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2002-11-25 Alexander Larsson <alexl@redhat.com>
* configure.in: Bump to 2.3.11 2002-10-16 John Harper <jsh@unfactored.org> * art_render_svp.c (art_render_svp_callback, art_render_svp_callback_span, art_render_svp_callback_opacity, art_render_svp_callback_opacity_span): if no runs would normally be emitted, but start is greater than zero, emit a single run covering the entire width of the rendered region 2002-08-18 Havoc Pennington <hp@pobox.com> * autogen.sh: hardcode aclocal-1.4/automake-1.4 so that users with both automake 1.6 and 1.4 installed get the right automake. Means compilation from CVS will now require the latest automake 1.4 release, or manually creating symlinks called "automake-1.4" and "aclocal-1.4" 2002-07-01 Alexander Larsson <alexl@redhat.com> * Release 2.3.10 2002-07-01 Alexander Larsson <alexl@redhat.com> * configure.in (LIBART_VERSION_INFO): Bump to 2.3.10 * art_svp_intersect.c (art_svp_intersect_add_seg): Initialize seg->wind_left to zero, this avoids uninitialized memory read later in art_svp_intersect_horiz_commit. 2002-06-24 Alexander Larsson <alexl@redhat.com> Release 2.3.9. 2002-06-24 Alexander Larsson <alexl@redhat.com> * configure.in: Bump to 2.3.9 2002-06-04 Balamurali Viswanathan <balamurali.viswanathan@wipro.com> * Makefile.am: Added -lm to libart_lgpl_2_la_LIBADD fixes bug 75711 (Jacob's suggestion) 2002-05-08 Raph Levien <raph@pixel.artofcode.com> * art_uta_vpath.c (art_uta_add_line): Fixes very subtle edge case found by Federico Mena Quintero: (96, 96) - (96.220200017562348, 93.034868598919431). Previously, through numerical error, xn was a hair to the left, throwing off the Bresenham iteration. 2002-03-08 Tor Lillqvist <tml@iki.fi> * configure.in: Minor changes for build on Win32. Call AC_LIBTOOL_WIN32_DLL. Set automake conditionals OS_WIN32 and MS_LIB_AVAILABLE. * art_affine.c: Include art_misc.h for M_PI, which not necessarily is in math.h. * Makefile.am: On Win32, build and install import libraries, both for gcc and for MSVC (if available). * libart-zip.in: New file. Used to build runtime and developer package for Win32. 2002-02-06 Laszlo Peter <laca@ireland.sun.com> * configure.in: add AC_FUNC_ALLOCA * art_render_gradient.c: copy alloca hacks from glib/galloca.h 2002-02-02 Alexander Larsson <alla@lysator.liu.se> * art_render.c: Add special case for art_render_composite_8 for two cases that are very common when rendering SVGs with librsvg. I'm sure these can be optimized further, but i'm feeling very slow today. 2002-02-01 Alex Larsson <alexl@redhat.com> * art_render_gradient.c: Add optimized case for depth==8, n_channels == 3 * test_gradient.c: Test case for gradients. Uses gtk+, so not built by default. 2002-01-10 Anders Carlsson <andersca@gnu.org> * Release 2.3.8 2002-01-04 Anders Carlsson <andersca@gnu.org> * configure.in: Bump version to 2.3.8. 2002-01-03 Darin Adler <darin@bentspoon.com> * Makefile.am: Add art_render_mask.[ch]. * art_bpath.h: * art_rect_svp.h: * art_rect_uta.h: * art_render.h: * art_render_gradient.h: * art_render_mask.h: * art_render_svp.h: * art_rgb_svp.h: * art_svp_intersect.h: * art_svp_ops.h: * art_svp_point.h: * art_svp_render_aa.h: * art_svp_vpath.h: * art_svp_vpath_stroke.h: * art_svp_wind.h: * art_uta.h: * art_uta_rect.h: * art_uta_ops.h: * art_uta_svp.h: * art_uta_vpath.h: * art_vpath_bpath.h: * art_vpath_dash.h: * art_vpath_svp.h: Fix includes so that each header includes what it needs. * art_affine.c: * art_alphagamma.c: * art_bpath.c: * art_gray_svp.c: * art_misc.c: * art_pixbuf.c: * art_rect.c: * art_rect_svp.c: * art_rect_uta.c: * art_render.c: * art_render_gradient.c: * art_render_mask.c: * art_render_svp.c: * art_rgb.c: * art_rgb_a_affine.c: * art_rgb_affine.c: * art_rgb_affine_private.c: * art_rgb_bitmap_affine.c: * art_rgb_pixbuf_affine.c: * art_rgb_rgba_affine.c: * art_rgb_svp.c: * art_rgba.c: * art_svp.c: * art_svp_intersect.c: * art_svp_ops.c: * art_svp_point.c: * art_svp_render_aa.c: * art_svp_vpath.c: * art_svp_vpath_stroke.c: * art_svp_wind.c: * art_uta.c: * art_uta_ops.c: * art_uta_rect.c: * art_uta_svp.c: * art_uta_vpath.c: * art_vpath.c: * art_vpath_bpath.c: * art_vpath_dash.c: * art_vpath_svp.c: Fix order of includes so that the corresponding header is included first, to test that each header includes what it needs. 2002-01-02 Darin Adler <darin@bentspoon.com> * art_alphagamma.h: * art_gray_svp.h: * art_pixbuf.h: * art_render.h: * art_rgb.h: * art_rgba.h: Add some missing includes. 2001-12-26 Raph Levien <raph@pixel.artofcode.com> * art_svp_intersect.c: More fixes to intersector. When tops coincide, full ordering test is performed (with breaking), rather than just comparing b from line eq. Also, had a test for x >= backwards in art_svp_intersect_add_point. Thanks to Bruce Q. Hammond for test cases. 2001-11-21 Raph Levien <raph@pixel.artofcode.com> * art_svp_intersect.c (art_svp_intersect_break): Changed break logic systematically so that new breaks are always in order, rather than allowing them to become out of order, then try to fix them up later. It's no doubt possible to come up with cases in which this reduces precision, but it simplifies life nicely, so I did it. * (art_svp_intersect_horiz): Initialize (a, b, c) values of hs to avoid UMR's when they are tested later. * art_svp_ops.c (print_ps_vpath): Changed the coordinate transform so that it's done in the PostScript rather than the C code that outputs the coordinates. This makes it easier to reconstruct the vector path from the debug output. 2001-11-16 Alex Larsson <alexl@redhat.com> * art_rect.c (art_drect_svp_union, art_drect_svp): Don't call art_drect_union() in these functions, since it considers zero-width or zero-height svg segments to be empty. This causes it to think i.e. rectangular svps are empty. 2001-11-07 Raph Levien <raph@pixel.artofcode.com> * art_svp_intersect.c (art_svp_intersect_horiz): Fixed important logic bug, failing to test crossings of neighbors when inserting horizontal lines. Also changed printf to art_dprint. * art_misc.c (art_dprint): Added function for debug printing, so verbose intersector output doesn't have to go through printf. * art_misc.h (ART_USE_NEW_INTERSECTOR): I've turned this on now, as the new intersector certainly seems to be performing better than the old one now. 2001-10-31 Anders Carlsson <andersca@gnu.org> * Release 2.3.7 2001-10-15 Raph Levien <raph@pixel.artofcode.com> * art_svp_intersect.c (art_svp_intersect_horiz): Minor logic fix so that horiz segments successfully cross zero length segments in the active list. (art_svp_intersect_test_cross): Flags indicating whether to do add_point (potentially breaking neighbors) to left and to right. (art_svp_intersect_insert_cross): Provide ART_BREAK_LEFT and ART_BREAK_RIGHT flags to art_svp_intersect_test_cross, depending on direction of search. (art_svp_intersect_advance_cursor): Provide flags (allow both left and right breaking) to test_cross. 2001-10-15 Raph Levien <raph@pixel.artofcode.com> * art_svp_intersect.c (CHEAP_SANITYCHECK): Added an inexpensive sanitycheck to detect multiple insertions of a segment into the horiz list. (art_svp_writer_rewind_add_point): Avoid breaking lines below their bottom point. (art_svp_intersect_test_cross): Handle cases correctly where intersection point matches y0 of left or right segment. These _do_ happen in real world examples. Also, do add_point on newly inserted intersection point. 2001-10-14 Raph Levien <raph@pixel.artofcode.com> * art_svp_intersect.c (art_svp_intersect_add_point): Fixed rather subtle logic bug that misplaced insertion point when seg argument was NULL. 2001-10-11 Raph Levien <raph@pixel.artofcode.com> * art_svp_render_aa.c (art_svp_render_aa_iter_step): Got rid of qsort of steps, and now keep the step list in sorted order. Further, we combine duplicate steps with the same x value, which bounds the size of the step list to x1 - x0, so we don't need to dynamically resize it. Thanks greatly to Bruce Q. Hammond for the original version of this patch. 2001-10-09 Raph Levien <raph@pixel.artofcode.com> * art_svp_intersect.c (art_svp_intersect_test_cross): Breaks bottom part of line segments in "too close" cases. 2001-10-09 Raph Levien <raph@pixel.artofcode.com> * art_svp_intersect.c (art_svp_writer_rewind_add_point): Fixed bbox computation. (art_svp_intersector): Handle degenerate case where input SVP has 0 segments. * art_svp_intersect.h: Moved definition of art_svp_intersector inside #ifdef __cplusplus, so it links properly against C++ 2001-10-09 Raph Levien <raph@pixel.artofcode.com> * art_svp_intersect.c (art_svp_intersect_break): Handle case when break y equals sweep line correctly. Also adds first try at winding number sanitychecker, but that makes too many false positives. 2001-10-07 Raph Levien <raph@pixel.artofcode.com> * art_svp.c (EPSILON): Set to zero if new intersector is in use - we want svp's to be in strict sorted order. * art_svp_intersect.c (art_svp_intersect_test_cross): Explicitly check that top points are equal, and swap immediately if b is out of order. (art_svp_intersect_horiz): Break segments that intersect horizontal lines. Now passes "two squares with offset" test. 2001-10-05 Raph Levien <raph@pixel.artofcode.com> * art_svp_intersect.c: Major changes to accommodate horizontal lines. Intersections of horizontal lines aren't fully processed, but should work a lot better than before. * testart.c: Minor tweaks. testpat now frees memory so it can be run under memprof to detect leaks. 2001-10-03 Raph Levien <raph@pixel.artofcode.com> * art_svp_intersect.c (art_svp_intersect_advance_cursor): Made test_cross for inserted segments common between intersection processing and cursor advance, and also took care of a case that hadn't been handled before. Also added invariant sanitychecker for debugging purposes. 2001-10-02 Raph Levien <raph@pixel.artofcode.com> * art_svp_ops.c: ART_USE_NEW_INTERSECTOR variants of svp ops changed to do shallow free of merged svp. 2001-10-01 Raph Levien <raph@acm.org> * art_svp_intersect.c: * art_svp_intersect.h: * Makefile.am: * art_misc.h: * art_svp_wind.h: First commit of new intersector code. It is turned off by default, but can be enabled by #defining ART_USE_NEW_INTERSECTOR in art_misc.h. * art_svp_ops.c: Make svp ops use new intersector if enabled. * art_svp_vpath_stroke.c: Make vpath stroking use new intersector if enabled. * testart.c: New test case for intersector. Wed Sep 26 03:48:13 2001 George Lebl <jirka@5z.com> * Release 2.3.6 Wed Sep 26 03:11:40 2001 George Lebl <jirka@5z.com> * gen_art_config.c: Fix 64bit issues, cast sizeof return when using %d to print it. 2001-09-13 Havoc Pennington <hp@redhat.com> * Makefile.am: rename library to libart_lgpl_2 * libart-2.0.pc.in (Cflags): move includes * libart-config.in: move includes * Makefile.am: delete libartConf.sh, rename libart-config (EXTRA_DIST): don't install m4 files (libart_lgplincdir): move headers 2001-08-03 Michael Meeks <michael@ximian.com> * Version 2.3.5 for the API freeze. 2001-07-12 Darin Adler <darin@bentspoon.com> * art_affine.c: (art_affine_expansion): Fix handling of negative numbers. We ran into this bug a while back when figuring out why librsvg couldn't handle certain svg files. 2001-07-12 Darin Adler <darin@bentspoon.com> * art_misc.h: Change art_expand macro so it's a single statement, using the do while (0) trick, which gets rid of some warnings. * art_pixbuf.c: Add a missing include. * art_vpath_svp.c: (art_vpath_from_svp): Initialize a variable to avoid a compiler warning. * gen_art_config.c: Add a missing include. 2001-03-24 Martin Baulig <baulig@suse.de> Applied the patch from Alexander Larsson which was sitting in gnome-libs/patches/libart.diff since February. [FIXME: Alex, can you please provide a ChangeLog?]) * art_rgb_a_affine.[ch]: New files. 2001-01-07 Hans Breuer <Hans@Breuer.Org> * art_misc.c : embryonic change to use libart_lgpl on win32 * libart.def : new file, exported functions for win32 dll * makefile.msc : handwritten for MSVC compiler 2000-09-30 Martin Baulig <baulig@suse.de> * libart-2.0.pc.in: Provide pkg-config script. * configure.in: Create libart-2.0.pc from libart-2.0.pc.in. * Makefile.am (pkgconfig_DATA): Install the libart-2.0.pc script in `$(libdir)/pkgconfig'. 2000-08-15 Raph Levien <raph@acm.org> * art_render.c (art_render_image_solid_negotiate): Only sets ART_IMAGE_SOURCE_CAN_COMPOSITE when a compositing callback is selected. Previously was causing segfaults on non-alpha images. Thanks to Leonard Rosenthol for spotting the bug. Fri Jun 30 22:56:58 2000 Raph Levien <raph@acm.org> * art_render.c (art_render_composite): Fixed a bug that caused it to ignore the alpha setting. Also art_render_composite_8(). 2000-06-01 John Sullivan <sullivan@eazel.com> * art_svp_render_aa.c: (art_svp_render_aa_iter_step): Made it build by correcting struct member name from Raph's previous checkin. Wed May 31 11:10:58 2000 Raph Levien <raph@acm.org> * art_svp_render_aa.c (art_svp_render_aa_iter_step): Updated n_steps_max in iter structure after steps reallocation. Tue May 30 10:33:13 2000 Raph Levien <raph@acm.org> * art_svp_render_aa.c (art_svp_render_aa_iter_step): Fixed not updating iter->steps when steps gets reallocated. 2000-05-30 Pavel Cisler <pavel@eazel.com> * art_rgba.c: Make it build -- fix a broken include. Tue May 30 00:09:21 2000 Raph Levien <raph@acm.org> * art_render_gradient.c (art_render_gradient_setpix): Fixed an off-by-one loop error. Mon May 29 15:00:39 2000 Raph Levien <raph@acm.org> * Makefile.am: Moved relevant .h files into HEADERS stanza. Mon May 29 13:48:49 2000 Raph Levien <raph@acm.org> This is a fairly major commit, as it adds both the new, modular rendering architecture and gradients. Quite a bit of the code feels like "reference code" now, in that it is (hopefully) correct, but not necessarily very fast. In addition, there remain a few things not done, including the use of SVP's as non-driver mask sources. AlphaGamma and filter level also remain unimplemented. No compositing modes other than ART_NORMAL are implemented. All in good time! * configure.in: added -Wmissing-prototypes flag. Bumped version number to 2.3.0. * art_render.h: * art_render.c: Added new rendering architecture. * art_render_svp.h: * art_render_svp.c: Added renderers to use SVP's as mask sources in new rendering architecture. * art_render_gradient.h: * art_render_gradient.c: Added linear and radial gradients as image sources in new rendering architecture. * art_rgba.h: * art_rgba.c: Added functions for manipulating and compositing RGBA pixels. * art_svp_wind.c: Added static to trap_epsilon(), #ifdef'd out traverse(). * art_uta_ops.c: Added #include "art_uta_ops.h". * art_uta_rect.c: Added #include "art_uta_rect.h". * art_uta_svp.h: fixed __ART_UTA_SVP_H__ name. * art_misc.h: Added ART_GNUC_NORETURN attribute, added that to the prototype for art_die(). Added "static" to function declarations to avoid warnings when compiled with * testart.c: Added gradient test. Thu May 25 23:30:39 2000 Raph Levien <raph@acm.org> * art_svp_render_aa.h: * art_svp_render_aa.c: Added art_svp_render_aa_iter functions, suitable for iterative rendering of an svp, one scan line at a time. * configure.in: Bumped version to 2.2.0. Tue May 16 15:03:35 2000 Raph Levien <raph@acm.org> * art_rgb_pixbuf_affine.c: Included corresponding .h file. * art_rgb_pixbuf_affine.h: Put recursive #includes inside LIBART_COMPILATION test. * art_gray_svp.c: * art_rgb_svp.c: Explicit casts for callback data. Also removed "render the steps into tmpbuf" comment. * gen_art_config.c: * Makefile.am: * configure.in: Added code to automatically generate an art_config.h file, to be installed in libart's include dir. This file defines ART_SIZEOF_{CHAR,SHORT,INT,LONG} and art_u{8,16,32}. * art_misc.h: Moved definition of art_u8 and art_u32 into art_config.h. Added GCC printf format attributes. * art_svp_wind.c (traverse): Fixed UMR bug here. The function isn't actually used, so it's just for cleanliness. 2000-04-18 Lauris Kaplinski <lauris@ariman.ee> * art_affine.c (art_affine_to_string): Replaced snprinf with art_ftoa to avoid localisation of generated numbers 2000-04-18 ERDI Gergo <cactus@cactus.rulez.org> * art_rgb_pixbuf_affine.h: Included the ArtPixBuf declaration Fri Apr 14 16:33:55 2000 Raph Levien <raph@acm.org> * art_svp_wind.c (art_svp_uncross, art_svp_rewind_uncrossed): Fixed uninitialized memory reads when inserting new segment into active_segs. * art_bpath.c (art_bpath_affine_transform): Made it avoid potential uninitialized memory reads when not all the coordinates are needed. Thanks to Morten Welinder for spotting both of these problems. 2000-04-05 Raph Levien <raph@gimp.org> * art_svp_wind.c: Make "colinear" warnings go to stderr instead of stdout. Of course, when I finish the new intersector, these will go away entirely. 2000-04-04 Raph Levien <raph@gimp.org> * art_uta_vpath.c (art_uta_add_line): Fixed bug that was causing segfaults on alphas. Thanks to msw for localizing it. 2000-01-17 Raph Levien <raph@gimp.org> * art_svp_vpath_stroke.c (art_svp_vpath_stroke): Typo in api header (thanks rak). 2000-01-16 Timur Bakeyev <timur@gnu.org> * autoconf.sh: Instead of jumping between srdir and builddir just process all the auto* staff in srcdir. In fact, just saying the same things in other words. 2000-01-10 Elliot Lee <sopwith@redhat.com> * Makefile.am, *.h: Add rather bad hacks to the header files to allow compilation * Makefile.am: Distribute libart-config.in 2000-01-09 Raph Levien <raph@gimp.org> art_rgb_pixbuf_affine.c, art_rgb_rgba_affine.c, art_rgb_svp.c, art_svp.c, art_svp_ops.c, art_svp_point.c, art_svp_render_aa.c, art_svp_vpath.c, art_svp_vpath_stroke.c, art_svp_wind.c, art_uta.c, art_uta_ops.c, art_uta_rect.c, art_uta_svp.c, art_uta_vpath.c, art_vpath.c, art_vpath_bpath.c, art_vpath_dash.c, art_vpath_svp.c: Added API documentation. Fri Sep 24 17:53:21 1999 Raph Levien <raph@acm.org> * art_svp_render_aa.c (art_svp_render_insert_active): Avoid reading undefined memory (thanks to Morten Welinder). 1999-09-19 Raph Levien <raph@gimp.org> * art_pixbuf.c (art_pixbuf_duplicate): Added a duplicate function at the request of Michael Meeks. 1999-09-11 Raph Levien <raph@gimp.org> * art_affine.c (art_affine_to_string): Tightened the predicate for matching rotate-only affines, which was too weak. Thanks to lewing for spotting it! 1999-09-01 Raph Levien <raph@gimp.org> * art_affine.c, art_alphagamma.c, art_bpath.c, art_gray_svp.c, art_misc.c, art_pixbuf.c, art_rect.c, art_rect_svp.c, art_rect_uta.c, art_rgb.c, art_rgb_affine.c, art_rgb_bitmap_affine.c: Updates to api doc headers. 1999-08-24 Raph Levien <raph@gimp.org> * art_affine.c, art_alphagamma.c, art_alphagamma.h, art_bpath.c, art_bpath.h, art_gray_svp.c, art_misc.c, art_pixbuf.c, art_pixbuf.h, art_point.h, art_rect.c, art_rect.h: Added api documentation headers. * testart.c: Added "dash" test, for testing the vpath_dash functions. * art_rgb_pixbuf_affine.h: Fixed the #ifdef for conditional inclusion. Thanks to Kristian Hogsberg Kristensen for spotting the bug. 1999-08-24 Raph Levien <raph@gimp.org> * art_svp_render_aa.c (art_svp_render_aa): Added some tests to avoid NaN for infinite slopes, which were causing problems on Alphas. Closes bug #1966. 1999-08-20 Federico Mena Quintero <federico@redhat.com> * configure.in: Fixed library's libtool version number. 1999-08-03 Larry Ewing <lewing@gimp.org> * art_vpath_dash.c (art_vpath_dash): fix a bug/typo that was causing certain paths to loop infinitely. 1999-07-28 Raph Levien <raph@gimp.org> * art_vpath_dash.[ch]: Added a function to add a dash style to vpaths. It is tested, but has a couple of rough edges (see code for details). * testart.c: added tests for the new vpath_dash functionality. * Makefile.am: added art_vpath_dash.[ch] files. 1999-07-26 Raph Levien <raph@gimp.org> * art_rgb.c (art_rgb_fill_run): fixed incorrect test for big-endianness. Thanks to Michael Zucchi for spotting it. Fri Jul 16 23:42:59 1999 Tim Janik <timj@gtk.org> * art_affine.c (art_affine_flip): flip translation matrixes as well, by inverting matrix[4] if (horz) and inverting matrix[5] if (vert). Fri Jul 16 23:03:26 1999 Tim Janik <timj@gtk.org> * art_pixbuf.[hc]: deprecated art_pixbuf_free_shallow(), people should always free pixbufs with art_pixbuf_free() and use the _dnotify variants for specific destruction behaviour. added art_pixbuf_new_rgb_dnotify() and art_pixbuf_new_rgba_dnotify() which allow for a destruction notification function. (this involved adding two extra pointers to the ArtPixBuf structure, and removal of the recently introduced int flags field). Mon Jul 12 01:13:23 1999 Tim Janik <timj@gtk.org> * art_affine.[hc]: added art_affine_equal(), which checks two matrixes for equality within grid alignment. Fri Jul 9 17:50:19 1999 Tim Janik <timj@gtk.org> * art_affine.[hc]: added art_affine_flip() to flip a matrix horizontally and/or vertically, or just copy it. added art_affine_shear() to setup a shearing matrix. Tue Jul 6 19:03:39 1999 Tim Janik <timj@gtk.org> * art_pixbuf.h: added an int flags; member to the end of the structure, it currently only holds information about whether the pixels member should be freed. (raph: i think flags is more generic than free_pixels, so we can reuse that field if further demands popup in the future). * art_pixbuf.c: (art_pixbuf_new_const_rgba): (art_pixbuf_new_const_rgb): new functions that prevent the pixels member from being freed upon art_pixbuf_free (). (art_pixbuf_free): only free the pixels member if it is non-NULL and the PIXBUF_FLAG_DESTROY_PIXELS is set. 1999-07-02 Raph Levien <raph@gimp.org> * art_vpath_bpath.c (art_vpath_render_bez): Bad bad uninitialized variables. * configure.in: added compile warnings. Guess why :) 1999-06-28 Raph Levien <raph@gimp.org> * art_svp_point.h: * art_svp_point.c: Added methods for insideness and distance testing, very useful for ::point methods in canvas items. * testart.c: test code to exercise the art_svp_point functions. * Makefile.am: Additional entries for art_svp_point. 1999-06-28 Raph Levien <raph@gimp.org> * art_svp_render_aa.c (art_svp_render_aa): Subtle boundary case in realloc code -- was causing nasty segfaults. Wed Jun 23 15:05:43 1999 Raph Levien <raph@gimp.org> * art_rgb_svp.c (art_rgb_svp_alpha_opaque_callback): Missed a case in the anti-segfault crusade. Thanks lewing! Wed Jun 23 11:16:42 1999 Raph Levien <raph@gimp.org> * art_rgb_svp.c: Made these routines so they won't segfault even if alpha is out of range. Of course, that begs the question of fixing the render routines so they won't _make_ alpha go out of range, but all in good time. Fri Jun 18 17:32:34 1999 Raph Levien <raph@acm.org> * art_vpath_bpath.c (art_bez_path_to_vec): Switched to a new adaptive subdivision algorithm, which (finally!) takes flatness into account. This should result in both smoother curves and faster operation. Sun Jun 13 21:07:20 1999 Raph Levien <raph@gimp.org> * art_svp_wind.c (art_svp_rewind_uncrossed): Made the winding rule logic even more correct :). I somehow missed the fact that a clockwise path should be given a winding number of zero; last night's commit tried to make it -1 (which worked for the test cases I was using). Sun Jun 13 01:23:14 1999 Raph Levien <raph@gimp.org> * art_svp_wind.c (art_svp_rewind_uncrossed): Change to winding rule logic so that it correctly handles the case where the leftmost segment is negative. * Makefile.am (libart_lgplinc_HEADERS): made art_svp_wind.h a public headerfile. This is needed for the bpath canvas item. I'm not sure this is the correct way to do it, but it will do for now. * art_vpath_bpath.h: * art_vpath_bpath.c (art_bez_path_to_vec): Added const to arg. * art_vpath_bpath.h: Embarrassing typo. * art_bpath.h: Minor tweaks to the #include paths. It is now consistent with the other header files. Wed Jun 9 20:24:45 1999 Raph Levien <raph@gimp.org> * art_svp_vpath_stroke.c: Added all remaining line join and cap types, including round, which takes flatness into account. Several new internal functions (art_svp_vpath_stroke_arc) and added flatness argument to a few internal functions. I might want to change the BEVEL join type to MITER for very small turn angles (i.e. within a flatness threshold) for efficiency. * art_misc.h: Added M_SQRT2 constant. Wed Jun 2 21:56:30 1999 Raph Levien <raph@gimp.org> * art_svp_vpath_stroke.c (art_svp_vpath_stroke_raw): Made the closed path detection capable of PostScript semantics (i.e. it now senses the difference between ART_MOVETO and ART_MOVETO_OPEN). * art_svp_vpath_stroke.c (art_svp_vpath_stroke_raw): it now filters out successive points that are (nearly) coincident. This fixes some of the crashes and hangs, including Tim Janik's singularity (trying to stroke MOVETO 50, 50; LINETO 50, 50; END). * art_svp_wind.c (art_svp_rewind_uncrossed): added a test to correctly handle empty input svp's. * art_svp_wind.c (art_svp_uncross): added a test to correctly handle empty input svp's. Sun Jan 17 20:53:40 1999 Jeff Garzik <jgarzik@pobox.com> * art_affine.c: Include string.h for memcpy. * art_svp_vpath.c: Remove conflicting static func definition. * art_uta_svp.c: Include art_vpath_svp.h for func definition. Mon Jan 4 12:47:47 1999 Raph Levien <raph@acm.org> * art_bpath.c (art_bpath_affine_transform): Stupid misnaming of this function (forgot the "art_"). Thu Dec 31 09:04:23 1998 Raph Levien <raph@gimp.org> * art_affine.c (art_affine_rectilinear): Added this function. * art_rect.c (art_drect_affine_transform): Corrected the name (it was right in the .h). Also made it work with non-rectilinear transforms, while I was at it. Thu Dec 17 11:58:24 1998 Raph Levien <raph@acm.org> * art_alphagamma.h: * art_alphagamma.c: The real code for alphagamma. Wed Dec 16 14:18:46 1998 Raph Levien <raph@gimp.org> * art_alphagamma.h: * art_alphagamma.c: Added. At present, it only contains a dummy stub. When the real code is added, it supports doing alpha compositing in a gamma-corrected color space (suppressing jaggies). * art_pixbuf.h: * art_pixbuf.c: Added. This is a virtualization layer over a few different kinds of image formats. * art_rgb_pixbuf_affine.h: * art_rgb_pixbuf_affine.c: Added. Supports compositing of generic images over an rgb buffer. * art_affine.h: * art_affine.c (art_affine_expansion): Added this function, which reports the exact scale factor in the case of rotation, scaling, and transformation (an approximate number in the case of shearing or anamorphic distortion). * art_misc.h: * art_misc.c (art_warn): Added. * art_rgb_affine.h: * art_rgb_affine.c: Added alphagamma argument (not yet implemented). * art_rgb_affine_private.c: Fixed typo bug that was causing repaint problems for nonsquare images. * art_rgb_bitmap_affine.h: * art_rgb_bitmap_affine.c: Major speed improvement, probably fixed correctness while I was at it. Added alphagamma argument (not yet implemented). * art_rgb_svp.h: * art_rgb_svp.c: Added alphagamma argument (only implemented in aa case, not yet alpha case). * art_vpath.c: increased perturbation to 2e-3, because the old value (1e-6) was too small. * testart.c: added alphagamma. * Makefile.am: added new files Sun Dec 27 21:45:03 1998 Raph Levien <raph@gimp.org> * art_rect.h: * art_rect.c: Added DRect versions of the basic ops (double rather than int). * art_rect_svp.h: * art_rect_svp.c: Added. This computes the bounding box of an svp. Wed Dec 16 14:18:46 1998 Raph Levien <raph@gimp.org> * art_alphagamma.h: * art_alphagamma.c: Added. At present, it only contains a dummy stub. When the real code is added, it supports doing alpha compositing in a gamma-corrected color space (suppressing jaggies). * art_pixbuf.h: * art_pixbuf.c: Added. This is a virtualization layer over a few different kinds of image formats. * art_rgb_pixbuf_affine.h: * art_rgb_pixbuf_affine.c: Added. Supports compositing of generic images over an rgb buffer. * art_affine.h: * art_affine.c (art_affine_expansion): Added this function, which reports the exact scale factor in the case of rotation, scaling, and transformation (an approximate number in the case of shearing or anamorphic distortion). * art_misc.h: * art_misc.c (art_warn): Added. * art_rgb_affine.h: * art_rgb_affine.c: Added alphagamma argument (not yet implemented). * art_rgb_affine_private.c: Fixed typo bug that was causing repaint problems for nonsquare images. * art_rgb_bitmap_affine.h: * art_rgb_bitmap_affine.c: Major speed improvement, probably fixed correctness while I was at it. Added alphagamma argument (not yet implemented). * art_rgb_svp.h: * art_rgb_svp.c: Added alphagamma argument (only implemented in aa case, not yet alpha case). * art_vpath.c: increased perturbation to 2e-3, because the old value (1e-6) was too small. * testart.c: added alphagamma. * Makefile.am: added new files Mon Dec 14 00:16:53 1998 Raph Levien <raph@gimp.org> * art_affine.c (art_affine_to_string): re-added the "scale" method that was accidentally deleted before check-in. * Makefile.am: added new files Sun Dec 13 00:52:39 1998 Raph Levien <raph@gimp.org> * art_affine.h: * art_affine.c: Added. Everything you ever wanted to do with an affine transform. Especially check the functions that generate concise PostScript strings for affine transforms. * art_filterlevel.h: A simple enum for selecting filtering style. * art_rgb_affine.h: * art_rgb_affine.c (art_rgb_affine): Added. This function composites an (opaque) rgb image over an rgb pixel buffer. At present, it's slow and only nearest neighbor filtering is enabled. * art_rgb_rgba_affine.h: * art_rgb_rgba_affine.c: Analogous, but for compositing rgba images. * art_rgb_bitmap_affine.h: * art_rgb_bitmap_affine.c: Analogous, but for compositing bitmap images. * art_rgb_affine_private.c (art_rgb_affine_run): Added. This is a common function used by all the rgb_affine modules to move testing for source image bbox out of the inner loop. * Makefile.am: added the new files * testart.c: exercise the image compositors Wed Dec 9 23:36:35 1998 Raph Levien <raph@gimp.org> * art_vpath.c (art_vpath_perturb): Made it deal correctly with closed paths (the MOVETO and closing LINETO have to agree). * art_svp_wind.c: Made the bbox calculations for the resulting svp's correct. * art_svp.h: * art_svp.c: The art_svp_seg_compare function moved here, because it's required in art_svp_ops. * art_svp.c (art_svp_add_segment): It now does bbox calculations. * art_svp_ops.h: * art_svp_ops.c: Added. Populated with basic union, intersection, and diff functions. * art_vpath_svp.h: * art_vpath_svp.c: Added. Populated with a function to convert from sorted to unsorted vector paths * Makefile.am: added the new files * testart.c: exercise the stroke outline and vector path operations. 1998-12-08 Herbert Valerio Riedel <hvr@hvrlab.ml.org> * art_svp_wind.c: added #include <string.h> for memcpy() Sun Dec 6 22:15:12 1998 Raph Levien <raph@gimp.org> * art_svp_wind.[ch], art_svp_vpath_stroke.[ch]: Added, but it doesn't work yet. These will do stroke outline and basic vector ops like union, intersect, etc. * art_svp_render_aa.c: Added a simple speedup based on bbox culling. I will want to do more speedups, but none of this is necessary for the freeze. * art_svp_vpath.c: Fixed some bugs in the art_svp_from_vpath in cases where there is more than one subpath. * art_vpath.h: * art_vpath.c (art_vpath_perturb): Added this function. This will help cheat as long as the basic vector ops have numerical stability problems. Fri Dec 4 18:00:38 1998 Raph Levien <raph@gimp.org> * art_svp_render_aa.c (art_svp_render_aa): Changed the api slightly, to guarantee that the steps are all within the range from x0 (inclusive) to x1 (exclusive). * art_gray_svp.c, art_gray_svp.h: Added. Populated with functions to render into a simple graymap. * art_rgb.c, art_rgb.c: Added. Populated with fill_run and run_alpha methods. * art_rgb_svp.c, art_rgb_svp.h: Added. Populated with functions to render into an RGB buffer, and to composite over an RGB buffer. * Makefile.am: added art_gray_svp, art_rgb, and art_rgb_svp. * testart.c: test the color and layered rendering. Mon Nov 30 01:30:25 1998 Raph Levien <raph@gimp.org> * testart.c: added vector path rendering stuff. Some of it needs to go out of the test framework and into the module, but the api hasn't settled down entirely yet (in the real code, all x's in the step field are within bounds). * art_svp_render_aa.c, art_svp_render_aa.c.h: added. * art_svp_vpath.c, art_svp_vpath.h: added. * art_pathcode.h: added ART_MOVETO_OPEN (libart uses an ART_MOVETO_OPEN code at the beginning to indicate an open path, while PostScript uses the lack of a closepath at the end). * art_vpath_bpath.c, art_vpath_bpath.h: fixed it up, added flatness arg to api. * Makefile.am: added new source files. Wed Nov 25 17:19:44 1998 Raph Levien <raph@gimp.org> * art_svp.h, art_svp.c: added, basic constructors for sorted vector paths. Sun Nov 22 23:21:09 1998 Raph Levien <raph@gimp.org> * Makefile.am (libart_lgplincdir): Fixed stupid bug in naming of the variable. Sun Nov 22 21:41:13 1998 Raph Levien <raph@gimp.org> * art_uta_vpath.c: moved art_uta_union into art_uta_ops. * art_uta_ops.[ch]: added, populated with art_uta_union. Thu Nov 19 00:19:40 1998 Raph Levien <raph@gimp.org> * libartConf.sh.in: added * Makefile.am: added creation of libartConf.sh, added -version-info * configure.in: added LIBART_VERSION_INFO, support for libartConf.sh * libart.m4: updated version history :) Wed Nov 18 18:15:20 1998 Raph Levien <raph@gimp.org> * configure.in (LIBART_VERSION): set this, so that libart-config --version now works. Wed Nov 18 16:50:58 1998 Raph Levien <raph@gimp.org> * libart.m4: added (just copied from esound) * configure.in, Makefile.am: added support for libart-config * libart-config.in: added (mostly copied from esound) Tue Nov 10 12:43:30 1998 Raph Levien <raph@acm.org> * Getting the library in shape for initial checkin to CVS. |