backends/virtual/tdm_virtual.c

   1 #ifdef HAVE_CONFIG_H
   2 #include "config.h"
   3 #endif
   4
   5 #include "tdm_virtual.h"
   6
   7 static tdm_virtual_data *virtual_data;
   8
   9 void
  10 tdm_virtual_deinit(tdm_backend_data *bdata)
  11 {
  12         if (virtual_data != bdata)
  13                 return;
  14
  15         TDM_INFO("deinit");
  16
  17         tdm_virtual_display_destroy_output_list(virtual_data);
  18
  19         if (virtual_data->pipe[0] >= 0)
  20                 close(virtual_data->pipe[0]);
  21         if (virtual_data->pipe[1] >= 0)
  22                 close(virtual_data->pipe[1]);
  23
  24         free(virtual_data);
  25         virtual_data = NULL;
  26 }
  27
  28 tdm_backend_data *
  29 tdm_virtual_init(tdm_display *dpy, tdm_error *error)
  30 {
  31         tdm_func_display virtual_func_display;
  32         tdm_func_output virtual_func_output;
  33         tdm_func_layer virtual_func_layer;
  34         tdm_error ret;
  35
  36         if (!dpy) {
  37                 TDM_ERR("display is null");
  38                 if (error)
  39                         *error = TDM_ERROR_INVALID_PARAMETER;
  40                 return NULL;
  41         }
  42
  43         if (virtual_data) {
  44                 TDM_ERR("failed: init twice");
  45                 if (error)
  46                         *error = TDM_ERROR_BAD_REQUEST;
  47                 return NULL;
  48         }
  49
  50         virtual_data = calloc(1, sizeof(tdm_virtual_data));
  51         if (!virtual_data) {
  52                 TDM_ERR("alloc failed");
  53                 if (error)
  54                         *error = TDM_ERROR_OUT_OF_MEMORY;
  55                 return NULL;
  56         }
  57
  58         LIST_INITHEAD(&virtual_data->output_list);
  59         LIST_INITHEAD(&virtual_data->buffer_list);
  60
  61         memset(&virtual_func_display, 0, sizeof(virtual_func_display));
  62         virtual_func_display.display_get_capability = virtual_display_get_capability;
  63         virtual_func_display.display_get_outputs = virtual_display_get_outputs;
  64         virtual_func_display.display_get_fd = virtual_display_get_fd;
  65         virtual_func_display.display_handle_events = virtual_display_handle_events;
  66         virtual_func_display.display_output_create = virtual_display_output_create;
  67         virtual_func_display.display_output_destroy = virtual_display_output_destroy;
  68
  69         memset(&virtual_func_output, 0, sizeof(virtual_func_output));
  70         virtual_func_output.output_get_capability = virtual_output_get_capability;
  71         virtual_func_output.output_get_layers = virtual_output_get_layers;
  72         virtual_func_output.output_wait_vblank = virtual_output_wait_vblank;
  73         virtual_func_output.output_set_vblank_handler = virtual_output_set_vblank_handler;
  74         virtual_func_output.output_commit = virtual_output_commit;
  75         virtual_func_output.output_set_commit_handler = virtual_output_set_commit_handler;
  76         virtual_func_output.output_set_mode = virtual_output_set_mode;
  77         virtual_func_output.output_get_mode = virtual_output_get_mode;
  78
  79         memset(&virtual_func_layer, 0, sizeof(virtual_func_layer));
  80         virtual_func_layer.layer_get_capability = virtual_layer_get_capability;
  81         virtual_func_layer.layer_set_info = virtual_layer_set_info;
  82         virtual_func_layer.layer_get_info = virtual_layer_get_info;
  83         virtual_func_layer.layer_set_buffer = virtual_layer_set_buffer;
  84         virtual_func_layer.layer_unset_buffer = virtual_layer_unset_buffer;
  85
  86         ret = tdm_backend_register_func_display(dpy, &virtual_func_display);
  87         if (ret != TDM_ERROR_NONE)
  88                 goto failed;
  89
  90         ret = tdm_backend_register_func_output(dpy, &virtual_func_output);
  91         if (ret != TDM_ERROR_NONE)
  92                 goto failed;
  93
  94         ret = tdm_backend_register_func_layer(dpy, &virtual_func_layer);
  95         if (ret != TDM_ERROR_NONE)
  96                 goto failed;
  97
  98         virtual_data->dpy = dpy;
  99
 100         if (pipe(virtual_data->pipe) < 0) {
 101                 TDM_ERR("failed get pipe: %m");
 102                 ret = TDM_ERROR_OPERATION_FAILED;
 103                 goto failed;
 104         }
 105 #if 0
 106         ret = tdm_virtual_display_create_output_list(virtual_data);
 107         if (ret != TDM_ERROR_NONE)
 108                 goto failed;
 109
 110         ret = tdm_virtual_display_create_layer_list(virtual_data);
 111         if (ret != TDM_ERROR_NONE)
 112                 goto failed;
 113 #endif
 114         if (error)
 115                 *error = TDM_ERROR_NONE;
 116
 117         TDM_INFO("init success!");
 118
 119         return (tdm_backend_data *)virtual_data;
 120 failed:
 121         if (error)
 122                 *error = ret;
 123
 124         tdm_virtual_deinit(virtual_data);
 125
 126         TDM_ERR("init failed!");
 127         return NULL;
 128 }
 129
 130 tdm_backend_module tdm_backend_module_data = {
 131         "Virtual",
 132         "Samsung",
 133         TDM_BACKEND_SET_ABI_VERSION(1, 1),
 134         tdm_virtual_init,
 135         tdm_virtual_deinit
 136 };