diff options
Diffstat (limited to 'src/mesa/pipe/draw/draw_unfilled.c')
| -rw-r--r-- | src/mesa/pipe/draw/draw_unfilled.c | 204 |
1 files changed, 0 insertions, 204 deletions
diff --git a/src/mesa/pipe/draw/draw_unfilled.c b/src/mesa/pipe/draw/draw_unfilled.c deleted file mode 100644 index 364bda8b79..0000000000 --- a/src/mesa/pipe/draw/draw_unfilled.c +++ /dev/null @@ -1,204 +0,0 @@ -/************************************************************************** - * - * 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. - * - **************************************************************************/ - -/** - * \brief Drawing stage for handling glPolygonMode(line/point). - * Convert triangles to points or lines as needed. - */ - -/* Authors: Keith Whitwell <keith@tungstengraphics.com> - */ - -#include "pipe/p_util.h" -#include "pipe/p_defines.h" -#include "draw_private.h" - - -struct unfilled_stage { - struct draw_stage stage; - - /** [0] = front face, [1] = back face. - * legal values: PIPE_POLYGON_MODE_FILL, PIPE_POLYGON_MODE_LINE, - * and PIPE_POLYGON_MODE_POINT, - */ - unsigned mode[2]; -}; - - -static INLINE struct unfilled_stage *unfilled_stage( struct draw_stage *stage ) -{ - return (struct unfilled_stage *)stage; -} - - - -static void point( struct draw_stage *stage, - struct vertex_header *v0 ) -{ - struct prim_header tmp; - tmp.v[0] = v0; - stage->next->point( stage->next, &tmp ); -} - -static void line( struct draw_stage *stage, - struct vertex_header *v0, - struct vertex_header *v1 ) -{ - struct prim_header tmp; - tmp.v[0] = v0; - tmp.v[1] = v1; - stage->next->line( stage->next, &tmp ); -} - - -static void points( struct draw_stage *stage, - struct prim_header *header ) -{ - struct vertex_header *v0 = header->v[0]; - struct vertex_header *v1 = header->v[1]; - struct vertex_header *v2 = header->v[2]; - - if (header->edgeflags & 0x1) point( stage, v0 ); - if (header->edgeflags & 0x2) point( stage, v1 ); - if (header->edgeflags & 0x4) point( stage, v2 ); -} - - -static void lines( struct draw_stage *stage, - struct prim_header *header ) -{ - struct vertex_header *v0 = header->v[0]; - struct vertex_header *v1 = header->v[1]; - struct vertex_header *v2 = header->v[2]; - -#if 0 - assert(((header->edgeflags & 0x1) >> 0) == header->v[0]->edgeflag); - assert(((header->edgeflags & 0x2) >> 1) == header->v[1]->edgeflag); - assert(((header->edgeflags & 0x4) >> 2) == header->v[2]->edgeflag); -#endif - - if (header->edgeflags & 0x1) line( stage, v0, v1 ); - if (header->edgeflags & 0x2) line( stage, v1, v2 ); - if (header->edgeflags & 0x4) line( stage, v2, v0 ); -} - - -/* Unfilled tri: - * - * Note edgeflags in the vertex struct is not sufficient as we will - * need to manipulate them when decomposing primitives??? - */ -static void unfilled_tri( struct draw_stage *stage, - struct prim_header *header ) -{ - struct unfilled_stage *unfilled = unfilled_stage(stage); - unsigned mode = unfilled->mode[header->det >= 0.0]; - - switch (mode) { - case PIPE_POLYGON_MODE_FILL: - stage->next->tri( stage->next, header ); - break; - case PIPE_POLYGON_MODE_LINE: - lines( stage, header ); - break; - case PIPE_POLYGON_MODE_POINT: - points( stage, header ); - break; - default: - abort(); - } -} - - -static void unfilled_first_tri( struct draw_stage *stage, - struct prim_header *header ) -{ - struct unfilled_stage *unfilled = unfilled_stage(stage); - - unfilled->mode[0] = stage->draw->rasterizer->fill_ccw; /* front */ - unfilled->mode[1] = stage->draw->rasterizer->fill_cw; /* back */ - - stage->tri = unfilled_tri; - stage->tri( stage, header ); -} - - -static void unfilled_line( struct draw_stage *stage, - struct prim_header *header ) -{ - stage->next->line( stage->next, header ); -} - - -static void unfilled_point( struct draw_stage *stage, - struct prim_header *header ) -{ - stage->next->point( stage->next, header ); -} - - -static void unfilled_flush( struct draw_stage *stage, - unsigned flags ) -{ - stage->next->flush( stage->next, flags ); -} - - -static void unfilled_reset_stipple_counter( struct draw_stage *stage ) -{ - stage->next->reset_stipple_counter( stage->next ); -} - - -static void unfilled_destroy( struct draw_stage *stage ) -{ - draw_free_tmps( stage ); - FREE( stage ); -} - - -/** - * Create unfilled triangle stage. - */ -struct draw_stage *draw_unfilled_stage( struct draw_context *draw ) -{ - struct unfilled_stage *unfilled = CALLOC_STRUCT(unfilled_stage); - - draw_alloc_tmps( &unfilled->stage, 0 ); - - unfilled->stage.draw = draw; - unfilled->stage.next = NULL; - unfilled->stage.tmp = NULL; - unfilled->stage.point = unfilled_point; - unfilled->stage.line = unfilled_line; - unfilled->stage.tri = unfilled_first_tri; - unfilled->stage.flush = unfilled_flush; - unfilled->stage.reset_stipple_counter = unfilled_reset_stipple_counter; - unfilled->stage.destroy = unfilled_destroy; - - return &unfilled->stage; -} |