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 "util/u_math.h"
30 #include "util/format/u_format.h"
31 #include "draw/draw_context.h"
32 #include "draw/draw_private.h"
33 #include "draw/draw_pt.h"
34 #include "translate/translate.h"
35 #include "translate/translate_cache.h"
39 struct draw_context
*draw
;
41 struct translate
*translate
;
45 struct translate_cache
*cache
;
50 * Perform the fetch from API vertex elements & vertex buffers, to a
51 * contiguous set of float[4] attributes as required for the
52 * vertex_shader->run_linear() method.
54 * This is used in all cases except pure passthrough
55 * (draw_pt_fetch_emit.c) which has its own version to translate
56 * directly to hw vertices.
60 draw_pt_fetch_prepare(struct pt_fetch
*fetch
,
61 unsigned vs_input_count
,
63 unsigned instance_id_index
)
65 struct draw_context
*draw
= fetch
->draw
;
67 unsigned i
, nr
= 0, ei
= 0;
68 unsigned dst_offset
= 0;
69 unsigned num_extra_inputs
= 0;
70 struct translate_key key
;
72 fetch
->vertex_size
= vertex_size
;
74 /* Leave the clipmask/edgeflags/pad/vertex_id,
75 * clip[] and whatever else in the header untouched.
77 dst_offset
= offsetof(struct vertex_header
, data
);
79 if (instance_id_index
!= ~0) {
83 assert(draw
->pt
.nr_vertex_elements
+ num_extra_inputs
>= vs_input_count
);
85 nr_inputs
= MIN2(vs_input_count
, draw
->pt
.nr_vertex_elements
+ num_extra_inputs
);
87 for (i
= 0; i
< nr_inputs
; i
++) {
88 if (i
== instance_id_index
) {
89 key
.element
[nr
].type
= TRANSLATE_ELEMENT_INSTANCE_ID
;
90 key
.element
[nr
].input_format
= PIPE_FORMAT_R32_USCALED
;
91 key
.element
[nr
].output_format
= PIPE_FORMAT_R32_USCALED
;
92 key
.element
[nr
].output_offset
= dst_offset
;
94 dst_offset
+= sizeof(uint
);
95 } else if (util_format_is_pure_sint(draw
->pt
.vertex_element
[i
].src_format
)) {
96 key
.element
[nr
].type
= TRANSLATE_ELEMENT_NORMAL
;
97 key
.element
[nr
].input_format
= draw
->pt
.vertex_element
[ei
].src_format
;
98 key
.element
[nr
].input_buffer
= draw
->pt
.vertex_element
[ei
].vertex_buffer_index
;
99 key
.element
[nr
].input_offset
= draw
->pt
.vertex_element
[ei
].src_offset
;
100 key
.element
[nr
].instance_divisor
= draw
->pt
.vertex_element
[ei
].instance_divisor
;
101 key
.element
[nr
].output_format
= PIPE_FORMAT_R32G32B32A32_SINT
;
102 key
.element
[nr
].output_offset
= dst_offset
;
105 dst_offset
+= 4 * sizeof(int);
106 } else if (util_format_is_pure_uint(draw
->pt
.vertex_element
[i
].src_format
)) {
107 key
.element
[nr
].type
= TRANSLATE_ELEMENT_NORMAL
;
108 key
.element
[nr
].input_format
= draw
->pt
.vertex_element
[ei
].src_format
;
109 key
.element
[nr
].input_buffer
= draw
->pt
.vertex_element
[ei
].vertex_buffer_index
;
110 key
.element
[nr
].input_offset
= draw
->pt
.vertex_element
[ei
].src_offset
;
111 key
.element
[nr
].instance_divisor
= draw
->pt
.vertex_element
[ei
].instance_divisor
;
112 key
.element
[nr
].output_format
= PIPE_FORMAT_R32G32B32A32_UINT
;
113 key
.element
[nr
].output_offset
= dst_offset
;
116 dst_offset
+= 4 * sizeof(unsigned);
118 key
.element
[nr
].type
= TRANSLATE_ELEMENT_NORMAL
;
119 key
.element
[nr
].input_format
= draw
->pt
.vertex_element
[ei
].src_format
;
120 key
.element
[nr
].input_buffer
= draw
->pt
.vertex_element
[ei
].vertex_buffer_index
;
121 key
.element
[nr
].input_offset
= draw
->pt
.vertex_element
[ei
].src_offset
;
122 key
.element
[nr
].instance_divisor
= draw
->pt
.vertex_element
[ei
].instance_divisor
;
123 key
.element
[nr
].output_format
= PIPE_FORMAT_R32G32B32A32_FLOAT
;
124 key
.element
[nr
].output_offset
= dst_offset
;
127 dst_offset
+= 4 * sizeof(float);
133 assert(dst_offset
<= vertex_size
);
135 key
.nr_elements
= nr
;
136 key
.output_stride
= vertex_size
;
138 if (!fetch
->translate
||
139 translate_key_compare(&fetch
->translate
->key
, &key
) != 0)
141 translate_key_sanitize(&key
);
142 fetch
->translate
= translate_cache_find(fetch
->cache
, &key
);
148 draw_pt_fetch_run(struct pt_fetch
*fetch
,
149 const unsigned *elts
,
153 struct draw_context
*draw
= fetch
->draw
;
154 struct translate
*translate
= fetch
->translate
;
157 for (i
= 0; i
< draw
->pt
.nr_vertex_buffers
; i
++) {
158 translate
->set_buffer(translate
,
160 ((char *)draw
->pt
.user
.vbuffer
[i
].map
+
161 draw
->pt
.vertex_buffer
[i
].buffer_offset
),
162 draw
->pt
.vertex_buffer
[i
].stride
,
166 translate
->run_elts( translate
,
169 draw
->start_instance
,
176 draw_pt_fetch_run_linear(struct pt_fetch
*fetch
,
181 struct draw_context
*draw
= fetch
->draw
;
182 struct translate
*translate
= fetch
->translate
;
185 for (i
= 0; i
< draw
->pt
.nr_vertex_buffers
; i
++) {
186 translate
->set_buffer(translate
,
188 ((char *)draw
->pt
.user
.vbuffer
[i
].map
+
189 draw
->pt
.vertex_buffer
[i
].buffer_offset
),
190 draw
->pt
.vertex_buffer
[i
].stride
,
194 translate
->run( translate
,
197 draw
->start_instance
,
204 draw_pt_fetch_create(struct draw_context
*draw
)
206 struct pt_fetch
*fetch
= CALLOC_STRUCT(pt_fetch
);
211 fetch
->cache
= translate_cache_create();
222 draw_pt_fetch_destroy(struct pt_fetch
*fetch
)
225 translate_cache_destroy(fetch
->cache
);