487 lines
8.4 KiB
C++
487 lines
8.4 KiB
C++
#include "font.h"
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#include <math.h>
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int PIXELMETHODS_CLASS::drawtext_outline(int x, int y, const char *s, int r, int g, int b, int a)
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{
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drawtext(x-1, y-1, s, 0, 0, 0, 120);
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drawtext(x+1, y+1, s, 0, 0, 0, 120);
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drawtext(x-1, y+1, s, 0, 0, 0, 120);
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drawtext(x+1, y-1, s, 0, 0, 0, 120);
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return drawtext(x, y, s, r, g, b, a);
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}
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int PIXELMETHODS_CLASS::drawtext(int x, int y, const char *s, int r, int g, int b, int a)
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{
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if(!strlen(s))
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return 0;
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int width, height;
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int invert = 0;
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int oR = r, oG = g, oB = b;
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int characterX = x, characterY = y;
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int startX = characterX;
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for (; *s; s++)
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{
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if (*s == '\n')
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{
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characterX = startX;
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characterY += FONT_H+2;
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}
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else if (*s == '\x0F')
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{
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if(!s[1] || !s[2] || !s[3]) break;
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oR = r;
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oG = g;
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oB = b;
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r = (unsigned char)s[1];
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g = (unsigned char)s[2];
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b = (unsigned char)s[3];
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s += 3;
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}
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else if (*s == '\x0E')
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{
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r = oR;
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g = oG;
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b = oB;
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}
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else if (*s == '\x01')
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{
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invert = !invert;
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r = 255-r;
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g = 255-g;
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b = 255-b;
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}
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else if (*s == '\b')
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{
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if(!s[1]) break;
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switch (s[1])
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{
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case 'w':
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r = g = b = 255;
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break;
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case 'g':
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r = g = b = 192;
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break;
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case 'o':
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r = 255;
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g = 216;
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b = 32;
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break;
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case 'r':
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r = 255;
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g = b = 0;
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break;
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case 'l':
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r = 255;
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g = b = 75;
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break;
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case 'b':
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r = g = 0;
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b = 255;
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break;
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case 't':
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b = 255;
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g = 170;
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r = 32;
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break;
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}
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if(invert)
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{
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r = 255-r;
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g = 255-g;
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b = 255-b;
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}
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s++;
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}
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else
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{
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characterX = drawchar(characterX, characterY, *(unsigned char *)s, r, g, b, a);
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}
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}
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return x;
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}
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int PIXELMETHODS_CLASS::drawtext(int x, int y, std::string s, int r, int g, int b, int a)
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{
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return drawtext(x, y, s.c_str(), r, g, b, a);
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}
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int PIXELMETHODS_CLASS::drawchar(int x, int y, int c, int r, int g, int b, int a)
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{
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int i, j, w, bn = 0, ba = 0;
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unsigned char *rp = font_data + font_ptrs[c];
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w = *(rp++);
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for (j=0; j<FONT_H; j++)
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for (i=0; i<w; i++)
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{
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if (!bn)
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{
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ba = *(rp++);
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bn = 8;
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}
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blendpixel(x+i, y+j, r, g, b, ((ba&3)*a)/3);
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ba >>= 2;
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bn -= 2;
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}
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return x + w;
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}
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int PIXELMETHODS_CLASS::addchar(int x, int y, int c, int r, int g, int b, int a)
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{
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int i, j, w, bn = 0, ba = 0;
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unsigned char *rp = font_data + font_ptrs[c];
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w = *(rp++);
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for (j=0; j<FONT_H; j++)
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for (i=0; i<w; i++)
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{
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if (!bn)
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{
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ba = *(rp++);
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bn = 8;
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}
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{
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addpixel(x+i, y+j, r, g, b, ((ba&3)*a)/3);
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}
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ba >>= 2;
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bn -= 2;
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}
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return x + w;
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}
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TPT_INLINE void PIXELMETHODS_CLASS::xor_pixel(int x, int y)
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{
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int c;
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if (x<0 || y<0 || x>=XRES || y>=YRES)
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return;
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c = vid[y*(VIDXRES)+x];
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c = PIXB(c) + 3*PIXG(c) + 2*PIXR(c);
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if (c<512)
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vid[y*(VIDXRES)+x] = PIXPACK(0xC0C0C0);
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else
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vid[y*(VIDXRES)+x] = PIXPACK(0x404040);
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}
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void PIXELMETHODS_CLASS::blendpixel(int x, int y, int r, int g, int b, int a)
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{
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pixel t;
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if (x<0 || y<0 || x>=VIDXRES || y>=VIDYRES)
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return;
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if (a!=255)
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{
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t = vid[y*(VIDXRES)+x];
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r = (a*r + (255-a)*PIXR(t)) >> 8;
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g = (a*g + (255-a)*PIXG(t)) >> 8;
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b = (a*b + (255-a)*PIXB(t)) >> 8;
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}
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vid[y*(VIDXRES)+x] = PIXRGB(r,g,b);
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}
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void PIXELMETHODS_CLASS::addpixel(int x, int y, int r, int g, int b, int a)
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{
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pixel t;
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if (x<0 || y<0 || x>=VIDXRES || y>=VIDYRES)
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return;
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t = vid[y*(VIDXRES)+x];
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r = (a*r + 255*PIXR(t)) >> 8;
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g = (a*g + 255*PIXG(t)) >> 8;
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b = (a*b + 255*PIXB(t)) >> 8;
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if (r>255)
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r = 255;
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if (g>255)
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g = 255;
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if (b>255)
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b = 255;
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vid[y*(VIDXRES)+x] = PIXRGB(r,g,b);
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}
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void PIXELMETHODS_CLASS::xor_line(int x1, int y1, int x2, int y2)
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{
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int cp=abs(y2-y1)>abs(x2-x1), x, y, dx, dy, sy;
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float e, de;
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if (cp)
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{
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y = x1;
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x1 = y1;
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y1 = y;
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y = x2;
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x2 = y2;
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y2 = y;
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}
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if (x1 > x2)
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{
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y = x1;
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x1 = x2;
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x2 = y;
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y = y1;
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y1 = y2;
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y2 = y;
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}
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dx = x2 - x1;
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dy = abs(y2 - y1);
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e = 0.0f;
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if (dx)
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de = dy/(float)dx;
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else
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de = 0.0f;
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y = y1;
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sy = (y1<y2) ? 1 : -1;
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for (x=x1; x<=x2; x++)
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{
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if (cp)
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xor_pixel(y, x);
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else
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xor_pixel(x, y);
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e += de;
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if (e >= 0.5f)
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{
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y += sy;
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e -= 1.0f;
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}
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}
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}
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void PIXELMETHODS_CLASS::xor_rect(int x, int y, int w, int h)
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{
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int i;
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for (i=0; i<w; i+=2)
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{
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xor_pixel(x+i, y);
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}
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if (h != 1)
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{
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if (h%2 == 1) i = 2;
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else i = 1;
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for (; i<w; i+=2)
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{
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xor_pixel(x+i, y+h-1);
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}
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}
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for (i=2; i<h; i+=2)
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{
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xor_pixel(x, y+i);
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}
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if (w != 1)
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{
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if (w%2 == 1) i = 2;
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else i = 1;
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for (; i<h-1; i+=2)
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{
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xor_pixel(x+w-1, y+i);
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}
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}
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}
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void PIXELMETHODS_CLASS::xor_bitmap(unsigned char * bitmap, int x, int y, int w, int h)
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{
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for(int x1 = 0; x1 < w; x1++)
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{
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for(int y1 = 0; y1 < h; y1++)
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{
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if(bitmap[y1*w+x1])
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xor_pixel(x+x1, y+y1);
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}
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}
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}
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void PIXELMETHODS_CLASS::draw_line(int x1, int y1, int x2, int y2, int r, int g, int b, int a)
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{
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int cp=abs(y2-y1)>abs(x2-x1), x, y, dx, dy, sy;
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float e, de;
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if (cp)
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{
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y = x1;
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x1 = y1;
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y1 = y;
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y = x2;
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x2 = y2;
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y2 = y;
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}
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if (x1 > x2)
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{
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y = x1;
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x1 = x2;
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x2 = y;
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y = y1;
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y1 = y2;
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y2 = y;
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}
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dx = x2 - x1;
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dy = abs(y2 - y1);
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e = 0.0f;
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if (dx)
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de = dy/(float)dx;
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else
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de = 0.0f;
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y = y1;
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sy = (y1<y2) ? 1 : -1;
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for (x=x1; x<=x2; x++)
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{
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if (cp)
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blendpixel(y, x, r, g, b, a);
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else
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blendpixel(x, y, r, g, b, a);
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e += de;
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if (e >= 0.5f)
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{
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y += sy;
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e -= 1.0f;
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}
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}
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}
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void PIXELMETHODS_CLASS::drawrect(int x, int y, int w, int h, int r, int g, int b, int a)
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{
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int i;
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w--;
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h--;
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for (i=0; i<=w; i++)
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{
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blendpixel(x+i, y, r, g, b, a);
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blendpixel(x+i, y+h, r, g, b, a);
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}
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for (i=1; i<h; i++)
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{
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blendpixel(x, y+i, r, g, b, a);
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blendpixel(x+w, y+i, r, g, b, a);
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}
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}
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void PIXELMETHODS_CLASS::fillrect(int x, int y, int w, int h, int r, int g, int b, int a)
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{
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int i,j;
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for (j=0; j<h; j++)
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for (i=0; i<w; i++)
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blendpixel(x+i, y+j, r, g, b, a);
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}
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void PIXELMETHODS_CLASS::drawcircle(int x, int y, int rx, int ry, int r, int g, int b, int a)
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{
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int yTop = ry, yBottom, i, j;
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if (!rx)
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{
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for (j = -ry; j <= ry; j++)
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blendpixel(x, y+j, r, g, b, a);
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return;
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}
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for (i = 0; i <= rx; i++) {
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yBottom = yTop;
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while (pow(i-rx,2.0)*pow(ry,2.0) + pow(yTop-ry,2.0)*pow(rx,2.0) <= pow(rx,2.0)*pow(ry,2.0))
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yTop++;
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if (yBottom != yTop)
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yTop--;
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for (int j = yBottom; j <= yTop; j++)
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{
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blendpixel(x+i-rx, y+j-ry, r, g, b, a);
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if (i != rx)
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blendpixel(x-i+rx, y+j-ry, r, g, b, a);
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if (j != ry)
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{
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blendpixel(x+i-rx, y-j+ry, r, g, b, a);
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if (i != rx)
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blendpixel(x-i+rx, y-j+ry, r, g, b, a);
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}
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}
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}
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}
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void PIXELMETHODS_CLASS::fillcircle(int x, int y, int rx, int ry, int r, int g, int b, int a)
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{
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int yTop = ry+1, yBottom, i, j;
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if (!rx)
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{
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for (j = -ry; j <= ry; j++)
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blendpixel(x, y+j, r, g, b, a);
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return;
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}
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for (i = 0; i <= rx; i++)
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{
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while (pow(i-rx,2.0)*pow(ry,2.0) + pow(yTop-ry,2.0)*pow(rx,2.0) <= pow(rx,2.0)*pow(ry,2.0))
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yTop++;
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yBottom = 2*ry - yTop;
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for (int j = yBottom+1; j < yTop; j++)
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{
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blendpixel(x+i-rx, y+j-ry, r, g, b, a);
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if (i != rx)
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blendpixel(x-i+rx, y+j-ry, r, g, b, a);
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}
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}
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}
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void PIXELMETHODS_CLASS::gradientrect(int x, int y, int width, int height, int r, int g, int b, int a, int r2, int g2, int b2, int a2)
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{
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}
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void PIXELMETHODS_CLASS::clearrect(int x, int y, int w, int h)
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{
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int i;
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// TODO: change calls to clearrect to use sensible meanings of x, y, w, h then remove these 4 lines
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x += 1;
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y += 1;
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w -= 1;
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h -= 1;
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if (x+w > VIDXRES) w = VIDXRES-x;
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if (y+h > VIDYRES) h = VIDYRES-y;
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if (x<0)
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{
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w += x;
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x = 0;
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}
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if (y<0)
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{
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h += y;
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y = 0;
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}
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if (w<0 || h<0)
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return;
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for (i=0; i<h; i++)
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memset(vid+(x+(VIDXRES)*(y+i)), 0, PIXELSIZE*w);
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}
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void PIXELMETHODS_CLASS::draw_image(pixel *img, int x, int y, int w, int h, int a)
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{
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int i, j, r, g, b;
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if (!img) return;
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if(y + h > VIDYRES) h = ((VIDYRES)-y)-1; //Adjust height to prevent drawing off the bottom
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if (y < 0 && -y < h)
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{
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img += -y*w;
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h += y;
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y = 0;
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}
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if(!h || y < 0) return;
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if(a >= 255)
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for (j=0; j<h; j++)
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for (i=0; i<w; i++)
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{
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vid[(y+j)*(VIDXRES)+(x+i)] = *img;
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img++;
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}
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else
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for (j=0; j<h; j++)
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for (i=0; i<w; i++)
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{
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r = PIXR(*img);
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g = PIXG(*img);
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b = PIXB(*img);
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blendpixel(x+i, y+j, r, g, b, a);
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img++;
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}
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}
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void PIXELMETHODS_CLASS::draw_image(const VideoBuffer & vidBuf, int x, int y, int a)
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{
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draw_image(vidBuf.Buffer, x, y, vidBuf.Width, vidBuf.Height, a);
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}
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void PIXELMETHODS_CLASS::draw_image(VideoBuffer * vidBuf, int x, int y, int a)
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{
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draw_image(vidBuf->Buffer, x, y, vidBuf->Width, vidBuf->Height, a);
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}
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