[筆記]Code::Blocks編譯Allegro 5.0.6程式

IDE: Code::Blocks 10.05
編譯器: TDM GCC 4.6.1

以下教學是讓GCC以Static Build編譯Allegro程式，因為我覺得Static Build比較好
如偏好Dynamic Build可直接看官方wiki教學 (Static和Dynamic比較)

本文撰寫時最新穩定版為5.0.6 如官網有更新請使用最新版
 


先安裝TDM GCC4.6.1

安裝完畢後，到Allegro官網下載MinGW 4.6.1 (TDM)版Binaries (檔名allegro-5.0.6-mingw-4.6.1-tdm.7z)
下載後打開壓縮檔，將include資料夾丟到MinGW主錄錄中
而lib裡複製以下檔案尾巴是-static-mt.a的19個檔案:

liballegro_acodec-5.0.6-static-mt.a
liballegro_audio-5.0.6-static-mt.a
liballegro_color-5.0.6-static-mt.a
liballegro_dialog-5.0.6-static-mt.a
liballegro_font-5.0.6-static-mt.a
liballegro_image-5.0.6-static-mt.a
liballegro_memfile-5.0.6-static-mt.a
liballegro_physfs-5.0.6-static-mt.a
liballegro_primitives-5.0.6-static-mt.a
liballegro_ttf-5.0.6-static-mt.a
liballegro-5.0.6-monolith-static-mt.a
liballegro-5.0.6-static-mt.a
libdumb-0.9.3-static-mt.a
libFLAC-1.2.1-static-mt.a
libfreetype-2.4.8-static-mt.a
libogg-1.2.1-static-mt.a
libvorbis-1.3.2-static-mt.a
libvorbisfile-1.3.2-static-mt.a
libzlib-1.2.5-static-mt.a
也可以另外開新資料夾放這些檔案
例如我是放在(MinGW目錄)\lib\allegro5

接著開啟Code::Blocks，開新專案，類型選擇Console Application
剩下的部份視需要自行設定

引入Allegro函式庫方法
專案建好後，進入專案的Properties(左邊專案按右鍵)
選Built Targets→Build Options
左邊樹狀目錄點一下最上面的專案名稱，選Linker Setings

左邊的Link Libraries選擇Add，將下列字串貼到路徑欄:
(安裝目錄不同自己用記事本取代修改)
C:\MinGW32\lib\liballegro-5.0.6-monolith-static-mt.a;C:\MinGW32\lib\liballegro-5.0.6-static-mt.a;C:\MinGW32\lib\liballegro_acodec-5.0.6-static-mt.a;C:\MinGW32\lib\liballegro_audio-5.0.6-static-mt.a;C:\MinGW32\lib\libvorbisfile-1.3.2-static-mt.a;C:\MinGW32\lib\libvorbis-1.3.2-static-mt.a;C:\MinGW32\lib\liballegro_color-5.0.6-static-mt.a;C:\MinGW32\lib\liballegro_dialog-5.0.6-static-mt.a;C:\MinGW32\lib\liballegro_font-5.0.6-static-mt.a;C:\MinGW32\lib\liballegro_image-5.0.6-static-mt.a;C:\MinGW32\lib\liballegro_memfile-5.0.6-static-mt.a;C:\MinGW32\lib\liballegro_physfs-5.0.6-static-mt.a;C:\MinGW32\lib\liballegro_primitives-5.0.6-static-mt.a;C:\MinGW32\lib\liballegro_ttf-5.0.6-static-mt.a;C:\MinGW32\lib\libdumb-0.9.3-static-mt.a;C:\MinGW32\lib\libFLAC-1.2.1-static-mt.a;C:\MinGW32\lib\libfreetype-2.4.8-static-mt.a;C:\MinGW32\lib\libogg-1.2.1-static-mt.a;C:\MinGW32\lib\libzlib-1.2.5-static-mt.a;
再選一次Add，貼上下列字串到路徑欄裡:
(安裝目錄不同自己用記事本取代修改)
C:\MinGW32\lib\libgdiplus.a;C:\MinGW32\lib\libuuid.a;C:\MinGW32\lib\libkernel32.a;C:\MinGW32\lib\libwinmm.a;C:\MinGW32\lib\libpsapi.a;C:\MinGW32\lib\libopengl32.a;C:\MinGW32\lib\libglu32.a;C:\MinGW32\lib\libuser32.a;C:\MinGW32\lib\libcomdlg32.a;C:\MinGW32\lib\libgdi32.a;C:\MinGW32\lib\libshell32.a;C:\MinGW32\lib\libole32.a;C:\MinGW32\lib\libadvapi32.a;C:\MinGW32\lib\libws2_32.a;C:\MinGW32\lib\libshlwapi.a

確定後儲存專案即可編寫Allegro 5.0.6程式
範例程式:
#include <stdio.h>
#include <allegro5/allegro.h>

const float FPS = 60;
const int SCREEN_W = 640;
const int SCREEN_H = 480;
const int BOUNCER_SIZE = 32;

int main(int argc, char **argv){
   ALLEGRO_DISPLAY *display = NULL;
   ALLEGRO_EVENT_QUEUE *event_queue = NULL;
   ALLEGRO_TIMER *timer = NULL;
   ALLEGRO_BITMAP *bouncer = NULL;
   float bouncer_x = SCREEN_W / 2.0 - BOUNCER_SIZE / 2.0;
   float bouncer_y = SCREEN_H / 2.0 - BOUNCER_SIZE / 2.0;
   float bouncer_dx = -4.0, bouncer_dy = 4.0;
   bool redraw = true;

   if(!al_init()) {
      fprintf(stderr, "failed to initialize allegro!\n");
      return -1;
   }

   timer = al_create_timer(1.0 / FPS);
   if(!timer) {
      fprintf(stderr, "failed to create timer!\n");
      return -1;
   }

   display = al_create_display(SCREEN_W, SCREEN_H);
   if(!display) {
      fprintf(stderr, "failed to create display!\n");
      al_destroy_timer(timer);
      return -1;
   }

   bouncer = al_create_bitmap(BOUNCER_SIZE, BOUNCER_SIZE);
   if(!bouncer) {
      fprintf(stderr, "failed to create bouncer bitmap!\n");
      al_destroy_display(display);
      al_destroy_timer(timer);
      return -1;
   }

   al_set_target_bitmap(bouncer);

   al_clear_to_color(al_map_rgb(255, 0, 255));

   al_set_target_bitmap(al_get_backbuffer(display));

   event_queue = al_create_event_queue();
   if(!event_queue) {
      fprintf(stderr, "failed to create event_queue!\n");
      al_destroy_bitmap(bouncer);
      al_destroy_display(display);
      al_destroy_timer(timer);
      return -1;
   }

   al_register_event_source(event_queue, al_get_display_event_source(display));

   al_register_event_source(event_queue, al_get_timer_event_source(timer));

   al_clear_to_color(al_map_rgb(0,0,0));

   al_flip_display();

   al_start_timer(timer);

   while(1)
   {
      ALLEGRO_EVENT ev;
      al_wait_for_event(event_queue, &ev);

      if(ev.type == ALLEGRO_EVENT_TIMER) {
         if(bouncer_x < 0 || bouncer_x > SCREEN_W - BOUNCER_SIZE) {
            bouncer_dx = -bouncer_dx;
         }

         if(bouncer_y < 0 || bouncer_y > SCREEN_H - BOUNCER_SIZE) {
            bouncer_dy = -bouncer_dy;
         }

         bouncer_x += bouncer_dx;
         bouncer_y += bouncer_dy;

         redraw = true;
      }
      else if(ev.type == ALLEGRO_EVENT_DISPLAY_CLOSE) {
         break;
      }

      if(redraw && al_is_event_queue_empty(event_queue)) {
         redraw = false;

         al_clear_to_color(al_map_rgb(0,0,0));

         al_draw_bitmap(bouncer, bouncer_x, bouncer_y, 0);

         al_flip_display();
      }
   }

   al_destroy_bitmap(bouncer);
   al_destroy_timer(timer);
   al_destroy_display(display);
   al_destroy_event_queue(event_queue);

   return 0;
}

參考資料:http://wiki.allegro.cc/index.php?title=Windows_Vista,_Code::Blocks_10.05_and_Allegro_5
http://wiki.allegro.cc/index.php?title=Allegro_5_Tutorial/Bitmaps