Fixed a few small things.

src/dawntools/texturetool/CMakeLists.txt

@@ -45,6 +45,7 @@ function(tool_texture target)
   set(FILTER_MAG "")
   set(WRAP_X "")
   set(WRAP_Y "")
+  set(SCALE "")
 
   # Parse Args
   foreach(_PAIR IN LISTS ARGN)
@@ -73,6 +74,7 @@ function(tool_texture target)
       --wrapY="${WRAP_Y}"
       --filterMin="${FILTER_MIN}"
       --filterMag="${FILTER_MIN}"
+      --scale="${SCALE}"
     COMMENT "Generating texture ${target} from ${FILE}"
     DEPENDS ${DEPS}
   )

src/dawntools/texturetool/TextureTool.cpp

@@ -16,7 +16,8 @@ std::map<std::string, std::string> TextureTool::getOptionalFlags() {
     { "wrapX", "clamp" },
     { "wrapY", "clamp" },
     { "filterMin", "linear" },
-    { "filterMax", "linear" }
+    { "filterMax", "linear" },
+    { "scale", "" }
   };
 }
 
@@ -40,13 +41,19 @@ int32_t TextureTool::start() {
   }
   in.close();
 
-  // Convert to floating points
+  // Buffer to output
   size_t len = STBI_rgb_alpha * w * h;
   uint8_t *dataImage = (uint8_t*)malloc(sizeof(uint8_t) * len);
-  for(size_t i = 0; i < len; i++) {
-    auto dataIn = imageRaw[i];
-    dataImage[i] = dataIn;
+
+  if(!flags["scale"].empty()) {
+    float_t scale = std::stof(flags["scale"]);
+    stbir_resize_uint8(imageRaw, w, h, 0, dataImage, w * scale, h * scale, 0, STBI_rgb_alpha);
+    w = w * scale;
+    h = h * scale;
+  } else {
+    memcpy(dataImage, imageRaw, len);
   }
+
   stbi_image_free(imageRaw);
 
   std::function<int32_t(std::string)> wrapFromString = [&](std::string wr) {