apply APNG patch for libpng 1.6.37

[platform/upstream/libpng.git] / pngpriv.h

diff --git a/pngpriv.h b/pngpriv.h
index 973c3ea..57e1bf9 100644 (file)
--- a/pngpriv.h
+++ b/pngpriv.h
@@ -1,7 +1,7 @@
 
 /* pngpriv.h - private declarations for use inside libpng
  *
- * Copyright (c) 2018 Cosmin Truta
+ * Copyright (c) 2018-2019 Cosmin Truta
  * Copyright (c) 1998-2002,2004,2006-2018 Glenn Randers-Pehrson
  * Copyright (c) 1996-1997 Andreas Dilger
  * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
@@ -637,6 +637,10 @@
 #define PNG_HAVE_CHUNK_AFTER_IDAT 0x2000U /* Have another chunk after IDAT */
                    /*             0x4000U (unused) */
 #define PNG_IS_READ_STRUCT        0x8000U /* Else is a write struct */
+#ifdef PNG_APNG_SUPPORTED
+#define PNG_HAVE_acTL            0x10000U
+#define PNG_HAVE_fcTL            0x20000U
+#endif
 
 /* Flags for the transformations the PNG library does on the image data */
 #define PNG_BGR                 0x0001U
@@ -873,6 +877,16 @@
 #define png_tRNS PNG_U32(116,  82,  78,  83)
 #define png_zTXt PNG_U32(122,  84,  88, 116)
 
+#ifdef PNG_APNG_SUPPORTED
+#define png_acTL PNG_U32( 97,  99,  84,  76)
+#define png_fcTL PNG_U32(102,  99,  84,  76)
+#define png_fdAT PNG_U32(102, 100,  65,  84)
+
+/* For png_struct.apng_flags: */
+#define PNG_FIRST_FRAME_HIDDEN       0x0001U
+#define PNG_APNG_APP                 0x0002U
+#endif
+
 /* The following will work on (signed char*) strings, whereas the get_uint_32
  * macro will fail on top-bit-set values because of the sign extension.
  */
@@ -1644,6 +1658,47 @@ PNG_INTERNAL_FUNCTION(void,png_colorspace_sync,(png_const_structrp png_ptr,
     */
 #endif
 
+#ifdef PNG_APNG_SUPPORTED
+PNG_INTERNAL_FUNCTION(void,png_ensure_fcTL_is_valid,(png_structp png_ptr,
+   png_uint_32 width, png_uint_32 height,
+   png_uint_32 x_offset, png_uint_32 y_offset,
+   png_uint_16 delay_num, png_uint_16 delay_den,
+   png_byte dispose_op, png_byte blend_op), PNG_EMPTY);
+
+#ifdef PNG_READ_APNG_SUPPORTED
+PNG_INTERNAL_FUNCTION(void,png_handle_acTL,(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 length),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_handle_fcTL,(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 length),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_handle_fdAT,(png_structp png_ptr, png_infop info_ptr,
+   png_uint_32 length),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_have_info,(png_structp png_ptr, png_infop info_ptr),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_ensure_sequence_number,(png_structp png_ptr,
+   png_uint_32 length),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_reset,(png_structp png_ptr),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_read_reinit,(png_structp png_ptr,
+   png_infop info_ptr),PNG_EMPTY);
+#ifdef PNG_PROGRESSIVE_READ_SUPPORTED
+PNG_INTERNAL_FUNCTION(void,png_progressive_read_reset,(png_structp png_ptr),PNG_EMPTY);
+#endif /* PNG_PROGRESSIVE_READ_SUPPORTED */
+#endif /* PNG_READ_APNG_SUPPORTED */
+
+#ifdef PNG_WRITE_APNG_SUPPORTED
+PNG_INTERNAL_FUNCTION(void,png_write_acTL,(png_structp png_ptr,
+   png_uint_32 num_frames, png_uint_32 num_plays),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_write_fcTL,(png_structp png_ptr,
+   png_uint_32 width, png_uint_32 height,
+   png_uint_32 x_offset, png_uint_32 y_offset,
+   png_uint_16 delay_num, png_uint_16 delay_den,
+   png_byte dispose_op, png_byte blend_op),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_write_fdAT,(png_structp png_ptr,
+   png_const_bytep data, png_size_t length),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_write_reset,(png_structp png_ptr),PNG_EMPTY);
+PNG_INTERNAL_FUNCTION(void,png_write_reinit,(png_structp png_ptr,
+   png_infop info_ptr, png_uint_32 width, png_uint_32 height),PNG_EMPTY);
+#endif /* PNG_WRITE_APNG_SUPPORTED */
+#endif /* PNG_APNG_SUPPORTED */
+
 /* Added at libpng version 1.4.0 */
 #ifdef PNG_COLORSPACE_SUPPORTED
 /* These internal functions are for maintaining the colorspace structure within
@@ -2119,11 +2174,11 @@ PNG_INTERNAL_FUNCTION(png_uint_32, png_check_keyword, (png_structrp png_ptr,
 
 #if PNG_ARM_NEON_IMPLEMENTATION == 1
 PNG_INTERNAL_FUNCTION(void,
-                      png_riffle_palette_rgba,
-                      (png_structrp, png_row_infop),
+                      png_riffle_palette_neon,
+                      (png_structrp),
                       PNG_EMPTY);
 PNG_INTERNAL_FUNCTION(int,
-                      png_do_expand_palette_neon_rgba,
+                      png_do_expand_palette_rgba8_neon,
                       (png_structrp,
                        png_row_infop,
                        png_const_bytep,
@@ -2131,7 +2186,7 @@ PNG_INTERNAL_FUNCTION(int,
                        const png_bytepp),
                       PNG_EMPTY);
 PNG_INTERNAL_FUNCTION(int,
-                      png_do_expand_palette_neon_rgb,
+                      png_do_expand_palette_rgb8_neon,
                       (png_structrp,
                        png_row_infop,
                        png_const_bytep,