1 /**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 #include "lp_context.h"
29 #include "lp_state.h"
30 #include "lp_texture.h"
31
32 #include "pipe/p_defines.h"
33 #include "util/u_memory.h"
34 #include "util/u_inlines.h"
35 #include "draw/draw_context.h"
36 #include "tgsi/tgsi_dump.h"
37 #include "tgsi/tgsi_scan.h"
38 #include "tgsi/tgsi_parse.h"
39
40
41 static void *
llvmpipe_create_gs_state(struct pipe_context * pipe,const struct pipe_shader_state * templ)42 llvmpipe_create_gs_state(struct pipe_context *pipe,
43 const struct pipe_shader_state *templ)
44 {
45 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
46 struct lp_geometry_shader *state;
47
48 state = CALLOC_STRUCT(lp_geometry_shader);
49 if (state == NULL )
50 goto fail;
51
52 /* debug */
53 if (0)
54 tgsi_dump(templ->tokens, 0);
55
56 /* copy shader tokens, the ones passed in will go away.
57 */
58 state->shader.tokens = tgsi_dup_tokens(templ->tokens);
59 if (state->shader.tokens == NULL)
60 goto fail;
61
62 state->draw_data = draw_create_geometry_shader(llvmpipe->draw, templ);
63 if (state->draw_data == NULL)
64 goto fail;
65
66 return state;
67
68 fail:
69 if (state) {
70 FREE( (void *)state->shader.tokens );
71 FREE( state->draw_data );
72 FREE( state );
73 }
74 return NULL;
75 }
76
77
78 static void
llvmpipe_bind_gs_state(struct pipe_context * pipe,void * gs)79 llvmpipe_bind_gs_state(struct pipe_context *pipe, void *gs)
80 {
81 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
82
83 llvmpipe->gs = (struct lp_geometry_shader *)gs;
84
85 draw_bind_geometry_shader(llvmpipe->draw,
86 (llvmpipe->gs ? llvmpipe->gs->draw_data : NULL));
87
88 llvmpipe->dirty |= LP_NEW_GS;
89 }
90
91
92 static void
llvmpipe_delete_gs_state(struct pipe_context * pipe,void * gs)93 llvmpipe_delete_gs_state(struct pipe_context *pipe, void *gs)
94 {
95 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
96
97 struct lp_geometry_shader *state =
98 (struct lp_geometry_shader *)gs;
99
100 draw_delete_geometry_shader(llvmpipe->draw,
101 (state) ? state->draw_data : 0);
102 FREE(state);
103 }
104
105
106 void
llvmpipe_init_gs_funcs(struct llvmpipe_context * llvmpipe)107 llvmpipe_init_gs_funcs(struct llvmpipe_context *llvmpipe)
108 {
109 llvmpipe->pipe.create_gs_state = llvmpipe_create_gs_state;
110 llvmpipe->pipe.bind_gs_state = llvmpipe_bind_gs_state;
111 llvmpipe->pipe.delete_gs_state = llvmpipe_delete_gs_state;
112 }
113