Fold in Steve Peltz's text output routines from original MacPad, cleaned up for GCC. Much faster now.
This commit is contained in:
Thomas Cherryhomes
parent
87fdbb7dd5
commit
2a6d0bb34e
306
screen.c
306
screen.c
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@ -37,6 +37,8 @@ SysEnvRec environment;
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Handle menuBar;
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RGBColor current_foreground;
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RGBColor current_background;
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int windowWidth;
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int windowHeight;
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/**
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* screen_init() - Set up the screen
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@ -86,6 +88,8 @@ void screen_init(void)
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windowRect.right+=5; /* scooch */
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}
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windowWidth=windowRect.right-windowRect.left;
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windowHeight=windowRect.bottom-windowRect.top;
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verticalScaleFactor=((double)windowRect.bottom-(double)windowRect.top)/(double)512.0;
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if (SysEnvirons(1,&environment) == noErr)
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@ -318,213 +322,137 @@ void screen_line_draw(padPt* Coord1, padPt* Coord2)
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*/
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void screen_char_draw(padPt* Coord, unsigned char* ch, unsigned char count)
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{
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short offset; /* due to negative offsets */
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unsigned short x; /* Current X and Y coordinates */
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unsigned short y;
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unsigned short* px; /* Pointers to X and Y coordinates used for actual plotting */
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unsigned short* py;
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unsigned char i; /* current character counter */
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unsigned char a; /* current character byte */
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unsigned char j,k; /* loop counters */
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char b; /* current character row bit signed */
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unsigned char width=8;
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unsigned char height=16;
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unsigned char FONT_SIZE_X=8;
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unsigned char FONT_SIZE_Y=16;
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unsigned short deltaX=1;
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unsigned short deltaY=1;
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RGBColor mainColor;
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RGBColor altColor;
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unsigned char *p;
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unsigned char* curfont;
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switch(CurMem)
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{
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case M0:
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curfont=font;
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offset=-32;
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break;
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case M1:
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curfont=font;
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offset=64;
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break;
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case M2:
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curfont=fontm23;
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offset=-32;
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break;
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case M3:
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curfont=fontm23;
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offset=32;
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break;
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}
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BitMap drawMap;
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char drawBits[64][16];
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char* chPt;
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char* drawFrom;
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char* drawTo;
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int offset;
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short Mode;
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Point charSize;
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Rect fromRect;
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Rect toRect;
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int chNum;
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int direction;
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int row;
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SetPort(win);
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if (CurMode==ModeRewrite)
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{
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altColor.red=current_background.red;
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altColor.green=current_background.green;
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altColor.blue=current_background.blue;
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}
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else if (CurMode==ModeInverse)
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{
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altColor.red=current_foreground.red;
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altColor.green=current_foreground.green;
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altColor.blue=current_foreground.blue;
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/* Set up staging bitmap */
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drawMap.baseAddr=&drawBits[0][0];
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drawMap.rowBytes=64;
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drawMap.bounds.top=0;
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drawMap.bounds.bottom=16;
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drawMap.bounds.left=0;
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drawMap.bounds.right=512;
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}
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if (CurMode==ModeErase || CurMode==ModeInverse)
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/* Select appropriate font memory */
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switch (CurMem)
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{
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mainColor.red=current_background.red;
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mainColor.green=current_background.green;
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mainColor.blue=current_background.blue;
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}
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else
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{
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mainColor.red=current_foreground.red;
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mainColor.green=current_foreground.green;
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mainColor.blue=current_foreground.blue;
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case M0:
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chPt = font;
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offset = -32;
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break;
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case M1:
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chPt = font;
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offset = 64;
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break;
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case M2:
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chPt = fontm23;
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offset = -32;
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break;
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case M3:
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chPt = fontm23;
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offset = 32;
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break;
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}
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x=screen_scale_x(Coord->x&0x1FF);
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/* Select appropriate bitmap transfer mode */
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switch(CurMode)
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{
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case ModeWrite:
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Mode = srcOr;
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break;
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case ModeRewrite:
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Mode = srcCopy;
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break;
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case ModeErase:
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Mode = srcBic;
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break;
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case ModeInverse:
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Mode = notSrcCopy;
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break;
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}
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/* Set up character size */
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charSize.h = CharWide;
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charSize.v = CharHigh;
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if (ModeBold)
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y=screen_scale_y((Coord->y)+30&0x1FF);
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else
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y=screen_scale_y((Coord->y)+15&0x1FF);
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if (FastText==padF)
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{
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goto chardraw_with_fries;
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charSize.h<<=1;
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charSize.v<<=1;
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}
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/* the diet chardraw routine - fast text output. */
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for (i=0;i<count;++i)
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/* Set up transfer rects */
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fromRect.top=0;
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fromRect.bottom=16;
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fromRect.left=0;
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fromRect.right = count << 3;
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toRect.bottom = screen_scale_y(Coord->y+1);
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toRect.top = toRect.bottom - charSize.v;
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if (Reverse)
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{
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a=*ch;
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++ch;
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a+=offset;
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p=&curfont[FONTPTR(a)];
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for (j=0;j<FONT_SIZE_Y;++j)
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{
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b=*p;
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for (k=0;k<FONT_SIZE_X;++k)
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{
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if (b<0) /* check sign bit. */
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{
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RGBForeColor(&mainColor);
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MoveTo(x,y);
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Line(0,0);
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}
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++x;
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b<<=1;
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}
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++y;
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x-=width;
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++p;
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}
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x+=width;
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y-=height;
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chNum = count - 1;
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direction = -1;
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toRect.right = screen_scale_x(Coord->x);
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toRect.left = toRect.right - charSize.h * count;
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}
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else /* forward */
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{
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chNum=0;
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direction = 1;
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toRect.left = screen_scale_x(Coord->x);
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toRect.right = toRect.left + charSize.h * count;
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}
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return;
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chardraw_with_fries:
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if (Rotate)
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/* plot the bitmap. */
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while (count--)
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{
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deltaX=-abs(deltaX);
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width=-abs(width);
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px=&y;
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py=&x;
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}
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else
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{
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px=&x;
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py=&y;
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}
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if (ModeBold)
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{
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deltaX = deltaY = 2;
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width<<=1;
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height<<=1;
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}
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for (i=0;i<count;++i)
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{
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a=*ch;
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++ch;
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a+=offset;
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p=&curfont[FONTPTR(a)];
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for (j=0;j<FONT_SIZE_Y;++j)
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{
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b=*p;
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if (Rotate)
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{
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px=&y;
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py=&x;
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}
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else
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{
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px=&x;
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py=&y;
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}
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for (k=0;k<FONT_SIZE_X;++k)
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{
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if (b<0) /* check sign bit. */
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{
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if (ModeBold)
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{
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RGBForeColor(&mainColor);
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MoveTo(*px+1,*py);
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Line(0,0);
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MoveTo(*px,*py+1);
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Line(0,0);
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MoveTo(*px+1,*py+1);
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Line(0,0);
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}
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MoveTo(*px,*py);
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}
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else
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{
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if (CurMode==ModeInverse || CurMode==ModeRewrite)
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{
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if (ModeBold)
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{
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RGBForeColor(&altColor);
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MoveTo(*px+1,*py);
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MoveTo(*px,*py+1);
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MoveTo(*px+1,*py+1);
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}
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MoveTo(*px,*py);
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}
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}
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x += deltaX;
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b<<=1;
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}
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y+=deltaY;
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x-=width;
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++p;
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}
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Coord->x+=width;
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x+=width;
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y-=height;
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drawFrom = chPt + ((*ch++ + offset) << 4);
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drawTo = &drawBits[0][chNum];
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chNum+=direction;
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for (row=1; row <= 16; row++)
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{
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*drawTo = *drawFrom++;
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drawTo += 64;
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}
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}
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return;
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/* Finally, blit it to the window. */
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CopyBits(&drawMap, &(win->portBits), &fromRect, &toRect, Mode, NULL);
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if (toRect.top < 0)
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{
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toRect.top = windowHeight;
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toRect.bottom+=windowHeight;
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CopyBits(&drawMap, &(win->portBits), &fromRect, &toRect, Mode, NULL);
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}
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if (toRect.right > windowWidth)
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{
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toRect.right -= windowWidth;
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toRect.left -= windowWidth;
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CopyBits(&drawMap, &(win->portBits), &fromRect, &toRect, Mode, NULL);
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if (toRect.bottom > windowHeight)
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{
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toRect.bottom -= windowHeight;
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toRect.top -= windowHeight;
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CopyBits(&drawMap, &(win->portBits), &fromRect, &toRect, Mode, NULL);
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}
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}
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}
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/**
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