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.

8 files changed, 137 insertions, 107 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_ */
diff --git a/src/gallium/state_trackers/egl/fbdev/native_fbdev.c b/src/gallium/state_trackers/egl/fbdev/native_fbdev.c
index 399c1251ef..ffd32fa46e 100644
--- a/src/gallium/state_trackers/egl/fbdev/native_fbdev.c
+++ b/src/gallium/state_trackers/egl/fbdev/native_fbdev.c
@@ -427,25 +427,7 @@ fbdev_display_create(int fd, struct native_event_handler *event_handler)
    return &fbdpy->base;
 }
 
-struct native_probe *
-native_create_probe(void *dpy)
-{
-   return NULL;
-}
-
-enum native_probe_result
-native_get_probe_result(struct native_probe *nprobe)
-{
-   return NATIVE_PROBE_UNKNOWN;
-}
-
-const char *
-native_get_name(void)
-{
-   return "FBDEV";
-}
-
-struct native_display *
+static struct native_display *
 native_create_display(void *dpy, struct native_event_handler *event_handler)
 {
    struct native_display *ndpy;
@@ -467,3 +449,16 @@ native_create_display(void *dpy, struct native_event_handler *event_handler)
 
    return ndpy;
 }
+
+static const struct native_platform fbdev_platform = {
+   "FBDEV", /* name */
+   NULL, /* create_probe */
+   NULL, /* get_probe_result */
+   native_create_display
+};
+
+const struct native_platform *
+native_get_platform(void)
+{
+   return &fbdev_platform;
+}
diff --git a/src/gallium/state_trackers/egl/gdi/native_gdi.c b/src/gallium/state_trackers/egl/gdi/native_gdi.c
index 56f190de00..ba4ddff232 100644
--- a/src/gallium/state_trackers/egl/gdi/native_gdi.c
+++ b/src/gallium/state_trackers/egl/gdi/native_gdi.c
@@ -366,25 +366,7 @@ gdi_create_display(HDC hDC, struct pipe_screen *screen,
    return &gdpy->base;
 }
 
-struct native_probe *
-native_create_probe(void *dpy)
-{
-   return NULL;
-}
-
-enum native_probe_result
-native_get_probe_result(struct native_probe *nprobe)
-{
-   return NATIVE_PROBE_UNKNOWN;
-}
-
-const char *
-native_get_name(void)
-{
-   return "GDI";
-}
-
-struct native_display *
+static struct native_display *
 native_create_display(void *dpy, struct native_event_handler *event_handler)
 {
    struct sw_winsys *winsys;
@@ -403,3 +385,16 @@ native_create_display(void *dpy, struct native_event_handler *event_handler)
 
    return gdi_create_display((HDC) dpy, screen, event_handler);
 }
+
+static const struct native_platform gdi_platform = {
+   "GDI", /* name */
+   NULL, /* create_probe */
+   NULL, /* get_probe_result */
+   native_create_display
+};
+
+const struct native_platform *
+native_get_platform(void)
+{
+   return &gdi_platform;
+}
diff --git a/src/gallium/state_trackers/egl/kms/native_kms.c b/src/gallium/state_trackers/egl/kms/native_kms.c
index 09a08f32b3..8ee80996a4 100644
--- a/src/gallium/state_trackers/egl/kms/native_kms.c
+++ b/src/gallium/state_trackers/egl/kms/native_kms.c
@@ -768,37 +768,40 @@ kms_create_display(int fd, struct native_event_handler *event_handler)
    return &kdpy->base;
 }
 
-struct native_probe *
-native_create_probe(void *dpy)
+static struct native_display *
+native_create_display(void *dpy, struct native_event_handler *event_handler)
 {
-   return NULL;
-}
+   struct native_display *ndpy;
+   int fd;
 
-enum native_probe_result
-native_get_probe_result(struct native_probe *nprobe)
-{
-   return NATIVE_PROBE_UNKNOWN;
+   /* well, this makes fd 0 being ignored */
+   fd = (dpy) ? (int) pointer_to_intptr(dpy) : -1;
+   ndpy = kms_create_display(fd, event_handler);
+
+   return ndpy;
 }
 
-const char *
-native_get_name(void)
+static void
+kms_init_platform(struct native_platform *nplat)
 {
    static char kms_name[32];
 
+   if (nplat->name)
+      return;
 
    util_snprintf(kms_name, sizeof(kms_name), "KMS/%s", driver_descriptor.name);
 
-   return kms_name;
+   nplat->name = kms_name;
+   nplat->create_probe = NULL;
+   nplat->get_probe_result = NULL;
+   nplat->create_display = native_create_display;
 }
 
-struct native_display *
-native_create_display(void *dpy, struct native_event_handler *event_handler)
-{
-   struct native_display *ndpy = NULL;
-   int fd;
-
-   fd = (dpy != EGL_DEFAULT_DISPLAY) ? (int) pointer_to_intptr((void *) dpy) : -1;
-   ndpy = kms_create_display(fd, event_handler);
+static struct native_platform kms_platform;
 
-   return ndpy;
+const struct native_platform *
+native_get_platform(void)
+{
+   kms_init_platform(&kms_platform);
+   return &kms_platform;
 }
diff --git a/src/gallium/state_trackers/egl/x11/native_x11.c b/src/gallium/state_trackers/egl/x11/native_x11.c
index 6f1e599873..6c0201c26f 100644
--- a/src/gallium/state_trackers/egl/x11/native_x11.c
+++ b/src/gallium/state_trackers/egl/x11/native_x11.c
@@ -44,8 +44,8 @@ x11_probe_destroy(struct native_probe *nprobe)
    FREE(nprobe);
 }
 
-struct native_probe *
-native_create_probe(void *dpy)
+static struct native_probe *
+x11_create_probe(void *dpy)
 {
    struct native_probe *nprobe;
    struct x11_screen *xscr;
@@ -89,8 +89,8 @@ native_create_probe(void *dpy)
    return nprobe;
 }
 
-enum native_probe_result
-native_get_probe_result(struct native_probe *nprobe)
+static enum native_probe_result
+x11_get_probe_result(struct native_probe *nprobe)
 {
    if (!nprobe || nprobe->magic != X11_PROBE_MAGIC)
       return NATIVE_PROBE_UNKNOWN;
@@ -106,17 +106,7 @@ native_get_probe_result(struct native_probe *nprobe)
    return NATIVE_PROBE_EXACT;
 }
 
-const char *
-native_get_name(void)
-{
-   static char x11_name[32];
-
-   util_snprintf(x11_name, sizeof(x11_name), "X11/%s", driver_descriptor.name);
-
-   return x11_name;
-}
-
-struct native_display *
+static struct native_display *
 native_create_display(void *dpy, struct native_event_handler *event_handler)
 {
    struct native_display *ndpy = NULL;
@@ -139,3 +129,28 @@ native_create_display(void *dpy, struct native_event_handler *event_handler)
 
    return ndpy;
 }
+
+static void
+x11_init_platform(struct native_platform *nplat)
+{
+   static char x11_name[32];
+
+   if (nplat->name)
+      return;
+
+   util_snprintf(x11_name, sizeof(x11_name), "X11/%s", driver_descriptor.name);
+
+   nplat->name = x11_name;
+   nplat->create_probe = x11_create_probe;
+   nplat->get_probe_result = x11_get_probe_result;
+   nplat->create_display = native_create_display;
+}
+
+static struct native_platform x11_platform;
+
+const struct native_platform *
+native_get_platform(void)
+{
+   x11_init_platform(&x11_platform);
+   return &x11_platform;
+}