st/egl: Introduce native_platform.

Move native_get_name, native_create_probe, native_get_probe_result, and
native_create_display into struct native_platform, and add
native_get_platform to get a handle to the struct.

4 files changed, 56 insertions, 34 deletions

diff --git a/src/gallium/state_trackers/egl/common/egl_g3d.c b/src/gallium/state_trackers/egl/common/egl_g3d.c
index b4ca861efe..6b54ee365c 100644
--- a/src/gallium/state_trackers/egl/common/egl_g3d.c
+++ b/src/gallium/state_trackers/egl/common/egl_g3d.c
@@ -63,25 +63,44 @@ egl_g3d_init_st(_EGLDriver *drv)
 }
 
 /**
- * Get the probe object of the display.
+ * Get the native platform.
+ */
+static const struct native_platform *
+egl_g3d_get_platform(_EGLDriver *drv)
+{
+   struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
+
+   if (!gdrv->platform)
+      gdrv->platform = native_get_platform();
+
+   return gdrv->platform;
+}
+
+/**
+ * Get the probe result of the display.
  *
  * Note that this function may be called before the display is initialized.
  */
-static struct native_probe *
-egl_g3d_get_probe(_EGLDriver *drv, _EGLDisplay *dpy)
+static enum native_probe_result
+egl_g3d_get_probe_result(_EGLDriver *drv, _EGLDisplay *dpy)
 {
    struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
    struct native_probe *nprobe;
+   const struct native_platform *nplat;
+
+   nplat = egl_g3d_get_platform(drv);
+   if (!nplat || !nplat->create_probe)
+      return NATIVE_PROBE_UNKNOWN;
 
    nprobe = (struct native_probe *) _eglGetProbeCache(gdrv->probe_key);
    if (!nprobe || nprobe->display != dpy->PlatformDisplay) {
       if (nprobe)
          nprobe->destroy(nprobe);
-      nprobe = native_create_probe(dpy->PlatformDisplay);
+      nprobe = nplat->create_probe(dpy->PlatformDisplay);
       _eglSetProbeCache(gdrv->probe_key, (void *) nprobe);
    }
 
-   return nprobe;
+   return nplat->get_probe_result(nprobe);
 }
 
 /**
@@ -460,10 +479,15 @@ egl_g3d_initialize(_EGLDriver *drv, _EGLDisplay *dpy,
 {
    struct egl_g3d_driver *gdrv = egl_g3d_driver(drv);
    struct egl_g3d_display *gdpy;
+   const struct native_platform *nplat;
 
    /* the probe object is unlikely to be needed again */
    egl_g3d_destroy_probe(drv, dpy);
 
+   nplat = egl_g3d_get_platform(drv);
+   if (!nplat)
+      return EGL_FALSE;
+
    gdpy = CALLOC_STRUCT(egl_g3d_display);
    if (!gdpy) {
       _eglError(EGL_BAD_ALLOC, "eglInitialize");
@@ -471,7 +495,8 @@ egl_g3d_initialize(_EGLDriver *drv, _EGLDisplay *dpy,
    }
    dpy->DriverData = gdpy;
 
-   gdpy->native = native_create_display(dpy->PlatformDisplay,
+   _eglLog(_EGL_INFO, "use %s for display %p", nplat->name, dpy->PlatformDisplay);
+   gdpy->native = nplat->create_display(dpy->PlatformDisplay,
          &egl_g3d_native_event_handler);
    if (!gdpy->native) {
       _eglError(EGL_NOT_INITIALIZED, "eglInitialize(no usable display)");
@@ -543,12 +568,10 @@ egl_g3d_get_proc_address(_EGLDriver *drv, const char *procname)
 static EGLint
 egl_g3d_probe(_EGLDriver *drv, _EGLDisplay *dpy)
 {
-   struct native_probe *nprobe;
    enum native_probe_result res;
    EGLint score;
 
-   nprobe = egl_g3d_get_probe(drv, dpy);
-   res = native_get_probe_result(nprobe);
+   res = egl_g3d_get_probe_result(drv, dpy);
 
    switch (res) {
    case NATIVE_PROBE_UNKNOWN:
@@ -582,12 +605,8 @@ egl_g3d_unload(_EGLDriver *drv)
 _EGLDriver *
 _eglMain(const char *args)
 {
-   static char driver_name[64];
    struct egl_g3d_driver *gdrv;
 
-   util_snprintf(driver_name, sizeof(driver_name),
-         "Gallium/%s", native_get_name());
-
    gdrv = CALLOC_STRUCT(egl_g3d_driver);
    if (!gdrv)
       return NULL;
@@ -597,7 +616,7 @@ _eglMain(const char *args)
    gdrv->base.API.Terminate = egl_g3d_terminate;
    gdrv->base.API.GetProcAddress = egl_g3d_get_proc_address;
 
-   gdrv->base.Name = driver_name;
+   gdrv->base.Name = "Gallium";
    gdrv->base.Probe = egl_g3d_probe;
    gdrv->base.Unload = egl_g3d_unload;
 
diff --git a/src/gallium/state_trackers/egl/common/egl_g3d.h b/src/gallium/state_trackers/egl/common/egl_g3d.h
index d516d8fe03..26043169ff 100644
--- a/src/gallium/state_trackers/egl/common/egl_g3d.h
+++ b/src/gallium/state_trackers/egl/common/egl_g3d.h
@@ -47,6 +47,7 @@ struct egl_g3d_driver {
    struct st_api *stapis[ST_API_COUNT];
    EGLint api_mask;
 
+   const struct native_platform *platform;
    EGLint probe_key;
 };
 
diff --git a/src/gallium/state_trackers/egl/common/native.h b/src/gallium/state_trackers/egl/common/native.h
index 494becb61f..941adfc03f 100644
--- a/src/gallium/state_trackers/egl/common/native.h
+++ b/src/gallium/state_trackers/egl/common/native.h
@@ -207,10 +207,28 @@ native_attachment_mask_test(uint mask, enum native_attachment att)
    return !!(mask & (1 << att));
 }
 
-const char *
-native_get_name(void);
+struct native_platform {
+   const char *name;
 
-struct native_display *
-native_create_display(void *dpy, struct native_event_handler *handler);
+   /**
+    * Return a probe object for the given display.
+    *
+    * Note that the returned object may be cached and used by different native
+    * display modules.  It allows fast probing when multiple modules probe the
+    * same display.
+    */
+   struct native_probe *(*create_probe)(void *dpy);
+
+   /**
+    * Probe the probe object.
+    */
+   enum native_probe_result (*get_probe_result)(struct native_probe *nprobe);
+
+   struct native_display *(*create_display)(void *dpy,
+                                            struct native_event_handler *handler);
+};
+
+const struct native_platform *
+native_get_platform(void);
 
 #endif /* _NATIVE_H_ */
diff --git a/src/gallium/state_trackers/egl/common/native_probe.h b/src/gallium/state_trackers/egl/common/native_probe.h
index 539c4aa70d..c0b7f2a1ff 100644
--- a/src/gallium/state_trackers/egl/common/native_probe.h
+++ b/src/gallium/state_trackers/egl/common/native_probe.h
@@ -49,20 +49,4 @@ struct native_probe {
    void (*destroy)(struct native_probe *nprobe);
 };
 
-/**
- * Return a probe object for the given display.
- *
- * Note that the returned object may be cached and used by different native
- * display modules.  It allows fast probing when multiple modules probe the
- * same display.
- */
-struct native_probe *
-native_create_probe(void *dpy);
-
-/**
- * Probe the probe object.
- */
-enum native_probe_result
-native_get_probe_result(struct native_probe *nprobe);
-
 #endif /* _NATIVE_PROBE_H_ */