feat: godot-engine-source-4.3-stable

engine/thirdparty/thorvg/src/loaders/svg/tvgSvgUtil.cpp

@@ -0,0 +1,71 @@
+/*
+ * Copyright (c) 2020 - 2024 the ThorVG project. All rights reserved.
+
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <cstring>
+#include "tvgSvgUtil.h"
+
+/************************************************************************/
+/* Internal Class Implementation                                        */
+/************************************************************************/
+
+static uint8_t _hexCharToDec(const char c)
+{
+    if (c >= 'a') return c - 'a' + 10;
+    else if (c >= 'A') return c - 'A' + 10;
+    else return c - '0';
+}
+
+
+/************************************************************************/
+/* External Class Implementation                                        */
+/************************************************************************/
+
+size_t svgUtilURLDecode(const char *src, char** dst)
+{
+    if (!src) return 0;
+
+    auto length = strlen(src);
+    if (length == 0) return 0;
+
+    char* decoded = (char*)malloc(sizeof(char) * length + 1);
+
+    char a, b;
+    int idx =0;
+    while (*src) {
+        if (*src == '%' &&
+            ((a = src[1]) && (b = src[2])) &&
+            (isxdigit(a) && isxdigit(b))) {
+            decoded[idx++] = (_hexCharToDec(a) << 4) + _hexCharToDec(b);
+            src+=3;
+        } else if (*src == '+') {
+            decoded[idx++] = ' ';
+            src++;
+        } else {
+            decoded[idx++] = *src++;
+        }
+    }
+    decoded[idx] = '\0';
+
+    *dst = decoded;
+    return idx + 1;
+}
+