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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.
*
**************************************************************************/
#include "pipe/p_util.h"
#include "draw/draw_context.h"
#include "draw/draw_vbuf.h"
#include "draw/draw_vertex.h"
#include "draw/draw_pt.h"
#include "draw/draw_vs.h"
#include "translate/translate.h"
struct fetch_pipeline_middle_end {
struct draw_pt_middle_end base;
struct draw_context *draw;
struct pt_emit *emit;
unsigned pipeline_vertex_size;
unsigned prim;
unsigned opt;
};
static void fetch_pipeline_prepare( struct draw_pt_middle_end *middle,
unsigned prim,
unsigned opt )
{
struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle;
fpme->prim = prim;
fpme->opt = opt;
if (!(opt & PT_PIPELINE))
draw_pt_emit_prepare( fpme->emit, prim, opt );
//fpme->pipeline_vertex_size = sizeof(struct vertex_header) + nr * 4 * sizeof(float);
fpme->pipeline_vertex_size = MAX_VERTEX_ALLOCATION;
}
static void fetch_pipeline_run( struct draw_pt_middle_end *middle,
const unsigned *fetch_elts,
unsigned fetch_count,
const ushort *draw_elts,
unsigned draw_count )
{
struct fetch_pipeline_middle_end *fpme = (struct fetch_pipeline_middle_end *)middle;
struct draw_context *draw = fpme->draw;
struct draw_vertex_shader *shader = draw->vertex_shader;
char *pipeline_verts;
unsigned pipeline = PT_PIPELINE;
pipeline_verts = MALLOC(fpme->pipeline_vertex_size *
fetch_count);
if (!pipeline_verts) {
assert(0);
return;
}
/* Shade
*/
shader->prepare(shader, draw);
if (shader->run(shader, draw, fetch_elts, fetch_count, pipeline_verts,
fpme->pipeline_vertex_size))
{
pipeline |= PT_CLIPTEST;
}
/* Do we need to run the pipeline?
*/
if (fpme->opt & pipeline) {
draw_pt_run_pipeline( fpme->draw,
fpme->prim,
pipeline_verts,
fpme->pipeline_vertex_size,
fetch_count,
draw_elts,
draw_count );
} else {
draw_pt_emit( fpme->emit,
pipeline_verts,
fpme->pipeline_vertex_size,
fetch_count,
draw_elts,
draw_count );
}
FREE(pipeline_verts);
}
static void fetch_pipeline_finish( struct draw_pt_middle_end *middle )
{
/* nothing to do */
}
static void fetch_pipeline_destroy( struct draw_pt_middle_end *middle )
{
FREE(middle);
}
struct draw_pt_middle_end *draw_pt_fetch_pipeline_or_emit( struct draw_context *draw )
{
struct fetch_pipeline_middle_end *fpme = CALLOC_STRUCT( fetch_pipeline_middle_end );
if (!fpme)
goto fail;
fpme->base.prepare = fetch_pipeline_prepare;
fpme->base.run = fetch_pipeline_run;
fpme->base.finish = fetch_pipeline_finish;
fpme->base.destroy = fetch_pipeline_destroy;
fpme->draw = draw;
fpme->emit = draw_pt_emit_create( draw );
if (!fpme->emit)
goto fail;
return &fpme->base;
fail:
if (fpme)
fetch_pipeline_destroy( &fpme->base );
return NULL;
}
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