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 #include "virtio-gpu/virgl_protocol.h"
32
33 enum virgl_debug_flags {
34 VIRGL_DEBUG_VERBOSE = 1 << 0,
35 VIRGL_DEBUG_TGSI = 1 << 1,
36 VIRGL_DEBUG_NO_EMULATE_BGRA = 1 << 2,
37 VIRGL_DEBUG_NO_BGRA_DEST_SWIZZLE = 1 << 3,
38 VIRGL_DEBUG_SYNC = 1 << 4,
39 VIRGL_DEBUG_XFER = 1 << 5,
40 VIRGL_DEBUG_NO_COHERENT = 1 << 6,
41 VIRGL_DEBUG_L8_SRGB_ENABLE_READBACK = 1 << 8,
42 VIRGL_DEBUG_VIDEO = 1 << 9,
43 VIRGL_DEBUG_SHADER_SYNC = 1 << 10,
44 };
45
46 extern const struct debug_named_value virgl_debug_options[];
47 extern int virgl_debug;
48
49 struct virgl_screen {
50 struct pipe_screen base;
51
52 int refcnt;
53
54 /* place for winsys to stash it's own stuff: */
55 void *winsys_priv;
56
57 struct virgl_winsys *vws;
58
59 struct virgl_drm_caps caps;
60
61 struct slab_parent_pool transfer_pool;
62
63 uint32_t sub_ctx_id;
64 bool tweak_gles_emulate_bgra;
65 bool tweak_gles_apply_bgra_dest_swizzle;
66 bool tweak_l8_srgb_readback;
67 bool no_coherent;
68 bool shader_sync;
69 int32_t tweak_gles_tf3_value;
70
71 nir_shader_compiler_options compiler_options;
72
73 struct disk_cache *disk_cache;
74 };
75
76
77 static inline struct virgl_screen *
virgl_screen(struct pipe_screen * pipe)78 virgl_screen(struct pipe_screen *pipe)
79 {
80 return (struct virgl_screen *)pipe;
81 }
82
83 bool
84 virgl_has_readback_format(struct pipe_screen *screen, enum virgl_formats fmt,
85 bool allow_tweak);
86
87 bool
88 virgl_has_scanout_format(struct virgl_screen *vscreen,
89 enum pipe_format format,
90 bool may_emulate_bgra);
91
92 static inline enum virgl_shader_stage
virgl_shader_stage_convert(enum pipe_shader_type type)93 virgl_shader_stage_convert(enum pipe_shader_type type)
94 {
95 switch (type) {
96 case PIPE_SHADER_VERTEX:
97 return VIRGL_SHADER_VERTEX;
98 case PIPE_SHADER_TESS_CTRL:
99 return VIRGL_SHADER_TESS_CTRL;
100 case PIPE_SHADER_TESS_EVAL:
101 return VIRGL_SHADER_TESS_EVAL;
102 case PIPE_SHADER_GEOMETRY:
103 return VIRGL_SHADER_GEOMETRY;
104 case PIPE_SHADER_FRAGMENT:
105 return VIRGL_SHADER_FRAGMENT;
106 case PIPE_SHADER_COMPUTE:
107 return VIRGL_SHADER_COMPUTE;
108 default:
109 unreachable("virgl: unknown shader stage.\n");
110 }
111 }
112
113 /* GL_ARB_map_buffer_alignment requires 64 as the minimum alignment value. In
114 * addition to complying with the extension, a high enough alignment value is
115 * expected by various external GL clients. For example, wined3d doesn't like
116 * maps that don't have a 16 byte alignment.
117 */
118 #define VIRGL_MAP_BUFFER_ALIGNMENT 64
119
120 #endif
121