1 files changed, 199 insertions, 0 deletions
diff --git a/source/blender/draw/modes/pose_mode.c b/source/blender/draw/modes/pose_mode.c
new file mode 100644
index 00000000000..560773f2d05
--- /dev/null
+++ b/source/blender/draw/modes/pose_mode.c
@@ -0,0 +1,199 @@
+/*
+ * Copyright 2016, Blender Foundation.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributor(s): Blender Institute
+ *
+ */
+
+/** \file blender/draw/modes/pose_mode.c
+ *  \ingroup draw
+ */
+
+#include "DRW_engine.h"
+#include "DRW_render.h"
+
+/* If builtin shaders are needed */
+#include "GPU_shader.h"
+
+#include "draw_common.h"
+
+#include "draw_mode_engines.h"
+
+extern GlobalsUboStorage ts;
+
+/* *********** LISTS *********** */
+/* All lists are per viewport specific datas.
+ * They are all free when viewport changes engines
+ * or is free itself. Use POSE_engine_init() to
+ * initialize most of them and POSE_cache_init()
+ * for POSE_PassList */
+
+typedef struct POSE_PassList {
+	struct DRWPass *bone_solid;
+	struct DRWPass *bone_wire;
+	struct DRWPass *bone_envelope;
+	struct DRWPass *relationship;
+} POSE_PassList;
+
+typedef struct POSE_StorageList {
+	struct POSE_PrivateData *g_data;
+} POSE_StorageList;
+
+typedef struct POSE_Data {
+	void *engine_type;
+	DRWViewportEmptyList *fbl;
+	DRWViewportEmptyList *txl;
+	POSE_PassList *psl;
+	POSE_StorageList *stl;
+} POSE_Data;
+
+/* *********** STATIC *********** */
+
+typedef struct POSE_PrivateData {
+	DRWShadingGroup *relationship_lines;
+} POSE_PrivateData; /* Transient data */
+
+/* *********** FUNCTIONS *********** */
+
+/* Here init all passes and shading groups
+ * Assume that all Passes are NULL */
+static void POSE_cache_init(void *vedata)
+{
+	POSE_PassList *psl = ((POSE_Data *)vedata)->psl;
+	POSE_StorageList *stl = ((POSE_Data *)vedata)->stl;
+
+	if (!stl->g_data) {
+		/* Alloc transient pointers */
+		stl->g_data = MEM_mallocN(sizeof(*stl->g_data), __func__);
+	}
+
+	{
+		/* Solid bones */
+		DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS;
+		psl->bone_solid = DRW_pass_create("Bone Solid Pass", state);
+	}
+
+	{
+		/* Wire bones */
+		DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS | DRW_STATE_BLEND;
+		psl->bone_wire = DRW_pass_create("Bone Wire Pass", state);
+	}
+
+	{
+		/* distance outline around envelope bones */
+		DRWState state = DRW_STATE_ADDITIVE | DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_LESS | DRW_STATE_BLEND;
+		psl->bone_envelope = DRW_pass_create("Bone Envelope Outline Pass", state);
+	}
+
+	{
+		/* Non Meshes Pass (Camera, empties, lamps ...) */
+		DRWState state =
+		        DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS |
+		        DRW_STATE_BLEND | DRW_STATE_WIRE;
+		psl->relationship = DRW_pass_create("Bone Relationship Pass", state);
+
+		/* Relationship Lines */
+		stl->g_data->relationship_lines = shgroup_dynlines_uniform_color(psl->relationship, ts.colorWire);
+		DRW_shgroup_state_enable(stl->g_data->relationship_lines, DRW_STATE_STIPPLE_3);
+	}
+}
+
+/* Add geometry to shadingGroups. Execute for each objects */
+static void POSE_cache_populate(void *vedata, Object *ob)
+{
+	POSE_PassList *psl = ((POSE_Data *)vedata)->psl;
+	POSE_StorageList *stl = ((POSE_Data *)vedata)->stl;
+	const DRWContextState *draw_ctx = DRW_context_state_get();
+
+	/* In the future this will allow us to implement face manipulators,
+	 * and similar functionalities. For now we handle only pose bones. */
+
+	if (ob->type == OB_ARMATURE) {
+		if (DRW_pose_mode_armature(ob, draw_ctx->obact)) {
+			DRW_shgroup_armature_pose(
+			        ob, psl->bone_solid, psl->bone_wire, psl->bone_envelope,
+			        stl->g_data->relationship_lines);
+		}
+	}
+}
+
+/**
+ * Return true if armature should be handled by the pose mode engine.
+ */
+bool DRW_pose_mode_armature(Object *ob, Object *active_ob)
+{
+	/* Pode armature is handled by pose mode engine. */
+	if ((ob == active_ob) && ((ob->mode & OB_MODE_POSE) != 0)) {
+		return true;
+	}
+
+	/* Armature parent is also handled by pose mode engine. */
+	if ((active_ob != NULL) && ((active_ob->mode & OB_MODE_WEIGHT_PAINT) != 0)) {
+		if (active_ob->parent == ob) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
+/* Draw time ! Control rendering pipeline from here */
+static void POSE_draw_scene(void *vedata)
+{
+	POSE_PassList *psl = ((POSE_Data *)vedata)->psl;
+
+	DRW_draw_pass(psl->bone_envelope);
+	DRW_draw_pass(psl->bone_wire);
+	DRW_draw_pass(psl->bone_solid);
+	DRW_draw_pass(psl->relationship);
+}
+
+/* Create collection settings here.
+ *
+ * Be sure to add this function there :
+ * source/blender/draw/DRW_engine.h
+ * source/blender/blenkernel/intern/layer.c
+ * source/blenderplayer/bad_level_call_stubs/stubs.c
+ *
+ * And relevant collection settings to :
+ * source/blender/makesrna/intern/rna_scene.c
+ * source/blender/blenkernel/intern/layer.c
+ */
+#if 0
+void POSE_collection_settings_create(CollectionEngineSettings *ces)
+{
+	BLI_assert(ces);
+	// BKE_collection_engine_property_add_int(ces, "foo", 37);
+}
+#endif
+
+static const DrawEngineDataSize POSE_data_size = DRW_VIEWPORT_DATA_SIZE(POSE_Data);
+
+DrawEngineType draw_engine_pose_type = {
+	NULL, NULL,
+	N_("PoseMode"),
+	&POSE_data_size,
+	NULL,
+	NULL,
+	&POSE_cache_init,
+	&POSE_cache_populate,
+	NULL,
+	NULL,
+	&POSE_draw_scene,
+	NULL,
+	NULL,
+};