1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
4 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice (including the next
14 * paragraph) shall be included in all copies or substantial portions of the
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 * Rob Clark <robclark@freedesktop.org>
29 #include "pipe/p_state.h"
30 #include "util/u_string.h"
31 #include "util/u_memory.h"
32 #include "util/u_inlines.h"
33 #include "util/u_format.h"
35 #include "fd3_texture.h"
36 #include "fd3_format.h"
38 static enum a3xx_tex_clamp
39 tex_clamp(unsigned wrap
, bool clamp_to_edge
)
41 /* Hardware does not support _CLAMP, but we emulate it: */
42 if (wrap
== PIPE_TEX_WRAP_CLAMP
) {
43 wrap
= (clamp_to_edge
) ?
44 PIPE_TEX_WRAP_CLAMP_TO_EDGE
: PIPE_TEX_WRAP_CLAMP_TO_BORDER
;
48 case PIPE_TEX_WRAP_REPEAT
:
49 return A3XX_TEX_REPEAT
;
50 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
:
51 return A3XX_TEX_CLAMP_TO_EDGE
;
52 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
:
53 return A3XX_TEX_CLAMP_TO_BORDER
;
54 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE
:
55 /* only works for PoT.. need to emulate otherwise! */
56 return A3XX_TEX_MIRROR_CLAMP
;
57 case PIPE_TEX_WRAP_MIRROR_REPEAT
:
58 return A3XX_TEX_MIRROR_REPEAT
;
59 case PIPE_TEX_WRAP_MIRROR_CLAMP
:
60 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER
:
61 /* these two we could perhaps emulate, but we currently
62 * just don't advertise PIPE_CAP_TEXTURE_MIRROR_CLAMP
65 DBG("invalid wrap: %u", wrap
);
70 static enum a3xx_tex_filter
71 tex_filter(unsigned filter
, bool aniso
)
74 case PIPE_TEX_FILTER_NEAREST
:
75 return A3XX_TEX_NEAREST
;
76 case PIPE_TEX_FILTER_LINEAR
:
77 return aniso
? A3XX_TEX_ANISO
: A3XX_TEX_LINEAR
;
79 DBG("invalid filter: %u", filter
);
85 fd3_sampler_state_create(struct pipe_context
*pctx
,
86 const struct pipe_sampler_state
*cso
)
88 struct fd3_sampler_stateobj
*so
= CALLOC_STRUCT(fd3_sampler_stateobj
);
89 unsigned aniso
= util_last_bit(MIN2(cso
->max_anisotropy
>> 1, 8));
90 bool miplinear
= false;
96 if (cso
->min_mip_filter
== PIPE_TEX_MIPFILTER_LINEAR
)
102 * For nearest filtering, _CLAMP means _CLAMP_TO_EDGE; for linear
103 * filtering, _CLAMP means _CLAMP_TO_BORDER while additionally
104 * clamping the texture coordinates to [0.0, 1.0].
106 * The clamping will be taken care of in the shaders. There are two
107 * filters here, but let the minification one has a say.
109 clamp_to_edge
= (cso
->min_img_filter
== PIPE_TEX_FILTER_NEAREST
);
110 if (!clamp_to_edge
) {
111 so
->saturate_s
= (cso
->wrap_s
== PIPE_TEX_WRAP_CLAMP
);
112 so
->saturate_t
= (cso
->wrap_t
== PIPE_TEX_WRAP_CLAMP
);
113 so
->saturate_r
= (cso
->wrap_r
== PIPE_TEX_WRAP_CLAMP
);
117 COND(!cso
->normalized_coords
, A3XX_TEX_SAMP_0_UNNORM_COORDS
) |
118 COND(!cso
->seamless_cube_map
, A3XX_TEX_SAMP_0_CUBEMAPSEAMLESSFILTOFF
) |
119 COND(miplinear
, A3XX_TEX_SAMP_0_MIPFILTER_LINEAR
) |
120 A3XX_TEX_SAMP_0_XY_MAG(tex_filter(cso
->mag_img_filter
, aniso
)) |
121 A3XX_TEX_SAMP_0_XY_MIN(tex_filter(cso
->min_img_filter
, aniso
)) |
122 A3XX_TEX_SAMP_0_ANISO(aniso
) |
123 A3XX_TEX_SAMP_0_WRAP_S(tex_clamp(cso
->wrap_s
, clamp_to_edge
)) |
124 A3XX_TEX_SAMP_0_WRAP_T(tex_clamp(cso
->wrap_t
, clamp_to_edge
)) |
125 A3XX_TEX_SAMP_0_WRAP_R(tex_clamp(cso
->wrap_r
, clamp_to_edge
));
127 if (cso
->compare_mode
)
128 so
->texsamp0
|= A3XX_TEX_SAMP_0_COMPARE_FUNC(cso
->compare_func
); /* maps 1:1 */
130 if (cso
->min_mip_filter
!= PIPE_TEX_MIPFILTER_NONE
) {
132 A3XX_TEX_SAMP_1_LOD_BIAS(cso
->lod_bias
) |
133 A3XX_TEX_SAMP_1_MIN_LOD(cso
->min_lod
) |
134 A3XX_TEX_SAMP_1_MAX_LOD(cso
->max_lod
);
136 so
->texsamp1
= 0x00000000;
143 fd3_sampler_states_bind(struct pipe_context
*pctx
,
144 unsigned shader
, unsigned start
,
145 unsigned nr
, void **hwcso
)
147 struct fd_context
*ctx
= fd_context(pctx
);
148 struct fd3_context
*fd3_ctx
= fd3_context(ctx
);
149 uint16_t saturate_s
= 0, saturate_t
= 0, saturate_r
= 0;
155 for (i
= 0; i
< nr
; i
++) {
157 struct fd3_sampler_stateobj
*sampler
=
158 fd3_sampler_stateobj(hwcso
[i
]);
159 if (sampler
->saturate_s
)
160 saturate_s
|= (1 << i
);
161 if (sampler
->saturate_t
)
162 saturate_t
|= (1 << i
);
163 if (sampler
->saturate_r
)
164 saturate_r
|= (1 << i
);
168 fd_sampler_states_bind(pctx
, shader
, start
, nr
, hwcso
);
170 if (shader
== PIPE_SHADER_FRAGMENT
) {
175 fd3_ctx
->fsaturate_s
= saturate_s
;
176 fd3_ctx
->fsaturate_t
= saturate_t
;
177 fd3_ctx
->fsaturate_r
= saturate_r
;
178 } else if (shader
== PIPE_SHADER_VERTEX
) {
183 fd3_ctx
->vsaturate_s
= saturate_s
;
184 fd3_ctx
->vsaturate_t
= saturate_t
;
185 fd3_ctx
->vsaturate_r
= saturate_r
;
189 static enum a3xx_tex_type
190 tex_type(unsigned target
)
196 case PIPE_TEXTURE_1D
:
197 case PIPE_TEXTURE_1D_ARRAY
:
199 case PIPE_TEXTURE_RECT
:
200 case PIPE_TEXTURE_2D
:
201 case PIPE_TEXTURE_2D_ARRAY
:
203 case PIPE_TEXTURE_3D
:
205 case PIPE_TEXTURE_CUBE
:
206 case PIPE_TEXTURE_CUBE_ARRAY
:
207 return A3XX_TEX_CUBE
;
211 static struct pipe_sampler_view
*
212 fd3_sampler_view_create(struct pipe_context
*pctx
, struct pipe_resource
*prsc
,
213 const struct pipe_sampler_view
*cso
)
215 struct fd3_pipe_sampler_view
*so
= CALLOC_STRUCT(fd3_pipe_sampler_view
);
216 struct fd_resource
*rsc
= fd_resource(prsc
);
224 pipe_reference(NULL
, &prsc
->reference
);
225 so
->base
.texture
= prsc
;
226 so
->base
.reference
.count
= 1;
227 so
->base
.context
= pctx
;
230 A3XX_TEX_CONST_0_TYPE(tex_type(prsc
->target
)) |
231 A3XX_TEX_CONST_0_FMT(fd3_pipe2tex(cso
->format
)) |
232 fd3_tex_swiz(cso
->format
, cso
->swizzle_r
, cso
->swizzle_g
,
233 cso
->swizzle_b
, cso
->swizzle_a
);
235 if (util_format_is_srgb(cso
->format
))
236 so
->texconst0
|= A3XX_TEX_CONST_0_SRGB
;
238 if (prsc
->target
== PIPE_BUFFER
) {
241 A3XX_TEX_CONST_1_FETCHSIZE(fd3_pipe2fetchsize(cso
->format
)) |
242 A3XX_TEX_CONST_1_WIDTH(cso
->u
.buf
.last_element
-
243 cso
->u
.buf
.first_element
+ 1) |
244 A3XX_TEX_CONST_1_HEIGHT(1);
248 lvl
= fd_sampler_first_level(cso
);
249 miplevels
= fd_sampler_last_level(cso
) - lvl
;
251 so
->texconst0
|= A3XX_TEX_CONST_0_MIPLVLS(miplevels
);
253 A3XX_TEX_CONST_1_FETCHSIZE(fd3_pipe2fetchsize(cso
->format
)) |
254 A3XX_TEX_CONST_1_WIDTH(u_minify(prsc
->width0
, lvl
)) |
255 A3XX_TEX_CONST_1_HEIGHT(u_minify(prsc
->height0
, lvl
));
257 /* when emitted, A3XX_TEX_CONST_2_INDX() must be OR'd in: */
259 A3XX_TEX_CONST_2_PITCH(fd3_pipe2nblocksx(cso
->format
, rsc
->slices
[lvl
].pitch
) * rsc
->cpp
);
260 switch (prsc
->target
) {
261 case PIPE_TEXTURE_1D_ARRAY
:
262 case PIPE_TEXTURE_2D_ARRAY
:
264 A3XX_TEX_CONST_3_DEPTH(prsc
->array_size
- 1) |
265 A3XX_TEX_CONST_3_LAYERSZ1(rsc
->slices
[0].size0
);
267 case PIPE_TEXTURE_3D
:
269 A3XX_TEX_CONST_3_DEPTH(u_minify(prsc
->depth0
, lvl
)) |
270 A3XX_TEX_CONST_3_LAYERSZ1(rsc
->slices
[lvl
].size0
);
271 while (lvl
< cso
->u
.tex
.last_level
&& sz2
!= rsc
->slices
[lvl
+1].size0
)
272 sz2
= rsc
->slices
[++lvl
].size0
;
273 so
->texconst3
|= A3XX_TEX_CONST_3_LAYERSZ2(sz2
);
276 so
->texconst3
= 0x00000000;
284 fd3_texture_init(struct pipe_context
*pctx
)
286 pctx
->create_sampler_state
= fd3_sampler_state_create
;
287 pctx
->bind_sampler_states
= fd3_sampler_states_bind
;
288 pctx
->create_sampler_view
= fd3_sampler_view_create
;
289 pctx
->set_sampler_views
= fd_set_sampler_views
;