llvmpipe: hook up basic gs and multiple constant buffer support

1 files changed, 113 insertions, 0 deletions

diff --git a/src/gallium/drivers/llvmpipe/lp_state_gs.c b/src/gallium/drivers/llvmpipe/lp_state_gs.c
new file mode 100644
index 0000000000..e5eeb88e2b
--- /dev/null
+++ b/src/gallium/drivers/llvmpipe/lp_state_gs.c
@@ -0,0 +1,113 @@
+/**************************************************************************
+ * 
+ * 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 "lp_context.h"
+#include "lp_state.h"
+#include "lp_texture.h"
+
+#include "pipe/p_defines.h"
+#include "util/u_memory.h"
+#include "util/u_inlines.h"
+#include "draw/draw_context.h"
+#include "draw/draw_vs.h"
+#include "tgsi/tgsi_dump.h"
+#include "tgsi/tgsi_scan.h"
+#include "tgsi/tgsi_parse.h"
+
+
+static void *
+llvmpipe_create_gs_state(struct pipe_context *pipe,
+                         const struct pipe_shader_state *templ)
+{
+   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+   struct lp_geometry_shader *state;
+
+   state = CALLOC_STRUCT(lp_geometry_shader);
+   if (state == NULL )
+      goto fail;
+
+   /* debug */
+   if (0)
+      tgsi_dump(templ->tokens, 0);
+
+   /* copy shader tokens, the ones passed in will go away.
+    */
+   state->shader.tokens = tgsi_dup_tokens(templ->tokens);
+   if (state->shader.tokens == NULL)
+      goto fail;
+
+   state->draw_data = draw_create_geometry_shader(llvmpipe->draw, templ);
+   if (state->draw_data == NULL)
+      goto fail;
+
+   return state;
+
+fail:
+   if (state) {
+      FREE( (void *)state->shader.tokens );
+      FREE( state->draw_data );
+      FREE( state );
+   }
+   return NULL;
+}
+
+
+static void
+llvmpipe_bind_gs_state(struct pipe_context *pipe, void *gs)
+{
+   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+
+   llvmpipe->gs = (struct lp_geometry_shader *)gs;
+
+   draw_bind_geometry_shader(llvmpipe->draw,
+                             (llvmpipe->gs ? llvmpipe->gs->draw_data : NULL));
+
+   llvmpipe->dirty |= LP_NEW_GS;
+}
+
+
+static void
+llvmpipe_delete_gs_state(struct pipe_context *pipe, void *gs)
+{
+   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
+
+   struct lp_geometry_shader *state =
+      (struct lp_geometry_shader *)gs;
+
+   draw_delete_geometry_shader(llvmpipe->draw,
+                               (state) ? state->draw_data : 0);
+   FREE(state);
+}
+
+
+void
+llvmpipe_init_gs_funcs(struct llvmpipe_context *llvmpipe)
+{
+   llvmpipe->pipe.create_gs_state = llvmpipe_create_gs_state;
+   llvmpipe->pipe.bind_gs_state   = llvmpipe_bind_gs_state;
+   llvmpipe->pipe.delete_gs_state = llvmpipe_delete_gs_state;
+}