svga: Add svga driver

1 files changed, 261 insertions, 0 deletions

diff --git a/src/gallium/drivers/svga/svga_pipe_draw.c b/src/gallium/drivers/svga/svga_pipe_draw.c
new file mode 100644
index 00000000000..71a552862e9
--- /dev/null
+++ b/src/gallium/drivers/svga/svga_pipe_draw.c
@@ -0,0 +1,261 @@
+/**********************************************************
+ * Copyright 2008-2009 VMware, Inc.  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, sublicense, 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 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
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * 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 "svga_cmd.h"
+
+#include "pipe/p_inlines.h"
+#include "util/u_prim.h"
+#include "util/u_time.h"
+#include "indices/u_indices.h"
+
+#include "svga_hw_reg.h"
+#include "svga_context.h"
+#include "svga_screen.h"
+#include "svga_winsys.h"
+#include "svga_draw.h"
+#include "svga_state.h"
+#include "svga_swtnl.h"
+#include "svga_debug.h"
+
+
+
+static enum pipe_error
+retry_draw_range_elements( struct svga_context *svga,
+                           struct pipe_buffer *index_buffer,
+                           unsigned index_size,
+                           unsigned min_index,
+                           unsigned max_index,
+                           unsigned prim, 
+                           unsigned start, 
+                           unsigned count,
+                           boolean do_retry )
+{
+   enum pipe_error ret = 0;
+
+   svga_hwtnl_set_unfilled( svga->hwtnl,
+                            svga->curr.rast->hw_unfilled );
+
+   svga_hwtnl_set_flatshade( svga->hwtnl,
+                             svga->curr.rast->templ.flatshade,
+                             svga->curr.rast->templ.flatshade_first );
+
+
+   ret = svga_update_state( svga, SVGA_STATE_HW_DRAW );
+   if (ret)
+      goto retry;
+
+   ret = svga_hwtnl_draw_range_elements( svga->hwtnl,
+                                         index_buffer, index_size,
+                                         min_index, max_index,
+                                         prim, start, count, 0 );
+   if (ret)
+      goto retry;
+
+   if (svga->curr.any_user_vertex_buffers) {
+      ret = svga_hwtnl_flush( svga->hwtnl );
+      if (ret)
+         goto retry;
+   }
+
+   return PIPE_OK;
+
+retry:
+   svga_context_flush( svga, NULL );
+
+   if (do_retry)
+   {
+      return retry_draw_range_elements( svga,
+                                        index_buffer, index_size,
+                                        min_index, max_index,
+                                        prim, start, count,
+                                        FALSE );
+   }
+
+   return ret;
+}
+
+
+static enum pipe_error
+retry_draw_arrays( struct svga_context *svga,
+                   unsigned prim, 
+                   unsigned start, 
+                   unsigned count,
+                   boolean do_retry )
+{
+   enum pipe_error ret;
+
+   svga_hwtnl_set_unfilled( svga->hwtnl,
+                            svga->curr.rast->hw_unfilled );
+
+   svga_hwtnl_set_flatshade( svga->hwtnl,
+                             svga->curr.rast->templ.flatshade,
+                             svga->curr.rast->templ.flatshade_first );
+
+   ret = svga_update_state( svga, SVGA_STATE_HW_DRAW );
+   if (ret)
+      goto retry;
+
+   ret = svga_hwtnl_draw_arrays( svga->hwtnl, prim,
+                                 start, count );
+   if (ret)
+      goto retry;
+
+   if (svga->curr.any_user_vertex_buffers) {
+      ret = svga_hwtnl_flush( svga->hwtnl );
+      if (ret)
+         goto retry;
+   }
+
+   return 0;
+
+retry:
+   if (ret == PIPE_ERROR_OUT_OF_MEMORY && do_retry) 
+   {
+      svga_context_flush( svga, NULL );
+
+      return retry_draw_arrays( svga,
+                                prim,
+                                start,
+                                count,
+                                FALSE );
+   }
+
+   return ret;
+}
+
+
+
+
+
+static boolean
+svga_draw_range_elements( struct pipe_context *pipe,
+                          struct pipe_buffer *index_buffer,
+                          unsigned index_size,
+                          unsigned min_index,
+                          unsigned max_index,
+                          unsigned prim, unsigned start, unsigned count)
+{
+   struct svga_context *svga = svga_context( pipe );
+   unsigned reduced_prim = u_reduced_prim(prim);
+   enum pipe_error ret = 0;
+
+   if (!u_trim_pipe_prim( prim, &count ))
+      return TRUE;
+
+   /*
+    * Mark currently bound target surfaces as dirty
+    * doesn't really matter if it is done before drawing.
+    *
+    * TODO If we ever normaly return something other then
+    * true we should not mark it as dirty then.
+    */
+   svga_mark_surfaces_dirty(svga_context(pipe));
+
+   if (svga->curr.reduced_prim != reduced_prim) {
+      svga->curr.reduced_prim = reduced_prim;
+      svga->dirty |= SVGA_NEW_REDUCED_PRIMITIVE;
+   }
+   
+   svga_update_state_retry( svga, SVGA_STATE_NEED_SWTNL );
+
+#ifdef DEBUG
+   if (svga->curr.vs->base.id == svga->debug.disable_shader ||
+       svga->curr.fs->base.id == svga->debug.disable_shader)
+      return 0;
+#endif
+
+   if (svga->state.sw.need_swtnl)
+   {
+      ret = svga_swtnl_draw_range_elements( svga, 
+                                            index_buffer, 
+                                            index_size,
+                                            min_index, max_index,
+                                            prim,
+                                            start, count );
+   }
+   else {
+      if (index_buffer) {
+         ret = retry_draw_range_elements( svga,
+                                          index_buffer,
+                                          index_size,
+                                          min_index,
+                                          max_index,
+                                          prim,
+                                          start,
+                                          count,
+                                          TRUE );
+      }
+      else {
+         ret = retry_draw_arrays( svga, 
+                                  prim, 
+                                  start, 
+                                  count,
+                                  TRUE );
+      }
+   }
+
+   if (SVGA_DEBUG & DEBUG_FLUSH) {
+      static unsigned id;
+      debug_printf("%s %d\n", __FUNCTION__, id++);
+      if (id > 1300)
+         util_time_sleep( 2000 );
+
+      svga_hwtnl_flush_retry( svga );
+      svga_context_flush(svga, NULL);
+   }
+
+   return ret == PIPE_OK;
+}
+
+
+static boolean 
+svga_draw_elements( struct pipe_context *pipe,
+                    struct pipe_buffer *index_buffer,
+                    unsigned index_size,
+                    unsigned prim, unsigned start, unsigned count)
+{
+   return svga_draw_range_elements( pipe, index_buffer,
+                                    index_size,
+                                    0, 0xffffffff,
+                                    prim, start, count );
+}
+
+static boolean 
+svga_draw_arrays( struct pipe_context *pipe,
+                  unsigned prim, unsigned start, unsigned count)
+{
+   return svga_draw_range_elements(pipe, NULL, 0, 
+                                   start, start + count - 1, 
+                                   prim, 
+                                   start, count);
+}
+
+
+void svga_init_draw_functions( struct svga_context *svga )
+{
+   svga->pipe.draw_arrays = svga_draw_arrays;
+   svga->pipe.draw_elements = svga_draw_elements;
+   svga->pipe.draw_range_elements = svga_draw_range_elements;
+}