struct draw_context *draw_create( void )
{
struct draw_context *draw = CALLOC_STRUCT( draw_context );
if (draw == NULL)
goto fail;
ASSIGN_4V( draw->plane[0], -1, 0, 0, 1 );
ASSIGN_4V( draw->plane[1], 1, 0, 0, 1 );
ASSIGN_4V( draw->plane[2], 0, -1, 0, 1 );
ASSIGN_4V( draw->plane[3], 0, 1, 0, 1 );
ASSIGN_4V( draw->plane[4], 0, 0, 1, 1 ); /* yes these are correct */
ASSIGN_4V( draw->plane[5], 0, 0, -1, 1 ); /* mesa's a bit wonky */
draw->nr_planes = 6;
draw->reduced_prim = ~0; /* != any of PIPE_PRIM_x */
if (!draw_pipeline_init( draw ))
goto fail;
if (!draw_pt_init( draw ))
goto fail;
if (!draw_vs_init( draw ))
goto fail;
return draw;
fail:
draw_destroy( draw );
return NULL;
}
boolean draw_init(struct draw_context *draw)
{
/*
* Note that several functions compute the clipmask of the predefined
* formats with hardcoded formulas instead of using these. So modifications
* here must be reflected there too.
*/
ASSIGN_4V( draw->plane[0], -1, 0, 0, 1 );
ASSIGN_4V( draw->plane[1], 1, 0, 0, 1 );
ASSIGN_4V( draw->plane[2], 0, -1, 0, 1 );
ASSIGN_4V( draw->plane[3], 0, 1, 0, 1 );
ASSIGN_4V( draw->plane[4], 0, 0, 1, 1 ); /* yes these are correct */
ASSIGN_4V( draw->plane[5], 0, 0, -1, 1 ); /* mesa's a bit wonky */
draw->clip_xy = TRUE;
draw->clip_z = TRUE;
draw->pt.user.planes = (float (*) [DRAW_TOTAL_CLIP_PLANES][4]) &(draw->plane[0]);
draw->pt.user.eltMax = ~0;
if (!draw_pipeline_init( draw ))
return FALSE;
if (!draw_pt_init( draw ))
return FALSE;
if (!draw_vs_init( draw ))
return FALSE;
if (!draw_gs_init( draw ))
return FALSE;
draw->quads_always_flatshade_last = !draw->pipe->screen->get_param(
draw->pipe->screen, PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION);
draw->floating_point_depth = false;
return TRUE;
}
boolean draw_init(struct draw_context *draw)
{
/*
* Note that several functions compute the clipmask of the predefined
* formats with hardcoded formulas instead of using these. So modifications
* here must be reflected there too.
*/
ASSIGN_4V( draw->plane[0], -1, 0, 0, 1 );
ASSIGN_4V( draw->plane[1], 1, 0, 0, 1 );
ASSIGN_4V( draw->plane[2], 0, -1, 0, 1 );
ASSIGN_4V( draw->plane[3], 0, 1, 0, 1 );
ASSIGN_4V( draw->plane[4], 0, 0, 1, 1 ); /* yes these are correct */
ASSIGN_4V( draw->plane[5], 0, 0, -1, 1 ); /* mesa's a bit wonky */
draw->nr_planes = 6;
draw->clip_xy = TRUE;
draw->clip_z = TRUE;
draw->reduced_prim = ~0; /* != any of PIPE_PRIM_x */
if (!draw_pipeline_init( draw ))
return FALSE;
if (!draw_pt_init( draw ))
return FALSE;
if (!draw_vs_init( draw ))
return FALSE;
if (!draw_gs_init( draw ))
return FALSE;
return TRUE;
}