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Diffstat (limited to 'thirdparty/libpng/pngwutil.c')
-rw-r--r--thirdparty/libpng/pngwutil.c139
1 files changed, 2 insertions, 137 deletions
diff --git a/thirdparty/libpng/pngwutil.c b/thirdparty/libpng/pngwutil.c
index b4809cda6b..16345e4c0b 100644
--- a/thirdparty/libpng/pngwutil.c
+++ b/thirdparty/libpng/pngwutil.c
@@ -821,11 +821,6 @@ png_write_IHDR(png_structrp png_ptr, png_uint_32 width, png_uint_32 height,
/* Write the chunk */
png_write_complete_chunk(png_ptr, png_IHDR, buf, 13);
-#ifdef PNG_WRITE_APNG_SUPPORTED
- png_ptr->first_frame_width = width;
- png_ptr->first_frame_height = height;
-#endif
-
if ((png_ptr->do_filter) == PNG_NO_FILTERS)
{
if (png_ptr->color_type == PNG_COLOR_TYPE_PALETTE ||
@@ -1007,17 +1002,8 @@ png_compress_IDAT(png_structrp png_ptr, png_const_bytep input,
optimize_cmf(data, png_image_size(png_ptr));
#endif
- if (size > 0)
-#ifdef PNG_WRITE_APNG_SUPPORTED
- {
- if (png_ptr->num_frames_written == 0)
-#endif
- png_write_complete_chunk(png_ptr, png_IDAT, data, size);
-#ifdef PNG_WRITE_APNG_SUPPORTED
- else
- png_write_fdAT(png_ptr, data, size);
- }
-#endif /* PNG_WRITE_APNG_SUPPORTED */
+ if (size > 0)
+ png_write_complete_chunk(png_ptr, png_IDAT, data, size);
png_ptr->mode |= PNG_HAVE_IDAT;
png_ptr->zstream.next_out = data;
@@ -1064,17 +1050,7 @@ png_compress_IDAT(png_structrp png_ptr, png_const_bytep input,
#endif
if (size > 0)
-#ifdef PNG_WRITE_APNG_SUPPORTED
- {
- if (png_ptr->num_frames_written == 0)
-#endif
png_write_complete_chunk(png_ptr, png_IDAT, data, size);
-#ifdef PNG_WRITE_APNG_SUPPORTED
- else
- png_write_fdAT(png_ptr, data, size);
- }
-#endif /* PNG_WRITE_APNG_SUPPORTED */
-
png_ptr->zstream.avail_out = 0;
png_ptr->zstream.next_out = NULL;
png_ptr->mode |= PNG_HAVE_IDAT | PNG_AFTER_IDAT;
@@ -1909,82 +1885,6 @@ png_write_tIME(png_structrp png_ptr, png_const_timep mod_time)
}
#endif
-#ifdef PNG_WRITE_APNG_SUPPORTED
-void /* PRIVATE */
-png_write_acTL(png_structp png_ptr,
- png_uint_32 num_frames, png_uint_32 num_plays)
-{
- png_byte buf[8];
-
- png_debug(1, "in png_write_acTL");
-
- png_ptr->num_frames_to_write = num_frames;
-
- if (png_ptr->apng_flags & PNG_FIRST_FRAME_HIDDEN)
- num_frames--;
-
- png_save_uint_32(buf, num_frames);
- png_save_uint_32(buf + 4, num_plays);
-
- png_write_complete_chunk(png_ptr, png_acTL, buf, (png_size_t)8);
-}
-
-void /* PRIVATE */
-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_byte buf[26];
-
- png_debug(1, "in png_write_fcTL");
-
- if (png_ptr->num_frames_written == 0 && (x_offset != 0 || y_offset != 0))
- png_error(png_ptr, "x and/or y offset for the first frame aren't 0");
- if (png_ptr->num_frames_written == 0 &&
- (width != png_ptr->first_frame_width ||
- height != png_ptr->first_frame_height))
- png_error(png_ptr, "width and/or height in the first frame's fcTL "
- "don't match the ones in IHDR");
-
- /* more error checking */
- png_ensure_fcTL_is_valid(png_ptr, width, height, x_offset, y_offset,
- delay_num, delay_den, dispose_op, blend_op);
-
- png_save_uint_32(buf, png_ptr->next_seq_num);
- png_save_uint_32(buf + 4, width);
- png_save_uint_32(buf + 8, height);
- png_save_uint_32(buf + 12, x_offset);
- png_save_uint_32(buf + 16, y_offset);
- png_save_uint_16(buf + 20, delay_num);
- png_save_uint_16(buf + 22, delay_den);
- buf[24] = dispose_op;
- buf[25] = blend_op;
-
- png_write_complete_chunk(png_ptr, png_fcTL, buf, (png_size_t)26);
-
- png_ptr->next_seq_num++;
-}
-
-void /* PRIVATE */
-png_write_fdAT(png_structp png_ptr,
- png_const_bytep data, png_size_t length)
-{
- png_byte buf[4];
-
- png_write_chunk_header(png_ptr, png_fdAT, (png_uint_32)(4 + length));
-
- png_save_uint_32(buf, png_ptr->next_seq_num);
- png_write_chunk_data(png_ptr, buf, 4);
-
- png_write_chunk_data(png_ptr, data, length);
-
- png_write_chunk_end(png_ptr);
-
- png_ptr->next_seq_num++;
-}
-#endif /* PNG_WRITE_APNG_SUPPORTED */
-
/* Initializes the row writing capability of libpng */
void /* PRIVATE */
png_write_start_row(png_structrp png_ptr)
@@ -2878,39 +2778,4 @@ png_write_filtered_row(png_structrp png_ptr, png_bytep filtered_row,
}
#endif /* WRITE_FLUSH */
}
-
-#ifdef PNG_WRITE_APNG_SUPPORTED
-void /* PRIVATE */
-png_write_reset(png_structp png_ptr)
-{
- png_ptr->row_number = 0;
- png_ptr->pass = 0;
- png_ptr->mode &= ~PNG_HAVE_IDAT;
-}
-
-void /* PRIVATE */
-png_write_reinit(png_structp png_ptr, png_infop info_ptr,
- png_uint_32 width, png_uint_32 height)
-{
- if (png_ptr->num_frames_written == 0 &&
- (width != png_ptr->first_frame_width ||
- height != png_ptr->first_frame_height))
- png_error(png_ptr, "width and/or height in the first frame's fcTL "
- "don't match the ones in IHDR");
- if (width > png_ptr->first_frame_width ||
- height > png_ptr->first_frame_height)
- png_error(png_ptr, "width and/or height for a frame greater than"
- "the ones in IHDR");
-
- png_set_IHDR(png_ptr, info_ptr, width, height,
- info_ptr->bit_depth, info_ptr->color_type,
- info_ptr->interlace_type, info_ptr->compression_type,
- info_ptr->filter_type);
-
- png_ptr->width = width;
- png_ptr->height = height;
- png_ptr->rowbytes = PNG_ROWBYTES(png_ptr->pixel_depth, width);
- png_ptr->usr_width = png_ptr->width;
-}
-#endif /* PNG_WRITE_APNG_SUPPORTED */
#endif /* WRITE */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 01:45:44 +0000