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 **************************************************************************/
30 * Build post-transformation, post-clipping vertex buffers and element
31 * lists by hooking into the end of the primitive pipeline and
32 * manipulating the vertex_id field in the vertex headers.
34 * XXX: work in progress
36 * \author José Fonseca <jrfonseca@tungstengraphics.com>
37 * \author Keith Whitwell <keith@tungstengraphics.com>
41 #include "util/u_debug.h"
42 #include "pipe/p_inlines.h"
44 #include "nv10_context.h"
45 #include "nv10_state.h"
47 #include "draw/draw_vbuf.h"
50 * Primitive renderer for nv10.
52 struct nv10_vbuf_render
{
53 struct vbuf_render base
;
55 struct nv10_context
*nv10
;
58 struct pipe_buffer
* buffer
;
60 /** Vertex size in bytes */
63 /** Hardware primitive */
68 void nv10_vtxbuf_bind( struct nv10_context
* nv10
)
71 for(i
= 0; i
< 8; i
++) {
72 BEGIN_RING(celsius
, NV10TCL_VTXBUF_ADDRESS(i
), 1);
73 OUT_RING(0/*nv10->vtxbuf*/);
74 BEGIN_RING(celsius
, NV10TCL_VTXFMT(i
), 1);
80 * Basically a cast wrapper.
82 static INLINE
struct nv10_vbuf_render
*
83 nv10_vbuf_render( struct vbuf_render
*render
)
86 return (struct nv10_vbuf_render
*)render
;
90 static const struct vertex_info
*
91 nv10_vbuf_render_get_vertex_info( struct vbuf_render
*render
)
93 struct nv10_vbuf_render
*nv10_render
= nv10_vbuf_render(render
);
94 struct nv10_context
*nv10
= nv10_render
->nv10
;
96 nv10_emit_hw_state(nv10
);
98 return &nv10
->vertex_info
;
102 nv10_vbuf_render_allocate_vertices( struct vbuf_render
*render
,
106 struct nv10_vbuf_render
*nv10_render
= nv10_vbuf_render(render
);
107 struct nv10_context
*nv10
= nv10_render
->nv10
;
108 struct pipe_screen
*screen
= nv10
->pipe
.screen
;
109 size_t size
= (size_t)vertex_size
* (size_t)nr_vertices
;
111 assert(!nv10_render
->buffer
);
112 nv10_render
->buffer
= screen
->buffer_create(screen
, 64, PIPE_BUFFER_USAGE_VERTEX
, size
);
114 nv10
->dirty
|= NV10_NEW_VTXARRAYS
;
116 if (nv10_render
->buffer
)
122 nv10_vbuf_render_map_vertices( struct vbuf_render
*render
)
124 struct nv10_vbuf_render
*nv10_render
= nv10_vbuf_render(render
);
125 struct nv10_context
*nv10
= nv10_render
->nv10
;
126 struct pipe_screen
*pscreen
= nv10
->pipe
.screen
;
128 return pipe_buffer_map(pscreen
, nv10_render
->buffer
,
129 PIPE_BUFFER_USAGE_CPU_WRITE
);
133 nv10_vbuf_render_unmap_vertices( struct vbuf_render
*render
,
137 struct nv10_vbuf_render
*nv10_render
= nv10_vbuf_render(render
);
138 struct nv10_context
*nv10
= nv10_render
->nv10
;
139 struct pipe_screen
*pscreen
= nv10
->pipe
.screen
;
141 assert(!nv10_render
->buffer
);
142 pipe_buffer_unmap(pscreen
, nv10_render
->buffer
);
146 nv10_vbuf_render_set_primitive( struct vbuf_render
*render
,
149 struct nv10_vbuf_render
*nv10_render
= nv10_vbuf_render(render
);
150 unsigned hwp
= nvgl_primitive(prim
);
154 nv10_render
->hwprim
= hwp
;
160 nv10_vbuf_render_draw( struct vbuf_render
*render
,
161 const ushort
*indices
,
164 struct nv10_vbuf_render
*nv10_render
= nv10_vbuf_render(render
);
165 struct nv10_context
*nv10
= nv10_render
->nv10
;
168 nv10_emit_hw_state(nv10
);
170 BEGIN_RING(celsius
, NV10TCL_VERTEX_ARRAY_OFFSET_POS
, 1);
171 OUT_RELOCl(nv10_render
->buffer
, 0, NOUVEAU_BO_VRAM
| NOUVEAU_BO_GART
| NOUVEAU_BO_RD
);
173 BEGIN_RING(celsius
, NV10TCL_VERTEX_BUFFER_BEGIN_END
, 1);
174 OUT_RING(nv10_render
->hwprim
);
176 if (nr_indices
& 1) {
177 BEGIN_RING(celsius
, NV10TCL_VB_ELEMENT_U32
, 1);
178 OUT_RING (indices
[0]);
179 indices
++; nr_indices
--;
183 // XXX too big/small ? check the size
184 push
= MIN2(nr_indices
, 1200 * 2);
186 BEGIN_RING_NI(celsius
, NV10TCL_VB_ELEMENT_U16
, push
>> 1);
187 for (i
= 0; i
< push
; i
+=2)
188 OUT_RING((indices
[i
+1] << 16) | indices
[i
]);
194 BEGIN_RING(celsius
, NV10TCL_VERTEX_BUFFER_BEGIN_END
, 1);
200 nv10_vbuf_render_release_vertices( struct vbuf_render
*render
)
202 struct nv10_vbuf_render
*nv10_render
= nv10_vbuf_render(render
);
204 assert(nv10_render
->buffer
);
205 pipe_buffer_reference(&nv10_render
->buffer
, NULL
);
210 nv10_vbuf_render_destroy( struct vbuf_render
*render
)
212 struct nv10_vbuf_render
*nv10_render
= nv10_vbuf_render(render
);
218 * Create a new primitive render.
220 static struct vbuf_render
*
221 nv10_vbuf_render_create( struct nv10_context
*nv10
)
223 struct nv10_vbuf_render
*nv10_render
= CALLOC_STRUCT(nv10_vbuf_render
);
225 nv10_render
->nv10
= nv10
;
227 nv10_render
->base
.max_vertex_buffer_bytes
= 16*1024;
228 nv10_render
->base
.max_indices
= 1024;
229 nv10_render
->base
.get_vertex_info
= nv10_vbuf_render_get_vertex_info
;
230 nv10_render
->base
.allocate_vertices
= nv10_vbuf_render_allocate_vertices
;
231 nv10_render
->base
.map_vertices
= nv10_vbuf_render_map_vertices
;
232 nv10_render
->base
.unmap_vertices
= nv10_vbuf_render_unmap_vertices
;
233 nv10_render
->base
.set_primitive
= nv10_vbuf_render_set_primitive
;
234 nv10_render
->base
.draw
= nv10_vbuf_render_draw
;
235 nv10_render
->base
.release_vertices
= nv10_vbuf_render_release_vertices
;
236 nv10_render
->base
.destroy
= nv10_vbuf_render_destroy
;
238 return &nv10_render
->base
;
243 * Create a new primitive vbuf/render stage.
245 struct draw_stage
*nv10_draw_vbuf_stage( struct nv10_context
*nv10
)
247 struct vbuf_render
*render
;
248 struct draw_stage
*stage
;
250 render
= nv10_vbuf_render_create(nv10
);
254 stage
= draw_vbuf_stage( nv10
->draw
, render
);
256 render
->destroy(render
);