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comparison src/video/SDL_drawline.c @ 3671:0d6f520c0eb9

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Fixed building under Visual Studio
author Sam Lantinga <slouken@libsdl.org>
date Fri, 15 Jan 2010 20:05:49 +0000
parents f638ded38b8a
children f7b03b6838cb
comparison
equal deleted inserted replaced
3670:62b6a5b99918 3671:0d6f520c0eb9
26 static void 26 static void
27 SDL_DrawLine1(SDL_Surface * dst, int x1, int y1, int x2, int y2, Uint32 color, 27 SDL_DrawLine1(SDL_Surface * dst, int x1, int y1, int x2, int y2, Uint32 color,
28 SDL_bool draw_end) 28 SDL_bool draw_end)
29 { 29 {
30 if (y1 == y2) { 30 if (y1 == y2) {
31 HLINE(Uint8, DRAW_FASTSETPIXEL1, draw_end); 31 //HLINE(Uint8, DRAW_FASTSETPIXEL1, draw_end);
32 int length;
33 int pitch = (dst->pitch / dst->format->BytesPerPixel);
34 Uint8 *pixel;
35 if (x1 <= x2) {
36 pixel = (Uint8 *)dst->pixels + y1 * pitch + x1;
37 length = draw_end ? (x2-x1+1) : (x2-x1);
38 } else {
39 pixel = (Uint8 *)dst->pixels + y1 * pitch + x2;
40 if (!draw_end) {
41 ++pixel;
42 }
43 length = draw_end ? (x1-x2+1) : (x1-x2);
44 }
45 SDL_memset(pixel, color, length);
32 } else if (x1 == x2) { 46 } else if (x1 == x2) {
33 VLINE(Uint8, DRAW_FASTSETPIXEL1, draw_end); 47 VLINE(Uint8, DRAW_FASTSETPIXEL1, draw_end);
34 } else if (ABS(x1 - x2) == ABS(y1 - y2)) { 48 } else if (ABS(x1 - x2) == ABS(y1 - y2)) {
35 DLINE(Uint8, DRAW_FASTSETPIXEL1, draw_end); 49 DLINE(Uint8, DRAW_FASTSETPIXEL1, draw_end);
36 } else { 50 } else {