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 "pipe/p_inlines.h"
32 #include "util/u_math.h"
33 #include "util/u_memory.h"
34 #include "util/u_simple_shaders.h"
36 #include "svga_context.h"
37 #include "svga_state.h"
38 #include "svga_swtnl.h"
40 #include "svga_types.h"
42 #include "svga3d_reg.h"
43 #include "svga_draw.h"
44 #include "svga_swtnl_private.h"
47 static const struct vertex_info
*
48 svga_vbuf_render_get_vertex_info( struct vbuf_render
*render
)
50 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
51 struct svga_context
*svga
= svga_render
->svga
;
53 svga_swtnl_update_vdecl(svga
);
55 return &svga_render
->vertex_info
;
60 svga_vbuf_render_allocate_vertices( struct vbuf_render
*render
,
64 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
65 struct svga_context
*svga
= svga_render
->svga
;
66 struct pipe_screen
*screen
= svga
->pipe
.screen
;
67 size_t size
= (size_t)nr_vertices
* (size_t)vertex_size
;
68 boolean new_vbuf
= FALSE
;
69 boolean new_ibuf
= FALSE
;
71 if (svga_render
->vertex_size
!= vertex_size
)
72 svga
->swtnl
.new_vdecl
= TRUE
;
73 svga_render
->vertex_size
= (size_t)vertex_size
;
75 if (svga
->swtnl
.new_vbuf
)
76 new_ibuf
= new_vbuf
= TRUE
;
77 svga
->swtnl
.new_vbuf
= FALSE
;
79 if (svga_render
->vbuf_size
< svga_render
->vbuf_offset
+ svga_render
->vbuf_used
+ size
)
83 pipe_buffer_reference(&svga_render
->vbuf
, NULL
);
85 pipe_buffer_reference(&svga_render
->ibuf
, NULL
);
87 if (!svga_render
->vbuf
) {
88 svga_render
->vbuf_size
= MAX2(size
, svga_render
->vbuf_alloc_size
);
89 svga_render
->vbuf
= pipe_buffer_create(screen
,
91 PIPE_BUFFER_USAGE_VERTEX
,
92 svga_render
->vbuf_size
);
93 if(!svga_render
->vbuf
) {
94 svga_context_flush(svga
, NULL
);
95 svga_render
->vbuf
= pipe_buffer_create(screen
,
97 PIPE_BUFFER_USAGE_VERTEX
,
98 svga_render
->vbuf_size
);
99 assert(svga_render
->vbuf
);
102 svga
->swtnl
.new_vdecl
= TRUE
;
103 svga_render
->vbuf_offset
= 0;
105 svga_render
->vbuf_offset
+= svga_render
->vbuf_used
;
108 svga_render
->vbuf_used
= 0;
110 if (svga
->swtnl
.new_vdecl
)
111 svga_render
->vdecl_offset
= svga_render
->vbuf_offset
;
117 svga_vbuf_render_map_vertices( struct vbuf_render
*render
)
119 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
120 struct svga_context
*svga
= svga_render
->svga
;
121 struct pipe_screen
*screen
= svga
->pipe
.screen
;
123 char *ptr
= (char*)pipe_buffer_map(screen
,
125 PIPE_BUFFER_USAGE_CPU_WRITE
|
126 PIPE_BUFFER_USAGE_FLUSH_EXPLICIT
);
127 return ptr
+ svga_render
->vbuf_offset
;
131 svga_vbuf_render_unmap_vertices( struct vbuf_render
*render
,
135 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
136 struct svga_context
*svga
= svga_render
->svga
;
137 struct pipe_screen
*screen
= svga
->pipe
.screen
;
138 unsigned offset
, length
;
139 size_t used
= svga_render
->vertex_size
* ((size_t)max_index
+ 1);
141 offset
= svga_render
->vbuf_offset
+ svga_render
->vertex_size
* min_index
;
142 length
= svga_render
->vertex_size
* (max_index
+ 1 - min_index
);
143 pipe_buffer_flush_mapped_range(screen
, svga_render
->vbuf
, offset
, length
);
144 pipe_buffer_unmap(screen
, svga_render
->vbuf
);
145 svga_render
->min_index
= min_index
;
146 svga_render
->max_index
= max_index
;
147 svga_render
->vbuf_used
= MAX2(svga_render
->vbuf_used
, used
);
151 svga_vbuf_render_set_primitive( struct vbuf_render
*render
,
154 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
155 svga_render
->prim
= prim
;
161 svga_vbuf_sumbit_state( struct svga_vbuf_render
*svga_render
)
163 struct svga_context
*svga
= svga_render
->svga
;
164 SVGA3dVertexDecl vdecl
[PIPE_MAX_ATTRIBS
];
168 /* if the vdecl or vbuf hasn't changed do nothing */
169 if (!svga
->swtnl
.new_vdecl
)
172 memcpy(vdecl
, svga_render
->vdecl
, sizeof(vdecl
));
174 /* flush the hw state */
175 ret
= svga_hwtnl_flush(svga
->hwtnl
);
177 svga_context_flush(svga
, NULL
);
178 ret
= svga_hwtnl_flush(svga
->hwtnl
);
179 /* if we hit this path we might become synced with hw */
180 svga
->swtnl
.new_vbuf
= TRUE
;
184 svga_hwtnl_reset_vdecl(svga
->hwtnl
, svga_render
->vdecl_count
);
186 for (i
= 0; i
< svga_render
->vdecl_count
; i
++) {
187 vdecl
[i
].array
.offset
+= svga_render
->vdecl_offset
;
189 svga_hwtnl_vdecl( svga
->hwtnl
,
195 /* We have already taken care of flatshading, so let the hwtnl
196 * module use whatever is most convenient:
198 if (svga
->state
.sw
.need_pipeline
) {
199 svga_hwtnl_set_flatshade(svga
->hwtnl
, FALSE
, FALSE
);
200 svga_hwtnl_set_unfilled(svga
->hwtnl
, PIPE_POLYGON_MODE_FILL
);
203 svga_hwtnl_set_flatshade( svga
->hwtnl
,
204 svga
->curr
.rast
->templ
.flatshade
,
205 svga
->curr
.rast
->templ
.flatshade_first
);
207 svga_hwtnl_set_unfilled( svga
->hwtnl
,
208 svga
->curr
.rast
->hw_unfilled
);
211 svga
->swtnl
.new_vdecl
= FALSE
;
215 svga_vbuf_render_draw_arrays( struct vbuf_render
*render
,
219 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
220 struct svga_context
*svga
= svga_render
->svga
;
221 unsigned bias
= (svga_render
->vbuf_offset
- svga_render
->vdecl_offset
) / svga_render
->vertex_size
;
222 enum pipe_error ret
= 0;
224 svga_vbuf_sumbit_state(svga_render
);
226 /* Need to call update_state() again as the draw module may have
227 * altered some of our state behind our backs. Testcase:
230 svga_update_state_retry( svga
, SVGA_STATE_HW_DRAW
);
232 ret
= svga_hwtnl_draw_arrays(svga
->hwtnl
, svga_render
->prim
, start
+ bias
, nr
);
233 if (ret
!= PIPE_OK
) {
234 svga_context_flush(svga
, NULL
);
235 ret
= svga_hwtnl_draw_arrays(svga
->hwtnl
, svga_render
->prim
, start
+ bias
, nr
);
236 svga
->swtnl
.new_vbuf
= TRUE
;
237 assert(ret
== PIPE_OK
);
243 svga_vbuf_render_draw( struct vbuf_render
*render
,
244 const ushort
*indices
,
247 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
248 struct svga_context
*svga
= svga_render
->svga
;
249 struct pipe_screen
*screen
= svga
->pipe
.screen
;
250 unsigned bias
= (svga_render
->vbuf_offset
- svga_render
->vdecl_offset
) / svga_render
->vertex_size
;
252 size_t size
= 2 * nr_indices
;
254 assert(( svga_render
->vbuf_offset
- svga_render
->vdecl_offset
) % svga_render
->vertex_size
== 0);
256 if (svga_render
->ibuf_size
< svga_render
->ibuf_offset
+ size
)
257 pipe_buffer_reference(&svga_render
->ibuf
, NULL
);
259 if (!svga_render
->ibuf
) {
260 svga_render
->ibuf_size
= MAX2(size
, svga_render
->ibuf_alloc_size
);
261 svga_render
->ibuf
= pipe_buffer_create(screen
,
263 PIPE_BUFFER_USAGE_VERTEX
,
264 svga_render
->ibuf_size
);
265 svga_render
->ibuf_offset
= 0;
268 pipe_buffer_write(screen
, svga_render
->ibuf
,
269 svga_render
->ibuf_offset
, 2 * nr_indices
, indices
);
272 /* off to hardware */
273 svga_vbuf_sumbit_state(svga_render
);
275 /* Need to call update_state() again as the draw module may have
276 * altered some of our state behind our backs. Testcase:
279 svga_update_state_retry( svga
, SVGA_STATE_HW_DRAW
);
281 ret
= svga_hwtnl_draw_range_elements(svga
->hwtnl
,
284 svga_render
->min_index
,
285 svga_render
->max_index
,
287 svga_render
->ibuf_offset
/ 2, nr_indices
, bias
);
289 svga_context_flush(svga
, NULL
);
290 ret
= svga_hwtnl_draw_range_elements(svga
->hwtnl
,
293 svga_render
->min_index
,
294 svga_render
->max_index
,
296 svga_render
->ibuf_offset
/ 2, nr_indices
, bias
);
297 svga
->swtnl
.new_vbuf
= TRUE
;
298 assert(ret
== PIPE_OK
);
301 svga_render
->ibuf_offset
+= size
;
306 svga_vbuf_render_release_vertices( struct vbuf_render
*render
)
313 svga_vbuf_render_destroy( struct vbuf_render
*render
)
315 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
317 pipe_buffer_reference(&svga_render
->vbuf
, NULL
);
318 pipe_buffer_reference(&svga_render
->ibuf
, NULL
);
324 * Create a new primitive render.
327 svga_vbuf_render_create( struct svga_context
*svga
)
329 struct svga_vbuf_render
*svga_render
= CALLOC_STRUCT(svga_vbuf_render
);
331 svga_render
->svga
= svga
;
332 svga_render
->ibuf_size
= 0;
333 svga_render
->vbuf_size
= 0;
334 svga_render
->ibuf_alloc_size
= 4*1024;
335 svga_render
->vbuf_alloc_size
= 64*1024;
336 svga_render
->base
.max_vertex_buffer_bytes
= 64*1024/10;
337 svga_render
->base
.max_indices
= 65536;
338 svga_render
->base
.get_vertex_info
= svga_vbuf_render_get_vertex_info
;
339 svga_render
->base
.allocate_vertices
= svga_vbuf_render_allocate_vertices
;
340 svga_render
->base
.map_vertices
= svga_vbuf_render_map_vertices
;
341 svga_render
->base
.unmap_vertices
= svga_vbuf_render_unmap_vertices
;
342 svga_render
->base
.set_primitive
= svga_vbuf_render_set_primitive
;
343 svga_render
->base
.draw
= svga_vbuf_render_draw
;
344 svga_render
->base
.draw_arrays
= svga_vbuf_render_draw_arrays
;
345 svga_render
->base
.release_vertices
= svga_vbuf_render_release_vertices
;
346 svga_render
->base
.destroy
= svga_vbuf_render_destroy
;
348 return &svga_render
->base
;