1/**********************************************************
2 * Copyright 2018-2020 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 "pipe/p_context.h"
27#include "util/u_memory.h"
28#include "tgsi/tgsi_parse.h"
29
30#include "svga_context.h"
31#include "svga_shader.h"
32
33static void
34svga_set_tess_state(struct pipe_context *pipe,
35                    const float default_outer_level[4],
36                    const float default_inner_level[2])
37{
38   struct svga_context *svga = svga_context(pipe);
39   unsigned i;
40
41   for (i = 0; i < 4; i++) {
42      svga->curr.default_tesslevels[i] = default_outer_level[i];
43   }
44   for (i = 0; i < 2; i++) {
45      svga->curr.default_tesslevels[i + 4] = default_inner_level[i];
46   }
47}
48
49
50static void
51svga_set_patch_vertices(struct pipe_context *pipe, uint8_t patch_vertices)
52{
53   struct svga_context *svga = svga_context(pipe);
54
55   svga->patch_vertices = patch_vertices;
56}
57
58
59static void *
60svga_create_tcs_state(struct pipe_context *pipe,
61                      const struct pipe_shader_state *templ)
62{
63   struct svga_context *svga = svga_context(pipe);
64   struct svga_tcs_shader *tcs;
65
66   tcs = CALLOC_STRUCT(svga_tcs_shader);
67   if (!tcs)
68      return NULL;
69
70   SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CREATETCS);
71
72   tcs->base.tokens = tgsi_dup_tokens(templ->tokens);
73
74   /* Collect basic info that we'll need later:
75    */
76   tgsi_scan_shader(tcs->base.tokens, &tcs->base.info);
77
78   tcs->base.id = svga->debug.shader_id++;
79
80   tcs->generic_outputs = svga_get_generic_outputs_mask(&tcs->base.info);
81
82   SVGA_STATS_TIME_POP(svga_sws(svga));
83   return tcs;
84}
85
86
87static void
88svga_bind_tcs_state(struct pipe_context *pipe, void *shader)
89{
90   struct svga_tcs_shader *tcs = (struct svga_tcs_shader *) shader;
91   struct svga_context *svga = svga_context(pipe);
92
93   if (tcs == svga->curr.tcs)
94      return;
95
96   svga->curr.tcs = tcs;
97   svga->dirty |= SVGA_NEW_TCS;
98}
99
100
101static void
102svga_delete_tcs_state(struct pipe_context *pipe, void *shader)
103{
104   struct svga_context *svga = svga_context(pipe);
105   struct svga_tcs_shader *tcs = (struct svga_tcs_shader *) shader;
106   struct svga_tcs_shader *next_tcs;
107   struct svga_shader_variant *variant, *tmp;
108
109   svga_hwtnl_flush_retry(svga);
110
111   assert(tcs->base.parent == NULL);
112
113   while (tcs) {
114      next_tcs = (struct svga_tcs_shader *)tcs->base.next;
115      for (variant = tcs->base.variants; variant; variant = tmp) {
116         tmp = variant->next;
117
118         /* Check if deleting currently bound shader */
119         if (variant == svga->state.hw_draw.tcs) {
120            SVGA_RETRY(svga, svga_set_shader(svga, SVGA3D_SHADERTYPE_HS, NULL));
121            svga->state.hw_draw.tcs = NULL;
122         }
123
124         svga_destroy_shader_variant(svga, variant);
125      }
126
127      FREE((void *)tcs->base.tokens);
128      FREE(tcs);
129      tcs = next_tcs;
130   }
131}
132
133
134void
135svga_cleanup_tcs_state(struct svga_context *svga)
136{
137   if (svga->tcs.passthrough_tcs) {
138      svga_delete_tcs_state(&svga->pipe, svga->tcs.passthrough_tcs);
139   }
140}
141
142
143static void *
144svga_create_tes_state(struct pipe_context *pipe,
145                      const struct pipe_shader_state *templ)
146{
147   struct svga_context *svga = svga_context(pipe);
148   struct svga_tes_shader *tes;
149
150   tes = CALLOC_STRUCT(svga_tes_shader);
151   if (!tes)
152      return NULL;
153
154   SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CREATETES);
155
156   tes->base.tokens = tgsi_dup_tokens(templ->tokens);
157
158   /* Collect basic info that we'll need later:
159    */
160   tgsi_scan_shader(tes->base.tokens, &tes->base.info);
161
162   tes->base.id = svga->debug.shader_id++;
163
164   tes->generic_inputs = svga_get_generic_inputs_mask(&tes->base.info);
165
166   SVGA_STATS_TIME_POP(svga_sws(svga));
167   return tes;
168}
169
170
171static void
172svga_bind_tes_state(struct pipe_context *pipe, void *shader)
173{
174   struct svga_tes_shader *tes = (struct svga_tes_shader *) shader;
175   struct svga_context *svga = svga_context(pipe);
176
177   if (tes == svga->curr.tes)
178      return;
179
180   svga->curr.tes = tes;
181   svga->dirty |= SVGA_NEW_TES;
182}
183
184
185static void
186svga_delete_tes_state(struct pipe_context *pipe, void *shader)
187{
188   struct svga_context *svga = svga_context(pipe);
189   struct svga_tes_shader *tes = (struct svga_tes_shader *) shader;
190   struct svga_tes_shader *next_tes;
191   struct svga_shader_variant *variant, *tmp;
192
193   svga_hwtnl_flush_retry(svga);
194
195   assert(tes->base.parent == NULL);
196
197   while (tes) {
198      next_tes = (struct svga_tes_shader *)tes->base.next;
199      for (variant = tes->base.variants; variant; variant = tmp) {
200         tmp = variant->next;
201
202         /* Check if deleting currently bound shader */
203         if (variant == svga->state.hw_draw.tes) {
204            SVGA_RETRY(svga, svga_set_shader(svga, SVGA3D_SHADERTYPE_DS, NULL));
205            svga->state.hw_draw.tes = NULL;
206         }
207
208         svga_destroy_shader_variant(svga, variant);
209      }
210
211      FREE((void *)tes->base.tokens);
212      FREE(tes);
213      tes = next_tes;
214   }
215}
216
217
218void
219svga_init_ts_functions(struct svga_context *svga)
220{
221   svga->pipe.set_tess_state = svga_set_tess_state;
222   svga->pipe.set_patch_vertices = svga_set_patch_vertices;
223   svga->pipe.create_tcs_state = svga_create_tcs_state;
224   svga->pipe.bind_tcs_state = svga_bind_tcs_state;
225   svga->pipe.delete_tcs_state = svga_delete_tcs_state;
226   svga->pipe.create_tes_state = svga_create_tes_state;
227   svga->pipe.bind_tes_state = svga_bind_tes_state;
228   svga->pipe.delete_tes_state = svga_delete_tes_state;
229}
230