1 /*
2 * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org>
3 *
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:
10 *
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
13 * Software.
14 *
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
21 * SOFTWARE.
22 *
23 * Authors:
24 * Rob Clark <robclark@freedesktop.org>
25 */
26
27 #include "pipe/p_state.h"
28 #include "util/format/u_format.h"
29 #include "util/u_inlines.h"
30 #include "util/u_memory.h"
31 #include "util/u_string.h"
32
33 #include "fd3_format.h"
34 #include "fd3_texture.h"
35
36 static enum a3xx_tex_clamp
tex_clamp(unsigned wrap,bool * needs_border)37 tex_clamp(unsigned wrap, bool *needs_border)
38 {
39 switch (wrap) {
40 case PIPE_TEX_WRAP_REPEAT:
41 return A3XX_TEX_REPEAT;
42 case PIPE_TEX_WRAP_CLAMP_TO_EDGE:
43 return A3XX_TEX_CLAMP_TO_EDGE;
44 case PIPE_TEX_WRAP_CLAMP_TO_BORDER:
45 *needs_border = true;
46 return A3XX_TEX_CLAMP_TO_BORDER;
47 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE:
48 /* only works for PoT.. need to emulate otherwise! */
49 return A3XX_TEX_MIRROR_CLAMP;
50 case PIPE_TEX_WRAP_MIRROR_REPEAT:
51 return A3XX_TEX_MIRROR_REPEAT;
52 case PIPE_TEX_WRAP_MIRROR_CLAMP:
53 case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER:
54 /* these two we could perhaps emulate, but we currently
55 * just don't advertise PIPE_CAP_TEXTURE_MIRROR_CLAMP
56 */
57 default:
58 DBG("invalid wrap: %u", wrap);
59 return 0;
60 }
61 }
62
63 static enum a3xx_tex_filter
tex_filter(unsigned filter,bool aniso)64 tex_filter(unsigned filter, bool aniso)
65 {
66 switch (filter) {
67 case PIPE_TEX_FILTER_NEAREST:
68 return A3XX_TEX_NEAREST;
69 case PIPE_TEX_FILTER_LINEAR:
70 return aniso ? A3XX_TEX_ANISO : A3XX_TEX_LINEAR;
71 default:
72 DBG("invalid filter: %u", filter);
73 return 0;
74 }
75 }
76
77 static void *
fd3_sampler_state_create(struct pipe_context * pctx,const struct pipe_sampler_state * cso)78 fd3_sampler_state_create(struct pipe_context *pctx,
79 const struct pipe_sampler_state *cso)
80 {
81 struct fd3_sampler_stateobj *so = CALLOC_STRUCT(fd3_sampler_stateobj);
82 unsigned aniso = util_last_bit(MIN2(cso->max_anisotropy >> 1, 8));
83 bool miplinear = false;
84
85 if (!so)
86 return NULL;
87
88 if (cso->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR)
89 miplinear = true;
90
91 so->base = *cso;
92
93 so->needs_border = false;
94 so->texsamp0 =
95 COND(!cso->normalized_coords, A3XX_TEX_SAMP_0_UNNORM_COORDS) |
96 COND(!cso->seamless_cube_map, A3XX_TEX_SAMP_0_CUBEMAPSEAMLESSFILTOFF) |
97 COND(miplinear, A3XX_TEX_SAMP_0_MIPFILTER_LINEAR) |
98 A3XX_TEX_SAMP_0_XY_MAG(tex_filter(cso->mag_img_filter, aniso)) |
99 A3XX_TEX_SAMP_0_XY_MIN(tex_filter(cso->min_img_filter, aniso)) |
100 A3XX_TEX_SAMP_0_ANISO(aniso) |
101 A3XX_TEX_SAMP_0_WRAP_S(tex_clamp(cso->wrap_s, &so->needs_border)) |
102 A3XX_TEX_SAMP_0_WRAP_T(tex_clamp(cso->wrap_t, &so->needs_border)) |
103 A3XX_TEX_SAMP_0_WRAP_R(tex_clamp(cso->wrap_r, &so->needs_border));
104
105 if (cso->compare_mode)
106 so->texsamp0 |=
107 A3XX_TEX_SAMP_0_COMPARE_FUNC(cso->compare_func); /* maps 1:1 */
108
109 so->texsamp1 = A3XX_TEX_SAMP_1_LOD_BIAS(cso->lod_bias);
110
111 if (cso->min_mip_filter != PIPE_TEX_MIPFILTER_NONE) {
112 so->texsamp1 |= A3XX_TEX_SAMP_1_MIN_LOD(cso->min_lod) |
113 A3XX_TEX_SAMP_1_MAX_LOD(cso->max_lod);
114 } else {
115 /* If we're not doing mipmap filtering, we still need a slightly > 0
116 * LOD clamp so the HW can decide between min and mag filtering of
117 * level 0.
118 */
119 so->texsamp1 |= A3XX_TEX_SAMP_1_MIN_LOD(MIN2(cso->min_lod, 0.125f)) |
120 A3XX_TEX_SAMP_1_MAX_LOD(MIN2(cso->max_lod, 0.125f));
121 }
122
123 return so;
124 }
125
126 static enum a3xx_tex_type
tex_type(unsigned target)127 tex_type(unsigned target)
128 {
129 switch (target) {
130 default:
131 assert(0);
132 case PIPE_BUFFER:
133 case PIPE_TEXTURE_1D:
134 case PIPE_TEXTURE_1D_ARRAY:
135 return A3XX_TEX_1D;
136 case PIPE_TEXTURE_RECT:
137 case PIPE_TEXTURE_2D:
138 case PIPE_TEXTURE_2D_ARRAY:
139 return A3XX_TEX_2D;
140 case PIPE_TEXTURE_3D:
141 return A3XX_TEX_3D;
142 case PIPE_TEXTURE_CUBE:
143 case PIPE_TEXTURE_CUBE_ARRAY:
144 return A3XX_TEX_CUBE;
145 }
146 }
147
148 static struct pipe_sampler_view *
fd3_sampler_view_create(struct pipe_context * pctx,struct pipe_resource * prsc,const struct pipe_sampler_view * cso)149 fd3_sampler_view_create(struct pipe_context *pctx, struct pipe_resource *prsc,
150 const struct pipe_sampler_view *cso)
151 {
152 struct fd3_pipe_sampler_view *so = CALLOC_STRUCT(fd3_pipe_sampler_view);
153 struct fd_resource *rsc = fd_resource(prsc);
154 unsigned lvl;
155
156 if (!so)
157 return NULL;
158
159 so->base = *cso;
160 pipe_reference(NULL, &prsc->reference);
161 so->base.texture = prsc;
162 so->base.reference.count = 1;
163 so->base.context = pctx;
164
165 so->texconst0 = A3XX_TEX_CONST_0_TILE_MODE(rsc->layout.tile_mode) |
166 A3XX_TEX_CONST_0_TYPE(tex_type(prsc->target)) |
167 A3XX_TEX_CONST_0_FMT(fd3_pipe2tex(cso->format)) |
168 fd3_tex_swiz(cso->format, cso->swizzle_r, cso->swizzle_g,
169 cso->swizzle_b, cso->swizzle_a);
170
171 if (prsc->target == PIPE_BUFFER || util_format_is_pure_integer(cso->format))
172 so->texconst0 |= A3XX_TEX_CONST_0_NOCONVERT;
173 if (util_format_is_srgb(cso->format))
174 so->texconst0 |= A3XX_TEX_CONST_0_SRGB;
175
176 if (prsc->target == PIPE_BUFFER) {
177 lvl = 0;
178 so->texconst1 =
179 A3XX_TEX_CONST_1_WIDTH(cso->u.buf.size /
180 util_format_get_blocksize(cso->format)) |
181 A3XX_TEX_CONST_1_HEIGHT(1);
182 } else {
183 unsigned miplevels;
184
185 lvl = fd_sampler_first_level(cso);
186 miplevels = fd_sampler_last_level(cso) - lvl;
187
188 so->texconst0 |= A3XX_TEX_CONST_0_MIPLVLS(miplevels);
189 so->texconst1 = A3XX_TEX_CONST_1_PITCHALIGN(rsc->layout.pitchalign - 4) |
190 A3XX_TEX_CONST_1_WIDTH(u_minify(prsc->width0, lvl)) |
191 A3XX_TEX_CONST_1_HEIGHT(u_minify(prsc->height0, lvl));
192 }
193 /* when emitted, A3XX_TEX_CONST_2_INDX() must be OR'd in: */
194 struct fdl_slice *slice = fd_resource_slice(rsc, lvl);
195 so->texconst2 = A3XX_TEX_CONST_2_PITCH(fd_resource_pitch(rsc, lvl));
196 switch (prsc->target) {
197 case PIPE_TEXTURE_1D_ARRAY:
198 case PIPE_TEXTURE_2D_ARRAY:
199 so->texconst3 = A3XX_TEX_CONST_3_DEPTH(prsc->array_size - 1) |
200 A3XX_TEX_CONST_3_LAYERSZ1(slice->size0);
201 break;
202 case PIPE_TEXTURE_3D:
203 so->texconst3 = A3XX_TEX_CONST_3_DEPTH(u_minify(prsc->depth0, lvl)) |
204 A3XX_TEX_CONST_3_LAYERSZ1(slice->size0);
205 so->texconst3 |= A3XX_TEX_CONST_3_LAYERSZ2(
206 fd_resource_slice(rsc, prsc->last_level)->size0);
207 break;
208 default:
209 so->texconst3 = 0x00000000;
210 break;
211 }
212
213 return &so->base;
214 }
215
216 void
fd3_texture_init(struct pipe_context * pctx)217 fd3_texture_init(struct pipe_context *pctx)
218 {
219 pctx->create_sampler_state = fd3_sampler_state_create;
220 pctx->bind_sampler_states = fd_sampler_states_bind;
221 pctx->create_sampler_view = fd3_sampler_view_create;
222 pctx->set_sampler_views = fd_set_sampler_views;
223 }
224