Source/Texture.cpp

   1 #include "gamegl.h"
   2 #include "Texture.h"
   3 #include "TGALoader.h"
   4
   5 using namespace std;
   6
   7 map<string,Texture> Texture::textures;
   8
   9 extern TGAImageRec texture;
  10 extern bool trilinear;
  11
  12 void Texture::load()  {
  13         GLuint type;
  14
  15         LOGFUNC;
  16
  17         LOG(std::string("Loading texture...") + fileName);
  18
  19         unsigned char fileNamep[256];
  20         CopyCStringToPascal(ConvertFileName(fileName.c_str()), fileNamep);
  21         //Load Image
  22         upload_image( fileNamep ,hasalpha);
  23
  24         //Alpha channel?
  25         if ( texture.bpp == 24 )
  26                 type = GL_RGB;
  27         else
  28                 type = GL_RGBA;
  29
  30         glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
  31
  32         if(!id)
  33                 glGenTextures( 1, &id );
  34         glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
  35
  36         glBindTexture( GL_TEXTURE_2D, id);
  37         glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
  38         if(mipmap)
  39                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (trilinear?GL_LINEAR_MIPMAP_LINEAR:GL_LINEAR_MIPMAP_NEAREST) );
  40         else
  41                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
  42
  43         skinsize=texture.sizeX;
  44
  45         if(isSkin) {
  46                 int tempnum=0;
  47                 int nb = (texture.sizeY*texture.sizeX*(texture.bpp/8));
  48                 array = (GLubyte*)malloc(nb*sizeof(GLubyte));
  49                 for(int i=0;i<nb;i++) {
  50                         if((i+1)%4||type==GL_RGB) {
  51                                 array[tempnum]=texture.data[i];
  52                                 tempnum++;
  53                         }
  54                 }
  55                 arraySize=tempnum;
  56
  57                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, GL_RGB, GL_UNSIGNED_BYTE, array );
  58         } else {
  59                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, type, GL_UNSIGNED_BYTE, texture.data );
  60         }
  61 }
  62
  63 GLuint Texture::Load(const string& fileName, bool mipmap, bool hasalpha) {
  64         map<string,Texture>::iterator it = textures.find(fileName);
  65         if(it==textures.end()) {
  66                 textures.insert(make_pair(fileName,Texture(fileName,mipmap,hasalpha)));
  67                 textures[fileName].load();
  68                 return textures[fileName].getId();
  69         } else {
  70                 return it->second.getId();
  71         }
  72 }
  73
  74 GLuint Texture::Load(const string& fileName, bool mipmap, bool hasalpha, GLubyte* array, int* skinsize) {
  75         map<string,Texture>::iterator it = textures.find(fileName);
  76         if(it==textures.end()) {
  77                 textures.insert(make_pair(fileName,Texture(fileName,mipmap,hasalpha,true)));
  78                 textures[fileName].load();
  79                 *skinsize = textures[fileName].skinsize;
  80                 for(int i=0;i<textures[fileName].arraySize;i++) {
  81                         array[i] = textures[fileName].array[i];
  82                 }
  83                 return textures[fileName].getId();
  84         } else {
  85                 *skinsize = it->second.skinsize;
  86                 for(int i=0;i<it->second.arraySize;i++) {
  87                         array[i] = it->second.array[i];
  88                 }
  89                 return it->second.getId();
  90         }
  91 }
  92