Use STB's PNG writer instead of libpng

dressupgeekout · Jul 14, 2022 · 0f86863 · 0f86863
1 parent e06b2e5
commit 0f86863
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Showing 8 changed files with 1,743 additions and 62 deletions.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -29,7 +29,7 @@ endif()
 
 if(${LUNAPURPURA_PNG_SUPPORT})
   message(STATUS "PNG support enabled")
-  find_package(PNG REQUIRED)
+  set(LUNAPURPURA_PNG_SUPPORT_FLAGS "-DLUNAPURPURA_PNG_SUPPORT")
 endif()
 
 include(FindPkgConfig)

diff --git a/README.md b/README.md
@@ -59,9 +59,6 @@ If you turn on the mruby bindings, you need to also define the following:
 - PATH `MRUBY_INCLUDEDIR` -- Location of mruby's header files
 - PATH `MRUBY_LIBDIR` -- Location of mruby's library
 
-If you turn on PNG support (enabled by default), then you must have the
-libraries and development headers for zlib and libpng installed.
-
 
 ### build.sh Usage
 

diff --git a/src/lputil/CMakeLists.txt b/src/lputil/CMakeLists.txt
@@ -5,7 +5,9 @@ list(APPEND lputil_SOURCES
 )
 
 list(APPEND lputil_HEADERS
+  lpstb_image_write.h
   lputil.h
+  stb_image_write.h
 )
 
 # This distribution of getopt(3) and friends is based on NetBSD's

diff --git a/src/lputil/lpstb_image_write.h b/src/lputil/lpstb_image_write.h
@@ -0,0 +1,6 @@
+/*
+ * This file is part of Luna Purpura.
+ */
+
+#define STB_IMAGE_WRITE_IMPLEMENTATION
+#include "stb_image_write.h"