Mesa (master): egl_dri2: Set NativeVisualID to the matching GBM config for the gbm platform

[Kristian Høgsberg]

Module: Mesa
Branch: master
Commit: df479cffccbdc71d13596bee38cd6434adf5f229
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=df479cffccbdc71d13596bee38cd6434adf5f229

Author: Kristian Høgsberg <krh at bitplanet.net>
Date:   Wed Sep 25 14:57:22 2013 -0700

egl_dri2: Set NativeVisualID to the matching GBM config for the gbm platform

The EGLConfig doesn't have the rgba masks, only the rgba sizes.  To
make sure a config is usable with a given GBM/KMS format, we need a way
to make sure the formats really match.

---

 src/egl/drivers/dri2/platform_drm.c |   23 +++++++++++++++++++++--
 1 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/egl/drivers/dri2/platform_drm.c b/src/egl/drivers/dri2/platform_drm.c
index fb28bd9..7b1e3a1 100644
--- a/src/egl/drivers/dri2/platform_drm.c
+++ b/src/egl/drivers/dri2/platform_drm.c
@@ -476,9 +476,28 @@ dri2_initialize_drm(_EGLDriver *drv, _EGLDisplay *disp)
 
    dri2_setup_screen(disp);
 
-   for (i = 0; dri2_dpy->driver_configs[i]; i++)
+   for (i = 0; dri2_dpy->driver_configs[i]; i++) {
+      EGLint format, attr_list[3];
+      unsigned int mask;
+
+      dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[i],
+                                       __DRI_ATTRIB_RED_MASK, &mask);
+      if (mask == 0x3ff00000)
+         format = GBM_FORMAT_XRGB2101010;
+      else if (mask == 0x00ff0000)
+         format = GBM_FORMAT_XRGB8888;
+      else if (mask == 0xf800)
+         format = GBM_FORMAT_RGB565;
+      else
+         continue;
+
+      attr_list[0] = EGL_NATIVE_VISUAL_ID;
+      attr_list[1] = format;
+      attr_list[2] = EGL_NONE;
+
       dri2_add_config(disp, dri2_dpy->driver_configs[i],
-                      i + 1, EGL_WINDOW_BIT, NULL, NULL);
+                      i + 1, EGL_WINDOW_BIT, attr_list, NULL);
+   }
 
    drv->API.CreateWindowSurface = dri2_create_window_surface;
    drv->API.DestroySurface = dri2_destroy_surface;