static int
draw_child(struct sprite *s, struct srt *srt, struct sprite_trans * ts) {
struct sprite_trans temp;
struct matrix temp_matrix;
struct sprite_trans *t = trans_mul(&s->t, ts, &temp, &temp_matrix);
switch (s->type) {
case TYPE_PICTURE:
switch_program(t, PROGRAM_PICTURE);
sprite_drawquad(s->s.pic, srt, t);
return 0;
case TYPE_POLYGON:
switch_program(t, PROGRAM_PICTURE);
sprite_drawpolygon(s->s.poly, srt, t);
return 0;
case TYPE_LABEL:
if (s->data.text) {
switch_program(t, s->s.label->edge ? PROGRAM_TEXT_EDGE : PROGRAM_TEXT);
label_draw(s->data.text, s->s.label,srt,t);
}
return 0;
case TYPE_ANCHOR:
anchor_update(s, srt, t);
return 0;
case TYPE_ANIMATION:
break;
case TYPE_PANNEL:
if (s->data.scissor) {
// enable scissor
set_scissor(s->s.pannel, srt, t);
return 1;
} else {
return 0;
}
default:
// todo : invalid type
return 0;
}
// draw animation
struct pack_animation *ani = s->s.ani;
int frame = real_frame(s) + s->start_frame;
struct pack_frame * pf = &ani->frame[frame];
int i;
int scissor = 0;
for (i=0;i<pf->n;i++) {
struct pack_part *pp = &pf->part[i];
int index = pp->component_id;
struct sprite * child = s->data.children[index];
if (child == NULL || child->visible == false) {
continue;
}
struct sprite_trans temp2;
struct matrix temp_matrix2;
struct sprite_trans *ct = trans_mul(&pp->t, t, &temp2, &temp_matrix2);
scissor += draw_child(child, srt, ct);
}
for (i=0;i<scissor;i++) {
scissor_pop();
}
return 0;
}
static void
drawparticle(struct sprite *s, struct particle_system *ps, struct pack_picture *pic, const struct srt *srt) {
int n = ps->particleCount;
int i;
struct matrix *old_m = s->t.mat;
uint32_t old_c = s->t.color;
shader_blend(ps->config->srcBlend, ps->config->dstBlend);
for (i=0;i<n;i++) {
struct particle *p = &ps->particles[i];
struct matrix *mat = &ps->matrix[i];
uint32_t color = p->color_val;
s->t.mat = mat;
s->t.color = color;
sprite_drawquad(pic, NULL, &s->t);
}
shader_defaultblend();
s->t.mat = old_m;
s->t.color = old_c;
}