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/*
* 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.
*
* The Original Code is Copyright (C) 2005 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup gpu
*/
#ifndef __GPU_NODE_GRAPH_H__
#define __GPU_NODE_GRAPH_H__
#include "DNA_customdata_types.h"
#include "DNA_listBase.h"
#include "GPU_material.h"
#include "GPU_glew.h"
#include "GPU_shader.h"
struct GPUNode;
struct GPUOutput;
struct GPUShader;
struct GPUVertAttrLayers;
struct ListBase;
typedef enum eGPUDataSource {
GPU_SOURCE_OUTPUT,
GPU_SOURCE_CONSTANT,
GPU_SOURCE_UNIFORM,
GPU_SOURCE_ATTR,
GPU_SOURCE_BUILTIN,
GPU_SOURCE_STRUCT,
GPU_SOURCE_TEX,
} eGPUDataSource;
typedef enum {
GPU_NODE_LINK_NONE = 0,
GPU_NODE_LINK_ATTR,
GPU_NODE_LINK_BUILTIN,
GPU_NODE_LINK_COLORBAND,
GPU_NODE_LINK_CONSTANT,
GPU_NODE_LINK_IMAGE_BLENDER,
GPU_NODE_LINK_IMAGE_TILEMAP,
GPU_NODE_LINK_OUTPUT,
GPU_NODE_LINK_UNIFORM,
} GPUNodeLinkType;
struct GPUNode {
struct GPUNode *next, *prev;
const char *name;
/* Internal flag to mark nodes during pruning */
bool tag;
ListBase inputs;
ListBase outputs;
};
struct GPUNodeLink {
GPUNodeStack *socket;
GPUNodeLinkType link_type;
int users; /* Refcount */
union {
/* GPU_NODE_LINK_CONSTANT | GPU_NODE_LINK_UNIFORM */
float *data;
/* GPU_NODE_LINK_BUILTIN */
eGPUBuiltin builtin;
/* GPU_NODE_LINK_COLORBAND */
struct GPUTexture **colorband;
/* GPU_NODE_LINK_OUTPUT */
struct GPUOutput *output;
/* GPU_NODE_LINK_ATTR */
struct {
const char *attr_name;
CustomDataType attr_type;
};
/* GPU_NODE_LINK_IMAGE_BLENDER | GPU_NODE_LINK_IMAGE_TILEMAP */
struct {
struct Image *ima;
struct ImageUser *iuser;
};
};
};
typedef struct GPUOutput {
struct GPUOutput *next, *prev;
GPUNode *node;
eGPUType type; /* data type = length of vector/matrix */
GPUNodeLink *link; /* output link */
int id; /* unique id as created by code generator */
} GPUOutput;
typedef struct GPUInput {
struct GPUInput *next, *prev;
GPUNode *node;
eGPUType type; /* datatype */
GPUNodeLink *link;
int id; /* unique id as created by code generator */
eGPUDataSource source; /* data source */
int shaderloc; /* id from opengl */
char shadername[32]; /* name in shader */
/* Content based on eGPUDataSource */
union {
/* GPU_SOURCE_CONSTANT | GPU_SOURCE_UNIFORM */
float vec[16]; /* vector data */
/* GPU_SOURCE_BUILTIN */
eGPUBuiltin builtin; /* builtin uniform */
/* GPU_SOURCE_TEX */
struct {
struct GPUTexture **colorband; /* input texture, only set at runtime */
struct Image *ima; /* image */
struct ImageUser *iuser; /* image user */
bool bindtex; /* input is responsible for binding the texture? */
int texid; /* number for multitexture, starting from zero */
eGPUType textype; /* texture type (2D, 1D Array ...) */
};
/* GPU_SOURCE_ATTR */
struct {
/** Attribute name. */
char attr_name[MAX_CUSTOMDATA_LAYER_NAME];
/** ID for vertex attributes. */
int attr_id;
/** This is the first one that is bound. */
bool attr_first;
/** Attribute type. */
CustomDataType attr_type;
};
};
} GPUInput;
typedef struct GPUNodeGraph {
/* Nodes */
ListBase nodes;
/* Inputs and output. */
ListBase inputs;
GPUNodeLink *outlink;
/* Requested attributes and textures. */
ListBase attributes;
ListBase textures;
} GPUNodeGraph;
/* Node Graph */
void gpu_node_graph_prune_unused(GPUNodeGraph *graph);
void gpu_node_graph_free_nodes(GPUNodeGraph *graph);
void gpu_node_graph_free(GPUNodeGraph *graph);
/* Material calls */
void gpu_material_add_node(struct GPUMaterial *material, struct GPUNode *node);
struct GPUTexture **gpu_material_ramp_texture_row_set(struct GPUMaterial *mat,
int size,
float *pixels,
float *row);
struct GSet *gpu_material_used_libraries(struct GPUMaterial *material);
#endif /* __GPU_NODE_GRAPH_H__ */
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