1 files changed, 83 insertions, 0 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_surface.c b/src/gallium/drivers/llvmpipe/lp_state_surface.c
new file mode 100644
index 0000000000..4b135aaf8b
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_state_surface.c
@@ -0,0 +1,83 @@
+/**************************************************************************
+ * 
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ **************************************************************************/
+
+/* Authors:  Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#include "pipe/p_state.h"
+#include "util/u_inlines.h"
+#include "util/u_framebuffer.h"
+#include "util/u_surface.h"
+#include "lp_context.h"
+#include "lp_scene.h"
+#include "lp_state.h"
+#include "lp_setup.h"
+
+#include "draw/draw_context.h"
+
+#include "util/u_format.h"
+
+
+/**
+ * Set the framebuffer surface info: color buffers, zbuffer, stencil buffer.
+ */
+void
+llvmpipe_set_framebuffer_state(struct pipe_context *pipe,
+                               const struct pipe_framebuffer_state *fb)
+{
+   struct llvmpipe_context *lp = llvmpipe_context(pipe);
+
+   boolean changed = !util_framebuffer_state_equal(&lp->framebuffer, fb);
+
+   assert(fb->width <= LP_MAX_WIDTH);
+   assert(fb->height <= LP_MAX_HEIGHT);
+
+   if (changed) {
+
+      util_copy_framebuffer_state(&lp->framebuffer, fb);
+
+      /* Tell draw module how deep the Z/depth buffer is */
+      if (lp->framebuffer.zsbuf) {
+         int depth_bits;
+         double mrd;
+         depth_bits = util_format_get_component_bits(lp->framebuffer.zsbuf->format,
+                                                     UTIL_FORMAT_COLORSPACE_ZS,
+                                                     0);
+         if (depth_bits > 16) {
+            mrd = 0.0000001;
+         }
+         else {
+            mrd = 0.00002;
+         }
+         draw_set_mrd(lp->draw, mrd);
+      }
+
+      lp_setup_bind_framebuffer( lp->setup, &lp->framebuffer );
+
+      lp->dirty |= LP_NEW_FRAMEBUFFER;
+   }
+}