Remove Blender Internal and legacy viewport from Blender 2.8.

Brecht authored this commit, but he gave me the honours to actually
do it. Here it goes; Blender Internal. Bye bye, you did great!

* Point density, voxel data, ocean, environment map textures were removed,
  as these only worked within BI rendering. Note that the ocean modifier
  and the Cycles point density shader node continue to work.
* Dynamic paint using material shading was removed, as this only worked
  with BI. If we ever wanted to support this again probably it should go
  through the baking API.
* GPU shader export through the Python API was removed. This only worked
  for the old BI GLSL shaders, which no longer exists. Doing something
  similar for Eevee would be significantly more complicated because it
  uses a lot of multiplass rendering and logic outside the shader, it's
  probably impractical.
* Collada material import / export code is mostly gone, as it only worked
  for BI materials. We need to add Cycles / Eevee material support at some
  point.
* The mesh noise operator was removed since it only worked with BI
  material texture slots. A displacement modifier can be used instead.
* The delete texture paint slot operator was removed since it only worked
  for BI material texture slots. Could be added back with node support.

* Not all legacy viewport features are supported in the new viewport, but
  their code was removed. If we need to bring anything back we can look at
  older git revisions.
* There is some legacy viewport code that I could not remove yet, and some
  that I probably missed.
* Shader node execution code was left mostly intact, even though it is not
  used anywhere now. We may eventually use this to replace the texture
  nodes with Cycles / Eevee shader nodes.

* The Cycles Bake panel now includes settings for baking multires normal
  and displacement maps. The underlying code needs to be merged properly,
  and we plan to add back support for multires AO baking and add support
  to Cycles baking for features like vertex color, displacement, and other
  missing baking features.

* This commit removes DNA and the Python API for BI material, lamp, world
  and scene settings. This breaks a lot of addons.
* There is more DNA that can be removed or renamed, where Cycles or Eevee
  are reusing some old BI properties but the names are not really correct
  anymore.
* Texture slots for materials, lamps and world were removed. They remain
  for brushes, particles and freestyle linestyles.
* 'BLENDER_RENDER' remains in the COMPAT_ENGINES of UI panels. Cycles and
  other renderers use this to find all panels to show, minus a few panels
  that they have their own replacement for.

1 files changed, 0 insertions, 439 deletions

diff --git a/source/blender/blenkernel/intern/texture.c b/source/blender/blenkernel/intern/texture.c
index 250408642bb..2bf2fa7807b 100644
--- a/source/blender/blenkernel/intern/texture.c
+++ b/source/blender/blenkernel/intern/texture.c
@@ -44,9 +44,7 @@
 
 #include "DNA_key_types.h"
 #include "DNA_object_types.h"
-#include "DNA_lamp_types.h"
 #include "DNA_material_types.h"
-#include "DNA_world_types.h"
 #include "DNA_brush_types.h"
 #include "DNA_node_types.h"
 #include "DNA_color_types.h"
@@ -213,22 +211,6 @@ void BKE_texture_free(Tex *tex)
 	}
 
 	MEM_SAFE_FREE(tex->coba);
-	if (tex->env) {
-		BKE_texture_envmap_free(tex->env);
-		tex->env = NULL;
-	}
-	if (tex->pd) {
-		BKE_texture_pointdensity_free(tex->pd);
-		tex->pd = NULL;
-	}
-	if (tex->vd) {
-		BKE_texture_voxeldata_free(tex->vd);
-		tex->vd = NULL;
-	}
-	if (tex->ot) {
-		BKE_texture_ocean_free(tex->ot);
-		tex->ot = NULL;
-	}
 	
 	BKE_icon_id_delete((ID *)tex);
 	BKE_previewimg_free(&tex->preview);
@@ -285,30 +267,6 @@ void BKE_texture_default(Tex *tex)
 	tex->vn_distm = 0;
 	tex->vn_coltype = 0;
 
-	if (tex->env) {
-		tex->env->stype = ENV_ANIM;
-		tex->env->clipsta = 0.1;
-		tex->env->clipend = 100;
-		tex->env->cuberes = 512;
-		tex->env->depth = 0;
-	}
-
-	if (tex->pd) {
-		tex->pd->radius = 0.3f;
-		tex->pd->falloff_type = TEX_PD_FALLOFF_STD;
-	}
-	
-	if (tex->vd) {
-		tex->vd->resol[0] = tex->vd->resol[1] = tex->vd->resol[2] = 0;
-		tex->vd->interp_type = TEX_VD_LINEAR;
-		tex->vd->file_format = TEX_VD_SMOKE;
-	}
-	
-	if (tex->ot) {
-		tex->ot->output = TEX_OCN_DISPLACEMENT;
-		tex->ot->object = NULL;
-	}
-	
 	tex->iuser.fie_ima = 2;
 	tex->iuser.ok = 1;
 	tex->iuser.frames = 100;
@@ -319,26 +277,6 @@ void BKE_texture_default(Tex *tex)
 
 void BKE_texture_type_set(Tex *tex, int type)
 {
-	switch (type) {
-			
-		case TEX_VOXELDATA:
-			if (tex->vd == NULL)
-				tex->vd = BKE_texture_voxeldata_add();
-			break;
-		case TEX_POINTDENSITY:
-			if (tex->pd == NULL)
-				tex->pd = BKE_texture_pointdensity_add();
-			break;
-		case TEX_ENVMAP:
-			if (tex->env == NULL)
-				tex->env = BKE_texture_envmap_add();
-			break;
-		case TEX_OCEAN:
-			if (tex->ot == NULL)
-				tex->ot = BKE_texture_ocean_add();
-			break;
-	}
-	
 	tex->type = type;
 }
 
@@ -476,10 +414,6 @@ MTex *BKE_texture_mtex_add_id(ID *id, int slot)
 		MEM_freeN(mtex_ar[slot]);
 		mtex_ar[slot] = NULL;
 	}
-	else if (GS(id->name) == ID_MA) {
-		/* Reset this slot's ON/OFF toggle, for materials, when slot was empty. */
-		((Material *)id)->septex &= ~(1 << slot);
-	}
 
 	mtex_ar[slot] = BKE_texture_mtex_add();
 
@@ -498,9 +432,6 @@ MTex *BKE_texture_mtex_add_id(ID *id, int slot)
  */
 void BKE_texture_copy_data(Main *bmain, Tex *tex_dst, const Tex *tex_src, const int flag)
 {
-	/* We never handle usercount here for own data. */
-	const int flag_subdata = flag | LIB_ID_CREATE_NO_USER_REFCOUNT;
-
 	if (!BKE_texture_is_image_user(tex_src)) {
 		tex_dst->ima = NULL;
 	}
@@ -508,19 +439,6 @@ void BKE_texture_copy_data(Main *bmain, Tex *tex_dst, const Tex *tex_src, const
 	if (tex_dst->coba) {
 		tex_dst->coba = MEM_dupallocN(tex_dst->coba);
 	}
-	if (tex_dst->env) {
-		tex_dst->env = BKE_texture_envmap_copy(tex_dst->env, flag_subdata);
-	}
-	if (tex_dst->pd) {
-		tex_dst->pd = BKE_texture_pointdensity_copy(tex_dst->pd, flag_subdata);
-	}
-	if (tex_dst->vd) {
-		tex_dst->vd = MEM_dupallocN(tex_dst->vd);
-	}
-	if (tex_dst->ot) {
-		tex_dst->ot = BKE_texture_ocean_copy(tex_dst->ot, flag_subdata);
-	}
-
 	if (tex_src->nodetree) {
 		if (tex_src->nodetree->execdata) {
 			ntreeTexEndExecTree(tex_src->nodetree->execdata);
@@ -562,19 +480,6 @@ Tex *BKE_texture_localize(Tex *tex)
 	/* image texture: BKE_texture_free also doesn't decrease */
 	
 	if (texn->coba) texn->coba = MEM_dupallocN(texn->coba);
-	if (texn->env) {
-		texn->env = BKE_texture_envmap_copy(texn->env, LIB_ID_CREATE_NO_USER_REFCOUNT);
-		id_us_min(&texn->env->ima->id);
-	}
-	if (texn->pd) texn->pd = BKE_texture_pointdensity_copy(texn->pd, LIB_ID_CREATE_NO_USER_REFCOUNT);
-	if (texn->vd) {
-		texn->vd = MEM_dupallocN(texn->vd);
-		if (texn->vd->dataset)
-			texn->vd->dataset = MEM_dupallocN(texn->vd->dataset);
-	}
-	if (texn->ot) {
-		texn->ot = BKE_texture_ocean_copy(tex->ot, LIB_ID_CREATE_NO_USER_REFCOUNT);
-	}
 	
 	texn->preview = NULL;
 	
@@ -593,64 +498,6 @@ void BKE_texture_make_local(Main *bmain, Tex *tex, const bool lib_local)
 	BKE_id_make_local_generic(bmain, &tex->id, true, lib_local);
 }
 
-Tex *give_current_object_texture(Object *ob)
-{
-	Material *ma, *node_ma;
-	Tex *tex = NULL;
-	
-	if (ob == NULL) return NULL;
-	if (ob->totcol == 0 && !(ob->type == OB_LAMP)) return NULL;
-	
-	if (ob->type == OB_LAMP) {
-		tex = give_current_lamp_texture(ob->data);
-	}
-	else {
-		ma = give_current_material(ob, ob->actcol);
-
-		if ((node_ma = give_node_material(ma)))
-			ma = node_ma;
-
-		tex = give_current_material_texture(ma);
-	}
-	
-	return tex;
-}
-
-Tex *give_current_lamp_texture(Lamp *la)
-{
-	MTex *mtex = NULL;
-	Tex *tex = NULL;
-
-	if (la) {
-		mtex = la->mtex[(int)(la->texact)];
-		if (mtex) tex = mtex->tex;
-	}
-
-	return tex;
-}
-
-void set_current_lamp_texture(Lamp *la, Tex *newtex)
-{
-	int act = la->texact;
-
-	if (la->mtex[act] && la->mtex[act]->tex)
-		id_us_min(&la->mtex[act]->tex->id);
-
-	if (newtex) {
-		if (!la->mtex[act]) {
-			la->mtex[act] = BKE_texture_mtex_add();
-			la->mtex[act]->texco = TEXCO_GLOB;
-		}
-		
-		la->mtex[act]->tex = newtex;
-		id_us_plus(&newtex->id);
-	}
-	else if (la->mtex[act]) {
-		MEM_freeN(la->mtex[act]);
-		la->mtex[act] = NULL;
-	}
-}
-
 Tex *give_current_linestyle_texture(FreestyleLineStyle *linestyle)
 {
 	MTex *mtex = NULL;
@@ -686,55 +533,9 @@ void set_current_linestyle_texture(FreestyleLineStyle *linestyle, Tex *newtex)
 	}
 }
 
-bNode *give_current_material_texture_node(Material *ma)
-{
-	if (ma && ma->use_nodes && ma->nodetree)
-		return nodeGetActiveID(ma->nodetree, ID_TE);
-	
-	return NULL;
-}
-
-Tex *give_current_material_texture(Material *ma)
-{
-	MTex *mtex = NULL;
-	Tex *tex = NULL;
-	bNode *node;
-	
-	if (ma && ma->use_nodes && ma->nodetree) {
-		/* first check texture, then material, this works together
-		 * with a hack that clears the active ID flag for textures on
-		 * making a material node active */
-		node = nodeGetActiveID(ma->nodetree, ID_TE);
-
-		if (node) {
-			tex = (Tex *)node->id;
-			ma = NULL;
-		}
-	}
-
-	if (ma) {
-		mtex = ma->mtex[(int)(ma->texact)];
-		if (mtex) tex = mtex->tex;
-	}
-	
-	return tex;
-}
-
 bool give_active_mtex(ID *id, MTex ***mtex_ar, short *act)
 {
 	switch (GS(id->name)) {
-		case ID_MA:
-			*mtex_ar =       ((Material *)id)->mtex;
-			if (act) *act =  (((Material *)id)->texact);
-			break;
-		case ID_WO:
-			*mtex_ar =       ((World *)id)->mtex;
-			if (act) *act =  (((World *)id)->texact);
-			break;
-		case ID_LA:
-			*mtex_ar =       ((Lamp *)id)->mtex;
-			if (act) *act =  (((Lamp *)id)->texact);
-			break;
 		case ID_LS:
 			*mtex_ar =       ((FreestyleLineStyle *)id)->mtex;
 			if (act) *act =  (((FreestyleLineStyle *)id)->texact);
@@ -758,15 +559,6 @@ void set_active_mtex(ID *id, short act)
 	else if (act >= MAX_MTEX) act = MAX_MTEX - 1;
 
 	switch (GS(id->name)) {
-		case ID_MA:
-			((Material *)id)->texact = act;
-			break;
-		case ID_WO:
-			((World *)id)->texact = act;
-			break;
-		case ID_LA:
-			((Lamp *)id)->texact = act;
-			break;
 		case ID_LS:
 			((FreestyleLineStyle *)id)->texact = act;
 			break;
@@ -778,100 +570,6 @@ void set_active_mtex(ID *id, short act)
 	}
 }
 
-void set_current_material_texture(Material *ma, Tex *newtex)
-{
-	Tex *tex = NULL;
-	bNode *node;
-
-	if ((ma->use_nodes && ma->nodetree) &&
-	    (node = nodeGetActiveID(ma->nodetree, ID_TE)))
-	{
-		tex = (Tex *)node->id;
-		id_us_min(&tex->id);
-		if (newtex) {
-			node->id = &newtex->id;
-			id_us_plus(&newtex->id);
-		}
-		else {
-			node->id = NULL;
-		}
-	}
-	else {
-		int act = (int)ma->texact;
-
-		tex = (ma->mtex[act]) ? ma->mtex[act]->tex : NULL;
-		id_us_min(&tex->id);
-
-		if (newtex) {
-			if (!ma->mtex[act]) {
-				ma->mtex[act] = BKE_texture_mtex_add();
-				/* Reset this slot's ON/OFF toggle, for materials, when slot was empty. */
-				ma->septex &= ~(1 << act);
-				/* For volumes the default UV texture coordinates are not available. */
-				if (ma->material_type == MA_TYPE_VOLUME) {
-					ma->mtex[act]->texco = TEXCO_ORCO;
-				}
-			}
-			
-			ma->mtex[act]->tex = newtex;
-			id_us_plus(&newtex->id);
-		}
-		else if (ma->mtex[act]) {
-			MEM_freeN(ma->mtex[act]);
-			ma->mtex[act] = NULL;
-		}
-	}
-}
-
-bool has_current_material_texture(Material *ma)
-{
-	bNode *node;
-
-	if (ma && ma->use_nodes && ma->nodetree) {
-		node = nodeGetActiveID(ma->nodetree, ID_TE);
-
-		if (node)
-			return true;
-	}
-
-	return (ma != NULL);
-}
-
-Tex *give_current_world_texture(World *world)
-{
-	MTex *mtex = NULL;
-	Tex *tex = NULL;
-	
-	if (!world) return NULL;
-	
-	mtex = world->mtex[(int)(world->texact)];
-	if (mtex) tex = mtex->tex;
-	
-	return tex;
-}
-
-void set_current_world_texture(World *wo, Tex *newtex)
-{
-	int act = wo->texact;
-
-	if (wo->mtex[act] && wo->mtex[act]->tex)
-		id_us_min(&wo->mtex[act]->tex->id);
-
-	if (newtex) {
-		if (!wo->mtex[act]) {
-			wo->mtex[act] = BKE_texture_mtex_add();
-			wo->mtex[act]->texco = TEXCO_VIEW;
-		}
-		
-		wo->mtex[act]->tex = newtex;
-		id_us_plus(&newtex->id);
-	}
-	else if (wo->mtex[act]) {
-		MEM_freeN(wo->mtex[act]);
-		wo->mtex[act] = NULL;
-	}
-}
-
 Tex *give_current_brush_texture(Brush *br)
 {
 	return br->mtex.tex;
@@ -926,65 +624,6 @@ void set_current_particle_texture(ParticleSettings *part, Tex *newtex)
 
 /* ------------------------------------------------------------------------- */
 
-EnvMap *BKE_texture_envmap_add(void)
-{
-	EnvMap *env;
-	
-	env = MEM_callocN(sizeof(EnvMap), "envmap");
-	env->type = ENV_CUBE;
-	env->stype = ENV_ANIM;
-	env->clipsta = 0.1;
-	env->clipend = 100.0;
-	env->cuberes = 512;
-	env->viewscale = 0.5;
-	
-	return env;
-} 
-
-/* ------------------------------------------------------------------------- */
-
-EnvMap *BKE_texture_envmap_copy(const EnvMap *env, const int flag)
-{
-	EnvMap *envn;
-	int a;
-	
-	envn = MEM_dupallocN(env);
-	envn->ok = 0;
-	for (a = 0; a < 6; a++) {
-		envn->cube[a] = NULL;
-	}
-	if ((flag & LIB_ID_CREATE_NO_USER_REFCOUNT) == 0) {
-		id_us_plus((ID *)envn->ima);
-	}
-
-	return envn;
-}
-
-/* ------------------------------------------------------------------------- */
-
-void BKE_texture_envmap_free_data(EnvMap *env)
-{
-	unsigned int part;
-	
-	for (part = 0; part < 6; part++) {
-		if (env->cube[part])
-			IMB_freeImBuf(env->cube[part]);
-		env->cube[part] = NULL;
-	}
-	env->ok = 0;
-}
-
-/* ------------------------------------------------------------------------- */
-
-void BKE_texture_envmap_free(EnvMap *env)
-{
-	
-	BKE_texture_envmap_free_data(env);
-	MEM_freeN(env);
-	
-}
-
-/* ------------------------------------------------------------------------- */
 
 void BKE_texture_pointdensity_init_data(PointDensity *pd)
 {
@@ -1057,77 +696,8 @@ void BKE_texture_pointdensity_free(PointDensity *pd)
 	BKE_texture_pointdensity_free_data(pd);
 	MEM_freeN(pd);
 }
-
 /* ------------------------------------------------------------------------- */
 
-void BKE_texture_voxeldata_free_data(VoxelData *vd)
-{
-	if (vd->dataset) {
-		MEM_freeN(vd->dataset);
-		vd->dataset = NULL;
-	}
-
-}
- 
-void BKE_texture_voxeldata_free(VoxelData *vd)
-{
-	BKE_texture_voxeldata_free_data(vd);
-	MEM_freeN(vd);
-}
- 
-VoxelData *BKE_texture_voxeldata_add(void)
-{
-	VoxelData *vd;
-
-	vd = MEM_callocN(sizeof(VoxelData), "voxeldata");
-	vd->dataset = NULL;
-	vd->resol[0] = vd->resol[1] = vd->resol[2] = 1;
-	vd->interp_type = TEX_VD_LINEAR;
-	vd->file_format = TEX_VD_SMOKE;
-	vd->int_multiplier = 1.0;
-	vd->extend = TEX_CLIP;
-	vd->object = NULL;
-	vd->cachedframe = -1;
-	vd->ok = 0;
-	
-	return vd;
-}
- 
-VoxelData *BKE_texture_voxeldata_copy(VoxelData *vd)
-{
-	VoxelData *vdn;
-
-	vdn = MEM_dupallocN(vd);
-	vdn->dataset = NULL;
-
-	return vdn;
-}
-
-/* ------------------------------------------------------------------------- */
-
-OceanTex *BKE_texture_ocean_add(void)
-{
-	OceanTex *ot;
-	
-	ot = MEM_callocN(sizeof(struct OceanTex), "ocean texture");
-	ot->output = TEX_OCN_DISPLACEMENT;
-	ot->object = NULL;
-	
-	return ot;
-}
-
-OceanTex *BKE_texture_ocean_copy(const OceanTex *ot, const int UNUSED(flag))
-{
-	OceanTex *otn = MEM_dupallocN(ot);
-	
-	return otn;
-}
-
-void BKE_texture_ocean_free(struct OceanTex *ot)
-{
-	MEM_freeN(ot);
-}
-
 /**
  * \returns true if this texture can use its #Texture.ima (even if its NULL)
  */
@@ -1138,15 +708,6 @@ bool BKE_texture_is_image_user(const struct Tex *tex)
 		{
 			return true;
 		}
-		case TEX_ENVMAP:
-		{
-			if (tex->env) {
-				if (tex->env->stype == ENV_LOAD) {
-					return true;
-				}
-			}
-			break;
-		}
 	}
 
 	return false;