Z-Pocket Game Pro(ZPG Pro)

libffb

---

libffb.c

#include <stdio.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdint.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <string.h>
#include <linux/fb.h>
#include <SDL.h>
#include <SDL_image.h>
#include <SDL_ttf.h>

#include "libffb.h"

static uint32_t sdl_w=0;
static uint32_t sdl_h=0;
static uint32_t sdl_bpp=0;
static SDL_Joystick *joy=NULL;
static SDL_Window *window=NULL;
static SDL_Surface *screen=NULL;
static SDL_Texture *texture=NULL;
static SDL_Renderer *renderer=NULL;

int MYSDL_Init(uint32_t v)
{
  int r=0;

  r = SDL_Init(v | SDL_INIT_JOYSTICK);
  joy = SDL_JoystickOpen(0);
  printf("%s, r=%d, joy=%p\n", __func__, r, joy);
  return r;
}

int MYSDL_WasInit(uint32_t v)
{
  return SDL_WasInit(v);
}

int MYSDL_InitSubSystem(uint32_t v)
{
  int r=0;
  
  r = SDL_InitSubSystem(v);
  printf("%s, r=%d\n", __func__, r);
  return r;
}

void MYSDL_QuitSubSystem(uint32_t v)
{
  SDL_QuitSubSystem(v);
}

SDL_Surface* MYSDL_SetVideoMode(uint32_t w, uint32_t h, uint32_t bpp, uint32_t flags)
{
  sdl_w = w;
  sdl_h = h;
  sdl_bpp = bpp;
  window = SDL_CreateWindow("libffb", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, w, h, SDL_WINDOW_SHOWN);
  renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
  screen = SDL_CreateRGBSurface(0, w, h, bpp, 0, 0, 0, 0);
  texture = SDL_CreateTexture(renderer, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, w, h);
  printf("%s, w=%d, h=%d, bpp=%d\n", __func__, w, h, bpp);
  return screen;
}

void MYSDL_Flip(SDL_Surface *s)
{
  SDL_UpdateTexture(texture, NULL, s->pixels, s->pitch);
  SDL_RenderClear(renderer);
  SDL_RenderCopy(renderer, texture, NULL, NULL);
  SDL_RenderPresent(renderer);
}

void MYSDL_Quit(void)
{
  SDL_FreeSurface(screen);
  SDL_DestroyTexture(texture);
  SDL_DestroyRenderer(renderer);
  SDL_DestroyWindow(window);
  if(joy){
    SDL_JoystickClose(joy);
  }
  SDL_Quit();
}

int MYSDL_PollEvent(uint32_t *type, uint32_t *btn)
{
  int r=0;
  SDL_Event e={0};

  r = SDL_PollEvent(&e);
  *type = e.type & 0xff;
  *btn = e.jbutton.button;
  return r;
}

libffb.h

#ifndef __FFB_H__
#define __FFB_H__

#ifdef ZPG
  #define MYSDL_KEYDOWN     3
  #define MYSDL_KEYUP       4

  #define MYSDLK_LALT       0
  #define MYSDLK_LCTRL      1
  #define MYSDLK_SPACE      2
  #define MYSDLK_LSHIFT     3
  #define MYSDLK_TAB        4
  #define MYSDLK_BACKSPACE  5
  #define MYSDLK_PAGEUP     6
  #define MYSDLK_PAGEDOWN   7
  #define MYSDLK_UP         8
  #define MYSDLK_DOWN       9
  #define MYSDLK_LEFT       10
  #define MYSDLK_RIGHT      11
  #define MYSDLK_HOME       12
  #define MYSDLK_END        13
  #define MYSDLK_ESCAPE     14
  #define MYSDLK_RETURN     15
  #define MYSDLK_VOLUP      16
  #define MYSDLK_VOLDOWN    17

  int MYSDL_Init(uint32_t);
  int MYSDL_WasInit(uint32_t);
  int MYSDL_InitSubSystem(uint32_t);
  void MYSDL_QuitSubSystem(uint32_t);
  SDL_Surface* MYSDL_SetVideoMode(uint32_t, uint32_t, uint32_t, uint32_t);
  void MYSDL_Quit(void);
  void MYSDL_Flip(SDL_Surface*);
  int MYSDL_PollEvent(uint32_t*, uint32_t*);
#else
  #define MYSDL_KEYDOWN       SDL_KEYDOWN
  #define MYSDL_KEYUP         SDL_KEYUP

  #define MYSDLK_LALT         SDLK_LALT
  #define MYSDLK_LCTRL        SDLK_LCTRL
  #define MYSDLK_SPACE        SDLK_SPACE
  #define MYSDLK_LSHIFT       SDLK_LSHIFT
  #define MYSDLK_TAB          SDLK_TAB
  #define MYSDLK_BACKSPACE    SDLK_BACKSPACE
  #define MYSDLK_PAGEUP       SDLK_PAGEUP
  #define MYSDLK_PAGEDOWN     SDLK_PAGEDOWN
  #define MYSDLK_UP           SDLK_UP
  #define MYSDLK_DOWN         SDLK_DOWN
  #define MYSDLK_LEFT         SDLK_LEFT
  #define MYSDLK_RIGHT        SDLK_RIGHT
  #define MYSDLK_HOME         SDLK_HOME
  #define MYSDLK_END          SDLK_END
  #define MYSDLK_ESCAPE       SDLK_ESCAPE
  #define MYSDLK_RETURN       SDLK_RETURN
  #define MYSDLK_VOLUP        SDLK_VOLUP
  #define MYSDLK_VOLDOWN      SDLK_VOLDOWN

  #define MYSDL_Init          SDL_Init
  #define MYSDL_InitSubSystem SDL_InitSubSystem
  #define MYSDL_SetVideoMode  SDL_SetVideoMode
  #define MYSDL_Quit          SDL_Quit
  #define MYSDL_Flip          SDL_Flip
  #define MYSDL_PollEvent     SDL_PollEvent
#endif

#endif

編譯

$ gcc libffb.c -DZPG -fPIC -shared -o libffbcc.so -ggdb -lSDL2 -I/usr/include/SDL2
$ g++ libffb.c -DZPG -fPIC -shared -o libffbcxx.so -ggdb -lSDL2 -I/usr/include/SDL2 -fpermissive

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