bool grLoadPngTexture (const char *fname, ssgTextureInfo* info)
{
GLubyte *tex;
int w, h;
int mipmap = 1;
TRACE_GL("Load: grLoadPngTexture start");
tex = (GLubyte*)GfImgReadPng(fname, &w, &h, 2.0);
if (!tex) {
return false;
}
if (info) {
info -> width = w;
info -> height = h;
info -> depth = 4;
info -> alpha = true;
}
TRACE_GL("Load: grLoadPngTexture stop");
// TODO: Check if tex is freed.
// Check/fix potential problems related to malloc/delete mixture
// (instead of malloc/free or new/delete).
mipmap = doMipMap(fname, mipmap);
GLubyte* tex2 = new GLubyte[w*h*4];
memcpy(tex2, tex, w*h*4);
free(tex);
tex = tex2;
return grMakeMipMaps(tex, w, h, 4, mipmap);
}
void grDrawBackground(class cGrCamera *cam, class cGrBackgroundCam *bgCam)
{
TRACE_GL("grDrawBackground: ssgCullAndDraw start");
bgCam->update(cam);
bgCam->action();
ssgCullAndDraw(TheBackground);
TRACE_GL("grDrawBackground: ssgCullAndDraw");
}
int
refresh(tSituation *s)
{
int i;
START_PROFILE("refresh");
nFrame++;
grCurTime = GfTimeClock();
grDeltaTime = grCurTime - OldTime;
if ((grCurTime - OldTime) > 1.0) {
/* The Frames Per Second (FPS) display is refreshed every second */
grFps = (tdble)nFrame / (grCurTime - OldTime);
nFrame = 0;
OldTime = grCurTime;
}
TRACE_GL("refresh: start");
START_PROFILE("grRefreshSound*");
grRefreshSound(s, grScreens[0]->getCurCamera());
STOP_PROFILE("grRefreshSound*");
START_PROFILE("grDrawBackground/glClear");
glDepthFunc(GL_LEQUAL);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
STOP_PROFILE("grDrawBackground/glClear");
for (i = 0; i < GR_NB_MAX_SCREEN; i++) {
grScreens[i]->update(s, grFps);
}
grUpdateSmoke(s->currentTime);
STOP_PROFILE("refresh");
return 0;
}
void grDrawCar(tCarElt *car, tCarElt *curCar, int dispCarFlag, int dispDrvFlag, double curTime, class cGrPerspCamera *curCam)
{
sgCoord wheelpos;
int index, i, j;
static float maxVel[3] = { 20.0, 40.0, 70.0 };
float lod;
TRACE_GL("cggrDrawCar: start");
index = car->index;
if (car->priv.collision_state.collision_count > 0) {
tCollisionState* collision_state = &car->priv.collision_state;
grPropagateDamage (grCarInfo[index].carEntity, collision_state->pos, collision_state->force, 0);
collision_state->collision_count = 0;
}
grCarInfo[index].distFromStart=grGetDistToStart(car);
grCarInfo[index].envAngle=RAD2DEG(car->_yaw);
if ((car == curCar) && (dispCarFlag != 1)) {
grCarInfo[index].LODSelector->select(0);
} else {
lod = curCam->getLODFactor(car->_pos_X, car->_pos_Y, car->_pos_Z);
i = 0;
while (lod < grCarInfo[index].LODThreshold[i] * grLodFactorValue) {
i++;
}
if ((car->_state & RM_CAR_STATE_DNF) && (grCarInfo[index].LODThreshold[i] > 0.0)) {
i++;
}
grCarInfo[index].LODSelector->select(grCarInfo[index].LODSelectMask[i]);
if (dispDrvFlag) {
grCarInfo[index].driverSelector->select(1);
} else {
grCarInfo[index].driverSelector->select(0);
}
}
sgCopyMat4(grCarInfo[index].carPos, car->_posMat);
grCarInfo[index].px=car->_pos_X;
grCarInfo[index].py=car->_pos_Y;
grCarInfo[index].carTransform->setTransform(grCarInfo[index].carPos);
if ((car == curCar) && (dispCarFlag != 1)) {
grDrawShadow(car, 0);
} else {
grDrawShadow(car, 1);
}
grUpdateSkidmarks(car, curTime);
grDrawSkidmarks(car);
grAddSmoke(car, curTime);
if ((car == curCar) && (dispCarFlag != 1)) {
grUpdateCarlight(car, curCam, 0);
} else {
grUpdateCarlight(car, curCam, 1);
}
/* Env mapping selection by the position on the track */
grCarInfo[index].envSelector->selectStep(car->_trkPos.seg->envIndex);
/* wheels */
for (i = 0; i < 4; i++) {
float *clr;
sgSetCoord(&wheelpos, car->priv.wheel[i].relPos.x, car->priv.wheel[i].relPos.y, car->priv.wheel[i].relPos.z,
RAD2DEG(car->priv.wheel[i].relPos.az), RAD2DEG(car->priv.wheel[i].relPos.ax), 0);
grCarInfo[index].wheelPos[i]->setTransform(&wheelpos);
sgSetCoord(&wheelpos, 0, 0, 0, 0, 0, RAD2DEG(car->priv.wheel[i].relPos.ay));
grCarInfo[index].wheelRot[i]->setTransform(&wheelpos);
for (j = 0; j < 3; j++) {
if (fabs(car->_wheelSpinVel(i)) < maxVel[j])
break;
}
grCarInfo[index].wheelselector[i]->select(1<<j);
clr = grCarInfo[index].brkColor[i]->get(0);
clr[0] = 0.1 + car->_brakeTemp(i) * 1.5;
clr[1] = 0.1 + car->_brakeTemp(i) * 0.3;
clr[2] = 0.1 - car->_brakeTemp(i) * 0.3;
}
/* push the car at the end of the display order */
CarsAnchorTmp->addKid(grCarInfo[index].carTransform);
CarsAnchor->removeKid(grCarInfo[index].carTransform);
CarsAnchor->addKid(grCarInfo[index].carTransform);
CarsAnchorTmp->removeKid(grCarInfo[index].carTransform);
TRACE_GL("cggrDrawCar: end");
}
void
grInitCar(tCarElt *car)
{
const int BUFSIZE=4096;
char buf[BUFSIZE];
int index;
int selIndex;
ssgEntity *carEntity;
ssgSelector *LODSel;
ssgTransform *wheel[4];
int nranges;
int i, j;
void *handle;
const char *param;
int lg;
const int PATHSIZE=256;
char path[PATHSIZE];
myLoaderOptions options;
sgVec3 lightPos;
int lightNum;
const char *lightType;
int lightTypeNum;
if (!CarsAnchorTmp) {
CarsAnchorTmp = new ssgBranch();
}
grInitBoardCar(car);
TRACE_GL("loadcar: start");
ssgSetCurrentOptions ( &options ) ;
grCarIndex = index = car->index; /* current car's index */
handle = car->_carHandle;
/* Load visual attributes */
car->_exhaustNb = GfParmGetEltNb(handle, SECT_EXHAUST);
car->_exhaustNb = MIN(car->_exhaustNb, 2);
car->_exhaustPower = GfParmGetNum(handle, SECT_EXHAUST, PRM_POWER, NULL, 1.0);
for (i = 0; i < car->_exhaustNb; i++) {
snprintf(path, PATHSIZE, "%s/%d", SECT_EXHAUST, i + 1);
car->_exhaustPos[i].x = GfParmGetNum(handle, path, PRM_XPOS, NULL, -car->_dimension_x / 2.0);
car->_exhaustPos[i].y = -GfParmGetNum(handle, path, PRM_YPOS, NULL, car->_dimension_y / 2.0);
car->_exhaustPos[i].z = GfParmGetNum(handle, path, PRM_ZPOS, NULL, 0.1);
}
snprintf(path, PATHSIZE, "%s/%s", SECT_GROBJECTS, SECT_LIGHT);
lightNum = GfParmGetEltNb(handle, path);
for (i = 0; i < lightNum; i++) {
snprintf(path, PATHSIZE, "%s/%s/%d", SECT_GROBJECTS, SECT_LIGHT, i + 1);
lightPos[0] = GfParmGetNum(handle, path, PRM_XPOS, NULL, 0);
lightPos[1] = GfParmGetNum(handle, path, PRM_YPOS, NULL, 0);
lightPos[2] = GfParmGetNum(handle, path, PRM_ZPOS, NULL, 0);
lightType = GfParmGetStr(handle, path, PRM_TYPE, "");
lightTypeNum = LIGHT_NO_TYPE;
if (!strcmp(lightType, VAL_LIGHT_HEAD1)) {
lightTypeNum = LIGHT_TYPE_FRONT;
} else if (!strcmp(lightType, VAL_LIGHT_HEAD2)) {
lightTypeNum = LIGHT_TYPE_FRONT2;
} else if (!strcmp(lightType, VAL_LIGHT_BRAKE)) {
lightTypeNum = LIGHT_TYPE_BRAKE;
} else if (!strcmp(lightType, VAL_LIGHT_BRAKE2)) {
lightTypeNum = LIGHT_TYPE_BRAKE2;
} else if (!strcmp(lightType, VAL_LIGHT_REAR)) {
lightTypeNum = LIGHT_TYPE_REAR;
}
grAddCarlight(car, lightTypeNum, lightPos, GfParmGetNum(handle, path, PRM_SIZE, NULL, 0.2));
}
grLinkCarlights(car);
GfOut("[gr] Init(%d) car %s for driver %s index %d\n", index, car->_carName, car->_modName, car->_driverIndex);
grFilePath = (char*)malloc(BUFSIZE);
lg = 0;
lg += snprintf(grFilePath + lg, BUFSIZE - lg, "drivers/%s/%d/%s;", car->_modName, car->_driverIndex, car->_carName);
lg += snprintf(grFilePath + lg, BUFSIZE - lg, "drivers/%s/%d;", car->_modName, car->_driverIndex);
lg += snprintf(grFilePath + lg, BUFSIZE - lg, "drivers/%s/%s;", car->_modName, car->_carName);
lg += snprintf(grFilePath + lg, BUFSIZE - lg, "drivers/%s;", car->_modName);
lg += snprintf(grFilePath + lg, BUFSIZE - lg, "cars/%s", car->_carName);
param = GfParmGetStr(handle, SECT_GROBJECTS, PRM_WHEEL_TEXTURE, "");
if (strlen(param) != 0) {
grGammaValue = 1.8;
grMipMap = 0;
grCarInfo[index].wheelTexture = grSsgLoadTexState(param);
}
grCarInfo[index].envSelector = (ssgStateSelector*)grEnvSelector->clone();
grCarInfo[index].envSelector->ref();
/* the base transformation of the car (rotation + translation) */
grCarInfo[index].carTransform = new ssgTransform;
DBG_SET_NAME(grCarInfo[index].carTransform, car->_modName, index, -1);
/* Level of details */
grCarInfo[index].LODSelector = LODSel = new ssgSelector;
grCarInfo[index].carTransform->addKid(LODSel);
snprintf(path, PATHSIZE, "%s/%s", SECT_GROBJECTS, LST_RANGES);
nranges = GfParmGetEltNb(handle, path) + 1;
if (nranges < 2) {
GfOut("Error not enough levels of detail\n");
FREEZ(grFilePath);
return;
}
/* First LOD */
ssgBranch *carBody = new ssgBranch;
DBG_SET_NAME(carBody, "LOD", index, 0);
LODSel->addKid(carBody);
/* The car's model is under cars/<model> */
snprintf(buf, BUFSIZE, "cars/%s", car->_carName);
ssgModelPath(buf);
snprintf(buf, BUFSIZE, "drivers/%s/%d;drivers/%s;cars/%s", car->_modName, car->_driverIndex, car->_modName, car->_carName);
ssgTexturePath(buf);
grTexturePath = strdup(buf);
/* loading raw car level 0*/
selIndex = 0; /* current selector index */
snprintf(buf, BUFSIZE, "%s.ac", car->_carName); /* default car name */
snprintf(path, PATHSIZE, "%s/%s/1", SECT_GROBJECTS, LST_RANGES);
param = GfParmGetStr(handle, path, PRM_CAR, buf);
grCarInfo[index].LODThreshold[selIndex] = GfParmGetNum(handle, path, PRM_THRESHOLD, NULL, 0.0);
/*carEntity = ssgLoad(param);*/
carEntity = grssgCarLoadAC3D(param, NULL, index);
grCarInfo[index].carEntity = carEntity;
/* Set a selector on the driver */
char* stmp = strdup("DRIVER");
ssgBranch *b = (ssgBranch *)carEntity->getByName(stmp);
free(stmp);
grCarInfo[index].driverSelector = new ssgSelector;
if (b) {
ssgBranch *bp = b->getParent(0);
bp->addKid(grCarInfo[index].driverSelector);
grCarInfo[index].driverSelector->addKid(b);
bp->removeKid(b);
grCarInfo[index].driverSelector->select(1);
grCarInfo[index].driverSelectorinsg = true;
} else {
grCarInfo[index].driverSelectorinsg = false;
}
DBG_SET_NAME(carEntity, "Body", index, -1);
carBody->addKid(carEntity);
/* add wheels */
for (i = 0; i < 4; i++){
wheel[i] = initWheel(car, i);
carBody->addKid(wheel[i]);
}
grCarInfo[index].LODSelectMask[0] = 1 << selIndex; /* car mask */
selIndex++;
grCarInfo[index].sx=carTrackRatioX;
grCarInfo[index].sy=carTrackRatioY;
/* Other LODs */
for (i = 2; i < nranges; i++) {
carBody = new ssgBranch;
snprintf(buf, BUFSIZE, "%s/%s/%d", SECT_GROBJECTS, LST_RANGES, i);
param = GfParmGetStr(handle, buf, PRM_CAR, "");
grCarInfo[index].LODThreshold[selIndex] = GfParmGetNum(handle, buf, PRM_THRESHOLD, NULL, 0.0);
/* carEntity = ssgLoad(param); */
carEntity = grssgCarLoadAC3D(param, NULL, index);;
DBG_SET_NAME(carEntity, "LOD", index, i-1);
carBody->addKid(carEntity);
if (!strcmp(GfParmGetStr(handle, buf, PRM_WHEELSON, "no"), "yes")) {
/* add wheels */
for (j = 0; j < 4; j++){
carBody->addKid(wheel[j]);
}
}
LODSel->addKid(carBody);
grCarInfo[index].LODSelectMask[i-1] = 1 << selIndex; /* car mask */
selIndex++;
}
/* default range selection */
LODSel->select(grCarInfo[index].LODSelectMask[0]);
CarsAnchor->addKid(grCarInfo[index].carTransform);
//grCarInfo[index].carTransform->print(stdout, "-", 1);
FREEZ(grTexturePath);
FREEZ(grFilePath);
TRACE_GL("loadcar: end");
}
int
initCars(tSituation *s)
{
const int IDXSIZE = 16;
char idx[IDXSIZE];
int index;
int i;
tCarElt *elt;
void *hdle;
const int BUFSIZE = 1024;
char buf[1024];
TRACE_GL("initCars: start");
snprintf(buf, BUFSIZE, "%s%s", GetLocalDir(), GR_PARAM_FILE);
grHandle = GfParmReadFile(buf, GFPARM_RMODE_STD | GFPARM_RMODE_CREAT);
grInitCommonState();
grInitCarlight(s->_ncars);
grMaxDammage = (tdble)s->_maxDammage;
grNbCars = s->_ncars;
grCustomizePits();
grCarInfo = (tgrCarInfo*)calloc(s->_ncars, sizeof(tgrCarInfo));
for (i = 0; i < s->_ncars; i++) {
elt = s->cars[i];
/* Shadow init (Should be done before the cars for display order) */
grInitShadow(elt);
/* Skidmarks init */
grInitSkidmarks(elt);
}
grNbScreen = 0;
for (i = 0; i < s->_ncars; i++) {
elt = s->cars[i];
index = elt->index;
hdle = elt->_paramsHandle;
snprintf(idx, IDXSIZE, "Robots/index/%d", elt->_driverIndex);
grCarInfo[index].iconColor[0] = GfParmGetNum(hdle, idx, "red", (char*)NULL, 0);
grCarInfo[index].iconColor[1] = GfParmGetNum(hdle, idx, "green", (char*)NULL, 0);
grCarInfo[index].iconColor[2] = GfParmGetNum(hdle, idx, "blue", (char*)NULL, 0);
grCarInfo[index].iconColor[3] = 1.0;
grInitCar(elt);
if ((elt->_driverType == RM_DRV_HUMAN) && (grNbScreen < GR_NB_MAX_SCREEN)) {
grScreens[grNbScreen]->setCurrentCar(elt);
grNbScreen++;
}
}
if (grNbScreen == 0) {
grNbScreen = (int)GfParmGetNum(grHandle, GR_SCT_DISPMODE, GR_ATT_NB_SCREENS, NULL, 1.0);
}
for (i = 0; i < GR_NB_MAX_SCREEN; i++) {
grScreens[i]->initCams(s);
}
TRACE_GL("initCars: end");
grInitSmoke(s->_ncars);
grInitSound(s, s->_ncars);
grAdaptScreenSize();
return 0;
}
void grDrawScene(void)
{
TRACE_GL("refresh: ssgCullAndDraw start");
ssgCullAndDraw(TheScene);
TRACE_GL("refresh: ssgCullAndDraw");
}