1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 **********************************************************/
26 #include "draw/draw_vbuf.h"
27 #include "draw/draw_context.h"
28 #include "draw/draw_vertex.h"
30 #include "util/u_debug.h"
31 #include "util/u_inlines.h"
32 #include "util/u_math.h"
33 #include "util/u_memory.h"
35 #include "svga_context.h"
36 #include "svga_state.h"
37 #include "svga_swtnl.h"
39 #include "svga_types.h"
41 #include "svga3d_reg.h"
42 #include "svga_draw.h"
43 #include "svga_swtnl_private.h"
46 static const struct vertex_info
*
47 svga_vbuf_render_get_vertex_info( struct vbuf_render
*render
)
49 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
50 struct svga_context
*svga
= svga_render
->svga
;
52 svga_swtnl_update_vdecl(svga
);
54 return &svga_render
->vertex_info
;
59 svga_vbuf_render_allocate_vertices( struct vbuf_render
*render
,
63 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
64 struct svga_context
*svga
= svga_render
->svga
;
65 struct pipe_screen
*screen
= svga
->pipe
.screen
;
66 size_t size
= (size_t)nr_vertices
* (size_t)vertex_size
;
67 boolean new_vbuf
= FALSE
;
68 boolean new_ibuf
= FALSE
;
70 if (svga_render
->vertex_size
!= vertex_size
)
71 svga
->swtnl
.new_vdecl
= TRUE
;
72 svga_render
->vertex_size
= (size_t)vertex_size
;
74 if (svga
->swtnl
.new_vbuf
)
75 new_ibuf
= new_vbuf
= TRUE
;
76 svga
->swtnl
.new_vbuf
= FALSE
;
78 if (svga_render
->vbuf_size
< svga_render
->vbuf_offset
+ svga_render
->vbuf_used
+ size
)
82 pipe_resource_reference(&svga_render
->vbuf
, NULL
);
84 pipe_resource_reference(&svga_render
->ibuf
, NULL
);
86 if (!svga_render
->vbuf
) {
87 svga_render
->vbuf_size
= MAX2(size
, svga_render
->vbuf_alloc_size
);
88 svga_render
->vbuf
= pipe_buffer_create(screen
,
89 PIPE_BIND_VERTEX_BUFFER
,
91 svga_render
->vbuf_size
);
92 if(!svga_render
->vbuf
) {
93 svga_context_flush(svga
, NULL
);
94 assert(!svga_render
->vbuf
);
95 svga_render
->vbuf
= pipe_buffer_create(screen
,
96 PIPE_BIND_VERTEX_BUFFER
,
98 svga_render
->vbuf_size
);
99 /* The buffer allocation may fail if we run out of memory.
100 * The draw module's vbuf code should handle that without crashing.
104 svga
->swtnl
.new_vdecl
= TRUE
;
105 svga_render
->vbuf_offset
= 0;
107 svga_render
->vbuf_offset
+= svga_render
->vbuf_used
;
110 svga_render
->vbuf_used
= 0;
112 if (svga
->swtnl
.new_vdecl
)
113 svga_render
->vdecl_offset
= svga_render
->vbuf_offset
;
119 svga_vbuf_render_map_vertices( struct vbuf_render
*render
)
121 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
122 struct svga_context
*svga
= svga_render
->svga
;
124 if (svga_render
->vbuf
) {
125 char *ptr
= (char*)pipe_buffer_map(&svga
->pipe
,
127 PIPE_TRANSFER_WRITE
|
128 PIPE_TRANSFER_FLUSH_EXPLICIT
|
129 PIPE_TRANSFER_DISCARD_RANGE
|
130 PIPE_TRANSFER_UNSYNCHRONIZED
,
131 &svga_render
->vbuf_transfer
);
133 return ptr
+ svga_render
->vbuf_offset
;
135 svga_render
->vbuf_transfer
= NULL
;
140 /* we probably ran out of memory when allocating the vertex buffer */
146 svga_vbuf_render_unmap_vertices( struct vbuf_render
*render
,
150 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
151 struct svga_context
*svga
= svga_render
->svga
;
152 unsigned offset
, length
;
153 size_t used
= svga_render
->vertex_size
* ((size_t)max_index
+ 1);
155 offset
= svga_render
->vbuf_offset
+ svga_render
->vertex_size
* min_index
;
156 length
= svga_render
->vertex_size
* (max_index
+ 1 - min_index
);
157 pipe_buffer_flush_mapped_range(&svga
->pipe
,
158 svga_render
->vbuf_transfer
,
160 pipe_buffer_unmap(&svga
->pipe
, svga_render
->vbuf_transfer
);
161 svga_render
->min_index
= min_index
;
162 svga_render
->max_index
= max_index
;
163 svga_render
->vbuf_used
= MAX2(svga_render
->vbuf_used
, used
);
167 svga_vbuf_render_set_primitive( struct vbuf_render
*render
,
170 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
171 svga_render
->prim
= prim
;
175 svga_vbuf_submit_state( struct svga_vbuf_render
*svga_render
)
177 struct svga_context
*svga
= svga_render
->svga
;
178 SVGA3dVertexDecl vdecl
[PIPE_MAX_ATTRIBS
];
182 /* if the vdecl or vbuf hasn't changed do nothing */
183 if (!svga
->swtnl
.new_vdecl
)
186 memcpy(vdecl
, svga_render
->vdecl
, sizeof(vdecl
));
188 /* flush the hw state */
189 ret
= svga_hwtnl_flush(svga
->hwtnl
);
190 if (ret
!= PIPE_OK
) {
191 svga_context_flush(svga
, NULL
);
192 ret
= svga_hwtnl_flush(svga
->hwtnl
);
193 /* if we hit this path we might become synced with hw */
194 svga
->swtnl
.new_vbuf
= TRUE
;
198 svga_hwtnl_reset_vdecl(svga
->hwtnl
, svga_render
->vdecl_count
);
200 for (i
= 0; i
< svga_render
->vdecl_count
; i
++) {
201 vdecl
[i
].array
.offset
+= svga_render
->vdecl_offset
;
203 svga_hwtnl_vdecl( svga
->hwtnl
,
209 /* We have already taken care of flatshading, so let the hwtnl
210 * module use whatever is most convenient:
212 if (svga
->state
.sw
.need_pipeline
) {
213 svga_hwtnl_set_flatshade(svga
->hwtnl
, FALSE
, FALSE
);
214 svga_hwtnl_set_unfilled(svga
->hwtnl
, PIPE_POLYGON_MODE_FILL
);
217 svga_hwtnl_set_flatshade( svga
->hwtnl
,
218 svga
->curr
.rast
->templ
.flatshade
,
219 svga
->curr
.rast
->templ
.flatshade_first
);
221 svga_hwtnl_set_unfilled( svga
->hwtnl
,
222 svga
->curr
.rast
->hw_unfilled
);
225 svga
->swtnl
.new_vdecl
= FALSE
;
229 svga_vbuf_render_draw_arrays( struct vbuf_render
*render
,
233 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
234 struct svga_context
*svga
= svga_render
->svga
;
235 unsigned bias
= (svga_render
->vbuf_offset
- svga_render
->vdecl_offset
) / svga_render
->vertex_size
;
236 enum pipe_error ret
= PIPE_OK
;
238 /* off to hardware */
239 svga_vbuf_submit_state(svga_render
);
241 /* Need to call update_state() again as the draw module may have
242 * altered some of our state behind our backs. Testcase:
245 svga_update_state_retry( svga
, SVGA_STATE_HW_DRAW
);
247 ret
= svga_hwtnl_draw_arrays(svga
->hwtnl
, svga_render
->prim
, start
+ bias
, nr
);
248 if (ret
!= PIPE_OK
) {
249 svga_context_flush(svga
, NULL
);
250 ret
= svga_hwtnl_draw_arrays(svga
->hwtnl
, svga_render
->prim
, start
+ bias
, nr
);
251 svga
->swtnl
.new_vbuf
= TRUE
;
252 assert(ret
== PIPE_OK
);
258 svga_vbuf_render_draw_elements( struct vbuf_render
*render
,
259 const ushort
*indices
,
262 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
263 struct svga_context
*svga
= svga_render
->svga
;
264 struct pipe_screen
*screen
= svga
->pipe
.screen
;
265 int bias
= (svga_render
->vbuf_offset
- svga_render
->vdecl_offset
) / svga_render
->vertex_size
;
267 size_t size
= 2 * nr_indices
;
269 assert(( svga_render
->vbuf_offset
- svga_render
->vdecl_offset
) % svga_render
->vertex_size
== 0);
271 if (svga_render
->ibuf_size
< svga_render
->ibuf_offset
+ size
)
272 pipe_resource_reference(&svga_render
->ibuf
, NULL
);
274 if (!svga_render
->ibuf
) {
275 svga_render
->ibuf_size
= MAX2(size
, svga_render
->ibuf_alloc_size
);
276 svga_render
->ibuf
= pipe_buffer_create(screen
,
277 PIPE_BIND_INDEX_BUFFER
,
279 svga_render
->ibuf_size
);
280 svga_render
->ibuf_offset
= 0;
283 pipe_buffer_write_nooverlap(&svga
->pipe
, svga_render
->ibuf
,
284 svga_render
->ibuf_offset
, 2 * nr_indices
, indices
);
286 /* off to hardware */
287 svga_vbuf_submit_state(svga_render
);
289 /* Need to call update_state() again as the draw module may have
290 * altered some of our state behind our backs. Testcase:
293 svga_update_state_retry( svga
, SVGA_STATE_HW_DRAW
);
295 ret
= svga_hwtnl_draw_range_elements(svga
->hwtnl
,
299 svga_render
->min_index
,
300 svga_render
->max_index
,
302 svga_render
->ibuf_offset
/ 2, nr_indices
);
304 svga_context_flush(svga
, NULL
);
305 ret
= svga_hwtnl_draw_range_elements(svga
->hwtnl
,
309 svga_render
->min_index
,
310 svga_render
->max_index
,
312 svga_render
->ibuf_offset
/ 2, nr_indices
);
313 svga
->swtnl
.new_vbuf
= TRUE
;
314 assert(ret
== PIPE_OK
);
317 svga_render
->ibuf_offset
+= size
;
322 svga_vbuf_render_release_vertices( struct vbuf_render
*render
)
329 svga_vbuf_render_destroy( struct vbuf_render
*render
)
331 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
333 pipe_resource_reference(&svga_render
->vbuf
, NULL
);
334 pipe_resource_reference(&svga_render
->ibuf
, NULL
);
340 * Create a new primitive render.
343 svga_vbuf_render_create( struct svga_context
*svga
)
345 struct svga_vbuf_render
*svga_render
= CALLOC_STRUCT(svga_vbuf_render
);
347 svga_render
->svga
= svga
;
348 svga_render
->ibuf_size
= 0;
349 svga_render
->vbuf_size
= 0;
350 svga_render
->ibuf_alloc_size
= 4*1024;
351 svga_render
->vbuf_alloc_size
= 64*1024;
352 svga_render
->base
.max_vertex_buffer_bytes
= 64*1024/10;
353 svga_render
->base
.max_indices
= 65536;
354 svga_render
->base
.get_vertex_info
= svga_vbuf_render_get_vertex_info
;
355 svga_render
->base
.allocate_vertices
= svga_vbuf_render_allocate_vertices
;
356 svga_render
->base
.map_vertices
= svga_vbuf_render_map_vertices
;
357 svga_render
->base
.unmap_vertices
= svga_vbuf_render_unmap_vertices
;
358 svga_render
->base
.set_primitive
= svga_vbuf_render_set_primitive
;
359 svga_render
->base
.draw_elements
= svga_vbuf_render_draw_elements
;
360 svga_render
->base
.draw_arrays
= svga_vbuf_render_draw_arrays
;
361 svga_render
->base
.release_vertices
= svga_vbuf_render_release_vertices
;
362 svga_render
->base
.destroy
= svga_vbuf_render_destroy
;
364 return &svga_render
->base
;