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 "pipe/p_util.h"
29 #include "draw/draw_context.h"
30 #include "draw/draw_vbuf.h"
31 #include "draw/draw_vertex.h"
32 #include "draw/draw_pt.h"
33 #include "draw/draw_vs.h"
34 #include "translate/translate.h"
37 struct fetch_pipeline_middle_end
{
38 struct draw_pt_middle_end base
;
39 struct draw_context
*draw
;
42 struct pt_fetch
*fetch
;
43 struct pt_post_vs
*post_vs
;
45 unsigned vertex_data_offset
;
52 static void fetch_pipeline_prepare( struct draw_pt_middle_end
*middle
,
55 unsigned *max_vertices
)
57 struct fetch_pipeline_middle_end
*fpme
= (struct fetch_pipeline_middle_end
*)middle
;
58 struct draw_context
*draw
= fpme
->draw
;
59 struct draw_vertex_shader
*vs
= draw
->vs
.vertex_shader
;
61 /* Add one to num_outputs because the pipeline occasionally tags on
62 * an additional texcoord, eg for AA lines.
64 unsigned nr
= MAX2( vs
->info
.num_inputs
,
65 vs
->info
.num_outputs
+ 1 );
70 /* Always leave room for the vertex header whether we need it or
71 * not. It's hard to get rid of it in particular because of the
72 * viewport code in draw_pt_post_vs.c.
74 fpme
->vertex_size
= sizeof(struct vertex_header
) + nr
* 4 * sizeof(float);
78 draw_pt_fetch_prepare( fpme
->fetch
,
81 /* XXX: it's not really gl rasterization rules we care about here,
82 * but gl vs dx9 clip spaces.
84 draw_pt_post_vs_prepare( fpme
->post_vs
,
85 (boolean
)draw
->bypass_clipping
,
86 (boolean
)draw
->identity_viewport
,
87 (boolean
)draw
->rasterizer
->gl_rasterization_rules
);
90 if (!(opt
& PT_PIPELINE
)) {
91 draw_pt_emit_prepare( fpme
->emit
,
95 *max_vertices
= MAX2( *max_vertices
,
96 DRAW_PIPE_MAX_VERTICES
);
99 *max_vertices
= DRAW_PIPE_MAX_VERTICES
;
102 /* No need to prepare the shader.
104 vs
->prepare(vs
, draw
);
109 static void fetch_pipeline_run( struct draw_pt_middle_end
*middle
,
110 const unsigned *fetch_elts
,
111 unsigned fetch_count
,
112 const ushort
*draw_elts
,
113 unsigned draw_count
)
115 struct fetch_pipeline_middle_end
*fpme
= (struct fetch_pipeline_middle_end
*)middle
;
116 struct draw_context
*draw
= fpme
->draw
;
117 struct draw_vertex_shader
*shader
= draw
->vs
.vertex_shader
;
118 unsigned opt
= fpme
->opt
;
119 unsigned alloc_count
= align_int( fetch_count
, 4 );
121 struct vertex_header
*pipeline_verts
=
122 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
124 if (!pipeline_verts
) {
125 /* Not much we can do here - just skip the rendering.
131 /* Fetch into our vertex buffer
133 draw_pt_fetch_run( fpme
->fetch
,
136 (char *)pipeline_verts
);
138 /* Run the shader, note that this overwrites the data[] parts of
139 * the pipeline verts. If there is no shader, ie a bypass shader,
140 * then the inputs == outputs, and are already in the correct
145 shader
->run_linear(shader
,
146 (const float (*)[4])pipeline_verts
->data
,
147 ( float (*)[4])pipeline_verts
->data
,
148 (const float (*)[4])draw
->pt
.user
.constants
,
154 if (draw_pt_post_vs_run( fpme
->post_vs
,
162 /* Do we need to run the pipeline?
164 if (opt
& PT_PIPELINE
) {
165 draw_pipeline_run( fpme
->draw
,
174 draw_pt_emit( fpme
->emit
,
175 (const float (*)[4])pipeline_verts
->data
,
183 FREE(pipeline_verts
);
187 static void fetch_pipeline_linear_run( struct draw_pt_middle_end
*middle
,
191 struct fetch_pipeline_middle_end
*fpme
= (struct fetch_pipeline_middle_end
*)middle
;
192 struct draw_context
*draw
= fpme
->draw
;
193 struct draw_vertex_shader
*shader
= draw
->vs
.vertex_shader
;
194 unsigned opt
= fpme
->opt
;
195 unsigned alloc_count
= align_int( count
, 4 );
197 struct vertex_header
*pipeline_verts
=
198 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
200 if (!pipeline_verts
) {
201 /* Not much we can do here - just skip the rendering.
207 /* Fetch into our vertex buffer
209 draw_pt_fetch_run_linear( fpme
->fetch
,
212 (char *)pipeline_verts
);
214 /* Run the shader, note that this overwrites the data[] parts of
215 * the pipeline verts. If there is no shader, ie a bypass shader,
216 * then the inputs == outputs, and are already in the correct
221 shader
->run_linear(shader
,
222 (const float (*)[4])pipeline_verts
->data
,
223 ( float (*)[4])pipeline_verts
->data
,
224 (const float (*)[4])draw
->pt
.user
.constants
,
230 if (draw_pt_post_vs_run( fpme
->post_vs
,
238 /* Do we need to run the pipeline?
240 if (opt
& PT_PIPELINE
) {
241 draw_pipeline_run_linear( fpme
->draw
,
248 draw_pt_emit_linear( fpme
->emit
,
249 (const float (*)[4])pipeline_verts
->data
,
256 FREE(pipeline_verts
);
261 static void fetch_pipeline_linear_run_elts( struct draw_pt_middle_end
*middle
,
264 const ushort
*draw_elts
,
265 unsigned draw_count
)
267 struct fetch_pipeline_middle_end
*fpme
= (struct fetch_pipeline_middle_end
*)middle
;
268 struct draw_context
*draw
= fpme
->draw
;
269 struct draw_vertex_shader
*shader
= draw
->vs
.vertex_shader
;
270 unsigned opt
= fpme
->opt
;
271 unsigned alloc_count
= align_int( count
, 4 );
273 struct vertex_header
*pipeline_verts
=
274 (struct vertex_header
*)MALLOC(fpme
->vertex_size
* alloc_count
);
276 if (!pipeline_verts
) {
277 /* Not much we can do here - just skip the rendering.
283 /* Fetch into our vertex buffer
285 draw_pt_fetch_run_linear( fpme
->fetch
,
288 (char *)pipeline_verts
);
290 /* Run the shader, note that this overwrites the data[] parts of
291 * the pipeline verts. If there is no shader, ie a bypass shader,
292 * then the inputs == outputs, and are already in the correct
297 shader
->run_linear(shader
,
298 (const float (*)[4])pipeline_verts
->data
,
299 ( float (*)[4])pipeline_verts
->data
,
300 (const float (*)[4])draw
->pt
.user
.constants
,
306 if (draw_pt_post_vs_run( fpme
->post_vs
,
314 /* Do we need to run the pipeline?
316 if (opt
& PT_PIPELINE
) {
317 draw_pipeline_run( fpme
->draw
,
326 draw_pt_emit( fpme
->emit
,
327 (const float (*)[4])pipeline_verts
->data
,
334 FREE(pipeline_verts
);
339 static void fetch_pipeline_finish( struct draw_pt_middle_end
*middle
)
344 static void fetch_pipeline_destroy( struct draw_pt_middle_end
*middle
)
346 struct fetch_pipeline_middle_end
*fpme
= (struct fetch_pipeline_middle_end
*)middle
;
349 draw_pt_fetch_destroy( fpme
->fetch
);
352 draw_pt_emit_destroy( fpme
->emit
);
355 draw_pt_post_vs_destroy( fpme
->post_vs
);
361 struct draw_pt_middle_end
*draw_pt_fetch_pipeline_or_emit( struct draw_context
*draw
)
363 struct fetch_pipeline_middle_end
*fpme
= CALLOC_STRUCT( fetch_pipeline_middle_end
);
367 fpme
->base
.prepare
= fetch_pipeline_prepare
;
368 fpme
->base
.run
= fetch_pipeline_run
;
369 fpme
->base
.run_linear
= fetch_pipeline_linear_run
;
370 fpme
->base
.run_linear_elts
= fetch_pipeline_linear_run_elts
;
371 fpme
->base
.finish
= fetch_pipeline_finish
;
372 fpme
->base
.destroy
= fetch_pipeline_destroy
;
376 fpme
->fetch
= draw_pt_fetch_create( draw
);
380 fpme
->post_vs
= draw_pt_post_vs_create( draw
);
384 fpme
->emit
= draw_pt_emit_create( draw
);
392 fetch_pipeline_destroy( &fpme
->base
);