diff options
Diffstat (limited to 'src/gallium/auxiliary/draw/draw_pipe.h')
-rw-r--r-- | src/gallium/auxiliary/draw/draw_pipe.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pipe.h b/src/gallium/auxiliary/draw/draw_pipe.h new file mode 100644 index 0000000..5b97ca5 --- /dev/null +++ b/src/gallium/auxiliary/draw/draw_pipe.h @@ -0,0 +1,110 @@ +/************************************************************************** + * + * 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) */ + + + +/** + * Base class for all primitive drawing stages. + */ +struct draw_stage +{ + struct draw_context *draw; /**< parent context */ + + struct draw_stage *next; /**< next stage in pipeline */ + + 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 void draw_alloc_temp_verts( struct draw_stage *stage, unsigned nr ); + + + + +/** + * 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->num_vs_outputs * 4 * sizeof(float); + memcpy(tmp, vert, vsize); + tmp->vertex_id = UNDEFINED_VERTEX_ID; + return tmp; +} + +#endif |