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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.
*
**************************************************************************/
/* Author:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include "imports.h"
#include "macros.h"
#include "tnl/t_context.h"
#include "vf/vf.h"
#include "g_context.h"
#include "g_prim.h"
#include "g_state.h"
#include "g_draw.h"
static void generic_destroy( struct softpipe_context *softpipe )
{
struct generic_context *generic = generic_context( softpipe );
draw_destroy( generic->draw );
FREE( generic );
}
static void generic_draw_vb( struct softpipe_context *softpipe,
struct vertex_buffer *VB )
{
struct generic_context *generic = generic_context( softpipe );
if (generic->dirty)
generic_update_derived( generic );
draw_vb( generic->draw, VB );
}
struct softpipe_context *generic_create( void )
{
struct generic_context *generic = CALLOC_STRUCT(generic_context);
generic->softpipe.destroy = generic_destroy;
generic->softpipe.set_clip_state = generic_set_clip_state;
generic->softpipe.set_viewport = generic_set_viewport;
generic->softpipe.set_setup_state = generic_set_setup_state;
generic->softpipe.set_scissor_rect = generic_set_scissor_rect;
generic->softpipe.set_fs_state = generic_set_fs_state;
generic->softpipe.set_polygon_stipple = generic_set_polygon_stipple;
generic->softpipe.set_cbuf_state = generic_set_cbuf_state;
generic->softpipe.draw_vb = generic_draw_vb;
generic->prim.setup = prim_setup( generic );
generic->prim.unfilled = prim_unfilled( generic );
generic->prim.twoside = prim_twoside( generic );
generic->prim.offset = prim_offset( generic );
generic->prim.clip = prim_clip( generic );
generic->prim.flatshade = prim_flatshade( generic );
generic->prim.cull = prim_cull( generic );
generic->draw = draw_create( generic );
ASSIGN_4V( generic->plane[0], -1, 0, 0, 1 );
ASSIGN_4V( generic->plane[1], 1, 0, 0, 1 );
ASSIGN_4V( generic->plane[2], 0, -1, 0, 1 );
ASSIGN_4V( generic->plane[3], 0, 1, 0, 1 );
ASSIGN_4V( generic->plane[4], 0, 0, 1, 1 ); /* yes these are correct */
ASSIGN_4V( generic->plane[5], 0, 0, -1, 1 ); /* mesa's a bit wonky */
generic->nr_planes = 6;
return &generic->softpipe;
}
#define MAX_VERTEX_SIZE ((2 + FRAG_ATTRIB_MAX) * 4 * sizeof(GLfloat))
void prim_alloc_tmps( struct prim_stage *stage, GLuint nr )
{
stage->nr_tmps = nr;
if (nr) {
GLubyte *store = MALLOC(MAX_VERTEX_SIZE * nr);
GLuint i;
stage->tmp = MALLOC(sizeof(struct vertex_header *) * nr);
for (i = 0; i < nr; i++)
stage->tmp[i] = (struct vertex_header *)(store + i * MAX_VERTEX_SIZE);
}
}
void prim_free_tmps( struct prim_stage *stage )
{
if (stage->tmp) {
FREE(stage->tmp[0]);
FREE(stage->tmp);
}
}
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