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authorChia-I Wu <olv@lunarg.com>2010-07-16 04:02:55 +0800
committerChia-I Wu <olv@lunarg.com>2010-07-29 13:45:30 +0800
commitc5e9d3114a80d6d35a2f4e65783cdc75fcc2deac (patch)
tree959bad5c651e29e57e629d1fa9452b58d9983e74 /src/gallium
parent7e4e79be6bba7cf68046bd77aa8d44fb52ca5186 (diff)
gallium: Add pipe_context::draw_vbo and pipe_context::set_index_buffer.
This commit adds a new unified draw_vbo method to pipe_context. Unlike other draw methods, draw_vbo treats the index buffer as a state which is set with set_index_buffer.
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/include/pipe/p_context.h6
-rw-r--r--src/gallium/include/pipe/p_state.h35
2 files changed, 41 insertions, 0 deletions
diff --git a/src/gallium/include/pipe/p_context.h b/src/gallium/include/pipe/p_context.h
index 7ec3d63a3fd..3314b1e0e0f 100644
--- a/src/gallium/include/pipe/p_context.h
+++ b/src/gallium/include/pipe/p_context.h
@@ -102,6 +102,9 @@ struct pipe_context {
unsigned start,
unsigned count);
+ void (*draw_vbo)( struct pipe_context *pipe,
+ const struct pipe_draw_info *info );
+
/**
* Draw the stream output buffer at index 0
*/
@@ -249,6 +252,9 @@ struct pipe_context {
unsigned num_buffers,
const struct pipe_vertex_buffer * );
+ void (*set_index_buffer)( struct pipe_context *pipe,
+ const struct pipe_index_buffer * );
+
void (*set_stream_output_buffers)(struct pipe_context *,
struct pipe_resource **buffers,
int *offsets, /*array of offsets
diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h
index 301fe2b74f0..0f1a44cde42 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -426,6 +426,41 @@ struct pipe_vertex_element
};
+/**
+ * An index buffer. When an index buffer is bound, all indices to vertices
+ * will be looked up in the buffer.
+ */
+struct pipe_index_buffer
+{
+ unsigned index_size; /**< size of an index, in bytes */
+ unsigned offset; /**< offset to start of data in buffer, in bytes */
+ struct pipe_resource *buffer; /**< the actual buffer */
+};
+
+
+/**
+ * Information to describe a draw_vbo call.
+ */
+struct pipe_draw_info
+{
+ boolean indexed; /**< use index buffer */
+
+ unsigned mode; /**< the mode of the primitive */
+ unsigned start; /**< the index of the first vertex */
+ unsigned count; /**< number of vertices */
+
+ unsigned start_instance; /**< first instance id */
+ unsigned instance_count; /**< number of instances */
+
+ /**
+ * For indexed drawing, these fields apply after index lookup.
+ */
+ int index_bias; /**< a bias to be added to each index */
+ unsigned min_index; /**< the min index */
+ unsigned max_index; /**< the max index */
+};
+
+
#ifdef __cplusplus
}
#endif