1 /*
2 * Copyright (c) 2012 Intel Corporation. All Rights Reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sub license, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the
13 * next paragraph) shall be included in all copies or substantial portions
14 * of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
19 * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
20 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
21 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
22 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25 #include "sysdeps.h"
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <stddef.h>
29 #include <string.h>
30 #include <va/va.h>
31 #include "va_display.h"
32
33 extern const VADisplayHooks va_display_hooks_android;
34 extern const VADisplayHooks va_display_hooks_wayland;
35 extern const VADisplayHooks va_display_hooks_x11;
36 extern const VADisplayHooks va_display_hooks_drm;
37
38 static const VADisplayHooks *g_display_hooks;
39 static const VADisplayHooks *g_display_hooks_available[] = {
40 #ifdef ANDROID
41 &va_display_hooks_android,
42 #else
43 #ifdef HAVE_VA_WAYLAND
44 &va_display_hooks_wayland,
45 #endif
46 #ifdef HAVE_VA_X11
47 &va_display_hooks_x11,
48 #endif
49 #ifdef HAVE_VA_DRM
50 &va_display_hooks_drm,
51 #endif
52 #endif
53 NULL
54 };
55
56 static const char *g_display_name;
57
58 static const char *
get_display_name(int argc,char * argv[])59 get_display_name(int argc, char *argv[])
60 {
61 const char *display_name = NULL;
62 int i;
63
64 for (i = 1; i < argc; i++) {
65 if (strcmp(argv[i], "--display") != 0)
66 continue;
67 argv[i] = NULL;
68
69 if (++i < argc) {
70 display_name = argv[i];
71 argv[i] = NULL;
72 }
73 }
74 return display_name;
75 }
76
77 static void
print_display_names(void)78 print_display_names(void)
79 {
80 const VADisplayHooks **h;
81
82 printf("Available displays:\n");
83 for (h = g_display_hooks_available; *h != NULL; h++)
84 printf(" %s\n", (*h)->name);
85 }
86
87 static void
sanitize_args(int * argc,char * argv[])88 sanitize_args(int *argc, char *argv[])
89 {
90 char **out_args = argv;
91 int i, n = *argc;
92
93 for (i = 0; i < n; i++) {
94 if (argv[i])
95 *out_args++ = argv[i];
96 }
97 *out_args = NULL;
98 *argc = out_args - argv;
99 }
100
101 void
va_init_display_args(int * argc,char * argv[])102 va_init_display_args(int *argc, char *argv[])
103 {
104 const char *display_name;
105
106 display_name = get_display_name(*argc, argv);
107 if (display_name && strcmp(display_name, "help") == 0) {
108 print_display_names();
109 exit(0);
110 }
111 g_display_name = display_name;
112
113 sanitize_args(argc, argv);
114 }
115
116 VADisplay
va_open_display(void)117 va_open_display(void)
118 {
119 VADisplay va_dpy = NULL;
120 unsigned int i;
121
122 for (i = 0; !va_dpy && g_display_hooks_available[i]; i++) {
123 g_display_hooks = g_display_hooks_available[i];
124 if (g_display_name &&
125 strcmp(g_display_name, g_display_hooks->name) != 0)
126 continue;
127 if (!g_display_hooks->open_display)
128 continue;
129 va_dpy = g_display_hooks->open_display();
130 }
131
132 if (!va_dpy) {
133 fprintf(stderr, "error: failed to initialize display");
134 if (g_display_name)
135 fprintf(stderr, " '%s'", g_display_name);
136 fprintf(stderr, "\n");
137 abort();
138 }
139 return va_dpy;
140 }
141
142 void
va_close_display(VADisplay va_dpy)143 va_close_display(VADisplay va_dpy)
144 {
145 if (!va_dpy)
146 return;
147
148 if (g_display_hooks && g_display_hooks->close_display)
149 g_display_hooks->close_display(va_dpy);
150 }
151
152 VAStatus
va_put_surface(VADisplay va_dpy,VASurfaceID surface,const VARectangle * src_rect,const VARectangle * dst_rect)153 va_put_surface(
154 VADisplay va_dpy,
155 VASurfaceID surface,
156 const VARectangle *src_rect,
157 const VARectangle *dst_rect
158 )
159 {
160 if (!va_dpy)
161 return VA_STATUS_ERROR_INVALID_DISPLAY;
162
163 if (g_display_hooks && g_display_hooks->put_surface)
164 return g_display_hooks->put_surface(va_dpy, surface, src_rect, dst_rect);
165 return VA_STATUS_ERROR_UNIMPLEMENTED;
166 }
167