// 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(); }