Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-02-25 09:50:02 +00:00
Code Issues Projects Releases Packages Wiki Activity

- Accelerate PATINVERT blits. Makes moving windows less painful but there

Browse source 
is still a significant lag with mouse input.

svn path=/trunk/; revision=5482
This commit is contained in:
David Welch 2003-08-09 10:39:13 +00:00
parent f40ab28955
commit f4de5cad85
1 changed files with 45 additions and 22 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

67
reactos/drivers/dd/vga/display/objects/bitblt.c
View file

@ -194,6 +194,7 @@ VGADDI_BltBrush(PSURFOBJ Dest, PSURFOBJ Source, PSURFOBJ MaskSurf,
PUCHAR Video;
UCHAR Mask;
ULONG i, j;
ULONG RasterOp = 0;
/* Punt brush blts to non-device surfaces. */
if (Dest->iType != STYPE_DEVICE)
@ -202,23 +203,48 @@ VGADDI_BltBrush(PSURFOBJ Dest, PSURFOBJ Source, PSURFOBJ MaskSurf,
}
/* Punt pattern fills. */
if (Rop4 == PATCOPY && Brush->iSolidColor == 0xFFFFFFFF)
if ((Rop4 == PATCOPY || Rop4 == DSTINVERT) &&
Brush->iSolidColor == 0xFFFFFFFF)
{
return(FALSE);
}
if (Rop4 == PATCOPY)
/* Get the brush colour. */
if (Rop4 == PATCOPY || Rop4 == PATINVERT)
{
SolidColor = Brush->iSolidColor;
}
else if (Rop4 == WHITENESS)
{
SolidColor = 1;
SolidColor = 0xF;
}
else
{
SolidColor = 0;
SolidColor = 0x0;
}
/* Get the raster op. */
if (Rop4 == PATINVERT)
{
RasterOp = 3;
}
/* Select write mode 3. */
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x05);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x03);
/* Setup set/reset register. */
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x00);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, (UCHAR)SolidColor);
/* Enable writes to all pixels. */
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x08);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0xFF);
/* Set up data rotate. */
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x03);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, RasterOp << 3);
/* Fill any pixels on the left which don't fall into a full row of eight. */
if ((DestRect->left % 8) != 0)
{
@ -228,21 +254,15 @@ VGADDI_BltBrush(PSURFOBJ Dest, PSURFOBJ Source, PSURFOBJ MaskSurf,
{
Mask &= ~((1 << (8 - (DestRect->right % 8))) - 1);
}
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x08);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, Mask);
/* Write the same color to each pixel. */
Video = (PUCHAR)vidmem + DestRect->top * 80 + (DestRect->left >> 3);
for (i = DestRect->top; i < DestRect->bottom; i++, Video+=80)
{
(VOID)READ_REGISTER_UCHAR(Video);
WRITE_REGISTER_UCHAR(Video, SolidColor);
WRITE_REGISTER_UCHAR(Video, Mask);
}
}
/* Enable writes to all pixels. */
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x08);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0xFF);
}
/* Have we finished. */
if ((DestRect->right - DestRect->left) < (8 - (DestRect->left % 8)))
@ -258,7 +278,8 @@ VGADDI_BltBrush(PSURFOBJ Dest, PSURFOBJ Source, PSURFOBJ MaskSurf,
Video = (PUCHAR)vidmem + i * 80 + (Left >> 3);
for (j = 0; j < Length; j++, Video++)
{
WRITE_REGISTER_UCHAR(Video, SolidColor);
(VOID)READ_REGISTER_UCHAR(Video);
WRITE_REGISTER_UCHAR(Video, 0xFF);
}
}
@ -267,22 +288,23 @@ VGADDI_BltBrush(PSURFOBJ Dest, PSURFOBJ Source, PSURFOBJ MaskSurf,
{
/* Disable writes to pixels outside the destination rectangle. */
Mask = ~((1 << (8 - (DestRect->right % 8))) - 1);
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x08);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, Mask);
Video = (PUCHAR)vidmem + DestRect->top * 80 + (DestRect->right >> 3);
for (i = DestRect->top; i < DestRect->bottom; i++, Video+=80)
{
/* Read the existing colours for this pixel into the latches. */
(VOID)READ_REGISTER_UCHAR(Video);
/* Write the new colour for the pixels selected in the mask. */
WRITE_REGISTER_UCHAR(Video, SolidColor);
WRITE_REGISTER_UCHAR(Video, Mask);
}
/* Restore the default write masks. */
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x08);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0xFF);
}
/* Restore write mode 2. */
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x05);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x02);
/* Set up data rotate. */
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x03);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x00);
return(TRUE);
}
@ -389,6 +411,7 @@ DrvBitBlt(SURFOBJ *Dest,
case BLACKNESS:
case PATCOPY:
case WHITENESS:
case PATINVERT:
BltRectFunc = VGADDI_BltBrush;
break;