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#include <revolution.h>
#include <revolution/os.h>
#include <revolution/gx.h>
#include <revolution/exi.h>
#include "__os.h"
#include <cstring>
typedef struct OSFatalParam {
GXColor fg;
GXColor bg;
const char* msg;
} OSFatalParam;
static OSFatalParam FatalParam;
static OSContext FatalContext;
// prototypes
static void Halt();
static void ScreenClear(void* xfb, u16 xfbW, u16 xfbH, GXColor yuv) {
int i;
int j;
u8* ptr;
ptr = xfb;
for (i = 0; i < xfbH; i++) {
for (j = 0; j < xfbW; j += 2) {
*ptr++ = yuv.r;
*ptr++ = yuv.g;
*ptr++ = yuv.r;
*ptr++ = yuv.b;
}
}
}
static void ScreenReport(void* xfb, u16 xfbW, u16 xfbH, GXColor yuv, s32 x, s32 y, s32 leading, const char* string) {
u8* ptr;
s32 width;
u32 i;
u32 j;
u32 image[72];
u32 k;
u32 l;
u8 Y;
u32 pixel;
s32 col;
loop_1:
if (xfbH - 24 >= y) {
ptr = (u8*)xfb + ((x + (y * xfbW)) * 2);
col = x;
while ((s8)*string != 0) {
if ((s8)*string == '\n') {
string++;
y += leading;
goto loop_1;
}
if (xfbW - 48 < col) {
y += leading;
goto loop_1;
}
for (i = 0; i < 24; i++) {
j = (i & 7) + ((i >> 3) * 24);
image[j + 0 ] = 0;
image[j + 8 ] = 0;
image[j + 16] = 0;
}
string = OSGetFontTexel((char*)string, image, 0, 6, &width);
for (i = 0; i < 24; i++) {
j = (i & 7) + ((i >> 3) * 24);
for (k = 0; k < 24; k++) {
l = j + 8 * (k / 8);
Y = (image[l] >> ((7 - (k & 7)) * 4)) & 0xF;
if (Y != 0) {
Y = (((yuv.r * (Y * 0xEF)) / 255) / 15) + 0x10;
pixel = k + (i * xfbW);
ptr[pixel * 2] = Y;
if ((col + k) & 1) {
ptr[(pixel * 2) - 1] = yuv.g;
ptr[(pixel * 2) + 1] = yuv.b;
} else {
ptr[(pixel * 2) - 1] = yuv.b;
ptr[(pixel * 2) + 1] = yuv.g;
}
}
}
}
ptr += width * 2;
col += width;
}
}
}
static void ConfigureVideo(u16 xfbW, u16 xfbH) {
GXRenderModeObj mode;
mode.fbWidth = xfbW;
mode.efbHeight = 480;
mode.xfbHeight = xfbH;
mode.viXOrigin = 40;
mode.viWidth = 640;
mode.viHeight = xfbH;
switch (VIGetTvFormat()) {
case 2:
case 0:
if (__VIRegs[54] & 1) {
mode.viTVmode = 2;
mode.viYOrigin = 0;
mode.xFBmode = 0;
} else {
mode.viTVmode = 0;
mode.viYOrigin = 0;
mode.xFBmode = 1;
}
break;
case 5:
#ifdef SDK_AUG2010
if (__VIRegs[54] & 1) {
mode.viTVmode = 22;
mode.viYOrigin = 0;
mode.xFBmode = 0;
} else
#endif
{
mode.viTVmode = 20;
mode.viYOrigin = 0;
mode.xFBmode = 1;
}
break;
case 1:
mode.viTVmode = 4;
mode.viYOrigin = 47;
mode.xFBmode = 1;
break;
}
VIConfigure(&mode);
VIConfigurePan(0, 0, 640, 480);
}
static GXColor RGB2YUV(GXColor rgb) {
f32 Y;
f32 Cb;
f32 Cr;
GXColor yuv;
Y = 0.5f + (16.0f + ((0.098f * (f32) rgb.b) + ((0.257f * (f32) rgb.r) + (0.504f * (f32) rgb.g))));
Cb = 0.5f + (128.0f + ((0.439f * (f32) rgb.b) + ((-0.148f * (f32) rgb.r) - (0.291f * (f32) rgb.g))));
Cr = 0.5f + (128.0f + (((0.439f * (f32) rgb.r) - (0.368f * (f32) rgb.g)) - (0.071f * (f32) rgb.b)));
yuv.r = (Y > 235.0f) ? 235.0f : (Y < 16.0f) ? 16.0f : Y;
yuv.g = (Cb > 240.0f) ? 240.0f : (Cb < 16.0f) ? 16.0f : Cb;
yuv.b = (Cr > 240.0f) ? 240.0f : (Cr < 16.0f) ? 16.0f : Cr;
yuv.a = 0;
return yuv;
}
void OSFatal(GXColor fg, GXColor bg, const char* msg) {
OSBootInfo* bootInfo;
u32 count;
OSTime t;
bootInfo = (OSBootInfo*)OSPhysicalToCached(0);
OSDisableInterrupts();
OSDisableScheduler();
OSClearContext(&FatalContext);
OSSetCurrentContext(&FatalContext);
__OSStopAudioSystem();
VIInit();
__OSUnmaskInterrupts(0x80);
VISetBlack(TRUE);
VIFlush();
VISetPreRetraceCallback(NULL);
VISetPostRetraceCallback(NULL);
OSEnableInterrupts();
count = VIGetRetraceCount();
do {} while ((s32)(VIGetRetraceCount() - count) < 1);
t = OSGetTime();
while (!__OSCallShutdownFunctions(FALSE, 0) && OSGetTime() - t < OSMillisecondsToTicks(1000)) {}
OSDisableInterrupts();
__OSCallShutdownFunctions(TRUE, 0);
EXISetExiCallback(0, NULL);
EXISetExiCallback(2, NULL);
while (!EXILock(0, 1, NULL)) {
EXISync(0);
EXIDeselect(0);
EXIUnlock(0);
}
EXIUnlock(0);
do {} while ((__EXIRegs[3] & 1) == 1);
__OSSetExceptionHandler(8, &OSDefaultExceptionHandler);
GXAbortFrame();
OSSetArenaLo((void*)0x81400000);
#ifdef SDK_AUG2010
if (!bootInfo->FSTLocation) {
OSSetArenaHi(*(void**)OSPhysicalToCached(0x3110));
} else
#endif
{
OSSetArenaHi(bootInfo->FSTLocation);
}
FatalParam.fg = fg;
FatalParam.bg = bg;
FatalParam.msg = msg;
OSSwitchFiber((u32)&Halt, (u32)OSGetArenaHi());
}
static void Halt() {
u32 count;
OSFontHeader* fontData;
void* xfb;
u32 len;
OSFatalParam* fp;
OSEnableInterrupts();
fp = &FatalParam;
len = strlen(fp->msg) + 1;
fp->msg = memmove(OSAllocFromMEM1ArenaLo(len, DOLPHIN_ALIGNMENT), fp->msg, len);
fontData = OSAllocFromMEM1ArenaLo(0xA1004, DOLPHIN_ALIGNMENT);
OSLoadFont(fontData, OSGetArenaLo());
xfb = OSAllocFromMEM1ArenaLo(0x96000, DOLPHIN_ALIGNMENT);
ScreenClear(xfb, 640, 480, RGB2YUV(fp->bg));
VISetNextFrameBuffer(xfb);
ConfigureVideo(640, 480);
VIFlush();
count = VIGetRetraceCount();
do {} while ((s32)(VIGetRetraceCount() - count) < 2);
ScreenReport(xfb, 640, 480, RGB2YUV(fp->fg), 48, 100, fontData->leading, fp->msg);
DCFlushRange(xfb, 0x96000);
VISetBlack(FALSE);
VIFlush();
count = VIGetRetraceCount();
do {} while ((s32)(VIGetRetraceCount() - count) < 1);
OSDisableInterrupts();
OSReport("%s\n", fp->msg);
PPCHalt();
}
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