forked from KolibriOS/kolibrios
147 lines
4.5 KiB
C
147 lines
4.5 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.
|
|
*
|
|
**************************************************************************/
|
|
|
|
/**
|
|
* \file
|
|
* Vertex buffer drawing stage.
|
|
*
|
|
* \author Keith Whitwell <keith@tungstengraphics.com>
|
|
* \author Jose Fonseca <jrfonsec@tungstengraphics.com>
|
|
*/
|
|
|
|
#ifndef DRAW_VBUF_H_
|
|
#define DRAW_VBUF_H_
|
|
|
|
|
|
#include "pipe/p_compiler.h"
|
|
|
|
|
|
struct pipe_rasterizer_state;
|
|
struct draw_context;
|
|
struct vertex_info;
|
|
struct pipe_query_data_pipeline_statistics;
|
|
|
|
|
|
/**
|
|
* Interface for hardware vertex buffer rendering.
|
|
*/
|
|
struct vbuf_render {
|
|
|
|
/**
|
|
* Driver limits. May be tuned lower to improve cache hits on
|
|
* index list.
|
|
*/
|
|
unsigned max_indices;
|
|
unsigned max_vertex_buffer_bytes;
|
|
|
|
/**
|
|
* Query if the hardware driver needs assistance for a particular
|
|
* combination of rasterizer state and primitive.
|
|
*
|
|
* Currently optional.
|
|
*/
|
|
boolean (*need_pipeline)(const struct vbuf_render *render,
|
|
const struct pipe_rasterizer_state *rasterizer,
|
|
unsigned int prim );
|
|
|
|
|
|
/**
|
|
* Get the hardware vertex format.
|
|
*
|
|
* XXX: have this in draw_context instead?
|
|
*/
|
|
const struct vertex_info *(*get_vertex_info)( struct vbuf_render * );
|
|
|
|
/**
|
|
* Request a destination for vertices.
|
|
* Hardware renderers will use ttm memory, others will just malloc
|
|
* something.
|
|
*/
|
|
boolean (*allocate_vertices)( struct vbuf_render *,
|
|
ushort vertex_size,
|
|
ushort nr_vertices );
|
|
|
|
void *(*map_vertices)( struct vbuf_render * );
|
|
void (*unmap_vertices)( struct vbuf_render *,
|
|
ushort min_index,
|
|
ushort max_index );
|
|
|
|
/**
|
|
* Notify the renderer of the current primitive when it changes.
|
|
* Must succeed for TRIANGLES, LINES and POINTS. Other prims at
|
|
* the discretion of the driver, for the benefit of the passthrough
|
|
* path.
|
|
*/
|
|
void (*set_primitive)( struct vbuf_render *, unsigned prim );
|
|
|
|
/**
|
|
* Draw indexed primitives. Note that indices are ushort. The driver
|
|
* must complete this call, if necessary splitting the index list itself.
|
|
*/
|
|
void (*draw_elements)( struct vbuf_render *,
|
|
const ushort *indices,
|
|
uint nr_indices );
|
|
|
|
/* Draw non-indexed primitives.
|
|
*/
|
|
void (*draw_arrays)( struct vbuf_render *,
|
|
unsigned start,
|
|
uint nr );
|
|
|
|
/**
|
|
* Called when vbuf is done with this set of vertices:
|
|
*/
|
|
void (*release_vertices)( struct vbuf_render * );
|
|
|
|
void (*destroy)( struct vbuf_render * );
|
|
|
|
|
|
/**
|
|
* Called after writing data to the stream out buffers
|
|
*/
|
|
void (*set_stream_output_info)( struct vbuf_render *vbufr,
|
|
unsigned primitive_count,
|
|
unsigned vertices_count,
|
|
unsigned primitive_generated );
|
|
|
|
/**
|
|
* Called after all relevant statistics have been accumulated.
|
|
*/
|
|
void (*pipeline_statistics)(
|
|
struct vbuf_render *vbufr,
|
|
const struct pipe_query_data_pipeline_statistics *stats );
|
|
};
|
|
|
|
|
|
|
|
struct draw_stage *
|
|
draw_vbuf_stage( struct draw_context *draw,
|
|
struct vbuf_render *render );
|
|
|
|
|
|
#endif /*DRAW_VBUF_H_*/
|