-/* emulate minimal lib using SDL */
-
-#include <stdio.h>
-#include <SDL.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <sys/ioctl.h>
-#include <sys/soundcard.h>
-#include <errno.h>
-
-#include "../gp2x/minimal.h"
-#include "../gp2x/usbjoy.h"
-#include "../gp2x/cpuctrl.h"
-
-SDL_Surface *screen;
-void *gp2x_screen;
-static int sounddev = 0;
-
-
-/* video stuff */
-void gp2x_video_flip(void)
-{
- if(SDL_MUSTLOCK(screen))
- SDL_LockSurface(screen);
-
- memcpy(screen->pixels, gp2x_screen, 320*240*screen->format->BytesPerPixel);
-
- if(SDL_MUSTLOCK(screen))
- SDL_UnlockSurface(screen);
-
- SDL_UpdateRect(screen, 0, 0, 0, 0);
-}
-
-
-void gp2x_video_changemode2(int bpp)
-{
- const SDL_VideoInfo *vinf;
- int flags=0;
-
- vinf=SDL_GetVideoInfo();
-
- if(vinf->hw_available)
- flags|=SDL_HWSURFACE;
-
- if (bpp == 8)
- flags|=SDL_HWPALETTE;
-
- screen = SDL_SetVideoMode(320, 240, bpp, flags);
- if(!screen)
- {
- puts(SDL_GetError());
- return;
- }
-
- SDL_WM_SetCaption("FCE Ultra","FCE Ultra");
-}
-
-
-static SDL_Color psdl[256];
-
-void gp2x_video_changemode(int bpp)
-{
- gp2x_video_changemode2(bpp);
- if (bpp == 8)
- SDL_SetPalette(screen,SDL_PHYSPAL,psdl,0,256);
- gp2x_video_flip();
-}
-
-
-void gp2x_video_setpalette(int *pal, int len)
-{
- int i;
-
- for (i = 0; i < len; i++)
- {
- psdl[i].r = pal[i] >> 16;
- psdl[i].g = pal[i] >> 8;
- psdl[i].b = pal[i];
- }
-
- SDL_SetPalette(screen,SDL_PHYSPAL,psdl,0,len);
-}
-
-
-void gp2x_video_RGB_setscaling(int W, int H)
-{
-}
-
-void gp2x_video_set_offs(int offs)
-{
-}
-
-void gp2x_video_flush_cache(void)
-{
-}
-
-void gp2x_memcpy_buffers(int buffers, void *data, int offset, int len)
-{
-}
-
-
-void gp2x_memcpy_all_buffers(void *data, int offset, int len)
-{
-}
-
-
-void gp2x_memset_all_buffers(int offset, int byte, int len)
-{
- memset((char *)gp2x_screen + offset, byte, len);
-}
-
-
-unsigned long gp2x_joystick_read(int allow_usb_joy)
-{
- unsigned long keys_out = 0;
- Uint8 *keys;
- int i;
-
- SDL_PumpEvents();
- keys = SDL_GetKeyState(NULL);
-
- if (keys[SDLK_UP]) keys_out |= GP2X_UP;
- if (keys[SDLK_LEFT]) keys_out |= GP2X_LEFT;
- if (keys[SDLK_DOWN]) keys_out |= GP2X_DOWN;
- if (keys[SDLK_RIGHT]) keys_out |= GP2X_RIGHT;
- if (keys[SDLK_RETURN]) keys_out |= GP2X_START;
- if (keys[SDLK_BACKSLASH]) keys_out |= GP2X_SELECT;
- if (keys[SDLK_s]) keys_out |= GP2X_L;
- if (keys[SDLK_d]) keys_out |= GP2X_R;
- if (keys[SDLK_z]) keys_out |= GP2X_A;
- if (keys[SDLK_x]) keys_out |= GP2X_X;
- if (keys[SDLK_c]) keys_out |= GP2X_B;
- if (keys[SDLK_v]) keys_out |= GP2X_Y;
- if (keys[SDLK_q]) keys_out |= GP2X_VOL_DOWN;
- if (keys[SDLK_w]) keys_out |= GP2X_VOL_UP;
- if (keys[SDLK_RIGHTBRACKET]) keys_out |= GP2X_PUSH;
-
- if (allow_usb_joy && num_of_joys > 0) {
- // check the usb joy as well..
- gp2x_usbjoy_update();
- for (i = 0; i < num_of_joys; i++)
- keys_out |= gp2x_usbjoy_check(i);
- }
-
- return keys_out;
-}
-
-static int s_oldrate = 0, s_oldbits = 0, s_oldstereo = 0;
-
-void gp2x_start_sound(int rate, int bits, int stereo)
-{
- int frag = 0, bsize, buffers;
-
- // if no settings change, we don't need to do anything
- if (rate == s_oldrate && s_oldbits == bits && s_oldstereo == stereo) return;
-
- if (sounddev > 0) close(sounddev);
- sounddev = open("/dev/dsp", O_WRONLY|O_ASYNC);
- if (sounddev == -1)
- {
- printf("open(\"/dev/dsp\") failed with %i\n", errno);
- return;
- }
-
- ioctl(sounddev, SNDCTL_DSP_SPEED, &rate);
- ioctl(sounddev, SNDCTL_DSP_SETFMT, &bits);
- ioctl(sounddev, SNDCTL_DSP_STEREO, &stereo);
- // calculate buffer size
- buffers = 16;
- bsize = rate / 32;
- if (rate > 22050) { bsize*=4; buffers*=2; } // 44k mode seems to be very demanding
- while ((bsize>>=1)) frag++;
- frag |= buffers<<16; // 16 buffers
- ioctl(sounddev, SNDCTL_DSP_SETFRAGMENT, &frag);
- printf("gp2x_set_sound: %i/%ibit/%s, %i buffers of %i bytes\n",
- rate, bits, stereo?"stereo":"mono", frag>>16, 1<<(frag&0xffff));
-
- s_oldrate = rate; s_oldbits = bits; s_oldstereo = stereo;
- usleep(100000);
-}
-
-
-void gp2x_sound_write(void *buff, int len)
-{
- if (sounddev > 0)
- write(sounddev, buff, len);
-}
-
-void gp2x_sound_sync(void)
-{
- if (sounddev > 0)
- ioctl(sounddev, SOUND_PCM_SYNC, 0);
-}
-
-void gp2x_sound_volume(int l, int r)
-{
-}
-
-
-void gp2x_init(void)
-{
- printf("entering init()\n"); fflush(stdout);
-
- gp2x_screen = malloc(320*240*2 + 32);
- if(gp2x_screen == NULL) return;
- memset(gp2x_screen, 0, 320*240*2 + 32);
-
- if(SDL_Init(SDL_INIT_NOPARACHUTE))
- {
- printf("Could not initialize SDL: %s.\n", SDL_GetError());
- return;
- }
-
- if(SDL_InitSubSystem(SDL_INIT_VIDEO)==-1)
- {
- puts(SDL_GetError());
- return;
- }
-
- SDL_ShowCursor(0);
-
- gp2x_video_changemode(8);
-
- /* init usb joys -GnoStiC */
- gp2x_usbjoy_init();
-
- SDL_PumpEvents();
-
- printf("gp2x_init done.\n");
-}
-
-
-char *ext_menu = 0, *ext_state = 0;
-
-void gp2x_deinit(void)
-{
- SDL_QuitSubSystem(SDL_INIT_VIDEO);
- SDL_Quit();
-
- free(gp2x_screen);
- if (sounddev > 0) close(sounddev);
- gp2x_usbjoy_deinit();
-}
-
-
-/* other stuff to be faked */
-void cpuctrl_init(void)
-{
-}
-
-void cpuctrl_deinit(void)
-{
-}
-
-void set_FCLK(unsigned MHZ)
-{
-}
-
-void set_RAM_Timings(int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
-{
-}
-
-void set_gamma(int g100)
-{
-}
-
-void set_LCD_custom_rate(lcd_rate_t rate)
-{
-}
-
-void unset_LCD_custom_rate(void)
-{
-}
-
-
-int mmuhack(void)
-{
- return 1;
-}
-
-int mmuunhack(void)
-{
- return 1;
-}
-
-void memset32(int *dest, int c, int count)
-{
- memset(dest, c, count*4);
-}
-
-void spend_cycles(int c)
-{
- usleep(c/200);
-}
-
-void convert2RGB555(unsigned short *dst, unsigned char *src, unsigned short *pal, int count)
-{
- while (count--)
- *dst++ = pal[*src++];
-}
-
-/* don't scale, just convert */
-void soft_scale(void *dst, unsigned short *pal, int line_offs, int lines)
-{
- unsigned char *src = (unsigned char *)dst + (line_offs + lines) * 320;
- unsigned short *dest = (unsigned short *)dst + (line_offs + lines) * 320;
- int count = lines*320;
-
- while (count--)
- *(--dest) = pal[*(--src)];
-}
-
notaz.gp2x.de / fceu.git / blobdiff