forked from bartvdbraak/blender
144 lines
3.9 KiB
C++
144 lines
3.9 KiB
C++
/*
|
|
* 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 __SVM_H__
|
|
#define __SVM_H__
|
|
|
|
#include "attribute.h"
|
|
#include "graph.h"
|
|
#include "shader.h"
|
|
|
|
#include "util_set.h"
|
|
#include "util_string.h"
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
class Device;
|
|
class DeviceScene;
|
|
class ImageManager;
|
|
struct KernelSunSky;
|
|
class Scene;
|
|
class ShaderGraph;
|
|
class ShaderInput;
|
|
class ShaderNode;
|
|
class ShaderOutput;
|
|
|
|
/* Shader Manager */
|
|
|
|
class SVMShaderManager : public ShaderManager {
|
|
public:
|
|
SVMShaderManager();
|
|
~SVMShaderManager();
|
|
|
|
void device_update(Device *device, DeviceScene *dscene, Scene *scene, Progress& progress);
|
|
void device_free(Device *device, DeviceScene *dscene);
|
|
};
|
|
|
|
/* Graph Compiler */
|
|
|
|
class SVMCompiler {
|
|
public:
|
|
SVMCompiler(ShaderManager *shader_manager, ImageManager *image_manager,
|
|
bool use_multi_closure_);
|
|
void compile(Shader *shader, vector<int4>& svm_nodes, int index);
|
|
|
|
void stack_assign(ShaderOutput *output);
|
|
void stack_assign(ShaderInput *input);
|
|
void stack_link(ShaderInput *input, ShaderOutput *output);
|
|
void add_node(NodeType type, int a = 0, int b = 0, int c = 0);
|
|
void add_node(int a = 0, int b = 0, int c = 0, int d = 0);
|
|
void add_node(NodeType type, const float3& f);
|
|
void add_node(const float4& f);
|
|
uint attribute(ustring name);
|
|
uint attribute(Attribute::Standard std);
|
|
uint encode_uchar4(uint x, uint y = 0, uint z = 0, uint w = 0);
|
|
uint closure_mix_weight_offset() { return mix_weight_offset; }
|
|
|
|
ShaderType output_type() { return current_type; }
|
|
|
|
ImageManager *image_manager;
|
|
ShaderManager *shader_manager;
|
|
KernelSunSky *sunsky;
|
|
bool background;
|
|
|
|
protected:
|
|
struct Stack {
|
|
Stack() { memset(users, 0, sizeof(users)); }
|
|
Stack(const Stack& other) { memcpy(users, other.users, sizeof(users)); }
|
|
Stack& operator=(const Stack& other) { memcpy(users, other.users, sizeof(users)); return *this; }
|
|
|
|
bool empty()
|
|
{
|
|
for(int i = 0; i < SVM_STACK_SIZE; i++)
|
|
if(users[i])
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
void print()
|
|
{
|
|
printf("stack <");
|
|
|
|
for(int i = 0; i < SVM_STACK_SIZE; i++)
|
|
printf((users[i])? "*": " ");
|
|
|
|
printf(">\n");
|
|
}
|
|
|
|
int users[SVM_STACK_SIZE];
|
|
};
|
|
|
|
struct StackBackup {
|
|
Stack stack;
|
|
vector<int> offsets;
|
|
set<ShaderNode*> done;
|
|
};
|
|
|
|
void stack_backup(StackBackup& backup, set<ShaderNode*>& done);
|
|
void stack_restore(StackBackup& backup, set<ShaderNode*>& done);
|
|
|
|
void stack_clear_temporary(ShaderNode *node);
|
|
int stack_size(ShaderSocketType type);
|
|
int stack_find_offset(ShaderSocketType type);
|
|
void stack_clear_users(ShaderNode *node, set<ShaderNode*>& done);
|
|
|
|
bool node_skip_input(ShaderNode *node, ShaderInput *input);
|
|
|
|
void find_dependencies(set<ShaderNode*>& dependencies, const set<ShaderNode*>& done, ShaderInput *input);
|
|
void generate_svm_nodes(const set<ShaderNode*>& nodes, set<ShaderNode*>& done);
|
|
void generate_closure(ShaderNode *node, set<ShaderNode*>& done);
|
|
void generate_multi_closure(ShaderNode *node, set<ShaderNode*>& done, uint in_offset);
|
|
|
|
void compile_type(Shader *shader, ShaderGraph *graph, ShaderType type);
|
|
|
|
vector<int4> svm_nodes;
|
|
ShaderType current_type;
|
|
Shader *current_shader;
|
|
ShaderGraph *current_graph;
|
|
Stack active_stack;
|
|
int max_stack_use;
|
|
uint mix_weight_offset;
|
|
bool use_multi_closure;
|
|
};
|
|
|
|
CCL_NAMESPACE_END
|
|
|
|
#endif /* __SVM_H__ */
|
|
|