2 * Copyright 2008 Tungsten Graphics, 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 * TUNGSTEN GRAPHICS 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@tungstengraphics.com>
43 #include "pipe/p_compiler.h"
44 #include "pipe/p_format.h"
45 #include "pipe/p_state.h"
47 struct translate_element
49 enum pipe_format input_format
;
50 enum pipe_format output_format
;
51 unsigned input_buffer
:8;
52 unsigned input_offset
:24;
53 unsigned instance_divisor
;
54 unsigned output_offset
;
58 struct translate_key
{
59 unsigned output_stride
;
61 struct translate_element element
[PIPE_MAX_ATTRIBS
+ 1];
66 struct translate_key key
;
68 void (*release
)( struct translate
* );
70 void (*set_buffer
)( struct translate
*,
75 void (PIPE_CDECL
*run_elts
)( struct translate
*,
80 void (PIPE_CDECL
*run
)( struct translate
*,
90 struct translate_context
*translate_context_create( void );
91 void translate_context_destroy( struct translate_context
* );
93 struct translate
*translate_lookup_or_create( struct translate_context
*tctx
,
94 const struct translate_key
*key
);
98 struct translate
*translate_create( const struct translate_key
*key
);
100 static INLINE
int translate_keysize( const struct translate_key
*key
)
102 return 2 * sizeof(int) + key
->nr_elements
* sizeof(struct translate_element
);
105 static INLINE
int translate_key_compare( const struct translate_key
*a
,
106 const struct translate_key
*b
)
108 int keysize_a
= translate_keysize(a
);
109 int keysize_b
= translate_keysize(b
);
111 if (keysize_a
!= keysize_b
) {
112 return keysize_a
- keysize_b
;
114 return memcmp(a
, b
, keysize_a
);
118 static INLINE
void translate_key_sanitize( struct translate_key
*a
)
120 int keysize
= translate_keysize(a
);
121 char *ptr
= (char *)a
;
122 memset(ptr
+ keysize
, 0, sizeof(*a
) - keysize
);
126 /*******************************************************************************
129 struct translate
*translate_sse2_create( const struct translate_key
*key
);
131 struct translate
*translate_generic_create( const struct translate_key
*key
);