From d0b55120beb4848be5e7ef24f0301f8397baa8be Mon Sep 17 00:00:00 2001
From: Michal Krol <michal@vmware.com>
Date: Wed, 23 Dec 2009 19:37:18 +0100
Subject: gallium: Add interfaces needed for instanced drawing.

---
 src/gallium/include/pipe/p_context.h       | 16 ++++++++++++++++
 src/gallium/include/pipe/p_shader_tokens.h |  3 ++-
 src/gallium/include/pipe/p_state.h         |  1 +
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/src/gallium/include/pipe/p_context.h b/src/gallium/include/pipe/p_context.h
index 11bcdc0a24c..d5d1e0e76bc 100644
--- a/src/gallium/include/pipe/p_context.h
+++ b/src/gallium/include/pipe/p_context.h
@@ -69,6 +69,22 @@ struct pipe_context {
 			     unsigned indexSize,
 			     unsigned mode, unsigned start, unsigned count);
 
+   boolean (*draw_arrays_instanced)(struct pipe_context *pipe,
+                                    unsigned mode,
+                                    unsigned start,
+                                    unsigned count,
+                                    unsigned startInstance,
+                                    unsigned instanceCount);
+
+   boolean (*draw_elements_instanced)(struct pipe_context *pipe,
+                                      struct pipe_buffer *indexBuffer,
+                                      unsigned indexSize,
+                                      unsigned mode,
+                                      unsigned start,
+                                      unsigned count,
+                                      unsigned startInstance,
+                                      unsigned instanceCount);
+
    /* XXX: this is (probably) a temporary entrypoint, as the range
     * information should be available from the vertex_buffer state.
     * Using this to quickly evaluate a specialized path in the draw
diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h
index 5da85bbbc24..d79124828f9 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -130,7 +130,8 @@ struct tgsi_declaration_range
 #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_INSTANCEID 9
+#define TGSI_SEMANTIC_COUNT      10 /**< number of semantic values */
 
 struct tgsi_declaration_semantic
 {
diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
index 60e96b98deb..4d38bbcc326 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -364,6 +364,7 @@ struct pipe_vertex_buffer
    unsigned stride;    /**< stride to same attrib in next vertex, in bytes */
    unsigned max_index;   /**< number of vertices in this buffer */
    unsigned buffer_offset;  /**< offset to start of data in buffer, in bytes */
+   unsigned instance_divisor;    /**< instance data rate divisor, 0 means per-vertex data */
    struct pipe_buffer *buffer;  /**< the actual buffer */
 };
 
-- 
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