diff options
Diffstat (limited to 'src/post/goom/drawmethods.h')
| -rw-r--r-- | src/post/goom/drawmethods.h | 242 |
1 files changed, 4 insertions, 238 deletions
diff --git a/src/post/goom/drawmethods.h b/src/post/goom/drawmethods.h index 408dbc2c5..76ad6ca09 100644 --- a/src/post/goom/drawmethods.h +++ b/src/post/goom/drawmethods.h @@ -1,243 +1,9 @@ #ifndef _DRAWMETHODS_H #define _DRAWMETHODS_H -#include "config.h" +#include "goom_config.h" +#include "goom_graphic.h" -#define DRAWMETHOD_NORMAL(adr,col) {*(adr) = (col);} +void draw_line (Pixel *data, int x1, int y1, int x2, int y2, int col, int screenx, int screeny); -#ifdef HAVE_MMX -#include "mmx.h" - -#define DRAWMETHOD_PLUS(_out,_backbuf,_col) \ -{\ -movd_m2r (_backbuf, mm0); \ -paddusb_m2r (_col, mm0); \ -movd_r2m (mm0, _out); \ -} - -/* -paddusb (_out -__asm__ ("movd %%eax,%%mm0\n movd %%edx,%%mm1\n paddusb %%mm1,%%mm0\n movd %%mm0,%%eax"\ -:"=eax"(_out):"eax"(_backbuf),"edx"(_col));\ -} -*/ - -#else -#define DRAWMETHOD_PLUS(_out,_backbuf,_col) \ -{\ - int tra=0,i=0;\ - unsigned char *bra = (unsigned char*)&(_backbuf);\ - unsigned char *dra = (unsigned char*)&(_out);\ - unsigned char *cra = (unsigned char*)&(_col);\ - for (;i<4;i++) {\ - tra = *cra;\ - tra += *bra;\ - if (tra>255) tra=255;\ - *dra = tra;\ - ++dra;++cra;++bra;\ - }\ -} -#endif - -#define DRAWMETHOD_OR(adr,col) {*(adr)|=(col);} - -#ifdef HAVE_MMX -#define DRAWMETHOD_DONE() {__asm__ __volatile__ ("emms");} -#else -#define DRAWMETHOD_DONE() {} -#endif - -#ifndef DRAWMETHOD -#define DRAWMETHOD DRAWMETHOD_PLUS(*p,*p,col) -//#define DRAWMETHOD *p=col - -static void -inline draw_line (int *data, int x1, int y1, int x2, int y2, int col, int screenx, - int screeny) -{ - int x, y, dx, dy, yy, xx;// am, tmp; - int *p; - -// DATA32 *p; -// DATA8 aaa, nr, ng, nb, rr, gg, bb, aa, na; - - if ((y1 < 0) || (y2 < 0) || (x1 < 0) || (x2 < 0) || (y1 >= screeny) || (y2 >= screeny) || (x1 >= screenx) || (x2 >= screenx)) return; - - /* clip to top edge - if ((y1 < 0) && (y2 < 0)) - return; - - if (y1 < 0) { - x1 += (y1 * (x1 - x2)) / (y2 - y1); - y1 = 0; - } - if (y2 < 0) { - x2 += (y2 * (x1 - x2)) / (y2 - y1); - y2 = 0; - } - - /* clip to bottom edge - if ((y1 >= screeny) && (y2 >= screeny)) - return; - if (y1 >= screeny) { - x1 -= ((screeny - y1) * (x1 - x2)) / (y2 - y1); - y1 = screeny - 1; - } - if (y2 >= screeny) { - x2 -= ((screeny - y2) * (x1 - x2)) / (y2 - y1); - y2 = screeny - 1; - } - /* clip to left edge - if ((x1 < 0) && (x2 < 0)) - return; - if (x1 < 0) { - y1 += (x1 * (y1 - y2)) / (x2 - x1); - x1 = 0; - } - if (x2 < 0) { - y2 += (x2 * (y1 - y2)) / (x2 - x1); - x2 = 0; - } - /* clip to right edge - if ((x1 >= screenx) && (x2 >= screenx)) - return; - if (x1 >= screenx) { - y1 -= ((screenx - x1) * (y1 - y2)) / (x2 - x1); - x1 = screenx - 1; - } - if (x2 >= screenx) { - y2 -= ((screenx - x2) * (y1 - y2)) / (x2 - x1); - x2 = screenx - 1; - } - */ - dx = x2 - x1; - dy = y2 - y1; - if (x1 > x2) { - int tmp; - - tmp = x1; - x1 = x2; - x2 = tmp; - tmp = y1; - y1 = y2; - y2 = tmp; - dx = x2 - x1; - dy = y2 - y1; - } - - /* vertical line */ - if (dx == 0) { - if (y1 < y2) { - p = &(data[(screenx * y1) + x1]); - for (y = y1; y <= y2; y++) { - DRAWMETHOD; - p += screenx; - } - } - else { - p = &(data[(screenx * y2) + x1]); - for (y = y2; y <= y1; y++) { - DRAWMETHOD; - p += screenx; - } - } - return; - } - /* horizontal line */ - if (dy == 0) { - if (x1 < x2) { - p = &(data[(screenx * y1) + x1]); - for (x = x1; x <= x2; x++) { - DRAWMETHOD; - p++; - } - return; - } - else { - p = &(data[(screenx * y1) + x2]); - for (x = x2; x <= x1; x++) { - DRAWMETHOD; - p++; - } - return; - } - } - /* 1 */ - /* \ */ - /* \ */ - /* 2 */ - if (y2 > y1) { - /* steep */ - if (dy > dx) { - dx = ((dx << 16) / dy); - x = x1 << 16; - for (y = y1; y <= y2; y++) { - xx = x >> 16; - p = &(data[(screenx * y) + xx]); - DRAWMETHOD; - if (xx < (screenx - 1)) { - p++; -// DRAWMETHOD; - } - x += dx; - } - return; - } - /* shallow */ - else { - dy = ((dy << 16) / dx); - y = y1 << 16; - for (x = x1; x <= x2; x++) { - yy = y >> 16; - p = &(data[(screenx * yy) + x]); - DRAWMETHOD; - if (yy < (screeny - 1)) { - p += screeny; -// DRAWMETHOD; - } - y += dy; - } - } - } - /* 2 */ - /* / */ - /* / */ - /* 1 */ - else { - /* steep */ - if (-dy > dx) { - dx = ((dx << 16) / -dy); - x = (x1 + 1) << 16; - for (y = y1; y >= y2; y--) { - xx = x >> 16; - p = &(data[(screenx * y) + xx]); - DRAWMETHOD; - if (xx < (screenx - 1)) { - p--; -// DRAWMETHOD; - } - x += dx; - } - return; - } - /* shallow */ - else { - dy = ((dy << 16) / dx); - y = y1 << 16; - for (x = x1; x <= x2; x++) { - yy = y >> 16; - p = &(data[(screenx * yy) + x]); - DRAWMETHOD; - if (yy < (screeny - 1)) { - p += screeny; -// DRAWMETHOD; - } - y += dy; - } - return; - } - } -} -#endif - -#endif +#endif /* _DRAWMETHODS_H */ |