y, GC3Dsizei width, GC3Dsizei height, GC3Dint border); - void copyTexSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, GC3Dint x, GC3Dint y, GC3Dsizei width, GC3Dsizei height); - - PassRefPtr<WebGLBuffer> createBuffer(); - PassRefPtr<WebGLFramebuffer> createFramebuffer(); - PassRefPtr<WebGLProgram> createProgram(); - PassRefPtr<WebGLRenderbuffer> createRenderbuffer(); - PassRefPtr<WebGLShader> createShader(GC3Denum type, ExceptionCode&); - PassRefPtr<WebGLTexture> createTexture(); - - void cullFace(GC3Denum mode); - - void deleteBuffer(WebGLBuffer*); - void deleteFramebuffer(WebGLFramebuffer*); - void deleteProgram(WebGLProgram*); - void deleteRenderbuffer(WebGLRenderbuffer*); - void deleteShader(WebGLShader*); - void deleteTexture(WebGLTexture*); - - void depthFunc(GC3Denum); - void depthMask(GC3Dboolean); - void depthRange(GC3Dfloat zNear, GC3Dfloat zFar); - void detachShader(WebGLProgram*, WebGLShader*, ExceptionCode&); - void disable(GC3Denum cap); - void disableVertexAttribArray(GC3Duint index, ExceptionCode&); - void drawArrays(GC3Denum mode, GC3Dint first, GC3Dsizei count, ExceptionCode&); - void drawElements(GC3Denum mode, GC3Dsizei count, GC3Denum type, long long offset, ExceptionCode&); - - void enable(GC3Denum cap); - void enableVertexAttribArray(GC3Duint index, ExceptionCode&); - void finish(); - void flush(); - void framebufferRenderbuffer(GC3Denum target, GC3Denum attachment, GC3Denum renderbuffertarget, WebGLRenderbuffer*, ExceptionCode&); - void framebufferTexture2D(GC3Denum target, GC3Denum attachment, GC3Denum textarget, WebGLTexture*, GC3Dint level, ExceptionCode&); - void frontFace(GC3Denum mode); - void generateMipmap(GC3Denum target); - - PassRefPtr<WebGLActiveInfo> getActiveAttrib(WebGLProgram*, GC3Duint index, ExceptionCode&); - PassRefPtr<WebGLActiveInfo> getActiveUniform(WebGLProgram*, GC3Duint index, ExceptionCode&); - bool getAttachedShaders(WebGLProgram*, Vector<RefPtr<WebGLShader>>&, ExceptionCode&); - GC3Dint getAttribLocation(WebGLProgram*, const String& name); - WebGLGetInfo getBufferParameter(GC3Denum target, GC3Denum pname, ExceptionCode&); - PassRefPtr<WebGLContextAttributes> getContextAttributes(); - GC3Denum getError(); - WebGLExtension* getExtension(const String& name); - WebGLGetInfo getFramebufferAttachmentParameter(GC3Denum target, GC3Denum attachment, GC3Denum pname, ExceptionCode&); - WebGLGetInfo getParameter(GC3Denum pname, ExceptionCode&); - WebGLGetInfo getProgramParameter(WebGLProgram*, GC3Denum pname, ExceptionCode&); - String getProgramInfoLog(WebGLProgram*, ExceptionCode&); - WebGLGetInfo getRenderbufferParameter(GC3Denum target, GC3Denum pname, ExceptionCode&); - WebGLGetInfo getShaderParameter(WebGLShader*, GC3Denum pname, ExceptionCode&); - String getShaderInfoLog(WebGLShader*, ExceptionCode&); - PassRefPtr<WebGLShaderPrecisionFormat> getShaderPrecisionFormat(GC3Denum shaderType, GC3Denum precisionType, ExceptionCode&); - String getShaderSource(WebGLShader*, ExceptionCode&); - Vector<String> getSupportedExtensions(); - WebGLGetInfo getTexParameter(GC3Denum target, GC3Denum pname, ExceptionCode&); - WebGLGetInfo getUniform(WebGLProgram*, const WebGLUniformLocation*, ExceptionCode&); - PassRefPtr<WebGLUniformLocation> getUniformLocation(WebGLProgram*, const String&, ExceptionCode&); - WebGLGetInfo getVertexAttrib(GC3Duint index, GC3Denum pname, ExceptionCode&); - long long getVertexAttribOffset(GC3Duint index, GC3Denum pname); - - void hint(GC3Denum target, GC3Denum mode); - GC3Dboolean isBuffer(WebGLBuffer*); - bool isContextLost() const; - GC3Dboolean isEnabled(GC3Denum cap); - GC3Dboolean isFramebuffer(WebGLFramebuffer*); - GC3Dboolean isProgram(WebGLProgram*); - GC3Dboolean isRenderbuffer(WebGLRenderbuffer*); - GC3Dboolean isShader(WebGLShader*); - GC3Dboolean isTexture(WebGLTexture*); - - void lineWidth(GC3Dfloat); - void linkProgram(WebGLProgram*, ExceptionCode&); - void pixelStorei(GC3Denum pname, GC3Dint param); - void polygonOffset(GC3Dfloat factor, GC3Dfloat units); - void readPixels(GC3Dint x, GC3Dint y, GC3Dsizei width, GC3Dsizei height, GC3Denum format, GC3Denum type, ArrayBufferView* pixels, ExceptionCode&); - void releaseShaderCompiler(); - void renderbufferStorage(GC3Denum target, GC3Denum internalformat, GC3Dsizei width, GC3Dsizei height); - void sampleCoverage(GC3Dfloat value, GC3Dboolean invert); - void scissor(GC3Dint x, GC3Dint y, GC3Dsizei width, GC3Dsizei height); - void shaderSource(WebGLShader*, const String&, ExceptionCode&); - void stencilFunc(GC3Denum func, GC3Dint ref, GC3Duint mask); - void stencilFuncSeparate(GC3Denum face, GC3Denum func, GC3Dint ref, GC3Duint mask); - void stencilMask(GC3Duint); - void stencilMaskSeparate(GC3Denum face, GC3Duint mask); - void stencilOp(GC3Denum fail, GC3Denum zfail, GC3Denum zpass); - void stencilOpSeparate(GC3Denum face, GC3Denum fail, GC3Denum zfail, GC3Denum zpass); - - void texImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, - GC3Dsizei width, GC3Dsizei height, GC3Dint border, - GC3Denum format, GC3Denum type, ArrayBufferView*, ExceptionCode&); - void texImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, - GC3Denum format, GC3Denum type, ImageData*, ExceptionCode&); - void texImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, - GC3Denum format, GC3Denum type, HTMLImageElement*, ExceptionCode&); - void texImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, - GC3Denum format, GC3Denum type, HTMLCanvasElement*, ExceptionCode&); -#if ENABLE(VIDEO) - void texImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, - GC3Denum format, GC3Denum type, HTMLVideoElement*, ExceptionCode&); -#endif - - void texParameterf(GC3Denum target, GC3Denum pname, GC3Dfloat param); - void texParameteri(GC3Denum target, GC3Denum pname, GC3Dint param); - - void texSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, - GC3Dsizei width, GC3Dsizei height, - GC3Denum format, GC3Denum type, ArrayBufferView*, ExceptionCode&); - void texSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, - GC3Denum format, GC3Denum type, ImageData*, ExceptionCode&); - void texSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, - GC3Denum format, GC3Denum type, HTMLImageElement*, ExceptionCode&); - void texSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, - GC3Denum format, GC3Denum type, HTMLCanvasElement*, ExceptionCode&); -#if ENABLE(VIDEO) - void texSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, - GC3Denum format, GC3Denum type, HTMLVideoElement*, ExceptionCode&); -#endif - - void uniform1f(const WebGLUniformLocation* location, GC3Dfloat x, ExceptionCode&); - void uniform1fv(const WebGLUniformLocation* location, Float32Array* v, ExceptionCode&); - void uniform1fv(const WebGLUniformLocation* location, GC3Dfloat* v, GC3Dsizei size, ExceptionCode&); - void uniform1i(const WebGLUniformLocation* location, GC3Dint x, ExceptionCode&); - void uniform1iv(const WebGLUniformLocation* location, Int32Array* v, ExceptionCode&); - void uniform1iv(const WebGLUniformLocation* location, GC3Dint* v, GC3Dsizei size, ExceptionCode&); - void uniform2f(const WebGLUniformLocation* location, GC3Dfloat x, GC3Dfloat y, ExceptionCode&); - void uniform2fv(const WebGLUniformLocation* location, Float32Array* v, ExceptionCode&); - void uniform2fv(const WebGLUniformLocation* location, GC3Dfloat* v, GC3Dsizei size, ExceptionCode&); - void uniform2i(const WebGLUniformLocation* location, GC3Dint x, GC3Dint y, ExceptionCode&); - void uniform2iv(const WebGLUniformLocation* location, Int32Array* v, ExceptionCode&); - void uniform2iv(const WebGLUniformLocation* location, GC3Dint* v, GC3Dsizei size, ExceptionCode&); - void uniform3f(const WebGLUniformLocation* location, GC3Dfloat x, GC3Dfloat y, GC3Dfloat z, ExceptionCode&); - void uniform3fv(const WebGLUniformLocation* location, Float32Array* v, ExceptionCode&); - void uniform3fv(const WebGLUniformLocation* location, GC3Dfloat* v, GC3Dsizei size, ExceptionCode&); - void uniform3i(const WebGLUniformLocation* location, GC3Dint x, GC3Dint y, GC3Dint z, ExceptionCode&); - void uniform3iv(const WebGLUniformLocation* location, Int32Array* v, ExceptionCode&); - void uniform3iv(const WebGLUniformLocation* location, GC3Dint* v, GC3Dsizei size, ExceptionCode&); - void uniform4f(const WebGLUniformLocation* location, GC3Dfloat x, GC3Dfloat y, GC3Dfloat z, GC3Dfloat w, ExceptionCode&); - void uniform4fv(const WebGLUniformLocation* location, Float32Array* v, ExceptionCode&); - void uniform4fv(const WebGLUniformLocation* location, GC3Dfloat* v, GC3Dsizei size, ExceptionCode&); - void uniform4i(const WebGLUniformLocation* location, GC3Dint x, GC3Dint y, GC3Dint z, GC3Dint w, ExceptionCode&); - void uniform4iv(const WebGLUniformLocation* location, Int32Array* v, ExceptionCode&); - void uniform4iv(const WebGLUniformLocation* location, GC3Dint* v, GC3Dsizei size, ExceptionCode&); - void uniformMatrix2fv(const WebGLUniformLocation* location, GC3Dboolean transpose, Float32Array* value, ExceptionCode&); - void uniformMatrix2fv(const WebGLUniformLocation* location, GC3Dboolean transpose, GC3Dfloat* value, GC3Dsizei size, ExceptionCode&); - void uniformMatrix3fv(const WebGLUniformLocation* location, GC3Dboolean transpose, Float32Array* value, ExceptionCode&); - void uniformMatrix3fv(const WebGLUniformLocation* location, GC3Dboolean transpose, GC3Dfloat* value, GC3Dsizei size, ExceptionCode&); - void uniformMatrix4fv(const WebGLUniformLocation* location, GC3Dboolean transpose, Float32Array* value, ExceptionCode&); - void uniformMatrix4fv(const WebGLUniformLocation* location, GC3Dboolean transpose, GC3Dfloat* value, GC3Dsizei size, ExceptionCode&); - - void useProgram(WebGLProgram*, ExceptionCode&); - void validateProgram(WebGLProgram*, ExceptionCode&); - - void vertexAttrib1f(GC3Duint index, GC3Dfloat x); - void vertexAttrib1fv(GC3Duint index, Float32Array* values); - void vertexAttrib1fv(GC3Duint index, GC3Dfloat* values, GC3Dsizei size); - void vertexAttrib2f(GC3Duint index, GC3Dfloat x, GC3Dfloat y); - void vertexAttrib2fv(GC3Duint index, Float32Array* values); - void vertexAttrib2fv(GC3Duint index, GC3Dfloat* values, GC3Dsizei size); - void vertexAttrib3f(GC3Duint index, GC3Dfloat x, GC3Dfloat y, GC3Dfloat z); - void vertexAttrib3fv(GC3Duint index, Float32Array* values); - void vertexAttrib3fv(GC3Duint index, GC3Dfloat* values, GC3Dsizei size); - void vertexAttrib4f(GC3Duint index, GC3Dfloat x, GC3Dfloat y, GC3Dfloat z, GC3Dfloat w); - void vertexAttrib4fv(GC3Duint index, Float32Array* values); - void vertexAttrib4fv(GC3Duint index, GC3Dfloat* values, GC3Dsizei size); - void vertexAttribPointer(GC3Duint index, GC3Dint size, GC3Denum type, GC3Dboolean normalized, - GC3Dsizei stride, long long offset, ExceptionCode&); - - void viewport(GC3Dint x, GC3Dint y, GC3Dsizei width, GC3Dsizei height); - - // WEBKIT_lose_context support - enum LostContextMode { - // Lost context occurred at the graphics system level. - RealLostContext, - - // Lost context provoked by WEBKIT_lose_context. - SyntheticLostContext - }; - void forceLostContext(LostContextMode); - void forceRestoreContext(); - void loseContextImpl(LostContextMode); - - GraphicsContext3D* graphicsContext3D() const { return m_context.get(); } - WebGLContextGroup* contextGroup() const { return m_contextGroup.get(); } -#if USE(ACCELERATED_COMPOSITING) - virtual PlatformLayer* platformLayer() const override; -#endif - - void reshape(int width, int height); - - void markLayerComposited(); - virtual void paintRenderingResultsToCanvas() override; - virtual PassRefPtr<ImageData> paintRenderingResultsToImageData(); - - void removeSharedObject(WebGLSharedObject*); - void removeContextObject(WebGLContextObject*); - - unsigned getMaxVertexAttribs() const { return m_maxVertexAttribs; } - - // ANGLE_instanced_arrays extension functions. - void drawArraysInstanced(GC3Denum mode, GC3Dint first, GC3Dsizei count, GC3Dsizei primcount); - void drawElementsInstanced(GC3Denum mode, GC3Dsizei count, GC3Denum type, long long offset, GC3Dsizei primcount); - void vertexAttribDivisor(GC3Duint index, GC3Duint divisor); + WebGLRenderingContext(HTMLCanvasElement&, GraphicsContext3DAttributes); + WebGLRenderingContext(HTMLCanvasElement&, Ref<GraphicsContext3D>&&, GraphicsContext3DAttributes); private: - friend class EXTDrawBuffers; - friend class WebGLFramebuffer; - friend class WebGLObject; - friend class OESVertexArrayObject; - friend class WebGLDebugShaders; - friend class WebGLCompressedTextureATC; - friend class WebGLCompressedTexturePVRTC; - friend class WebGLCompressedTextureS3TC; - friend class WebGLRenderingContextErrorMessageCallback; - friend class WebGLVertexArrayObjectOES; - - WebGLRenderingContext(HTMLCanvasElement*, PassRefPtr<GraphicsContext3D>, GraphicsContext3D::Attributes); - void initializeNewContext(); - void setupFlags(); - - // ActiveDOMObject - virtual bool hasPendingActivity() const override; - virtual void stop() override; - - void addSharedObject(WebGLSharedObject*); - void addContextObject(WebGLContextObject*); - void detachAndRemoveAllObjects(); - - void destroyGraphicsContext3D(); - void markContextChanged(); - void cleanupAfterGraphicsCall(bool changed) - { - if (changed) - markContextChanged(); - } - - // Query whether it is built on top of compliant GLES2 implementation. - bool isGLES2Compliant() { return m_isGLES2Compliant; } - // Query if the GL implementation is NPOT strict. - bool isGLES2NPOTStrict() { return m_isGLES2NPOTStrict; } - // Query if the GL implementation generates errors on out-of-bounds buffer accesses. - bool isErrorGeneratedOnOutOfBoundsAccesses() { return m_isErrorGeneratedOnOutOfBoundsAccesses; } - // Query if the GL implementation initializes textures/renderbuffers to 0. - bool isResourceSafe() { return m_isResourceSafe; } - // Query if depth_stencil buffer is supported. - bool isDepthStencilSupported() { return m_isDepthStencilSupported; } - - // Helper to return the size in bytes of OpenGL data types - // like GL_FLOAT, GL_INT, etc. - unsigned int sizeInBytes(GC3Denum type); - - // Basic validation of count and offset against number of elements in element array buffer - bool validateElementArraySize(GC3Dsizei count, GC3Denum type, GC3Dintptr offset); - - // Conservative but quick index validation - bool validateIndexArrayConservative(GC3Denum type, unsigned& numElementsRequired); - - // Precise but slow index validation -- only done if conservative checks fail - bool validateIndexArrayPrecise(GC3Dsizei count, GC3Denum type, GC3Dintptr offset, unsigned& numElementsRequired); - bool validateVertexAttributes(unsigned elementCount, unsigned primitiveCount = 0); - - bool validateWebGLObject(const char*, WebGLObject*); - - bool validateDrawArrays(const char* functionName, GC3Denum mode, GC3Dint first, GC3Dsizei count, GC3Dsizei primcount); - bool validateDrawElements(const char* functionName, GC3Denum mode, GC3Dsizei count, GC3Denum type, long long offset, unsigned& numElements, GC3Dsizei primcount); - - // Adds a compressed texture format. - void addCompressedTextureFormat(GC3Denum); - - PassRefPtr<Image> drawImageIntoBuffer(Image*, int width, int height, int deviceScaleFactor); - -#if ENABLE(VIDEO) - PassRefPtr<Image> videoFrameToImage(HTMLVideoElement*, BackingStoreCopy, ExceptionCode&); -#endif - - RefPtr<GraphicsContext3D> m_context; - RefPtr<WebGLContextGroup> m_contextGroup; - - // Optional structure for rendering to a DrawingBuffer, instead of directly - // to the back-buffer of m_context. - RefPtr<DrawingBuffer> m_drawingBuffer; - - // Dispatches a context lost event once it is determined that one is needed. - // This is used both for synthetic and real context losses. For real ones, it's - // likely that there's no JavaScript on the stack, but that might be dependent - // on how exactly the platform discovers that the context was lost. For better - // portability we always defer the dispatch of the event. - Timer<WebGLRenderingContext> m_dispatchContextLostEventTimer; - bool m_restoreAllowed; - Timer<WebGLRenderingContext> m_restoreTimer; - - bool m_needsUpdate; - bool m_markedCanvasDirty; - HashSet<WebGLContextObject*> m_contextObjects; - - // List of bound VBO's. Used to maintain info about sizes for ARRAY_BUFFER and stored values for ELEMENT_ARRAY_BUFFER - RefPtr<WebGLBuffer> m_boundArrayBuffer; - - RefPtr<WebGLVertexArrayObjectOES> m_defaultVertexArrayObject; - RefPtr<WebGLVertexArrayObjectOES> m_boundVertexArrayObject; - void setBoundVertexArrayObject(PassRefPtr<WebGLVertexArrayObjectOES> arrayObject) - { - if (arrayObject) - m_boundVertexArrayObject = arrayObject; - else - m_boundVertexArrayObject = m_defaultVertexArrayObject; - } - - class VertexAttribValue { - public: - VertexAttribValue() - { - initValue(); - } - - void initValue() - { - value[0] = 0.0f; - value[1] = 0.0f; - value[2] = 0.0f; - value[3] = 1.0f; - } - - GC3Dfloat value[4]; - }; - Vector<VertexAttribValue> m_vertexAttribValue; - unsigned m_maxVertexAttribs; - RefPtr<WebGLBuffer> m_vertexAttrib0Buffer; - long m_vertexAttrib0BufferSize; - GC3Dfloat m_vertexAttrib0BufferValue[4]; - bool m_forceAttrib0BufferRefill; - bool m_vertexAttrib0UsedBefore; - - RefPtr<WebGLProgram> m_currentProgram; - RefPtr<WebGLFramebuffer> m_framebufferBinding; - RefPtr<WebGLRenderbuffer> m_renderbufferBinding; - struct TextureUnitState { - RefPtr<WebGLTexture> texture2DBinding; - RefPtr<WebGLTexture> textureCubeMapBinding; - }; - Vector<TextureUnitState> m_textureUnits; - unsigned long m_activeTextureUnit; - - RefPtr<WebGLTexture> m_blackTexture2D; - RefPtr<WebGLTexture> m_blackTextureCubeMap; - - Vector<GC3Denum> m_compressedTextureFormats; - - // Fixed-size cache of reusable image buffers for video texImage2D calls. - class LRUImageBufferCache { - public: - LRUImageBufferCache(int capacity); - // The pointer returned is owned by the image buffer map. - ImageBuffer* imageBuffer(const IntSize& size); - private: - void bubbleToFront(int idx); - std::unique_ptr<std::unique_ptr<ImageBuffer>[]> m_buffers; - int m_capacity; - }; - LRUImageBufferCache m_generatedImageCache; - - GC3Dint m_maxTextureSize; - GC3Dint m_maxCubeMapTextureSize; - GC3Dint m_maxRenderbufferSize; - GC3Dint m_maxViewportDims[2]; - GC3Dint m_maxTextureLevel; - GC3Dint m_maxCubeMapTextureLevel; - - GC3Dint m_maxDrawBuffers; - GC3Dint m_maxColorAttachments; - GC3Denum m_backDrawBuffer; - bool m_drawBuffersWebGLRequirementsChecked; - bool m_drawBuffersSupported; - - GC3Dint m_packAlignment; - GC3Dint m_unpackAlignment; - bool m_unpackFlipY; - bool m_unpackPremultiplyAlpha; - GC3Denum m_unpackColorspaceConversion; - bool m_contextLost; - LostContextMode m_contextLostMode; - GraphicsContext3D::Attributes m_attributes; - - bool m_layerCleared; - GC3Dfloat m_clearColor[4]; - bool m_scissorEnabled; - GC3Dfloat m_clearDepth; - GC3Dint m_clearStencil; - GC3Dboolean m_colorMask[4]; - GC3Dboolean m_depthMask; - - bool m_stencilEnabled; - GC3Duint m_stencilMask, m_stencilMaskBack; - GC3Dint m_stencilFuncRef, m_stencilFuncRefBack; // Note that these are the user specified values, not the internal clamped value. - GC3Duint m_stencilFuncMask, m_stencilFuncMaskBack; - - bool m_isGLES2Compliant; - bool m_isGLES2NPOTStrict; - bool m_isErrorGeneratedOnOutOfBoundsAccesses; - bool m_isResourceSafe; - bool m_isDepthStencilSupported; - bool m_isRobustnessEXTSupported; - - bool m_synthesizedErrorsToConsole; - int m_numGLErrorsToConsoleAllowed; - - // Enabled extension objects. - OwnPtr<EXTDrawBuffers> m_extDrawBuffers; - OwnPtr<EXTTextureFilterAnisotropic> m_extTextureFilterAnisotropic; - OwnPtr<OESTextureFloat> m_oesTextureFloat; - OwnPtr<OESTextureFloatLinear> m_oesTextureFloatLinear; - OwnPtr<OESTextureHalfFloat> m_oesTextureHalfFloat; - OwnPtr<OESTextureHalfFloatLinear> m_oesTextureHalfFloatLinear; - OwnPtr<OESStandardDerivatives> m_oesStandardDerivatives; - OwnPtr<OESVertexArrayObject> m_oesVertexArrayObject; - OwnPtr<OESElementIndexUint> m_oesElementIndexUint; - OwnPtr<WebGLLoseContext> m_webglLoseContext; - OwnPtr<WebGLDebugRendererInfo> m_webglDebugRendererInfo; - OwnPtr<WebGLDebugShaders> m_webglDebugShaders; - OwnPtr<WebGLCompressedTextureATC> m_webglCompressedTextureATC; - OwnPtr<WebGLCompressedTexturePVRTC> m_webglCompressedTexturePVRTC; - OwnPtr<WebGLCompressedTextureS3TC> m_webglCompressedTextureS3TC; - OwnPtr<WebGLDepthTexture> m_webglDepthTexture; - OwnPtr<ANGLEInstancedArrays> m_angleInstancedArrays; - - // Helpers for getParameter and others - WebGLGetInfo getBooleanParameter(GC3Denum); - WebGLGetInfo getBooleanArrayParameter(GC3Denum); - WebGLGetInfo getFloatParameter(GC3Denum); - WebGLGetInfo getIntParameter(GC3Denum); - WebGLGetInfo getUnsignedIntParameter(GC3Denum); - WebGLGetInfo getWebGLFloatArrayParameter(GC3Denum); - WebGLGetInfo getWebGLIntArrayParameter(GC3Denum); - - // Clear the backbuffer if it was composited since the last operation. - // clearMask is set to the bitfield of any clear that would happen anyway at this time - // and the function returns true if that clear is now unnecessary. - bool clearIfComposited(GC3Dbitfield clearMask = 0); - - // Helper to restore state that clearing the framebuffer may destroy. - void restoreStateAfterClear(); - - void texImage2DBase(GC3Denum target, GC3Dint level, GC3Denum internalformat, GC3Dsizei width, GC3Dsizei height, GC3Dint border, GC3Denum format, GC3Denum type, const void* pixels, ExceptionCode&); - void texImage2DImpl(GC3Denum target, GC3Dint level, GC3Denum internalformat, GC3Denum format, GC3Denum type, Image*, GraphicsContext3D::ImageHtmlDomSource, bool flipY, bool premultiplyAlpha, ExceptionCode&); - void texSubImage2DBase(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, GC3Dsizei width, GC3Dsizei height, GC3Denum format, GC3Denum type, const void* pixels, ExceptionCode&); - void texSubImage2DImpl(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, GC3Denum format, GC3Denum type, Image*, GraphicsContext3D::ImageHtmlDomSource, bool flipY, bool premultiplyAlpha, ExceptionCode&); - - void checkTextureCompleteness(const char*, bool); - - void createFallbackBlackTextures1x1(); - - // Helper function for copyTex{Sub}Image, check whether the internalformat - // and the color buffer format of the current bound framebuffer combination - // is valid. - bool isTexInternalFormatColorBufferCombinationValid(GC3Denum texInternalFormat, - GC3Denum colorBufferFormat); - - // Helper function to get the bound framebuffer's color buffer format. - GC3Denum getBoundFramebufferColorFormat(); - - // Helper function to get the bound framebuffer's width. - int getBoundFramebufferWidth(); - - // Helper function to get the bound framebuffer's height. - int getBoundFramebufferHeight(); - - // Helper function to verify limits on the length of uniform and attribute locations. - bool validateLocationLength(const char* functionName, const String&); - - // Helper function to check if size is non-negative. - // Generate GL error and return false for negative inputs; otherwise, return true. - bool validateSize(const char* functionName, GC3Dint x, GC3Dint y); - - // Helper function to check if all characters in the string belong to the - // ASCII subset as defined in GLSL ES 1.0 spec section 3.1. - bool validateString(const char* functionName, const String&); - - // Helper function to check target and texture bound to the target. - // Generate GL errors and return 0 if target is invalid or texture bound is - // null. Otherwise, return the texture bound to the target. - WebGLTexture* validateTextureBinding(const char* functionName, GC3Denum target, bool useSixEnumsForCubeMap); - - // Helper function to check input format/type for functions {copy}Tex{Sub}Image. - // Generates GL error and returns false if parameters are invalid. - bool validateTexFuncFormatAndType(const char* functionName, GC3Denum format, GC3Denum type, GC3Dint level); - - // Helper function to check input level for functions {copy}Tex{Sub}Image. - // Generates GL error and returns false if level is invalid. - bool validateTexFuncLevel(const char* functionName, GC3Denum target, GC3Dint level); - - enum TexFuncValidationFunctionType { - NotTexSubImage2D, - TexSubImage2D, - }; - - enum TexFuncValidationSourceType { - SourceArrayBufferView, - SourceImageData, - SourceHTMLImageElement, - SourceHTMLCanvasElement, - SourceHTMLVideoElement, - }; - - // Helper function for tex{Sub}Image2D to check if the input format/type/level/target/width/height/border/xoffset/yoffset are valid. - // Otherwise, it would return quickly without doing other work. - bool validateTexFunc(const char* functionName, TexFuncValidationFunctionType, TexFuncValidationSourceType, GC3Denum target, GC3Dint level, GC3Denum internalformat, GC3Dsizei width, - GC3Dsizei height, GC3Dint border, GC3Denum format, GC3Denum type, GC3Dint xoffset, GC3Dint yoffset); - - // Helper function to check input parameters for functions {copy}Tex{Sub}Image. - // Generates GL error and returns false if parameters are invalid. - bool validateTexFuncParameters(const char* functionName, - TexFuncValidationFunctionType, - GC3Denum target, GC3Dint level, - GC3Denum internalformat, - GC3Dsizei width, GC3Dsizei height, GC3Dint border, - GC3Denum format, GC3Denum type); - - enum NullDisposition { - NullAllowed, - NullNotAllowed - }; - - // Helper function to validate that the given ArrayBufferView - // is of the correct type and contains enough data for the texImage call. - // Generates GL error and returns false if parameters are invalid. - bool validateTexFuncData(const char* functionName, GC3Dint level, - GC3Dsizei width, GC3Dsizei height, - GC3Denum format, GC3Denum type, - ArrayBufferView* pixels, - NullDisposition); - - // Helper function to validate a given texture format is settable as in - // you can supply data to texImage2D, or call texImage2D, copyTexImage2D and - // copyTexSubImage2D. - // Generates GL error and returns false if the format is not settable. - bool validateSettableTexFormat(const char* functionName, GC3Denum format); - - // Helper function to validate compressed texture data is correct size - // for the given format and dimensions. - bool validateCompressedTexFuncData(const char* functionName, - GC3Dsizei width, GC3Dsizei height, - GC3Denum format, ArrayBufferView* pixels); - - // Helper function for validating compressed texture formats. - bool validateCompressedTexFormat(GC3Denum format); - - // Helper function to validate compressed texture dimensions are valid for - // the given format. - bool validateCompressedTexDimensions(const char* functionName, GC3Denum target, GC3Dint level, GC3Dsizei width, GC3Dsizei height, GC3Denum format); - - // Helper function to validate compressed texture dimensions are valid for - // the given format. - bool validateCompressedTexSubDimensions(const char* functionName, GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, - GC3Dsizei width, GC3Dsizei height, GC3Denum format, WebGLTexture*); - - // Helper function to validate mode for draw{Arrays/Elements}. - bool validateDrawMode(const char* functionName, GC3Denum); - - // Helper function to validate if front/back stencilMask and stencilFunc settings are the same. - bool validateStencilSettings(const char* functionName); - - // Helper function to validate stencil func. - bool validateStencilFunc(const char* functionName, GC3Denum); - - // Helper function for texParameterf and texParameteri. - void texParameter(GC3Denum target, GC3Denum pname, GC3Dfloat parami, GC3Dint paramf, bool isFloat); - - // Helper function to print GL errors to console. - void printGLErrorToConsole(const String&); - void printGLWarningToConsole(const char* function, const char* reason); - - // Helper function to print warnings to console. Currently - // used only to warn about use of obsolete functions. - void printWarningToConsole(const String&); - - // Helper function to validate input parameters for framebuffer functions. - // Generate GL error if parameters are illegal. - bool validateFramebufferFuncParameters(const char* functionName, GC3Denum target, GC3Denum attachment); - - // Helper function to validate blend equation mode. - bool validateBlendEquation(const char* functionName, GC3Denum); - - // Helper function to validate blend func factors. - bool validateBlendFuncFactors(const char* functionName, GC3Denum src, GC3Denum dst); - - // Helper function to validate a GL capability. - bool validateCapability(const char* functionName, GC3Denum); - - // Helper function to validate input parameters for uniform functions. - bool validateUniformParameters(const char* functionName, const WebGLUniformLocation*, Float32Array*, GC3Dsizei mod); - bool validateUniformParameters(const char* functionName, const WebGLUniformLocation*, Int32Array*, GC3Dsizei mod); - bool validateUniformParameters(const char* functionName, const WebGLUniformLocation*, void*, GC3Dsizei, GC3Dsizei mod); - bool validateUniformMatrixParameters(const char* functionName, const WebGLUniformLocation*, GC3Dboolean transpose, Float32Array*, GC3Dsizei mod); - bool validateUniformMatrixParameters(const char* functionName, const WebGLUniformLocation*, GC3Dboolean transpose, void*, GC3Dsizei, GC3Dsizei mod); - - // Helper function to validate parameters for bufferData. - // Return the current bound buffer to target, or 0 if parameters are invalid. - WebGLBuffer* validateBufferDataParameters(const char* functionName, GC3Denum target, GC3Denum usage); - - // Helper function for tex{Sub}Image2D to make sure image is ready and wouldn't taint Origin. - bool validateHTMLImageElement(const char* functionName, HTMLImageElement*, ExceptionCode&); - - // Helper function for tex{Sub}Image2D to make sure canvas is ready and wouldn't taint Origin. - bool validateHTMLCanvasElement(const char* functionName, HTMLCanvasElement*, ExceptionCode&); - -#if ENABLE(VIDEO) - // Helper function for tex{Sub}Image2D to make sure video is ready wouldn't taint Origin. - bool validateHTMLVideoElement(const char* functionName, HTMLVideoElement*, ExceptionCode&); -#endif - - // Helper functions for vertexAttribNf{v}. - void vertexAttribfImpl(const char* functionName, GC3Duint index, GC3Dsizei expectedSize, GC3Dfloat, GC3Dfloat, GC3Dfloat, GC3Dfloat); - void vertexAttribfvImpl(const char* functionName, GC3Duint index, Float32Array*, GC3Dsizei expectedSize); - void vertexAttribfvImpl(const char* functionName, GC3Duint index, GC3Dfloat*, GC3Dsizei, GC3Dsizei expectedSize); - - // Helper function for delete* (deleteBuffer, deleteProgram, etc) functions. - // Return false if caller should return without further processing. - bool deleteObject(WebGLObject*); - - // Helper function for bind* (bindBuffer, bindTexture, etc) and useProgram. - // If the object has already been deleted, set deleted to true upon return. - // Return false if caller should return without further processing. - bool checkObjectToBeBound(const char* functionName, WebGLObject*, bool& deleted); - - // Helpers for simulating vertexAttrib0 - void initVertexAttrib0(); - bool simulateVertexAttrib0(GC3Dsizei numVertex); - void restoreStatesAfterVertexAttrib0Simulation(); - - void dispatchContextLostEvent(Timer<WebGLRenderingContext>*); - // Helper for restoration after context lost. - void maybeRestoreContext(Timer<WebGLRenderingContext>*); - - // Determine if we are running privileged code in the browser, for example, - // a Safari or Chrome extension. - bool allowPrivilegedExtensions() const; - - enum ConsoleDisplayPreference { - DisplayInConsole, - DontDisplayInConsole - }; - - // Wrapper for GraphicsContext3D::synthesizeGLError that sends a message - // to the JavaScript console. - void synthesizeGLError(GC3Denum, const char* functionName, const char* description, ConsoleDisplayPreference = DisplayInConsole); - - String ensureNotNull(const String&) const; - - // Enable or disable stencil test based on user setting and - // whether the current FBO has a stencil buffer. - void applyStencilTest(); - - // Helper for enabling or disabling a capability. - void enableOrDisable(GC3Denum capability, bool enable); - - // Clamp the width and height to GL_MAX_VIEWPORT_DIMS. - IntSize clampedCanvasSize(); - - // First time called, if EXT_draw_buffers is supported, query the value; otherwise return 0. - // Later, return the cached value. - GC3Dint getMaxDrawBuffers(); - GC3Dint getMaxColorAttachments(); - - void setBackDrawBuffer(GC3Denum); - - void restoreCurrentFramebuffer(); - void restoreCurrentTexture2D(); - - // Check if EXT_draw_buffers extension is supported and if it satisfies the WebGL requirements. - bool supportsDrawBuffers(); - - friend class WebGLStateRestorer; + bool isWebGL1() const final { return true; } + + WebGLExtension* getExtension(const String&) final; + WebGLAny getParameter(GC3Denum pname) final; + std::optional<Vector<String>> getSupportedExtensions() final; + + WebGLAny getFramebufferAttachmentParameter(GC3Denum target, GC3Denum attachment, GC3Denum pname) final; + void renderbufferStorage(GC3Denum target, GC3Denum internalformat, GC3Dsizei width, GC3Dsizei height) final; + bool validateFramebufferFuncParameters(const char* functionName, GC3Denum target, GC3Denum attachment) final; + void hint(GC3Denum target, GC3Denum mode) final; + void clear(GC3Dbitfield mask) final; + + GC3Dint getMaxDrawBuffers() final; + GC3Dint getMaxColorAttachments() final; + void initializeVertexArrayObjects() final; + bool validateIndexArrayConservative(GC3Denum type, unsigned& numElementsRequired) final; + bool validateBlendEquation(const char* functionName, GC3Denum mode) final; + bool validateCapability(const char* functionName, GC3Denum cap) final; }; - + } // namespace WebCore -#endif +SPECIALIZE_TYPE_TRAITS_CANVASRENDERINGCONTEXT(WebCore::WebGLRenderingContext, isWebGL1()) |