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#include "stdbool.h"
#include "buffers.h"
#include "main.h"
#include "segment_symbols.h"
#include "stack.h"
#include "libu64/stackcheck.h"
#include "viconfig.h"
#include "z64dma.h"
#include "z64thread.h"
#pragma increment_block_number "n64-us:128"
// Variables are put before most headers as a hacky way to bypass bss reordering
struct IrqMgr gIrqMgr;
STACK(sIrqMgrStack, 0x500);
StackEntry sIrqMgrStackInfo;
OSThread sMainThread;
STACK(sMainStack, 0x900);
StackEntry sMainStackInfo;
OSMesg sPiMgrCmdBuff[50];
OSMesgQueue gPiMgrCmdQueue;
OSViMode gViConfigMode;
u8 gViConfigModeType;
#include "idle.h"
#include "irqmgr.h"
u8 D_80096B20 = 1;
vu8 gViConfigUseBlack = true;
u8 gViConfigAdditionalScanLines = 0;
u32 gViConfigFeatures = OS_VI_DITHER_FILTER_ON | OS_VI_GAMMA_OFF;
f32 gViConfigXScale = 1.0f;
f32 gViConfigYScale = 1.0f;
void Main_ClearMemory(void* begin, void* end) {
if (begin < end) {
bzero(begin, (uintptr_t)end - (uintptr_t)begin);
}
}
void Main_InitFramebuffer(u32* framebuffer, size_t numBytes, u32 value) {
for (; numBytes > 0; numBytes -= sizeof(u32)) {
*framebuffer++ = value;
}
}
void Main_InitScreen(void) {
Main_InitFramebuffer((u32*)gLoBuffer.framebuffer, sizeof(gLoBuffer.framebuffer),
(GPACK_RGBA5551(0, 0, 0, 1) << 16) | GPACK_RGBA5551(0, 0, 0, 1));
ViConfig_UpdateVi(false);
osViSwapBuffer(gLoBuffer.framebuffer);
osViBlack(false);
}
void Main_InitMemory(void) {
void* memStart = (void*)BOOT_ADDRESS_ULTRA;
void* memEnd = OS_PHYSICAL_TO_K0(osMemSize);
Main_ClearMemory(memStart, SEGMENT_START(framebuffer_lo));
// Clear the rest of the buffer that was not initialized by Main_InitScreen
Main_ClearMemory(&gLoBuffer.skyboxBuffer, SEGMENT_END(framebuffer_lo));
// Clear all the buffers after the `code` segment, up to the end of the available RAM space
Main_ClearMemory(SEGMENT_END(code), memEnd);
}
void Main_Init(void) {
DmaRequest dmaReq;
OSMesgQueue mq;
OSMesg msg[1];
size_t prevSize;
osCreateMesgQueue(&mq, msg, ARRAY_COUNT(msg));
prevSize = gDmaMgrDmaBuffSize;
gDmaMgrDmaBuffSize = 0;
DmaMgr_RequestAsync(&dmaReq, SEGMENT_START(code), SEGMENT_ROM_START(code), SEGMENT_ROM_SIZE_ALT(code), 0, &mq,
NULL);
Main_InitScreen();
Main_InitMemory();
osRecvMesg(&mq, NULL, OS_MESG_BLOCK);
gDmaMgrDmaBuffSize = prevSize;
Main_ClearMemory(SEGMENT_BSS_START(code), SEGMENT_BSS_END(code));
}
void Main_ThreadEntry(void* arg) {
StackCheck_Init(&sIrqMgrStackInfo, sIrqMgrStack, STACK_TOP(sIrqMgrStack), 0, 0x100, "irqmgr");
IrqMgr_Init(&gIrqMgr, STACK_TOP(sIrqMgrStack), Z_PRIORITY_IRQMGR, 1);
DmaMgr_Init();
Main_Init();
Main(arg);
DmaMgr_Stop();
}
void Idle_InitVideo(void) {
osCreateViManager(OS_PRIORITY_VIMGR);
gViConfigFeatures = OS_VI_DITHER_FILTER_ON | OS_VI_GAMMA_OFF;
gViConfigXScale = 1.0f;
gViConfigYScale = 1.0f;
switch (osTvType) {
case OS_TV_NTSC:
gViConfigModeType = OS_VI_NTSC_LAN1;
gViConfigMode = osViModeNtscLan1;
break;
case OS_TV_MPAL:
gViConfigModeType = OS_VI_MPAL_LAN1;
gViConfigMode = osViModeMpalLan1;
break;
case OS_TV_PAL:
gViConfigModeType = OS_VI_FPAL_LAN1;
gViConfigMode = osViModeFpalLan1;
gViConfigYScale = 0.833f;
break;
}
D_80096B20 = 1;
}
void Idle_ThreadEntry(void* arg) {
Idle_InitVideo();
osCreatePiManager(OS_PRIORITY_PIMGR, &gPiMgrCmdQueue, sPiMgrCmdBuff, ARRAY_COUNT(sPiMgrCmdBuff));
StackCheck_Init(&sMainStackInfo, sMainStack, STACK_TOP(sMainStack), 0, 0x400, "main");
osCreateThread(&sMainThread, Z_THREAD_ID_MAIN, Main_ThreadEntry, arg, STACK_TOP(sMainStack), Z_PRIORITY_MAIN);
osStartThread(&sMainThread);
osSetThreadPri(NULL, OS_PRIORITY_IDLE);
for (;;) {}
}
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