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/**************************************************************************
*
* 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.
*
**************************************************************************/
/* Authors: Keith Whitwell <keith@tungstengraphics.com>
*/
#ifndef G_PRIM_H
#define G_PRIM_H
#include "glheader.h"
#include "g_headers.h"
struct generic_context;
struct prim_stage *prim_setup( struct generic_context *context );
struct prim_stage *prim_unfilled( struct generic_context *context );
struct prim_stage *prim_twoside( struct generic_context *context );
struct prim_stage *prim_offset( struct generic_context *context );
struct prim_stage *prim_clip( struct generic_context *context );
struct prim_stage *prim_flatshade( struct generic_context *context );
struct prim_stage *prim_cull( struct generic_context *context );
/* Internal structs and helpers for the primitive clip/setup pipeline:
*/
struct prim_stage {
struct generic_context *generic;
struct prim_stage *next;
struct vertex_header **tmp;
GLuint nr_tmps;
void (*begin)( struct prim_stage * );
void (*point)( struct prim_stage *,
struct prim_header * );
void (*line)( struct prim_stage *,
struct prim_header * );
void (*tri)( struct prim_stage *,
struct prim_header * );
void (*end)( struct prim_stage * );
};
/* Get a writeable copy of a vertex:
*/
static INLINE struct vertex_header *
dup_vert( struct prim_stage *stage,
const struct vertex_header *vert,
GLuint idx )
{
struct vertex_header *tmp = stage->tmp[idx];
memcpy(tmp, vert, stage->generic->prim.vertex_size );
return tmp;
}
void prim_free_tmps( struct prim_stage *stage );
void prim_alloc_tmps( struct prim_stage *stage, GLuint nr );
#endif
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