Mercurial > hg > dmlib
view src/dmunscaledblit.h @ 2208:90ec1ec89c56
Revamp the palette handling in lib64gfx somewhat, add helper functions to
lib64util for handling external palette file options and add support for
specifying one of the "internal" palettes or external (.act) palette file to
gfxconv and 64vw.
author | Matti Hamalainen <ccr@tnsp.org> |
---|---|
date | Fri, 14 Jun 2019 05:01:12 +0300 |
parents | e06abfde6c39 |
children |
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/* * DMLib * -- Unscaled sprite / surface blitting function template * Programmed and designed by Matti 'ccr' Hamalainen * (C) Copyright 2012 Tecnic Software productions (TNSP) */ int DM_BLITFUNC_NAME (SDL_Surface *src, const int x0, const int y0, SDL_Surface *dst #ifdef DM_BLITFUNC_ARGS DM_BLITFUNC_ARGS #endif ) #ifdef DM_HEADER ; #else { int yc; DMQValue xr, yr; #ifdef DM_BLITFUNC_VARS DM_BLITFUNC_VARS #endif // Clip coordinates if (dmUnscaledClipCoord(&xr, x0, src->w, dst->clip_rect.x, dst->clip_rect.x + dst->clip_rect.w) || dmUnscaledClipCoord(&yr, y0, src->h, dst->clip_rect.y, dst->clip_rect.y + dst->clip_rect.h)) return -1; #ifdef DM_BLITFUNC_INIT DM_BLITFUNC_INIT #endif const int srcadd = src->pitch / DM_BLITFUNC_SRC_BYTES; const int dstadd = xr.vadd - dst->clip_rect.w + dst->clip_rect.x + (dst->pitch / DM_BLITFUNC_DST_BYTES); DM_BLITFUNC_SRC_TYPE * sp = ((DM_BLITFUNC_SRC_TYPE *) src->pixels) + (yr.voffs * src->pitch) / DM_BLITFUNC_SRC_BYTES; DM_BLITFUNC_DST_TYPE * dp = ((DM_BLITFUNC_DST_TYPE *) dst->pixels) + (yr.v0 * dst->pitch) / DM_BLITFUNC_DST_BYTES + xr.v0; for (yc = yr.v0; yc < yr.v1; yc++) { int xv, xc; #ifdef DM_BLITFUNC_INNER_INIT DM_BLITFUNC_INNER_INIT #endif for (xv = xr.voffs, xc = xr.v0; xc < xr.v1; xc++, xv++) { DM_BLITFUNC_INNER } sp += srcadd; dp += dstadd; } #ifdef DM_BLITFUNC_FINISH DM_BLITFUNC_FINISH #endif return 0; } #endif #undef DM_BLITFUNC_NAME #undef DM_BLITFUNC_ARGS #undef DM_BLITFUNC_SRC_BYTES #undef DM_BLITFUNC_DST_BYTES #undef DM_BLITFUNC_SRC_TYPE #undef DM_BLITFUNC_DST_TYPE #undef DM_BLITFUNC_VARS #undef DM_BLITFUNC_INIT #undef DM_BLITFUNC_INNER_INIT #undef DM_BLITFUNC_INNER #undef DM_BLITFUNC_FINISH