vsimage.h File Reference

#include "vsfilesystem.h"

Go to the source code of this file.

Classes
struct	BITMAPINFOHEADER
struct	BITMAPFILEHEADER
struct	RGBQUAD
struct	pxlformat
struct	ddsHeader
struct	TPngFileBuffer
class	VSImage

Macros
#define	GL_COMPRESSED_RGB_S3TC_DXT1_EXT   0x83F0
#define	GL_COMPRESSED_RGBA_S3TC_DXT1_EXT   0x83F1
#define	GL_COMPRESSED_RGBA_S3TC_DXT3_EXT   0x83F2
#define	GL_COMPRESSED_RGBA_S3TC_DXT5_EXT   0x83F3
#define	GL_TEXTURE_COMPRESSION_HINT_ARB   0x84EF

Typedefs
typedef unsigned int	DWORD
typedef int	LONG
typedef unsigned short	WORD
typedef unsigned char	BYTE
typedef unsigned char *(	textureTransform )(int &bpp, int &color_type, unsigned long &width, unsigned long &height, unsigned char **row_pointers)

Enumerations
enum	VSImageType {   PngImage, BmpImage, JpegImage, DdsImage,   Unrecognized }

Functions
void	png_write (const char *myfile, unsigned char *data, unsigned int width, unsigned int height, bool alpha, char bpp)

Variables
int	PNG_HAS_PALETTE
int	PNG_HAS_COLOR
int	PNG_HAS_ALPHA
textureTransform	heightmapTransform
textureTransform	terrainTransform
textureTransform	texTransform

Macro Definition Documentation

#define GL_COMPRESSED_RGB_S3TC_DXT1_EXT   0x83F0

Definition at line 71 of file vsimage.h.

Referenced by GetTextureFormat(), and RGBCompressed().

#define GL_COMPRESSED_RGBA_S3TC_DXT1_EXT   0x83F1

Definition at line 74 of file vsimage.h.

Referenced by GetTextureFormat(), and RGBACompressed().

#define GL_COMPRESSED_RGBA_S3TC_DXT3_EXT   0x83F2

Definition at line 77 of file vsimage.h.

Referenced by GetTextureFormat(), and RGBACompressed().

#define GL_COMPRESSED_RGBA_S3TC_DXT5_EXT   0x83F3

Definition at line 80 of file vsimage.h.

Referenced by GetTextureFormat(), and RGBACompressed().

#define GL_TEXTURE_COMPRESSION_HINT_ARB   0x84EF

Definition at line 83 of file vsimage.h.

Typedef Documentation

typedef unsigned char BYTE

Definition at line 14 of file vsimage.h.

typedef unsigned int DWORD

Definition at line 11 of file vsimage.h.

typedef int LONG

Definition at line 12 of file vsimage.h.

typedef unsigned char*( textureTransform)(int &bpp, int &color_type, unsigned long &width, unsigned long &height, unsigned char **row_pointers)

Definition at line 117 of file vsimage.h.

typedef unsigned short WORD

Definition at line 13 of file vsimage.h.

Enumeration Type Documentation

enum VSImageType

Enumerator
PngImage
BmpImage
JpegImage
DdsImage
Unrecognized

Definition at line 125 of file vsimage.h.

{PngImage, BmpImage, JpegImage, DdsImage, Unrecognized};

Function Documentation

void png_write	(	const char *	myfile,
		unsigned char *	data,
		unsigned int	width,
		unsigned int	height,
		bool	alpha,
		char	bpp
	)

Definition at line 128 of file bmp_to_png.cpp.

References height, i, VSFileSystem::vs_close(), VSFileSystem::vs_open(), and width.

Referenced by main().

{
    FILE *fp = VSFileSystem::vs_open( myfile, "wb" );
    png_structp png_ptr = png_create_write_struct
                              ( PNG_LIBPNG_VER_STRING, (png_voidp) NULL, NULL, NULL );
    if (!png_ptr)
        return;
    png_infop info_ptr = png_create_info_struct( png_ptr );
    if (!info_ptr) {
        png_destroy_write_struct( &png_ptr, (png_infopp) NULL );
        return;
    }
    if ( setjmp( png_ptr->jmpbuf ) ) {
        png_destroy_write_struct( &png_ptr, &info_ptr );
        VSFileSystem::vs_close( fp );
        return;
    }
    png_init_io( png_ptr, fp );
    png_set_filter( png_ptr, 0, PNG_FILTER_NONE );
    png_set_compression_level( png_ptr, Z_BEST_COMPRESSION );

    /* set other zlib parameters */
    png_set_compression_mem_level( png_ptr, 8 );
    png_set_compression_strategy( png_ptr, Z_DEFAULT_STRATEGY );
    png_set_compression_window_bits( png_ptr, 15 );
    png_set_compression_method( png_ptr, 8 );

    png_set_IHDR( png_ptr,
                  info_ptr,
                  width,
                  height,
                  bpp,
                  alpha ? PNG_COLOR_TYPE_RGB_ALPHA : PNG_COLOR_TYPE_RGB,
                  PNG_INTERLACE_NONE,
                  PNG_COMPRESSION_TYPE_DEFAULT,
                  PNG_FILTER_TYPE_DEFAULT );

    png_write_info( png_ptr, info_ptr );
# if __BYTE_ORDER != __BIG_ENDIAN
    if (bpp == 16)
        png_set_swap( png_ptr );
#endif
    int stride = (bpp/8)*(alpha ? 4 : 3);
    png_byte **row_pointers = new png_byte*[height];
    for (unsigned int i = 0; i < height; i++)
        row_pointers[i] = (png_byte*) &data[stride*i*width];
    png_write_image( png_ptr, row_pointers );
    png_write_end( png_ptr, info_ptr );
    png_write_flush( png_ptr );
    png_destroy_write_struct( &png_ptr, &info_ptr );

    VSFileSystem::vs_close( fp );
    free( data );
    delete[] row_pointers;
}

Variable Documentation

textureTransform heightmapTransform

Definition at line 119 of file vsimage.h.

int PNG_HAS_ALPHA

Definition at line 58 of file vsimage.cpp.

Referenced by LoadTex(), and texTransform().

int PNG_HAS_COLOR

Definition at line 57 of file vsimage.cpp.

Referenced by LoadTex(), and texTransform().

int PNG_HAS_PALETTE

Definition at line 56 of file vsimage.cpp.

Referenced by texTransform().

textureTransform terrainTransform

Definition at line 120 of file vsimage.h.

textureTransform texTransform

Definition at line 121 of file vsimage.h.

Referenced by LoadTex().