C++ (Cpp) glw_rtt_texture示例

示例#1

文件： glw_bloom.c 项目： dreamcat4/showtime

static void 
glw_bloom_render(glw_t *w, const glw_rctx_t *rc)
{
  glw_bloom_t *b = (void *)w;
  float a = rc->rc_alpha * w->glw_alpha;
  glw_rctx_t rc0;
  glw_t *c;

  rc0 = *rc;
  rc0.rc_alpha = a;
  TAILQ_FOREACH(c, &w->glw_childs, glw_parent_link)
    glw_render0(c, &rc0);

  if(b->b_glow < 0.01)
    return;

  b->b_need_render = a > 0.01;

  if(!b->b_need_render)
    return;
  
  if(glw_is_focusable(w))
    glw_store_matrix(w, rc);
  
  rc0 = *rc;

  glw_Scalef(&rc0, 
	     1.0 + EDGE_SIZE / rc->rc_width, 
	     1.0 + EDGE_SIZE / rc->rc_height, 
	     1.0);
#if 0
  glw_render(&b->b_render, w->glw_root, &rc0, 
	     GLW_RENDER_MODE_QUADS, GLW_RENDER_ATTRIBS_TEX,
	     &glw_rtt_texture(&b->b_rtt[0]), 1, 1, 1, a);
#endif

  a *= b->b_glow;

  glw_blendmode(w->glw_root, GLW_BLEND_ADDITIVE);
  glw_renderer_draw(&b->b_render, w->glw_root, &rc0, 
		    &glw_rtt_texture(&b->b_rtt[0]), 
		    NULL, NULL, a * 0.50, 0, NULL);


  glw_renderer_draw(&b->b_render, w->glw_root, &rc0, 
		    &glw_rtt_texture(&b->b_rtt[1]),
		    NULL, NULL, a * 0.44, 0, NULL);


  glw_renderer_draw(&b->b_render, w->glw_root, &rc0, 
		    &glw_rtt_texture(&b->b_rtt[2]),
		    NULL, NULL, a * 0.33, 0, NULL);
 
  glw_blendmode(w->glw_root, GLW_BLEND_NORMAL);
}

示例#2

文件： glw_fx_texrot.c 项目： carlinx/showtime

static void 
glw_fx_texrot_render(glw_t *w, glw_rctx_t *rc)
{
  glw_fx_texrot_t *fx = (void *)w;
  glw_loadable_texture_t *glt = fx->fx_tex;
  float a = rc->rc_alpha * w->glw_alpha;

  fx->fx_need_render = a > 0.01;

  if(glt != NULL && glt->glt_state == GLT_STATE_VALID && a > 0.01) {
    glw_renderer_draw(&fx->fx_render, w->glw_root, rc, 
		      &glw_rtt_texture(&fx->fx_rtt), NULL, NULL, a);
  }
}