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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. |
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| doc | ||
| pixman | ||
| src | ||
| test | ||
| util | ||
| .cvsignore | ||
| acinclude.m4 | ||
| AUTHORS | ||
| autogen.sh | ||
| BUGS | ||
| cairo.pc.in | ||
| ChangeLog | ||
| CODING_STYLE | ||
| configure.in | ||
| COPYING | ||
| COPYING-LGPL-2.1 | ||
| COPYING-MPL-1.1 | ||
| gtk-doc.make | ||
| INSTALL | ||
| Makefile.am | ||
| NEWS | ||
| PORTING_GUIDE | ||
| README | ||
| RELEASING | ||
| ROADMAP | ||
| TODO | ||
Cairo - Multi-platform 2D graphics library http://cairographics.org Compiling --------- See the INSTALL document for build instructions. Description ----------- Cairo is a vector graphics library with cross-device output support. Currently supported output targets include the X Window System and in-memory image buffers. PostScript and PDF file output is planned. Cairo is designed to produce identical output on all output media while taking advantage of display hardware acceleration when available (eg. through the X Render Extension). Cairo provides a stateful user-level API with capabilities similar to the PDF 1.4 imaging model. Cairo provides operations including stroking and filling Bezier cubic splines, transforming and compositing translucent images, and antialiased text rendering. Cairo was once named Xr, (or Xr/Xc), so if you came looking for that software, you've found it. Dependencies ------------ Cairo currently requires the following supporting libraries: libpixman Xft2 fontconfig freetype2 Documentation ------------- There's not much documentation yet apart from the cairo.h header file. We'll be correcting that shortly. In the meantime, the cairo-demo module in CVS provides a few example programs using cairo. These may be helpful to a programmer just beginning with cairo. Also, familiarity with the PostScript imaging model will help in understanding cairo. History ------- Cairo was originally developed by Carl Worth <cworth@cworth.org> and Keith Packard <keithp@keithp.com>. Many thanks are due to Lyle Ramshaw without whose patient help our ignorance would be much more apparent. Mailing List ------------ If you have trouble with cairo or you have some ideas for how it could be improved, please feel free to send a message to cairo@cairographics.org Cairo is still under active development and all discussion happens on that list. So if you want to lurk or, (even better), take part in the development, take a look. Subscription information and archives are available: http://cairographics.org/cgi-bin/mailman/listinfo/cairo