static CoglBool
toggle_texcood_attribute_enabled_cb (int bit_num, void *user_data)
{
ForeachChangedBitState *state = user_data;
CoglContext *context = state->context;
_COGL_RETURN_VAL_IF_FAIL ((context->private_feature_flags &
COGL_PRIVATE_FEATURE_FIXED_FUNCTION),
FALSE);
#if defined (HAVE_COGL_GL) || defined (HAVE_COGL_GLES)
{
CoglBool enabled = _cogl_bitmask_get (state->new_bits, bit_num);
GE( context, glClientActiveTexture (GL_TEXTURE0 + bit_num) );
if (enabled)
GE( context, glEnableClientState (GL_TEXTURE_COORD_ARRAY) );
else
GE( context, glDisableClientState (GL_TEXTURE_COORD_ARRAY) );
}
#endif
return TRUE;
}
static gboolean
toggle_texcood_attribute_enabled_cb (int bit_num, void *user_data)
{
ForeachChangedBitState *state = user_data;
CoglContext *context = state->context;
_COGL_RETURN_VAL_IF_FAIL (_cogl_has_private_feature
(context, COGL_PRIVATE_FEATURE_GL_FIXED),
FALSE);
#ifdef HAVE_COGL_GL
{
gboolean enabled = _cogl_bitmask_get (state->new_bits, bit_num);
GE( context, glClientActiveTexture (GL_TEXTURE0 + bit_num) );
if (enabled)
GE( context, glEnableClientState (GL_TEXTURE_COORD_ARRAY) );
else
GE( context, glDisableClientState (GL_TEXTURE_COORD_ARRAY) );
}
#endif
return TRUE;
}
static CoglBool
toggle_custom_attribute_enabled_cb (int bit_num, void *user_data)
{
ForeachChangedBitState *state = user_data;
CoglBool enabled = _cogl_bitmask_get (state->new_bits, bit_num);
CoglContext *context = state->context;
if (enabled)
GE( context, glEnableVertexAttribArray (bit_num) );
else
GE( context, glDisableVertexAttribArray (bit_num) );
return TRUE;
}
static gboolean
toggle_builtin_attribute_enabled_cb (int bit_num, void *user_data)
{
ForeachChangedBitState *state = user_data;
CoglContext *context = state->context;
_COGL_RETURN_VAL_IF_FAIL (_cogl_has_private_feature
(context, COGL_PRIVATE_FEATURE_GL_FIXED),
FALSE);
#ifdef HAVE_COGL_GL
{
gboolean enabled = _cogl_bitmask_get (state->new_bits, bit_num);
GLenum cap;
switch (bit_num)
{
case COGL_ATTRIBUTE_NAME_ID_COLOR_ARRAY:
cap = GL_COLOR_ARRAY;
break;
case COGL_ATTRIBUTE_NAME_ID_POSITION_ARRAY:
cap = GL_VERTEX_ARRAY;
break;
case COGL_ATTRIBUTE_NAME_ID_NORMAL_ARRAY:
cap = GL_NORMAL_ARRAY;
break;
default:
g_assert_not_reached ();
}
if (enabled)
GE (context, glEnableClientState (cap));
else
GE (context, glDisableClientState (cap));
}
#endif
return TRUE;
}
static CoglBool
toggle_builtin_attribute_enabled_cb (int bit_num, void *user_data)
{
ForeachChangedBitState *state = user_data;
CoglContext *context = state->context;
_COGL_RETURN_VAL_IF_FAIL ((context->private_feature_flags &
COGL_PRIVATE_FEATURE_FIXED_FUNCTION),
FALSE);
#if defined (HAVE_COGL_GL) || defined (HAVE_COGL_GLES)
{
CoglBool enabled = _cogl_bitmask_get (state->new_bits, bit_num);
GLenum cap;
switch (bit_num)
{
case COGL_ATTRIBUTE_NAME_ID_COLOR_ARRAY:
cap = GL_COLOR_ARRAY;
break;
case COGL_ATTRIBUTE_NAME_ID_POSITION_ARRAY:
cap = GL_VERTEX_ARRAY;
break;
case COGL_ATTRIBUTE_NAME_ID_NORMAL_ARRAY:
cap = GL_NORMAL_ARRAY;
break;
}
if (enabled)
GE (context, glEnableClientState (cap));
else
GE (context, glDisableClientState (cap));
}
#endif
return TRUE;
}
static CoglBoxedValue *
_cogl_pipeline_override_uniform (CoglPipeline *pipeline,
int location)
{
CoglPipelineState state = COGL_PIPELINE_STATE_UNIFORMS;
CoglPipelineUniformsState *uniforms_state;
int override_index;
_COGL_GET_CONTEXT (ctx, NULL);
g_return_val_if_fail (cogl_is_pipeline (pipeline), NULL);
g_return_val_if_fail (location >= 0, NULL);
g_return_val_if_fail (location < ctx->n_uniform_names, NULL);
/* - Flush journal primitives referencing the current state.
* - Make sure the pipeline has no dependants so it may be modified.
* - If the pipeline isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_pipeline_pre_change_notify (pipeline, state, NULL, FALSE);
uniforms_state = &pipeline->big_state->uniforms_state;
/* Count the number of bits that are set below this location. That
should give us the position where our new value should lie */
override_index = _cogl_bitmask_popcount_upto (&uniforms_state->override_mask,
location);
_cogl_bitmask_set (&uniforms_state->changed_mask, location, TRUE);
/* If this pipeline already has an override for this value then we
can just use it directly */
if (_cogl_bitmask_get (&uniforms_state->override_mask, location))
return uniforms_state->override_values + override_index;
/* We need to create a new override value in the right position
within the array. This is pretty inefficient but the hope is that
it will be much more common to modify an existing uniform rather
than modify a new one so it is more important to optimise the
former case. */
if (uniforms_state->override_values == NULL)
{
g_assert (override_index == 0);
uniforms_state->override_values = g_new (CoglBoxedValue, 1);
}
else
{
/* We need to grow the array and copy in the old values */
CoglBoxedValue *old_values = uniforms_state->override_values;
int old_size = _cogl_bitmask_popcount (&uniforms_state->override_mask);
uniforms_state->override_values = g_new (CoglBoxedValue, old_size + 1);
/* Copy in the old values leaving a gap for the new value */
memcpy (uniforms_state->override_values,
old_values,
sizeof (CoglBoxedValue) * override_index);
memcpy (uniforms_state->override_values + override_index + 1,
old_values + override_index,
sizeof (CoglBoxedValue) * (old_size - override_index));
g_free (old_values);
}
_cogl_boxed_value_init (uniforms_state->override_values + override_index);
_cogl_bitmask_set (&uniforms_state->override_mask, location, TRUE);
return uniforms_state->override_values + override_index;
}