Commit d12c9702 authored by Committed by Owen Taylor
Private function to tell if we have RENDER extension.
Thu Jan 3 22:18:15 2002 Owen Taylor <firstname.lastname@example.org> * gdk/x11/gdkdrawable-x11.c gdk/x11/gdkprivate-x11.h (_gdk_x11_have_render): Private function to tell if we have RENDER extension. * gdk/x11/gdkgc-x11.c (_gdk_x11_gc_get_fg_picture): Return None if we don't have RENDER extension. * gdk/x11/gdkpango-x11.c (gdk_pango_context_get): Don't use Xft unless we have render extension. * gdk/x11/gdkdrawable-x11.c (gdk_x11_drawable_get_picture): Handle missing render extension. * gdk/gdkdraw.c gdk/gdkdrawable.h gdk/gdkpixmap.c gdk/gdkwindow.c gdk/gdkinternals.h: Add a private copy_to_image() virtual function to the GdkDrawable vtable that extends get_image() to allow copying onto existing images. Make the default implementation of get_image() use this so that backends don't have to implement both. Add private wrapper _gdk_drawable_copy_to_image(). * gdk/x11/gdkimage-x11.c gdk/x11/gdkprivate-x11.c gdk/x11/gdkdrawable-x11.c (_gdk_x11_copy_to_image): Implement copy_to_image() semantics, speed up by using ShmPixmaps and XCopyArea when possible, XFlush() after ungrabbing the server, generally redo the logic once again. * gdk/gdkinternals.h gdk/x11/gdkimage-x11.c _gdk_windowing_bits_per_depth(): Function to convert from depth to bits-per-pixel. (We assume only one bpp per depth - X requires this.) * gdk/gdkinternals.h gdk/gdkrgb.c gdk/gdkimage.c: Move the GdkRGB scratch image code into a generic _gdk_image_get_scratch() chunk of code that we can use other places we need scratch images. * gdk/gdkimage.c gdk/x11/gdkimage.c gdk/gdkinternals.h: Add _gdk_image_new_for_depth() as the backend to _gdk_image_new() to allowing creating images with a depth and no visual. * gdk/gdkpixbuf-drawable.c: Fix so that getting parts of images not at 0,0 actually works. * gdk/gdkdrawable.h gdk/gdkinternals.h gdk/gdkdraw.c gdk/gdkwindow.c gdk/gdkpixmap.c gdk/gdkpixbuf-render.c: - Add a new GdkDrawableClass vfunc _draw_pixbuf, and _gdk_draw_pixbuf() [ will be made public later ], to allow backends to accelerate drawing pixbufs. - Move the implementation of gdk_pixbuf_render_to_drawable_alpha() to be the default implementation. - Update docs for gdk_pixbuf_render_to_drawable_alpha(). - Optimize the default implementation by using _gdk_image_copy_to_pixmap() and scratch shared images, and special casing the compositing. * gdk/x11/gdkdrawable-x11.c: Accelerate _gdk_draw_pixbuf() with alpha using the RENDER extension. * gdk/gdkpixbuf-drawable.c (gdk_pixbuf_get_from_drawable): Optimize by _gdk_image_copy_to_pixmap() and scratch images. * tests/testrgb.c: Add test for speed of alpha composition, reduce the number of iterations since alpha composition can be a bit slow. * gdk/x11/gdkimage-x11.c gdk/gdkprivate-x11.h (_gdk_x11_image_get_shm_pixmap): Private function to get a ShmPixmap for an image, if possible.
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