/* [implicit_jscontext] dpoIData allocateData (in jsval templ, [optional] in uint32_t length); */
NS_IMETHODIMP dpoCContext::AllocateData(const jsval & templ, uint32_t length, JSContext *cx, dpoIData **_retval)
{
cl_int err_code;
nsresult result;
JSObject *tArray;
size_t bytePerElements;
nsCOMPtr<dpoCData> data;
result = ExtractArray( templ, &tArray, cx);
if (NS_FAILED(result)) {
return result;
}
data = new dpoCData( this);
if (data == NULL) {
DEBUG_LOG_STATUS("AllocateData", "Cannot create new dpoCData object");
return NS_ERROR_OUT_OF_MEMORY;
}
if (length == 0) {
DEBUG_LOG_STATUS("AllocateData", "size not provided, assuming template's size");
length = JS_GetTypedArrayLength(tArray);
}
bytePerElements = JS_GetTypedArrayByteLength(tArray) / JS_GetTypedArrayLength(tArray);
DEBUG_LOG_STATUS("AllocateData", "length " << length << " bytePerElements " << bytePerElements);
#ifdef PREALLOCATE_IN_JS_HEAP
JSObject *jsArray;
if (NS_FAILED(CreateAlignedTA(JS_GetTypedArrayType(tArray, cx), length, &jsArray, cx))) {
return NS_ERROR_NOT_AVAILABLE;
}
if (!jsArray) {
DEBUG_LOG_STATUS("AllocateData", "Cannot create typed array");
return NS_ERROR_OUT_OF_MEMORY;
}
cl_mem memObj = CreateBuffer( CL_MEM_USE_HOST_PTR | CL_MEM_READ_WRITE,
JS_GetTypedArrayByteLength(jsArray, cx), GetPointerFromTA(jsArray, cx), &err_code);
#else /* PREALLOCATE_IN_JS_HEAP */
JSObject *jsArray = nullptr;
cl_mem memObj = CreateBuffer(cx, CL_MEM_READ_WRITE, length * bytePerElements, NULL, &err_code);
#endif /* PREALLOCATE_IN_JS_HEAP */
if (err_code != CL_SUCCESS) {
DEBUG_LOG_ERROR("AllocateData", err_code);
return NS_ERROR_NOT_AVAILABLE;
}
result = data->InitCData(cx, cmdQueue, memObj, JS_GetArrayBufferViewType(tArray), length, length * bytePerElements, jsArray);
if (NS_SUCCEEDED(result)) {
data.forget((dpoCData **) _retval);
}
return result;
}
void
AudioBuffer::CopyToChannel(JSContext* aJSContext, const Float32Array& aSource,
uint32_t aChannelNumber, uint32_t aStartInChannel,
ErrorResult& aRv)
{
uint32_t length = aSource.Length();
if (aChannelNumber >= NumberOfChannels() ||
aStartInChannel + length >= mLength) {
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
if (!mSharedChannels && JS_GetTypedArrayLength(mJSChannels[aChannelNumber]) != mLength) {
// The array was probably neutered
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
if (!RestoreJSChannelData(aJSContext)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
PodCopy(JS_GetFloat32ArrayData(mJSChannels[aChannelNumber]) + aStartInChannel,
aSource.Data(), length);
}
void
AudioBuffer::CopyToChannel(JSContext* aJSContext, const Float32Array& aSource,
uint32_t aChannelNumber, uint32_t aStartInChannel,
ErrorResult& aRv)
{
aSource.ComputeLengthAndData();
uint32_t length = aSource.Length();
CheckedInt<uint32_t> end = aStartInChannel;
end += length;
if (aChannelNumber >= NumberOfChannels() ||
!end.isValid() || end.value() > mLength) {
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
if (!mSharedChannels && JS_GetTypedArrayLength(mJSChannels[aChannelNumber]) != mLength) {
// The array was probably neutered
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
if (!RestoreJSChannelData(aJSContext)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
PodMove(JS_GetFloat32ArrayData(mJSChannels[aChannelNumber]) + aStartInChannel,
aSource.Data(), length);
}
NS_IMETHODIMP
nsSpeechTask::SendAudio(JS::Handle<JS::Value> aData, JS::Handle<JS::Value> aLandmarks,
JSContext* aCx)
{
MOZ_ASSERT(XRE_IsParentProcess());
if(NS_WARN_IF(!(mStream))) {
return NS_ERROR_NOT_AVAILABLE;
}
if(NS_WARN_IF(mStream->IsDestroyed())) {
return NS_ERROR_NOT_AVAILABLE;
}
if(NS_WARN_IF(!(mChannels))) {
return NS_ERROR_FAILURE;
}
if(NS_WARN_IF(!(aData.isObject()))) {
return NS_ERROR_INVALID_ARG;
}
if (mIndirectAudio) {
NS_WARNING("Can't call SendAudio from an indirect audio speech service.");
return NS_ERROR_FAILURE;
}
JS::Rooted<JSObject*> darray(aCx, &aData.toObject());
JSAutoCompartment ac(aCx, darray);
JS::Rooted<JSObject*> tsrc(aCx, nullptr);
// Allow either Int16Array or plain JS Array
if (JS_IsInt16Array(darray)) {
tsrc = darray;
} else {
bool isArray;
if (!JS_IsArrayObject(aCx, darray, &isArray)) {
return NS_ERROR_UNEXPECTED;
}
if (isArray) {
tsrc = JS_NewInt16ArrayFromArray(aCx, darray);
}
}
if (!tsrc) {
return NS_ERROR_DOM_TYPE_MISMATCH_ERR;
}
uint32_t dataLen = JS_GetTypedArrayLength(tsrc);
RefPtr<mozilla::SharedBuffer> samples;
{
JS::AutoCheckCannotGC nogc;
samples = makeSamples(JS_GetInt16ArrayData(tsrc, nogc), dataLen);
}
SendAudioImpl(samples, dataLen);
return NS_OK;
}
already_AddRefed<ThreadSharedFloatArrayBufferList>
AudioBuffer::StealJSArrayDataIntoSharedChannels(JSContext* aJSContext)
{
// "1. If any of the AudioBuffer's ArrayBuffer have been detached, abort
// these steps, and return a zero-length channel data buffers to the
// invoker."
for (uint32_t i = 0; i < mJSChannels.Length(); ++i) {
JSObject* channelArray = mJSChannels[i];
if (!channelArray || mLength != JS_GetTypedArrayLength(channelArray)) {
// Either empty buffer or one of the arrays' buffers was detached.
return nullptr;
}
}
// "2. Detach all ArrayBuffers for arrays previously returned by
// getChannelData on this AudioBuffer."
// "3. Retain the underlying data buffers from those ArrayBuffers and return
// references to them to the invoker."
RefPtr<ThreadSharedFloatArrayBufferList> result =
new ThreadSharedFloatArrayBufferList(mJSChannels.Length());
for (uint32_t i = 0; i < mJSChannels.Length(); ++i) {
if (mJSChannels[i]) {
JS::ExposeObjectToActiveJS(mJSChannels[i]);
}
JS::Rooted<JSObject*> arrayBufferView(aJSContext, mJSChannels[i]);
bool isSharedMemory;
JS::Rooted<JSObject*> arrayBuffer(aJSContext,
JS_GetArrayBufferViewBuffer(aJSContext,
arrayBufferView,
&isSharedMemory));
if (arrayBuffer) {
JS::ExposeObjectToActiveJS(arrayBuffer);
}
// The channel data arrays should all have originated in
// RestoreJSChannelData, where they are created unshared.
MOZ_ASSERT(!isSharedMemory);
auto stolenData = arrayBuffer
? static_cast<float*>(JS_StealArrayBufferContents(aJSContext,
arrayBuffer))
: nullptr;
if (stolenData) {
result->SetData(i, stolenData, js_free, stolenData);
} else {
NS_ASSERTION(i == 0, "some channels lost when contents not acquired");
return nullptr;
}
}
for (uint32_t i = 0; i < mJSChannels.Length(); ++i) {
mJSChannels[i] = nullptr;
}
return result.forget();
}
/* [implicit_jscontext] void writeToContext2D (in nsIDOMCanvasRenderingContext2D ctx, in jsval source, in long width, in long height); */
NS_IMETHODIMP dpoCContext::WriteToContext2D(nsIDOMCanvasRenderingContext2D *ctx, const JS::Value & source, PRInt32 width, PRInt32 height, JSContext* cx)
{
#ifdef DIRECT_WRITE
JSObject *srcArray;
nsresult result;
result = ExtractArray(source, &srcArray, cx);
if (NS_FAILED(result)) {
return result;
}
uint32_t size = JS_GetTypedArrayLength(srcArray);
if (size != width*height*4)
return NS_ERROR_INVALID_ARG;
if (JS_IsFloat32Array(srcArray)) {
unsigned char *data = (unsigned char *) nsMemory::Alloc(size);
float *src = JS_GetFloat32ArrayData(srcArray);
for (int i = 0; i < size; i++) {
float val = src[i];
data[i] = val > 0 ? (val < 255 ? ((int) val) : 255) : 0;
}
ctx->PutImageData_explicit(0, 0, width, height, data, size, false, 0, 0, 0, 0);
nsMemory::Free(data);
} else if (JS_IsFloat64Array(srcArray)) {
unsigned char *data = (unsigned char *) nsMemory::Alloc(size);
double *src = JS_GetFloat64ArrayData(srcArray);
for (int i = 0; i < size; i++) {
double val = src[i];
data[i] = val > 0 ? (val < 255 ? ((int) val) : 255) : 0;
}
ctx->PutImageData_explicit(0, 0, width, height, data, size, false, 0, 0, 0, 0);
nsMemory::Free(data);
} else if(JS_IsUint8ClampedArray(srcArray)) {
uint8_t *src = JS_GetUint8ClampedArrayData(srcArray);
ctx->PutImageData_explicit(0, 0, width, height, src, size, false, 0, 0, 0, 0);
} else if(JS_IsUint8Array(srcArray)) {
return NS_ERROR_INVALID_ARG;
} else {
return NS_ERROR_NOT_IMPLEMENTED;
}
return NS_OK;
#else /* DIRECT_WRITE */
return NS_ERROR_NOT_IMPLEMENTED;
#endif /* DIRECT_WRITE */
}
ThreadSharedFloatArrayBufferList*
AudioBuffer::GetThreadSharedChannelsForRate(JSContext* aJSContext)
{
if (!mSharedChannels) {
for (uint32_t i = 0; i < mJSChannels.Length(); ++i) {
if (mLength != JS_GetTypedArrayLength(mJSChannels[i])) {
// Probably one of the arrays was neutered
return nullptr;
}
}
mSharedChannels =
StealJSArrayDataIntoThreadSharedFloatArrayBufferList(aJSContext, mJSChannels);
}
return mSharedChannels;
}
void
AudioBuffer::CopyFromChannel(const Float32Array& aDestination, uint32_t aChannelNumber,
uint32_t aStartInChannel, ErrorResult& aRv)
{
aDestination.ComputeLengthAndData();
uint32_t length = aDestination.Length();
CheckedInt<uint32_t> end = aStartInChannel;
end += length;
if (aChannelNumber >= NumberOfChannels() ||
!end.isValid() || end.value() > Length()) {
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
JS::AutoCheckCannotGC nogc;
JSObject* channelArray = mJSChannels[aChannelNumber];
if (channelArray) {
if (JS_GetTypedArrayLength(channelArray) != Length()) {
// The array's buffer was detached.
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
bool isShared = false;
const float* sourceData =
JS_GetFloat32ArrayData(channelArray, &isShared, nogc);
// The sourceData arrays should all have originated in
// RestoreJSChannelData, where they are created unshared.
MOZ_ASSERT(!isShared);
PodMove(aDestination.Data(), sourceData + aStartInChannel, length);
return;
}
if (!mSharedChannels.IsNull()) {
CopyChannelDataToFloat(mSharedChannels, aChannelNumber, aStartInChannel,
aDestination.Data(), length);
return;
}
PodZero(aDestination.Data(), length);
}
bool
AudioBuffer::SetChannelDataFromArrayBufferContents(JSContext* aJSContext,
uint32_t aChannel,
void* aContents)
{
if (!RestoreJSChannelData(aJSContext)) {
return false;
}
MOZ_ASSERT(aChannel < NumberOfChannels());
JS::RootedObject arrayBuffer(aJSContext, JS_NewArrayBufferWithContents(aJSContext, aContents));
if (!arrayBuffer) {
return false;
}
mJSChannels[aChannel] = JS_NewFloat32ArrayWithBuffer(aJSContext, arrayBuffer,
0, -1);
if (!mJSChannels[aChannel]) {
return false;
}
MOZ_ASSERT(mLength == JS_GetTypedArrayLength(mJSChannels[aChannel]));
return true;
}
NS_IMETHODIMP
nsSpeechTask::SendAudio(JS::Handle<JS::Value> aData, JS::Handle<JS::Value> aLandmarks,
JSContext* aCx)
{
MOZ_ASSERT(XRE_GetProcessType() == GeckoProcessType_Default);
NS_ENSURE_TRUE(mStream, NS_ERROR_NOT_AVAILABLE);
NS_ENSURE_FALSE(mStream->IsDestroyed(), NS_ERROR_NOT_AVAILABLE);
NS_ENSURE_TRUE(mChannels, NS_ERROR_FAILURE);
NS_ENSURE_TRUE(aData.isObject(), NS_ERROR_INVALID_ARG);
if (mIndirectAudio) {
NS_WARNING("Can't call SendAudio from an indirect audio speech service.");
return NS_ERROR_FAILURE;
}
JS::Rooted<JSObject*> darray(aCx, &aData.toObject());
JSAutoCompartment ac(aCx, darray);
JS::Rooted<JSObject*> tsrc(aCx, nullptr);
// Allow either Int16Array or plain JS Array
if (JS_IsInt16Array(darray)) {
tsrc = darray;
} else if (JS_IsArrayObject(aCx, darray)) {
tsrc = JS_NewInt16ArrayFromArray(aCx, darray);
}
if (!tsrc) {
return NS_ERROR_DOM_TYPE_MISMATCH_ERR;
}
SendAudioImpl(JS_GetInt16ArrayData(tsrc),
JS_GetTypedArrayLength(tsrc));
return NS_OK;
}
void
AudioBuffer::CopyToChannel(JSContext* aJSContext, const Float32Array& aSource,
uint32_t aChannelNumber, uint32_t aStartInChannel,
ErrorResult& aRv)
{
aSource.ComputeLengthAndData();
uint32_t length = aSource.Length();
CheckedInt<uint32_t> end = aStartInChannel;
end += length;
if (aChannelNumber >= NumberOfChannels() ||
!end.isValid() || end.value() > mLength) {
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
if (!RestoreJSChannelData(aJSContext)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
JS::AutoCheckCannotGC nogc;
JSObject* channelArray = mJSChannels[aChannelNumber];
if (JS_GetTypedArrayLength(channelArray) != mLength) {
// The array's buffer was detached.
aRv.Throw(NS_ERROR_DOM_INDEX_SIZE_ERR);
return;
}
bool isShared = false;
float* channelData = JS_GetFloat32ArrayData(channelArray, &isShared, nogc);
// The channelData arrays should all have originated in
// RestoreJSChannelData, where they are created unshared.
MOZ_ASSERT(!isShared);
PodMove(channelData + aStartInChannel, aSource.Data(), length);
}
/* [implicit_jscontext] dpoIData mapData (in jsval source); */
NS_IMETHODIMP dpoCContext::MapData(const jsval & source, JSContext *cx, dpoIData **_retval)
{
cl_int err_code;
nsresult result;
JSObject *tArray;
nsCOMPtr<dpoCData> data;
result = ExtractArray( source, &tArray, cx);
if (NS_SUCCEEDED(result)) {
// we have a typed array
data = new dpoCData( this);
if (data == NULL) {
DEBUG_LOG_STATUS("MapData", "Cannot create new dpoCData object");
return NS_ERROR_OUT_OF_MEMORY;
}
// USE_HOST_PTR is save as the CData object will keep the associated typed array alive as long as the
// memory buffer lives
cl_mem_flags flags = CL_MEM_READ_ONLY;
void *tArrayBuffer = NULL;
size_t arrayByteLength = JS_GetTypedArrayByteLength(tArray, cx);
if(arrayByteLength == 0) {
arrayByteLength = 1;
}
else {
tArrayBuffer = GetPointerFromTA(tArray, cx);
flags |= CL_MEM_USE_HOST_PTR;
}
cl_mem memObj = CreateBuffer(flags, arrayByteLength, tArrayBuffer , &err_code);
if (err_code != CL_SUCCESS) {
DEBUG_LOG_ERROR("MapData", err_code);
return NS_ERROR_NOT_AVAILABLE;
}
result = data->InitCData(cx, cmdQueue, memObj, JS_GetTypedArrayType(tArray, cx), JS_GetTypedArrayLength(tArray, cx),
JS_GetTypedArrayByteLength(tArray, cx), tArray);
#ifdef SUPPORT_MAPPING_ARRAYS
} else if (JSVAL_IS_OBJECT(source)) {
// maybe it is a regular array.
//
// WARNING: We map a pointer to the actual array here. All this works on CPU only
// and only of the OpenCL compiler knows what to do! For the current Intel OpenCL SDK
// this works but your milage may vary.
const jsval *elems = UnsafeDenseArrayElements(cx, JSVAL_TO_OBJECT(source));
if (elems != NULL) {
data = new dpoCData( this);
if (data == NULL) {
DEBUG_LOG_STATUS("MapData", "Cannot create new dpoCData object");
return NS_ERROR_OUT_OF_MEMORY;
}
cl_mem memObj = CreateBuffer(CL_MEM_COPY_HOST_PTR | CL_MEM_READ_ONLY, sizeof(double *), &elems, &err_code);
if (err_code != CL_SUCCESS) {
DEBUG_LOG_ERROR("MapData", err_code);
return NS_ERROR_NOT_AVAILABLE;
}
result = data->InitCData(cx, cmdQueue, memObj, 0 /* bogus type */, 1, sizeof(double *), JSVAL_TO_OBJECT(source));
#ifndef DEBUG_OFF
} else {
DEBUG_LOG_STATUS("MapData", "No elements returned!");
#endif /* DEBUG_OFF */
}
#endif /* SUPPORT_MAPPING_ARRAYS */
}
if (NS_SUCCEEDED(result)) {
data.forget((dpoCData **)_retval);
}
return result;
}
JSBool JSB_jsval_typedarray_to_dataptr( JSContext *cx, jsval vp, GLsizei *count, void **data, JSArrayBufferViewType t)
{
JSObject *jsobj;
JSBool ok = JS_ValueToObject( cx, vp, &jsobj );
JSB_PRECONDITION2( ok && jsobj, cx, JS_FALSE, "Error converting value to object");
// WebGL supports TypedArray and sequences for some of its APIs. So when converting a TypedArray, we should
// also check for a possible non-Typed Array JS object, like a JS Array.
if( JS_IsTypedArrayObject( jsobj ) ) {
*count = JS_GetTypedArrayLength(jsobj);
JSArrayBufferViewType type = JS_GetArrayBufferViewType(jsobj);
JSB_PRECONDITION2(t==type, cx, JS_FALSE, "TypedArray type different than expected type");
switch (t) {
case js::ArrayBufferView::TYPE_INT8:
case js::ArrayBufferView::TYPE_UINT8:
*data = JS_GetUint8ArrayData(jsobj);
break;
case js::ArrayBufferView::TYPE_INT16:
case js::ArrayBufferView::TYPE_UINT16:
*data = JS_GetUint16ArrayData(jsobj);
break;
case js::ArrayBufferView::TYPE_INT32:
case js::ArrayBufferView::TYPE_UINT32:
*data = JS_GetUint32ArrayData(jsobj);
break;
case js::ArrayBufferView::TYPE_FLOAT32:
*data = JS_GetFloat32ArrayData(jsobj);
break;
default:
JSB_PRECONDITION2(false, cx, JS_FALSE, "Unsupported typedarray type");
break;
}
} else if( JS_IsArrayObject(cx, jsobj)) {
// Slow... avoid it. Use TypedArray instead, but the spec says that it can receive
// Sequence<> as well.
uint32_t length;
JS_GetArrayLength(cx, jsobj, &length);
for( uint32_t i=0; i<length; i++ ) {
jsval valarg;
JS_GetElement(cx, jsobj, i, &valarg);
switch(t) {
case js::ArrayBufferView::TYPE_INT32:
case js::ArrayBufferView::TYPE_UINT32:
{
uint32_t e = JSVAL_TO_INT(valarg);
((uint32_t*)data)[i] = e;
break;
}
case js::ArrayBufferView::TYPE_FLOAT32:
{
double e = JSVAL_TO_DOUBLE(valarg);
((GLfloat*)data)[i] = (GLfloat)e;
break;
}
default:
JSB_PRECONDITION2(false, cx, JS_FALSE, "Unsupported typedarray type");
break;
}
}
} else
JSB_PRECONDITION2(false, cx, JS_FALSE, "Object shall be a TypedArray or Sequence");
return JS_TRUE;
}
void CBinarySerializerScriptImpl::HandleScriptVal(JS::HandleValue val)
{
JSContext* cx = m_ScriptInterface.GetContext();
JSAutoRequest rq(cx);
switch (JS_TypeOfValue(cx, val))
{
case JSTYPE_VOID:
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_VOID);
break;
}
case JSTYPE_NULL: // This type is never actually returned (it's a JS2 feature)
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_NULL);
break;
}
case JSTYPE_OBJECT:
{
if (val.isNull())
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_NULL);
break;
}
JS::RootedObject obj(cx, &val.toObject());
// If we've already serialized this object, just output a reference to it
u32 tag = GetScriptBackrefTag(obj);
if (tag)
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_BACKREF);
m_Serializer.NumberU32_Unbounded("tag", tag);
break;
}
// Arrays are special cases of Object
if (JS_IsArrayObject(cx, obj))
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_ARRAY);
// TODO: probably should have a more efficient storage format
// Arrays like [1, 2, ] have an 'undefined' at the end which is part of the
// length but seemingly isn't enumerated, so store the length explicitly
uint length = 0;
if (!JS_GetArrayLength(cx, obj, &length))
throw PSERROR_Serialize_ScriptError("JS_GetArrayLength failed");
m_Serializer.NumberU32_Unbounded("array length", length);
}
else if (JS_IsTypedArrayObject(obj))
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_TYPED_ARRAY);
m_Serializer.NumberU8_Unbounded("array type", GetArrayType(JS_GetArrayBufferViewType(obj)));
m_Serializer.NumberU32_Unbounded("byte offset", JS_GetTypedArrayByteOffset(obj));
m_Serializer.NumberU32_Unbounded("length", JS_GetTypedArrayLength(obj));
// Now handle its array buffer
// this may be a backref, since ArrayBuffers can be shared by multiple views
JS::RootedValue bufferVal(cx, JS::ObjectValue(*JS_GetArrayBufferViewBuffer(cx, obj)));
HandleScriptVal(bufferVal);
break;
}
else if (JS_IsArrayBufferObject(obj))
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_ARRAY_BUFFER);
#if BYTE_ORDER != LITTLE_ENDIAN
#error TODO: need to convert JS ArrayBuffer data to little-endian
#endif
u32 length = JS_GetArrayBufferByteLength(obj);
m_Serializer.NumberU32_Unbounded("buffer length", length);
JS::AutoCheckCannotGC nogc;
m_Serializer.RawBytes("buffer data", (const u8*)JS_GetArrayBufferData(obj, nogc), length);
break;
}
else
{
// Find type of object
const JSClass* jsclass = JS_GetClass(obj);
if (!jsclass)
throw PSERROR_Serialize_ScriptError("JS_GetClass failed");
// TODO: Remove this workaround for upstream API breakage when updating SpiderMonkey
// See https://bugzilla.mozilla.org/show_bug.cgi?id=1236373
#define JSCLASS_CACHED_PROTO_WIDTH js::JSCLASS_CACHED_PROTO_WIDTH
JSProtoKey protokey = JSCLASS_CACHED_PROTO_KEY(jsclass);
#undef JSCLASS_CACHED_PROTO_WIDTH
if (protokey == JSProto_Object)
{
// Object class - check for user-defined prototype
JS::RootedObject proto(cx);
JS_GetPrototype(cx, obj, &proto);
if (!proto)
throw PSERROR_Serialize_ScriptError("JS_GetPrototype failed");
if (m_SerializablePrototypes->empty() || !IsSerializablePrototype(proto))
{
// Standard Object prototype
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_OBJECT);
// TODO: maybe we should throw an error for unrecognized non-Object prototypes?
// (requires fixing AI serialization first and excluding component scripts)
}
else
{
// User-defined custom prototype
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_OBJECT_PROTOTYPE);
const std::wstring prototypeName = GetPrototypeName(proto);
m_Serializer.String("proto name", prototypeName, 0, 256);
// Does it have custom Serialize function?
// if so, we serialize the data it returns, rather than the object's properties directly
bool hasCustomSerialize;
if (!JS_HasProperty(cx, obj, "Serialize", &hasCustomSerialize))
throw PSERROR_Serialize_ScriptError("JS_HasProperty failed");
if (hasCustomSerialize)
{
JS::RootedValue serialize(cx);
if (!JS_GetProperty(cx, obj, "Serialize", &serialize))
throw PSERROR_Serialize_ScriptError("JS_GetProperty failed");
// If serialize is null, so don't serialize anything more
if (!serialize.isNull())
{
JS::RootedValue data(cx);
if (!m_ScriptInterface.CallFunction(val, "Serialize", &data))
throw PSERROR_Serialize_ScriptError("Prototype Serialize function failed");
HandleScriptVal(data);
}
break;
}
}
}
else if (protokey == JSProto_Number)
{
// Standard Number object
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_OBJECT_NUMBER);
// Get primitive value
double d;
if (!JS::ToNumber(cx, val, &d))
throw PSERROR_Serialize_ScriptError("JS::ToNumber failed");
m_Serializer.NumberDouble_Unbounded("value", d);
break;
}
else if (protokey == JSProto_String)
{
// Standard String object
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_OBJECT_STRING);
// Get primitive value
JS::RootedString str(cx, JS::ToString(cx, val));
if (!str)
throw PSERROR_Serialize_ScriptError("JS_ValueToString failed");
ScriptString("value", str);
break;
}
else if (protokey == JSProto_Boolean)
{
// Standard Boolean object
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_OBJECT_BOOLEAN);
// Get primitive value
bool b = JS::ToBoolean(val);
m_Serializer.Bool("value", b);
break;
}
// TODO: Follow upstream progresses about a JS::IsMapObject
// https://bugzilla.mozilla.org/show_bug.cgi?id=1285909
else if (protokey == JSProto_Map)
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_OBJECT_MAP);
m_Serializer.NumberU32_Unbounded("map size", JS::MapSize(cx, obj));
JS::RootedValue keyValueIterator(cx);
if (!JS::MapEntries(cx, obj, &keyValueIterator))
throw PSERROR_Serialize_ScriptError("JS::MapEntries failed");
JS::ForOfIterator it(cx);
if (!it.init(keyValueIterator))
throw PSERROR_Serialize_ScriptError("JS::ForOfIterator::init failed");
JS::RootedValue keyValuePair(cx);
bool done;
while (true)
{
if (!it.next(&keyValuePair, &done))
throw PSERROR_Serialize_ScriptError("JS::ForOfIterator::next failed");
if (done)
break;
JS::RootedObject keyValuePairObj(cx, &keyValuePair.toObject());
JS::RootedValue key(cx);
JS::RootedValue value(cx);
ENSURE(JS_GetElement(cx, keyValuePairObj, 0, &key));
ENSURE(JS_GetElement(cx, keyValuePairObj, 1, &value));
HandleScriptVal(key);
HandleScriptVal(value);
}
break;
}
// TODO: Follow upstream progresses about a JS::IsSetObject
// https://bugzilla.mozilla.org/show_bug.cgi?id=1285909
else if (protokey == JSProto_Set)
{
// TODO: When updating SpiderMonkey to a release after 38 use the C++ API for Sets.
// https://bugzilla.mozilla.org/show_bug.cgi?id=1159469
u32 setSize;
m_ScriptInterface.GetProperty(val, "size", setSize);
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_OBJECT_SET);
m_Serializer.NumberU32_Unbounded("set size", setSize);
JS::RootedValue valueIterator(cx);
m_ScriptInterface.CallFunction(val, "values", &valueIterator);
for (u32 i=0; i<setSize; ++i)
{
JS::RootedValue currentIterator(cx);
JS::RootedValue value(cx);
ENSURE(m_ScriptInterface.CallFunction(valueIterator, "next", ¤tIterator));
m_ScriptInterface.GetProperty(currentIterator, "value", &value);
HandleScriptVal(value);
}
break;
}
else
{
// Unrecognized class
LOGERROR("Cannot serialise JS objects with unrecognized class '%s'", jsclass->name);
throw PSERROR_Serialize_InvalidScriptValue();
}
}
// Find all properties (ordered by insertion time)
JS::AutoIdArray ida (cx, JS_Enumerate(cx, obj));
if (!ida)
throw PSERROR_Serialize_ScriptError("JS_Enumerate failed");
m_Serializer.NumberU32_Unbounded("num props", (u32)ida.length());
for (size_t i = 0; i < ida.length(); ++i)
{
JS::RootedId id(cx, ida[i]);
JS::RootedValue idval(cx);
JS::RootedValue propval(cx);
// Forbid getters, which might delete values and mess things up.
JS::Rooted<JSPropertyDescriptor> desc(cx);
if (!JS_GetPropertyDescriptorById(cx, obj, id, &desc))
throw PSERROR_Serialize_ScriptError("JS_GetPropertyDescriptorById failed");
if (desc.hasGetterObject())
throw PSERROR_Serialize_ScriptError("Cannot serialize property getters");
// Get the property name as a string
if (!JS_IdToValue(cx, id, &idval))
throw PSERROR_Serialize_ScriptError("JS_IdToValue failed");
JS::RootedString idstr(cx, JS::ToString(cx, idval));
if (!idstr)
throw PSERROR_Serialize_ScriptError("JS_ValueToString failed");
ScriptString("prop name", idstr);
if (!JS_GetPropertyById(cx, obj, id, &propval))
throw PSERROR_Serialize_ScriptError("JS_GetPropertyById failed");
HandleScriptVal(propval);
}
break;
}
case JSTYPE_FUNCTION:
{
// We can't serialise functions, but we can at least name the offender (hopefully)
std::wstring funcname(L"(unnamed)");
JS::RootedFunction func(cx, JS_ValueToFunction(cx, val));
if (func)
{
JS::RootedString string(cx, JS_GetFunctionId(func));
if (string)
{
if (JS_StringHasLatin1Chars(string))
{
size_t length;
JS::AutoCheckCannotGC nogc;
const JS::Latin1Char* ch = JS_GetLatin1StringCharsAndLength(cx, nogc, string, &length);
if (ch && length > 0)
funcname.assign(ch, ch + length);
}
else
{
size_t length;
JS::AutoCheckCannotGC nogc;
const char16_t* ch = JS_GetTwoByteStringCharsAndLength(cx, nogc, string, &length);
if (ch && length > 0)
funcname.assign(ch, ch + length);
}
}
}
LOGERROR("Cannot serialise JS objects of type 'function': %s", utf8_from_wstring(funcname));
throw PSERROR_Serialize_InvalidScriptValue();
}
case JSTYPE_STRING:
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_STRING);
JS::RootedString stringVal(cx, val.toString());
ScriptString("string", stringVal);
break;
}
case JSTYPE_NUMBER:
{
// To reduce the size of the serialized data, we handle integers and doubles separately.
// We can't check for val.isInt32 and val.isDouble directly, because integer numbers are not guaranteed
// to be represented as integers. A number like 33 could be stored as integer on the computer of one player
// and as double on the other player's computer. That would cause out of sync errors in multiplayer games because
// their binary representation and thus the hash would be different.
double d;
d = val.toNumber();
i32 integer;
if (JS_DoubleIsInt32(d, &integer))
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_INT);
m_Serializer.NumberI32_Unbounded("value", integer);
}
else
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_DOUBLE);
m_Serializer.NumberDouble_Unbounded("value", d);
}
break;
}
case JSTYPE_BOOLEAN:
{
m_Serializer.NumberU8_Unbounded("type", SCRIPT_TYPE_BOOLEAN);
bool b = val.toBoolean();
m_Serializer.NumberU8_Unbounded("value", b ? 1 : 0);
break;
}
default:
{
debug_warn(L"Invalid TypeOfValue");
throw PSERROR_Serialize_InvalidScriptValue();
}
}
}
