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_shader.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_resource_reference(&svga_render
->vbuf
, NULL
);
85 pipe_resource_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
,
90 PIPE_BIND_VERTEX_BUFFER
,
92 svga_render
->vbuf_size
);
93 if(!svga_render
->vbuf
) {
94 svga_context_flush(svga
, NULL
);
95 assert(!svga_render
->vbuf
);
96 svga_render
->vbuf
= pipe_buffer_create(screen
,
97 PIPE_BIND_VERTEX_BUFFER
,
99 svga_render
->vbuf_size
);
100 /* The buffer allocation may fail if we run out of memory.
101 * The draw module's vbuf code should handle that without crashing.
105 svga
->swtnl
.new_vdecl
= TRUE
;
106 svga_render
->vbuf_offset
= 0;
108 svga_render
->vbuf_offset
+= svga_render
->vbuf_used
;
111 svga_render
->vbuf_used
= 0;
113 if (svga
->swtnl
.new_vdecl
)
114 svga_render
->vdecl_offset
= svga_render
->vbuf_offset
;
120 svga_vbuf_render_map_vertices( struct vbuf_render
*render
)
122 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
123 struct svga_context
*svga
= svga_render
->svga
;
125 if (svga_render
->vbuf
) {
126 char *ptr
= (char*)pipe_buffer_map(&svga
->pipe
,
128 PIPE_TRANSFER_WRITE
|
129 PIPE_TRANSFER_FLUSH_EXPLICIT
|
130 PIPE_TRANSFER_DISCARD_RANGE
|
131 PIPE_TRANSFER_UNSYNCHRONIZED
,
132 &svga_render
->vbuf_transfer
);
134 svga_render
->vbuf_ptr
= ptr
;
135 return ptr
+ svga_render
->vbuf_offset
;
138 svga_render
->vbuf_ptr
= NULL
;
139 svga_render
->vbuf_transfer
= NULL
;
144 /* we probably ran out of memory when allocating the vertex buffer */
150 svga_vbuf_render_unmap_vertices( struct vbuf_render
*render
,
154 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
155 struct svga_context
*svga
= svga_render
->svga
;
156 unsigned offset
, length
;
157 size_t used
= svga_render
->vertex_size
* ((size_t)max_index
+ 1);
159 offset
= svga_render
->vbuf_offset
+ svga_render
->vertex_size
* min_index
;
160 length
= svga_render
->vertex_size
* (max_index
+ 1 - min_index
);
163 /* dump vertex data */
164 const float *f
= (const float *) ((char *) svga_render
->vbuf_ptr
+
165 svga_render
->vbuf_offset
);
167 debug_printf("swtnl vertex data:\n");
168 for (i
= 0; i
< length
/ 4; i
+= 4) {
169 debug_printf("%u: %f %f %f %f\n", i
, f
[i
], f
[i
+1], f
[i
+2], f
[i
+3]);
173 pipe_buffer_flush_mapped_range(&svga
->pipe
,
174 svga_render
->vbuf_transfer
,
176 pipe_buffer_unmap(&svga
->pipe
, svga_render
->vbuf_transfer
);
177 svga_render
->min_index
= min_index
;
178 svga_render
->max_index
= max_index
;
179 svga_render
->vbuf_used
= MAX2(svga_render
->vbuf_used
, used
);
183 svga_vbuf_render_set_primitive( struct vbuf_render
*render
,
186 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
187 svga_render
->prim
= prim
;
191 svga_vbuf_submit_state( struct svga_vbuf_render
*svga_render
)
193 struct svga_context
*svga
= svga_render
->svga
;
194 SVGA3dVertexDecl vdecl
[PIPE_MAX_ATTRIBS
];
197 static const unsigned zero
[PIPE_MAX_ATTRIBS
] = {0};
199 /* if the vdecl or vbuf hasn't changed do nothing */
200 if (!svga
->swtnl
.new_vdecl
)
203 memcpy(vdecl
, svga_render
->vdecl
, sizeof(vdecl
));
205 /* flush the hw state */
206 ret
= svga_hwtnl_flush(svga
->hwtnl
);
207 if (ret
!= PIPE_OK
) {
208 svga_context_flush(svga
, NULL
);
209 ret
= svga_hwtnl_flush(svga
->hwtnl
);
210 /* if we hit this path we might become synced with hw */
211 svga
->swtnl
.new_vbuf
= TRUE
;
212 assert(ret
== PIPE_OK
);
215 for (i
= 0; i
< svga_render
->vdecl_count
; i
++) {
216 vdecl
[i
].array
.offset
+= svga_render
->vdecl_offset
;
219 svga_hwtnl_vertex_decls(svga
->hwtnl
,
220 svga_render
->vdecl_count
,
223 svga_render
->layout_id
);
225 /* Specify the vertex buffer (there's only ever one) */
227 struct pipe_vertex_buffer vb
;
228 vb
.buffer
= svga_render
->vbuf
;
229 vb
.buffer_offset
= svga_render
->vdecl_offset
;
230 vb
.stride
= vdecl
[0].array
.stride
;
231 vb
.user_buffer
= NULL
;
232 svga_hwtnl_vertex_buffers(svga
->hwtnl
, 1, &vb
);
235 /* We have already taken care of flatshading, so let the hwtnl
236 * module use whatever is most convenient:
238 if (svga
->state
.sw
.need_pipeline
) {
239 svga_hwtnl_set_flatshade(svga
->hwtnl
, FALSE
, FALSE
);
240 svga_hwtnl_set_fillmode(svga
->hwtnl
, PIPE_POLYGON_MODE_FILL
);
243 svga_hwtnl_set_flatshade( svga
->hwtnl
,
244 svga
->curr
.rast
->templ
.flatshade
||
245 svga
->state
.hw_draw
.fs
->uses_flat_interp
,
246 svga
->curr
.rast
->templ
.flatshade_first
);
248 svga_hwtnl_set_fillmode(svga
->hwtnl
, svga
->curr
.rast
->hw_fillmode
);
251 svga
->swtnl
.new_vdecl
= FALSE
;
255 svga_vbuf_render_draw_arrays( struct vbuf_render
*render
,
256 unsigned start
, uint nr
)
258 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
259 struct svga_context
*svga
= svga_render
->svga
;
260 unsigned bias
= (svga_render
->vbuf_offset
- svga_render
->vdecl_offset
) / svga_render
->vertex_size
;
261 enum pipe_error ret
= PIPE_OK
;
262 /* instancing will already have been resolved at this point by 'draw' */
263 const unsigned start_instance
= 0;
264 const unsigned instance_count
= 1;
266 /* off to hardware */
267 svga_vbuf_submit_state(svga_render
);
269 /* Need to call update_state() again as the draw module may have
270 * altered some of our state behind our backs. Testcase:
273 svga_update_state_retry( svga
, SVGA_STATE_HW_DRAW
);
275 ret
= svga_hwtnl_draw_arrays(svga
->hwtnl
, svga_render
->prim
, start
+ bias
, nr
,
276 start_instance
, instance_count
);
277 if (ret
!= PIPE_OK
) {
278 svga_context_flush(svga
, NULL
);
279 ret
= svga_hwtnl_draw_arrays(svga
->hwtnl
, svga_render
->prim
,
281 start_instance
, instance_count
);
282 svga
->swtnl
.new_vbuf
= TRUE
;
283 assert(ret
== PIPE_OK
);
289 svga_vbuf_render_draw_elements( struct vbuf_render
*render
,
290 const ushort
*indices
,
293 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
294 struct svga_context
*svga
= svga_render
->svga
;
295 struct pipe_screen
*screen
= svga
->pipe
.screen
;
296 int bias
= (svga_render
->vbuf_offset
- svga_render
->vdecl_offset
) / svga_render
->vertex_size
;
298 size_t size
= 2 * nr_indices
;
299 /* instancing will already have been resolved at this point by 'draw' */
300 const unsigned start_instance
= 0;
301 const unsigned instance_count
= 1;
303 assert(( svga_render
->vbuf_offset
- svga_render
->vdecl_offset
) % svga_render
->vertex_size
== 0);
305 if (svga_render
->ibuf_size
< svga_render
->ibuf_offset
+ size
)
306 pipe_resource_reference(&svga_render
->ibuf
, NULL
);
308 if (!svga_render
->ibuf
) {
309 svga_render
->ibuf_size
= MAX2(size
, svga_render
->ibuf_alloc_size
);
310 svga_render
->ibuf
= pipe_buffer_create(screen
,
311 PIPE_BIND_INDEX_BUFFER
,
313 svga_render
->ibuf_size
);
314 svga_render
->ibuf_offset
= 0;
317 pipe_buffer_write_nooverlap(&svga
->pipe
, svga_render
->ibuf
,
318 svga_render
->ibuf_offset
, 2 * nr_indices
, indices
);
320 /* off to hardware */
321 svga_vbuf_submit_state(svga_render
);
323 /* Need to call update_state() again as the draw module may have
324 * altered some of our state behind our backs. Testcase:
327 svga_update_state_retry( svga
, SVGA_STATE_HW_DRAW
);
329 ret
= svga_hwtnl_draw_range_elements(svga
->hwtnl
,
333 svga_render
->min_index
,
334 svga_render
->max_index
,
336 svga_render
->ibuf_offset
/ 2, nr_indices
,
337 start_instance
, instance_count
);
339 svga_context_flush(svga
, NULL
);
340 ret
= svga_hwtnl_draw_range_elements(svga
->hwtnl
,
344 svga_render
->min_index
,
345 svga_render
->max_index
,
347 svga_render
->ibuf_offset
/ 2,
349 start_instance
, instance_count
);
350 svga
->swtnl
.new_vbuf
= TRUE
;
351 assert(ret
== PIPE_OK
);
354 svga_render
->ibuf_offset
+= size
;
359 svga_vbuf_render_release_vertices( struct vbuf_render
*render
)
366 svga_vbuf_render_destroy( struct vbuf_render
*render
)
368 struct svga_vbuf_render
*svga_render
= svga_vbuf_render(render
);
370 pipe_resource_reference(&svga_render
->vbuf
, NULL
);
371 pipe_resource_reference(&svga_render
->ibuf
, NULL
);
377 * Create a new primitive render.
380 svga_vbuf_render_create( struct svga_context
*svga
)
382 struct svga_vbuf_render
*svga_render
= CALLOC_STRUCT(svga_vbuf_render
);
384 svga_render
->svga
= svga
;
385 svga_render
->ibuf_size
= 0;
386 svga_render
->vbuf_size
= 0;
387 svga_render
->ibuf_alloc_size
= 4*1024;
388 svga_render
->vbuf_alloc_size
= 64*1024;
389 svga_render
->layout_id
= SVGA3D_INVALID_ID
;
390 svga_render
->base
.max_vertex_buffer_bytes
= 64*1024/10;
391 svga_render
->base
.max_indices
= 65536;
392 svga_render
->base
.get_vertex_info
= svga_vbuf_render_get_vertex_info
;
393 svga_render
->base
.allocate_vertices
= svga_vbuf_render_allocate_vertices
;
394 svga_render
->base
.map_vertices
= svga_vbuf_render_map_vertices
;
395 svga_render
->base
.unmap_vertices
= svga_vbuf_render_unmap_vertices
;
396 svga_render
->base
.set_primitive
= svga_vbuf_render_set_primitive
;
397 svga_render
->base
.draw_elements
= svga_vbuf_render_draw_elements
;
398 svga_render
->base
.draw_arrays
= svga_vbuf_render_draw_arrays
;
399 svga_render
->base
.release_vertices
= svga_vbuf_render_release_vertices
;
400 svga_render
->base
.destroy
= svga_vbuf_render_destroy
;
402 return &svga_render
->base
;