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Diffstat (limited to 'intern/cycles/render/svm.h')
-rw-r--r-- | intern/cycles/render/svm.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/intern/cycles/render/svm.h b/intern/cycles/render/svm.h new file mode 100644 index 00000000000..d66d3816068 --- /dev/null +++ b/intern/cycles/render/svm.h @@ -0,0 +1,143 @@ +/* + * 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__ */ + |