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 <pspgu.h>
  10
  11 #include "psp.h"
  12 #include "../common/lprintf.h"
  13
  14 PSP_MODULE_INFO("PicoDrive", 0, 1, 34);
  15
  16 unsigned int __attribute__((aligned(16))) guCmdList[GU_CMDLIST_SIZE];
  17
  18 void *psp_screen = VRAM_FB0;
  19 static int current_screen = 0; /* front bufer */
  20
  21 static SceUID logfd = -1;
  22
  23 /* Exit callback */
  24 static int exit_callback(int arg1, int arg2, void *common)
  25 {
  26         sceKernelExitGame();
  27         return 0;
  28 }
  29
  30 /* Callback thread */
  31 static int callback_thread(SceSize args, void *argp)
  32 {
  33         int cbid;
  34
  35         lprintf("callback_thread started with id %i, priority %i\n",
  36                 sceKernelGetThreadId(), sceKernelGetThreadCurrentPriority());
  37
  38         cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
  39         sceKernelRegisterExitCallback(cbid);
  40
  41         sceKernelSleepThreadCB();
  42
  43         return 0;
  44 }
  45
  46 void psp_init(void)
  47 {
  48         SceUID thid;
  49
  50         lprintf("entered psp_init, threadId %i, priority %i\n", sceKernelGetThreadId(),
  51                 sceKernelGetThreadCurrentPriority());
  52
  53         thid = sceKernelCreateThread("update_thread", callback_thread, 0x11, 0xFA0, 0, 0);
  54         if (thid >= 0)
  55         {
  56                 sceKernelStartThread(thid, 0, 0);
  57         }
  58
  59         /* video */
  60         sceDisplaySetMode(0, 480, 272);
  61         sceDisplaySetFrameBuf(VRAM_FB1, 512, PSP_DISPLAY_PIXEL_FORMAT_565, PSP_DISPLAY_SETBUF_NEXTFRAME);
  62         current_screen = 1;
  63         psp_screen = VRAM_FB0;
  64
  65         /* gu */
  66         sceGuInit();
  67
  68         sceGuStart(GU_DIRECT, guCmdList);
  69         sceGuDrawBuffer(GU_PSM_5650, (void *)VRAMOFFS_FB0, 512);
  70         sceGuDispBuffer(480, 272, (void *)VRAMOFFS_FB1, 512); // don't care
  71         sceGuClear(GU_COLOR_BUFFER_BIT | GU_DEPTH_BUFFER_BIT);
  72         sceGuDepthBuffer((void *)VRAMOFFS_DEPTH, 512);
  73         sceGuOffset(2048 - (480 / 2), 2048 - (272 / 2));
  74         sceGuViewport(2048, 2048, 480, 272);
  75         sceGuDepthRange(0xc350, 0x2710);
  76         sceGuScissor(0, 0, 480, 272);
  77         sceGuEnable(GU_SCISSOR_TEST);
  78
  79         sceGuDepthMask(0xffff);
  80         sceGuDisable(GU_DEPTH_TEST);
  81
  82         sceGuFrontFace(GU_CW);
  83         sceGuEnable(GU_TEXTURE_2D);
  84         sceGuTexFunc(GU_TFX_REPLACE, GU_TCC_RGB);
  85         sceGuAmbientColor(0xffffffff);
  86         sceGuColor(0xffffffff);
  87         sceGuFinish();
  88         sceGuSync(0, 0);
  89
  90         sceDisplayWaitVblankStart();
  91         sceGuDisplay(GU_TRUE);
  92
  93
  94         /* input */
  95         sceCtrlSetSamplingCycle(0);
  96         sceCtrlSetSamplingMode(0);
  97 }
  98
  99 void psp_finish(void)
 100 {
 101         sceGuTerm();
 102
 103         //sceKernelSleepThread();
 104         sceKernelExitGame();
 105 }
 106
 107 void psp_video_flip(int wait_vsync)
 108 {
 109         if (wait_vsync) sceDisplayWaitVblankStart();
 110         sceDisplaySetFrameBuf(psp_screen, 512, PSP_DISPLAY_PIXEL_FORMAT_565,
 111                 wait_vsync ? PSP_DISPLAY_SETBUF_IMMEDIATE : PSP_DISPLAY_SETBUF_NEXTFRAME);
 112         current_screen ^= 1;
 113         psp_screen = current_screen ? VRAM_FB0 : VRAM_FB1;
 114 }
 115
 116 void *psp_video_get_active_fb(void)
 117 {
 118         return current_screen ? VRAM_FB1 : VRAM_FB0;
 119 }
 120
 121 void psp_video_switch_to_single(void)
 122 {
 123         psp_screen = VRAM_FB0;
 124         sceDisplaySetFrameBuf(psp_screen, 512, PSP_DISPLAY_PIXEL_FORMAT_565, PSP_DISPLAY_SETBUF_NEXTFRAME);
 125         current_screen = 0;
 126 }
 127
 128 void psp_msleep(int ms)
 129 {
 130         sceKernelDelayThread(ms * 1000);
 131 }
 132
 133 unsigned int psp_pad_read(int blocking)
 134 {
 135         SceCtrlData pad;
 136         if (blocking)
 137              sceCtrlReadBufferPositive(&pad, 1);
 138         else sceCtrlPeekBufferPositive(&pad, 1);
 139
 140         return pad.Buttons;
 141 }
 142
 143 int psp_get_cpu_clock(void)
 144 {
 145         return scePowerGetCpuClockFrequencyInt();
 146 }
 147
 148 int psp_set_cpu_clock(int clock)
 149 {
 150         int ret = scePowerSetClockFrequency(clock, clock, clock/2);
 151         if (ret != 0) lprintf("failed to set clock: %i\n", ret);
 152
 153         return ret;
 154 }
 155
 156 /* alt logging */
 157 #define LOG_FILE "log.log"
 158
 159 void lprintf_f(const char *fmt, ...)
 160 {
 161         va_list vl;
 162         char buff[256];
 163
 164         if (logfd < 0)
 165         {
 166                 logfd = sceIoOpen(LOG_FILE, PSP_O_WRONLY|PSP_O_APPEND, 0777);
 167                 if (logfd < 0)
 168                         return;
 169         }
 170
 171         va_start(vl, fmt);
 172         vsnprintf(buff, sizeof(buff), fmt, vl);
 173         va_end(vl);
 174
 175         sceIoWrite(logfd, buff, strlen(buff));
 176 //sceKernelDelayThread(200 * 1000);
 177 sceIoClose(logfd);
 178 logfd = -1;
 179 }
 180
 181