Sorry, three commits in one, became difficult to untangle..

Editors Modules

* render/ module added in editors, moved the preview render code there and
  also shading related operators.
* physics/ module made more consistent with other modules. renaming files,
  making a single physics_ops.c for operators and keymaps. Also move all
  particle related operators here now.
* space_buttons/ now should have only operators relevant to the buttons
  specificially.

Updates & Notifiers

* Material/Texture/World/Lamp can now be passed to DAG_id_flush_update,
  which will go back to a callback in editors. Eventually these should
  be in the depsgraph itself, but for now this gives a unified call for
  doing updates.
* GLSL materials are now refreshed on changes. There's still various
  cases missing, 
* Preview icons now hook into this system, solving various update cases
  that were missed before.
* Also fixes issue in my last commit, where some preview would not render,
  problem is avoided in the new system.

Icon Rendering

* On systems with support for non-power of two textures, an OpenGL texture
  is now used instead of glDrawPixels. This avoids problems with icons get
  clipped on region borders. On my Linux desktop, this gives an 1.1x speedup,
  and on my Mac laptop a 2.3x speedup overall in redrawing the full window,
  with the default setup. The glDrawPixels implementation on Mac seems to
  have a lot of overhread.
* Preview icons are now drawn using proper premul alpha, and never faded so
  you can see them clearly.
* Also tried to fix issue with texture node preview rendering, globals can't
  be used with threads reliably.

1 files changed, 575 insertions, 0 deletions

diff --git a/source/blender/editors/physics/particle_object.c b/source/blender/editors/physics/particle_object.c
new file mode 100644
index 00000000000..cef630b6711
--- /dev/null
+++ b/source/blender/editors/physics/particle_object.c
@@ -0,0 +1,575 @@
+/**
+ * $Id:
+ *
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version. 
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ *
+ * The Original Code is Copyright (C) 2009 Blender Foundation.
+ * All rights reserved.
+ *
+ * Contributor(s): Blender Foundation
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "DNA_meshdata_types.h"
+#include "DNA_modifier_types.h"
+#include "DNA_object_types.h"
+#include "DNA_particle_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_windowmanager_types.h"
+
+#include "BLI_arithb.h"
+#include "BLI_listbase.h"
+
+#include "BKE_context.h"
+#include "BKE_depsgraph.h"
+#include "BKE_DerivedMesh.h"
+#include "BKE_cdderivedmesh.h"
+#include "BKE_main.h"
+#include "BKE_particle.h"
+#include "BKE_pointcache.h"
+#include "BKE_utildefines.h"
+
+#include "RNA_access.h"
+#include "RNA_define.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "ED_particle.h"
+
+#include "physics_intern.h"
+
+/********************** particle system slot operators *********************/
+
+static int particle_system_add_exec(bContext *C, wmOperator *op)
+{
+	Object *ob= CTX_data_pointer_get_type(C, "object", &RNA_Object).data;
+	Scene *scene = CTX_data_scene(C);
+
+	if(!scene || !ob)
+		return OPERATOR_CANCELLED;
+
+	object_add_particle_system(scene, ob);
+	WM_event_add_notifier(C, NC_OBJECT|ND_DRAW, ob);
+	
+	return OPERATOR_FINISHED;
+}
+
+void OBJECT_OT_particle_system_add(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Add Particle System Slot";
+	ot->idname= "OBJECT_OT_particle_system_add";
+	ot->description="Add a particle system.";
+	
+	/* api callbacks */
+	ot->exec= particle_system_add_exec;
+
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
+static int particle_system_remove_exec(bContext *C, wmOperator *op)
+{
+	Object *ob= CTX_data_pointer_get_type(C, "object", &RNA_Object).data;
+	Scene *scene = CTX_data_scene(C);
+
+	if(!scene || !ob)
+		return OPERATOR_CANCELLED;
+
+	object_remove_particle_system(scene, ob);
+	WM_event_add_notifier(C, NC_OBJECT|ND_DRAW, ob);
+	
+	return OPERATOR_FINISHED;
+}
+
+void OBJECT_OT_particle_system_remove(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Remove Particle System Slot";
+	ot->idname= "OBJECT_OT_particle_system_remove";
+	ot->description="Remove the selected particle system.";
+	
+	/* api callbacks */
+	ot->exec= particle_system_remove_exec;
+
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
+/********************** new particle settings operator *********************/
+
+static int psys_poll(bContext *C)
+{
+	PointerRNA ptr = CTX_data_pointer_get_type(C, "particle_system", &RNA_ParticleSystem);
+	return (ptr.data != NULL);
+}
+
+static int new_particle_settings_exec(bContext *C, wmOperator *op)
+{
+	Scene *scene = CTX_data_scene(C);
+	Main *bmain= CTX_data_main(C);
+	ParticleSystem *psys;
+	ParticleSettings *part = NULL;
+	Object *ob;
+	PointerRNA ptr;
+
+	ptr = CTX_data_pointer_get_type(C, "particle_system", &RNA_ParticleSystem);
+
+	psys = ptr.data;
+
+	/* add or copy particle setting */
+	if(psys->part)
+		part= psys_copy_settings(psys->part);
+	else
+		part= psys_new_settings("ParticleSettings", bmain);
+
+	ob= ptr.id.data;
+
+	if(psys->part)
+		psys->part->id.us--;
+
+	psys->part = part;
+
+	psys_check_boid_data(psys);
+
+	DAG_scene_sort(scene);
+	DAG_id_flush_update(&ob->id, OB_RECALC_DATA);
+
+	WM_event_add_notifier(C, NC_OBJECT|ND_DRAW, ob);
+	
+	return OPERATOR_FINISHED;
+}
+
+void PARTICLE_OT_new(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "New Particle Settings";
+	ot->idname= "PARTICLE_OT_new";
+	ot->description="Add new particle settings.";
+	
+	/* api callbacks */
+	ot->exec= new_particle_settings_exec;
+	ot->poll= psys_poll;
+
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
+/********************** keyed particle target operators *********************/
+
+static int new_particle_target_exec(bContext *C, wmOperator *op)
+{
+	Scene *scene = CTX_data_scene(C);
+	PointerRNA ptr = CTX_data_pointer_get_type(C, "particle_system", &RNA_ParticleSystem);
+	ParticleSystem *psys= ptr.data;
+	Object *ob = ptr.id.data;
+
+	ParticleTarget *pt;
+
+	if(!psys)
+		return OPERATOR_CANCELLED;
+
+	pt = psys->targets.first;
+	for(; pt; pt=pt->next)
+		pt->flag &= ~PTARGET_CURRENT;
+
+	pt = MEM_callocN(sizeof(ParticleTarget), "keyed particle target");
+
+	pt->flag |= PTARGET_CURRENT;
+	pt->psys = 1;
+
+	BLI_addtail(&psys->targets, pt);
+
+	DAG_scene_sort(scene);
+	DAG_id_flush_update(&ob->id, OB_RECALC_DATA);
+
+	WM_event_add_notifier(C, NC_OBJECT|ND_DRAW, ob);
+	
+	return OPERATOR_FINISHED;
+}
+
+void PARTICLE_OT_new_target(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "New Particle Target";
+	ot->idname= "PARTICLE_OT_new_target";
+	ot->description="Add a new particle target.";
+	
+	/* api callbacks */
+	ot->exec= new_particle_target_exec;
+
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
+static int remove_particle_target_exec(bContext *C, wmOperator *op)
+{
+	Scene *scene = CTX_data_scene(C);
+	PointerRNA ptr = CTX_data_pointer_get_type(C, "particle_system", &RNA_ParticleSystem);
+	ParticleSystem *psys= ptr.data;
+	Object *ob = ptr.id.data;
+
+	ParticleTarget *pt;
+
+	if(!psys)
+		return OPERATOR_CANCELLED;
+
+	pt = psys->targets.first;
+	for(; pt; pt=pt->next) {
+		if(pt->flag & PTARGET_CURRENT) {
+			BLI_remlink(&psys->targets, pt);
+			MEM_freeN(pt);
+			break;
+		}
+
+	}
+	pt = psys->targets.last;
+
+	if(pt)
+		pt->flag |= PTARGET_CURRENT;
+
+	DAG_scene_sort(scene);
+	DAG_id_flush_update(&ob->id, OB_RECALC_DATA);
+
+	WM_event_add_notifier(C, NC_OBJECT|ND_DRAW, ob);
+	
+	return OPERATOR_FINISHED;
+}
+
+void PARTICLE_OT_remove_target(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name= "Remove Particle Target";
+	ot->idname= "PARTICLE_OT_remove_target";
+	ot->description="Remove the selected particle target.";
+	
+	/* api callbacks */
+	ot->exec= remove_particle_target_exec;
+
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
+/************************ move up particle target operator *********************/
+
+static int target_move_up_exec(bContext *C, wmOperator *op)
+{
+	PointerRNA ptr = CTX_data_pointer_get_type(C, "particle_system", &RNA_ParticleSystem);
+	ParticleSystem *psys= ptr.data;
+	Object *ob = ptr.id.data;
+	ParticleTarget *pt;
+
+	if(!psys)
+		return OPERATOR_CANCELLED;
+	
+	pt = psys->targets.first;
+	for(; pt; pt=pt->next) {
+		if(pt->flag & PTARGET_CURRENT && pt->prev) {
+			BLI_remlink(&psys->targets, pt);
+			BLI_insertlink(&psys->targets, pt->prev->prev, pt);
+
+			DAG_id_flush_update(&ob->id, OB_RECALC_DATA);
+			WM_event_add_notifier(C, NC_OBJECT|ND_DRAW, ob);
+			break;
+		}
+	}
+	
+	return OPERATOR_FINISHED;
+}
+
+void PARTICLE_OT_target_move_up(wmOperatorType *ot)
+{
+	ot->name= "Move Up Target";
+	ot->idname= "PARTICLE_OT_target_move_up";
+	ot->description= "Move particle target up in the list.";
+	
+	ot->exec= target_move_up_exec;
+	
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
+/************************ move down particle target operator *********************/
+
+static int target_move_down_exec(bContext *C, wmOperator *op)
+{
+	PointerRNA ptr = CTX_data_pointer_get_type(C, "particle_system", &RNA_ParticleSystem);
+	ParticleSystem *psys= ptr.data;
+	Object *ob = ptr.id.data;
+	ParticleTarget *pt;
+
+	if(!psys)
+		return OPERATOR_CANCELLED;
+	pt = psys->targets.first;
+	for(; pt; pt=pt->next) {
+		if(pt->flag & PTARGET_CURRENT && pt->next) {
+			BLI_remlink(&psys->targets, pt);
+			BLI_insertlink(&psys->targets, pt->next, pt);
+
+			DAG_id_flush_update(&ob->id, OB_RECALC_DATA);
+			WM_event_add_notifier(C, NC_OBJECT|ND_DRAW, ob);
+			break;
+		}
+	}
+	
+	return OPERATOR_FINISHED;
+}
+
+void PARTICLE_OT_target_move_down(wmOperatorType *ot)
+{
+	ot->name= "Move Down Target";
+	ot->idname= "PARTICLE_OT_target_move_down";
+	ot->description= "Move particle target down in the list.";
+	
+	ot->exec= target_move_down_exec;
+	
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+}
+
+/************************ connect/disconnect hair operators *********************/
+
+static void disconnect_hair(Scene *scene, Object *ob, ParticleSystem *psys)
+{
+	ParticleSystemModifierData *psmd = psys_get_modifier(ob,psys);
+	ParticleData *pa;
+	PTCacheEdit *edit;
+	PTCacheEditPoint *point;
+	PTCacheEditKey *ekey = NULL;
+	HairKey *key;
+	int i, k;
+	float hairmat[4][4];
+
+	if(!ob || !psys || psys->flag & PSYS_GLOBAL_HAIR)
+		return;
+
+	if(!psys->part || psys->part->type != PART_HAIR)
+		return;
+	
+	edit = psys->edit;
+	point= edit ? edit->points : NULL;
+
+	for(i=0, pa=psys->particles; i<psys->totpart; i++,pa++) {
+		if(point) {
+			ekey = point->keys;
+			point++;
+		}
+
+		psys_mat_hair_to_global(ob, psmd->dm, psys->part->from, pa, hairmat);
+
+		for(k=0,key=pa->hair; k<pa->totkey; k++,key++) {
+			Mat4MulVecfl(hairmat,key->co);
+			
+			if(ekey) {
+				ekey->flag &= ~PEK_USE_WCO;
+				ekey++;
+			}
+		}
+	}
+
+	psys_free_path_cache(psys, psys->edit);
+
+	psys->flag |= PSYS_GLOBAL_HAIR;
+
+	PE_update_object(scene, ob, 0);
+}
+
+static int disconnect_hair_exec(bContext *C, wmOperator *op)
+{
+	Scene *scene= CTX_data_scene(C);
+	Object *ob= CTX_data_pointer_get_type(C, "object", &RNA_Object).data;
+	PointerRNA ptr = CTX_data_pointer_get_type(C, "particle_system", &RNA_ParticleSystem);
+	ParticleSystem *psys= NULL;
+	int all = RNA_boolean_get(op->ptr, "all");
+
+	if(!ob)
+		return OPERATOR_CANCELLED;
+
+	if(all) {
+		for(psys=ob->particlesystem.first; psys; psys=psys->next) {
+			disconnect_hair(scene, ob, psys);
+		}
+	}
+	else {
+		psys = ptr.data;
+		disconnect_hair(scene, ob, psys);
+	}
+
+	WM_event_add_notifier(C, NC_OBJECT|ND_DRAW, ob);
+
+	return OPERATOR_FINISHED;
+}
+
+void PARTICLE_OT_disconnect_hair(wmOperatorType *ot)
+{
+	ot->name= "Disconnect Hair";
+	ot->description= "Disconnect hair from the emitter mesh.";
+	ot->idname= "PARTICLE_OT_disconnect_hair";
+	
+	ot->exec= disconnect_hair_exec;
+	
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+
+	RNA_def_boolean(ot->srna, "all", 0, "All hair", "Disconnect all hair systems from the emitter mesh");
+}
+
+static void connect_hair(Scene *scene, Object *ob, ParticleSystem *psys)
+{
+	ParticleSystemModifierData *psmd = psys_get_modifier(ob,psys);
+	ParticleData *pa;
+	PTCacheEdit *edit;
+	PTCacheEditPoint *point;
+	PTCacheEditKey *ekey;
+	HairKey *key;
+	BVHTreeFromMesh bvhtree;
+	BVHTreeNearest nearest;
+	MFace *mface;
+	DerivedMesh *dm = NULL;
+	int numverts;
+	int i, k;
+	float hairmat[4][4], imat[4][4];
+	float v[4][3], vec[3];
+
+	if(!psys || !psys->part || psys->part->type != PART_HAIR)
+		return;
+	
+	edit= psys->edit;
+	point=  edit ? edit->points : NULL;
+	
+	if(psmd->dm->deformedOnly)
+		dm= psmd->dm;
+	else
+		dm= mesh_get_derived_deform(scene, ob, CD_MASK_BAREMESH);
+
+	numverts = dm->getNumVerts (dm);
+
+	memset( &bvhtree, 0, sizeof(bvhtree) );
+
+	/* convert to global coordinates */
+	for (i=0; i<numverts; i++)
+		Mat4MulVecfl (ob->obmat, CDDM_get_vert(dm, i)->co);
+
+	bvhtree_from_mesh_faces(&bvhtree, dm, 0.0, 2, 6);
+
+	for(i=0, pa= psys->particles; i<psys->totpart; i++,pa++) {
+		key = pa->hair;
+
+		nearest.index = -1;
+		nearest.dist = FLT_MAX;
+
+		BLI_bvhtree_find_nearest(bvhtree.tree, key->co, &nearest, bvhtree.nearest_callback, &bvhtree);
+
+		if(nearest.index == -1) {
+			printf("No nearest point found for hair root!");
+			continue;
+		}
+
+		mface = CDDM_get_face(dm,nearest.index);
+
+		VecCopyf(v[0], CDDM_get_vert(dm,mface->v1)->co);
+		VecCopyf(v[1], CDDM_get_vert(dm,mface->v2)->co);
+		VecCopyf(v[2], CDDM_get_vert(dm,mface->v3)->co);
+		if(mface->v4) {
+			VecCopyf(v[3], CDDM_get_vert(dm,mface->v4)->co);
+			MeanValueWeights(v, 4, nearest.co, pa->fuv);
+		}
+		else
+			MeanValueWeights(v, 3, nearest.co, pa->fuv);
+
+		pa->num = nearest.index;
+		pa->num_dmcache = psys_particle_dm_face_lookup(ob,psmd->dm,pa->num,pa->fuv,NULL);
+		
+		psys_mat_hair_to_global(ob, psmd->dm, psys->part->from, pa, hairmat);
+		Mat4Invert(imat,hairmat);
+
+		VECSUB(vec, nearest.co, key->co);
+
+		if(point) {
+			ekey = point->keys;
+			point++;
+		}
+
+		for(k=0,key=pa->hair; k<pa->totkey; k++,key++) {
+			VECADD(key->co, key->co, vec);
+			Mat4MulVecfl(imat,key->co);
+
+			if(ekey) {
+				ekey->flag |= PEK_USE_WCO;
+				ekey++;
+			}
+		}
+	}
+
+	free_bvhtree_from_mesh(&bvhtree);
+	if(!psmd->dm->deformedOnly)
+		dm->release(dm);
+
+	psys_free_path_cache(psys, psys->edit);
+
+	psys->flag &= ~PSYS_GLOBAL_HAIR;
+
+	PE_update_object(scene, ob, 0);
+}
+
+static int connect_hair_exec(bContext *C, wmOperator *op)
+{
+	Scene *scene= CTX_data_scene(C);
+	Object *ob= CTX_data_pointer_get_type(C, "object", &RNA_Object).data;
+	PointerRNA ptr = CTX_data_pointer_get_type(C, "particle_system", &RNA_ParticleSystem);
+	ParticleSystem *psys= NULL;
+	int all = RNA_boolean_get(op->ptr, "all");
+
+	if(!ob)
+		return OPERATOR_CANCELLED;
+
+	if(all) {
+		for(psys=ob->particlesystem.first; psys; psys=psys->next) {
+			connect_hair(scene, ob, psys);
+		}
+	}
+	else {
+		psys = ptr.data;
+		connect_hair(scene, ob, psys);
+	}
+
+	WM_event_add_notifier(C, NC_OBJECT|ND_DRAW, ob);
+
+	return OPERATOR_FINISHED;
+}
+
+void PARTICLE_OT_connect_hair(wmOperatorType *ot)
+{
+	ot->name= "Connect Hair";
+	ot->description= "Connect hair to the emitter mesh.";
+	ot->idname= "PARTICLE_OT_connect_hair";
+	
+	ot->exec= connect_hair_exec;
+	
+	/* flags */
+	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
+
+	RNA_def_boolean(ot->srna, "all", 0, "All hair", "Connect all hair systems to the emitter mesh");
+}
+