changelog

按照官方的说法：Cairo is a vector graphics library with cross-device output support. 翻译过来

	Split clipping into separate source and destination operand
	clips.  By default, source operands are not affected by
	any client clipping.  This matches the desired semantics
	for cairo.  When this code is ported back to the X server,
	that will have to select the clipping option which clip
	source operands to the client clip.

2005-05-18  Carl Worth  <[e-mail]>

	* configure.in: Add -head to CAIRO_VERSION after tagging with
	SNAPSHOT_0_1_5.

2005-05-18  Carl Worth  <[e-mail]>

	* NEWS: Add notes for snapshot 0.1.5.

	* configure.in: Increment version to 0.1.5.

2005-05-18  Carl Worth  <[e-mail]>

	* src/icimage.c (pixman_image_destroy): Clear pointers to NULL
	after destroying/freeing them.

2005-05-18  Carl Worth  <[e-mail]>
	
	* src/pixman.h: Declare pixman_fixed16_16_t properly as int32_t
	rather than just int. Reported by Lance Fetters.

2005-05-12  Keith Packard  <[e-mail]>

	reviewed by: cworth

	* src/ictrap.c: (pixman_composite_trapezoids):
	libpixman creates an A8 format object and sometimes forgets to
	destroy (when the bounds of the trapezoids are empty).
	Avoids creating the format object in that case.

2005-04-27  Owen Taylor  <[e-mail]>

	* src/icimage.c (pixman_image_set_clip_region): Set
	image->pCompositeClip here.
	(IcComputeCompositeRegion) src/icrect.c (pixman_color_rects):
	Remove workaround clipping to the clientClip.

2005-04-27  Owen Taylor  <[e-mail]>

	* src/ic.c: Don't use pixman_compositeSrc_8888x8888 when
	the source is x8r8g8b8 or x8b8g8r8.

2005-03-29  T Rowley  <[e-mail]>

	* src/pixman.h: add AIX to the test for inttypes.h

2005-03-11  Owen Taylor  <[e-mail]>

	* src/icformat.c (pixman_format_init): Set format->depth
	correctly instead of just using the bpp.

2005-03-07  Carl Worth  <[e-mail]>

	* configure.in: Increment version to 0.1.4-head post-snapshot.

	* RELEASING: Add notes on using -head suffix for PIXMAN_VERSION.

	* NEWS: Add notes for snapshot 0.1.4.

	* configure.in: Increment version to 0.1.4.

2005-03-04  Carl Worth  <[e-mail]>

	* src/ictrap.c (pixman_composite_trapezoids): Intersect bounds of
	trapezoids with the bounds of the destination surface before
	creating an intermediate surface.

2005-03-04  Carl Worth  <[e-mail]>

	* src/ictrap.c (pixman_composite_trapezoids): Add comment from
	xserver's mitrap.c.

2005-03-04  David Reveman  <[e-mail]>

	* src/pixman.h: 
	* src/ictrap.c: Add pixman_add_trapezoids.

2005-03-03  Carl Worth  <[e-mail]>

	* src/icimage.c (miIsSolidAlpha): Port from render/mipict.c.

	* src/ictrap.c (pixman_composite_trapezoids): Merge in
	optimization from render/mitrap.c for op==ADD and solid alpha src.

2005-03-03  Carl Worth  <[e-mail]>

	* src/pixman-xserver-compat.h (BoxRec, BoxPtr, Bool, TRUE, FALSE):
	Add a few more things that might be helpful when moving more files
	over from xserver.

2005-03-03  Carl Worth  <[e-mail]>

	* src/icint.h:
	* src/ictrap.c: Move definitions of MIN and MAX macros from
	ictrap.c to icint.h.

2005-03-03  Carl Worth  <[e-mail]>

	* src/ictrap.c (pixman_composite_trapezoids): Remove dead "if
	(!format)" code which also makes things more in synch with the
	server's mitrap.c.

2005-03-03  Carl Worth  <[e-mail]>

	* src/ictrap.c: Restore original copyright and license which must
	have been inadvertently changed.

2005-03-02  Carl Worth  <[e-mail]>

	* src/pixman-xserver-compat.h: Fix comment to clarify that
	libpixman regards the xserver repository as its canonical upstream
	for some files.

	* src/ic.c, src/icblt.c, src/icbltone.c, src/iccolor.c,
	src/iccompose.c, src/icformat.c, src/icimage.c, src/icimage.h,
	src/icint.h, src/icpixels.c, src/icrect.c, src/icrop.h,
	src/icstipple.c, src/ictransform.c, src/ictrap.c, src/ictri.c,
	src/icutil.c, src/pixman.h, src/slim_internal.h: Convert file
	encodings from ISO-8859 to UTF-8.

2005-02-21  Carl Worth  <[e-mail]>

	* src/renderedge.h: Add only-just-better-than-ASCII-art diagram
	showing all macros used in locating sub-pixel sample rows/columns.
	
	* src/renderedge.h (RenderEdgeStepSmall, RenderEdgeStepBig): Add
	missing protective parentheses around macro parameter usage.

2005-02-21  Carl Worth  <[e-mail]>

	* src/ic.c: 
	* src/icint.h: Move definition of __inline for non-gcc from ic.c
	to icint.h so it applies to more code in the implementation.

2005-02-06  Owen Taylor  <[e-mail]>

	* configure.in: Add AC_PREREQ(2.54) to help the Debian 
	auto-guess-which-configure-version hack.

2005-01-26  Carl Worth  <[e-mail]>

	* src/pixman.h: Use 32-bits for pixman_bits_t, even on 64-bit
	platforms. This should fix bug #2335 as well as rendering problems
	seen on 64-bit platforms.

2005-01-21  Carl Worth  <[e-mail]>

	* NEWS: Add notes for snapshot 0.1.3.

	* configure.in: Increment version to 0.1.3

	* RELEASING: Add reminder to diff pixman.h to look for API changes
	since the last snapshot.

	* src/Makefile.am (libpixman_la_SOURCES): Add missing files to
	satisfy make distcheck.

	* Makefile.am (RELEASE_UPLOAD_DIR): Update for changed www
	directory on server.

	* src/pixman-xserver-compat.h): Add pixman-xserver-compat.h, (that
	was supposed to go in a couple of commits ago).

	* src/fbedgeimp.h (rasterizeEdges): Avoid buffer ovverrun when
	trapezoid's right edge is on a pixel boundary.

	* src/ictri.c (IcRasterizeTriangle): 
	* src/ictrap.c (pixman_composite_trapezoids): Switch to use new
	fbRasterizeTrapezoid. Gut old IcRasterizeTrapezoid
	implementation. Remove lots of code, (and all the bugs with it).

	* src/icint.h: Replace IcRasterizeTrapezoid with
	fbRasterizeTrapezoid. Add a couple of missing typedefs.

	* src/renderedge.h: 
	* src/renderedge.c (RenderLineFixedEdgeInit): 
	* src/fbtrap.c: 

	* src/fbedge.c: Minor changes to allow things to compile within
	libpixman tree, (replace xserver include directives with
	pixman-xserver-compat.h and sprinkle a few const qualifiers).

	* src/Makefile.am (libpixman_la_SOURCES): Add sources for new
	point-sampling rasterization.

	* src/fbtrap.c: Merge in changes from xserver, (mostly just
	whitespace).

2005-01-18  Carl Worth  <[e-mail]>

	* src/fbedge.c:
	* src/fbedgeimp.h:
	* src/fbtrap.c:
	* src/renderedge.c:
	* src/renderedge.h: Add pristine files from the X server
	containing Keith's newer point-sampling implementation of
	trapezoid rasterization. The plan is to munge these files as
	little as possible to make them work within libpixman, (so that it
	will be easier to share patches between libpixman and the X
	server).
	
2005-01-13  Carl Worth  <[e-mail]>

	* src/ictrap.c (IcRasterizeTrapezoid): Force alpha to 0 when the
	left edge is entirely above top. (This is a workaround for some
	bizarre edge effects in the current algorithm).
	(IcRasterizeTrapezoid): Fix the above correction so that it
	doesn't force 0 alpha when the left edge is positioned above but
	slopes so as to contain some of the pixel.

2005-01-07  Carl Worth  <[e-mail]>

	* src/icrop.h: 
	* src/icint.h: Restore extern tag for variable declarations,
	(accidentally removed when recently removing extern from function
	prototypes).

2005-01-04  Carl Worth  <[e-mail]>

	* src/ic.c (pixman_composite): Do nothing if src image has width
	or height == 0 to avoid potential divide-by-zero.

2004-12-23  Carl Worth  <[e-mail]>

	* src/slim_internal.h: Rename __internal_linkage to
	pixman_private.

	* src/icrop.h: 
	* src/icint.h: 
	* src/icimage.h: Track rename to pixman_private and move it to
	before the function return value to quiet gcc warnings about
	visibility attribute ignored for non-class type.

	* configure.in: 
	* src/Makefile.am (INCLUDES): Add the following warnings when
	compiling with gcc: -Wall -Wpointer-arith -Wstrict-prototypes
	-Wmissing-prototypes -Wmissing-declarations -Wnested-externs
	-fno-strict-aliasing

	* src/icrect.c (pixman_color_rects): Fix to actually call
	pixman_fill_rect_32bpp in the 32 bpp case. Thanks to
	TOKUNAGA Hiroyuki <[e-mail]>.
	(pixman_fill_rect_8bpp, pixman_fill_rect_32bpp): Fix typo in
	naming: bbp -> bpp.

2004-12-20  Alexander Larsson  <[e-mail]>

	* src/icrect.c: (pixman_fill_rect_8bbp), (pixman_fill_rect_32bbp),
	(pixman_fill_rect_general), (pixman_color_rects),
	(pixman_fill_rectangles):
	Special case solid color rectangle fills.

2004-10-28  Carl Worth  <[e-mail]>

	* Makefile.am (release-verify-newer): Abort release-publish if
	there's already a published tar file with the current version.
	(release-publish): Add code to update the LATEST-package-version
	file.

2004-10-27  Carl Worth  <[e-mail]>

	* RELEASING: Put the tag command back which was accidentally
	removed from the instructions.

	* NEWS: Update date since 0.1.2 release didn't get pushed out
	until today.

	* RELEASING: Update release instructions to include new
	release-publish target.
	Suggest "cvs -q update -Ad" as an alternative to checkout.

	* Makefile.am (release-publish): Add release-check and
	release-publish targets to simplify the release process.

2004-10-13  Carl Worth  <[e-mail]>

	* NEWS: Add notes for snapshot 0.1.2

	* configure.in: Increment version to 0.1.2

	* src/icint.h (MOD): 
	* src/iccompose.c (IcFetch_transform): 
	* src/ic.c (pixman_composite): Switch from two different buggy mod
	macros to a new MOD macro which should work in C89 or C99.

2004-09-12  David Reveman  <[e-mail]>

	* src/icformat.c (pixman_format_init): pixman_format_init expects
	that all variables not touched are zero. We need to add a memset
	here to make that true.
	Added pixman_format_get_masks, which allow clients to get the
	masks from a format.

	* src/icimage.c: Added the implementation of pixman_image_get_format,
	which was missing.

	* src/icint.h: slim_hidden_proto pixman_image_set_component_alpha.

	* src/pixman.h: Added pixman_image_set_component_alpha, making it
	possible to use component alpha.

	* src/icimage.c (pixman_image_set_clip_region): Make a copy of
	the client owned region.
	(IcComputeCompositeRegion): Intersect possible client region.
	Added pixman_image_set_component_alpha.

	* src/icint.h: Include "../config.h".
	Define IMAGE_BYTE_ORDER and BITMAP_BIT_ORDER correctly.

	* configure.in: Added AC_C_BIGENDIAN.

	* src/ic.c (pixman_composite): 
	* src/iccompose.c (IcFetch_transform, IcFetcha_transform): 
	* src/icimage.h: Added support for both transform and repeat
	(thanks to Owen Taylor <[e-mail]>).

2004-05-06  Carl Worth  <[e-mail]>

	* src/icimage.c (pixman_image_set_clip_region): Leave
	clientClipType as CT_NONE if region is NULL (thanks to Vladimir
	Vukicevic <[e-mail]>).

2004-04-16  Carl Worth  <[e-mail]>

	* NEWS: Add notes for snapshot 0.1.1

	* configure.in: Increment LIBPIXMAN_VERSION to 0.1.1

	* src/ictrap.c (IcCreateAlphaPicture): 
	* src/icrect.c (pixman_color_rects): 
	* src/pixregion.c (pixman_region16_print, pixman_region16_valid): 
	* src/icint.h (IcBitsMask):
	* src/icimage.h:
	* src/icimage.c (pixman_image_change):
	* src/icformat.c (pixman_format_create): 
	* src/pixman.h: Fix bogus names such as PIXMAN_FORMAT_NAME_AR_GB32
	that were left over from a broken search-and-replace. Normalize
	structure defintions, (eg. struct _pixman_region16_t -> struct
	pixman_region16). Normalize indentation.

	* AUTHORS: Fix alphabetization.

2004-02-24  Carl Worth  <[e-mail]>

	* AUTHORS: Added attribution for several authors after sifting
	through the ChangeLog.
	Fix email address for Anders Carlsson.

2004-01-24  Carl Worth  <[e-mail]>

	* src/iccompose.c (IcFetch_transform): 
	(IcFetcha_transform): Remove dead-code (useless n++).

2004-01-22  Richard Worth <[e-mail]>

	* src/Makefile.am: Add '-no-undefined' to end of
	libpixman_la_LDFLAGS tp enable building shared libary under
	cygwin.

	* src/pixman.h: Remove all 'extern ' and ' __external_linkage'
	(macro for __declspec(dllexport) and __declspec(dllimport))
	from function declarations. These are no longer needed for cygwin.
	
2003-12-17  Carl Worth  <[e-mail]>

	* src/pixman.h: Remove trailing commas from enum, (some compilers
	like to complain about this).

2003-12-12  Dave Beckett  <[e-mail]>

	* src/Makefile.am: Remove LIBPIXMAN_CFLAGS/LIBS cruft.
	(libpixman_la_SOURCES): slim_export.h slim_import.h gone.

2003-12-12  Carl Worth  <[e-mail]>

	* src/pixman.h: Fold contents of slim_export/import.h directly
	into this file to avoid dependence on external slim package.