1 /**************************************************************************
3 * Copyright 2008 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 **************************************************************************/
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
;
51 draw_pt_emit_prepare(struct pt_emit
*emit
,
53 unsigned *max_vertices
)
55 struct draw_context
*draw
= emit
->draw
;
56 const struct vertex_info
*vinfo
;
58 struct translate_key hw_key
;
61 /* XXX: need to flush to get prim_vbuf.c to release its allocation??
63 draw_do_flush( draw
, DRAW_FLUSH_BACKEND
);
65 /* XXX: may need to defensively reset this later on as clipping can
66 * clobber this state in the render backend.
70 draw
->render
->set_primitive(draw
->render
, emit
->prim
);
72 /* Must do this after set_primitive() above:
74 emit
->vinfo
= vinfo
= draw
->render
->get_vertex_info(draw
->render
);
76 /* Translate from pipeline vertices to hw vertices.
79 for (i
= 0; i
< vinfo
->num_attribs
; i
++) {
81 unsigned src_buffer
= 0;
82 unsigned output_format
;
83 unsigned src_offset
= (vinfo
->attrib
[i
].src_index
* 4 * sizeof(float) );
85 output_format
= draw_translate_vinfo_format(vinfo
->attrib
[i
].emit
);
86 emit_sz
= draw_translate_vinfo_size(vinfo
->attrib
[i
].emit
);
88 /* doesn't handle EMIT_OMIT */
91 if (vinfo
->attrib
[i
].emit
== EMIT_1F_PSIZE
) {
96 hw_key
.element
[i
].type
= TRANSLATE_ELEMENT_NORMAL
;
97 hw_key
.element
[i
].input_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
98 hw_key
.element
[i
].input_buffer
= src_buffer
;
99 hw_key
.element
[i
].input_offset
= src_offset
;
100 hw_key
.element
[i
].instance_divisor
= 0;
101 hw_key
.element
[i
].output_format
= output_format
;
102 hw_key
.element
[i
].output_offset
= dst_offset
;
104 dst_offset
+= emit_sz
;
107 hw_key
.nr_elements
= vinfo
->num_attribs
;
108 hw_key
.output_stride
= vinfo
->size
* 4;
110 if (!emit
->translate
||
111 translate_key_compare(&emit
->translate
->key
, &hw_key
) != 0) {
112 translate_key_sanitize(&hw_key
);
113 emit
->translate
= translate_cache_find(emit
->cache
, &hw_key
);
116 *max_vertices
= (draw
->render
->max_vertex_buffer_bytes
/
122 draw_pt_emit(struct pt_emit
*emit
,
123 const struct draw_vertex_info
*vert_info
,
124 const struct draw_prim_info
*prim_info
)
126 const float (*vertex_data
)[4] = (const float (*)[4])vert_info
->verts
->data
;
127 unsigned vertex_count
= vert_info
->count
;
128 unsigned stride
= vert_info
->stride
;
129 const ushort
*elts
= prim_info
->elts
;
130 struct draw_context
*draw
= emit
->draw
;
131 struct translate
*translate
= emit
->translate
;
132 struct vbuf_render
*render
= draw
->render
;
136 /* XXX: need to flush to get prim_vbuf.c to release its allocation??
138 draw_do_flush( draw
, DRAW_FLUSH_BACKEND
);
140 if (vertex_count
== 0)
143 /* XXX: and work out some way to coordinate the render primitive
144 * between vbuf.c and here...
146 draw
->render
->set_primitive(draw
->render
, emit
->prim
);
148 render
->allocate_vertices(render
,
149 (ushort
)translate
->key
.output_stride
,
150 (ushort
)vertex_count
);
152 hw_verts
= render
->map_vertices( render
);
154 debug_warn_once("map of vertex buffer failed (out of memory?)");
158 translate
->set_buffer(translate
,
164 translate
->set_buffer(translate
,
166 &draw
->rasterizer
->point_size
,
170 /* fetch/translate vertex attribs to fill hw_verts[] */
171 translate
->run(translate
,
177 render
->unmap_vertices(render
, 0, vertex_count
- 1);
180 i
< prim_info
->primitive_count
;
181 start
+= prim_info
->primitive_lengths
[i
], i
++)
183 if (draw
->collect_statistics
) {
184 draw
->statistics
.c_invocations
+=
185 u_decomposed_prims_for_vertices(prim_info
->prim
,
186 prim_info
->primitive_lengths
[i
]);
189 render
->draw_elements(render
,
191 prim_info
->primitive_lengths
[i
]);
194 render
->release_vertices(render
);
199 draw_pt_emit_linear(struct pt_emit
*emit
,
200 const struct draw_vertex_info
*vert_info
,
201 const struct draw_prim_info
*prim_info
)
203 const float (*vertex_data
)[4] = (const float (*)[4])vert_info
->verts
->data
;
204 unsigned stride
= vert_info
->stride
;
205 unsigned count
= vert_info
->count
;
206 struct draw_context
*draw
= emit
->draw
;
207 struct translate
*translate
= emit
->translate
;
208 struct vbuf_render
*render
= draw
->render
;
213 debug_printf("Linear emit\n");
215 /* XXX: need to flush to get prim_vbuf.c to release its allocation??
217 draw_do_flush( draw
, DRAW_FLUSH_BACKEND
);
219 /* XXX: and work out some way to coordinate the render primitive
220 * between vbuf.c and here...
222 draw
->render
->set_primitive(draw
->render
, emit
->prim
);
224 if (!render
->allocate_vertices(render
,
225 (ushort
)translate
->key
.output_stride
,
229 hw_verts
= render
->map_vertices( render
);
233 translate
->set_buffer(translate
, 0,
234 vertex_data
, stride
, count
- 1);
236 translate
->set_buffer(translate
, 1,
237 &draw
->rasterizer
->point_size
,
240 translate
->run(translate
,
248 for (i
= 0; i
< count
; i
++) {
249 debug_printf("\n\n%s vertex %d:\n", __FUNCTION__
, i
);
250 draw_dump_emitted_vertex( emit
->vinfo
,
251 (const uint8_t *)hw_verts
+
252 translate
->key
.output_stride
* i
);
256 render
->unmap_vertices( render
, 0, count
- 1 );
259 i
< prim_info
->primitive_count
;
260 start
+= prim_info
->primitive_lengths
[i
], i
++)
262 if (draw
->collect_statistics
) {
263 draw
->statistics
.c_invocations
+=
264 u_decomposed_prims_for_vertices(prim_info
->prim
,
265 prim_info
->primitive_lengths
[i
]);
268 render
->draw_arrays(render
,
270 prim_info
->primitive_lengths
[i
]);
273 render
->release_vertices(render
);
278 debug_warn_once("allocate or map of vertex buffer failed (out of memory?)");
284 draw_pt_emit_create(struct draw_context
*draw
)
286 struct pt_emit
*emit
= CALLOC_STRUCT(pt_emit
);
291 emit
->cache
= translate_cache_create();
302 draw_pt_emit_destroy(struct pt_emit
*emit
)
305 translate_cache_destroy(emit
->cache
);