The Tor Browser: gfx/cairo/README@97036ab72558 (annotated)

win32-canvas-glyph-position.patch: bug 475092; horizontal positioning errors when drawing glyph runs with delta-y offsets to canvas through win32-font

michael@0

35

win32-cleartype-clipping.patch: bug 445087; some glyphs are clipped, mainly on right-hand edge, when ClearType is enabled and drawing to RGBA canvas

michael@0

37

on-edge.patch: reverts the in-fill semantic change.

michael@0

39

wrap-source_image.patch: make sure we don't free the source image until we're done with it.

michael@0

41

zero-sized.patch: deal with zero sized surface in ways less likely to crash.

michael@0

43

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).

michael@0

45

zombie-face.patch: bug 486974; leak and possible crash with @font-face{src:url()}. Upstream commit: 0238fe2cafea2e1ed19bb222117bd73ee6898d4d

michael@0

47

win32-raster.patch: bug 498689; use scanline rasterizer on win32

michael@0

49

quartz-falback.patch: try to fix Quartz fallback-to-pixman path; possiby incorrect and obsoleted by Andrea Canciani patch

michael@0

51

quartz-repeating-radial-gradients.patch: use Quartz to render repeating radial gradients instead of falling back

michael@0

53

quartz-const-globals.patch: make some Quartz color function data const globals instead of local variables

michael@0

55

quartz-minimze-gradient-repeat.patch: reduce the number of gradient stop repetitions we use, to improve quality of Quartz's gradient rendering

michael@0

57

quartz-first-stop.patch: return the first stop for negative positions on the gradient line of a nonrepeating linear gradient

michael@0

59

quartz-glyph-extents.patch: bug 534260; work around incorrect glyph extents returned by quartz for anomalous empty glyphs

michael@0

61

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

michael@0

63

quartz-cache-CGImageRef.patch: cache CGImageRef for a CGBitmapContext; when we reuse it, Quartz will cache stuff, improving performance

michael@0

65

quartz-remove-snapshot.patch: remove broken implementation of backend snapshot

michael@0

67

quartz-cglayers.patch: add support for cairo surfaces backed by CGLayers

michael@0

69

quartz-cglayers-fix-fallback.patch: Bug 572912; fix bug in fallback code in previous patch

michael@0

71

quartz-get-image.patch: Bug 575521; add a way to get the image surface associated with a surface

michael@0

73

quartz-create-for-data.patch: Bug 575521; add a way to create quartz surfaces backed with application-provided data

michael@0

75

premultiply-alpha-solid-gradients.patch: bug 539165; multiply the solid color by the alpha component before using it for a solid surface

michael@0

77

xlib-initialize-members.path: bug 548793; initialize XRender version if the server doesn't have the extension

michael@0

79

remove-comma: remove a comma from enum

michael@0

81

d2d.patch: add d2d support

michael@0

83

fix-zero-len-graident.patch: fix zero length gradients

michael@0

85

fix-clip-copy.patch: fix clip copying

michael@0

87

fix-clip-region-simplification.patch: fixes a bug in clip region simplifications

michael@0

89

expand-in-stroke-limits.patch: expand the in-stroke limits to avoid a bug

michael@0

91

d2d-dwrite.patch: update the d2d/dwrite stuff

michael@0

93

add-a-stash-of-cairo_t-s.patch: use the stash to avoid malloc/freeing cairo_t's

michael@0

95

bgr.patch: fix image wrapping

michael@0

97

disable-server-graidents.patch: disable server-side gradients

michael@0

99

clip-invariant.patch: make rasterization closer to being clip invariant

michael@0

101

fix-unnecessary-fallback.patch: avoid unnecessary fallback

michael@0

103

handle-a1-upload.patch: handle a1 image uploads through converter

michael@0

105

surface-clipper.patch: remove an incorrect optimization

michael@0

107

fix-win32-show-glyphs-clipping.patch: fix a clipping bug

michael@0

109

native-clipping.patch: Add support for a native clipping api

michael@0

111

quartz-is-clear.patch: Propagate the quartz is_clear flag.

michael@0

113

cairo-qt-compile.patch: Fix compile error, return not reached, and clone_similar interface

michael@0

115

dwrite-glyph-extents.patch: Add padding to extents of antialiased glyphs, to avoid unwanted clipping. (bug 568191)

michael@0

117

fix-ps-output.patch: PS: Add missing 'q' when resetting clip path (42b5cac7668625c9761113ff72b47af5cfd10377)

michael@0

119

ensure-text-flushed.patch: PDF-operators: ensure text operations flushed before emitting clip (42b5cac7668625c9761113ff72b47af5cfd10377)

michael@0

121

fix-xcopyarea-with-clips.patch: 5d07307b691afccccbb15f773d5231669ba44f5a

michael@0

123

cairo-x-visual.patch: make valid visua for cairo_xlib_surface_create_with_xrender_format (55037bfb2454a671332d961e061c712ab5471580)

michael@0

125

win32-transparent-surface.patch: add API so we can create a win32 surface for an HDC and indicate the surface has an alpha channel

michael@0

127

cairo_qt_glyphs.patch: Drop X surface from Qt surface, add support for new qt glyphs api

michael@0

129

empty-clip-rectangles.patch: f2fa15680ec3ac95cb68d4957557f06561a7dc55

michael@0

131

empty-clip-extents.patch: b79ea8a6cab8bd28aebecf6e1e8229d5ac017264

michael@0

133

clip-rects-surface-extents.patch: 108b1c7825116ed3f93aa57384bbd3290cdc9181

michael@0

135

disable-previous-scaled-font-cache.patch: Disable the previous-scaled-font-cache until we figure out our ctm handling (#583035)

michael@0

137

copyarea-with-alpha.patch: support simple overlapping self copies in (some) color_alpha xlib surfaces. https://bugs.freedesktop.org/show_bug.cgi?id=29250

michael@0

139

fix-clip-test.patch: Use y 498c10032ea3f8631a928cd7df96766f2c8ddca4

michael@0

141

quartz-refactor-surface-setup.patch: Extract the surface-source setup chunk of _cairo_quartz_setup_state into its own function

michael@0

143

quartz-fix-PAD.patch: Treat PAD like NONE instead of REPEAT

michael@0

145

quartz-mask-non-OVER.patch: Don't use CGContextSetAlpha to optimize alpha masking for non-OVER operators

michael@0

147

quartz-layers-content.patch: Store cairo content type in CGLayer surfaces

michael@0

149

quartz-optimize-OVER.patch: Optimize OVER to SOURCE for opaque patterns

michael@0

151

quartz-check-imageSurfaceEquiv.patch: Drop cairo_quartz_surface_t's "imageSurfaceEquiv" member variable if we have problems creating it

michael@0

153

disable-subpixel-antialiasing.patch: Add API to disable subpixel antialiasing completely for a target surface

michael@0

155

tee-surfaces-pointwise.patch: Composite tee subsurfaces pointwise if possible

michael@0

157

pattern_get_surface-no-error.patch: Don't put a pattern into error if cairo_pattern_get_surface fails

michael@0

159

missing-cairo-clip-init.diff: Missing cairo_clip_init call in cairo_gstate_show_text_glyphs lead to crash

michael@0

161

fix-cairo-win32-print-gdi-error.diff: Don't use fwprintf with char* format. Flush stderr so that all error messages appears before exit.

michael@0

163

pixman-image-transform.patch: Reset the transform on pixman images when using them as destinations.

michael@0

165

fix-cairo-surface-wrapper-flush-build-warning.patch: Ensures that _cairo_surface_wrapper_flush always returns a status, to silence the build warning

michael@0

167

fixup-unbounded.patch: Hack to work around bad assumption.

michael@0

169

quartz-get-image-performance: Make cairo_quartz_get_image faster in the failure case by not flushing unless we are going to succeed.

michael@0

171

lround-c99-only.patch: Only use lround in C99 programs.

michael@0

173

unicode-printing.patch: Print as unicode (bug 454532)

michael@0

175

quartz-mark-dirty.patch: Add a quartz implementation of mark_dirty_rectangle (bug 715704)

michael@0

177

expose-snapshot.patch: Make functions to add snapshots public, as well as allow creating null surfaces publically. (bug 715658)

michael@0

179

fix-build-with-Werror=return-type.patch: Fix builds with -Werror=return-type (bug 737909)

michael@0

181

avoid-extend-none.patch: Avoid incorrectly using EXTEND_NONE (bug 751668)

michael@0

183

win32-ExtCreatePen-zero-size.patch: Don't pass zero width or dash lengths to ExtCreatePen (bug 768348)

michael@0

185

d2d-repeating-gradients.patch: Minimize number of gradient stops added to handle repeating with path fills (bug 768775)

michael@0

187

xlib-glyph-clip-region.patch: bug 709477, addressed upstream by be1ff2f45fdbc69537e513834fcffa0435e63073

michael@0

189

gdi-RGB24-ARGB32.patch: bug 788794

michael@0

191

dwrite-font-printing.patch: bug 468568; don't substitute a GDI font for a DWrite font if the name tables aren't equal

michael@0

193

d2d-gradient-ensure-stops.patch: bug 792903, ensure we don't set num_stops to 0

michael@0

195

setlcdfilter_in_tree.patch: bug 790139; force cairo to use FT_Library_SetLcdFilter from our in tree library rather than picking it up from the system

michael@0

197

dwrite-font-match-robustness.patch: bug 717178, don't crash when _name_tables_match is passed a nil scaled-font

michael@0

199

handle-multi-path-clip.patch: bug 813124, handle multiple clip paths correctly

michael@0

201

win32-gdi-font-cache.patch: Bug 717178, cache GDI font faces to reduce usage of GDI resources

michael@0

203

win32-gdi-font-cache-no-HFONT.patch: Bug 717178, don't cache GDI font faces when an HFONT belonging to the caller is passed in

michael@0

205

fix-win32-font-assertion.patch: Bug 838617, fix assertion from bug 717178 that was in the wrong place

michael@0

207

xlib-flush-glyphs.patch: bug 839745, flush glyphs when necessary

michael@0

209

dasharray-zero-gap.patch: bug 885585, ensure strokes get painted when the gaps in a dash array are all zero length

michael@0

211

cairo-mask-extends-bug.patch: bug 918671, sometimes when building a mask we wouldn't clear it properly. This is fixed in cairo 1.12

michael@0

213

ft-no-subpixel-if-surface-disables.patch: bug 929451, don't use subpixel aa for ft fonts on surfaces that don't support it

michael@0

215

==== pixman patches ====

michael@0

217

pixman-android-cpu-detect.patch: Add CPU detection support for Android, where we can't reliably access /proc/self/auxv.

michael@0

219

pixman-rename-and-endian.patch: include cairo-platform.h for renaming of external symbols and endian macros

michael@0

221

NOTE: we previously supported ARM assembler on MSVC, this has been removed because of the maintenance burden

michael@0

223

pixman-export.patch: use cairo_public for PIXMAN_EXPORT to make sure pixman symbols are not exported in libxul

michael@0

225

pixman-limits.patch: include limits.h for SIZE_MAX

michael@0

227

pixman-lowres-interp.patch: Use lower quality interpolation for more speed.

michael@0

229

pixman-bilinear-fastpath.patch: Bilinear fast paths for non-neon

michael@0

231

pixman-16-bit-pipeline.patch: 16 bit pipeline for dithering

michael@0

233

pixman-dither.patch: Add dithering of 16 bit gradients

michael@0

235

quartz-support-color-emoji-font.patch: support Apple Color Emoji font in cairo-quartz backend

michael@0

237

use-show-text-glyphs-if-glyph-path-fails.patch: fall back to show_text_glyphs even at huge sizes if scaled_font_glyph_path didn't work

michael@0

239

pixman-enable-altivec-acceleration.patch: enable building the altivec acceleration

michael@0

241

win32-d3dsurface9.patch: Create a win32 d3d9 surface to support LockRect

michael@0

243

win32-avoid-extend-pad-fallback: Avoid falling back to pixman when using EXTEND_PAD

michael@0

245

==== disable printing patch ====

michael@0

247

disable-printing.patch: allows us to use NS_PRINTING to disable printing.

michael@0

249

==== cairo clamp bounday patch ====

 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 (0.24.2)
 ==== 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
 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
 disable-subpixel-antialiasing.patch: Add API to disable subpixel antialiasing completely for a target surface
 tee-surfaces-pointwise.patch: Composite tee subsurfaces pointwise if possible
 pattern_get_surface-no-error.patch: Don't put a pattern into error if cairo_pattern_get_surface fails
 missing-cairo-clip-init.diff: Missing cairo_clip_init call in cairo_gstate_show_text_glyphs lead to crash
 fix-cairo-win32-print-gdi-error.diff: Don't use fwprintf with char* format.  Flush stderr so that all error messages appears before exit.
 pixman-image-transform.patch: Reset the transform on pixman images when using them as destinations.
 fix-cairo-surface-wrapper-flush-build-warning.patch: Ensures that _cairo_surface_wrapper_flush always returns a status, to silence the build warning
 fixup-unbounded.patch: Hack to work around bad assumption.
 quartz-get-image-performance: Make cairo_quartz_get_image faster in the failure case by not flushing unless we are going to succeed.
 lround-c99-only.patch: Only use lround in C99 programs.
 unicode-printing.patch: Print as unicode (bug 454532)
 quartz-mark-dirty.patch: Add a quartz implementation of mark_dirty_rectangle (bug 715704)
 expose-snapshot.patch: Make functions to add snapshots public, as well as allow creating null surfaces publically. (bug 715658)
 fix-build-with-Werror=return-type.patch: Fix builds with -Werror=return-type (bug 737909)
 avoid-extend-none.patch: Avoid incorrectly using EXTEND_NONE (bug 751668)
 win32-ExtCreatePen-zero-size.patch: Don't pass zero width or dash lengths to ExtCreatePen (bug 768348)
 d2d-repeating-gradients.patch: Minimize number of gradient stops added to handle repeating with path fills (bug 768775)
 xlib-glyph-clip-region.patch: bug 709477, addressed upstream by be1ff2f45fdbc69537e513834fcffa0435e63073
 gdi-RGB24-ARGB32.patch: bug 788794
 dwrite-font-printing.patch: bug 468568; don't substitute a GDI font for a DWrite font if the name tables aren't equal
 d2d-gradient-ensure-stops.patch: bug 792903, ensure we don't set num_stops to 0
 setlcdfilter_in_tree.patch: bug 790139; force cairo to use FT_Library_SetLcdFilter from our in tree library rather than picking it up from the system
 dwrite-font-match-robustness.patch: bug 717178, don't crash when _name_tables_match is passed a nil scaled-font
 handle-multi-path-clip.patch: bug 813124, handle multiple clip paths correctly
 win32-gdi-font-cache.patch: Bug 717178, cache GDI font faces to reduce usage of GDI resources
 win32-gdi-font-cache-no-HFONT.patch: Bug 717178, don't cache GDI font faces when an HFONT belonging to the caller is passed in
 fix-win32-font-assertion.patch: Bug 838617, fix assertion from bug 717178 that was in the wrong place
 xlib-flush-glyphs.patch: bug 839745, flush glyphs when necessary
 dasharray-zero-gap.patch: bug 885585, ensure strokes get painted when the gaps in a dash array are all zero length
 cairo-mask-extends-bug.patch: bug 918671, sometimes when building a mask we wouldn't clear it properly. This is fixed in cairo 1.12
 ft-no-subpixel-if-surface-disables.patch: bug 929451, don't use subpixel aa for ft fonts on surfaces that don't support 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
 pixman-limits.patch: include limits.h for SIZE_MAX
 pixman-lowres-interp.patch: Use lower quality interpolation for more speed.
 pixman-bilinear-fastpath.patch: Bilinear fast paths for non-neon
 pixman-16-bit-pipeline.patch: 16 bit pipeline for dithering
 pixman-dither.patch: Add dithering of 16 bit gradients
 quartz-support-color-emoji-font.patch: support Apple Color Emoji font in cairo-quartz backend
 use-show-text-glyphs-if-glyph-path-fails.patch: fall back to show_text_glyphs even at huge sizes if scaled_font_glyph_path didn't work
 pixman-enable-altivec-acceleration.patch: enable building the altivec acceleration
 win32-d3dsurface9.patch: Create a win32 d3d9 surface to support LockRect
 win32-avoid-extend-pad-fallback: Avoid falling back to pixman when using EXTEND_PAD
 ==== disable printing patch ====
 disable-printing.patch:  allows us to use NS_PRINTING to disable printing.
 ==== cairo clamp bounday patch ====
 cairo-clamp-boundary.patch: don't call pixman_fill with negative starts or negative sizes

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gfx/cairo/README@97036ab72558 (annotated)

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