removed clang-format and clang_complete files from the repo

[dosdemo] / src / polyfill.c

diff --git a/src/polyfill.c b/src/polyfill.c
deleted file mode 100644 (file)
index 215cd78..0000000
--- a/src/polyfill.c
+++ /dev/null
@@ -1,127 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include "polyfill.h"
-#include "gfxutil.h"
-#include "demo.h"
-
-void (*fillfunc[])(struct pvertex*, int) = {
-       polyfill_wire,
-       polyfill_flat,
-       0, 0, 0
-};
-
-void polyfill(int mode, struct pvertex *verts, int nverts)
-{
-#ifndef NDEBUG
-       if(!fillfunc[mode]) {
-               fprintf(stderr, "polyfill mode %d not implemented\n", mode);
-               abort();
-       }
-#endif
-
-       fillfunc[mode](verts, nverts);
-}
-
-void polyfill_wire(struct pvertex *verts, int nverts)
-{
-       int i, x0, y0, x1, y1;
-       struct pvertex *v = verts;
-       unsigned short color = ((v->r << 8) & 0xf800) |
-               ((v->g << 3) & 0x7e0) | ((v->b >> 3) & 0x1f);
-
-       for(i=0; i<nverts - 1; i++) {
-               x0 = v->x >> 8;
-               y0 = v->y >> 8;
-               ++v;
-               x1 = v->x >> 8;
-               y1 = v->y >> 8;
-               if(clip_line(&x0, &y0, &x1, &y1, 0, 0, fb_width, fb_height)) {
-                       draw_line(x0, y0, x1, y1, color);
-               }
-       }
-       x0 = verts[0].x >> 8;
-       y0 = verts[0].y >> 8;
-       if(clip_line(&x1, &y1, &x0, &y0, 0, 0, fb_width, fb_height)) {
-               draw_line(x1, y1, x0, y0, color);
-       }
-}
-
-#define NEXTIDX(x) ((x) ? (x) - 1 : nverts - 1)
-#define PREVIDX(x) (((x) + 1) % nverts)
-
-#define CALC_EDGE(which) \
-       do { \
-               which##_x = pv[which##_beg].x; \
-               which##_dx = pv[which##_end].x - pv[which##_beg].x; \
-               which##_slope = (which##_dx << 8) / which##_dy; \
-       } while(0)
-
-void polyfill_flat(struct pvertex *pv, int nverts)
-{
-       int i, sline, x, slen, top = 0;
-       int left_beg, left_end, right_beg, right_end;
-       int32_t left_dy, left_dx, right_dy, right_dx;
-       int32_t left_slope, right_slope;
-       int32_t left_x, right_x, y;
-       uint16_t color = ((pv->r << 8) & 0xf800) | ((pv->g << 3) & 0x7e0) |
-               ((pv->b >> 3) & 0x1f);
-       uint16_t *pixptr;
-
-       /* find topmost */
-       for(i=1; i<nverts; i++) {
-               if(pv[i].y < pv[top].y) {
-                       top = i;
-               }
-       }
-       left_beg = right_beg = top;
-       left_end = PREVIDX(left_beg);
-       right_end = NEXTIDX(right_beg);
-
-       if((left_dy = pv[left_end].y - pv[left_beg].y)) {
-               CALC_EDGE(left);
-       }
-
-       if((right_dy = pv[right_end].y - pv[right_beg].y)) {
-               CALC_EDGE(right);
-       }
-
-       y = pv[top].y;
-       sline = pv[top].y >> 8;
-
-       for(;;) {
-               if(y >= pv[left_end].y) {
-                       while(y >= pv[left_end].y) {
-                               left_beg = left_end;
-                               if(left_beg == right_beg) return;
-                               left_end = PREVIDX(left_end);
-                       }
-
-                       left_dy = pv[left_end].y - pv[left_beg].y;
-                       CALC_EDGE(left);
-               }
-
-               if(y >= pv[right_end].y) {
-                       while(y >= pv[right_end].y) {
-                               right_beg = right_end;
-                               if(left_beg == right_beg) return;
-                               right_end = NEXTIDX(right_end);
-                       }
-
-                       right_dy = pv[right_end].y - pv[right_beg].y;
-                       CALC_EDGE(right);
-               }
-
-               x = left_x >> 8;
-               slen = (right_x >> 8) - (left_x >> 8);
-
-               pixptr = (uint16_t*)fb_pixels + sline * fb_width + x;
-               for(i=0; i<slen; i++) {
-                       *pixptr++ = color;
-               }
-
-               ++sline;
-               y += 256;
-               left_x += left_slope;
-               right_x += right_slope;
-       }
-}