2 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 * Rob Clark <robclark@freedesktop.org>
27 #include "pipe/p_state.h"
28 #include "util/u_string.h"
29 #include "util/u_memory.h"
30 #include "util/u_inlines.h"
31 #include "util/format/u_format.h"
33 #include "fd3_texture.h"
34 #include "fd3_format.h"
36 static enum a3xx_tex_clamp
37 tex_clamp(unsigned wrap
, bool clamp_to_edge
, bool *needs_border
)
39 /* Hardware does not support _CLAMP, but we emulate it: */
40 if (wrap
== PIPE_TEX_WRAP_CLAMP
) {
41 wrap
= (clamp_to_edge
) ?
42 PIPE_TEX_WRAP_CLAMP_TO_EDGE
: PIPE_TEX_WRAP_CLAMP_TO_BORDER
;
46 case PIPE_TEX_WRAP_REPEAT
:
47 return A3XX_TEX_REPEAT
;
48 case PIPE_TEX_WRAP_CLAMP_TO_EDGE
:
49 return A3XX_TEX_CLAMP_TO_EDGE
;
50 case PIPE_TEX_WRAP_CLAMP_TO_BORDER
:
52 return A3XX_TEX_CLAMP_TO_BORDER
;
53 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE
:
54 /* only works for PoT.. need to emulate otherwise! */
55 return A3XX_TEX_MIRROR_CLAMP
;
56 case PIPE_TEX_WRAP_MIRROR_REPEAT
:
57 return A3XX_TEX_MIRROR_REPEAT
;
58 case PIPE_TEX_WRAP_MIRROR_CLAMP
:
59 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER
:
60 /* these two we could perhaps emulate, but we currently
61 * just don't advertise PIPE_CAP_TEXTURE_MIRROR_CLAMP
64 DBG("invalid wrap: %u", wrap
);
69 static enum a3xx_tex_filter
70 tex_filter(unsigned filter
, bool aniso
)
73 case PIPE_TEX_FILTER_NEAREST
:
74 return A3XX_TEX_NEAREST
;
75 case PIPE_TEX_FILTER_LINEAR
:
76 return aniso
? A3XX_TEX_ANISO
: A3XX_TEX_LINEAR
;
78 DBG("invalid filter: %u", filter
);
84 fd3_sampler_state_create(struct pipe_context
*pctx
,
85 const struct pipe_sampler_state
*cso
)
87 struct fd3_sampler_stateobj
*so
= CALLOC_STRUCT(fd3_sampler_stateobj
);
88 unsigned aniso
= util_last_bit(MIN2(cso
->max_anisotropy
>> 1, 8));
89 bool miplinear
= false;
95 if (cso
->min_mip_filter
== PIPE_TEX_MIPFILTER_LINEAR
)
101 * For nearest filtering, _CLAMP means _CLAMP_TO_EDGE; for linear
102 * filtering, _CLAMP means _CLAMP_TO_BORDER while additionally
103 * clamping the texture coordinates to [0.0, 1.0].
105 * The clamping will be taken care of in the shaders. There are two
106 * filters here, but let the minification one has a say.
108 clamp_to_edge
= (cso
->min_img_filter
== PIPE_TEX_FILTER_NEAREST
);
109 if (!clamp_to_edge
) {
110 so
->saturate_s
= (cso
->wrap_s
== PIPE_TEX_WRAP_CLAMP
);
111 so
->saturate_t
= (cso
->wrap_t
== PIPE_TEX_WRAP_CLAMP
);
112 so
->saturate_r
= (cso
->wrap_r
== PIPE_TEX_WRAP_CLAMP
);
115 so
->needs_border
= false;
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
, &so
->needs_border
)) |
124 A3XX_TEX_SAMP_0_WRAP_T(tex_clamp(cso
->wrap_t
, clamp_to_edge
, &so
->needs_border
)) |
125 A3XX_TEX_SAMP_0_WRAP_R(tex_clamp(cso
->wrap_r
, clamp_to_edge
, &so
->needs_border
));
127 if (cso
->compare_mode
)
128 so
->texsamp0
|= A3XX_TEX_SAMP_0_COMPARE_FUNC(cso
->compare_func
); /* maps 1:1 */
130 so
->texsamp1
= A3XX_TEX_SAMP_1_LOD_BIAS(cso
->lod_bias
);
132 if (cso
->min_mip_filter
!= PIPE_TEX_MIPFILTER_NONE
) {
134 A3XX_TEX_SAMP_1_MIN_LOD(cso
->min_lod
) |
135 A3XX_TEX_SAMP_1_MAX_LOD(cso
->max_lod
);
137 /* If we're not doing mipmap filtering, we still need a slightly > 0
138 * LOD clamp so the HW can decide between min and mag filtering of
142 A3XX_TEX_SAMP_1_MIN_LOD(MIN2(cso
->min_lod
, 0.125)) |
143 A3XX_TEX_SAMP_1_MAX_LOD(MIN2(cso
->max_lod
, 0.125));
150 fd3_sampler_states_bind(struct pipe_context
*pctx
,
151 enum pipe_shader_type shader
, unsigned start
,
152 unsigned nr
, void **hwcso
)
154 struct fd_context
*ctx
= fd_context(pctx
);
155 struct fd3_context
*fd3_ctx
= fd3_context(ctx
);
156 uint16_t saturate_s
= 0, saturate_t
= 0, saturate_r
= 0;
162 for (i
= 0; i
< nr
; i
++) {
164 struct fd3_sampler_stateobj
*sampler
=
165 fd3_sampler_stateobj(hwcso
[i
]);
166 if (sampler
->saturate_s
)
167 saturate_s
|= (1 << i
);
168 if (sampler
->saturate_t
)
169 saturate_t
|= (1 << i
);
170 if (sampler
->saturate_r
)
171 saturate_r
|= (1 << i
);
175 fd_sampler_states_bind(pctx
, shader
, start
, nr
, hwcso
);
177 if (shader
== PIPE_SHADER_FRAGMENT
) {
182 fd3_ctx
->fsaturate_s
= saturate_s
;
183 fd3_ctx
->fsaturate_t
= saturate_t
;
184 fd3_ctx
->fsaturate_r
= saturate_r
;
185 } else if (shader
== PIPE_SHADER_VERTEX
) {
190 fd3_ctx
->vsaturate_s
= saturate_s
;
191 fd3_ctx
->vsaturate_t
= saturate_t
;
192 fd3_ctx
->vsaturate_r
= saturate_r
;
196 static enum a3xx_tex_type
197 tex_type(unsigned target
)
203 case PIPE_TEXTURE_1D
:
204 case PIPE_TEXTURE_1D_ARRAY
:
206 case PIPE_TEXTURE_RECT
:
207 case PIPE_TEXTURE_2D
:
208 case PIPE_TEXTURE_2D_ARRAY
:
210 case PIPE_TEXTURE_3D
:
212 case PIPE_TEXTURE_CUBE
:
213 case PIPE_TEXTURE_CUBE_ARRAY
:
214 return A3XX_TEX_CUBE
;
218 static struct pipe_sampler_view
*
219 fd3_sampler_view_create(struct pipe_context
*pctx
, struct pipe_resource
*prsc
,
220 const struct pipe_sampler_view
*cso
)
222 struct fd3_pipe_sampler_view
*so
= CALLOC_STRUCT(fd3_pipe_sampler_view
);
223 struct fd_resource
*rsc
= fd_resource(prsc
);
230 pipe_reference(NULL
, &prsc
->reference
);
231 so
->base
.texture
= prsc
;
232 so
->base
.reference
.count
= 1;
233 so
->base
.context
= pctx
;
236 A3XX_TEX_CONST_0_TILE_MODE(rsc
->tile_mode
) |
237 A3XX_TEX_CONST_0_TYPE(tex_type(prsc
->target
)) |
238 A3XX_TEX_CONST_0_FMT(fd3_pipe2tex(cso
->format
)) |
239 fd3_tex_swiz(cso
->format
, cso
->swizzle_r
, cso
->swizzle_g
,
240 cso
->swizzle_b
, cso
->swizzle_a
);
242 if (prsc
->target
== PIPE_BUFFER
|| util_format_is_pure_integer(cso
->format
))
243 so
->texconst0
|= A3XX_TEX_CONST_0_NOCONVERT
;
244 if (util_format_is_srgb(cso
->format
))
245 so
->texconst0
|= A3XX_TEX_CONST_0_SRGB
;
247 if (prsc
->target
== PIPE_BUFFER
) {
250 A3XX_TEX_CONST_1_FETCHSIZE(fd3_pipe2fetchsize(cso
->format
)) |
251 A3XX_TEX_CONST_1_WIDTH(cso
->u
.buf
.size
/ util_format_get_blocksize(cso
->format
)) |
252 A3XX_TEX_CONST_1_HEIGHT(1);
256 lvl
= fd_sampler_first_level(cso
);
257 miplevels
= fd_sampler_last_level(cso
) - lvl
;
259 so
->texconst0
|= A3XX_TEX_CONST_0_MIPLVLS(miplevels
);
261 A3XX_TEX_CONST_1_FETCHSIZE(fd3_pipe2fetchsize(cso
->format
)) |
262 A3XX_TEX_CONST_1_WIDTH(u_minify(prsc
->width0
, lvl
)) |
263 A3XX_TEX_CONST_1_HEIGHT(u_minify(prsc
->height0
, lvl
));
265 /* when emitted, A3XX_TEX_CONST_2_INDX() must be OR'd in: */
266 struct fdl_slice
*slice
= fd_resource_slice(rsc
, lvl
);
268 A3XX_TEX_CONST_2_PITCH(fd3_pipe2nblocksx(cso
->format
, slice
->pitch
) * rsc
->cpp
);
269 switch (prsc
->target
) {
270 case PIPE_TEXTURE_1D_ARRAY
:
271 case PIPE_TEXTURE_2D_ARRAY
:
273 A3XX_TEX_CONST_3_DEPTH(prsc
->array_size
- 1) |
274 A3XX_TEX_CONST_3_LAYERSZ1(slice
->size0
);
276 case PIPE_TEXTURE_3D
:
278 A3XX_TEX_CONST_3_DEPTH(u_minify(prsc
->depth0
, lvl
)) |
279 A3XX_TEX_CONST_3_LAYERSZ1(slice
->size0
);
280 so
->texconst3
|= A3XX_TEX_CONST_3_LAYERSZ2(
281 fd_resource_slice(rsc
, prsc
->last_level
)->size0
);
284 so
->texconst3
= 0x00000000;
292 fd3_texture_init(struct pipe_context
*pctx
)
294 pctx
->create_sampler_state
= fd3_sampler_state_create
;
295 pctx
->bind_sampler_states
= fd3_sampler_states_bind
;
296 pctx
->create_sampler_view
= fd3_sampler_view_create
;
297 pctx
->set_sampler_views
= fd_set_sampler_views
;