[devel] Added PNG_READ_COMPRESSED_TEXT_SUPPORTED macro.

pngrutil.c

@@ -278,8 +278,7 @@ png_crc_error(png_structp png_ptr)
       return (0);
 }
 
-#if defined(PNG_READ_zTXt_SUPPORTED) || defined(PNG_READ_iTXt_SUPPORTED) || \
-    defined(PNG_READ_iCCP_SUPPORTED)
+#ifdef PNG_READ_COMPRESSED_TEXT_SUPPORTED
 static png_size_t
 png_inflate(png_structp png_ptr, png_bytep data, png_size_t size,
     png_bytep output, png_size_t output_size)
@@ -536,7 +535,7 @@ png_decompress_chunk(png_structp png_ptr, int comp_type,
 
    *newlength = prefix_size;
 }
-#endif
+#endif /* PNG_READ_COMPRESSED_TEXT_SUPPORTED */
 
 /* Read and check the IDHR chunk */
 void /* PRIVATE */

scripts/pnglibconf.dfa

@@ -506,7 +506,7 @@ chunk cHRM
 chunk gAMA
 chunk hIST
 chunk iCCP
-chunk iTXt requires TEXT
+chunk iTXt
 chunk oFFs
 chunk pCAL
 chunk sCAL
@@ -517,7 +517,7 @@ chunk sRGB
 chunk tEXt requires TEXT
 chunk tIME
 chunk tRNS
-chunk zTXt requires TEXT
+chunk zTXt
 
 # This only affects support of the optional PLTE chunk in RGB and RGBA
 # images.  Notice that READ_ANCILLARY_CHUNKS therefore disables part
@@ -546,9 +546,21 @@ option SAVE_INT_32 requires WRITE
 
 # png_save_int_32 is required by the ancillary chunks oFFs and pCAL
 
+option READ_iCCP enables READ_COMPRESSED_TEXT
+option READ_iTXt enables READ_COMPRESSED_TEXT
+option READ_sPLT enables READ_COMPRESSED_TEXT
+option READ_zTXt enables READ_COMPRESSED_TEXT
+option READ_COMPRESSED_TEXT enables READ_TEXT
+
 option WRITE_oFFs enables SAVE_INT_32
 option WRITE_pCAL enables SAVE_INT_32
 
+option WRITE_iCCP enables WRITE_COMPRESSED_TEXT
+option WRITE_iTXt enables WRITE_COMPRESSED_TEXT
+option WRITE_sPLT enables WRITE_COMPRESSED_TEXT
+option WRITE_zTXt enables WRITE_COMPRESSED_TEXT
+option WRITE_COMPRESSED_TEXT enables WRITE_TEXT
+
 # Turn this off to disable png_read_png() and png_write_png() and
 # leave the row_pointers member out of the info structure.
 

scripts/pnglibconf.h.prebuilt

@@ -113,6 +113,7 @@
 #define PNG_READ_USER_CHUNKS_SUPPORTED
 #define PNG_READ_USER_TRANSFORM_SUPPORTED
 #define PNG_READ_zTXt_SUPPORTED
+#define PNG_READ_COMPRESSED_TEXT_SUPPORTED
 #define PNG_SAVE_INT_32_SUPPORTED
 #define PNG_sBIT_SUPPORTED
 #define PNG_sCAL_SUPPORTED
@@ -176,6 +177,7 @@
 #define PNG_WRITE_WEIGHTED_FILTER_SUPPORTED
 #define PNG_WRITE_zTXt_SUPPORTED
 #define PNG_zTXt_SUPPORTED
+#define PNG_WRITE_COMPRESSED_TEXT_SUPPORTED
 /*#undef PNG_ERROR_NUMBERS_SUPPORTED*/
 /*#undef PNG_READ_16_TO_8_ACCURATE_SCALE_SUPPORTED*/
 /* end of options */