gecko-dev/gfx/cairo/README

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Snapshots of cairo and glitz for mozilla usage.
We only include the relevant parts of each release (generally, src/*.[ch]),
as we have Makefile.in's that integrate into the Mozilla build system. For
documentation and similar, please see the official tarballs at
http://www.cairographics.org/.
VERSIONS:
cairo (12d521df8acc483b2daa844d4f05dc2fe2765ba6)
pixman (2f4f2fb4859931bf6dc5632d8c919e7296736427)
***** NOTE FOR VISUAL C++ 6.0 *****
VC6 is not supported. Please upgrade to VC8.
==== Patches ====
Some specific things:
max-font-size.patch: Clamp freetype font size to 1000 to avoid overflow issues
win32-logical-font-scale.patch: set CAIRO_WIN32_LOGICAL_FONT_SCALE to 1
nonfatal-assertions.patch: Make assertions non-fatal
buggy-repeat.patch: Unconditionally turn on buggy-repeat handling to bandaid bug 413583.
cairo-version-fixes.patch: fix up cairo-version.c/cairo-version.h for in-place builds
win32-ddb-dib.patch: fix for bug 455513; not upstream yet pending feebdack
wince-fixes.patch: stubs out win32 functions we use but are not supported on win32. Also implements ExtSelectClipRgn in terms of other functions available on wince.
win32-vertically-offset-glyph.patch: bug 454098; vertical positioning errors when drawing glyph runs including delta-y offsets on screen via GDI
ignore-rank0.patch: bug 474886; Not redrawing the background when changing page on flickr
win32-canvas-glyph-position.patch: bug 475092; horizontal positioning errors when drawing glyph runs with delta-y offsets to canvas through win32-font
win32-cleartype-clipping.patch: bug 445087; some glyphs are clipped, mainly on right-hand edge, when ClearType is enabled and drawing to RGBA canvas
on-edge.patch: reverts the in-fill semantic change.
wrap-source_image.patch: make sure we don't free the source image until we're done with it.
zero-sized.patch: deal with zero sized surface in ways less likely to crash.
text-path-filling-threshold.patch: use path filling instead of platform glyph rasterization at a smaller size threshold of 256 device pixels, if the backend supports native filling (which we assume will be fast).
zombie-face.patch: bug 486974; leak and possible crash with @font-face{src:url()}. Upstream commit: 0238fe2cafea2e1ed19bb222117bd73ee6898d4d
win32-raster.patch: bug 498689; use scanline rasterizer on win32
quartz-falback.patch: try to fix Quartz fallback-to-pixman path; possiby incorrect and obsoleted by Andrea Canciani patch
quartz-repeating-radial-gradients.patch: use Quartz to render repeating radial gradients instead of falling back
quartz-const-globals.patch: make some Quartz color function data const globals instead of local variables
quartz-minimze-gradient-repeat.patch: reduce the number of gradient stop repetitions we use, to improve quality of Quartz's gradient rendering
quartz-first-stop.patch: return the first stop for negative positions on the gradient line of a nonrepeating linear gradient
quartz-glyph-extents.patch: bug 534260; work around incorrect glyph extents returned by quartz for anomalous empty glyphs
quartz-state.patch: bug 522859; refactor cairo-quartz-surface so that state local to a drawing operation is stored in a cairo_quartz_drawing_state_t instead of the surface
quartz-cache-CGImageRef.patch: cache CGImageRef for a CGBitmapContext; when we reuse it, Quartz will cache stuff, improving performance
quartz-remove-snapshot.patch: remove broken implementation of backend snapshot
quartz-cglayers.patch: add support for cairo surfaces backed by CGLayers
quartz-cglayers-fix-fallback.patch: Bug 572912; fix bug in fallback code in previous patch
quartz-get-image.patch: Bug 575521; add a way to get the image surface associated with a surface
quartz-create-for-data.patch: Bug 575521; add a way to create quartz surfaces backed with application-provided data
premultiply-alpha-solid-gradients.patch: bug 539165; multiply the solid color by the alpha component before using it for a solid surface
xlib-initialize-members.path: bug 548793; initialize XRender version if the server doesn't have the extension
remove-comma: remove a comma from enum
d2d.patch: add d2d support
fix-zero-len-graident.patch: fix zero length gradients
fix-clip-copy.patch: fix clip copying
fix-clip-region-simplification.patch: fixes a bug in clip region simplifications
expand-in-stroke-limits.patch: expand the in-stroke limits to avoid a bug
d2d-dwrite.patch: update the d2d/dwrite stuff
add-a-stash-of-cairo_t-s.patch: use the stash to avoid malloc/freeing cairo_t's
bgr.patch: fix image wrapping
disable-server-graidents.patch: disable server-side gradients
clip-invariant.patch: make rasterization closer to being clip invariant
fix-unnecessary-fallback.patch: avoid unnecessary fallback
handle-a1-upload.patch: handle a1 image uploads through converter
surface-clipper.patch: remove an incorrect optimization
fix-win32-show-glyphs-clipping.patch: fix a clipping bug
native-clipping.patch: Add support for a native clipping api
quartz-is-clear.patch: Propagate the quartz is_clear flag.
cairo-qt-compile.patch: Fix compile error, return not reached, and clone_similar interface
dwrite-glyph-extents.patch: Add padding to extents of antialiased glyphs, to avoid unwanted clipping. (bug 568191)
fix-ps-output.patch: PS: Add missing 'q' when resetting clip path (42b5cac7668625c9761113ff72b47af5cfd10377)
ensure-text-flushed.patch: PDF-operators: ensure text operations flushed before emitting clip (42b5cac7668625c9761113ff72b47af5cfd10377)
fix-xcopyarea-with-clips.patch: 5d07307b691afccccbb15f773d5231669ba44f5a
cairo-x-visual.patch: make valid visua for cairo_xlib_surface_create_with_xrender_format (55037bfb2454a671332d961e061c712ab5471580)
win32-transparent-surface.patch: add API so we can create a win32 surface for an HDC and indicate the surface has an alpha channel
cairo_qt_glyphs.patch: Drop X surface from Qt surface, add support for new qt glyphs api
empty-clip-rectangles.patch: f2fa15680ec3ac95cb68d4957557f06561a7dc55
empty-clip-extents.patch: b79ea8a6cab8bd28aebecf6e1e8229d5ac017264
clip-rects-surface-extents.patch: 108b1c7825116ed3f93aa57384bbd3290cdc9181
disable-previous-scaled-font-cache.patch: Disable the previous-scaled-font-cache until we figure out our ctm handling (#583035)
copyarea-with-alpha.patch: support simple overlapping self copies in (some) color_alpha xlib surfaces. https://bugs.freedesktop.org/show_bug.cgi?id=29250
fix-clip-test.patch: Use y 498c10032ea3f8631a928cd7df96766f2c8ddca4
quartz-refactor-surface-setup.patch: Extract the surface-source setup chunk of _cairo_quartz_setup_state into its own function
quartz-fix-PAD.patch: Treat PAD like NONE instead of REPEAT
quartz-mask-non-OVER.patch: Don't use CGContextSetAlpha to optimize alpha masking for non-OVER operators
quartz-layers-content.patch: Store cairo content type in CGLayer surfaces
quartz-optimize-OVER.patch: Optimize OVER to SOURCE for opaque patterns
quartz-check-imageSurfaceEquiv.patch: Drop cairo_quartz_surface_t's "imageSurfaceEquiv" member variable if we have problems creating it
==== pixman patches ====
pixman-android-cpu-detect.patch: Add CPU detection support for Android, where we can't reliably access /proc/self/auxv.
pixman-rename-and-endian.patch: include cairo-platform.h for renaming of external symbols and endian macros
NOTE: we previously supported ARM assembler on MSVC, this has been removed because of the maintenance burden
pixman-export.patch: use cairo_public for PIXMAN_EXPORT to make sure pixman symbols are not exported in libxul
==== disable printing patch ====
disable-printing.patch: allows us to use NS_PRINTING to disable printing.