static int draw_glyphs(DrawTextContext *s, AVFrame *frame,
int width, int height,
FFDrawColor *color,
int x, int y, int borderw)
{
char *text = s->expanded_text.str;
uint32_t code = 0;
int i, x1, y1;
uint8_t *p;
Glyph *glyph = NULL;
for (i = 0, p = text; *p; i++) {
FT_Bitmap bitmap;
Glyph dummy = { 0 };
GET_UTF8(code, *p++, continue;);
/* skip new line chars, just go to new line */
if (code == '\n' || code == '\r' || code == '\t')
continue;
dummy.code = code;
glyph = av_tree_find(s->glyphs, &dummy, glyph_cmp, NULL);
bitmap = borderw ? glyph->border_bitmap : glyph->bitmap;
if (glyph->bitmap.pixel_mode != FT_PIXEL_MODE_MONO &&
glyph->bitmap.pixel_mode != FT_PIXEL_MODE_GRAY)
return AVERROR(EINVAL);
x1 = s->positions[i].x+s->x+x - borderw;
y1 = s->positions[i].y+s->y+y - borderw;
ff_blend_mask(&s->dc, color,
frame->data, frame->linesize, width, height,
bitmap.buffer, bitmap.pitch,
bitmap.width, bitmap.rows,
bitmap.pixel_mode == FT_PIXEL_MODE_MONO ? 0 : 3,
0, x1, y1);
}
static void overlay_ass_image(AssContext *ass, AVFrame *picref,
const ASS_Image *image)
{
for (; image; image = image->next) {
uint8_t rgba_color[] = {AR(image->color), AG(image->color), AB(image->color), AA(image->color)};
FFDrawColor color;
ff_draw_color(&ass->draw, &color, rgba_color);
ff_blend_mask(&ass->draw, &color,
picref->data, picref->linesize,
picref->width, picref->height,
image->bitmap, image->stride, image->w, image->h,
3, 0, image->dst_x, image->dst_y);
}
}
