Also in this patch is a change to the xlib surface that creates two separate Pictures, one for source and one for destination operands which separates the source clipping from destination clipping. Cairo now specifies that sources are never clipped by any clipping applied to them as destinations.
Move cairo_clip_t (renamed from cairo_clip_rec_t) from cairoint.h to cairo-gstate-private.h. Eliminate stack of clip state from surfaces. Add new surface clipping API.
Manage clip objects entirely within the gstate, loading the whole thing into the surface just before drawing.
Source surfaces need not have clipping modified as the surface interface now specifies that source surfaces are always unclipped.
Eliminate nested clipping contexts, leaving clip management entirely to the gstate. Create new clip API for the gstate which uses per-surface serial numbers to match gstate clipping against current surface clipping values.
Surfaces no longer track clipping regions at all, so the old _cairo_surface_get_clip_extents has been replaced with _cairo_surface_get_extents. For PDF/PS surfaces, this function is expected to return a rectangle covering the entire fixed point coordinate space to leave rendering unclipped by the surface.
Region clipping capability is now signalled by a non-NULL function pointer in set_clip_region.
Each surface now contains two Pictures, one for source and one for destination operands so that source operands are never clipped by destination clipping.
CAIRO_STATUS_BAD_NESTING removed
self-copy now passes (Xlib only, until libpixman changes land)
reviewed by: krh, otaylor, cworth
Add cairo_xlib_surface_create_with_render_format.
Reduce Xlib constructors down to two simple forms. Add width, height to constructors and eliminate any synchronous size queries from the implementation.
Update to match new cairo_xlib_surface_t create functions.
src/cairo-xlib-surface.c src/cairo-xlib-test.h Makefile.am: add cairo_test_xlib_disable_render() to turn off RENDER for tests.
Test various different types of Xlib surface creation.
Remove left-over include of Xrender.h.
cairo_copy cairo_get_path cairo_get_path_flat cairo_matrix_create cairo_matrix_destroy cairo_matrix_copy cairo_matrix_get_affine cairo_surface_set_repeat cairo_surface_set_matrix cairo_surface_get_matrix cairo_surface_set_filter cairo_surface_get_filter
Also, eliminate all support for compiling against, or running with old, deprecated names for functions.
Deal with all of the removals.
Add new get_extents function to the surface backend interface.
Add function to query current clip_extents.
Implement the new get_extents function for each backend.
Save the clip extents from set_clip_region and implement _cairo_surface_get_clip_extents.
Abstract away the evil XGetGeometry roundtrip in _cairo_xlib_surface_get_size.
Rewrite a couple of tests to call cairo_paint.
cairo_set_pattern -> cairo_set_source cairo_get_pattern -> cairo_get_source cairo_set_rgb_color -> cairo_set_source_rgb
-> cairo_set_source_rgba cairo_set_alpha -> cairo_get_alpha ->
Note that we'll likely want to add cairo_set_source_surface.
Add _cairo_stock_color helper function. Improve some interfaces:
_cairo_color_init _cairo_color_init_rgb _cairo_color_set_rgb -> _cairo_color_init_rgba _cairo_color_set_alpha _cairo_color_multiply_alpha
_cairo_color_get_rgb -> _cairo_color_get_rbga _cairo_color_get_rgba_premultiplied
Add cairo_stock_t and some helper macros:
CAIRO_COLOR_WHITE CAIRO_COLOR_BLACK CAIRO_COLOR_TRANSPARENT
Fix cairo_pattern_t by eliminating pattern->alpha. Fix cairo_solid_pattern_t to use cairo_color_t rather than three doubles.
Track removal of pattern->alpha, simplifying the code considerably
Track _cairo_color interface changes. Remove gstate->alpha. Propagate down set_source renamings.
cairo_pattern_add_color_stop -> cairo_pattern_add_color_stop_rgba
and add:
cairo_pattern_add_color_stop_rgb
Remove pattern->alpha, simplifying the code considerably.
Track pattern and color interface changes.
Add const where appropriate on cairo_color_t*.
Add private type inspection predicate. (cairo_xlib_surface_set_size): Add check for surface type mismatch, (no useful error reporting yet, though).
Note coverage as en expected failure.
Improve line wrap on expected failure messages.
Port all tests to new cairo_set_source interfaces.
src/cairoint.h src/cairo-font.c src/cairo-gstate.c: Add "cairo_simple_font_face" for family/weight/slant and use it to implement font naming for the toy API.
src/cairo-ft.h src/cairo-ft-font.c cairo-win32.h cairo-win32-font.c: Switch the FreeType and Win32 backends over to using cairo_font_face_t.
src/cairo.h src/cairo-font.c src/cairo-ft-font.c src/cairo-win32-font.c: Pass in font matrix and CTM separately rather than as a composite scale when creating fonts; allows removing font_matrix argument to metrics functions.
src/cairoint.h src/cairo-font.c src/cairo-ft-font.c src/cairo-win32-font.c: Remove cairo_font_scale_t type, just use cairo_matrix_t and ignore translations.
src/cairo-ft.h src/cairo-ft-font.c: Remove cairo_ft_font_get_pattern() -- it can't work for all FreeType backend fonts and doesn't seem particularly useful.
Rename cairo_font_get_extents() to cairo_font_extents()
split font functions into a separate section.
Fix locking order problem.
Add caches for simple font faces and from cairo_font_face_t to cairo_scaled_font_t.
src/cairo.h src/cairoint.h src/cairo-font.c src/cairo-win32-font.c src/cairo-ft-font.c src/cairo-gstate.c src/cairo-gstate-private.h: Rename cairo_font_t to cairo_scaled_font_t.
Add new function to return current matrix: cairo_get_matrix
Deprecate the following functions (in documentation): cairo_matrix_create cairo_matrix_destroy cairo_matrix_get_affine
Rename: cairo_matrix_set_affine -> cairo_matrix_init cairo_matrix_set_identity -> cairo_matrix_init_identity
Add other new matrix initialization functions: cairo_matrix_init_translate cairo_matrix_init_scale cairo_matrix_init_rotate
Change return type of almost all cairo_matrix functions from cairo_status_t to void.
Track changes to cairo_matrix_t interface.
Add a test case showing the same path drawn under various transforms, (including skews set directly by initializing a cairo_matrix_t).
Propagate the unsigned char* change down the stack.
Add cast since XImage uses char* rather than unsigned char*.
Fix memory leak of image data.
Switch to use cairo_surface_write_png rather than a custom write_png_argb32.
Add test to exercise the cairo_image_surface_create_for_png function.
Remove gstate->pixels_per inch. Change default matrix to always be the identity matrix.
Drop pixels_per_inch function from surface backend interface as it is no longer needed.
cast to quiet new gcc-4 warnings.
Initialize variables to quiet new gcc-4 warnings.
Use unsigned char* as expected by freetype, libpng, Xlib, and zlib.
Propagate unsigned char* down from cairo_text_extents.
src/cairo.c src/cairo_matrix.c src/cairo_ft_font.c src/cairo_ps_surface.c src/cairo_quartz_surface.c src/cairo_win32_font.c src/cairo_win32_surface.c src/cairo_xlib_surface.c: Cairo is only capitalized at the beginning of sentences.
Add new errors, CAIRO_STATUS_WRITE_ERROR and CAIRO_STATUS_SURFACE_FINISHED, add cairo_surface_finish() prototype, add cairo_write_func_t.
Add strings for new errors, documentation fix.
Rename surface destroy functions to finish and change them to not free the surface.
Change PDF surface constructors to take a write function in the general case and add stdio convenience constructors. Change destroy function to finish for cairo_pdf_surface. Change implementation to use cairo_output_stream_t functions for output.
Use _cairo_surface_show_glyphs instead of calling function pointer directly.
Add prototypes for cairo output stream functions, rename destroy to finish in cairo_surface_backend_t and add finished flag to cairo_surface_t.
Add cairo_surface_finish() and call it from cairo_surface_destroy(). Check the finished flag in cairo_surface_t in functions that change the surface.
src/cairo-xlib.h src/cairo_xlib_surface.c: Add cairo_xlib_surface_set_device_offset().
Rewrite for clarity and efficiency.
Use a temporary pixmap to avoid possible BadMatch when fetch from windows.
src/cairo.[ch] src/cairo-xlib.h: Fix some parameter names for the docs.
Update
src/cairoint.h src/cairo_pattern.c: Replace _cairo_pattern_get_surface() with a _cairo_pattern_begin_draw()/_cairo_pattern_end_draw() pair.
Save the format for which an image is created so we can access it later. (Needed for the _cairo_xlib_surface_clone_similar())
src/cairoint.h src/cairo_image_surface.c: Add _cairo_surface_is_image().
Add CAIRO_OK(status) to check for CAIRO_STATUS_SUCCESS.
In the absence of of RENDER, make cairo_xlib_surface_create_similar() return an image surface.
Don't try to use RENDER to composite glyphs in the absence of the RENDER extension.
Use _cairo_pattern_get_surface instead of _cairo_pattern_get_image.
Remove use of _cairo_xlib_surface_clone_similar since _cairo_pattern_get_surface always gives us an xlib surface for the pattern. Clean up error handling code in _cairo_xlib_surface_show_glyphs.
Add missing cairo_surface_destroy and tidy up offset calculations as suggested by Owen.
Simplify code for computing the extents of clipping area, by introducing a couple of cairo_rectangle_t functions.
The patch removes the create_surface function pointer from the surface vtable and moves much of that code into a couple of helper functions. The composite, compsite_trapezoids, and show_glyphs backend functions are updated to take a cairo_pattern_t instead of a surface as the source.
Change these functions to not create a surface for the pattern and just pass the pattern down to the backend functions.
New function to translate a set of trapezoids.
Break out the code to adjust and restore surface transformation and repeat settings into _cairo_pattern_prepare_surface and _cairo_pattern_restore_surface.
Split cairo_pattern_create_for_surface into an init function and a create function.
Utility functions to create a surface from a pattern.
Update these backends to work with the new pattern API. Glitz work by David Reveman.
Update these to pass through the new set of args.
Update this reference image as we now render it correctly.
src/cairoint.h src/cairo_font.c src/cairo_ft_font.c src/cairo_xlib_surface.c src/cairo_pdf_surface.c src/cairo_gstate.c src/cairo.c: Switch many internal methods from handling cairo_unscaled_font_t and cairo_font_scale_t pairs to handling cairo_font_t.
src/cairo-ft-private.h src/cairo_ft_fontc: Add some internal interfaces for use by the FreeType backend.
Clear the gstate's current font when the transform or target surface changes.
src/cairo.h src/cairo_ft_font.c: Rename cairo_ft_font_pattern to cairo_ft_font_get_pattern().
src/cairo.h src/cairo_ft_font.c: Make cairo_ft_font_create() and cairo_ft_font_create_for_ft_face() take a font scale; make the latter take load_flags for FT_Load_Glyph() as well. Change cairo_ft_font_face() to Xft-style cairo_ft_font_lock_face, cairo_ft_font_unlock_face.
Remove the name/slant/weight=>unscaled font cache, it didn't work with the new cairo_font_t setup. If it turns out to be needed, it can be added back in some other form.
src/cairoint.h src/cairo_font.c: Add a 'flags' field to cairo_glyph_cache_key_t, we use it for load flags with freetype backend.
Switch the caching to be from resolved fontconfig pattern => file; keep only a fixed number of FT_Face objects open at once, similar to FreeType.
src/cairo_gstate.c src/cairoint.h: Add public cairo_font_glyph_extents, use it to implement _cairo_gstate_glyph_extents().
Add refcounting for glyph cache elements; there was an bug where elements got ejected from the cache and freed before they could be used.
src/cairoint.h src/cairo_cache.c (_cairo_cache_random_entry()) New function to return a random entry in the cache matching a predicate; reuse the internals for the previous _random_live_entry().
src/cairoint.h src/cairo_cache.c (_cairo_cache_lookup()): Add an optional created_entry return value.
src/cairo_ft_font.c src/cairo_xlib_surface.c: Adapt to _cairo_cache_lookup() change.
Support max_memory == 0 to indicate an unbounded cache.
src/cairoint.h src/cairo_cache.c (_cairo_cache_remove()): Add a function to manually remove entries from the cache.
Update for changes, document cairo_matrix_t, cairo_glyph_t, etc.
src/cairo.h src/cairo-atsui.h src/cairo-ft.h src/cairo-glitz.h src/cairo-pdf.h src/cairo-png.h src/cairo-ps.h src/cairo-quartz.h src/cairo-xcb.h src/cairo-xlib.h: Add CAIRO_BEGIN/END_DECLS for extern "C", use it on all public headers. Move header guards outermost.
Fix encoding.
Insert new includes for backend-specific header files.
Remove redundant include of cairo-features.h.
Rename header-exclusion macro from _CAIRO_H_ to CAIRO_H. Remove platform-specific grubbing for cairo-features.h and pixman.h in odd places.
Remove all backend-specific prototypes, (as they are now in their own header files).
Remove deprecated
Remove printf.
Convert to utf-8. Use the proper name for multiple-header exclusion (CAIRO_FEATURES_H). Track rename of FREETYPE_FONT_FEATURE to FT_FONT_FEATURE.
Split cairo.h up into cairo.h, cairo-ft.h, cairo-glitz.h, cairo-pdf.h, cairo-png.h, cairo-ps.h, cairo-xcb.h, cairo-xlib.h. Update for rename of cairo_wideint.h to cairo-wideint.h.
Rename CAIRO_HAS_FREETYPE_FONT to CAIRO_HAS_FT_FONT, (to match cairo_ft_font functions and cairo-ft.h).
Update for public header files now in /cairo.
Change type of 'surface' argument in show_glyphs to void * as it is for all other surface virtual functions.
Update accordingly.
Add check for endianess.
Fix bug in array growing loop. (_cairo_array_append): Accept NULL for elements argument, in which case we just allocate space in the array.
Remove cache memory usage assertions as single objects can be larger than the cache size
Decompose font matrix transformations into a couple of helper routines. Return all metrics in font space.
Eliminate compiler warning
Expect glyph metrics to be in font space. Compute text extents by fetching one glyph metric at a time, transforming to user space and computing the overall bounding box.
use 'sincos' where available. Scale factors now ensure the non-scale transform is area preserving. Scale factors requires another parameter to mark the fixed axis.
Change license to LGPL Mark int32x32_64_mul as broken (which it still is)
Ensure each glyph is located as close to the specified position as possible
interface change to _cairo_matrix_compute_scale_factors
Return early if we found a rectangular clip at all, not just in error case.
Give render glyphset entry the negative bbox offsets it wants, not the bearings.
