зеркало из https://github.com/mozilla/gecko-dev.git
2184 строки
81 KiB
C++
2184 строки
81 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef WEBGLCONTEXT_H_
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#define WEBGLCONTEXT_H_
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#include <stdarg.h>
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#include "GLContextTypes.h"
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#include "GLDefs.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/CheckedInt.h"
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#include "mozilla/dom/BindingDeclarations.h"
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#include "mozilla/dom/HTMLCanvasElement.h"
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#include "mozilla/dom/TypedArray.h"
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#include "mozilla/EnumeratedArray.h"
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#include "mozilla/ErrorResult.h"
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#include "mozilla/gfx/2D.h"
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#include "mozilla/LinkedList.h"
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#include "mozilla/UniquePtr.h"
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#include "nsCycleCollectionNoteChild.h"
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#include "nsICanvasRenderingContextInternal.h"
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#include "nsLayoutUtils.h"
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#include "nsTArray.h"
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#include "nsWrapperCache.h"
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#include "SurfaceTypes.h"
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#include "ScopedGLHelpers.h"
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#include "TexUnpackBlob.h"
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#ifdef XP_MACOSX
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#include "ForceDiscreteGPUHelperCGL.h"
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#endif
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// Local
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#include "WebGLContextLossHandler.h"
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#include "WebGLContextUnchecked.h"
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#include "WebGLFormats.h"
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#include "WebGLObjectModel.h"
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#include "WebGLStrongTypes.h"
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#include "WebGLTexture.h"
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// Generated
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#include "nsIDOMEventListener.h"
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#include "nsIDOMWebGLRenderingContext.h"
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#include "nsICanvasRenderingContextInternal.h"
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#include "nsIObserver.h"
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#include "mozilla/dom/HTMLCanvasElement.h"
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#include "nsWrapperCache.h"
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#include "nsLayoutUtils.h"
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#include "mozilla/dom/WebGLRenderingContextBinding.h"
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#include "mozilla/dom/WebGL2RenderingContextBinding.h"
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class nsIDocShell;
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/*
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* Minimum value constants defined in 6.2 State Tables of OpenGL ES - 2.0.25
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* https://bugzilla.mozilla.org/show_bug.cgi?id=686732
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*
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* Exceptions: some of the following values are set to higher values than in the spec because
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* the values in the spec are ridiculously low. They are explicitly marked below
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*/
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#define MINVALUE_GL_MAX_TEXTURE_SIZE 1024 // Different from the spec, which sets it to 64 on page 162
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#define MINVALUE_GL_MAX_CUBE_MAP_TEXTURE_SIZE 512 // Different from the spec, which sets it to 16 on page 162
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#define MINVALUE_GL_MAX_VERTEX_ATTRIBS 8 // Page 164
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#define MINVALUE_GL_MAX_FRAGMENT_UNIFORM_VECTORS 16 // Page 164
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#define MINVALUE_GL_MAX_VERTEX_UNIFORM_VECTORS 128 // Page 164
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#define MINVALUE_GL_MAX_VARYING_VECTORS 8 // Page 164
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#define MINVALUE_GL_MAX_TEXTURE_IMAGE_UNITS 8 // Page 164
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#define MINVALUE_GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS 0 // Page 164
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#define MINVALUE_GL_MAX_RENDERBUFFER_SIZE 1024 // Different from the spec, which sets it to 1 on page 164
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#define MINVALUE_GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS 8 // Page 164
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/*
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* Minimum value constants define in 6.2 State Tables of OpenGL ES - 3.0.4
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*/
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#define MINVALUE_GL_MAX_3D_TEXTURE_SIZE 256
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#define MINVALUE_GL_MAX_ARRAY_TEXTURE_LAYERS 256
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/*
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* WebGL-only GLenums
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*/
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#define LOCAL_GL_BROWSER_DEFAULT_WEBGL 0x9244
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#define LOCAL_GL_CONTEXT_LOST_WEBGL 0x9242
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#define LOCAL_GL_MAX_CLIENT_WAIT_TIMEOUT_WEBGL 0x9247
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#define LOCAL_GL_UNPACK_COLORSPACE_CONVERSION_WEBGL 0x9243
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#define LOCAL_GL_UNPACK_FLIP_Y_WEBGL 0x9240
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#define LOCAL_GL_UNPACK_PREMULTIPLY_ALPHA_WEBGL 0x9241
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namespace mozilla {
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class ScopedCopyTexImageSource;
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class ScopedResolveTexturesForDraw;
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class ScopedUnpackReset;
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class WebGLActiveInfo;
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class WebGLBuffer;
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class WebGLExtensionBase;
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class WebGLFramebuffer;
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class WebGLProgram;
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class WebGLQuery;
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class WebGLRenderbuffer;
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class WebGLSampler;
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class WebGLShader;
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class WebGLShaderPrecisionFormat;
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class WebGLSync;
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class WebGLTexture;
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class WebGLTransformFeedback;
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class WebGLUniformLocation;
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class WebGLVertexArray;
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namespace dom {
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class Element;
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class ImageData;
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class OwningHTMLCanvasElementOrOffscreenCanvas;
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struct WebGLContextAttributes;
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template<typename> struct Nullable;
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} // namespace dom
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namespace gfx {
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class SourceSurface;
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class VRLayerChild;
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} // namespace gfx
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namespace webgl {
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struct LinkedProgramInfo;
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class ShaderValidator;
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class TexUnpackBlob;
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struct UniformInfo;
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struct UniformBlockInfo;
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} // namespace webgl
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WebGLTexelFormat GetWebGLTexelFormat(TexInternalFormat format);
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void AssertUintParamCorrect(gl::GLContext* gl, GLenum pname, GLuint shadow);
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struct WebGLContextOptions
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{
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// these are defaults
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WebGLContextOptions();
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bool operator==(const WebGLContextOptions& other) const {
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return
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alpha == other.alpha &&
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depth == other.depth &&
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stencil == other.stencil &&
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premultipliedAlpha == other.premultipliedAlpha &&
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antialias == other.antialias &&
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preserveDrawingBuffer == other.preserveDrawingBuffer;
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}
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bool operator!=(const WebGLContextOptions& other) const {
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return !operator==(other);
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}
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bool alpha;
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bool depth;
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bool stencil;
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bool premultipliedAlpha;
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bool antialias;
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bool preserveDrawingBuffer;
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bool failIfMajorPerformanceCaveat;
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};
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// From WebGLContextUtils
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TexTarget TexImageTargetToTexTarget(TexImageTarget texImageTarget);
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struct WebGLIntOrFloat {
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const enum {
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Int,
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Float,
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Uint
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} mType;
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union {
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GLint i;
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GLfloat f;
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GLuint u;
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} mValue;
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explicit WebGLIntOrFloat(GLint i) : mType(Int) { mValue.i = i; }
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explicit WebGLIntOrFloat(GLfloat f) : mType(Float) { mValue.f = f; }
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GLint AsInt() const { return (mType == Int) ? mValue.i : NS_lroundf(mValue.f); }
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GLfloat AsFloat() const { return (mType == Float) ? mValue.f : GLfloat(mValue.i); }
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};
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struct IndexedBufferBinding
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{
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WebGLRefPtr<WebGLBuffer> mBufferBinding;
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uint64_t mRangeStart;
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uint64_t mRangeSize;
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IndexedBufferBinding();
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uint64_t ByteCount() const;
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};
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////
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struct FloatOrInt final // For TexParameter[fi] and friends.
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{
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const bool isFloat;
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const GLfloat f;
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const GLint i;
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explicit FloatOrInt(GLint x)
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: isFloat(false)
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, f(x)
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, i(x)
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{ }
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explicit FloatOrInt(GLfloat x)
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: isFloat(true)
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, f(x)
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, i(roundf(x))
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{ }
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FloatOrInt& operator =(const FloatOrInt& x) {
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memcpy(this, &x, sizeof(x));
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return *this;
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}
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};
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////////////////////////////////////
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struct TexImageSource
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{
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const dom::ArrayBufferView* mView;
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GLuint mViewElemOffset;
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GLuint mViewElemLengthOverride;
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const WebGLsizeiptr* mPboOffset;
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const dom::ImageBitmap* mImageBitmap;
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const dom::ImageData* mImageData;
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const dom::Element* mDomElem;
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ErrorResult* mOut_error;
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protected:
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TexImageSource() {
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memset(this, 0, sizeof(*this));
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}
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};
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////
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struct TexImageSourceAdapter final : public TexImageSource
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{
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TexImageSourceAdapter(const dom::Nullable<dom::ArrayBufferView>* maybeView,
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ErrorResult*)
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{
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if (!maybeView->IsNull()) {
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mView = &(maybeView->Value());
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}
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}
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TexImageSourceAdapter(const dom::ArrayBufferView* view, ErrorResult*) {
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mView = view;
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}
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TexImageSourceAdapter(const dom::ArrayBufferView* view, GLuint viewElemOffset,
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GLuint viewElemLengthOverride = 0)
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{
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mView = view;
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mViewElemOffset = viewElemOffset;
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mViewElemLengthOverride = viewElemLengthOverride;
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}
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TexImageSourceAdapter(const WebGLsizeiptr* pboOffset, GLuint ignored1, GLuint ignored2 = 0) {
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mPboOffset = pboOffset;
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}
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TexImageSourceAdapter(const WebGLsizeiptr* pboOffset, ErrorResult* ignored) {
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mPboOffset = pboOffset;
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}
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TexImageSourceAdapter(const dom::ImageBitmap* imageBitmap, ErrorResult*) {
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mImageBitmap = imageBitmap;
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}
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TexImageSourceAdapter(const dom::ImageData* imageData, ErrorResult*) {
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mImageData = imageData;
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}
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TexImageSourceAdapter(const dom::Element* domElem, ErrorResult* const out_error) {
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mDomElem = domElem;
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mOut_error = out_error;
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}
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};
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////////////////////////////////////////////////////////////////////////////////
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class WebGLContext
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: public nsIDOMWebGLRenderingContext
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, public nsICanvasRenderingContextInternal
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, public nsSupportsWeakReference
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, public WebGLContextUnchecked
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, public WebGLRectangleObject
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, public nsWrapperCache
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{
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friend class ScopedDrawHelper;
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friend class ScopedDrawWithTransformFeedback;
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friend class ScopedFBRebinder;
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friend class WebGL2Context;
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friend class WebGLContextUserData;
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friend class WebGLExtensionCompressedTextureASTC;
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friend class WebGLExtensionCompressedTextureATC;
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friend class WebGLExtensionCompressedTextureES3;
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friend class WebGLExtensionCompressedTextureETC1;
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friend class WebGLExtensionCompressedTexturePVRTC;
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friend class WebGLExtensionCompressedTextureS3TC;
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friend class WebGLExtensionDepthTexture;
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friend class WebGLExtensionDisjointTimerQuery;
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friend class WebGLExtensionDrawBuffers;
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friend class WebGLExtensionLoseContext;
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friend class WebGLExtensionVertexArray;
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friend class WebGLMemoryTracker;
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friend struct webgl::UniformBlockInfo;
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enum {
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UNPACK_FLIP_Y_WEBGL = 0x9240,
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UNPACK_PREMULTIPLY_ALPHA_WEBGL = 0x9241,
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CONTEXT_LOST_WEBGL = 0x9242,
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UNPACK_COLORSPACE_CONVERSION_WEBGL = 0x9243,
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BROWSER_DEFAULT_WEBGL = 0x9244,
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UNMASKED_VENDOR_WEBGL = 0x9245,
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UNMASKED_RENDERER_WEBGL = 0x9246
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};
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static const uint32_t kMinMaxColorAttachments;
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static const uint32_t kMinMaxDrawBuffers;
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const uint32_t mMaxPerfWarnings;
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mutable uint64_t mNumPerfWarnings;
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const uint32_t mMaxAcceptableFBStatusInvals;
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public:
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WebGLContext();
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protected:
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virtual ~WebGLContext();
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(WebGLContext,
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nsIDOMWebGLRenderingContext)
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virtual JSObject* WrapObject(JSContext* cx, JS::Handle<JSObject*> givenProto) override = 0;
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NS_DECL_NSIDOMWEBGLRENDERINGCONTEXT
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virtual void OnVisibilityChange() override;
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virtual void OnMemoryPressure() override;
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// nsICanvasRenderingContextInternal
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virtual int32_t GetWidth() const override;
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virtual int32_t GetHeight() const override;
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NS_IMETHOD SetDimensions(int32_t width, int32_t height) override;
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NS_IMETHOD InitializeWithDrawTarget(nsIDocShell*,
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NotNull<gfx::DrawTarget*>) override
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{
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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NS_IMETHOD Reset() override {
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/* (InitializeWithSurface) */
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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virtual UniquePtr<uint8_t[]> GetImageBuffer(int32_t* out_format) override;
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NS_IMETHOD GetInputStream(const char* mimeType,
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const char16_t* encoderOptions,
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nsIInputStream** out_stream) override;
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already_AddRefed<mozilla::gfx::SourceSurface>
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GetSurfaceSnapshot(bool* out_premultAlpha) override;
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NS_IMETHOD SetIsOpaque(bool) override { return NS_OK; };
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bool GetIsOpaque() override { return false; }
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NS_IMETHOD SetContextOptions(JSContext* cx,
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JS::Handle<JS::Value> options,
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ErrorResult& aRvForDictionaryInit) override;
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NS_IMETHOD SetIsIPC(bool) override {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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/**
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* An abstract base class to be implemented by callers wanting to be notified
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* that a refresh has occurred. Callers must ensure an observer is removed
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* before it is destroyed.
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*/
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virtual void DidRefresh() override;
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NS_IMETHOD Redraw(const gfxRect&) override {
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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void SynthesizeGLError(GLenum err);
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void SynthesizeGLError(GLenum err, const char* fmt, ...) MOZ_FORMAT_PRINTF(3, 4);
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void ErrorInvalidEnum(const char* fmt = 0, ...) MOZ_FORMAT_PRINTF(2, 3);
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void ErrorInvalidOperation(const char* fmt = 0, ...) MOZ_FORMAT_PRINTF(2, 3);
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void ErrorInvalidValue(const char* fmt = 0, ...) MOZ_FORMAT_PRINTF(2, 3);
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void ErrorInvalidFramebufferOperation(const char* fmt = 0, ...) MOZ_FORMAT_PRINTF(2, 3);
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void ErrorInvalidEnumInfo(const char* info, GLenum enumValue);
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void ErrorInvalidEnumInfo(const char* info, const char* funcName,
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GLenum enumValue);
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void ErrorOutOfMemory(const char* fmt = 0, ...) MOZ_FORMAT_PRINTF(2, 3);
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void ErrorImplementationBug(const char* fmt = 0, ...) MOZ_FORMAT_PRINTF(2, 3);
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void ErrorInvalidEnumArg(const char* funcName, const char* argName, GLenum val);
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const char* ErrorName(GLenum error);
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/**
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* Return displayable name for GLenum.
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* This version is like gl::GLenumToStr but with out the GL_ prefix to
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* keep consistency with how errors are reported from WebGL.
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* Returns hex formatted version of glenum if glenum is unknown.
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*/
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static void EnumName(GLenum val, nsCString* out_name);
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void DummyReadFramebufferOperation(const char* funcName);
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WebGLTexture* ActiveBoundTextureForTarget(const TexTarget texTarget) const {
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switch (texTarget.get()) {
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case LOCAL_GL_TEXTURE_2D:
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return mBound2DTextures[mActiveTexture];
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case LOCAL_GL_TEXTURE_CUBE_MAP:
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return mBoundCubeMapTextures[mActiveTexture];
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case LOCAL_GL_TEXTURE_3D:
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return mBound3DTextures[mActiveTexture];
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case LOCAL_GL_TEXTURE_2D_ARRAY:
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return mBound2DArrayTextures[mActiveTexture];
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default:
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MOZ_CRASH("GFX: bad target");
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}
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}
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/* Use this function when you have the texture image target, for example:
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* GL_TEXTURE_2D, GL_TEXTURE_CUBE_MAP_[POSITIVE|NEGATIVE]_[X|Y|Z], and
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* not the actual texture binding target: GL_TEXTURE_2D or GL_TEXTURE_CUBE_MAP.
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*/
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WebGLTexture*
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ActiveBoundTextureForTexImageTarget(const TexImageTarget texImgTarget) const
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{
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const TexTarget texTarget = TexImageTargetToTexTarget(texImgTarget);
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return ActiveBoundTextureForTarget(texTarget);
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}
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void InvalidateResolveCacheForTextureWithTexUnit(const GLuint);
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already_AddRefed<Layer>
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GetCanvasLayer(nsDisplayListBuilder* builder, Layer* oldLayer,
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LayerManager* manager,
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bool aMirror = false) override;
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// Note that 'clean' here refers to its invalidation state, not the
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// contents of the buffer.
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void MarkContextClean() override { mInvalidated = false; }
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void MarkContextCleanForFrameCapture() override { mCapturedFrameInvalidated = false; }
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bool IsContextCleanForFrameCapture() override { return !mCapturedFrameInvalidated; }
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gl::GLContext* GL() const { return gl; }
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bool IsPremultAlpha() const { return mOptions.premultipliedAlpha; }
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bool IsPreservingDrawingBuffer() const { return mOptions.preserveDrawingBuffer; }
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bool PresentScreenBuffer();
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// Prepare the context for capture before compositing
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void BeginComposition();
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// Clean up the context after captured for compositing
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void EndComposition();
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// a number that increments every time we have an event that causes
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// all context resources to be lost.
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uint32_t Generation() const { return mGeneration.value(); }
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// This is similar to GLContext::ClearSafely, but tries to minimize the
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// amount of work it does.
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// It only clears the buffers we specify, and can reset its state without
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// first having to query anything, as WebGL knows its state at all times.
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void ForceClearFramebufferWithDefaultValues(GLbitfield bufferBits, bool fakeNoAlpha);
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// Calls ForceClearFramebufferWithDefaultValues() for the Context's 'screen'.
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void ClearScreen();
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void ClearBackbufferIfNeeded();
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bool MinCapabilityMode() const { return mMinCapability; }
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void RunContextLossTimer();
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void UpdateContextLossStatus();
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void EnqueueUpdateContextLossStatus();
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bool TryToRestoreContext();
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void AssertCachedBindings();
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void AssertCachedGlobalState();
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dom::HTMLCanvasElement* GetCanvas() const { return mCanvasElement; }
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// WebIDL WebGLRenderingContext API
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void Commit();
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void GetCanvas(Nullable<dom::OwningHTMLCanvasElementOrOffscreenCanvas>& retval);
|
|
GLsizei DrawingBufferWidth() const { return IsContextLost() ? 0 : mWidth; }
|
|
GLsizei DrawingBufferHeight() const {
|
|
return IsContextLost() ? 0 : mHeight;
|
|
}
|
|
|
|
layers::LayersBackend GetCompositorBackendType() const;
|
|
|
|
void
|
|
GetContextAttributes(dom::Nullable<dom::WebGLContextAttributes>& retval);
|
|
|
|
bool IsContextLost() const { return mContextStatus != ContextNotLost; }
|
|
void GetSupportedExtensions(dom::Nullable< nsTArray<nsString> >& retval,
|
|
dom::CallerType callerType);
|
|
void GetExtension(JSContext* cx, const nsAString& name,
|
|
JS::MutableHandle<JSObject*> retval,
|
|
dom::CallerType callerType, ErrorResult& rv);
|
|
void AttachShader(WebGLProgram& prog, WebGLShader& shader);
|
|
void BindAttribLocation(WebGLProgram& prog, GLuint location,
|
|
const nsAString& name);
|
|
void BindFramebuffer(GLenum target, WebGLFramebuffer* fb);
|
|
void BindRenderbuffer(GLenum target, WebGLRenderbuffer* fb);
|
|
void BindVertexArray(WebGLVertexArray* vao);
|
|
void BlendColor(GLclampf r, GLclampf g, GLclampf b, GLclampf a);
|
|
void BlendEquation(GLenum mode);
|
|
void BlendEquationSeparate(GLenum modeRGB, GLenum modeAlpha);
|
|
void BlendFunc(GLenum sfactor, GLenum dfactor);
|
|
void BlendFuncSeparate(GLenum srcRGB, GLenum dstRGB,
|
|
GLenum srcAlpha, GLenum dstAlpha);
|
|
GLenum CheckFramebufferStatus(GLenum target);
|
|
void Clear(GLbitfield mask);
|
|
void ClearColor(GLclampf r, GLclampf g, GLclampf b, GLclampf a);
|
|
void ClearDepth(GLclampf v);
|
|
void ClearStencil(GLint v);
|
|
void ColorMask(WebGLboolean r, WebGLboolean g, WebGLboolean b, WebGLboolean a);
|
|
void CompileShader(WebGLShader& shader);
|
|
void CompileShaderANGLE(WebGLShader* shader);
|
|
void CompileShaderBypass(WebGLShader* shader, const nsCString& shaderSource);
|
|
already_AddRefed<WebGLFramebuffer> CreateFramebuffer();
|
|
already_AddRefed<WebGLProgram> CreateProgram();
|
|
already_AddRefed<WebGLRenderbuffer> CreateRenderbuffer();
|
|
already_AddRefed<WebGLShader> CreateShader(GLenum type);
|
|
already_AddRefed<WebGLVertexArray> CreateVertexArray();
|
|
void CullFace(GLenum face);
|
|
void DeleteFramebuffer(WebGLFramebuffer* fb);
|
|
void DeleteProgram(WebGLProgram* prog);
|
|
void DeleteRenderbuffer(WebGLRenderbuffer* rb);
|
|
void DeleteShader(WebGLShader* shader);
|
|
void DeleteVertexArray(WebGLVertexArray* vao);
|
|
void DepthFunc(GLenum func);
|
|
void DepthMask(WebGLboolean b);
|
|
void DepthRange(GLclampf zNear, GLclampf zFar);
|
|
void DetachShader(WebGLProgram& prog, const WebGLShader& shader);
|
|
void DrawBuffers(const dom::Sequence<GLenum>& buffers);
|
|
void Flush();
|
|
void Finish();
|
|
void FramebufferRenderbuffer(GLenum target, GLenum attachment,
|
|
GLenum rbTarget, WebGLRenderbuffer* rb);
|
|
void FramebufferTexture2D(GLenum target, GLenum attachment,
|
|
GLenum texImageTarget, WebGLTexture* tex,
|
|
GLint level);
|
|
|
|
void FrontFace(GLenum mode);
|
|
already_AddRefed<WebGLActiveInfo> GetActiveAttrib(const WebGLProgram& prog,
|
|
GLuint index);
|
|
already_AddRefed<WebGLActiveInfo> GetActiveUniform(const WebGLProgram& prog,
|
|
GLuint index);
|
|
|
|
void
|
|
GetAttachedShaders(const WebGLProgram& prog,
|
|
dom::Nullable<nsTArray<RefPtr<WebGLShader>>>& retval);
|
|
|
|
GLint GetAttribLocation(const WebGLProgram& prog, const nsAString& name);
|
|
JS::Value GetBufferParameter(GLenum target, GLenum pname);
|
|
|
|
void GetBufferParameter(JSContext*, GLenum target, GLenum pname,
|
|
JS::MutableHandle<JS::Value> retval)
|
|
{
|
|
retval.set(GetBufferParameter(target, pname));
|
|
}
|
|
|
|
GLenum GetError();
|
|
virtual JS::Value GetFramebufferAttachmentParameter(JSContext* cx, GLenum target,
|
|
GLenum attachment, GLenum pname,
|
|
ErrorResult& rv);
|
|
|
|
void GetFramebufferAttachmentParameter(JSContext* cx, GLenum target,
|
|
GLenum attachment, GLenum pname,
|
|
JS::MutableHandle<JS::Value> retval,
|
|
ErrorResult& rv)
|
|
{
|
|
retval.set(GetFramebufferAttachmentParameter(cx, target, attachment,
|
|
pname, rv));
|
|
}
|
|
|
|
JS::Value GetProgramParameter(const WebGLProgram& prog, GLenum pname);
|
|
|
|
void GetProgramParameter(JSContext*, const WebGLProgram& prog, GLenum pname,
|
|
JS::MutableHandle<JS::Value> retval)
|
|
{
|
|
retval.set(GetProgramParameter(prog, pname));
|
|
}
|
|
|
|
void GetProgramInfoLog(const WebGLProgram& prog, nsACString& retval);
|
|
void GetProgramInfoLog(const WebGLProgram& prog, nsAString& retval);
|
|
JS::Value GetRenderbufferParameter(GLenum target, GLenum pname);
|
|
|
|
void GetRenderbufferParameter(JSContext*, GLenum target, GLenum pname,
|
|
JS::MutableHandle<JS::Value> retval)
|
|
{
|
|
retval.set(GetRenderbufferParameter(target, pname));
|
|
}
|
|
|
|
JS::Value GetShaderParameter(const WebGLShader& shader, GLenum pname);
|
|
|
|
void GetShaderParameter(JSContext*, const WebGLShader& shader, GLenum pname,
|
|
JS::MutableHandle<JS::Value> retval)
|
|
{
|
|
retval.set(GetShaderParameter(shader, pname));
|
|
}
|
|
|
|
already_AddRefed<WebGLShaderPrecisionFormat>
|
|
GetShaderPrecisionFormat(GLenum shadertype, GLenum precisiontype);
|
|
|
|
void GetShaderInfoLog(const WebGLShader& shader, nsACString& retval);
|
|
void GetShaderInfoLog(const WebGLShader& shader, nsAString& retval);
|
|
void GetShaderSource(const WebGLShader& shader, nsAString& retval);
|
|
|
|
JS::Value GetUniform(JSContext* cx, const WebGLProgram& prog,
|
|
const WebGLUniformLocation& loc);
|
|
|
|
void GetUniform(JSContext* cx, const WebGLProgram& prog,
|
|
const WebGLUniformLocation& loc,
|
|
JS::MutableHandle<JS::Value> retval)
|
|
{
|
|
retval.set(GetUniform(cx, prog, loc));
|
|
}
|
|
|
|
already_AddRefed<WebGLUniformLocation>
|
|
GetUniformLocation(const WebGLProgram& prog, const nsAString& name);
|
|
|
|
void Hint(GLenum target, GLenum mode);
|
|
bool IsFramebuffer(const WebGLFramebuffer* fb);
|
|
bool IsProgram(const WebGLProgram* prog);
|
|
bool IsRenderbuffer(const WebGLRenderbuffer* rb);
|
|
bool IsShader(const WebGLShader* shader);
|
|
bool IsVertexArray(const WebGLVertexArray* vao);
|
|
void LineWidth(GLfloat width);
|
|
void LinkProgram(WebGLProgram& prog);
|
|
void PixelStorei(GLenum pname, GLint param);
|
|
void PolygonOffset(GLfloat factor, GLfloat units);
|
|
|
|
already_AddRefed<layers::SharedSurfaceTextureClient> GetVRFrame();
|
|
bool StartVRPresentation();
|
|
|
|
////
|
|
|
|
webgl::PackingInfo
|
|
ValidImplementationColorReadPI(const webgl::FormatUsageInfo* usage) const;
|
|
|
|
protected:
|
|
bool ReadPixels_SharedPrecheck(dom::CallerType aCallerType,
|
|
ErrorResult& out_error);
|
|
void ReadPixelsImpl(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format,
|
|
GLenum type, void* data, uint32_t dataLen);
|
|
bool DoReadPixelsAndConvert(const webgl::FormatInfo* srcFormat, GLint x, GLint y,
|
|
GLsizei width, GLsizei height, GLenum format,
|
|
GLenum destType, void* dest, uint32_t dataLen,
|
|
uint32_t rowStride);
|
|
public:
|
|
void ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format,
|
|
GLenum type, const dom::Nullable<dom::ArrayBufferView>& maybeView,
|
|
dom::CallerType aCallerType, ErrorResult& rv)
|
|
{
|
|
const char funcName[] = "readPixels";
|
|
if (maybeView.IsNull()) {
|
|
ErrorInvalidValue("%s: `pixels` must not be null.", funcName);
|
|
return;
|
|
}
|
|
ReadPixels(x, y, width, height, format, type, maybeView.Value(), 0,
|
|
aCallerType, rv);
|
|
}
|
|
|
|
void ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format,
|
|
GLenum type, WebGLsizeiptr offset,
|
|
dom::CallerType, ErrorResult& out_error);
|
|
|
|
void ReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format,
|
|
GLenum type, const dom::ArrayBufferView& dstData, GLuint dstOffset,
|
|
dom::CallerType, ErrorResult& out_error);
|
|
|
|
////
|
|
|
|
void RenderbufferStorage(GLenum target, GLenum internalFormat,
|
|
GLsizei width, GLsizei height);
|
|
protected:
|
|
void RenderbufferStorage_base(const char* funcName, GLenum target,
|
|
GLsizei samples, GLenum internalformat,
|
|
GLsizei width, GLsizei height);
|
|
public:
|
|
void SampleCoverage(GLclampf value, WebGLboolean invert);
|
|
void Scissor(GLint x, GLint y, GLsizei width, GLsizei height);
|
|
void ShaderSource(WebGLShader& shader, const nsAString& source);
|
|
void StencilFunc(GLenum func, GLint ref, GLuint mask);
|
|
void StencilFuncSeparate(GLenum face, GLenum func, GLint ref, GLuint mask);
|
|
void StencilMask(GLuint mask);
|
|
void StencilMaskSeparate(GLenum face, GLuint mask);
|
|
void StencilOp(GLenum sfail, GLenum dpfail, GLenum dppass);
|
|
void StencilOpSeparate(GLenum face, GLenum sfail, GLenum dpfail,
|
|
GLenum dppass);
|
|
|
|
//////
|
|
|
|
void Uniform1f(WebGLUniformLocation* loc, GLfloat x);
|
|
void Uniform2f(WebGLUniformLocation* loc, GLfloat x, GLfloat y);
|
|
void Uniform3f(WebGLUniformLocation* loc, GLfloat x, GLfloat y, GLfloat z);
|
|
void Uniform4f(WebGLUniformLocation* loc, GLfloat x, GLfloat y, GLfloat z, GLfloat w);
|
|
|
|
void Uniform1i(WebGLUniformLocation* loc, GLint x);
|
|
void Uniform2i(WebGLUniformLocation* loc, GLint x, GLint y);
|
|
void Uniform3i(WebGLUniformLocation* loc, GLint x, GLint y, GLint z);
|
|
void Uniform4i(WebGLUniformLocation* loc, GLint x, GLint y, GLint z, GLint w);
|
|
|
|
void Uniform1ui(WebGLUniformLocation* loc, GLuint v0);
|
|
void Uniform2ui(WebGLUniformLocation* loc, GLuint v0, GLuint v1);
|
|
void Uniform3ui(WebGLUniformLocation* loc, GLuint v0, GLuint v1, GLuint v2);
|
|
void Uniform4ui(WebGLUniformLocation* loc, GLuint v0, GLuint v1, GLuint v2,
|
|
GLuint v3);
|
|
|
|
//////////////////////////
|
|
|
|
typedef dom::Float32ArrayOrUnrestrictedFloatSequence Float32ListU;
|
|
typedef dom::Int32ArrayOrLongSequence Int32ListU;
|
|
typedef dom::Uint32ArrayOrUnsignedLongSequence Uint32ListU;
|
|
|
|
protected:
|
|
template<typename elemT, typename viewT>
|
|
struct Arr {
|
|
const size_t elemCount;
|
|
const elemT* const elemBytes;
|
|
|
|
private:
|
|
static size_t ComputeAndReturnLength(const viewT& view) {
|
|
view.ComputeLengthAndData();
|
|
return view.LengthAllowShared();
|
|
}
|
|
|
|
public:
|
|
explicit Arr(const viewT& view)
|
|
: elemCount(ComputeAndReturnLength(view))
|
|
, elemBytes(view.DataAllowShared())
|
|
{ }
|
|
|
|
explicit Arr(const dom::Sequence<elemT>& seq)
|
|
: elemCount(seq.Length())
|
|
, elemBytes(seq.Elements())
|
|
{ }
|
|
|
|
Arr(size_t _elemCount, const elemT* _elemBytes)
|
|
: elemCount(_elemCount)
|
|
, elemBytes(_elemBytes)
|
|
{ }
|
|
|
|
////
|
|
|
|
static Arr From(const Float32ListU& list) {
|
|
if (list.IsFloat32Array())
|
|
return Arr(list.GetAsFloat32Array());
|
|
|
|
return Arr(list.GetAsUnrestrictedFloatSequence());
|
|
}
|
|
|
|
static Arr From(const Int32ListU& list) {
|
|
if (list.IsInt32Array())
|
|
return Arr(list.GetAsInt32Array());
|
|
|
|
return Arr(list.GetAsLongSequence());
|
|
}
|
|
|
|
static Arr From(const Uint32ListU& list) {
|
|
if (list.IsUint32Array())
|
|
return Arr(list.GetAsUint32Array());
|
|
|
|
return Arr(list.GetAsUnsignedLongSequence());
|
|
}
|
|
};
|
|
|
|
typedef Arr<GLfloat, dom::Float32Array> Float32Arr;
|
|
typedef Arr<GLint, dom::Int32Array> Int32Arr;
|
|
typedef Arr<GLuint, dom::Uint32Array> Uint32Arr;
|
|
|
|
////////////////
|
|
|
|
void UniformNfv(const char* funcName, uint8_t N, WebGLUniformLocation* loc,
|
|
const Float32Arr& arr, GLuint elemOffset, GLuint elemCountOverride);
|
|
void UniformNiv(const char* funcName, uint8_t N, WebGLUniformLocation* loc,
|
|
const Int32Arr& arr, GLuint elemOffset, GLuint elemCountOverride);
|
|
void UniformNuiv(const char* funcName, uint8_t N, WebGLUniformLocation* loc,
|
|
const Uint32Arr& arr, GLuint elemOffset, GLuint elemCountOverride);
|
|
|
|
void UniformMatrixAxBfv(const char* funcName, uint8_t A, uint8_t B,
|
|
WebGLUniformLocation* loc, bool transpose,
|
|
const Float32Arr& arr, GLuint elemOffset,
|
|
GLuint elemCountOverride);
|
|
|
|
////////////////
|
|
|
|
public:
|
|
#define FOO(N) \
|
|
void Uniform ## N ## fv(WebGLUniformLocation* loc, const Float32ListU& list, \
|
|
GLuint elemOffset = 0, GLuint elemCountOverride = 0) \
|
|
{ \
|
|
UniformNfv("uniform" #N "fv", N, loc, Float32Arr::From(list), elemOffset, \
|
|
elemCountOverride); \
|
|
}
|
|
|
|
FOO(1)
|
|
FOO(2)
|
|
FOO(3)
|
|
FOO(4)
|
|
|
|
#undef FOO
|
|
|
|
//////
|
|
|
|
#define FOO(N) \
|
|
void Uniform ## N ## iv(WebGLUniformLocation* loc, const Int32ListU& list, \
|
|
GLuint elemOffset = 0, GLuint elemCountOverride = 0) \
|
|
{ \
|
|
UniformNiv("uniform" #N "iv", N, loc, Int32Arr::From(list), elemOffset, \
|
|
elemCountOverride); \
|
|
}
|
|
|
|
FOO(1)
|
|
FOO(2)
|
|
FOO(3)
|
|
FOO(4)
|
|
|
|
#undef FOO
|
|
|
|
//////
|
|
|
|
#define FOO(N) \
|
|
void Uniform ## N ## uiv(WebGLUniformLocation* loc, const Uint32ListU& list, \
|
|
GLuint elemOffset = 0, GLuint elemCountOverride = 0) \
|
|
{ \
|
|
UniformNuiv("uniform" #N "uiv", N, loc, Uint32Arr::From(list), elemOffset, \
|
|
elemCountOverride); \
|
|
}
|
|
|
|
FOO(1)
|
|
FOO(2)
|
|
FOO(3)
|
|
FOO(4)
|
|
|
|
#undef FOO
|
|
|
|
//////
|
|
|
|
#define FOO(X,A,B) \
|
|
void UniformMatrix ## X ## fv(WebGLUniformLocation* loc, bool transpose, \
|
|
const Float32ListU& list, GLuint elemOffset = 0, \
|
|
GLuint elemCountOverride = 0) \
|
|
{ \
|
|
UniformMatrixAxBfv("uniformMatrix" #X "fv", A, B, loc, transpose, \
|
|
Float32Arr::From(list), elemOffset, elemCountOverride); \
|
|
}
|
|
|
|
FOO(2,2,2)
|
|
FOO(2x3,2,3)
|
|
FOO(2x4,2,4)
|
|
|
|
FOO(3x2,3,2)
|
|
FOO(3,3,3)
|
|
FOO(3x4,3,4)
|
|
|
|
FOO(4x2,4,2)
|
|
FOO(4x3,4,3)
|
|
FOO(4,4,4)
|
|
|
|
#undef FOO
|
|
|
|
////////////////////////////////////
|
|
|
|
void UseProgram(WebGLProgram* prog);
|
|
|
|
bool ValidateAttribArraySetter(const char* name, uint32_t count,
|
|
uint32_t arrayLength);
|
|
bool ValidateUniformLocation(WebGLUniformLocation* loc, const char* funcName);
|
|
bool ValidateUniformSetter(WebGLUniformLocation* loc, uint8_t setterSize,
|
|
GLenum setterType, const char* funcName);
|
|
bool ValidateUniformArraySetter(WebGLUniformLocation* loc,
|
|
uint8_t setterElemSize, GLenum setterType,
|
|
uint32_t setterArraySize, const char* funcName,
|
|
uint32_t* out_numElementsToUpload);
|
|
bool ValidateUniformMatrixArraySetter(WebGLUniformLocation* loc,
|
|
uint8_t setterCols,
|
|
uint8_t setterRows,
|
|
GLenum setterType,
|
|
uint32_t setterArraySize,
|
|
bool setterTranspose,
|
|
const char* funcName,
|
|
uint32_t* out_numElementsToUpload);
|
|
void ValidateProgram(const WebGLProgram& prog);
|
|
bool ValidateUniformLocation(const char* info, WebGLUniformLocation* loc);
|
|
bool ValidateSamplerUniformSetter(const char* info,
|
|
WebGLUniformLocation* loc, GLint value);
|
|
void Viewport(GLint x, GLint y, GLsizei width, GLsizei height);
|
|
// -----------------------------------------------------------------------------
|
|
// WEBGL_lose_context
|
|
public:
|
|
void LoseContext();
|
|
void RestoreContext();
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// Buffer Objects (WebGLContextBuffers.cpp)
|
|
void BindBuffer(GLenum target, WebGLBuffer* buffer);
|
|
void BindBufferBase(GLenum target, GLuint index, WebGLBuffer* buf);
|
|
void BindBufferRange(GLenum target, GLuint index, WebGLBuffer* buf,
|
|
WebGLintptr offset, WebGLsizeiptr size);
|
|
|
|
private:
|
|
void BufferDataImpl(GLenum target, size_t dataLen, const uint8_t* data, GLenum usage);
|
|
|
|
public:
|
|
void BufferData(GLenum target, WebGLsizeiptr size, GLenum usage);
|
|
void BufferData(GLenum target, const dom::Nullable<dom::ArrayBuffer>& maybeSrc,
|
|
GLenum usage);
|
|
void BufferData(GLenum target, const dom::ArrayBufferView& srcData, GLenum usage,
|
|
GLuint srcElemOffset = 0, GLuint srcElemCountOverride = 0);
|
|
|
|
private:
|
|
void BufferSubDataImpl(GLenum target, WebGLsizeiptr dstByteOffset,
|
|
size_t srcDataLen, const uint8_t* srcData);
|
|
|
|
public:
|
|
void BufferSubData(GLenum target, WebGLsizeiptr dstByteOffset,
|
|
const dom::ArrayBufferView& src, GLuint srcElemOffset = 0,
|
|
GLuint srcElemCountOverride = 0);
|
|
void BufferSubData(GLenum target, WebGLsizeiptr dstByteOffset,
|
|
const dom::ArrayBuffer& src);
|
|
void BufferSubData(GLenum target, WebGLsizeiptr dstByteOffset,
|
|
const dom::SharedArrayBuffer& src);
|
|
|
|
already_AddRefed<WebGLBuffer> CreateBuffer();
|
|
void DeleteBuffer(WebGLBuffer* buf);
|
|
bool IsBuffer(WebGLBuffer* buf);
|
|
|
|
protected:
|
|
// bound buffer state
|
|
WebGLRefPtr<WebGLBuffer> mBoundArrayBuffer;
|
|
WebGLRefPtr<WebGLBuffer> mBoundCopyReadBuffer;
|
|
WebGLRefPtr<WebGLBuffer> mBoundCopyWriteBuffer;
|
|
WebGLRefPtr<WebGLBuffer> mBoundPixelPackBuffer;
|
|
WebGLRefPtr<WebGLBuffer> mBoundPixelUnpackBuffer;
|
|
WebGLRefPtr<WebGLBuffer> mBoundUniformBuffer;
|
|
|
|
std::vector<IndexedBufferBinding> mIndexedUniformBufferBindings;
|
|
|
|
WebGLRefPtr<WebGLBuffer>& GetBufferSlotByTarget(GLenum target);
|
|
WebGLRefPtr<WebGLBuffer>& GetBufferSlotByTargetIndexed(GLenum target,
|
|
GLuint index);
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// Queries (WebGL2ContextQueries.cpp)
|
|
protected:
|
|
WebGLRefPtr<WebGLQuery> mQuerySlot_SamplesPassed;
|
|
WebGLRefPtr<WebGLQuery> mQuerySlot_TFPrimsWritten;
|
|
WebGLRefPtr<WebGLQuery> mQuerySlot_TimeElapsed;
|
|
|
|
WebGLRefPtr<WebGLQuery>*
|
|
ValidateQuerySlotByTarget(const char* funcName, GLenum target);
|
|
|
|
public:
|
|
already_AddRefed<WebGLQuery> CreateQuery(const char* funcName = nullptr);
|
|
void DeleteQuery(WebGLQuery* query, const char* funcName = nullptr);
|
|
bool IsQuery(const WebGLQuery* query, const char* funcName = nullptr);
|
|
void BeginQuery(GLenum target, WebGLQuery& query, const char* funcName = nullptr);
|
|
void EndQuery(GLenum target, const char* funcName = nullptr);
|
|
void GetQuery(JSContext* cx, GLenum target, GLenum pname,
|
|
JS::MutableHandleValue retval, const char* funcName = nullptr);
|
|
void GetQueryParameter(JSContext* cx, const WebGLQuery& query, GLenum pname,
|
|
JS::MutableHandleValue retval, const char* funcName = nullptr);
|
|
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// State and State Requests (WebGLContextState.cpp)
|
|
public:
|
|
void Disable(GLenum cap);
|
|
void Enable(GLenum cap);
|
|
bool GetStencilBits(GLint* const out_stencilBits);
|
|
bool GetChannelBits(const char* funcName, GLenum pname, GLint* const out_val);
|
|
virtual JS::Value GetParameter(JSContext* cx, GLenum pname, ErrorResult& rv);
|
|
|
|
void GetParameter(JSContext* cx, GLenum pname,
|
|
JS::MutableHandle<JS::Value> retval, ErrorResult& rv)
|
|
{
|
|
retval.set(GetParameter(cx, pname, rv));
|
|
}
|
|
|
|
void GetParameterIndexed(JSContext* cx, GLenum pname, GLuint index,
|
|
JS::MutableHandle<JS::Value> retval);
|
|
bool IsEnabled(GLenum cap);
|
|
|
|
private:
|
|
// State tracking slots
|
|
realGLboolean mDitherEnabled;
|
|
realGLboolean mRasterizerDiscardEnabled;
|
|
realGLboolean mScissorTestEnabled;
|
|
realGLboolean mDepthTestEnabled;
|
|
realGLboolean mStencilTestEnabled;
|
|
GLenum mGenerateMipmapHint;
|
|
|
|
bool ValidateCapabilityEnum(GLenum cap, const char* info);
|
|
realGLboolean* GetStateTrackingSlot(GLenum cap);
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// Texture funcions (WebGLContextTextures.cpp)
|
|
public:
|
|
void ActiveTexture(GLenum texUnit);
|
|
void BindTexture(GLenum texTarget, WebGLTexture* tex);
|
|
already_AddRefed<WebGLTexture> CreateTexture();
|
|
void DeleteTexture(WebGLTexture* tex);
|
|
void GenerateMipmap(GLenum texTarget);
|
|
|
|
void GetTexParameter(JSContext*, GLenum texTarget, GLenum pname,
|
|
JS::MutableHandle<JS::Value> retval)
|
|
{
|
|
retval.set(GetTexParameter(texTarget, pname));
|
|
}
|
|
|
|
bool IsTexture(WebGLTexture* tex);
|
|
|
|
void TexParameterf(GLenum texTarget, GLenum pname, GLfloat param) {
|
|
TexParameter_base(texTarget, pname, FloatOrInt(param));
|
|
}
|
|
|
|
void TexParameteri(GLenum texTarget, GLenum pname, GLint param) {
|
|
TexParameter_base(texTarget, pname, FloatOrInt(param));
|
|
}
|
|
|
|
protected:
|
|
JS::Value GetTexParameter(GLenum texTarget, GLenum pname);
|
|
void TexParameter_base(GLenum texTarget, GLenum pname, const FloatOrInt& param);
|
|
|
|
virtual bool IsTexParamValid(GLenum pname) const;
|
|
|
|
////////////////////////////////////
|
|
|
|
public:
|
|
template<typename T>
|
|
void CompressedTexImage2D(GLenum target, GLint level, GLenum internalFormat,
|
|
GLsizei width, GLsizei height, GLint border,
|
|
const T& anySrc, GLuint viewElemOffset = 0,
|
|
GLuint viewElemLengthOverride = 0)
|
|
{
|
|
const char funcName[] = "compressedTexImage2D";
|
|
const uint8_t funcDims = 2;
|
|
const GLsizei depth = 1;
|
|
const TexImageSourceAdapter src(&anySrc, viewElemOffset, viewElemLengthOverride);
|
|
CompressedTexImage(funcName, funcDims, target, level, internalFormat, width,
|
|
height, depth, border, src);
|
|
}
|
|
|
|
template<typename T>
|
|
void CompressedTexSubImage2D(GLenum target, GLint level, GLint xOffset, GLint yOffset,
|
|
GLsizei width, GLsizei height, GLenum unpackFormat,
|
|
const T& anySrc, GLuint viewElemOffset = 0,
|
|
GLuint viewElemLengthOverride = 0)
|
|
{
|
|
const char funcName[] = "compressedTexSubImage2D";
|
|
const uint8_t funcDims = 2;
|
|
const GLint zOffset = 0;
|
|
const GLsizei depth = 1;
|
|
const TexImageSourceAdapter src(&anySrc, viewElemOffset, viewElemLengthOverride);
|
|
CompressedTexSubImage(funcName, funcDims, target, level, xOffset, yOffset,
|
|
zOffset, width, height, depth, unpackFormat, src);
|
|
}
|
|
|
|
protected:
|
|
void CompressedTexImage(const char* funcName, uint8_t funcDims, GLenum target,
|
|
GLint level, GLenum internalFormat, GLsizei width,
|
|
GLsizei height, GLsizei depth, GLint border,
|
|
const TexImageSource& src);
|
|
|
|
void CompressedTexSubImage(const char* funcName, uint8_t funcDims, GLenum target,
|
|
GLint level, GLint xOffset, GLint yOffset, GLint zOffset,
|
|
GLsizei width, GLsizei height, GLsizei depth,
|
|
GLenum unpackFormat, const TexImageSource& src);
|
|
|
|
////////////////////////////////////
|
|
|
|
public:
|
|
void CopyTexImage2D(GLenum target, GLint level, GLenum internalFormat, GLint x,
|
|
GLint y, GLsizei width, GLsizei height, GLint border);
|
|
|
|
void CopyTexSubImage2D(GLenum target, GLint level, GLint xOffset,
|
|
GLint yOffset, GLint x, GLint y, GLsizei width,
|
|
GLsizei height)
|
|
{
|
|
const char funcName[] = "copyTexSubImage2D";
|
|
const uint8_t funcDims = 2;
|
|
const GLint zOffset = 0;
|
|
CopyTexSubImage(funcName, funcDims, target, level, xOffset, yOffset, zOffset,
|
|
x, y, width, height);
|
|
}
|
|
|
|
protected:
|
|
void CopyTexSubImage(const char* funcName, uint8_t funcDims, GLenum target,
|
|
GLint level, GLint xOffset, GLint yOffset, GLint zOffset,
|
|
GLint x, GLint y, GLsizei width, GLsizei height);
|
|
|
|
////////////////////////////////////
|
|
// TexImage
|
|
|
|
// Implicit width/height uploads
|
|
|
|
public:
|
|
template<typename T>
|
|
void TexImage2D(GLenum target, GLint level, GLenum internalFormat,
|
|
GLenum unpackFormat, GLenum unpackType, const T& src,
|
|
ErrorResult& out_error)
|
|
{
|
|
GLsizei width = 0;
|
|
GLsizei height = 0;
|
|
GLint border = 0;
|
|
TexImage2D(target, level, internalFormat, width, height, border, unpackFormat,
|
|
unpackType, src, out_error);
|
|
}
|
|
|
|
template<typename T>
|
|
void TexSubImage2D(GLenum target, GLint level, GLint xOffset, GLint yOffset,
|
|
GLenum unpackFormat, GLenum unpackType, const T& src,
|
|
ErrorResult& out_error)
|
|
{
|
|
GLsizei width = 0;
|
|
GLsizei height = 0;
|
|
TexSubImage2D(target, level, xOffset, yOffset, width, height, unpackFormat,
|
|
unpackType, src, out_error);
|
|
}
|
|
|
|
////
|
|
|
|
template<typename T>
|
|
void TexImage2D(GLenum target, GLint level, GLenum internalFormat, GLsizei width,
|
|
GLsizei height, GLint border, GLenum unpackFormat, GLenum unpackType,
|
|
const T& anySrc, ErrorResult& out_error)
|
|
{
|
|
const TexImageSourceAdapter src(&anySrc, &out_error);
|
|
TexImage2D(target, level, internalFormat, width, height, border, unpackFormat,
|
|
unpackType, src);
|
|
}
|
|
|
|
void TexImage2D(GLenum target, GLint level, GLenum internalFormat, GLsizei width,
|
|
GLsizei height, GLint border, GLenum unpackFormat, GLenum unpackType,
|
|
const dom::ArrayBufferView& view, GLuint viewElemOffset,
|
|
ErrorResult&)
|
|
{
|
|
const TexImageSourceAdapter src(&view, viewElemOffset);
|
|
TexImage2D(target, level, internalFormat, width, height, border, unpackFormat,
|
|
unpackType, src);
|
|
}
|
|
|
|
protected:
|
|
void TexImage2D(GLenum target, GLint level, GLenum internalFormat, GLsizei width,
|
|
GLsizei height, GLint border, GLenum unpackFormat,
|
|
GLenum unpackType, const TexImageSource& src)
|
|
{
|
|
const char funcName[] = "texImage2D";
|
|
const uint8_t funcDims = 2;
|
|
const GLsizei depth = 1;
|
|
TexImage(funcName, funcDims, target, level, internalFormat, width, height, depth,
|
|
border, unpackFormat, unpackType, src);
|
|
}
|
|
|
|
void TexImage(const char* funcName, uint8_t funcDims, GLenum target, GLint level,
|
|
GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth,
|
|
GLint border, GLenum unpackFormat, GLenum unpackType,
|
|
const TexImageSource& src);
|
|
|
|
////
|
|
|
|
public:
|
|
template<typename T>
|
|
void TexSubImage2D(GLenum target, GLint level, GLint xOffset, GLint yOffset,
|
|
GLsizei width, GLsizei height, GLenum unpackFormat,
|
|
GLenum unpackType, const T& anySrc, ErrorResult& out_error)
|
|
{
|
|
const TexImageSourceAdapter src(&anySrc, &out_error);
|
|
TexSubImage2D(target, level, xOffset, yOffset, width, height, unpackFormat,
|
|
unpackType, src);
|
|
}
|
|
|
|
void TexSubImage2D(GLenum target, GLint level, GLint xOffset, GLint yOffset,
|
|
GLsizei width, GLsizei height, GLenum unpackFormat,
|
|
GLenum unpackType, const dom::ArrayBufferView& view,
|
|
GLuint viewElemOffset, ErrorResult&)
|
|
{
|
|
const TexImageSourceAdapter src(&view, viewElemOffset);
|
|
TexSubImage2D(target, level, xOffset, yOffset, width, height, unpackFormat,
|
|
unpackType, src);
|
|
}
|
|
|
|
protected:
|
|
void TexSubImage2D(GLenum target, GLint level, GLint xOffset, GLint yOffset,
|
|
GLsizei width, GLsizei height, GLenum unpackFormat,
|
|
GLenum unpackType, const TexImageSource& src)
|
|
{
|
|
const char funcName[] = "texSubImage2D";
|
|
const uint8_t funcDims = 2;
|
|
const GLint zOffset = 0;
|
|
const GLsizei depth = 1;
|
|
TexSubImage(funcName, funcDims, target, level, xOffset, yOffset, zOffset, width,
|
|
height, depth, unpackFormat, unpackType, src);
|
|
}
|
|
|
|
void TexSubImage(const char* funcName, uint8_t funcDims, GLenum target, GLint level,
|
|
GLint xOffset, GLint yOffset, GLint zOffset, GLsizei width,
|
|
GLsizei height, GLsizei depth, GLenum unpackFormat,
|
|
GLenum unpackType, const TexImageSource& src);
|
|
|
|
////////////////////////////////////
|
|
// WebGLTextureUpload.cpp
|
|
public:
|
|
UniquePtr<webgl::TexUnpackBlob>
|
|
From(const char* funcName, TexImageTarget target, GLsizei rawWidth, GLsizei rawHeight,
|
|
GLsizei rawDepth, GLint border, const TexImageSource& src,
|
|
dom::Uint8ClampedArray* const scopedArr);
|
|
|
|
protected:
|
|
bool ValidateTexImageSpecification(const char* funcName, uint8_t funcDims,
|
|
GLenum texImageTarget, GLint level,
|
|
GLsizei width, GLsizei height, GLsizei depth,
|
|
GLint border,
|
|
TexImageTarget* const out_target,
|
|
WebGLTexture** const out_texture,
|
|
WebGLTexture::ImageInfo** const out_imageInfo);
|
|
bool ValidateTexImageSelection(const char* funcName, uint8_t funcDims,
|
|
GLenum texImageTarget, GLint level, GLint xOffset,
|
|
GLint yOffset, GLint zOffset, GLsizei width,
|
|
GLsizei height, GLsizei depth,
|
|
TexImageTarget* const out_target,
|
|
WebGLTexture** const out_texture,
|
|
WebGLTexture::ImageInfo** const out_imageInfo);
|
|
bool ValidateUnpackInfo(const char* funcName, bool usePBOs, GLenum format,
|
|
GLenum type, webgl::PackingInfo* const out);
|
|
|
|
UniquePtr<webgl::TexUnpackBlob>
|
|
FromDomElem(const char* funcName, TexImageTarget target, uint32_t width,
|
|
uint32_t height, uint32_t depth, const dom::Element& elem,
|
|
ErrorResult* const out_error);
|
|
|
|
UniquePtr<webgl::TexUnpackBytes>
|
|
FromCompressed(const char* funcName, TexImageTarget target, GLsizei rawWidth,
|
|
GLsizei rawHeight, GLsizei rawDepth, GLint border,
|
|
const TexImageSource& src);
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// Vertices Feature (WebGLContextVertices.cpp)
|
|
GLenum mPrimRestartTypeBytes;
|
|
|
|
public:
|
|
void DrawArrays(GLenum mode, GLint first, GLsizei count);
|
|
void DrawArraysInstanced(GLenum mode, GLint first, GLsizei count,
|
|
GLsizei primcount);
|
|
void DrawElements(GLenum mode, GLsizei count, GLenum type,
|
|
WebGLintptr byteOffset, const char* funcName = nullptr);
|
|
void DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type,
|
|
WebGLintptr byteOffset, GLsizei primcount);
|
|
|
|
void EnableVertexAttribArray(GLuint index);
|
|
void DisableVertexAttribArray(GLuint index);
|
|
|
|
JS::Value GetVertexAttrib(JSContext* cx, GLuint index, GLenum pname,
|
|
ErrorResult& rv);
|
|
|
|
void GetVertexAttrib(JSContext* cx, GLuint index, GLenum pname,
|
|
JS::MutableHandle<JS::Value> retval, ErrorResult& rv)
|
|
{
|
|
retval.set(GetVertexAttrib(cx, index, pname, rv));
|
|
}
|
|
|
|
WebGLsizeiptr GetVertexAttribOffset(GLuint index, GLenum pname);
|
|
|
|
////
|
|
|
|
void VertexAttrib4f(GLuint index, GLfloat x, GLfloat y, GLfloat z, GLfloat w,
|
|
const char* funcName = nullptr);
|
|
|
|
////
|
|
|
|
void VertexAttrib1f(GLuint index, GLfloat x) {
|
|
VertexAttrib4f(index, x, 0, 0, 1, "vertexAttrib1f");
|
|
}
|
|
void VertexAttrib2f(GLuint index, GLfloat x, GLfloat y) {
|
|
VertexAttrib4f(index, x, y, 0, 1, "vertexAttrib2f");
|
|
}
|
|
void VertexAttrib3f(GLuint index, GLfloat x, GLfloat y, GLfloat z) {
|
|
VertexAttrib4f(index, x, y, z, 1, "vertexAttrib3f");
|
|
}
|
|
|
|
////
|
|
|
|
void VertexAttrib1fv(GLuint index, const Float32ListU& list) {
|
|
const char funcName[] = "vertexAttrib1fv";
|
|
const auto& arr = Float32Arr::From(list);
|
|
if (!ValidateAttribArraySetter(funcName, 1, arr.elemCount))
|
|
return;
|
|
|
|
VertexAttrib4f(index, arr.elemBytes[0], 0, 0, 1, funcName);
|
|
}
|
|
|
|
void VertexAttrib2fv(GLuint index, const Float32ListU& list) {
|
|
const char funcName[] = "vertexAttrib2fv";
|
|
const auto& arr = Float32Arr::From(list);
|
|
if (!ValidateAttribArraySetter(funcName, 2, arr.elemCount))
|
|
return;
|
|
|
|
VertexAttrib4f(index, arr.elemBytes[0], arr.elemBytes[1], 0, 1, funcName);
|
|
}
|
|
|
|
void VertexAttrib3fv(GLuint index, const Float32ListU& list) {
|
|
const char funcName[] = "vertexAttrib3fv";
|
|
const auto& arr = Float32Arr::From(list);
|
|
if (!ValidateAttribArraySetter(funcName, 3, arr.elemCount))
|
|
return;
|
|
|
|
VertexAttrib4f(index, arr.elemBytes[0], arr.elemBytes[1], arr.elemBytes[2], 1,
|
|
funcName);
|
|
}
|
|
|
|
void VertexAttrib4fv(GLuint index, const Float32ListU& list) {
|
|
const char funcName[] = "vertexAttrib4fv";
|
|
const auto& arr = Float32Arr::From(list);
|
|
if (!ValidateAttribArraySetter(funcName, 4, arr.elemCount))
|
|
return;
|
|
|
|
VertexAttrib4f(index, arr.elemBytes[0], arr.elemBytes[1], arr.elemBytes[2],
|
|
arr.elemBytes[3], funcName);
|
|
}
|
|
|
|
////
|
|
|
|
protected:
|
|
void VertexAttribAnyPointer(const char* funcName, bool isFuncInt, GLuint index,
|
|
GLint size, GLenum type, bool normalized, GLsizei stride,
|
|
WebGLintptr byteOffset);
|
|
|
|
public:
|
|
void VertexAttribPointer(GLuint index, GLint size, GLenum type,
|
|
WebGLboolean normalized, GLsizei stride,
|
|
WebGLintptr byteOffset)
|
|
{
|
|
const char funcName[] = "vertexAttribPointer";
|
|
const bool isFuncInt = false;
|
|
VertexAttribAnyPointer(funcName, isFuncInt, index, size, type, normalized, stride,
|
|
byteOffset);
|
|
}
|
|
|
|
void VertexAttribDivisor(GLuint index, GLuint divisor);
|
|
|
|
private:
|
|
// Cache the max number of vertices and instances that can be read from
|
|
// bound VBOs (result of ValidateBuffers).
|
|
bool mBufferFetchingIsVerified;
|
|
bool mBufferFetchingHasPerVertex;
|
|
uint32_t mMaxFetchedVertices;
|
|
uint32_t mMaxFetchedInstances;
|
|
bool mBufferFetch_IsAttrib0Active;
|
|
|
|
bool DrawArrays_check(const char* funcName, GLenum mode, GLint first,
|
|
GLsizei vertCount, GLsizei instanceCount);
|
|
bool DrawElements_check(const char* funcName, GLenum mode, GLsizei vertCount,
|
|
GLenum type, WebGLintptr byteOffset,
|
|
GLsizei instanceCount);
|
|
bool DrawInstanced_check(const char* info);
|
|
void Draw_cleanup(const char* funcName);
|
|
|
|
void VertexAttrib1fv_base(GLuint index, uint32_t arrayLength,
|
|
const GLfloat* ptr);
|
|
void VertexAttrib2fv_base(GLuint index, uint32_t arrayLength,
|
|
const GLfloat* ptr);
|
|
void VertexAttrib3fv_base(GLuint index, uint32_t arrayLength,
|
|
const GLfloat* ptr);
|
|
void VertexAttrib4fv_base(GLuint index, uint32_t arrayLength,
|
|
const GLfloat* ptr);
|
|
|
|
bool ValidateBufferFetching(const char* info);
|
|
bool BindArrayAttribToLocation0(WebGLProgram* prog);
|
|
|
|
// -----------------------------------------------------------------------------
|
|
// PROTECTED
|
|
protected:
|
|
WebGLVertexAttrib0Status WhatDoesVertexAttrib0Need() const;
|
|
bool DoFakeVertexAttrib0(const char* funcName, GLuint vertexCount);
|
|
void UndoFakeVertexAttrib0();
|
|
|
|
inline void InvalidateBufferFetching()
|
|
{
|
|
mBufferFetchingIsVerified = false;
|
|
mBufferFetchingHasPerVertex = false;
|
|
mMaxFetchedVertices = 0;
|
|
mMaxFetchedInstances = 0;
|
|
}
|
|
|
|
CheckedUint32 mGeneration;
|
|
|
|
WebGLContextOptions mOptions;
|
|
|
|
bool mInvalidated;
|
|
bool mCapturedFrameInvalidated;
|
|
bool mResetLayer;
|
|
bool mLayerIsMirror;
|
|
bool mOptionsFrozen;
|
|
bool mMinCapability;
|
|
bool mDisableExtensions;
|
|
bool mIsMesa;
|
|
bool mLoseContextOnMemoryPressure;
|
|
bool mCanLoseContextInForeground;
|
|
bool mRestoreWhenVisible;
|
|
bool mShouldPresent;
|
|
bool mBackbufferNeedsClear;
|
|
bool mDisableFragHighP;
|
|
|
|
template<typename WebGLObjectType>
|
|
void DeleteWebGLObjectsArray(nsTArray<WebGLObjectType>& array);
|
|
|
|
GLuint mActiveTexture;
|
|
GLenum mDefaultFB_DrawBuffer0;
|
|
|
|
// glGetError sources:
|
|
bool mEmitContextLostErrorOnce;
|
|
GLenum mWebGLError;
|
|
GLenum mUnderlyingGLError;
|
|
GLenum GetAndFlushUnderlyingGLErrors();
|
|
|
|
bool mBypassShaderValidation;
|
|
|
|
webgl::ShaderValidator* CreateShaderValidator(GLenum shaderType) const;
|
|
|
|
// some GL constants
|
|
uint32_t mGLMaxVertexAttribs;
|
|
int32_t mGLMaxTextureUnits;
|
|
int32_t mGLMaxTextureImageUnits;
|
|
int32_t mGLMaxVertexTextureImageUnits;
|
|
int32_t mGLMaxVaryingVectors;
|
|
int32_t mGLMaxFragmentUniformVectors;
|
|
int32_t mGLMaxVertexUniformVectors;
|
|
uint32_t mGLMaxTransformFeedbackSeparateAttribs;
|
|
GLuint mGLMaxUniformBufferBindings;
|
|
|
|
// What is supported:
|
|
uint32_t mGLMaxColorAttachments;
|
|
uint32_t mGLMaxDrawBuffers;
|
|
// What we're allowing:
|
|
uint32_t mImplMaxColorAttachments;
|
|
uint32_t mImplMaxDrawBuffers;
|
|
|
|
uint32_t mImplMaxViewportDims[2];
|
|
|
|
public:
|
|
GLenum LastColorAttachmentEnum() const {
|
|
return LOCAL_GL_COLOR_ATTACHMENT0 + mImplMaxColorAttachments - 1;
|
|
}
|
|
|
|
const decltype(mOptions)& Options() const { return mOptions; }
|
|
|
|
protected:
|
|
|
|
// Texture sizes are often not actually the GL values. Let's be explicit that these
|
|
// are implementation limits.
|
|
uint32_t mImplMaxTextureSize;
|
|
uint32_t mImplMaxCubeMapTextureSize;
|
|
uint32_t mImplMax3DTextureSize;
|
|
uint32_t mImplMaxArrayTextureLayers;
|
|
uint32_t mImplMaxRenderbufferSize;
|
|
|
|
public:
|
|
GLuint MaxVertexAttribs() const {
|
|
return mGLMaxVertexAttribs;
|
|
}
|
|
|
|
GLuint GLMaxTextureUnits() const {
|
|
return mGLMaxTextureUnits;
|
|
}
|
|
|
|
bool IsFormatValidForFB(TexInternalFormat format) const;
|
|
|
|
protected:
|
|
// Represents current status of the context with respect to context loss.
|
|
// That is, whether the context is lost, and what part of the context loss
|
|
// process we currently are at.
|
|
// This is used to support the WebGL spec's asyncronous nature in handling
|
|
// context loss.
|
|
enum ContextStatus {
|
|
// The context is stable; there either are none or we don't know of any.
|
|
ContextNotLost,
|
|
// The context has been lost, but we have not yet sent an event to the
|
|
// script informing it of this.
|
|
ContextLostAwaitingEvent,
|
|
// The context has been lost, and we have sent the script an event
|
|
// informing it of this.
|
|
ContextLost,
|
|
// The context is lost, an event has been sent to the script, and the
|
|
// script correctly handled the event. We are waiting for the context to
|
|
// be restored.
|
|
ContextLostAwaitingRestore
|
|
};
|
|
|
|
// -------------------------------------------------------------------------
|
|
// WebGL extensions (implemented in WebGLContextExtensions.cpp)
|
|
typedef EnumeratedArray<WebGLExtensionID, WebGLExtensionID::Max,
|
|
RefPtr<WebGLExtensionBase>> ExtensionsArrayType;
|
|
|
|
ExtensionsArrayType mExtensions;
|
|
|
|
// enable an extension. the extension should not be enabled before.
|
|
void EnableExtension(WebGLExtensionID ext);
|
|
|
|
// Enable an extension if it's supported. Return the extension on success.
|
|
WebGLExtensionBase* EnableSupportedExtension(dom::CallerType callerType,
|
|
WebGLExtensionID ext);
|
|
|
|
public:
|
|
// returns true if the extension has been enabled by calling getExtension.
|
|
bool IsExtensionEnabled(WebGLExtensionID ext) const;
|
|
|
|
protected:
|
|
// returns true if the extension is supported for this caller type (this decides what getSupportedExtensions exposes)
|
|
bool IsExtensionSupported(dom::CallerType callerType,
|
|
WebGLExtensionID ext) const;
|
|
bool IsExtensionSupported(WebGLExtensionID ext) const;
|
|
|
|
static const char* GetExtensionString(WebGLExtensionID ext);
|
|
|
|
nsTArray<GLenum> mCompressedTextureFormats;
|
|
|
|
// -------------------------------------------------------------------------
|
|
// WebGL 2 specifics (implemented in WebGL2Context.cpp)
|
|
public:
|
|
virtual bool IsWebGL2() const = 0;
|
|
|
|
struct FailureReason {
|
|
nsCString key; // For reporting.
|
|
nsCString info;
|
|
|
|
FailureReason() { }
|
|
|
|
template<typename A, typename B>
|
|
FailureReason(const A& _key, const B& _info)
|
|
: key(nsCString(_key))
|
|
, info(nsCString(_info))
|
|
{ }
|
|
};
|
|
protected:
|
|
bool InitWebGL2(FailureReason* const out_failReason);
|
|
|
|
bool CreateAndInitGL(bool forceEnabled,
|
|
std::vector<FailureReason>* const out_failReasons);
|
|
|
|
bool ResizeBackbuffer(uint32_t width, uint32_t height);
|
|
|
|
typedef already_AddRefed<gl::GLContext> FnCreateGL_T(const gl::SurfaceCaps& caps,
|
|
gl::CreateContextFlags flags,
|
|
WebGLContext* webgl,
|
|
std::vector<FailureReason>* const out_failReasons);
|
|
|
|
bool CreateAndInitGLWith(FnCreateGL_T fnCreateGL, const gl::SurfaceCaps& baseCaps,
|
|
gl::CreateContextFlags flags,
|
|
std::vector<FailureReason>* const out_failReasons);
|
|
|
|
void ThrowEvent_WebGLContextCreationError(const nsACString& text);
|
|
|
|
// -------------------------------------------------------------------------
|
|
// Validation functions (implemented in WebGLContextValidate.cpp)
|
|
bool InitAndValidateGL(FailureReason* const out_failReason);
|
|
|
|
bool ValidateBlendEquationEnum(GLenum cap, const char* info);
|
|
bool ValidateBlendFuncDstEnum(GLenum mode, const char* info);
|
|
bool ValidateBlendFuncSrcEnum(GLenum mode, const char* info);
|
|
bool ValidateBlendFuncEnumsCompatibility(GLenum sfactor, GLenum dfactor,
|
|
const char* info);
|
|
bool ValidateComparisonEnum(GLenum target, const char* info);
|
|
bool ValidateStencilOpEnum(GLenum action, const char* info);
|
|
bool ValidateFaceEnum(GLenum face, const char* info);
|
|
bool ValidateTexInputData(GLenum type, js::Scalar::Type jsArrayType,
|
|
WebGLTexImageFunc func, WebGLTexDimensions dims);
|
|
bool ValidateDrawModeEnum(GLenum mode, const char* info);
|
|
bool ValidateAttribIndex(GLuint index, const char* info);
|
|
bool ValidateAttribPointer(bool integerMode, GLuint index, GLint size, GLenum type,
|
|
WebGLboolean normalized, GLsizei stride,
|
|
WebGLintptr byteOffset, const char* info);
|
|
bool ValidateStencilParamsForDrawCall();
|
|
|
|
bool ValidateCopyTexImage(TexInternalFormat srcFormat, TexInternalFormat dstformat,
|
|
WebGLTexImageFunc func, WebGLTexDimensions dims);
|
|
|
|
bool ValidateTexImage(TexImageTarget texImageTarget,
|
|
GLint level, GLenum internalFormat,
|
|
GLint xoffset, GLint yoffset, GLint zoffset,
|
|
GLint width, GLint height, GLint depth,
|
|
GLint border, GLenum format, GLenum type,
|
|
WebGLTexImageFunc func, WebGLTexDimensions dims);
|
|
bool ValidateTexImageFormat(GLenum internalFormat, WebGLTexImageFunc func,
|
|
WebGLTexDimensions dims);
|
|
bool ValidateTexImageType(GLenum type, WebGLTexImageFunc func,
|
|
WebGLTexDimensions dims);
|
|
bool ValidateTexImageFormatAndType(GLenum format, GLenum type,
|
|
WebGLTexImageFunc func,
|
|
WebGLTexDimensions dims);
|
|
bool ValidateCompTexImageInternalFormat(GLenum format,
|
|
WebGLTexImageFunc func,
|
|
WebGLTexDimensions dims);
|
|
bool ValidateCopyTexImageInternalFormat(GLenum format,
|
|
WebGLTexImageFunc func,
|
|
WebGLTexDimensions dims);
|
|
bool ValidateTexImageSize(TexImageTarget texImageTarget, GLint level,
|
|
GLint width, GLint height, GLint depth,
|
|
WebGLTexImageFunc func, WebGLTexDimensions dims);
|
|
bool ValidateTexSubImageSize(GLint x, GLint y, GLint z, GLsizei width,
|
|
GLsizei height, GLsizei depth,
|
|
GLsizei baseWidth, GLsizei baseHeight,
|
|
GLsizei baseDepth, WebGLTexImageFunc func,
|
|
WebGLTexDimensions dims);
|
|
bool ValidateCompTexImageSize(GLint level, GLenum internalFormat,
|
|
GLint xoffset, GLint yoffset, GLsizei width,
|
|
GLsizei height, GLsizei levelWidth,
|
|
GLsizei levelHeight, WebGLTexImageFunc func,
|
|
WebGLTexDimensions dims);
|
|
bool ValidateCompTexImageDataSize(GLint level, GLenum internalFormat,
|
|
GLsizei width, GLsizei height,
|
|
uint32_t byteLength,
|
|
WebGLTexImageFunc func,
|
|
WebGLTexDimensions dims);
|
|
|
|
bool ValidateUniformLocationForProgram(WebGLUniformLocation* location,
|
|
WebGLProgram* program,
|
|
const char* funcName);
|
|
|
|
bool ValidateCurFBForRead(const char* funcName,
|
|
const webgl::FormatUsageInfo** const out_format,
|
|
uint32_t* const out_width, uint32_t* const out_height);
|
|
|
|
bool HasDrawBuffers() const {
|
|
return IsWebGL2() ||
|
|
IsExtensionEnabled(WebGLExtensionID::WEBGL_draw_buffers);
|
|
}
|
|
|
|
WebGLRefPtr<WebGLBuffer>* ValidateBufferSlot(const char* funcName, GLenum target);
|
|
public:
|
|
WebGLBuffer* ValidateBufferSelection(const char* funcName, GLenum target);
|
|
protected:
|
|
IndexedBufferBinding* ValidateIndexedBufferSlot(const char* funcName, GLenum target,
|
|
GLuint index);
|
|
|
|
bool ValidateIndexedBufferBinding(const char* funcName, GLenum target, GLuint index,
|
|
WebGLRefPtr<WebGLBuffer>** const out_genericBinding,
|
|
IndexedBufferBinding** const out_indexedBinding);
|
|
|
|
bool ValidateNonNegative(const char* funcName, const char* argName, int64_t val) {
|
|
if (MOZ_UNLIKELY(val < 0)) {
|
|
ErrorInvalidValue("%s: `%s` must be non-negative.", funcName, argName);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
public:
|
|
template<typename T>
|
|
bool ValidateNonNull(const char* funcName, const dom::Nullable<T>& maybe) {
|
|
if (maybe.IsNull()) {
|
|
ErrorInvalidValue("%s: `null` is invalid.", funcName);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
bool ValidateArrayBufferView(const char* funcName, const dom::ArrayBufferView& view,
|
|
GLuint elemOffset, GLuint elemCountOverride,
|
|
uint8_t** const out_bytes, size_t* const out_byteLen);
|
|
|
|
protected:
|
|
////
|
|
|
|
void Invalidate();
|
|
void DestroyResourcesAndContext();
|
|
|
|
void MakeContextCurrent() const;
|
|
|
|
// helpers
|
|
|
|
bool ConvertImage(size_t width, size_t height, size_t srcStride,
|
|
size_t dstStride, const uint8_t* src, uint8_t* dst,
|
|
WebGLTexelFormat srcFormat, bool srcPremultiplied,
|
|
WebGLTexelFormat dstFormat, bool dstPremultiplied,
|
|
size_t dstTexelSize);
|
|
|
|
//////
|
|
public:
|
|
bool ValidateObjectAllowDeleted(const char* funcName,
|
|
const WebGLContextBoundObject& object)
|
|
{
|
|
if (!object.IsCompatibleWithContext(this)) {
|
|
ErrorInvalidOperation("%s: Object from different WebGL context (or older"
|
|
" generation of this one) passed as argument.",
|
|
funcName);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ValidateObject(const char* funcName, const WebGLDeletableObject& object,
|
|
bool isShaderOrProgram = false)
|
|
{
|
|
if (!ValidateObjectAllowDeleted(funcName, object))
|
|
return false;
|
|
|
|
if (isShaderOrProgram) {
|
|
/* GLES 3.0.5 p45:
|
|
* "Commands that accept shader or program object names will generate the
|
|
* error INVALID_VALUE if the provided name is not the name of either a
|
|
* shader or program object[.]"
|
|
* Further, shaders and programs appear to be different from other objects,
|
|
* in that their lifetimes are better defined. However, they also appear to
|
|
* allow use of objects marked for deletion, and only reject
|
|
* actually-destroyed objects.
|
|
*/
|
|
if (object.IsDeleted()) {
|
|
ErrorInvalidValue("%s: Shader or program object argument cannot have been"
|
|
" deleted.",
|
|
funcName);
|
|
return false;
|
|
}
|
|
} else {
|
|
if (object.IsDeleteRequested()) {
|
|
ErrorInvalidOperation("%s: Object argument cannot have been marked for"
|
|
" deletion.",
|
|
funcName);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
////
|
|
|
|
bool ValidateObject(const char* funcName, const WebGLProgram& object);
|
|
bool ValidateObject(const char* funcName, const WebGLShader& object);
|
|
|
|
////
|
|
|
|
bool ValidateIsObject(const char* funcName,
|
|
const WebGLDeletableObject* object) const
|
|
{
|
|
if (IsContextLost())
|
|
return false;
|
|
|
|
if (!object)
|
|
return false;
|
|
|
|
if (!object->IsCompatibleWithContext(this))
|
|
return false;
|
|
|
|
if (object->IsDeleted())
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool ValidateDeleteObject(const char* funcName, const WebGLDeletableObject* object) {
|
|
if (IsContextLost())
|
|
return false;
|
|
|
|
if (!object)
|
|
return false;
|
|
|
|
if (!ValidateObjectAllowDeleted(funcName, *object))
|
|
return false;
|
|
|
|
if (object->IsDeleteRequested())
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
////
|
|
|
|
private:
|
|
// -------------------------------------------------------------------------
|
|
// Context customization points
|
|
virtual WebGLVertexArray* CreateVertexArrayImpl();
|
|
|
|
public:
|
|
void ForceLoseContext(bool simulateLoss = false);
|
|
|
|
protected:
|
|
void ForceRestoreContext();
|
|
|
|
nsTArray<WebGLRefPtr<WebGLTexture> > mBound2DTextures;
|
|
nsTArray<WebGLRefPtr<WebGLTexture> > mBoundCubeMapTextures;
|
|
nsTArray<WebGLRefPtr<WebGLTexture> > mBound3DTextures;
|
|
nsTArray<WebGLRefPtr<WebGLTexture> > mBound2DArrayTextures;
|
|
nsTArray<WebGLRefPtr<WebGLSampler> > mBoundSamplers;
|
|
|
|
void ResolveTexturesForDraw() const;
|
|
|
|
WebGLRefPtr<WebGLProgram> mCurrentProgram;
|
|
RefPtr<const webgl::LinkedProgramInfo> mActiveProgramLinkInfo;
|
|
|
|
bool ValidateFramebufferTarget(GLenum target, const char* const info);
|
|
bool ValidateInvalidateFramebuffer(const char* funcName, GLenum target,
|
|
const dom::Sequence<GLenum>& attachments,
|
|
ErrorResult* const out_rv,
|
|
std::vector<GLenum>* const scopedVector,
|
|
GLsizei* const out_glNumAttachments,
|
|
const GLenum** const out_glAttachments);
|
|
|
|
WebGLRefPtr<WebGLFramebuffer> mBoundDrawFramebuffer;
|
|
WebGLRefPtr<WebGLFramebuffer> mBoundReadFramebuffer;
|
|
WebGLRefPtr<WebGLRenderbuffer> mBoundRenderbuffer;
|
|
WebGLRefPtr<WebGLTransformFeedback> mBoundTransformFeedback;
|
|
WebGLRefPtr<WebGLVertexArray> mBoundVertexArray;
|
|
|
|
LinkedList<WebGLBuffer> mBuffers;
|
|
LinkedList<WebGLFramebuffer> mFramebuffers;
|
|
LinkedList<WebGLProgram> mPrograms;
|
|
LinkedList<WebGLQuery> mQueries;
|
|
LinkedList<WebGLRenderbuffer> mRenderbuffers;
|
|
LinkedList<WebGLSampler> mSamplers;
|
|
LinkedList<WebGLShader> mShaders;
|
|
LinkedList<WebGLSync> mSyncs;
|
|
LinkedList<WebGLTexture> mTextures;
|
|
LinkedList<WebGLTransformFeedback> mTransformFeedbacks;
|
|
LinkedList<WebGLVertexArray> mVertexArrays;
|
|
|
|
WebGLRefPtr<WebGLTransformFeedback> mDefaultTransformFeedback;
|
|
WebGLRefPtr<WebGLVertexArray> mDefaultVertexArray;
|
|
|
|
// PixelStore parameters
|
|
uint32_t mPixelStore_UnpackImageHeight;
|
|
uint32_t mPixelStore_UnpackSkipImages;
|
|
uint32_t mPixelStore_UnpackRowLength;
|
|
uint32_t mPixelStore_UnpackSkipRows;
|
|
uint32_t mPixelStore_UnpackSkipPixels;
|
|
uint32_t mPixelStore_UnpackAlignment;
|
|
uint32_t mPixelStore_PackRowLength;
|
|
uint32_t mPixelStore_PackSkipRows;
|
|
uint32_t mPixelStore_PackSkipPixels;
|
|
uint32_t mPixelStore_PackAlignment;
|
|
|
|
CheckedUint32 GetUnpackSize(bool isFunc3D, uint32_t width, uint32_t height,
|
|
uint32_t depth, uint8_t bytesPerPixel);
|
|
|
|
bool ValidatePackSize(const char* funcName, uint32_t width, uint32_t height,
|
|
uint8_t bytesPerPixel, uint32_t* const out_rowStride,
|
|
uint32_t* const out_endOffset);
|
|
|
|
GLenum mPixelStore_ColorspaceConversion;
|
|
bool mPixelStore_FlipY;
|
|
bool mPixelStore_PremultiplyAlpha;
|
|
|
|
////////////////////////////////////
|
|
class FakeBlackTexture {
|
|
public:
|
|
static UniquePtr<FakeBlackTexture> Create(gl::GLContext* gl,
|
|
TexTarget target,
|
|
FakeBlackType type);
|
|
gl::GLContext* const mGL;
|
|
const GLuint mGLName;
|
|
|
|
~FakeBlackTexture();
|
|
protected:
|
|
explicit FakeBlackTexture(gl::GLContext* gl);
|
|
};
|
|
|
|
UniquePtr<FakeBlackTexture> mFakeBlack_2D_0000;
|
|
UniquePtr<FakeBlackTexture> mFakeBlack_2D_0001;
|
|
UniquePtr<FakeBlackTexture> mFakeBlack_CubeMap_0000;
|
|
UniquePtr<FakeBlackTexture> mFakeBlack_CubeMap_0001;
|
|
UniquePtr<FakeBlackTexture> mFakeBlack_3D_0000;
|
|
UniquePtr<FakeBlackTexture> mFakeBlack_3D_0001;
|
|
UniquePtr<FakeBlackTexture> mFakeBlack_2D_Array_0000;
|
|
UniquePtr<FakeBlackTexture> mFakeBlack_2D_Array_0001;
|
|
|
|
bool BindFakeBlack(uint32_t texUnit, TexTarget target, FakeBlackType fakeBlack);
|
|
|
|
////////////////////////////////////
|
|
|
|
protected:
|
|
GLuint mEmptyTFO;
|
|
|
|
// Generic Vertex Attributes
|
|
// Though CURRENT_VERTEX_ATTRIB is listed under "Vertex Shader State" in the spec
|
|
// state tables, this isn't vertex shader /object/ state. This array is merely state
|
|
// useful to vertex shaders, but is global state.
|
|
UniquePtr<GLenum[]> mGenericVertexAttribTypes;
|
|
uint8_t mGenericVertexAttrib0Data[sizeof(float) * 4];
|
|
|
|
GLuint mFakeVertexAttrib0BufferObject;
|
|
size_t mFakeVertexAttrib0BufferObjectSize;
|
|
bool mFakeVertexAttrib0DataDefined;
|
|
uint8_t mFakeVertexAttrib0Data[sizeof(float) * 4];
|
|
|
|
JSObject* GetVertexAttribFloat32Array(JSContext* cx, GLuint index);
|
|
JSObject* GetVertexAttribInt32Array(JSContext* cx, GLuint index);
|
|
JSObject* GetVertexAttribUint32Array(JSContext* cx, GLuint index);
|
|
|
|
GLint mStencilRefFront;
|
|
GLint mStencilRefBack;
|
|
GLuint mStencilValueMaskFront;
|
|
GLuint mStencilValueMaskBack;
|
|
GLuint mStencilWriteMaskFront;
|
|
GLuint mStencilWriteMaskBack;
|
|
realGLboolean mColorWriteMask[4];
|
|
realGLboolean mDepthWriteMask;
|
|
GLfloat mColorClearValue[4];
|
|
GLint mStencilClearValue;
|
|
GLfloat mDepthClearValue;
|
|
|
|
GLint mViewportX;
|
|
GLint mViewportY;
|
|
GLsizei mViewportWidth;
|
|
GLsizei mViewportHeight;
|
|
bool mAlreadyWarnedAboutViewportLargerThanDest;
|
|
|
|
GLfloat mLineWidth;
|
|
|
|
WebGLContextLossHandler mContextLossHandler;
|
|
bool mAllowContextRestore;
|
|
bool mLastLossWasSimulated;
|
|
ContextStatus mContextStatus;
|
|
bool mContextLostErrorSet;
|
|
|
|
// Used for some hardware (particularly Tegra 2 and 4) that likes to
|
|
// be Flushed while doing hundreds of draw calls.
|
|
int mDrawCallsSinceLastFlush;
|
|
|
|
int mAlreadyGeneratedWarnings;
|
|
int mMaxWarnings;
|
|
bool mAlreadyWarnedAboutFakeVertexAttrib0;
|
|
|
|
bool ShouldGenerateWarnings() const;
|
|
|
|
bool ShouldGeneratePerfWarnings() const {
|
|
return mNumPerfWarnings < mMaxPerfWarnings;
|
|
}
|
|
|
|
uint64_t mLastUseIndex;
|
|
|
|
bool mNeedsFakeNoAlpha;
|
|
bool mNeedsFakeNoDepth;
|
|
bool mNeedsFakeNoStencil;
|
|
bool mNeedsEmulatedLoneDepthStencil;
|
|
|
|
bool mNeedsIndexValidation;
|
|
|
|
const bool mAllowFBInvalidation;
|
|
|
|
bool Has64BitTimestamps() const;
|
|
|
|
struct ScopedDrawCallWrapper final {
|
|
WebGLContext& mWebGL;
|
|
const bool mFakeNoAlpha;
|
|
const bool mFakeNoDepth;
|
|
const bool mFakeNoStencil;
|
|
|
|
static bool ShouldFakeNoAlpha(WebGLContext& webgl) {
|
|
// We should only be doing this if we're about to draw to the backbuffer, but
|
|
// the backbuffer needs to have this fake-no-alpha workaround.
|
|
return !webgl.mBoundDrawFramebuffer &&
|
|
webgl.mNeedsFakeNoAlpha &&
|
|
webgl.mColorWriteMask[3] != false;
|
|
}
|
|
|
|
static bool ShouldFakeNoDepth(WebGLContext& webgl) {
|
|
// We should only be doing this if we're about to draw to the backbuffer.
|
|
return !webgl.mBoundDrawFramebuffer &&
|
|
webgl.mNeedsFakeNoDepth &&
|
|
webgl.mDepthTestEnabled;
|
|
}
|
|
|
|
static bool HasDepthButNoStencil(const WebGLFramebuffer* fb);
|
|
|
|
static bool ShouldFakeNoStencil(WebGLContext& webgl) {
|
|
if (!webgl.mStencilTestEnabled)
|
|
return false;
|
|
|
|
if (!webgl.mBoundDrawFramebuffer) {
|
|
if (webgl.mNeedsFakeNoStencil)
|
|
return true;
|
|
|
|
if (webgl.mNeedsEmulatedLoneDepthStencil &&
|
|
webgl.mOptions.depth && !webgl.mOptions.stencil)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
if (webgl.mNeedsEmulatedLoneDepthStencil &&
|
|
HasDepthButNoStencil(webgl.mBoundDrawFramebuffer))
|
|
{
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
////
|
|
|
|
explicit ScopedDrawCallWrapper(WebGLContext& webgl);
|
|
~ScopedDrawCallWrapper();
|
|
};
|
|
|
|
void OnBeforeReadCall();
|
|
|
|
void LoseOldestWebGLContextIfLimitExceeded();
|
|
void UpdateLastUseIndex();
|
|
|
|
template <typename WebGLObjectType>
|
|
JS::Value WebGLObjectAsJSValue(JSContext* cx, const WebGLObjectType*,
|
|
ErrorResult& rv) const;
|
|
template <typename WebGLObjectType>
|
|
JSObject* WebGLObjectAsJSObject(JSContext* cx, const WebGLObjectType*,
|
|
ErrorResult& rv) const;
|
|
|
|
#ifdef XP_MACOSX
|
|
// see bug 713305. This RAII helper guarantees that we're on the discrete GPU, during its lifetime
|
|
// Debouncing note: we don't want to switch GPUs too frequently, so try to not create and destroy
|
|
// these objects at high frequency. Having WebGLContext's hold one such object seems fine,
|
|
// because WebGLContext objects only go away during GC, which shouldn't happen too frequently.
|
|
// If in the future GC becomes much more frequent, we may have to revisit then (maybe use a timer).
|
|
ForceDiscreteGPUHelperCGL mForceDiscreteGPUHelper;
|
|
#endif
|
|
|
|
public:
|
|
// console logging helpers
|
|
void GenerateWarning(const char* fmt, ...) MOZ_FORMAT_PRINTF(2, 3);
|
|
void GenerateWarning(const char* fmt, va_list ap);
|
|
|
|
void GeneratePerfWarning(const char* fmt, ...) const MOZ_FORMAT_PRINTF(2, 3);
|
|
|
|
public:
|
|
UniquePtr<webgl::FormatUsageAuthority> mFormatUsage;
|
|
|
|
virtual UniquePtr<webgl::FormatUsageAuthority>
|
|
CreateFormatUsage(gl::GLContext* gl) const = 0;
|
|
|
|
|
|
const decltype(mBound2DTextures)* TexListForElemType(GLenum elemType) const;
|
|
|
|
// Friend list
|
|
friend class ScopedCopyTexImageSource;
|
|
friend class ScopedResolveTexturesForDraw;
|
|
friend class ScopedUnpackReset;
|
|
friend class webgl::TexUnpackBlob;
|
|
friend class webgl::TexUnpackBytes;
|
|
friend class webgl::TexUnpackImage;
|
|
friend class webgl::TexUnpackSurface;
|
|
friend struct webgl::UniformInfo;
|
|
friend class WebGLTexture;
|
|
friend class WebGLFBAttachPoint;
|
|
friend class WebGLFramebuffer;
|
|
friend class WebGLRenderbuffer;
|
|
friend class WebGLProgram;
|
|
friend class WebGLQuery;
|
|
friend class WebGLBuffer;
|
|
friend class WebGLSampler;
|
|
friend class WebGLShader;
|
|
friend class WebGLSync;
|
|
friend class WebGLTransformFeedback;
|
|
friend class WebGLUniformLocation;
|
|
friend class WebGLVertexArray;
|
|
friend class WebGLVertexArrayFake;
|
|
friend class WebGLVertexArrayGL;
|
|
};
|
|
|
|
// used by DOM bindings in conjunction with GetParentObject
|
|
inline nsISupports*
|
|
ToSupports(WebGLContext* webgl)
|
|
{
|
|
return static_cast<nsIDOMWebGLRenderingContext*>(webgl);
|
|
}
|
|
|
|
// Returns `value` rounded to the next highest multiple of `multiple`.
|
|
// AKA PadToAlignment, StrideForAlignment.
|
|
template<typename V, typename M>
|
|
V
|
|
RoundUpToMultipleOf(const V& value, const M& multiple)
|
|
{
|
|
return ((value + multiple - 1) / multiple) * multiple;
|
|
}
|
|
|
|
bool
|
|
ValidateTexTarget(WebGLContext* webgl, const char* funcName, uint8_t funcDims,
|
|
GLenum rawTexTarget, TexTarget* const out_texTarget,
|
|
WebGLTexture** const out_tex);
|
|
bool
|
|
ValidateTexImageTarget(WebGLContext* webgl, const char* funcName, uint8_t funcDims,
|
|
GLenum rawTexImageTarget, TexImageTarget* const out_texImageTarget,
|
|
WebGLTexture** const out_tex);
|
|
|
|
class ScopedUnpackReset final
|
|
: public gl::ScopedGLWrapper<ScopedUnpackReset>
|
|
{
|
|
friend struct gl::ScopedGLWrapper<ScopedUnpackReset>;
|
|
|
|
private:
|
|
WebGLContext* const mWebGL;
|
|
|
|
public:
|
|
explicit ScopedUnpackReset(WebGLContext* webgl);
|
|
|
|
private:
|
|
void UnwrapImpl();
|
|
};
|
|
|
|
class ScopedFBRebinder final
|
|
: public gl::ScopedGLWrapper<ScopedFBRebinder>
|
|
{
|
|
friend struct gl::ScopedGLWrapper<ScopedFBRebinder>;
|
|
|
|
private:
|
|
WebGLContext* const mWebGL;
|
|
|
|
public:
|
|
explicit ScopedFBRebinder(WebGLContext* webgl)
|
|
: ScopedGLWrapper<ScopedFBRebinder>(webgl->gl)
|
|
, mWebGL(webgl)
|
|
{ }
|
|
|
|
private:
|
|
void UnwrapImpl();
|
|
};
|
|
|
|
class ScopedLazyBind final
|
|
: public gl::ScopedGLWrapper<ScopedLazyBind>
|
|
{
|
|
friend struct gl::ScopedGLWrapper<ScopedLazyBind>;
|
|
|
|
const GLenum mTarget;
|
|
const WebGLBuffer* const mBuf;
|
|
|
|
public:
|
|
ScopedLazyBind(gl::GLContext* gl, GLenum target, const WebGLBuffer* buf);
|
|
|
|
private:
|
|
void UnwrapImpl();
|
|
};
|
|
|
|
////
|
|
|
|
bool
|
|
Intersect(int32_t srcSize, int32_t read0, int32_t readSize, int32_t* out_intRead0,
|
|
int32_t* out_intWrite0, int32_t* out_intSize);
|
|
|
|
////
|
|
|
|
void
|
|
ImplCycleCollectionTraverse(nsCycleCollectionTraversalCallback& callback,
|
|
const std::vector<IndexedBufferBinding>& field,
|
|
const char* name, uint32_t flags = 0);
|
|
|
|
void
|
|
ImplCycleCollectionUnlink(std::vector<IndexedBufferBinding>& field);
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif
|