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Improved bitblt and painting performance
Initial mouse pointer code svn path=/trunk/; revision=1405
This commit is contained in:
Jason Filby
parent
06bf88e073
commit
76ba7eadb1
1 changed files with 57 additions and 105 deletions
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@ -2,115 +2,67 @@
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#include "../vgavideo/vgavideo.h"
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#include "brush.h"
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#include "../../../../ntoskrnl/include/internal/i386/io.h"
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BOOL VGADDIFillSolid(SURFOBJ *Surface, RECTL Dimensions, ULONG iColor)
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{
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unsigned char a, b, mask;
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unsigned int pre1, i, j, newx;
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unsigned int orgpre1, orgx, midpre1;
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unsigned long leftpixs, midpixs, rightpixs, temp, len;
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long calc;
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int x = Dimensions.left;
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int y = Dimensions.top;
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int w = Dimensions.right - Dimensions.left;
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int h = Dimensions.bottom - Dimensions.top;
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unsigned char *vp, *vpX;
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volatile unsigned char dummy;
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int byte_per_line;
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int i;
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orgx=Dimensions.left;
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len=Dimensions.right - Dimensions.left;
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Dimensions.bottom++;
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ASSIGNVP4(x, y, vpX)
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get_masks(x, w);
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byte_per_line = SCREEN_X >> 3;
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outb(GRA_I, 0x05); /* write mode 2 */
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saved_GC_mode = inb(GRA_D);
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outb(GRA_D, 0x02);
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outb(GRA_I, 0x03); /* replace */
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saved_GC_fun = inb(GRA_D);
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outb(GRA_D, 0x00);
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outb(GRA_I, 0x08); /* bit mask */
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saved_GC_mask = inb(GRA_D);
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if (leftMask) {
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outb(GRA_D, leftMask); /* bit mask */
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/* write to video */
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vp = vpX;
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for (i=h; i>0; i--) {
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dummy = *vp; *vp = iColor;
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vp += byte_per_line;
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}
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vpX++;
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}
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if (byteCounter) {
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outb(GRA_D, 0xff); /* bit mask */
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/* write to video */
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vp = vpX;
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for (i=h; i>0; i--) {
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memset(vp, iColor, byteCounter);
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vp += byte_per_line;
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}
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vpX += byteCounter;
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}
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if (rightMask) {
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outb(GRA_D, rightMask); /* bit mask */
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/* write to video */
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vp = vpX;
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for (i=h; i>0; i--) {
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dummy = *vp; *vp = iColor;
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vp += byte_per_line;
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}
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}
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/* reset GC register */
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outb(GRA_D, saved_GC_mask);
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outb(GRA_I, 0x03);
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outb(GRA_D, saved_GC_fun);
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outb(GRA_I, 0x05);
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outb(GRA_D, saved_GC_mode);
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if(len<8)
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{
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for (i=Dimensions.left; i<Dimensions.left+len; i++)
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vgaPutPixel(i, Dimensions.top, iColor);
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} else {
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leftpixs=Dimensions.left;
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while(leftpixs>8) leftpixs-=8;
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temp = len;
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midpixs = 0;
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while(temp>7)
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{
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temp-=8;
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midpixs++;
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}
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if((temp>=0) && (midpixs>0)) midpixs--;
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pre1=xconv[Dimensions.left]+y80[Dimensions.top];
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orgpre1=pre1;
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// Left
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if(leftpixs==8) {
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// Left edge should be an entire middle bar
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Dimensions.left=orgx;
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leftpixs=0;
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}
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else if(leftpixs>0)
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{
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WRITE_PORT_UCHAR((PUCHAR)0x3ce,0x08); // Set
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WRITE_PORT_UCHAR((PUCHAR)0x3cf,startmasks[leftpixs]); // the MASK
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for(j=Dimensions.top; j<Dimensions.bottom; j++)
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{
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a = READ_REGISTER_UCHAR(vidmem + pre1);
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WRITE_REGISTER_UCHAR(vidmem + pre1, iColor);
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pre1+=80;
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}
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// Middle
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Dimensions.left=orgx+(8-leftpixs)+leftpixs;
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} else {
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// leftpixs == 0
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midpixs+=1;
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}
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if(midpixs>0)
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{
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midpre1=xconv[Dimensions.left]+y80[Dimensions.top];
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// Set mask to all pixels in byte
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WRITE_PORT_UCHAR((PUCHAR)0x3ce, 0x08);
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WRITE_PORT_UCHAR((PUCHAR)0x3cf, 0xff);
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for(j=Dimensions.top; j<Dimensions.bottom; j++)
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{
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memset(vidmem+midpre1, iColor, midpixs);
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midpre1+=80;
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}
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}
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rightpixs = len - ((midpixs*8) + leftpixs);
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if((rightpixs>0))
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{
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Dimensions.left=(orgx+len)-rightpixs;
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// Go backwards till we reach the 8-byte boundary
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while(mod(Dimensions.left, 8)!=0) { Dimensions.left--; rightpixs++; }
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while(rightpixs>7)
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{
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// This is a BAD case as this should have been a midpixs
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for(j=Dimensions.top; j<Dimensions.bottom; j++)
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vgaPutByte(Dimensions.left, j, iColor);
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rightpixs-=8;
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Dimensions.left+=8;
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}
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pre1=xconv[Dimensions.left]+y80[Dimensions.top];
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WRITE_PORT_UCHAR((PUCHAR)0x3ce,0x08); // Set
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WRITE_PORT_UCHAR((PUCHAR)0x3cf,endmasks[rightpixs]); // the MASK
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for(j=Dimensions.top; j<Dimensions.bottom; j++)
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{
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a = READ_REGISTER_UCHAR(vidmem + pre1);
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WRITE_REGISTER_UCHAR(vidmem + pre1, iColor);
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pre1+=80;
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}
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}
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}
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return TRUE;
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return TRUE;
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}
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BOOL VGADDIPaintRgn(SURFOBJ *Surface, CLIPOBJ *ClipRegion, ULONG iColor, MIX Mix,
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