1 /*
2 * Copyright 2014, 2015 Red Hat.
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 * on the rights to use, copy, modify, merge, publish, distribute, sub
8 * license, and/or sell copies of the Software, and to permit persons to whom
9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 */
23 #ifndef VIRGL_H
24 #define VIRGL_H
25
26 #include "pipe/p_screen.h"
27 #include "util/slab.h"
28 #include "util/disk_cache.h"
29 #include "virgl_winsys.h"
30 #include "compiler/nir/nir.h"
31
32 enum virgl_debug_flags {
33 VIRGL_DEBUG_VERBOSE = 1 << 0,
34 VIRGL_DEBUG_TGSI = 1 << 1,
35 VIRGL_DEBUG_NO_EMULATE_BGRA = 1 << 2,
36 VIRGL_DEBUG_NO_BGRA_DEST_SWIZZLE = 1 << 3,
37 VIRGL_DEBUG_SYNC = 1 << 4,
38 VIRGL_DEBUG_XFER = 1 << 5,
39 VIRGL_DEBUG_NO_COHERENT = 1 << 6,
40 VIRGL_DEBUG_USE_TGSI = 1 << 7,
41 VIRGL_DEBUG_L8_SRGB_ENABLE_READBACK = 1 << 8,
42 };
43
44 extern int virgl_debug;
45
46 struct virgl_screen {
47 struct pipe_screen base;
48
49 int refcnt;
50
51 /* place for winsys to stash it's own stuff: */
52 void *winsys_priv;
53
54 struct virgl_winsys *vws;
55
56 struct virgl_drm_caps caps;
57
58 struct slab_parent_pool transfer_pool;
59
60 uint32_t sub_ctx_id;
61 bool tweak_gles_emulate_bgra;
62 bool tweak_gles_apply_bgra_dest_swizzle;
63 bool tweak_l8_srgb_readback;
64 bool no_coherent;
65 int32_t tweak_gles_tf3_value;
66
67 nir_shader_compiler_options compiler_options;
68
69 struct disk_cache *disk_cache;
70 };
71
72
73 static inline struct virgl_screen *
virgl_screen(struct pipe_screen * pipe)74 virgl_screen(struct pipe_screen *pipe)
75 {
76 return (struct virgl_screen *)pipe;
77 }
78
79 bool
80 virgl_has_readback_format(struct pipe_screen *screen, enum virgl_formats fmt,
81 bool allow_tweak);
82
83 bool
84 virgl_has_scanout_format(struct virgl_screen *vscreen,
85 enum pipe_format format,
86 bool may_emulate_bgra);
87
88 /* GL_ARB_map_buffer_alignment requires 64 as the minimum alignment value. In
89 * addition to complying with the extension, a high enough alignment value is
90 * expected by various external GL clients. For example, wined3d doesn't like
91 * maps that don't have a 16 byte alignment.
92 */
93 #define VIRGL_MAP_BUFFER_ALIGNMENT 64
94
95 #endif
96