diff options
Diffstat (limited to 'src/mesa/pipe/softpipe/g_context.c')
| -rw-r--r-- | src/mesa/pipe/softpipe/g_context.c | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/mesa/pipe/softpipe/g_context.c b/src/mesa/pipe/softpipe/g_context.c new file mode 100644 index 0000000000..c3329b5c7d --- /dev/null +++ b/src/mesa/pipe/softpipe/g_context.c @@ -0,0 +1,135 @@ +/************************************************************************** + * + * 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. + * + **************************************************************************/ + +/* Author: + * Keith Whitwell <keith@tungstengraphics.com> + */ + +#include "imports.h" +#include "macros.h" + +#include "tnl/t_context.h" +#include "vf/vf.h" + +#include "g_context.h" +#include "g_prim.h" +#include "g_state.h" +#include "g_draw.h" + +static void generic_destroy( struct softpipe_context *softpipe ) +{ + struct generic_context *generic = generic_context( softpipe ); + + draw_destroy( generic->draw ); + + FREE( generic ); +} + + +static void generic_draw_vb( struct softpipe_context *softpipe, + struct vertex_buffer *VB ) +{ + struct generic_context *generic = generic_context( softpipe ); + + if (generic->dirty) + generic_update_derived( generic ); + + draw_vb( generic->draw, VB ); +} + +struct softpipe_context *generic_create( void ) +{ + struct generic_context *generic = CALLOC_STRUCT(generic_context); + + generic->softpipe.destroy = generic_destroy; + generic->softpipe.set_clip_state = generic_set_clip_state; + generic->softpipe.set_viewport = generic_set_viewport; + generic->softpipe.set_setup_state = generic_set_setup_state; + generic->softpipe.set_scissor_rect = generic_set_scissor_rect; + generic->softpipe.set_fs_state = generic_set_fs_state; + generic->softpipe.set_polygon_stipple = generic_set_polygon_stipple; + generic->softpipe.set_cbuf_state = generic_set_cbuf_state; + generic->softpipe.draw_vb = generic_draw_vb; + + + + generic->prim.setup = prim_setup( generic ); + generic->prim.unfilled = prim_unfilled( generic ); + generic->prim.twoside = prim_twoside( generic ); + generic->prim.offset = prim_offset( generic ); + generic->prim.clip = prim_clip( generic ); + generic->prim.flatshade = prim_flatshade( generic ); + generic->prim.cull = prim_cull( generic ); + + + generic->draw = draw_create( generic ); + + ASSIGN_4V( generic->plane[0], -1, 0, 0, 1 ); + ASSIGN_4V( generic->plane[1], 1, 0, 0, 1 ); + ASSIGN_4V( generic->plane[2], 0, -1, 0, 1 ); + ASSIGN_4V( generic->plane[3], 0, 1, 0, 1 ); + ASSIGN_4V( generic->plane[4], 0, 0, 1, 1 ); /* yes these are correct */ + ASSIGN_4V( generic->plane[5], 0, 0, -1, 1 ); /* mesa's a bit wonky */ + generic->nr_planes = 6; + + return &generic->softpipe; +} + + + + + + +#define MAX_VERTEX_SIZE ((2 + FRAG_ATTRIB_MAX) * 4 * sizeof(GLfloat)) + +void prim_alloc_tmps( struct prim_stage *stage, GLuint nr ) +{ + stage->nr_tmps = nr; + + if (nr) { + GLubyte *store = MALLOC(MAX_VERTEX_SIZE * nr); + GLuint i; + + stage->tmp = MALLOC(sizeof(struct vertex_header *) * nr); + + for (i = 0; i < nr; i++) + stage->tmp[i] = (struct vertex_header *)(store + i * MAX_VERTEX_SIZE); + } +} + +void prim_free_tmps( struct prim_stage *stage ) +{ + if (stage->tmp) { + FREE(stage->tmp[0]); + FREE(stage->tmp); + } +} + + + + + |