dxt_common.h

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#ifndef DXT_COMMON_H
#define DXT_COMMON_H
 
#ifdef HAVE_CONFIG_H
#include "config.h"
#include "config_unix.h"
#include "config_win32.h"
#else
#define DXT_COMPRESS_STANDALONE
#endif
 
#ifdef DXT_COMPRESS_STANDALONE
#include <GL/glew.h>
#include <GL/glut.h>
#endif
 
 
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <sys/time.h>
 
#define TIMER_INIT() \
    struct timeval __start, __stop; \
    long __seconds, __useconds; \
    float __elapsedTime;
#define TIMER_START() \
    gettimeofday(&__start, NULL);
#define TIMER_STOP() \
    gettimeofday(&__stop, NULL); \
    __seconds  = __stop.tv_sec  - __start.tv_sec; \
    __useconds = __stop.tv_usec - __start.tv_usec; \
    __elapsedTime = ((__seconds) * 1000.0 + __useconds/1000.0) + 0.5;
#define TIMER_DURATION() __elapsedTime
#define TIMER_STOP_PRINT(text) \
    TIMER_STOP(); \
    printf("%s %f ms\n", text, __elapsedTime)
 
#define DXT_IMAGE_TYPE      unsigned char
#define DXT_IMAGE_GL_TYPE   GL_UNSIGNED_INT_8_8_8_8_REV
#define DXT_IMAGE_GL_FORMAT GL_RGBA
 
enum dxt_format {
    DXT_FORMAT_RGB,
    DXT_FORMAT_RGBA,
    DXT_FORMAT_YUV,
    DXT_FORMAT_YUV422
};
 
enum dxt_type {
    DXT_TYPE_DXT1,
    DXT_TYPE_DXT1_YUV,
    DXT_TYPE_DXT5_YCOCG
};
 
int
dxt_init();
 
int
dxt_image_load_from_file(const char* filename, int width, int height, DXT_IMAGE_TYPE** image);
 
int
dxt_image_save_to_file(const char* filename, DXT_IMAGE_TYPE* image, int width, int height);
 
int
dxt_image_compressed_load_from_file(const char* filename, unsigned char** data, int* data_size);
 
int
dxt_image_compressed_save_to_file(const char* filename, unsigned char* image, int image_size);
 
int
dxt_image_destroy(DXT_IMAGE_TYPE* image);
 
int
dxt_image_compressed_destroy(unsigned char* image_compressed);
 
#endif // DXT_COMMON_H