/* * Copyright (C) 2009, 2014-2019 Apple Inc. All rights reserved. * * 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 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 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 * 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. */ #pragma once #if ENABLE(WEBGL) && USE(ANGLE) #include "ANGLEUtilities.h" #include "GraphicsContextGL.h" #include "GraphicsContextGLState.h" #include #include #if PLATFORM(COCOA) #include "GraphicsContextGLIOSurfaceSwapChain.h" #include "IOSurface.h" #include "ProcessIdentity.h" #endif namespace WebCore { // Base class for GraphicsContextGL contexts that use ANGLE. class WEBCORE_EXPORT GraphicsContextGLANGLE : public GraphicsContextGL { public: virtual ~GraphicsContextGLANGLE(); GCGLDisplay platformDisplay() const; GCGLConfig platformConfig() const; GCGLenum drawingBufferTextureTarget(); static GCGLenum drawingBufferTextureTargetQueryForDrawingTarget(GCGLenum drawingTarget); static GCGLint EGLDrawingBufferTextureTargetForDrawingTarget(GCGLenum drawingTarget); enum class ReleaseThreadResourceBehavior { // Releases current context after GraphicsContextGLANGLE calls done in the thread. ReleaseCurrentContext, // Releases all thread resources after GraphicsContextGLANGLE calls done in the thread. ReleaseThreadResources, // Releases all global state. Should be used only after all depending objects have // been released. TerminateAndReleaseThreadResources }; static bool releaseThreadResources(ReleaseThreadResourceBehavior); // Get an attribute location without checking the name -> mangledname mapping. int getAttribLocationDirect(PlatformGLObject program, const String& name); // Compile a shader without going through ANGLE. void compileShaderDirect(PlatformGLObject); // Equivalent to ::glTexImage2D(). Allows pixels==0 with no allocation. void texImage2DDirect(GCGLenum target, GCGLint level, GCGLenum internalformat, GCGLsizei width, GCGLsizei height, GCGLint border, GCGLenum format, GCGLenum type, const void* pixels); // GraphicsContextGL overrides. bool isGLES2Compliant() const final; void activeTexture(GCGLenum texture) final; void attachShader(PlatformGLObject program, PlatformGLObject shader) final; void bindAttribLocation(PlatformGLObject, GCGLuint index, const String& name) final; void bindBuffer(GCGLenum target, PlatformGLObject) final; void bindFramebuffer(GCGLenum target, PlatformGLObject) final; void bindRenderbuffer(GCGLenum target, PlatformGLObject) final; void bindTexture(GCGLenum target, PlatformGLObject) final; void blendColor(GCGLclampf red, GCGLclampf green, GCGLclampf blue, GCGLclampf alpha) final; void blendEquation(GCGLenum mode) final; void blendEquationSeparate(GCGLenum modeRGB, GCGLenum modeAlpha) final; void blendFunc(GCGLenum sfactor, GCGLenum dfactor) final; void blendFuncSeparate(GCGLenum srcRGB, GCGLenum dstRGB, GCGLenum srcAlpha, GCGLenum dstAlpha) final; void bufferData(GCGLenum target, GCGLsizeiptr, GCGLenum usage) final; void bufferData(GCGLenum target, GCGLSpan data, GCGLenum usage) final; void bufferSubData(GCGLenum target, GCGLintptr offset, GCGLSpan data) final; GCGLenum checkFramebufferStatus(GCGLenum target) final; void clear(GCGLbitfield mask) final; void clearColor(GCGLclampf red, GCGLclampf green, GCGLclampf blue, GCGLclampf alpha) final; void clearDepth(GCGLclampf depth) final; void clearStencil(GCGLint s) final; void colorMask(GCGLboolean red, GCGLboolean green, GCGLboolean blue, GCGLboolean alpha) final; void compileShader(PlatformGLObject) final; void copyTexImage2D(GCGLenum target, GCGLint level, GCGLenum internalformat, GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height, GCGLint border) final; void copyTexSubImage2D(GCGLenum target, GCGLint level, GCGLint xoffset, GCGLint yoffset, GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height) final; void cullFace(GCGLenum mode) final; void depthFunc(GCGLenum func) final; void depthMask(GCGLboolean flag) final; void depthRange(GCGLclampf zNear, GCGLclampf zFar) final; void detachShader(PlatformGLObject, PlatformGLObject) final; void disable(GCGLenum cap) final; void disableVertexAttribArray(GCGLuint index) final; void drawArrays(GCGLenum mode, GCGLint first, GCGLsizei count) final; void drawElements(GCGLenum mode, GCGLsizei count, GCGLenum type, GCGLintptr offset) final; void enable(GCGLenum cap) final; void enableVertexAttribArray(GCGLuint index) final; void finish() final; void flush() final; void framebufferRenderbuffer(GCGLenum target, GCGLenum attachment, GCGLenum renderbuffertarget, PlatformGLObject) final; void framebufferTexture2D(GCGLenum target, GCGLenum attachment, GCGLenum textarget, PlatformGLObject, GCGLint level) final; void frontFace(GCGLenum mode) final; void generateMipmap(GCGLenum target) final; bool getActiveAttrib(PlatformGLObject program, GCGLuint index, ActiveInfo&) final; bool getActiveAttribImpl(PlatformGLObject program, GCGLuint index, ActiveInfo&); bool getActiveUniform(PlatformGLObject program, GCGLuint index, ActiveInfo&) final; bool getActiveUniformImpl(PlatformGLObject program, GCGLuint index, ActiveInfo&); void getAttachedShaders(PlatformGLObject program, GCGLsizei maxCount, GCGLsizei* count, PlatformGLObject* shaders); GCGLint getAttribLocation(PlatformGLObject, const String& name) final; void getBooleanv(GCGLenum pname, GCGLSpan value) final; GCGLint getBufferParameteri(GCGLenum target, GCGLenum pname) final; GCGLenum getError() final; void getFloatv(GCGLenum pname, GCGLSpan value) final; GCGLint getFramebufferAttachmentParameteri(GCGLenum target, GCGLenum attachment, GCGLenum pname) final; void getIntegerv(GCGLenum pname, GCGLSpan value) final; void getIntegeri_v(GCGLenum pname, GCGLuint index, GCGLSpan value) final; // NOLINT GCGLint64 getInteger64(GCGLenum pname) final; GCGLint64 getInteger64i(GCGLenum pname, GCGLuint index) final; GCGLint getProgrami(PlatformGLObject program, GCGLenum pname) final; String getProgramInfoLog(PlatformGLObject) final; String getUnmangledInfoLog(PlatformGLObject[2], GCGLsizei, const String&); GCGLint getRenderbufferParameteri(GCGLenum target, GCGLenum pname) final; GCGLint getShaderi(PlatformGLObject, GCGLenum pname) final; String getShaderInfoLog(PlatformGLObject) final; void getShaderPrecisionFormat(GCGLenum shaderType, GCGLenum precisionType, GCGLSpan range, GCGLint* precision) final; String getShaderSource(PlatformGLObject) final; String getString(GCGLenum name) final; GCGLfloat getTexParameterf(GCGLenum target, GCGLenum pname) final; GCGLint getTexParameteri(GCGLenum target, GCGLenum pname) final; void getUniformfv(PlatformGLObject program, GCGLint location, GCGLSpan value) final; void getUniformiv(PlatformGLObject program, GCGLint location, GCGLSpan value) final; void getUniformuiv(PlatformGLObject program, GCGLint location, GCGLSpan value) final; GCGLint getUniformLocation(PlatformGLObject, const String& name) final; GCGLsizeiptr getVertexAttribOffset(GCGLuint index, GCGLenum pname) final; void hint(GCGLenum target, GCGLenum mode) final; GCGLboolean isBuffer(PlatformGLObject) final; GCGLboolean isEnabled(GCGLenum cap) final; GCGLboolean isFramebuffer(PlatformGLObject) final; GCGLboolean isProgram(PlatformGLObject) final; GCGLboolean isRenderbuffer(PlatformGLObject) final; GCGLboolean isShader(PlatformGLObject) final; GCGLboolean isTexture(PlatformGLObject) final; void lineWidth(GCGLfloat) final; void linkProgram(PlatformGLObject) final; void pixelStorei(GCGLenum pname, GCGLint param) final; void polygonOffset(GCGLfloat factor, GCGLfloat units) final; void readnPixels(GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLenum type, GCGLSpan data) final; void readnPixels(GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLenum type, GCGLintptr offset) final; void renderbufferStorage(GCGLenum target, GCGLenum internalformat, GCGLsizei width, GCGLsizei height) final; void sampleCoverage(GCGLclampf value, GCGLboolean invert) final; void scissor(GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height) final; void shaderSource(PlatformGLObject, const String&) final; void stencilFunc(GCGLenum func, GCGLint ref, GCGLuint mask) final; void stencilFuncSeparate(GCGLenum face, GCGLenum func, GCGLint ref, GCGLuint mask) final; void stencilMask(GCGLuint mask) final; void stencilMaskSeparate(GCGLenum face, GCGLuint mask) final; void stencilOp(GCGLenum fail, GCGLenum zfail, GCGLenum zpass) final; void stencilOpSeparate(GCGLenum face, GCGLenum fail, GCGLenum zfail, GCGLenum zpass) final; void texImage2D(GCGLenum target, GCGLint level, GCGLenum internalformat, GCGLsizei width, GCGLsizei height, GCGLint border, GCGLenum format, GCGLenum type, GCGLSpan pixels) final; void texImage2D(GCGLenum target, GCGLint level, GCGLenum internalformat, GCGLsizei width, GCGLsizei height, GCGLint border, GCGLenum format, GCGLenum type, GCGLintptr offset) final; void texSubImage2D(GCGLenum target, GCGLint level, GCGLint xoffset, GCGLint yoffset, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLenum type, GCGLSpan pixels) final; void texSubImage2D(GCGLenum target, GCGLint level, GCGLint xoffset, GCGLint yoffset, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLenum type, GCGLintptr offset) final; void compressedTexImage2D(GCGLenum target, GCGLint level, GCGLenum internalformat, GCGLsizei width, GCGLsizei height, GCGLint border, GCGLsizei imageSize, GCGLSpan data) final; void compressedTexImage2D(GCGLenum target, GCGLint level, GCGLenum internalformat, GCGLsizei width, GCGLsizei height, GCGLint border, GCGLsizei imageSize, GCGLintptr offset) final; void compressedTexSubImage2D(GCGLenum target, GCGLint level, GCGLint xoffset, GCGLint yoffset, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLsizei imageSize, GCGLSpan data) final; void compressedTexSubImage2D(GCGLenum target, GCGLint level, GCGLint xoffset, GCGLint yoffset, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLsizei imageSize, GCGLintptr offset) final; void texParameterf(GCGLenum target, GCGLenum pname, GCGLfloat param) final; void texParameteri(GCGLenum target, GCGLenum pname, GCGLint param) final; void uniform1f(GCGLint location, GCGLfloat x) final; void uniform1fv(GCGLint location, GCGLSpan v) final; void uniform1i(GCGLint location, GCGLint x) final; void uniform1iv(GCGLint location, GCGLSpan v) final; void uniform2f(GCGLint location, GCGLfloat x, GCGLfloat y) final; void uniform2fv(GCGLint location, GCGLSpan v) final; void uniform2i(GCGLint location, GCGLint x, GCGLint y) final; void uniform2iv(GCGLint location, GCGLSpan v) final; void uniform3f(GCGLint location, GCGLfloat x, GCGLfloat y, GCGLfloat z) final; void uniform3fv(GCGLint location, GCGLSpan v) final; void uniform3i(GCGLint location, GCGLint x, GCGLint y, GCGLint z) final; void uniform3iv(GCGLint location, GCGLSpan v) final; void uniform4f(GCGLint location, GCGLfloat x, GCGLfloat y, GCGLfloat z, GCGLfloat w) final; void uniform4fv(GCGLint location, GCGLSpan v) final; void uniform4i(GCGLint location, GCGLint x, GCGLint y, GCGLint z, GCGLint w) final; void uniform4iv(GCGLint location, GCGLSpan v) final; void uniformMatrix2fv(GCGLint location, GCGLboolean transpose, GCGLSpan value) final; void uniformMatrix3fv(GCGLint location, GCGLboolean transpose, GCGLSpan value) final; void uniformMatrix4fv(GCGLint location, GCGLboolean transpose, GCGLSpan value) final; void useProgram(PlatformGLObject) final; void validateProgram(PlatformGLObject) final; void vertexAttrib1f(GCGLuint index, GCGLfloat x) final; void vertexAttrib1fv(GCGLuint index, GCGLSpan values) final; void vertexAttrib2f(GCGLuint index, GCGLfloat x, GCGLfloat y) final; void vertexAttrib2fv(GCGLuint index, GCGLSpan values) final; void vertexAttrib3f(GCGLuint index, GCGLfloat x, GCGLfloat y, GCGLfloat z) final; void vertexAttrib3fv(GCGLuint index, GCGLSpan values) final; void vertexAttrib4f(GCGLuint index, GCGLfloat x, GCGLfloat y, GCGLfloat z, GCGLfloat w) final; void vertexAttrib4fv(GCGLuint index, GCGLSpan values) final; void vertexAttribPointer(GCGLuint index, GCGLint size, GCGLenum type, GCGLboolean normalized, GCGLsizei stride, GCGLintptr offset) final; void viewport(GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height) final; void reshape(int width, int height) final; void drawArraysInstanced(GCGLenum mode, GCGLint first, GCGLsizei count, GCGLsizei primcount) final; void drawElementsInstanced(GCGLenum mode, GCGLsizei count, GCGLenum type, GCGLintptr offset, GCGLsizei primcount) final; void vertexAttribDivisor(GCGLuint index, GCGLuint divisor) final; PlatformGLObject createVertexArray() final; void deleteVertexArray(PlatformGLObject) final; GCGLboolean isVertexArray(PlatformGLObject) final; void bindVertexArray(PlatformGLObject) final; void copyBufferSubData(GCGLenum readTarget, GCGLenum writeTarget, GCGLintptr readOffset, GCGLintptr writeOffset, GCGLsizeiptr) final; void getBufferSubData(GCGLenum target, GCGLintptr offset, GCGLSpan data) final; void blitFramebuffer(GCGLint srcX0, GCGLint srcY0, GCGLint srcX1, GCGLint srcY1, GCGLint dstX0, GCGLint dstY0, GCGLint dstX1, GCGLint dstY1, GCGLbitfield mask, GCGLenum filter) final; void framebufferTextureLayer(GCGLenum target, GCGLenum attachment, PlatformGLObject texture, GCGLint level, GCGLint layer) final; void invalidateFramebuffer(GCGLenum target, GCGLSpan attachments) final; void invalidateSubFramebuffer(GCGLenum target, GCGLSpan attachments, GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height) final; void readBuffer(GCGLenum src) final; void getInternalformativ(GCGLenum target, GCGLenum internalformat, GCGLenum pname, GCGLSpan data) final; void renderbufferStorageMultisample(GCGLenum target, GCGLsizei samples, GCGLenum internalformat, GCGLsizei width, GCGLsizei height) final; void texStorage2D(GCGLenum target, GCGLsizei levels, GCGLenum internalformat, GCGLsizei width, GCGLsizei height) final; void texStorage3D(GCGLenum target, GCGLsizei levels, GCGLenum internalformat, GCGLsizei width, GCGLsizei height, GCGLsizei depth) final; void texImage3D(GCGLenum target, GCGLint level, GCGLint internalformat, GCGLsizei width, GCGLsizei height, GCGLsizei depth, GCGLint border, GCGLenum format, GCGLenum type, GCGLSpan pixels) final; void texImage3D(GCGLenum target, GCGLint level, GCGLint internalformat, GCGLsizei width, GCGLsizei height, GCGLsizei depth, GCGLint border, GCGLenum format, GCGLenum type, GCGLintptr offset) final; void texSubImage3D(GCGLenum target, GCGLint level, GCGLint xoffset, GCGLint yoffset, GCGLint zoffset, GCGLsizei width, GCGLsizei height, GCGLsizei depth, GCGLenum format, GCGLenum type, GCGLSpan pixels) final; void texSubImage3D(GCGLenum target, GCGLint level, GCGLint xoffset, GCGLint yoffset, GCGLint zoffset, GCGLsizei width, GCGLsizei height, GCGLsizei depth, GCGLenum format, GCGLenum type, GCGLintptr offset) final; void copyTexSubImage3D(GCGLenum target, GCGLint level, GCGLint xoffset, GCGLint yoffset, GCGLint zoffset, GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height) final; void compressedTexImage3D(GCGLenum target, GCGLint level, GCGLenum internalformat, GCGLsizei width, GCGLsizei height, GCGLsizei depth, GCGLint border, GCGLsizei imageSize, GCGLSpan data) final; void compressedTexImage3D(GCGLenum target, GCGLint level, GCGLenum internalformat, GCGLsizei width, GCGLsizei height, GCGLsizei depth, GCGLint border, GCGLsizei imageSize, GCGLintptr offset) final; void compressedTexSubImage3D(GCGLenum target, GCGLint level, GCGLint xoffset, GCGLint yoffset, GCGLint zoffset, GCGLsizei width, GCGLsizei height, GCGLsizei depth, GCGLenum format, GCGLsizei imageSize, GCGLSpan data) final; void compressedTexSubImage3D(GCGLenum target, GCGLint level, GCGLint xoffset, GCGLint yoffset, GCGLint zoffset, GCGLsizei width, GCGLsizei height, GCGLsizei depth, GCGLenum format, GCGLsizei imageSize, GCGLintptr offset) final; GCGLint getFragDataLocation(PlatformGLObject program, const String& name) final; void uniform1ui(GCGLint location, GCGLuint v0) final; void uniform2ui(GCGLint location, GCGLuint v0, GCGLuint v1) final; void uniform3ui(GCGLint location, GCGLuint v0, GCGLuint v1, GCGLuint v2) final; void uniform4ui(GCGLint location, GCGLuint v0, GCGLuint v1, GCGLuint v2, GCGLuint v3) final; void uniform1uiv(GCGLint location, GCGLSpan) final; void uniform2uiv(GCGLint location, GCGLSpan) final; void uniform3uiv(GCGLint location, GCGLSpan) final; void uniform4uiv(GCGLint location, GCGLSpan) final; void uniformMatrix2x3fv(GCGLint location, GCGLboolean transpose, GCGLSpan data) final; void uniformMatrix3x2fv(GCGLint location, GCGLboolean transpose, GCGLSpan data) final; void uniformMatrix2x4fv(GCGLint location, GCGLboolean transpose, GCGLSpan data) final; void uniformMatrix4x2fv(GCGLint location, GCGLboolean transpose, GCGLSpan data) final; void uniformMatrix3x4fv(GCGLint location, GCGLboolean transpose, GCGLSpan data) final; void uniformMatrix4x3fv(GCGLint location, GCGLboolean transpose, GCGLSpan data) final; void vertexAttribI4i(GCGLuint index, GCGLint x, GCGLint y, GCGLint z, GCGLint w) final; void vertexAttribI4iv(GCGLuint index, GCGLSpan values) final; void vertexAttribI4ui(GCGLuint index, GCGLuint x, GCGLuint y, GCGLuint z, GCGLuint w) final; void vertexAttribI4uiv(GCGLuint index, GCGLSpan values) final; void vertexAttribIPointer(GCGLuint index, GCGLint size, GCGLenum type, GCGLsizei stride, GCGLintptr offset) final; void drawRangeElements(GCGLenum mode, GCGLuint start, GCGLuint end, GCGLsizei count, GCGLenum type, GCGLintptr offset) final; void drawBuffers(GCGLSpan bufs) final; void clearBufferiv(GCGLenum buffer, GCGLint drawbuffer, GCGLSpan values) final; void clearBufferuiv(GCGLenum buffer, GCGLint drawbuffer, GCGLSpan values) final; void clearBufferfv(GCGLenum buffer, GCGLint drawbuffer, GCGLSpan values) final; void clearBufferfi(GCGLenum buffer, GCGLint drawbuffer, GCGLfloat depth, GCGLint stencil) final; PlatformGLObject createQuery() final; void deleteQuery(PlatformGLObject query) final; GCGLboolean isQuery(PlatformGLObject query) final; void beginQuery(GCGLenum target, PlatformGLObject query) final; void endQuery(GCGLenum target) final; PlatformGLObject getQuery(GCGLenum target, GCGLenum pname) final; GCGLuint getQueryObjectui(PlatformGLObject query, GCGLenum pname) final; PlatformGLObject createSampler() final; void deleteSampler(PlatformGLObject sampler) final; GCGLboolean isSampler(PlatformGLObject sampler) final; void bindSampler(GCGLuint unit, PlatformGLObject sampler) final; void samplerParameteri(PlatformGLObject sampler, GCGLenum pname, GCGLint param) final; void samplerParameterf(PlatformGLObject sampler, GCGLenum pname, GCGLfloat param) final; GCGLfloat getSamplerParameterf(PlatformGLObject sampler, GCGLenum pname) final; GCGLint getSamplerParameteri(PlatformGLObject sampler, GCGLenum pname) final; GCGLsync fenceSync(GCGLenum condition, GCGLbitfield flags) final; GCGLboolean isSync(GCGLsync) final; void deleteSync(GCGLsync) final; GCGLenum clientWaitSync(GCGLsync, GCGLbitfield flags, GCGLuint64 timeout) final; void waitSync(GCGLsync, GCGLbitfield flags, GCGLint64 timeout) final; GCGLint getSynci(GCGLsync, GCGLenum pname) final; PlatformGLObject createTransformFeedback() final; void deleteTransformFeedback(PlatformGLObject id) final; GCGLboolean isTransformFeedback(PlatformGLObject id) final; void bindTransformFeedback(GCGLenum target, PlatformGLObject id) final; void beginTransformFeedback(GCGLenum primitiveMode) final; void endTransformFeedback() final; void transformFeedbackVaryings(PlatformGLObject program, const Vector& varyings, GCGLenum bufferMode) final; void getTransformFeedbackVarying(PlatformGLObject program, GCGLuint index, ActiveInfo&) final; void pauseTransformFeedback() final; void resumeTransformFeedback() final; void bindBufferBase(GCGLenum target, GCGLuint index, PlatformGLObject buffer) final; void bindBufferRange(GCGLenum target, GCGLuint index, PlatformGLObject buffer, GCGLintptr offset, GCGLsizeiptr) final; Vector getUniformIndices(PlatformGLObject program, const Vector& uniformNames) final; Vector getActiveUniforms(PlatformGLObject program, const Vector& uniformIndices, GCGLenum pname) final; GCGLuint getUniformBlockIndex(PlatformGLObject program, const String& uniformBlockName) final; String getActiveUniformBlockName(PlatformGLObject program, GCGLuint uniformBlockIndex) final; void uniformBlockBinding(PlatformGLObject program, GCGLuint uniformBlockIndex, GCGLuint uniformBlockBinding) final; void getActiveUniformBlockiv(GCGLuint program, GCGLuint uniformBlockIndex, GCGLenum pname, GCGLSpan params) final; void multiDrawArraysANGLE(GCGLenum mode, GCGLSpanTuple firstsAndCounts) final; void multiDrawArraysInstancedANGLE(GCGLenum mode, GCGLSpanTuple firstsCountsAndInstanceCounts) final; void multiDrawElementsANGLE(GCGLenum mode, GCGLSpanTuple countsAndOffsets, GCGLenum type) final; void multiDrawElementsInstancedANGLE(GCGLenum mode, GCGLSpanTuple countsOffsetsAndInstanceCounts, GCGLenum type) final; bool supportsExtension(const String&) override; void ensureExtensionEnabled(const String&) override; bool isExtensionEnabled(const String&) override; void drawBuffersEXT(GCGLSpan) override; String getTranslatedShaderSourceANGLE(PlatformGLObject) override; void enableiOES(GCGLenum target, GCGLuint index) final; void disableiOES(GCGLenum target, GCGLuint index) final; void blendEquationiOES(GCGLuint buf, GCGLenum mode) final; void blendEquationSeparateiOES(GCGLuint buf, GCGLenum modeRGB, GCGLenum modeAlpha) final; void blendFunciOES(GCGLuint buf, GCGLenum src, GCGLenum dst) final; void blendFuncSeparateiOES(GCGLuint buf, GCGLenum srcRGB, GCGLenum dstRGB, GCGLenum srcAlpha, GCGLenum dstAlpha) final; void colorMaskiOES(GCGLuint buf, GCGLboolean red, GCGLboolean green, GCGLboolean blue, GCGLboolean alpha) final; PlatformGLObject createBuffer() final; PlatformGLObject createFramebuffer() final; PlatformGLObject createProgram() final; PlatformGLObject createRenderbuffer() final; PlatformGLObject createShader(GCGLenum) final; PlatformGLObject createTexture() final; void deleteBuffer(PlatformGLObject) final; void deleteFramebuffer(PlatformGLObject) final; void deleteProgram(PlatformGLObject) final; void deleteRenderbuffer(PlatformGLObject) final; void deleteShader(PlatformGLObject) final; void deleteTexture(PlatformGLObject) final; void synthesizeGLError(GCGLenum error) final; bool moveErrorsToSyntheticErrorList() final; void simulateEventForTesting(SimulatedEventForTesting) override; void paintRenderingResultsToCanvas(ImageBuffer&) final; RefPtr paintRenderingResultsToPixelBuffer() final; void paintCompositedResultsToCanvas(ImageBuffer&) final; RefPtr readRenderingResultsForPainting(); RefPtr readCompositedResultsForPainting(); protected: GraphicsContextGLANGLE(GraphicsContextGLAttributes); // Called once by all the public entry points that eventually call OpenGL. bool makeContextCurrent() WARN_UNUSED_RETURN; // Initializes the instance. Returns false if the instance should not be used. bool initialize(); // Called first by initialize(). Subclasses should override to instantiate the platform specific bits of EGLContext. // FIXME: Currently platforms do not share the context creation. They should. virtual bool platformInitializeContext(); // Called last by initialize(). Subclasses should override to instantiate platform specific state that depend on // the shared state. virtual bool platformInitialize(); // Take into account the user's requested context creation attributes, // in particular stencil and antialias, and determine which could or // could not be honored based on the capabilities of the OpenGL // implementation. void validateDepthStencil(ASCIILiteral packedDepthStencilExtension); void validateAttributes(); void readnPixelsImpl(GCGLint x, GCGLint y, GCGLsizei width, GCGLsizei height, GCGLenum format, GCGLenum type, GCGLsizei bufSize, GCGLsizei* length, GCGLsizei* columns, GCGLsizei* rows, GCGLvoid* data, bool readingToPixelBufferObject); // Did the most recent drawing operation leave the GPU in an acceptable state? void checkGPUStatus(); RefPtr readRenderingResults(); RefPtr readCompositedResults(); RefPtr readPixelsForPaintResults(); bool reshapeFBOs(const IntSize&); virtual void prepareTexture(); void resolveMultisamplingIfNecessary(const IntRect& = IntRect()); void attachDepthAndStencilBufferIfNeeded(GCGLuint internalDepthStencilFormat, int width, int height); #if PLATFORM(COCOA) static bool makeCurrent(GCGLDisplay, GCGLContext); #endif virtual bool reshapeDisplayBufferBacking() = 0; // Returns false if context should be lost due to timeout. bool waitAndUpdateOldestFrame() WARN_UNUSED_RETURN; // Platform specific behavior for releaseResources(); static void platformReleaseThreadResources(); virtual void invalidateKnownTextureContent(GCGLuint); // Only for non-WebGL 2.0 contexts. GCGLenum adjustWebGL1TextureInternalFormat(GCGLenum internalformat, GCGLenum format, GCGLenum type); HashSet m_availableExtensions; HashSet m_requestableExtensions; HashSet m_enabledExtensions; bool m_webglColorBufferFloatRGB { false }; bool m_webglColorBufferFloatRGBA { false }; GCGLuint m_texture { 0 }; GCGLuint m_fbo { 0 }; GCGLuint m_depthStencilBuffer { 0 }; GCGLuint m_internalColorFormat { 0 }; GCGLuint m_internalDepthStencilFormat { 0 }; GCGLuint m_multisampleFBO { 0 }; GCGLuint m_multisampleDepthStencilBuffer { 0 }; GCGLuint m_multisampleColorBuffer { 0 }; // For preserveDrawingBuffer:true without multisampling. GCGLuint m_preserveDrawingBufferTexture { 0 }; // Attaches m_texture when m_preserveDrawingBufferTexture is non-zero. GCGLuint m_preserveDrawingBufferFBO { 0 }; // Queried at display startup. GCGLint m_drawingBufferTextureTarget { -1 }; // Errors raised by synthesizeGLError(). ListHashSet m_syntheticErrors; bool m_isForWebGL2 { false }; unsigned m_statusCheckCount { 0 }; bool m_failNextStatusCheck { false }; bool m_useFenceSyncForDisplayRateLimit = false; static constexpr size_t maxPendingFrames = 3; size_t m_oldestFrameCompletionFence { 0 }; ScopedGLFence m_frameCompletionFences[maxPendingFrames]; GraphicsContextGLState m_state; GCGLDisplay m_displayObj { nullptr }; GCGLContext m_contextObj { nullptr }; GCGLConfig m_configObj { nullptr }; #if PLATFORM(COCOA) // FIXME: Move these to GraphicsContextGLCocoa. GraphicsContextGLIOSurfaceSwapChain m_swapChain; // Backing store for the the buffer which is eventually used for display. // When preserveDrawingBuffer == false, this is the drawing buffer backing store. // When preserveDrawingBuffer == true, this is blitted to during display prepare. std::unique_ptr m_displayBufferBacking; void* m_displayBufferPbuffer { nullptr }; #endif }; } #endif