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 "util/u_inlines.h"
27 #include "pipe/p_defines.h"
28 #include "util/u_format.h"
29 #include "util/u_math.h"
30 #include "util/u_memory.h"
31 #include "tgsi/tgsi_parse.h"
33 #include "svga_context.h"
34 #include "svga_resource_texture.h"
36 #include "svga_debug.h"
38 static INLINE
unsigned
39 translate_wrap_mode(unsigned wrap
)
42 case PIPE_TEX_WRAP_REPEAT
:
43 return SVGA3D_TEX_ADDRESS_WRAP
;
45 case PIPE_TEX_WRAP_CLAMP
:
46 return SVGA3D_TEX_ADDRESS_CLAMP
;
48 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
:
49 /* Unfortunately SVGA3D_TEX_ADDRESS_EDGE not respected by
52 return SVGA3D_TEX_ADDRESS_CLAMP
;
54 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
:
55 return SVGA3D_TEX_ADDRESS_BORDER
;
57 case PIPE_TEX_WRAP_MIRROR_REPEAT
:
58 return SVGA3D_TEX_ADDRESS_MIRROR
;
60 case PIPE_TEX_WRAP_MIRROR_CLAMP
:
61 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE
:
62 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER
:
63 return SVGA3D_TEX_ADDRESS_MIRRORONCE
;
67 return SVGA3D_TEX_ADDRESS_WRAP
;
71 static INLINE
unsigned translate_img_filter( unsigned filter
)
74 case PIPE_TEX_FILTER_NEAREST
: return SVGA3D_TEX_FILTER_NEAREST
;
75 case PIPE_TEX_FILTER_LINEAR
: return SVGA3D_TEX_FILTER_LINEAR
;
78 return SVGA3D_TEX_FILTER_NEAREST
;
82 static INLINE
unsigned translate_mip_filter( unsigned filter
)
85 case PIPE_TEX_MIPFILTER_NONE
: return SVGA3D_TEX_FILTER_NONE
;
86 case PIPE_TEX_MIPFILTER_NEAREST
: return SVGA3D_TEX_FILTER_NEAREST
;
87 case PIPE_TEX_MIPFILTER_LINEAR
: return SVGA3D_TEX_FILTER_LINEAR
;
90 return SVGA3D_TEX_FILTER_NONE
;
95 svga_create_sampler_state(struct pipe_context
*pipe
,
96 const struct pipe_sampler_state
*sampler
)
98 struct svga_context
*svga
= svga_context(pipe
);
99 struct svga_sampler_state
*cso
= CALLOC_STRUCT( svga_sampler_state
);
104 cso
->mipfilter
= translate_mip_filter(sampler
->min_mip_filter
);
105 cso
->magfilter
= translate_img_filter( sampler
->mag_img_filter
);
106 cso
->minfilter
= translate_img_filter( sampler
->min_img_filter
);
107 cso
->aniso_level
= MAX2( sampler
->max_anisotropy
, 1 );
108 if(sampler
->max_anisotropy
)
109 cso
->magfilter
= cso
->minfilter
= SVGA3D_TEX_FILTER_ANISOTROPIC
;
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 uint32 r
= float_to_ubyte(sampler
->border_color
.f
[0]);
120 uint32 g
= float_to_ubyte(sampler
->border_color
.f
[1]);
121 uint32 b
= float_to_ubyte(sampler
->border_color
.f
[2]);
122 uint32 a
= float_to_ubyte(sampler
->border_color
.f
[3]);
124 cso
->bordercolor
= (a
<< 24) | (r
<< 16) | (g
<< 8) | b
;
127 /* No SVGA3D support for:
128 * - min/max LOD clamping
131 cso
->view_min_lod
= MAX2((int) (sampler
->min_lod
+ 0.5), 0);
132 cso
->view_max_lod
= MAX2((int) (sampler
->max_lod
+ 0.5), 0);
135 if (svga
->debug
.use_min_mipmap
) {
136 if (cso
->view_min_lod
== cso
->view_max_lod
) {
137 cso
->min_lod
= cso
->view_min_lod
;
138 cso
->view_min_lod
= 0;
139 cso
->view_max_lod
= 1000; /* Just a high number */
140 cso
->mipfilter
= SVGA3D_TEX_FILTER_NONE
;
144 SVGA_DBG(DEBUG_VIEWS
, "min %u, view(min %u, max %u) lod, mipfilter %s\n",
145 cso
->min_lod
, cso
->view_min_lod
, cso
->view_max_lod
,
146 cso
->mipfilter
== SVGA3D_TEX_FILTER_NONE
? "SVGA3D_TEX_FILTER_NONE" : "SOMETHING");
152 svga_bind_sampler_states(struct pipe_context
*pipe
,
158 struct svga_context
*svga
= svga_context(pipe
);
161 assert(shader
< PIPE_SHADER_TYPES
);
162 assert(start
+ num
<= PIPE_MAX_SAMPLERS
);
164 /* we only support fragment shader samplers at this time */
165 if (shader
!= PIPE_SHADER_FRAGMENT
)
168 for (i
= 0; i
< num
; i
++)
169 svga
->curr
.sampler
[start
+ i
] = samplers
[i
];
171 /* find highest non-null sampler[] entry */
173 unsigned j
= MAX2(svga
->curr
.num_samplers
, start
+ num
);
174 while (j
> 0 && svga
->curr
.sampler
[j
- 1] == NULL
)
176 svga
->curr
.num_samplers
= j
;
179 svga
->dirty
|= SVGA_NEW_SAMPLER
;
183 static void svga_delete_sampler_state(struct pipe_context
*pipe
,
190 static struct pipe_sampler_view
*
191 svga_create_sampler_view(struct pipe_context
*pipe
,
192 struct pipe_resource
*texture
,
193 const struct pipe_sampler_view
*templ
)
195 struct pipe_sampler_view
*view
= CALLOC_STRUCT(pipe_sampler_view
);
199 view
->reference
.count
= 1;
200 view
->texture
= NULL
;
201 pipe_resource_reference(&view
->texture
, texture
);
202 view
->context
= pipe
;
210 svga_sampler_view_destroy(struct pipe_context
*pipe
,
211 struct pipe_sampler_view
*view
)
213 pipe_resource_reference(&view
->texture
, NULL
);
218 svga_set_sampler_views(struct pipe_context
*pipe
,
222 struct pipe_sampler_view
**views
)
224 struct svga_context
*svga
= svga_context(pipe
);
225 unsigned flag_1d
= 0;
226 unsigned flag_srgb
= 0;
229 assert(shader
< PIPE_SHADER_TYPES
);
230 assert(start
+ num
<= Elements(svga
->curr
.sampler_views
));
232 /* we only support fragment shader sampler views at this time */
233 if (shader
!= PIPE_SHADER_FRAGMENT
)
236 for (i
= 0; i
< num
; i
++) {
237 if (svga
->curr
.sampler_views
[start
+ i
] != views
[i
]) {
238 /* Note: we're using pipe_sampler_view_release() here to work around
239 * a possible crash when the old view belongs to another context that
240 * was already destroyed.
242 pipe_sampler_view_release(pipe
, &svga
->curr
.sampler_views
[start
+ i
]);
243 pipe_sampler_view_reference(&svga
->curr
.sampler_views
[start
+ i
],
250 if (util_format_is_srgb(views
[i
]->format
))
251 flag_srgb
|= 1 << (start
+ i
);
253 if (views
[i
]->texture
->target
== PIPE_TEXTURE_1D
)
254 flag_1d
|= 1 << (start
+ i
);
257 /* find highest non-null sampler_views[] entry */
259 unsigned j
= MAX2(svga
->curr
.num_sampler_views
, start
+ num
);
260 while (j
> 0 && svga
->curr
.sampler_views
[j
- 1] == NULL
)
262 svga
->curr
.num_sampler_views
= j
;
265 svga
->dirty
|= SVGA_NEW_TEXTURE_BINDING
;
267 if (flag_srgb
!= svga
->curr
.tex_flags
.flag_srgb
||
268 flag_1d
!= svga
->curr
.tex_flags
.flag_1d
)
270 svga
->dirty
|= SVGA_NEW_TEXTURE_FLAGS
;
271 svga
->curr
.tex_flags
.flag_1d
= flag_1d
;
272 svga
->curr
.tex_flags
.flag_srgb
= flag_srgb
;
277 void svga_init_sampler_functions( struct svga_context
*svga
)
279 svga
->pipe
.create_sampler_state
= svga_create_sampler_state
;
280 svga
->pipe
.bind_sampler_states
= svga_bind_sampler_states
;
281 svga
->pipe
.delete_sampler_state
= svga_delete_sampler_state
;
282 svga
->pipe
.set_sampler_views
= svga_set_sampler_views
;
283 svga
->pipe
.create_sampler_view
= svga_create_sampler_view
;
284 svga
->pipe
.sampler_view_destroy
= svga_sampler_view_destroy
;