draw_vs.c revision 4a49301e 
1/**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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 TUNGSTEN GRAPHICS 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 /*
29  * Authors:
30  *   Keith Whitwell <keith@tungstengraphics.com>
31  *   Brian Paul
32  */
33
34#include "util/u_math.h"
35#include "util/u_memory.h"
36
37#include "pipe/p_shader_tokens.h"
38
39#include "draw_private.h"
40#include "draw_context.h"
41#include "draw_vs.h"
42
43#include "translate/translate.h"
44#include "translate/translate_cache.h"
45
46#include "tgsi/tgsi_exec.h"
47
48
49
50
51void draw_vs_set_constants( struct draw_context *draw,
52                            const float (*constants)[4],
53                            unsigned size )
54{
55   if (((uintptr_t)constants) & 0xf) {
56      if (size > draw->vs.const_storage_size) {
57         if (draw->vs.aligned_constant_storage)
58            align_free((void *)draw->vs.aligned_constant_storage);
59         draw->vs.aligned_constant_storage = align_malloc( size, 16 );
60      }
61      memcpy( (void*)draw->vs.aligned_constant_storage,
62              constants,
63              size );
64      constants = draw->vs.aligned_constant_storage;
65   }
66
67   draw->vs.aligned_constants = constants;
68   draw_vs_aos_machine_constants( draw->vs.aos_machine, constants );
69}
70
71
72void draw_vs_set_viewport( struct draw_context *draw,
73                           const struct pipe_viewport_state *viewport )
74{
75   draw_vs_aos_machine_viewport( draw->vs.aos_machine, viewport );
76}
77
78
79
80struct draw_vertex_shader *
81draw_create_vertex_shader(struct draw_context *draw,
82                          const struct pipe_shader_state *shader)
83{
84   struct draw_vertex_shader *vs;
85
86   vs = draw_create_vs_llvm( draw, shader );
87   if (!vs) {
88      vs = draw_create_vs_sse( draw, shader );
89      if (!vs) {
90         vs = draw_create_vs_ppc( draw, shader );
91         if (!vs) {
92            vs = draw_create_vs_exec( draw, shader );
93         }
94      }
95   }
96
97   if (vs)
98   {
99      uint i;
100      for (i = 0; i < vs->info.num_outputs; i++) {
101         if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_POSITION &&
102             vs->info.output_semantic_index[i] == 0)
103            vs->position_output = i;
104      }
105   }
106
107   assert(vs);
108   return vs;
109}
110
111
112void
113draw_bind_vertex_shader(struct draw_context *draw,
114                        struct draw_vertex_shader *dvs)
115{
116   draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
117
118   if (dvs)
119   {
120      draw->vs.vertex_shader = dvs;
121      draw->vs.num_vs_outputs = dvs->info.num_outputs;
122      draw->vs.position_output = dvs->position_output;
123      dvs->prepare( dvs, draw );
124   }
125   else {
126      draw->vs.vertex_shader = NULL;
127      draw->vs.num_vs_outputs = 0;
128   }
129}
130
131
132void
133draw_delete_vertex_shader(struct draw_context *draw,
134                          struct draw_vertex_shader *dvs)
135{
136   unsigned i;
137
138   for (i = 0; i < dvs->nr_varients; i++)
139      dvs->varient[i]->destroy( dvs->varient[i] );
140
141   dvs->nr_varients = 0;
142
143   dvs->delete( dvs );
144}
145
146
147
148boolean
149draw_vs_init( struct draw_context *draw )
150{
151   draw->vs.machine = tgsi_exec_machine_create();
152   if (!draw->vs.machine)
153      return FALSE;
154
155   draw->vs.emit_cache = translate_cache_create();
156   if (!draw->vs.emit_cache)
157      return FALSE;
158
159   draw->vs.fetch_cache = translate_cache_create();
160   if (!draw->vs.fetch_cache)
161      return FALSE;
162
163   draw->vs.aos_machine = draw_vs_aos_machine();
164#ifdef PIPE_ARCH_X86
165   if (!draw->vs.aos_machine)
166      return FALSE;
167#endif
168
169   return TRUE;
170}
171
172void
173draw_vs_destroy( struct draw_context *draw )
174{
175   if (draw->vs.fetch_cache)
176      translate_cache_destroy(draw->vs.fetch_cache);
177
178   if (draw->vs.emit_cache)
179      translate_cache_destroy(draw->vs.emit_cache);
180
181   if (draw->vs.aos_machine)
182      draw_vs_aos_machine_destroy(draw->vs.aos_machine);
183
184   if (draw->vs.aligned_constant_storage)
185      align_free((void*)draw->vs.aligned_constant_storage);
186
187   tgsi_exec_machine_destroy(draw->vs.machine);
188}
189
190
191struct draw_vs_varient *
192draw_vs_lookup_varient( struct draw_vertex_shader *vs,
193                        const struct draw_vs_varient_key *key )
194{
195   struct draw_vs_varient *varient;
196   unsigned i;
197
198   /* Lookup existing varient:
199    */
200   for (i = 0; i < vs->nr_varients; i++)
201      if (draw_vs_varient_key_compare(key, &vs->varient[i]->key) == 0)
202         return vs->varient[i];
203
204   /* Else have to create a new one:
205    */
206   varient = vs->create_varient( vs, key );
207   if (varient == NULL)
208      return NULL;
209
210   /* Add it to our list, could be smarter:
211    */
212   if (vs->nr_varients < Elements(vs->varient)) {
213      vs->varient[vs->nr_varients++] = varient;
214   }
215   else {
216      vs->last_varient++;
217      vs->last_varient %= Elements(vs->varient);
218      vs->varient[vs->last_varient]->destroy(vs->varient[vs->last_varient]);
219      vs->varient[vs->last_varient] = varient;
220   }
221
222   /* Done
223    */
224   return varient;
225}
226
227
228struct translate *
229draw_vs_get_fetch( struct draw_context *draw,
230                   struct translate_key *key )
231{
232   if (!draw->vs.fetch ||
233       translate_key_compare(&draw->vs.fetch->key, key) != 0)
234   {
235      translate_key_sanitize(key);
236      draw->vs.fetch = translate_cache_find(draw->vs.fetch_cache, key);
237   }
238
239   return draw->vs.fetch;
240}
241
242struct translate *
243draw_vs_get_emit( struct draw_context *draw,
244                  struct translate_key *key )
245{
246   if (!draw->vs.emit ||
247       translate_key_compare(&draw->vs.emit->key, key) != 0)
248   {
249      translate_key_sanitize(key);
250      draw->vs.emit = translate_cache_find(draw->vs.emit_cache, key);
251   }
252
253   return draw->vs.emit;
254}
255