2 * Copyright 2008 VMware, Inc.
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * on the rights to use, copy, modify, merge, publish, distribute, sub
9 * license, and/or sell copies of the Software, and to permit persons to whom
10 * the Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
19 * VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
22 * USE OR OTHER DEALINGS IN THE SOFTWARE.
27 * Vertex fetch/store/convert code. This functionality is used in two places:
28 * 1. Vertex fetch/convert - to grab vertex data from incoming vertex
29 * arrays and convert to format needed by vertex shaders.
30 * 2. Vertex store/emit - to convert simple float[][4] vertex attributes
31 * (which is the organization used throughout the draw/prim pipeline) to
32 * hardware-specific formats and emit into hardware vertex buffers.
36 * Keith Whitwell <keithw@vmware.com>
43 #include "pipe/p_compiler.h"
44 #include "pipe/p_format.h"
45 #include "pipe/p_state.h"
47 enum translate_element_type
{
48 TRANSLATE_ELEMENT_NORMAL
,
49 TRANSLATE_ELEMENT_INSTANCE_ID
52 struct translate_element
54 enum translate_element_type type
;
55 enum pipe_format input_format
;
56 enum pipe_format output_format
;
57 unsigned input_buffer
:8;
58 unsigned input_offset
:24;
59 unsigned instance_divisor
;
60 unsigned output_offset
;
64 struct translate_key
{
65 unsigned output_stride
;
67 struct translate_element element
[PIPE_MAX_ATTRIBS
+ 1];
74 typedef void (PIPE_CDECL
*run_elts_func
)(struct translate
*,
77 unsigned start_instance
,
81 typedef void (PIPE_CDECL
*run_elts16_func
)(struct translate
*,
84 unsigned start_instance
,
88 typedef void (PIPE_CDECL
*run_elts8_func
)(struct translate
*,
91 unsigned start_instance
,
95 typedef void (PIPE_CDECL
*run_func
)(struct translate
*,
98 unsigned start_instance
,
100 void *output_buffer
);
103 struct translate_key key
;
105 void (*release
)( struct translate
* );
107 void (*set_buffer
)( struct translate
*,
111 unsigned max_index
);
113 run_elts_func run_elts
;
114 run_elts16_func run_elts16
;
115 run_elts8_func run_elts8
;
121 struct translate
*translate_create( const struct translate_key
*key
);
123 boolean
translate_is_output_format_supported(enum pipe_format format
);
125 static INLINE
int translate_keysize( const struct translate_key
*key
)
127 return 2 * sizeof(int) + key
->nr_elements
* sizeof(struct translate_element
);
130 static INLINE
int translate_key_compare( const struct translate_key
*a
,
131 const struct translate_key
*b
)
133 int keysize_a
= translate_keysize(a
);
134 int keysize_b
= translate_keysize(b
);
136 if (keysize_a
!= keysize_b
) {
137 return keysize_a
- keysize_b
;
139 return memcmp(a
, b
, keysize_a
);
143 static INLINE
void translate_key_sanitize( struct translate_key
*a
)
145 int keysize
= translate_keysize(a
);
146 char *ptr
= (char *)a
;
147 memset(ptr
+ keysize
, 0, sizeof(*a
) - keysize
);
151 /*******************************************************************************
154 struct translate
*translate_sse2_create( const struct translate_key
*key
);
156 struct translate
*translate_generic_create( const struct translate_key
*key
);
158 boolean
translate_generic_is_output_format_supported(enum pipe_format format
);