diff options
Diffstat (limited to 'src/gallium/state_trackers/egl_g3d/x11/x11_screen.c')
-rw-r--r-- | src/gallium/state_trackers/egl_g3d/x11/x11_screen.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/egl_g3d/x11/x11_screen.c b/src/gallium/state_trackers/egl_g3d/x11/x11_screen.c index 1e98943242..4d68a88d2e 100644 --- a/src/gallium/state_trackers/egl_g3d/x11/x11_screen.c +++ b/src/gallium/state_trackers/egl_g3d/x11/x11_screen.c @@ -30,6 +30,7 @@ #include <X11/extensions/XShm.h> #include "util/u_memory.h" #include "util/u_math.h" +#include "util/u_format.h" #include "xf86drm.h" #include "egllog.h" @@ -50,6 +51,10 @@ struct x11_screen { XVisualInfo *visuals; int num_visuals; + + /* cached values for x11_drawable_get_depth */ + Drawable last_drawable; + unsigned int last_depth; }; @@ -351,6 +356,37 @@ x11_drawable_get_buffers(struct x11_screen *xscr, Drawable drawable, } /** + * Return the depth of a drawable. + * + * Unlike other drawable functions, the drawable needs not be a DRI2 drawable. + */ +uint +x11_drawable_get_depth(struct x11_screen *xscr, Drawable drawable) +{ + unsigned int depth; + + if (drawable != xscr->last_drawable) { + Window root; + int x, y; + unsigned int w, h, border; + Status ok; + + ok = XGetGeometry(xscr->dpy, drawable, &root, + &x, &y, &w, &h, &border, &depth); + if (!ok) + depth = 0; + + xscr->last_drawable = drawable; + xscr->last_depth = depth; + } + else { + depth = xscr->last_depth; + } + + return depth; +} + +/** * Create a mode list of the given size. */ __GLcontextModes * |