diff options
Diffstat (limited to 'hacks/glx/fliptext.c')
| -rw-r--r-- | hacks/glx/fliptext.c | 1003 |
1 files changed, 0 insertions, 1003 deletions
diff --git a/hacks/glx/fliptext.c b/hacks/glx/fliptext.c deleted file mode 100644 index 84f43da..0000000 --- a/hacks/glx/fliptext.c +++ /dev/null @@ -1,1003 +0,0 @@ -/* - * fliptext, Copyright (c) 2005-2019 Jamie Zawinski <jwz@jwz.org> - * - * Permission to use, copy, modify, distribute, and sell this software and its - * documentation for any purpose is hereby granted without fee, provided that - * the above copyright notice appear in all copies and that both that - * copyright notice and this permission notice appear in supporting - * documentation. No representations are made about the suitability of this - * software for any purpose. It is provided "as is" without express or - * implied warranty. - */ - -#define DEF_FONT "sans-serif bold 72" -#define DEF_COLOR "#00CCFF" - -#define DEFAULTS "*delay: 10000 \n" \ - "*showFPS: False \n" \ - "*wireframe: False \n" \ - "*usePty: False \n" \ - "*texFontCacheSize: 60 \n" \ - "*font: " DEF_FONT "\n" \ - ".foreground: " DEF_COLOR "\n" \ - "*program: xscreensaver-text --cols 0" /* don't wrap */ - -# define release_fliptext 0 -# define fliptext_handle_event xlockmore_no_events - -#undef BELLRAND -#define BELLRAND(n) ((frand((n)) + frand((n)) + frand((n))) / 3) - -#include "xlockmore.h" -#include "texfont.h" -#include "textclient.h" - -#ifdef USE_GL /* whole file */ - -/* Should be in <GL/glext.h> */ -# ifndef GL_TEXTURE_MAX_ANISOTROPY_EXT -# define GL_TEXTURE_MAX_ANISOTROPY_EXT 0x84FE -# endif -# ifndef GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT -# define GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT 0x84FF -# endif - - -#define DEF_LINES "8" -#define DEF_FONT_SIZE "20" -#define DEF_COLUMNS "80" -#define DEF_ALIGNMENT "random" -#define DEF_SPEED "1.0" -#define TAB_WIDTH 8 - -#define FONT_WEIGHT 14 -#define KEEP_ASPECT - -typedef enum { NEW, HESITATE, IN, LINGER, OUT, DEAD } line_state; -typedef enum { SCROLL_BOTTOM, SCROLL_TOP, SPIN } line_anim_type; - -typedef struct { GLfloat x, y, z; } XYZ; - -typedef struct { - char *text; - GLfloat width, height; /* size */ - XYZ from, to, current; /* start, end, and current position */ - GLfloat fth, tth, cth; /* rotation around Z */ - - int cluster_size; /* how many lines in this cluster */ - int cluster_pos; /* position of this line in the cluster */ - - line_state state; /* current motion model */ - int step, steps; /* progress along this path */ - GLfloat color[4]; - -} line; - - -typedef struct { - Display *dpy; - GLXContext *glx_context; - - texture_font_data *texfont; - text_data *tc; - - int alignment; - - char *buf; - int buf_size; - int buf_tail; - - int char_width; /* in font units */ - int line_height; /* in font units */ - double font_scale; /* convert font units to display units */ - - int font_wrap_pixels; /* in font units (for wrapping text) */ - - int top_margin, bottom_margin; - int left_margin, right_margin; - - int nlines; - int lines_size; - line **lines; - - line_anim_type anim_type; - XYZ in, mid, out; - XYZ rotation; - GLfloat color[4]; - -} fliptext_configuration; - - -static fliptext_configuration *scs = NULL; - -static int max_lines, min_lines; -static float font_size; -static int target_columns; -static char *alignment_str; -static int alignment_random_p; -static GLfloat speed; - -static XrmOptionDescRec opts[] = { - {"-lines", ".lines", XrmoptionSepArg, 0 }, - {"-size", ".fontSize", XrmoptionSepArg, 0 }, - {"-columns", ".columns", XrmoptionSepArg, 0 }, - {"-speed", ".speed", XrmoptionSepArg, 0 }, -/*{"-font", ".font", XrmoptionSepArg, 0 },*/ - {"-alignment", ".alignment", XrmoptionSepArg, 0 }, - {"-left", ".alignment", XrmoptionNoArg, "Left" }, - {"-right", ".alignment", XrmoptionNoArg, "Right" }, - {"-center", ".alignment", XrmoptionNoArg, "Center" }, -}; - -static argtype vars[] = { - {&max_lines, "lines", "Integer", DEF_LINES, t_Int}, - {&font_size, "fontSize", "Float", DEF_FONT_SIZE, t_Float}, - {&target_columns, "columns", "Integer", DEF_COLUMNS, t_Int}, - {&alignment_str, "alignment", "Alignment", DEF_ALIGNMENT, t_String}, - {&speed, "speed", "Speed", DEF_SPEED, t_Float}, -}; - -ENTRYPOINT ModeSpecOpt fliptext_opts = {countof(opts), opts, countof(vars), vars, NULL}; - - - -/* Tabs are bad, mmmkay? */ - -static char * -untabify (const char *string) -{ - const char *ostring = string; - char *result = (char *) malloc ((strlen(string) * 8) + 1); - char *out = result; - int col = 0; - while (*string) - { - if (*string == '\t') - { - do { - col++; - *out++ = ' '; - } while (col % TAB_WIDTH); - string++; - } - else if (*string == '\r' || *string == '\n') - { - *out++ = *string++; - col = 0; - } - else if (*string == '\010') /* backspace */ - { - if (string > ostring) - out--, string++; - } - else - { - *out++ = *string++; - col++; - } - } - *out = 0; - - return result; -} - -static void -strip (char *s, Bool leading, Bool trailing) -{ - int L = strlen(s); - if (trailing) - while (L > 0 && (s[L-1] == ' ' || s[L-1] == '\t')) - s[L--] = 0; - if (leading) - { - char *s2 = s; - while (*s2 == ' ' || *s2 == '\t') - s2++; - if (s == s2) - return; - while (*s2) - *s++ = *s2++; - *s = 0; - } -} - - -static int -char_width (fliptext_configuration *sc, char c) -{ - XCharStruct e; - char s[2]; - s[0] = c; - s[1] = 0; - texture_string_metrics (sc->texfont, s, &e, 0, 0); - return e.width; -} - - -/* Returns a single line of text from the output buffer of the subprocess, - taking into account wrapping, centering, etc. Returns 0 if no complete - line is currently available. - */ -static char * -get_one_line (fliptext_configuration *sc) -{ - char *result = 0; - int wrap_pix = sc->font_wrap_pixels; - int col = 0; - int col_pix = 0; - char *s = sc->buf; - int target = sc->buf_size - sc->buf_tail - 2; - - /* Fill as much as we can into sc->buf, but stop at newline. - */ - while (target > 0) - { - int c = textclient_getc (sc->tc); - if (c <= 0) - break; - sc->buf[sc->buf_tail++] = (char) c; - sc->buf[sc->buf_tail] = 0; - target--; - if (c == '\r' || c == '\n') - break; - } - - while (!result) - { - int cw; - - if (s >= sc->buf + sc->buf_tail) - /* Reached end of buffer before end of line. Bail. */ - return 0; - - cw = char_width (sc, *s); - - if (*s == '\r' || *s == '\n' || - col_pix + cw >= wrap_pix) - { - int L = s - sc->buf; - - if (*s == '\r' || *s == '\n') - { - if (*s == '\r' && s[1] == '\n') /* swallow CRLF too */ - *s++ = 0; - - *s++ = 0; - } - else - { - /* We wrapped -- try to back up to the previous word boundary. */ - char *s2 = s; - int n = 0; - while (s2 > sc->buf && *s2 != ' ' && *s2 != '\t') - s2--, n++; - if (s2 > sc->buf) - { - s = s2; - *s++ = 0; - L = s - sc->buf; - } - } - - if (result) abort(); - result = (char *) malloc (L+1); - memcpy (result, sc->buf, L); - result[L] = 0; - - { - char *t = result; - char *ut = untabify (t); - strip (ut, (sc->alignment == 0), 1); /* if centering, strip - leading whitespace too */ - result = ut; - free (t); - } - - if (sc->buf_tail > (s - sc->buf)) - { - int i = sc->buf_tail - (s - sc->buf); - memmove (sc->buf, s, i); - sc->buf_tail = i; - sc->buf[sc->buf_tail] = 0; - } - else - { - sc->buf_tail = 0; - } - - sc->buf[sc->buf_tail] = 0; - s = sc->buf; - col = 0; - col_pix = 0; - } - else - { - col++; - col_pix += cw; - if (*s == '\t') - { - int tab_pix = TAB_WIDTH * sc->char_width; - col = TAB_WIDTH * ((col / TAB_WIDTH) + 1); - col_pix = tab_pix * ((col / tab_pix) + 1); - } - s++; - } - } - - return result; -} - - -static Bool -blank_p (const char *s) -{ - for (; *s; s++) - if (*s != ' ' && *s != '\t' && *s != '\r' && *s != '\n') - return False; - return True; -} - -/* Reads some text from the subprocess, and creates and returns a `line' - object. Adds that object to the lines list. Returns 0 if no text - available yet. - - If skip_blanks_p, then keep trying for new lines of text until we - get one that is not empty. - */ -static line * -make_line (fliptext_configuration *sc, Bool skip_blanks_p) -{ - XCharStruct e; - line *ln; - char *s; - - AGAIN: - s = get_one_line (sc); - if (s && skip_blanks_p && blank_p (s)) - { - free (s); - goto AGAIN; - } - - if (!s) return 0; - - ln = (line *) calloc (1, sizeof(*ln)); - ln->text = s; - ln->state = NEW; - texture_string_metrics (sc->texfont, s, &e, 0, 0); - ln->width = sc->font_scale * e.width; - ln->height = sc->font_scale * sc->line_height; - - memcpy (ln->color, sc->color, sizeof(ln->color)); - - sc->nlines++; - if (sc->lines_size <= sc->nlines) - { - sc->lines_size = (sc->lines_size * 1.2) + sc->nlines; - sc->lines = (line **) - realloc (sc->lines, sc->lines_size * sizeof(*sc->lines)); - if (! sc->lines) - { - fprintf (stderr, "%s: out of memory (%d lines)\n", - progname, sc->lines_size); - exit (1); - } - } - - sc->lines[sc->nlines-1] = ln; - return ln; -} - - -/* frees the object and removes it from the list. - */ -static void -free_line (fliptext_configuration *sc, line *line) -{ - int i; - for (i = 0; i < sc->nlines; i++) - if (sc->lines[i] == line) - break; - if (i == sc->nlines) abort(); - for (; i < sc->nlines-1; i++) - sc->lines[i] = sc->lines[i+1]; - sc->lines[i] = 0; - sc->nlines--; - - free (line->text); - free (line); -} - - -static void -draw_line (ModeInfo *mi, line *line) -{ - int wire = MI_IS_WIREFRAME(mi); - fliptext_configuration *sc = &scs[MI_SCREEN(mi)]; - - if (! line->text || !*line->text || - line->state == NEW || line->state == HESITATE || line->state == DEAD) - return; - - glPushMatrix(); - glTranslatef (line->current.x, line->current.y, line->current.z); - - glRotatef (line->cth, 0, 1, 0); - - if (sc->alignment == 1) - glTranslatef (-line->width, 0, 0); - else if (sc->alignment == 0) - glTranslatef (-line->width/2, 0, 0); - - glScalef (sc->font_scale, sc->font_scale, sc->font_scale); - - glColor4f (line->color[0], line->color[1], line->color[2], line->color[3]); - - if (!wire) - print_texture_string (sc->texfont, line->text); - else - { - int w, h; - char *s = line->text; - char c[2]; - c[1]=0; - glDisable (GL_TEXTURE_2D); - glColor3f (0.4, 0.4, 0.4); - while (*s) - { - XCharStruct e; - *c = *s++; - texture_string_metrics (sc->texfont, c, &e, 0, 0); - w = e.width; - h = e.ascent + e.descent; - glBegin (GL_LINE_LOOP); - glVertex3f (0, 0, 0); - glVertex3f (w, 0, 0); - glVertex3f (w, h, 0); - glVertex3f (0, h, 0); - glEnd(); - glTranslatef (w, 0, 0); - } - } - -#if 0 - glDisable (GL_TEXTURE_2D); - glColor3f (0.4, 0.4, 0.4); - glBegin (GL_LINE_LOOP); - glVertex3f (0, 0, 0); - glVertex3f (line->width/sc->font_scale, 0, 0); - glVertex3f (line->width/sc->font_scale, line->height/sc->font_scale, 0); - glVertex3f (0, line->height/sc->font_scale, 0); - glEnd(); - if (!wire) glEnable (GL_TEXTURE_2D); -#endif - - glPopMatrix(); - - mi->polygon_count += strlen (line->text); -} - -static void -tick_line (fliptext_configuration *sc, line *line) -{ - int stagger = 30; /* frames of delay between line spin-outs */ - int slide = 600; /* frames in a slide in/out */ - int linger = 0; /* frames to pause with no motion */ - double i, ii; - - if (line->state >= DEAD) abort(); - if (++line->step >= line->steps) - { - line->state++; - line->step = 0; - - if (linger == 0 && line->state == LINGER) - line->state++; - - if (sc->anim_type != SPIN) - stagger *= 2; - - switch (line->state) - { - case HESITATE: /* entering state HESITATE */ - switch (sc->anim_type) - { - case SPIN: - line->steps = (line->cluster_pos * stagger); - break; - case SCROLL_TOP: - line->steps = stagger * (line->cluster_size - line->cluster_pos); - break; - case SCROLL_BOTTOM: - line->steps = stagger * line->cluster_pos; - break; - default: - abort(); - } - break; - - case IN: - line->color[3] = 0; - switch (sc->anim_type) - { - case SCROLL_BOTTOM: /* entering state BOTTOM IN */ - line->from = sc->in; - line->to = sc->mid; - line->from.y = (sc->bottom_margin - - (line->height * - (line->cluster_pos + 1))); - line->to.y += (line->height * - ((line->cluster_size/2.0) - line->cluster_pos)); - line->steps = slide; - break; - - case SCROLL_TOP: /* entering state TOP IN */ - line->from = sc->in; - line->to = sc->mid; - line->from.y = (sc->top_margin + - (line->height * - (line->cluster_size - line->cluster_pos))); - line->to.y += (line->height * - ((line->cluster_size/2.0) - line->cluster_pos)); - line->steps = slide; - break; - - case SPIN: /* entering state SPIN IN */ - line->from = sc->in; - line->to = sc->mid; - line->to.y += (line->height * - ((line->cluster_size/2.0) - line->cluster_pos)); - line->from.y += (line->height * - ((line->cluster_size/2.0) - line->cluster_pos)); - - line->fth = 270; - line->tth = 0; - line->steps = slide; - break; - - default: - abort(); - } - break; - - case OUT: - switch (sc->anim_type) - { - case SCROLL_BOTTOM: /* entering state BOTTOM OUT */ - line->from = line->to; - line->to = sc->out; - line->to.y = (sc->top_margin + - (line->height * - (line->cluster_size - line->cluster_pos))); - line->steps = slide; - break; - - case SCROLL_TOP: /* entering state TOP OUT */ - line->from = line->to; - line->to = sc->out; - line->to.y = (sc->bottom_margin - - (line->height * - (line->cluster_pos + 1))); - line->steps = slide; - break; - - case SPIN: /* entering state SPIN OUT */ - line->from = line->to; - line->to = sc->out; - line->to.y += (line->height * - ((line->cluster_size/2.0) - line->cluster_pos)); - - line->fth = line->tth; - line->tth = -270; - line->steps = slide; - break; - - default: - abort(); - } - break; - - case LINGER: - line->from = line->to; - line->steps = linger; - break; - - default: - break; - } - - line->steps /= speed; - } - - switch (line->state) - { - case IN: - case OUT: - i = (double) line->step / line->steps; - - /* Move along the path exponentially, slow side towards the middle. */ - if (line->state == OUT) - ii = i * i; - else - ii = 1 - ((1-i) * (1-i)); - - line->current.x = line->from.x + (ii * (line->to.x - line->from.x)); - line->current.y = line->from.y + (ii * (line->to.y - line->from.y)); - line->current.z = line->from.z + (ii * (line->to.z - line->from.z)); - line->cth = line->fth + (ii * (line->tth - line->fth)); - - if (line->state == OUT) ii = 1-ii; - line->color[3] = sc->color[3] * ii; - break; - - case HESITATE: - case LINGER: - case DEAD: - break; - default: - abort(); - } -} - - -/* Start a new cluster of lines going. - Pick their anim type, and in, mid, and out positions. - */ -static void -reset_lines (ModeInfo *mi) -{ - fliptext_configuration *sc = &scs[MI_SCREEN(mi)]; - int i; - line *prev = 0; - GLfloat minx, maxx, miny, maxy, minz, maxz, maxw, maxh; - - sc->rotation.x = 5 - BELLRAND(10); - sc->rotation.y = 5 - BELLRAND(10); - sc->rotation.z = 5 - BELLRAND(10); - - switch (random() % 8) - { - case 0: sc->anim_type = SCROLL_TOP; break; - case 1: sc->anim_type = SCROLL_BOTTOM; break; - default: sc->anim_type = SPIN; break; - } - - minx = sc->left_margin * 0.9; - maxx = sc->right_margin * 0.9; - - miny = sc->bottom_margin * 0.9; - maxy = sc->top_margin * 0.9; - - minz = sc->left_margin * 5; - maxz = sc->right_margin * 2; - - maxw = sc->font_wrap_pixels * sc->font_scale; - maxh = max_lines * sc->line_height * sc->font_scale; - - if (maxw > maxx - minx) - maxw = maxx - minx; - if (maxh > maxy - miny) - maxh = maxy - miny; - - if (alignment_random_p) - sc->alignment = (random() % 3) - 1; - - if (sc->alignment == -1) maxx -= maxw; - else if (sc->alignment == 1) minx += maxw; - else minx += maxw/2, maxx -= maxw/2; - - miny += maxh/2; - maxy -= maxh/2; - - sc->mid.x = minx + frand (maxx - minx); - if (sc->anim_type == SPIN) - sc->mid.y = miny + BELLRAND (maxy - miny); - else - sc->mid.y = miny + frand (maxy - miny); - - sc->in.x = BELLRAND(sc->right_margin * 2) - sc->right_margin; - sc->out.x = BELLRAND(sc->right_margin * 2) - sc->right_margin; - - sc->in.y = miny + frand(maxy - miny); - sc->out.y = miny + frand(maxy - miny); - - sc->in.z = minz + frand(maxz - minz); - sc->out.z = minz + frand(maxz - minz); - - sc->mid.z = 0; - - if (sc->anim_type == SPIN && sc->in.z > 0) sc->in.z /= 4; - if (sc->anim_type == SPIN && sc->out.z > 0) sc->out.z /= 4; - - for (i = 0; i < max_lines; i++) - { - line *line = make_line (sc, (i == 0)); - if (!line) break; /* no text available */ - if (i >= min_lines && - (!line->text || !*line->text)) /* blank after min */ - break; - } - - for (i = 0; i < sc->nlines; i++) - { - line *line = sc->lines[i]; - if (!prev) - { - line->from.y = sc->bottom_margin; - line->to.y = 0; - } - else - { - line->from.y = prev->from.y - prev->height; - line->to.y = prev->to.y - prev->height; - } - line->cluster_pos = i; - line->cluster_size = sc->nlines; - prev = line; - } -} - - -static void -parse_color (ModeInfo *mi, const char *name, const char *s, GLfloat *a) -{ - XColor c; - if (! XParseColor (MI_DISPLAY(mi), MI_COLORMAP(mi), s, &c)) - { - fprintf (stderr, "%s: can't parse %s color %s", progname, name, s); - exit (1); - } - a[0] = c.red / 65536.0; - a[1] = c.green / 65536.0; - a[2] = c.blue / 65536.0; - a[3] = 1.0; -} - - -/* Window management, etc - */ -ENTRYPOINT void -reshape_fliptext (ModeInfo *mi, int width, int height) -{ - fliptext_configuration *sc = &scs[MI_SCREEN(mi)]; - GLfloat h = (GLfloat) height / (GLfloat) width; - int y = 0; - - if (width > height * 5) { /* tiny window: show middle */ - height = width * 9/16; - y = -height/2; - h = height / (GLfloat) width; - } - - glViewport (0, y, (GLint) width, (GLint) height); - - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - gluPerspective (60.0, 1/h, 0.01, 100.0); - - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - gluLookAt( 0.0, 0.0, 2.6, - 0.0, 0.0, 0.0, - 0.0, 1.0, 0.0); - - glClear(GL_COLOR_BUFFER_BIT); - - sc->right_margin = sc->top_margin / h; - sc->left_margin = -sc->right_margin; -} - - -ENTRYPOINT void -init_fliptext (ModeInfo *mi) -{ - int wire = MI_IS_WIREFRAME(mi); - char *s; - - fliptext_configuration *sc; - - MI_INIT(mi, scs); - - sc = &scs[MI_SCREEN(mi)]; - sc->lines = (line **) calloc (max_lines+1, sizeof(*sc->lines)); - - sc->dpy = MI_DISPLAY(mi); - - if ((sc->glx_context = init_GL(mi)) != NULL) { - reshape_fliptext (mi, MI_WIDTH(mi), MI_HEIGHT(mi)); - clear_gl_error(); /* WTF? sometimes "invalid op" from glViewport! */ - } - - { - XCharStruct e; - int cw, lh, ascent, descent; - sc->texfont = load_texture_font (MI_DISPLAY(mi), "font"); - check_gl_error ("loading font"); - texture_string_metrics (sc->texfont, "n", &e, &ascent, &descent); - cw = e.width; - lh = ascent + descent; - sc->char_width = cw; - sc->line_height = lh; - } - - if (!wire) - { - glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); - glEnable (GL_BLEND); - glEnable (GL_ALPHA_TEST); - glEnable (GL_TEXTURE_2D); - - /* "Anistropic filtering helps for quadrilateral-angled textures. - A sharper image is accomplished by interpolating and filtering - multiple samples from one or more mipmaps to better approximate - very distorted textures. This is the next level of filtering - after trilinear filtering." */ - if (strstr ((char *) glGetString(GL_EXTENSIONS), - "GL_EXT_texture_filter_anisotropic")) - { - GLfloat anisotropic = 0.0; - glGetFloatv (GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &anisotropic); - if (anisotropic >= 1.0) - glTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, - anisotropic); - } - } - - /* The default font is (by fiat) "18 points". - Interpret the user's font size request relative to that. - */ - sc->font_scale = 3 * (font_size / 18.0); - - if (target_columns <= 2) target_columns = 2; - - /* Figure out what the wrap column should be, in font-coordinate pixels. - Compute it from the given -columns value, but don't let it be wider - than the screen. - */ - { - GLfloat maxw = 110 * sc->line_height / sc->font_scale; /* magic... */ - sc->font_wrap_pixels = target_columns * sc->char_width; - if (sc->font_wrap_pixels > maxw || - sc->font_wrap_pixels <= 0) - sc->font_wrap_pixels = maxw; - } - - sc->buf_size = target_columns * max_lines; - sc->buf = (char *) calloc (1, sc->buf_size); - - alignment_random_p = False; - if (!alignment_str || !*alignment_str || - !strcasecmp(alignment_str, "left")) - sc->alignment = -1; - else if (!strcasecmp(alignment_str, "center") || - !strcasecmp(alignment_str, "middle")) - sc->alignment = 0; - else if (!strcasecmp(alignment_str, "right")) - sc->alignment = 1; - else if (!strcasecmp(alignment_str, "random")) - sc->alignment = -1, alignment_random_p = True; - - else - { - fprintf (stderr, - "%s: alignment must be left/center/right/random, not \"%s\"\n", - progname, alignment_str); - exit (1); - } - - sc->tc = textclient_open (sc->dpy); - - if (max_lines < 1) max_lines = 1; - min_lines = max_lines * 0.66; - if (min_lines > max_lines - 3) min_lines = max_lines - 4; - if (min_lines < 1) min_lines = 1; - - s = get_string_resource(mi->dpy, "foreground", "Foreground"); - parse_color (mi, "foreground", s, sc->color); - if (s) free (s); - - sc->top_margin = (sc->char_width * 100); - sc->bottom_margin = -sc->top_margin; - reshape_fliptext (mi, MI_WIDTH(mi), MI_HEIGHT(mi)); /* compute left/right */ -} - - -ENTRYPOINT void -draw_fliptext (ModeInfo *mi) -{ - fliptext_configuration *sc = &scs[MI_SCREEN(mi)]; -/* XtAppContext app = XtDisplayToApplicationContext (sc->dpy);*/ - Display *dpy = MI_DISPLAY(mi); - Window window = MI_WINDOW(mi); - int i; - - if (!sc->glx_context) - return; - - glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *sc->glx_context); - -#if 0 - if (XtAppPending (app) & (XtIMTimer|XtIMAlternateInput)) - XtAppProcessEvent (app, XtIMTimer|XtIMAlternateInput); -#endif - - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - mi->polygon_count = 0; - - glPushMatrix(); - glRotatef(current_device_rotation(), 0, 0, 1); - { - GLfloat s = 3.0 / (sc->top_margin - sc->bottom_margin); - glScalef(s, s, s); - } - - glRotatef (sc->rotation.x, 1, 0, 0); - glRotatef (sc->rotation.y, 0, 1, 0); - glRotatef (sc->rotation.z, 0, 0, 1); - -#if 0 - glDisable (GL_TEXTURE_2D); - glColor3f (1,1,1); - glBegin (GL_LINE_LOOP); - glVertex3f (sc->left_margin, sc->top_margin, 0); - glVertex3f (sc->right_margin, sc->top_margin, 0); - glVertex3f (sc->right_margin, sc->bottom_margin, 0); - glVertex3f (sc->left_margin, sc->bottom_margin, 0); - glEnd(); - glBegin (GL_LINES); - glVertex3f (sc->in.x, sc->top_margin, sc->in.z); - glVertex3f (sc->in.x, sc->bottom_margin, sc->in.z); - glVertex3f (sc->mid.x, sc->top_margin, sc->mid.z); - glVertex3f (sc->mid.x, sc->bottom_margin, sc->mid.z); - glVertex3f (sc->out.x, sc->top_margin, sc->out.z); - glVertex3f (sc->out.x, sc->bottom_margin, sc->out.z); - glEnd(); - glEnable (GL_TEXTURE_2D); -#endif - - for (i = 0; i < sc->nlines; i++) - { - line *line = sc->lines[i]; - draw_line (mi, line); - tick_line (sc, line); - } - - for (i = sc->nlines-1; i >= 0; i--) - { - line *line = sc->lines[i]; - if (line->state == DEAD) - free_line (sc, line); - } - - if (sc->nlines == 0) - reset_lines (mi); - - glPopMatrix(); - - if (mi->fps_p) do_fps (mi); - glFinish(); - glXSwapBuffers(dpy, window); -} - -ENTRYPOINT void -free_fliptext (ModeInfo *mi) -{ - fliptext_configuration *sc = &scs[MI_SCREEN(mi)]; - int i; - if (!sc->glx_context) return; - glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *sc->glx_context); - if (sc->tc) - textclient_close (sc->tc); - if (sc->texfont) free_texture_font (sc->texfont); - for (i = 0; i < sc->nlines; i++) - if (sc->lines[i]) { - if (sc->lines[i]->text) free (sc->lines[i]->text); - free (sc->lines[i]); - } - if(sc->lines) free(sc->lines); -} - -XSCREENSAVER_MODULE ("FlipText", fliptext) - -#endif /* USE_GL */ |