tga.h

#pragma once
 
#include <common.h>
 
enum {
    TGA_MODE_NO_IMG = 0,    
    TGA_MODE_UC_CMI = 1,    
    TGA_MODE_UC_RGB = 2,    
    TGA_MODE_UC_BWI = 3,    
    TGA_MODE_RL_CMI = 9,    
    TGA_MODE_RL_RGB = 10,   
    TGA_MODE_CP_BWI = 11,   
    TGA_MODE_CP_HDR = 32,   
    TGA_MODE_UC_PQR = 33,   
};
 
typedef struct {
  unsigned char image_id;             // must be zero
  unsigned char colormap;           // must be zero
  unsigned char image_type;           // must be 2
  unsigned short cmaporig;
  unsigned short cmaplen; // must be zero
  unsigned char cmapent;            // must be zero
  unsigned short x;                 // what
  unsigned short y;                 // what
  unsigned short w;                 // image's width
  unsigned short h;                 // image's height
  unsigned char bpp;                // must be 32
  unsigned char image_descriptor;          // must be 40
} __attribute__((packed)) tga_header_t;
 
bool tga_extract_info(const char* path, tga_header_t* out_meta);
int tga_extract_pixels(const char* path, uint32_t* pixel_buf);
int tga_extract_pixels_from_data(const char* raw_data, uint32_t* pixel_buf);