1 /**********************************************************
2 * Copyright 2014 VMware, Inc. All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 **********************************************************/
25
26 #include "draw/draw_context.h"
27 #include "util/u_inlines.h"
28 #include "util/u_memory.h"
29 #include "util/u_bitmask.h"
30 #include "tgsi/tgsi_parse.h"
31 #include "tgsi/tgsi_text.h"
32
33 #include "svga_context.h"
34 #include "svga_cmd.h"
35 #include "svga_debug.h"
36 #include "svga_shader.h"
37 #include "svga_streamout.h"
38
39 static void *
svga_create_gs_state(struct pipe_context * pipe,const struct pipe_shader_state * templ)40 svga_create_gs_state(struct pipe_context *pipe,
41 const struct pipe_shader_state *templ)
42 {
43 struct svga_context *svga = svga_context(pipe);
44 struct svga_geometry_shader *gs = CALLOC_STRUCT(svga_geometry_shader);
45
46 if (!gs)
47 return NULL;
48
49 SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CREATEGS);
50
51 gs->base.tokens = tgsi_dup_tokens(templ->tokens);
52
53 /* Collect basic info that we'll need later:
54 */
55 tgsi_scan_shader(gs->base.tokens, &gs->base.info);
56
57 gs->draw_shader = draw_create_geometry_shader(svga->swtnl.draw, templ);
58
59 gs->base.id = svga->debug.shader_id++;
60
61 gs->generic_outputs = svga_get_generic_outputs_mask(&gs->base.info);
62
63 /* check for any stream output declarations */
64 if (templ->stream_output.num_outputs) {
65 gs->base.stream_output = svga_create_stream_output(svga, &gs->base,
66 &templ->stream_output);
67 }
68
69 SVGA_STATS_TIME_POP(svga_sws(svga));
70 return gs;
71 }
72
73
74 static void
svga_bind_gs_state(struct pipe_context * pipe,void * shader)75 svga_bind_gs_state(struct pipe_context *pipe, void *shader)
76 {
77 struct svga_geometry_shader *gs = (struct svga_geometry_shader *)shader;
78 struct svga_context *svga = svga_context(pipe);
79
80 svga->curr.user_gs = gs;
81 svga->dirty |= SVGA_NEW_GS;
82 }
83
84
85 static void
svga_delete_gs_state(struct pipe_context * pipe,void * shader)86 svga_delete_gs_state(struct pipe_context *pipe, void *shader)
87 {
88 struct svga_context *svga = svga_context(pipe);
89 struct svga_geometry_shader *gs = (struct svga_geometry_shader *)shader;
90 struct svga_geometry_shader *next_gs;
91 struct svga_shader_variant *variant, *tmp;
92
93 svga_hwtnl_flush_retry(svga);
94
95 /* Start deletion from the original geometry shader state */
96 if (gs->base.parent != NULL)
97 gs = (struct svga_geometry_shader *)gs->base.parent;
98
99 /* Free the list of geometry shaders */
100 while (gs) {
101 next_gs = (struct svga_geometry_shader *)gs->base.next;
102
103 if (gs->base.stream_output != NULL)
104 svga_delete_stream_output(svga, gs->base.stream_output);
105
106 draw_delete_geometry_shader(svga->swtnl.draw, gs->draw_shader);
107
108 for (variant = gs->base.variants; variant; variant = tmp) {
109 tmp = variant->next;
110
111 /* Check if deleting currently bound shader */
112 if (variant == svga->state.hw_draw.gs) {
113 SVGA_RETRY(svga, svga_set_shader(svga, SVGA3D_SHADERTYPE_GS, NULL));
114 svga->state.hw_draw.gs = NULL;
115 }
116
117 svga_destroy_shader_variant(svga, variant);
118 }
119
120 FREE((void *)gs->base.tokens);
121 FREE(gs);
122 gs = next_gs;
123 }
124 }
125
126
127 void
svga_init_gs_functions(struct svga_context * svga)128 svga_init_gs_functions(struct svga_context *svga)
129 {
130 svga->pipe.create_gs_state = svga_create_gs_state;
131 svga->pipe.bind_gs_state = svga_bind_gs_state;
132 svga->pipe.delete_gs_state = svga_delete_gs_state;
133 }
134