1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 **********************************************************/
26 #include "pipe/p_inlines.h"
27 #include "pipe/p_defines.h"
28 #include "util/u_math.h"
29 #include "util/u_memory.h"
30 #include "util/u_pack_color.h"
31 #include "tgsi/tgsi_parse.h"
33 #include "svga_context.h"
34 #include "svga_screen_texture.h"
35 #include "svga_state.h"
37 #include "svga_hw_reg.h"
39 #include "svga_debug.h"
41 static INLINE
unsigned
42 translate_wrap_mode(unsigned wrap
)
45 case PIPE_TEX_WRAP_REPEAT
:
46 return SVGA3D_TEX_ADDRESS_WRAP
;
48 case PIPE_TEX_WRAP_CLAMP
:
49 return SVGA3D_TEX_ADDRESS_CLAMP
;
51 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
:
52 /* Unfortunately SVGA3D_TEX_ADDRESS_EDGE not respected by
55 return SVGA3D_TEX_ADDRESS_CLAMP
;
57 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
:
58 return SVGA3D_TEX_ADDRESS_BORDER
;
60 case PIPE_TEX_WRAP_MIRROR_REPEAT
:
61 return SVGA3D_TEX_ADDRESS_MIRROR
;
63 case PIPE_TEX_WRAP_MIRROR_CLAMP
:
64 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE
:
65 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER
:
66 return SVGA3D_TEX_ADDRESS_MIRRORONCE
;
70 return SVGA3D_TEX_ADDRESS_WRAP
;
74 static INLINE
unsigned translate_img_filter( unsigned filter
)
77 case PIPE_TEX_FILTER_NEAREST
: return SVGA3D_TEX_FILTER_NEAREST
;
78 case PIPE_TEX_FILTER_LINEAR
: return SVGA3D_TEX_FILTER_LINEAR
;
79 case PIPE_TEX_FILTER_ANISO
: return SVGA3D_TEX_FILTER_ANISOTROPIC
;
82 return SVGA3D_TEX_FILTER_NEAREST
;
86 static INLINE
unsigned translate_mip_filter( unsigned filter
)
89 case PIPE_TEX_MIPFILTER_NONE
: return SVGA3D_TEX_FILTER_NONE
;
90 case PIPE_TEX_MIPFILTER_NEAREST
: return SVGA3D_TEX_FILTER_NEAREST
;
91 case PIPE_TEX_MIPFILTER_LINEAR
: return SVGA3D_TEX_FILTER_LINEAR
;
94 return SVGA3D_TEX_FILTER_NONE
;
99 svga_create_sampler_state(struct pipe_context
*pipe
,
100 const struct pipe_sampler_state
*sampler
)
102 struct svga_context
*svga
= svga_context(pipe
);
103 struct svga_sampler_state
*cso
= CALLOC_STRUCT( svga_sampler_state
);
106 cso
->mipfilter
= translate_mip_filter(sampler
->min_mip_filter
);
107 cso
->magfilter
= translate_img_filter( sampler
->mag_img_filter
);
108 cso
->minfilter
= translate_img_filter( sampler
->min_img_filter
);
109 cso
->aniso_level
= MAX2( (unsigned) sampler
->max_anisotropy
, 1 );
110 cso
->lod_bias
= sampler
->lod_bias
;
111 cso
->addressu
= translate_wrap_mode(sampler
->wrap_s
);
112 cso
->addressv
= translate_wrap_mode(sampler
->wrap_t
);
113 cso
->addressw
= translate_wrap_mode(sampler
->wrap_r
);
114 cso
->normalized_coords
= sampler
->normalized_coords
;
115 cso
->compare_mode
= sampler
->compare_mode
;
116 cso
->compare_func
= sampler
->compare_func
;
119 ubyte r
= float_to_ubyte(sampler
->border_color
[0]);
120 ubyte g
= float_to_ubyte(sampler
->border_color
[1]);
121 ubyte b
= float_to_ubyte(sampler
->border_color
[2]);
122 ubyte a
= float_to_ubyte(sampler
->border_color
[3]);
124 util_pack_color_ub( r
, g
, b
, a
,
125 PIPE_FORMAT_B8G8R8A8_UNORM
, &uc
);
126 cso
->bordercolor
= uc
.ui
;
129 /* No SVGA3D support for:
130 * - min/max LOD clamping
133 cso
->view_min_lod
= MAX2(sampler
->min_lod
, 0);
134 cso
->view_max_lod
= MAX2(sampler
->max_lod
, 0);
137 if (svga
->debug
.use_min_mipmap
) {
138 if (cso
->view_min_lod
== cso
->view_max_lod
) {
139 cso
->min_lod
= cso
->view_min_lod
;
140 cso
->view_min_lod
= 0;
141 cso
->view_max_lod
= 1000; /* Just a high number */
142 cso
->mipfilter
= SVGA3D_TEX_FILTER_NONE
;
146 SVGA_DBG(DEBUG_VIEWS
, "min %u, view(min %u, max %u) lod, mipfilter %s\n",
147 cso
->min_lod
, cso
->view_min_lod
, cso
->view_max_lod
,
148 cso
->mipfilter
== SVGA3D_TEX_FILTER_NONE
? "SVGA3D_TEX_FILTER_NONE" : "SOMETHING");
153 static void svga_bind_sampler_states(struct pipe_context
*pipe
,
154 unsigned num
, void **sampler
)
156 struct svga_context
*svga
= svga_context(pipe
);
159 assert(num
<= PIPE_MAX_SAMPLERS
);
161 /* Check for no-op */
162 if (num
== svga
->curr
.num_samplers
&&
163 !memcmp(svga
->curr
.sampler
, sampler
, num
* sizeof(void *))) {
164 debug_printf("sampler noop\n");
168 for (i
= 0; i
< num
; i
++)
169 svga
->curr
.sampler
[i
] = sampler
[i
];
171 for (i
= num
; i
< svga
->curr
.num_samplers
; i
++)
172 svga
->curr
.sampler
[i
] = NULL
;
174 svga
->curr
.num_samplers
= num
;
175 svga
->dirty
|= SVGA_NEW_SAMPLER
;
178 static void svga_delete_sampler_state(struct pipe_context
*pipe
,
185 static void svga_set_sampler_textures(struct pipe_context
*pipe
,
187 struct pipe_texture
**texture
)
189 struct svga_context
*svga
= svga_context(pipe
);
190 unsigned flag_1d
= 0;
191 unsigned flag_srgb
= 0;
194 assert(num
<= PIPE_MAX_SAMPLERS
);
196 /* Check for no-op */
197 if (num
== svga
->curr
.num_textures
&&
198 !memcmp(svga
->curr
.texture
, texture
, num
* sizeof(struct pipe_texture
*))) {
199 if (0) debug_printf("texture noop\n");
203 for (i
= 0; i
< num
; i
++) {
204 pipe_texture_reference(&svga
->curr
.texture
[i
],
210 if (texture
[i
]->format
== PIPE_FORMAT_A8R8G8B8_SRGB
)
213 if (texture
[i
]->target
== PIPE_TEXTURE_1D
)
217 for (i
= num
; i
< svga
->curr
.num_textures
; i
++)
218 pipe_texture_reference(&svga
->curr
.texture
[i
],
221 svga
->curr
.num_textures
= num
;
222 svga
->dirty
|= SVGA_NEW_TEXTURE_BINDING
;
224 if (flag_srgb
!= svga
->curr
.tex_flags
.flag_srgb
||
225 flag_1d
!= svga
->curr
.tex_flags
.flag_1d
)
227 svga
->dirty
|= SVGA_NEW_TEXTURE_FLAGS
;
228 svga
->curr
.tex_flags
.flag_1d
= flag_1d
;
229 svga
->curr
.tex_flags
.flag_srgb
= flag_srgb
;
235 void svga_init_sampler_functions( struct svga_context
*svga
)
237 svga
->pipe
.create_sampler_state
= svga_create_sampler_state
;
238 svga
->pipe
.bind_fragment_sampler_states
= svga_bind_sampler_states
;
239 svga
->pipe
.delete_sampler_state
= svga_delete_sampler_state
;
240 svga
->pipe
.set_fragment_sampler_textures
= svga_set_sampler_textures
;