mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-24 23:56:49 +03:00
253 lines
8.3 KiB
C
253 lines
8.3 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_PT_H
|
||
|
|
#define DRAW_PT_H
|
||
|
|
|
||
|
|
#include "pipe/p_compiler.h"
|
||
|
|
|
||
|
|
struct draw_pt_middle_end;
|
||
|
|
struct draw_context;
|
||
|
|
struct draw_prim_info;
|
||
|
|
struct draw_vertex_info;
|
||
|
|
|
||
|
|
|
||
|
|
#define PT_SHADE 0x1
|
||
|
|
#define PT_CLIPTEST 0x2
|
||
|
|
#define PT_PIPELINE 0x4
|
||
|
|
#define PT_MAX_MIDDLE 0x8
|
||
|
|
|
||
|
|
|
||
|
|
/* The "front end" - prepare sets of fetch, draw elements for the
|
||
|
|
* middle end.
|
||
|
|
*
|
||
|
|
* The fetch elements are indices to the vertices. The draw elements are
|
||
|
|
* indices to the fetched vertices. When both arrays of elements are both
|
||
|
|
* linear, middle->run_linear is called; When only the fetch elements are
|
||
|
|
* linear, middle->run_linear_elts is called; Otherwise, middle->run is
|
||
|
|
* called.
|
||
|
|
*
|
||
|
|
* When the number of the draw elements exceeds max_vertex of the middle end,
|
||
|
|
* the draw elements (as well as the fetch elements) are splitted and the
|
||
|
|
* middle end is called multiple times.
|
||
|
|
*
|
||
|
|
* Currenly there is:
|
||
|
|
* - vsplit - catchall implementation, splits big prims
|
||
|
|
*/
|
||
|
|
struct draw_pt_front_end {
|
||
|
|
void (*prepare)( struct draw_pt_front_end *,
|
||
|
|
unsigned prim,
|
||
|
|
struct draw_pt_middle_end *,
|
||
|
|
unsigned opt );
|
||
|
|
|
||
|
|
void (*run)( struct draw_pt_front_end *,
|
||
|
|
unsigned start,
|
||
|
|
unsigned count );
|
||
|
|
|
||
|
|
void (*flush)( struct draw_pt_front_end *, unsigned flags );
|
||
|
|
void (*destroy)( struct draw_pt_front_end * );
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/* The "middle end" - prepares actual hardware vertices for the
|
||
|
|
* hardware backend.
|
||
|
|
*
|
||
|
|
* prim_flags is as defined by pipe_draw_info::flags.
|
||
|
|
*
|
||
|
|
* Currently two versions of this:
|
||
|
|
* - fetch, vertex shade, cliptest, prim-pipeline
|
||
|
|
* - fetch, emit (ie passthrough)
|
||
|
|
*/
|
||
|
|
struct draw_pt_middle_end {
|
||
|
|
void (*prepare)( struct draw_pt_middle_end *,
|
||
|
|
unsigned prim,
|
||
|
|
unsigned opt,
|
||
|
|
unsigned *max_vertices );
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Bind/update parameter state such as constants, viewport dims
|
||
|
|
* and clip planes. Basically, stuff which isn't "baked" into the
|
||
|
|
* shader or pipeline state.
|
||
|
|
*/
|
||
|
|
void (*bind_parameters)(struct draw_pt_middle_end *);
|
||
|
|
|
||
|
|
void (*run)( struct draw_pt_middle_end *,
|
||
|
|
const unsigned *fetch_elts,
|
||
|
|
unsigned fetch_count,
|
||
|
|
const ushort *draw_elts,
|
||
|
|
unsigned draw_count,
|
||
|
|
unsigned prim_flags );
|
||
|
|
|
||
|
|
void (*run_linear)(struct draw_pt_middle_end *,
|
||
|
|
unsigned start,
|
||
|
|
unsigned count,
|
||
|
|
unsigned prim_flags );
|
||
|
|
|
||
|
|
/* Transform all vertices in a linear range and then draw them with
|
||
|
|
* the supplied element list. May fail and return FALSE.
|
||
|
|
*/
|
||
|
|
boolean (*run_linear_elts)( struct draw_pt_middle_end *,
|
||
|
|
unsigned fetch_start,
|
||
|
|
unsigned fetch_count,
|
||
|
|
const ushort *draw_elts,
|
||
|
|
unsigned draw_count,
|
||
|
|
unsigned prim_flags );
|
||
|
|
|
||
|
|
int (*get_max_vertex_count)( struct draw_pt_middle_end * );
|
||
|
|
|
||
|
|
void (*finish)( struct draw_pt_middle_end * );
|
||
|
|
void (*destroy)( struct draw_pt_middle_end * );
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/* The "back end" - supplied by the driver, defined in draw_vbuf.h.
|
||
|
|
*/
|
||
|
|
struct vbuf_render;
|
||
|
|
struct vertex_header;
|
||
|
|
|
||
|
|
|
||
|
|
/* Frontends:
|
||
|
|
*
|
||
|
|
* Currently only the general-purpose vsplit implementation.
|
||
|
|
*/
|
||
|
|
struct draw_pt_front_end *draw_pt_vsplit(struct draw_context *draw);
|
||
|
|
|
||
|
|
|
||
|
|
/* Middle-ends:
|
||
|
|
*
|
||
|
|
* Currently one general-purpose case which can do all possibilities,
|
||
|
|
* at the slight expense of creating a vertex_header in some cases
|
||
|
|
* unecessarily.
|
||
|
|
*
|
||
|
|
* The special case fetch_emit code avoids pipeline vertices
|
||
|
|
* altogether and builds hardware vertices directly from API
|
||
|
|
* vertex_elements.
|
||
|
|
*/
|
||
|
|
struct draw_pt_middle_end *draw_pt_fetch_emit( struct draw_context *draw );
|
||
|
|
struct draw_pt_middle_end *draw_pt_middle_fse( struct draw_context *draw );
|
||
|
|
struct draw_pt_middle_end *draw_pt_fetch_pipeline_or_emit(struct draw_context *draw);
|
||
|
|
struct draw_pt_middle_end *draw_pt_fetch_pipeline_or_emit_llvm(struct draw_context *draw);
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
* HW vertex emit:
|
||
|
|
*/
|
||
|
|
struct pt_emit;
|
||
|
|
|
||
|
|
void draw_pt_emit_prepare( struct pt_emit *emit,
|
||
|
|
unsigned prim,
|
||
|
|
unsigned *max_vertices );
|
||
|
|
|
||
|
|
void draw_pt_emit( struct pt_emit *emit,
|
||
|
|
const struct draw_vertex_info *vert_info,
|
||
|
|
const struct draw_prim_info *prim_info);
|
||
|
|
|
||
|
|
void draw_pt_emit_linear( struct pt_emit *emit,
|
||
|
|
const struct draw_vertex_info *vert_info,
|
||
|
|
const struct draw_prim_info *prim_info);
|
||
|
|
|
||
|
|
void draw_pt_emit_destroy( struct pt_emit *emit );
|
||
|
|
|
||
|
|
struct pt_emit *draw_pt_emit_create( struct draw_context *draw );
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
* HW stream output emit:
|
||
|
|
*/
|
||
|
|
struct pt_so_emit;
|
||
|
|
|
||
|
|
void draw_pt_so_emit_prepare(struct pt_so_emit *emit, boolean use_pre_clip_pos);
|
||
|
|
|
||
|
|
void draw_pt_so_emit( struct pt_so_emit *emit,
|
||
|
|
const struct draw_vertex_info *vert_info,
|
||
|
|
const struct draw_prim_info *prim_info );
|
||
|
|
|
||
|
|
void draw_pt_so_emit_destroy( struct pt_so_emit *emit );
|
||
|
|
|
||
|
|
struct pt_so_emit *draw_pt_so_emit_create( struct draw_context *draw );
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
* API vertex fetch:
|
||
|
|
*/
|
||
|
|
|
||
|
|
struct pt_fetch;
|
||
|
|
void draw_pt_fetch_prepare( struct pt_fetch *fetch,
|
||
|
|
unsigned vertex_input_count,
|
||
|
|
unsigned vertex_size,
|
||
|
|
unsigned instance_id_index );
|
||
|
|
|
||
|
|
void draw_pt_fetch_run( struct pt_fetch *fetch,
|
||
|
|
const unsigned *elts,
|
||
|
|
unsigned count,
|
||
|
|
char *verts );
|
||
|
|
|
||
|
|
void draw_pt_fetch_run_linear( struct pt_fetch *fetch,
|
||
|
|
unsigned start,
|
||
|
|
unsigned count,
|
||
|
|
char *verts );
|
||
|
|
|
||
|
|
void draw_pt_fetch_destroy( struct pt_fetch *fetch );
|
||
|
|
|
||
|
|
struct pt_fetch *draw_pt_fetch_create( struct draw_context *draw );
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
* Post-VS: cliptest, rhw, viewport
|
||
|
|
*/
|
||
|
|
struct pt_post_vs;
|
||
|
|
|
||
|
|
boolean draw_pt_post_vs_run( struct pt_post_vs *pvs,
|
||
|
|
struct draw_vertex_info *info,
|
||
|
|
const struct draw_prim_info *prim_info );
|
||
|
|
|
||
|
|
void draw_pt_post_vs_prepare( struct pt_post_vs *pvs,
|
||
|
|
boolean clip_xy,
|
||
|
|
boolean clip_z,
|
||
|
|
boolean clip_user,
|
||
|
|
boolean guard_band,
|
||
|
|
boolean bypass_viewport,
|
||
|
|
boolean clip_halfz,
|
||
|
|
boolean need_edgeflags );
|
||
|
|
|
||
|
|
struct pt_post_vs *draw_pt_post_vs_create( struct draw_context *draw );
|
||
|
|
|
||
|
|
void draw_pt_post_vs_destroy( struct pt_post_vs *pvs );
|
||
|
|
|
||
|
|
|
||
|
|
/*******************************************************************************
|
||
|
|
* Utils:
|
||
|
|
*/
|
||
|
|
void draw_pt_split_prim(unsigned prim, unsigned *first, unsigned *incr);
|
||
|
|
unsigned draw_pt_trim_count(unsigned count, unsigned first, unsigned incr);
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|