1 files changed, 63 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/glx/dri1/dri_drawable.c b/src/gallium/state_trackers/glx/dri1/dri_drawable.c
new file mode 100644
index 0000000000..7503c40194
--- /dev/null
+++ b/src/gallium/state_trackers/glx/dri1/dri_drawable.c
@@ -0,0 +1,63 @@
+
+/**
+ * This is called when we need to set up GL rendering to a new X window.
+ */
+static boolean
+dri_create_buffer(__DRIscreenPrivate *sPriv,
+                  __DRIdrawablePrivate *dPriv,
+                  const __GLcontextModes *visual,
+                  boolean isPixmap)
+{
+   enum pipe_format colorFormat, depthFormat, stencilFormat;
+   struct dri_drawable *drawable;
+
+   if (isPixmap) 
+      goto fail;          /* not implemented */
+
+   drawable = CALLOC_STRUCT(dri_drawable);
+   if (drawable == NULL)
+      goto fail;
+
+   /* XXX: todo: use the pipe_screen queries to figure out which
+    * render targets are supportable.
+    */
+   if (visual->redBits == 5)
+      colorFormat = PIPE_FORMAT_R5G6B5_UNORM;
+   else
+      colorFormat = PIPE_FORMAT_A8R8G8B8_UNORM;
+
+   if (visual->depthBits == 16)
+      depthFormat = PIPE_FORMAT_Z16_UNORM;
+   else if (visual->depthBits == 24) {
+      if (visual->stencilBits == 8)
+         depthFormat = PIPE_FORMAT_S8Z24_UNORM;
+      else
+         depthFormat = PIPE_FORMAT_X8Z24_UNORM;
+   }
+
+   drawable->stfb = st_create_framebuffer(visual,
+                                    colorFormat,
+                                    depthFormat,
+                                    dPriv->w,
+                                    dPriv->h,
+                                    (void*) drawable);
+   if (drawable->stfb == NULL)
+      goto fail;
+
+   dPriv->driverPrivate = (void *) drawable;
+   return GL_TRUE;
+
+fail:
+   FREE(drawable);
+   return GL_FALSE;
+}
+
+static void
+dri_destroy_buffer(__DRIdrawablePrivate *dPriv)
+{
+   struct dri_drawable *drawable = dri_drawable(dPriv);
+   assert(drawable->stfb);
+   st_unreference_framebuffer(drawable->stfb);
+   FREE(drawable);
+}
+