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Code Issues Releases Wiki Activity

Support separate rotation angle for each glyph.

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@20301 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
eugeni 2006-10-18 21:11:29 +00:00
parent 5b5798f039
commit 2d3ad59854
1 changed files with 17 additions and 10 deletions
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27
libass/ass_render.c
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@ -90,6 +90,7 @@ typedef struct glyph_info_s {
// int height;
int be; // blur edges
int shadow;
double frz; // z-axis rotation
glyph_hash_key_t hash_key;
} glyph_info_t;
@ -1714,6 +1715,7 @@ static int ass_render_event(ass_event_t* event, event_images_t* event_images)
text_info.glyphs[text_info.length].desc = get_face_descender(render_context.face);
text_info.glyphs[text_info.length].be = render_context.be;
text_info.glyphs[text_info.length].shadow = render_context.shadow;
text_info.glyphs[text_info.length].frz = render_context.rotation;
text_info.length++;
@ -1854,16 +1856,11 @@ static int ass_render_event(ass_event_t* event, event_images_t* event_images)
}
// rotate glyphs if needed
if (render_context.rotation != 0.) {
double angle = render_context.rotation;
{
double angle = 0.;
FT_Vector center;
FT_Matrix matrix_rotate;
matrix_rotate.xx = (FT_Fixed)( cos( angle ) * 0x10000L );
matrix_rotate.xy = (FT_Fixed)( -sin( angle ) * 0x10000L );
matrix_rotate.yx = (FT_Fixed)( sin( angle ) * 0x10000L );
matrix_rotate.yy = (FT_Fixed)( cos( angle ) * 0x10000L );
if (((render_context.org_x != 0) || (render_context.org_y != 0)) && (render_context.evt_type == EVENT_POSITIONED)) {
center.x = render_context.org_x;
center.y = render_context.org_y;
@ -1879,13 +1876,23 @@ static int ass_render_event(ass_event_t* event, event_images_t* event_images)
}
for (i = 0; i < text_info.length; ++i) {
FT_Vector start;
FT_Vector start_old;
glyph_info_t* info = text_info.glyphs + i;
if (info->frz < 0.00001 && info->frz > -0.00001)
continue;
if (info->frz != angle) {
angle = info->frz;
matrix_rotate.xx = (FT_Fixed)( cos( angle ) * 0x10000L );
matrix_rotate.xy = (FT_Fixed)( -sin( angle ) * 0x10000L );
matrix_rotate.yx = (FT_Fixed)( sin( angle ) * 0x10000L );
matrix_rotate.yy = (FT_Fixed)( cos( angle ) * 0x10000L );
}
// calculating shift vector
// shift = (position - center)*M - (position - center)
FT_Vector start;
FT_Vector start_old;
start.x = (info->pos.x + device_x - center.x) << 6;
start.y = - (info->pos.y + device_y - center.y) << 6;
start_old.x = start.x;