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
  67         memset(&virtual_func_output, 0, sizeof(virtual_func_output));
  68         virtual_func_output.output_get_capability = virtual_output_get_capability;
  69         virtual_func_output.output_get_layers = virtual_output_get_layers;
  70         virtual_func_output.output_wait_vblank = virtual_output_wait_vblank;
  71         virtual_func_output.output_set_vblank_handler = virtual_output_set_vblank_handler;
  72         virtual_func_output.output_commit = virtual_output_commit;
  73         virtual_func_output.output_set_commit_handler = virtual_output_set_commit_handler;
  74         virtual_func_output.output_set_mode = virtual_output_set_mode;
  75         virtual_func_output.output_get_mode = virtual_output_get_mode;
  76
  77         memset(&virtual_func_layer, 0, sizeof(virtual_func_layer));
  78         virtual_func_layer.layer_get_capability = virtual_layer_get_capability;
  79         virtual_func_layer.layer_set_info = virtual_layer_set_info;
  80         virtual_func_layer.layer_get_info = virtual_layer_get_info;
  81         virtual_func_layer.layer_set_buffer = virtual_layer_set_buffer;
  82         virtual_func_layer.layer_unset_buffer = virtual_layer_unset_buffer;
  83
  84         ret = tdm_backend_register_func_display(dpy, &virtual_func_display);
  85         if (ret != TDM_ERROR_NONE)
  86                 goto failed;
  87
  88         ret = tdm_backend_register_func_output(dpy, &virtual_func_output);
  89         if (ret != TDM_ERROR_NONE)
  90                 goto failed;
  91
  92         ret = tdm_backend_register_func_layer(dpy, &virtual_func_layer);
  93         if (ret != TDM_ERROR_NONE)
  94                 goto failed;
  95
  96         virtual_data->dpy = dpy;
  97
  98         if (pipe(virtual_data->pipe) < 0) {
  99                 TDM_ERR("failed get pipe: %m");
 100                 ret = TDM_ERROR_OPERATION_FAILED;
 101                 goto failed;
 102         }
 103
 104         ret = tdm_virtual_display_create_output_list(virtual_data);
 105         if (ret != TDM_ERROR_NONE)
 106                 goto failed;
 107
 108         ret = tdm_virtual_display_create_layer_list(virtual_data);
 109         if (ret != TDM_ERROR_NONE)
 110                 goto failed;
 111
 112         if (error)
 113                 *error = TDM_ERROR_NONE;
 114
 115         TDM_INFO("init success!");
 116
 117         return (tdm_backend_data *)virtual_data;
 118 failed:
 119         if (error)
 120                 *error = ret;
 121
 122         tdm_virtual_deinit(virtual_data);
 123
 124         TDM_ERR("init failed!");
 125         return NULL;
 126 }
 127
 128 tdm_backend_module tdm_backend_module_data = {
 129         "Virtual",
 130         "Samsung",
 131         TDM_BACKEND_SET_ABI_VERSION(1, 1),
 132         tdm_virtual_init,
 133         tdm_virtual_deinit
 134 };