*/
#include "minimal.h"
+#include "squidgehack.h"
+#include "asmutils.h"
unsigned char *gp2x_screen8 ,*gp2x_upperRAM;
unsigned long gp2x_dev[8]={0,0,0,0,0,0,0,0}, gp2x_physvram[8], *gp2x_memregl, gp2x_volume, gp2x_ticks_per_second;
-volatile unsigned long gp2x_sound_pausei=1, gp2x_ticks=0, gp2x_sound=0, *gp2x_dualcore_ram;
+volatile unsigned long gp2x_sound_pausei=1, gp2x_ticks=0, gp2x_sound=0, *gp2x_dualcore_ram=0;
unsigned short *gp2x_memregs, *gp2x_screen15, *gp2x_logvram15[4], gp2x_sound_buffer[4+((44100/25)*2)*8]; //25 Hz gives our biggest supported sampling buffer
volatile unsigned short gp2x_palette[512];
extern void gp2x_sound_frame(void *blah, void *buff, int samples);
+// hack
+static int scaling_enabled = 0;
void gp2x_video_flip(void)
{
unsigned long address=gp2x_physvram[gp2x_physvram[7]];
+ if (scaling_enabled) address += 32;
+
+ // since we are using the mmu hack, we must flush the cache first
+ // (the params are most likely wrong, but they seem to work somehow)
+ flushcache(address, address + 320*240, 0);
if(++gp2x_physvram[7]==4) gp2x_physvram[7]=0;
gp2x_screen15=gp2x_logvram15[gp2x_physvram[7]];
}
#endif
+#if 0
static void gp2x_initqueue(gp2x_queue *q, unsigned long queue_items, unsigned long *position920t, unsigned long *position940t)
{
q->head = q->tail = q->items = 0;
q->items--;
return q->place920t[q->tail = (q->tail < q->max_items ? q->tail+1 : 0)];
} */
-
-
+#endif
void gp2x_dualcore_pause(int yes) { if(yes) gp2x_memregs[0x0904>>1] &= 0xFFFE; else gp2x_memregs[0x0904>>1] |= 1; }
static void gp2x_940t_reset(int yes) { gp2x_memregs[0x3B48>>1] = ((yes&1) << 7) | (0x03); }
}
}
+#if 0
void gp2x_dualcore_sync(void)
{
gp2x_queue *q=(gp2x_queue *)gp2x_1stcore_data_ptr(GP2X_QUEUE_ARRAY_PTR);
free(data);
fclose(in);
}
+#endif
void gp2x_init(int ticks_per_second, int bpp, int rate, int bits, int stereo, int Hz)
{
int frag=0;
int channels=1;
int stereoLocal=0;
+ int ret;
gp2x_ticks_per_second=7372800/ticks_per_second;
if(!gp2x_dev[1]) gp2x_dev[1] = open("/dev/fb1", O_RDWR);
if(!gp2x_dev[2]) gp2x_dev[2] = open("/dev/mem", O_RDWR);
+ ioctl(gp2x_dev[gp2x_physvram[7]=0], FBIOGET_FSCREENINFO, &fixed_info);
+ gp2x_physvram[2]=gp2x_physvram[0]=fixed_info.smem_start;
+ gp2x_screen15=gp2x_logvram15[2]=gp2x_logvram15[0]=
+ (unsigned short *)mmap(0, 0x20000*2, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], gp2x_physvram[0]);
+ gp2x_screen8=(unsigned char *)gp2x_screen15;
+ printf("/dev/fb0 is @ %08lx / %p\n", gp2x_physvram[0], gp2x_screen15);
+
+ ioctl(gp2x_dev[1], FBIOGET_FSCREENINFO, &fixed_info);
+ gp2x_physvram[3]=gp2x_physvram[1]=fixed_info.smem_start;
+ gp2x_logvram15[3]=gp2x_logvram15[1]=
+ (unsigned short *)mmap(0, 0x20000*2, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], gp2x_physvram[1]);
+ printf("/dev/fb1 is @ %08lx / %p\n", gp2x_physvram[1], gp2x_logvram15[1]);
+
+ // apply the MMU hack
+ ret = mmuhack();
+ printf("squidge hack code finished and returned %s\n", ret ? "ok" : "fail");
+
// don't run sound right now
if ( gp2x_do_sound)
{
if(!gp2x_dev[4]) gp2x_dev[4] = open("/dev/mixer", O_RDWR);
}
- gp2x_dualcore_ram=(unsigned long *)mmap(0, 0x1000000, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], 0x03000000);
+// gp2x_dualcore_ram=(unsigned long *)mmap(0, 0x1000000, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], 0x03000000);
/*gp2x_dualcore_ram=(unsigned long *)mmap(0, 0x2000000, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], 0x02000000);*/
gp2x_memregl=(unsigned long *)mmap(0, 0x10000, PROT_READ|PROT_WRITE, MAP_SHARED, gp2x_dev[2], 0xc0000000);
gp2x_memregs=(unsigned short *)gp2x_memregl;
gp2x_memregs[0x0F16>>1] = 0x830a; usleep(100000);
gp2x_memregs[0x0F58>>1] = 0x100c; usleep(100000); }
- ioctl(gp2x_dev[gp2x_physvram[7]=0], FBIOGET_FSCREENINFO, &fixed_info);
- gp2x_screen15=gp2x_logvram15[2]=gp2x_logvram15[0]=(unsigned short *)mmap(0, 320*240*2, PROT_WRITE, MAP_SHARED, gp2x_dev[0], 0);
- gp2x_screen8=(unsigned char *)gp2x_screen15;
- gp2x_physvram[2]=gp2x_physvram[0]=fixed_info.smem_start;
-
- ioctl(gp2x_dev[1], FBIOGET_FSCREENINFO, &fixed_info);
- gp2x_logvram15[3]=gp2x_logvram15[1]=(unsigned short *)mmap(0, 320*240*2, PROT_WRITE, MAP_SHARED, gp2x_dev[1], 0);
- gp2x_physvram[3]=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*/
memset(gp2x_screen15, 0, 320*240*2); gp2x_video_flip();
memset(gp2x_screen15, 0, 320*240*2); gp2x_video_flip();
- if(bpp==8) gp2x_physvram[2]+=320*240, gp2x_physvram[3]+=320*240,
- gp2x_logvram15[2]+=320*240/2, gp2x_logvram15[3]+=320*240/2;
+ //if(bpp==8) gp2x_physvram[2]+=320*240, gp2x_physvram[3]+=320*240,
+ // gp2x_logvram15[2]+=320*240/2, gp2x_logvram15[3]+=320*240/2;
+ if(bpp==8) gp2x_physvram[2]+=0x20000, gp2x_physvram[3]+=0x20000,
+ gp2x_logvram15[2]+=0x20000/2, gp2x_logvram15[3]+=0x20000/2;
if ( gp2x_do_sound)
{
-
ioctl(gp2x_dev[3], SNDCTL_DSP_SPEED, &rate);
ioctl(gp2x_dev[3], SNDCTL_DSP_SETFMT, &bits);
first=0;
}
}
-
}
while((gp2x_sound++)<1000000); //wait arm920t threads to finish
gp2x_dualcore_registers(0);
+ mmuunhack();
gp2x_memregs[0x28DA>>1]=0x4AB; //set video mode
gp2x_memregs[0x290C>>1]=640;
int bpp=(gp2x_memregs[0x28DA>>1]>>9)&0x3; /* bytes per pixel */
+ scaling_enabled = (width == 320) ? 0 : 1;
+
if(gp2x_memregs[0x2800>>1]&0x100) /* TV-Out ON? */
{
xscale=489.0; /* X-Scale with TV-Out (PAL or NTSC) */
notaz.gp2x.de / fceu.git / blobdiff