ref: 47eca22c0a296502f838d1b3676b0cd8f5ba57b9
dir: /d_modech.c/
// d_modech.c: called when mode has just changed #include <u.h> #include <libc.h> #include "quakedef.h" #include "d_local.h" int d_vrectx, d_vrecty, d_vrectright_particle, d_vrectbottom_particle; int d_y_aspect_shift, d_pix_min, d_pix_max, d_pix_shift; int d_scantable[MAXHEIGHT]; short *zspantable[MAXHEIGHT]; /* ================ D_Patch ================ */ void D_Patch (void) { #ifdef id386 static qboolean protectset8 = false; if (!protectset8) { Sys_MakeCodeWriteable ((int)D_PolysetAff8Start, (int)D_PolysetAff8End - (int)D_PolysetAff8Start); protectset8 = true; } #endif // id386 } /* ================ D_ViewChanged ================ */ void D_ViewChanged (void) { int rowbytes; if (r_dowarp) rowbytes = WARP_WIDTH; else rowbytes = vid.rowbytes; scale_for_mip = xscale; if (yscale > xscale) scale_for_mip = yscale; d_zrowbytes = vid.width * 2; d_zwidth = vid.width; d_pix_min = r_refdef.vrect.width / 320; if (d_pix_min < 1) d_pix_min = 1; d_pix_max = (int)((float)r_refdef.vrect.width / (320.0 / 4.0) + 0.5); d_pix_shift = 8 - (int)((float)r_refdef.vrect.width / 320.0 + 0.5); if (d_pix_max < 1) d_pix_max = 1; if (pixelAspect > 1.4) d_y_aspect_shift = 1; else d_y_aspect_shift = 0; d_vrectx = r_refdef.vrect.x; d_vrecty = r_refdef.vrect.y; d_vrectright_particle = r_refdef.vrectright - d_pix_max; d_vrectbottom_particle = r_refdef.vrectbottom - (d_pix_max << d_y_aspect_shift); { int i; for (i=0 ; i<vid.height; i++) { d_scantable[i] = i*rowbytes; zspantable[i] = d_pzbuffer + i*d_zwidth; } } D_Patch (); }