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#include "dolphin/gx/GXMisc.h"
#include "dolphin/gx/GX.h"
#include "dolphin/os/OSInterrupt.h"
#include "dolphin/os/OSReset.h"
#include "dolphin/os/OSTime.h"
#include "dolphin/base/PPCArch.h"
static void GXTokenInterruptHandler(__OSInterrupt interrupt, OSContext* context);
static void GXFinishInterruptHandler(__OSInterrupt interrupt, OSContext* pContext);
void GXSetMisc(GXMiscToken token, u32 val) {
switch (token) {
case GX_MT_NULL:
break;
case GX_MT_XF_FLUSH:
gx->vNum = val;
gx->vNumNot = !gx->vNum;
gx->bpSentNot = GX_TRUE;
if (gx->vNum) {
gx->dirtyState |= GX_DIRTY_VCD;
}
break;
case GX_MT_DL_SAVE_CONTEXT:
gx->dlSaveContext = (val != 0);
break;
}
}
void GXFlush(void) {
if (gx->dirtyState) {
__GXSetDirtyState();
}
GXFIFO.u32 = 0;
GXFIFO.u32 = 0;
GXFIFO.u32 = 0;
GXFIFO.u32 = 0;
GXFIFO.u32 = 0;
GXFIFO.u32 = 0;
GXFIFO.u32 = 0;
GXFIFO.u32 = 0;
PPCSync();
}
static void __GXAbortWait(u32 clocks) {
OSTime time0, time1;
time0 = OSGetTime();
do {
time1 = OSGetTime();
} while (time1 - time0 <= clocks / 4);
}
void __GXAbort(void) {
__PIRegs[0x18 / 4] = 1;
__GXAbortWait(200);
__PIRegs[0x18 / 4] = 0;
__GXAbortWait(20);
}
void GXAbortFrame(void) {
__GXAbort();
__GXCleanGPFifo();
}
/* ############################################################################################## */
static GXDrawSyncCallback TokenCB;
static GXDrawDoneCallback DrawDoneCB;
static GXBool DrawDone;
void GXSetDrawDone(void) {
u8 padding[8];
BOOL restore = OSDisableInterrupts();
GFWriteBPCmd(0x45000002);
GXFlush();
DrawDone = 0;
OSRestoreInterrupts(restore);
}
/* ############################################################################################## */
static OSThreadQueue FinishQueue;
static void GXWaitDrawDone(void) {
BOOL restore = OSDisableInterrupts();
while (DrawDone == 0) {
OSSleepThread(&FinishQueue);
}
OSRestoreInterrupts(restore);
}
void GXDrawDone(void) {
u8 padding[8];
GXSetDrawDone();
GXWaitDrawDone();
}
void GXPixModeSync(void) {
GXFIFO.u8 = 0x61;
GXFIFO.u32 = gx->peCtrl;
gx->bpSentNot = 0;
}
void GXPokeAlphaMode(GXCompare comp, u8 threshold) {
__peReg[3] = (comp << 8) | threshold;
}
void GXPokeAlphaRead(GXAlphaReadMode mode) {
u32 val = 0;
GX_BITFIELD_SET(val, 0x1e, 2, mode);
GX_BITFIELD_SET(val, 0x1d, 1, 1);
__peReg[4] = val;
}
void GXPokeAlphaUpdate(GXBool enable_update) {
GX_BITFIELD_SET(__peReg[1], 0x1b, 1, enable_update);
}
void GXPokeBlendMode(GXBlendMode mode, GXBlendFactor srcFactor, GXBlendFactor destFactor,
GXLogicOp op) {
u32 reg;
reg = GX_GET_PE_REG(1);
GX_SET_REG(reg, (mode == GX_BM_BLEND) || (mode == GX_BM_SUBTRACT), 31, 31);
GX_SET_REG(reg, (mode == GX_BM_SUBTRACT), 20, 20);
GX_SET_REG(reg, (mode == GX_BM_LOGIC), 30, 30);
GX_SET_REG(reg, op, 16, 19);
GX_SET_REG(reg, srcFactor, 21, 23);
GX_SET_REG(reg, destFactor, 24, 26);
GX_SET_REG(reg, 0x41, 0, 7);
GX_SET_PE_REG(1, reg);
}
void GXPokeColorUpdate(GXBool enable_update) {
GX_BITFIELD_SET(__peReg[1], 0x1c, 1, enable_update);
}
void GXPokeDstAlpha(GXBool enable, u8 alpha) {
u32 val = 0;
GX_BITFIELD_SET(val, 0x18, 8, alpha);
GX_BITFIELD_SET(val, 0x17, 1, enable);
__peReg[2] = val;
}
void GXPokeDither(GXBool enable) {
GX_BITFIELD_SET(__peReg[1], 0x1d, 1, enable);
}
void GXPokeZMode(GXBool enable_compare, GXCompare comp, GXBool update_enable) {
u32 val = 0;
GX_BITFIELD_SET(val, 0x1f, 1, enable_compare);
GX_BITFIELD_SET(val, 0x1c, 3, comp);
GX_BITFIELD_SET(val, 0x1b, 1, update_enable);
__peReg[0] = val;
}
void GXPeekZ(u16 x, u16 y, u32* z) {
u32 addr = 0xc8000000;
GX_BITFIELD_SET(addr, 0x14, 10, x);
GX_BITFIELD_SET(addr, 0xa, 10, y);
GX_BITFIELD_SET(addr, 8, 2, 1);
*z = *(u32*)addr;
}
GXDrawSyncCallback GXSetDrawSyncCallback(GXDrawSyncCallback callback) {
BOOL restore;
GXDrawSyncCallback prevCb = TokenCB;
restore = OSDisableInterrupts();
TokenCB = callback;
OSRestoreInterrupts(restore);
return prevCb;
}
static void GXTokenInterruptHandler(__OSInterrupt interrupt, OSContext* context) {
u16 token;
OSContext exceptContext;
u32 reg;
token = GX_GET_PE_REG(7);
if (TokenCB) {
OSClearContext(&exceptContext);
OSSetCurrentContext(&exceptContext);
TokenCB(token);
OSClearContext(&exceptContext);
OSSetCurrentContext(context);
}
reg = GX_GET_PE_REG(5);
GX_SET_REG(reg, 1, 29, 29);
GX_SET_PE_REG(5, reg);
}
GXDrawDoneCallback GXSetDrawDoneCallback(GXDrawDoneCallback callback) {
BOOL restore;
GXDrawDoneCallback prevCb = DrawDoneCB;
restore = OSDisableInterrupts();
DrawDoneCB = callback;
OSRestoreInterrupts(restore);
return prevCb;
}
static void GXFinishInterruptHandler(__OSInterrupt interrupt, OSContext* context) {
OSContext exceptContext;
u32 reg;
reg = GX_GET_PE_REG(5);
GX_SET_REG(reg, 1, 28, 28);
GX_SET_PE_REG(5, reg);
DrawDone = GX_TRUE;
if (DrawDoneCB) {
OSClearContext(&exceptContext);
OSSetCurrentContext(&exceptContext);
DrawDoneCB();
OSClearContext(&exceptContext);
OSSetCurrentContext(context);
}
OSWakeupThread(&FinishQueue);
}
void __GXPEInit(void) {
u32 val;
__OSSetInterruptHandler(OS_INTR_PI_PE_TOKEN, GXTokenInterruptHandler);
__OSSetInterruptHandler(OS_INTR_PI_PE_FINISH, GXFinishInterruptHandler);
OSInitThreadQueue(&FinishQueue);
__OSUnmaskInterrupts(OS_INTERRUPTMASK_PI_PE_TOKEN);
__OSUnmaskInterrupts(OS_INTERRUPTMASK_PI_PE_FINISH);
val = __peReg[5];
GX_BITFIELD_SET(val, 0x1d, 1, 1);
GX_BITFIELD_SET(val, 0x1c, 1, 1);
GX_BITFIELD_SET(val, 0x1f, 1, 1);
GX_BITFIELD_SET(val, 0x1e, 1, 1);
__peReg[5] = val;
}
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