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enblend-enfuse/enblend-enfuse-4.0-libpng-1.5.patch

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--- src/vigra_impex/png.cxx.orig 2012-09-05 19:55:15.000000000 +0200
+++ src/vigra_impex/png.cxx 2012-09-05 19:55:28.000000000 +0200
@@ -65,10 +65,20 @@
#include <png.h>
}
+#define STRINGIFY(m_argument) #m_argument
+
#if PNG_LIBPNG_VER < 10201
#error "please update your libpng to at least 1.2.1"
#endif
+#if PNG_LIBPNG_VER >= 10400
+#define PNG_SET_EXPAND_GRAY_1_2_4_TO_8_NAME png_set_expand_gray_1_2_4_to_8
+#else
+#define PNG_SET_EXPAND_GRAY_1_2_4_TO_8_NAME png_set_gray_1_2_4_to_8
+#endif
+#define PNG_SET_EXPAND_GRAY_1_2_4_TO_8_FUNCTION_NAME STRINGIFY(PNG_SET_EXPAND_GRAY_1_2_4_TO_8_NAME)
+#define PNG_SET_EXPAND_GRAY_1_2_4_TO_8(m_image) PNG_SET_EXPAND_GRAY_1_2_4_TO_8_NAME(m_image)
+
// TODO: per-scanline reading/writing
namespace {
@@ -81,7 +91,7 @@
static void PngError( png_structp png_ptr, png_const_charp error_msg )
{
png_error_message = std::string(error_msg);
- longjmp( png_ptr->jmpbuf, 1 );
+ longjmp( png_jmpbuf(png_ptr), 1 );
}
// called on non-fatal errors
@@ -203,9 +213,9 @@
// check if the file is a png file
const unsigned int sig_size = 8;
png_byte sig[sig_size];
- std::fread( sig, sig_size, 1, file.get() );
+ std::size_t readCount = std::fread( sig, sig_size, 1, file.get() );
const int no_png = png_sig_cmp( sig, 0, sig_size );
- vigra_precondition( !no_png, "given file is not a png file.");
+ vigra_precondition( (readCount == 1) && !no_png, "given file is not a png file.");
// create png read struct with user defined handlers
png = png_create_read_struct( PNG_LIBPNG_VER_STRING, NULL,
@@ -213,7 +223,7 @@
vigra_postcondition( png != 0, "could not create the read struct." );
// create info struct
- if (setjmp(png->jmpbuf)) {
+ if (setjmp(png_jmpbuf(png))) {
png_destroy_read_struct( &png, &info, NULL );
vigra_postcondition( false, png_error_message.insert(0, "error in png_create_info_struct(): ").c_str() );
}
@@ -221,14 +231,14 @@
vigra_postcondition( info != 0, "could not create the info struct." );
// init png i/o
- if (setjmp(png->jmpbuf)) {
+ if (setjmp(png_jmpbuf(png))) {
png_destroy_read_struct( &png, &info, NULL );
vigra_postcondition( false, png_error_message.insert(0, "error in png_init_io(): ").c_str() );
}
png_init_io( png, file.get() );
// specify that the signature was already read
- if (setjmp(png->jmpbuf)) {
+ if (setjmp(png_jmpbuf(png))) {
png_destroy_read_struct( &png, &info, NULL );
vigra_postcondition( false, png_error_message.insert(0, "error in png_set_sig_bytes(): ").c_str() );
}
@@ -244,13 +254,13 @@
void PngDecoderImpl::init()
{
// read all chunks up to the image data
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_read_info(): ").c_str() );
png_read_info( png, info );
// pull over the header fields
int interlace_method, compression_method, filter_method;
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_get_IHDR(): ").c_str() );
png_get_IHDR( png, info, &width, &height, &bit_depth, &color_type,
&interlace_method, &compression_method, &filter_method );
@@ -264,7 +274,7 @@
// transform palette to rgb
if ( color_type == PNG_COLOR_TYPE_PALETTE) {
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_palette_to_rgb(): ").c_str() );
png_set_palette_to_rgb(png);
color_type = PNG_COLOR_TYPE_RGB;
@@ -273,9 +283,9 @@
// expand gray values to at least one byte size
if ( color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8 ) {
- if (setjmp(png->jmpbuf))
- vigra_postcondition( false,png_error_message.insert(0, "error in png_set_gray_1_2_4_to_8(): ").c_str());
- png_set_gray_1_2_4_to_8(png);
+ if (setjmp(png_jmpbuf(png)))
+ vigra_postcondition( false, png_error_message.insert(0, "error in " PNG_SET_EXPAND_GRAY_1_2_4_TO_8_FUNCTION_NAME " (): ").c_str());
+ PNG_SET_EXPAND_GRAY_1_2_4_TO_8(png);
bit_depth = 8;
}
@@ -283,7 +293,7 @@
#if 0
// strip alpha channel
if ( color_type & PNG_COLOR_MASK_ALPHA ) {
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_set_strip_alpha(): ").c_str() );
png_set_strip_alpha(png);
color_type ^= PNG_COLOR_MASK_ALPHA;
@@ -325,9 +335,13 @@
#if (PNG_LIBPNG_VER > 10008) && defined(PNG_READ_iCCP_SUPPORTED)
char * dummyName;
int dummyCompType;
+#if (PNG_LIBPNG_VER < 10500)
char * profilePtr;
+#else
+ png_byte * profilePtr;
+#endif
png_uint_32 profileLen;
- if (info->valid & PNG_INFO_iCCP) {
+ if (png_get_valid( png, info, PNG_INFO_iCCP )) {
png_get_iCCP(png, info, &dummyName, &dummyCompType, &profilePtr, &profileLen) ;
iccProfilePtr = (unsigned char *) profilePtr;
iccProfileLength = profileLen;
@@ -340,7 +354,7 @@
// image gamma
double image_gamma = 0.45455;
if ( png_get_valid( png, info, PNG_INFO_gAMA ) ) {
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_get_gAMA(): ").c_str() );
png_get_gAMA( png, info, &image_gamma );
}
@@ -349,26 +363,26 @@
double screen_gamma = 2.2;
// set gamma correction
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_set_gamma(): ").c_str() );
png_set_gamma( png, screen_gamma, image_gamma );
#endif
// interlace handling, get number of read passes needed
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false,png_error_message.insert(0, "error in png_set_interlace_handling(): ").c_str());
n_interlace_passes = png_set_interlace_handling(png);
// update png library state to reflect any changes that were made
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_read_update_info(): ").c_str() );
png_read_update_info( png, info );
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false,png_error_message.insert(0, "error in png_get_channels(): ").c_str());
n_channels = png_get_channels(png, info);
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false,png_error_message.insert(0, "error in png_get_rowbytes(): ").c_str());
rowsize = png_get_rowbytes(png, info);
@@ -378,9 +392,10 @@
void PngDecoderImpl::nextScanline()
{
- for (int i=0; i < n_interlace_passes; i++) {
- if (setjmp(png->jmpbuf))
- vigra_postcondition( false,png_error_message.insert(0, "error in png_read_row(): ").c_str());
+ if (setjmp(png_jmpbuf(png)))
+ vigra_postcondition( false,png_error_message.insert(0, "error in png_read_row(): ").c_str());
+ for (int i=0; i < n_interlace_passes; i++)
+ {
png_read_row(png, row_data.begin(), NULL);
}
}
@@ -545,7 +560,7 @@
vigra_postcondition( png != 0, "could not create the write struct." );
// create info struct
- if (setjmp(png->jmpbuf)) {
+ if (setjmp(png_jmpbuf(png))) {
png_destroy_write_struct( &png, &info );
vigra_postcondition( false, png_error_message.insert(0, "error in png_info_struct(): ").c_str() );
}
@@ -556,7 +571,7 @@
}
// init png i/o
- if (setjmp(png->jmpbuf)) {
+ if (setjmp(png_jmpbuf(png))) {
png_destroy_write_struct( &png, &info );
vigra_postcondition( false, png_error_message.insert(0, "error in png_init_io(): ").c_str() );
}
@@ -571,7 +586,7 @@
void PngEncoderImpl::finalize()
{
// write the IHDR
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_set_IHDR(): ").c_str() );
png_set_IHDR( png, info, width, height, bit_depth, color_type,
PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT,
@@ -579,7 +594,7 @@
// set resolution
if (x_resolution > 0 && y_resolution > 0) {
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_set_pHYs(): ").c_str() );
png_set_pHYs(png, info, (png_uint_32) (x_resolution / 0.0254 + 0.5),
(png_uint_32) (y_resolution / 0.0254 + 0.5),
@@ -588,7 +603,7 @@
// set offset
if (position.x > 0 && position.y > 0) {
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_set_oFFs(): ").c_str() );
png_set_oFFs(png, info, position.x, position.y, PNG_OFFSET_PIXEL);
}
@@ -596,13 +611,17 @@
#if (PNG_LIBPNG_VER > 10008) && defined(PNG_WRITE_iCCP_SUPPORTED)
// set icc profile
if (iccProfile.size() > 0) {
- png_set_iCCP(png, info, "icc", 0,
- (char *)iccProfile.begin(), iccProfile.size());
+ png_set_iCCP(png, info, (png_charp)("icc"), 0,
+#if (PNG_LIBPNG_VER < 10500)
+ (png_charp)iccProfile.begin(), (png_uint_32)iccProfile.size());
+#else
+ (png_byte*)iccProfile.begin(), (png_uint_32)iccProfile.size());
+#endif
}
#endif
// write the info struct
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_write_info(): ").c_str() );
png_write_info( png, info );
@@ -634,10 +653,10 @@
}
// write the whole image
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_write_image(): ").c_str() );
png_write_image( png, row_pointers.begin() );
- if (setjmp(png->jmpbuf))
+ if (setjmp(png_jmpbuf(png)))
vigra_postcondition( false, png_error_message.insert(0, "error in png_write_end(): ").c_str() );
png_write_end(png, info);
}
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