add image/

1 files changed, 43 insertions, 0 deletions

diff --git a/src/image/image.c b/src/image/image.c
new file mode 100644
index 0000000..cf08625
--- /dev/null
+++ b/src/image/image.c
@@ -0,0 +1,43 @@
+#include <lua.h>
+#include <honeysuckle.h>
+#define STB_IMAGE_IMPLEMENTATION
+#include "stb_image.h"
+#include "image.h"
+
+int load_image(lua_State *L)
+{
+	char *filename;
+	lua_Integer requested_channels;
+	hs_parse_args(L, hs_str(filename), hs_int(requested_channels));
+
+	int width, height, channels;
+	unsigned char *data = stbi_load(filename, &width, &height, &channels, requested_channels);
+
+	if (data == NULL) hs_throw_error(L, "failed to load image '%s'", filename);
+	
+	lua_pushlightuserdata(L, data);
+	lua_pushinteger(L, width);
+	lua_pushinteger(L, height);
+	lua_pushinteger(L, channels);
+	return 4;
+}
+
+
+int free_image(lua_State *L)
+{
+	void *data;
+	hs_parse_args(L, hs_light(data));
+	stbi_image_free(data);
+	return 0;
+}
+
+
+void setup_image(lua_State *L, int honey_index)
+{
+	hs_create_table(L,
+		hs_str_cfunc("load", load_image),
+		hs_str_cfunc("destroy", free_image),
+	);
+
+	lua_setfield(L, honey_index, "image");
+}