1 /**************************************************************************
3 * Copyright 2008 VMware, Inc.
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 VMWARE 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 "util/u_memory.h"
29 #include "draw/draw_context.h"
30 #include "draw/draw_private.h"
31 #include "draw/draw_vbuf.h"
32 #include "draw/draw_vertex.h"
33 #include "draw/draw_pt.h"
34 #include "translate/translate.h"
35 #include "translate/translate_cache.h"
36 #include "util/u_prim.h"
39 struct draw_context
*draw
;
41 struct translate
*translate
;
43 struct translate_cache
*cache
;
46 const struct vertex_info
*vinfo
;
54 draw_pt_emit_prepare(struct pt_emit
*emit
,
56 unsigned *max_vertices
)
58 struct draw_context
*draw
= emit
->draw
;
59 const struct vertex_info
*vinfo
;
61 struct translate_key hw_key
;
64 /* XXX: need to flush to get prim_vbuf.c to release its allocation??
66 draw_do_flush(draw
, DRAW_FLUSH_BACKEND
);
68 /* XXX: may need to defensively reset this later on as clipping can
69 * clobber this state in the render backend.
73 draw
->render
->set_primitive(draw
->render
, emit
->prim
);
75 /* Must do this after set_primitive() above:
77 emit
->vinfo
= vinfo
= draw
->render
->get_vertex_info(draw
->render
);
79 /* Translate from pipeline vertices to hw vertices.
82 for (i
= 0; i
< vinfo
->num_attribs
; i
++) {
84 unsigned src_buffer
= 0;
85 unsigned output_format
;
86 unsigned src_offset
= vinfo
->attrib
[i
].src_index
* 4 * sizeof(float);
88 output_format
= draw_translate_vinfo_format(vinfo
->attrib
[i
].emit
);
89 emit_sz
= draw_translate_vinfo_size(vinfo
->attrib
[i
].emit
);
91 /* doesn't handle EMIT_OMIT */
94 if (vinfo
->attrib
[i
].emit
== EMIT_1F_PSIZE
) {
98 else if (vinfo
->attrib
[i
].src_index
== DRAW_ATTR_NONEXIST
) {
99 /* elements which don't exist will get assigned zeros */
104 hw_key
.element
[i
].type
= TRANSLATE_ELEMENT_NORMAL
;
105 hw_key
.element
[i
].input_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
106 hw_key
.element
[i
].input_buffer
= src_buffer
;
107 hw_key
.element
[i
].input_offset
= src_offset
;
108 hw_key
.element
[i
].instance_divisor
= 0;
109 hw_key
.element
[i
].output_format
= output_format
;
110 hw_key
.element
[i
].output_offset
= dst_offset
;
112 dst_offset
+= emit_sz
;
115 hw_key
.nr_elements
= vinfo
->num_attribs
;
116 hw_key
.output_stride
= vinfo
->size
* 4;
118 if (!emit
->translate
||
119 translate_key_compare(&emit
->translate
->key
, &hw_key
) != 0) {
120 translate_key_sanitize(&hw_key
);
121 emit
->translate
= translate_cache_find(emit
->cache
, &hw_key
);
123 emit
->translate
->set_buffer(emit
->translate
, 2, &emit
->zero4
[0], 0, ~0);
129 *max_vertices
= (draw
->render
->max_vertex_buffer_bytes
/
135 draw_pt_emit(struct pt_emit
*emit
,
136 const struct draw_vertex_info
*vert_info
,
137 const struct draw_prim_info
*prim_info
)
139 const float (*vertex_data
)[4] = (const float (*)[4])vert_info
->verts
->data
;
140 unsigned vertex_count
= vert_info
->count
;
141 unsigned stride
= vert_info
->stride
;
142 const ushort
*elts
= prim_info
->elts
;
143 struct draw_context
*draw
= emit
->draw
;
144 struct translate
*translate
= emit
->translate
;
145 struct vbuf_render
*render
= draw
->render
;
149 /* XXX: need to flush to get prim_vbuf.c to release its allocation??
151 draw_do_flush(draw
, DRAW_FLUSH_BACKEND
);
153 if (vertex_count
== 0)
156 /* XXX: and work out some way to coordinate the render primitive
157 * between vbuf.c and here...
159 render
->set_primitive(draw
->render
, prim_info
->prim
);
161 render
->allocate_vertices(render
,
162 (ushort
)translate
->key
.output_stride
,
163 (ushort
)vertex_count
);
165 hw_verts
= render
->map_vertices(render
);
167 debug_warn_once("map of vertex buffer failed (out of memory?)");
171 translate
->set_buffer(translate
,
177 translate
->set_buffer(translate
,
179 &draw
->rasterizer
->point_size
,
183 /* fetch/translate vertex attribs to fill hw_verts[] */
184 translate
->run(translate
,
191 render
->unmap_vertices(render
, 0, vertex_count
- 1);
194 i
< prim_info
->primitive_count
;
195 start
+= prim_info
->primitive_lengths
[i
], i
++)
197 render
->draw_elements(render
,
199 prim_info
->primitive_lengths
[i
]);
202 render
->release_vertices(render
);
207 draw_pt_emit_linear(struct pt_emit
*emit
,
208 const struct draw_vertex_info
*vert_info
,
209 const struct draw_prim_info
*prim_info
)
211 const float (*vertex_data
)[4] = (const float (*)[4])vert_info
->verts
->data
;
212 unsigned stride
= vert_info
->stride
;
213 unsigned count
= vert_info
->count
;
214 struct draw_context
*draw
= emit
->draw
;
215 struct translate
*translate
= emit
->translate
;
216 struct vbuf_render
*render
= draw
->render
;
221 debug_printf("Linear emit\n");
223 /* XXX: need to flush to get prim_vbuf.c to release its allocation??
225 draw_do_flush(draw
, DRAW_FLUSH_BACKEND
);
227 /* XXX: and work out some way to coordinate the render primitive
228 * between vbuf.c and here...
230 render
->set_primitive(draw
->render
, prim_info
->prim
);
232 if (!render
->allocate_vertices(render
,
233 (ushort
)translate
->key
.output_stride
,
237 hw_verts
= render
->map_vertices(render
);
241 translate
->set_buffer(translate
, 0,
242 vertex_data
, stride
, count
- 1);
244 translate
->set_buffer(translate
, 1,
245 &draw
->rasterizer
->point_size
,
248 translate
->run(translate
,
257 for (i
= 0; i
< count
; i
++) {
258 debug_printf("\n\n%s vertex %d:\n", __FUNCTION__
, i
);
259 draw_dump_emitted_vertex(emit
->vinfo
,
260 (const uint8_t *)hw_verts
+
261 translate
->key
.output_stride
* i
);
265 render
->unmap_vertices(render
, 0, count
- 1);
268 i
< prim_info
->primitive_count
;
269 start
+= prim_info
->primitive_lengths
[i
], i
++)
271 render
->draw_arrays(render
,
273 prim_info
->primitive_lengths
[i
]);
276 render
->release_vertices(render
);
281 debug_warn_once("allocate or map of vertex buffer failed (out of memory?)");
287 draw_pt_emit_create(struct draw_context
*draw
)
289 struct pt_emit
*emit
= CALLOC_STRUCT(pt_emit
);
294 emit
->cache
= translate_cache_create();
300 emit
->zero4
[0] = emit
->zero4
[1] = emit
->zero4
[2] = emit
->zero4
[3] = 0.0f
;
307 draw_pt_emit_destroy(struct pt_emit
*emit
)
310 translate_cache_destroy(emit
->cache
);