C++ (Cpp) cogl_depth_state_set_range примеры использования

Пример #1

Файл: test-depth-test.c Проект: collects/cogl

static gboolean
draw_rectangle (TestState *state,
                int x,
                int y,
                TestDepthState *rect_state)
{
  guint8 Cr = MASK_RED (rect_state->color);
  guint8 Cg = MASK_GREEN (rect_state->color);
  guint8 Cb = MASK_BLUE (rect_state->color);
  guint8 Ca = MASK_ALPHA (rect_state->color);
  CoglHandle pipeline;
  CoglDepthState depth_state;

  cogl_depth_state_init (&depth_state);
  cogl_depth_state_set_test_enabled (&depth_state, rect_state->test_enable);
  cogl_depth_state_set_test_function (&depth_state, rect_state->test_function);
  cogl_depth_state_set_write_enabled (&depth_state, rect_state->write_enable);
  cogl_depth_state_set_range (&depth_state,
                              rect_state->range_near,
                              rect_state->range_far);

  pipeline = cogl_pipeline_new ();
  if (!cogl_pipeline_set_depth_state (pipeline, &depth_state, NULL))
    {
      cogl_object_unref (pipeline);
      return FALSE;
    }

  cogl_pipeline_set_color4ub (pipeline, Cr, Cg, Cb, Ca);

  cogl_set_source (pipeline);

  cogl_push_matrix ();
  cogl_translate (0, 0, rect_state->depth);
  cogl_rectangle (x * QUAD_WIDTH,
                  y * QUAD_WIDTH,
                  x * QUAD_WIDTH + QUAD_WIDTH,
                  y * QUAD_WIDTH + QUAD_WIDTH);
  cogl_pop_matrix ();

  cogl_object_unref (pipeline);

  return TRUE;
}

Пример #2

Файл: test-depth-test.c Проект: MaximeMorel/mutter

static CoglBool
draw_rectangle (TestState *state,
                int x,
                int y,
                TestDepthState *rect_state,
                CoglBool legacy_mode)
{
  uint8_t Cr = MASK_RED (rect_state->color);
  uint8_t Cg = MASK_GREEN (rect_state->color);
  uint8_t Cb = MASK_BLUE (rect_state->color);
  uint8_t Ca = MASK_ALPHA (rect_state->color);
  CoglPipeline *pipeline;
  CoglDepthState depth_state;

  cogl_depth_state_init (&depth_state);
  cogl_depth_state_set_test_enabled (&depth_state, rect_state->test_enable);
  cogl_depth_state_set_test_function (&depth_state, rect_state->test_function);
  cogl_depth_state_set_write_enabled (&depth_state, rect_state->write_enable);
  cogl_depth_state_set_range (&depth_state,
                              rect_state->range_near,
                              rect_state->range_far);

  pipeline = cogl_pipeline_new (test_ctx);
  if (!cogl_pipeline_set_depth_state (pipeline, &depth_state, NULL))
    {
      cogl_object_unref (pipeline);
      return FALSE;
    }

  if (!legacy_mode)
    {
      cogl_pipeline_set_color4ub (pipeline, Cr, Cg, Cb, Ca);

      cogl_framebuffer_set_depth_write_enabled (test_fb,
                                                rect_state->fb_write_enable);
      cogl_framebuffer_push_matrix (test_fb);
      cogl_framebuffer_translate (test_fb, 0, 0, rect_state->depth);
      cogl_framebuffer_draw_rectangle (test_fb,
                                       pipeline,
                                       x * QUAD_WIDTH,
                                       y * QUAD_WIDTH,
                                       x * QUAD_WIDTH + QUAD_WIDTH,
                                       y * QUAD_WIDTH + QUAD_WIDTH);
      cogl_framebuffer_pop_matrix (test_fb);
    }
  else
    {
      cogl_push_framebuffer (test_fb);
      cogl_push_matrix ();
      cogl_set_source_color4ub (Cr, Cg, Cb, Ca);
      cogl_translate (0, 0, rect_state->depth);
      cogl_rectangle (x * QUAD_WIDTH,
                      y * QUAD_WIDTH,
                      x * QUAD_WIDTH + QUAD_WIDTH,
                      y * QUAD_WIDTH + QUAD_WIDTH);
      cogl_pop_matrix ();
      cogl_pop_framebuffer ();
    }

  cogl_object_unref (pipeline);

  return TRUE;
}