1 /* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
2
3 /*
4 * Copyright (C) 2012 Rob Clark <robclark@freedesktop.org>
5 *
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:
12 *
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
15 * Software.
16 *
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
23 * SOFTWARE.
24 *
25 * Authors:
26 * Rob Clark <robclark@freedesktop.org>
27 */
28
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
34 #include "freedreno_texture.h"
35 #include "freedreno_context.h"
36 #include "freedreno_util.h"
37
38 static void
fd_sampler_state_delete(struct pipe_context * pctx,void * hwcso)39 fd_sampler_state_delete(struct pipe_context *pctx, void *hwcso)
40 {
41 FREE(hwcso);
42 }
43
44 static void
fd_sampler_view_destroy(struct pipe_context * pctx,struct pipe_sampler_view * view)45 fd_sampler_view_destroy(struct pipe_context *pctx,
46 struct pipe_sampler_view *view)
47 {
48 pipe_resource_reference(&view->texture, NULL);
49 FREE(view);
50 }
51
bind_sampler_states(struct fd_texture_stateobj * tex,unsigned start,unsigned nr,void ** hwcso)52 static void bind_sampler_states(struct fd_texture_stateobj *tex,
53 unsigned start, unsigned nr, void **hwcso)
54 {
55 unsigned i;
56
57 for (i = 0; i < nr; i++) {
58 unsigned p = i + start;
59 tex->samplers[p] = hwcso[i];
60 if (tex->samplers[p])
61 tex->valid_samplers |= (1 << p);
62 else
63 tex->valid_samplers &= ~(1 << p);
64 }
65
66 tex->num_samplers = util_last_bit(tex->valid_samplers);
67 }
68
set_sampler_views(struct fd_texture_stateobj * tex,unsigned start,unsigned nr,struct pipe_sampler_view ** views)69 static void set_sampler_views(struct fd_texture_stateobj *tex,
70 unsigned start, unsigned nr, struct pipe_sampler_view **views)
71 {
72 unsigned i;
73
74 for (i = 0; i < nr; i++) {
75 struct pipe_sampler_view *view = views ? views[i] : NULL;
76 unsigned p = i + start;
77 pipe_sampler_view_reference(&tex->textures[p], view);
78 if (tex->textures[p])
79 tex->valid_textures |= (1 << p);
80 else
81 tex->valid_textures &= ~(1 << p);
82 }
83
84 tex->num_textures = util_last_bit(tex->valid_textures);
85 }
86
87 void
fd_sampler_states_bind(struct pipe_context * pctx,enum pipe_shader_type shader,unsigned start,unsigned nr,void ** hwcso)88 fd_sampler_states_bind(struct pipe_context *pctx,
89 enum pipe_shader_type shader, unsigned start,
90 unsigned nr, void **hwcso)
91 {
92 struct fd_context *ctx = fd_context(pctx);
93
94 bind_sampler_states(&ctx->tex[shader], start, nr, hwcso);
95 ctx->dirty_shader[shader] |= FD_DIRTY_SHADER_TEX;
96 ctx->dirty |= FD_DIRTY_TEX;
97 }
98
99 void
fd_set_sampler_views(struct pipe_context * pctx,enum pipe_shader_type shader,unsigned start,unsigned nr,struct pipe_sampler_view ** views)100 fd_set_sampler_views(struct pipe_context *pctx, enum pipe_shader_type shader,
101 unsigned start, unsigned nr,
102 struct pipe_sampler_view **views)
103 {
104 struct fd_context *ctx = fd_context(pctx);
105
106 set_sampler_views(&ctx->tex[shader], start, nr, views);
107 ctx->dirty_shader[shader] |= FD_DIRTY_SHADER_TEX;
108 ctx->dirty |= FD_DIRTY_TEX;
109 }
110
111 void
fd_texture_init(struct pipe_context * pctx)112 fd_texture_init(struct pipe_context *pctx)
113 {
114 pctx->delete_sampler_state = fd_sampler_state_delete;
115
116 pctx->sampler_view_destroy = fd_sampler_view_destroy;
117 }
118
119 /* helper for setting up border-color buffer for a3xx/a4xx: */
120 void
fd_setup_border_colors(struct fd_texture_stateobj * tex,void * ptr,unsigned offset)121 fd_setup_border_colors(struct fd_texture_stateobj *tex, void *ptr,
122 unsigned offset)
123 {
124 unsigned i, j;
125
126 for (i = 0; i < tex->num_samplers; i++) {
127 struct pipe_sampler_state *sampler = tex->samplers[i];
128 uint16_t *bcolor = (uint16_t *)((uint8_t *)ptr +
129 (BORDERCOLOR_SIZE * offset) +
130 (BORDERCOLOR_SIZE * i));
131 uint32_t *bcolor32 = (uint32_t *)&bcolor[16];
132
133 if (!sampler)
134 continue;
135
136 /*
137 * XXX HACK ALERT XXX
138 *
139 * The border colors need to be swizzled in a particular
140 * format-dependent order. Even though samplers don't know about
141 * formats, we can assume that with a GL state tracker, there's a
142 * 1:1 correspondence between sampler and texture. Take advantage
143 * of that knowledge.
144 */
145 if (i < tex->num_textures && tex->textures[i]) {
146 const struct util_format_description *desc =
147 util_format_description(tex->textures[i]->format);
148 for (j = 0; j < 4; j++) {
149 if (desc->swizzle[j] >= 4)
150 continue;
151
152 const struct util_format_channel_description *chan =
153 &desc->channel[desc->swizzle[j]];
154 if (chan->pure_integer) {
155 bcolor32[desc->swizzle[j] + 4] = sampler->border_color.i[j];
156 bcolor[desc->swizzle[j] + 8] = sampler->border_color.i[j];
157 } else {
158 bcolor32[desc->swizzle[j]] = fui(sampler->border_color.f[j]);
159 bcolor[desc->swizzle[j]] =
160 util_float_to_half(sampler->border_color.f[j]);
161 }
162 }
163 }
164 }
165 }
166