forked from mia/Aegisub
Impliment changes from http://greg.geekmind.org/mplayer/mplayer-libass-fixes.patch
from: http://greg.geekmind.org/mplayer/mplayer-libass-fixes.txt * adds stubs for most features introduced in vsfilter 2.39 * implements \blur and \be > 1 * corrects fix_outline_and_shadow for transparency + aa * first-tag-wins for \pos and \move Originally committed to SVN as r2724.
This commit is contained in:
http://greg.geekmind.org/mplayer/mplayer-libass-fixes.txt
Amar Takhar
parent
f85ad3c81f
commit
372a5c6a1f
4 changed files with 117 additions and 31 deletions
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@ -39,11 +39,12 @@ struct ass_synth_priv_s {
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unsigned *g;
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unsigned *gt2;
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double radius;
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};
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static const unsigned int maxcolor = 255;
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static const unsigned base = 256;
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static const double blur_radius = 1.5;
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static int generate_tables(ass_synth_priv_t* priv, double radius)
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{
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@ -52,6 +53,11 @@ static int generate_tables(ass_synth_priv_t* priv, double radius)
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double volume_diff, volume_factor = 0;
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unsigned volume;
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if (priv->radius == radius)
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return 0;
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else
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priv->radius = radius;
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priv->g_r = ceil(radius);
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priv->g_w = 2*priv->g_r+1;
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@ -106,10 +112,10 @@ static void resize_tmp(ass_synth_priv_t* priv, int w, int h)
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priv->tmp = malloc((priv->tmp_w + 1) * priv->tmp_h * sizeof(short));
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}
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ass_synth_priv_t* ass_synth_init(void)
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ass_synth_priv_t* ass_synth_init(double radius)
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{
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ass_synth_priv_t* priv = calloc(1, sizeof(ass_synth_priv_t));
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generate_tables(priv, blur_radius);
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generate_tables(priv, radius);
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return priv;
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}
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@ -236,7 +242,7 @@ static bitmap_t* fix_outline_and_shadow(bitmap_t* bm_g, bitmap_t* bm_o)
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unsigned char c_g, c_o;
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c_g = g[x];
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c_o = o[x];
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o[x] = (c_o > c_g) ? c_o : 0;
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o[x] = (c_o > c_g) ? c_o - c_g : 0;
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s[x] = (c_o < 0xFF - c_g) ? c_o + c_g : 0xFF;
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}
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g += bm_g->w;
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@ -248,10 +254,12 @@ static bitmap_t* fix_outline_and_shadow(bitmap_t* bm_g, bitmap_t* bm_o)
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return bm_s;
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}
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int glyph_to_bitmap(ass_synth_priv_t* priv, FT_Glyph glyph, FT_Glyph outline_glyph,
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bitmap_t** bm_g, bitmap_t** bm_o, bitmap_t** bm_s, int be)
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int glyph_to_bitmap(ass_synth_priv_t* priv, ass_synth_priv_t* priv_blur,
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FT_Glyph glyph, FT_Glyph outline_glyph, bitmap_t** bm_g,
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bitmap_t** bm_o, bitmap_t** bm_s, int be, double blur_radius)
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{
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const int bord = be ? ceil(blur_radius) : 0;
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int bord = be ? (be+1) : 0;
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bord = (blur_radius > 0.0) ? blur_radius : bord;
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assert(bm_g && bm_o && bm_s);
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@ -269,16 +277,28 @@ int glyph_to_bitmap(ass_synth_priv_t* priv, FT_Glyph glyph, FT_Glyph outline_gly
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return 1;
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}
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}
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if (*bm_o)
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if (*bm_o) {
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resize_tmp(priv, (*bm_o)->w, (*bm_o)->h);
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resize_tmp(priv_blur, (*bm_o)->w, (*bm_o)->h);
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}
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resize_tmp(priv, (*bm_g)->w, (*bm_g)->h);
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resize_tmp(priv_blur, (*bm_g)->w, (*bm_g)->h);
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if (be) {
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while (be--) {
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if (*bm_o)
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blur((*bm_o)->buffer, priv->tmp, (*bm_o)->w, (*bm_o)->h, (*bm_o)->w, (int*)priv->gt2, priv->g_r, priv->g_w);
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else
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blur((*bm_g)->buffer, priv->tmp, (*bm_g)->w, (*bm_g)->h, (*bm_g)->w, (int*)priv->gt2, priv->g_r, priv->g_w);
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}
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} else
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if (blur_radius > 0.0) {
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generate_tables(priv_blur, blur_radius);
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if (*bm_o)
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blur((*bm_o)->buffer, priv_blur->tmp, (*bm_o)->w, (*bm_o)->h, (*bm_o)->w, (int*)priv_blur->gt2, priv_blur->g_r, priv_blur->g_w);
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else
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blur((*bm_g)->buffer, priv_blur->tmp, (*bm_g)->w, (*bm_g)->h, (*bm_g)->w, (int*)priv_blur->gt2, priv_blur->g_r, priv_blur->g_w);
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}
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if (*bm_o)
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*bm_s = fix_outline_and_shadow(*bm_g, *bm_o);
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@ -28,7 +28,7 @@
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typedef struct ass_synth_priv_s ass_synth_priv_t;
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ass_synth_priv_t* ass_synth_init(void);
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ass_synth_priv_t* ass_synth_init(double);
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void ass_synth_done(ass_synth_priv_t* priv);
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typedef struct bitmap_s {
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@ -46,7 +46,7 @@ typedef struct bitmap_s {
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* \param bm_g out: pointer to the bitmap of glyph shadow is returned here
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* \param be 1 = produces blurred bitmaps, 0 = normal bitmaps
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*/
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int glyph_to_bitmap(ass_synth_priv_t* priv, FT_Glyph glyph, FT_Glyph outline_glyph, bitmap_t** bm_g, bitmap_t** bm_o, bitmap_t** bm_s, int be);
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int glyph_to_bitmap(ass_synth_priv_t* priv, ass_synth_priv_t* priv_blur, FT_Glyph glyph, FT_Glyph outline_glyph, bitmap_t** bm_g, bitmap_t** bm_o, bitmap_t** bm_s, int be, double blur_radius);
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void ass_free_bitmap(bitmap_t* bm);
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@ -42,6 +42,7 @@ typedef struct bitmap_hash_key_s {
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unsigned outline; // border width, 16.16 fixed point value
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int bold, italic;
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char be; // blur edges
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double blur; // gaussian blur
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unsigned scale_x, scale_y; // 16.16
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int frx, fry, frz; // signed 16.16
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@ -43,6 +43,8 @@
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#define MAX_GLYPHS 1000
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#define MAX_LINES 100
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#define BE_RADIUS 1.5
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#define BLUR_MAX_RADIUS 50.0
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static int last_render_id = 0;
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@ -80,6 +82,7 @@ struct ass_renderer_s {
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ass_settings_t settings;
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int render_id;
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ass_synth_priv_t* synth_priv;
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ass_synth_priv_t* synth_priv_blur;
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ass_image_t* images_root; // rendering result is stored here
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ass_image_t* prev_images_root;
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@ -112,6 +115,7 @@ typedef struct glyph_info_s {
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int asc, desc; // font max ascender and descender
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// int height;
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int be; // blur edges
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double blur; // gaussian blur
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int shadow;
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double frx, fry, frz; // rotation
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@ -160,6 +164,7 @@ typedef struct render_context_s {
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char detect_collisions;
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uint32_t fade; // alpha from \fad
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char be; // blur edges
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double blur; // gaussian blur
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int shadow;
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int drawing_mode; // not implemented; when != 0 text is discarded, except for style override tags
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@ -258,7 +263,8 @@ ass_renderer_t* ass_renderer_init(ass_library_t* library)
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goto ass_init_exit;
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}
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priv->synth_priv = ass_synth_init();
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priv->synth_priv = ass_synth_init(BE_RADIUS);
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priv->synth_priv_blur = ass_synth_init(BLUR_MAX_RADIUS);
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priv->library = library;
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priv->ftlibrary = ft;
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@ -688,7 +694,55 @@ static char* parse_tag(char* p, double pwr) {
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if ((*p == '}') || (*p == 0))
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return p;
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if (mystrcmp(&p, "fsc")) {
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// New tags introduced in vsfilter 2.39
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if (mystrcmp(&p, "xbord")) {
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double val;
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if (mystrtod(&p, &val))
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mp_msg(MSGT_ASS, MSGL_V, "stub: \\xbord%.2f\n", val);
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} else if (mystrcmp(&p, "ybord")) {
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double val;
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if (mystrtod(&p, &val))
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mp_msg(MSGT_ASS, MSGL_V, "stub: \\ybord%.2f\n", val);
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} else if (mystrcmp(&p, "xshad")) {
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int val;
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if (mystrtoi(&p, 10, &val))
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mp_msg(MSGT_ASS, MSGL_V, "stub: \\xshad%d\n", val);
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} else if (mystrcmp(&p, "yshad")) {
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int val;
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if (mystrtoi(&p, 10, &val))
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mp_msg(MSGT_ASS, MSGL_V, "stub: \\yshad%d\n", val);
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} else if (mystrcmp(&p, "fax")) {
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int val;
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if (mystrtoi(&p, 10, &val))
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mp_msg(MSGT_ASS, MSGL_V, "stub: \\fax%d\n", val);
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} else if (mystrcmp(&p, "fay")) {
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int val;
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if (mystrtoi(&p, 10, &val))
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mp_msg(MSGT_ASS, MSGL_V, "stub: \\fay%d\n", val);
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} else if (mystrcmp(&p, "iclip")) {
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int x0, y0, x1, y1;
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int res = 1;
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skip('(');
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res &= mystrtoi(&p, 10, &x0);
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skip(',');
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res &= mystrtoi(&p, 10, &y0);
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skip(',');
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res &= mystrtoi(&p, 10, &x1);
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skip(',');
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res &= mystrtoi(&p, 10, &y1);
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skip(')');
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mp_msg(MSGT_ASS, MSGL_V, "stub: \\iclip(%d,%d,%d,%d)\n", x0, y0, x1, y1);
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} else if (mystrcmp(&p, "blur")) {
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double val;
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if (mystrtod(&p, &val)) {
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val = (val < 0) ? 0 : val;
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val = (val > BLUR_MAX_RADIUS) ? BLUR_MAX_RADIUS : val;
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render_context.blur = val;
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} else
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render_context.blur = 0.0;
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// ASS standard tags
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} else if (mystrcmp(&p, "fsc")) {
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char tp = *p++;
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double val;
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if (tp == 'x') {
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@ -760,10 +814,12 @@ static char* parse_tag(char* p, double pwr) {
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else k = ((double)(t - t1)) / delta_t;
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x = k * (x2 - x1) + x1;
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y = k * (y2 - y1) + y1;
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if (render_context.evt_type != EVENT_POSITIONED) {
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render_context.pos_x = x;
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render_context.pos_y = y;
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render_context.detect_collisions = 0;
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render_context.evt_type = EVENT_POSITIONED;
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}
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} else if (mystrcmp(&p, "frx")) {
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double val;
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if (mystrtod(&p, &val)) {
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@ -839,10 +895,12 @@ static char* parse_tag(char* p, double pwr) {
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v2 = strtol(p, &p, 10);
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skip(')');
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mp_msg(MSGT_ASS, MSGL_DBG2, "pos(%d, %d)\n", v1, v2);
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if (render_context.evt_type != EVENT_POSITIONED) {
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render_context.evt_type = EVENT_POSITIONED;
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render_context.detect_collisions = 0;
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render_context.pos_x = v1;
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render_context.pos_y = v2;
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}
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} else if (mystrcmp(&p, "fad")) {
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int a1, a2, a3;
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long long t1, t2, t3, t4;
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@ -985,9 +1043,12 @@ static char* parse_tag(char* p, double pwr) {
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reset_render_context();
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} else if (mystrcmp(&p, "be")) {
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int val;
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if (mystrtoi(&p, 10, &val))
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render_context.be = val ? 1 : 0;
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else
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if (mystrtoi(&p, 10, &val)) {
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// Clamp to 10, since high values need excessive CPU
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val = (val < 0) ? 0 : val;
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val = (val > 10) ? 10 : val;
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render_context.be = val;
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} else
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render_context.be = 0;
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} else if (mystrcmp(&p, "b")) {
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int b;
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@ -1181,6 +1242,7 @@ static void reset_render_context(void)
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render_context.scale_y = render_context.style->ScaleY;
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render_context.hspacing = render_context.style->Spacing;
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render_context.be = 0;
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render_context.blur = 0.0;
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render_context.shadow = render_context.style->Shadow;
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render_context.frx = render_context.fry = 0.;
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render_context.frz = M_PI * render_context.style->Angle / 180.;
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@ -1321,9 +1383,10 @@ static void get_bitmap_glyph(glyph_info_t* info)
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// render glyph
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error = glyph_to_bitmap(ass_renderer->synth_priv,
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ass_renderer->synth_priv_blur,
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info->glyph, info->outline_glyph,
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&info->bm, &info->bm_o,
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&info->bm_s, info->be);
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&info->bm_s, info->be, info->blur);
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if (error)
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info->symbol = 0;
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@ -1815,6 +1878,7 @@ static int ass_render_event(ass_event_t* event, event_images_t* event_images)
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text_info.glyphs[text_info.length].effect_timing = render_context.effect_timing;
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text_info.glyphs[text_info.length].effect_skip_timing = render_context.effect_skip_timing;
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text_info.glyphs[text_info.length].be = render_context.be;
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text_info.glyphs[text_info.length].blur = render_context.blur;
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text_info.glyphs[text_info.length].shadow = render_context.shadow;
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text_info.glyphs[text_info.length].frx = render_context.frx;
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text_info.glyphs[text_info.length].fry = render_context.fry;
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@ -1839,6 +1903,7 @@ static int ass_render_event(ass_event_t* event, event_images_t* event_images)
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text_info.glyphs[text_info.length].hash_key.ch = code;
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text_info.glyphs[text_info.length].hash_key.advance = shift;
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text_info.glyphs[text_info.length].hash_key.be = render_context.be;
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text_info.glyphs[text_info.length].hash_key.blur = render_context.blur;
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text_info.length++;
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