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/*
* Copyright 2011, 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.
*/
#ifndef __OSL_H__
#define __OSL_H__
#include "util_set.h"
#include "shader.h"
#ifdef WITH_OSL
#include <OSL/oslexec.h>
#endif
CCL_NAMESPACE_BEGIN
class Device;
class DeviceScene;
class ImageManager;
class OSLRenderServices;
class OSLGlobals;
class Scene;
class ShaderGraph;
class ShaderNode;
class ShaderOutput;
#ifdef WITH_OSL
/* Shader Manage */
class OSLShaderManager : public ShaderManager {
public:
OSLShaderManager();
~OSLShaderManager();
void device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress);
void device_free(Device *device, DeviceScene *dscene);
private:
OSL::ShadingSystem *ss;
OSL::TextureSystem *ts;
OSLRenderServices *services;
OSL::ErrorHandler errhandler;
};
#endif
/* Graph Compiler */
class OSLCompiler {
public:
OSLCompiler(void *shadingsys);
void compile(OSLGlobals *og, Shader *shader);
void add(ShaderNode *node, const char *name);
void parameter(const char *name, float f);
void parameter_color(const char *name, float3 f);
void parameter_vector(const char *name, float3 f);
void parameter_normal(const char *name, float3 f);
void parameter_point(const char *name, float3 f);
void parameter(const char *name, int f);
void parameter(const char *name, const char *s);
void parameter(const char *name, ustring str);
void parameter(const char *name, const Transform& tfm);
ShaderType output_type() { return current_type; }
bool background;
private:
string id(ShaderNode *node);
void compile_type(Shader *shader, ShaderGraph *graph, ShaderType type);
bool node_skip_input(ShaderNode *node, ShaderInput *input);
string compatible_name(const char *name);
void find_dependencies(set<ShaderNode*>& dependencies, ShaderInput *input);
void generate_nodes(const set<ShaderNode*>& nodes);
void *shadingsys;
ShaderType current_type;
Shader *current_shader;
};
CCL_NAMESPACE_END
#endif /* __OSL_H__ */
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