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commit 303be4553ad5bbe79d50a8708cf1f8f0e4d220af
Author: Darrell Anderson <humanreadable@yahoo.com>
Date: 1334285908 -0500
Fix building with libpng 1.5.
diff --git a/src/gvcore/pngformattype.cpp b/src/gvcore/pngformattype.cpp
index 77bf7b3..8da8089 100644
--- a/src/gvcore/pngformattype.cpp
+++ b/src/gvcore/pngformattype.cpp
@@ -211,7 +211,7 @@ void setup_qt( TQImage& image, png_structp png_ptr, png_infop info_ptr )
if ( color_type == PNG_COLOR_TYPE_GRAY ) {
// Black & White or 8-bit grayscale
- if ( bit_depth == 1 && info_ptr->channels == 1 ) {
+ if ( bit_depth == 1 && png_get_channels(png_ptr, info_ptr) == 1 ) {
png_set_invert_mono( png_ptr );
png_read_update_info( png_ptr, info_ptr );
if (!image.create( width, height, 1, 2, TQImage::BigEndian ))
@@ -246,7 +246,11 @@ void setup_qt( TQImage& image, png_structp png_ptr, png_infop info_ptr )
}
if ( png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ) {
#if PNG_LIBPNG_VER_MAJOR>1 || ( PNG_LIBPNG_VER_MAJOR==1 && PNG_LIBPNG_VER_MINOR>=4 )
- const int g = info_ptr->trans_color.gray;
+ png_bytep trans_alpha;
+ int num_trans;
+ png_color_16p trans_color;
+ png_get_tRNS(png_ptr, info_ptr, &trans_alpha, &num_trans, &trans_color);
+ const int g = trans_color->gray;
#else
const int g = info_ptr->trans_values.gray;
#endif
@@ -256,9 +260,13 @@ void setup_qt( TQImage& image, png_structp png_ptr, png_infop info_ptr )
}
}
}
- } else if ( color_type == PNG_COLOR_TYPE_PALETTE
+ } else {
+ png_colorp palette;
+ int num_palette;
+ png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette);
+ if ( color_type == PNG_COLOR_TYPE_PALETTE
&& png_get_valid(png_ptr, info_ptr, PNG_INFO_PLTE)
- && info_ptr->num_palette <= 256 )
+ && num_palette <= 256 )
{
// 1-bit and 8-bit color
if ( bit_depth != 1 )
@@ -266,20 +274,28 @@ void setup_qt( TQImage& image, png_structp png_ptr, png_infop info_ptr )
png_read_update_info( png_ptr, info_ptr );
png_get_IHDR(png_ptr, info_ptr,
&width, &height, &bit_depth, &color_type, 0, 0, 0);
- if (!image.create(width, height, bit_depth, info_ptr->num_palette,
+ if (!image.create(width, height, bit_depth, num_palette,
TQImage::BigEndian))
return;
int i = 0;
if ( png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS) ) {
+ png_bytep trans_alpha;
+ int num_trans;
+ png_color_16p trans_color;
+ png_get_tRNS(png_ptr, info_ptr, &trans_alpha, &num_trans, &trans_color);
image.setAlphaBuffer( TRUE );
- while ( i < info_ptr->num_trans ) {
+ while ( i < num_trans ) {
image.setColor(i, tqRgba(
- info_ptr->palette[i].red,
- info_ptr->palette[i].green,
- info_ptr->palette[i].blue,
-#if PNG_LIBPNG_VER_MAJOR>1 || ( PNG_LIBPNG_VER_MAJOR==1 && PNG_LIBPNG_VER_MINOR>=4 )
- info_ptr->trans_alpha[i]
-#else
+ palette[i].red,
+ palette[i].green,
+ palette[i].blue,
+#if PNG_LIBPNG_VER_MAJOR>1 || ( PNG_LIBPNG_VER_MAJOR==1 && PNG_LIBPNG_VER_MINOR>=5 )
+ trans_alpha[i]
+#endif
+#if ( PNG_LIBPNG_VER_MAJOR==1 && PNG_LIBPNG_VER_MINOR==4 )
+ info_ptr->trans_alpha[i]
+#endif
+#if ( PNG_LIBPNG_VER_MAJOR==1 && PNG_LIBPNG_VER_MINOR<=3 )
info_ptr->trans[i]
#endif
)
@@ -287,11 +303,11 @@ void setup_qt( TQImage& image, png_structp png_ptr, png_infop info_ptr )
i++;
}
}
- while ( i < info_ptr->num_palette ) {
+ while ( i < num_palette ) {
image.setColor(i, tqRgba(
- info_ptr->palette[i].red,
- info_ptr->palette[i].green,
- info_ptr->palette[i].blue,
+ palette[i].red,
+ palette[i].green,
+ palette[i].blue,
0xff
)
);
@@ -326,12 +342,13 @@ void setup_qt( TQImage& image, png_structp png_ptr, png_infop info_ptr )
}
png_read_update_info(png_ptr, info_ptr);
- }
+ }
// TQt==ARGB==Big(ARGB)==Little(BGRA)
if ( TQImage::systemByteOrder() == TQImage::LittleEndian ) {
png_set_bgr(png_ptr);
}
+ }
}
@@ -389,7 +406,7 @@ int PNGFormat::decode(TQImage& img, TQImageConsumer* cons,
return -1;
}
- if (setjmp((png_ptr)->jmpbuf)) {
+ if (setjmp(png_jmpbuf(png_ptr))) {
png_destroy_read_struct(&png_ptr, &info_ptr, 0);
image = 0;
return -1;
@@ -417,7 +434,7 @@ int PNGFormat::decode(TQImage& img, TQImageConsumer* cons,
if ( !png_ptr ) return 0;
- if (setjmp(png_ptr->jmpbuf)) {
+ if (setjmp(png_jmpbuf(png_ptr))) {
png_destroy_read_struct(&png_ptr, &info_ptr, 0);
image = 0;
state = MovieStart;
@@ -484,7 +501,11 @@ void PNGFormat::end(png_structp png, png_infop info)
consumer->frameDone(TQPoint(offx,offy),r);
consumer->end();
state = FrameStart;
+#if PNG_LIBPNG_VER_MAJOR>1 || ( PNG_LIBPNG_VER_MAJOR==1 && PNG_LIBPNG_VER_MINOR>=5 )
+ unused_data = png_process_data_pause(png, 1);
+#else
unused_data = (int)png->buffer_size; // Since libpng doesn't tell us
+#endif
}
#ifdef PNG_USER_CHUNKS_SUPPORTED
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