diff options
Diffstat (limited to 'fitz/base_trans.c')
| -rw-r--r-- | fitz/base_trans.c | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/fitz/base_trans.c b/fitz/base_trans.c deleted file mode 100644 index 92582253..00000000 --- a/fitz/base_trans.c +++ /dev/null @@ -1,165 +0,0 @@ -#include "mupdf/fitz.h" - -static int -fade(fz_pixmap *tpix, fz_pixmap *opix, fz_pixmap *npix, int time) -{ - unsigned char *t, *o, *n; - int size; - - if (!tpix || !opix || !npix || tpix->w != opix->w || opix->w != npix->w || tpix->h != opix->h || opix->h != npix->h || tpix->n != opix->n || opix->n != npix->n) - return 0; - size = tpix->w * tpix->h * tpix->n; - t = tpix->samples; - o = opix->samples; - n = npix->samples; - while (size-- > 0) - { - int op = *o++; - int np = *n++; - *t++ = ((op<<8) + ((np-op) * time) + 0x80)>>8; - } - return 1; -} - -static int -blind_horiz(fz_pixmap *tpix, fz_pixmap *opix, fz_pixmap *npix, int time) -{ - unsigned char *t, *o, *n; - int blind_height, span, position, y; - - if (!tpix || !opix || !npix || tpix->w != opix->w || opix->w != npix->w || tpix->h != opix->h || opix->h != npix->h || tpix->n != opix->n || opix->n != npix->n) - return 0; - span = tpix->w * tpix->n; - blind_height = (tpix->h+7) / 8; - position = blind_height * time / 256; - t = tpix->samples; - o = opix->samples; - n = npix->samples; - for (y = 0; y < tpix->h; y++) - { - memcpy(t, ((y % blind_height) <= position ? n : o), span); - t += span; - o += span; - n += span; - } - return 1; -} - -static int -blind_vertical(fz_pixmap *tpix, fz_pixmap *opix, fz_pixmap *npix, int time) -{ - unsigned char *t, *o, *n; - int blind_width, span, position, y; - - if (!tpix || !opix || !npix || tpix->w != opix->w || opix->w != npix->w || tpix->h != opix->h || opix->h != npix->h || tpix->n != opix->n || opix->n != npix->n) - return 0; - span = tpix->w * tpix->n; - blind_width = (tpix->w+7) / 8; - position = blind_width * time / 256; - blind_width *= tpix->n; - position *= tpix->n; - t = tpix->samples; - o = opix->samples; - n = npix->samples; - for (y = 0; y < tpix->h; y++) - { - int w, x; - x = 0; - while ((w = span - x) > 0) - { - int p; - if (w > blind_width) - w = blind_width; - p = position; - if (p > w) - p = w; - memcpy(t, n, p); - memcpy(t+position, o+position, w - p); - x += blind_width; - t += w; - o += w; - n += w; - } - } - return 1; -} - -static int -wipe_tb(fz_pixmap *tpix, fz_pixmap *opix, fz_pixmap *npix, int time) -{ - unsigned char *t, *o, *n; - int span, position, y; - - if (!tpix || !opix || !npix || tpix->w != opix->w || opix->w != npix->w || tpix->h != opix->h || opix->h != npix->h || tpix->n != opix->n || opix->n != npix->n) - return 0; - span = tpix->w * tpix->n; - position = tpix->h * time / 256; - t = tpix->samples; - o = opix->samples; - n = npix->samples; - for (y = 0; y < position; y++) - { - memcpy(t, n, span); - t += span; - o += span; - n += span; - } - for (; y < tpix->h; y++) - { - memcpy(t, o, span); - t += span; - o += span; - n += span; - } - return 1; -} - -static int -wipe_lr(fz_pixmap *tpix, fz_pixmap *opix, fz_pixmap *npix, int time) -{ - unsigned char *t, *o, *n; - int span, position, y; - - if (!tpix || !opix || !npix || tpix->w != opix->w || opix->w != npix->w || tpix->h != opix->h || opix->h != npix->h || tpix->n != opix->n || opix->n != npix->n) - return 0; - span = tpix->w * tpix->n; - position = tpix->w * time / 256; - position *= tpix->n; - t = tpix->samples; - o = opix->samples + position; - n = npix->samples; - for (y = 0; y < tpix->h; y++) - { - memcpy(t, n, position); - memcpy(t+position, o, span-position); - t += span; - o += span; - n += span; - } - return 1; -} - -int fz_generate_transition(fz_pixmap *tpix, fz_pixmap *opix, fz_pixmap *npix, int time, fz_transition *trans) -{ - switch (trans->type) - { - default: - case FZ_TRANSITION_FADE: - return fade(tpix, opix, npix, time); - case FZ_TRANSITION_BLINDS: - if (trans->vertical) - return blind_vertical(tpix, opix, npix, time); - else - return blind_horiz(tpix, opix, npix, time); - case FZ_TRANSITION_WIPE: - switch (((trans->direction + 45 + 360) % 360) / 90) - { - default: - case 0: return wipe_lr(tpix, opix, npix, time); - case 1: return wipe_tb(tpix, npix, opix, 256-time); - case 2: return wipe_lr(tpix, npix, opix, 256-time); - case 3: return wipe_tb(tpix, opix, npix, time); - } - } - return 0; -} |