60 lines
1.9 KiB
C
60 lines
1.9 KiB
C
#include "libultra_internal.h"
|
|
#include "hardware.h"
|
|
extern OSViContext *D_80334914;
|
|
extern OSViContext *D_80334910;
|
|
void __osViSwapContext() {
|
|
register OSViMode *s0;
|
|
register OSViContext *s1;
|
|
u32 origin;
|
|
u32 hStart;
|
|
u32 sp34;
|
|
u32 field;
|
|
register u32 s2;
|
|
field = 0;
|
|
s1 = D_80334914;
|
|
s0 = s1->unk08;
|
|
field = HW_REG(VI_V_CURRENT_LINE_REG, u32) & 1;
|
|
s2 = osVirtualToPhysical(s1->buffer);
|
|
origin = (s0->fldRegs[field].origin) + s2;
|
|
if (s1->unk00 & 2) {
|
|
s1->unk20 |= s0->comRegs.xScale & ~0xfff;
|
|
} else {
|
|
s1->unk20 = s0->comRegs.xScale;
|
|
}
|
|
if (s1->unk00 & 4) {
|
|
sp34 = (u32)(s0->fldRegs[field].yScale & 0xfff);
|
|
s1->unk2c = s1->unk24 * sp34;
|
|
s1->unk2c |= s0->fldRegs[field].yScale & ~0xfff;
|
|
} else {
|
|
s1->unk2c = s0->fldRegs[field].yScale;
|
|
}
|
|
hStart = s0->comRegs.hStart;
|
|
if (s1->unk00 & 0x20) {
|
|
hStart = 0;
|
|
}
|
|
if (s1->unk00 & 0x40) {
|
|
s1->unk2c = 0;
|
|
origin = osVirtualToPhysical(s1->buffer);
|
|
}
|
|
if (s1->unk00 & 0x80) {
|
|
s1->unk2c = (s1->unk28 << 0x10) & 0x3ff0000;
|
|
origin = osVirtualToPhysical(s1->buffer);
|
|
}
|
|
HW_REG(VI_ORIGIN_REG, u32) = origin;
|
|
HW_REG(VI_WIDTH_REG, u32) = s0->comRegs.width;
|
|
HW_REG(VI_BURST_REG, u32) = s0->comRegs.burst;
|
|
HW_REG(VI_V_SYNC_REG, u32) = s0->comRegs.vSync;
|
|
HW_REG(VI_H_SYNC_REG, u32) = s0->comRegs.hSync;
|
|
HW_REG(VI_LEAP_REG, u32) = s0->comRegs.leap;
|
|
HW_REG(VI_H_START_REG, u32) = hStart;
|
|
HW_REG(VI_V_START_REG, u32) = s0->fldRegs[field].vStart;
|
|
HW_REG(VI_V_BURST_REG, u32) = s0->fldRegs[field].vBurst;
|
|
HW_REG(VI_INTR_REG, u32) = s0->fldRegs[field].vIntr;
|
|
HW_REG(VI_X_SCALE_REG, u32) = s1->unk20;
|
|
HW_REG(VI_Y_SCALE_REG, u32) = s1->unk2c;
|
|
HW_REG(VI_CONTROL_REG, u32) = s1->features;
|
|
D_80334914 = D_80334910;
|
|
D_80334910 = s1;
|
|
*D_80334914 = *D_80334910;
|
|
}
|