mirror of
https://github.com/ptitSeb/Serious-Engine
synced 2024-11-22 10:20:26 +01:00
457 lines
13 KiB
C++
457 lines
13 KiB
C++
/* Copyright (c) 2002-2012 Croteam Ltd.
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This program is free software; you can redistribute it and/or modify
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it under the terms of version 2 of the GNU General Public License as published by
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the Free Software Foundation
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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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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <assert.h>
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#include <lwsurf.h>
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#include <lwhost.h>
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#include <lwserver.h>
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#include <lwgeneric.h>
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#include <crtdbg.h>
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#include <stdarg.h>
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#include "vecmat.h"
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#include <lwmonitor.h>
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#include <lwrender.h>
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#include <lwio.h>
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#include <lwdyna.h>
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#include <lwshader.h>
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#include <lwserver.h>
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#include <lwmotion.h>
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#include <lwpanel.h>
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#include <lwxpanel.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include "base.h"
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#ifndef PI
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#define PI 3.1415926535897932384
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#endif
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extern SurfaceInstance *_psiFirst = NULL; // linked list of surface instances
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/*
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======================================================================
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Create()
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Handler callback. Allocate and initialize instance data.
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The create function allocates a blotch struct and returns the pointer
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as the instance. Note that "Blotch *" is used throughout instead of
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"LWInstance". This works since a LWInstance type is a generic pointer
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and can safely be replaced with any specific pointer type. Instance
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variables are initialized to some default values.
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====================================================================== */
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XCALL_( static LWInstance )
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Create( void *priv, LWSurfaceID surf, LWError *err )
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{
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SurfaceInstance *psi;
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psi = (SurfaceInstance*)calloc( 1, sizeof( SurfaceInstance ));
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if ( !psi ) {
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*err = "Couldn't allocate memory for instance.";
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return NULL;
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}
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psi->si_idSurface = surf;
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psi->si_psiNext = _psiFirst;
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_psiFirst = psi;
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return psi;
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}
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/*
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======================================================================
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Destroy()
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Handler callback. Free resources allocated by Create().
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====================================================================== */
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XCALL_( static void )
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Destroy( SurfaceInstance *inst )
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{
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SurfaceInstance **ppsi = &_psiFirst;
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while(*ppsi!=NULL) {
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if (*ppsi == inst) {
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*ppsi = (*ppsi)->si_psiNext;
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break;
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}
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ppsi = &((*ppsi)->si_psiNext);
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}
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free(inst);
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}
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/*
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======================================================================
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Copy()
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Handler callback. Copy instance data.
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====================================================================== */
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XCALL_( static LWError )
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Copy( SurfaceInstance *to, SurfaceInstance *from )
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{
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XCALL_INIT;
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*to = *from;
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return NULL;
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}
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/*
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======================================================================
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Load()
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Handler callback. Read instance data. Shader instance data is stored
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in the SURF chunks of object files, but it isn't necessary to know
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that to read and write the data.
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====================================================================== */
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XCALL_( static LWError )
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Load( SurfaceInstance *inst, const LWLoadState *ls )
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{
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float af[3];
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LWLOAD_I1( ls, inst->si_strShader, sizeof(inst->si_strShader));
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LWLOAD_I1( ls, (char*)&inst->si_astrTextures, sizeof(inst->si_astrTextures));
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for (int i=0; i<sizeof(inst->si_adColors)/sizeof(inst->si_adColors[0]); i++) {
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LWLOAD_FP( ls, af, 3);
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inst->si_adColors[i][0] = af[0];
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inst->si_adColors[i][1] = af[1];
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inst->si_adColors[i][2] = af[2];
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}
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return NULL;
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}
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/*
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======================================================================
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Save()
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Handler callback. Write instance data. The I/O functions in lwio.h
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include one for reading and writing floats, but not doubles. We just
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transfer our double-precision data to a float variable before calling
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the LWSAVE_FP() macro.
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====================================================================== */
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XCALL_( static LWError )
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Save( SurfaceInstance *inst, const LWSaveState *ss )
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{
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float af[3];
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LWSAVE_I1( ss, inst->si_strShader, sizeof(inst->si_strShader));
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LWSAVE_I1( ss, (char*)&inst->si_astrTextures, sizeof(inst->si_astrTextures));
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for (int i=0; i<sizeof(inst->si_adColors)/sizeof(inst->si_adColors[0]); i++) {
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af[0] = (float)inst->si_adColors[i][0];
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af[1] = (float)inst->si_adColors[i][1];
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af[2] = (float)inst->si_adColors[i][2];
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LWSAVE_FP( ss, af, 3);
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}
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return NULL;
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}
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/*
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======================================================================
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DescLn()
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Handler callback. Write a one-line text description of the instance
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data. Since the string must persist after this is called, it's part
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of the instance.
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====================================================================== */
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XCALL_( static const char * )
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DescLn( SurfaceInstance *inst )
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{
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sprintf(inst->desc, "SE_Shader (%s)", inst->si_strShader);
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return inst->desc;
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}
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XCALL_( static LWError )
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Init( SurfaceInstance *inst, int mode )
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{
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return NULL;
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}
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XCALL_( static void )
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Cleanup( SurfaceInstance *inst )
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{
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return;
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}
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XCALL_( static LWError )
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NewTime( SurfaceInstance *inst, LWFrame f, LWTime t )
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{
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return NULL;
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}
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XCALL_( static unsigned int )
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Flags( SurfaceInstance *inst )
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{
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return 0; // we don't actually do any rendering in LW
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}
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XCALL_( static void )
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Evaluate( SurfaceInstance *inst, LWShaderAccess *sa )
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{
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}
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/*
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======================================================================
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Handler()
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Handler activation function. Check the version and fill in the
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callback fields of the handler structure.
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====================================================================== */
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XCALL_(int) Handler_SurfaceParameters( long version, GlobalFunc *global, LWShaderHandler *local, void *serverData)
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{
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if ( version != LWSHADER_VERSION ) return AFUNC_BADVERSION;
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(void*&)local->inst->create = Create;
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(void*&)local->inst->destroy = Destroy;
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(void*&)local->inst->load = Load;
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(void*&)local->inst->save = Save;
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(void*&)local->inst->copy = Copy;
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(void*&)local->inst->descln = DescLn;
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(void*&)local->rend->init = Init;
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(void*&)local->rend->cleanup = Cleanup;
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(void*&)local->rend->newTime = NewTime;
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(void*&)local->evaluate = Evaluate;
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(void*&)local->flags = Flags;
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return AFUNC_OK;
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}
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/* interface stuff ----- */
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static LWXPanelFuncs *xpanf;
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static LWColorActivateFunc *colorpick;
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static LWInstUpdate *lwupdate;
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enum {
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ID_SHADER = 0x8001,
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ID_TEXTURE0, ID_TEXTURE1, ID_TEXTURE2, ID_TEXTURE3,
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ID_TEXTURE4, ID_TEXTURE5, ID_TEXTURE6, ID_TEXTURE7,
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ID_COLOR0, ID_COLOR1, ID_COLOR2, ID_COLOR3,
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ID_COLOR4, ID_COLOR5, ID_COLOR6, ID_COLOR7
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};
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/*
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======================================================================
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handle_color()
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Event callback for the color button. Called by LWXPanels. Opens the
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user's installed color picker.
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====================================================================== */
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static void handle_color( LWXPanelID panel, int cid )
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{
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/* LWColorPickLocal local;
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SurfaceInstance *inst;
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int result;
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inst = (SurfaceInstance *)xpanf->getData( panel, 0 );
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local.result = 0;
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local.title = "Surface Color";
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local.red = ( float ) inst->color[ 0 ];
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local.green = ( float ) inst->color[ 1 ];
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local.blue = ( float ) inst->color[ 2 ];
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local.data = NULL;
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local.hotFunc = NULL;
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result = colorpick( LWCOLORPICK_VERSION, &local );
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if ( result == AFUNC_OK && local.result > 0 ) {
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inst->color[ 0 ] = local.red;
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inst->color[ 1 ] = local.green;
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inst->color[ 2 ] = local.blue;
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lwupdate( LWSHADER_HCLASS, inst );
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}*/
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}
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/*
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======================================================================
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ui_get()
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Xpanels callback for LWXP_VIEW panels. Returns a pointer to the data
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for a given control value.
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====================================================================== */
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void *ui_get( SurfaceInstance *inst, unsigned long vid )
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{
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if (vid == ID_SHADER) {
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return inst->si_strShader;
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} else if (vid>=ID_COLOR0 && vid<=ID_COLOR7) {
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return &inst->si_adColors[vid-ID_COLOR0];
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} else if (vid>=ID_TEXTURE0 && vid<=ID_TEXTURE7) {
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return inst->si_astrTextures[vid-ID_TEXTURE0];
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} else {
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return NULL;
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}
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}
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/*
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======================================================================
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ui_set()
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Xpanels callback for LWXP_VIEW panels. Store a value in our instance
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data.
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====================================================================== */
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int ui_set( SurfaceInstance *inst, unsigned long vid, void *value )
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{
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if (vid == ID_SHADER) {
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strcpy(inst->si_strShader, (char*)value);
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return 1;
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} else if (vid>=ID_TEXTURE0 && vid<=ID_TEXTURE7) {
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strcpy(inst->si_astrTextures[vid - ID_TEXTURE0], (char*)value);
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return 1;
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} else if (vid>=ID_COLOR0 && vid<=ID_COLOR7) {
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double *ad = (double *)value;
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inst->si_adColors[vid - ID_COLOR0][0] = ad[0];
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inst->si_adColors[vid - ID_COLOR0][1] = ad[1];
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inst->si_adColors[vid - ID_COLOR0][2] = ad[2];
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return 1;
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} else {
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return 0;
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}
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}
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/*
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======================================================================
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ui_chgnotify()
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XPanel callback. XPanels calls this when an event occurs that affects
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the value of one of your controls. We use the instance update global
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to tell Layout that our instance data has changed.
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====================================================================== */
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void ui_chgnotify( LWXPanelID panel, unsigned long cid, unsigned long vid,
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int event )
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{
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void *dat;
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if ( event == LWXPEVENT_VALUE )
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if ( dat = xpanf->getData( panel, 0 ))
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lwupdate( LWSHADER_HCLASS, dat );
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}
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/*
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======================================================================
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get_panel()
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Create and initialize an LWXP_VIEW panel. Called by Interface().
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====================================================================== */
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LWXPanelID get_panel( SurfaceInstance *inst )
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{
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static LWXPanelControl xctl[] = {
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{ ID_SHADER, "Shader", "string", },
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{ ID_TEXTURE0, "Texture0", "string" },
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{ ID_TEXTURE1, "Texture1", "string" },
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{ ID_TEXTURE2, "Texture2", "string" },
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{ ID_TEXTURE3, "Texture3", "string" },
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{ ID_TEXTURE4, "Texture4", "string" },
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{ ID_TEXTURE5, "Texture5", "string" },
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{ ID_TEXTURE6, "Texture6", "string" },
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{ ID_TEXTURE7, "Texture7", "string" },
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{ ID_COLOR0, "Color0", "color" },
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{ ID_COLOR1, "Color1", "color" },
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{ ID_COLOR2, "Color2", "color" },
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{ ID_COLOR3, "Color3", "color" },
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{ ID_COLOR4, "Color4", "color" },
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{ ID_COLOR5, "Color5", "color" },
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{ ID_COLOR6, "Color6", "color" },
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{ ID_COLOR7, "Color7", "color" },
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{ 0 }
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};
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static LWXPanelDataDesc xdata[] = {
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{ ID_SHADER, "Shader", "string" },
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{ ID_COLOR0, "Color0", "float" },
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{ ID_COLOR1, "Color1", "float" },
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{ ID_COLOR2, "Color2", "float" },
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{ ID_COLOR3, "Color3", "float" },
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{ ID_COLOR4, "Color4", "float" },
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{ ID_COLOR5, "Color5", "float" },
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{ ID_COLOR6, "Color6", "float" },
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{ ID_COLOR7, "Color7", "float" },
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{ 0 }
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};
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static LWXPanelHint xhint[] = {
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XpLABEL( 0, "SE Shader" ),
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XpBUTNOTIFY( ID_COLOR0, handle_color ),
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XpCHGNOTIFY( ui_chgnotify ),
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XpEND
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};
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LWXPanelID panel;
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if ( panel = xpanf->create( LWXP_VIEW, xctl )) {
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xpanf->hint( panel, 0, xhint );
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xpanf->describe( panel, xdata, (void *(__cdecl *)(void *,unsigned long))ui_get, (enum en_LWXPRefreshCodes (__cdecl *)(void *,unsigned long,void *))ui_set );
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xpanf->viewInst( panel, inst );
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xpanf->setData( panel, 0, inst );
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}
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return panel;
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}
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/*
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======================================================================
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Interface()
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The interface activation function.
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====================================================================== */
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XCALL_(int) Interface_SurfaceParameters( long version, GlobalFunc *global, LWInterface *local, void *serverData)
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{
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_global = global ;
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_serverData = serverData;
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if ( version != LWINTERFACE_VERSION ) return AFUNC_BADVERSION;
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(void*&)colorpick = global( LWCOLORACTIVATEFUNC_GLOBAL, GFUSE_TRANSIENT );
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(void*&)lwupdate = global( LWINSTUPDATE_GLOBAL, GFUSE_TRANSIENT );
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(void*&)xpanf = global( LWXPANELFUNCS_GLOBAL, GFUSE_TRANSIENT );
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if ( !colorpick || !lwupdate || !xpanf ) return AFUNC_BADGLOBAL;
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local->panel = get_panel( (SurfaceInstance*)local->inst );
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local->options = NULL;
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local->command = NULL;
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return local->panel ? AFUNC_OK : AFUNC_BADGLOBAL;
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}
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