diff options
author | Chia-I Wu <olvaffe@gmail.com> | 2010-01-20 15:52:50 +0800 |
---|---|---|
committer | Chia-I Wu <olvaffe@gmail.com> | 2010-01-20 18:15:26 +0800 |
commit | 11f4360f2e915f236558da22efe5bdabd81446f3 (patch) | |
tree | 8fdd0a0b5cf22e28ed68de3fcd3e7302a3a1692c /src/gallium/state_trackers/egl_g3d/x11/native_x11.c | |
parent | c5766c4ae39b4190965abd65eaf67b478a9ad028 (diff) |
st/egl_g3d: Add support for probe to native displays.
The functions can be used to check if a display is supported without
creating a struct native_display. It uses a probe object that can be
shared across drivers.
Diffstat (limited to 'src/gallium/state_trackers/egl_g3d/x11/native_x11.c')
-rw-r--r-- | src/gallium/state_trackers/egl_g3d/x11/native_x11.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/egl_g3d/x11/native_x11.c b/src/gallium/state_trackers/egl_g3d/x11/native_x11.c index 583ce3d329..695ab88010 100644 --- a/src/gallium/state_trackers/egl_g3d/x11/native_x11.c +++ b/src/gallium/state_trackers/egl_g3d/x11/native_x11.c @@ -24,13 +24,89 @@ #include <string.h> #include "util/u_debug.h" +#include "util/u_memory.h" #include "state_tracker/drm_api.h" #include "egllog.h" #include "native_x11.h" +#include "x11_screen.h" + +#define X11_PROBE_MAGIC 0x11980BE /* "X11PROBE" */ static struct drm_api *api; +static void +x11_probe_destroy(struct native_probe *nprobe) +{ + if (nprobe->data) + free(nprobe->data); + free(nprobe); +} + +struct native_probe * +native_create_probe(EGLNativeDisplayType dpy) +{ + struct native_probe *nprobe; + struct x11_screen *xscr; + int scr; + const char *driver_name = NULL; + Display *xdpy; + + nprobe = CALLOC_STRUCT(native_probe); + if (!nprobe) + return NULL; + + xdpy = dpy; + if (!xdpy) { + xdpy = XOpenDisplay(NULL); + if (!xdpy) { + free(nprobe); + return NULL; + } + } + + scr = DefaultScreen(xdpy); + xscr = x11_screen_create(xdpy, scr); + if (xscr) { + if (x11_screen_support(xscr, X11_SCREEN_EXTENSION_DRI2)) { + driver_name = x11_screen_probe_dri2(xscr); + nprobe->data = strdup(driver_name); + } + + x11_screen_destroy(xscr); + } + + if (xdpy != dpy) + XCloseDisplay(xdpy); + + nprobe->magic = X11_PROBE_MAGIC; + nprobe->display = dpy; + + nprobe->destroy = x11_probe_destroy; + + return nprobe; +} + +enum native_probe_result +native_get_probe_result(struct native_probe *nprobe) +{ + if (!nprobe || nprobe->magic != X11_PROBE_MAGIC) + return NATIVE_PROBE_UNKNOWN; + + if (!api) + api = drm_api_create(); + + /* this is a software driver */ + if (!api) + return NATIVE_PROBE_SUPPORTED; + + /* the display does not support DRI2 or the driver mismatches */ + if (!nprobe->data || strcmp(api->name, (const char *) nprobe->data) != 0) + return NATIVE_PROBE_FALLBACK; + + return NATIVE_PROBE_EXACT; +} + const char * native_get_name(void) { |