lodepng: disable support for ancillary / unknown chunks

Author: benoit-pierre

ffi-cdecl/lodepng_decl.c

@@ -16,8 +16,6 @@ cdecl_struct(LodePNGEncoderSettings)
 cdecl_type(LodePNGEncoderSettings)
 cdecl_struct(LodePNGColorMode)
 cdecl_type(LodePNGColorMode)
-cdecl_struct(LodePNGTime)
-cdecl_type(LodePNGTime)
 cdecl_struct(LodePNGInfo)
 cdecl_type(LodePNGInfo)
 cdecl_struct(LodePNGState)

ffi/lodepng_h.lua

@@ -1,3 +1,5 @@
+-- Automatically generated with: ./build/x86_64-pc-linux-gnu/staging/bin/ffi-cdecl -DLODEPNG_NO_COMPILE_ANCILLARY_CHUNKS ffi-cdecl/lodepng_decl.c
+
 local ffi = require("ffi")
 
 ffi.cdef[[
@@ -25,10 +27,6 @@ struct LodePNGDecoderSettings {
   unsigned int ignore_critical;
   unsigned int ignore_end;
   unsigned int color_convert;
-  unsigned int read_text_chunks;
-  unsigned int remember_unknown_chunks;
-  size_t max_text_size;
-  size_t max_icc_size;
 };
 typedef struct LodePNGDecoderSettings LodePNGDecoderSettings;
 enum LodePNGFilterStrategy {
@@ -62,8 +60,6 @@ struct LodePNGEncoderSettings {
   LodePNGFilterStrategy filter_strategy;
   const unsigned char *predefined_filters;
   unsigned int force_palette;
-  unsigned int add_id;
-  unsigned int text_compression;
 };
 typedef struct LodePNGEncoderSettings LodePNGEncoderSettings;
 struct LodePNGColorMode {
@@ -77,84 +73,11 @@ struct LodePNGColorMode {
   unsigned int key_b;
 };
 typedef struct LodePNGColorMode LodePNGColorMode;
-struct LodePNGTime {
-  unsigned int year;
-  unsigned int month;
-  unsigned int day;
-  unsigned int hour;
-  unsigned int minute;
-  unsigned int second;
-};
-typedef struct LodePNGTime LodePNGTime;
 struct LodePNGInfo {
   unsigned int compression_method;
   unsigned int filter_method;
   unsigned int interlace_method;
   LodePNGColorMode color;
-  unsigned int background_defined;
-  unsigned int background_r;
-  unsigned int background_g;
-  unsigned int background_b;
-  size_t text_num;
-  char **text_keys;
-  char **text_strings;
-  size_t itext_num;
-  char **itext_keys;
-  char **itext_langtags;
-  char **itext_transkeys;
-  char **itext_strings;
-  unsigned int exif_defined;
-  unsigned char *exif;
-  unsigned int exif_size;
-  unsigned int time_defined;
-  LodePNGTime time;
-  unsigned int phys_defined;
-  unsigned int phys_x;
-  unsigned int phys_y;
-  unsigned int phys_unit;
-  unsigned int gama_defined;
-  unsigned int gama_gamma;
-  unsigned int chrm_defined;
-  unsigned int chrm_white_x;
-  unsigned int chrm_white_y;
-  unsigned int chrm_red_x;
-  unsigned int chrm_red_y;
-  unsigned int chrm_green_x;
-  unsigned int chrm_green_y;
-  unsigned int chrm_blue_x;
-  unsigned int chrm_blue_y;
-  unsigned int srgb_defined;
-  unsigned int srgb_intent;
-  unsigned int iccp_defined;
-  char *iccp_name;
-  unsigned char *iccp_profile;
-  unsigned int iccp_profile_size;
-  unsigned int cicp_defined;
-  unsigned int cicp_color_primaries;
-  unsigned int cicp_transfer_function;
-  unsigned int cicp_matrix_coefficients;
-  unsigned int cicp_video_full_range_flag;
-  unsigned int mdcv_defined;
-  unsigned int mdcv_red_x;
-  unsigned int mdcv_red_y;
-  unsigned int mdcv_green_x;
-  unsigned int mdcv_green_y;
-  unsigned int mdcv_blue_x;
-  unsigned int mdcv_blue_y;
-  unsigned int mdcv_white_x;
-  unsigned int mdcv_white_y;
-  unsigned int mdcv_max_luminance;
-  unsigned int mdcv_min_luminance;
-  unsigned int clli_defined;
-  unsigned int clli_max_cll;
-  unsigned int clli_max_fall;
-  unsigned int sbit_defined;
-  unsigned int sbit_r;
-  unsigned int sbit_g;
-  unsigned int sbit_b;
-  unsigned int sbit_a;
-  unsigned char *unknown_chunks_data[3];
-  size_t unknown_chunks_size[3];
 };
 typedef struct LodePNGInfo LodePNGInfo;
 struct LodePNGState {

thirdparty/lodepng/overlay/CMakeLists.txt

@@ -4,6 +4,7 @@ project(lodepng LANGUAGES C)
 file(WRITE lodepng.c "#include \"lodepng.cpp\"\n")
 add_library(lodepng)
 target_sources(lodepng PRIVATE lodepng.c)
+target_compile_definitions(lodepng PRIVATE LODEPNG_NO_COMPILE_ANCILLARY_CHUNKS)
 
 install(TARGETS lodepng)
 install(FILES lodepng.h TYPE INCLUDE)