1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
5 * Copyright 2010 VMware, Inc. All rights reserved.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
29 #ifndef SP_TEX_SAMPLE_H
30 #define SP_TEX_SAMPLE_H
33 #include "tgsi/tgsi_exec.h"
36 struct sp_sampler_view
;
39 typedef void (*wrap_nearest_func
)(float s
,
43 typedef void (*wrap_linear_func
)(float s
,
49 typedef float (*compute_lambda_func
)(const struct sp_sampler_view
*sp_sview
,
50 const float s
[TGSI_QUAD_SIZE
],
51 const float t
[TGSI_QUAD_SIZE
],
52 const float p
[TGSI_QUAD_SIZE
]);
54 typedef void (*img_filter_func
)(struct sp_sampler_view
*sp_sview
,
55 struct sp_sampler
*sp_samp
,
63 typedef void (*mip_filter_func
)(struct sp_sampler_view
*sp_sview
,
64 struct sp_sampler
*sp_samp
,
65 img_filter_func min_filter
,
66 img_filter_func mag_filter
,
67 const float s
[TGSI_QUAD_SIZE
],
68 const float t
[TGSI_QUAD_SIZE
],
69 const float p
[TGSI_QUAD_SIZE
],
70 const float c0
[TGSI_QUAD_SIZE
],
71 const float lod
[TGSI_QUAD_SIZE
],
72 enum tgsi_sampler_control control
,
73 float rgba
[TGSI_NUM_CHANNELS
][TGSI_QUAD_SIZE
]);
76 typedef void (*filter_func
)(struct sp_sampler_view
*sp_sview
,
77 struct sp_sampler
*sp_samp
,
78 const float s
[TGSI_QUAD_SIZE
],
79 const float t
[TGSI_QUAD_SIZE
],
80 const float p
[TGSI_QUAD_SIZE
],
81 const float c0
[TGSI_QUAD_SIZE
],
82 const float lod
[TGSI_QUAD_SIZE
],
83 enum tgsi_sampler_control control
,
84 float rgba
[TGSI_NUM_CHANNELS
][TGSI_QUAD_SIZE
]);
87 typedef void (*fetch_func
)(struct sp_sampler_view
*sp_sview
,
88 const int i
[TGSI_QUAD_SIZE
],
89 const int j
[TGSI_QUAD_SIZE
], const int k
[TGSI_QUAD_SIZE
],
90 const int lod
[TGSI_QUAD_SIZE
], const int8_t offset
[3],
91 float rgba
[TGSI_NUM_CHANNELS
][TGSI_QUAD_SIZE
]);
94 struct sp_sampler_view
96 struct pipe_sampler_view base
;
98 /* For sp_get_samples_2d_linear_POT:
103 boolean need_swizzle
;
106 filter_func get_samples
;
108 /* this is just abusing the sampler_view object as local storage */
109 unsigned faces
[TGSI_QUAD_SIZE
];
111 /* these are different per shader type */
112 struct softpipe_tex_tile_cache
*cache
;
113 compute_lambda_func compute_lambda
;
119 struct pipe_sampler_state base
;
121 boolean min_mag_equal_repeat_linear
;
122 boolean min_mag_equal
;
123 unsigned min_img_filter
;
125 wrap_nearest_func nearest_texcoord_s
;
126 wrap_nearest_func nearest_texcoord_t
;
127 wrap_nearest_func nearest_texcoord_p
;
129 wrap_linear_func linear_texcoord_s
;
130 wrap_linear_func linear_texcoord_t
;
131 wrap_linear_func linear_texcoord_p
;
133 mip_filter_func mip_filter
;
138 * Subclass of tgsi_sampler
140 struct sp_tgsi_sampler
142 struct tgsi_sampler base
; /**< base class */
143 struct sp_sampler
*sp_sampler
[PIPE_MAX_SAMPLERS
];
144 struct sp_sampler_view sp_sview
[PIPE_MAX_SHADER_SAMPLER_VIEWS
];
149 softpipe_get_lambda_func(const struct pipe_sampler_view
*view
, unsigned shader
);
153 softpipe_create_sampler_state(struct pipe_context
*pipe
,
154 const struct pipe_sampler_state
*sampler
);
157 struct pipe_sampler_view
*
158 softpipe_create_sampler_view(struct pipe_context
*pipe
,
159 struct pipe_resource
*resource
,
160 const struct pipe_sampler_view
*templ
);
163 struct sp_tgsi_sampler
*
164 sp_create_tgsi_sampler(void);
167 #endif /* SP_TEX_SAMPLE_H */