gallium: add geometry shader support to gallium

3 files changed, 36 insertions, 22 deletions

diff --git a/src/gallium/include/pipe/p_context.h b/src/gallium/include/pipe/p_context.h
index 11bcdc0a24..6c06fb9027 100644
--- a/src/gallium/include/pipe/p_context.h
+++ b/src/gallium/include/pipe/p_context.h
@@ -142,6 +142,12 @@ struct pipe_context {
                              const struct pipe_shader_state *);
    void   (*bind_vs_state)(struct pipe_context *, void *);
    void   (*delete_vs_state)(struct pipe_context *, void *);
+
+   void * (*create_gs_state)(struct pipe_context *,
+                             const struct pipe_shader_state *);
+   void   (*bind_gs_state)(struct pipe_context *, void *);
+   void   (*delete_gs_state)(struct pipe_context *, void *);
+
    /*@}*/
 
    /**
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index fe1390d765..90fc3331d1 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -321,23 +321,28 @@ enum pipe_transfer_usage {
  */
 #define PIPE_SHADER_VERTEX   0
 #define PIPE_SHADER_FRAGMENT 1
-#define PIPE_SHADER_TYPES    2
+#define PIPE_SHADER_GEOMETRY 2
+#define PIPE_SHADER_TYPES    3
 
 
 /**
  * Primitive types:
  */
-#define PIPE_PRIM_POINTS          0
-#define PIPE_PRIM_LINES           1
-#define PIPE_PRIM_LINE_LOOP       2
-#define PIPE_PRIM_LINE_STRIP      3
-#define PIPE_PRIM_TRIANGLES       4
-#define PIPE_PRIM_TRIANGLE_STRIP  5
-#define PIPE_PRIM_TRIANGLE_FAN    6
-#define PIPE_PRIM_QUADS           7
-#define PIPE_PRIM_QUAD_STRIP      8
-#define PIPE_PRIM_POLYGON         9
-#define PIPE_PRIM_MAX             10
+#define PIPE_PRIM_POINTS               0
+#define PIPE_PRIM_LINES                1
+#define PIPE_PRIM_LINE_LOOP            2
+#define PIPE_PRIM_LINE_STRIP           3
+#define PIPE_PRIM_TRIANGLES            4
+#define PIPE_PRIM_TRIANGLE_STRIP       5
+#define PIPE_PRIM_TRIANGLE_FAN         6
+#define PIPE_PRIM_QUADS                7
+#define PIPE_PRIM_QUAD_STRIP           8
+#define PIPE_PRIM_POLYGON              9
+#define PIPE_PRIM_LINES_ADJACENCY          10
+#define PIPE_PRIM_LINE_STRIP_ADJACENCY    11
+#define PIPE_PRIM_TRIANGLES_ADJACENCY      12
+#define PIPE_PRIM_TRIANGLE_STRIP_ADJACENCY 13
+#define PIPE_PRIM_MAX                      14
 
 
 /**
@@ -393,6 +398,7 @@ enum pipe_transfer_usage {
 #define PIPE_CAP_MAX_PREDICATE_REGISTERS 30
 #define PIPE_CAP_MAX_COMBINED_SAMPLERS   31  /*< Maximum texture image units accessible from vertex
                                                  and fragment shaders combined */
+#define PIPE_CAP_GEOMETRY_SHADER4        32
 
 
 /**
diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h
index 5da85bbbc2..3e7335b455 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -121,16 +121,18 @@ struct tgsi_declaration_range
    unsigned Last    : 16; /**< UINT */
 };
 
-#define TGSI_SEMANTIC_POSITION 0
-#define TGSI_SEMANTIC_COLOR    1
-#define TGSI_SEMANTIC_BCOLOR   2 /**< back-face color */
-#define TGSI_SEMANTIC_FOG      3
-#define TGSI_SEMANTIC_PSIZE    4
-#define TGSI_SEMANTIC_GENERIC  5
-#define TGSI_SEMANTIC_NORMAL   6
-#define TGSI_SEMANTIC_FACE     7
-#define TGSI_SEMANTIC_EDGEFLAG 8
-#define TGSI_SEMANTIC_COUNT    9 /**< number of semantic values */
+#define TGSI_SEMANTIC_POSITION  0
+#define TGSI_SEMANTIC_COLOR     1
+#define TGSI_SEMANTIC_BCOLOR    2 /**< back-face color */
+#define TGSI_SEMANTIC_FOG       3
+#define TGSI_SEMANTIC_PSIZE     4
+#define TGSI_SEMANTIC_GENERIC   5
+#define TGSI_SEMANTIC_NORMAL    6
+#define TGSI_SEMANTIC_FACE      7
+#define TGSI_SEMANTIC_EDGEFLAG  8
+#define TGSI_SEMANTIC_VERTICES  9
+#define TGSI_SEMANTIC_PRIMID   10
+#define TGSI_SEMANTIC_COUNT    11 /**< number of semantic values */
 
 struct tgsi_declaration_semantic
 {