X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=hacks%2Fanalogtv.c;h=fd7f504c68d705614c57552405044932694b7b6b;hb=refs%2Fheads%2Fmaster;hp=8d64d50370558ccfe04af87c8d4b4e7fa70b7010;hpb=8afc01a67be4fbf3f1cc0fce9adf01b5289a21c6;p=xscreensaver diff --git a/hacks/analogtv.c b/hacks/analogtv.c index 8d64d503..fd7f504c 100644 --- a/hacks/analogtv.c +++ b/hacks/analogtv.c @@ -1,4 +1,4 @@ -/* analogtv, Copyright (c) 2003, 2004 Trevor Blackwell +/* analogtv, Copyright (c) 2003-2018 Trevor Blackwell * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that @@ -59,12 +59,23 @@ Fixed a bug or two. */ -#ifdef HAVE_COCOA +/* 2015-02-27, Tomasz Sulej : + - tint_control variable is used now + - removed unusable hashnoise code + */ + +/* + 2016-10-09, Dave Odell : + Updated for new xshm.c. +*/ + +#ifdef HAVE_JWXYZ # include "jwxyz.h" -#else /* !HAVE_COCOA */ +#else /* !HAVE_JWXYZ */ # include # include #endif +#include #include #include @@ -74,10 +85,12 @@ #include "yarandom.h" #include "grabscreen.h" #include "visual.h" +#include "font-retry.h" +#include "ximage-loader.h" /* #define DEBUG 1 */ -#ifdef DEBUG +#if defined(DEBUG) && (defined(__linux) || defined(__FreeBSD__)) /* only works on linux + freebsd */ #include @@ -211,19 +224,19 @@ analogtv_set_defaults(analogtv *it, char *prefix) #ifdef DEBUG printf("analogtv: prefix=%s\n",prefix); - printf(" use: shm=%d cmap=%d color=%d\n", - it->use_shm,it->use_cmap,it->use_color); + printf(" use: cmap=%d color=%d\n", + it->use_cmap,it->use_color); printf(" controls: tint=%g color=%g brightness=%g contrast=%g\n", it->tint_control, it->color_control, it->brightness_control, it->contrast_control); - printf(" freq_error %g: %g %d\n", - it->freq_error, it->freq_error_inc, it->flutter_tint); +/* printf(" freq_error %g: %g %d\n", + it->freq_error, it->freq_error_inc, it->flutter_tint); */ printf(" desync: %g %d\n", it->horiz_desync, it->flutter_horiz_desync); printf(" hashnoise rpm: %g\n", it->hashnoise_rpm); - printf(" vis: %d %d %d\n", - it->visclass, it->visbits, it->visdepth); + printf(" vis: %d %d\n", + it->visclass, it->visdepth); printf(" shift: %d-%d %d-%d %d-%d\n", it->red_invprec,it->red_shift, it->green_invprec,it->green_shift, @@ -256,15 +269,7 @@ static void analogtv_free_image(analogtv *it) { if (it->image) { - if (it->use_shm) { -#ifdef HAVE_XSHM_EXTENSION - destroy_xshm_image(it->dpy, it->image, &it->shm_info); -#endif - } else { - thread_free(it->image->data); - it->image->data = NULL; - XDestroyImage(it->image); - } + destroy_xshm_image(it->dpy, it->image, &it->shm_info); it->image=NULL; } } @@ -274,31 +279,14 @@ analogtv_alloc_image(analogtv *it) { /* On failure, it->image is NULL. */ - unsigned bits_per_pixel = get_bits_per_pixel(it->dpy, it->xgwa.depth); + unsigned bits_per_pixel = visual_pixmap_depth(it->screen, it->xgwa.visual); unsigned align = thread_memory_alignment(it->dpy) * 8 - 1; /* Width is in bits. */ unsigned width = (it->usewidth * bits_per_pixel + align) & ~align; - if (it->use_shm) { -#ifdef HAVE_XSHM_EXTENSION - it->image=create_xshm_image(it->dpy, it->xgwa.visual, it->xgwa.depth, ZPixmap, 0, - &it->shm_info, - width / bits_per_pixel, it->useheight); -#endif - if (!it->image) it->use_shm=0; - } - if (!it->image) { - it->image = XCreateImage(it->dpy, it->xgwa.visual, it->xgwa.depth, ZPixmap, 0, 0, - it->usewidth, it->useheight, 8, width / 8); - if (it->image) { - if(thread_malloc((void **)&it->image->data, it->dpy, - it->image->height * it->image->bytes_per_line)) { - it->image->data = NULL; - XDestroyImage(it->image); - it->image = NULL; - } - } - } + it->image=create_xshm_image(it->dpy, it->xgwa.visual, it->xgwa.depth, + ZPixmap, &it->shm_info, + width / bits_per_pixel, it->useheight); if (it->image) { memset (it->image->data, 0, it->image->height * it->image->bytes_per_line); @@ -319,19 +307,21 @@ analogtv_configure(analogtv *it) /* If the window is very small, don't let the image we draw get lower than the actual TV resolution (266x200.) - If the aspect ratio of the window is within 15% of a 4:3 ratio, + If the aspect ratio of the window is close to a 4:3 or 16:9 ratio -- + or if it is a completely weird aspect ratio -- then scale the image to exactly fill the window. Otherwise, center the image either horizontally or vertically, - padding on the left+right, or top+bottom, but not both. + letterboxing or pillarboxing (but not both). If it's very close (2.5%) to a multiple of VISLINES, make it exact For example, it maps 1024 => 1000. */ - float percent = 0.15; /* jwz: 20% caused severe top/bottom clipping - in Pong on 1680x1050 iMac screen. */ - float min_ratio = 4.0 / 3.0 * (1 - percent); - float max_ratio = 4.0 / 3.0 * (1 + percent); + float percent = 0.15; + float min_ratio = 4.0 / 3.0 * (1 - percent); + float max_ratio = 16.0 / 9.0 * (1 + percent); + float crazy_min_ratio = 10; + float crazy_max_ratio = 1/crazy_min_ratio; float ratio; float height_snap=0.025; @@ -339,10 +329,10 @@ analogtv_configure(analogtv *it) wlim = it->xgwa.width; ratio = wlim / (float) hlim; -#ifdef USE_IPHONE +#ifdef HAVE_MOBILE /* Fill the whole iPhone screen, even though that distorts the image. */ - min_ratio = 640.0 / 1136.0 * (1 - percent); - max_ratio = 1136.0 / 640.0 * (1 + percent); + min_ratio = 0; + max_ratio = 10; #endif if (wlim < 266 || hlim < 200) @@ -364,7 +354,7 @@ analogtv_configure(analogtv *it) wlim, hlim, min_ratio, ratio, max_ratio); # endif } - else if (ratio > max_ratio) + else if (ratio >= max_ratio) { wlim = hlim*max_ratio; # ifdef DEBUG @@ -374,7 +364,7 @@ analogtv_configure(analogtv *it) min_ratio, ratio, max_ratio); # endif } - else /* ratio < min_ratio */ + else /* ratio <= min_ratio */ { hlim = wlim/min_ratio; # ifdef DEBUG @@ -385,9 +375,23 @@ analogtv_configure(analogtv *it) # endif } + if (ratio < crazy_min_ratio || ratio > crazy_max_ratio) + { + if (ratio < crazy_min_ratio) + hlim = it->xgwa.height; + else + wlim = it->xgwa.width; +# ifdef DEBUG + fprintf (stderr, + "size: aspect: %dx%d in %dx%d (%.3f < %.3f < %.3f)\n", + wlim, hlim, it->xgwa.width, it->xgwa.height, + min_ratio, ratio, max_ratio); +# endif + } + height_diff = ((hlim + ANALOGTV_VISLINES/2) % ANALOGTV_VISLINES) - ANALOGTV_VISLINES/2; - if (height_diff != 0 && fabs(height_diff) < hlim * height_snap) + if (height_diff != 0 && abs(height_diff) < hlim * height_snap) { hlim -= height_diff; } @@ -503,18 +507,11 @@ analogtv_allocate(Display *dpy, Window window) it->n_colors=0; -#ifdef HAVE_XSHM_EXTENSION - it->use_shm=1; -#else - it->use_shm=0; -#endif - XGetWindowAttributes (it->dpy, it->window, &it->xgwa); it->screen=it->xgwa.screen; it->colormap=it->xgwa.colormap; - it->visclass=it->xgwa.visual->class; - it->visbits=it->xgwa.visual->bits_per_rgb; + it->visclass=visual_class(it->xgwa.screen, it->xgwa.visual); it->visdepth=it->xgwa.depth; if (it->visclass == TrueColor || it->visclass == DirectColor) { if (get_integer_resource (it->dpy, "use_cmap", "Integer")) { @@ -533,9 +530,8 @@ analogtv_allocate(Display *dpy, Window window) it->use_color=0; } - it->red_mask=it->xgwa.visual->red_mask; - it->green_mask=it->xgwa.visual->green_mask; - it->blue_mask=it->xgwa.visual->blue_mask; + visual_rgb_masks (it->xgwa.screen, it->xgwa.visual, + &it->red_mask, &it->green_mask, &it->blue_mask); it->red_shift=it->red_invprec=-1; it->green_shift=it->green_invprec=-1; it->blue_shift=it->blue_invprec=-1; @@ -572,6 +568,9 @@ analogtv_allocate(Display *dpy, Window window) "background", "Background"); it->gc = XCreateGC(it->dpy, it->window, GCBackground, &gcv); +# ifdef HAVE_JWXYZ + jwxyz_XSetAntiAliasing (it->dpy, it->gc, False); +# endif XSetWindowBackground(it->dpy, it->window, gcv.background); XClearWindow(dpy,window); @@ -594,15 +593,7 @@ void analogtv_release(analogtv *it) { if (it->image) { - if (it->use_shm) { -#ifdef HAVE_XSHM_EXTENSION - destroy_xshm_image(it->dpy, it->image, &it->shm_info); -#endif - } else { - thread_free(it->image->data); - it->image->data = NULL; - XDestroyImage(it->image); - } + destroy_xshm_image(it->dpy, it->image, &it->shm_info); it->image=NULL; } if (it->gc) XFreeGC(it->dpy, it->gc); @@ -792,11 +783,8 @@ analogtv_ntsc_to_yiq(const analogtv *it, int lineno, const float *signal, colormode = (cb_i * cb_i + cb_q * cb_q) > 2.8; if (colormode) { - double tint_i = -cos((103 + it->color_control)*3.1415926/180); - double tint_q = sin((103 + it->color_control)*3.1415926/180); - - multiq2[0] = (cb_i*tint_i - cb_q*tint_q) * it->color_control; - multiq2[1] = (cb_q*tint_i + cb_i*tint_q) * it->color_control; + multiq2[0] = (cb_i*it->tint_i - cb_q*it->tint_q) * it->color_control; + multiq2[1] = (cb_q*it->tint_i + cb_i*it->tint_q) * it->color_control; multiq2[2]=-multiq2[0]; multiq2[3]=-multiq2[1]; } @@ -908,7 +896,7 @@ analogtv_setup_teletext(analogtv_input *input) void analogtv_setup_frame(analogtv *it) { - int i,x,y; + /* int i,x,y;*/ it->redraw_all=0; @@ -920,10 +908,13 @@ analogtv_setup_frame(analogtv *it) ((int)(random()&0xff)-0x80) * 0.000001; } + /* it wasn't used for (i=0; ihashnoise_times[i]=0; } + */ + /* let's leave it to process shrinkpulse */ if (it->hashnoise_enable && !it->hashnoise_on) { if (random()%10000==0) { it->hashnoise_on=1; @@ -933,6 +924,8 @@ analogtv_setup_frame(analogtv *it) if (random()%1000==0) { it->hashnoise_on=0; } + +#if 0 /* never used */ if (it->hashnoise_on) { it->hashnoise_rpm += (15000.0 - it->hashnoise_rpm)*0.05 + ((int)(random()%2000)-1000)*0.1; @@ -942,11 +935,13 @@ analogtv_setup_frame(analogtv *it) } if (it->hashnoise_rpm > 0.0) { int hni; + double hni_double; int hnc=it->hashnoise_counter; /* in 24.8 format */ /* Convert rpm of a 16-pole motor into dots in 24.8 format */ - hni = (int)(ANALOGTV_V * ANALOGTV_H * 256.0 / - (it->hashnoise_rpm * 16.0 / 60.0 / 60.0)); + hni_double = ANALOGTV_V * ANALOGTV_H * 256.0 / + (it->hashnoise_rpm * 16.0 / 60.0 / 60.0); + hni = (hni_double <= INT_MAX) ? (int)hni_double : INT_MAX; while (hnc < (ANALOGTV_V * ANALOGTV_H)<<8) { y=(hnc>>8)/ANALOGTV_H; @@ -955,10 +950,18 @@ analogtv_setup_frame(analogtv *it) if (x>0 && xhashnoise_times[y]=x; } - hnc += hni + (int)(random()%65536)-32768; + /* hnc += hni + (int)(random()%65536)-32768; */ + { + hnc += (int)(random()%65536)-32768; + if ((hnc >= 0) && (INT_MAX - hnc < hni)) break; + hnc += hni; + } } -/* hnc -= (ANALOGTV_V * ANALOGTV_H)<<8;*/ } +#endif /* 0 */ + +/* hnc -= (ANALOGTV_V * ANALOGTV_H)<<8;*/ + if (it->rx_signal_level != 0.0) it->agclevel = 1.0/it->rx_signal_level; @@ -1196,14 +1199,17 @@ static void analogtv_init_signal(const analogtv *it, double noiselevel, unsigned float *pe=it->rx_signal + end; float *p=ps; unsigned int fastrnd=rnd_seek(FASTRND_A, FASTRND_C, it->random0, start); + unsigned int fastrnd_offset; float nm1,nm2; float noisemul = sqrt(noiselevel*150)/(float)0x7fffffff; - nm1 = ((int)fastrnd-(int)0x7fffffff) * noisemul; + fastrnd_offset = fastrnd - 0x7fffffff; + nm1 = (fastrnd_offset <= INT_MAX ? (int)fastrnd_offset : -1 - (int)(UINT_MAX - fastrnd_offset)) * noisemul; while (p != pe) { nm2=nm1; fastrnd = (fastrnd*FASTRND_A+FASTRND_C) & 0xffffffffu; - nm1 = ((int)fastrnd-(int)0x7fffffff) * noisemul; + fastrnd_offset = fastrnd - 0x7fffffff; + nm1 = (fastrnd_offset <= INT_MAX ? (int)fastrnd_offset : -1 - (int)(UINT_MAX - fastrnd_offset)) * noisemul; *p++ = nm1*nm2; } } @@ -1244,7 +1250,8 @@ static void analogtv_add_signal(const analogtv *it, const analogtv_reception *re */ float sig0=(float)s[0]; - float noise = ((int)fastrnd-(int)0x7fffffff) * (50.0f/(float)0x7fffffff); + unsigned int fastrnd_offset = fastrnd - 0x7fffffff; + float noise = (fastrnd_offset <= INT_MAX ? (int)fastrnd_offset : -1 - (int)(UINT_MAX - fastrnd_offset)) * (50.0f/(float)0x7fffffff); fastrnd = (fastrnd*FASTRND_A+FASTRND_C) & 0xffffffffu; p[0] += sig0 * level * (1.0f - noise_ampl) + noise * noise_ampl; @@ -1728,7 +1735,7 @@ analogtv_draw(analogtv *it, double noiselevel, const analogtv_reception *const *recs, unsigned rec_count) { int i,lineno; - int /*bigloadchange,*/drawcount; + /* int bigloadchange,drawcount;*/ double baseload; int overall_top, overall_bot; @@ -1783,14 +1790,18 @@ analogtv_draw(analogtv *it, double noiselevel, baseload=0.5; /* if (it->hashnoise_on) baseload=0.5; */ - /*bigloadchange=1;*/ - drawcount=0; + /*bigloadchange=1; + drawcount=0;*/ it->crtload[ANALOGTV_TOP-1]=baseload; it->puheight = puramp(it, 2.0, 1.0, 1.3) * it->height_control * (1.125 - 0.125*puramp(it, 2.0, 2.0, 1.1)); analogtv_setup_levels(it, it->puheight * (double)it->useheight/(double)ANALOGTV_VISLINES); + /* calculate tint once per frame */ + it->tint_i = -cos((103 + it->tint_control)*3.1415926/180); + it->tint_q = sin((103 + it->tint_control)*3.1415926/180); + for (lineno=ANALOGTV_TOP; linenoonscreen_signature[lineno] = linesig; #endif - drawcount++; + /* drawcount++;*/ /* Interpolate the 600-dotclock line into however many horizontal @@ -1938,20 +1949,11 @@ analogtv_draw(analogtv *it, double noiselevel, } if (overall_bot > overall_top) { - if (it->use_shm) { -#ifdef HAVE_XSHM_EXTENSION - XShmPutImage(it->dpy, it->window, it->gc, it->image, + put_xshm_image(it->dpy, it->window, it->gc, it->image, 0, overall_top, it->screen_xo, it->screen_yo+overall_top, it->usewidth, overall_bot - overall_top, - False); -#endif - } else { - XPutImage(it->dpy, it->window, it->gc, it->image, - 0, overall_top, - it->screen_xo, it->screen_yo+overall_top, - it->usewidth, overall_bot - overall_top); - } + &it->shm_info); } #ifdef DEBUG @@ -1984,10 +1986,16 @@ analogtv_input_allocate() This takes a screen image and encodes it as a video camera would, including all the bandlimiting and YIQ modulation. This isn't especially tuned for speed. + + xoff, yoff: top left corner of rendered image, in window pixels. + w, h: scaled size of rendered image, in window pixels. + mask: BlackPixel means don't render (it's not full alpha) */ int -analogtv_load_ximage(analogtv *it, analogtv_input *input, XImage *pic_im) +analogtv_load_ximage(analogtv *it, analogtv_input *input, + XImage *pic_im, XImage *mask_im, + int xoff, int yoff, int target_w, int target_h) { int i,x,y; int img_w,img_h; @@ -1996,14 +2004,24 @@ analogtv_load_ximage(analogtv *it, analogtv_input *input, XImage *pic_im) int fqx[4],fqy[4]; XColor col1[ANALOGTV_PIC_LEN]; XColor col2[ANALOGTV_PIC_LEN]; + char mask[ANALOGTV_PIC_LEN]; int multiq[ANALOGTV_PIC_LEN+4]; + unsigned long black = 0; /* not BlackPixelOfScreen (it->xgwa.screen); */ + + int x_length=ANALOGTV_PIC_LEN; int y_overscan=5; /* overscan this much top and bottom */ int y_scanlength=ANALOGTV_VISLINES+2*y_overscan; - img_w=pic_im->width; - img_h=pic_im->height; + if (target_w > 0) x_length = x_length * target_w / it->xgwa.width; + if (target_h > 0) y_scanlength = y_scanlength * target_h / it->xgwa.height; + + img_w = pic_im->width; + img_h = pic_im->height; - for (i=0; ixgwa.width; + yoff = ANALOGTV_VISLINES * yoff / it->xgwa.height; + + for (i=0; idpy, it->colormap, col1, ANALOGTV_PIC_LEN); - XQueryColors(it->dpy, it->colormap, col2, ANALOGTV_PIC_LEN); - + XQueryColors(it->dpy, it->colormap, col1, x_length); + XQueryColors(it->dpy, it->colormap, col2, x_length); for (i=0; i<7; i++) fyx[i]=fyy[i]=0; for (i=0; i<4; i++) fix[i]=fiy[i]=fqx[i]=fqy[i]=0.0; - for (x=0; x>14) + ANALOGTV_BLACK_LEVEL; if (composite>125) composite=125; if (composite<0) composite=0; - input->signal[y-y_overscan+ANALOGTV_TOP][x+ANALOGTV_PIC_START] = composite; + + input->signal[y-y_overscan+ANALOGTV_TOP+yoff][x+ANALOGTV_PIC_START+xoff] = composite; } } @@ -2175,10 +2200,10 @@ analogtv_reception_update(analogtv_reception *rec) } -/* jwz: since MacOS doesn't have "6x10", I dumped this font to an XBM... +/* jwz: since MacOS doesn't have "6x10", I dumped this font to a PNG... */ -#include "images/6x10font.xbm" +#include "images/gen/6x10font_png.h" void analogtv_make_font(Display *dpy, Window window, analogtv_font *f, @@ -2198,18 +2223,40 @@ analogtv_make_font(Display *dpy, Window window, analogtv_font *f, if (fontname && !strcmp (fontname, "6x10")) { - text_pm = XCreatePixmapFromBitmapData (dpy, window, - (char *) font6x10_bits, - font6x10_width, - font6x10_height, - 1, 0, 1); - f->text_im = XGetImage(dpy, text_pm, 0, 0, font6x10_width, font6x10_height, - 1, XYPixmap); - XFreePixmap(dpy, text_pm); + int pix_w, pix_h; + XWindowAttributes xgwa; + Pixmap m = 0; + Pixmap p = image_data_to_pixmap (dpy, window, + _6x10font_png, sizeof(_6x10font_png), + &pix_w, &pix_h, &m); + XImage *im = XGetImage (dpy, p, 0, 0, pix_w, pix_h, ~0L, ZPixmap); + XImage *mm = XGetImage (dpy, m, 0, 0, pix_w, pix_h, 1, XYPixmap); + unsigned long black = BlackPixelOfScreen (DefaultScreenOfDisplay (dpy)); + int x, y; + + XFreePixmap (dpy, p); + XFreePixmap (dpy, m); + if (pix_w != 256*7) abort(); + if (pix_h != 10) abort(); + + XGetWindowAttributes (dpy, window, &xgwa); + f->text_im = XCreateImage (dpy, xgwa.visual, 1, XYBitmap, 0, 0, + pix_w, pix_h, 8, 0); + f->text_im->data = malloc (f->text_im->bytes_per_line * f->text_im->height); + + /* Convert deep image to 1 bit */ + for (y = 0; y < pix_h; y++) + for (x = 0; x < pix_w; x++) + XPutPixel (f->text_im, x, y, + (XGetPixel (mm, x, y) + ? XGetPixel (im, x, y) == black + : 0)); + XDestroyImage (im); + XDestroyImage (mm); } else if (fontname) { - font = XLoadQueryFont (dpy, fontname); + font = load_font_retry (dpy, fontname); if (!font) { fprintf(stderr, "analogtv: can't load font %s\n", fontname); abort(); @@ -2222,6 +2269,9 @@ analogtv_make_font(Display *dpy, Window window, analogtv_font *f, gcv.background=0; gcv.font=font->fid; gc=XCreateGC(dpy, text_pm, GCFont|GCBackground|GCForeground, &gcv); +# ifdef HAVE_JWXYZ + jwxyz_XSetAntiAliasing (dpy, gc, False); +# endif XSetForeground(dpy, gc, 0); XFillRectangle(dpy, text_pm, gc, 0, 0, 256*f->char_w, f->char_h); @@ -2379,115 +2429,3 @@ analogtv_draw_string_centered(analogtv_input *input, analogtv_font *f, analogtv_draw_string(input, f, s, x, y, ntsc); } - - -static const char hextonib[128] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, - 0, 10,11,12,13,14,15,0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 10,11,12,13,14,15,0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; - -/* - Much of this function was adapted from logo.c - */ -void -analogtv_draw_xpm(analogtv *tv, analogtv_input *input, - const char * const *xpm, int left, int top) -{ - int xpmw,xpmh; - int x,y,tvx,tvy,i; - int rawy,rawi,rawq; - int ncolors, nbytes; - char dummyc; - struct { - int r; int g; int b; - } cmap[256]; - - - if (4 != sscanf ((const char *) *xpm, - "%d %d %d %d %c", - &xpmw, &xpmh, &ncolors, &nbytes, &dummyc)) - abort(); - if (ncolors < 1 || ncolors > 255) - abort(); - if (nbytes != 1) /* a serious limitation */ - abort(); - xpm++; - - for (i = 0; i < ncolors; i++) { - const char *line = *xpm; - int colori = ((unsigned char)*line++)&0xff; - while (*line) - { - int r, g, b; - char which; - while (*line == ' ' || *line == '\t') - line++; - which = *line++; - if (which != 'c' && which != 'm') - abort(); - while (*line == ' ' || *line == '\t') - line++; - if (!strncasecmp(line, "None", 4)) - { - r = g = b = -1; - line += 4; - } - else - { - if (*line == '#') - line++; - r = (hextonib[(int) line[0]] << 4) | hextonib[(int) line[1]]; - line += 2; - g = (hextonib[(int) line[0]] << 4) | hextonib[(int) line[1]]; - line += 2; - b = (hextonib[(int) line[0]] << 4) | hextonib[(int) line[1]]; - line += 2; - } - - if (which == 'c') - { - cmap[colori].r = r; - cmap[colori].g = g; - cmap[colori].b = b; - } - } - - xpm++; - } - - for (y=0; y=ANALOGTV_BOT) continue; - - for (x=0; xANALOGTV_PIC_END) continue; - - rawy=( 5*cmap[cbyte].r + 11*cmap[cbyte].g + 2*cmap[cbyte].b) / 64; - rawi=(10*cmap[cbyte].r - 4*cmap[cbyte].g - 5*cmap[cbyte].b) / 64; - rawq=( 3*cmap[cbyte].r - 8*cmap[cbyte].g + 5*cmap[cbyte].b) / 64; - - ntsc[0]=rawy+rawq; - ntsc[1]=rawy-rawi; - ntsc[2]=rawy-rawq; - ntsc[3]=rawy+rawi; - - for (i=0; i<4; i++) { - if (ntsc[i]>ANALOGTV_WHITE_LEVEL) ntsc[i]=ANALOGTV_WHITE_LEVEL; - if (ntsc[i]signal[tvy][tvx+0]= ntsc[(tvx+0)&3]; - input->signal[tvy][tvx+1]= ntsc[(tvx+1)&3]; - input->signal[tvy][tvx+2]= ntsc[(tvx+2)&3]; - input->signal[tvy][tvx+3]= ntsc[(tvx+3)&3]; - } - } -}