Implementing PNG support for OSD uploads, integrating libspng and miniz

.vscode/c_cpp_properties.json

@@ -40,7 +40,7 @@
         "name": "armhf-musl",
         "includePath": ["${workspaceFolder}/**"],
         "defines": ["__arm__"],
-        "compilerPath": "toolchain/cortex_a7_thumb2-gcc13-musl-4_9/bin/arm-openipc-linux-musleabi-gcc",
+        "compilerPath": "toolchain/cortex_a7_thumb2_hf-gcc13-musl-4_9/bin/arm-openipc-linux-musleabihf-gcc",
         "cStandard": "c11"
       },{
         "name": "mips-musl",

COPYING

@@ -20,38 +20,6 @@ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 ---
 
-The forked tinysvcmdns component from @mikebrady/shairport-sync is included under src/lib.
-A copy of the original source code may be downloaded from git+https://github.com/mikebrady/shairport-sync.
-It is accompanied by the following license and notice:
-
-tinysvcmdns - a tiny MDNS implementation for publishing services
-Copyright (C) 2011 Darell Tan
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions
-are met:
-1. Redistributions of source code must retain the above copyright
-   notice, this list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright
-   notice, this list of conditions and the following disclaimer in the
-   documentation and/or other materials provided with the distribution.
-3. The name of the author may not be used to endorse or promote products
-   derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
----
-
 The following software is included in this product under src/rtsp: @ykst/librtsp.
 A copy of the original source code may be downloaded from git+https://github.com/ykst/librtsp.
 It is accompanied by the following license and notice below:
@@ -79,6 +47,67 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 ---
 
+The following software is included in this product under src/lib: @randy408/libspng.
+A copy of the original source code may be downloaded from git+https://github.com/randy408/libspng.
+It is accompanied by the following license and notice below:
+
+BSD 2-Clause License
+
+Copyright (c) 2018-2023, Randy <[email protected]>
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+* Redistributions of source code must retain the above copyright notice, this
+  list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright notice,
+  this list of conditions and the following disclaimer in the documentation
+  and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+---
+
+The following software is included in this product under src/lib/miniz: @richgel999/miniz.
+A copy of the original source code may be downloaded from git+https://github.com/richgel999/miniz.
+It is accompanied by the following license and notice below:
+
+Copyright 2013-2014 RAD Game Tools and Valve Software
+Copyright 2010-2014 Rich Geldreich and Tenacious Software LLC
+
+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.
+
+---
+
 The following software is included in this product under src/lib/shine: @toots/shine.
 A copy of the original source code may be downloaded from git+https://github.com/toots/shine
 It is accompanied by following license and notice below:
@@ -566,4 +595,36 @@ necessary.  Here is a sample; alter the names:
 
 That's all there is to it!
 
+---
+
+The forked tinysvcmdns component from @mikebrady/shairport-sync is included under src/lib.
+A copy of the original source code may be downloaded from git+https://github.com/mikebrady/shairport-sync.
+It is accompanied by the following license and notice:
+
+tinysvcmdns - a tiny MDNS implementation for publishing services
+Copyright (C) 2011 Darell Tan
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. The name of the author may not be used to endorse or promote products
+   derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
 ---

src/hal/tools.c

@@ -123,6 +123,18 @@ unsigned int millis() {
     return t.tv_sec * 1000 + (t.tv_usec + 500) / 1000;
 }
 
+void reverse(void *arr, size_t width) {
+	char *val = (char*)arr;
+	char tmp;
+	size_t i;
+
+	for (i = 0; i < width / 2; i++) {
+		tmp = val[i];
+		val[i] = val[width - i - 1];
+		val[width - i - 1] = tmp;
+	}
+}
+
 char *split(char **input, char *sep) {
     char *curr = (char *)"";
     while (curr && !curr[0] && *input) curr = strsep(input, sep);

src/hal/tools.h

@@ -29,6 +29,8 @@ char *memstr(char *haystack, char *needle, int size, char needlesize);
 
 unsigned int millis();
 
+void reverse(void *arr, size_t width);
+
 char *split(char **input, char *sep);
 
 void unescape_uri(char *uri);