This is a mega-patch that has the advantage that the entire test suite
passes both immediately before and immediately after this commit.
The disadvantage of the mega-patch is that it does not reflect the
development history of the device-offset branch, (with its various
fumblings and flailings). To capture that history, we will next merge
in that branch.
If we find a glyph image of a format that is different from the font's
format, then we use a temporary image and convert to the font's
format.
This provides a simple fix for the crash identified in bug #4705:
crash at XRenderAddGlyphs
https://bugs.freedesktop.org/show_bug.cgi?id=4705
A later improvement would guarantee that the "font's format" was
carefully chosen to be able to contain all glyphs in the font without
information loss.
Bogus fix; misunderstood the relationship between the font bearings
and the computed device offsets. Real fix on my device offsets branch.
This reverts 49b4fe10d0 commit.
cairo-ft-font was being naughty and storing glyph bearings in the
surface device_[xy]_offset fields -- this had no effect previously,
because _cairo_surface_composite ignored those fields, but once it
starts handling device offsets itself, this causes ft text rendering
to break.
Track changes in surface backend from fill_path to fill.
Track the new canonical argument naming and ordering for the 5 drawing operations.
Move various stroke style settings into new cairo_stroke_style_t.
Drop NULL fill_path backend function which no longer exists.
Split CARIO_EXTEND_DEFAULT to indicate defaults for surfaces and gradients. The default for gradients is still the NEAREST beaviour.
Support the NEAREST mode, change NONE to be TRANSPARENT.
Update the extend mode code to use the pixman support.
Handle NEAREST, note that support for NONE is not yet handled for gradients.
Add a check for NEAREST but don't do anything useful.
Add a check for NEAREST but don't do anything useful.
Update a comment about the extend support in the image backend.
reviewed by: davidr, cworth, otaylor
Replace cairo cache implementation (this code from cworth)
No more global glyph cache to clean up
Store glyphs in new per-scaled font caches which hold user-space metrics and device space bounding boxes
Refactor glyph drawing APIs so that the surface API is invoked directly from the gstate code.
Add path creation/destruction routines (to hold glyph paths)
New implementation of scaled fonts which uses per-scaled_font caches for glyphs and keeps user-space metrics, device-space bboxes along with glyph images and/or glyph paths.
Adapt to new scaled font API changes.
New cache and scaled_font APIs
Repond to bug fix in metrics computation for glyphs where y values were rounded up instead of down because of a sign difference between cairo and FreeType.
Reviewed by: otaylor, cworth
CLEAR and SOURCE are now bounded.
Assert that SOURCE and CLEAR aren't passed to these functions.
Assert that SOURCE and CLEAR aren't passed to these functions when there is a mask.
Do fixups for SOURCE and CLEAR as well as unbounded operators, since in the absence of a mask, we need SOURCE to work correctly (don't care about CLEAR)
_cairo_ft_font_show_glyphs) Consistently use CLEAR/TRANSPARENT (source doesn't matter) rather than SOURCE/TRANSPARENT when clearing rectangles.
src/cairo-xlib-surface.c src/cairo-surface.c: Use IN rather than SOURCE as an example of an unbounded operator in docs.
Remove CLEAR/SOURCE columns since they are no longer unbounded.
test/operator-clear.c test/operator-source Makefile.am: Add targetted tests of CLEAR/SOURCE.
src/cairo-clip.c src/cairo-gstate.c: Use them.
Move code to fill a pixman_region16_t to here.
Document.
Use _cairo_surface_fill_region().
Add a return status, use regions to simplify.
src/cairoint.h
Handle the return value from _cairo_surface_composite_fixup_unbounded().
src/cairo-surface.c src/cairoint.h (_cairo_surface_composite_shape_fixup_unbounded): Add a variant of _cairo_surface_composite_fixup_unbounded() to avoid creating a dummy cairo_surface_attributes_t.
Use _cairo_surface_composite_shape_fixup_unbounded().
Call _cairo_surface_composite_shape_fixup_unbounded(), since the source might still be restricted, even though the mask is unbounded.
Restore the rectangle optizations when drawing with unbounded operators by adding a clear for the extra area after drawing the rectangles.
Store the antialiasing mode in the gstate and pass it to the backend for trapezoid rendering and for clipping.
Pass the antialiasing parameter down to the backend where appropriate.
Pass the antialiasing parameter down to the backend where appropriate.
Add support for A1 format trapezoid rendering, and remove the _create_mask_image function, creating a temporary image from memory we allocate and clear.
Support A1 masks to disable antialiasing using the RENDER extension when requested.
Support A1 masks to disable antialiasing using the RENDER extension when requested.
Blindly pass through the antialising parameter.
Add the antialiasing parameter but don't support it.
Add a test case and a reference image from the latest libpixman.
Add the new antialiasing disabling API to the docs.
Update progress on a parameter to disable antialiasing.
reviewed by: cworth, otaylor
cairoint.h: Add a helper function to take clearing areas that are outside the source/mask but are cleared by unbounded operations.
src/cairo-xlib-surface.c (_cairo_xlib_surface_composite): Use _cairo_surface_composite_fixup_unbounded() as needed.
src/cairo-image-surface.c src/cairint.h: Keep track of whether the surface has a clip or not ... we need this for determining when we can bypass an intermediate mask for composite_trapezoids().
Create an intermediate mask of the right size with pixman_add_trapezoids() and composite that.
When rendering with an unbounded operator, create the intermediate mask ourselves and render with ADD to that, then composite the result.
Create an intermediate surface the size of the extents, render the glyphs to that then composite the results.
Add the size of the glyph
Compute the size of the glyph mask, then use _cairo_surface_composite_fixup_unbounded().
Use the right mask format. (Unrelated bugfix)
New function taking a drawing function as a parameter to encapsulate shared logic between compositing trapezoid, glyphs, and masks.
Use _cairo_gstate_clip_and_composite(). Also fix extents computations for unbounded operators.
src/cairo-clip.c src/cairo-clip-private.h (_cairo_clip_combine_to_surface): Add the destination as an extra parameter to allow combining to an intermediate surface.
tests/unbounded-operator.c tests/Makefile.am: Add a test for the operation of the 6 unbounded operators against different shapes.
tests/clip-operator.c tests/Makefile.am: Add a test that tests surface clipping with different shapes against all the operators.
Make use OVER like the name and description. With fixed semantics, SOURCE does something different.
New function to reset all static data (eg. caches) to their initial state.
Fix check-valgrind target to depend on the 'all' target.
Add check for a new, proposed, XrmFinalize function.
Add cairo-debug.c.
Move the definition of CAIRO_BEGIN_DECLS to cairo-features.h so that it can be shared between public header files, and so that it doesn't clutter cairo.h
Implement reset_static_data in all modules as required.
Call cairo_debug_reset_static_data and FcFini so that we can have all tests be valgrind-clean with respect to memory leaks and still-reachable data.
_cairo_path_data_create_in_error _cairo_pattern_create_in_error _cairo_surface_create_in_error
Don't bother with extra check of other->status to anticipate and try to prevent cairo_surface_create_similar from returning through cairo_surface_create_in_error.
Just return &_cairo_surface|pattern|path_nil rather than _cairo_surface|pattern|path_create_in_error.
After checking surface->status from a cairo_<foo>_surface_create function, just return CAIRO_STATUS_NO_MEMORY since that's the only error we'll get from one of these create functions.
Remove unnecessary check for gstate == NULL;
Fix old check for image == NULL instead of image->base.status.
Add missing check of surface->image_base.status after creating surface->image.
Add missing check of surface->base.status after creating surface.
Change functions to return type of void:
cairo_scaled_font_extents cairo_surface_finish
Add new functions to query object status:
cairo_scaled_font_status cairo_surface_status
Implementation of new error handling scheme for cairo_surface_t and cairo_scaled_font_t.
Track change in return value of cairo_surface_finish.
src/cairo-font.c src/cairo.h src/cairoint.h: Add a cairo_font_options_t object to cairo_scaled_font_create().
src/cairo-surface.c src/cairoint.h: Add virtualized cairo_surface_get_font_options() to get the font options for a surface.
Adapt to cairo_scaled_font_create() change.
Add an implementation of get_font_options() that turns off metrics hinting.
src/cairo-xlib-screen.c src/cairo-xlib-private.h: Add a "screen info" structure that holds (for now) information about the default font options for the screen.
Implement get_font_options()
src/cairo-ft-font.c src/cairo-ft.h: Add functions to apply a cairo_font_options_t to a FcPattern or get the load flags for a cairo_font_options_t.
Adapt to font options additions. Add support for non-antialiased rendering of scalable fonts. Add support for turning off metrics hinting.
Adapt to font options additions.
doc/public/Makefile.am doc/public/cairo-sections.txt: Update.
reviewed by: cworth
cairo_xlib_surface_create_with_xrender_format cairo_xlib_surface_create_for_bitmap
Required to correctly identify when two Xlib surfaces are compatible with Core and Render rendering requests.
cairo_xlib_surface_create can determine the screen given the required Visual *
reviewed by: otaylor
