1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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 #include "lp_debug.h"
32
33 #include "pipe/p_defines.h"
34 #include "util/u_memory.h"
35 #include "util/u_inlines.h"
36 #include "draw/draw_context.h"
37 #include "draw/draw_gs.h"
38 #include "tgsi/tgsi_dump.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 llvmpipe_register_shader(pipe, templ);
46
47 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
48 struct lp_geometry_shader *state;
49
50 state = CALLOC_STRUCT(lp_geometry_shader);
51 if (!state)
52 goto no_state;
53
54 /* debug */
55 if (LP_DEBUG & DEBUG_TGSI && templ->type == PIPE_SHADER_IR_TGSI) {
56 debug_printf("llvmpipe: Create geometry shader %p:\n", (void *)state);
57 tgsi_dump(templ->tokens, 0);
58 }
59
60 /* copy stream output info */
61 if (templ->type == PIPE_SHADER_IR_TGSI)
62 state->no_tokens = !templ->tokens;
63 else
64 state->no_tokens = false;
65 memcpy(&state->stream_output, &templ->stream_output, sizeof state->stream_output);
66
67 if (templ->tokens || templ->type == PIPE_SHADER_IR_NIR) {
68 state->dgs = draw_create_geometry_shader(llvmpipe->draw, templ);
69 if (state->dgs == NULL) {
70 goto no_dgs;
71 }
72 }
73
74 return state;
75
76 no_dgs:
77 FREE(state);
78 no_state:
79 return NULL;
80 }
81
82
83 static void
llvmpipe_bind_gs_state(struct pipe_context * pipe,void * gs)84 llvmpipe_bind_gs_state(struct pipe_context *pipe, void *gs)
85 {
86 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
87
88 llvmpipe->gs = (struct lp_geometry_shader *)gs;
89
90 draw_bind_geometry_shader(llvmpipe->draw,
91 (llvmpipe->gs ? llvmpipe->gs->dgs : NULL));
92
93 llvmpipe->dirty |= LP_NEW_GS;
94 }
95
96
97 static void
llvmpipe_delete_gs_state(struct pipe_context * pipe,void * gs)98 llvmpipe_delete_gs_state(struct pipe_context *pipe, void *gs)
99 {
100 struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
101
102 struct lp_geometry_shader *state =
103 (struct lp_geometry_shader *)gs;
104
105 if (!state) {
106 return;
107 }
108
109 draw_delete_geometry_shader(llvmpipe->draw, state->dgs);
110 FREE(state);
111 }
112
113
114 void
llvmpipe_init_gs_funcs(struct llvmpipe_context * llvmpipe)115 llvmpipe_init_gs_funcs(struct llvmpipe_context *llvmpipe)
116 {
117 llvmpipe->pipe.create_gs_state = llvmpipe_create_gs_state;
118 llvmpipe->pipe.bind_gs_state = llvmpipe_bind_gs_state;
119 llvmpipe->pipe.delete_gs_state = llvmpipe_delete_gs_state;
120 }
121