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_gs.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_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_geometry_shader
*gs
= draw
->gs
.geometry_shader
;
70 struct draw_llvm_variant_key key
;
71 struct draw_llvm_variant
*variant
= NULL
;
73 unsigned instance_id_index
= ~0;
75 /* Add one to num_outputs because the pipeline occasionally tags on
76 * an additional texcoord, eg for AA lines.
78 unsigned nr
= MAX2( vs
->info
.num_inputs
,
79 vs
->info
.num_outputs
+ 1 );
81 /* Scan for instanceID system value.
83 for (i
= 0; i
< vs
->info
.num_inputs
; i
++) {
84 if (vs
->info
.input_semantic_name
[i
] == TGSI_SEMANTIC_INSTANCEID
) {
85 instance_id_index
= i
;
93 /* Always leave room for the vertex header whether we need it or
94 * not. It's hard to get rid of it in particular because of the
95 * viewport code in draw_pt_post_vs.c.
97 fpme
->vertex_size
= sizeof(struct vertex_header
) + nr
* 4 * sizeof(float);
101 draw_pt_fetch_prepare( fpme
->fetch
,
105 if (opt
& PT_SHADE
) {
106 vs
->prepare(vs
, draw
);
107 draw_geometry_shader_prepare(gs
, draw
);
111 /* XXX: it's not really gl rasterization rules we care about here,
112 * but gl vs dx9 clip spaces.
114 draw_pt_post_vs_prepare( fpme
->post_vs
,
115 (boolean
)draw
->bypass_clipping
,
116 (boolean
)(draw
->identity_viewport
),
117 (boolean
)draw
->rasterizer
->gl_rasterization_rules
,
118 (draw
->vs
.edgeflag_output
? true : false) );
120 if (!(opt
& PT_PIPELINE
)) {
121 draw_pt_emit_prepare( fpme
->emit
,
125 *max_vertices
= MAX2( *max_vertices
,
126 DRAW_PIPE_MAX_VERTICES
);
129 *max_vertices
= DRAW_PIPE_MAX_VERTICES
;
132 /* return even number */
133 *max_vertices
= *max_vertices
& ~1;
135 draw_llvm_make_variant_key(fpme
->llvm
, &key
);
137 variant
= fpme
->variants
;
139 if(memcmp(&variant
->key
, &key
, sizeof key
) == 0)
142 variant
= variant
->next
;
146 variant
= draw_llvm_prepare(fpme
->llvm
, nr
);
147 variant
->next
= fpme
->variants
;
148 fpme
->variants
= variant
;
151 fpme
->current_variant
= variant
;
153 /*XXX we only support one constant buffer */
154 fpme
->llvm
->jit_context
.vs_constants
=
155 draw
->pt
.user
.vs_constants
[0];
156 fpme
->llvm
->jit_context
.gs_constants
=
157 draw
->pt
.user
.gs_constants
[0];
162 static void llvm_middle_end_run( struct draw_pt_middle_end
*middle
,
163 const unsigned *fetch_elts
,
164 unsigned fetch_count
,
165 const ushort
*draw_elts
,
166 unsigned draw_count
)
168 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
169 struct draw_context
*draw
= fpme
->draw
;
170 struct draw_vertex_shader
*vshader
= draw
->vs
.vertex_shader
;
171 struct draw_geometry_shader
*gshader
= draw
->gs
.geometry_shader
;
172 unsigned opt
= fpme
->opt
;
173 unsigned alloc_count
= align( fetch_count
, 4 );
175 struct vertex_header
*pipeline_verts
=
176 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
178 if (!pipeline_verts
) {
179 /* Not much we can do here - just skip the rendering.
185 /* Fetch into our vertex buffer
187 draw_pt_fetch_run( fpme
->fetch
,
190 (char *)pipeline_verts
);
192 /* Run the shader, note that this overwrites the data[] parts of
193 * the pipeline verts. If there is no shader, eg if
194 * bypass_vs_clip_and_viewport, then the inputs == outputs, and are
195 * already in the correct place.*/
198 vshader
->run_linear(vshader
,
199 (const float (*)[4])pipeline_verts
->data
,
200 ( float (*)[4])pipeline_verts
->data
,
201 draw
->pt
.user
.vs_constants
,
206 draw_geometry_shader_run(gshader
,
207 (const float (*)[4])pipeline_verts
->data
,
208 ( float (*)[4])pipeline_verts
->data
,
209 draw
->pt
.user
.gs_constants
,
215 if (draw_pt_post_vs_run( fpme
->post_vs
,
223 /* Do we need to run the pipeline?
225 if (opt
& PT_PIPELINE
) {
226 draw_pipeline_run( fpme
->draw
,
235 draw_pt_emit( fpme
->emit
,
236 (const float (*)[4])pipeline_verts
->data
,
244 FREE(pipeline_verts
);
248 static void llvm_middle_end_linear_run( struct draw_pt_middle_end
*middle
,
252 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
253 struct draw_context
*draw
= fpme
->draw
;
254 unsigned opt
= fpme
->opt
;
255 unsigned alloc_count
= align( count
, 4 );
257 struct vertex_header
*pipeline_verts
=
258 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
260 if (!pipeline_verts
) {
261 /* Not much we can do here - just skip the rendering.
268 debug_printf("#### Pipeline = %p (data = %p)\n",
269 pipeline_verts
, pipeline_verts
->data
);
271 fpme
->current_variant
->jit_func( &fpme
->llvm
->jit_context
,
273 (const char **)draw
->pt
.user
.vbuffer
,
277 draw
->pt
.vertex_buffer
);
279 if (draw_pt_post_vs_run( fpme
->post_vs
,
287 /* Do we need to run the pipeline?
289 if (opt
& PT_PIPELINE
) {
290 draw_pipeline_run_linear( fpme
->draw
,
297 draw_pt_emit_linear( fpme
->emit
,
298 (const float (*)[4])pipeline_verts
->data
,
303 FREE(pipeline_verts
);
309 llvm_middle_end_linear_run_elts( struct draw_pt_middle_end
*middle
,
312 const ushort
*draw_elts
,
313 unsigned draw_count
)
315 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
316 struct draw_context
*draw
= fpme
->draw
;
317 unsigned opt
= fpme
->opt
;
318 unsigned alloc_count
= align( count
, 4 );
320 struct vertex_header
*pipeline_verts
=
321 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
326 fpme
->current_variant
->jit_func( &fpme
->llvm
->jit_context
,
328 (const char **)draw
->pt
.user
.vbuffer
,
332 draw
->pt
.vertex_buffer
);
334 if (draw_pt_post_vs_run( fpme
->post_vs
,
342 /* Do we need to run the pipeline?
344 if (opt
& PT_PIPELINE
) {
345 draw_pipeline_run( fpme
->draw
,
354 draw_pt_emit( fpme
->emit
,
355 (const float (*)[4])pipeline_verts
->data
,
362 FREE(pipeline_verts
);
368 static void llvm_middle_end_finish( struct draw_pt_middle_end
*middle
)
373 static void llvm_middle_end_destroy( struct draw_pt_middle_end
*middle
)
375 struct llvm_middle_end
*fpme
= (struct llvm_middle_end
*)middle
;
378 draw_pt_fetch_destroy( fpme
->fetch
);
381 draw_pt_emit_destroy( fpme
->emit
);
384 draw_pt_post_vs_destroy( fpme
->post_vs
);
387 draw_llvm_destroy( fpme
->llvm
);
393 struct draw_pt_middle_end
*draw_pt_fetch_pipeline_or_emit_llvm( struct draw_context
*draw
)
395 struct llvm_middle_end
*fpme
= 0;
400 fpme
= CALLOC_STRUCT( llvm_middle_end
);
404 fpme
->base
.prepare
= llvm_middle_end_prepare
;
405 fpme
->base
.run
= llvm_middle_end_run
;
406 fpme
->base
.run_linear
= llvm_middle_end_linear_run
;
407 fpme
->base
.run_linear_elts
= llvm_middle_end_linear_run_elts
;
408 fpme
->base
.finish
= llvm_middle_end_finish
;
409 fpme
->base
.destroy
= llvm_middle_end_destroy
;
413 fpme
->fetch
= draw_pt_fetch_create( draw
);
417 fpme
->post_vs
= draw_pt_post_vs_create( draw
);
421 fpme
->emit
= draw_pt_emit_create( draw
);
425 fpme
->llvm
= draw_llvm_create(draw
);
429 fpme
->variants
= NULL
;
430 fpme
->current_variant
= NULL
;
431 fpme
->nr_variants
= 0;
437 llvm_middle_end_destroy( &fpme
->base
);