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Code Issues Releases Activity

* displaying roads and static rivers

Browse Source 
* small bugfix in reading map
* small bugfix in lod handler
* small upgrade in def handler (should work a bit faster and better)
This commit is contained in:
mateuszb 2007-07-31 13:09:34 +00:00
parent d1615be5ec
commit 9c5bc83b16
6 changed files with 383 additions and 4 deletions
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6
CAmbarCendamo.cpp
View File

@ -564,7 +564,11 @@ void CAmbarCendamo::deh3m()
spec->bytes[2] = bufor[i]; ++i;
spec->bytes[3] = bufor[i]; ++i;
spec->player = bufor[i]; ++i;
spec->type = CGameInfo::mainObj->heroh->heroes[readNormalNr(i, 1)]; ++i;
int typeBuf = readNormalNr(i, 1); ++i;
if(typeBuf==0xff)
spec->type = NULL;
else
spec->type = CGameInfo::mainObj->heroh->heroes[typeBuf];
bool isName = bufor[i]; ++i; //true if hero has nonstandard name
if(isName)
{

BIN
CDefHandler.cpp
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Binary file not shown.

1
CLodHandler.cpp
View File

@ -385,6 +385,7 @@ int CLodHandler::infm(FILE *source, FILE *dest, int wBits)
}
CDefHandler * CLodHandler::giveDef(std::string defName)
{
std::transform(defName.begin(), defName.end(), defName.begin(), (int(*)(int))toupper);
Entry * ourEntry = entries.znajdz(Entry(defName));
CDefHandler * ret;
FLOD.seekg(ourEntry->offset,std::ios_base::beg);

2
global.h
View File

@ -10,7 +10,7 @@
#endif
enum Ecolor {RED, BLUE, TAN, GREEN, ORANGE, PURPLE, TEAL, PINK};
enum EterrainType {dirt, sand, grass, snow, swamp, rough, subterranean, lava, water, rock};
enum Eriver {clearRiver=1, icyRiver, muddyRiver, lavaRiver};
enum Eriver {noRiver=0, clearRiver, icyRiver, muddyRiver, lavaRiver};
enum Eroad {dirtRoad=1, grazvelRoad, cobblestoneRoad};
enum Eformat { WoG=0x33, AB=0x15, RoE=0x0e, SoD=0x1c};
enum EvictoryConditions {artifact, gatherTroop, gatherResource, buildCity, buildGrail, beatHero,

371
mapHandler.cpp
View File

@ -75,7 +75,327 @@ void CMapHandler::init()
visibility[7][6] = false;
visibility[6][9] = false;
terrainBitmap = new SDL_Surface **[reader->map.width+8];
//initializing road's and river's DefHandlers
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
int rmask = 0xff000000;
int gmask = 0x00ff0000;
int bmask = 0x0000ff00;
int amask = 0x000000ff;
#else
int rmask = 0x000000ff;
int gmask = 0x0000ff00;
int bmask = 0x00ff0000;
int amask = 0xff000000;
#endif
SDL_Surface * su = SDL_CreateRGBSurface(SDL_SWSURFACE, 32, 32, 32,
rmask, gmask, bmask, amask);
roadDefs.push_back(CGameInfo::mainObj->spriteh->giveDef("dirtrd.def"));
roadDefs.push_back(CGameInfo::mainObj->spriteh->giveDef("gravrd.def"));
roadDefs.push_back(CGameInfo::mainObj->spriteh->giveDef("cobbrd.def"));
staticRiverDefs.push_back(CGameInfo::mainObj->spriteh->giveDef("clrrvr.def"));
staticRiverDefs.push_back(CGameInfo::mainObj->spriteh->giveDef("icyrvr.def"));
staticRiverDefs.push_back(CGameInfo::mainObj->spriteh->giveDef("mudrvr.def"));
staticRiverDefs.push_back(CGameInfo::mainObj->spriteh->giveDef("lavrvr.def"));
roadBitmaps = new SDL_Surface **[reader->map.width+2*Woff];
for (int ii=0;ii<reader->map.width+2*Woff;ii++)
roadBitmaps[ii] = new SDL_Surface*[reader->map.height+2*Hoff]; // allocate memory
for (int i=0; i<reader->map.width+2*Woff; i++) //jest po szerokoœci
{
for (int j=0; j<reader->map.height+2*Hoff;j++) //po wysokoœci
{
if(i<Woff || i>reader->map.width+Woff-1 || j<Woff || j>reader->map.height+Hoff-1)
roadBitmaps[i][j] = NULL;
else
{
if(reader->map.terrain[i-Woff][j-Hoff].malle)
{
roadBitmaps[i][j] = roadDefs[reader->map.terrain[i-Woff][j-Hoff].malle-1]->ourImages[reader->map.terrain[i-Woff][j-Hoff].roadDir].bitmap;
int cDir = reader->map.terrain[i-Woff][j-Hoff].roadDir;
if(cDir==0 || cDir==1 || cDir==2 || cDir==3 || cDir==4 || cDir==5)
{
if(i-Woff+1<reader->map.width && j-Hoff-1>0 && reader->map.terrain[i-Woff+1][j-Hoff].malle && reader->map.terrain[i-Woff][j-Hoff-1].malle)
{
roadBitmaps[i][j] = CSDL_Ext::hFlip(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::alphaTransform(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(roadBitmaps[i][j], su);
}
if(i-Woff-1>0 && j-Hoff-1>0 && reader->map.terrain[i-Woff-1][j-Hoff].malle && reader->map.terrain[i-Woff][j-Hoff-1].malle)
{
roadBitmaps[i][j] = CSDL_Ext::rotate03(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::alphaTransform(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(roadBitmaps[i][j], su);
}
if(i-Woff-1>0 && j-Hoff+1<reader->map.height && reader->map.terrain[i-Woff-1][j-Hoff].malle && reader->map.terrain[i-Woff][j-Hoff+1].malle)
{
roadBitmaps[i][j] = CSDL_Ext::rotate01(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::alphaTransform(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(roadBitmaps[i][j], su);
}
}
if(cDir==8 || cDir==9)
{
if(j-Hoff+1<reader->map.height && !(reader->map.terrain[i-Woff][j-Hoff+1].malle))
{
roadBitmaps[i][j] = CSDL_Ext::hFlip(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::alphaTransform(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(roadBitmaps[i][j], su);
}
}
if(cDir==6 || cDir==7)
{
if(i-Woff+1<reader->map.width && !(reader->map.terrain[i-Woff+1][j-Hoff].malle))
{
roadBitmaps[i][j] = CSDL_Ext::rotate01(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::alphaTransform(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(roadBitmaps[i][j], su);
}
}
if(cDir==0x0e)
{
if(j-Hoff+1<reader->map.height && !(reader->map.terrain[i-Woff][j-Hoff+1].malle))
{
roadBitmaps[i][j] = CSDL_Ext::hFlip(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::alphaTransform(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(roadBitmaps[i][j], su);
}
}
if(cDir==0x0f)
{
if(i-Woff+1<reader->map.width && !(reader->map.terrain[i-Woff+1][j-Hoff].malle))
{
roadBitmaps[i][j] = CSDL_Ext::rotate01(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::alphaTransform(roadBitmaps[i][j]);
roadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(roadBitmaps[i][j], su);
}
}
}
else
roadBitmaps[i][j] = NULL;
}
}
}
undRoadBitmaps = new SDL_Surface **[reader->map.width+2*Woff];
for (int ii=0;ii<reader->map.width+2*Woff;ii++)
undRoadBitmaps[ii] = new SDL_Surface*[reader->map.height+2*Hoff]; // allocate memory
if(reader->map.twoLevel)
{
for (int i=0; i<reader->map.width+2*Woff; i++) //jest po szerokoœci
{
for (int j=0; j<reader->map.height+2*Hoff;j++) //po wysokoœci
{
if(i<Woff || i>reader->map.width+Woff-1 || j<Woff || j>reader->map.height+Hoff-1)
undRoadBitmaps[i][j] = NULL;
else
{
if(reader->map.terrain[i-Woff][j-Hoff].malle)
{
undRoadBitmaps[i][j] = roadDefs[reader->map.undergroungTerrain[i-Woff][j-Hoff].malle-1]->ourImages[reader->map.undergroungTerrain[i-Woff][j-Hoff].roadDir].bitmap;
int cDir = reader->map.terrain[i-Woff][j-Hoff].roadDir;
if(cDir==0 || cDir==1 || cDir==2 || cDir==3 || cDir==4 || cDir==5)
{
if(i-Woff+1<reader->map.width && j-Hoff-1>0 && reader->map.undergroungTerrain[i-Woff+1][j-Hoff].malle && reader->map.undergroungTerrain[i-Woff][j-Hoff-1].malle)
{
undRoadBitmaps[i][j] = CSDL_Ext::hFlip(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::alphaTransform(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undRoadBitmaps[i][j], su);
}
if(i-Woff-1>0 && j-Hoff-1>0 && reader->map.undergroungTerrain[i-Woff-1][j-Hoff].malle && reader->map.undergroungTerrain[i-Woff][j-Hoff-1].malle)
{
undRoadBitmaps[i][j] = CSDL_Ext::rotate03(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::alphaTransform(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undRoadBitmaps[i][j], su);
}
if(i-Woff-1>0 && j-Hoff+1<reader->map.height && reader->map.undergroungTerrain[i-Woff-1][j-Hoff].malle && reader->map.undergroungTerrain[i-Woff][j-Hoff+1].malle)
{
undRoadBitmaps[i][j] = CSDL_Ext::rotate01(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::alphaTransform(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undRoadBitmaps[i][j], su);
}
}
if(cDir==8 || cDir==9)
{
if(j-Hoff+1<reader->map.height && !(reader->map.undergroungTerrain[i-Woff][j-Hoff+1].malle))
{
undRoadBitmaps[i][j] = CSDL_Ext::hFlip(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::alphaTransform(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undRoadBitmaps[i][j], su);
}
}
if(cDir==6 || cDir==7)
{
if(i-Woff+1<reader->map.width && !(reader->map.undergroungTerrain[i-Woff+1][j-Hoff].malle))
{
undRoadBitmaps[i][j] = CSDL_Ext::rotate01(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::alphaTransform(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undRoadBitmaps[i][j], su);
}
}
if(cDir==0x0e)
{
if(j-Hoff+1<reader->map.height && !(reader->map.undergroungTerrain[i-Woff][j-Hoff+1].malle))
{
undRoadBitmaps[i][j] = CSDL_Ext::hFlip(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::alphaTransform(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undRoadBitmaps[i][j], su);
}
}
if(cDir==0x0f)
{
if(i-Woff+1<reader->map.width && !(reader->map.undergroungTerrain[i-Woff+1][j-Hoff].malle))
{
undRoadBitmaps[i][j] = CSDL_Ext::rotate01(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::alphaTransform(undRoadBitmaps[i][j]);
undRoadBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undRoadBitmaps[i][j], su);
}
}
}
else
undRoadBitmaps[i][j] = NULL;
}
}
}
}
staticRiverBitmaps = new SDL_Surface **[reader->map.width+2*Woff];
for (int ii=0;ii<reader->map.width+2*Woff;ii++)
staticRiverBitmaps[ii] = new SDL_Surface*[reader->map.height+2*Hoff]; // allocate memory
for (int i=0; i<reader->map.width+2*Woff; i++) //jest po szerokoœci
{
for (int j=0; j<reader->map.height+2*Hoff;j++) //po wysokoœci
{
if(i<Woff || i>reader->map.width+Woff-1 || j<Woff || j>reader->map.height+Hoff-1)
staticRiverBitmaps[i][j] = NULL;
else
{
if(reader->map.terrain[i-Woff][j-Hoff].nuine)
{
staticRiverBitmaps[i][j] = staticRiverDefs[reader->map.terrain[i-Woff][j-Hoff].nuine-1]->ourImages[reader->map.terrain[i-Woff][j-Hoff].rivDir].bitmap;
int cDir = reader->map.terrain[i-Woff][j-Hoff].rivDir;
if(cDir==0 || cDir==1 || cDir==2 || cDir==3)
{
if(i-Woff+1<reader->map.width && j-Hoff-1>0 && reader->map.terrain[i-Woff+1][j-Hoff].nuine && reader->map.terrain[i-Woff][j-Hoff-1].nuine)
{
staticRiverBitmaps[i][j] = CSDL_Ext::hFlip(staticRiverBitmaps[i][j]);
staticRiverBitmaps[i][j] = CSDL_Ext::alphaTransform(staticRiverBitmaps[i][j]);
staticRiverBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(staticRiverBitmaps[i][j], su);
}
if(i-Woff-1>0 && j-Hoff-1>0 && reader->map.terrain[i-Woff-1][j-Hoff].nuine && reader->map.terrain[i-Woff][j-Hoff-1].nuine)
{
staticRiverBitmaps[i][j] = CSDL_Ext::rotate03(staticRiverBitmaps[i][j]);
staticRiverBitmaps[i][j] = CSDL_Ext::alphaTransform(staticRiverBitmaps[i][j]);
staticRiverBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(staticRiverBitmaps[i][j], su);
}
if(i-Woff-1>0 && j-Hoff+1<reader->map.height && reader->map.terrain[i-Woff-1][j-Hoff].nuine && reader->map.terrain[i-Woff][j-Hoff+1].nuine)
{
staticRiverBitmaps[i][j] = CSDL_Ext::rotate01(staticRiverBitmaps[i][j]);
staticRiverBitmaps[i][j] = CSDL_Ext::alphaTransform(staticRiverBitmaps[i][j]);
staticRiverBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(staticRiverBitmaps[i][j], su);
}
}
if(cDir==5 || cDir==6)
{
if(j-Hoff+1<reader->map.height && !(reader->map.terrain[i-Woff][j-Hoff+1].nuine))
{
staticRiverBitmaps[i][j] = CSDL_Ext::hFlip(staticRiverBitmaps[i][j]);
staticRiverBitmaps[i][j] = CSDL_Ext::alphaTransform(staticRiverBitmaps[i][j]);
staticRiverBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(staticRiverBitmaps[i][j], su);
}
}
if(cDir==7 || cDir==8)
{
if(i-Woff+1<reader->map.width && !(reader->map.terrain[i-Woff+1][j-Hoff].nuine))
{
staticRiverBitmaps[i][j] = CSDL_Ext::rotate01(staticRiverBitmaps[i][j]);
staticRiverBitmaps[i][j] = CSDL_Ext::alphaTransform(staticRiverBitmaps[i][j]);
staticRiverBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(staticRiverBitmaps[i][j], su);
}
}
}
else
staticRiverBitmaps[i][j] = NULL;
}
}
}
undStaticRiverBitmaps = new SDL_Surface **[reader->map.width+2*Woff];
for (int ii=0;ii<reader->map.width+2*Woff;ii++)
undStaticRiverBitmaps[ii] = new SDL_Surface*[reader->map.height+2*Hoff]; // allocate memory
if(reader->map.twoLevel)
{
for (int i=0; i<reader->map.width+2*Woff; i++) //jest po szerokoœci
{
for (int j=0; j<reader->map.height+2*Hoff;j++) //po wysokoœci
{
if(i<Woff || i>reader->map.width+Woff-1 || j<Woff || j>reader->map.height+Hoff-1)
undStaticRiverBitmaps[i][j] = NULL;
else
{
if(reader->map.undergroungTerrain[i-Woff][j-Hoff].nuine)
{
undStaticRiverBitmaps[i][j] = staticRiverDefs[reader->map.undergroungTerrain[i-Woff][j-Hoff].nuine-1]->ourImages[reader->map.undergroungTerrain[i-Woff][j-Hoff].rivDir].bitmap;
int cDir = reader->map.undergroungTerrain[i-Woff][j-Hoff].rivDir;
if(cDir==0 || cDir==1 || cDir==2 || cDir==3)
{
if(i-Woff+1<reader->map.width && j-Hoff-1>0 && reader->map.undergroungTerrain[i-Woff+1][j-Hoff].nuine && reader->map.undergroungTerrain[i-Woff][j-Hoff-1].nuine)
{
undStaticRiverBitmaps[i][j] = CSDL_Ext::hFlip(undStaticRiverBitmaps[i][j]);
undStaticRiverBitmaps[i][j] = CSDL_Ext::alphaTransform(undStaticRiverBitmaps[i][j]);
undStaticRiverBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undStaticRiverBitmaps[i][j], su);
}
if(i-Woff-1>0 && j-Hoff-1>0 && reader->map.undergroungTerrain[i-Woff-1][j-Hoff].nuine && reader->map.undergroungTerrain[i-Woff][j-Hoff-1].nuine)
{
undStaticRiverBitmaps[i][j] = CSDL_Ext::rotate03(undStaticRiverBitmaps[i][j]);
undStaticRiverBitmaps[i][j] = CSDL_Ext::alphaTransform(undStaticRiverBitmaps[i][j]);
undStaticRiverBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undStaticRiverBitmaps[i][j], su);
}
if(i-Woff-1>0 && j-Hoff+1<reader->map.height && reader->map.undergroungTerrain[i-Woff-1][j-Hoff].nuine && reader->map.undergroungTerrain[i-Woff][j-Hoff+1].nuine)
{
undStaticRiverBitmaps[i][j] = CSDL_Ext::rotate01(undStaticRiverBitmaps[i][j]);
undStaticRiverBitmaps[i][j] = CSDL_Ext::alphaTransform(undStaticRiverBitmaps[i][j]);
undStaticRiverBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undStaticRiverBitmaps[i][j], su);
}
}
if(cDir==5 || cDir==6)
{
if(j-Hoff+1<reader->map.height && !(reader->map.undergroungTerrain[i-Woff][j-Hoff+1].nuine))
{
undStaticRiverBitmaps[i][j] = CSDL_Ext::hFlip(undStaticRiverBitmaps[i][j]);
undStaticRiverBitmaps[i][j] = CSDL_Ext::alphaTransform(undStaticRiverBitmaps[i][j]);
undStaticRiverBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undStaticRiverBitmaps[i][j], su);
}
}
if(cDir==7 || cDir==8)
{
if(i-Woff+1<reader->map.width && !(reader->map.undergroungTerrain[i-Woff+1][j-Hoff].nuine))
{
undStaticRiverBitmaps[i][j] = CSDL_Ext::rotate01(undStaticRiverBitmaps[i][j]);
undStaticRiverBitmaps[i][j] = CSDL_Ext::alphaTransform(undStaticRiverBitmaps[i][j]);
undStaticRiverBitmaps[i][j] = CSDL_Ext::secondAlphaTransform(undStaticRiverBitmaps[i][j], su);
}
}
}
else
undStaticRiverBitmaps[i][j] = NULL;
}
}
}
}
SDL_FreeSurface(su);
//road's and river's DefHandlers initialized
terrainBitmap = new SDL_Surface **[reader->map.width+2*Woff];
for (int ii=0;ii<reader->map.width+2*Woff;ii++)
terrainBitmap[ii] = new SDL_Surface*[reader->map.height+2*Hoff]; // allocate memory
CDefHandler * bord = CGameInfo::mainObj->spriteh->giveDef("EDG.DEF");
@ -311,7 +631,54 @@ SDL_Surface * CMapHandler::terrainRect(int x, int y, int dx, int dy, int level,
delete sr;
}
}
////terrain printed; printing objects
////terrain printed
////printing rivers
for (int bx=0; bx<dx; bx++)
{
for (int by=0; by<dy; by++)
{
SDL_Rect * sr = new SDL_Rect;
sr->y=by*32;
sr->x=bx*32;
sr->h=sr->w=32;
if (!level)
{
if(staticRiverBitmaps[bx+x][by+y])
SDL_BlitSurface(staticRiverBitmaps[bx+x][by+y],NULL,su,sr);
}
else
{
if(undStaticRiverBitmaps[bx+x][by+y])
SDL_BlitSurface(undStaticRiverBitmaps[bx+x][by+y],NULL,su,sr);
}
delete sr;
}
}
////rivers printed
////printing roads
for (int bx=0; bx<dx; bx++)
{
for (int by=0; by<dy; by++)
{
SDL_Rect * sr = new SDL_Rect;
sr->y=by*32;
sr->x=bx*32;
sr->h=sr->w=32;
if (!level)
{
if(roadBitmaps[bx+x][by+y])
SDL_BlitSurface(roadBitmaps[bx+x][by+y],NULL,su,sr);
}
else
{
if(undRoadBitmaps[bx+x][by+y])
SDL_BlitSurface(undRoadBitmaps[bx+x][by+y],NULL,su,sr);
}
delete sr;
}
}
////roads printed
////printing objects
std::vector<ObjSorter> lowPrObjs;
std::vector<ObjSorter> highPrObjs;
std::vector<ObjSorter> highPrObjsVis;

7
mapHandler.h
View File

@ -4,6 +4,7 @@
#include "CAmbarCendamo.h"
#include "CSemiDefHandler.h"
#include "CGameInfo.h"
#include "CDefHandler.h"
const int Woff = 4; //width of map's frame
const int Hoff = 4;
@ -29,6 +30,12 @@ public:
std::vector< std::vector<char> > visibility; //true means that pointed place is visible
std::vector< std::vector<char> > undVisibility; //true means that pointed place is visible
std::vector<CDefHandler *> roadDefs;
std::vector<CDefHandler *> staticRiverDefs;
SDL_Surface *** roadBitmaps;
SDL_Surface *** undRoadBitmaps;
SDL_Surface *** staticRiverBitmaps;
SDL_Surface *** undStaticRiverBitmaps;
char & visAccess(int x, int y);
char & undVisAccess(int x, int y);
SDL_Surface mirrorImage(SDL_Surface *src); //what is this??