Add stb_image_resize for thumbnail processing

docs/credits_acknowledgements.rst

@@ -46,7 +46,7 @@ The following libraries and components are incorporated into RenderDoc, listed h
 
 * `stb <https://github.com/nothings/stb>`_ - Released to the Public Domain by Sean Barrett.
 
-  Used to read and write various image formats.
+  Used to read, write and resize various image formats.
 
 * `Source Code Pro <https://github.com/adobe-fonts/source-code-pro>`_ - Copyright 2010, 2012 Adobe Systems Incorporated, distributed under the SIL Open Font License 1.1.
 

renderdoc/3rdparty/stb/stb_impl.c

@@ -4,13 +4,21 @@
 #define STBI_ASSERT(x)
 
 #define STB_IMAGE_WRITE_IMPLEMENTATION
+#define STBIW_ASSERT(x)
+
+#define STB_IMAGE_RESIZE_IMPLEMENTATION
+#define STBIR_ASSERT(x)
 
 #define STB_TRUETYPE_IMPLEMENTATION
 
 #pragma warning(disable:4996) // function unsafe (fopen vs fopen_s)
 #pragma warning(disable:4456) // declaration hides previous local declaration
 #pragma warning(disable:4457) // declaration hides function parameter
+#pragma warning(disable:4189) // local variable is initialized but not referenced
+#pragma warning(disable:4244) // <narrowing conversion>, possible loss of data
+#pragma warning(disable:4702) // unreachable code
 
 #include "stb_image.h"
 #include "stb_image_write.h"
+#include "stb_image_resize.h"
 #include "stb_truetype.h"

renderdoc/CMakeLists.txt

@@ -134,6 +134,7 @@ set(sources
     3rdparty/lz4/lz4.h
     3rdparty/stb/stb_image.h
     3rdparty/stb/stb_image_write.h
+    3rdparty/stb/stb_image_resize.h
     3rdparty/stb/stb_impl.c
     3rdparty/stb/stb_truetype.h
     3rdparty/tinyexr/tinyexr.cpp

renderdoc/renderdoc.vcxproj

@@ -225,6 +225,7 @@
     <ClInclude Include="3rdparty\lz4\lz4.h" />
     <ClInclude Include="3rdparty\plthook\plthook.h" />
     <ClInclude Include="3rdparty\stb\stb_image.h" />
+    <ClInclude Include="3rdparty\stb\stb_image_resize.h" />
     <ClInclude Include="3rdparty\stb\stb_image_write.h" />
     <ClInclude Include="3rdparty\stb\stb_truetype.h" />
     <ClInclude Include="3rdparty\tinyexr\tinyexr.h" />

renderdoc/renderdoc.vcxproj.filters

@@ -258,6 +258,9 @@
     <ClInclude Include="3rdparty\plthook\plthook.h">
       <Filter>3rdparty\plthook</Filter>
     </ClInclude>
+    <ClInclude Include="3rdparty\stb\stb_image_resize.h">
+      <Filter>3rdparty\stb</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="maths\camera.cpp">