search for: swfdec_matrix_ensure_invertible

Hi, Im trying to thumbnail a swf file based on this found at http://www.mail-archive.com/swfdec at lists.freedesktop.org/msg00821.html. #include <stdlib.h> #include <stdio.h> #include <swfdec/swfdec.h> #include <cairo.h> void swfdec_player_save (SwfdecPlayer *player, guint width, guint height, const char *filename) { cairo_surface_t *surface; cairo_t *cr;

...Benjamin Otte <otte at gnome.org> Date: Wed Jul 11 15:30:36 2007 +0200 assert a valid matrix when inverting diff --git a/libswfdec/swfdec_color.c b/libswfdec/swfdec_color.c index 83be167..e609e53 100644 --- a/libswfdec/swfdec_color.c +++ b/libswfdec/swfdec_color.c @@ -196,6 +196,7 @@ swfdec_matrix_ensure_invertible (cairo_m if (inverse == NULL) inverse = &tmp; + g_assert (isfinite (matrix->xx) && isfinite (matrix->yx) && isfinite (matrix->xy) && isfinite (matrix->yy)); *inverse = *matrix; while (cairo_matrix_invert (inverse)) { SWFDEC_INFO (&quot...

...gt;content->transform); - cairo_matrix_rotate (&movie->matrix, d * G_PI / 180); + if (finite (movie->rotation)) { + d = movie->rotation - swfdec_matrix_get_rotation (&movie->content->transform); + cairo_matrix_rotate (&movie->matrix, d * G_PI / 180); + } swfdec_matrix_ensure_invertible (&movie->matrix, &movie->inverse_matrix); swfdec_movie_update_extents (movie);

...gt;content->transform); - cairo_matrix_rotate (&movie->matrix, d * G_PI / 180); + if (finite (movie->rotation)) { + d = movie->rotation - swfdec_matrix_get_rotation (&movie->content->transform); + cairo_matrix_rotate (&movie->matrix, d * G_PI / 180); + } swfdec_matrix_ensure_invertible (&movie->matrix, &movie->inverse_matrix); swfdec_movie_update_extents (movie);

...ranslate_bits; - swfdec_bits_syncbits (bits); - has_scale = swfdec_bits_getbit (bits); if (has_scale) { int n_scale_bits = swfdec_bits_getbits (bits, 5); @@ -440,6 +436,7 @@ swfdec_bits_get_matrix (SwfdecBits * bit matrix->y0 = swfdec_bits_getsbits (bits, n_translate_bits); swfdec_matrix_ensure_invertible (matrix, inverse); + swfdec_bits_syncbits (bits); } char * @@ -488,7 +485,7 @@ swfdec_bits_skip_string (SwfdecBits *bit guint swfdec_bits_skip_bytes (SwfdecBits *bits, guint n_bytes) { - swfdec_bits_syncbits (bits); + g_assert (bits->idx == 0); if ((guint) (bits->end - bits->p...

...6:08:29 2007 +0100 non-invertible matrix is only INFO It's normal when someone set width or height to 0 diff --git a/libswfdec/swfdec_color.c b/libswfdec/swfdec_color.c index c4fa52e..a3e3077 100644 --- a/libswfdec/swfdec_color.c +++ b/libswfdec/swfdec_color.c @@ -198,7 +198,7 @@ swfdec_matrix_ensure_invertible (cairo_m *inverse = *matrix; while (cairo_matrix_invert (inverse)) { - SWFDEC_WARNING ("matrix not invertible, adding epsilon to smallest member"); + SWFDEC_INFO ("matrix not invertible, adding epsilon to smallest member"); /* add epsilon at point closest to...

...const SwfdecColorTransform *last, const SwfdecColorTransform *first); unsigned int swfdec_color_apply_transform (unsigned int in, const SwfdecColorTransform * trans); +SwfdecColor swfdec_color_apply_transform_premultiplied (SwfdecColor in, + const SwfdecColorTransform * trans); void swfdec_matrix_ensure_invertible (cairo_matrix_t *matrix, cairo_matrix_t *inverse); double swfdec_matrix_get_xscale (const cairo_matrix_t *matrix); diff-tree 4f17e493901cc45e47302c4fc74e1f685a32755e (from 469f29442894cdea2116ac801501057266f28727) Author: Benjamin Otte <otte@gnome.org> Date: Tue Feb 6 09:50:11 2007 +0100...

...inv_ratio + end->x0 * ratio) / 65535; + dest->y0 = (start->y0 * inv_ratio + end->y0 * ratio) / 65535; +} + diff --git a/libswfdec/swfdec_color.h b/libswfdec/swfdec_color.h index 296311b..e43458f 100644 --- a/libswfdec/swfdec_color.h +++ b/libswfdec/swfdec_color.h @@ -80,5 +80,8 @@ void swfdec_matrix_ensure_invertible (ca double swfdec_matrix_get_xscale (const cairo_matrix_t *matrix); double swfdec_matrix_get_yscale (const cairo_matrix_t *matrix); double swfdec_matrix_get_rotation (const cairo_matrix_t *matrix); +void swfdec_matrix_morph (cairo_matrix_t *dest, const cairo_matrix_t *start, + const cairo_mat...

...const SwfdecColorTransform *last, const SwfdecColorTransform *first); unsigned int swfdec_color_apply_transform (unsigned int in, const SwfdecColorTransform * trans); +SwfdecColor swfdec_color_apply_transform_premultiplied (SwfdecColor in, + const SwfdecColorTransform * trans); void swfdec_matrix_ensure_invertible (cairo_matrix_t *matrix, cairo_matrix_t *inverse); double swfdec_matrix_get_xscale (const cairo_matrix_t *matrix); diff-tree 4f17e493901cc45e47302c4fc74e1f685a32755e (from 469f29442894cdea2116ac801501057266f28727) Author: Benjamin Otte <otte@gnome.org> Date: Tue Feb 6 09:50:11 2007 +0100...

...o_matrix_scale (&movie->matrix, d, e); - d = movie->rotation - swfdec_matrix_get_rotation (&movie->content->transform); + d = movie->rotation - swfdec_matrix_get_rotation (&movie->original_transform); cairo_matrix_rotate (&movie->matrix, d * G_PI / 180); swfdec_matrix_ensure_invertible (&movie->matrix, &movie->inverse_matrix); @@ -207,51 +206,6 @@ swfdec_movie_update (SwfdecMovie *movie) } } -/** - * swfdec_movie_set_content: - * @movie: a #SwfdecMovie - * @content: #SwfdecContent to set for this movie or NULL to unset - * - * Sets new contents for @movie. N...

...(1 << SWFDEC_BUTTON_HIT)) == 0) + continue; + + swfdec_bits_get_u16 (&bits); /* depth */ + id = swfdec_bits_get_u16 (&bits); + graphic = swfdec_swf_decoder_get_character (dec, id); + if (!SWFDEC_IS_GRAPHIC (graphic)) continue; tmpx = x; tmpy = y; - swfdec_matrix_ensure_invertible (&content->transform, &inverse); + swfdec_bits_get_matrix (&bits, &matrix, &inverse); cairo_matrix_transform_point (&inverse, &tmpx, &tmpy); SWFDEC_LOG ("Checking button contents at %g %g (transformed from %g %g)", tmpx, tmpy, x, y); -...