1/**********************************************************
2 * Copyright 2008-2009 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 "util/u_inlines.h"
27#include "util/u_math.h"
28#include "util/u_memory.h"
29#include "util/u_bitmask.h"
30#include "tgsi/tgsi_parse.h"
31#include "draw/draw_context.h"
32
33#include "svga_context.h"
34#include "svga_hw_reg.h"
35#include "svga_cmd.h"
36#include "svga_debug.h"
37#include "svga_shader.h"
38
39
40void *
41svga_create_fs_state(struct pipe_context *pipe,
42                     const struct pipe_shader_state *templ)
43{
44   struct svga_context *svga = svga_context(pipe);
45   struct svga_fragment_shader *fs;
46
47   fs = CALLOC_STRUCT(svga_fragment_shader);
48   if (!fs)
49      return NULL;
50
51   SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_CREATEFS);
52
53   fs->base.tokens = tgsi_dup_tokens(templ->tokens);
54
55   /* Collect basic info that we'll need later:
56    */
57   tgsi_scan_shader(fs->base.tokens, &fs->base.info);
58
59   fs->base.id = svga->debug.shader_id++;
60
61   fs->generic_inputs = svga_get_generic_inputs_mask(&fs->base.info);
62
63   svga_remap_generics(fs->generic_inputs, fs->generic_remap_table);
64
65   fs->draw_shader = draw_create_fragment_shader(svga->swtnl.draw, templ);
66
67   SVGA_STATS_TIME_POP(svga_sws(svga));
68   return fs;
69}
70
71
72void
73svga_bind_fs_state(struct pipe_context *pipe, void *shader)
74{
75   struct svga_fragment_shader *fs = (struct svga_fragment_shader *) shader;
76   struct svga_context *svga = svga_context(pipe);
77
78   svga->curr.fs = fs;
79   svga->dirty |= SVGA_NEW_FS;
80}
81
82
83static void
84svga_delete_fs_state(struct pipe_context *pipe, void *shader)
85{
86   struct svga_context *svga = svga_context(pipe);
87   struct svga_fragment_shader *fs = (struct svga_fragment_shader *) shader;
88   struct svga_fragment_shader *next_fs;
89   struct svga_shader_variant *variant, *tmp;
90
91   svga_hwtnl_flush_retry(svga);
92
93   assert(fs->base.parent == NULL);
94
95   while (fs) {
96      next_fs = (struct svga_fragment_shader *) fs->base.next;
97
98      draw_delete_fragment_shader(svga->swtnl.draw, fs->draw_shader);
99
100      for (variant = fs->base.variants; variant; variant = tmp) {
101         tmp = variant->next;
102
103         /* Check if deleting currently bound shader */
104         if (variant == svga->state.hw_draw.fs) {
105            SVGA_RETRY(svga, svga_set_shader(svga, SVGA3D_SHADERTYPE_PS, NULL));
106            svga->state.hw_draw.fs = NULL;
107         }
108
109         svga_destroy_shader_variant(svga, variant);
110      }
111
112      FREE((void *)fs->base.tokens);
113      FREE(fs);
114      fs = next_fs;
115   }
116}
117
118
119void
120svga_init_fs_functions(struct svga_context *svga)
121{
122   svga->pipe.create_fs_state = svga_create_fs_state;
123   svga->pipe.bind_fs_state = svga_bind_fs_state;
124   svga->pipe.delete_fs_state = svga_delete_fs_state;
125}
126