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 * 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 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 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 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 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 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 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