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_vbuf.h"
32 #include "draw/draw_vertex.h"
33 #include "draw/draw_pt.h"
34 #include "draw/draw_vs.h"
35 #include "draw/draw_llvm.h"
38 struct llvm_middle_end
{
39 struct draw_pt_middle_end base
;
40 struct draw_context
*draw
;
43 struct pt_so_emit
*so_emit
;
44 struct pt_fetch
*fetch
;
45 struct pt_post_vs
*post_vs
;
48 unsigned vertex_data_offset
;
53 struct draw_llvm
*llvm
;
54 struct draw_llvm_variant
*variants
;
55 struct draw_llvm_variant
*current_variant
;
61 llvm_middle_end_prepare( struct draw_pt_middle_end
*middle
,
64 unsigned *max_vertices
)
66 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
67 struct draw_context
*draw
= fpme
->draw
;
68 struct draw_vertex_shader
*vs
= draw
->vs
.vertex_shader
;
69 struct draw_llvm_variant_key key
;
70 struct draw_llvm_variant
*variant
= NULL
;
72 unsigned instance_id_index
= ~0;
74 /* Add one to num_outputs because the pipeline occasionally tags on
75 * an additional texcoord, eg for AA lines.
77 unsigned nr
= MAX2( vs
->info
.num_inputs
,
78 vs
->info
.num_outputs
+ 1 );
80 /* Scan for instanceID system value.
82 for (i
= 0; i
< vs
->info
.num_inputs
; i
++) {
83 if (vs
->info
.input_semantic_name
[i
] == TGSI_SEMANTIC_INSTANCEID
) {
84 instance_id_index
= i
;
92 /* Always leave room for the vertex header whether we need it or
93 * not. It's hard to get rid of it in particular because of the
94 * viewport code in draw_pt_post_vs.c.
96 fpme
->vertex_size
= sizeof(struct vertex_header
) + nr
* 4 * sizeof(float);
99 /* XXX: it's not really gl rasterization rules we care about here,
100 * but gl vs dx9 clip spaces.
102 draw_pt_post_vs_prepare( fpme
->post_vs
,
103 (boolean
)draw
->bypass_clipping
,
104 (boolean
)(draw
->identity_viewport
),
105 (boolean
)draw
->rasterizer
->gl_rasterization_rules
,
106 (draw
->vs
.edgeflag_output
? true : false) );
108 draw_pt_so_emit_prepare( fpme
->so_emit
, prim
);
109 if (!(opt
& PT_PIPELINE
)) {
110 draw_pt_emit_prepare( fpme
->emit
,
114 *max_vertices
= MAX2( *max_vertices
,
115 DRAW_PIPE_MAX_VERTICES
);
118 *max_vertices
= DRAW_PIPE_MAX_VERTICES
;
121 /* return even number */
122 *max_vertices
= *max_vertices
& ~1;
124 draw_llvm_make_variant_key(fpme
->llvm
, &key
);
126 variant
= fpme
->variants
;
128 if(memcmp(&variant
->key
, &key
, sizeof key
) == 0)
131 variant
= variant
->next
;
135 variant
= draw_llvm_prepare(fpme
->llvm
, nr
);
136 variant
->next
= fpme
->variants
;
137 fpme
->variants
= variant
;
140 fpme
->current_variant
= variant
;
142 /*XXX we only support one constant buffer */
143 fpme
->llvm
->jit_context
.vs_constants
=
144 draw
->pt
.user
.vs_constants
[0];
145 fpme
->llvm
->jit_context
.gs_constants
=
146 draw
->pt
.user
.gs_constants
[0];
151 static void llvm_middle_end_run( struct draw_pt_middle_end
*middle
,
152 const unsigned *fetch_elts
,
153 unsigned fetch_count
,
154 const ushort
*draw_elts
,
155 unsigned draw_count
)
157 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
158 struct draw_context
*draw
= fpme
->draw
;
159 unsigned opt
= fpme
->opt
;
160 unsigned alloc_count
= align( fetch_count
, 4 );
162 struct vertex_header
*pipeline_verts
=
163 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
165 if (!pipeline_verts
) {
166 /* Not much we can do here - just skip the rendering.
172 fpme
->current_variant
->jit_func_elts( &fpme
->llvm
->jit_context
,
174 (const char **)draw
->pt
.user
.vbuffer
,
178 draw
->pt
.vertex_buffer
);
180 /* stream output needs to be done before clipping */
181 draw_pt_so_emit( fpme
->so_emit
,
182 (const float (*)[4])pipeline_verts
->data
,
186 if (draw_pt_post_vs_run( fpme
->post_vs
,
194 /* Do we need to run the pipeline?
196 if (opt
& PT_PIPELINE
) {
197 draw_pipeline_run( fpme
->draw
,
206 draw_pt_emit( fpme
->emit
,
207 (const float (*)[4])pipeline_verts
->data
,
215 FREE(pipeline_verts
);
219 static void llvm_middle_end_linear_run( struct draw_pt_middle_end
*middle
,
223 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
224 struct draw_context
*draw
= fpme
->draw
;
225 unsigned opt
= fpme
->opt
;
226 unsigned alloc_count
= align( count
, 4 );
228 struct vertex_header
*pipeline_verts
=
229 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
231 if (!pipeline_verts
) {
232 /* Not much we can do here - just skip the rendering.
239 debug_printf("#### Pipeline = %p (data = %p)\n",
240 pipeline_verts
, pipeline_verts
->data
);
242 fpme
->current_variant
->jit_func( &fpme
->llvm
->jit_context
,
244 (const char **)draw
->pt
.user
.vbuffer
,
248 draw
->pt
.vertex_buffer
);
250 /* stream output needs to be done before clipping */
251 draw_pt_so_emit( fpme
->so_emit
,
252 (const float (*)[4])pipeline_verts
->data
,
256 if (draw_pt_post_vs_run( fpme
->post_vs
,
264 /* Do we need to run the pipeline?
266 if (opt
& PT_PIPELINE
) {
267 draw_pipeline_run_linear( fpme
->draw
,
274 draw_pt_emit_linear( fpme
->emit
,
275 (const float (*)[4])pipeline_verts
->data
,
280 FREE(pipeline_verts
);
286 llvm_middle_end_linear_run_elts( struct draw_pt_middle_end
*middle
,
289 const ushort
*draw_elts
,
290 unsigned draw_count
)
292 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
293 struct draw_context
*draw
= fpme
->draw
;
294 unsigned opt
= fpme
->opt
;
295 unsigned alloc_count
= align( count
, 4 );
297 struct vertex_header
*pipeline_verts
=
298 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
303 fpme
->current_variant
->jit_func( &fpme
->llvm
->jit_context
,
305 (const char **)draw
->pt
.user
.vbuffer
,
309 draw
->pt
.vertex_buffer
);
311 /* stream output needs to be done before clipping */
312 draw_pt_so_emit( fpme
->so_emit
,
313 (const float (*)[4])pipeline_verts
->data
,
317 if (draw_pt_post_vs_run( fpme
->post_vs
,
325 /* Do we need to run the pipeline?
327 if (opt
& PT_PIPELINE
) {
328 draw_pipeline_run( fpme
->draw
,
337 draw_pt_emit( fpme
->emit
,
338 (const float (*)[4])pipeline_verts
->data
,
345 FREE(pipeline_verts
);
351 static void llvm_middle_end_finish( struct draw_pt_middle_end
*middle
)
356 static void llvm_middle_end_destroy( struct draw_pt_middle_end
*middle
)
358 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
359 struct draw_context
*draw
= fpme
->draw
;
360 struct draw_llvm_variant
*variant
= NULL
;
362 variant
= fpme
->variants
;
364 struct draw_llvm_variant
*next
= variant
->next
;
366 if (variant
->function_elts
) {
367 if (variant
->function_elts
)
368 LLVMFreeMachineCodeForFunction(draw
->engine
,
369 variant
->function_elts
);
370 LLVMDeleteFunction(variant
->function_elts
);
373 if (variant
->function
) {
374 if (variant
->function
)
375 LLVMFreeMachineCodeForFunction(draw
->engine
,
377 LLVMDeleteFunction(variant
->function
);
385 draw_pt_fetch_destroy( fpme
->fetch
);
388 draw_pt_emit_destroy( fpme
->emit
);
391 draw_pt_so_emit_destroy( fpme
->so_emit
);
394 draw_pt_post_vs_destroy( fpme
->post_vs
);
397 draw_llvm_destroy( fpme
->llvm
);
403 struct draw_pt_middle_end
*draw_pt_fetch_pipeline_or_emit_llvm( struct draw_context
*draw
)
405 struct llvm_middle_end
*fpme
= 0;
410 fpme
= CALLOC_STRUCT( llvm_middle_end
);
414 fpme
->base
.prepare
= llvm_middle_end_prepare
;
415 fpme
->base
.run
= llvm_middle_end_run
;
416 fpme
->base
.run_linear
= llvm_middle_end_linear_run
;
417 fpme
->base
.run_linear_elts
= llvm_middle_end_linear_run_elts
;
418 fpme
->base
.finish
= llvm_middle_end_finish
;
419 fpme
->base
.destroy
= llvm_middle_end_destroy
;
423 fpme
->fetch
= draw_pt_fetch_create( draw
);
427 fpme
->post_vs
= draw_pt_post_vs_create( draw
);
431 fpme
->emit
= draw_pt_emit_create( draw
);
435 fpme
->so_emit
= draw_pt_so_emit_create( draw
);
439 fpme
->llvm
= draw_llvm_create(draw
);
443 fpme
->variants
= NULL
;
444 fpme
->current_variant
= NULL
;
445 fpme
->nr_variants
= 0;
451 llvm_middle_end_destroy( &fpme
->base
);