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.
mark_dirty will force cairo to set its own clip the next time the cairo clip
is applied after mark_dirty; otherwise we run the risk of cairo's cached
clip and the device clip getting out of sync if any clip-related functions
are used on the native device back-end.
(cherry picked from 1935a28949da8569f924e37714ec19571fa95987 commit)
(cherry picked from ef8b472f0ffab7b8b828d7297c7e454bb22bd5ec commit)
Implement copy_page for paginated surface. Fix show_page to destroy the meta-surface and create a new one.
Change these functions to advertise when they are not supported, so that _cairo_paginated_copy_page can implement things differently depending on whether or not it is personal.
Check return values from _cairo_surface_show/copy_page.
Refine the comment describing this test surface.
Add new test surface for exercising cairo_meta_surface.
Simplify the image and test_fallback targets by not using create_for_data. Allow for NULL cleanup target functions. Add support for the test_meta_surface.
Add _cairo_array_init_snapshot and checks for is_snapshot throughout.
Add a new surface->backend->snapshot function.
Implement _cairo_meta_surface_snapshot and _cairo_meta_surface_acquire/release_source_image. Change _cairo_meta_surface_create to require the width and height in pixels to be used when replaying for purposed of _cairo_meta_surface_aquire_source_image.
Track change in prototype of _cairo_meta_surface_create. Implement _cairo_ps_surface_snapshot by deferring down into _cairo_meta_surface_snapshot.
Remove size for _cairo_meta_surface_create. It is no longer needed now that get_extents is not a required backend function.
Track change in cairo_meta_surface_create no longer requiring a size
Qualify the glyphs argument to backend->show_glyphs as const.
Whitespace style cleanup.
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.
Remove pen_regular field from the gstate.
Move stroke fallback from gstate to surface where it belongs.
Eliminate dependence on cairo_gstate_t object.
Fix to include just cairo-clip-private.h rather than cairo-gstate.private.h.
Move mask fallback from gstate to surface where it belongs.
Temporarily export some previously private cairo_gstate functions, (soon to become private cairo_fallback functions).
Port code to use _init_pattern_with_snapshot rather than _cairo_pattern_init_copy for all source and mask patterns.
New function to create a snapshot copy of a surface (still preliminary---no support for meta-surfaces or any other surface for which acquire_source_surface will fail).
Add new surface->is_snapshot and initialize to FALSE.
Assert that none of these surface-modifying functions are ever called with a snapshot surface.
Reviewed by: keithp, otaylor
Add _cairo_surface_is_meta.
Add antialias to the fill_path meta-surface command.
Add an antialias parameter to the backend fill_path function.
Fix test description.
Reviewed by: keithp
Useful for printer backends where the device coordinate space should be in pixels while the user visible device space is in points.
There is no API to set these values; the backends using this functionality should do that themselves before the first cairo_t is created.
reviewed by: cworth
Don't change the status value if it already holds an error. This avoids destroying "first error" information and also avoids attempting to write read-only data, (eg. from nil objects).
Don't set an error on the same object if it is in an error state to begin with, just return immediately. This is intended to reduce (eventual) error prints to the first cause of an error for any given object, instead of a continual spew.
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.
Rewrite to use new cairo_clip_t functions for manipulating the clip state, change the clip_and_composite_trapezoids call tree to use cairo_clip_t instead of cairo_gstate_t.
Use new cairo_clip_t function to maintain clip state while replaying.
Pass fill rule and tolerance directly, to break gstate dependency.
New function. Set the clip for a surface as specified by the cairo_clip_t.
Move translate_traps() from cairo-gstate.c to here and rename it.
Reviewed by: otaylor
CAIRO_STATUS_NO_MEMORY CAIRO_STATUS_FILE_NOT_FOUND CAIRO_STATUS_READ_ERROR
Add new CAIRO_STATUS_FILE_NOT_FOUND.
Add new _cairo_surface_nil_read_error and _cairo_surface_nil_file_not_found.
Test the new FILE_NOT_FOUND error.
_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.
src/cairo-ft-font.c (cairo_ft_font_face_create_for_pattern): src/cairo-ft-font.c (cairo_ft_font_face_create_for_ft_face): src/cairo-win32-font.c (cairo_win32_font_face_create_for_logfontw): Return _cairo_font_face_nil on out-of-memory.
Check return of _cairo_simple_font_face_create().
Error out if font_face has a status.
Handle a nil surface.
src/cairoint.h src/cairo-ft-font.c: Stop exporting _cairo_scaled_font_nil, since we dont' need it publically any more.
return surface->status not status. (Fixes warning)
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.
