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         /* check for power switch and suspending as one is manual and the other automatic */
  74         if (pwrflags & PSP_POWER_CB_POWER_SWITCH || pwrflags & PSP_POWER_CB_SUSPENDING)
  75         {
  76                 lprintf("power_callback: flags: 0x%08X: suspending\n", pwrflags);
  77                 engineState = PGS_Menu;
  78         }
  79         //sceDisplayWaitVblankStart();
  80         return 0;
  81 }
  82
  83 /* Callback thread */
  84 static int callback_thread(SceSize args, void *argp)
  85 {
  86         int cbid;
  87
  88         lprintf("callback_thread started with id %08x, priority %i\n",
  89                 sceKernelGetThreadId(), sceKernelGetThreadCurrentPriority());
  90
  91         cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
  92         sceKernelRegisterExitCallback(cbid);
  93         cbid = sceKernelCreateCallback("Power Callback", power_callback, NULL);
  94         scePowerRegisterCallback(0, cbid);
  95
  96         sceKernelSleepThreadCB();
  97
  98         return 0;
  99 }
 100
 101 void psp_init(void)
 102 {
 103         SceUID thid;
 104
 105         main_thread_id = sceKernelGetThreadId();
 106
 107         lprintf("running on %08x kernel\n", sceKernelDevkitVersion()),
 108         lprintf("entered psp_init, threadId %08x, priority %i\n", main_thread_id,
 109                 sceKernelGetThreadCurrentPriority());
 110
 111         thid = sceKernelCreateThread("update_thread", callback_thread, 0x11, 0xFA0, 0, NULL);
 112         if (thid >= 0)
 113         {
 114                 sceKernelStartThread(thid, 0, 0);
 115         }
 116
 117         /* video */
 118         sceDisplaySetMode(0, 480, 272);
 119         sceDisplaySetFrameBuf(VRAM_FB1, 512, PSP_DISPLAY_PIXEL_FORMAT_565, PSP_DISPLAY_SETBUF_NEXTFRAME);
 120         current_screen = 1;
 121         psp_screen = VRAM_FB0;
 122
 123         /* gu */
 124         sceGuInit();
 125
 126         sceGuStart(GU_DIRECT, guCmdList);
 127         sceGuDrawBuffer(GU_PSM_5650, (void *)VRAMOFFS_FB0, 512);
 128         sceGuDispBuffer(480, 272, (void *)VRAMOFFS_FB1, 512); // don't care
 129         sceGuClear(GU_COLOR_BUFFER_BIT | GU_DEPTH_BUFFER_BIT);
 130         sceGuDepthBuffer((void *)VRAMOFFS_DEPTH, 512);
 131         sceGuOffset(2048 - (480 / 2), 2048 - (272 / 2));
 132         sceGuViewport(2048, 2048, 480, 272);
 133         sceGuDepthRange(0xc350, 0x2710);
 134         sceGuScissor(0, 0, 480, 272);
 135         sceGuEnable(GU_SCISSOR_TEST);
 136
 137         sceGuDepthMask(0xffff);
 138         sceGuDisable(GU_DEPTH_TEST);
 139
 140         sceGuFrontFace(GU_CW);
 141         sceGuEnable(GU_TEXTURE_2D);
 142         sceGuTexFunc(GU_TFX_REPLACE, GU_TCC_RGB);
 143         sceGuAmbientColor(0xffffffff);
 144         sceGuColor(0xffffffff);
 145         sceGuFinish();
 146         sceGuSync(0, 0);
 147
 148         sceDisplayWaitVblankStart();
 149         sceGuDisplay(GU_TRUE);
 150
 151
 152         /* input */
 153         sceCtrlSetSamplingCycle(0);
 154         sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);
 155 }
 156
 157 void psp_finish(void)
 158 {
 159         lprintf("psp_finish..\n");
 160         sceGuTerm();
 161
 162         //sceKernelSleepThread();
 163         sceKernelExitGame();
 164 }
 165
 166 void psp_video_flip(int wait_vsync)
 167 {
 168         if (wait_vsync) sceDisplayWaitVblankStart();
 169         sceDisplaySetFrameBuf(psp_screen, 512, PSP_DISPLAY_PIXEL_FORMAT_565,
 170                 wait_vsync ? PSP_DISPLAY_SETBUF_IMMEDIATE : PSP_DISPLAY_SETBUF_NEXTFRAME);
 171         current_screen ^= 1;
 172         psp_screen = current_screen ? VRAM_FB0 : VRAM_FB1;
 173 }
 174
 175 void *psp_video_get_active_fb(void)
 176 {
 177         return current_screen ? VRAM_FB1 : VRAM_FB0;
 178 }
 179
 180 void psp_video_switch_to_single(void)
 181 {
 182         psp_screen = VRAM_FB0;
 183         sceDisplaySetFrameBuf(psp_screen, 512, PSP_DISPLAY_PIXEL_FORMAT_565, PSP_DISPLAY_SETBUF_NEXTFRAME);
 184         current_screen = 0;
 185 }
 186
 187 void psp_msleep(int ms)
 188 {
 189         sceKernelDelayThread(ms * 1000);
 190 }
 191
 192 unsigned int psp_pad_read(int blocking)
 193 {
 194         unsigned int buttons;
 195         SceCtrlData pad;
 196         if (blocking)
 197              sceCtrlReadBufferPositive(&pad, 1);
 198         else sceCtrlPeekBufferPositive(&pad, 1);
 199         buttons = pad.Buttons;
 200
 201         // analog..
 202         buttons &= ~(BTN_NUB_UP|BTN_NUB_DOWN|BTN_NUB_LEFT|BTN_NUB_RIGHT);
 203         if (pad.Lx < 128 - ANALOG_DEADZONE) buttons |= BTN_NUB_LEFT;
 204         if (pad.Lx > 128 + ANALOG_DEADZONE) buttons |= BTN_NUB_RIGHT;
 205         if (pad.Ly < 128 - ANALOG_DEADZONE) buttons |= BTN_NUB_UP;
 206         if (pad.Ly > 128 + ANALOG_DEADZONE) buttons |= BTN_NUB_DOWN;
 207
 208         return buttons;
 209 }
 210
 211 int psp_get_cpu_clock(void)
 212 {
 213         return scePowerGetCpuClockFrequencyInt();
 214 }
 215
 216 int psp_set_cpu_clock(int clock)
 217 {
 218         int ret = scePowerSetClockFrequency(clock, clock, clock/2);
 219         if (ret != 0) lprintf("failed to set clock: %i\n", ret);
 220
 221         return ret;
 222 }
 223
 224 char *psp_get_status_line(void)
 225 {
 226         static char buff[64];
 227         int ret, bat_percent, bat_time;
 228         pspTime time;
 229
 230         ret = sceRtcGetCurrentClockLocalTime(&time);
 231         bat_percent = scePowerGetBatteryLifePercent();
 232         bat_time = scePowerGetBatteryLifeTime();
 233         if (ret < 0 || bat_percent < 0 || bat_time < 0) return NULL;
 234
 235         snprintf(buff, sizeof(buff), "%02i:%02i  bat: %3i%%", time.hour, time.minutes, bat_percent);
 236         if (!scePowerIsPowerOnline())
 237                 snprintf(buff+strlen(buff), sizeof(buff)-strlen(buff), " (%i:%02i)", bat_time/60, bat_time%60);
 238         return buff;
 239 }
 240
 241 /* alt logging */
 242 #define LOG_FILE "log.txt"
 243
 244 #ifndef LPRINTF_STDIO
 245 typedef struct _log_entry
 246 {
 247         char buff[256];
 248         struct _log_entry *next;
 249 } log_entry;
 250
 251 static log_entry *le_root = NULL;
 252 #endif
 253
 254 void lprintf_f(const char *fmt, ...)
 255 {
 256         va_list vl;
 257
 258 #ifdef LPRINTF_STDIO
 259         va_start(vl, fmt);
 260         vprintf(fmt, vl);
 261         va_end(vl);
 262 #else
 263         static SceUID logfd = -1;
 264         char buff[256];
 265         log_entry *le, *le1;
 266
 267         if (logfd == -2) return; // disabled
 268
 269         va_start(vl, fmt);
 270         vsnprintf(buff, sizeof(buff), fmt, vl);
 271         va_end(vl);
 272
 273         // note: this is still unsafe code
 274         if (main_thread_id != sceKernelGetThreadId())
 275         {
 276                 le = malloc(sizeof(*le));
 277                 if (le == NULL) return;
 278                 le->next = NULL;
 279                 strcpy(le->buff, buff);
 280                 if (le_root == NULL) le_root = le;
 281                 else {
 282                         for (le1 = le_root; le1->next != NULL; le1 = le1->next);
 283                         le1->next = le;
 284                 }
 285                 return;
 286         }
 287
 288         logfd = sceIoOpen(LOG_FILE, PSP_O_WRONLY|PSP_O_APPEND, 0777);
 289         if (logfd < 0) {
 290                 logfd = -2;
 291                 return;
 292         }
 293
 294         if (le_root != NULL)
 295         {
 296                 le1 = le_root;
 297                 le_root = NULL;
 298                 sceKernelDelayThread(1000);
 299                 while (le1 != NULL) {
 300                         le = le1;
 301                         le1 = le->next;
 302                         sceIoWrite(logfd, le->buff, strlen(le->buff));
 303                         free(le);
 304                 }
 305         }
 306
 307         sceIoWrite(logfd, buff, strlen(buff));
 308
 309         // make sure it gets flushed
 310         sceIoClose(logfd);
 311         logfd = -1;
 312 #endif
 313 }
 314
 315