1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
30 * Keith Whitwell <keith@tungstengraphics.com>
34 #include "util/u_math.h"
35 #include "util/u_memory.h"
37 #include "pipe/p_shader_tokens.h"
39 #include "draw_private.h"
40 #include "draw_context.h"
43 #include "translate/translate.h"
44 #include "translate/translate_cache.h"
46 #include "tgsi/tgsi_dump.h"
47 #include "tgsi/tgsi_exec.h"
49 DEBUG_GET_ONCE_BOOL_OPTION(gallium_dump_vs
, "GALLIUM_DUMP_VS", FALSE
)
53 * Set a vertex shader constant buffer.
54 * \param slot which constant buffer in [0, PIPE_MAX_CONSTANT_BUFFERS-1]
55 * \param constants the mapped buffer
56 * \param size size of buffer in bytes
59 draw_vs_set_constants(struct draw_context
*draw
,
61 const void *constants
,
64 const int alignment
= 16;
66 /* check if buffer is 16-byte aligned */
67 if (((uintptr_t)constants
) & (alignment
- 1)) {
68 /* if not, copy the constants into a new, 16-byte aligned buffer */
69 if (size
> draw
->vs
.const_storage_size
[slot
]) {
70 if (draw
->vs
.aligned_constant_storage
[slot
]) {
71 align_free((void *)draw
->vs
.aligned_constant_storage
[slot
]);
73 draw
->vs
.aligned_constant_storage
[slot
] =
74 align_malloc(size
, alignment
);
77 memcpy((void *)draw
->vs
.aligned_constant_storage
[slot
],
80 constants
= draw
->vs
.aligned_constant_storage
[slot
];
83 draw
->vs
.aligned_constants
[slot
] = constants
;
84 draw_vs_aos_machine_constants(draw
->vs
.aos_machine
, slot
, constants
);
88 void draw_vs_set_viewport( struct draw_context
*draw
,
89 const struct pipe_viewport_state
*viewport
)
91 draw_vs_aos_machine_viewport( draw
->vs
.aos_machine
, viewport
);
96 struct draw_vertex_shader
*
97 draw_create_vertex_shader(struct draw_context
*draw
,
98 const struct pipe_shader_state
*shader
)
100 struct draw_vertex_shader
*vs
= NULL
;
103 tgsi_dump(shader
->tokens
, 0);
106 if (!draw
->pt
.middle
.llvm
) {
107 #if defined(PIPE_ARCH_X86)
108 vs
= draw_create_vs_sse( draw
, shader
);
109 #elif defined(PIPE_ARCH_PPC)
110 vs
= draw_create_vs_ppc( draw
, shader
);
115 vs
= draw_create_vs_llvm(draw
, shader
);
120 vs
= draw_create_vs_exec( draw
, shader
);
126 for (i
= 0; i
< vs
->info
.num_outputs
; i
++) {
127 if (vs
->info
.output_semantic_name
[i
] == TGSI_SEMANTIC_POSITION
&&
128 vs
->info
.output_semantic_index
[i
] == 0)
129 vs
->position_output
= i
;
130 else if (vs
->info
.output_semantic_name
[i
] == TGSI_SEMANTIC_EDGEFLAG
&&
131 vs
->info
.output_semantic_index
[i
] == 0)
132 vs
->edgeflag_output
= i
;
142 draw_bind_vertex_shader(struct draw_context
*draw
,
143 struct draw_vertex_shader
*dvs
)
145 draw_do_flush( draw
, DRAW_FLUSH_STATE_CHANGE
);
149 draw
->vs
.vertex_shader
= dvs
;
150 draw
->vs
.num_vs_outputs
= dvs
->info
.num_outputs
;
151 draw
->vs
.position_output
= dvs
->position_output
;
152 draw
->vs
.edgeflag_output
= dvs
->edgeflag_output
;
153 dvs
->prepare( dvs
, draw
);
156 draw
->vs
.vertex_shader
= NULL
;
157 draw
->vs
.num_vs_outputs
= 0;
163 draw_delete_vertex_shader(struct draw_context
*draw
,
164 struct draw_vertex_shader
*dvs
)
168 for (i
= 0; i
< dvs
->nr_variants
; i
++)
169 dvs
->variant
[i
]->destroy( dvs
->variant
[i
] );
171 dvs
->nr_variants
= 0;
179 draw_vs_init( struct draw_context
*draw
)
181 draw
->dump_vs
= debug_get_option_gallium_dump_vs();
183 draw
->vs
.machine
= tgsi_exec_machine_create();
184 if (!draw
->vs
.machine
)
187 draw
->vs
.emit_cache
= translate_cache_create();
188 if (!draw
->vs
.emit_cache
)
191 draw
->vs
.fetch_cache
= translate_cache_create();
192 if (!draw
->vs
.fetch_cache
)
195 draw
->vs
.aos_machine
= draw_vs_aos_machine();
197 if (!draw
->vs
.aos_machine
)
205 draw_vs_destroy( struct draw_context
*draw
)
209 if (draw
->vs
.fetch_cache
)
210 translate_cache_destroy(draw
->vs
.fetch_cache
);
212 if (draw
->vs
.emit_cache
)
213 translate_cache_destroy(draw
->vs
.emit_cache
);
215 if (draw
->vs
.aos_machine
)
216 draw_vs_aos_machine_destroy(draw
->vs
.aos_machine
);
218 for (i
= 0; i
< PIPE_MAX_CONSTANT_BUFFERS
; i
++) {
219 if (draw
->vs
.aligned_constant_storage
[i
]) {
220 align_free((void *)draw
->vs
.aligned_constant_storage
[i
]);
224 tgsi_exec_machine_destroy(draw
->vs
.machine
);
228 struct draw_vs_variant
*
229 draw_vs_lookup_variant( struct draw_vertex_shader
*vs
,
230 const struct draw_vs_variant_key
*key
)
232 struct draw_vs_variant
*variant
;
235 /* Lookup existing variant:
237 for (i
= 0; i
< vs
->nr_variants
; i
++)
238 if (draw_vs_variant_key_compare(key
, &vs
->variant
[i
]->key
) == 0)
239 return vs
->variant
[i
];
241 /* Else have to create a new one:
243 variant
= vs
->create_variant( vs
, key
);
247 /* Add it to our list, could be smarter:
249 if (vs
->nr_variants
< Elements(vs
->variant
)) {
250 vs
->variant
[vs
->nr_variants
++] = variant
;
254 vs
->last_variant
%= Elements(vs
->variant
);
255 vs
->variant
[vs
->last_variant
]->destroy(vs
->variant
[vs
->last_variant
]);
256 vs
->variant
[vs
->last_variant
] = variant
;
266 draw_vs_get_fetch( struct draw_context
*draw
,
267 struct translate_key
*key
)
269 if (!draw
->vs
.fetch
||
270 translate_key_compare(&draw
->vs
.fetch
->key
, key
) != 0)
272 translate_key_sanitize(key
);
273 draw
->vs
.fetch
= translate_cache_find(draw
->vs
.fetch_cache
, key
);
276 return draw
->vs
.fetch
;
280 draw_vs_get_emit( struct draw_context
*draw
,
281 struct translate_key
*key
)
283 if (!draw
->vs
.emit
||
284 translate_key_compare(&draw
->vs
.emit
->key
, key
) != 0)
286 translate_key_sanitize(key
);
287 draw
->vs
.emit
= translate_cache_find(draw
->vs
.emit_cache
, key
);
290 return draw
->vs
.emit
;