Import a fix from upstream for libpng 1.5 compatibility.

(Portage version: 2.2.0_alpha24/cvs/Linux x86_64)

3 files changed, 220 insertions, 4 deletions

diff --git a/dev-tex/pdftex/ChangeLog b/dev-tex/pdftex/ChangeLog
index 9333d118fc9d..9c670a4fab50 100644
--- a/dev-tex/pdftex/ChangeLog
+++ b/dev-tex/pdftex/ChangeLog
@@ -1,6 +1,10 @@
 # ChangeLog for dev-tex/pdftex
 # Copyright 1999-2011 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/dev-tex/pdftex/ChangeLog,v 1.29 2011/01/02 16:16:50 aballier Exp $
+# $Header: /var/cvsroot/gentoo-x86/dev-tex/pdftex/ChangeLog,v 1.30 2011/02/16 13:00:10 aballier Exp $
+
+  16 Feb 2011; Alexis Ballier <aballier@gentoo.org> pdftex-1.40.11.ebuild,
+  +files/pdftex-1.40.11-libpng15.patch:
+  Import a fix from upstream for libpng 1.5 compatibility.
 
 *pdftex-1.40.11 (02 Jan 2011)
 
diff --git a/dev-tex/pdftex/files/pdftex-1.40.11-libpng15.patch b/dev-tex/pdftex/files/pdftex-1.40.11-libpng15.patch
new file mode 100644
index 000000000000..1c177c983647
--- /dev/null
+++ b/dev-tex/pdftex/files/pdftex-1.40.11-libpng15.patch
@@ -0,0 +1,211 @@
+Index: source/texk/web2c/pdftexdir/writepng.c
+===================================================================
+--- source/texk/web2c/pdftexdir/writepng.c	(revision 21236)
++++ source/texk/web2c/pdftexdir/writepng.c	(revision 21237)
+@@ -21,47 +21,19 @@
+ #include "ptexlib.h"
+ #include "image.h"
+ 
+-#if PNG_LIBPNG_VER_MINOR > 2
+-
+ /* ToDo:
+- *	use png_get_PLTE() to access num_palette and palette
+- *	use xxx to access transformations
++ *	Check if multiple use of, e.g., png_bit_depth(img) should be
++ *	replaced by
++ *		int bitdepth = png_bit_depth(img);
++ *	and subsequent use of bitdepth
+  */
+-
+ #define png_bit_depth(N)	png_get_bit_depth(png_ptr(N), png_info(N))
+ #define png_color_type(N)	png_get_color_type(png_ptr(N), png_info(N))
+ #define png_height(N)		png_get_image_height(png_ptr(N), png_info(N))
+ #define png_interlace_type(N)	png_get_interlace_type(png_ptr(N), png_info(N))
+-#define png_io_ptr(N)		png_get_io_ptr(png_ptr(N))
+-#define png_num_palette(N)	png_info(N)->num_palette
+-#define png_palette(N)		png_info(N)->palette
+ #define png_rowbytes(N)		png_get_rowbytes(png_ptr(N), png_info(N))
+-#define png_transformations(N)	png_ptr(N)->transformations
+-#define png_valid(N,flag)	png_get_valid(png_ptr(N), png_info(N), flag)
+ #define png_width(N)		png_get_image_width(png_ptr(N), png_info(N))
+ 
+-#define png_ptr_bit_depth(N)	png_get_bit_depth(png_ptr(N), png_info(N))
+-#define png_ptr_color_type(N)	png_get_color_type(png_ptr(N), png_info(N))
+-
+-#else
+-
+-#define png_bit_depth(N)	png_info(N)->bit_depth
+-#define png_color_type(N)	png_info(N)->color_type
+-#define png_height(N)		png_info(N)->height
+-#define png_interlace_type(N)	png_info(N)->interlace_type
+-#define png_io_ptr(N)		png_ptr(N)->io_ptr
+-#define png_num_palette(N)	png_info(N)->num_palette
+-#define png_palette(N)		png_info(N)->palette
+-#define png_rowbytes(N)		png_info(N)->rowbytes
+-#define png_transformations(N)	png_ptr(N)->transformations
+-#define png_valid(N,flag)	png_info(N)->valid & (flag)
+-#define png_width(N)		png_info(N)->width
+-
+-#define png_ptr_bit_depth(N)	png_ptr(N)->bit_depth
+-#define png_ptr_color_type(N)	png_ptr(N)->color_type
+-
+-#endif
+-
+ static int transparent_page_group = -1;
+ 
+ void read_png_info(integer img)
+@@ -84,7 +56,7 @@
+     }
+     /* alpha channel support  */
+     if (fixedpdfminorversion < 4
+-        && png_ptr_color_type(img) | PNG_COLOR_MASK_ALPHA)
++        && png_color_type(img) | PNG_COLOR_MASK_ALPHA)
+         png_set_strip_alpha(png_ptr(img));
+     /* 16bit depth support */
+     if (fixedpdfminorversion < 5)
+@@ -104,7 +76,7 @@
+     /* resolution support */
+     img_width(img) = png_width(img);
+     img_height(img) = png_height(img);
+-    if (png_valid(img, PNG_INFO_pHYs)) {
++    if (png_get_valid(png_ptr(img), png_info(img), PNG_INFO_pHYs)) {
+         img_xres(img) =
+             round(0.0254 *
+                   png_get_x_pixels_per_meter(png_ptr(img), png_info(img)));
+@@ -201,14 +173,18 @@
+     int i, j, k, l;
+     png_bytep row, r, *rows;
+     integer palette_objnum = 0;
++    png_colorp palette;
++    int num_palette;
++
++    png_get_PLTE(png_ptr(img), png_info(img), &palette, &num_palette);
++
+     pdfcreateobj(0, 0);
+     palette_objnum = objptr;
+     if (img_colorspace_ref(img) != 0) {
+         pdf_printf("%i 0 R\n", (int) img_colorspace_ref(img));
+     } else {
+         pdf_printf("[/Indexed /DeviceRGB %i %i 0 R]\n",
+-                   (int) (png_num_palette(img) - 1),
+-                   (int) palette_objnum);
++                   num_palette -1, (int) palette_objnum);
+     }
+     pdfbeginstream();
+     if (png_interlace_type(img) == PNG_INTERLACE_NONE) {
+@@ -230,11 +206,11 @@
+     if (palette_objnum > 0) {
+         pdfbegindict(palette_objnum, 0);
+         pdfbeginstream();
+-        for (i = 0; (unsigned) i < png_num_palette(img); i++) {
++        for (i = 0; (unsigned) i < num_palette; i++) {
+             pdfroom(3);
+-            pdfbuf[pdfptr++] = png_palette(img)[i].red;
+-            pdfbuf[pdfptr++] = png_palette(img)[i].green;
+-            pdfbuf[pdfptr++] = png_palette(img)[i].blue;
++            pdfbuf[pdfptr++] = palette[i].red;
++            pdfbuf[pdfptr++] = palette[i].green;
++            pdfbuf[pdfptr++] = palette[i].blue;
+         }
+         pdfendstream();
+     }
+@@ -461,7 +437,7 @@
+ 
+ static void copy_png(integer img)
+ {
+-    FILE *fp = (FILE *) png_io_ptr(img);
++    FILE *fp = (FILE *) png_get_io_ptr(png_ptr(img));
+     int i, len, type, streamlength = 0;
+     boolean endflag = false;
+     int idat = 0;               /* flag to check continuous IDAT chunks sequence */
+@@ -553,7 +529,12 @@
+     double gamma, checked_gamma;
+     int i;
+     integer palette_objnum = 0;
++    png_colorp palette;
++    int num_palette;
+     last_png_needs_page_group = false;
++
++    png_get_PLTE(png_ptr(img), png_info(img), &palette, &num_palette);
++
+     if (fixedpdfminorversion < 5)
+         fixedimagehicolor = 0;
+ 
+@@ -570,16 +551,12 @@
+             checked_gamma = (fixedgamma / 1000.0) * (1000.0 / fixedimagegamma);
+         }
+     }
+-    /* the switching between |png_info| and |png_ptr| queries has been trial and error.
+-     */
+     if (fixedpdfminorversion > 1
+         && png_interlace_type(img) == PNG_INTERLACE_NONE
+-        && (png_transformations(img) == PNG_TRANSFORM_IDENTITY
+-            || png_transformations(img) == 0x2000)
+         /* gamma */
+-        && !(png_ptr_color_type(img) == PNG_COLOR_TYPE_GRAY_ALPHA ||
+-             png_ptr_color_type(img) == PNG_COLOR_TYPE_RGB_ALPHA)
+-        && (fixedimagehicolor || (png_ptr_bit_depth(img) <= 8))
++        && !(png_color_type(img) == PNG_COLOR_TYPE_GRAY_ALPHA ||
++             png_color_type(img) == PNG_COLOR_TYPE_RGB_ALPHA)
++        && (fixedimagehicolor || (png_bit_depth(img) <= 8))
+         && (checked_gamma <= 1.01 && checked_gamma > 0.99)
+         ) {
+         if (img_colorspace_ref(img) != 0) {
+@@ -590,8 +567,7 @@
+                 pdfcreateobj(0, 0);
+                 palette_objnum = objptr;
+                 pdf_printf("[/Indexed /DeviceRGB %i %i 0 R]\n",
+-                           (int) (png_num_palette(img) - 1),
+-                           (int) palette_objnum);
++                           num_palette - 1, (int) palette_objnum);
+                 break;
+             case PNG_COLOR_TYPE_GRAY:
+                 pdf_puts("/DeviceGray\n");
+@@ -605,11 +581,11 @@
+         if (palette_objnum > 0) {
+             pdfbegindict(palette_objnum, 0);
+             pdfbeginstream();
+-            for (i = 0; i < png_num_palette(img); i++) {
++            for (i = 0; i < num_palette; i++) {
+                 pdfroom(3);
+-                pdfbuf[pdfptr++] = png_palette(img)[i].red;
+-                pdfbuf[pdfptr++] = png_palette(img)[i].green;
+-                pdfbuf[pdfptr++] = png_palette(img)[i].blue;
++                pdfbuf[pdfptr++] = palette[i].red;
++                pdfbuf[pdfptr++] = palette[i].green;
++                pdfbuf[pdfptr++] = palette[i].blue;
+             }
+             pdfendstream();
+         }
+@@ -619,9 +595,6 @@
+             if (fixedimageapplygamma &&
+                 (checked_gamma > 1.01 || checked_gamma < 0.99))
+                 tex_printf("gamma delta=%lf ", checked_gamma);
+-            if (png_transformations(img) != PNG_TRANSFORM_IDENTITY)
+-                tex_printf("transform=%lu",
+-                           (long) png_transformations(img));
+             if ((png_color_type(img) != PNG_COLOR_TYPE_GRAY)
+                 && (png_color_type(img) != PNG_COLOR_TYPE_RGB)
+                 && (png_color_type(img) != PNG_COLOR_TYPE_PALETTE))
+Index: source/texk/web2c/pdftexdir/writeimg.c
+===================================================================
+--- source/texk/web2c/pdftexdir/writeimg.c	(revision 19947)
++++ source/texk/web2c/pdftexdir/writeimg.c	(revision 19948)
+@@ -137,7 +137,7 @@
+ {
+     switch (img_type(img)) {
+     case IMAGE_TYPE_PNG:
+-        return png_info(img)->bit_depth;
++        return png_get_bit_depth(png_ptr(img), png_info(img));
+     case IMAGE_TYPE_JPG:
+         return jpg_ptr(img)->bits_per_component;
+     case IMAGE_TYPE_JBIG2:
+@@ -389,7 +389,7 @@
+         epdf_delete();
+         break;
+     case IMAGE_TYPE_PNG:
+-        xfclose((FILE *) png_ptr(img)->io_ptr, cur_file_name);
++        xfclose((FILE *) png_get_io_ptr(png_ptr(img)), cur_file_name);
+         png_destroy_read_struct(&(png_ptr(img)), &(png_info(img)), NULL);
+         break;
+     case IMAGE_TYPE_JPG:
diff --git a/dev-tex/pdftex/pdftex-1.40.11.ebuild b/dev-tex/pdftex/pdftex-1.40.11.ebuild
index c2cf82c71f4c..4295c9fe4a25 100644
--- a/dev-tex/pdftex/pdftex-1.40.11.ebuild
+++ b/dev-tex/pdftex/pdftex-1.40.11.ebuild
@@ -1,9 +1,9 @@
 # Copyright 1999-2011 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/dev-tex/pdftex/pdftex-1.40.11.ebuild,v 1.1 2011/01/02 16:16:50 aballier Exp $
+# $Header: /var/cvsroot/gentoo-x86/dev-tex/pdftex/pdftex-1.40.11.ebuild,v 1.2 2011/02/16 13:00:10 aballier Exp $
 
 EAPI=2
-inherit libtool toolchain-funcs
+inherit libtool toolchain-funcs eutils
 
 DESCRIPTION="Standalone version of pdftex that can be used to replace TeX Live's"
 HOMEPAGE="http://www.pdftex.org/"
@@ -16,7 +16,7 @@ KEYWORDS="~amd64 ~arm ~hppa ~x86"
 IUSE=""
 
 RDEPEND=">=app-text/poppler-0.12.3-r3[xpdf-headers]
-	media-libs/libpng
+	>=media-libs/libpng-1.4
 	sys-libs/zlib
 	dev-libs/kpathsea
 	app-admin/eselect-pdftex"
@@ -28,6 +28,7 @@ S=${WORKDIR}/${P}/build
 src_prepare() {
 	mkdir "${S}"
 	cd "${WORKDIR}/${P}/src"
+	epatch "${FILESDIR}/${P}-libpng15.patch"
 	elibtoolize
 }