1/**************************************************************************
2 *
3 * Copyright 2009 VMware, Inc.
4 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29
30#include "pipe/p_defines.h"
31#include "tgsi/tgsi_dump.h"
32#include "tgsi/tgsi_parse.h"
33#include "util/u_memory.h"
34#include "draw/draw_context.h"
35
36#include "lp_context.h"
37#include "lp_debug.h"
38#include "lp_state.h"
39
40
41static void *
42llvmpipe_create_vs_state(struct pipe_context *pipe,
43                         const struct pipe_shader_state *templ)
44{
45   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
46   struct lp_vertex_shader *state;
47
48   state = CALLOC_STRUCT(lp_vertex_shader);
49   if (state == NULL )
50      goto fail;
51
52   /* copy shader tokens, the ones passed in will go away.
53    */
54   state->shader.tokens = tgsi_dup_tokens(templ->tokens);
55   if (state->shader.tokens == NULL)
56      goto fail;
57
58   state->draw_data = draw_create_vertex_shader(llvmpipe->draw, templ);
59   if (state->draw_data == NULL)
60      goto fail;
61
62   if (LP_DEBUG & DEBUG_TGSI) {
63      debug_printf("llvmpipe: Create vertex shader %p:\n", (void *) state);
64      tgsi_dump(templ->tokens, 0);
65   }
66
67   return state;
68
69fail:
70   if (state) {
71      FREE( (void *)state->shader.tokens );
72      FREE( state->draw_data );
73      FREE( state );
74   }
75   return NULL;
76}
77
78
79static void
80llvmpipe_bind_vs_state(struct pipe_context *pipe, void *_vs)
81{
82   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
83   const struct lp_vertex_shader *vs = (const struct lp_vertex_shader *)_vs;
84
85   if (llvmpipe->vs == vs)
86      return;
87
88   draw_bind_vertex_shader(llvmpipe->draw,
89                           vs ? vs->draw_data : NULL);
90
91   llvmpipe->vs = vs;
92
93   llvmpipe->dirty |= LP_NEW_VS;
94}
95
96
97static void
98llvmpipe_delete_vs_state(struct pipe_context *pipe, void *vs)
99{
100   struct llvmpipe_context *llvmpipe = llvmpipe_context(pipe);
101
102   struct lp_vertex_shader *state =
103      (struct lp_vertex_shader *)vs;
104
105   draw_delete_vertex_shader(llvmpipe->draw, state->draw_data);
106   FREE( (void *)state->shader.tokens );
107   FREE( state );
108}
109
110
111
112void
113llvmpipe_init_vs_funcs(struct llvmpipe_context *llvmpipe)
114{
115   llvmpipe->pipe.create_vs_state = llvmpipe_create_vs_state;
116   llvmpipe->pipe.bind_vs_state   = llvmpipe_bind_vs_state;
117   llvmpipe->pipe.delete_vs_state = llvmpipe_delete_vs_state;
118}
119