예제 #1
0
// draw callback is where all the main GL rendering happens
static void
_draw_gl(Evas_Object *obj)
{
   Evas_GL_API *gl = elm_glview_gl_api_get(obj);
   GLData *gld = evas_object_data_get(obj, "gld");

   if (!gld) return;
   int w, h;

   elm_glview_size_get(obj, &w, &h);

   gl->glViewport(0, 0, w, h);
   gl->glClearColor(red, 0.8, 0.3, 1);
   gl->glClear(GL_COLOR_BUFFER_BIT);

   // Draw a Triangle
   gl->glEnable(GL_BLEND);

   gl->glUseProgram(gld->program);

   gl->glBindBuffer(GL_ARRAY_BUFFER, gld->vbo);
   gl->glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0, 0);
   gl->glEnableVertexAttribArray(0);

   gl->glDrawArrays(GL_TRIANGLES, 0, 3);

   // Optional - Flush the GL pipeline
   gl->glFinish();

   red -= 0.1;
   if (0.0 > red) red = 1.0;
}
static void
_draw_gl(Evas_Object *obj)
{
   Evas_GL_API *gl = elm_glview_gl_api_get(obj);
   GLData *gld = evas_object_data_get(obj, "gld");
   if (!gld) return;

   render_gears(gld);
   gl->glFinish();
}