X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=gp2x%2Fgp2xminilib.c;fp=gp2x%2Fgp2xminilib.c;h=0000000000000000000000000000000000000000;hb=a6c41a382bd4c79ab5d337536152717afcfa624f;hp=098da6bc97e8d2b33f79cfa655095a66d5d1edb9;hpb=90206450327a222607119b04f34cf1853faf37f8;p=gpsp.git diff --git a/gp2x/gp2xminilib.c b/gp2x/gp2xminilib.c deleted file mode 100644 index 098da6b..0000000 --- a/gp2x/gp2xminilib.c +++ /dev/null @@ -1,242 +0,0 @@ - -/* - GP2X minimal library v0.5 by rlyeh, 2005. - - + GP2X video library with double buffering. - + GP2X soundring buffer library with double buffering. - + GP2X joystick library. - - Thanks to Squidge, Robster, snaff and NK, for the help & previous work! :-) - - - What's new - ========== - - 0.5: patched sound for real stereo (using NK's solution); better init code. - - 0.4: lots of cleanups; sound is threaded now, double buffered too; 8 bpp video support; better exiting code. - - 0.3: shorter library; improved joystick diagonal detection. - - 0.2: better code layout; public release. - - 0.1: beta release -*/ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "gp2xminilib.h" - -extern void gp2x_sound_frame(void *blah, void *bufferg, int samples); - - - - unsigned long gp2x_dev[4]={0,0,0,0}, gp2x_physvram[4]; - unsigned short *gp2x_memregs, *gp2x_screen15, *gp2x_logvram15[2], gp2x_sound_buffer[4+(44100*2)*4]; //*2=stereo, *4=max buffers -volatile unsigned short gp2x_palette[512][2]; - unsigned char *gp2x_screen8, *gp2x_logvram8[2]; - pthread_t gp2x_sound_thread=0, gp2x_sound_thread_exit=0; - -void gp2x_video_flip(void) -{ - unsigned long address=gp2x_physvram[gp2x_physvram[3]]; - - gp2x_screen15=gp2x_logvram15[gp2x_physvram[3]^=1]; - gp2x_screen8 =gp2x_logvram8 [gp2x_physvram[3] ]; - - gp2x_memregs[0x290E>>1]=(unsigned short)(address & 0xffff); - gp2x_memregs[0x2910>>1]=(unsigned short)(address >> 16); - gp2x_memregs[0x2912>>1]=(unsigned short)(address & 0xffff); - gp2x_memregs[0x2914>>1]=(unsigned short)(address >> 16); -} - -void gp2x_video_setpalette(void) -{int i; - gp2x_memregs[0x2958>>1]=0; - for(i=0; i<512; i++) gp2x_memregs[0x295A>>1]=gp2x_palette[i][0], gp2x_memregs[0x295A>>1]=gp2x_palette[i][1]; -} - -unsigned long gp2x_joystick_read(void) -{ - unsigned long value=(gp2x_memregs[0x1198>>1] & 0x00FF); - - if(value==0xFD) value=0xFA; - if(value==0xF7) value=0xEB; - if(value==0xDF) value=0xAF; - if(value==0x7F) value=0xBE; - - return ~((gp2x_memregs[0x1184>>1] & 0xFF00) | value | (gp2x_memregs[0x1186>>1] << 16)); -} - -#if 0 -void *gp2x_sound_play(void *blah) -{ - struct timespec ts; - int flip=0; - - ts.tv_sec=0, ts.tv_nsec=gp2x_sound_buffer[2]; - - while(! gp2x_sound_thread_exit) - { - gp2x_sound_frame(blah, (void *)(&gp2x_sound_buffer[4+flip]), gp2x_sound_buffer[0]); - write(gp2x_dev[3], (void *)(&gp2x_sound_buffer[4+flip]), gp2x_sound_buffer[1]); - - flip^=gp2x_sound_buffer[1]; - - //nanosleep(&ts, NULL); - } - - return NULL; -} -#endif - -void gp2x_deinit(void) -{int i; - if(gp2x_sound_thread) { gp2x_sound_thread_exit=1; for(i=0;i<1000000;i++); } - - gp2x_memregs[0x28DA>>1]=0x4AB; - gp2x_memregs[0x290C>>1]=640; - - close(gp2x_dev[0]); - close(gp2x_dev[1]); - close(gp2x_dev[2]); - //close(gp2x_dev[3]); - //fcloseall(); -} - -void gp2x_init(int bpp, int rate, int bits, int stereo, int Hz) -{ - struct fb_fix_screeninfo fixed_info; - - if(!gp2x_dev[0]) gp2x_dev[0] = open("/dev/fb0", O_RDWR); - if(!gp2x_dev[1]) gp2x_dev[1] = open("/dev/fb1", O_RDWR); - if(!gp2x_dev[2]) gp2x_dev[2] = open("/dev/mem", O_RDWR); - //if(!gp2x_dev[3]) gp2x_dev[3] = open("/dev/dsp", O_WRONLY); - - gp2x_memregs=(unsigned short *)mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], 0xc0000000); - - if(!gp2x_sound_thread) { gp2x_memregs[0x0F16>>1] = 0x830a; sleep(1); - gp2x_memregs[0x0F58>>1] = 0x100c; sleep(1); } - - ioctl (gp2x_dev[0], FBIOGET_FSCREENINFO, &fixed_info); - gp2x_screen15=gp2x_logvram15[0]=(unsigned short *)mmap(0, 320*240*2, PROT_WRITE, MAP_SHARED, gp2x_dev[0], 0); - gp2x_screen8=gp2x_logvram8[0]=(unsigned char *)gp2x_logvram15[0]; - gp2x_physvram[0]=fixed_info.smem_start; - - ioctl (gp2x_dev[1], FBIOGET_FSCREENINFO, &fixed_info); - gp2x_logvram15[1]=(unsigned short *)mmap(0, 320*240*2, PROT_WRITE, MAP_SHARED, gp2x_dev[1], 0); - gp2x_logvram8[1]=(unsigned char *)gp2x_logvram15[1]; - gp2x_physvram[1]=fixed_info.smem_start; - - gp2x_memregs[0x28DA>>1]=(((bpp+1)/8)<<9)|0xAB; /*8/15/16/24bpp...*/ - gp2x_memregs[0x290C>>1]=320*((bpp+1)/8); /*line width in bytes*/ - - ioctl(gp2x_dev[3], SNDCTL_DSP_SPEED, &rate); - ioctl(gp2x_dev[3], SNDCTL_DSP_SETFMT, &bits); - ioctl(gp2x_dev[3], SNDCTL_DSP_STEREO, &stereo); - - gp2x_sound_buffer[1]=(gp2x_sound_buffer[0]=(rate/Hz)) << (stereo + (bits==16)); - gp2x_sound_buffer[2]=(1000000/Hz); - - if(!gp2x_sound_thread) { gp2x_sound_thread = 1; //pthread_create( &gp2x_sound_thread, NULL, gp2x_sound_play, NULL); - atexit(gp2x_deinit); } -} - - - -/* - -EXAMPLE -======= - - now supply your own function for 16 bits, stereo: - - void gp2x_sound_frame(void *blah, void *bufferg, int samples) - { - signed short *buffer=(signed short *)bufferg; - while(samples--) - { - *buffer++=0; //Left channel - *buffer++=0; //Right channel - } - } - - or 16 bits mono: - - void gp2x_sound_frame(void *blah, void *bufferg, int samples) - { - signed short *buffer=(signed short *)bufferg; - while(samples--) - { - *buffer++=0; //Central channel - } - } - - now the main program... - - hicolor example: - - int main(int argc, char *argv[]) - { - //this sets video to hicolor (16 bpp) - //it also sets sound to 44100,16bits,stereo and syncs audio to 50 Hz (PAL timing) - - //Warning: GP2X does not support 8bit sound sampling! (at least within Linux) - - gp2x_init(16,44100,16,1,50); - - while(1) - { - unsigned long pad=gp2x_joystick_read(); - unsigned short color=gp2x_video_color15(255,255,255,0); - - if(pad & GP2X_L) if(pad & GP2X_R) exit(); - - if(pad & GP2X_A) color=gp2x_color15(255,255,255,0); //white - else color=gp2x_color15(255,0,0,0); //red - - gp2x_screen15[160+120*320]=color; //x=160, y=120 - gp2x_video_flip(); - } - } - - palettized example: - - int main(int argc, char *argv[]) - { - //this sets video to palette mode (8 bpp) - //it also sets sound to 11025,16bits,stereo and syncs audio to 60 Hz (NSTC timing) - - //Warning: GP2X does not support 8bit sound sampling! (at least within Linux) - - gp2x_init(8,11025,16,1,60); - - gp2x_video_color8(0,0,0,0); //color #0 is black for us - gp2x_video_color8(1,255,255,255); //color #1 is white for us - gp2x_video_color8(2,255,0,0); //color #2 is red for us - gp2x_video_setpalette(); - - while(1) - { - unsigned long pad=gp2x_joystick_read(); - unsigned char color; - - if(pad & GP2X_L) if(pad & GP2X_R) exit(); - - if(pad & GP2X_A) color=1; //white - else color=2; //red - - gp2x_screen8[160+120*320]=color; //x=160, y=120 - gp2x_video_flip(); - } - } - -*/ -