Merge remote-tracking branch 'origin/master' into pipe-video

Conflicts:
	configure.ac
	src/gallium/drivers/r600/r600_state_inlines.h
	src/gallium/tests/trivial/Makefile
	src/gallium/winsys/g3dvl/dri/XF86dri.c
	src/gallium/winsys/g3dvl/dri/driclient.c
	src/gallium/winsys/g3dvl/dri/driclient.h
	src/gallium/winsys/g3dvl/dri/xf86dri.h
	src/gallium/winsys/g3dvl/dri/xf86dristr.h
	src/gallium/winsys/r600/drm/r600_bo.c

1 files changed, 109 insertions, 18 deletions

diff --git a/src/gallium/targets/egl-static/egl_st.c b/src/gallium/targets/egl-static/egl_st.c
index 3db52621def..81d7bb47568 100644
--- a/src/gallium/targets/egl-static/egl_st.c
+++ b/src/gallium/targets/egl-static/egl_st.c
@@ -29,52 +29,143 @@
 #include "state_tracker/st_api.h"
 #include "egl_st.h"
 
-/* for st/mesa */
+#if FEATURE_GL || FEATURE_ES1 || FEATURE_ES2
 #include "state_tracker/st_gl_api.h"
-/* for st/vega */
+#endif
+
+#if FEATURE_VG
 #include "vg_api.h"
+#endif
+
+#if _EGL_EXTERNAL_GL
+
+#include "util/u_string.h"
+#include "util/u_dl.h"
+#include "egldriver.h"
+#include "egllog.h"
+
+static struct util_dl_library *egl_st_gl_lib;
+
+static EGLBoolean
+dlopen_gl_lib_cb(const char *dir, size_t len, void *callback_data)
+{
+   const char *name = (const char *) callback_data;
+   char path[1024];
+   int ret;
+
+   if (len) {
+      ret = util_snprintf(path, sizeof(path), "%.*s/%s" UTIL_DL_EXT,
+            len, dir, name);
+   }
+   else {
+      ret = util_snprintf(path, sizeof(path), "%s" UTIL_DL_EXT, name);
+   }
+
+   if (ret > 0 && ret < sizeof(path)) {
+      egl_st_gl_lib = util_dl_open(path);
+      if (egl_st_gl_lib)
+         _eglLog(_EGL_DEBUG, "loaded %s", path);
+   }
+
+   return !egl_st_gl_lib;
+}
 
 static struct st_api *
-st_GL_create_api(void)
+load_gl(const char *name, const char *procname)
 {
-#if FEATURE_GL || FEATURE_ES1 || FEATURE_ES2
-   return st_gl_api_create();
-#else
-   return NULL;
-#endif
+   struct st_api *(*create_api)(void);
+   struct st_api *stapi = NULL;
+
+   _eglSearchPathForEach(dlopen_gl_lib_cb, (void *) name);
+   if (!egl_st_gl_lib)
+      return NULL;
+
+   create_api = (struct st_api *(*)(void))
+      util_dl_get_proc_address(egl_st_gl_lib, procname);
+   if (create_api)
+      stapi = create_api();
+
+   if (!stapi) {
+      util_dl_close(egl_st_gl_lib);
+      egl_st_gl_lib = NULL;
+   }
+
+   return stapi;
 }
 
 static struct st_api *
-st_OpenVG_create_api(void)
+egl_st_load_gl(void)
 {
-#if FEATURE_VG
-   return (struct st_api *) vg_api_get();
-#else
-   return NULL;
-#endif
+   const char module[] = "st_GL";
+   const char symbol[] = "st_api_create_OpenGL";
+   struct st_api *stapi;
+
+   stapi = load_gl(module, symbol);
+
+   /* try again with libglapi.so loaded */
+   if (!stapi) {
+      struct util_dl_library *glapi = util_dl_open("libglapi" UTIL_DL_EXT);
+
+      if (glapi) {
+         _eglLog(_EGL_DEBUG, "retry with libglapi" UTIL_DL_EXT " loaded");
+
+         stapi = load_gl(module, symbol);
+         util_dl_close(glapi);
+      }
+   }
+   if (!stapi)
+      _eglLog(_EGL_WARNING, "unable to load %s" UTIL_DL_EXT, module);
+
+   return stapi;
 }
 
+#endif /* _EGL_EXTERNAL_GL */
+
 struct st_api *
 egl_st_create_api(enum st_api_type api)
 {
-   struct st_api *stapi;
+   struct st_api *stapi = NULL;
 
    switch (api) {
    case ST_API_OPENGL:
-      stapi = st_GL_create_api();
+#if FEATURE_GL || FEATURE_ES1 || FEATURE_ES2
+#if _EGL_EXTERNAL_GL
+      stapi = egl_st_load_gl();
+#else
+      stapi = st_gl_api_create();
+#endif
+#endif
       break;
    case ST_API_OPENVG:
-      stapi = st_OpenVG_create_api();
+#if FEATURE_VG
+      stapi = (struct st_api *) vg_api_get();
+#endif
       break;
    default:
       assert(!"Unknown API Type\n");
-      stapi = NULL;
       break;
    }
 
    return stapi;
 }
 
+void
+egl_st_destroy_api(struct st_api *stapi)
+{
+#if _EGL_EXTERNAL_GL
+   boolean is_gl = (stapi->api == ST_API_OPENGL);
+
+   stapi->destroy(stapi);
+
+   if (is_gl) {
+      util_dl_close(egl_st_gl_lib);
+      egl_st_gl_lib = NULL;
+   }
+#else
+   stapi->destroy(stapi);
+#endif
+}
+
 uint
 egl_st_get_profile_mask(enum st_api_type api)
 {