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