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b6cdff1cab
Patched to fix build failure with giflib-5.1 & libpng16 (-current). Signed-off-by: David Spencer <baildon.research@googlemail.com>
109 lines
3.7 KiB
Diff
109 lines
3.7 KiB
Diff
Description: Fix FTBFS with libpng 1.5
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Author: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
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Approved: Ralf Treinen <treinen@debian.org>
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Bug-Debian: #635745
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--- exactimage-0.8.5.orig/codecs/png.cc
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+++ exactimage-0.8.5/codecs/png.cc
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@@ -17,6 +17,7 @@
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#include <stdlib.h>
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#include <png.h>
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+#include <zlib.h>
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#include <iostream>
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@@ -58,7 +59,7 @@ int PNGCodec::readImage (std::istream* s
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png_structp png_ptr;
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png_infop info_ptr;
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png_uint_32 width, height;
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- int bit_depth, color_type, interlace_type;
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+ int bit_depth, color_type, interlace_type, num_trans;
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png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
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NULL /*user_error_ptr*/,
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@@ -71,7 +72,7 @@ int PNGCodec::readImage (std::istream* s
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/* Allocate/initialize the memory for image information. REQUIRED. */
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info_ptr = png_create_info_struct(png_ptr);
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if (info_ptr == NULL) {
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- png_destroy_read_struct(&png_ptr, png_infopp_NULL, png_infopp_NULL);
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+ png_destroy_read_struct(&png_ptr, NULL, NULL);
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return 0;
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}
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@@ -82,7 +83,7 @@ int PNGCodec::readImage (std::istream* s
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if (setjmp(png_jmpbuf(png_ptr))) {
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/* Free all of the memory associated with the png_ptr and info_ptr */
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- png_destroy_read_struct(&png_ptr, &info_ptr, png_infopp_NULL);
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+ png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
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/* If we get here, we had a problem reading the file */
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return 0;
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}
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@@ -99,13 +100,13 @@ int PNGCodec::readImage (std::istream* s
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png_read_info (png_ptr, info_ptr);
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png_get_IHDR (png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
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- &interlace_type, int_p_NULL, int_p_NULL);
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+ &interlace_type, NULL, NULL);
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image.w = width;
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image.h = height;
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image.bps = bit_depth;
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- image.spp = info_ptr->channels;
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-
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+ image.spp = png_get_channels(png_ptr, info_ptr);
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+
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png_uint_32 res_x, res_y;
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res_x = png_get_x_pixels_per_meter(png_ptr, info_ptr);
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res_y = png_get_y_pixels_per_meter(png_ptr, info_ptr);
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@@ -119,11 +120,13 @@ int PNGCodec::readImage (std::istream* s
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* (not useful if you are using png_set_packing). */
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// png_set_packswap(png_ptr);
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+ png_get_tRNS(png_ptr, info_ptr, NULL, &num_trans, NULL);
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+
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/* Expand paletted colors into true RGB triplets */
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if (color_type == PNG_COLOR_TYPE_PALETTE) {
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png_set_palette_to_rgb(png_ptr);
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image.bps = 8;
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- if (info_ptr->num_trans)
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+ if (num_trans)
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image.spp = 4;
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else
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image.spp = 3;
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@@ -196,11 +199,11 @@ int PNGCodec::readImage (std::istream* s
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for (int pass = 0; pass < number_passes; ++pass)
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for (unsigned int y = 0; y < height; ++y) {
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row_pointers[0] = image.getRawData() + y * stride;
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- png_read_rows(png_ptr, row_pointers, png_bytepp_NULL, 1);
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+ png_read_rows(png_ptr, row_pointers, NULL, 1);
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}
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/* clean up after the read, and free any memory allocated - REQUIRED */
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- png_destroy_read_struct(&png_ptr, &info_ptr, png_infopp_NULL);
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+ png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
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/* that's it */
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return true;
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@@ -224,7 +227,7 @@ bool PNGCodec::writeImage (std::ostream*
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/* Allocate/initialize the memory for image information. REQUIRED. */
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info_ptr = png_create_info_struct(png_ptr);
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if (info_ptr == NULL) {
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- png_destroy_write_struct(&png_ptr, png_infopp_NULL);
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+ png_destroy_write_struct(&png_ptr, NULL);
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return false;
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}
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@@ -244,8 +247,10 @@ bool PNGCodec::writeImage (std::ostream*
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else if (quality > Z_BEST_COMPRESSION) quality = Z_BEST_COMPRESSION;
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png_set_compression_level(png_ptr, quality);
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+ /* Need?
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png_info_init (info_ptr);
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-
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+ */
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+
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/* Set up our STL stream output control */
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png_set_write_fn (png_ptr, stream, &stdstream_write_data, &stdstream_flush_data);
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