Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 Apple Inc. All rights reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * 1. Redistributions of source code must retain the above copyright |
| 8 | * notice, this list of conditions and the following disclaimer. |
| 9 | * 2. Redistributions in binary form must reproduce the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer in the |
| 11 | * documentation and/or other materials provided with the distribution. |
| 12 | * |
| 13 | * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| 14 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 15 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 16 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| 17 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 18 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 19 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 20 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 21 | * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
Ben Murdoch | 02772c6 | 2013-07-26 10:21:05 +0100 | [diff] [blame] | 23 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 24 | */ |
| 25 | |
| 26 | #ifndef WebGLRenderingContext_h |
| 27 | #define WebGLRenderingContext_h |
| 28 | |
| 29 | #include "core/dom/ActiveDOMObject.h" |
| 30 | #include "core/html/canvas/CanvasRenderingContext.h" |
| 31 | #include "core/html/canvas/WebGLGetInfo.h" |
Torne (Richard Coles) | e524955 | 2013-05-15 11:35:13 +0100 | [diff] [blame] | 32 | #include "core/page/Page.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 33 | #include "core/platform/Timer.h" |
| 34 | #include "core/platform/graphics/GraphicsContext3D.h" |
| 35 | #include "core/platform/graphics/ImageBuffer.h" |
| 36 | |
Ben Murdoch | 591b958 | 2013-07-10 11:41:44 +0100 | [diff] [blame] | 37 | #include "wtf/Float32Array.h" |
| 38 | #include "wtf/Int32Array.h" |
| 39 | #include "wtf/OwnArrayPtr.h" |
| 40 | #include "wtf/text/WTFString.h" |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 41 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 42 | namespace WebKit { class WebLayer; } |
| 43 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 44 | namespace WebCore { |
| 45 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 46 | class ANGLEInstancedArrays; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 47 | class DrawingBuffer; |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 48 | class EXTFragDepth; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 49 | class EXTTextureFilterAnisotropic; |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 50 | class ExceptionState; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 51 | class HTMLImageElement; |
| 52 | class HTMLVideoElement; |
| 53 | class ImageBuffer; |
| 54 | class ImageData; |
| 55 | class IntSize; |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 56 | class OESElementIndexUint; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 57 | class OESStandardDerivatives; |
| 58 | class OESTextureFloat; |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 59 | class OESTextureFloatLinear; |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 60 | class OESTextureHalfFloat; |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 61 | class OESTextureHalfFloatLinear; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 62 | class OESVertexArrayObject; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 63 | class WebGLActiveInfo; |
| 64 | class WebGLBuffer; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 65 | class WebGLCompressedTextureATC; |
| 66 | class WebGLCompressedTexturePVRTC; |
| 67 | class WebGLCompressedTextureS3TC; |
| 68 | class WebGLContextAttributes; |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 69 | class WebGLContextGroup; |
| 70 | class WebGLContextObject; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 71 | class WebGLDebugRendererInfo; |
| 72 | class WebGLDebugShaders; |
| 73 | class WebGLDepthTexture; |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 74 | class WebGLDrawBuffers; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 75 | class WebGLExtension; |
| 76 | class WebGLFramebuffer; |
| 77 | class WebGLLoseContext; |
| 78 | class WebGLObject; |
| 79 | class WebGLProgram; |
| 80 | class WebGLRenderbuffer; |
| 81 | class WebGLShader; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 82 | class WebGLShaderPrecisionFormat; |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 83 | class WebGLSharedObject; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 84 | class WebGLTexture; |
| 85 | class WebGLUniformLocation; |
| 86 | class WebGLVertexArrayObjectOES; |
| 87 | |
Torne (Richard Coles) | e524955 | 2013-05-15 11:35:13 +0100 | [diff] [blame] | 88 | class WebGLRenderingContext : public CanvasRenderingContext, public ActiveDOMObject, private Page::MultisamplingChangedObserver { |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 89 | public: |
| 90 | static PassOwnPtr<WebGLRenderingContext> create(HTMLCanvasElement*, WebGLContextAttributes*); |
| 91 | virtual ~WebGLRenderingContext(); |
| 92 | |
| 93 | virtual bool is3d() const { return true; } |
| 94 | virtual bool isAccelerated() const { return true; } |
| 95 | |
| 96 | int drawingBufferWidth() const; |
| 97 | int drawingBufferHeight() const; |
| 98 | |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 99 | void activeTexture(GC3Denum texture); |
| 100 | void attachShader(WebGLProgram*, WebGLShader*); |
| 101 | void bindAttribLocation(WebGLProgram*, GC3Duint index, const String& name); |
| 102 | void bindBuffer(GC3Denum target, WebGLBuffer*); |
| 103 | void bindFramebuffer(GC3Denum target, WebGLFramebuffer*); |
| 104 | void bindRenderbuffer(GC3Denum target, WebGLRenderbuffer*); |
| 105 | void bindTexture(GC3Denum target, WebGLTexture*); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 106 | void blendColor(GC3Dfloat red, GC3Dfloat green, GC3Dfloat blue, GC3Dfloat alpha); |
| 107 | void blendEquation(GC3Denum mode); |
| 108 | void blendEquationSeparate(GC3Denum modeRGB, GC3Denum modeAlpha); |
| 109 | void blendFunc(GC3Denum sfactor, GC3Denum dfactor); |
| 110 | void blendFuncSeparate(GC3Denum srcRGB, GC3Denum dstRGB, GC3Denum srcAlpha, GC3Denum dstAlpha); |
| 111 | |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 112 | void bufferData(GC3Denum target, long long size, GC3Denum usage); |
| 113 | void bufferData(GC3Denum target, ArrayBuffer* data, GC3Denum usage); |
| 114 | void bufferData(GC3Denum target, ArrayBufferView* data, GC3Denum usage); |
| 115 | void bufferSubData(GC3Denum target, long long offset, ArrayBuffer* data); |
| 116 | void bufferSubData(GC3Denum target, long long offset, ArrayBufferView* data); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 117 | |
| 118 | GC3Denum checkFramebufferStatus(GC3Denum target); |
| 119 | void clear(GC3Dbitfield mask); |
| 120 | void clearColor(GC3Dfloat red, GC3Dfloat green, GC3Dfloat blue, GC3Dfloat alpha); |
| 121 | void clearDepth(GC3Dfloat); |
| 122 | void clearStencil(GC3Dint); |
| 123 | void colorMask(GC3Dboolean red, GC3Dboolean green, GC3Dboolean blue, GC3Dboolean alpha); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 124 | void compileShader(WebGLShader*); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 125 | |
| 126 | void compressedTexImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, GC3Dsizei width, |
| 127 | GC3Dsizei height, GC3Dint border, ArrayBufferView* data); |
| 128 | void compressedTexSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, |
| 129 | GC3Dsizei width, GC3Dsizei height, GC3Denum format, ArrayBufferView* data); |
| 130 | |
| 131 | void copyTexImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, GC3Dint x, GC3Dint y, GC3Dsizei width, GC3Dsizei height, GC3Dint border); |
| 132 | void copyTexSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, GC3Dint x, GC3Dint y, GC3Dsizei width, GC3Dsizei height); |
| 133 | |
| 134 | PassRefPtr<WebGLBuffer> createBuffer(); |
| 135 | PassRefPtr<WebGLFramebuffer> createFramebuffer(); |
| 136 | PassRefPtr<WebGLProgram> createProgram(); |
| 137 | PassRefPtr<WebGLRenderbuffer> createRenderbuffer(); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 138 | PassRefPtr<WebGLShader> createShader(GC3Denum type); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 139 | PassRefPtr<WebGLTexture> createTexture(); |
| 140 | |
| 141 | void cullFace(GC3Denum mode); |
| 142 | |
| 143 | void deleteBuffer(WebGLBuffer*); |
| 144 | void deleteFramebuffer(WebGLFramebuffer*); |
| 145 | void deleteProgram(WebGLProgram*); |
| 146 | void deleteRenderbuffer(WebGLRenderbuffer*); |
| 147 | void deleteShader(WebGLShader*); |
| 148 | void deleteTexture(WebGLTexture*); |
| 149 | |
| 150 | void depthFunc(GC3Denum); |
| 151 | void depthMask(GC3Dboolean); |
| 152 | void depthRange(GC3Dfloat zNear, GC3Dfloat zFar); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 153 | void detachShader(WebGLProgram*, WebGLShader*); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 154 | void disable(GC3Denum cap); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 155 | void disableVertexAttribArray(GC3Duint index); |
| 156 | void drawArrays(GC3Denum mode, GC3Dint first, GC3Dsizei count); |
| 157 | void drawElements(GC3Denum mode, GC3Dsizei count, GC3Denum type, long long offset); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 158 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 159 | void drawArraysInstancedANGLE(GC3Denum mode, GC3Dint first, GC3Dsizei count, GC3Dsizei primcount); |
| 160 | void drawElementsInstancedANGLE(GC3Denum mode, GC3Dsizei count, GC3Denum type, GC3Dintptr offset, GC3Dsizei primcount); |
| 161 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 162 | void enable(GC3Denum cap); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 163 | void enableVertexAttribArray(GC3Duint index); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 164 | void finish(); |
| 165 | void flush(); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 166 | void framebufferRenderbuffer(GC3Denum target, GC3Denum attachment, GC3Denum renderbuffertarget, WebGLRenderbuffer*); |
| 167 | void framebufferTexture2D(GC3Denum target, GC3Denum attachment, GC3Denum textarget, WebGLTexture*, GC3Dint level); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 168 | void frontFace(GC3Denum mode); |
| 169 | void generateMipmap(GC3Denum target); |
| 170 | |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 171 | PassRefPtr<WebGLActiveInfo> getActiveAttrib(WebGLProgram*, GC3Duint index); |
| 172 | PassRefPtr<WebGLActiveInfo> getActiveUniform(WebGLProgram*, GC3Duint index); |
| 173 | bool getAttachedShaders(WebGLProgram*, Vector<RefPtr<WebGLShader> >&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 174 | GC3Dint getAttribLocation(WebGLProgram*, const String& name); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 175 | WebGLGetInfo getBufferParameter(GC3Denum target, GC3Denum pname); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 176 | PassRefPtr<WebGLContextAttributes> getContextAttributes(); |
| 177 | GC3Denum getError(); |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 178 | PassRefPtr<WebGLExtension> getExtension(const String& name); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 179 | WebGLGetInfo getFramebufferAttachmentParameter(GC3Denum target, GC3Denum attachment, GC3Denum pname); |
| 180 | WebGLGetInfo getParameter(GC3Denum pname); |
| 181 | WebGLGetInfo getProgramParameter(WebGLProgram*, GC3Denum pname); |
| 182 | String getProgramInfoLog(WebGLProgram*); |
| 183 | WebGLGetInfo getRenderbufferParameter(GC3Denum target, GC3Denum pname); |
| 184 | WebGLGetInfo getShaderParameter(WebGLShader*, GC3Denum pname); |
| 185 | String getShaderInfoLog(WebGLShader*); |
| 186 | PassRefPtr<WebGLShaderPrecisionFormat> getShaderPrecisionFormat(GC3Denum shaderType, GC3Denum precisionType); |
| 187 | String getShaderSource(WebGLShader*); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 188 | Vector<String> getSupportedExtensions(); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 189 | WebGLGetInfo getTexParameter(GC3Denum target, GC3Denum pname); |
| 190 | WebGLGetInfo getUniform(WebGLProgram*, const WebGLUniformLocation*); |
| 191 | PassRefPtr<WebGLUniformLocation> getUniformLocation(WebGLProgram*, const String&); |
| 192 | WebGLGetInfo getVertexAttrib(GC3Duint index, GC3Denum pname); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 193 | long long getVertexAttribOffset(GC3Duint index, GC3Denum pname); |
| 194 | |
| 195 | void hint(GC3Denum target, GC3Denum mode); |
| 196 | GC3Dboolean isBuffer(WebGLBuffer*); |
| 197 | bool isContextLost(); |
| 198 | GC3Dboolean isEnabled(GC3Denum cap); |
| 199 | GC3Dboolean isFramebuffer(WebGLFramebuffer*); |
| 200 | GC3Dboolean isProgram(WebGLProgram*); |
| 201 | GC3Dboolean isRenderbuffer(WebGLRenderbuffer*); |
| 202 | GC3Dboolean isShader(WebGLShader*); |
| 203 | GC3Dboolean isTexture(WebGLTexture*); |
| 204 | |
| 205 | void lineWidth(GC3Dfloat); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 206 | void linkProgram(WebGLProgram*); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 207 | void pixelStorei(GC3Denum pname, GC3Dint param); |
| 208 | void polygonOffset(GC3Dfloat factor, GC3Dfloat units); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 209 | void readPixels(GC3Dint x, GC3Dint y, GC3Dsizei width, GC3Dsizei height, GC3Denum format, GC3Denum type, ArrayBufferView* pixels); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 210 | void renderbufferStorage(GC3Denum target, GC3Denum internalformat, GC3Dsizei width, GC3Dsizei height); |
| 211 | void sampleCoverage(GC3Dfloat value, GC3Dboolean invert); |
| 212 | void scissor(GC3Dint x, GC3Dint y, GC3Dsizei width, GC3Dsizei height); |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 213 | void shaderSource(WebGLShader*, const String&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 214 | void stencilFunc(GC3Denum func, GC3Dint ref, GC3Duint mask); |
| 215 | void stencilFuncSeparate(GC3Denum face, GC3Denum func, GC3Dint ref, GC3Duint mask); |
| 216 | void stencilMask(GC3Duint); |
| 217 | void stencilMaskSeparate(GC3Denum face, GC3Duint mask); |
| 218 | void stencilOp(GC3Denum fail, GC3Denum zfail, GC3Denum zpass); |
| 219 | void stencilOpSeparate(GC3Denum face, GC3Denum fail, GC3Denum zfail, GC3Denum zpass); |
| 220 | |
| 221 | void texImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 222 | GC3Dsizei width, GC3Dsizei height, GC3Dint border, |
| 223 | GC3Denum format, GC3Denum type, ArrayBufferView*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 224 | void texImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 225 | GC3Denum format, GC3Denum type, ImageData*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 226 | void texImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 227 | GC3Denum format, GC3Denum type, HTMLImageElement*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 228 | void texImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 229 | GC3Denum format, GC3Denum type, HTMLCanvasElement*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 230 | void texImage2D(GC3Denum target, GC3Dint level, GC3Denum internalformat, |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 231 | GC3Denum format, GC3Denum type, HTMLVideoElement*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 232 | |
| 233 | void texParameterf(GC3Denum target, GC3Denum pname, GC3Dfloat param); |
| 234 | void texParameteri(GC3Denum target, GC3Denum pname, GC3Dint param); |
| 235 | |
| 236 | void texSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 237 | GC3Dsizei width, GC3Dsizei height, |
| 238 | GC3Denum format, GC3Denum type, ArrayBufferView*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 239 | void texSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 240 | GC3Denum format, GC3Denum type, ImageData*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 241 | void texSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 242 | GC3Denum format, GC3Denum type, HTMLImageElement*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 243 | void texSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 244 | GC3Denum format, GC3Denum type, HTMLCanvasElement*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 245 | void texSubImage2D(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 246 | GC3Denum format, GC3Denum type, HTMLVideoElement*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 247 | |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 248 | void uniform1f(const WebGLUniformLocation*, GC3Dfloat x); |
| 249 | void uniform1fv(const WebGLUniformLocation*, Float32Array* v); |
| 250 | void uniform1fv(const WebGLUniformLocation*, GC3Dfloat* v, GC3Dsizei); |
| 251 | void uniform1i(const WebGLUniformLocation*, GC3Dint x); |
| 252 | void uniform1iv(const WebGLUniformLocation*, Int32Array* v); |
| 253 | void uniform1iv(const WebGLUniformLocation*, GC3Dint* v, GC3Dsizei); |
| 254 | void uniform2f(const WebGLUniformLocation*, GC3Dfloat x, GC3Dfloat y); |
| 255 | void uniform2fv(const WebGLUniformLocation*, Float32Array* v); |
| 256 | void uniform2fv(const WebGLUniformLocation*, GC3Dfloat* v, GC3Dsizei); |
| 257 | void uniform2i(const WebGLUniformLocation*, GC3Dint x, GC3Dint y); |
| 258 | void uniform2iv(const WebGLUniformLocation*, Int32Array* v); |
| 259 | void uniform2iv(const WebGLUniformLocation*, GC3Dint* v, GC3Dsizei); |
| 260 | void uniform3f(const WebGLUniformLocation*, GC3Dfloat x, GC3Dfloat y, GC3Dfloat z); |
| 261 | void uniform3fv(const WebGLUniformLocation*, Float32Array* v); |
| 262 | void uniform3fv(const WebGLUniformLocation*, GC3Dfloat* v, GC3Dsizei); |
| 263 | void uniform3i(const WebGLUniformLocation*, GC3Dint x, GC3Dint y, GC3Dint z); |
| 264 | void uniform3iv(const WebGLUniformLocation*, Int32Array* v); |
| 265 | void uniform3iv(const WebGLUniformLocation*, GC3Dint* v, GC3Dsizei); |
| 266 | void uniform4f(const WebGLUniformLocation*, GC3Dfloat x, GC3Dfloat y, GC3Dfloat z, GC3Dfloat w); |
| 267 | void uniform4fv(const WebGLUniformLocation*, Float32Array* v); |
| 268 | void uniform4fv(const WebGLUniformLocation*, GC3Dfloat* v, GC3Dsizei); |
| 269 | void uniform4i(const WebGLUniformLocation*, GC3Dint x, GC3Dint y, GC3Dint z, GC3Dint w); |
| 270 | void uniform4iv(const WebGLUniformLocation*, Int32Array* v); |
| 271 | void uniform4iv(const WebGLUniformLocation*, GC3Dint* v, GC3Dsizei); |
| 272 | void uniformMatrix2fv(const WebGLUniformLocation*, GC3Dboolean transpose, Float32Array* value); |
| 273 | void uniformMatrix2fv(const WebGLUniformLocation*, GC3Dboolean transpose, GC3Dfloat* value, GC3Dsizei); |
| 274 | void uniformMatrix3fv(const WebGLUniformLocation*, GC3Dboolean transpose, Float32Array* value); |
| 275 | void uniformMatrix3fv(const WebGLUniformLocation*, GC3Dboolean transpose, GC3Dfloat* value, GC3Dsizei); |
| 276 | void uniformMatrix4fv(const WebGLUniformLocation*, GC3Dboolean transpose, Float32Array* value); |
| 277 | void uniformMatrix4fv(const WebGLUniformLocation*, GC3Dboolean transpose, GC3Dfloat* value, GC3Dsizei); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 278 | |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 279 | void useProgram(WebGLProgram*); |
| 280 | void validateProgram(WebGLProgram*); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 281 | |
| 282 | void vertexAttrib1f(GC3Duint index, GC3Dfloat x); |
| 283 | void vertexAttrib1fv(GC3Duint index, Float32Array* values); |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 284 | void vertexAttrib1fv(GC3Duint index, GC3Dfloat* values, GC3Dsizei); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 285 | void vertexAttrib2f(GC3Duint index, GC3Dfloat x, GC3Dfloat y); |
| 286 | void vertexAttrib2fv(GC3Duint index, Float32Array* values); |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 287 | void vertexAttrib2fv(GC3Duint index, GC3Dfloat* values, GC3Dsizei); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 288 | void vertexAttrib3f(GC3Duint index, GC3Dfloat x, GC3Dfloat y, GC3Dfloat z); |
| 289 | void vertexAttrib3fv(GC3Duint index, Float32Array* values); |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 290 | void vertexAttrib3fv(GC3Duint index, GC3Dfloat* values, GC3Dsizei); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 291 | void vertexAttrib4f(GC3Duint index, GC3Dfloat x, GC3Dfloat y, GC3Dfloat z, GC3Dfloat w); |
| 292 | void vertexAttrib4fv(GC3Duint index, Float32Array* values); |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 293 | void vertexAttrib4fv(GC3Duint index, GC3Dfloat* values, GC3Dsizei); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 294 | void vertexAttribPointer(GC3Duint index, GC3Dint size, GC3Denum type, GC3Dboolean normalized, |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 295 | GC3Dsizei stride, long long offset); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 296 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 297 | void vertexAttribDivisorANGLE(GC3Duint index, GC3Duint divisor); |
| 298 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 299 | void viewport(GC3Dint x, GC3Dint y, GC3Dsizei width, GC3Dsizei height); |
| 300 | |
| 301 | // WEBKIT_lose_context support |
| 302 | enum LostContextMode { |
| 303 | // Lost context occurred at the graphics system level. |
| 304 | RealLostContext, |
| 305 | |
| 306 | // Lost context provoked by WEBKIT_lose_context. |
Torne (Richard Coles) | e524955 | 2013-05-15 11:35:13 +0100 | [diff] [blame] | 307 | SyntheticLostContext, |
| 308 | |
| 309 | // A synthetic lost context that should attempt to recover automatically |
| 310 | AutoRecoverSyntheticLostContext |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 311 | }; |
| 312 | void forceLostContext(LostContextMode); |
| 313 | void forceRestoreContext(); |
| 314 | void loseContextImpl(LostContextMode); |
| 315 | |
| 316 | GraphicsContext3D* graphicsContext3D() const { return m_context.get(); } |
| 317 | WebGLContextGroup* contextGroup() const { return m_contextGroup.get(); } |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 318 | virtual WebKit::WebLayer* platformLayer() const; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 319 | |
| 320 | void reshape(int width, int height); |
| 321 | |
| 322 | void markLayerComposited(); |
| 323 | virtual void paintRenderingResultsToCanvas(); |
| 324 | virtual PassRefPtr<ImageData> paintRenderingResultsToImageData(); |
| 325 | |
| 326 | void removeSharedObject(WebGLSharedObject*); |
| 327 | void removeContextObject(WebGLContextObject*); |
Ben Murdoch | 02772c6 | 2013-07-26 10:21:05 +0100 | [diff] [blame] | 328 | |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame^] | 329 | unsigned maxVertexAttribs() const { return m_maxVertexAttribs; } |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 330 | |
| 331 | // ActiveDOMObject notifications |
| 332 | virtual bool hasPendingActivity() const; |
| 333 | virtual void stop(); |
| 334 | |
| 335 | private: |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 336 | friend class WebGLDrawBuffers; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 337 | friend class WebGLFramebuffer; |
| 338 | friend class WebGLObject; |
| 339 | friend class OESVertexArrayObject; |
| 340 | friend class WebGLDebugShaders; |
| 341 | friend class WebGLCompressedTextureATC; |
| 342 | friend class WebGLCompressedTexturePVRTC; |
| 343 | friend class WebGLCompressedTextureS3TC; |
| 344 | friend class WebGLRenderingContextErrorMessageCallback; |
| 345 | friend class WebGLVertexArrayObjectOES; |
| 346 | |
Torne (Richard Coles) | e524955 | 2013-05-15 11:35:13 +0100 | [diff] [blame] | 347 | WebGLRenderingContext(HTMLCanvasElement*, PassRefPtr<GraphicsContext3D>, GraphicsContext3D::Attributes, GraphicsContext3D::Attributes); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 348 | void initializeNewContext(); |
| 349 | void setupFlags(); |
| 350 | |
| 351 | void addSharedObject(WebGLSharedObject*); |
| 352 | void addContextObject(WebGLContextObject*); |
| 353 | void detachAndRemoveAllObjects(); |
| 354 | |
| 355 | void destroyGraphicsContext3D(); |
| 356 | void markContextChanged(); |
| 357 | |
| 358 | // Query if the GL implementation is NPOT strict. |
| 359 | bool isGLES2NPOTStrict() { return m_isGLES2NPOTStrict; } |
| 360 | // Query if depth_stencil buffer is supported. |
| 361 | bool isDepthStencilSupported() { return m_isDepthStencilSupported; } |
| 362 | |
| 363 | // Helper to return the size in bytes of OpenGL data types |
| 364 | // like GL_FLOAT, GL_INT, etc. |
| 365 | unsigned int sizeInBytes(GC3Denum type); |
| 366 | |
| 367 | // Check if each enabled vertex attribute is bound to a buffer. |
| 368 | bool validateRenderingState(); |
| 369 | |
| 370 | bool validateWebGLObject(const char*, WebGLObject*); |
| 371 | |
| 372 | // Adds a compressed texture format. |
| 373 | void addCompressedTextureFormat(GC3Denum); |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 374 | void removeAllCompressedTextureFormats(); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 375 | |
Ben Murdoch | 1fad5ca | 2013-08-07 11:05:11 +0100 | [diff] [blame] | 376 | PassRefPtr<Image> videoFrameToImage(HTMLVideoElement*, BackingStoreCopy); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 377 | |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 378 | WebGLRenderbuffer* ensureEmulatedStencilBuffer(GC3Denum target, WebGLRenderbuffer*); |
| 379 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 380 | RefPtr<GraphicsContext3D> m_context; |
| 381 | RefPtr<WebGLContextGroup> m_contextGroup; |
| 382 | |
| 383 | // Structure for rendering to a DrawingBuffer, instead of directly |
| 384 | // to the back-buffer of m_context. |
| 385 | RefPtr<DrawingBuffer> m_drawingBuffer; |
| 386 | |
| 387 | // Dispatches a context lost event once it is determined that one is needed. |
| 388 | // This is used both for synthetic and real context losses. For real ones, it's |
| 389 | // likely that there's no JavaScript on the stack, but that might be dependent |
| 390 | // on how exactly the platform discovers that the context was lost. For better |
| 391 | // portability we always defer the dispatch of the event. |
| 392 | Timer<WebGLRenderingContext> m_dispatchContextLostEventTimer; |
| 393 | bool m_restoreAllowed; |
| 394 | Timer<WebGLRenderingContext> m_restoreTimer; |
| 395 | |
| 396 | bool m_needsUpdate; |
| 397 | bool m_markedCanvasDirty; |
| 398 | HashSet<WebGLContextObject*> m_contextObjects; |
| 399 | |
| 400 | // List of bound VBO's. Used to maintain info about sizes for ARRAY_BUFFER and stored values for ELEMENT_ARRAY_BUFFER |
| 401 | RefPtr<WebGLBuffer> m_boundArrayBuffer; |
Ben Murdoch | 02772c6 | 2013-07-26 10:21:05 +0100 | [diff] [blame] | 402 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 403 | RefPtr<WebGLVertexArrayObjectOES> m_defaultVertexArrayObject; |
| 404 | RefPtr<WebGLVertexArrayObjectOES> m_boundVertexArrayObject; |
| 405 | void setBoundVertexArrayObject(PassRefPtr<WebGLVertexArrayObjectOES> arrayObject) |
| 406 | { |
| 407 | if (arrayObject) |
| 408 | m_boundVertexArrayObject = arrayObject; |
| 409 | else |
| 410 | m_boundVertexArrayObject = m_defaultVertexArrayObject; |
| 411 | } |
Ben Murdoch | 02772c6 | 2013-07-26 10:21:05 +0100 | [diff] [blame] | 412 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 413 | class VertexAttribValue { |
| 414 | public: |
| 415 | VertexAttribValue() |
| 416 | { |
| 417 | initValue(); |
| 418 | } |
Ben Murdoch | 02772c6 | 2013-07-26 10:21:05 +0100 | [diff] [blame] | 419 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 420 | void initValue() |
| 421 | { |
| 422 | value[0] = 0.0f; |
| 423 | value[1] = 0.0f; |
| 424 | value[2] = 0.0f; |
| 425 | value[3] = 1.0f; |
| 426 | } |
Ben Murdoch | 02772c6 | 2013-07-26 10:21:05 +0100 | [diff] [blame] | 427 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 428 | GC3Dfloat value[4]; |
| 429 | }; |
| 430 | Vector<VertexAttribValue> m_vertexAttribValue; |
| 431 | unsigned m_maxVertexAttribs; |
| 432 | RefPtr<WebGLBuffer> m_vertexAttrib0Buffer; |
| 433 | long m_vertexAttrib0BufferSize; |
| 434 | GC3Dfloat m_vertexAttrib0BufferValue[4]; |
| 435 | bool m_forceAttrib0BufferRefill; |
| 436 | bool m_vertexAttrib0UsedBefore; |
| 437 | |
| 438 | RefPtr<WebGLProgram> m_currentProgram; |
| 439 | RefPtr<WebGLFramebuffer> m_framebufferBinding; |
| 440 | RefPtr<WebGLRenderbuffer> m_renderbufferBinding; |
| 441 | class TextureUnitState { |
| 442 | public: |
| 443 | RefPtr<WebGLTexture> m_texture2DBinding; |
| 444 | RefPtr<WebGLTexture> m_textureCubeMapBinding; |
| 445 | }; |
| 446 | Vector<TextureUnitState> m_textureUnits; |
| 447 | unsigned long m_activeTextureUnit; |
| 448 | |
| 449 | RefPtr<WebGLTexture> m_blackTexture2D; |
| 450 | RefPtr<WebGLTexture> m_blackTextureCubeMap; |
| 451 | |
| 452 | Vector<GC3Denum> m_compressedTextureFormats; |
| 453 | |
| 454 | // Fixed-size cache of reusable image buffers for video texImage2D calls. |
| 455 | class LRUImageBufferCache { |
| 456 | public: |
| 457 | LRUImageBufferCache(int capacity); |
| 458 | // The pointer returned is owned by the image buffer map. |
| 459 | ImageBuffer* imageBuffer(const IntSize& size); |
| 460 | private: |
| 461 | void bubbleToFront(int idx); |
| 462 | OwnArrayPtr<OwnPtr<ImageBuffer> > m_buffers; |
| 463 | int m_capacity; |
| 464 | }; |
| 465 | LRUImageBufferCache m_videoCache; |
| 466 | |
| 467 | GC3Dint m_maxTextureSize; |
| 468 | GC3Dint m_maxCubeMapTextureSize; |
| 469 | GC3Dint m_maxRenderbufferSize; |
| 470 | GC3Dint m_maxViewportDims[2]; |
| 471 | GC3Dint m_maxTextureLevel; |
| 472 | GC3Dint m_maxCubeMapTextureLevel; |
| 473 | |
| 474 | GC3Dint m_maxDrawBuffers; |
| 475 | GC3Dint m_maxColorAttachments; |
| 476 | GC3Denum m_backDrawBuffer; |
| 477 | bool m_drawBuffersWebGLRequirementsChecked; |
| 478 | bool m_drawBuffersSupported; |
| 479 | |
| 480 | GC3Dint m_packAlignment; |
| 481 | GC3Dint m_unpackAlignment; |
| 482 | bool m_unpackFlipY; |
| 483 | bool m_unpackPremultiplyAlpha; |
| 484 | GC3Denum m_unpackColorspaceConversion; |
| 485 | bool m_contextLost; |
| 486 | LostContextMode m_contextLostMode; |
| 487 | GraphicsContext3D::Attributes m_attributes; |
Torne (Richard Coles) | e524955 | 2013-05-15 11:35:13 +0100 | [diff] [blame] | 488 | GraphicsContext3D::Attributes m_requestedAttributes; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 489 | |
| 490 | bool m_layerCleared; |
| 491 | GC3Dfloat m_clearColor[4]; |
| 492 | bool m_scissorEnabled; |
| 493 | GC3Dfloat m_clearDepth; |
| 494 | GC3Dint m_clearStencil; |
| 495 | GC3Dboolean m_colorMask[4]; |
| 496 | GC3Dboolean m_depthMask; |
| 497 | |
| 498 | bool m_stencilEnabled; |
| 499 | GC3Duint m_stencilMask, m_stencilMaskBack; |
| 500 | GC3Dint m_stencilFuncRef, m_stencilFuncRefBack; // Note that these are the user specified values, not the internal clamped value. |
| 501 | GC3Duint m_stencilFuncMask, m_stencilFuncMaskBack; |
| 502 | |
| 503 | bool m_isGLES2NPOTStrict; |
| 504 | bool m_isDepthStencilSupported; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 505 | |
| 506 | bool m_synthesizedErrorsToConsole; |
| 507 | int m_numGLErrorsToConsoleAllowed; |
| 508 | |
Torne (Richard Coles) | e1f1df5 | 2013-08-23 16:39:30 +0100 | [diff] [blame] | 509 | bool m_multisamplingAllowed; |
| 510 | bool m_multisamplingObserverRegistered; |
| 511 | |
| 512 | GC3Duint m_onePlusMaxEnabledAttribIndex; |
| 513 | unsigned long m_onePlusMaxNonDefaultTextureUnit; |
| 514 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 515 | // Enabled extension objects. |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 516 | RefPtr<ANGLEInstancedArrays> m_angleInstancedArrays; |
| 517 | RefPtr<EXTFragDepth> m_extFragDepth; |
| 518 | RefPtr<EXTTextureFilterAnisotropic> m_extTextureFilterAnisotropic; |
| 519 | RefPtr<OESTextureFloat> m_oesTextureFloat; |
| 520 | RefPtr<OESTextureFloatLinear> m_oesTextureFloatLinear; |
| 521 | RefPtr<OESTextureHalfFloat> m_oesTextureHalfFloat; |
| 522 | RefPtr<OESTextureHalfFloatLinear> m_oesTextureHalfFloatLinear; |
| 523 | RefPtr<OESStandardDerivatives> m_oesStandardDerivatives; |
| 524 | RefPtr<OESVertexArrayObject> m_oesVertexArrayObject; |
| 525 | RefPtr<OESElementIndexUint> m_oesElementIndexUint; |
| 526 | RefPtr<WebGLLoseContext> m_webglLoseContext; |
| 527 | RefPtr<WebGLDebugRendererInfo> m_webglDebugRendererInfo; |
| 528 | RefPtr<WebGLDebugShaders> m_webglDebugShaders; |
| 529 | RefPtr<WebGLDrawBuffers> m_webglDrawBuffers; |
| 530 | RefPtr<WebGLCompressedTextureATC> m_webglCompressedTextureATC; |
| 531 | RefPtr<WebGLCompressedTexturePVRTC> m_webglCompressedTexturePVRTC; |
| 532 | RefPtr<WebGLCompressedTextureS3TC> m_webglCompressedTextureS3TC; |
| 533 | RefPtr<WebGLDepthTexture> m_webglDepthTexture; |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 534 | |
Torne (Richard Coles) | e1f1df5 | 2013-08-23 16:39:30 +0100 | [diff] [blame] | 535 | enum ExtensionFlags { |
| 536 | ApprovedExtension = 0x00, |
| 537 | DraftExtension = 0x01, |
| 538 | PrivilegedExtension = 0x02, |
| 539 | PrefixedExtension = 0x04, |
| 540 | }; |
| 541 | |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 542 | class ExtensionTracker { |
| 543 | public: |
Torne (Richard Coles) | e1f1df5 | 2013-08-23 16:39:30 +0100 | [diff] [blame] | 544 | ExtensionTracker(ExtensionFlags flags, const char** prefixes) |
| 545 | : m_privileged(flags & PrivilegedExtension) |
| 546 | , m_draft(flags & DraftExtension) |
| 547 | , m_prefixed(flags & PrefixedExtension) |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 548 | , m_prefixes(prefixes) |
| 549 | { |
| 550 | } |
| 551 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 552 | virtual ~ExtensionTracker() |
| 553 | { |
| 554 | } |
| 555 | |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame^] | 556 | bool prefixed() const |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 557 | { |
| 558 | return m_prefixed; |
| 559 | } |
| 560 | |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame^] | 561 | bool privileged() const |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 562 | { |
| 563 | return m_privileged; |
| 564 | } |
| 565 | |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame^] | 566 | bool draft() const |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 567 | { |
| 568 | return m_draft; |
| 569 | } |
| 570 | |
| 571 | bool matchesNameWithPrefixes(const String&) const; |
| 572 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 573 | virtual PassRefPtr<WebGLExtension> getExtension(WebGLRenderingContext*) const = 0; |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 574 | virtual bool supported(WebGLRenderingContext*) const = 0; |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame^] | 575 | virtual const char* extensionName() const = 0; |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 576 | virtual void loseExtension() = 0; |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 577 | |
| 578 | private: |
| 579 | bool m_privileged; |
| 580 | bool m_draft; |
| 581 | bool m_prefixed; |
| 582 | const char** m_prefixes; |
| 583 | }; |
| 584 | |
| 585 | template <typename T> |
| 586 | class TypedExtensionTracker : public ExtensionTracker { |
| 587 | public: |
Torne (Richard Coles) | e1f1df5 | 2013-08-23 16:39:30 +0100 | [diff] [blame] | 588 | TypedExtensionTracker(RefPtr<T>& extensionField, ExtensionFlags flags, const char** prefixes) |
| 589 | : ExtensionTracker(flags, prefixes) |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 590 | , m_extensionField(extensionField) |
| 591 | { |
| 592 | } |
| 593 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 594 | ~TypedExtensionTracker() |
| 595 | { |
| 596 | if (m_extensionField) { |
| 597 | m_extensionField->lose(true); |
| 598 | m_extensionField = 0; |
| 599 | } |
| 600 | } |
| 601 | |
| 602 | virtual PassRefPtr<WebGLExtension> getExtension(WebGLRenderingContext* context) const |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 603 | { |
| 604 | if (!m_extensionField) |
| 605 | m_extensionField = T::create(context); |
| 606 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 607 | return m_extensionField; |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 608 | } |
| 609 | |
| 610 | virtual bool supported(WebGLRenderingContext* context) const |
| 611 | { |
| 612 | return T::supported(context); |
| 613 | } |
| 614 | |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame^] | 615 | virtual const char* extensionName() const |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 616 | { |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame^] | 617 | return T::extensionName(); |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 618 | } |
| 619 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 620 | virtual void loseExtension() |
| 621 | { |
| 622 | if (m_extensionField) { |
| 623 | m_extensionField->lose(false); |
| 624 | if (m_extensionField->isLost()) |
| 625 | m_extensionField = 0; |
| 626 | } |
| 627 | } |
| 628 | |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 629 | private: |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 630 | RefPtr<T>& m_extensionField; |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 631 | }; |
| 632 | |
| 633 | Vector<ExtensionTracker*> m_extensions; |
| 634 | |
| 635 | template <typename T> |
Torne (Richard Coles) | e1f1df5 | 2013-08-23 16:39:30 +0100 | [diff] [blame] | 636 | void registerExtension(RefPtr<T>& extensionPtr, ExtensionFlags flags = ApprovedExtension, const char** prefixes = 0) |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 637 | { |
Torne (Richard Coles) | e1f1df5 | 2013-08-23 16:39:30 +0100 | [diff] [blame] | 638 | m_extensions.append(new TypedExtensionTracker<T>(extensionPtr, flags, prefixes)); |
Torne (Richard Coles) | 5267f70 | 2013-06-11 10:57:24 +0100 | [diff] [blame] | 639 | } |
| 640 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 641 | // Errors raised by synthesizeGLError() while the context is lost. |
| 642 | Vector<GC3Denum> lost_context_errors_; |
| 643 | |
| 644 | // Helpers for getParameter and others |
| 645 | WebGLGetInfo getBooleanParameter(GC3Denum); |
| 646 | WebGLGetInfo getBooleanArrayParameter(GC3Denum); |
| 647 | WebGLGetInfo getFloatParameter(GC3Denum); |
| 648 | WebGLGetInfo getIntParameter(GC3Denum); |
| 649 | WebGLGetInfo getUnsignedIntParameter(GC3Denum); |
| 650 | WebGLGetInfo getWebGLFloatArrayParameter(GC3Denum); |
| 651 | WebGLGetInfo getWebGLIntArrayParameter(GC3Denum); |
| 652 | |
| 653 | // Clear the backbuffer if it was composited since the last operation. |
| 654 | // clearMask is set to the bitfield of any clear that would happen anyway at this time |
| 655 | // and the function returns true if that clear is now unnecessary. |
| 656 | bool clearIfComposited(GC3Dbitfield clearMask = 0); |
| 657 | |
| 658 | // Helper to restore state that clearing the framebuffer may destroy. |
| 659 | void restoreStateAfterClear(); |
| 660 | |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 661 | void texImage2DBase(GC3Denum target, GC3Dint level, GC3Denum internalformat, GC3Dsizei width, GC3Dsizei height, GC3Dint border, GC3Denum format, GC3Denum type, const void* pixels, ExceptionState&); |
| 662 | void texImage2DImpl(GC3Denum target, GC3Dint level, GC3Denum internalformat, GC3Denum format, GC3Denum type, Image*, GraphicsContext3D::ImageHtmlDomSource, bool flipY, bool premultiplyAlpha, ExceptionState&); |
| 663 | void texSubImage2DBase(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, GC3Dsizei width, GC3Dsizei height, GC3Denum format, GC3Denum type, const void* pixels, ExceptionState&); |
| 664 | void texSubImage2DImpl(GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, GC3Denum format, GC3Denum type, Image*, GraphicsContext3D::ImageHtmlDomSource, bool flipY, bool premultiplyAlpha, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 665 | |
Torne (Richard Coles) | 93ac45c | 2013-05-29 14:40:20 +0100 | [diff] [blame] | 666 | void handleTextureCompleteness(const char*, bool); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 667 | void createFallbackBlackTextures1x1(); |
| 668 | |
| 669 | // Helper function for copyTex{Sub}Image, check whether the internalformat |
| 670 | // and the color buffer format of the current bound framebuffer combination |
| 671 | // is valid. |
| 672 | bool isTexInternalFormatColorBufferCombinationValid(GC3Denum texInternalFormat, |
| 673 | GC3Denum colorBufferFormat); |
| 674 | |
| 675 | // Helper function to get the bound framebuffer's color buffer format. |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame^] | 676 | GC3Denum boundFramebufferColorFormat(); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 677 | |
| 678 | // Helper function to get the bound framebuffer's width. |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame^] | 679 | int boundFramebufferWidth(); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 680 | |
| 681 | // Helper function to get the bound framebuffer's height. |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame^] | 682 | int boundFramebufferHeight(); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 683 | |
| 684 | // Helper function to verify limits on the length of uniform and attribute locations. |
| 685 | bool validateLocationLength(const char* functionName, const String&); |
| 686 | |
| 687 | // Helper function to check if size is non-negative. |
| 688 | // Generate GL error and return false for negative inputs; otherwise, return true. |
| 689 | bool validateSize(const char* functionName, GC3Dint x, GC3Dint y); |
| 690 | |
| 691 | // Helper function to check if all characters in the string belong to the |
| 692 | // ASCII subset as defined in GLSL ES 1.0 spec section 3.1. |
| 693 | bool validateString(const char* functionName, const String&); |
| 694 | |
| 695 | // Helper function to check target and texture bound to the target. |
| 696 | // Generate GL errors and return 0 if target is invalid or texture bound is |
| 697 | // null. Otherwise, return the texture bound to the target. |
| 698 | WebGLTexture* validateTextureBinding(const char* functionName, GC3Denum target, bool useSixEnumsForCubeMap); |
| 699 | |
| 700 | // Helper function to check input format/type for functions {copy}Tex{Sub}Image. |
| 701 | // Generates GL error and returns false if parameters are invalid. |
| 702 | bool validateTexFuncFormatAndType(const char* functionName, GC3Denum format, GC3Denum type, GC3Dint level); |
| 703 | |
| 704 | // Helper function to check input level for functions {copy}Tex{Sub}Image. |
| 705 | // Generates GL error and returns false if level is invalid. |
| 706 | bool validateTexFuncLevel(const char* functionName, GC3Denum target, GC3Dint level); |
| 707 | |
| 708 | enum TexFuncValidationFunctionType { |
| 709 | NotTexSubImage2D, |
| 710 | TexSubImage2D, |
| 711 | }; |
| 712 | |
| 713 | enum TexFuncValidationSourceType { |
| 714 | SourceArrayBufferView, |
| 715 | SourceImageData, |
| 716 | SourceHTMLImageElement, |
| 717 | SourceHTMLCanvasElement, |
| 718 | SourceHTMLVideoElement, |
| 719 | }; |
| 720 | |
| 721 | // Helper function for tex{Sub}Image2D to check if the input format/type/level/target/width/height/border/xoffset/yoffset are valid. |
| 722 | // Otherwise, it would return quickly without doing other work. |
| 723 | bool validateTexFunc(const char* functionName, TexFuncValidationFunctionType, TexFuncValidationSourceType, GC3Denum target, GC3Dint level, GC3Denum internalformat, GC3Dsizei width, |
| 724 | GC3Dsizei height, GC3Dint border, GC3Denum format, GC3Denum type, GC3Dint xoffset, GC3Dint yoffset); |
| 725 | |
Torne (Richard Coles) | e1f1df5 | 2013-08-23 16:39:30 +0100 | [diff] [blame] | 726 | // Helper function to check input width and height for functions {copy, compressed}Tex{Sub}Image. |
| 727 | // Generates GL error and returns false if width or height is invalid. |
| 728 | bool validateTexFuncDimensions(const char* functionName, TexFuncValidationFunctionType, |
| 729 | GC3Denum target, GC3Dint level, GC3Dsizei width, GC3Dsizei height); |
| 730 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 731 | // Helper function to check input parameters for functions {copy}Tex{Sub}Image. |
| 732 | // Generates GL error and returns false if parameters are invalid. |
| 733 | bool validateTexFuncParameters(const char* functionName, |
| 734 | TexFuncValidationFunctionType, |
| 735 | GC3Denum target, GC3Dint level, |
| 736 | GC3Denum internalformat, |
| 737 | GC3Dsizei width, GC3Dsizei height, GC3Dint border, |
| 738 | GC3Denum format, GC3Denum type); |
| 739 | |
| 740 | enum NullDisposition { |
| 741 | NullAllowed, |
| 742 | NullNotAllowed |
| 743 | }; |
| 744 | |
| 745 | // Helper function to validate that the given ArrayBufferView |
| 746 | // is of the correct type and contains enough data for the texImage call. |
| 747 | // Generates GL error and returns false if parameters are invalid. |
| 748 | bool validateTexFuncData(const char* functionName, GC3Dint level, |
| 749 | GC3Dsizei width, GC3Dsizei height, |
| 750 | GC3Denum format, GC3Denum type, |
| 751 | ArrayBufferView* pixels, |
| 752 | NullDisposition); |
| 753 | |
| 754 | // Helper function to validate a given texture format is settable as in |
| 755 | // you can supply data to texImage2D, or call texImage2D, copyTexImage2D and |
| 756 | // copyTexSubImage2D. |
| 757 | // Generates GL error and returns false if the format is not settable. |
| 758 | bool validateSettableTexFormat(const char* functionName, GC3Denum format); |
| 759 | |
| 760 | // Helper function to validate compressed texture data is correct size |
| 761 | // for the given format and dimensions. |
| 762 | bool validateCompressedTexFuncData(const char* functionName, |
| 763 | GC3Dsizei width, GC3Dsizei height, |
| 764 | GC3Denum format, ArrayBufferView* pixels); |
| 765 | |
| 766 | // Helper function for validating compressed texture formats. |
| 767 | bool validateCompressedTexFormat(GC3Denum format); |
| 768 | |
| 769 | // Helper function to validate compressed texture dimensions are valid for |
| 770 | // the given format. |
Torne (Richard Coles) | e1f1df5 | 2013-08-23 16:39:30 +0100 | [diff] [blame] | 771 | bool validateCompressedTexDimensions(const char* functionName, TexFuncValidationFunctionType, GC3Denum target, GC3Dint level, GC3Dsizei width, GC3Dsizei height, GC3Denum format); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 772 | |
| 773 | // Helper function to validate compressed texture dimensions are valid for |
| 774 | // the given format. |
| 775 | bool validateCompressedTexSubDimensions(const char* functionName, GC3Denum target, GC3Dint level, GC3Dint xoffset, GC3Dint yoffset, |
| 776 | GC3Dsizei width, GC3Dsizei height, GC3Denum format, WebGLTexture*); |
| 777 | |
| 778 | // Helper function to validate mode for draw{Arrays/Elements}. |
| 779 | bool validateDrawMode(const char* functionName, GC3Denum); |
| 780 | |
| 781 | // Helper function to validate if front/back stencilMask and stencilFunc settings are the same. |
| 782 | bool validateStencilSettings(const char* functionName); |
| 783 | |
Torne (Richard Coles) | f5e4ad5 | 2013-08-05 13:57:57 +0100 | [diff] [blame] | 784 | // Helper function to validate stencil or depth func. |
| 785 | bool validateStencilOrDepthFunc(const char* functionName, GC3Denum); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 786 | |
| 787 | // Helper function for texParameterf and texParameteri. |
| 788 | void texParameter(GC3Denum target, GC3Denum pname, GC3Dfloat parami, GC3Dint paramf, bool isFloat); |
| 789 | |
| 790 | // Helper function to print GL errors to console. |
| 791 | void printGLErrorToConsole(const String&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 792 | |
| 793 | // Helper function to print warnings to console. Currently |
| 794 | // used only to warn about use of obsolete functions. |
| 795 | void printWarningToConsole(const String&); |
| 796 | |
| 797 | // Helper function to validate input parameters for framebuffer functions. |
| 798 | // Generate GL error if parameters are illegal. |
| 799 | bool validateFramebufferFuncParameters(const char* functionName, GC3Denum target, GC3Denum attachment); |
| 800 | |
| 801 | // Helper function to validate blend equation mode. |
| 802 | bool validateBlendEquation(const char* functionName, GC3Denum); |
| 803 | |
| 804 | // Helper function to validate blend func factors. |
| 805 | bool validateBlendFuncFactors(const char* functionName, GC3Denum src, GC3Denum dst); |
| 806 | |
| 807 | // Helper function to validate a GL capability. |
| 808 | bool validateCapability(const char* functionName, GC3Denum); |
| 809 | |
| 810 | // Helper function to validate input parameters for uniform functions. |
| 811 | bool validateUniformParameters(const char* functionName, const WebGLUniformLocation*, Float32Array*, GC3Dsizei mod); |
| 812 | bool validateUniformParameters(const char* functionName, const WebGLUniformLocation*, Int32Array*, GC3Dsizei mod); |
| 813 | bool validateUniformParameters(const char* functionName, const WebGLUniformLocation*, void*, GC3Dsizei, GC3Dsizei mod); |
| 814 | bool validateUniformMatrixParameters(const char* functionName, const WebGLUniformLocation*, GC3Dboolean transpose, Float32Array*, GC3Dsizei mod); |
| 815 | bool validateUniformMatrixParameters(const char* functionName, const WebGLUniformLocation*, GC3Dboolean transpose, void*, GC3Dsizei, GC3Dsizei mod); |
| 816 | |
| 817 | // Helper function to validate parameters for bufferData. |
| 818 | // Return the current bound buffer to target, or 0 if parameters are invalid. |
| 819 | WebGLBuffer* validateBufferDataParameters(const char* functionName, GC3Denum target, GC3Denum usage); |
| 820 | |
| 821 | // Helper function for tex{Sub}Image2D to make sure image is ready and wouldn't taint Origin. |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 822 | bool validateHTMLImageElement(const char* functionName, HTMLImageElement*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 823 | |
| 824 | // Helper function for tex{Sub}Image2D to make sure canvas is ready and wouldn't taint Origin. |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 825 | bool validateHTMLCanvasElement(const char* functionName, HTMLCanvasElement*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 826 | |
| 827 | // Helper function for tex{Sub}Image2D to make sure video is ready wouldn't taint Origin. |
Ben Murdoch | df95704 | 2013-08-06 11:01:27 +0100 | [diff] [blame] | 828 | bool validateHTMLVideoElement(const char* functionName, HTMLVideoElement*, ExceptionState&); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 829 | |
Torne (Richard Coles) | 521d96e | 2013-06-19 11:58:24 +0100 | [diff] [blame] | 830 | // Helper function to validate drawArrays(Instanced) calls |
| 831 | bool validateDrawArrays(const char* functionName, GC3Denum mode, GC3Dint first, GC3Dsizei count); |
| 832 | |
| 833 | // Helper function to validate drawElements(Instanced) calls |
| 834 | bool validateDrawElements(const char* functionName, GC3Denum mode, GC3Dsizei count, GC3Denum type, long long offset); |
| 835 | |
| 836 | // Helper function to validate draw*Instanced calls |
| 837 | bool validateDrawInstanced(const char* functionName, GC3Dsizei primcount); |
| 838 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 839 | // Helper functions for vertexAttribNf{v}. |
| 840 | void vertexAttribfImpl(const char* functionName, GC3Duint index, GC3Dsizei expectedSize, GC3Dfloat, GC3Dfloat, GC3Dfloat, GC3Dfloat); |
| 841 | void vertexAttribfvImpl(const char* functionName, GC3Duint index, Float32Array*, GC3Dsizei expectedSize); |
| 842 | void vertexAttribfvImpl(const char* functionName, GC3Duint index, GC3Dfloat*, GC3Dsizei, GC3Dsizei expectedSize); |
| 843 | |
| 844 | // Helper function for delete* (deleteBuffer, deleteProgram, etc) functions. |
| 845 | // Return false if caller should return without further processing. |
| 846 | bool deleteObject(WebGLObject*); |
| 847 | |
| 848 | // Helper function for bind* (bindBuffer, bindTexture, etc) and useProgram. |
| 849 | // If the object has already been deleted, set deleted to true upon return. |
| 850 | // Return false if caller should return without further processing. |
| 851 | bool checkObjectToBeBound(const char* functionName, WebGLObject*, bool& deleted); |
| 852 | |
| 853 | void dispatchContextLostEvent(Timer<WebGLRenderingContext>*); |
| 854 | // Helper for restoration after context lost. |
| 855 | void maybeRestoreContext(Timer<WebGLRenderingContext>*); |
| 856 | |
| 857 | // Determine if we are running privileged code in the browser, for example, |
| 858 | // a Safari or Chrome extension. |
| 859 | bool allowPrivilegedExtensions() const; |
| 860 | |
| 861 | enum ConsoleDisplayPreference { |
| 862 | DisplayInConsole, |
| 863 | DontDisplayInConsole |
| 864 | }; |
| 865 | |
| 866 | // Wrapper for GraphicsContext3D::synthesizeGLError that sends a message |
| 867 | // to the JavaScript console. |
| 868 | void synthesizeGLError(GC3Denum, const char* functionName, const char* description, ConsoleDisplayPreference = DisplayInConsole); |
Ben Murdoch | e69819b | 2013-07-17 14:56:49 +0100 | [diff] [blame] | 869 | void emitGLWarning(const char* function, const char* reason); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 870 | |
| 871 | String ensureNotNull(const String&) const; |
| 872 | |
| 873 | // Enable or disable stencil test based on user setting and |
| 874 | // whether the current FBO has a stencil buffer. |
| 875 | void applyStencilTest(); |
| 876 | |
| 877 | // Helper for enabling or disabling a capability. |
| 878 | void enableOrDisable(GC3Denum capability, bool enable); |
| 879 | |
| 880 | // Clamp the width and height to GL_MAX_VIEWPORT_DIMS. |
| 881 | IntSize clampedCanvasSize(); |
| 882 | |
| 883 | // First time called, if EXT_draw_buffers is supported, query the value; otherwise return 0. |
| 884 | // Later, return the cached value. |
Torne (Richard Coles) | 06f816c | 2013-09-26 13:25:12 +0100 | [diff] [blame^] | 885 | GC3Dint maxDrawBuffers(); |
| 886 | GC3Dint maxColorAttachments(); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 887 | |
| 888 | void setBackDrawBuffer(GC3Denum); |
| 889 | |
| 890 | void restoreCurrentFramebuffer(); |
| 891 | void restoreCurrentTexture2D(); |
| 892 | |
Torne (Richard Coles) | e524955 | 2013-05-15 11:35:13 +0100 | [diff] [blame] | 893 | virtual void multisamplingChanged(bool); |
Torne (Richard Coles) | e1f1df5 | 2013-08-23 16:39:30 +0100 | [diff] [blame] | 894 | |
| 895 | void findNewMaxEnabledAttribIndex(); |
| 896 | void findNewMaxNonDefaultTextureUnit(); |
Torne (Richard Coles) | e524955 | 2013-05-15 11:35:13 +0100 | [diff] [blame] | 897 | |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 898 | friend class WebGLStateRestorer; |
| 899 | friend class WebGLRenderingContextEvictionManager; |
| 900 | |
| 901 | static Vector<WebGLRenderingContext*>& activeContexts(); |
| 902 | static Vector<WebGLRenderingContext*>& forciblyEvictedContexts(); |
| 903 | |
| 904 | static void activateContext(WebGLRenderingContext*); |
| 905 | static void deactivateContext(WebGLRenderingContext*, bool addToInactiveList); |
| 906 | static void willDestroyContext(WebGLRenderingContext*); |
| 907 | static void forciblyLoseOldestContext(const String& reason); |
Torne (Richard Coles) | 9bbd2f5 | 2013-09-19 22:37:05 +0100 | [diff] [blame] | 908 | // Return the least recently used context's position in the active context vector. |
| 909 | // If the vector is empty, return the maximum allowed active context number. |
| 910 | static size_t oldestContextIndex(); |
Torne (Richard Coles) | 53e740f | 2013-05-09 18:38:43 +0100 | [diff] [blame] | 911 | static IntSize oldestContextSize(); |
| 912 | }; |
| 913 | |
| 914 | } // namespace WebCore |
| 915 | |
| 916 | #endif |