1 /**************************************************************************
3 * Copyright 2010 VMWare, Inc.
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 **************************************************************************/
28 #include "util/u_math.h"
29 #include "util/u_memory.h"
30 #include "draw/draw_context.h"
31 #include "draw/draw_gs.h"
32 #include "draw/draw_vbuf.h"
33 #include "draw/draw_vertex.h"
34 #include "draw/draw_pt.h"
35 #include "draw/draw_vs.h"
36 #include "draw/draw_llvm.h"
39 struct llvm_middle_end
{
40 struct draw_pt_middle_end base
;
41 struct draw_context
*draw
;
44 struct pt_so_emit
*so_emit
;
45 struct pt_fetch
*fetch
;
46 struct pt_post_vs
*post_vs
;
49 unsigned vertex_data_offset
;
54 struct draw_llvm
*llvm
;
55 struct draw_llvm_variant
*current_variant
;
60 llvm_middle_end_prepare( struct draw_pt_middle_end
*middle
,
63 unsigned *max_vertices
)
65 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
66 struct draw_context
*draw
= fpme
->draw
;
67 struct llvm_vertex_shader
*shader
=
68 llvm_vertex_shader(draw
->vs
.vertex_shader
);
69 struct draw_llvm_variant_key key
;
70 struct draw_llvm_variant
*variant
= NULL
;
71 struct draw_llvm_variant_list_item
*li
;
73 unsigned instance_id_index
= ~0;
76 unsigned out_prim
= (draw
->gs
.geometry_shader
?
77 draw
->gs
.geometry_shader
->output_primitive
:
80 /* Add one to num_outputs because the pipeline occasionally tags on
81 * an additional texcoord, eg for AA lines.
83 unsigned nr
= MAX2( shader
->base
.info
.num_inputs
,
84 shader
->base
.info
.num_outputs
+ 1 );
86 /* Scan for instanceID system value.
88 for (i
= 0; i
< shader
->base
.info
.num_inputs
; i
++) {
89 if (shader
->base
.info
.input_semantic_name
[i
] == TGSI_SEMANTIC_INSTANCEID
) {
90 instance_id_index
= i
;
95 fpme
->input_prim
= in_prim
;
98 /* Always leave room for the vertex header whether we need it or
99 * not. It's hard to get rid of it in particular because of the
100 * viewport code in draw_pt_post_vs.c.
102 fpme
->vertex_size
= sizeof(struct vertex_header
) + nr
* 4 * sizeof(float);
105 /* XXX: it's not really gl rasterization rules we care about here,
106 * but gl vs dx9 clip spaces.
108 draw_pt_post_vs_prepare( fpme
->post_vs
,
109 (boolean
)draw
->bypass_clipping
,
110 (boolean
)(draw
->identity_viewport
),
111 (boolean
)draw
->rasterizer
->gl_rasterization_rules
,
112 (draw
->vs
.edgeflag_output
? TRUE
: FALSE
) );
114 draw_pt_so_emit_prepare( fpme
->so_emit
);
116 if (!(opt
& PT_PIPELINE
)) {
117 draw_pt_emit_prepare( fpme
->emit
,
121 *max_vertices
= MAX2( *max_vertices
,
122 DRAW_PIPE_MAX_VERTICES
);
125 *max_vertices
= DRAW_PIPE_MAX_VERTICES
;
128 /* return even number */
129 *max_vertices
= *max_vertices
& ~1;
131 draw_llvm_make_variant_key(fpme
->llvm
, &key
);
133 li
= first_elem(&shader
->variants
);
134 while(!at_end(&shader
->variants
, li
)) {
135 if(memcmp(&li
->base
->key
, &key
, sizeof key
) == 0) {
143 move_to_head(&fpme
->llvm
->vs_variants_list
, &variant
->list_item_global
);
147 if (fpme
->llvm
->nr_variants
>= DRAW_MAX_SHADER_VARIANTS
) {
149 * XXX: should we flush here ?
151 for (i
= 0; i
< DRAW_MAX_SHADER_VARIANTS
/ 4; i
++) {
152 struct draw_llvm_variant_list_item
*item
=
153 last_elem(&fpme
->llvm
->vs_variants_list
);
154 draw_llvm_destroy_variant(item
->base
);
158 variant
= draw_llvm_create_variant(fpme
->llvm
, nr
);
161 insert_at_head(&shader
->variants
, &variant
->list_item_local
);
162 insert_at_head(&fpme
->llvm
->vs_variants_list
, &variant
->list_item_global
);
163 fpme
->llvm
->nr_variants
++;
164 shader
->variants_cached
++;
168 fpme
->current_variant
= variant
;
170 /*XXX we only support one constant buffer */
171 fpme
->llvm
->jit_context
.vs_constants
=
172 draw
->pt
.user
.vs_constants
[0];
173 fpme
->llvm
->jit_context
.gs_constants
=
174 draw
->pt
.user
.gs_constants
[0];
178 static void pipeline(struct llvm_middle_end
*llvm
,
179 const struct draw_vertex_info
*vert_info
,
180 const struct draw_prim_info
*prim_info
)
182 if (prim_info
->linear
)
183 draw_pipeline_run_linear( llvm
->draw
,
187 draw_pipeline_run( llvm
->draw
,
192 static void emit(struct pt_emit
*emit
,
193 const struct draw_vertex_info
*vert_info
,
194 const struct draw_prim_info
*prim_info
)
196 if (prim_info
->linear
) {
197 draw_pt_emit_linear(emit
, vert_info
, prim_info
);
200 draw_pt_emit(emit
, vert_info
, prim_info
);
205 llvm_pipeline_generic( struct draw_pt_middle_end
*middle
,
206 const struct draw_fetch_info
*fetch_info
,
207 const struct draw_prim_info
*prim_info
)
209 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
210 struct draw_context
*draw
= fpme
->draw
;
211 struct draw_geometry_shader
*gshader
= draw
->gs
.geometry_shader
;
212 struct draw_prim_info gs_prim_info
;
213 struct draw_vertex_info llvm_vert_info
;
214 struct draw_vertex_info gs_vert_info
;
215 struct draw_vertex_info
*vert_info
;
216 unsigned opt
= fpme
->opt
;
218 llvm_vert_info
.count
= fetch_info
->count
;
219 llvm_vert_info
.vertex_size
= fpme
->vertex_size
;
220 llvm_vert_info
.stride
= fpme
->vertex_size
;
221 llvm_vert_info
.verts
=
222 (struct vertex_header
*)MALLOC(fpme
->vertex_size
*
223 align(fetch_info
->count
, 4));
224 if (!llvm_vert_info
.verts
) {
229 if (fetch_info
->linear
)
230 fpme
->current_variant
->jit_func( &fpme
->llvm
->jit_context
,
231 llvm_vert_info
.verts
,
232 (const char **)draw
->pt
.user
.vbuffer
,
236 draw
->pt
.vertex_buffer
,
239 fpme
->current_variant
->jit_func_elts( &fpme
->llvm
->jit_context
,
240 llvm_vert_info
.verts
,
241 (const char **)draw
->pt
.user
.vbuffer
,
245 draw
->pt
.vertex_buffer
,
248 /* Finished with fetch and vs:
251 vert_info
= &llvm_vert_info
;
254 if ((opt
& PT_SHADE
) && gshader
) {
255 draw_geometry_shader_run(gshader
,
256 draw
->pt
.user
.gs_constants
,
262 FREE(vert_info
->verts
);
263 vert_info
= &gs_vert_info
;
264 prim_info
= &gs_prim_info
;
267 /* stream output needs to be done before clipping */
268 draw_pt_so_emit( fpme
->so_emit
,
272 if (draw_pt_post_vs_run( fpme
->post_vs
, vert_info
)) {
276 /* Do we need to run the pipeline?
278 if (opt
& PT_PIPELINE
) {
288 FREE(vert_info
->verts
);
292 static void llvm_middle_end_run( struct draw_pt_middle_end
*middle
,
293 const unsigned *fetch_elts
,
294 unsigned fetch_count
,
295 const ushort
*draw_elts
,
296 unsigned draw_count
)
298 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
299 struct draw_fetch_info fetch_info
;
300 struct draw_prim_info prim_info
;
302 fetch_info
.linear
= FALSE
;
303 fetch_info
.start
= 0;
304 fetch_info
.elts
= fetch_elts
;
305 fetch_info
.count
= fetch_count
;
307 prim_info
.linear
= FALSE
;
309 prim_info
.count
= draw_count
;
310 prim_info
.elts
= draw_elts
;
311 prim_info
.prim
= fpme
->input_prim
;
312 prim_info
.primitive_count
= 1;
313 prim_info
.primitive_lengths
= &draw_count
;
315 llvm_pipeline_generic( middle
, &fetch_info
, &prim_info
);
319 static void llvm_middle_end_linear_run( struct draw_pt_middle_end
*middle
,
323 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
324 struct draw_fetch_info fetch_info
;
325 struct draw_prim_info prim_info
;
327 fetch_info
.linear
= TRUE
;
328 fetch_info
.start
= start
;
329 fetch_info
.count
= count
;
330 fetch_info
.elts
= NULL
;
332 prim_info
.linear
= TRUE
;
334 prim_info
.count
= count
;
335 prim_info
.elts
= NULL
;
336 prim_info
.prim
= fpme
->input_prim
;
337 prim_info
.primitive_count
= 1;
338 prim_info
.primitive_lengths
= &count
;
340 llvm_pipeline_generic( middle
, &fetch_info
, &prim_info
);
346 llvm_middle_end_linear_run_elts( struct draw_pt_middle_end
*middle
,
349 const ushort
*draw_elts
,
350 unsigned draw_count
)
352 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
353 struct draw_fetch_info fetch_info
;
354 struct draw_prim_info prim_info
;
356 fetch_info
.linear
= TRUE
;
357 fetch_info
.start
= start
;
358 fetch_info
.count
= count
;
359 fetch_info
.elts
= NULL
;
361 prim_info
.linear
= FALSE
;
363 prim_info
.count
= draw_count
;
364 prim_info
.elts
= draw_elts
;
365 prim_info
.prim
= fpme
->input_prim
;
366 prim_info
.primitive_count
= 1;
367 prim_info
.primitive_lengths
= &draw_count
;
369 llvm_pipeline_generic( middle
, &fetch_info
, &prim_info
);
376 static void llvm_middle_end_finish( struct draw_pt_middle_end
*middle
)
381 static void llvm_middle_end_destroy( struct draw_pt_middle_end
*middle
)
383 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
386 draw_pt_fetch_destroy( fpme
->fetch
);
389 draw_pt_emit_destroy( fpme
->emit
);
392 draw_pt_so_emit_destroy( fpme
->so_emit
);
395 draw_pt_post_vs_destroy( fpme
->post_vs
);
401 struct draw_pt_middle_end
*
402 draw_pt_fetch_pipeline_or_emit_llvm(struct draw_context
*draw
)
404 struct llvm_middle_end
*fpme
= 0;
409 fpme
= CALLOC_STRUCT( llvm_middle_end
);
413 fpme
->base
.prepare
= llvm_middle_end_prepare
;
414 fpme
->base
.run
= llvm_middle_end_run
;
415 fpme
->base
.run_linear
= llvm_middle_end_linear_run
;
416 fpme
->base
.run_linear_elts
= llvm_middle_end_linear_run_elts
;
417 fpme
->base
.finish
= llvm_middle_end_finish
;
418 fpme
->base
.destroy
= llvm_middle_end_destroy
;
422 fpme
->fetch
= draw_pt_fetch_create( draw
);
426 fpme
->post_vs
= draw_pt_post_vs_create( draw
);
430 fpme
->emit
= draw_pt_emit_create( draw
);
434 fpme
->so_emit
= draw_pt_so_emit_create( draw
);
438 fpme
->llvm
= draw
->llvm
;
442 fpme
->current_variant
= NULL
;
448 llvm_middle_end_destroy( &fpme
->base
);