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material: track if material change is layer change

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We now pass a boolean to _cogl_material_pre_change_notify to know when
a material change is as a result of a layer change. We plan to use this
information to avoid notifying the backends about material changes if
they are as a result of layer changes. This will simplify the handling
of state changes in the backends because they can assume that layer and
material changes are mutually exclusive.
This commit is contained in:
Robert Bragg 2010-09-13 21:26:31 +01:00
parent bc187dc31e
commit 3a2a10d2e8
1 changed files with 29 additions and 23 deletions
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52
cogl/cogl-material.c
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@ -1080,7 +1080,8 @@ reparent_children_cb (CoglMaterialNode *node,
static void
_cogl_material_pre_change_notify (CoglMaterial *material,
CoglMaterialState change,
const CoglColor *new_color)
const CoglColor *new_color,
gboolean from_layer_change)
{
CoglMaterial *authority;
@ -1246,7 +1247,8 @@ _cogl_material_add_layer_difference (CoglMaterial *material,
*/
_cogl_material_pre_change_notify (material,
COGL_MATERIAL_STATE_LAYERS,
NULL);
NULL,
FALSE);
material->differences |= COGL_MATERIAL_STATE_LAYERS;
@ -1275,7 +1277,8 @@ _cogl_material_remove_layer_difference (CoglMaterial *material,
*/
_cogl_material_pre_change_notify (material,
COGL_MATERIAL_STATE_LAYERS,
NULL);
NULL,
FALSE);
layer->owner = NULL;
cogl_object_unref (layer);
@ -1330,7 +1333,8 @@ handle_automatic_blend_enable (CoglMaterial *material,
*/
_cogl_material_pre_change_notify (material,
COGL_MATERIAL_STATE_REAL_BLEND_ENABLE,
NULL);
NULL,
FALSE);
material->real_blend_enable = blend_enable;
}
}
@ -1402,7 +1406,8 @@ _cogl_material_prune_to_n_layers (CoglMaterial *material, int n)
*/
_cogl_material_pre_change_notify (material,
COGL_MATERIAL_STATE_LAYERS,
NULL);
NULL,
FALSE);
notified_change = TRUE;
}
@ -1566,7 +1571,8 @@ _cogl_material_layer_pre_change_notify (CoglMaterial *required_owner,
*/
_cogl_material_pre_change_notify (required_owner,
COGL_MATERIAL_STATE_LAYERS,
NULL);
NULL,
TRUE);
/* Unlike materials; layers are simply considered immutable once
* they have dependants - either direct children, or another
@ -3528,7 +3534,7 @@ cogl_material_set_color (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, color);
_cogl_material_pre_change_notify (material, state, color, FALSE);
material->color = *color;
@ -3602,7 +3608,7 @@ _cogl_material_set_blend_enabled (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
material->blend_enable = enable;
@ -3648,7 +3654,7 @@ cogl_material_set_ambient (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
lighting_state = &material->big_state->lighting_state;
lighting_state->ambient[0] = cogl_color_get_red_float (ambient);
@ -3698,7 +3704,7 @@ cogl_material_set_diffuse (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
lighting_state = &material->big_state->lighting_state;
lighting_state->diffuse[0] = cogl_color_get_red_float (diffuse);
@ -3756,7 +3762,7 @@ cogl_material_set_specular (CoglMaterial *material, const CoglColor *specular)
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
lighting_state = &material->big_state->lighting_state;
lighting_state->specular[0] = cogl_color_get_red_float (specular);
@ -3812,7 +3818,7 @@ cogl_material_set_shininess (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
lighting_state = &material->big_state->lighting_state;
lighting_state->shininess = shininess;
@ -3856,7 +3862,7 @@ cogl_material_set_emission (CoglMaterial *material, const CoglColor *emission)
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
lighting_state = &material->big_state->lighting_state;
lighting_state->emission[0] = cogl_color_get_red_float (emission);
@ -3893,7 +3899,7 @@ cogl_material_set_alpha_test_function (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
alpha_state = &material->big_state->alpha_state;
alpha_state->alpha_func = alpha_func;
@ -4046,7 +4052,7 @@ cogl_material_set_blend (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
blend_state = &material->big_state->blend_state;
#ifndef HAVE_COGL_GLES
@ -4115,7 +4121,7 @@ cogl_material_set_blend_constant (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
blend_state = &material->big_state->blend_state;
blend_state->blend_constant = *constant_color;
@ -4165,7 +4171,7 @@ cogl_material_set_user_program (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
if (program != COGL_INVALID_HANDLE)
_cogl_material_set_backend (material, COGL_MATERIAL_BACKEND_DEFAULT);
@ -4223,7 +4229,7 @@ cogl_material_set_depth_test_enabled (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
material->big_state->depth_state.depth_test_enabled = enable;
@ -4265,7 +4271,7 @@ cogl_material_set_depth_writing_enabled (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
material->big_state->depth_state.depth_writing_enabled = enable;
@ -4307,7 +4313,7 @@ cogl_material_set_depth_test_function (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
material->big_state->depth_state.depth_test_function = function;
@ -4355,7 +4361,7 @@ cogl_material_set_depth_range (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
material->big_state->depth_state.depth_range_near = near_val;
material->big_state->depth_state.depth_range_far = far_val;
@ -4415,7 +4421,7 @@ _cogl_material_set_fog_state (CoglMaterial *material,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
material->big_state->fog_state = *fog_state;
@ -5280,7 +5286,7 @@ cogl_material_set_point_size (CoglHandle handle,
* - If the material isn't currently an authority for the state being
* changed, then initialize that state from the current authority.
*/
_cogl_material_pre_change_notify (material, state, NULL);
_cogl_material_pre_change_notify (material, state, NULL, FALSE);
material->big_state->point_size = point_size;