open source

2020-11-11 16:17:13 +08:00
parent 4d989f3ecb
commit bc4ca748de
2441 changed files with 623057 additions and 2 deletions
@@ -0,0 +1,141 @@
+#ifdef JS_JSC
+#include "JSCArrayBuffer.h"
+#include <JavaScriptCore/JSTypedArray.h>
+#include "JSCProxyTLS.h"
+#include "util/Log.h"
+#include <vector>
+#include "JSCProxyType.h"
+
+namespace laya {
+    
+	//TODO 这里没有考虑多线程的问题，如果js要支持多线程的话，需要修改。
+	struct JsStrBuff {
+		char* _buff;
+		int _len;
+		static std::vector<JsStrBuff> jsstrbuffs;
+		static int curIdx;
+		JsStrBuff() {
+			_buff = NULL;
+			_len = 0;
+		}
+
+		static JsStrBuff& getAData() {
+			if (JsStrBuff::curIdx >= JsStrBuff::jsstrbuffs.size()) {
+				JsStrBuff::jsstrbuffs.push_back(JsStrBuff());
+				JsStrBuff::curIdx++;
+				return JsStrBuff::jsstrbuffs.back();
+			}
+			else {
+				return JsStrBuff::jsstrbuffs[JsStrBuff::curIdx++];
+			}
+		}
+	};
+	std::vector<JsStrBuff> JsStrBuff::jsstrbuffs;
+	int JsStrBuff::curIdx = 0;
+
+	void resetJsStrBuf() {
+		JsStrBuff::curIdx = 0;
+	}
+ 
+    char* JsCharToC(JSStringRef str) {
+        int len = 0;
+        if (str == nullptr)
+            return nullptr;//return "";
+        len = JSStringGetMaximumUTF8CStringSize(str);
+        if (len <= 0)
+            return nullptr;//return "";
+        JsStrBuff& curdata = JsStrBuff::getAData();
+        char*& tocharBuf = curdata._buff;
+        int& tocharBufLen = curdata._len;
+        
+        //tocharBuf= new char[len + 1];
+        if (len > tocharBufLen) {
+            tocharBufLen = len;
+            if (tocharBuf != NULL)
+                delete[] tocharBuf;
+            tocharBuf = new char[len+1];
+        }
+        else {
+            //如果占用空间太大，也要重新分配
+            if (tocharBufLen > 1024 ) {
+                tocharBufLen = len;
+                if (tocharBuf != NULL)
+                    delete[] tocharBuf;
+                tocharBuf = new char[len+1];
+            }
+        }
+        JSStringGetUTF8CString(str,tocharBuf,len);
+        return tocharBuf;
+    }
+    char* JsCharToC(JSValueRef p_vl) {
+        JSContextRef ctx = __TlsData::GetInstance()->GetCurContext();
+        JSStringRef str = JSValueToStringCopy(ctx, p_vl, nullptr);
+        if (str == nullptr)
+            return nullptr;//return "";
+        char* ret = JsCharToC(str);
+        JSStringRelease(str);
+        return ret;
+    }
+}
+
+namespace laya{
+    
+    static void deallocator(void* bytes, void* deallocatorContext)
+    {
+        if (bytes){
+            delete (char*)bytes;
+        }
+    }
+    
+    
+	JSValueRef  createJSAB(char* pData, int len)
+	{
+        JSContextRef ctx = __TlsData::GetInstance()->GetCurContext();
+        char* pBuffer = new char[len];
+        memcpy(pBuffer, pData, len);
+        return JSObjectMakeArrayBufferWithBytesNoCopy(ctx, pBuffer, len, deallocator, pBuffer, NULL);
+	}
+    JSValueRef  createJSABAligned(char* pData, int len)
+    {
+        int asz = (len+3) & 0xfffffffc;
+        JSContextRef ctx = __TlsData::GetInstance()->GetCurContext();
+        char* pBuffer = new char[asz];
+        memcpy(pBuffer, pData, len);
+        for( int i = len; i < asz; i++ )
+        {
+            pBuffer[i] = 0;
+        }
+        return JSObjectMakeArrayBufferWithBytesNoCopy(ctx, pBuffer, asz, deallocator, pBuffer, NULL);
+    }
+	bool extractJSAB(JSValueRef  ab, char*& data, int& len)
+	{
+        JSContextRef ctx = __TlsData::GetInstance()->GetCurContext();
+        JSObjectRef arrayObj = JSValueToObject(ctx,ab,NULL);
+        JSTypedArrayType arrayType = JSValueGetTypedArrayType(ctx, ab, NULL);
+        switch(arrayType)
+        {
+            case kJSTypedArrayTypeNone:
+            {
+                data = NULL;
+                len = 0;
+                return false;
+            }
+            break;
+            case kJSTypedArrayTypeArrayBuffer:
+            {
+                data = (char*)JSObjectGetArrayBufferBytesPtr(ctx, arrayObj, NULL);
+                len = (int)JSObjectGetArrayBufferByteLength(ctx, arrayObj, NULL);
+                return true;
+            }
+            break;
+            default:
+            {
+                data = (char*)JSObjectGetTypedArrayBytesPtr(ctx, arrayObj, NULL) + JSObjectGetTypedArrayByteOffset(ctx, arrayObj, NULL);
+                len = (int)JSObjectGetTypedArrayByteLength(ctx, arrayObj, NULL);
+                return true;
+            }
+            break;
+        }
+	}
+}
+#endif