1 files changed, 68 insertions, 0 deletions
diff --git a/src/gallium/drivers/softpipe/sp_quad_pipe.c b/src/gallium/drivers/softpipe/sp_quad_pipe.c
new file mode 100644
index 0000000000..43b8e88e33
--- /dev/null
+++ b/src/gallium/drivers/softpipe/sp_quad_pipe.c
@@ -0,0 +1,68 @@
+/**************************************************************************
+ * 
+ * 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.
+ * 
+ **************************************************************************/
+
+
+#include "sp_context.h"
+#include "sp_state.h"
+#include "pipe/p_shader_tokens.h"
+
+static void
+sp_push_quad_first( struct softpipe_context *sp,
+                    struct quad_stage *quad )
+{
+   quad->next = sp->quad.first;
+   sp->quad.first = quad;
+}
+
+
+void
+sp_build_quad_pipeline(struct softpipe_context *sp)
+{
+   boolean early_depth_test =
+      sp->depth_stencil->depth.enabled &&
+      sp->framebuffer.zsbuf &&
+      !sp->depth_stencil->alpha.enabled &&
+      !sp->fs->info.uses_kill &&
+      !sp->fs->info.writes_z;
+
+   sp->quad.first = sp->quad.blend;
+
+   if (early_depth_test) {
+      sp_push_quad_first( sp, sp->quad.shade );
+      sp_push_quad_first( sp, sp->quad.depth_test );
+   }
+   else {
+      sp_push_quad_first( sp, sp->quad.depth_test );
+      sp_push_quad_first( sp, sp->quad.shade );
+   }
+
+#if !DO_PSTIPPLE_IN_DRAW_MODULE
+   if (sp->rasterizer->poly_stipple_enable)
+      sp_push_quad_first( sp, sp->quad.pstipple );
+#endif
+}
+