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webkit2gtk: add BE typedarray patch

This commit is contained in:
q66 2020-06-01 00:19:06 +02:00
parent eabf4a763f
commit e4686ba93d
1 changed files with 213 additions and 0 deletions
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213
srcpkgs/webkit2gtk/patches/be-typedarray.patch Normal file
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@ -0,0 +1,213 @@
Source: Jacek Piszczek <jacek.piszczek@runbox.com>
https://tenfourfox.tenderapp.com/discussions/problems/7505-problems-uploading-to-facebook
Updated by @q66.
diff --git Source/JavaScriptCore/runtime/JSGenericTypedArrayView.h Source/JavaScriptCore/runtime/JSGenericTypedArrayView.h
index f08f852..53e2813 100644
--- Source/JavaScriptCore/runtime/JSGenericTypedArrayView.h
+++ Source/JavaScriptCore/runtime/JSGenericTypedArrayView.h
@@ -28,6 +28,7 @@
#include "JSArrayBufferView.h"
#include "ThrowScope.h"
#include "ToNativeFromValue.h"
+#include <wtf/FlipBytes.h>
namespace JSC {
@@ -147,7 +148,18 @@ public:
JSValue getIndexQuickly(unsigned i) const
{
+#if CPU(BIG_ENDIAN)
+ switch (Adaptor::typeValue) {
+ case TypeFloat32:
+ case TypeFloat64:
+ return Adaptor::toJSValue(getIndexQuicklyAsNativeValue(i));
+ default:
+ // typed array views are commonly expected to be little endian views of the underlying data
+ return Adaptor::toJSValue(flipBytes(getIndexQuicklyAsNativeValue(i)));
+ }
+#else
return Adaptor::toJSValue(getIndexQuicklyAsNativeValue(i));
+#endif
}
void setIndexQuicklyToNativeValue(unsigned i, typename Adaptor::Type value)
@@ -164,7 +176,20 @@ public:
void setIndexQuickly(unsigned i, JSValue value)
{
ASSERT(!value.isObject());
+#if CPU(BIG_ENDIAN)
+ switch (Adaptor::typeValue) {
+ case TypeFloat32:
+ case TypeFloat64:
+ setIndexQuicklyToNativeValue(i, toNativeFromValue<Adaptor>(value));
+ break;
+ default:
+ // typed array views are commonly expected to be little endian views of the underlying data
+ setIndexQuicklyToNativeValue(i, flipBytes(toNativeFromValue<Adaptor>(value)));
+ break;
+ }
+#else
setIndexQuicklyToNativeValue(i, toNativeFromValue<Adaptor>(value));
+#endif
}
bool setIndex(JSGlobalObject* globalObject, unsigned i, JSValue jsValue)
@@ -183,13 +208,54 @@ public:
if (i >= m_length)
return false;
+#if CPU(BIG_ENDIAN)
+ switch (Adaptor::typeValue) {
+ case TypeFloat32:
+ case TypeFloat64:
+ setIndexQuicklyToNativeValue(i, value);
+ break;
+ default:
+ // typed array views are commonly expected to be little endian views of the underlying data
+ setIndexQuicklyToNativeValue(i, flipBytes(value));
+ break;
+ }
+#else
setIndexQuicklyToNativeValue(i, value);
+#endif
return true;
}
- static ElementType toAdaptorNativeFromValue(JSGlobalObject* globalObject, JSValue jsValue) { return toNativeFromValue<Adaptor>(globalObject, jsValue); }
+ static ElementType toAdaptorNativeFromValue(JSGlobalObject* globalObject, JSValue jsValue)
+ {
+#if CPU(BIG_ENDIAN)
+ switch (Adaptor::typeValue) {
+ case TypeFloat32:
+ case TypeFloat64:
+ return toNativeFromValue<Adaptor>(globalObject, jsValue);
+ default:
+ // typed array views are commonly expected to be little endian views of the underlying data
+ return flipBytes(toNativeFromValue<Adaptor>(globalObject, jsValue));
+ }
+#else
+ return toNativeFromValue<Adaptor>(globalObject, jsValue);
+#endif
+ }
- static Optional<ElementType> toAdaptorNativeFromValueWithoutCoercion(JSValue jsValue) { return toNativeFromValueWithoutCoercion<Adaptor>(jsValue); }
+ static Optional<ElementType> toAdaptorNativeFromValueWithoutCoercion(JSValue jsValue)
+ {
+#if CPU(BIG_ENDIAN)
+ switch (Adaptor::typeValue) {
+ case TypeFloat32:
+ case TypeFloat64:
+ return toNativeFromValueWithoutCoercion<Adaptor>(jsValue);
+ default:
+ // typed array views are commonly expected to be little endian views of the underlying data
+ return flipBytes(toNativeFromValueWithoutCoercion<Adaptor>(jsValue));
+ }
+#else
+ return toNativeFromValueWithoutCoercion<Adaptor>(jsValue);
+#endif
+ }
void sort()
{
diff --git Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototypeFunctions.h Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototypeFunctions.h
index 5bca5d7..8a7111c 100644
--- Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototypeFunctions.h
+++ Source/JavaScriptCore/runtime/JSGenericTypedArrayViewPrototypeFunctions.h
@@ -209,9 +209,36 @@ EncodedJSValue JSC_HOST_CALL genericTypedArrayViewProtoFuncIncludes(VM& vm, JSGl
scope.assertNoException();
RELEASE_ASSERT(!thisObject->isNeutered());
- if (std::isnan(static_cast<double>(*targetOption))) {
+ double targetOptionLittleEndianAsDouble;
+#if CPU(BIG_ENDIAN)
+ switch (ViewClass::TypedArrayStorageType) {
+ case TypeFloat32:
+ case TypeFloat64:
+ targetOptionLittleEndianAsDouble = static_cast<double>(*targetOption);
+ default:
+ // typed array views are commonly expected to be little endian views of the underlying data
+ targetOptionLittleEndianAsDouble = static_cast<double>(flipBytes(*targetOption));
+ }
+#else
+ targetOptionLittleEndianAsDouble = static_cast<double>(*targetOption);
+#endif
+
+ if (std::isnan(targetOptionLittleEndianAsDouble)) {
for (; index < length; ++index) {
- if (std::isnan(static_cast<double>(array[index])))
+ double arrayElementLittleEndianAsDouble;
+#if CPU(BIG_ENDIAN)
+ switch (ViewClass::TypedArrayStorageType) {
+ case TypeFloat32:
+ case TypeFloat64:
+ arrayElementLittleEndianAsDouble = static_cast<double>(array[index]);
+ default:
+ // typed array views are commonly expected to be little endian views of the underlying data
+ arrayElementLittleEndianAsDouble = static_cast<double>(flipBytes(array[index]));
+ }
+#else
+ arrayElementLittleEndianAsDouble = static_cast<double>(array[index]);
+#endif
+ if (std::isnan(arrayElementLittleEndianAsDouble))
return JSValue::encode(jsBoolean(true));
}
} else {
diff --git Source/WTF/wtf/FlipBytes.h Source/WTF/wtf/FlipBytes.h
index 6cd7126..24708f7 100644
--- Source/WTF/wtf/FlipBytes.h
+++ Source/WTF/wtf/FlipBytes.h
@@ -24,6 +24,7 @@
*/
#pragma once
+#include "Optional.h"
namespace WTF {
@@ -98,6 +99,42 @@ inline T flipBytes(T value)
return T();
}
+template<typename T>
+inline T flipBytes(WTF::Optional<T> value)
+{
+ if (sizeof(*value) == 1)
+ return *value;
+ if (sizeof(*value) == 2) {
+ union {
+ T original;
+ uint16_t word;
+ } u;
+ u.original = *value;
+ u.word = flipBytes(u.word);
+ return u.original;
+ }
+ if (sizeof(*value) == 4) {
+ union {
+ T original;
+ uint32_t word;
+ } u;
+ u.original = *value;
+ u.word = flipBytes(u.word);
+ return u.original;
+ }
+ if (sizeof(*value) == 8) {
+ union {
+ T original;
+ uint64_t word;
+ } u;
+ u.original = *value;
+ u.word = flipBytes(u.word);
+ return u.original;
+ }
+ RELEASE_ASSERT_NOT_REACHED();
+ return T();
+}
+
template<typename T>
inline T flipBytesIfLittleEndian(T value, bool littleEndian)
{