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 Texture::~Texture()  {
  13         free(array);
  14     glDeleteTextures(1,&id);
  15 }
  16
  17 void Texture::load()  {
  18         GLuint type;
  19
  20         LOGFUNC;
  21
  22         LOG(std::string("Loading texture...") + fileName);
  23
  24         unsigned char fileNamep[256];
  25         CopyCStringToPascal(ConvertFileName(fileName.c_str()), fileNamep);
  26         //Load Image
  27         upload_image( fileNamep ,hasalpha);
  28
  29         //Alpha channel?
  30         if ( texture.bpp == 24 )
  31                 type = GL_RGB;
  32         else
  33                 type = GL_RGBA;
  34
  35         glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
  36
  37         if(!id)
  38                 glGenTextures( 1, &id );
  39         glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
  40
  41         glBindTexture( GL_TEXTURE_2D, id);
  42         glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
  43         if(mipmap)
  44                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, (trilinear?GL_LINEAR_MIPMAP_LINEAR:GL_LINEAR_MIPMAP_NEAREST) );
  45         else
  46                 glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
  47
  48         skinsize=texture.sizeX;
  49
  50         if(isSkin) {
  51                 int tempnum=0;
  52                 int nb = (texture.sizeY*texture.sizeX*(texture.bpp/8));
  53                 array = (GLubyte*)malloc(nb*sizeof(GLubyte));
  54                 for(int i=0;i<nb;i++) {
  55                         if((i+1)%4||type==GL_RGB) {
  56                                 array[tempnum]=texture.data[i];
  57                                 tempnum++;
  58                         }
  59                 }
  60                 arraySize=tempnum;
  61
  62                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, GL_RGB, GL_UNSIGNED_BYTE, array );
  63         } else {
  64                 gluBuild2DMipmaps( GL_TEXTURE_2D, type, texture.sizeX, texture.sizeY, type, GL_UNSIGNED_BYTE, texture.data );
  65         }
  66 }
  67
  68 GLuint Texture::Load(const string& fileName, bool mipmap, bool hasalpha) {
  69         map<string,Texture>::iterator it = textures.find(fileName);
  70         if(it==textures.end()) {
  71                 textures.insert(make_pair(fileName,Texture(fileName,mipmap,hasalpha)));
  72                 textures[fileName].load();
  73                 return textures[fileName].getId();
  74         } else {
  75                 return it->second.getId();
  76         }
  77 }
  78
  79 GLuint Texture::Load(const string& fileName, bool mipmap, bool hasalpha, GLubyte* array, int* skinsize) {
  80         map<string,Texture>::iterator it = textures.find(fileName);
  81         if(it==textures.end()) {
  82                 textures.insert(make_pair(fileName,Texture(fileName,mipmap,hasalpha,true)));
  83                 textures[fileName].load();
  84                 *skinsize = textures[fileName].skinsize;
  85                 for(int i=0;i<textures[fileName].arraySize;i++) {
  86                         array[i] = textures[fileName].array[i];
  87                 }
  88                 return textures[fileName].getId();
  89         } else {
  90                 *skinsize = it->second.skinsize;
  91                 for(int i=0;i<it->second.arraySize;i++) {
  92                         array[i] = it->second.array[i];
  93                 }
  94                 return it->second.getId();
  95         }
  96 }
  97