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appx 4x speed improvement to VGAtoVGA(), which is used when dragging windows around the screen.

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svn path=/trunk/; revision=5470
This commit is contained in:
Royce Mitchell III 2003-08-08 16:13:18 +00:00
parent 5dc9eed728
commit c09e41690b
3 changed files with 246 additions and 127 deletions
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87
reactos/drivers/dd/vga/display/objects/bitblt.c
View file

@ -135,12 +135,13 @@ VGAtoDFB(SURFOBJ *Dest, SURFOBJ *Source, XLATEOBJ *ColorTranslation,
// Do DFBs need color translation??
}
BOOL
BOOL
VGAtoVGA(SURFOBJ *Dest, SURFOBJ *Source, XLATEOBJ *ColorTranslation,
RECTL *DestRect, POINTL *SourcePoint)
{
// FIXME: Use fast blts instead of get and putpixels
LONG i, j, dx, dy, alterx, altery, BltDirection;
LONG i, i2, j, dx, dy, alterx, altery;
//LARGE_INTEGER Start, End; // for performance measurement only
static char buf[640];
// Calculate deltas
@ -150,74 +151,32 @@ VGAtoVGA(SURFOBJ *Dest, SURFOBJ *Source, XLATEOBJ *ColorTranslation,
alterx = DestRect->left - SourcePoint->x;
altery = DestRect->top - SourcePoint->y;
// Determine bltting direction
// FIXME: should we perhaps make this an EngXxx function? Determining
// direction is probably used whenever the surfaces are the same (not
// just VGA screen)
//KeQueryTickCount ( &Start );
i = SourcePoint->x;
i2 = i + alterx;
if (SourcePoint->y >= DestRect->top)
{
if (SourcePoint->x >= DestRect->left)
{
BltDirection = CD_RIGHTDOWN;
}
else
{
BltDirection = CD_LEFTDOWN;
}
for(j=SourcePoint->y; j<SourcePoint->y+dy; j++)
{
LONG j2 = j + altery;
vgaReadScan ( i, j, dx, buf );
vgaWriteScan ( i2, j2, dx, buf );
}
}
else
{
if (SourcePoint->x >= DestRect->left)
{
BltDirection = CD_RIGHTUP;
}
else
{
BltDirection = CD_LEFTUP;
}
for(j=(SourcePoint->y+dy-1); j>=SourcePoint->y; j--)
{
LONG j2 = j + altery;
vgaReadScan ( i, j, dx, buf );
vgaWriteScan ( i2, j2, dx, buf );
}
}
// Do the VGA to VGA BitBlt
// FIXME: we're using slow get and put pixel routines
switch (BltDirection)
{
case CD_LEFTDOWN:
for(j=SourcePoint->y; j<SourcePoint->y+dy; j++)
{
for(i=SourcePoint->x; i<SourcePoint->x+dx; i++)
{
vgaPutPixel(i+alterx, j+altery, vgaGetPixel(i, j));
}
}
break;
case CD_LEFTUP:
for(j=(SourcePoint->y+dy-1); j>=SourcePoint->y; j--)
{
for(i=SourcePoint->x; i<SourcePoint->x+dx; i++)
{
vgaPutPixel(i+alterx, j+altery, vgaGetPixel(i, j));
}
}
break;
case CD_RIGHTDOWN:
for(j=SourcePoint->y; j<SourcePoint->y+dy; j++)
{
for(i=(SourcePoint->x+dx-1); i>=SourcePoint->x; i--)
{
vgaPutPixel(i+alterx, j+altery, vgaGetPixel(i, j));
}
}
break;
case CD_RIGHTUP:
for(j=(SourcePoint->y+dy-1); j>=SourcePoint->y; j--)
{
for(i=(SourcePoint->x+dx-1); i>=SourcePoint->x; i--)
{
vgaPutPixel(i+alterx, j+altery, vgaGetPixel(i, j));
}
}
break;
}
//KeQueryTickCount ( &End );
//DbgPrint ( "VgaBitBlt timing: %lu\n", (ULONG)(End.QuadPart-Start.QuadPart) );
return TRUE;
}

6
reactos/drivers/dd/vga/display/vgaddi.h
View file

@ -233,3 +233,9 @@ PSAVED_SCREEN_BITS
VGADDI_AllocSavedScreenBits(ULONG Size);
VOID
VGADDI_InitializeOffScreenMem(ULONG Start, ULONG Length);
void FASTCALL
vgaReadScan ( int x, int y, int w, void *b );
void FASTCALL
vgaWriteScan ( int x, int y, int w, void *b );

280
reactos/drivers/dd/vga/display/vgavideo/vgavideo.c
View file

@ -24,6 +24,9 @@ static unsigned char leftMask;
static int byteCounter;
static unsigned char rightMask;
#define READ_REGISTER_UCHAR(p) (*((PUCHAR)(p)))
#define WRITE_REGISTER_UCHAR(p,c) (*((PCHAR)(p))) = (c)
INT abs(INT nm)
{
if(nm<0)
@ -67,32 +70,31 @@ BYTE bytesPerPixel(ULONG Format)
// FIXME: GDI bitmaps are supposed to be pixel-packed. Right now if the
// pixel size if < 1 byte we expand it to 1 byte for simplicities sake
if(Format==BMF_1BPP)
switch ( Format )
{
case BMF_1BPP:
return 1;
} else
if((Format==BMF_4BPP) || (Format==BMF_4RLE))
{
return 1;
} else
if((Format==BMF_8BPP) || (Format==BMF_8RLE))
{
return 1;
} else
if(Format==BMF_16BPP)
{
return 2;
} else
if(Format==BMF_24BPP)
{
return 3;
} else
if(Format==BMF_32BPP)
{
return 4;
}
return 0;
case BMF_4BPP:
case BMF_4RLE:
return 1;
case BMF_8BPP:
case BMF_8RLE:
return 1;
case BMF_16BPP:
return 2;
case BMF_24BPP:
return 3;
case BMF_32BPP:
return 4;
default:
return 0;
}
}
VOID vgaPreCalc()
@ -210,8 +212,8 @@ VOID vgaPutPixel(INT x, INT y, UCHAR c)
offset = xconv[x]+y80[y];
WRITE_PORT_UCHAR((PUCHAR)0x3ce,0x08);
WRITE_PORT_UCHAR((PUCHAR)0x3cf,maskbit[x]);
WRITE_PORT_UCHAR((PUCHAR)GRA_I,0x08);
WRITE_PORT_UCHAR((PUCHAR)GRA_D,maskbit[x]);
a = READ_REGISTER_UCHAR(vidmem + offset);
WRITE_REGISTER_UCHAR(vidmem + offset, c);
@ -224,8 +226,8 @@ VOID vgaPutByte(INT x, INT y, UCHAR c)
offset = xconv[x]+y80[y];
// Set the write mode
WRITE_PORT_UCHAR((PUCHAR)0x3ce,0x08);
WRITE_PORT_UCHAR((PUCHAR)0x3cf,0xff);
WRITE_PORT_UCHAR((PUCHAR)GRA_I,0x08);
WRITE_PORT_UCHAR((PUCHAR)GRA_D,0xff);
WRITE_REGISTER_UCHAR(vidmem + offset, c);
}
@ -234,13 +236,13 @@ VOID vgaGetByte(ULONG offset,
UCHAR *b, UCHAR *g,
UCHAR *r, UCHAR *i)
{
WRITE_PORT_USHORT((PUSHORT)0x03ce, 0x0304);
WRITE_PORT_USHORT((PUSHORT)GRA_I, 0x0304);
*i = READ_REGISTER_UCHAR(vidmem + offset);
WRITE_PORT_USHORT((PUSHORT)0x03ce, 0x0204);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x02);
*r = READ_REGISTER_UCHAR(vidmem + offset);
WRITE_PORT_USHORT((PUSHORT)0x03ce, 0x0104);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x01);
*g = READ_REGISTER_UCHAR(vidmem + offset);
WRITE_PORT_USHORT((PUSHORT)0x03ce, 0x0004);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x00);
*b = READ_REGISTER_UCHAR(vidmem + offset);
}
@ -302,8 +304,8 @@ BOOL vgaHLine(INT x, INT y, INT len, UCHAR c)
if(ileftpix>0)
{
// Write left pixels
WRITE_PORT_UCHAR((PUCHAR)0x3ce,0x08); // set the mask
WRITE_PORT_UCHAR((PUCHAR)0x3cf,startmasks[ileftpix]);
WRITE_PORT_UCHAR((PUCHAR)GRA_I,0x08); // set the mask
WRITE_PORT_UCHAR((PUCHAR)GRA_D,startmasks[ileftpix]);
a = READ_REGISTER_UCHAR(vidmem + pre1);
WRITE_REGISTER_UCHAR(vidmem + pre1, c);
@ -317,28 +319,28 @@ BOOL vgaHLine(INT x, INT y, INT len, UCHAR c)
midpre1=xconv[x]+y80[y];
// Set mask to all pixels in byte
WRITE_PORT_UCHAR((PUCHAR)0x3ce, 0x08);
WRITE_PORT_UCHAR((PUCHAR)0x3cf, 0xff);
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x08);
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0xff);
memset(vidmem+midpre1, c, imidpix); // write middle pixels, no need to read in latch because of the width
}
if(irightpix>0)
if ( irightpix > 0 )
{
x=orgx+len-irightpix;
#if 0
for(i=x; i<x+irightpix; i++)
{
vgaPutPixel(i, y, c);
}
/* pre1=xconv[x]+y80[y];
#else
pre1=xconv[x]+y80[y];
// Write right pixels
WRITE_PORT_UCHAR((PUCHAR)0x3ce,0x08); // set the mask bits
WRITE_PORT_UCHAR((PUCHAR)0x3cf, endmasks[irightpix]);
WRITE_PORT_UCHAR((PUCHAR)GRA_I,0x08); // set the mask bits
WRITE_PORT_UCHAR((PUCHAR)GRA_D, endmasks[irightpix]);
a = READ_REGISTER_UCHAR(vidmem + pre1);
WRITE_REGISTER_UCHAR(vidmem + pre1, c); */
WRITE_REGISTER_UCHAR(vidmem + pre1, c);
#endif
}
return TRUE;
@ -351,8 +353,12 @@ BOOL vgaVLine(INT x, INT y, INT len, UCHAR c)
offset = xconv[x]+y80[y];
WRITE_PORT_UCHAR((PUCHAR)0x3ce,0x08); // set the mask
WRITE_PORT_UCHAR((PUCHAR)0x3cf,maskbit[x]);
#ifdef VGA_PERF
vgaSetBitMaskRegister ( maskbit[x] );
#else
WRITE_PORT_UCHAR((PUCHAR)GRA_I,0x08); // set the mask
WRITE_PORT_UCHAR((PUCHAR)GRA_D,maskbit[x]);
#endif
for(i=y; i<y+len; i++)
{
@ -609,9 +615,141 @@ void DIB_TransparentBltToVGA(int x, int y, int w, int h, void *b, int Source_lDe
}
}
// This algorithm goes from left to right, storing each 4BPP pixel
// in an entire byte.
void FASTCALL
vgaReadScan ( int x, int y, int w, void *b )
{
unsigned char *vp, *vpP;
unsigned char data, mask, maskP;
unsigned char *bp;
unsigned char plane_mask;
int byte_per_line = SCREEN_X >> 3;
int plane, i;
ASSIGNVP4(x, y, vpP)
ASSIGNMK4(x, y, maskP)
get_masks(x, w);
WRITE_PORT_USHORT((PUSHORT)GRA_I, 0x0005); // read mode 0
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x04); // read map select
memset ( b, 0, w );
for ( plane=0, plane_mask=1; plane < 4; plane++, plane_mask<<=1 )
{
WRITE_PORT_UCHAR((PUCHAR)GRA_D, plane); // read map select
vp = vpP;
bp = b;
if ( leftMask )
{
mask = maskP;
data = *vp++;
do
{
if (data & mask)
*bp |= plane_mask;
bp++;
mask >>= 1;
} while (mask & leftMask);
}
if (byteCounter)
{
for (i=byteCounter; i>0; i--)
{
data = *vp++;
if (data & 0x80) *bp |= plane_mask;
bp++;
if (data & 0x40) *bp |= plane_mask;
bp++;
if (data & 0x20) *bp |= plane_mask;
bp++;
if (data & 0x10) *bp |= plane_mask;
bp++;
if (data & 0x08) *bp |= plane_mask;
bp++;
if (data & 0x04) *bp |= plane_mask;
bp++;
if (data & 0x02) *bp |= plane_mask;
bp++;
if (data & 0x01) *bp |= plane_mask;
bp++;
}
}
if (rightMask)
{
mask = 0x80;
data = *vp;
do
{
if (data & mask)
*bp |= plane_mask;
bp++;
mask >>= 1;
} while (mask & rightMask);
}
}
// We don't need this if the next call is a DFB blt to VGA (as in the case of moving the mouse pointer)
//WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x05); // write mode 2
//WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x02);
//WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x03); // replace
//WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x00);
}
// This algorithm goes from left to right
// It stores each 4BPP pixel in an entire byte.
void FASTCALL
vgaWriteScan ( int x, int y, int w, void *b )
{
unsigned char *bp;
unsigned char *vp;
unsigned char init_mask;
volatile unsigned char dummy;
int byte_per_line;
int i, j, off, init_off = x&7;
bp = b;
ASSIGNVP4(x, y, vp)
ASSIGNMK4(x, y, init_mask)
byte_per_line = SCREEN_X >> 3;
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x05); // write mode 2
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x02);
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x03); // replace
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x00);
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x08); // bit mask
//DbgPrint("vgaWriteScan(%i,%i,%i...)\n",x,y,w);
for ( j = 0; j < 8; j++ )
{
unsigned int mask = 0x80 >> j;
//DbgPrint("j=%i\n",j);
WRITE_PORT_UCHAR ( (PUCHAR)GRA_D, (unsigned char)mask );
i = j - init_off;
off = 0;
if ( j < init_off )
i += 8, off++;
while ( i < w )
{
//DbgPrint("(%i)",i);
dummy = vp[off];
//DbgPrint(".");
dummy = bp[i];
//DbgPrint(".");
vp[off] = dummy;
//DbgPrint(".");
i += 8;
off++;
}
//DbgPrint("\n");
}
}
void DFB_BltFromVGA(int x, int y, int w, int h, void *b, int bw)
// This algorithm goes from goes from left to right, and inside that loop, top to bottom.
// This algorithm goes from left to right, and inside that loop, top to bottom.
// It also stores each 4BPP pixel in an entire byte.
{
unsigned char *vp, *vpY, *vpP;
@ -630,30 +768,38 @@ void DFB_BltFromVGA(int x, int y, int w, int h, void *b, int bw)
// clear buffer
bp=b;
for (j=h; j>0; j--) {
for (j=h; j>0; j--)
{
memset(bp, 0, w);
bp += bw;
}
for (plane=0, plane_mask=1; plane<4; plane++, plane_mask<<=1) {
for ( plane=0, plane_mask=1; plane < 4; plane++, plane_mask<<=1 )
{
WRITE_PORT_UCHAR((PUCHAR)GRA_D, plane); // read map select
vpY = vpP;
bpY = b;
for (j=h; j>0; j--) {
for ( j=h; j>0; j-- )
{
vp = vpY;
bp = bpY;
if (leftMask) {
if ( leftMask )
{
mask = maskP;
data = *vp++;
do {
if (data & mask) *bp |= plane_mask;
do
{
if (data & mask)
*bp |= plane_mask;
bp++;
mask >>= 1;
} while (mask & leftMask);
}
if (byteCounter) {
for (i=byteCounter; i>0; i--) {
if (byteCounter)
{
for (i=byteCounter; i>0; i--)
{
data = *vp++;
if (data & 0x80) *bp |= plane_mask;
bp++;
@ -673,10 +819,12 @@ void DFB_BltFromVGA(int x, int y, int w, int h, void *b, int bw)
bp++;
}
}
if (rightMask) {
if (rightMask)
{
mask = 0x80;
data = *vp;
do {
do
{
if (data & mask) *bp |= plane_mask;
bp++;
mask >>= 1;
@ -696,7 +844,7 @@ void DFB_BltFromVGA(int x, int y, int w, int h, void *b, int bw)
void DFB_BltToVGA(int x, int y, int w, int h, void *b, int bw)
// This algorithm goes from goes from left to right, and inside that loop, top to bottom.
// This algorithm goes from left to right, and inside that loop, top to bottom.
// It also stores each 4BPP pixel in an entire byte.
{
unsigned char *bp, *bpX;
@ -717,18 +865,21 @@ void DFB_BltToVGA(int x, int y, int w, int h, void *b, int bw)
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x00);
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x08); // bit mask
for (i=w; i>0; i--) {
for (i=w; i>0; i--)
{
WRITE_PORT_UCHAR((PUCHAR)GRA_D, mask);
bp = bpX;
vp = vpX;
for (j=h; j>0; j--) {
for (j=h; j>0; j--)
{
dummy = *vp;
*vp = *bp;
bp += bw;
vp += byte_per_line;
}
bpX++;
if ((mask >>= 1) == 0) {
if ((mask >>= 1) == 0)
{
vpX++;
mask = 0x80;
}
@ -758,11 +909,13 @@ void DFB_BltToVGA_Transparent(int x, int y, int w, int h, void *b, int bw, char
WRITE_PORT_UCHAR((PUCHAR)GRA_D, 0x00);
WRITE_PORT_UCHAR((PUCHAR)GRA_I, 0x08); // bit mask
for (i=w; i>0; i--) {
for (i=w; i>0; i--)
{
WRITE_PORT_UCHAR((PUCHAR)GRA_D, mask);
bp = bpX;
vp = vpX;
for (j=h; j>0; j--) {
for (j=h; j>0; j--)
{
if (*bp != Trans)
{
dummy = *vp;
@ -772,7 +925,8 @@ void DFB_BltToVGA_Transparent(int x, int y, int w, int h, void *b, int bw, char
vp += byte_per_line;
}
bpX++;
if ((mask >>= 1) == 0) {
if ((mask >>= 1) == 0)
{
vpX++;
mask = 0x80;
}