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_fetch
*fetch
;
44 struct pt_post_vs
*post_vs
;
47 unsigned vertex_data_offset
;
52 struct draw_llvm
*llvm
;
53 struct draw_llvm_variant
*variants
;
54 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 draw_vertex_shader
*vs
= draw
->vs
.vertex_shader
;
68 struct draw_llvm_variant_key key
;
69 struct draw_llvm_variant
*variant
= NULL
;
71 unsigned instance_id_index
= ~0;
73 /* Add one to num_outputs because the pipeline occasionally tags on
74 * an additional texcoord, eg for AA lines.
76 unsigned nr
= MAX2( vs
->info
.num_inputs
,
77 vs
->info
.num_outputs
+ 1 );
79 /* Scan for instanceID system value.
81 for (i
= 0; i
< vs
->info
.num_inputs
; i
++) {
82 if (vs
->info
.input_semantic_name
[i
] == TGSI_SEMANTIC_INSTANCEID
) {
83 instance_id_index
= i
;
91 /* Always leave room for the vertex header whether we need it or
92 * not. It's hard to get rid of it in particular because of the
93 * viewport code in draw_pt_post_vs.c.
95 fpme
->vertex_size
= sizeof(struct vertex_header
) + nr
* 4 * sizeof(float);
98 /* XXX: it's not really gl rasterization rules we care about here,
99 * but gl vs dx9 clip spaces.
101 draw_pt_post_vs_prepare( fpme
->post_vs
,
102 (boolean
)draw
->bypass_clipping
,
103 (boolean
)(draw
->identity_viewport
),
104 (boolean
)draw
->rasterizer
->gl_rasterization_rules
,
105 (draw
->vs
.edgeflag_output
? true : false) );
107 if (!(opt
& PT_PIPELINE
)) {
108 draw_pt_emit_prepare( fpme
->emit
,
112 *max_vertices
= MAX2( *max_vertices
,
113 DRAW_PIPE_MAX_VERTICES
);
116 *max_vertices
= DRAW_PIPE_MAX_VERTICES
;
119 /* return even number */
120 *max_vertices
= *max_vertices
& ~1;
122 draw_llvm_make_variant_key(fpme
->llvm
, &key
);
124 variant
= fpme
->variants
;
126 if(memcmp(&variant
->key
, &key
, sizeof key
) == 0)
129 variant
= variant
->next
;
133 variant
= draw_llvm_prepare(fpme
->llvm
, nr
);
134 variant
->next
= fpme
->variants
;
135 fpme
->variants
= variant
;
138 fpme
->current_variant
= variant
;
140 /*XXX we only support one constant buffer */
141 fpme
->llvm
->jit_context
.vs_constants
=
142 draw
->pt
.user
.vs_constants
[0];
143 fpme
->llvm
->jit_context
.gs_constants
=
144 draw
->pt
.user
.gs_constants
[0];
149 static void llvm_middle_end_run( struct draw_pt_middle_end
*middle
,
150 const unsigned *fetch_elts
,
151 unsigned fetch_count
,
152 const ushort
*draw_elts
,
153 unsigned draw_count
)
155 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
156 struct draw_context
*draw
= fpme
->draw
;
157 unsigned opt
= fpme
->opt
;
158 unsigned alloc_count
= align( fetch_count
, 4 );
160 struct vertex_header
*pipeline_verts
=
161 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
163 if (!pipeline_verts
) {
164 /* Not much we can do here - just skip the rendering.
170 fpme
->current_variant
->jit_func_elts( &fpme
->llvm
->jit_context
,
172 (const char **)draw
->pt
.user
.vbuffer
,
176 draw
->pt
.vertex_buffer
);
178 if (draw_pt_post_vs_run( fpme
->post_vs
,
186 /* Do we need to run the pipeline?
188 if (opt
& PT_PIPELINE
) {
189 draw_pipeline_run( fpme
->draw
,
198 draw_pt_emit( fpme
->emit
,
199 (const float (*)[4])pipeline_verts
->data
,
207 FREE(pipeline_verts
);
211 static void llvm_middle_end_linear_run( struct draw_pt_middle_end
*middle
,
215 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
216 struct draw_context
*draw
= fpme
->draw
;
217 unsigned opt
= fpme
->opt
;
218 unsigned alloc_count
= align( count
, 4 );
220 struct vertex_header
*pipeline_verts
=
221 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
223 if (!pipeline_verts
) {
224 /* Not much we can do here - just skip the rendering.
231 debug_printf("#### Pipeline = %p (data = %p)\n",
232 pipeline_verts
, pipeline_verts
->data
);
234 fpme
->current_variant
->jit_func( &fpme
->llvm
->jit_context
,
236 (const char **)draw
->pt
.user
.vbuffer
,
240 draw
->pt
.vertex_buffer
);
242 if (draw_pt_post_vs_run( fpme
->post_vs
,
250 /* Do we need to run the pipeline?
252 if (opt
& PT_PIPELINE
) {
253 draw_pipeline_run_linear( fpme
->draw
,
260 draw_pt_emit_linear( fpme
->emit
,
261 (const float (*)[4])pipeline_verts
->data
,
266 FREE(pipeline_verts
);
272 llvm_middle_end_linear_run_elts( struct draw_pt_middle_end
*middle
,
275 const ushort
*draw_elts
,
276 unsigned draw_count
)
278 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
279 struct draw_context
*draw
= fpme
->draw
;
280 unsigned opt
= fpme
->opt
;
281 unsigned alloc_count
= align( count
, 4 );
283 struct vertex_header
*pipeline_verts
=
284 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
289 fpme
->current_variant
->jit_func( &fpme
->llvm
->jit_context
,
291 (const char **)draw
->pt
.user
.vbuffer
,
295 draw
->pt
.vertex_buffer
);
297 if (draw_pt_post_vs_run( fpme
->post_vs
,
305 /* Do we need to run the pipeline?
307 if (opt
& PT_PIPELINE
) {
308 draw_pipeline_run( fpme
->draw
,
317 draw_pt_emit( fpme
->emit
,
318 (const float (*)[4])pipeline_verts
->data
,
325 FREE(pipeline_verts
);
331 static void llvm_middle_end_finish( struct draw_pt_middle_end
*middle
)
336 static void llvm_middle_end_destroy( struct draw_pt_middle_end
*middle
)
338 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
339 struct draw_context
*draw
= fpme
->draw
;
340 struct draw_llvm_variant
*variant
= NULL
;
342 variant
= fpme
->variants
;
344 struct draw_llvm_variant
*next
= variant
->next
;
346 if (variant
->function_elts
) {
347 if (variant
->function_elts
)
348 LLVMFreeMachineCodeForFunction(draw
->engine
,
349 variant
->function_elts
);
350 LLVMDeleteFunction(variant
->function_elts
);
353 if (variant
->function
) {
354 if (variant
->function
)
355 LLVMFreeMachineCodeForFunction(draw
->engine
,
357 LLVMDeleteFunction(variant
->function
);
365 draw_pt_fetch_destroy( fpme
->fetch
);
368 draw_pt_emit_destroy( fpme
->emit
);
371 draw_pt_post_vs_destroy( fpme
->post_vs
);
374 draw_llvm_destroy( fpme
->llvm
);
380 struct draw_pt_middle_end
*draw_pt_fetch_pipeline_or_emit_llvm( struct draw_context
*draw
)
382 struct llvm_middle_end
*fpme
= 0;
387 fpme
= CALLOC_STRUCT( llvm_middle_end
);
391 fpme
->base
.prepare
= llvm_middle_end_prepare
;
392 fpme
->base
.run
= llvm_middle_end_run
;
393 fpme
->base
.run_linear
= llvm_middle_end_linear_run
;
394 fpme
->base
.run_linear_elts
= llvm_middle_end_linear_run_elts
;
395 fpme
->base
.finish
= llvm_middle_end_finish
;
396 fpme
->base
.destroy
= llvm_middle_end_destroy
;
400 fpme
->fetch
= draw_pt_fetch_create( draw
);
404 fpme
->post_vs
= draw_pt_post_vs_create( draw
);
408 fpme
->emit
= draw_pt_emit_create( draw
);
412 fpme
->llvm
= draw_llvm_create(draw
);
416 fpme
->variants
= NULL
;
417 fpme
->current_variant
= NULL
;
418 fpme
->nr_variants
= 0;
424 llvm_middle_end_destroy( &fpme
->base
);