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 #ifdef HAVE_CONFIG_H
26 #include "config.h"
27 #endif
28 #include <stdio.h>
29 #include <stdlib.h>
30 #include <stddef.h>
31 #include <string.h>
32 #include <va/va.h>
33 #include "va_display.h"
34
35 extern const VADisplayHooks va_display_hooks_android;
36 extern const VADisplayHooks va_display_hooks_wayland;
37 extern const VADisplayHooks va_display_hooks_x11;
38 extern const VADisplayHooks va_display_hooks_drm;
39 extern const VADisplayHooks va_display_hooks_win32;
40
41 static const VADisplayHooks *g_display_hooks;
42 static const VADisplayHooks *g_display_hooks_available[] = {
43 #ifdef HAVE_VA_WIN32
44 &va_display_hooks_win32,
45 #endif
46 #ifdef HAVE_VA_WAYLAND
47 &va_display_hooks_wayland,
48 #endif
49 #ifdef HAVE_VA_X11
50 &va_display_hooks_x11,
51 #endif
52 #ifdef HAVE_VA_DRM
53 &va_display_hooks_drm,
54 #endif
55 NULL};
56
57 static const char *g_display_name;
58 const char *g_device_name;
59
60 static const char *
get_display_name(int argc,char * argv[])61 get_display_name(int argc, char *argv[])
62 {
63 const char *display_name = NULL;
64 int i;
65
66 for (i = 1; i < argc; i++) {
67 if (strcmp(argv[i], "--display") != 0)
68 continue;
69 argv[i] = NULL;
70
71 if (++i < argc) {
72 display_name = argv[i];
73 argv[i] = NULL;
74 }
75 }
76 return display_name;
77 }
78
79 static const char *
get_device_name(int argc,char * argv[])80 get_device_name(int argc, char *argv[])
81 {
82 const char *device_name = NULL;
83 int i;
84
85 for (i = 1; i < argc; i++) {
86 if (argv[i] && (strcmp(argv[i], "--device") != 0))
87 continue;
88 argv[i] = NULL;
89
90 if (++i < argc) {
91 device_name = argv[i];
92 argv[i] = NULL;
93 }
94 }
95 return device_name;
96 }
97
98 static void
print_display_names(void)99 print_display_names(void)
100 {
101 const VADisplayHooks **h;
102
103 printf("Available displays:\n");
104 for (h = g_display_hooks_available; *h != NULL; h++)
105 printf(" %s\n", (*h)->name);
106 }
107
108 static void
sanitize_args(int * argc,char * argv[])109 sanitize_args(int *argc, char *argv[])
110 {
111 char **out_args = argv;
112 int i, n = *argc;
113
114 for (i = 0; i < n; i++) {
115 if (argv[i])
116 *out_args++ = argv[i];
117 }
118 *out_args = NULL;
119 *argc = out_args - argv;
120 }
121
122 void
va_init_display_args(int * argc,char * argv[])123 va_init_display_args(int *argc, char *argv[])
124 {
125 const char *display_name;
126
127 display_name = get_display_name(*argc, argv);
128 if (display_name && strcmp(display_name, "help") == 0) {
129 print_display_names();
130 exit(0);
131 }
132 g_display_name = display_name;
133
134 if (g_display_name &&
135 ((strcmp(g_display_name, "drm") == 0)
136 || (strcmp(g_display_name, "win32") == 0)))
137 g_device_name = get_device_name(*argc, argv);
138
139 sanitize_args(argc, argv);
140 }
141
142 VADisplay
va_open_display(void)143 va_open_display(void)
144 {
145 VADisplay va_dpy = NULL;
146 unsigned int i;
147
148 for (i = 0; !va_dpy && g_display_hooks_available[i]; i++) {
149 g_display_hooks = g_display_hooks_available[i];
150 if (g_display_name &&
151 strcmp(g_display_name, g_display_hooks->name) != 0)
152 continue;
153 if (!g_display_hooks->open_display)
154 continue;
155 printf("Trying display: %s\n", g_display_hooks->name);
156 va_dpy = g_display_hooks->open_display();
157 }
158
159 if (!va_dpy) {
160 fprintf(stderr, "error: failed to initialize display");
161 if (g_display_name)
162 fprintf(stderr, " '%s'", g_display_name);
163 fprintf(stderr, "\n");
164 exit(1);
165 }
166 return va_dpy;
167 }
168
169 void
va_close_display(VADisplay va_dpy)170 va_close_display(VADisplay va_dpy)
171 {
172 if (!va_dpy)
173 return;
174
175 if (g_display_hooks && g_display_hooks->close_display)
176 g_display_hooks->close_display(va_dpy);
177 }
178
179 VAStatus
va_put_surface(VADisplay va_dpy,VASurfaceID surface,const VARectangle * src_rect,const VARectangle * dst_rect)180 va_put_surface(
181 VADisplay va_dpy,
182 VASurfaceID surface,
183 const VARectangle *src_rect,
184 const VARectangle *dst_rect
185 )
186 {
187 if (!va_dpy)
188 return VA_STATUS_ERROR_INVALID_DISPLAY;
189
190 if (g_display_hooks && g_display_hooks->put_surface)
191 return g_display_hooks->put_surface(va_dpy, surface, src_rect, dst_rect);
192 return VA_STATUS_ERROR_UNIMPLEMENTED;
193 }
194
195 void
va_print_display_options(FILE * stream)196 va_print_display_options(FILE *stream)
197 {
198 fprintf(stream, "Display options:\n");
199 fprintf(stream, "\t--display display | help Show information for the specified display, or the available display list \n");
200 fprintf(stream, "\t--device device Set device name, only available under drm and win32 displays\n");
201 }
202