1 /*
2  * Copyright © 2013 Keith Packard
3  *
4  * Permission to use, copy, modify, distribute, and sell this software and its
5  * documentation for any purpose is hereby granted without fee, provided that
6  * the above copyright notice appear in all copies and that both that copyright
7  * notice and this permission notice appear in supporting documentation, and
8  * that the name of the copyright holders not be used in advertising or
9  * publicity pertaining to distribution of the software without specific,
10  * written prior permission.  The copyright holders make no representations
11  * about the suitability of this software for any purpose.  It is provided "as
12  * is" without express or implied warranty.
13  *
14  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
20  * OF THIS SOFTWARE.
21  */
22 
23 /* This file was derived from dri2_priv.h which carries the following
24  * copyright:
25  *
26  * Copyright © 2008 Red Hat, Inc.
27  *
28  * Permission is hereby granted, free of charge, to any person obtaining a
29  * copy of this software and associated documentation files (the "Soft-
30  * ware"), to deal in the Software without restriction, including without
31  * limitation the rights to use, copy, modify, merge, publish, distribute,
32  * and/or sell copies of the Software, and to permit persons to whom the
33  * Software is furnished to do so, provided that the above copyright
34  * notice(s) and this permission notice appear in all copies of the Soft-
35  * ware and that both the above copyright notice(s) and this permission
36  * notice appear in supporting documentation.
37  *
38  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
39  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
40  * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
41  * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
42  * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
43  * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
44  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
45  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
46  * MANCE OF THIS SOFTWARE.
47  *
48  * Except as contained in this notice, the name of a copyright holder shall
49  * not be used in advertising or otherwise to promote the sale, use or
50  * other dealings in this Software without prior written authorization of
51  * the copyright holder.
52  *
53  * Authors:
54  *   Kristian Høgsberg (krh@redhat.com)
55  */
56 
57 #include <xcb/xcb.h>
58 #include <xcb/dri3.h>
59 #include <xcb/present.h>
60 #include <xcb/sync.h>
61 
62 #include "loader_dri3_helper.h"
63 
64 /* From driconf.h, user exposed so should be stable */
65 #define DRI_CONF_VBLANK_NEVER 0
66 #define DRI_CONF_VBLANK_DEF_INTERVAL_0 1
67 #define DRI_CONF_VBLANK_DEF_INTERVAL_1 2
68 #define DRI_CONF_VBLANK_ALWAYS_SYNC 3
69 
70 struct dri3_display
71 {
72    __GLXDRIdisplay base;
73 
74    const __DRIextension **loader_extensions;
75 
76    /* DRI3 bits */
77    int dri3Major;
78    int dri3Minor;
79 
80    /* Present bits */
81    int hasPresent;
82    int presentMajor;
83    int presentMinor;
84 };
85 
86 struct dri3_screen {
87    struct glx_screen base;
88 
89    __DRIscreen *driScreen;
90    __GLXDRIscreen vtable;
91 
92    /* DRI screen is created for display GPU in case of prime.
93     * This screen is used to allocate linear_buffer from
94     * display GPU space in dri3_alloc_render_buffer() function.
95     */
96    __DRIscreen *driScreenDisplayGPU;
97 
98    const __DRIimageExtension *image;
99    const __DRIimageDriverExtension *image_driver;
100    const __DRIcoreExtension *core;
101    const __DRI2flushExtension *f;
102    const __DRI2configQueryExtension *config;
103    const __DRItexBufferExtension *texBuffer;
104    const __DRI2rendererQueryExtension *rendererQuery;
105    const __DRI2interopExtension *interop;
106    const __DRIconfig **driver_configs;
107 
108    void *driver;
109    int fd;
110    bool is_different_gpu;
111    bool prefer_back_buffer_reuse;
112 
113    /* fd for display GPU in case of prime */
114    int fd_display_gpu;
115 
116    int show_fps_interval;
117 
118    struct loader_dri3_extensions loader_dri3_ext;
119 };
120 
121 struct dri3_context
122 {
123    struct glx_context base;
124    __DRIcontext *driContext;
125 };
126 
127 struct dri3_drawable {
128    __GLXDRIdrawable base;
129    struct loader_dri3_drawable loader_drawable;
130 
131    /* LIBGL_SHOW_FPS support */
132    uint64_t previous_ust;
133    unsigned frames;
134 };
135 
136 
137 _X_HIDDEN int
138 dri3_query_renderer_integer(struct glx_screen *base, int attribute,
139                             unsigned int *value);
140 
141 _X_HIDDEN int
142 dri3_query_renderer_string(struct glx_screen *base, int attribute,
143                            const char **value);
144 
145 _X_HIDDEN int
146 dri3_interop_query_device_info(struct glx_context *ctx,
147                                struct mesa_glinterop_device_info *out);
148 
149 _X_HIDDEN int
150 dri3_interop_export_object(struct glx_context *ctx,
151                            struct mesa_glinterop_export_in *in,
152                            struct mesa_glinterop_export_out *out);
153