mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-21 06:12:34 +03:00
127 lines
4.3 KiB
C
127 lines
4.3 KiB
C
/**************************************************************************
|
|
*
|
|
* 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 DRAW_PIPE_H
|
|
#define DRAW_PIPE_H
|
|
|
|
#include "pipe/p_compiler.h"
|
|
#include "draw_private.h" /* for sizeof(vertex_header) */
|
|
|
|
|
|
/**
|
|
* Basic info for a point/line/triangle primitive.
|
|
*/
|
|
struct prim_header {
|
|
float det; /**< front/back face determinant */
|
|
ushort flags;
|
|
ushort pad;
|
|
struct vertex_header *v[3]; /**< 1 to 3 vertex pointers */
|
|
};
|
|
|
|
|
|
|
|
/**
|
|
* Base class for all primitive drawing stages.
|
|
*/
|
|
struct draw_stage
|
|
{
|
|
struct draw_context *draw; /**< parent context */
|
|
|
|
struct draw_stage *next; /**< next stage in pipeline */
|
|
const char *name; /**< for debugging */
|
|
|
|
struct vertex_header **tmp; /**< temp vert storage, such as for clipping */
|
|
unsigned nr_tmps;
|
|
|
|
void (*point)( struct draw_stage *,
|
|
struct prim_header * );
|
|
|
|
void (*line)( struct draw_stage *,
|
|
struct prim_header * );
|
|
|
|
void (*tri)( struct draw_stage *,
|
|
struct prim_header * );
|
|
|
|
void (*flush)( struct draw_stage *,
|
|
unsigned flags );
|
|
|
|
void (*reset_stipple_counter)( struct draw_stage * );
|
|
|
|
void (*destroy)( struct draw_stage * );
|
|
};
|
|
|
|
|
|
extern struct draw_stage *draw_unfilled_stage( struct draw_context *context );
|
|
extern struct draw_stage *draw_twoside_stage( struct draw_context *context );
|
|
extern struct draw_stage *draw_offset_stage( struct draw_context *context );
|
|
extern struct draw_stage *draw_clip_stage( struct draw_context *context );
|
|
extern struct draw_stage *draw_flatshade_stage( struct draw_context *context );
|
|
extern struct draw_stage *draw_cull_stage( struct draw_context *context );
|
|
extern struct draw_stage *draw_stipple_stage( struct draw_context *context );
|
|
extern struct draw_stage *draw_wide_line_stage( struct draw_context *context );
|
|
extern struct draw_stage *draw_wide_point_stage( struct draw_context *context );
|
|
extern struct draw_stage *draw_validate_stage( struct draw_context *context );
|
|
|
|
|
|
extern void draw_free_temp_verts( struct draw_stage *stage );
|
|
extern boolean draw_alloc_temp_verts( struct draw_stage *stage, unsigned nr );
|
|
|
|
extern void draw_reset_vertex_ids( struct draw_context *draw );
|
|
|
|
void draw_pipe_passthrough_tri(struct draw_stage *stage, struct prim_header *header);
|
|
void draw_pipe_passthrough_line(struct draw_stage *stage, struct prim_header *header);
|
|
void draw_pipe_passthrough_point(struct draw_stage *stage, struct prim_header *header);
|
|
|
|
|
|
|
|
/**
|
|
* Get a writeable copy of a vertex.
|
|
* \param stage drawing stage info
|
|
* \param vert the vertex to copy (source)
|
|
* \param idx index into stage's tmp[] array to put the copy (dest)
|
|
* \return pointer to the copied vertex
|
|
*/
|
|
static INLINE struct vertex_header *
|
|
dup_vert( struct draw_stage *stage,
|
|
const struct vertex_header *vert,
|
|
unsigned idx )
|
|
{
|
|
struct vertex_header *tmp = stage->tmp[idx];
|
|
const uint vsize = sizeof(struct vertex_header)
|
|
+ stage->draw->vs.num_vs_outputs * 4 * sizeof(float);
|
|
memcpy(tmp, vert, vsize);
|
|
tmp->vertex_id = UNDEFINED_VERTEX_ID;
|
|
return tmp;
|
|
}
|
|
|
|
#endif
|