psp/psp.c

   1 #include <stdio.h>
   2 #include <stdarg.h>
   3 #include <string.h>
   4
   5 #include <pspkernel.h>
   6 #include <pspiofilemgr.h>
   7 #include <pspdisplay.h>
   8 #include <psppower.h>
   9 #include <psprtc.h>
  10 #include <pspgu.h>
  11
  12 #include "psp.h"
  13 #include "emu.h"
  14 #include "../common/lprintf.h"
  15
  16 PSP_MODULE_INFO("PicoDrive", 0, 1, 34);
  17
  18 unsigned int __attribute__((aligned(16))) guCmdList[GU_CMDLIST_SIZE];
  19
  20 void *psp_screen = VRAM_FB0;
  21 static int current_screen = 0; /* front bufer */
  22
  23 #define ANALOG_DEADZONE 80
  24
  25 /* Exit callback */
  26 static int exit_callback(int arg1, int arg2, void *common)
  27 {
  28         sceKernelExitGame();
  29         return 0;
  30 }
  31
  32 /* Power Callback */
  33 static int power_callback(int unknown, int pwrflags, void *common)
  34 {
  35         /* check for power switch and suspending as one is manual and the other automatic */
  36         if (pwrflags & PSP_POWER_CB_POWER_SWITCH || pwrflags & PSP_POWER_CB_SUSPENDING)
  37         {
  38                 lprintf("power_callback: flags: 0x%08X: suspending\n", pwrflags);
  39                 engineState = PGS_Menu;
  40         }
  41         sceDisplayWaitVblankStart();
  42         return 0;
  43 }
  44
  45 /* Callback thread */
  46 static int callback_thread(SceSize args, void *argp)
  47 {
  48         int cbid;
  49
  50         lprintf("callback_thread started with id %08x, priority %i\n",
  51                 sceKernelGetThreadId(), sceKernelGetThreadCurrentPriority());
  52
  53         cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
  54         sceKernelRegisterExitCallback(cbid);
  55         cbid = sceKernelCreateCallback("Power Callback", power_callback, NULL);
  56         scePowerRegisterCallback(0, cbid);
  57
  58         sceKernelSleepThreadCB();
  59
  60         return 0;
  61 }
  62
  63 void psp_init(void)
  64 {
  65         SceUID thid;
  66
  67         lprintf("running in %08x kernel\n", sceKernelDevkitVersion()),
  68         lprintf("entered psp_init, threadId %08x, priority %i\n", sceKernelGetThreadId(),
  69                 sceKernelGetThreadCurrentPriority());
  70
  71         thid = sceKernelCreateThread("update_thread", callback_thread, 0x11, 0xFA0, 0, 0);
  72         if (thid >= 0)
  73         {
  74                 sceKernelStartThread(thid, 0, 0);
  75         }
  76
  77         /* video */
  78         sceDisplaySetMode(0, 480, 272);
  79         sceDisplaySetFrameBuf(VRAM_FB1, 512, PSP_DISPLAY_PIXEL_FORMAT_565, PSP_DISPLAY_SETBUF_NEXTFRAME);
  80         current_screen = 1;
  81         psp_screen = VRAM_FB0;
  82
  83         /* gu */
  84         sceGuInit();
  85
  86         sceGuStart(GU_DIRECT, guCmdList);
  87         sceGuDrawBuffer(GU_PSM_5650, (void *)VRAMOFFS_FB0, 512);
  88         sceGuDispBuffer(480, 272, (void *)VRAMOFFS_FB1, 512); // don't care
  89         sceGuClear(GU_COLOR_BUFFER_BIT | GU_DEPTH_BUFFER_BIT);
  90         sceGuDepthBuffer((void *)VRAMOFFS_DEPTH, 512);
  91         sceGuOffset(2048 - (480 / 2), 2048 - (272 / 2));
  92         sceGuViewport(2048, 2048, 480, 272);
  93         sceGuDepthRange(0xc350, 0x2710);
  94         sceGuScissor(0, 0, 480, 272);
  95         sceGuEnable(GU_SCISSOR_TEST);
  96
  97         sceGuDepthMask(0xffff);
  98         sceGuDisable(GU_DEPTH_TEST);
  99
 100         sceGuFrontFace(GU_CW);
 101         sceGuEnable(GU_TEXTURE_2D);
 102         sceGuTexFunc(GU_TFX_REPLACE, GU_TCC_RGB);
 103         sceGuAmbientColor(0xffffffff);
 104         sceGuColor(0xffffffff);
 105         sceGuFinish();
 106         sceGuSync(0, 0);
 107
 108         sceDisplayWaitVblankStart();
 109         sceGuDisplay(GU_TRUE);
 110
 111
 112         /* input */
 113         sceCtrlSetSamplingCycle(0);
 114         sceCtrlSetSamplingMode(PSP_CTRL_MODE_ANALOG);
 115 }
 116
 117 void psp_finish(void)
 118 {
 119         sceGuTerm();
 120
 121         //sceKernelSleepThread();
 122         sceKernelExitGame();
 123 }
 124
 125 void psp_video_flip(int wait_vsync)
 126 {
 127         if (wait_vsync) sceDisplayWaitVblankStart();
 128         sceDisplaySetFrameBuf(psp_screen, 512, PSP_DISPLAY_PIXEL_FORMAT_565,
 129                 wait_vsync ? PSP_DISPLAY_SETBUF_IMMEDIATE : PSP_DISPLAY_SETBUF_NEXTFRAME);
 130         current_screen ^= 1;
 131         psp_screen = current_screen ? VRAM_FB0 : VRAM_FB1;
 132 }
 133
 134 void *psp_video_get_active_fb(void)
 135 {
 136         return current_screen ? VRAM_FB1 : VRAM_FB0;
 137 }
 138
 139 void psp_video_switch_to_single(void)
 140 {
 141         psp_screen = VRAM_FB0;
 142         sceDisplaySetFrameBuf(psp_screen, 512, PSP_DISPLAY_PIXEL_FORMAT_565, PSP_DISPLAY_SETBUF_NEXTFRAME);
 143         current_screen = 0;
 144 }
 145
 146 void psp_msleep(int ms)
 147 {
 148         sceKernelDelayThread(ms * 1000);
 149 }
 150
 151 unsigned int psp_pad_read(int blocking)
 152 {
 153         unsigned int buttons;
 154         SceCtrlData pad;
 155         if (blocking)
 156              sceCtrlReadBufferPositive(&pad, 1);
 157         else sceCtrlPeekBufferPositive(&pad, 1);
 158         buttons = pad.Buttons;
 159
 160         // analog..
 161         buttons &= ~(BTN_NUB_UP|BTN_NUB_DOWN|BTN_NUB_LEFT|BTN_NUB_RIGHT);
 162         if (pad.Lx < 128 - ANALOG_DEADZONE) buttons |= BTN_NUB_LEFT;
 163         if (pad.Lx > 128 + ANALOG_DEADZONE) buttons |= BTN_NUB_RIGHT;
 164         if (pad.Ly < 128 - ANALOG_DEADZONE) buttons |= BTN_NUB_UP;
 165         if (pad.Ly > 128 + ANALOG_DEADZONE) buttons |= BTN_NUB_DOWN;
 166
 167         return buttons;
 168 }
 169
 170 int psp_get_cpu_clock(void)
 171 {
 172         return scePowerGetCpuClockFrequencyInt();
 173 }
 174
 175 int psp_set_cpu_clock(int clock)
 176 {
 177         int ret = scePowerSetClockFrequency(clock, clock, clock/2);
 178         if (ret != 0) lprintf("failed to set clock: %i\n", ret);
 179
 180         return ret;
 181 }
 182
 183 char *psp_get_status_line(void)
 184 {
 185         static char buff[64];
 186         int ret, bat_percent, bat_time;
 187         pspTime time;
 188
 189         ret = sceRtcGetCurrentClockLocalTime(&time);
 190         bat_percent = scePowerGetBatteryLifePercent();
 191         bat_time = scePowerGetBatteryLifeTime();
 192         if (ret < 0 || bat_percent < 0 || bat_time < 0) return NULL;
 193
 194         snprintf(buff, sizeof(buff), "%02i:%02i  bat: %3i%%", time.hour, time.minutes, bat_percent);
 195         if (!scePowerIsPowerOnline())
 196                 snprintf(buff+strlen(buff), sizeof(buff)-strlen(buff), " (%i:%02i)", bat_time/60, bat_time%60);
 197         return buff;
 198 }
 199
 200 /* alt logging */
 201 #define LOG_FILE "log.log"
 202
 203 static SceUID logfd = -1;
 204
 205 void lprintf_f(const char *fmt, ...)
 206 {
 207         va_list vl;
 208         char buff[256];
 209
 210         if (logfd == -2) return; // disabled
 211
 212         if (logfd < 0)
 213         {
 214                 logfd = sceIoOpen(LOG_FILE, PSP_O_WRONLY|PSP_O_APPEND, 0777);
 215                 if (logfd < 0) {
 216                         logfd = -2;
 217                         return;
 218                 }
 219         }
 220
 221         va_start(vl, fmt);
 222         vsnprintf(buff, sizeof(buff), fmt, vl);
 223         va_end(vl);
 224
 225         sceIoWrite(logfd, buff, strlen(buff));
 226
 227         // make sure it gets flushed
 228         sceIoClose(logfd);
 229         logfd = -1;
 230 }
 231
 232