From ba6018aea44ec6cdf0245acb116deec64a5941fa Mon Sep 17 00:00:00 2001 From: Jaime Passos Date: Sun, 26 Jan 2020 22:52:15 -0300 Subject: [PATCH] Optimise pixel drawing --- src/am_map.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/src/am_map.c b/src/am_map.c index 0f8f0f74f..c06bd2561 100644 --- a/src/am_map.c +++ b/src/am_map.c @@ -205,6 +205,7 @@ static boolean followplayer = true; // specifies whether to follow the player ar typedef void (*AMDRAWFLINEFUNC) (const fline_t *fl, INT32 color); static AMDRAWFLINEFUNC AM_drawFline; +static void AM_drawPixel(INT32 xx, INT32 yy, INT32 cc); static void AM_drawFline_soft(const fline_t *fl, INT32 color); static void AM_activateNewScale(void) @@ -712,6 +713,17 @@ static boolean AM_clipMline(const mline_t *ml, fline_t *fl) } #undef DOOUTCODE +// +// Draws a pixel. +// +static void AM_drawPixel(INT32 xx, INT32 yy, INT32 cc) +{ + UINT8 *dest = screens[0]; + if (xx < 0 || yy < 0 || xx >= vid.width || yy >= vid.height) + return; // off the screen + dest[(yy*vid.rowbytes) + (xx * vid.bpp)] = (cc & 0xFF); +} + // // Classic Bresenham w/ whatever optimizations needed for speed // @@ -733,8 +745,6 @@ static void AM_drawFline_soft(const fline_t *fl, INT32 color) } #endif - #define PUTDOT(xx,yy,cc) V_DrawFill(xx,yy,1,1,cc|V_NOSCALESTART); - dx = fl->b.x - fl->a.x; ax = 2 * (dx < 0 ? -dx : dx); sx = dx < 0 ? -1 : 1; @@ -751,7 +761,7 @@ static void AM_drawFline_soft(const fline_t *fl, INT32 color) d = ay - ax/2; for (;;) { - PUTDOT(x, y, color) + AM_drawPixel(x, y, color); if (x == fl->b.x) return; if (d >= 0) @@ -768,7 +778,7 @@ static void AM_drawFline_soft(const fline_t *fl, INT32 color) d = ax - ay/2; for (;;) { - PUTDOT(x, y, color) + AM_drawPixel(x, y, color); if (y == fl->b.y) return; if (d >= 0) @@ -780,8 +790,6 @@ static void AM_drawFline_soft(const fline_t *fl, INT32 color) d += ax; } } - - #undef PUTDOT } //