draw_vs.c revision 1820d240cd0b517ca1d73f1e8e0a528ca8d5b092 
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_dump.h"
47#include "tgsi/tgsi_exec.h"
48
49DEBUG_GET_ONCE_BOOL_OPTION(gallium_dump_vs, "GALLIUM_DUMP_VS", FALSE);
50
51void
52draw_vs_set_constants(struct draw_context *draw,
53                      unsigned slot,
54                      const void *constants,
55                      unsigned size)
56{
57   if (((uintptr_t)constants) & 0xf) {
58      if (size > draw->vs.const_storage_size[slot]) {
59         if (draw->vs.aligned_constant_storage[slot]) {
60            align_free((void *)draw->vs.aligned_constant_storage[slot]);
61         }
62         draw->vs.aligned_constant_storage[slot] = align_malloc(size, 16);
63      }
64      assert(constants);
65      memcpy((void *)draw->vs.aligned_constant_storage[slot],
66             constants,
67             size);
68      constants = draw->vs.aligned_constant_storage[slot];
69   }
70
71   draw->vs.aligned_constants[slot] = constants;
72   draw_vs_aos_machine_constants(draw->vs.aos_machine, slot, constants);
73}
74
75
76void draw_vs_set_viewport( struct draw_context *draw,
77                           const struct pipe_viewport_state *viewport )
78{
79   draw_vs_aos_machine_viewport( draw->vs.aos_machine, viewport );
80}
81
82
83
84struct draw_vertex_shader *
85draw_create_vertex_shader(struct draw_context *draw,
86                          const struct pipe_shader_state *shader)
87{
88   struct draw_vertex_shader *vs;
89
90   if (draw->dump_vs) {
91      tgsi_dump(shader->tokens, 0);
92   }
93
94   vs = draw_create_vs_sse( draw, shader );
95   if (!vs) {
96      vs = draw_create_vs_ppc( draw, shader );
97      if (!vs) {
98         vs = draw_create_vs_exec( draw, shader );
99      }
100   }
101
102   if (vs)
103   {
104      uint i;
105      for (i = 0; i < vs->info.num_outputs; i++) {
106         if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_POSITION &&
107             vs->info.output_semantic_index[i] == 0)
108            vs->position_output = i;
109         else if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_EDGEFLAG &&
110             vs->info.output_semantic_index[i] == 0)
111            vs->edgeflag_output = i;
112      }
113   }
114
115   assert(vs);
116   return vs;
117}
118
119
120void
121draw_bind_vertex_shader(struct draw_context *draw,
122                        struct draw_vertex_shader *dvs)
123{
124   draw_do_flush( draw, DRAW_FLUSH_STATE_CHANGE );
125
126   if (dvs)
127   {
128      draw->vs.vertex_shader = dvs;
129      draw->vs.num_vs_outputs = dvs->info.num_outputs;
130      draw->vs.position_output = dvs->position_output;
131      draw->vs.edgeflag_output = dvs->edgeflag_output;
132      dvs->prepare( dvs, draw );
133   }
134   else {
135      draw->vs.vertex_shader = NULL;
136      draw->vs.num_vs_outputs = 0;
137   }
138}
139
140
141void
142draw_delete_vertex_shader(struct draw_context *draw,
143                          struct draw_vertex_shader *dvs)
144{
145   unsigned i;
146
147   for (i = 0; i < dvs->nr_varients; i++)
148      dvs->varient[i]->destroy( dvs->varient[i] );
149
150   dvs->nr_varients = 0;
151
152   dvs->delete( dvs );
153}
154
155
156
157boolean
158draw_vs_init( struct draw_context *draw )
159{
160   draw->dump_vs = debug_get_option_gallium_dump_vs();
161
162   draw->vs.machine = tgsi_exec_machine_create();
163   if (!draw->vs.machine)
164      return FALSE;
165
166   draw->vs.emit_cache = translate_cache_create();
167   if (!draw->vs.emit_cache)
168      return FALSE;
169
170   draw->vs.fetch_cache = translate_cache_create();
171   if (!draw->vs.fetch_cache)
172      return FALSE;
173
174   draw->vs.aos_machine = draw_vs_aos_machine();
175#ifdef PIPE_ARCH_X86
176   if (!draw->vs.aos_machine)
177      return FALSE;
178#endif
179
180   return TRUE;
181}
182
183void
184draw_vs_destroy( struct draw_context *draw )
185{
186   uint i;
187
188   if (draw->vs.fetch_cache)
189      translate_cache_destroy(draw->vs.fetch_cache);
190
191   if (draw->vs.emit_cache)
192      translate_cache_destroy(draw->vs.emit_cache);
193
194   if (draw->vs.aos_machine)
195      draw_vs_aos_machine_destroy(draw->vs.aos_machine);
196
197   for (i = 0; i < PIPE_MAX_CONSTANT_BUFFERS; i++) {
198      if (draw->vs.aligned_constant_storage[i]) {
199         align_free((void *)draw->vs.aligned_constant_storage[i]);
200      }
201   }
202
203   tgsi_exec_machine_destroy(draw->vs.machine);
204}
205
206
207struct draw_vs_varient *
208draw_vs_lookup_varient( struct draw_vertex_shader *vs,
209                        const struct draw_vs_varient_key *key )
210{
211   struct draw_vs_varient *varient;
212   unsigned i;
213
214   /* Lookup existing varient:
215    */
216   for (i = 0; i < vs->nr_varients; i++)
217      if (draw_vs_varient_key_compare(key, &vs->varient[i]->key) == 0)
218         return vs->varient[i];
219
220   /* Else have to create a new one:
221    */
222   varient = vs->create_varient( vs, key );
223   if (varient == NULL)
224      return NULL;
225
226   /* Add it to our list, could be smarter:
227    */
228   if (vs->nr_varients < Elements(vs->varient)) {
229      vs->varient[vs->nr_varients++] = varient;
230   }
231   else {
232      vs->last_varient++;
233      vs->last_varient %= Elements(vs->varient);
234      vs->varient[vs->last_varient]->destroy(vs->varient[vs->last_varient]);
235      vs->varient[vs->last_varient] = varient;
236   }
237
238   /* Done
239    */
240   return varient;
241}
242
243
244struct translate *
245draw_vs_get_fetch( struct draw_context *draw,
246                   struct translate_key *key )
247{
248   if (!draw->vs.fetch ||
249       translate_key_compare(&draw->vs.fetch->key, key) != 0)
250   {
251      translate_key_sanitize(key);
252      draw->vs.fetch = translate_cache_find(draw->vs.fetch_cache, key);
253   }
254
255   return draw->vs.fetch;
256}
257
258struct translate *
259draw_vs_get_emit( struct draw_context *draw,
260                  struct translate_key *key )
261{
262   if (!draw->vs.emit ||
263       translate_key_compare(&draw->vs.emit->key, key) != 0)
264   {
265      translate_key_sanitize(key);
266      draw->vs.emit = translate_cache_find(draw->vs.emit_cache, key);
267   }
268
269   return draw->vs.emit;
270}
271