psp/psp.c

   1 // (c) Copyright 2007 notaz, All rights reserved.
   2 // Free for non-commercial use.
   3
   4 // For commercial use, separate licencing terms must be obtained.
   5
   6 #include <stdio.h>
   7 #include <stdlib.h>
   8 #include <stdarg.h>
   9 #include <string.h>
  10
  11 #include <pspkernel.h>
  12 #include <pspiofilemgr.h>
  13 #include <pspdisplay.h>
  14 #include <psppower.h>
  15 #include <psprtc.h>
  16 #include <pspgu.h>
  17 #include <pspsdk.h>
  18
  19 #include "psp.h"
  20 #include "emu.h"
  21 #include "../common/lprintf.h"
  22
  23 extern int pico_main(void);
  24
  25 #ifndef FW15
  26
  27 PSP_MODULE_INFO("PicoDrive", 0, 1, 35);
  28 PSP_HEAP_SIZE_MAX();
  29
  30 int main() { return pico_main(); }      /* just a wrapper */
  31
  32 #else
  33
  34 PSP_MODULE_INFO("PicoDrive", 0x1000, 1, 35);
  35 PSP_MAIN_THREAD_ATTR(0);
  36
  37 int main()
  38 {
  39         SceUID thid;
  40
  41         /* this is the thing we need the kernel mode for */
  42         pspSdkInstallNoDeviceCheckPatch();
  43
  44         thid = sceKernelCreateThread("pico_main", (SceKernelThreadEntry) pico_main, 32, 0x2000, PSP_THREAD_ATTR_USER, NULL);
  45         if (thid >= 0)
  46                 sceKernelStartThread(thid, 0, 0);
  47         sceKernelExitDeleteThread(0);
  48
  49         return 0;
  50 }
  51
  52 #endif
  53
  54 unsigned int __attribute__((aligned(16))) guCmdList[GU_CMDLIST_SIZE];
  55
  56 void *psp_screen = VRAM_FB0;
  57 static int current_screen = 0; /* front bufer */
  58
  59 static SceUID main_thread_id = -1;
  60
  61 #define ANALOG_DEADZONE 80
  62
  63 /* Exit callback */
  64 static int exit_callback(int arg1, int arg2, void *common)
  65 {
  66         sceKernelExitGame();
  67         return 0;
  68 }
  69
  70 /* Power Callback */
  71 static int power_callback(int unknown, int pwrflags, void *common)
  72 {
  73         static int old_state = PGS_Menu;
  74
  75         lprintf("power_callback: flags: 0x%08X\n", pwrflags);
  76
  77         /* check for power switch and suspending as one is manual and the other automatic */
  78         if (pwrflags & PSP_POWER_CB_POWER_SWITCH || pwrflags & PSP_POWER_CB_SUSPENDING || pwrflags & PSP_POWER_CB_STANDBY)
  79         {
  80                 if (engineState != PGS_Suspending) {
  81                         old_state = engineState;
  82                         engineState = PGS_Suspending;
  83                 }
  84         }
  85         else if (pwrflags & PSP_POWER_CB_RESUME_COMPLETE)
  86                 engineState = old_state;
  87
  88         //sceDisplayWaitVblankStart();
  89         return 0;
  90 }
  91
  92 /* Callback thread */
  93 static int callback_thread(SceSize args, void *argp)
  94 {
  95         int cbid;
  96
  97         lprintf("callback_thread started with id %08x, priority %i\n",
  98                 sceKernelGetThreadId(), sceKernelGetThreadCurrentPriority());
  99
 100         cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
 101         sceKernelRegisterExitCallback(cbid);
 102         cbid = sceKernelCreateCallback("Power Callback", power_callback, NULL);
 103         scePowerRegisterCallback(0, cbid);
 104
 105         sceKernelSleepThreadCB();
 106
 107         return 0;
 108 }
 109
 110 void psp_init(void)
 111 {
 112         SceUID thid;
 113
 114         main_thread_id = sceKernelGetThreadId();
 115
 116         lprintf("running on %08x kernel\n", sceKernelDevkitVersion()),
 117         lprintf("entered psp_init, threadId %08x, priority %i\n", main_thread_id,
 118                 sceKernelGetThreadCurrentPriority());
 119
 120         thid = sceKernelCreateThread("update_thread", callback_thread, 0x11, 0xFA0, 0, NULL);
 121         if (thid >= 0)
 122         {
 123                 sceKernelStartThread(thid, 0, 0);
 124         }
 125
 126         /* video */
 127         sceDisplaySetMode(0, 480, 272);
 128         sceDisplaySetFrameBuf(VRAM_FB1, 512, PSP_DISPLAY_PIXEL_FORMAT_565, PSP_DISPLAY_SETBUF_NEXTFRAME);
 129         current_screen = 1;
 130         psp_screen = VRAM_FB0;
 131
 132         /* gu */
 133         sceGuInit();
 134
 135         sceGuStart(GU_DIRECT, guCmdList);
 136         sceGuDrawBuffer(GU_PSM_5650, (void *)VRAMOFFS_FB0, 512);
 137         sceGuDispBuffer(480, 272, (void *)VRAMOFFS_FB1, 512); // don't care
 138         sceGuClear(GU_COLOR_BUFFER_BIT | GU_DEPTH_BUFFER_BIT);
 139         sceGuDepthBuffer((void *)VRAMOFFS_DEPTH, 512);
 140         sceGuOffset(2048 - (480 / 2), 2048 - (272 / 2));
 141         sceGuViewport(2048, 2048, 480, 272);
 142         sceGuDepthRange(0xc350, 0x2710);
 143         sceGuScissor(0, 0, 480, 272);
 144         sceGuEnable(GU_SCISSOR_TEST);
 145
 146         sceGuDepthMask(0xffff);
 147         sceGuDisable(GU_DEPTH_TEST);
 148
 149         sceGuFrontFace(GU_CW);
 150         sceGuEnable(GU_TEXTURE_2D);
 151         sceGuTexFunc(GU_TFX_REPLACE, GU_TCC_RGB);
 152         sceGuAmbientColor(0xffffffff);
 153         sceGuColor(0xffffffff);
 154         sceGuFinish();
 155         sceGuSync(0, 0);
 156
 157         sceDisplayWaitVblankStart();
 158         sceGuDisplay(GU_TRUE);
 159
 160
 161         /* input */
 162         sceCtrlSetSamplingCycle(0);
 163         sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);
 164 }
 165
 166 void psp_finish(void)
 167 {
 168         lprintf("psp_finish..\n");
 169         sceGuTerm();
 170
 171         //sceKernelSleepThread();
 172         sceKernelExitGame();
 173 }
 174
 175 void psp_video_flip(int wait_vsync)
 176 {
 177         if (wait_vsync) sceDisplayWaitVblankStart();
 178         sceDisplaySetFrameBuf(psp_screen, 512, PSP_DISPLAY_PIXEL_FORMAT_565,
 179                 wait_vsync ? PSP_DISPLAY_SETBUF_IMMEDIATE : PSP_DISPLAY_SETBUF_NEXTFRAME);
 180         current_screen ^= 1;
 181         psp_screen = current_screen ? VRAM_FB0 : VRAM_FB1;
 182 }
 183
 184 void *psp_video_get_active_fb(void)
 185 {
 186         return current_screen ? VRAM_FB1 : VRAM_FB0;
 187 }
 188
 189 void psp_video_switch_to_single(void)
 190 {
 191         psp_screen = VRAM_FB0;
 192         sceDisplaySetFrameBuf(psp_screen, 512, PSP_DISPLAY_PIXEL_FORMAT_565, PSP_DISPLAY_SETBUF_NEXTFRAME);
 193         current_screen = 0;
 194 }
 195
 196 void psp_msleep(int ms)
 197 {
 198         sceKernelDelayThread(ms * 1000);
 199 }
 200
 201 unsigned int psp_pad_read(int blocking)
 202 {
 203         unsigned int buttons;
 204         SceCtrlData pad;
 205         if (blocking)
 206              sceCtrlReadBufferPositive(&pad, 1);
 207         else sceCtrlPeekBufferPositive(&pad, 1);
 208         buttons = pad.Buttons;
 209
 210         // analog..
 211         buttons &= ~(BTN_NUB_UP|BTN_NUB_DOWN|BTN_NUB_LEFT|BTN_NUB_RIGHT);
 212         if (pad.Lx < 128 - ANALOG_DEADZONE) buttons |= BTN_NUB_LEFT;
 213         if (pad.Lx > 128 + ANALOG_DEADZONE) buttons |= BTN_NUB_RIGHT;
 214         if (pad.Ly < 128 - ANALOG_DEADZONE) buttons |= BTN_NUB_UP;
 215         if (pad.Ly > 128 + ANALOG_DEADZONE) buttons |= BTN_NUB_DOWN;
 216
 217         return buttons;
 218 }
 219
 220 int psp_get_cpu_clock(void)
 221 {
 222         return scePowerGetCpuClockFrequencyInt();
 223 }
 224
 225 int psp_set_cpu_clock(int clock)
 226 {
 227         int ret = scePowerSetClockFrequency(clock, clock, clock/2);
 228         if (ret != 0) lprintf("failed to set clock: %i\n", ret);
 229
 230         return ret;
 231 }
 232
 233 char *psp_get_status_line(void)
 234 {
 235         static char buff[64];
 236         int ret, bat_percent, bat_time;
 237         pspTime time;
 238
 239         ret = sceRtcGetCurrentClockLocalTime(&time);
 240         bat_percent = scePowerGetBatteryLifePercent();
 241         bat_time = scePowerGetBatteryLifeTime();
 242         if (ret < 0 || bat_percent < 0 || bat_time < 0) return NULL;
 243
 244         snprintf(buff, sizeof(buff), "%02i:%02i  bat: %3i%%", time.hour, time.minutes, bat_percent);
 245         if (!scePowerIsPowerOnline())
 246                 snprintf(buff+strlen(buff), sizeof(buff)-strlen(buff), " (%i:%02i)", bat_time/60, bat_time%60);
 247         return buff;
 248 }
 249
 250 void psp_wait_suspend(void)
 251 {
 252         // probably should do something smarter here?
 253         sceDisplayWaitVblankStart();
 254 }
 255
 256 /* alt logging */
 257 #define LOG_FILE "log.txt"
 258
 259 #ifndef LPRINTF_STDIO
 260 typedef struct _log_entry
 261 {
 262         char buff[256];
 263         struct _log_entry *next;
 264 } log_entry;
 265
 266 static log_entry *le_root = NULL;
 267 #endif
 268
 269 void lprintf(const char *fmt, ...)
 270 {
 271         va_list vl;
 272
 273 #ifdef LPRINTF_STDIO
 274         va_start(vl, fmt);
 275         vprintf(fmt, vl);
 276         va_end(vl);
 277 #else
 278         static SceUID logfd = -1;
 279         char buff[256];
 280         log_entry *le, *le1;
 281
 282         if (logfd == -2) return; // disabled
 283
 284         va_start(vl, fmt);
 285         vsnprintf(buff, sizeof(buff), fmt, vl);
 286         va_end(vl);
 287
 288         // note: this is still unsafe code
 289         if (main_thread_id != sceKernelGetThreadId())
 290         {
 291                 le = malloc(sizeof(*le));
 292                 if (le == NULL) return;
 293                 le->next = NULL;
 294                 strcpy(le->buff, buff);
 295                 if (le_root == NULL) le_root = le;
 296                 else {
 297                         for (le1 = le_root; le1->next != NULL; le1 = le1->next);
 298                         le1->next = le;
 299                 }
 300                 return;
 301         }
 302
 303         logfd = sceIoOpen(LOG_FILE, PSP_O_WRONLY|PSP_O_APPEND, 0777);
 304         if (logfd < 0) {
 305                 logfd = -2;
 306                 return;
 307         }
 308
 309         if (le_root != NULL)
 310         {
 311                 le1 = le_root;
 312                 le_root = NULL;
 313                 sceKernelDelayThread(1000);
 314                 while (le1 != NULL) {
 315                         le = le1;
 316                         le1 = le->next;
 317                         sceIoWrite(logfd, le->buff, strlen(le->buff));
 318                         free(le);
 319                 }
 320         }
 321
 322         sceIoWrite(logfd, buff, strlen(buff));
 323
 324         // make sure it gets flushed
 325         sceIoClose(logfd);
 326         logfd = -1;
 327 #endif
 328 }
 329
 330