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 **************************************************************************/
28 #include "util/u_math.h"
29 #include "util/u_memory.h"
30 #include "util/u_prim.h"
31 #include "draw/draw_context.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_gs.h"
39 struct fetch_pipeline_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
;
48 unsigned vertex_data_offset
;
54 static void fetch_pipeline_prepare( struct draw_pt_middle_end
*middle
,
57 unsigned *max_vertices
)
59 struct fetch_pipeline_middle_end
*fpme
= (struct fetch_pipeline_middle_end
*)middle
;
60 struct draw_context
*draw
= fpme
->draw
;
61 struct draw_vertex_shader
*vs
= draw
->vs
.vertex_shader
;
63 unsigned instance_id_index
= ~0;
65 unsigned gs_out_prim
= (draw
->gs
.geometry_shader
?
66 draw
->gs
.geometry_shader
->output_primitive
:
69 /* Add one to num_outputs because the pipeline occasionally tags on
70 * an additional texcoord, eg for AA lines.
72 unsigned nr
= MAX2( vs
->info
.num_inputs
,
73 vs
->info
.num_outputs
+ 1 );
75 /* Scan for instanceID system value.
77 for (i
= 0; i
< vs
->info
.num_inputs
; i
++) {
78 if (vs
->info
.input_semantic_name
[i
] == TGSI_SEMANTIC_INSTANCEID
) {
79 instance_id_index
= i
;
84 fpme
->input_prim
= prim
;
87 /* Always leave room for the vertex header whether we need it or
88 * not. It's hard to get rid of it in particular because of the
89 * viewport code in draw_pt_post_vs.c.
91 fpme
->vertex_size
= sizeof(struct vertex_header
) + nr
* 4 * sizeof(float);
95 draw_pt_fetch_prepare( fpme
->fetch
,
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
,
106 draw
->identity_viewport
,
107 (boolean
)draw
->rasterizer
->gl_rasterization_rules
,
108 (draw
->vs
.edgeflag_output
? TRUE
: FALSE
) );
110 draw_pt_so_emit_prepare( fpme
->so_emit
);
112 if (!(opt
& PT_PIPELINE
)) {
113 draw_pt_emit_prepare( fpme
->emit
,
117 *max_vertices
= MAX2( *max_vertices
, 4096 );
120 /* limit max fetches by limiting max_vertices */
121 *max_vertices
= 4096;
124 /* No need to prepare the shader.
126 vs
->prepare(vs
, draw
);
130 static void fetch( struct pt_fetch
*fetch
,
131 const struct draw_fetch_info
*fetch_info
,
134 if (fetch_info
->linear
) {
135 draw_pt_fetch_run_linear( fetch
,
141 draw_pt_fetch_run( fetch
,
149 static void pipeline(struct fetch_pipeline_middle_end
*fpme
,
150 const struct draw_vertex_info
*vert_info
,
151 const struct draw_prim_info
*prim_info
)
153 if (prim_info
->linear
)
154 draw_pipeline_run_linear( fpme
->draw
,
158 draw_pipeline_run( fpme
->draw
,
163 static void emit(struct pt_emit
*emit
,
164 const struct draw_vertex_info
*vert_info
,
165 const struct draw_prim_info
*prim_info
)
167 if (prim_info
->linear
) {
168 draw_pt_emit_linear(emit
, vert_info
, prim_info
);
171 draw_pt_emit(emit
, vert_info
, prim_info
);
176 static void draw_vertex_shader_run(struct draw_vertex_shader
*vshader
,
177 const void *constants
[PIPE_MAX_CONSTANT_BUFFERS
],
178 unsigned const_size
[PIPE_MAX_CONSTANT_BUFFERS
],
179 const struct draw_vertex_info
*input_verts
,
180 struct draw_vertex_info
*output_verts
)
182 output_verts
->vertex_size
= input_verts
->vertex_size
;
183 output_verts
->stride
= input_verts
->vertex_size
;
184 output_verts
->count
= input_verts
->count
;
185 output_verts
->verts
=
186 (struct vertex_header
*)MALLOC(output_verts
->vertex_size
*
187 align(output_verts
->count
, 4));
189 vshader
->run_linear(vshader
,
190 (const float (*)[4])input_verts
->verts
->data
,
191 ( float (*)[4])output_verts
->verts
->data
,
195 input_verts
->vertex_size
,
196 input_verts
->vertex_size
);
199 static void fetch_pipeline_generic( struct draw_pt_middle_end
*middle
,
200 const struct draw_fetch_info
*fetch_info
,
201 const struct draw_prim_info
*prim_info
)
203 struct fetch_pipeline_middle_end
*fpme
= (struct fetch_pipeline_middle_end
*)middle
;
204 struct draw_context
*draw
= fpme
->draw
;
205 struct draw_vertex_shader
*vshader
= draw
->vs
.vertex_shader
;
206 struct draw_geometry_shader
*gshader
= draw
->gs
.geometry_shader
;
207 struct draw_prim_info gs_prim_info
;
208 struct draw_vertex_info fetched_vert_info
;
209 struct draw_vertex_info vs_vert_info
;
210 struct draw_vertex_info gs_vert_info
;
211 struct draw_vertex_info
*vert_info
;
212 unsigned opt
= fpme
->opt
;
214 fetched_vert_info
.count
= fetch_info
->count
;
215 fetched_vert_info
.vertex_size
= fpme
->vertex_size
;
216 fetched_vert_info
.stride
= fpme
->vertex_size
;
217 fetched_vert_info
.verts
=
218 (struct vertex_header
*)MALLOC(fpme
->vertex_size
*
219 align(fetch_info
->count
, 4));
220 if (!fetched_vert_info
.verts
) {
225 /* Fetch into our vertex buffer.
227 fetch( fpme
->fetch
, fetch_info
, (char *)fetched_vert_info
.verts
);
229 /* Finished with fetch:
232 vert_info
= &fetched_vert_info
;
234 /* Run the shader, note that this overwrites the data[] parts of
235 * the pipeline verts.
237 if (fpme
->opt
& PT_SHADE
) {
238 draw_vertex_shader_run(vshader
,
239 draw
->pt
.user
.vs_constants
,
240 draw
->pt
.user
.vs_constants_size
,
244 FREE(vert_info
->verts
);
245 vert_info
= &vs_vert_info
;
248 if ((fpme
->opt
& PT_SHADE
) && gshader
) {
249 draw_geometry_shader_run(gshader
,
250 draw
->pt
.user
.gs_constants
,
251 draw
->pt
.user
.gs_constants_size
,
257 FREE(vert_info
->verts
);
258 vert_info
= &gs_vert_info
;
259 prim_info
= &gs_prim_info
;
263 /* Stream output needs to be done before clipping.
265 * XXX: Stream output surely needs to respect the prim_info->elt
268 draw_pt_so_emit( fpme
->so_emit
,
272 if (draw_pt_post_vs_run( fpme
->post_vs
,
278 /* Do we need to run the pipeline?
280 if (opt
& PT_PIPELINE
) {
290 FREE(vert_info
->verts
);
293 static void fetch_pipeline_run( struct draw_pt_middle_end
*middle
,
294 const unsigned *fetch_elts
,
295 unsigned fetch_count
,
296 const ushort
*draw_elts
,
298 unsigned prim_flags
)
300 struct fetch_pipeline_middle_end
*fpme
= (struct fetch_pipeline_middle_end
*)middle
;
301 struct draw_fetch_info fetch_info
;
302 struct draw_prim_info prim_info
;
304 fetch_info
.linear
= FALSE
;
305 fetch_info
.start
= 0;
306 fetch_info
.elts
= fetch_elts
;
307 fetch_info
.count
= fetch_count
;
309 prim_info
.linear
= FALSE
;
311 prim_info
.count
= draw_count
;
312 prim_info
.elts
= draw_elts
;
313 prim_info
.prim
= fpme
->input_prim
;
314 prim_info
.flags
= prim_flags
;
315 prim_info
.primitive_count
= 1;
316 prim_info
.primitive_lengths
= &draw_count
;
318 fetch_pipeline_generic( middle
, &fetch_info
, &prim_info
);
322 static void fetch_pipeline_linear_run( struct draw_pt_middle_end
*middle
,
327 struct fetch_pipeline_middle_end
*fpme
= (struct fetch_pipeline_middle_end
*)middle
;
328 struct draw_fetch_info fetch_info
;
329 struct draw_prim_info prim_info
;
331 fetch_info
.linear
= TRUE
;
332 fetch_info
.start
= start
;
333 fetch_info
.count
= count
;
334 fetch_info
.elts
= NULL
;
336 prim_info
.linear
= TRUE
;
338 prim_info
.count
= count
;
339 prim_info
.elts
= NULL
;
340 prim_info
.prim
= fpme
->input_prim
;
341 prim_info
.flags
= prim_flags
;
342 prim_info
.primitive_count
= 1;
343 prim_info
.primitive_lengths
= &count
;
345 fetch_pipeline_generic( middle
, &fetch_info
, &prim_info
);
350 static boolean
fetch_pipeline_linear_run_elts( struct draw_pt_middle_end
*middle
,
353 const ushort
*draw_elts
,
355 unsigned prim_flags
)
357 struct fetch_pipeline_middle_end
*fpme
= (struct fetch_pipeline_middle_end
*)middle
;
358 struct draw_fetch_info fetch_info
;
359 struct draw_prim_info prim_info
;
361 fetch_info
.linear
= TRUE
;
362 fetch_info
.start
= start
;
363 fetch_info
.count
= count
;
364 fetch_info
.elts
= NULL
;
366 prim_info
.linear
= FALSE
;
368 prim_info
.count
= draw_count
;
369 prim_info
.elts
= draw_elts
;
370 prim_info
.prim
= fpme
->input_prim
;
371 prim_info
.flags
= prim_flags
;
372 prim_info
.primitive_count
= 1;
373 prim_info
.primitive_lengths
= &draw_count
;
375 fetch_pipeline_generic( middle
, &fetch_info
, &prim_info
);
382 static void fetch_pipeline_finish( struct draw_pt_middle_end
*middle
)
387 static void fetch_pipeline_destroy( struct draw_pt_middle_end
*middle
)
389 struct fetch_pipeline_middle_end
*fpme
= (struct fetch_pipeline_middle_end
*)middle
;
392 draw_pt_fetch_destroy( fpme
->fetch
);
395 draw_pt_emit_destroy( fpme
->emit
);
398 draw_pt_so_emit_destroy( fpme
->so_emit
);
401 draw_pt_post_vs_destroy( fpme
->post_vs
);
407 struct draw_pt_middle_end
*draw_pt_fetch_pipeline_or_emit( struct draw_context
*draw
)
409 struct fetch_pipeline_middle_end
*fpme
= CALLOC_STRUCT( fetch_pipeline_middle_end
);
413 fpme
->base
.prepare
= fetch_pipeline_prepare
;
414 fpme
->base
.run
= fetch_pipeline_run
;
415 fpme
->base
.run_linear
= fetch_pipeline_linear_run
;
416 fpme
->base
.run_linear_elts
= fetch_pipeline_linear_run_elts
;
417 fpme
->base
.finish
= fetch_pipeline_finish
;
418 fpme
->base
.destroy
= fetch_pipeline_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
);
442 fetch_pipeline_destroy( &fpme
->base
);