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, VRAMOFFS_FB0, 512); // point to back fb?
  68         sceGuDispBuffer(480, 272, VRAMOFFS_FB1, 512);
  69         sceGuClear(GU_COLOR_BUFFER_BIT | GU_DEPTH_BUFFER_BIT);
  70         sceGuDepthBuffer(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 //      sceGuAlphaFunc(GU_GREATER, 0, 0xff);
  77 //      sceGuEnable(GU_ALPHA_TEST);
  78 //      sceGuDepthFunc(GU_ALWAYS); // GU_GEQUAL);
  79 //      sceGuEnable(GU_DEPTH_TEST);
  80
  81         sceGuDepthMask(0xffff);
  82         sceGuDisable(GU_DEPTH_TEST);
  83
  84         sceGuFrontFace(GU_CW);
  85 //      sceGuShadeModel(GU_SMOOTH);
  86 //      sceGuEnable(GU_CULL_FACE);
  87         sceGuEnable(GU_TEXTURE_2D);
  88 //      sceGuEnable(GU_CLIP_PLANES);
  89         sceGuTexMode(GU_PSM_5650, 0, 0, 0);
  90         sceGuTexFunc(GU_TFX_REPLACE, GU_TCC_RGB);
  91         sceGuTexFilter(GU_NEAREST, GU_NEAREST);
  92 //      sceGuAmbientColor(0xffffffff);
  93 //      sceGuEnable(GU_BLEND);
  94 //      sceGuBlendFunc(GU_ADD, GU_SRC_ALPHA, GU_ONE_MINUS_SRC_ALPHA, 0, 0);
  95         sceGuFinish();
  96         sceGuSync(0, 0);
  97
  98         sceDisplayWaitVblankStart();
  99         sceGuDisplay(GU_TRUE);
 100
 101
 102         /* input */
 103         sceCtrlSetSamplingCycle(0);
 104         sceCtrlSetSamplingMode(0);
 105 }
 106
 107 void psp_finish(void)
 108 {
 109         sceGuTerm();
 110
 111         //sceKernelSleepThread();
 112         sceKernelExitGame();
 113 }
 114
 115 void psp_video_flip(int wait_vsync)
 116 {
 117         if (wait_vsync) sceDisplayWaitVblankStart();
 118         sceDisplaySetFrameBuf(psp_screen, 512, PSP_DISPLAY_PIXEL_FORMAT_565,
 119                 wait_vsync ? PSP_DISPLAY_SETBUF_IMMEDIATE : PSP_DISPLAY_SETBUF_NEXTFRAME);
 120         current_screen ^= 1;
 121         psp_screen = current_screen ? VRAM_FB0 : VRAM_FB1;
 122 }
 123
 124 void *psp_video_get_active_fb(void)
 125 {
 126         return current_screen ? VRAM_FB1 : VRAM_FB0;
 127 }
 128
 129 void psp_video_switch_to_single(void)
 130 {
 131         psp_screen = VRAM_FB0;
 132         sceDisplaySetFrameBuf(psp_screen, 512, PSP_DISPLAY_PIXEL_FORMAT_565, PSP_DISPLAY_SETBUF_NEXTFRAME);
 133         current_screen = 0;
 134 }
 135
 136 void psp_msleep(int ms)
 137 {
 138         sceKernelDelayThread(ms * 1000);
 139 }
 140
 141 unsigned int psp_pad_read(int blocking)
 142 {
 143         SceCtrlData pad;
 144         if (blocking)
 145              sceCtrlReadBufferPositive(&pad, 1);
 146         else sceCtrlPeekBufferPositive(&pad, 1);
 147
 148         return pad.Buttons;
 149 }
 150
 151 int psp_get_cpu_clock(void)
 152 {
 153         return scePowerGetCpuClockFrequencyInt();
 154 }
 155
 156 int psp_set_cpu_clock(int clock)
 157 {
 158         int ret = scePowerSetClockFrequency(clock, clock, clock/2);
 159         if (ret != 0) lprintf("failed to set clock: %i\n", ret);
 160
 161         return ret;
 162 }
 163
 164 /* alt logging */
 165 #define LOG_FILE "log.log"
 166
 167 void lprintf_f(const char *fmt, ...)
 168 {
 169         va_list vl;
 170         char buff[256];
 171
 172         if (logfd < 0)
 173         {
 174                 logfd = sceIoOpen(LOG_FILE, PSP_O_WRONLY|PSP_O_APPEND, 0777);
 175                 if (logfd < 0)
 176                         return;
 177         }
 178
 179         va_start(vl, fmt);
 180         vsnprintf(buff, sizeof(buff), fmt, vl);
 181         va_end(vl);
 182
 183         sceIoWrite(logfd, buff, strlen(buff));
 184 //sceKernelDelayThread(200 * 1000);
 185 sceIoClose(logfd);
 186 logfd = -1;
 187 }
 188
 189