C++ (Cpp) glw_program_set_modelview 예제들

예제 #1

파일: glw_opengl_ogl.c 프로젝트: Rautz/showtime

void
glw_wirecube(glw_root_t *gr, const glw_rctx_t *rc)
{
  glw_backend_root_t *gbr = &gr->gr_be;
  if(gbr->gbr_delayed_rendering)
    return;

  glw_load_program(gbr, gbr->gbr_renderer_flat);
  glw_program_set_modelview(gbr, rc);
  glw_program_set_uniform_color(gbr, 1,1,1,1);

  glBegin(GL_LINE_LOOP);
  glVertex3f(-1.0, -1.0, -1.0);
  glVertex3f( 1.0, -1.0, -1.0);
  glVertex3f( 1.0,  1.0, -1.0);
  glVertex3f(-1.0,  1.0, -1.0);
  glEnd();

  glBegin(GL_LINE_LOOP);
  glVertex3f(-1.0, -1.0,  1.0);
  glVertex3f( 1.0, -1.0,  1.0);
  glVertex3f( 1.0,  1.0,  1.0);
  glVertex3f(-1.0,  1.0,  1.0);
  glEnd();

  glBegin(GL_LINE_LOOP);
  glVertex3f(-1.0, -1.0,  1.0);
  glVertex3f(-1.0, -1.0, -1.0);
  glVertex3f(-1.0,  1.0, -1.0);
  glVertex3f(-1.0,  1.0,  1.0);
  glEnd();

  glBegin(GL_LINE_LOOP);
  glVertex3f( 1.0, -1.0,  1.0);
  glVertex3f( 1.0, -1.0, -1.0);
  glVertex3f( 1.0,  1.0, -1.0);
  glVertex3f( 1.0,  1.0,  1.0);
  glEnd();

  glBegin(GL_LINE_LOOP);
  glVertex3f( 1.0, -1.0,  1.0);
  glVertex3f( 1.0, -1.0, -1.0);
  glVertex3f(-1.0, -1.0, -1.0);
  glVertex3f(-1.0, -1.0,  1.0);
  glEnd();

  glBegin(GL_LINE_LOOP);
  glVertex3f( 1.0,  1.0,  1.0);
  glVertex3f( 1.0,  1.0, -1.0);
  glVertex3f(-1.0,  1.0, -1.0);
  glVertex3f(-1.0,  1.0,  1.0);
  glEnd();
}

예제 #2

파일: glw_video_opengl.c 프로젝트: dreamcat4/showtime

/**
 *  Video widget render
 */
void
glw_render_video_quad(int interlace, int rectmode, int width, int height,
                      int bob1, int bob2,
                      glw_backend_root_t *gbr, glw_program_t *gp,
                      const glw_video_t *gv, glw_rctx_t *rc)
{
  float x1, x2, y1, y2;
  float b1 = 0, b2 = 0;

  static const float vertices[8] = {-1, -1, 1, -1, 1, 1, -1, 1};
  const uint8_t elements[6] = {0,1,2,0,2,3};
  float tc[12];

  x1 = 0;
  y1 = 0;

  if(rectmode) {

    x2 = width;
    y2 = height;

  } else {

    x2 = 1;
    y2 = 1;

    if(interlace) {

      b1 = (0.5 * bob1) / (float)height;
      b2 = (0.5 * bob2) / (float)height;
    }
  }

  tc[0] = x1;
  tc[1] = y2 - b1;
  tc[2] = y2 - b2;

  tc[3] = x2;
  tc[4] = y2 - b1;
  tc[5] = y2 - b2;

  tc[6] = x2;
  tc[7] = y1 - b1;
  tc[8] = y1 - b2;

  tc[9] = x1;
  tc[10] = y1 - b1;
  tc[11] = y1 - b2;

  glw_load_program(gbr, gp);
  glw_program_set_uniform_color(gbr, 1, 1, 1, rc->rc_alpha);
  glw_program_set_modelview(gbr, rc);
  if(gp->gp_uniform_blend != -1)
    glUniform1f(gp->gp_uniform_blend, gv->gv_blend);

  if(gp->gp_uniform_colormtx != -1)
    glUniformMatrix4fv(gp->gp_uniform_colormtx, 1, GL_FALSE,
                       gv->gv_cmatrix_cur);

  glVertexAttribPointer(gp->gp_attribute_texcoord, 3, GL_FLOAT, 0, 0, tc);
  glVertexAttribPointer(gp->gp_attribute_position, 2, GL_FLOAT, 0, 0, vertices);
  glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_BYTE, elements);
}