/*
+ * Copyright (c) 2002-2007, Communications and Remote Sensing Laboratory, Universite catholique de Louvain (UCL), Belgium
+ * Copyright (c) 2002-2007, Professor Benoit Macq
* Copyright (c) 2001-2003, David Janssens
* Copyright (c) 2002-2003, Yannick Verschueren
- * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
- * Copyright (c) 2005, Herv� Drolon, FreeImage Team
- * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
+ * Copyright (c) 2003-2007, Francois-Olivier Devaux and Antonin Descampe
+ * Copyright (c) 2005, Herve Drolon, FreeImage Team
+ * Copyright (c) 2006-2007, Parvatha Elangovan
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#ifdef WIN32
+#include "../libs/libtiff/tiffio.h"
+#include "../libs/libpng/png.h"
+#else
+#include <tiffio.h>
+#include <png.h>
+#endif /* WIN32 */
#include "openjpeg.h"
+#include "convert.h"
/*
* Get logarithm of an integer and round downwards.
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, uint32 *bits_per_pixel, uint32 *width, uint32 *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 = image->comps[0].w;
+ height = image->comps[0].h;
+
+ // 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
}
int imagetobmp(opj_image_t * image, const char *outfile) {
- int w, wr, h, hr;
+ int w, h;
int i, pad;
FILE *fdest = NULL;
+ int adjustR, adjustG, adjustB;
if (image->numcomps == 3 && image->comps[0].dx == image->comps[1].dx
&& image->comps[1].dx == image->comps[2].dx
return 1;
}
- /* w = int_ceildiv(image->x1 - image->x0, image->comps[0].dx); */
- /* wr = int_ceildiv(int_ceildivpow2(image->x1 - image->x0,image->factor), image->comps[0].dx); */
- w = image->comps[0].w;
- wr = int_ceildivpow2(image->comps[0].w, image->comps[0].factor);
-
- /* h = int_ceildiv(image->y1 - image->y0, image->comps[0].dy); */
- /* hr = int_ceildiv(int_ceildivpow2(image->y1 - image->y0,image->factor), image->comps[0].dy); */
+ w = image->comps[0].w;
h = image->comps[0].h;
- hr = int_ceildivpow2(image->comps[0].h, image->comps[0].factor);
fprintf(fdest, "BM");
/* FILE HEADER */
/* ------------- */
fprintf(fdest, "%c%c%c%c",
- (unsigned char) (hr * wr * 3 + 3 * hr * (wr % 2) + 54) & 0xff,
- (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2) + 54) >> 8) & 0xff,
- (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2) + 54) >> 16) & 0xff,
- (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2) + 54) >> 24) & 0xff);
+ (unsigned char) (h * w * 3 + 3 * h * (w % 2) + 54) & 0xff,
+ (unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 8) & 0xff,
+ (unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 16) & 0xff,
+ (unsigned char) ((h * w * 3 + 3 * h * (w % 2) + 54) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (54) & 0xff, ((54) >> 8) & 0xff,((54) >> 16) & 0xff, ((54) >> 24) & 0xff);
/* INFO HEADER */
/* ------------- */
fprintf(fdest, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff, ((40) >> 16) & 0xff, ((40) >> 24) & 0xff);
- fprintf(fdest, "%c%c%c%c", (unsigned char) ((wr) & 0xff),
- (unsigned char) ((wr) >> 8) & 0xff,
- (unsigned char) ((wr) >> 16) & 0xff,
- (unsigned char) ((wr) >> 24) & 0xff);
- fprintf(fdest, "%c%c%c%c", (unsigned char) ((hr) & 0xff),
- (unsigned char) ((hr) >> 8) & 0xff,
- (unsigned char) ((hr) >> 16) & 0xff,
- (unsigned char) ((hr) >> 24) & 0xff);
+ fprintf(fdest, "%c%c%c%c", (unsigned char) ((w) & 0xff),
+ (unsigned char) ((w) >> 8) & 0xff,
+ (unsigned char) ((w) >> 16) & 0xff,
+ (unsigned char) ((w) >> 24) & 0xff);
+ fprintf(fdest, "%c%c%c%c", (unsigned char) ((h) & 0xff),
+ (unsigned char) ((h) >> 8) & 0xff,
+ (unsigned char) ((h) >> 16) & 0xff,
+ (unsigned char) ((h) >> 24) & 0xff);
fprintf(fdest, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);
fprintf(fdest, "%c%c", (24) & 0xff, ((24) >> 8) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
- fprintf(fdest, "%c%c%c%c", (unsigned char) (3 * hr * wr + 3 * hr * (wr % 2)) & 0xff,
- (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2)) >> 8) & 0xff,
- (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2)) >> 16) & 0xff,
- (unsigned char) ((hr * wr * 3 + 3 * hr * (wr % 2)) >> 24) & 0xff);
+ fprintf(fdest, "%c%c%c%c", (unsigned char) (3 * h * w + 3 * h * (w % 2)) & 0xff,
+ (unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 8) & 0xff,
+ (unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 16) & 0xff,
+ (unsigned char) ((h * w * 3 + 3 * h * (w % 2)) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
- for (i = 0; i < wr * hr; i++) {
- unsigned char R, G, B;
- /* a modifier */
- /* R = image->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)]; */
- R = image->comps[0].data[w * hr - ((i) / (wr) + 1) * w + (i) % (wr)];
- /* G = image->comps[1].data[w * h - ((i) / (w) + 1) * w + (i) % (w)]; */
- G = image->comps[1].data[w * hr - ((i) / (wr) + 1) * w + (i) % (wr)];
- /* B = image->comps[2].data[w * h - ((i) / (w) + 1) * w + (i) % (w)]; */
- B = image->comps[2].data[w * hr - ((i) / (wr) + 1) * w + (i) % (wr)];
- fprintf(fdest, "%c%c%c", B, G, R);
+ if (image->comps[0].prec > 8) {
+ adjustR = image->comps[0].prec - 8;
+ printf("BMP CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
+ }
+ else
+ adjustR = 0;
+ if (image->comps[1].prec > 8) {
+ adjustG = image->comps[1].prec - 8;
+ printf("BMP CONVERSION: Truncating component 1 from %d bits to 8 bits\n", image->comps[1].prec);
+ }
+ else
+ adjustG = 0;
+ if (image->comps[2].prec > 8) {
+ adjustB = image->comps[2].prec - 8;
+ printf("BMP CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);
+ }
+ else
+ adjustB = 0;
+
+ for (i = 0; i < w * h; i++) {
+ unsigned char rc, gc, bc;
+ int r, g, b;
+
+ r = image->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
+ r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
+ rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));
+ g = image->comps[1].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
+ g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
+ gc = (unsigned char) ((g >> adjustG)+((g >> (adjustG-1))%2));
+ b = image->comps[2].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
+ b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
+ bc = (unsigned char) ((b >> adjustB)+((b >> (adjustB-1))%2));
+
+ fprintf(fdest, "%c%c%c", bc, gc, rc);
- if ((i + 1) % wr == 0) {
- for (pad = (3 * wr) % 4 ? 4 - (3 * wr) % 4 : 0; pad > 0; pad--) /* ADD */
+ if ((i + 1) % w == 0) {
+ for (pad = (3 * w) % 4 ? 4 - (3 * w) % 4 : 0; pad > 0; pad--) /* ADD */
fprintf(fdest, "%c", 0);
}
}
<<-- <<-- <<-- <<-- */
fdest = fopen(outfile, "wb");
- /* w = int_ceildiv(image->x1 - image->x0, image->comps[0].dx); */
- /* wr = int_ceildiv(int_ceildivpow2(image->x1 - image->x0,image->factor), image->comps[0].dx); */
- w = image->comps[0].w;
- wr = int_ceildivpow2(image->comps[0].w, image->comps[0].factor);
-
- /* h = int_ceildiv(image->y1 - image->y0, image->comps[0].dy); */
- /* hr = int_ceildiv(int_ceildivpow2(image->y1 - image->y0,image->factor), image->comps[0].dy); */
+ w = image->comps[0].w;
h = image->comps[0].h;
- hr = int_ceildivpow2(image->comps[0].h, image->comps[0].factor);
fprintf(fdest, "BM");
/* FILE HEADER */
/* ------------- */
- fprintf(fdest, "%c%c%c%c", (unsigned char) (hr * wr + 54 + 1024 + hr * (wr % 2)) & 0xff,
- (unsigned char) ((hr * wr + 54 + 1024 + hr * (wr % 2)) >> 8) & 0xff,
- (unsigned char) ((hr * wr + 54 + 1024 + hr * (wr % 2)) >> 16) & 0xff,
- (unsigned char) ((hr * wr + 54 + 1024 + wr * (wr % 2)) >> 24) & 0xff);
+ fprintf(fdest, "%c%c%c%c", (unsigned char) (h * w + 54 + 1024 + h * (w % 2)) & 0xff,
+ (unsigned char) ((h * w + 54 + 1024 + h * (w % 2)) >> 8) & 0xff,
+ (unsigned char) ((h * w + 54 + 1024 + h * (w % 2)) >> 16) & 0xff,
+ (unsigned char) ((h * w + 54 + 1024 + w * (w % 2)) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (54 + 1024) & 0xff, ((54 + 1024) >> 8) & 0xff,
((54 + 1024) >> 16) & 0xff,
/* INFO HEADER */
/* ------------- */
fprintf(fdest, "%c%c%c%c", (40) & 0xff, ((40) >> 8) & 0xff, ((40) >> 16) & 0xff, ((40) >> 24) & 0xff);
- fprintf(fdest, "%c%c%c%c", (unsigned char) ((wr) & 0xff),
- (unsigned char) ((wr) >> 8) & 0xff,
- (unsigned char) ((wr) >> 16) & 0xff,
- (unsigned char) ((wr) >> 24) & 0xff);
- fprintf(fdest, "%c%c%c%c", (unsigned char) ((hr) & 0xff),
- (unsigned char) ((hr) >> 8) & 0xff,
- (unsigned char) ((hr) >> 16) & 0xff,
- (unsigned char) ((hr) >> 24) & 0xff);
+ fprintf(fdest, "%c%c%c%c", (unsigned char) ((w) & 0xff),
+ (unsigned char) ((w) >> 8) & 0xff,
+ (unsigned char) ((w) >> 16) & 0xff,
+ (unsigned char) ((w) >> 24) & 0xff);
+ fprintf(fdest, "%c%c%c%c", (unsigned char) ((h) & 0xff),
+ (unsigned char) ((h) >> 8) & 0xff,
+ (unsigned char) ((h) >> 16) & 0xff,
+ (unsigned char) ((h) >> 24) & 0xff);
fprintf(fdest, "%c%c", (1) & 0xff, ((1) >> 8) & 0xff);
fprintf(fdest, "%c%c", (8) & 0xff, ((8) >> 8) & 0xff);
fprintf(fdest, "%c%c%c%c", (0) & 0xff, ((0) >> 8) & 0xff, ((0) >> 16) & 0xff, ((0) >> 24) & 0xff);
- fprintf(fdest, "%c%c%c%c", (unsigned char) (hr * wr + hr * (wr % 2)) & 0xff,
- (unsigned char) ((hr * wr + hr * (wr % 2)) >> 8) & 0xff,
- (unsigned char) ((hr * wr + hr * (wr % 2)) >> 16) & 0xff,
- (unsigned char) ((hr * wr + hr * (wr % 2)) >> 24) & 0xff);
+ fprintf(fdest, "%c%c%c%c", (unsigned char) (h * w + h * (w % 2)) & 0xff,
+ (unsigned char) ((h * w + h * (w % 2)) >> 8) & 0xff,
+ (unsigned char) ((h * w + h * (w % 2)) >> 16) & 0xff,
+ (unsigned char) ((h * w + h * (w % 2)) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (7834) & 0xff, ((7834) >> 8) & 0xff, ((7834) >> 16) & 0xff, ((7834) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (256) & 0xff, ((256) >> 8) & 0xff, ((256) >> 16) & 0xff, ((256) >> 24) & 0xff);
fprintf(fdest, "%c%c%c%c", (256) & 0xff, ((256) >> 8) & 0xff, ((256) >> 16) & 0xff, ((256) >> 24) & 0xff);
+ if (image->comps[0].prec > 8) {
+ adjustR = image->comps[0].prec - 8;
+ printf("BMP CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
+ }else
+ adjustR = 0;
+
for (i = 0; i < 256; i++) {
fprintf(fdest, "%c%c%c%c", i, i, i, 0);
}
- for (i = 0; i < wr * hr; i++) {
- /* a modifier !! */
- /* fprintf(fdest, "%c", image->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)]); */
- fprintf(fdest, "%c", image->comps[0].data[w * hr - ((i) / (wr) + 1) * w + (i) % (wr)]);
- /*if (((i + 1) % w == 0 && w % 2))
- fprintf(fdest, "%c", 0); */
- if ((i + 1) % wr == 0) {
- for (pad = wr % 4 ? 4 - wr % 4 : 0; pad > 0; pad--) /* ADD */
+ for (i = 0; i < w * h; i++) {
+ unsigned char rc;
+ int r;
+
+ r = image->comps[0].data[w * h - ((i) / (w) + 1) * w + (i) % (w)];
+ r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
+ rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));
+
+ fprintf(fdest, "%c", rc);
+
+ if ((i + 1) % w == 0) {
+ for (pad = w % 4 ? 4 - w % 4 : 0; pad > 0; pad--) /* ADD */
fprintf(fdest, "%c", 0);
}
}
}
int imagetopgx(opj_image_t * image, const char *outfile) {
- int w, wr, h, hr;
+ int w, h;
int i, j, compno;
FILE *fdest = NULL;
if( total > 256 ) {
free(name);
}
- /* w = int_ceildiv(image->x1 - image->x0, comp->dx); */
- /* wr = int_ceildiv(int_ceildivpow2(image->x1 - image->x0,image->factor), comp->dx); */
+
w = image->comps[compno].w;
- wr = int_ceildivpow2(image->comps[compno].w, image->comps[compno].factor);
-
- /* h = int_ceildiv(image->y1 - image->y0, comp->dy); */
- /* hr = int_ceildiv(int_ceildivpow2(image->y1 - image->y0,image->factor), comp->dy); */
h = image->comps[compno].h;
- hr = int_ceildivpow2(image->comps[compno].h, image->comps[compno].factor);
- fprintf(fdest, "PG ML %c %d %d %d\n", comp->sgnd ? '-' : '+', comp->prec, wr, hr);
+ fprintf(fdest, "PG ML %c %d %d %d\n", comp->sgnd ? '-' : '+', comp->prec, w, h);
if (comp->prec <= 8) {
nbytes = 1;
} else if (comp->prec <= 16) {
} else {
nbytes = 4;
}
- for (i = 0; i < wr * hr; i++) {
- int v = image->comps[compno].data[i / wr * w + i % wr];
+ for (i = 0; i < w * h; i++) {
+ int v = image->comps[compno].data[i];
for (j = nbytes - 1; j >= 0; j--) {
char byte = (char) (v >> (j * 8));
fwrite(&byte, 1, 1, fdest);
}
int imagetopnm(opj_image_t * image, const char *outfile) {
- int w, wr, wrr, h, hr, hrr, max;
+ int w, wr, h, hr, max;
int i, compno;
- int adjust;
+ int adjustR, adjustG, adjustB, adjustX;
FILE *fdest = NULL;
char S2;
const char *tmp = outfile;
}
w = int_ceildiv(image->x1 - image->x0, image->comps[0].dx);
- /* wr = int_ceildiv(int_ceildivpow2(image->x1 - image->x0,image->factor),image->comps[0].dx); */
wr = image->comps[0].w;
- wrr = int_ceildivpow2(image->comps[0].w, image->comps[0].factor);
h = int_ceildiv(image->y1 - image->y0, image->comps[0].dy);
- /* hr = int_ceildiv(int_ceildivpow2(image->y1 - image->y0,image->factor), image->comps[0].dy); */
hr = image->comps[0].h;
- hrr = int_ceildivpow2(image->comps[0].h, image->comps[0].factor);
max = image->comps[0].prec > 8 ? 255 : (1 << image->comps[0].prec) - 1;
image->comps[0].x0 = int_ceildivpow2(image->comps[0].x0 - int_ceildiv(image->x0, image->comps[0].dx), image->comps[0].factor);
image->comps[0].y0 = int_ceildivpow2(image->comps[0].y0 - int_ceildiv(image->y0, image->comps[0].dy), image->comps[0].factor);
- fprintf(fdest, "P6\n%d %d\n%d\n", wrr, hrr, max);
- adjust = image->comps[0].prec > 8 ? image->comps[0].prec - 8 : 0;
- for (i = 0; i < wrr * hrr; i++) {
+ fprintf(fdest, "P6\n%d %d\n%d\n", wr, hr, max);
+
+ if (image->comps[0].prec > 8) {
+ adjustR = image->comps[0].prec - 8;
+ printf("PNM CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
+ }
+ else
+ adjustR = 0;
+ if (image->comps[1].prec > 8) {
+ adjustG = image->comps[1].prec - 8;
+ printf("PNM CONVERSION: Truncating component 1 from %d bits to 8 bits\n", image->comps[1].prec);
+ }
+ else
+ adjustG = 0;
+ if (image->comps[2].prec > 8) {
+ adjustB = image->comps[2].prec - 8;
+ printf("PNM CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);
+ }
+ else
+ adjustB = 0;
+
+
+ for (i = 0; i < wr * hr; i++) {
int r, g, b;
unsigned char rc,gc,bc;
- r = image->comps[0].data[i / wrr * wr + i % wrr];
+ r = image->comps[0].data[i];
r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
- rc = (unsigned char) ((r >> adjust)+((r >> (adjust-1))%2));
+ rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));
- g = image->comps[1].data[i / wrr * wr + i % wrr];
+ g = image->comps[1].data[i];
g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
- gc = (unsigned char) ((g >> adjust)+((g >> (adjust-1))%2));
+ gc = (unsigned char) ((g >> adjustG)+((g >> (adjustG-1))%2));
- b = image->comps[2].data[i / wrr * wr + i % wrr];
+ b = image->comps[2].data[i];
b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
- bc = (unsigned char) ((b >> adjust)+((b >> (adjust-1))%2));
+ bc = (unsigned char) ((b >> adjustB)+((b >> (adjustB-1))%2));
fprintf(fdest, "%c%c%c", rc, gc, bc);
}
fclose(fdest);
+
} else {
int ncomp=(S2=='g' || S2=='G')?1:image->numcomps;
- if (image->numcomps>ncomp) {
+ if (image->numcomps > ncomp) {
fprintf(stderr,"WARNING -> [PGM files] Only the first component\n");
fprintf(stderr," is written to the file\n");
}
}
w = int_ceildiv(image->x1 - image->x0, image->comps[compno].dx);
- /* wr = int_ceildiv(int_ceildivpow2(image->x1 - image->x0,image->factor),image->comps[compno].dx); */
wr = image->comps[compno].w;
- wrr = int_ceildivpow2(image->comps[compno].w, image->comps[compno].factor);
h = int_ceildiv(image->y1 - image->y0, image->comps[compno].dy);
- /* hr = int_ceildiv(int_ceildivpow2(image->y1 - image->y0,image->factor), image->comps[compno].dy); */
hr = image->comps[compno].h;
- hrr = int_ceildivpow2(image->comps[compno].h, image->comps[compno].factor);
max = image->comps[compno].prec > 8 ? 255 : (1 << image->comps[compno].prec) - 1;
image->comps[compno].x0 = int_ceildivpow2(image->comps[compno].x0 - int_ceildiv(image->x0, image->comps[compno].dx), image->comps[compno].factor);
image->comps[compno].y0 = int_ceildivpow2(image->comps[compno].y0 - int_ceildiv(image->y0, image->comps[compno].dy), image->comps[compno].factor);
- fprintf(fdest, "P5\n%d %d\n%d\n", wrr, hrr, max);
- adjust = image->comps[compno].prec > 8 ? image->comps[compno].prec - 8 : 0;
-
- for (i = 0; i < wrr * hrr; i++) {
+ fprintf(fdest, "P5\n%d %d\n%d\n", wr, hr, max);
+
+ if (image->comps[compno].prec > 8) {
+ adjustX = image->comps[0].prec - 8;
+ printf("PNM CONVERSION: Truncating component %d from %d bits to 8 bits\n",compno, image->comps[compno].prec);
+ }
+ else
+ adjustX = 0;
+
+ for (i = 0; i < wr * hr; i++) {
int l;
unsigned char lc;
- l = image->comps[compno].data[i / wrr * wr + i % wrr];
+ l = image->comps[compno].data[i];
l += (image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0);
- lc = (unsigned char) ((l >> adjust)+((l >> (adjust-1))%2));
+ lc = (unsigned char) ((l >> adjustX)+((l >> (adjustX-1))%2));
fprintf(fdest, "%c", lc);
}
fclose(fdest);
return 0;
}
+/* -->> -->> -->> -->>
+
+ TIFF IMAGE FORMAT
+
+ <<-- <<-- <<-- <<-- */
+
+typedef struct tiff_infoheader{
+ DWORD tiWidth; // Width of Image in pixel
+ DWORD tiHeight; // Height of Image in pixel
+ DWORD tiPhoto; // Photometric
+ WORD tiBps; // Bits per sample
+ WORD tiSf; // Sample Format
+ WORD tiSpp; // Sample per pixel 1-bilevel,gray scale , 2- RGB
+ WORD tiPC; // Planar config (1-Interleaved, 2-Planarcomp)
+}tiff_infoheader_t;
+
+int imagetotif(opj_image_t * image, const char *outfile) {
+ int width, height, imgsize;
+ int bps,index,adjust = 0;
+ int last_i=0;
+ TIFF *tif;
+ tdata_t buf;
+ tstrip_t strip;
+ tsize_t strip_size;
+
+ if (image->numcomps == 3 && image->comps[0].dx == image->comps[1].dx
+ && image->comps[1].dx == image->comps[2].dx
+ && image->comps[0].dy == image->comps[1].dy
+ && image->comps[1].dy == image->comps[2].dy
+ && image->comps[0].prec == image->comps[1].prec
+ && image->comps[1].prec == image->comps[2].prec) {
+
+ /* -->> -->> -->>
+ RGB color
+ <<-- <<-- <<-- */
+ tif = TIFFOpen(outfile, "wb");
+ if (!tif) {
+ fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
+ return 1;
+ }
+
+ width = image->comps[0].w;
+ height = image->comps[0].h;
+ imgsize = width * height ;
+ bps = image->comps[0].prec;
+ /* Set tags */
+ TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width);
+ TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height);
+ TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3);
+ TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps);
+ TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
+ TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
+ TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_RGB);
+ TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
+
+ /* Get a buffer for the data */
+ strip_size=TIFFStripSize(tif);
+ buf = _TIFFmalloc(strip_size);
+ index=0;
+ adjust = image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0;
+ for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
+ unsigned char *dat8;
+ int i, ssize;
+ ssize = TIFFStripSize(tif);
+ dat8 = (unsigned char*)buf;
+ if (image->comps[0].prec == 8){
+ for (i=0; i<ssize-2; i+=3) { // 8 bits per pixel
+ int r = 0,g = 0,b = 0;
+ if(index < imgsize){
+ r = image->comps[0].data[index];
+ g = image->comps[1].data[index];
+ b = image->comps[2].data[index];
+ if (image->comps[0].sgnd){
+ r += adjust;
+ g += adjust;
+ b += adjust;
+ }
+ dat8[i+0] = r ; // R
+ dat8[i+1] = g ; // G
+ dat8[i+2] = b ; // B
+ index++;
+ last_i = i+3;
+ }else
+ break;
+ }
+ if(last_i < ssize){
+ for (i=last_i; i<ssize; i+=3) { // 8 bits per pixel
+ int r = 0,g = 0,b = 0;
+ if(index < imgsize){
+ r = image->comps[0].data[index];
+ g = image->comps[1].data[index];
+ b = image->comps[2].data[index];
+ if (image->comps[0].sgnd){
+ r += adjust;
+ g += adjust;
+ b += adjust;
+ }
+ dat8[i+0] = r ; // R
+ if(i+1 <ssize) dat8[i+1] = g ; else break;// G
+ if(i+2 <ssize) dat8[i+2] = b ; else break;// B
+ index++;
+ }else
+ break;
+ }
+ }
+ }else if (image->comps[0].prec == 12){
+ for (i=0; i<ssize-8; i+=9) { // 12 bits per pixel
+ int r = 0,g = 0,b = 0;
+ int r1 = 0,g1 = 0,b1 = 0;
+ if((index < imgsize)&(index+1 < imgsize)){
+ r = image->comps[0].data[index];
+ g = image->comps[1].data[index];
+ b = image->comps[2].data[index];
+ r1 = image->comps[0].data[index+1];
+ g1 = image->comps[1].data[index+1];
+ b1 = image->comps[2].data[index+1];
+ if (image->comps[0].sgnd){
+ r += adjust;
+ g += adjust;
+ b += adjust;
+ r1 += adjust;
+ g1 += adjust;
+ b1 += adjust;
+ }
+ dat8[i+0] = (r >> 4);
+ dat8[i+1] = ((r & 0x0f) << 4 )|((g >> 8)& 0x0f);
+ dat8[i+2] = g ;
+ dat8[i+3] = (b >> 4);
+ dat8[i+4] = ((b & 0x0f) << 4 )|((r1 >> 8)& 0x0f);
+ dat8[i+5] = r1;
+ dat8[i+6] = (g1 >> 4);
+ dat8[i+7] = ((g1 & 0x0f)<< 4 )|((b1 >> 8)& 0x0f);
+ dat8[i+8] = b1;
+ index+=2;
+ last_i = i+9;
+ }else
+ break;
+ }
+ if(last_i < ssize){
+ for (i= last_i; i<ssize; i+=9) { // 12 bits per pixel
+ int r = 0,g = 0,b = 0;
+ int r1 = 0,g1 = 0,b1 = 0;
+ if((index < imgsize)&(index+1 < imgsize)){
+ r = image->comps[0].data[index];
+ g = image->comps[1].data[index];
+ b = image->comps[2].data[index];
+ r1 = image->comps[0].data[index+1];
+ g1 = image->comps[1].data[index+1];
+ b1 = image->comps[2].data[index+1];
+ if (image->comps[0].sgnd){
+ r += adjust;
+ g += adjust;
+ b += adjust;
+ r1 += adjust;
+ g1 += adjust;
+ b1 += adjust;
+ }
+ dat8[i+0] = (r >> 4);
+ if(i+1 <ssize) dat8[i+1] = ((r & 0x0f) << 4 )|((g >> 8)& 0x0f); else break;
+ if(i+2 <ssize) dat8[i+2] = g ; else break;
+ if(i+3 <ssize) dat8[i+3] = (b >> 4); else break;
+ if(i+4 <ssize) dat8[i+4] = ((b & 0x0f) << 4 )|((r1 >> 8)& 0x0f);else break;
+ if(i+5 <ssize) dat8[i+5] = r1; else break;
+ if(i+6 <ssize) dat8[i+6] = (g1 >> 4); else break;
+ if(i+7 <ssize) dat8[i+7] = ((g1 & 0x0f)<< 4 )|((b1 >> 8)& 0x0f);else break;
+ if(i+8 <ssize) dat8[i+8] = b1; else break;
+ index+=2;
+ }else
+ break;
+ }
+ }
+ }else if (image->comps[0].prec == 16){
+ for (i=0 ; i<ssize-5 ; i+=6) { // 16 bits per pixel
+ int r = 0,g = 0,b = 0;
+ if(index < imgsize){
+ r = image->comps[0].data[index];
+ g = image->comps[1].data[index];
+ b = image->comps[2].data[index];
+ if (image->comps[0].sgnd){
+ r += adjust;
+ g += adjust;
+ b += adjust;
+ }
+ dat8[i+0] = r;//LSB
+ dat8[i+1] = (r >> 8);//MSB
+ dat8[i+2] = g;
+ dat8[i+3] = (g >> 8);
+ dat8[i+4] = b;
+ dat8[i+5] = (b >> 8);
+ index++;
+ last_i = i+6;
+ }else
+ break;
+ }
+ if(last_i < ssize){
+ for (i=0 ; i<ssize ; i+=6) { // 16 bits per pixel
+ int r = 0,g = 0,b = 0;
+ if(index < imgsize){
+ r = image->comps[0].data[index];
+ g = image->comps[1].data[index];
+ b = image->comps[2].data[index];
+ if (image->comps[0].sgnd){
+ r += adjust;
+ g += adjust;
+ b += adjust;
+ }
+ dat8[i+0] = r;//LSB
+ if(i+1 <ssize) dat8[i+1] = (r >> 8);else break;//MSB
+ if(i+2 <ssize) dat8[i+2] = g; else break;
+ if(i+3 <ssize) dat8[i+3] = (g >> 8);else break;
+ if(i+4 <ssize) dat8[i+4] = b; else break;
+ if(i+5 <ssize) dat8[i+5] = (b >> 8);else break;
+ index++;
+ }else
+ break;
+ }
+ }
+ }else{
+ fprintf(stderr,"Bits=%d, Only 8,12,16 bits implemented\n",image->comps[0].prec);
+ fprintf(stderr,"Aborting\n");
+ return 1;
+ }
+ TIFFWriteEncodedStrip(tif, strip, buf, strip_size);
+ }
+ _TIFFfree(buf);
+ TIFFClose(tif);
+ }else if (image->numcomps == 1){
+ /* -->> -->> -->>
+ Black and White
+ <<-- <<-- <<-- */
+
+ tif = TIFFOpen(outfile, "wb");
+ if (!tif) {
+ fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
+ return 1;
+ }
+
+ width = image->comps[0].w;
+ height = image->comps[0].h;
+ imgsize = width * height;
+ bps = image->comps[0].prec;
+
+ /* Set tags */
+ TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width);
+ TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height);
+ TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1);
+ TIFFSetField(tif, TIFFTAG_BITSPERSAMPLE, bps);
+ TIFFSetField(tif, TIFFTAG_ORIENTATION, ORIENTATION_TOPLEFT);
+ TIFFSetField(tif, TIFFTAG_PLANARCONFIG, PLANARCONFIG_CONTIG);
+ TIFFSetField(tif, TIFFTAG_PHOTOMETRIC, PHOTOMETRIC_MINISBLACK);
+ TIFFSetField(tif, TIFFTAG_ROWSPERSTRIP, 1);
+
+ /* Get a buffer for the data */
+ strip_size = TIFFStripSize(tif);
+ buf = _TIFFmalloc(strip_size);
+ index = 0;
+ for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
+ unsigned char *dat8;
+ int i;
+ dat8 = (unsigned char*)buf;
+ if (image->comps[0].prec == 8){
+ for (i=0; i<TIFFStripSize(tif); i+=1) { // 8 bits per pixel
+ if(index < imgsize){
+ int r = 0;
+ r = image->comps[0].data[index];
+ if (image->comps[0].sgnd){
+ r += adjust;
+ }
+ dat8[i+0] = r;
+ index++;
+ }else
+ break;
+ }
+ }else if (image->comps[0].prec == 12){
+ for (i = 0; i<TIFFStripSize(tif); i+=3) { // 12 bits per pixel
+ if(index < imgsize){
+ int r = 0, r1 = 0;
+ r = image->comps[0].data[index];
+ r1 = image->comps[0].data[index+1];
+ if (image->comps[0].sgnd){
+ r += adjust;
+ r1 += adjust;
+ }
+ dat8[i+0] = (r >> 4);
+ dat8[i+1] = ((r & 0x0f) << 4 )|((r1 >> 8)& 0x0f);
+ dat8[i+2] = r1 ;
+ index+=2;
+ }else
+ break;
+ }
+ }else if (image->comps[0].prec == 16){
+ for (i=0; i<TIFFStripSize(tif); i+=2) { // 16 bits per pixel
+ if(index < imgsize){
+ int r = 0;
+ r = image->comps[0].data[index];
+ if (image->comps[0].sgnd){
+ r += adjust;
+ }
+ dat8[i+0] = r;
+ dat8[i+1] = r >> 8;
+ index++;
+ }else
+ break;
+ }
+ }else{
+ fprintf(stderr,"TIFF file creation. Bits=%d, Only 8,12,16 bits implemented\n",image->comps[0].prec);
+ fprintf(stderr,"Aborting\n");
+ return 1;
+ }
+ TIFFWriteEncodedStrip(tif, strip, buf, strip_size);
+ }
+ _TIFFfree(buf);
+ TIFFClose(tif);
+ }else{
+ fprintf(stderr,"TIFF file creation. Bad color format. Only RGB & Grayscale has been implemented\n");
+ fprintf(stderr,"Aborting\n");
+ return 1;
+ }
+ return 0;
+}
+
+opj_image_t* tiftoimage(const char *filename, opj_cparameters_t *parameters)
+{
+ int subsampling_dx = parameters->subsampling_dx;
+ int subsampling_dy = parameters->subsampling_dy;
+ TIFF *tif;
+ tiff_infoheader_t Info;
+ tdata_t buf;
+ tstrip_t strip;
+ tsize_t strip_size;
+ int j, numcomps, w, h,index;
+ OPJ_COLOR_SPACE color_space;
+ opj_image_cmptparm_t cmptparm[3];
+ opj_image_t * image = NULL;
+ int imgsize = 0;
+
+ tif = TIFFOpen(filename, "r");
+
+ if (!tif) {
+ fprintf(stderr, "Failed to open %s for reading\n", filename);
+ return 0;
+ }
+
+ TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &Info.tiWidth);
+ TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &Info.tiHeight);
+ TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &Info.tiBps);
+ TIFFGetField(tif, TIFFTAG_SAMPLEFORMAT, &Info.tiSf);
+ TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &Info.tiSpp);
+ Info.tiPhoto = 0;
+ TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &Info.tiPhoto);
+ TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &Info.tiPC);
+ w= Info.tiWidth;
+ h= Info.tiHeight;
+
+ if (Info.tiPhoto == 2) {
+ /* -->> -->> -->>
+ RGB color
+ <<-- <<-- <<-- */
+
+ numcomps = 3;
+ color_space = CLRSPC_SRGB;
+ /* initialize image components*/
+ memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t));
+ for(j = 0; j < numcomps; j++) {
+ if (parameters->cp_cinema) {
+ cmptparm[j].prec = 12;
+ cmptparm[j].bpp = 12;
+ }else{
+ cmptparm[j].prec = Info.tiBps;
+ cmptparm[j].bpp = Info.tiBps;
+ }
+ cmptparm[j].sgnd = 0;
+ cmptparm[j].dx = subsampling_dx;
+ cmptparm[j].dy = subsampling_dy;
+ cmptparm[j].w = w;
+ cmptparm[j].h = h;
+ }
+ /* create the image*/
+ image = opj_image_create(numcomps, &cmptparm[0], color_space);
+ if(!image) {
+ TIFFClose(tif);
+ return NULL;
+ }
+
+ /* set image offset and reference grid */
+ image->x0 = parameters->image_offset_x0;
+ image->y0 = parameters->image_offset_y0;
+ image->x1 = !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
+ image->y1 = !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
+
+ buf = _TIFFmalloc(TIFFStripSize(tif));
+ strip_size=0;
+ strip_size=TIFFStripSize(tif);
+ index = 0;
+ imgsize = image->comps[0].w * image->comps[0].h ;
+ /* Read the Image components*/
+ for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
+ unsigned char *dat8;
+ int i, ssize;
+ ssize = TIFFReadEncodedStrip(tif, strip, buf, strip_size);
+ dat8 = (unsigned char*)buf;
+
+ if (Info.tiBps==12){
+ for (i=0; i<ssize; i+=9) { /*12 bits per pixel*/
+ if((index < imgsize)&(index+1 < imgsize)){
+ image->comps[0].data[index] = ( dat8[i+0]<<4 ) |(dat8[i+1]>>4);
+ image->comps[1].data[index] = ((dat8[i+1]& 0x0f)<< 8) | dat8[i+2];
+ image->comps[2].data[index] = ( dat8[i+3]<<4) |(dat8[i+4]>>4);
+ image->comps[0].data[index+1] = ((dat8[i+4]& 0x0f)<< 8) | dat8[i+5];
+ image->comps[1].data[index+1] = ( dat8[i+6] <<4) |(dat8[i+7]>>4);
+ image->comps[2].data[index+1] = ((dat8[i+7]& 0x0f)<< 8) | dat8[i+8];
+ index+=2;
+ }else
+ break;
+ }
+ }
+ else if( Info.tiBps==16){
+ for (i=0; i<ssize; i+=6) { /* 16 bits per pixel */
+ if(index < imgsize){
+ image->comps[0].data[index] = ( dat8[i+1] << 8 ) | dat8[i+0]; // R
+ image->comps[1].data[index] = ( dat8[i+3] << 8 ) | dat8[i+2]; // G
+ image->comps[2].data[index] = ( dat8[i+5] << 8 ) | dat8[i+4]; // B
+ if(parameters->cp_cinema){/* Rounding to 12 bits*/
+ image->comps[0].data[index] = (image->comps[0].data[index] + 0x08) >> 4 ;
+ image->comps[1].data[index] = (image->comps[1].data[index] + 0x08) >> 4 ;
+ image->comps[2].data[index] = (image->comps[2].data[index] + 0x08) >> 4 ;
+ }
+ index++;
+ }else
+ break;
+ }
+ }
+ else if ( Info.tiBps==8){
+ for (i=0; i<ssize; i+=3) { /* 8 bits per pixel */
+ if(index < imgsize){
+ image->comps[0].data[index] = dat8[i+0];// R
+ image->comps[1].data[index] = dat8[i+1];// G
+ image->comps[2].data[index] = dat8[i+2];// B
+ if(parameters->cp_cinema){/* Rounding to 12 bits*/
+ image->comps[0].data[index] = image->comps[0].data[index] << 4 ;
+ image->comps[1].data[index] = image->comps[1].data[index] << 4 ;
+ image->comps[2].data[index] = image->comps[2].data[index] << 4 ;
+ }
+ index++;
+ }else
+ break;
+ }
+ }
+ else{
+ fprintf(stderr,"TIFF file creation. Bits=%d, Only 8,12,16 bits implemented\n",Info.tiBps);
+ fprintf(stderr,"Aborting\n");
+ return NULL;
+ }
+ }
+
+ _TIFFfree(buf);
+ TIFFClose(tif);
+ }else if(Info.tiPhoto == 1) {
+ /* -->> -->> -->>
+ Black and White
+ <<-- <<-- <<-- */
+
+ numcomps = 1;
+ color_space = CLRSPC_GRAY;
+ /* initialize image components*/
+ memset(&cmptparm[0], 0, sizeof(opj_image_cmptparm_t));
+ cmptparm[0].prec = Info.tiBps;
+ cmptparm[0].bpp = Info.tiBps;
+ cmptparm[0].sgnd = 0;
+ cmptparm[0].dx = subsampling_dx;
+ cmptparm[0].dy = subsampling_dy;
+ cmptparm[0].w = w;
+ cmptparm[0].h = h;
+
+ /* create the image*/
+ image = opj_image_create(numcomps, &cmptparm[0], color_space);
+ if(!image) {
+ TIFFClose(tif);
+ return NULL;
+ }
+ /* set image offset and reference grid */
+ image->x0 = parameters->image_offset_x0;
+ image->y0 = parameters->image_offset_y0;
+ image->x1 = !image->x0 ? (w - 1) * subsampling_dx + 1 : image->x0 + (w - 1) * subsampling_dx + 1;
+ image->y1 = !image->y0 ? (h - 1) * subsampling_dy + 1 : image->y0 + (h - 1) * subsampling_dy + 1;
+
+ buf = _TIFFmalloc(TIFFStripSize(tif));
+ strip_size = 0;
+ strip_size = TIFFStripSize(tif);
+ index = 0;
+ imgsize = image->comps[0].w * image->comps[0].h ;
+ /* Read the Image components*/
+ for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) {
+ unsigned char *dat8;
+ int i, ssize;
+ ssize = TIFFReadEncodedStrip(tif, strip, buf, strip_size);
+ dat8 = (unsigned char*)buf;
+
+ if (Info.tiBps==12){
+ for (i=0; i<ssize; i+=3) { /* 12 bits per pixel*/
+ if(index < imgsize){
+ image->comps[0].data[index] = ( dat8[i+0]<<4 ) |(dat8[i+1]>>4) ;
+ image->comps[0].data[index+1] = ((dat8[i+1]& 0x0f)<< 8) | dat8[i+2];
+ index+=2;
+ }else
+ break;
+ }
+ }
+ else if( Info.tiBps==16){
+ for (i=0; i<ssize; i+=2) { /* 16 bits per pixel */
+ if(index < imgsize){
+ image->comps[0].data[index] = ( dat8[i+1] << 8 ) | dat8[i+0];
+ index++;
+ }else
+ break;
+ }
+ }
+ else if ( Info.tiBps==8){
+ for (i=0; i<ssize; i+=1) { /* 8 bits per pixel */
+ if(index < imgsize){
+ image->comps[0].data[index] = dat8[i+0];
+ index++;
+ }else
+ break;
+ }
+ }
+ else{
+ fprintf(stderr,"TIFF file creation. Bits=%d, Only 8,12,16 bits implemented\n",Info.tiBps);
+ fprintf(stderr,"Aborting\n");
+ return NULL;
+ }
+ }
+
+ _TIFFfree(buf);
+ TIFFClose(tif);
+ }else{
+ fprintf(stderr,"TIFF file creation. Bad color format. Only RGB & Grayscale has been implemented\n");
+ fprintf(stderr,"Aborting\n");
+ return NULL;
+ }
+ return image;
+}
+
+/* -->> -->> -->> -->>
+
+ RAW IMAGE FORMAT
+
+ <<-- <<-- <<-- <<-- */
+
+opj_image_t* rawtoimage(const char *filename, opj_cparameters_t *parameters, raw_cparameters_t *raw_cp) {
+ int subsampling_dx = parameters->subsampling_dx;
+ int subsampling_dy = parameters->subsampling_dy;
+
+ FILE *f = NULL;
+ int i, compno, numcomps, w, h;
+ OPJ_COLOR_SPACE color_space;
+ opj_image_cmptparm_t *cmptparm;
+ opj_image_t * image = NULL;
+ unsigned short ch;
+
+ if((! (raw_cp->rawWidth & raw_cp->rawHeight & raw_cp->rawComp & raw_cp->rawBitDepth)) == 0)
+ {
+ fprintf(stderr,"\nError: invalid raw image parameters\n");
+ fprintf(stderr,"Please use the Format option -F:\n");
+ fprintf(stderr,"-F rawWidth,rawHeight,rawComp,rawBitDepth,s/u (Signed/Unsigned)\n");
+ fprintf(stderr,"Example: -i lena.raw -o lena.j2k -F 512,512,3,8,u\n");
+ fprintf(stderr,"Aborting\n");
+ return NULL;
+ }
+
+ f = fopen(filename, "rb");
+ if (!f) {
+ fprintf(stderr, "Failed to open %s for reading !!\n", filename);
+ fprintf(stderr,"Aborting\n");
+ return NULL;
+ }
+ numcomps = raw_cp->rawComp;
+ color_space = CLRSPC_SRGB;
+ w = raw_cp->rawWidth;
+ h = raw_cp->rawHeight;
+ cmptparm = (opj_image_cmptparm_t*) malloc(numcomps * sizeof(opj_image_cmptparm_t));
+
+ /* initialize image components */
+ memset(&cmptparm[0], 0, numcomps * sizeof(opj_image_cmptparm_t));
+ for(i = 0; i < numcomps; i++) {
+ cmptparm[i].prec = raw_cp->rawBitDepth;
+ cmptparm[i].bpp = raw_cp->rawBitDepth;
+ cmptparm[i].sgnd = raw_cp->rawSigned;
+ cmptparm[i].dx = subsampling_dx;
+ cmptparm[i].dy = subsampling_dy;
+ cmptparm[i].w = w;
+ cmptparm[i].h = h;
+ }
+ /* create the image */
+ image = opj_image_create(numcomps, &cmptparm[0], color_space);
+ if(!image) {
+ fclose(f);
+ return NULL;
+ }
+ /* set image offset and reference grid */
+ image->x0 = parameters->image_offset_x0;
+ image->y0 = parameters->image_offset_y0;
+ image->x1 = parameters->image_offset_x0 + (w - 1) * subsampling_dx + 1;
+ image->y1 = parameters->image_offset_y0 + (h - 1) * subsampling_dy + 1;
+
+ if(raw_cp->rawBitDepth <= 8)
+ {
+ unsigned char value = 0;
+ for(compno = 0; compno < numcomps; compno++) {
+ for (i = 0; i < w * h; i++) {
+ if (!fread(&value, 1, 1, f)) {
+ fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
+ return NULL;
+ }
+ image->comps[compno].data[i] = raw_cp->rawSigned?(char)value:value;
+ }
+ }
+ }
+ else if(raw_cp->rawBitDepth <= 16)
+ {
+ unsigned short value;
+ for(compno = 0; compno < numcomps; compno++) {
+ for (i = 0; i < w * h; i++) {
+ unsigned char temp;
+ if (!fread(&temp, 1, 1, f)) {
+ fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
+ return NULL;
+ }
+ value = temp << 8;
+ if (!fread(&temp, 1, 1, f)) {
+ fprintf(stderr,"Error reading raw file. End of file probably reached.\n");
+ return NULL;
+ }
+ value += temp;
+ image->comps[compno].data[i] = raw_cp->rawSigned?(short)value:value;
+ }
+ }
+ }
+ else {
+ fprintf(stderr,"OpenJPEG cannot encode raw components with bit depth higher than 16 bits.\n");
+ return NULL;
+ }
+
+ if (fread(&ch, 1, 1, f)) {
+ fprintf(stderr,"Warning. End of raw file not reached... processing anyway\n");
+ }
+ fclose(f);
+
+ return image;
+}
+
+int imagetoraw(opj_image_t * image, const char *outfile)
+{
+ FILE *rawFile = NULL;
+ int compno;
+ int w, h;
+ int line, row;
+ int *ptr;
+
+ if((image->numcomps * image->x1 * image->y1) == 0)
+ {
+ fprintf(stderr,"\nError: invalid raw image parameters\n");
+ return 1;
+ }
+
+ rawFile = fopen(outfile, "wb");
+ if (!rawFile) {
+ fprintf(stderr, "Failed to open %s for writing !!\n", outfile);
+ return 1;
+ }
+
+ fprintf(stdout,"Raw image characteristics: %d components\n", image->numcomps);
+
+ for(compno = 0; compno < image->numcomps; compno++)
+ {
+ fprintf(stdout,"Component %d characteristics: %dx%dx%d %s\n", compno, image->comps[compno].w,
+ image->comps[compno].h, image->comps[compno].prec, image->comps[compno].sgnd==1 ? "signed": "unsigned");
+
+ w = image->comps[compno].w;
+ h = image->comps[compno].h;
+
+ if(image->comps[compno].prec <= 8)
+ {
+ if(image->comps[compno].sgnd == 1)
+ {
+ signed char curr;
+ int mask = (1 << image->comps[compno].prec) - 1;
+ ptr = image->comps[compno].data;
+ for (line = 0; line < h; line++) {
+ for(row = 0; row < w; row++) {
+ curr = (signed char) (*ptr & mask);
+ fwrite(&curr, sizeof(signed char), 1, rawFile);
+ ptr++;
+ }
+ }
+ }
+ else if(image->comps[compno].sgnd == 0)
+ {
+ unsigned char curr;
+ int mask = (1 << image->comps[compno].prec) - 1;
+ ptr = image->comps[compno].data;
+ for (line = 0; line < h; line++) {
+ for(row = 0; row < w; row++) {
+ curr = (unsigned char) (*ptr & mask);
+ fwrite(&curr, sizeof(unsigned char), 1, rawFile);
+ ptr++;
+ }
+ }
+ }
+ }
+ else if(image->comps[compno].prec <= 16)
+ {
+ if(image->comps[compno].sgnd == 1)
+ {
+ signed short int curr;
+ int mask = (1 << image->comps[compno].prec) - 1;
+ ptr = image->comps[compno].data;
+ for (line = 0; line < h; line++) {
+ for(row = 0; row < w; row++) {
+ unsigned char temp;
+ curr = (signed short int) (*ptr & mask);
+ temp = (unsigned char) (curr >> 8);
+ fwrite(&temp, 1, 1, rawFile);
+ temp = (unsigned char) curr;
+ fwrite(&temp, 1, 1, rawFile);
+ ptr++;
+ }
+ }
+ }
+ else if(image->comps[compno].sgnd == 0)
+ {
+ unsigned short int curr;
+ int mask = (1 << image->comps[compno].prec) - 1;
+ ptr = image->comps[compno].data;
+ for (line = 0; line < h; line++) {
+ for(row = 0; row < w; row++) {
+ unsigned char temp;
+ curr = (unsigned short int) (*ptr & mask);
+ temp = (unsigned char) (curr >> 8);
+ fwrite(&temp, 1, 1, rawFile);
+ temp = (unsigned char) curr;
+ fwrite(&temp, 1, 1, rawFile);
+ ptr++;
+ }
+ }
+ }
+ }
+ else if (image->comps[compno].prec <= 32)
+ {
+ fprintf(stderr,"More than 16 bits per component no handled yet\n");
+ return 1;
+ }
+ else
+ {
+ fprintf(stderr,"Error: invalid precision: %d\n", image->comps[compno].prec);
+ return 1;
+ }
+ }
+ fclose(rawFile);
+ return 0;
+}
+
+opj_image_t *pngtoimage(const char *read_idf, opj_cparameters_t * params)
+#ifdef WIN32
+{
+ printf("Error. PNG format is not yet handled under windows\n");
+ return NULL;
+}
+#else
+{
+ png_bytep row;
+ png_structp png;
+ png_infop info;
+ double gamma, display_exponent;
+ int bit_depth, interlace_type, compression_type, filter_type;
+ int unit, pass, nr_passes;
+ png_uint_32 resx, resy;
+ unsigned int i, max, src_w;
+ png_uint_32 width, height;
+ int color_type, has_alpha;
+ unsigned char *png_buf, *s;
+ FILE *reader;
+/* j2k: */
+ opj_image_t *image;
+ opj_image_cmptparm_t cmptparm[4];
+ int sub_dx, sub_dy;
+ unsigned int nr_comp;
+ int *r, *g, *b, *a;
+
+ if ((reader = fopen(read_idf, "rb")) == NULL) {
+ fprintf(stderr, "pngtoimage: can not open %s\n", read_idf);
+ return NULL;
+ }
+ nr_passes = 0;
+ png_buf = NULL;
+
+/* libpng-VERSION/example.c:
+ * PC : screen_gamma = 2.2;
+ * Mac: screen_gamma = 1.7 or 1.0;
+*/
+ display_exponent = 2.2;
+
+ if ((png = png_create_read_struct(PNG_LIBPNG_VER_STRING,
+ NULL, NULL, NULL)) == NULL)
+ goto fin;
+ if ((info = png_create_info_struct(png)) == NULL)
+ goto fin;
+
+ if (setjmp(png_jmpbuf(png)))
+ goto fin;
+
+ png_init_io(png, reader);
+ png_read_info(png, info);
+
+ png_get_IHDR(png, info, &width, &height,
+ &bit_depth, &color_type, &interlace_type,
+ &compression_type, &filter_type);
+
+ if (color_type == PNG_COLOR_TYPE_PALETTE)
+ png_set_expand(png);
+ else if (color_type == PNG_COLOR_TYPE_GRAY && bit_depth < 8)
+ png_set_expand(png);
+
+ if (png_get_valid(png, info, PNG_INFO_tRNS))
+ png_set_expand(png);
+
+ if (bit_depth == 16)
+ png_set_strip_16(png);
+
+/* GRAY => RGB; GRAY_ALPHA => RGBA
+*/
+ if (color_type == PNG_COLOR_TYPE_GRAY
+ || color_type == PNG_COLOR_TYPE_GRAY_ALPHA) {
+ png_set_gray_to_rgb(png);
+ color_type =
+ (color_type == PNG_COLOR_TYPE_GRAY ? PNG_COLOR_TYPE_RGB :
+ PNG_COLOR_TYPE_RGB_ALPHA);
+ }
+ if (!png_get_gAMA(png, info, &gamma))
+ gamma = 0.45455;
+
+ png_set_gamma(png, display_exponent, gamma);
+
+ nr_passes = png_set_interlace_handling(png);
+
+ png_read_update_info(png, info);
+
+ png_get_pHYs(png, info, &resx, &resy, &unit);
+
+ color_type = png_get_color_type(png, info);
+
+ has_alpha = (color_type == PNG_COLOR_TYPE_RGB_ALPHA);
+
+ if (has_alpha)
+ nr_comp = 4;
+ else
+ nr_comp = 3;
+
+ src_w = width * nr_comp;
+ png_buf = (unsigned char *) malloc(src_w * height);
+
+ if (nr_passes == 0)
+ nr_passes = 1;
+
+ for (pass = 0; pass < nr_passes; pass++) {
+ s = png_buf;
+
+ for (i = 0; i < height; i++) {
+/* libpng.3:
+ * If you want the "sparkle" effect, just call png_read_rows() as
+ * normal, with the third parameter NULL.
+*/
+ png_read_rows(png, &s, NULL, 1);
+
+ s += src_w;
+ }
+ }
+ memset(&cmptparm, 0, 4 * sizeof(opj_image_cmptparm_t));
+
+ sub_dx = params->subsampling_dx;
+ sub_dy = params->subsampling_dy;
+
+ for (i = 0; i < nr_comp; ++i) {
+ cmptparm[i].prec = 8;
+ cmptparm[i].bpp = 8;
+ cmptparm[i].sgnd = 0;
+ cmptparm[i].dx = sub_dx;
+ cmptparm[i].dy = sub_dy;
+ cmptparm[i].w = width;
+ cmptparm[i].h = height;
+ }
+
+ image = opj_image_create(nr_comp, &cmptparm[0], CLRSPC_SRGB);
+
+ if (image == NULL)
+ goto fin;
+
+ image->x0 = params->image_offset_x0;
+ image->y0 = params->image_offset_y0;
+ image->x1 =
+ params->image_offset_x0 + (width - 1) * sub_dx + 1 + image->x0;
+ image->y1 =
+ params->image_offset_y0 + (height - 1) * sub_dy + 1 + image->y0;
+
+ r = image->comps[0].data;
+ g = image->comps[1].data;
+ b = image->comps[2].data;
+ a = image->comps[3].data;
+ s = png_buf;
+
+ max = width * height;
+
+ for (i = 0; i < max; ++i) {
+ *r++ = *s++;
+ *g++ = *s++;
+ *b++ = *s++;
+
+ if (has_alpha)
+ *a++ = *s++;
+ }
+
+ fin:
+ if (png)
+ png_destroy_read_struct(&png, &info, NULL);
+ if (png_buf)
+ free(png_buf);
+
+ fclose(reader);
+
+ return image;
+
+} /* pngtoimage() */
+#endif
+
+int imagetopng(opj_image_t * image, const char *write_idf)
+#ifdef WIN32
+{
+ printf("Error. PNG format is not yet handled under windows\n");
+ return -1;
+}
+#else
+{
+ FILE *writer;
+ png_structp png_ptr;
+ png_infop info_ptr;
+ int *rs, *gs, *bs, *as;
+ unsigned char *row_buf, *d;
+ int fails, mono, graya, rgb, rgba;
+ int width, height, nr_colors, color_type;
+ int bit_depth, adjust, x, y;
+ png_color_8 sig_bit;
+
+ writer = fopen(write_idf, "wb");
+
+ if (writer == NULL)
+ return 1;
+
+ info_ptr = NULL;
+ fails = 1;
+
+/* Create and initialize the png_struct with the desired error handler
+ * functions. If you want to use the default stderr and longjump method,
+ * you can supply NULL for the last three parameters. We also check that
+ * the library version is compatible with the one used at compile time,
+ * in case we are using dynamically linked libraries. REQUIRED.
+*/
+ png_ptr =
+ png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
+/*png_voidp user_error_ptr, user_error_fn, user_warning_fn); */
+
+ if (png_ptr == NULL)
+ goto fin;
+
+/* Allocate/initialize the image information data. REQUIRED
+*/
+ info_ptr = png_create_info_struct(png_ptr);
+
+ if (info_ptr == NULL)
+ goto fin;
+
+/* Set error handling. REQUIRED if you are not supplying your own
+ * error handling functions in the png_create_write_struct() call.
+*/
+ if (setjmp(png_jmpbuf(png_ptr)))
+ goto fin;
+
+/* I/O initialization functions is REQUIRED
+*/
+ png_init_io(png_ptr, writer);
+
+/* Set the image information here. Width and height are up to 2^31,
+ * bit_depth is one of 1, 2, 4, 8, or 16, but valid values also depend on
+ * the color_type selected. color_type is one of PNG_COLOR_TYPE_GRAY,
+ * PNG_COLOR_TYPE_GRAY_ALPHA, PNG_COLOR_TYPE_PALETTE, PNG_COLOR_TYPE_RGB,
+ * or PNG_COLOR_TYPE_RGB_ALPHA. interlace is either PNG_INTERLACE_NONE or
+ * PNG_INTERLACE_ADAM7, and the compression_type and filter_type MUST
+ * currently be PNG_COMPRESSION_TYPE_BASE and PNG_FILTER_TYPE_BASE.
+ * REQUIRED
+*/
+ png_set_compression_level(png_ptr, Z_BEST_COMPRESSION);
+
+ mono = graya = rgb = rgba = adjust = 0;
+
+ nr_colors = image->numcomps;
+ width = image->comps[0].w;
+ height = image->comps[0].h;
+ rs = image->comps[0].data;
+
+ if (nr_colors == 2) {
+ graya = 1;
+ color_type = PNG_COLOR_TYPE_GRAY_ALPHA;
+ sig_bit.gray = image->comps[0].prec;
+ bit_depth = image->comps[0].prec;
+ as = image->comps[1].data;
+ } else if (nr_colors == 3) {
+ rgb = 1;
+ color_type = PNG_COLOR_TYPE_RGB;
+ sig_bit.red = image->comps[0].prec;
+ sig_bit.green = image->comps[1].prec;
+ sig_bit.blue = image->comps[2].prec;
+ bit_depth = image->comps[0].prec;
+ gs = image->comps[1].data;
+ bs = image->comps[2].data;
+ if (image->comps[0].sgnd)
+ adjust = 1 << (image->comps[0].prec - 1);
+ } else if (nr_colors == 4) {
+ rgb = rgba = 1;
+ color_type = PNG_COLOR_TYPE_RGB_ALPHA;
+ sig_bit.red = image->comps[0].prec;
+ sig_bit.green = image->comps[1].prec;
+ sig_bit.blue = image->comps[2].prec;
+ sig_bit.alpha = image->comps[3].prec;
+ bit_depth = image->comps[0].prec;
+ gs = image->comps[1].data;
+ bs = image->comps[2].data;
+ as = image->comps[3].data;
+ if (image->comps[0].sgnd)
+ adjust = 1 << (image->comps[0].prec - 1);
+ } else {
+ mono = 1;
+ color_type = PNG_COLOR_TYPE_GRAY;
+ sig_bit.gray = image->comps[0].prec;
+ bit_depth = image->comps[0].prec;
+ }
+ png_set_sBIT(png_ptr, info_ptr, &sig_bit);
+
+ png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth,
+ color_type,
+ PNG_INTERLACE_NONE,
+ PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
+
+#ifdef HIDDEN_CODE
+/* Optional gamma chunk is strongly suggested if you have any guess
+ * as to the correct gamma of the image.
+*/
+
+ if (gamma > 0.0) {
+ png_set_gAMA(png_ptr, info_ptr, gamma);
+ }
+#endif /* HIDDEN_CODE */
+#ifdef HIDDEN_CODE
+ if (have_bg) {
+ png_color_16 background;
+
+ background.red = bg_red;
+ background.green = bg_green;
+ background.blue = bg_blue;
+
+ png_set_bKGD(png_ptr, info_ptr, &background);
+ }
+#endif /* HIDDEN_CODE */
+ png_write_info(png_ptr, info_ptr);
+
+ png_set_packing(png_ptr);
+
+ row_buf = (unsigned char *) malloc(width * nr_colors);
+
+ for (y = 0; y < height; ++y) {
+ d = row_buf;
+
+ for (x = 0; x < width; ++x) {
+ if (mono) {
+ *d++ = (unsigned char) *rs++;
+ }
+ if (graya) {
+ *d++ = (unsigned char) *rs++;
+ *d++ = (unsigned char) *as++;
+ } else if (rgb) {
+ *d++ = (unsigned char) (*rs++ + adjust);
+ *d++ = (unsigned char) (*gs++ + adjust);
+ *d++ = (unsigned char) (*bs++ + adjust);
+
+ if (rgba)
+ *d++ = (unsigned char) (*as++ + adjust);
+ }
+ } /* for(x) */
+
+ png_write_row(png_ptr, row_buf);
+
+ } /* for(y) */
+
+ png_write_end(png_ptr, info_ptr);
+
+ fails = 0;
+
+ fin:
+
+ if (png_ptr) {
+ png_destroy_write_struct(&png_ptr, &info_ptr);
+ }
+ fclose(writer);
+
+ return fails;
+}
+#endif
projects / openjpeg.git / blobdiff