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/*
Minetest-c55
Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>

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.
*/

#ifndef MESH_HEADER
#define MESH_HEADER

#include "common_irrlicht.h"
#include <string>

/*
	Create a new cube mesh.
	Vertices are at (+-scale.X/2, +-scale.Y/2, +-scale.Z/2).

	The resulting mesh has 6 materials (up, down, right, left, back, front)
	which must be defined by the caller.
*/
scene::IAnimatedMesh* createCubeMesh(v3f scale);

/*
	Create a new extruded mesh from a texture.
	Maximum bounding box is (+-scale.X/2, +-scale.Y/2, +-scale.Z).
	Thickness is in Z direction.

	The resulting mesh has 1 material which must be defined by the caller.
*/
scene::IAnimatedMesh* createExtrudedMesh(video::ITexture *texture,
		video::IVideoDriver *driver, v3f scale);

/*
	Multiplies each vertex coordinate by the specified scaling factors
	(componentwise vector multiplication).
*/
void scaleMesh(scene::IMesh *mesh, v3f scale);

/*
	Translate each vertex coordinate by the specified vector.
*/
void translateMesh(scene::IMesh *mesh, v3f vec);

/*
	Set a constant color for all vertices in the mesh
*/
void setMeshColor(scene::IMesh *mesh, const video::SColor &color);

/*
	Set the color of all vertices in the mesh.
	For each vertex, determine the largest absolute entry in
	the normal vector, and choose one of colorX, colorY or
	colorZ accordingly.
*/
void setMeshColorByNormalXYZ(scene::IMesh *mesh,
		const video::SColor &colorX,
		const video::SColor &colorY,
		const video::SColor &colorZ);

/*
	Render a mesh to a texture.
	Returns NULL if render-to-texture failed.
*/
video::ITexture *generateTextureFromMesh(scene::IMesh *mesh,
		IrrlichtDevice *device,
		core::dimension2d<u32> dim,
		std::string texture_name,
		v3f camera_position,
		v3f camera_lookat,
		core::CMatrix4<f32> camera_projection_matrix,
		video::SColorf ambient_light,
		v3f light_position,
		video::SColorf light_color,
		f32 light_radius);

#endif
l opt">->ci = L1->base_ci; L1->size_ci = BASIC_CI_SIZE; L1->end_ci = L1->base_ci + L1->size_ci - 1; /* initialize stack array */ L1->stack = luaM_newvector(L, BASIC_STACK_SIZE + EXTRA_STACK, TValue); L1->stacksize = BASIC_STACK_SIZE + EXTRA_STACK; L1->top = L1->stack; L1->stack_last = L1->stack+(L1->stacksize - EXTRA_STACK)-1; /* initialize first ci */ L1->ci->func = L1->top; setnilvalue(L1->top++); /* `function' entry for this `ci' */ L1->base = L1->ci->base = L1->top; L1->ci->top = L1->top + LUA_MINSTACK; } static void freestack (lua_State *L, lua_State *L1) { luaM_freearray(L, L1->base_ci, L1->size_ci, CallInfo); luaM_freearray(L, L1->stack, L1->stacksize, TValue); } /* ** open parts that may cause memory-allocation errors */ static void f_luaopen (lua_State *L, void *ud) { global_State *g = G(L); UNUSED(ud); stack_init(L, L); /* init stack */ sethvalue(L, gt(L), luaH_new(L, 0, 2)); /* table of globals */ sethvalue(L, registry(L), luaH_new(L, 0, 2)); /* registry */ luaS_resize(L, MINSTRTABSIZE); /* initial size of string table */ luaT_init(L); luaX_init(L); luaS_fix(luaS_newliteral(L, MEMERRMSG)); g->GCthreshold = 4*g->totalbytes; } static void preinit_state (lua_State *L, global_State *g) { G(L) = g; L->stack = NULL; L->stacksize = 0; L->errorJmp = NULL; L->hook = NULL; L->hookmask = 0; L->basehookcount = 0; L->allowhook = 1; resethookcount(L); L->openupval = NULL; L->size_ci = 0; L->nCcalls = L->baseCcalls = 0; L->status = 0; L->base_ci = L->ci = NULL; L->savedpc = NULL; L->errfunc = 0; setnilvalue(gt(L)); } static void close_state (lua_State *L) { global_State *g = G(L); luaF_close(L, L->stack); /* close all upvalues for this thread */ luaC_freeall(L); /* collect all objects */ lua_assert(g->rootgc == obj2gco(L)); lua_assert(g->strt.nuse == 0); luaM_freearray(L, G(L)->strt.hash, G(L)->strt.size, TString *); luaZ_freebuffer(L, &g->buff); freestack(L, L); lua_assert(g->totalbytes == sizeof(LG)); (*g->frealloc)(g->ud, fromstate(L), state_size(LG), 0); } lua_State *luaE_newthread (lua_State *L) { lua_State *L1 = tostate(luaM_malloc(L, state_size(lua_State))); luaC_link(L, obj2gco(L1), LUA_TTHREAD); preinit_state(L1, G(L)); stack_init(L1, L); /* init stack */ setobj2n(L, gt(L1), gt(L)); /* share table of globals */ L1->hookmask = L->hookmask; L1->basehookcount = L->basehookcount; L1->hook = L->hook; resethookcount(L1); lua_assert(iswhite(obj2gco(L1))); return L1; } void luaE_freethread (lua_State *L, lua_State *L1) { luaF_close(L1, L1->stack); /* close all upvalues for this thread */ lua_assert(L1->openupval == NULL); luai_userstatefree(L1); freestack(L, L1); luaM_freemem(L, fromstate(L1), state_size(lua_State)); } LUA_API lua_State *lua_newstate (lua_Alloc f, void *ud) { int i; lua_State *L; global_State *g; void *l = (*f)(ud, NULL, 0, state_size(LG)); if (l == NULL) return NULL; L = tostate(l); g = &((LG *)L)->g; L->next = NULL; L->tt = LUA_TTHREAD; g->currentwhite = bit2mask(WHITE0BIT, FIXEDBIT); L->marked = luaC_white(g); set2bits(L->marked, FIXEDBIT, SFIXEDBIT); preinit_state(L, g); g->frealloc = f; g->ud = ud; g->mainthread = L; g->uvhead.u.l.prev = &g->uvhead; g->uvhead.u.l.next = &g->uvhead; g->GCthreshold = 0; /* mark it as unfinished state */ g->strt.size = 0; g->strt.nuse = 0; g->strt.hash = NULL; setnilvalue(registry(L)); luaZ_initbuffer(L, &g->buff); g->panic = NULL; g->gcstate = GCSpause; g->rootgc = obj2gco(L); g->sweepstrgc = 0;