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_texture.h"
34 #include "freedreno_resource.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 saturate_s, saturate_t, saturate_r;
43 bool needs_border;
44 uint16_t seqno;
45 };
46
47 static inline struct fd6_sampler_stateobj *
fd6_sampler_stateobj(struct pipe_sampler_state * samp)48 fd6_sampler_stateobj(struct pipe_sampler_state *samp)
49 {
50 return (struct fd6_sampler_stateobj *)samp;
51 }
52
53 struct fd6_pipe_sampler_view {
54 struct pipe_sampler_view base;
55 uint32_t texconst0, texconst1, texconst2, texconst3, texconst5;
56 uint32_t texconst6, texconst7, texconst8, texconst9, texconst10, texconst11;
57 uint32_t offset1, offset2;
58 struct fd_resource *ptr1, *ptr2;
59 uint16_t seqno;
60 };
61
62 static inline struct fd6_pipe_sampler_view *
fd6_pipe_sampler_view(struct pipe_sampler_view * pview)63 fd6_pipe_sampler_view(struct pipe_sampler_view *pview)
64 {
65 return (struct fd6_pipe_sampler_view *)pview;
66 }
67
68 void fd6_texture_init(struct pipe_context *pctx);
69 void fd6_texture_fini(struct pipe_context *pctx);
70
71 static inline enum a6xx_tex_type
fd6_tex_type(unsigned target)72 fd6_tex_type(unsigned target)
73 {
74 switch (target) {
75 default:
76 assert(0);
77 case PIPE_BUFFER:
78 case PIPE_TEXTURE_1D:
79 case PIPE_TEXTURE_1D_ARRAY:
80 return A6XX_TEX_1D;
81 case PIPE_TEXTURE_RECT:
82 case PIPE_TEXTURE_2D:
83 case PIPE_TEXTURE_2D_ARRAY:
84 return A6XX_TEX_2D;
85 case PIPE_TEXTURE_3D:
86 return A6XX_TEX_3D;
87 case PIPE_TEXTURE_CUBE:
88 case PIPE_TEXTURE_CUBE_ARRAY:
89 return A6XX_TEX_CUBE;
90 }
91 }
92
93 static inline unsigned
fd6_border_color_offset(struct fd_context * ctx,enum pipe_shader_type type,struct fd_texture_stateobj * tex)94 fd6_border_color_offset(struct fd_context *ctx, enum pipe_shader_type type,
95 struct fd_texture_stateobj *tex)
96 {
97 /* Currently we put the FS border-color state after VS. Possibly
98 * we could swap the order.
99 *
100 * This will need update for HS/DS/GS
101 */
102 if (type != PIPE_SHADER_FRAGMENT)
103 return 0;
104
105 unsigned needs_border = false;
106
107 for (unsigned i = 0; i < tex->num_samplers; i++) {
108 if (!tex->samplers[i])
109 continue;
110
111 struct fd6_sampler_stateobj *sampler =
112 fd6_sampler_stateobj(tex->samplers[i]);
113
114 needs_border |= sampler->needs_border;
115 }
116
117 if (!needs_border)
118 return 0;
119
120 return ctx->tex[PIPE_SHADER_VERTEX].num_samplers;
121 }
122
123 /*
124 * Texture stateobj:
125 *
126 * The sampler and sampler-view state is mapped to a single hardware
127 * stateobj which can be emit'd as a pointer in a CP_SET_DRAW_STATE
128 * packet, to avoid the overhead of re-generating the entire cmdstream
129 * when application toggles thru multiple different texture states.
130 */
131
132 struct fd6_texture_key {
133 struct {
134 /* We need to track the seqno of the rsc as well as of the
135 * sampler view, because resource shadowing/etc can result
136 * that the underlying bo changes (which means the previous
137 * state was no longer valid.
138 */
139 uint16_t rsc_seqno;
140 uint16_t seqno;
141 } view[16];
142 struct {
143 uint16_t seqno;
144 } samp[16];
145 uint8_t type;
146 uint8_t bcolor_offset;
147 };
148
149 struct fd6_texture_state {
150 struct fd6_texture_key key;
151 struct fd_ringbuffer *stateobj;
152 bool needs_border;
153 };
154
155 struct fd6_texture_state * fd6_texture_state(struct fd_context *ctx,
156 enum pipe_shader_type type, struct fd_texture_stateobj *tex);
157
158 #endif /* FD6_TEXTURE_H_ */
159