diff options
Diffstat (limited to 'src/gp2x_sdk.c')
| -rw-r--r-- | src/gp2x_sdk.c | 767 |
1 files changed, 0 insertions, 767 deletions
diff --git a/src/gp2x_sdk.c b/src/gp2x_sdk.c deleted file mode 100644 index 9385fed..0000000 --- a/src/gp2x_sdk.c +++ /dev/null @@ -1,767 +0,0 @@ -
-#define DEBUG
-
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <sys/time.h>
-#include <sys/ioctl.h>
-#include <sys/soundcard.h>
-#include <linux/fb.h>
-#include <pthread.h>
-#include "menu.h"
-#include "gp2x_sdk.h"
-#include "squidgehack.h"
-#include <time.h>
-
-#define SYS_CLK_FREQ 7372800
-
-volatile unsigned short gp2x_palette[512][2];
-
-static int fb_size=(320*240*2)+(16*2);
-static int mmuHackStatus=0;
-
-//unsigned long gp2x_ticks_per_second=7372800/1000;
-unsigned long gp2x_dev[5]={0,0,0,0,0};
-unsigned long gp2x_physvram[4]={0,0,0,0};
-
-unsigned short *framebuffer16[4]={0,0,0,0};
-static unsigned short *framebuffer_mmap[4]={0,0,0,0};
-unsigned short *gp2x_logvram15[2], gp2x_sound_buffer[4+((44100*2)*8)]; //*2=stereo, *4=max buffers
-volatile unsigned short *gp2x_memregs;
-volatile unsigned long *gp2x_memregl;
-volatile unsigned long *gp2x_blitter = NULL;
-unsigned int *gp2x_intVectors;
-unsigned char *framebuffer8[4], *gp2x_screen8prev, *gp2x_logvram8[2];
-
-volatile short *pOutput[8];
-int InitFramebuffer=0;
-int Timer=0;
-volatile int SoundThreadFlag=0;
-volatile int CurrentSoundBank=0;
-int CurrentFrameBuffer=0;
-int CurrentFrag=0;
-unsigned int ExistingIntHandler;
-
-// 1024x8 8x8 font, i love it :)
-const unsigned int font8x8[]= {0x0,0x0,0xc3663c18,0x3c2424e7,0xe724243c,0x183c66c3,0xc16f3818,0x18386fc1,0x83f61c18,0x181cf683,0xe7c3993c,0x3c99c3,0x3f7fffff,0xe7cf9f,0x3c99c3e7,0xe7c399,0x3160c080,0x40e1b,0xcbcbc37e,0x7ec3c3db,0x3c3c3c18,0x81c087e,0x8683818,0x60f0e08,0x81422418,0x18244281,0xbd5a2418,0x18245abd,0x818181ff,0xff8181,0xa1c181ff,0xff8995,0x63633e,0x3e6363,0x606060,0x606060,0x3e60603e,0x3e0303,0x3e60603e,0x3e6060,0x3e636363,0x606060,0x3e03033e,0x3e6060,0x3e03033e,0x3e6363,0x60603e,0x606060,0x3e63633e,0x3e6363,0x3e63633e,0x3e6060,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x0,0x18181818,0x180018,0x666666,0x0,0x367f3600,0x367f36,0x3c067c18,0x183e60,0x18366600,0x62660c,0xe1c361c,0x6e337b,0x181818,0x0,0x18183870,0x703818,0x18181c0e,0xe1c18,0xff3c6600,0x663c,0x7e181800,0x1818,0x0,0x60c0c00,0x7e000000,0x0,0x0,0x181800,0x18306040,0x2060c,0x6e76663c,0x3c6666,0x18181c18,0x7e1818,0x3060663c,0x7e0c18,0x3018307e,0x3c6660,0x363c3830,0x30307e,0x603e067e,0x3c6660,0x3e06063c,0x3c6666,0x1830607e,0xc0c0c,0x3c66663c,0x3c6666,0x7c66663c,0x1c3060,0x181800,0x1818,0x181800,0xc1818,0xc183060,0x603018,0x7e0000,0x7e00,0x30180c06,0x60c18,0x3060663c,0x180018,0x5676663c,0x7c0676,0x66663c18,0x66667e,0x3e66663e,0x3e6666,0x606663c,0x3c6606,0x6666361e,0x1e3666,0x3e06067e,0x7e0606,0x3e06067e,0x60606,0x7606067c,0x7c6666,0x7e666666,0x666666,0x1818183c,0x3c1818,0x60606060,0x3c6660,0xe1e3666,0x66361e,0x6060606,0x7e0606,0x6b7f7763,0x636363,0x7e7e6e66,0x666676,0x6666663c,0x3c6666,0x3e66663e,0x60606,0x6666663c,0x6c366e,0x3e66663e,0x666636,0x3c06663c,0x3c6660,0x1818187e,0x181818,0x66666666,0x7c6666,0x66666666,0x183c66,0x6b636363,0x63777f,0x183c6666,0x66663c,0x3c666666,0x181818,0x1830607e,0x7e060c,0x18181878,0x781818,0x180c0602,0x406030,0x1818181e,0x1e1818,0x63361c08,0x0,0x0,0x7f0000,0xc060300,0x0,0x603c0000,0x7c667c,0x663e0606,0x3e6666,0x63c0000,0x3c0606,0x667c6060,0x7c6666,0x663c0000,0x3c067e,0xc3e0c38,0xc0c0c,0x667c0000,0x3e607c66,0x663e0606,0x666666,0x181c0018,0x3c1818,0x18180018,0xe181818,0x36660606,0x66361e,0x1818181c,0x3c1818,0x7f370000,0x63636b,0x663e0000,0x666666,0x663c0000,0x3c6666,0x663e0000,0x63e6666,0x667c0000,0x607c6666,0x663e0000,0x60606,0x67c0000,0x3e603c,0x187e1800,0x701818,0x66660000,0x7c6666,0x66660000,0x183c66,0x63630000,0x363e6b,0x3c660000,0x663c18,0x66660000,0x3e607c66,0x307e0000,0x7e0c18,0xc181870,0x701818,0x18181818,0x18181818,0x3018180e,0xe1818,0x794f0600,0x30};
-
-pthread_t gp2x_sound_thread=0, gp2x_sound_thread_exit=0;
-struct fb_fix_screeninfo fb0_fixed_info;
-struct fb_fix_screeninfo fb1_fixed_info;
-
-int altVolumeCtrl = 0;
-
-/*
-########################
-Graphics functions
-########################
- */
-
-static void debug(char *text, int pause)
-{
- unsigned short bppmode;
- bppmode=gp2x_memregs[0x28DA>>1];
- bppmode>>=9;
- bppmode<<=3;
-
- if(bppmode==8)
- {
- gp_clearFramebuffer8(framebuffer8[currFB],0);
- gp_drawString(0,0,strlen(text),text,0x51,framebuffer16[currFB]);
- }
- else
- {
- gp_clearFramebuffer8(framebuffer16[currFB],0);
- gp_drawString(0,0,strlen(text),text,(unsigned short)MENU_RGB(31,31,31),framebuffer16[currFB]);
- }
- MenuFlip();
- if(pause) MenuPause();
-
-}
-
-static int clipping_x1 = 0;
-static int clipping_x2 = 319;
-static int clipping_y1 = 0;
-static int clipping_y2 = 239;
-
-void gp_setClipping(int x1, int y1, int x2, int y2) {
- if (x1 < 0) x1 = 0;
- if (x1 > 319) x1 = 319;
- if (x2 < 0) x2 = 0;
- if (x2 > 319) x2 = 319;
- if (y1 < 0) y1 = 0;
- if (y1 > 239) y1 = 239;
- if (y2 < 0) y2 = 0;
- if (y2 > 239) y2 = 239;
-
- if (x1 < x2) {
- clipping_x1 = x1;
- clipping_x2 = x2;
- } else {
- clipping_x2 = x1;
- clipping_x1 = x2;
- }
-
- if (y1 < y2) {
- clipping_y1 = y1;
- clipping_y2 = y2;
- } else {
- clipping_y2 = y1;
- clipping_y1 = y2;
- }
-}
-
-static __inline__
-void gp_drawPixel8 ( int x, int y, unsigned char c, unsigned char *framebuffer )
-{
- if ((x < clipping_x1) || (x > clipping_x2) || (y < clipping_y1) || (y > clipping_y2)) return;
- *(framebuffer +(320*y)+x ) = c;
-}
-
-static __inline__
-void gp_drawPixel16 ( int x, int y, unsigned short c, unsigned short *framebuffer )
-{
- if ((x < clipping_x1) || (x > clipping_x2) || (y < clipping_y1) || (y > clipping_y2)) return;
- *(framebuffer +(320*y)+x ) = c;
-}
-
-static
-void set_char8x8_16bpp (int xx,int yy,int offset,unsigned short mode,unsigned short *framebuffer)
-{
- unsigned int y, pixel;
- offset *= 2;
- pixel = font8x8[0 + offset];
- for (y = 0; y < 4; y++)
- {
- if (pixel&(1<<(0+(y<<3)))) gp_drawPixel16(xx+0, yy+y, mode, framebuffer);
- if (pixel&(1<<(1+(y<<3)))) gp_drawPixel16(xx+1, yy+y, mode, framebuffer);
- if (pixel&(1<<(2+(y<<3)))) gp_drawPixel16(xx+2, yy+y, mode, framebuffer);
- if (pixel&(1<<(3+(y<<3)))) gp_drawPixel16(xx+3, yy+y, mode, framebuffer);
- if (pixel&(1<<(4+(y<<3)))) gp_drawPixel16(xx+4, yy+y, mode, framebuffer);
- if (pixel&(1<<(5+(y<<3)))) gp_drawPixel16(xx+5, yy+y, mode, framebuffer);
- if (pixel&(1<<(6+(y<<3)))) gp_drawPixel16(xx+6, yy+y, mode, framebuffer);
- if (pixel&(1<<(7+(y<<3)))) gp_drawPixel16(xx+7, yy+y, mode, framebuffer);
- }
- pixel = font8x8[1 + offset];
- for (y = 0; y < 4; y++)
- {
- if (pixel&(1<<(0+(y<<3)))) gp_drawPixel16(xx+0, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(1+(y<<3)))) gp_drawPixel16(xx+1, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(2+(y<<3)))) gp_drawPixel16(xx+2, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(3+(y<<3)))) gp_drawPixel16(xx+3, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(4+(y<<3)))) gp_drawPixel16(xx+4, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(5+(y<<3)))) gp_drawPixel16(xx+5, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(6+(y<<3)))) gp_drawPixel16(xx+6, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(7+(y<<3)))) gp_drawPixel16(xx+7, yy+y+4, mode, framebuffer);
-
- }
-}
-
-static
-void set_char8x8_8bpp (int xx,int yy,int offset,unsigned char mode,unsigned char *framebuffer)
-{
- unsigned int y, pixel;
- offset *= 2;
- pixel = font8x8[0 + offset];
- for (y = 0; y < 4; y++)
- {
- if (pixel&(1<<(0+(y<<3)))) gp_drawPixel8(xx+0, yy+y, mode, framebuffer);
- if (pixel&(1<<(1+(y<<3)))) gp_drawPixel8(xx+1, yy+y, mode, framebuffer);
- if (pixel&(1<<(2+(y<<3)))) gp_drawPixel8(xx+2, yy+y, mode, framebuffer);
- if (pixel&(1<<(3+(y<<3)))) gp_drawPixel8(xx+3, yy+y, mode, framebuffer);
- if (pixel&(1<<(4+(y<<3)))) gp_drawPixel8(xx+4, yy+y, mode, framebuffer);
- if (pixel&(1<<(5+(y<<3)))) gp_drawPixel8(xx+5, yy+y, mode, framebuffer);
- if (pixel&(1<<(6+(y<<3)))) gp_drawPixel8(xx+6, yy+y, mode, framebuffer);
- if (pixel&(1<<(7+(y<<3)))) gp_drawPixel8(xx+7, yy+y, mode, framebuffer);
- }
- pixel = font8x8[1 + offset];
- for (y = 0; y < 4; y++)
- {
- if (pixel&(1<<(0+(y<<3)))) gp_drawPixel8(xx+0, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(1+(y<<3)))) gp_drawPixel8(xx+1, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(2+(y<<3)))) gp_drawPixel8(xx+2, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(3+(y<<3)))) gp_drawPixel8(xx+3, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(4+(y<<3)))) gp_drawPixel8(xx+4, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(5+(y<<3)))) gp_drawPixel8(xx+5, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(6+(y<<3)))) gp_drawPixel8(xx+6, yy+y+4, mode, framebuffer);
- if (pixel&(1<<(7+(y<<3)))) gp_drawPixel8(xx+7, yy+y+4, mode, framebuffer);
-
- }
-}
-
-void gp_drawString (int x,int y,int len,char *buffer,unsigned short color,void *framebuffer)
-{
- int l,base=0;
- unsigned short bppmode;
- bppmode=gp2x_memregs[0x28DA>>1];
- bppmode>>=9;
- bppmode<<=3;
-
- for (l=0;l<len;l++)
- {
- if (bppmode==8)
- {
- set_char8x8_8bpp (x+base,y,buffer[l],color,framebuffer);
- }
- else
- {
- set_char8x8_16bpp (x+base,y,buffer[l],color,framebuffer);
- }
- base+=8;
- }
-}
-
-void gp_clearFramebuffer16(unsigned short *framebuffer, unsigned short pal)
-{
- int x,y;
- for (y=0;y<240;y++)
- {
- for (x=0;x<320;x++)
- {
- *framebuffer++ = pal;
- }
- }
-}
-
-void gp_clearFramebuffer8(unsigned char *framebuffer, unsigned char pal)
-{
- int x,y;
- for (y=0;y<240;y++)
- {
- for (x=0;x<320;x++)
- {
- *framebuffer++ = pal;
- }
- }
-}
-
-void gp_clearFramebuffer(void *framebuffer, unsigned int pal)
-{
- unsigned short bppmode;
- bppmode=gp2x_memregs[0x28DA>>1];
- bppmode>>=9;
- bppmode<<=3;
- if(bppmode==8) gp_clearFramebuffer8((unsigned char*)framebuffer,(unsigned char)pal);
- else gp_clearFramebuffer16((unsigned short*)framebuffer,(unsigned short)pal);
-}
-
-
-
-
-unsigned int gp_getButton(unsigned char enable_diagnals)
-{
- unsigned int value=(gp2x_memregs[0x1198>>1] & 0x00FF);
- //gp2x_memregs[0x1198>>1]
- /*
- 0x1FE = UP 1 1111 1110
- 0x17E 1 0111 1110
- 0x17F 1 0111 1111
- 0X13F 1 0011 1111
- 0x1BF = RIGHT 1 1011 1111
- 0X19F 1 1001 1111
- 0X1DF 1 1101 1111
- 0X1CF 1 1100 1111
- 0x1EF = DOWN 1 1110 1111
- 0x1E7 1 1110 0111
- 0x1F7 1 1111 0111
- 0x1F3 1 1111 0011
- 0x1FB = LEFT 1 1111 1011
- 0x1F9 1 1111 1001
- 0x1FD 1 1111 1101
- 0x1FC 1 1111 1100
-
- */
- switch(value)
- {
- //UP
- case 0x7E:
- case 0xFC:
- value = 0xFE;
- break;
-
- //RIGHT
- case 0x3F:
- case 0x9F:
- value = 0xBF;
- break;
-
- //DOWN
- case 0xCF:
- case 0xE7:
- value = 0xEF;
- break;
-
- //LEFT
- case 0xF3:
- case 0xF9:
- value = 0xFB;
- break;
- }
-
- if (enable_diagnals)
- {
-
- 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));
-}
-
-void gp_initGraphics(unsigned short bpp, int flip, int applyMmuHack)
-{
-
- int x = 0;
- unsigned int key = 0;
- unsigned int offset = 0;
- char buf[256];
-
-
-#ifdef DEBUG
- printf("Entering gp_initGraphics....\r\n");
-#endif
- /*
- First check that frame buffer memory has not already been setup
- */
- if (!InitFramebuffer)
- {
-#ifdef DEBUG
- sprintf(buf, "Initing buffer\r\n");
- printf(buf);
-#endif
- gp2x_dev[0] = open("/dev/fb0", O_RDWR);
- gp2x_dev[1] = open("/dev/fb1", O_RDWR);
- gp2x_dev[2] = open("/dev/mem", O_RDWR);
-
-#ifdef DEBUG
- sprintf(buf, "Devices opened\r\n");
- printf(buf);
- sprintf(buf, "/dev/fb0: %x \r\n", gp2x_dev[0]);
- printf(buf);
- sprintf(buf, "/dev/fb1: %x \r\n", gp2x_dev[1]);
- printf(buf);
- sprintf(buf, "/dev/mem: %x \r\n", gp2x_dev[2]);
- printf(buf);
-#endif
-
- gp2x_memregs=(unsigned short *)mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], 0xc0000000);
- gp2x_memregl=(unsigned long *)gp2x_memregs;
- if (!gp2x_blitter) gp2x_blitter=(unsigned long *)mmap(0, 0x100, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], 0xe0020000);
-
- if (!framebuffer_mmap[0]) framebuffer_mmap[0]=(void *)mmap(0, fb_size, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], (gp2x_physvram[0]=0x04000000-(0x26000*4) ));
- if (!framebuffer_mmap[1]) framebuffer_mmap[1]=(void *)mmap(0, fb_size, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], (gp2x_physvram[1]=0x04000000-(0x26000*3) ));
- if (!framebuffer_mmap[2]) framebuffer_mmap[2]=(void *)mmap(0, fb_size, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], (gp2x_physvram[2]=0x04000000-(0x26000*2) ));
- if (!framebuffer_mmap[3]) framebuffer_mmap[3]=(void *)mmap(0, fb_size, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], (gp2x_physvram[3]=0x04000000-(0x26000*1) ));
-
- if (applyMmuHack)
- {
- printf("Applying MMUHACK..."); fflush(stdout);
- mmuHackStatus = mmuhack();
- sprintf(buf, "Done\r\n. MMUHACK returned: %x\r\n", mmuHackStatus);
- printf(buf); fflush(stdout);
- }
-
- // offset externally visible buffers by 8
- // this allows DrMD to not worry about clipping
- framebuffer16[0]=framebuffer_mmap[0]+8;
- framebuffer16[1]=framebuffer_mmap[1]+8;
- framebuffer16[2]=framebuffer_mmap[2]+8;
- framebuffer16[3]=framebuffer_mmap[3]+8;
- //ofset physical buffer as well
- gp2x_physvram[0]+=16;
- gp2x_physvram[1]+=16;
- gp2x_physvram[2]+=16;
- gp2x_physvram[3]+=16;
- // clear all the framebuffers to black
- // otherwise you get crap displayed on the screen the first time
- // you start
- framebuffer8[0]=(unsigned char*)framebuffer16[0];
- framebuffer8[1]=(unsigned char*)framebuffer16[1];
- framebuffer8[2]=(unsigned char*)framebuffer16[2];
- framebuffer8[3]=(unsigned char*)framebuffer16[3];
-
- // Clear the frame buffers
- memset(framebuffer16[0],0,320*240*2);
- memset(framebuffer16[1],0,320*240*2);
- memset(framebuffer16[2],0,320*240*2);
- memset(framebuffer16[3],0,320*240*2);
-
- InitFramebuffer=1;
-
- //gp2x_memregs[0x0F16>>1] = 0x830a;
- //usleep(1000000);
- //gp2x_memregs[0x0F58>>1] = 0x100c;
- //usleep(1000000);
-
-
- }
-
-
- // Set graphics mode
- gp2x_memregs[0x28DA>>1]=(((bpp+1)/8)<<9)|0xAB; /*8/15/16/24bpp...*/
- gp2x_memregs[0x290C>>1]=320*((bpp+1)/8);
-
- //TV out fix
- gp_video_RGB_setscaling(320,240);
-
- // 2d accel
- //gp2x_memregs[0x904 >> 1] |= 1<<10; //SYSCLKENREG (System Clock Enable Register) maybe bit 10 is 2d accer
- //gp2x_memregs[0x90a >> 1] = 0xffff; // Reset clock timings for all devices
-
- gp_setFramebuffer(flip,1);
-
-#ifdef DEBUG
- printf("Leaving gp_initGraphics....\r\n");
-#endif
-}
-
-void gp_setFramebuffer(int flip, int sync)
-{
- CurrentFrameBuffer=flip;
- unsigned int address=(unsigned int)gp2x_physvram[flip];
- unsigned short x=0;
- /*switch(sync)
- {
- case 0:
- // No sync
- break;
-
- case 1:
- // VSync
- while(1)
- {
- x=gp2x_memregs[0x1182>>1];
- if((x&(1<<4)) == 0)
- {
- break;
- }
- }
- break;
- case 2:
- // HSync
- while(1)
- {
- x=gp2x_memregs[0x1182>>1];
- if((x&(1<<5)) == 0)
- {
- break;
- }
- }
- break;
- }*/
-
- 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)
-{
- unsigned short *g=(unsigned short *)gp2x_palette; int i=512;
- gp2x_memregs[0x2958>>1]=0;
- while(i--) gp2x_memregs[0x295A>>1]=*g++;
-}
-
-/*
-########################
-Sound functions
-########################
- */
-static
-void *gp2x_sound_play(void)
-{
- //struct timespec ts; ts.tv_sec=0, ts.tv_nsec=1000;
- while(! gp2x_sound_thread_exit)
- {
- Timer++;
- CurrentSoundBank++;
-
- if (CurrentSoundBank >= 8) CurrentSoundBank = 0;
-
- if (SoundThreadFlag==SOUND_THREAD_SOUND_ON)
- {
- write(gp2x_dev[3], (void *)pOutput[CurrentSoundBank], gp2x_sound_buffer[1]);
- ioctl(gp2x_dev[3], SOUND_PCM_SYNC, 0);
- //ts.tv_sec=0, ts.tv_nsec=(gp2x_sound_buffer[3]<<16)|gp2x_sound_buffer[2];
- //nanosleep(&ts, NULL);
- }
- else
- {
- write(gp2x_dev[3], (void *)&gp2x_sound_buffer[4], gp2x_sound_buffer[1]);
- ioctl(gp2x_dev[3], SOUND_PCM_SYNC, 0);
- //ts.tv_sec=0, ts.tv_nsec=(gp2x_sound_buffer[3]<<16)|gp2x_sound_buffer[2];
- //nanosleep(&ts, NULL);
- }
- }
-
- return NULL;
-}
-
-void gp2x_sound_play_bank(int bank)
-{
- write(gp2x_dev[3], (void *)(&gp2x_sound_buffer[4+(bank*gp2x_sound_buffer[1])]), gp2x_sound_buffer[1]);
-}
-
-void gp2x_sound_sync(void)
-{
- ioctl(gp2x_dev[3], SOUND_PCM_SYNC, 0);
-}
-
-void gp_sound_volume(int l, int r)
-{
- if(!gp2x_dev[4])
- {
- gp2x_dev[4] = open("/dev/mixer", O_WRONLY);
- }
-
- l=((l<<8)|r);
- if (altVolumeCtrl) //For FW >= 4.0
- {
- ioctl(gp2x_dev[4], SOUND_MIXER_WRITE_VOLUME, &l);
- }
- ioctl(gp2x_dev[4], SOUND_MIXER_WRITE_PCM, &l);
-}
-
-unsigned long gp_timer_read(void)
-{
- // Once again another peice of direct hardware access bites the dust
- // the code below is broken in firmware 2.1.1 so I've replaced it with a
- // to a linux function which seems to work
- //return gp2x_memregl[0x0A00>>2]/gp2x_ticks_per_second;
- struct timeval tval; // timing
-
- gettimeofday(&tval, 0);
- //tval.tv_usec
- //tval.tv_sec
- return (tval.tv_sec*1000000)+tval.tv_usec;
-}
-
-int gp_initSound(int rate, int bits, int stereo, int Hz, int frag)
-{
- int status;
- int i=0;
- int nonblocking=1;
- unsigned int bufferStart=0;
- int result;
- char text[256];
-
- //Check if firmware version > 4
- FILE *fVersion = fopen("/usr/gp2x/version","r");
- if (fVersion)
- {
- if (fgetc(fVersion) == '4')
- {
- altVolumeCtrl = 1;
- }
- fclose(fVersion);
- }
-
- //int frag=0x00020010; // double buffer - frag size = 1<<0xf = 32768
-
- //8 = 256 = 2 fps loss = good sound
- //9 = 512 = 1 fps loss = good sound
- //A = 1024 =
- //f = 32768 = 0 fps loss = bad sound
- if ((frag!= CurrentFrag)&&(gp2x_dev[3]!=0))
- {
- // Different frag config required
- // close device in order to re-adjust
- close(gp2x_dev[3]);
- gp2x_dev[3]=0;
- }
-
- if (gp2x_dev[3]==0)
- {
- gp2x_dev[3] = open("/dev/dsp", O_WRONLY);
- printf("Opening sound device: %x\r\n",gp2x_dev[3]);
- ioctl(gp2x_dev[3], SNDCTL_DSP_SETFRAGMENT, &frag);
- CurrentFrag=frag; // save frag config
- }
-
- //ioctl(gp2x_dev[3], SNDCTL_DSP_RESET, 0);
- result=ioctl(gp2x_dev[3], SNDCTL_DSP_SPEED, &rate);
- if(result==-1)
- {
- debug("Error setting DSP Speed",1);
- return(-1);
- }
-
- result=ioctl(gp2x_dev[3], SNDCTL_DSP_SETFMT, &bits);
- if(result==-1)
- {
- debug("Error setting DSP format",1);
- return(-1);
- }
-
- result=ioctl(gp2x_dev[3], SNDCTL_DSP_STEREO, &stereo);
- if(result==-1)
- {
- debug("Error setting DSP format",1);
- return(-1);
- }
- //printf("Disable Blocking: %x\r\n",ioctl(gp2x_dev[3], 0x5421, &nonblocking));
-
- gp2x_sound_buffer[1]=(gp2x_sound_buffer[0]=(rate/Hz)) << (stereo + (bits==16));
- gp2x_sound_buffer[2]=(1000000000/Hz)&0xFFFF;
- gp2x_sound_buffer[3]=(1000000000/Hz)>>16;
-
- bufferStart= &gp2x_sound_buffer[4];
- pOutput[0] = (short*)bufferStart+(0*gp2x_sound_buffer[1]);
- pOutput[1] = (short*)bufferStart+(1*gp2x_sound_buffer[1]);
- pOutput[2] = (short*)bufferStart+(2*gp2x_sound_buffer[1]);
- pOutput[3] = (short*)bufferStart+(3*gp2x_sound_buffer[1]);
- pOutput[4] = (short*)bufferStart+(4*gp2x_sound_buffer[1]);
- pOutput[5] = (short*)bufferStart+(5*gp2x_sound_buffer[1]);
- pOutput[6] = (short*)bufferStart+(6*gp2x_sound_buffer[1]);
- pOutput[7] = (short*)bufferStart+(7*gp2x_sound_buffer[1]);
-
- if(!gp2x_sound_thread)
- {
- pthread_create( &gp2x_sound_thread, NULL, gp2x_sound_play, NULL);
- //atexit(gp_Reset);
- }
-
- for(i=0;i<(gp2x_sound_buffer[1]*8);i++)
- {
- gp2x_sound_buffer[4+i] = 0;
- }
-
- return(0);
-}
-
-void gp_stopSound(void)
-{
- unsigned int i=0;
- gp2x_sound_thread_exit=1;
- printf("Killing Thread\r\n");
- for(i=0;i<(gp2x_sound_buffer[1]*8);i++)
- {
- gp2x_sound_buffer[4+i] = 0;
- }
- usleep(100000);
- printf("Thread is dead\r\n");
- gp2x_sound_thread=0;
- gp2x_sound_thread_exit=0;
- CurrentSoundBank=0;
-}
-
-
-/*
-########################
-System functions
-########################
- */
-void gp_Reset(void)
-{
- unsigned int i=0;
-
-
- if( gp2x_sound_thread)
- {
- gp2x_sound_thread_exit=1;
- usleep(500);
- }
-
- gp2x_memregs[0x28DA>>1]=0x4AB;
- gp2x_memregs[0x290C>>1]=640;
- munmap((void *)gp2x_memregs, 0x10000);
-
- munmap(framebuffer_mmap[0], fb_size);
- munmap(framebuffer_mmap[1], fb_size);
- munmap(framebuffer_mmap[2], fb_size);
- munmap(framebuffer_mmap[3], fb_size);
-
- if (gp2x_dev[0]) close(gp2x_dev[0]);
- if (gp2x_dev[1]) close(gp2x_dev[1]);
- if (gp2x_dev[2]) close(gp2x_dev[2]);
- if (gp2x_dev[3]) close(gp2x_dev[3]);
- if (gp2x_dev[4]) close(gp2x_dev[4]);
-
- fcloseall();
-
- // If MMUHACK was applied succesfully then remove it
- if (mmuHackStatus) mmuunhack();
-
- chdir("/usr/gp2x");
- execl("gp2xmenu",NULL);
-}
-
-void gp_video_RGB_setscaling(int W, int H)
-{
- float escalaw,escalah;
- int bpp=(gp2x_memregs[0x28DA>>1]>>9)&0x3;
-
- if(gp2x_memregs[0x2800>>1]&0x100) //TV-Out
- {
- escalaw=489.0; //RGB Horiz TV (PAL, NTSC)
- if (gp2x_memregs[0x2818>>1] == 287) //PAL
- escalah=274.0; //RGB Vert TV PAL
- else if (gp2x_memregs[0x2818>>1] == 239) //NTSC
- escalah=331.0; //RGB Vert TV NTSC
- }
- else //LCD
- {
- escalaw=1024.0; //RGB Horiz LCD
- escalah=320.0; //RGB Vert LCD
- }
-
- // scale horizontal
- gp2x_memregs[0x2906>>1]=(unsigned short)((float)escalaw *(W/320.0));
- // scale vertical
- gp2x_memregl[0x2908>>2]=(unsigned long)((float)escalah *bpp *(H/240.0));
-}
-
-void gp_setCpuspeed(unsigned int MHZ)
-{
- unsigned v;
- unsigned mdiv,pdiv=3,scale=0;
-
- MHZ*=1000000;
- mdiv=(MHZ*pdiv)/SYS_CLK_FREQ;
- mdiv=((mdiv-8)<<8) & 0xff00;
- pdiv=((pdiv-2)<<2) & 0xfc;
- scale&=3;
- v=mdiv | pdiv | scale;
- gp2x_memregs[0x910>>1]=v;
-
-}
-
-// craigix: --trc 6 --tras 4 --twr 1 --tmrd 1 --trfc 1 --trp 2 --trcd 2
-// set_RAM_Timings(6, 4, 1, 1, 1, 2, 2);
-void set_RAM_Timings(int tRC, int tRAS, int tWR, int tMRD, int tRFC, int tRP, int tRCD)
-{
- tRC -= 1; tRAS -= 1; tWR -= 1; tMRD -= 1; tRFC -= 1; tRP -= 1; tRCD -= 1; // ???
- gp2x_memregs[0x3802>>1] = ((tMRD & 0xF) << 12) | ((tRFC & 0xF) << 8) | ((tRP & 0xF) << 4) | (tRCD & 0xF);
- gp2x_memregs[0x3804>>1] = /*0x9000 |*/ ((tRC & 0xF) << 8) | ((tRAS & 0xF) << 4) | (tWR & 0xF);
-}
-
-void set_gamma(int g100)
-{
- float gamma = (float) g100 / 100;
- int i;
- gamma = 1/gamma;
-
- //enable gamma
- gp2x_memregs[0x2880>>1]&=~(1<<12);
-
- gp2x_memregs[0x295C>>1]=0;
- for(i=0; i<256; i++)
- {
- unsigned char g;
- unsigned short s;
- g =(unsigned char)(255.0*pow(i/255.0,gamma));
- s = (g<<8) | g;
- gp2x_memregs[0x295E>>1]= s;
- gp2x_memregs[0x295E>>1]= g;
- }
-}
-
-
-
-
-
|