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authorJosé Fonseca <jrfonseca@tungstengraphics.com>2007-11-20 13:26:00 +0000
committerJosé Fonseca <jrfonseca@tungstengraphics.com>2007-11-22 11:46:32 +0000
commit1a8daf0627dde44aaa7c40786782618d4d5a6a36 (patch)
tree322daea9d948ceb1c722f047c37f4917cb2b378b /src/mesa/pipe/draw/draw_vbuf.h
parent45f658f172b4a3fe6e5190fdba5c00e7f332845c (diff)
New vertex buffer stage.
Diffstat (limited to 'src/mesa/pipe/draw/draw_vbuf.h')
-rw-r--r--src/mesa/pipe/draw/draw_vbuf.h106
1 files changed, 106 insertions, 0 deletions
diff --git a/src/mesa/pipe/draw/draw_vbuf.h b/src/mesa/pipe/draw/draw_vbuf.h
new file mode 100644
index 0000000000..43aa740f64
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+++ b/src/mesa/pipe/draw/draw_vbuf.h
@@ -0,0 +1,106 @@
+/**************************************************************************
+ *
+ * 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.
+ *
+ **************************************************************************/
+
+/**
+ * \file
+ * Vertex buffer drawing stage.
+ *
+ * \author Keith Whitwell <keith@tungstengraphics.com>
+ * \author José Fonseca <jrfonsec@tungstengraphics.com>
+ */
+
+#ifndef DRAW_VBUF_H_
+#define DRAW_VBUF_H_
+
+
+#include "pipe/p_util.h"
+
+
+struct draw_context;
+struct vertex_info;
+
+
+/**
+ * Interface for hardware vertex buffer rendering.
+ */
+struct vbuf_render {
+
+ /**
+ * Driver limits. May be tuned lower to improve cache hits on
+ * index list.
+ */
+ unsigned max_indices;
+ unsigned max_vertex_buffer_bytes;
+
+ /**
+ * Get the hardware vertex format.
+ *
+ * XXX: have this in draw_context instead?
+ */
+ const struct vertex_info *(*get_vertex_info)( struct vbuf_render * );
+
+ /**
+ * Request a destination for vertices.
+ * Hardware renderers will use ttm memory, others will just malloc
+ * something.
+ */
+ void *(*allocate_vertices)( struct vbuf_render *,
+ ushort vertex_size,
+ ushort nr_vertices );
+
+ /**
+ * Notify the renderer of the current primitive when it changes.
+ * Prim is restricted to TRIANGLES, LINES and POINTS.
+ */
+ void (*set_primitive)( struct vbuf_render *, unsigned prim );
+
+ /**
+ * DrawElements, note indices are ushort:
+ */
+ void (*draw)( struct vbuf_render *,
+ const ushort *indices,
+ unsigned nr_indices );
+
+ /**
+ * Called when vbuf is done with this set of vertices:
+ */
+ void (*release_vertices)( struct vbuf_render *,
+ void *vertices,
+ unsigned vertex_size,
+ unsigned vertices_used );
+
+ void (*destroy)( struct vbuf_render * );
+};
+
+
+
+struct draw_stage *
+draw_vbuf_stage( struct draw_context *draw,
+ struct vbuf_render *render );
+
+
+#endif /*DRAW_VBUF_H_*/