How can i solve it?(draw_bitmap)

no-reply@allegro.cc (foretion) — Thu, 04 Jul 2019 18:58:25 +0000

#SelectExpand
 1movement_character(user_player._player, pos_x+50, pos_y+50, player_direction, action_idx); // user_player._player is ALLEGRO_BITMAP* and initialized with al_load_bitmp(..);

#SelectExpand
  1void movement_character(ALLEGRO_BITMAP* bitmap, int dx, int dy, int action_type, int action_idx) {
al_set_target_bitmap(al_get_backbuffer(al_get_current_display()));
int sx = character_movement[action_type][action_idx][0] * 16;
int sy = character_movement[action_type][action_idx][1] * 16;
int sw = character_movement[action_type][action_idx][2] * 16;
int sh = character_movement[action_type][action_idx][3] * 16;
  7
//al_draw_bitmap_region(bitmap, sx, sy, sw, sh, dx, dy, 0);
ALLEGRO_COLOR tint = al_map_rgb(255, 255, 255);
al_draw_tinted_scaled_rotated_bitmap_region(bitmap, sx, sy, sw, sh, tint, 0, 0, dx, dy, GAME_SCALE, GAME_SCALE, 0, 0); // on error

i wrote code.
but show errors..

--------
Assertion failed!

Program: ...nts\projects\nginx\x64\Debug\allegro-debug-5.2.dll
File: C:\dev\allegro_winpkg\universal\all...\transfo...tions.c
Line: 32

Expression: src

For information on how your program can cause an assertion
failure, see the Visual C++ documentation on asserts
--------

what should i check?

no-reply@allegro.cc (Edgar Reynaldo) — Thu, 04 Jul 2019 19:06:00 +0000

For some reason your bitmap is NULL.

Make sure it loaded correctly, and that you're not destroying it early.

no-reply@allegro.cc (foretion) — Thu, 04 Jul 2019 19:10:53 +0000

#SelectExpand
  1void movement_character(ALLEGRO_BITMAP* bitmap, int dx, int dy, int action_type, int action_idx) {
  2  al_set_target_bitmap(al_get_backbuffer(al_get_current_display()));
  3  int sx = character_movement[action_type][action_idx][0] * 16;
  4  int sy = character_movement[action_type][action_idx][1] * 16;
  5  int sw = character_movement[action_type][action_idx][2] * 16;
  6  int sh = character_movement[action_type][action_idx][3] * 16;
  7
  8  //al_draw_bitmap_region(bitmap, sx, sy, sw, sh, dx, dy, 0);
  9  ALLEGRO_COLOR tint = al_map_rgb(255, 255, 255);
 10  al_draw_tinted_scaled_rotated_bitmap_region(al_load_bitmap("gfx/character.png"), sx, sy, sw, sh, tint, 0, 0, dx, dy, GAME_SCALE, GAME_SCALE, 0, 0); // direct al_load_bitmap
 11}

the same problem occurs in the this code.
and bitmap is not NULL

-----------
in main.c ( work )
movement_character(.....);

but,

in sock_client_framework.c ( error )
movement_character(.....);

no-reply@allegro.cc (Edgar Reynaldo) — Thu, 04 Jul 2019 19:28:07 +0000

Most likely you're using a shadowed variable instead of an extern one.

Show more code, like where you declare and define the bitmap objects.

EDIT
Wait, I didn't see the difference between code at first.

If the bitmap is NULL on loading, then you have a problem with the current working directory or filename.

no-reply@allegro.cc (foretion) — Thu, 04 Jul 2019 19:34:05 +0000

sock_client_framework.c

#SelectExpand
  1// receive packet . . .. 
  2else if (strcmp(ContentType, "PLAYER") == 0)
  {
    const char* userName = json_string_value(json_array_get(pData, 0));
    if (strcmp(user_player.cName, userName) == 0)
    {
      // get player data from jsonData
      const int action_type = json_integer_value(json_array_get(pData, 1));
      const int player_direction = json_integer_value(json_array_get(pData, 2));
      const int action_idx = json_integer_value(json_array_get(pData, 3));
      const int pos_x = json_integer_value(json_array_get(pData, 4));
      const int pos_y = json_integer_value(json_array_get(pData, 5));
      const int hp = json_integer_value(json_array_get(pData, 6));
      const int armor = json_integer_value(json_array_get(pData, 7));
      const int buf = json_integer_value(json_array_get(pData, 8));
 16
      ALLEGRO_BITMAP* user_bitmap = al_load_bitmap("gfx/character.png");
      //ALLEGRO_BITMAP* hit_efftect = al_load_bitmap("gfx/hit_effect.png");
 19
      movement_character(al_load_bitmap("gfx/character.png"), pos_x+50, pos_y+50, player_direction, action_idx);

on ERROR.

but main.c

#SelectExpand
 1user_player._player = al_load_bitmap("gfx/character.png");
 2// iPos_x, iPos_y .. other parameters initialized too.
 3movement_character(user_player._player, user_player.iPos_x, user_player.iPos_y, user_player.iPlayer_direction, user_player.iAction_idx);

worked.

and currently movement_character function in player.c

#SelectExpand
  1void movement_character(ALLEGRO_BITMAP* bitmap, int dx, int dy, int action_type, int action_idx) {
  2  al_set_target_bitmap(al_get_backbuffer(al_get_current_display()));
  3  int sx = character_movement[action_type][action_idx][0] * 16;
  4  int sy = character_movement[action_type][action_idx][1] * 16;
  5  int sw = character_movement[action_type][action_idx][2] * 16;
  6  int sh = character_movement[action_type][action_idx][3] * 16;
  7
  8  al_draw_bitmap_region(bitmap, sx, sy, sw, sh, dx, dy, 0);
  9  //ALLEGRO_COLOR tint = al_map_rgb(255, 255, 255);
 10  //al_draw_tinted_scaled_rotated_bitmap_region(bitmap, sx, sy, sw, sh, tint, 0, 0, dx, dy, GAME_SCALE, GAME_SCALE, 0, 0);
 11}

------------

so...Could this be a problem?

#SelectExpand
  1// receive packet . . .. 
  2else if (strcmp(ContentType, "PLAYER") == 0)
  {
    const char* userName = json_string_value(json_array_get(pData, 0));
    if (strcmp(user_player.cName, userName) == 0)
    {
      // get player data from jsonData
      const int action_type = json_integer_value(json_array_get(pData, 1));
      const int player_direction = json_integer_value(json_array_get(pData, 2));
      const int action_idx = json_integer_value(json_array_get(pData, 3));
      const int pos_x = json_integer_value(json_array_get(pData, 4));
      const int pos_y = json_integer_value(json_array_get(pData, 5));
      const int hp = json_integer_value(json_array_get(pData, 6));
      const int armor = json_integer_value(json_array_get(pData, 7));
      const int buf = json_integer_value(json_array_get(pData, 8));
 16
      ALLEGRO_BITMAP* user_bitmap = al_load_bitmap("gfx/character.png");
      //ALLEGRO_BITMAP* hit_efftect = al_load_bitmap("gfx/hit_effect.png");
 19
      movement_character(al_load_bitmap("gfx/character.png"), pos_x+50, pos_y+50, player_direction, action_idx);

code is in void __cdecl RecvThread(void* p);

and RecvThread called with beginthread.

#SelectExpand
 1_beginthread(RecvThread, 0, (void*)serv_sock);

no-reply@allegro.cc (Edgar Reynaldo) — Thu, 04 Jul 2019 20:50:02 +0000

Can you post a zip file of your source code and resources please?

It's failing an assertion inside transformations.c in al_copy_transform where the source transform is NULL.

I need to debug this to know exactly why.

I'm guessing it's something to do with threading and displays but I can't say for sure.

no-reply@allegro.cc (foretion) — Fri, 05 Jul 2019 06:28:05 +0000

Oh i solved that.

I fixed that implement Without Thread.

But i have other problem.....:(

no-reply@allegro.cc (Edgar Reynaldo) — Fri, 05 Jul 2019 11:19:31 +0000

You can make another post or you can just add it here.