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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 "sp_context.h"
#include "sp_clear.h"
#include "sp_prim.h"
#include "sp_state.h"
#include "sp_draw.h"
static void softpipe_destroy( struct pipe_context *pipe )
{
struct softpipe_context *softpipe = softpipe_context( pipe );
draw_destroy( softpipe->draw );
FREE( softpipe );
}
static void softpipe_draw_vb( struct pipe_context *pipe,
struct vertex_buffer *VB )
{
struct softpipe_context *softpipe = softpipe_context( pipe );
if (softpipe->dirty)
softpipe_update_derived( softpipe );
draw_vb( softpipe->draw, VB );
}
struct pipe_context *softpipe_create( void )
{
struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
softpipe->pipe.destroy = softpipe_destroy;
softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
softpipe->pipe.set_clip_state = softpipe_set_clip_state;
softpipe->pipe.set_clear_color_state = softpipe_set_clear_color_state;
softpipe->pipe.set_point_state = softpipe_set_point_state;
softpipe->pipe.set_viewport = softpipe_set_viewport;
softpipe->pipe.set_setup_state = softpipe_set_setup_state;
softpipe->pipe.set_scissor_rect = softpipe_set_scissor_rect;
softpipe->pipe.set_fs_state = softpipe_set_fs_state;
softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple;
softpipe->pipe.draw_vb = softpipe_draw_vb;
softpipe->pipe.clear = softpipe_clear;
softpipe->prim.setup = prim_setup( softpipe );
softpipe->prim.unfilled = prim_unfilled( softpipe );
softpipe->prim.twoside = prim_twoside( softpipe );
softpipe->prim.offset = prim_offset( softpipe );
softpipe->prim.clip = prim_clip( softpipe );
softpipe->prim.flatshade = prim_flatshade( softpipe );
softpipe->prim.cull = prim_cull( softpipe );
softpipe->draw = draw_create( softpipe );
ASSIGN_4V( softpipe->plane[0], -1, 0, 0, 1 );
ASSIGN_4V( softpipe->plane[1], 1, 0, 0, 1 );
ASSIGN_4V( softpipe->plane[2], 0, -1, 0, 1 );
ASSIGN_4V( softpipe->plane[3], 0, 1, 0, 1 );
ASSIGN_4V( softpipe->plane[4], 0, 0, 1, 1 ); /* yes these are correct */
ASSIGN_4V( softpipe->plane[5], 0, 0, -1, 1 ); /* mesa's a bit wonky */
softpipe->nr_planes = 6;
return &softpipe->pipe;
}
#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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