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
, bool *needs_border
)
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
:
54 return A3XX_TEX_CLAMP_TO_BORDER
;
55 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE
:
56 /* only works for PoT.. need to emulate otherwise! */
57 return A3XX_TEX_MIRROR_CLAMP
;
58 case PIPE_TEX_WRAP_MIRROR_REPEAT
:
59 return A3XX_TEX_MIRROR_REPEAT
;
60 case PIPE_TEX_WRAP_MIRROR_CLAMP
:
61 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER
:
62 /* these two we could perhaps emulate, but we currently
63 * just don't advertise PIPE_CAP_TEXTURE_MIRROR_CLAMP
66 DBG("invalid wrap: %u", wrap
);
71 static enum a3xx_tex_filter
72 tex_filter(unsigned filter
, bool aniso
)
75 case PIPE_TEX_FILTER_NEAREST
:
76 return A3XX_TEX_NEAREST
;
77 case PIPE_TEX_FILTER_LINEAR
:
78 return aniso
? A3XX_TEX_ANISO
: A3XX_TEX_LINEAR
;
80 DBG("invalid filter: %u", filter
);
86 fd3_sampler_state_create(struct pipe_context
*pctx
,
87 const struct pipe_sampler_state
*cso
)
89 struct fd3_sampler_stateobj
*so
= CALLOC_STRUCT(fd3_sampler_stateobj
);
90 unsigned aniso
= util_last_bit(MIN2(cso
->max_anisotropy
>> 1, 8));
91 bool miplinear
= false;
97 if (cso
->min_mip_filter
== PIPE_TEX_MIPFILTER_LINEAR
)
103 * For nearest filtering, _CLAMP means _CLAMP_TO_EDGE; for linear
104 * filtering, _CLAMP means _CLAMP_TO_BORDER while additionally
105 * clamping the texture coordinates to [0.0, 1.0].
107 * The clamping will be taken care of in the shaders. There are two
108 * filters here, but let the minification one has a say.
110 clamp_to_edge
= (cso
->min_img_filter
== PIPE_TEX_FILTER_NEAREST
);
111 if (!clamp_to_edge
) {
112 so
->saturate_s
= (cso
->wrap_s
== PIPE_TEX_WRAP_CLAMP
);
113 so
->saturate_t
= (cso
->wrap_t
== PIPE_TEX_WRAP_CLAMP
);
114 so
->saturate_r
= (cso
->wrap_r
== PIPE_TEX_WRAP_CLAMP
);
117 so
->needs_border
= false;
119 COND(!cso
->normalized_coords
, A3XX_TEX_SAMP_0_UNNORM_COORDS
) |
120 COND(!cso
->seamless_cube_map
, A3XX_TEX_SAMP_0_CUBEMAPSEAMLESSFILTOFF
) |
121 COND(miplinear
, A3XX_TEX_SAMP_0_MIPFILTER_LINEAR
) |
122 A3XX_TEX_SAMP_0_XY_MAG(tex_filter(cso
->mag_img_filter
, aniso
)) |
123 A3XX_TEX_SAMP_0_XY_MIN(tex_filter(cso
->min_img_filter
, aniso
)) |
124 A3XX_TEX_SAMP_0_ANISO(aniso
) |
125 A3XX_TEX_SAMP_0_WRAP_S(tex_clamp(cso
->wrap_s
, clamp_to_edge
, &so
->needs_border
)) |
126 A3XX_TEX_SAMP_0_WRAP_T(tex_clamp(cso
->wrap_t
, clamp_to_edge
, &so
->needs_border
)) |
127 A3XX_TEX_SAMP_0_WRAP_R(tex_clamp(cso
->wrap_r
, clamp_to_edge
, &so
->needs_border
));
129 if (cso
->compare_mode
)
130 so
->texsamp0
|= A3XX_TEX_SAMP_0_COMPARE_FUNC(cso
->compare_func
); /* maps 1:1 */
132 if (cso
->min_mip_filter
!= PIPE_TEX_MIPFILTER_NONE
) {
134 A3XX_TEX_SAMP_1_LOD_BIAS(cso
->lod_bias
) |
135 A3XX_TEX_SAMP_1_MIN_LOD(cso
->min_lod
) |
136 A3XX_TEX_SAMP_1_MAX_LOD(cso
->max_lod
);
138 so
->texsamp1
= 0x00000000;
145 fd3_sampler_states_bind(struct pipe_context
*pctx
,
146 enum pipe_shader_type shader
, unsigned start
,
147 unsigned nr
, void **hwcso
)
149 struct fd_context
*ctx
= fd_context(pctx
);
150 struct fd3_context
*fd3_ctx
= fd3_context(ctx
);
151 uint16_t saturate_s
= 0, saturate_t
= 0, saturate_r
= 0;
157 for (i
= 0; i
< nr
; i
++) {
159 struct fd3_sampler_stateobj
*sampler
=
160 fd3_sampler_stateobj(hwcso
[i
]);
161 if (sampler
->saturate_s
)
162 saturate_s
|= (1 << i
);
163 if (sampler
->saturate_t
)
164 saturate_t
|= (1 << i
);
165 if (sampler
->saturate_r
)
166 saturate_r
|= (1 << i
);
170 fd_sampler_states_bind(pctx
, shader
, start
, nr
, hwcso
);
172 if (shader
== PIPE_SHADER_FRAGMENT
) {
177 fd3_ctx
->fsaturate_s
= saturate_s
;
178 fd3_ctx
->fsaturate_t
= saturate_t
;
179 fd3_ctx
->fsaturate_r
= saturate_r
;
180 } else if (shader
== PIPE_SHADER_VERTEX
) {
185 fd3_ctx
->vsaturate_s
= saturate_s
;
186 fd3_ctx
->vsaturate_t
= saturate_t
;
187 fd3_ctx
->vsaturate_r
= saturate_r
;
191 static enum a3xx_tex_type
192 tex_type(unsigned target
)
198 case PIPE_TEXTURE_1D
:
199 case PIPE_TEXTURE_1D_ARRAY
:
201 case PIPE_TEXTURE_RECT
:
202 case PIPE_TEXTURE_2D
:
203 case PIPE_TEXTURE_2D_ARRAY
:
205 case PIPE_TEXTURE_3D
:
207 case PIPE_TEXTURE_CUBE
:
208 case PIPE_TEXTURE_CUBE_ARRAY
:
209 return A3XX_TEX_CUBE
;
213 static struct pipe_sampler_view
*
214 fd3_sampler_view_create(struct pipe_context
*pctx
, struct pipe_resource
*prsc
,
215 const struct pipe_sampler_view
*cso
)
217 struct fd3_pipe_sampler_view
*so
= CALLOC_STRUCT(fd3_pipe_sampler_view
);
218 struct fd_resource
*rsc
= fd_resource(prsc
);
226 pipe_reference(NULL
, &prsc
->reference
);
227 so
->base
.texture
= prsc
;
228 so
->base
.reference
.count
= 1;
229 so
->base
.context
= pctx
;
232 A3XX_TEX_CONST_0_TYPE(tex_type(prsc
->target
)) |
233 A3XX_TEX_CONST_0_FMT(fd3_pipe2tex(cso
->format
)) |
234 fd3_tex_swiz(cso
->format
, cso
->swizzle_r
, cso
->swizzle_g
,
235 cso
->swizzle_b
, cso
->swizzle_a
);
237 if (prsc
->target
== PIPE_BUFFER
|| util_format_is_pure_integer(cso
->format
))
238 so
->texconst0
|= A3XX_TEX_CONST_0_NOCONVERT
;
239 if (util_format_is_srgb(cso
->format
))
240 so
->texconst0
|= A3XX_TEX_CONST_0_SRGB
;
242 if (prsc
->target
== PIPE_BUFFER
) {
245 A3XX_TEX_CONST_1_FETCHSIZE(fd3_pipe2fetchsize(cso
->format
)) |
246 A3XX_TEX_CONST_1_WIDTH(cso
->u
.buf
.size
/ util_format_get_blocksize(cso
->format
)) |
247 A3XX_TEX_CONST_1_HEIGHT(1);
251 lvl
= fd_sampler_first_level(cso
);
252 miplevels
= fd_sampler_last_level(cso
) - lvl
;
254 so
->texconst0
|= A3XX_TEX_CONST_0_MIPLVLS(miplevels
);
256 A3XX_TEX_CONST_1_FETCHSIZE(fd3_pipe2fetchsize(cso
->format
)) |
257 A3XX_TEX_CONST_1_WIDTH(u_minify(prsc
->width0
, lvl
)) |
258 A3XX_TEX_CONST_1_HEIGHT(u_minify(prsc
->height0
, lvl
));
260 /* when emitted, A3XX_TEX_CONST_2_INDX() must be OR'd in: */
262 A3XX_TEX_CONST_2_PITCH(fd3_pipe2nblocksx(cso
->format
, rsc
->slices
[lvl
].pitch
) * rsc
->cpp
);
263 switch (prsc
->target
) {
264 case PIPE_TEXTURE_1D_ARRAY
:
265 case PIPE_TEXTURE_2D_ARRAY
:
267 A3XX_TEX_CONST_3_DEPTH(prsc
->array_size
- 1) |
268 A3XX_TEX_CONST_3_LAYERSZ1(rsc
->slices
[0].size0
);
270 case PIPE_TEXTURE_3D
:
272 A3XX_TEX_CONST_3_DEPTH(u_minify(prsc
->depth0
, lvl
)) |
273 A3XX_TEX_CONST_3_LAYERSZ1(rsc
->slices
[lvl
].size0
);
274 while (lvl
< cso
->u
.tex
.last_level
&& sz2
!= rsc
->slices
[lvl
+1].size0
)
275 sz2
= rsc
->slices
[++lvl
].size0
;
276 so
->texconst3
|= A3XX_TEX_CONST_3_LAYERSZ2(sz2
);
279 so
->texconst3
= 0x00000000;
287 fd3_texture_init(struct pipe_context
*pctx
)
289 pctx
->create_sampler_state
= fd3_sampler_state_create
;
290 pctx
->bind_sampler_states
= fd3_sampler_states_bind
;
291 pctx
->create_sampler_view
= fd3_sampler_view_create
;
292 pctx
->set_sampler_views
= fd_set_sampler_views
;