/* * Copyright (C) 2009 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #if ENABLE(WEBGL) #include "JSWebGLRenderingContext.h" #include "WebKitLoseContext.h" #include "ExceptionCode.h" #include "HTMLCanvasElement.h" #include "HTMLImageElement.h" #include "JSWebKitLoseContext.h" #include "JSHTMLCanvasElement.h" #include "JSHTMLImageElement.h" #include "JSImageData.h" #include "JSOESStandardDerivatives.h" #include "JSOESTextureFloat.h" #include "JSOESVertexArrayObject.h" #include "JSWebGLVertexArrayObjectOES.h" #include "JSWebGLBuffer.h" #include "JSFloat32Array.h" #include "JSWebGLFramebuffer.h" #include "JSInt32Array.h" #include "JSWebGLProgram.h" #include "JSWebGLRenderbuffer.h" #include "JSWebGLShader.h" #include "JSWebGLTexture.h" #include "JSWebGLUniformLocation.h" #include "JSUint8Array.h" #include "JSWebKitCSSMatrix.h" #include "NotImplemented.h" #include "OESStandardDerivatives.h" #include "OESTextureFloat.h" #include "OESVertexArrayObject.h" #include "WebGLVertexArrayObjectOES.h" #include "WebGLBuffer.h" #include "Float32Array.h" #include "WebGLExtension.h" #include "WebGLFramebuffer.h" #include "WebGLGetInfo.h" #include "Int32Array.h" #include "WebGLProgram.h" #include "WebGLRenderingContext.h" #include <runtime/Error.h> #include <runtime/JSArray.h> #include <wtf/FastMalloc.h> #include <wtf/OwnFastMallocPtr.h> #if ENABLE(VIDEO) #include "HTMLVideoElement.h" #include "JSHTMLVideoElement.h" #endif using namespace JSC; namespace WebCore { static JSValue toJS(ExecState* exec, JSDOMGlobalObject* globalObject, const WebGLGetInfo& info) { switch (info.getType()) { case WebGLGetInfo::kTypeBool: return jsBoolean(info.getBool()); case WebGLGetInfo::kTypeBoolArray: { MarkedArgumentBuffer list; const Vector<bool>& value = info.getBoolArray(); for (size_t ii = 0; ii < value.size(); ++ii) list.append(jsBoolean(value[ii])); return constructArray(exec, list); } case WebGLGetInfo::kTypeFloat: return jsNumber(info.getFloat()); case WebGLGetInfo::kTypeInt: return jsNumber(info.getInt()); case WebGLGetInfo::kTypeNull: return jsNull(); case WebGLGetInfo::kTypeString: return jsString(exec, info.getString()); case WebGLGetInfo::kTypeUnsignedInt: return jsNumber(info.getUnsignedInt()); case WebGLGetInfo::kTypeWebGLBuffer: return toJS(exec, globalObject, info.getWebGLBuffer()); case WebGLGetInfo::kTypeWebGLFloatArray: return toJS(exec, globalObject, info.getWebGLFloatArray()); case WebGLGetInfo::kTypeWebGLFramebuffer: return toJS(exec, globalObject, info.getWebGLFramebuffer()); case WebGLGetInfo::kTypeWebGLIntArray: return toJS(exec, globalObject, info.getWebGLIntArray()); // FIXME: implement WebGLObjectArray // case WebGLGetInfo::kTypeWebGLObjectArray: case WebGLGetInfo::kTypeWebGLProgram: return toJS(exec, globalObject, info.getWebGLProgram()); case WebGLGetInfo::kTypeWebGLRenderbuffer: return toJS(exec, globalObject, info.getWebGLRenderbuffer()); case WebGLGetInfo::kTypeWebGLTexture: return toJS(exec, globalObject, info.getWebGLTexture()); case WebGLGetInfo::kTypeWebGLUnsignedByteArray: return toJS(exec, globalObject, info.getWebGLUnsignedByteArray()); case WebGLGetInfo::kTypeWebGLVertexArrayObjectOES: return toJS(exec, globalObject, info.getWebGLVertexArrayObjectOES()); default: notImplemented(); return jsUndefined(); } } enum ObjectType { kBuffer, kRenderbuffer, kTexture, kVertexAttrib }; static JSValue getObjectParameter(JSWebGLRenderingContext* obj, ExecState* exec, ObjectType objectType) { if (exec->argumentCount() != 2) return throwSyntaxError(exec); ExceptionCode ec = 0; WebGLRenderingContext* context = static_cast<WebGLRenderingContext*>(obj->impl()); unsigned target = exec->argument(0).toInt32(exec); if (exec->hadException()) return jsUndefined(); unsigned pname = exec->argument(1).toInt32(exec); if (exec->hadException()) return jsUndefined(); WebGLGetInfo info; switch (objectType) { case kBuffer: info = context->getBufferParameter(target, pname, ec); break; case kRenderbuffer: info = context->getRenderbufferParameter(target, pname, ec); break; case kTexture: info = context->getTexParameter(target, pname, ec); break; case kVertexAttrib: // target => index info = context->getVertexAttrib(target, pname, ec); break; default: notImplemented(); break; } if (ec) { setDOMException(exec, ec); return jsUndefined(); } return toJS(exec, obj->globalObject(), info); } enum WhichProgramCall { kProgramParameter, kUniform }; static JSValue toJS(ExecState* exec, JSDOMGlobalObject* globalObject, WebGLExtension* extension) { if (!extension) return jsNull(); switch (extension->getName()) { case WebGLExtension::WebKitLoseContextName: return toJS(exec, globalObject, static_cast<WebKitLoseContext*>(extension)); case WebGLExtension::OESStandardDerivativesName: return toJS(exec, globalObject, static_cast<OESStandardDerivatives*>(extension)); case WebGLExtension::OESTextureFloatName: return toJS(exec, globalObject, static_cast<OESTextureFloat*>(extension)); case WebGLExtension::OESVertexArrayObjectName: return toJS(exec, globalObject, static_cast<OESVertexArrayObject*>(extension)); } ASSERT_NOT_REACHED(); return jsNull(); } void JSWebGLRenderingContext::markChildren(MarkStack& markStack) { Base::markChildren(markStack); WebGLRenderingContext* context = static_cast<WebGLRenderingContext*>(impl()); for (int i = 0; i < context->getNumberOfExtensions(); ++i) markDOMObjectWrapper(markStack, *Heap::heap(this)->globalData(), context->getExtensionNumber(i)); } JSValue JSWebGLRenderingContext::getAttachedShaders(ExecState* exec) { if (exec->argumentCount() < 1) return throwSyntaxError(exec); ExceptionCode ec = 0; WebGLRenderingContext* context = static_cast<WebGLRenderingContext*>(impl()); if (exec->argumentCount() > 0 && !exec->argument(0).isUndefinedOrNull() && !exec->argument(0).inherits(&JSWebGLProgram::s_info)) return throwTypeError(exec); WebGLProgram* program = toWebGLProgram(exec->argument(0)); if (exec->hadException()) return jsNull(); Vector<WebGLShader*> shaders; bool succeed = context->getAttachedShaders(program, shaders, ec); if (ec) { setDOMException(exec, ec); return jsNull(); } if (!succeed) return jsNull(); MarkedArgumentBuffer list; for (size_t ii = 0; ii < shaders.size(); ++ii) list.append(toJS(exec, globalObject(), shaders[ii])); return constructArray(exec, list); } JSValue JSWebGLRenderingContext::getExtension(ExecState* exec) { if (exec->argumentCount() < 1) return throwSyntaxError(exec); WebGLRenderingContext* context = static_cast<WebGLRenderingContext*>(impl()); const String& name = ustringToString(exec->argument(0).toString(exec)); if (exec->hadException()) return jsUndefined(); WebGLExtension* extension = context->getExtension(name); return toJS(exec, globalObject(), extension); } JSValue JSWebGLRenderingContext::getBufferParameter(ExecState* exec) { return getObjectParameter(this, exec, kBuffer); } JSValue JSWebGLRenderingContext::getFramebufferAttachmentParameter(ExecState* exec) { if (exec->argumentCount() != 3) return throwSyntaxError(exec); ExceptionCode ec = 0; WebGLRenderingContext* context = static_cast<WebGLRenderingContext*>(impl()); unsigned target = exec->argument(0).toInt32(exec); if (exec->hadException()) return jsUndefined(); unsigned attachment = exec->argument(1).toInt32(exec); if (exec->hadException()) return jsUndefined(); unsigned pname = exec->argument(2).toInt32(exec); if (exec->hadException()) return jsUndefined(); WebGLGetInfo info = context->getFramebufferAttachmentParameter(target, attachment, pname, ec); if (ec) { setDOMException(exec, ec); return jsUndefined(); } return toJS(exec, globalObject(), info); } JSValue JSWebGLRenderingContext::getParameter(ExecState* exec) { if (exec->argumentCount() != 1) return throwSyntaxError(exec); ExceptionCode ec = 0; WebGLRenderingContext* context = static_cast<WebGLRenderingContext*>(impl()); unsigned pname = exec->argument(0).toInt32(exec); if (exec->hadException()) return jsUndefined(); WebGLGetInfo info = context->getParameter(pname, ec); if (ec) { setDOMException(exec, ec); return jsUndefined(); } return toJS(exec, globalObject(), info); } JSValue JSWebGLRenderingContext::getProgramParameter(ExecState* exec) { if (exec->argumentCount() != 2) return throwSyntaxError(exec); ExceptionCode ec = 0; WebGLRenderingContext* context = static_cast<WebGLRenderingContext*>(impl()); if (exec->argumentCount() > 0 && !exec->argument(0).isUndefinedOrNull() && !exec->argument(0).inherits(&JSWebGLProgram::s_info)) return throwTypeError(exec); WebGLProgram* program = toWebGLProgram(exec->argument(0)); unsigned pname = exec->argument(1).toInt32(exec); if (exec->hadException()) return jsUndefined(); WebGLGetInfo info = context->getProgramParameter(program, pname, ec); if (ec) { setDOMException(exec, ec); return jsUndefined(); } return toJS(exec, globalObject(), info); } JSValue JSWebGLRenderingContext::getRenderbufferParameter(ExecState* exec) { return getObjectParameter(this, exec, kRenderbuffer); } JSValue JSWebGLRenderingContext::getShaderParameter(ExecState* exec) { if (exec->argumentCount() != 2) return throwSyntaxError(exec); ExceptionCode ec = 0; WebGLRenderingContext* context = static_cast<WebGLRenderingContext*>(impl()); if (exec->argumentCount() > 0 && !exec->argument(0).isUndefinedOrNull() && !exec->argument(0).inherits(&JSWebGLShader::s_info)) return throwTypeError(exec); WebGLShader* shader = toWebGLShader(exec->argument(0)); unsigned pname = exec->argument(1).toInt32(exec); if (exec->hadException()) return jsUndefined(); WebGLGetInfo info = context->getShaderParameter(shader, pname, ec); if (ec) { setDOMException(exec, ec); return jsUndefined(); } return toJS(exec, globalObject(), info); } JSValue JSWebGLRenderingContext::getSupportedExtensions(ExecState* exec) { WebGLRenderingContext* context = static_cast<WebGLRenderingContext*>(impl()); if (context->isContextLost()) return jsNull(); Vector<String> value = context->getSupportedExtensions(); MarkedArgumentBuffer list; for (size_t ii = 0; ii < value.size(); ++ii) list.append(jsString(exec, value[ii])); return constructArray(exec, list); } JSValue JSWebGLRenderingContext::getTexParameter(ExecState* exec) { return getObjectParameter(this, exec, kTexture); } JSValue JSWebGLRenderingContext::getUniform(ExecState* exec) { if (exec->argumentCount() != 2) return throwSyntaxError(exec); ExceptionCode ec = 0; WebGLRenderingContext* context = static_cast<WebGLRenderingContext*>(impl()); if (exec->argumentCount() > 0 && !exec->argument(0).isUndefinedOrNull() && !exec->argument(0).inherits(&JSWebGLProgram::s_info)) return throwTypeError(exec); WebGLProgram* program = toWebGLProgram(exec->argument(0)); if (exec->argumentCount() > 1 && !exec->argument(1).isUndefinedOrNull() && !exec->argument(1).inherits(&JSWebGLUniformLocation::s_info)) return throwTypeError(exec); WebGLUniformLocation* loc = toWebGLUniformLocation(exec->argument(1)); if (exec->hadException()) return jsUndefined(); WebGLGetInfo info = context->getUniform(program, loc, ec); if (ec) { setDOMException(exec, ec); return jsUndefined(); } return toJS(exec, globalObject(), info); } JSValue JSWebGLRenderingContext::getVertexAttrib(ExecState* exec) { return getObjectParameter(this, exec, kVertexAttrib); } template<typename T, size_t inlineCapacity> bool toVector(JSC::ExecState* exec, JSC::JSValue value, Vector<T, inlineCapacity>& vector) { if (!value.isObject()) return false; JSC::JSObject* object = asObject(value); int32_t length = object->get(exec, JSC::Identifier(exec, "length")).toInt32(exec); vector.resize(length); for (int32_t i = 0; i < length; ++i) { JSC::JSValue v = object->get(exec, i); if (exec->hadException()) return false; vector[i] = static_cast<T>(v.toNumber(exec)); } return true; } enum DataFunctionToCall { f_uniform1v, f_uniform2v, f_uniform3v, f_uniform4v, f_vertexAttrib1v, f_vertexAttrib2v, f_vertexAttrib3v, f_vertexAttrib4v }; enum DataFunctionMatrixToCall { f_uniformMatrix2fv, f_uniformMatrix3fv, f_uniformMatrix4fv }; static bool functionForUniform(DataFunctionToCall f) { switch (f) { case f_uniform1v: case f_uniform2v: case f_uniform3v: case f_uniform4v: return true; break; default: break; } return false; } static JSC::JSValue dataFunctionf(DataFunctionToCall f, JSC::ExecState* exec, WebGLRenderingContext* context) { if (exec->argumentCount() != 2) return throwSyntaxError(exec); WebGLUniformLocation* location = 0; long index = -1; if (functionForUniform(f)) { if (exec->argumentCount() > 0 && !exec->argument(0).isUndefinedOrNull() && !exec->argument(0).inherits(&JSWebGLUniformLocation::s_info)) return throwTypeError(exec); location = toWebGLUniformLocation(exec->argument(0)); } else index = exec->argument(0).toInt32(exec); if (exec->hadException()) return jsUndefined(); RefPtr<Float32Array> webGLArray = toFloat32Array(exec->argument(1)); if (exec->hadException()) return jsUndefined(); ExceptionCode ec = 0; if (webGLArray) { switch (f) { case f_uniform1v: context->uniform1fv(location, webGLArray.get(), ec); break; case f_uniform2v: context->uniform2fv(location, webGLArray.get(), ec); break; case f_uniform3v: context->uniform3fv(location, webGLArray.get(), ec); break; case f_uniform4v: context->uniform4fv(location, webGLArray.get(), ec); break; case f_vertexAttrib1v: context->vertexAttrib1fv(index, webGLArray.get()); break; case f_vertexAttrib2v: context->vertexAttrib2fv(index, webGLArray.get()); break; case f_vertexAttrib3v: context->vertexAttrib3fv(index, webGLArray.get()); break; case f_vertexAttrib4v: context->vertexAttrib4fv(index, webGLArray.get()); break; } setDOMException(exec, ec); return jsUndefined(); } Vector<float, 64> array; if (!toVector(exec, exec->argument(1), array)) return throwTypeError(exec); switch (f) { case f_uniform1v: context->uniform1fv(location, array.data(), array.size(), ec); break; case f_uniform2v: context->uniform2fv(location, array.data(), array.size(), ec); break; case f_uniform3v: context->uniform3fv(location, array.data(), array.size(), ec); break; case f_uniform4v: context->uniform4fv(location, array.data(), array.size(), ec); break; case f_vertexAttrib1v: context->vertexAttrib1fv(index, array.data(), array.size()); break; case f_vertexAttrib2v: context->vertexAttrib2fv(index, array.data(), array.size()); break; case f_vertexAttrib3v: context->vertexAttrib3fv(index, array.data(), array.size()); break; case f_vertexAttrib4v: context->vertexAttrib4fv(index, array.data(), array.size()); break; } setDOMException(exec, ec); return jsUndefined(); } static JSC::JSValue dataFunctioni(DataFunctionToCall f, JSC::ExecState* exec, WebGLRenderingContext* context) { if (exec->argumentCount() != 2) return throwSyntaxError(exec); if (exec->argumentCount() > 0 && !exec->argument(0).isUndefinedOrNull() && !exec->argument(0).inherits(&JSWebGLUniformLocation::s_info)) return throwTypeError(exec); WebGLUniformLocation* location = toWebGLUniformLocation(exec->argument(0)); if (exec->hadException()) return jsUndefined(); RefPtr<Int32Array> webGLArray = toInt32Array(exec->argument(1)); if (exec->hadException()) return jsUndefined(); ExceptionCode ec = 0; if (webGLArray) { switch (f) { case f_uniform1v: context->uniform1iv(location, webGLArray.get(), ec); break; case f_uniform2v: context->uniform2iv(location, webGLArray.get(), ec); break; case f_uniform3v: context->uniform3iv(location, webGLArray.get(), ec); break; case f_uniform4v: context->uniform4iv(location, webGLArray.get(), ec); break; default: break; } setDOMException(exec, ec); return jsUndefined(); } Vector<int, 64> array; if (!toVector(exec, exec->argument(1), array)) return throwTypeError(exec); switch (f) { case f_uniform1v: context->uniform1iv(location, array.data(), array.size(), ec); break; case f_uniform2v: context->uniform2iv(location, array.data(), array.size(), ec); break; case f_uniform3v: context->uniform3iv(location, array.data(), array.size(), ec); break; case f_uniform4v: context->uniform4iv(location, array.data(), array.size(), ec); break; default: break; } setDOMException(exec, ec); return jsUndefined(); } static JSC::JSValue dataFunctionMatrix(DataFunctionMatrixToCall f, JSC::ExecState* exec, WebGLRenderingContext* context) { if (exec->argumentCount() != 3) return throwSyntaxError(exec); if (exec->argumentCount() > 0 && !exec->argument(0).isUndefinedOrNull() && !exec->argument(0).inherits(&JSWebGLUniformLocation::s_info)) return throwTypeError(exec); WebGLUniformLocation* location = toWebGLUniformLocation(exec->argument(0)); if (exec->hadException()) return jsUndefined(); bool transpose = exec->argument(1).toBoolean(exec); if (exec->hadException()) return jsUndefined(); RefPtr<Float32Array> webGLArray = toFloat32Array(exec->argument(2)); if (exec->hadException()) return jsUndefined(); ExceptionCode ec = 0; if (webGLArray) { switch (f) { case f_uniformMatrix2fv: context->uniformMatrix2fv(location, transpose, webGLArray.get(), ec); break; case f_uniformMatrix3fv: context->uniformMatrix3fv(location, transpose, webGLArray.get(), ec); break; case f_uniformMatrix4fv: context->uniformMatrix4fv(location, transpose, webGLArray.get(), ec); break; } setDOMException(exec, ec); return jsUndefined(); } Vector<float, 64> array; if (!toVector(exec, exec->argument(2), array)) return throwTypeError(exec); switch (f) { case f_uniformMatrix2fv: context->uniformMatrix2fv(location, transpose, array.data(), array.size(), ec); break; case f_uniformMatrix3fv: context->uniformMatrix3fv(location, transpose, array.data(), array.size(), ec); break; case f_uniformMatrix4fv: context->uniformMatrix4fv(location, transpose, array.data(), array.size(), ec); break; } setDOMException(exec, ec); return jsUndefined(); } JSC::JSValue JSWebGLRenderingContext::uniform1fv(JSC::ExecState* exec) { return dataFunctionf(f_uniform1v, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::uniform1iv(JSC::ExecState* exec) { return dataFunctioni(f_uniform1v, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::uniform2fv(JSC::ExecState* exec) { return dataFunctionf(f_uniform2v, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::uniform2iv(JSC::ExecState* exec) { return dataFunctioni(f_uniform2v, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::uniform3fv(JSC::ExecState* exec) { return dataFunctionf(f_uniform3v, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::uniform3iv(JSC::ExecState* exec) { return dataFunctioni(f_uniform3v, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::uniform4fv(JSC::ExecState* exec) { return dataFunctionf(f_uniform4v, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::uniform4iv(JSC::ExecState* exec) { return dataFunctioni(f_uniform4v, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::uniformMatrix2fv(JSC::ExecState* exec) { return dataFunctionMatrix(f_uniformMatrix2fv, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::uniformMatrix3fv(JSC::ExecState* exec) { return dataFunctionMatrix(f_uniformMatrix3fv, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::uniformMatrix4fv(JSC::ExecState* exec) { return dataFunctionMatrix(f_uniformMatrix4fv, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::vertexAttrib1fv(JSC::ExecState* exec) { return dataFunctionf(f_vertexAttrib1v, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::vertexAttrib2fv(JSC::ExecState* exec) { return dataFunctionf(f_vertexAttrib2v, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::vertexAttrib3fv(JSC::ExecState* exec) { return dataFunctionf(f_vertexAttrib3v, exec, static_cast<WebGLRenderingContext*>(impl())); } JSC::JSValue JSWebGLRenderingContext::vertexAttrib4fv(JSC::ExecState* exec) { return dataFunctionf(f_vertexAttrib4v, exec, static_cast<WebGLRenderingContext*>(impl())); } } // namespace WebCore #endif // ENABLE(WEBGL)