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