void
FifoUpdateFullscreen(void)
{
FifoBeginWrite();
FifoWrite(SVGA_CMD_UPDATE);
FifoWrite(0);
FifoWrite(0);
FifoWrite(gSi->dm.virtual_width);
FifoWrite(gSi->dm.virtual_height);
FifoEndWrite();
}
uint8_t write_to_TwiFIFO(char msg[])
{
if(FifoWrite(gTwiFIFO, (unsigned char)strlen(msg)))
{
display_text("FIFO ERROR 3");
return 1;
}
for(int i = 0; i < strlen(msg); ++i)
{
if(FifoWrite(gTwiFIFO, msg[i]))
{
display_text("FIFO ERROR 4");
return 1;
}
}
return 0;
}
VOID
DrvpFillRectangle(
IN PRECTL DstRect,
IN ULONG Color
)
/*++
Routine Description:
Place a solid color fill command into the FIFO
Arguments:
DestRect - Rectangle to fill
Color - Fill color
Return Value:
Status of operation.
--*/
{
ULONG X,Y;
ULONG XYCmd;
ULONG DstAdr;
//
// calculate size of the fill.
//
X = (ULONG)(DstRect->right - DstRect->left);
Y = (ULONG)(DstRect->bottom - DstRect->top);
Y &= 0x3FF;
XYCmd=(JAGUAR_SOLID_FILL << XYCMD_CMD_SHIFT) | (Y << XYCMD_Y_SHIFT) | X;
DstAdr= Vxl.JaguarScreenX*DstRect->top + (DstRect->left << Vxl.ColorModeShift);
//
// Write command to the FIFO.
//
FifoWrite(DstAdr,Color,XYCmd);
}
void
SCREEN_TO_SCREEN_BLIT(engine_token *et, blit_params *list, uint32 count)
{
uint32 i;
blit_params *b;
FifoBeginWrite();
for (i = 0; i < count; i++) {
b = &list[i];
#if 0
TRACE("BLIT %dx%d, %dx%d->%dx%d\n", b->width + 1, b->height + 1,
b->src_left, b->src_top, b->dest_left, b->dest_top);
#endif
FifoWrite(SVGA_CMD_RECT_COPY);
FifoWrite(b->src_left);
FifoWrite(b->src_top);
FifoWrite(b->dest_left);
FifoWrite(b->dest_top);
FifoWrite(b->width + 1);
FifoWrite(b->height + 1);
}
FifoEndWrite();
FifoSync();
}
VOID
DrvpBitBlt(
IN PRECTL DstRect,
IN PPOINTL SrcPoint,
IN BOOL BltDir
)
/*++
Routine Description:
Place a BitBlt command into the FIFO
Arguments:
DstRect - Destination Rectangle
SrcPoint - Source Point
BltDir - FALSE = Left to Right Top to Bottom.
TRUE = Right to Left Bottom to Top
Return Value:
None.
--*/
{
ULONG X,Y;
ULONG XYCmd;
ULONG SrcAdr;
ULONG DstAdr;
X = DstRect->right - DstRect->left;
Y = DstRect->bottom - DstRect->top;
if (BltDir) {
//
// This is a Right To Left Bottom to Top BitBlt
// Src and Dest adr are the first byte of the pixel to
// be moved. That is the most significant byte of the pixel.
// The Rectangle excludes the bottom right corner which
// is the start address for these sort of bitblts.
// One is substracted from the Y to exclude the last line.
// One is substracted from the X after addjusting it to the
// size of the pixel. So the address of the next pixel is computed
// and then one is substracted which gives the address of the
// most significant byte of the previous pixel.
//
DstAdr=Vxl.JaguarScreenX*(DstRect->bottom-1) + ((DstRect->right) << Vxl.ColorModeShift) -1;
SrcAdr=Vxl.JaguarScreenX*(SrcPoint->y+Y-1) + ((SrcPoint->x+X) << Vxl.ColorModeShift) -1;
XYCmd=JAGUAR_BITBLT_RIGHTLEFT << XYCMD_CMD_SHIFT;
} else {
//
// This is a Left To Right Top to Bottom.
//
DstAdr=Vxl.JaguarScreenX*DstRect->top + (DstRect->left << Vxl.ColorModeShift);
SrcAdr=Vxl.JaguarScreenX*SrcPoint->y + (SrcPoint->x << Vxl.ColorModeShift);
XYCmd=JAGUAR_BITBLT_LEFTRIGHT << XYCMD_CMD_SHIFT;
}
Y &= 0x3FF;
XYCmd = XYCmd | (Y << XYCMD_Y_SHIFT) | X;
FifoWrite(DstAdr,SrcAdr,XYCmd);
}