187 lines
6.6 KiB
C
187 lines
6.6 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __BKE_SHADER_FX_H__
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#define __BKE_SHADER_FX_H__
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/** \file
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* \ingroup bke
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*/
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#include "BKE_customdata.h"
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#include "BLI_compiler_attrs.h"
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#include "DNA_shader_fx_types.h" /* needed for all enum typdefs */
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct ID;
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struct ListBase;
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struct ModifierUpdateDepsgraphContext;
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struct Object;
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struct ShaderFxData;
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#define SHADER_FX_ACTIVE(_fx, _is_render) \
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((((_fx)->mode & eShaderFxMode_Realtime) && (_is_render == false)) || \
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(((_fx)->mode & eShaderFxMode_Render) && (_is_render == true)))
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#define SHADER_FX_EDIT(_fx, _is_edit) ((((_fx)->mode & eShaderFxMode_Editmode) == 0) && (_is_edit))
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typedef enum {
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/* Should not be used, only for None type */
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eShaderFxType_NoneType,
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/* grease pencil effects */
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eShaderFxType_GpencilType,
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} ShaderFxTypeType;
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typedef enum {
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eShaderFxTypeFlag_SupportsEditmode = (1 << 0),
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/* For effects that support editmode this determines if the
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* effect should be enabled by default in editmode.
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*/
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eShaderFxTypeFlag_EnableInEditmode = (1 << 2),
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/* max one per type */
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eShaderFxTypeFlag_Single = (1 << 4),
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/* can't be added manually by user */
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eShaderFxTypeFlag_NoUserAdd = (1 << 5),
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} ShaderFxTypeFlag;
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/* IMPORTANT! Keep ObjectWalkFunc and IDWalkFunc signatures compatible. */
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typedef void (*ShaderFxObjectWalkFunc)(void *userData,
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struct Object *ob,
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struct Object **obpoin,
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int cb_flag);
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typedef void (*ShaderFxIDWalkFunc)(void *userData,
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struct Object *ob,
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struct ID **idpoin,
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int cb_flag);
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typedef void (*ShaderFxTexWalkFunc)(void *userData,
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struct Object *ob,
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struct ShaderFxData *fx,
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const char *propname);
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typedef struct ShaderFxTypeInfo {
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/* The user visible name for this effect */
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char name[32];
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/* The DNA struct name for the effect data type, used to
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* write the DNA data out.
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*/
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char struct_name[32];
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/* The size of the effect data type, used by allocation. */
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int struct_size;
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ShaderFxTypeType type;
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ShaderFxTypeFlag flags;
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/* Copy instance data for this effect type. Should copy all user
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* level settings to the target effect.
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*/
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void (*copyData)(const struct ShaderFxData *fx, struct ShaderFxData *target);
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/* Initialize new instance data for this effect type, this function
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* should set effect variables to their default values.
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*
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* This function is optional.
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*/
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void (*initData)(struct ShaderFxData *fx);
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/* Free internal effect data variables, this function should
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* not free the fx variable itself.
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*
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* This function is optional.
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*/
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void (*freeData)(struct ShaderFxData *fx);
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/* Return a boolean value indicating if this effect is able to be
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* calculated based on the effect data. This is *not* regarding the
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* fx->flag, that is tested by the system, this is just if the data
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* validates (for example, a lattice will return false if the lattice
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* object is not defined).
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*
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* This function is optional (assumes never disabled if not present).
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*/
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bool (*isDisabled)(struct ShaderFxData *fx, int userRenderParams);
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/* Add the appropriate relations to the dependency graph.
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*
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* This function is optional.
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*/
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void (*updateDepsgraph)(struct ShaderFxData *fx,
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const struct ModifierUpdateDepsgraphContext *ctx);
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/* Should return true if the effect needs to be recalculated on time
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* changes.
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*
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* This function is optional (assumes false if not present).
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*/
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bool (*dependsOnTime)(struct ShaderFxData *fx);
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/* Should call the given walk function on with a pointer to each Object
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* pointer that the effect data stores. This is used for linking on file
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* load and for unlinking objects or forwarding object references.
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*
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* This function is optional.
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*/
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void (*foreachObjectLink)(struct ShaderFxData *fx,
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struct Object *ob,
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ShaderFxObjectWalkFunc walk,
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void *userData);
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/* Should call the given walk function with a pointer to each ID
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* pointer (i.e. each data-block pointer) that the effect data
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* stores. This is used for linking on file load and for
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* unlinking data-blocks or forwarding data-block references.
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*
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* This function is optional. If it is not present, foreachObjectLink
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* will be used.
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*/
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void (*foreachIDLink)(struct ShaderFxData *fx,
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struct Object *ob,
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ShaderFxIDWalkFunc walk,
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void *userData);
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} ShaderFxTypeInfo;
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/* Initialize global data (type info and some common global storages). */
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void BKE_shaderfx_init(void);
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const ShaderFxTypeInfo *BKE_shaderfx_get_info(ShaderFxType type);
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struct ShaderFxData *BKE_shaderfx_new(int type);
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void BKE_shaderfx_free_ex(struct ShaderFxData *fx, const int flag);
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void BKE_shaderfx_free(struct ShaderFxData *fx);
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bool BKE_shaderfx_unique_name(struct ListBase *shaderfx, struct ShaderFxData *fx);
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bool BKE_shaderfx_depends_ontime(struct ShaderFxData *fx);
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struct ShaderFxData *BKE_shaderfx_findby_type(struct Object *ob, ShaderFxType type);
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struct ShaderFxData *BKE_shaderfx_findby_name(struct Object *ob, const char *name);
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void BKE_shaderfx_copydata_generic(const struct ShaderFxData *fx_src, struct ShaderFxData *fx_dst);
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void BKE_shaderfx_copydata(struct ShaderFxData *fx, struct ShaderFxData *target);
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void BKE_shaderfx_copydata_ex(struct ShaderFxData *fx,
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struct ShaderFxData *target,
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const int flag);
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void BKE_shaderfx_foreach_ID_link(struct Object *ob, ShaderFxIDWalkFunc walk, void *userData);
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bool BKE_shaderfx_has_gpencil(struct Object *ob);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __BKE_SHADER_FX_H__ */
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