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_screen.h"
28#include "util/format/u_format.h"
29
30#include "fd2_context.h"
31#include "fd2_emit.h"
32#include "fd2_resource.h"
33#include "fd2_screen.h"
34#include "fd2_util.h"
35
36static bool
37fd2_screen_is_format_supported(struct pipe_screen *pscreen,
38                               enum pipe_format format,
39                               enum pipe_texture_target target,
40                               unsigned sample_count,
41                               unsigned storage_sample_count, unsigned usage)
42{
43   unsigned retval = 0;
44
45   if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
46       (sample_count > 1)) { /* TODO add MSAA */
47      DBG("not supported: format=%s, target=%d, sample_count=%d, usage=%x",
48          util_format_name(format), target, sample_count, usage);
49      return false;
50   }
51
52   if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
53      return false;
54
55   if ((usage & PIPE_BIND_RENDER_TARGET) &&
56       fd2_pipe2color(format) != (enum a2xx_colorformatx) ~0) {
57      retval |= PIPE_BIND_RENDER_TARGET;
58   }
59
60   if ((usage & (PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_VERTEX_BUFFER)) &&
61       !util_format_is_srgb(format) && !util_format_is_pure_integer(format) &&
62       fd2_pipe2surface(format).format != FMT_INVALID) {
63      retval |= usage & PIPE_BIND_VERTEX_BUFFER;
64      /* the only npot blocksize supported texture format is R32G32B32_FLOAT */
65      if (util_is_power_of_two_or_zero(util_format_get_blocksize(format)) ||
66          format == PIPE_FORMAT_R32G32B32_FLOAT)
67         retval |= usage & PIPE_BIND_SAMPLER_VIEW;
68   }
69
70   if ((usage & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DISPLAY_TARGET |
71                 PIPE_BIND_SCANOUT | PIPE_BIND_SHARED)) &&
72       (fd2_pipe2color(format) != (enum a2xx_colorformatx) ~0)) {
73      retval |= usage & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_DISPLAY_TARGET |
74                         PIPE_BIND_SCANOUT | PIPE_BIND_SHARED);
75   }
76
77   if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
78       (fd_pipe2depth(format) != (enum adreno_rb_depth_format) ~0)) {
79      retval |= PIPE_BIND_DEPTH_STENCIL;
80   }
81
82   if ((usage & PIPE_BIND_INDEX_BUFFER) &&
83       (fd_pipe2index(format) != (enum pc_di_index_size) ~0)) {
84      retval |= PIPE_BIND_INDEX_BUFFER;
85   }
86
87   if (retval != usage) {
88      DBG("not supported: format=%s, target=%d, sample_count=%d, "
89          "usage=%x, retval=%x",
90          util_format_name(format), target, sample_count, usage, retval);
91   }
92
93   return retval == usage;
94}
95
96/* clang-format off */
97static const enum pc_di_primtype a22x_primtypes[PIPE_PRIM_MAX] = {
98   [PIPE_PRIM_POINTS]         = DI_PT_POINTLIST_PSIZE,
99   [PIPE_PRIM_LINES]          = DI_PT_LINELIST,
100   [PIPE_PRIM_LINE_STRIP]     = DI_PT_LINESTRIP,
101   [PIPE_PRIM_LINE_LOOP]      = DI_PT_LINELOOP,
102   [PIPE_PRIM_TRIANGLES]      = DI_PT_TRILIST,
103   [PIPE_PRIM_TRIANGLE_STRIP] = DI_PT_TRISTRIP,
104   [PIPE_PRIM_TRIANGLE_FAN]   = DI_PT_TRIFAN,
105};
106
107static const enum pc_di_primtype a20x_primtypes[PIPE_PRIM_MAX] = {
108   [PIPE_PRIM_POINTS]         = DI_PT_POINTLIST_PSIZE,
109   [PIPE_PRIM_LINES]          = DI_PT_LINELIST,
110   [PIPE_PRIM_LINE_STRIP]     = DI_PT_LINESTRIP,
111   [PIPE_PRIM_TRIANGLES]      = DI_PT_TRILIST,
112   [PIPE_PRIM_TRIANGLE_STRIP] = DI_PT_TRISTRIP,
113   [PIPE_PRIM_TRIANGLE_FAN]   = DI_PT_TRIFAN,
114};
115/* clang-format on */
116
117void
118fd2_screen_init(struct pipe_screen *pscreen)
119{
120   struct fd_screen *screen = fd_screen(pscreen);
121
122   screen->max_rts = 1;
123   pscreen->context_create = fd2_context_create;
124   pscreen->is_format_supported = fd2_screen_is_format_supported;
125
126   screen->setup_slices = fd2_setup_slices;
127   if (FD_DBG(TTILE))
128      screen->tile_mode = fd2_tile_mode;
129
130   fd2_emit_init_screen(pscreen);
131
132   if (screen->gpu_id >= 220) {
133      screen->primtypes = a22x_primtypes;
134   } else {
135      screen->primtypes = a20x_primtypes;
136   }
137}
138