1 /*
2 * Copyright (C) 2016 Rob Clark <robclark@freedesktop.org>
3 * Copyright © 2018 Google, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 * Authors:
25 * Rob Clark <robclark@freedesktop.org>
26 */
27
28 #ifndef FD6_TEXTURE_H_
29 #define FD6_TEXTURE_H_
30
31 #include "pipe/p_context.h"
32
33 #include "freedreno_resource.h"
34 #include "freedreno_texture.h"
35
36 #include "fd6_context.h"
37 #include "fd6_format.h"
38
39 struct fd6_sampler_stateobj {
40 struct pipe_sampler_state base;
41 uint32_t texsamp0, texsamp1, texsamp2, texsamp3;
42 bool needs_border;
43 uint16_t seqno;
44 };
45
46 static inline struct fd6_sampler_stateobj *
fd6_sampler_stateobj(struct pipe_sampler_state * samp)47 fd6_sampler_stateobj(struct pipe_sampler_state *samp)
48 {
49 return (struct fd6_sampler_stateobj *)samp;
50 }
51
52 struct fd6_pipe_sampler_view {
53 struct pipe_sampler_view base;
54 uint32_t texconst0, texconst1, texconst2, texconst3, texconst5;
55 uint32_t texconst6, texconst7, texconst8, texconst9, texconst10, texconst11;
56 uint32_t offset1, offset2;
57 struct fd_resource *ptr1, *ptr2;
58 uint16_t seqno;
59
60 /* For detecting when a resource has transitioned from UBWC compressed
61 * to uncompressed, which means the sampler state needs to be updated
62 */
63 uint16_t rsc_seqno;
64
65 bool needs_validate;
66 };
67
68 static inline struct fd6_pipe_sampler_view *
fd6_pipe_sampler_view(struct pipe_sampler_view * pview)69 fd6_pipe_sampler_view(struct pipe_sampler_view *pview)
70 {
71 return (struct fd6_pipe_sampler_view *)pview;
72 }
73
74 void fd6_sampler_view_update(struct fd_context *ctx,
75 struct fd6_pipe_sampler_view *so) assert_dt;
76
77 void fd6_texture_init(struct pipe_context *pctx);
78 void fd6_texture_fini(struct pipe_context *pctx);
79
80 static inline enum a6xx_tex_type
fd6_tex_type(unsigned target)81 fd6_tex_type(unsigned target)
82 {
83 switch (target) {
84 default:
85 assert(0);
86 case PIPE_BUFFER:
87 case PIPE_TEXTURE_1D:
88 case PIPE_TEXTURE_1D_ARRAY:
89 return A6XX_TEX_1D;
90 case PIPE_TEXTURE_RECT:
91 case PIPE_TEXTURE_2D:
92 case PIPE_TEXTURE_2D_ARRAY:
93 return A6XX_TEX_2D;
94 case PIPE_TEXTURE_3D:
95 return A6XX_TEX_3D;
96 case PIPE_TEXTURE_CUBE:
97 case PIPE_TEXTURE_CUBE_ARRAY:
98 return A6XX_TEX_CUBE;
99 }
100 }
101
102 static inline unsigned
fd6_border_color_offset(struct fd_context * ctx,enum pipe_shader_type type,struct fd_texture_stateobj * tex)103 fd6_border_color_offset(struct fd_context *ctx, enum pipe_shader_type type,
104 struct fd_texture_stateobj *tex) assert_dt
105 {
106 /* Currently we put the FS border-color state after VS. Possibly
107 * we could swap the order.
108 *
109 * This will need update for HS/DS/GS
110 */
111 if (type != PIPE_SHADER_FRAGMENT)
112 return 0;
113
114 unsigned needs_border = false;
115
116 for (unsigned i = 0; i < tex->num_samplers; i++) {
117 if (!tex->samplers[i])
118 continue;
119
120 struct fd6_sampler_stateobj *sampler =
121 fd6_sampler_stateobj(tex->samplers[i]);
122
123 needs_border |= sampler->needs_border;
124 }
125
126 if (!needs_border)
127 return 0;
128
129 return ctx->tex[PIPE_SHADER_VERTEX].num_samplers;
130 }
131
132 /*
133 * Texture stateobj:
134 *
135 * The sampler and sampler-view state is mapped to a single hardware
136 * stateobj which can be emit'd as a pointer in a CP_SET_DRAW_STATE
137 * packet, to avoid the overhead of re-generating the entire cmdstream
138 * when application toggles thru multiple different texture states.
139 */
140
141 struct fd6_texture_key {
142 struct {
143 /* We need to track the seqno of the rsc as well as of the
144 * sampler view, because resource shadowing/etc can result
145 * that the underlying bo changes (which means the previous
146 * state was no longer valid.
147 */
148 uint16_t rsc_seqno;
149 uint16_t seqno;
150 } view[16];
151 struct {
152 uint16_t seqno;
153 } samp[16];
154 uint8_t type;
155 uint8_t bcolor_offset;
156 };
157
158 struct fd6_texture_state {
159 struct pipe_reference reference;
160 struct fd6_texture_key key;
161 struct fd_ringbuffer *stateobj;
162 bool needs_border;
163 };
164
165 struct fd6_texture_state *
166 fd6_texture_state(struct fd_context *ctx, enum pipe_shader_type type,
167 struct fd_texture_stateobj *tex) assert_dt;
168
169 /* not called directly: */
170 void __fd6_texture_state_describe(char *buf,
171 const struct fd6_texture_state *tex);
172 void __fd6_texture_state_destroy(struct fd6_texture_state *tex);
173
174 static inline void
fd6_texture_state_reference(struct fd6_texture_state ** ptr,struct fd6_texture_state * tex)175 fd6_texture_state_reference(struct fd6_texture_state **ptr,
176 struct fd6_texture_state *tex)
177 {
178 struct fd6_texture_state *old_tex = *ptr;
179
180 if (pipe_reference_described(
181 &(*ptr)->reference, &tex->reference,
182 (debug_reference_descriptor)__fd6_texture_state_describe))
183 __fd6_texture_state_destroy(old_tex);
184
185 *ptr = tex;
186 }
187
188 #endif /* FD6_TEXTURE_H_ */
189