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fixed several bugs, simplified some calculations. This appears to have broken framerect drawing ( zoomin on min/max buttons ), but I think that was expecting the wrong behavior.

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svn path=/trunk/; revision=5519
This commit is contained in:
Royce Mitchell III 2003-08-11 03:51:44 +00:00
parent 83399f1ec0
commit 4e4e603189
3 changed files with 57 additions and 61 deletions
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24
reactos/drivers/dd/vga/display/objects/paint.c
View file

@ -17,17 +17,23 @@ BOOL VGADDIFillSolid(SURFOBJ *Surface, RECTL Dimensions, ULONG iColor)
DPRINT("VGADDIFillSolid: x:%d, y:%d, w:%d, h:%d\n", x, y, w, h);
// Swap dimensions so that x, y are at topmost left
if(Dimensions.right < Dimensions.left) {
if ( Dimensions.right < Dimensions.left )
{
x = Dimensions.right;
x2 = Dimensions.left;
} else {
}
else
{
x2 = Dimensions.right;
x = Dimensions.left;
}
if(Dimensions.bottom < Dimensions.top) {
if ( Dimensions.bottom < Dimensions.top )
{
y = Dimensions.bottom;
y2 = Dimensions.top;
} else {
}
else
{
y2 = Dimensions.bottom;
y = Dimensions.top;
}
@ -49,18 +55,20 @@ BOOL VGADDIFillSolid(SURFOBJ *Surface, RECTL Dimensions, ULONG iColor)
vgaVLine(i, y, h, iColor);
// Otherwise, use the optimized code
} else {
}
else
{
// Calculate the left mask pixels, middle bytes and right mask pixel
leftpix = 8-mod(x, 8);
rightpix = mod(x+w, 8);
ileftpix = 7 - mod8(x-1);
rightpix = mod8(x+w);
midpix = (w-leftpix-rightpix) / 8;
ileftpix = leftpix;
irightpix = rightpix;
imidpix = midpix;
pre1=xconv[x-(8-ileftpix)]+y80[y];
pre1 = xconv[(x-1)&~7] + y80[y];
orgpre1=pre1;
if ( ileftpix > 0 )

49
reactos/drivers/dd/vga/display/vgavideo/vgavideo.c
View file

@ -58,11 +58,11 @@ div_t div(int num, int denom)
return r;
}
int mod(int num, int denom)
/*int mod(int num, int denom)
{
div_t dvt = div(num, denom);
return dvt.rem;
}
}*/
BYTE bytesPerPixel(ULONG Format)
{
@ -109,17 +109,15 @@ VOID vgaPreCalc()
startmasks[5] = 31;
startmasks[6] = 63;
startmasks[7] = 127;
startmasks[8] = 255;
endmasks[0] = 128;
endmasks[1] = 192;
endmasks[2] = 224;
endmasks[3] = 240;
endmasks[4] = 248;
endmasks[5] = 252;
endmasks[6] = 254;
endmasks[7] = 255;
endmasks[8] = 255;
endmasks[0] = 0;
endmasks[1] = 128;
endmasks[2] = 192;
endmasks[3] = 224;
endmasks[4] = 240;
endmasks[5] = 248;
endmasks[6] = 252;
endmasks[7] = 254;
for(j=0; j<80; j++)
{
@ -287,17 +285,11 @@ BOOL vgaHLine(INT x, INT y, INT len, UCHAR c)
}
// Calculate the left mask pixels, middle bytes and right mask pixel
ileftpix = 8-mod(x, 8);
irightpix = mod(x+len, 8);
ileftpix = 7 - mod8(x-1);
irightpix = mod8(x+len);
imidpix = (len-ileftpix-irightpix) / 8;
if(ileftpix == 8)
{
ileftpix = 0;
imidpix++;
}
pre1=xconv[x-(8-ileftpix)]+y80[y];
pre1 = xconv[(x-1)&~7] + y80[y];
orgpre1=pre1;
// Left
@ -327,12 +319,6 @@ BOOL vgaHLine(INT x, INT y, INT len, UCHAR c)
if ( irightpix > 0 )
{
x = orgx + len - irightpix;
#if 0
for(i=x; i<x+irightpix; i++)
{
vgaPutPixel(i, y, c);
}
#else
pre1 = xconv[x] + y80[y];
// Write right pixels
@ -340,7 +326,6 @@ BOOL vgaHLine(INT x, INT y, INT len, UCHAR c)
WRITE_PORT_UCHAR((PUCHAR)GRA_D, endmasks[irightpix]);
a = READ_REGISTER_UCHAR(vidmem + pre1);
WRITE_REGISTER_UCHAR(vidmem + pre1, c);
#endif
}
return TRUE;
@ -499,7 +484,7 @@ void DIB_BltFromVGA(int x, int y, int w, int h, void *b, int Dest_lDelta)
BYTE b1, b2;
// Check if the width is odd
if(mod(w, 2)>0)
if(mod2(w)>0)
{
edgePixel = TRUE;
x2 -= 1;
@ -587,7 +572,7 @@ void DIB_TransparentBltToVGA(int x, int y, int w, int h, void *b, int Source_lDe
BYTE b1, b2;
// Check if the width is odd
if(mod(w, 2)>0)
if(mod2(w)>0)
{
edgePixel = TRUE;
x2 -= 1;
@ -949,7 +934,7 @@ void DFB_BltToDIB(int x, int y, int w, int h, void *b, int bw, void *bdib, int d
for (i=w; i>0; i--) {
// determine the bit shift for the DIB pixel
dib_shift = mod(w-i, 2);
dib_shift = mod2(w-i);
if(dib_shift > 0) dib_shift = 4;
dibTmp = dib;
@ -978,7 +963,7 @@ void DIB_BltToDFB(int x, int y, int w, int h, void *b, int bw, void *bdib, int d
for (i=w; i>0; i--) {
// determine the bit shift for the DIB pixel
dib_shift = mod(w-i, 2);
dib_shift = mod2(w-i);
if(dib_shift > 0) {
dib_shift = 0;
dib_and = 0x0f;

3
reactos/drivers/dd/vga/display/vgavideo/vgavideo.h
View file

@ -66,3 +66,6 @@ BOOL VGADDIIntersectRect(PRECTL prcDst, PRECTL prcSrc1, PRECTL prcSrc2);
#define ASSIGNMK4(x, y, mask) mask = 0x80 >> ((x) & 7);
void get_masks(int x, int w);
#define mod8(n) ((n)&7)
#define mod2(n) ((n)&1)