mirror of
https://github.com/ptitSeb/Serious-Engine
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159 lines
6.6 KiB
C
159 lines
6.6 KiB
C
/****
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* LWSDK Header File
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* Copyright 1999, NewTek, Inc.
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*
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* LWVPARM.H -- LightWave Time-Variant, Textured Parameters
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****
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*/
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#ifndef LWSDK_VPARM_H
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#define LWSDK_VPARM_H
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#include <lwtypes.h>
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#include <lwio.h>
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#include <lwenvel.h>
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#include <lwtxtr.h>
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#define LWVPARMFUNCS_GLOBAL "LWVParmFuncs 2"
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typedef void *LWVParmID;
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/* LWVParm envelope types */
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#define LWVP_FLOAT 0x10
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#define LWVP_PERCENT 0x20
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#define LWVP_DIST 0x30
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#define LWVP_ANGLE 0x40
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#define LWVP_COLOR 0x51
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#define LWVPF_VECTOR 0x01
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/* Texture data types */
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#define LWVPDT_NOTXTR -1
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#define LWVPDT_VECTOR 0
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#define LWVPDT_COLOR 1
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#define LWVPDT_PERCENT 2
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#define LWVPDT_SCALAR 3
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#define LWVPDT_DISPLACEMENT 4
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/* state flags */
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#define LWVPSF_ENV (1<<0) // create (set) or has (get) envelope
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#define LWVPSF_TEX (1<<1) // create (set) or has (get) texture
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/****
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* VParm Event Notification
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* Texture Event Codes:
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* TXTRACK - Generated as texture changes (eventData == NULL)
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* TXUPDATE - Generated after texture has changed (eventData == NULL)
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* TXAUTOSIZE - Request for texture autosize (eventData == bbox[3][2])
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* Envelope Event Codes:
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* ENVTRACK - Generated as envelope changes (eventData == NULL)
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* ENVUPDATE - Generated after envelope has changed (eventData == NULL)
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* Envelope and Texture Instance Events:
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* ENVNEW - A texture has been created (eventData == NULL)
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* ENVOLD - The texture is being destroyed (eventData == NULL)
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* TEXNEW - An envelope has been created (eventData == NULL)
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* TEXOLD - The envelope is being destroyed (eventData == NULL)
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****
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*/
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typedef enum en_LWVP_EVENTCODES {
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LWVPEC_TXTRACK = 0,
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LWVPEC_TXUPDATE,
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LWVPEC_TXAUTOSIZE,
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LWVPEC_ENVTRACK,
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LWVPEC_ENVUPDATE,
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LWVPEC_ENVNEW,
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LWVPEC_ENVOLD,
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LWVPEC_TEXNEW,
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LWVPEC_TEXOLD,
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} en_lwvpec;
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typedef int LWVP_EventFunc ( LWVParmID vp, void *userData,
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en_lwvpec eventCode, void *eventData );
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/****
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* Time-Variant parameters are double precision vectors (3 element arrays)
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* which may have a time-dependent nature - i.e., the value at time = 1.0
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* is different at time = 2.0. Time-Variant parameters create and destroy
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* LightWave envelopes as needed based on user interaction, application
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* events, etc.
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****
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* ATTENTION: When using LWVParms with an LWXPanel, the VParm is "get-only"
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* data. Never update the plugin's pointer during the XPanel
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* "set". The plugin should always use the LWVParmID returned
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* by the create method.
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****
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* API Methods
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* -----------
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*
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* create: Creates a time-variant parameter instance.
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* destroy: Releases resources used by instance.
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* setup: This MUST be called for each parameter created. The envelope
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* group ID is required. Any envelopes created for the
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* this parameter will belong to the specified group. A name
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* is also recommended for the parameter since this is what the
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* user may see when manipulating the envelope or texture.
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* load: Loads settings for a Time-Variant Parameter.
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* save: Saves settings for a Time-Variant Parameter.
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* getVal: Obtains the value of the parameter at a given time where
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* result is a 3 element array to be popuplated.
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* If a texture exists, the LWMicropolID should be non-NULL and
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* the return value is the texture's opacity.
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* If, however, the LWMicropolID is NULL, the texture's
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* contribution is ignored and only the parameter value
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* itself is returned.
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* setVal: Sets the value of the parameter where value is an array of
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* 3 doubles. If the paramter is enveloped, setting the value
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* has no effect. The method returns the number of elements
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* processed (0, 1, or 3).
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* getState: Returns a bitflag value containing LWVPSF_* state flags
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* to indicate true if the parameter has an envelope and/or
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* texture, and may contain other state information in the future.
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* setState: This is the counterpart to the getState and using the
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* bitflags 'state' value to create or destroy the
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* parameter's envelope and or texture.
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* A false bit state indicates any existing envelope/texture
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* should be destroyed so it is recommended to use a getState
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* to obtain the current state information, make the necessary
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* adjustments, and then call setState.
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* Bit states of true will create an envelope or texture
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* (if one does not already exist) using the information
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* provided to the setup method.
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* editEnv: If an envelope exists for the paramenter, this will open
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* the envelope editor.
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* editTex: If a texture exists for the paramenter, this will open
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* the texture editor.
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* initMP: Utility method to initialize an LWMicropolID instance to
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* default settings.
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* getEnv: Populates 'envlist' with envelope instance(s) for the LWVParmID
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* If no envelope exists, the array elements will be NULL.
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* getTex: Returns the current texture instance for the LWVParmID
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****
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*/
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typedef struct st_LWVParmFuncs {
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LWVParmID (*create) ( int envType, int texType );
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void (*destroy) ( LWVParmID parm );
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void (*setup) ( LWVParmID parm,
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const char *channelName,
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LWChanGroupID group,
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LWTxtrContextID gc,
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LWVP_EventFunc *eventFunc,
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const char *pluginName,
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void *userData );
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LWError (*copy) ( LWVParmID to, LWVParmID from );
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LWError (*load) ( LWVParmID parm, const LWLoadState *load);
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LWError (*save) ( LWVParmID parm, const LWSaveState *save);
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double (*getVal) ( LWVParmID parm, LWTime t,
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LWMicropolID mp, double *result );
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int (*setVal) ( LWVParmID parm, double *value );
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int (*getState) ( LWVParmID parm );
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void (*setState) ( LWVParmID parm, int state );
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void (*editEnv) ( LWVParmID parm );
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void (*editTex) ( LWVParmID parm );
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void (*initMP) ( LWMicropolID mp );
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void (*getEnv) ( LWVParmID parm, LWEnvelopeID envlist[3] );
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LWTextureID (*getTex) ( LWVParmID parm );
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} LWVParmFuncs;
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/* close LWSDK_VPARM_H header */
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#endif
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