Merge branch 'dev'

CMakeLists.txt

@@ -15,7 +15,7 @@ if(CMAKE_CXX_COMPILER_ID STREQUAL "MSVC")
 else()
   # GNU compiler options
   set(CMAKE_CXX_FLAGS
-      "${CMAKE_CXX_FLAGS} -Wall -Wextra -O3 -pthread -DLOG_LEVEL=3 -Wno-free-nonheap-object"
+      "${CMAKE_CXX_FLAGS} -Wall -Wextra -O3 -pthread -DLOG_LEVEL=3 -Wno-free-nonheap-object -g"
   )
 endif()
 

HighMap/include/highmap/colormaps.hpp

@@ -13,6 +13,7 @@
  *
  */
 #pragma once
+#include <vector>
 
 namespace hmap
 {

HighMap/include/highmap/heightmap.hpp

@@ -514,6 +514,12 @@ struct HeightMapRGBA
    */
   void set_sto(Vec2<int> new_shape, Vec2<int> new_tiling, float new_overlap);
 
+  /**
+   * @brief Export the RGB heightmap to a 8bit png file.
+   * @param fname File name.
+   */
+  void to_png_8bit(std::string fname);
+
   /**
    * @brief Export the RGB heightmap to a 16bit png file.
    * @param fname File name.

HighMap/include/highmap/io.hpp

@@ -391,6 +391,17 @@ void write_png_rgb_16bit(std::string            fname,
                          std::vector<uint16_t> &img,
                          Vec2<int>              shape);
 
+/**
+ * @brief Export an 8bit RGBA image to a png file.
+ *
+ * @param fname File name.
+ * @param img Image data.
+ * @param shape Image shape.
+ */
+void write_png_rgba_8bit(std::string           fname,
+                         std::vector<uint8_t> &img,
+                         Vec2<int>             shape);
+
 /**
  * @brief Export an 16bit RGBA image to a png file.
  *