static JSC::JSValue dataFunctionMatrix(DataFunctionMatrixToCall f, JSC::ExecState* exec, WebGLRenderingContext& context)
{
if (exec->argumentCount() != 3)
return exec->vm().throwException(exec, createNotEnoughArgumentsError(exec));
WebGLUniformLocation* location = toWebGLUniformLocation(exec->uncheckedArgument(0));
if (!location && !exec->uncheckedArgument(0).isUndefinedOrNull())
return throwTypeError(exec);
bool transpose = exec->uncheckedArgument(1).toBoolean(exec);
if (exec->hadException())
return jsUndefined();
RefPtr<Float32Array> webGLArray = toFloat32Array(exec->uncheckedArgument(2));
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->uncheckedArgument(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();
}
static v8::Handle<v8::Value> uniformMatrixHelper(const v8::Arguments& args,
int matrixSize)
{
// Forms:
// * glUniformMatrix2fv(GLint location, GLboolean transpose, Array data);
// * glUniformMatrix2fv(GLint location, GLboolean transpose, Float32Array data);
// * glUniformMatrix3fv(GLint location, GLboolean transpose, Array data);
// * glUniformMatrix3fv(GLint location, GLboolean transpose, Float32Array data);
// * glUniformMatrix4fv(GLint location, GLboolean transpose, Array data);
// * glUniformMatrix4fv(GLint location, GLboolean transpose, Float32Array data);
//
// FIXME: need to change to accept Float32Array as well.
if (args.Length() != 3) {
V8Proxy::setDOMException(SYNTAX_ERR);
return notHandledByInterceptor();
}
WebGLRenderingContext* context = V8WebGLRenderingContext::toNative(args.Holder());
if (args.Length() > 0 && !isUndefinedOrNull(args[0]) && !V8WebGLUniformLocation::HasInstance(args[0])) {
V8Proxy::throwTypeError();
return notHandledByInterceptor();
}
bool ok = false;
WebGLUniformLocation* location = toWebGLUniformLocation(args[0], ok);
bool transpose = args[1]->BooleanValue();
if (V8Float32Array::HasInstance(args[2])) {
Float32Array* array = V8Float32Array::toNative(args[2]->ToObject());
ASSERT(array != NULL);
ExceptionCode ec = 0;
switch (matrixSize) {
case 2: context->uniformMatrix2fv(location, transpose, array, ec); break;
case 3: context->uniformMatrix3fv(location, transpose, array, ec); break;
case 4: context->uniformMatrix4fv(location, transpose, array, ec); break;
default: ASSERT_NOT_REACHED(); break;
}
if (ec)
V8Proxy::setDOMException(ec);
return v8::Undefined();
}
if (args[2].IsEmpty() || !args[2]->IsArray()) {
V8Proxy::throwTypeError();
return notHandledByInterceptor();
}
v8::Handle<v8::Array> array =
v8::Local<v8::Array>::Cast(args[2]);
uint32_t len = array->Length();
float* data = jsArrayToFloatArray(array, len);
if (!data) {
// FIXME: consider different / better exception type.
V8Proxy::setDOMException(SYNTAX_ERR);
return notHandledByInterceptor();
}
ExceptionCode ec = 0;
switch (matrixSize) {
case 2: context->uniformMatrix2fv(location, transpose, data, len, ec); break;
case 3: context->uniformMatrix3fv(location, transpose, data, len, ec); break;
case 4: context->uniformMatrix4fv(location, transpose, data, len, ec); break;
default: ASSERT_NOT_REACHED(); break;
}
fastFree(data);
if (ec)
V8Proxy::setDOMException(ec);
return v8::Undefined();
}
