Added support for the TGA file format in the codec

This commit is contained in:
Francois-Olivier Devaux 2007-08-20 15:20:42 +00:00
parent 7dcb817e6a
commit 8298fd2b0a
6 changed files with 345 additions and 20 deletions

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@ -5,6 +5,9 @@ What's New for OpenJPEG
! : changed
+ : added
August 20, 2008
+ [FOD] Added support for the TGA file format in the codec
August 08, 2008
* [Parvatha] Fixed the DCinema filesize allocation. It now includes the SOT marker size

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@ -251,7 +251,7 @@ found:
}// end of single character
}//end '-'
fprintf(stderr,"Invalid option %s\n");
fprintf(stderr,"Invalid option\n");
++optind;
return (BADCH);;
}//end function

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@ -67,6 +67,300 @@ static int int_ceildiv(int a, int b) {
return (a + b - 1) / b;
}
/* -->> -->> -->> -->>
TGA IMAGE FORMAT
<<-- <<-- <<-- <<-- */
// TGA header definition.
#pragma pack(push,1) // Pack structure byte aligned
typedef struct tga_header
{
uint8 id_length; /* Image id field length */
uint8 colour_map_type; /* Colour map type */
uint8 image_type; /* Image type */
/*
** Colour map specification
*/
uint16 colour_map_index; /* First entry index */
uint16 colour_map_length; /* Colour map length */
uint8 colour_map_entry_size; /* Colour map entry size */
/*
** Image specification
*/
uint16 x_origin; /* x origin of image */
uint16 y_origin; /* u origin of image */
uint16 image_width; /* Image width */
uint16 image_height; /* Image height */
uint8 pixel_depth; /* Pixel depth */
uint8 image_desc; /* Image descriptor */
} tga_header;
#pragma pack(pop) // Return to normal structure packing alignment.
int tga_readheader(FILE *fp, int *bits_per_pixel, int *width, int *height, int *flip_image)
{
int palette_size;
tga_header tga ;
if (!bits_per_pixel || !width || !height || !flip_image)
return 0;
// Read TGA header
fread((uint8*)&tga, sizeof(tga_header), 1, fp);
*bits_per_pixel = tga.pixel_depth;
*width = tga.image_width;
*height = tga.image_height ;
// Ignore tga identifier, if present ...
if (tga.id_length)
{
uint8 *id = (uint8 *) malloc(tga.id_length);
fread(id, tga.id_length, 1, fp);
free(id);
}
// Test for compressed formats ... not yet supported ...
// Note :- 9 - RLE encoded palettized.
// 10 - RLE encoded RGB.
if (tga.image_type > 8)
{
fprintf(stderr, "Sorry, compressed tga files are not currently supported.\n");
return 0 ;
}
*flip_image = !(tga.image_desc & 32);
// Palettized formats are not yet supported, skip over the palette, if present ...
palette_size = tga.colour_map_length * (tga.colour_map_entry_size/8);
if (palette_size>0)
{
fprintf(stderr, "File contains a palette - not yet supported.");
fseek(fp, palette_size, SEEK_CUR);
}
return 1;
}
int tga_writeheader(FILE *fp, int bits_per_pixel, int width, int height, bool flip_image)
{
tga_header tga;
if (!bits_per_pixel || !width || !height)
return 0;
memset(&tga, 0, sizeof(tga_header));
tga.pixel_depth = bits_per_pixel;
tga.image_width = width;
tga.image_height = height;
tga.image_type = 2; // Uncompressed.
tga.image_desc = 8; // 8 bits per component.
if (flip_image)
tga.image_desc |= 32;
// Write TGA header
fwrite((uint8*)&tga, sizeof(tga_header), 1, fp);
return 1;
}
opj_image_t* tgatoimage(const char *filename, opj_cparameters_t *parameters) {
FILE *f;
opj_image_t *image;
uint32 image_width, image_height, pixel_bit_depth;
uint32 x, y;
int flip_image=0;
opj_image_cmptparm_t cmptparm[4]; /* maximum 4 components */
int numcomps;
OPJ_COLOR_SPACE color_space;
bool mono ;
bool save_alpha;
int subsampling_dx, subsampling_dy;
int i;
f = fopen(filename, "rb");
if (!f) {
fprintf(stderr, "Failed to open %s for reading !!\n", filename);
return 0;
}
if (!tga_readheader(f, &pixel_bit_depth, &image_width, &image_height, &flip_image))
return NULL;
// We currently only support 24 & 32 bit tga's ...
if (!((pixel_bit_depth == 24) || (pixel_bit_depth == 32)))
return NULL;
/* initialize image components */
memset(&cmptparm[0], 0, 4 * sizeof(opj_image_cmptparm_t));
mono = (pixel_bit_depth == 8) || (pixel_bit_depth == 16); // Mono with & without alpha.
save_alpha = (pixel_bit_depth == 16) || (pixel_bit_depth == 32); // Mono with alpha, or RGB with alpha
if (mono) {
color_space = CLRSPC_GRAY;
numcomps = save_alpha ? 2 : 1;
}
else {
numcomps = save_alpha ? 4 : 3;
color_space = CLRSPC_SRGB;
}
subsampling_dx = parameters->subsampling_dx;
subsampling_dy = parameters->subsampling_dy;
for (i = 0; i < numcomps; i++) {
cmptparm[i].prec = 8;
cmptparm[i].bpp = 8;
cmptparm[i].sgnd = 0;
cmptparm[i].dx = subsampling_dx;
cmptparm[i].dy = subsampling_dy;
cmptparm[i].w = image_width;
cmptparm[i].h = image_height;
}
/* create the image */
image = opj_image_create(numcomps, &cmptparm[0], color_space);
if (!image)
return NULL;
/* set image offset and reference grid */
image->x0 = parameters->image_offset_x0;
image->y0 = parameters->image_offset_y0;
image->x1 = !image->x0 ? (image_width - 1) * subsampling_dx + 1 : image->x0 + (image_width - 1) * subsampling_dx + 1;
image->y1 = !image->y0 ? (image_height - 1) * subsampling_dy + 1 : image->y0 + (image_height - 1) * subsampling_dy + 1;
/* set image data */
for (y=0; y < image_height; y++)
{
int index;
if (flip_image)
index = (image_height-y-1)*image_width;
else
index = y*image_width;
if (numcomps==3)
{
for (x=0;x<image_width;x++)
{
uint8 r,g,b;
fread(&b, 1, 1, f);
fread(&g, 1, 1, f);
fread(&r, 1, 1, f);
image->comps[0].data[index]=r;
image->comps[1].data[index]=g;
image->comps[2].data[index]=b;
index++;
}
}
else if (numcomps==4)
{
for (x=0;x<image_width;x++)
{
uint8 r,g,b,a;
fread(&b, 1, 1, f);
fread(&g, 1, 1, f);
fread(&r, 1, 1, f);
fread(&a, 1, 1, f);
image->comps[0].data[index]=r;
image->comps[1].data[index]=g;
image->comps[2].data[index]=b;
image->comps[3].data[index]=a;
index++;
}
}
else {
fprintf(stderr, "Currently unsupported bit depth : %s\n", filename);
}
}
return image;
}
int imagetotga(opj_image_t * image, const char *outfile) {
int width, height, bpp, x, y;
bool write_alpha;
int i;
uint32 alpha_channel;
float r,g,b,a;
uint8 value;
float scale;
FILE *fdest;
fdest = fopen(outfile, "wb");
if (!fdest) {
fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
return 1;
}
for (i = 0; i < image->numcomps-1; i++) {
if ((image->comps[0].dx != image->comps[i+1].dx)
||(image->comps[0].dy != image->comps[i+1].dy)
||(image->comps[0].prec != image->comps[i+1].prec)) {
fprintf(stderr, "Unable to create a tga file with such J2K image charateristics.");
return 1;
}
}
width = int_ceildiv(image->x1-image->x0, image->comps[0].dx);
height = int_ceildiv(image->y1-image->y0, image->comps[0].dy);
// Mono with alpha, or RGB with alpha.
write_alpha = (image->numcomps==2) || (image->numcomps==4);
// Write TGA header
bpp = write_alpha ? 32 : 24;
if (!tga_writeheader(fdest, bpp, width, height, true))
return 1;
alpha_channel = image->numcomps-1;
scale = 255.0f / (float)((1<<image->comps[0].prec)-1);
for (y=0; y < height; y++) {
uint32 index=y*width;
for (x=0; x < width; x++, index++) {
r = (float)(image->comps[0].data[index]);
if (image->numcomps>2) {
g = (float)(image->comps[1].data[index]);
b = (float)(image->comps[2].data[index]);
}
else {// Greyscale ...
g = r;
b = r;
}
// TGA format writes BGR ...
value = (uint8)(b*scale);
fwrite(&value,1,1,fdest);
value = (uint8)(g*scale);
fwrite(&value,1,1,fdest);
value = (uint8)(r*scale);
fwrite(&value,1,1,fdest);
if (write_alpha) {
a = (float)(image->comps[alpha_channel].data[index]);
value = (uint8)(a*scale);
fwrite(&value,1,1,fdest);
}
}
}
return 0;
}
/* -->> -->> -->> -->>
BMP IMAGE FORMAT

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@ -47,8 +47,12 @@ typedef struct raw_cparameters {
/*@}*/
} raw_cparameters_t;
opj_image_t* bmptoimage(const char *filename, opj_cparameters_t *parameters);
/* TGA conversion */
opj_image_t* tgatoimage(const char *filename, opj_cparameters_t *parameters);
int imagetotga(opj_image_t * image, const char *outfile);
/* BMP conversion */
opj_image_t* bmptoimage(const char *filename, opj_cparameters_t *parameters);
int imagetobmp(opj_image_t *image, const char *outfile);
/* TIFF to image conversion*/
@ -61,15 +65,13 @@ Load a single image component encoded in PGX file format
@return Returns a greyscale image if successful, returns NULL otherwise
*/
opj_image_t* pgxtoimage(const char *filename, opj_cparameters_t *parameters);
int imagetopgx(opj_image_t *image, const char *outfile);
opj_image_t* pnmtoimage(const char *filename, opj_cparameters_t *parameters);
int imagetopnm(opj_image_t *image, const char *outfile);
/* RAW conversion */
int imagetoraw(opj_image_t * image, const char *outfile);
opj_image_t* rawtoimage(const char *filename, opj_cparameters_t *parameters, raw_cparameters_t *raw_cp);
#endif /* __J2K_CONVERT_H */

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@ -55,6 +55,7 @@
#define YUV_DFMT 13
#define TIF_DFMT 14
#define RAW_DFMT 15
#define TGA_DFMT 16
/* ----------------------------------------------------------------------- */
#define CINEMA_24_CS 1302083 /*Codestream length for 24fps*/
@ -134,9 +135,9 @@ void encode_help_display() {
fprintf(stdout,"-OutFor \n");
fprintf(stdout," REQUIRED only if -ImgDir is used\n");
fprintf(stdout," Need to specify only format without filename <BMP> \n");
fprintf(stdout," Currently accepts PGM, PPM, PNM, PGX, BMP format\n");
fprintf(stdout," Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA formats\n");
fprintf(stdout,"\n");
fprintf(stdout,"-i : source file (-i source.pnm also *.pgm, *.ppm, *.bmp, *.tif, *.raw) \n");
fprintf(stdout,"-i : source file (-i source.pnm also *.pgm, *.ppm, *.bmp, *.tif, *.raw, *.tga) \n");
fprintf(stdout," When using this option -o must be used\n");
fprintf(stdout,"\n");
fprintf(stdout,"-o : destination file (-o dest.j2k or .jp2) \n");
@ -369,17 +370,17 @@ int load_images(dircnt_t *dirptr, char *imgdirpath){
int get_file_format(char *filename) {
unsigned int i;
static const char *extension[] = {
"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "j2k", "jp2", "j2c"
"pgx", "pnm", "pgm", "ppm", "bmp", "tif", "raw", "tga", "j2k", "jp2", "j2c"
};
static const int format[] = {
PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, J2K_CFMT, JP2_CFMT, J2K_CFMT
PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, TGA_DFMT, J2K_CFMT, JP2_CFMT, J2K_CFMT
};
char * ext = strrchr(filename, '.');
if (ext == NULL)
return -1;
ext++;
for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
if(strnicmp(ext, extension[i], 3) == 0) {
if(_strnicmp(ext, extension[i], 3) == 0) {
return format[i];
}
}
@ -583,11 +584,12 @@ int parse_cmdline_encoder(int argc, char **argv, opj_cparameters_t *parameters,
case BMP_DFMT:
case TIF_DFMT:
case RAW_DFMT:
case TGA_DFMT:
break;
default:
fprintf(stderr,
"!! Unrecognized format for infile : %s "
"[accept only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif or *.raw] !!\n\n",
"[accept only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga] !!\n\n",
infile);
return 1;
}
@ -1549,6 +1551,8 @@ int main(int argc, char **argv) {
break;
case RAW_DFMT:
break;
case TGA_DFMT:
break;
default:
fprintf(stderr,"skipping file...\n");
continue;
@ -1597,6 +1601,14 @@ int main(int argc, char **argv) {
return 1;
}
break;
case TGA_DFMT:
image = tgatoimage(parameters.infile, &parameters);
if (!image) {
fprintf(stderr, "Unable to load tga file\n");
return 1;
}
break;
}
/* Decide if MCT should be used */
parameters.tcp_mct = image->numcomps == 3 ? 1 : 0;

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@ -55,6 +55,7 @@
#define YUV_DFMT 13
#define TIF_DFMT 14
#define RAW_DFMT 15
#define TGA_DFMT 16
/* ----------------------------------------------------------------------- */
@ -96,14 +97,14 @@ void decode_help_display() {
fprintf(stdout," -OutFor \n");
fprintf(stdout," REQUIRED only if -ImgDir is used\n");
fprintf(stdout," Need to specify only format without filename <BMP> \n");
fprintf(stdout," Currently accepts PGM, PPM, PNM, PGX, BMP, TIF and RAW formats\n");
fprintf(stdout," Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA formats\n");
fprintf(stdout," -i <compressed file>\n");
fprintf(stdout," REQUIRED only if an Input image directory not specified\n");
fprintf(stdout," Currently accepts J2K-files, JP2-files and JPT-files. The file type\n");
fprintf(stdout," is identified based on its suffix.\n");
fprintf(stdout," -o <decompressed file>\n");
fprintf(stdout," REQUIRED\n");
fprintf(stdout," Currently accepts PGM, PPM, PNM, PGX, BMP, TIF and RAW files\n");
fprintf(stdout," Currently accepts PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA files\n");
fprintf(stdout," Binary data is written to the file (not ascii). If a PGX\n");
fprintf(stdout," filename is given, there will be as many output files as there are\n");
fprintf(stdout," components: an indice starting from 0 will then be appended to the\n");
@ -182,15 +183,15 @@ int load_images(dircnt_t *dirptr, char *imgdirpath){
int get_file_format(char *filename) {
unsigned int i;
static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "j2k", "jp2", "jpt", "j2c" };
static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT, J2K_CFMT };
static const char *extension[] = {"pgx", "pnm", "pgm", "ppm", "bmp","tif", "raw", "tga", "j2k", "jp2", "jpt", "j2c" };
static const int format[] = { PGX_DFMT, PXM_DFMT, PXM_DFMT, PXM_DFMT, BMP_DFMT, TIF_DFMT, RAW_DFMT, TGA_DFMT, J2K_CFMT, JP2_CFMT, JPT_CFMT, J2K_CFMT };
char * ext = strrchr(filename, '.');
if (ext == NULL)
return -1;
ext++;
if(ext) {
for(i = 0; i < sizeof(format)/sizeof(*format); i++) {
if(strnicmp(ext, extension[i], 3) == 0) {
if(_strnicmp(ext, extension[i], 3) == 0) {
return format[i];
}
}
@ -276,9 +277,10 @@ int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,i
case BMP_DFMT:
case TIF_DFMT:
case RAW_DFMT:
case TGA_DFMT:
break;
default:
fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif or *.raw]!! \n", outfile);
fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outfile);
return 1;
}
strncpy(parameters->outfile, outfile, sizeof(parameters->outfile)-1);
@ -310,8 +312,11 @@ int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,i
case RAW_DFMT:
img_fol->out_format = "raw";
break;
case TGA_DFMT:
img_fol->out_format = "raw";
break;
default:
fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif or *.raw]!! \n");
fprintf(stderr, "Unknown output format image %s [only *.pnm, *.pgm, *.ppm, *.pgx, *.bmp, *.tif, *.raw or *.tga]!! \n", outformat);
return 1;
break;
}
@ -439,7 +444,7 @@ int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,i
}
if(img_fol->set_out_format == 0){
fprintf(stderr, "Error: When -ImgDir is used, -OutFor <FORMAT> must be used !!\n");
fprintf(stderr, "Only one format allowed! Valid format PGM, PPM, PNM, PGX, BMP, TIF, RAW!!\n");
fprintf(stderr, "Only one format allowed! Valid format PGM, PPM, PNM, PGX, BMP, TIF, RAW and TGA!!\n");
return 1;
}
if(!((parameters->outfile[0] == 0))){
@ -450,7 +455,7 @@ int parse_cmdline_decoder(int argc, char **argv, opj_dparameters_t *parameters,i
if((parameters->infile[0] == 0) || (parameters->outfile[0] == 0)) {
fprintf(stderr, "Error: One of the options -i or -ImgDir must be specified\n");
fprintf(stderr, "Error: When using -i, -o must be used\n");
fprintf(stderr, "usage: image_to_j2k -i *.j2k/jp2/j2c -o *.pgm/ppm/pnm/pgx/bmp/tif/raw(+ options)\n");
fprintf(stderr, "usage: image_to_j2k -i *.j2k/jp2/j2c -o *.pgm/ppm/pnm/pgx/bmp/tif/raw/tga(+ options)\n");
return 1;
}
}
@ -722,6 +727,15 @@ int main(int argc, char **argv) {
fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
}
break;
case TGA_DFMT: /* TGA */
if(imagetotga(image, parameters.outfile)){
fprintf(stdout,"Error generating tga file. Outfile %s not generated\n",parameters.outfile);
}
else {
fprintf(stdout,"Successfully generated Outfile %s\n",parameters.outfile);
}
break;
}
/* free remaining structures */