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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
* Plays the background film of a scene.
*/
#include "tinsel/anim.h"
#include "tinsel/background.h"
#include "tinsel/cursor.h"
#include "tinsel/dw.h"
#include "tinsel/faders.h"
#include "tinsel/film.h"
#include "tinsel/font.h"
#include "tinsel/handle.h"
#include "tinsel/multiobj.h"
#include "tinsel/object.h"
#include "tinsel/pcode.h" // CONTROL_STARTOFF
#include "tinsel/pid.h"
#include "tinsel/sched.h"
#include "tinsel/timers.h" // For ONE_SECOND constant
#include "tinsel/tinlib.h" // For Control()
#include "tinsel/tinsel.h"
#include "common/textconsole.h"
#include "common/util.h"
namespace Tinsel {
/**
* Run main animation that comprises the scene background.
*/
void BGmainProcess(CORO_PARAM, const void *param) {
// COROUTINE
CORO_BEGIN_CONTEXT;
CORO_END_CONTEXT(_ctx);
CORO_BEGIN_CODE(_ctx);
const FILM *pFilm;
const FREEL *pReel;
const MULTI_INIT *pmi;
// get the stuff copied to process when it was created
if (_vm->_bg->_pBG[0] == NULL) {
/*** At start of scene ***/
if (TinselVersion <= 1) {
pReel = (const FREEL *)param;
// Get the MULTI_INIT structure
pmi = pReel->GetMultiInit();
// Initialize and insert the object, and initialize its script.
_vm->_bg->_pBG[0] = MultiInitObject(pmi);
MultiInsertObject(_vm->_bg->GetPlayfieldList(FIELD_WORLD), _vm->_bg->_pBG[0]);
InitStepAnimScript(&_vm->_bg->_thisAnim[0], _vm->_bg->_pBG[0], FROM_32(pReel->script), _vm->_bg->getBgSpeed());
_vm->_bg->_bgReels = 1;
} else {
/*** At start of scene ***/
pFilm = (const FILM *)_vm->_handle->LockMem(_vm->_bg->GetBgroundHandle());
_vm->_bg->_bgReels = FROM_32(pFilm->numreels);
int i;
for (i = 0; i < _vm->_bg->_bgReels; i++) {
// Get the MULTI_INIT structure
pmi = pFilm->reels[i].GetMultiInit();
// Initialize and insert the object, and initialize its script.
_vm->_bg->_pBG[i] = MultiInitObject(pmi);
MultiInsertObject(_vm->_bg->GetPlayfieldList(FIELD_WORLD), _vm->_bg->_pBG[i]);
MultiSetZPosition(_vm->_bg->_pBG[i], 0);
InitStepAnimScript(&_vm->_bg->_thisAnim[i], _vm->_bg->_pBG[i], FROM_32(pFilm->reels[i].script), _vm->_bg->getBgSpeed());
if (i > 0)
_vm->_bg->_pBG[i-1]->pSlave = _vm->_bg->_pBG[i];
}
}
if (_vm->_bg->GetDoFadeIn()) {
FadeInFast();
_vm->_bg->SetDoFadeIn(false);
} else if (TinselVersion >= 2)
PokeInTagColor();
for (;;) {
for (int i = 0; i < _vm->_bg->_bgReels; i++) {
if (StepAnimScript(&_vm->_bg->_thisAnim[i]) == ScriptFinished)
error("Background animation has finished");
}
CORO_SLEEP(1);
}
} else {
// New background during scene
if (TinselVersion <= 1) {
pReel = (const FREEL *)param;
InitStepAnimScript(&_vm->_bg->_thisAnim[0], _vm->_bg->_pBG[0], FROM_32(pReel->script), _vm->_bg->getBgSpeed());
StepAnimScript(&_vm->_bg->_thisAnim[0]);
} else {
pFilm = (const FILM *)_vm->_handle->LockMem(_vm->_bg->GetBgroundHandle());
assert(_vm->_bg->_bgReels == (int32)FROM_32(pFilm->numreels));
// Just re-initialize the scripts.
for (int i = 0; i < _vm->_bg->_bgReels; i++) {
InitStepAnimScript(&_vm->_bg->_thisAnim[i], _vm->_bg->_pBG[i], pFilm->reels[i].script, _vm->_bg->getBgSpeed());
StepAnimScript(&_vm->_bg->_thisAnim[i]);
}
}
}
CORO_END_CODE;
}
/**
* Runs secondary reels for a scene background
*/
void BGotherProcess(CORO_PARAM, const void *param) {
// COROUTINE
CORO_BEGIN_CONTEXT;
OBJECT *pObj;
ANIM anim;
CORO_END_CONTEXT(_ctx);
const FREEL *pReel = (const FREEL *)param;
const MULTI_INIT *pmi = pReel->GetMultiInit();
CORO_BEGIN_CODE(_ctx);
// Initialize and insert the object, and initialize its script.
_ctx->pObj = MultiInitObject(pmi);
MultiInsertObject(_vm->_bg->GetPlayfieldList(FIELD_WORLD), _ctx->pObj);
InitStepAnimScript(&_ctx->anim, _vm->_bg->_pBG[0], FROM_32(pReel->script), _vm->_bg->getBgSpeed());
while (StepAnimScript(&_ctx->anim) != ScriptFinished)
CORO_SLEEP(1);
CORO_END_CODE;
}
/**
* Given the scene background film, extracts the palette handle for
* everything else's use, then starts a display process for each reel
* in the film.
* @param hFilm Scene background film
*/
void Background::StartupBackground(CORO_PARAM, SCNHANDLE hFilm) {
CORO_BEGIN_CONTEXT;
CORO_END_CONTEXT(_ctx);
const FILM *pfilm = (const FILM *)_vm->_handle->LockMem(hFilm);
const FREEL *pfr = &pfilm->reels[0];
if (TinselVersion != 3) {
const MULTI_INIT *pmi = pfr->GetMultiInit();
const FRAME *pFrame = pmi->GetFrame();
const IMAGE *pim = _vm->_handle->GetImage(READ_32(pFrame));
SetBackPal(pim->hImgPal);
delete pim;
}
CORO_BEGIN_CODE(_ctx);
_hBackground = hFilm; // Save handle in case of Save_Scene()
// Extract the film speed
_BGspeed = ONE_SECOND / FROM_32(pfilm->frate);
// Start display process for each reel in the film
CoroScheduler.createProcess(PID_REEL, BGmainProcess, &pfilm->reels[0], sizeof(FREEL));
if (TinselVersion == 0) {
for (uint i = 1; i < FROM_32(pfilm->numreels); ++i)
CoroScheduler.createProcess(PID_REEL, BGotherProcess, &pfilm->reels[i], sizeof(FREEL));
}
if (_pBG[0] == NULL)
ControlStartOff();
if ((TinselVersion >= 2) && (coroParam != Common::nullContext))
CORO_GIVE_WAY;
CORO_END_CODE;
}
} // End of namespace Tinsel
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