diff options
Diffstat (limited to 'src/TGALoader.cpp')
| -rw-r--r-- | src/TGALoader.cpp | 29 |
1 files changed, 14 insertions, 15 deletions
diff --git a/src/TGALoader.cpp b/src/TGALoader.cpp index 27fd5b9..ea26920 100644 --- a/src/TGALoader.cpp +++ b/src/TGALoader.cpp @@ -1,10 +1,9 @@ /**> HEADER FILES <**/ #include "TGALoader.h" - /********************> LoadTGA() <*****/ TGAImageRec* LoadTGA( char *filename ) -{ +{ GLubyte TGAheader[12]={0,0,2,0,0,0,0,0,0,0,0,0}; // Uncompressed TGA Header GLubyte TGAcompare[12]; // Used To Compare TGA Header GLubyte header[6]; // First 6 Useful Bytes From The Header @@ -13,7 +12,7 @@ TGAImageRec* LoadTGA( char *filename ) GLuint temp; // Temporary Variable TGAImageRec *texture; FILE *file; - + // Open The TGA File file = cfh_fopen( filename, "rb" ); @@ -26,14 +25,14 @@ TGAImageRec* LoadTGA( char *filename ) fclose( file ); return NULL; } - + // Create a new RGBAImageRec texture = ( TGAImageRec* )malloc( sizeof( TGAImageRec ) ); - + // Determine the TGA width (highbyte*256+lowbyte) and height (highbyte*256+lowbyte) texture->sizeX = header[1] * 256 + header[0]; texture->sizeY = header[3] * 256 + header[2]; - + // Make sure the height, width, and bit depth are valid if( ( texture->sizeX <= 0 ) || ( texture->sizeY <= 0 ) || ( ( header[4] != 24 ) && ( header[4] != 32 ) ) ) { @@ -42,17 +41,17 @@ TGAImageRec* LoadTGA( char *filename ) free( texture ); return NULL; } - + // Grab The TGA's Bits Per Pixel (24 or 32) - texture->bpp = header[4]; + texture->bpp = header[4]; bytesPerPixel = texture->bpp/8; // Divide By 8 To Get The Bytes Per Pixel - + // Calculate The Memory Required For The TGA Data imageSize = texture->sizeX * texture->sizeY * bytesPerPixel; - + // Reserve Memory To Hold The TGA Data - texture->data = ( GLubyte* )malloc( imageSize ); - + texture->data = ( GLubyte* )malloc( imageSize ); + // Make sure the right amount of memory was allocated if( ( texture->data == NULL ) || ( fread( texture->data, 1, imageSize, file ) != imageSize ) ) { @@ -65,7 +64,7 @@ TGAImageRec* LoadTGA( char *filename ) free( texture ); return NULL; } - + // Loop Through The Image Data for( GLuint i = 0; i < int( imageSize ); i += bytesPerPixel ) { @@ -74,9 +73,9 @@ TGAImageRec* LoadTGA( char *filename ) texture->data[i] = texture->data[i + 2]; // Set The 1st Byte To The Value Of The 3rd Byte texture->data[i + 2] = temp; // Set The 3rd Byte To The Value In 'temp' (1st Byte Value) } - + // Close The File fclose( file ); - + return texture; } |