/* * The copyright in this software is being made available under the 2-clauses * BSD License, included below. This software may be subject to other third * party and contributor rights, including patent rights, and no such rights * are granted under this license. * * Copyright (c) 2002-2014, Universite catholique de Louvain (UCL), Belgium * Copyright (c) 2002-2014, Professor Benoit Macq * Copyright (c) 2001-2003, David Janssens * Copyright (c) 2002-2003, Yannick Verschueren * Copyright (c) 2003-2007, Francois-Olivier Devaux * Copyright (c) 2003-2014, 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 * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS `AS IS' * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include "opj_apps_config.h" #include #include #include #include #ifdef OPJ_HAVE_LIBTIFF #include #endif /* OPJ_HAVE_LIBTIFF */ #ifdef OPJ_HAVE_LIBPNG #include #include #endif /* OPJ_HAVE_LIBPNG */ #include "openjpeg.h" #include "convert.h" /* * Get logarithm of an integer and round downwards. * * log2(a) */ static int int_floorlog2(int a) { int l; for (l = 0; a > 1; l++) { a >>= 1; } return l; } /* -->> -->> -->> -->> TGA IMAGE FORMAT <<-- <<-- <<-- <<-- */ #ifdef INFORMATION_ONLY /* TGA header definition. */ struct tga_header { unsigned char id_length; /* Image id field length */ unsigned char colour_map_type; /* Colour map type */ unsigned char image_type; /* Image type */ /* ** Colour map specification */ unsigned short colour_map_index; /* First entry index */ unsigned short colour_map_length; /* Colour map length */ unsigned char colour_map_entry_size; /* Colour map entry size */ /* ** Image specification */ unsigned short x_origin; /* x origin of image */ unsigned short y_origin; /* u origin of image */ unsigned short image_width; /* Image width */ unsigned short image_height; /* Image height */ unsigned char pixel_depth; /* Pixel depth */ unsigned char image_desc; /* Image descriptor */ }; #endif /* INFORMATION_ONLY */ static unsigned short get_ushort(unsigned short val) { #ifdef OPJ_BIG_ENDIAN return (((val & 0xff) << 8) + (val >> 8)); #else return (val); #endif } #define TGA_HEADER_SIZE 18 static int tga_readheader(FILE *fp, unsigned int *bits_per_pixel, unsigned int *width, unsigned int *height, int *flip_image) { int palette_size; unsigned char *tga ; unsigned char id_len, cmap_type, image_type; unsigned char pixel_depth, image_desc; unsigned short cmap_index, cmap_len, cmap_entry_size; unsigned short x_origin, y_origin, image_w, image_h; if (!bits_per_pixel || !width || !height || !flip_image) { return 0; } tga = (unsigned char*)malloc(18); if (fread(tga, TGA_HEADER_SIZE, 1, fp) != 1) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); free(tga); return 0 ; } id_len = (unsigned char)tga[0]; cmap_type = (unsigned char)tga[1]; image_type = (unsigned char)tga[2]; cmap_index = get_ushort(*(unsigned short*)(&tga[3])); cmap_len = get_ushort(*(unsigned short*)(&tga[5])); cmap_entry_size = (unsigned char)tga[7]; x_origin = get_ushort(*(unsigned short*)(&tga[8])); y_origin = get_ushort(*(unsigned short*)(&tga[10])); image_w = get_ushort(*(unsigned short*)(&tga[12])); image_h = get_ushort(*(unsigned short*)(&tga[14])); pixel_depth = (unsigned char)tga[16]; image_desc = (unsigned char)tga[17]; free(tga); *bits_per_pixel = (unsigned int)pixel_depth; *width = (unsigned int)image_w; *height = (unsigned int)image_h; /* Ignore tga identifier, if present ... */ if (id_len) { unsigned char *id = (unsigned char *) malloc(id_len); if (!fread(id, id_len, 1, fp)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); free(id); return 0 ; } free(id); } /* Test for compressed formats ... not yet supported ... // Note :- 9 - RLE encoded palettized. // 10 - RLE encoded RGB. */ if (image_type > 8) { fprintf(stderr, "Sorry, compressed tga files are not currently supported.\n"); return 0 ; } *flip_image = !(image_desc & 32); /* Palettized formats are not yet supported, skip over the palette, if present ... */ palette_size = cmap_len * (cmap_entry_size / 8); if (palette_size > 0) { fprintf(stderr, "File contains a palette - not yet supported."); fseek(fp, palette_size, SEEK_CUR); } return 1; } #ifdef OPJ_BIG_ENDIAN static inline uint16_t swap16(uint16_t x) { return (((x & 0x00ffU) << 8) | ((x & 0xff00U) >> 8)); } #endif static int tga_writeheader(FILE *fp, int bits_per_pixel, int width, int height, opj_bool flip_image) { unsigned short image_w, image_h, us0; unsigned char uc0, image_type; unsigned char pixel_depth, image_desc; if (!bits_per_pixel || !width || !height) { return 0; } pixel_depth = 0; if (bits_per_pixel < 256) { pixel_depth = (unsigned char)bits_per_pixel; } else { fprintf(stderr, "ERROR: Wrong bits per pixel inside tga_header"); return 0; } uc0 = 0; if (fwrite(&uc0, 1, 1, fp) != 1) { goto fails; /* id_length */ } if (fwrite(&uc0, 1, 1, fp) != 1) { goto fails; /* colour_map_type */ } image_type = 2; /* Uncompressed. */ if (fwrite(&image_type, 1, 1, fp) != 1) { goto fails; } us0 = 0; if (fwrite(&us0, 2, 1, fp) != 1) { goto fails; /* colour_map_index */ } if (fwrite(&us0, 2, 1, fp) != 1) { goto fails; /* colour_map_length */ } if (fwrite(&uc0, 1, 1, fp) != 1) { goto fails; /* colour_map_entry_size */ } if (fwrite(&us0, 2, 1, fp) != 1) { goto fails; /* x_origin */ } if (fwrite(&us0, 2, 1, fp) != 1) { goto fails; /* y_origin */ } image_w = (unsigned short)width; image_h = (unsigned short) height; #ifndef OPJ_BIG_ENDIAN if (fwrite(&image_w, 2, 1, fp) != 1) { goto fails; } if (fwrite(&image_h, 2, 1, fp) != 1) { goto fails; } #else image_w = swap16(image_w); image_h = swap16(image_h); if (fwrite(&image_w, 2, 1, fp) != 1) { goto fails; } if (fwrite(&image_h, 2, 1, fp) != 1) { goto fails; } #endif if (fwrite(&pixel_depth, 1, 1, fp) != 1) { goto fails; } image_desc = 8; /* 8 bits per component. */ if (flip_image) { image_desc |= 32; } if (fwrite(&image_desc, 1, 1, fp) != 1) { goto fails; } return 1; fails: fputs("\nwrite_tgaheader: write ERROR\n", stderr); return 0; } opj_image_t* tgatoimage(const char *filename, opj_cparameters_t *parameters) { FILE *f; opj_image_t *image; unsigned int image_width, image_height, pixel_bit_depth; unsigned int x, y; int flip_image = 0; opj_image_cmptparm_t cmptparm[4]; /* maximum 4 components */ int numcomps; OPJ_COLOR_SPACE color_space; opj_bool mono ; opj_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++) { unsigned char r, g, b; if (!fread(&b, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); opj_image_destroy(image); return NULL; } if (!fread(&g, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); opj_image_destroy(image); return NULL; } if (!fread(&r, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); opj_image_destroy(image); return NULL; } 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++) { unsigned char r, g, b, a; if (!fread(&b, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); opj_image_destroy(image); return NULL; } if (!fread(&g, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); opj_image_destroy(image); return NULL; } if (!fread(&r, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); opj_image_destroy(image); return NULL; } if (!fread(&a, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); opj_image_destroy(image); return NULL; } 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; opj_bool write_alpha; int i, adjustR, adjustG, adjustB; unsigned int alpha_channel; float r, g, b, a; unsigned char value; float scale; FILE *fdest; size_t res; 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, OPJ_TRUE)) { return 1; } alpha_channel = image->numcomps - 1; scale = 255.0f / (float)((1 << image->comps[0].prec) - 1); adjustR = (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0); adjustG = (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0); adjustB = (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0); for (y = 0; y < height; y++) { unsigned int index = y * width; for (x = 0; x < width; x++, index++) { r = (float)(image->comps[0].data[index] + adjustR); if (image->numcomps > 2) { g = (float)(image->comps[1].data[index] + adjustG); b = (float)(image->comps[2].data[index] + adjustB); } else { /* Greyscale ... */ g = r; b = r; } /* TGA format writes BGR ... */ value = (unsigned char)(b * scale); res = fwrite(&value, 1, 1, fdest); if (res < 1) { fprintf(stderr, "failed to write 1 byte for %s\n", outfile); return 1; } value = (unsigned char)(g * scale); res = fwrite(&value, 1, 1, fdest); if (res < 1) { fprintf(stderr, "failed to write 1 byte for %s\n", outfile); return 1; } value = (unsigned char)(r * scale); res = fwrite(&value, 1, 1, fdest); if (res < 1) { fprintf(stderr, "failed to write 1 byte for %s\n", outfile); return 1; } if (write_alpha) { a = (float)(image->comps[alpha_channel].data[index]); value = (unsigned char)(a * scale); res = fwrite(&value, 1, 1, fdest); if (res < 1) { fprintf(stderr, "failed to write 1 byte for %s\n", outfile); return 1; } } } } return 0; } /* -->> -->> -->> -->> BMP IMAGE FORMAT <<-- <<-- <<-- <<-- */ /* WORD defines a two byte word */ typedef unsigned short int WORD; /* DWORD defines a four byte word */ typedef unsigned int DWORD; typedef struct { WORD bfType; /* 'BM' for Bitmap (19776) */ DWORD bfSize; /* Size of the file */ WORD bfReserved1; /* Reserved : 0 */ WORD bfReserved2; /* Reserved : 0 */ DWORD bfOffBits; /* Offset */ } BITMAPFILEHEADER_t; typedef struct { DWORD biSize; /* Size of the structure in bytes */ DWORD biWidth; /* Width of the image in pixels */ DWORD biHeight; /* Height of the image in pixels */ WORD biPlanes; /* 1 */ WORD biBitCount; /* Number of color bits by pixels */ DWORD biCompression; /* Type of encoding 0: none 1: RLE8 2: RLE4 */ DWORD biSizeImage; /* Size of the image in bytes */ DWORD biXpelsPerMeter; /* Horizontal (X) resolution in pixels/meter */ DWORD biYpelsPerMeter; /* Vertical (Y) resolution in pixels/meter */ DWORD biClrUsed; /* Number of color used in the image (0: ALL) */ DWORD biClrImportant; /* Number of important color (0: ALL) */ } BITMAPINFOHEADER_t; opj_image_t* bmptoimage(const char *filename, opj_cparameters_t *parameters) { int subsampling_dx = parameters->subsampling_dx; int subsampling_dy = parameters->subsampling_dy; int i, numcomps, w, h; OPJ_COLOR_SPACE color_space; opj_image_cmptparm_t cmptparm[3]; /* maximum of 3 components */ opj_image_t * image = NULL; FILE *IN; BITMAPFILEHEADER_t File_h; BITMAPINFOHEADER_t Info_h; unsigned char *RGB; unsigned char *table_R, *table_G, *table_B; unsigned int j, PAD = 0; int x, y, index; int gray_scale = 1; int has_color; DWORD W, H; IN = fopen(filename, "rb"); if (!IN) { fprintf(stderr, "Failed to open %s for reading !!\n", filename); return NULL; } File_h.bfType = getc(IN); File_h.bfType = (getc(IN) << 8) + File_h.bfType; if (File_h.bfType != 19778) { fprintf(stderr, "Error, not a BMP file!\n"); fclose(IN); return NULL; } /* FILE HEADER */ /* ------------- */ File_h.bfSize = getc(IN); File_h.bfSize = (getc(IN) << 8) + File_h.bfSize; File_h.bfSize = (getc(IN) << 16) + File_h.bfSize; File_h.bfSize = (getc(IN) << 24) + File_h.bfSize; File_h.bfReserved1 = getc(IN); File_h.bfReserved1 = (getc(IN) << 8) + File_h.bfReserved1; File_h.bfReserved2 = getc(IN); File_h.bfReserved2 = (getc(IN) << 8) + File_h.bfReserved2; File_h.bfOffBits = getc(IN); File_h.bfOffBits = (getc(IN) << 8) + File_h.bfOffBits; File_h.bfOffBits = (getc(IN) << 16) + File_h.bfOffBits; File_h.bfOffBits = (getc(IN) << 24) + File_h.bfOffBits; /* INFO HEADER */ /* ------------- */ Info_h.biSize = getc(IN); Info_h.biSize = (getc(IN) << 8) + Info_h.biSize; Info_h.biSize = (getc(IN) << 16) + Info_h.biSize; Info_h.biSize = (getc(IN) << 24) + Info_h.biSize; if (Info_h.biSize != 40) { fprintf(stderr, "Error, unknown BMP header size %d\n", Info_h.biSize); fclose(IN); return NULL; } Info_h.biWidth = getc(IN); Info_h.biWidth = (getc(IN) << 8) + Info_h.biWidth; Info_h.biWidth = (getc(IN) << 16) + Info_h.biWidth; Info_h.biWidth = (getc(IN) << 24) + Info_h.biWidth; w = Info_h.biWidth; Info_h.biHeight = getc(IN); Info_h.biHeight = (getc(IN) << 8) + Info_h.biHeight; Info_h.biHeight = (getc(IN) << 16) + Info_h.biHeight; Info_h.biHeight = (getc(IN) << 24) + Info_h.biHeight; h = Info_h.biHeight; Info_h.biPlanes = getc(IN); Info_h.biPlanes = (getc(IN) << 8) + Info_h.biPlanes; Info_h.biBitCount = getc(IN); Info_h.biBitCount = (getc(IN) << 8) + Info_h.biBitCount; Info_h.biCompression = getc(IN); Info_h.biCompression = (getc(IN) << 8) + Info_h.biCompression; Info_h.biCompression = (getc(IN) << 16) + Info_h.biCompression; Info_h.biCompression = (getc(IN) << 24) + Info_h.biCompression; Info_h.biSizeImage = getc(IN); Info_h.biSizeImage = (getc(IN) << 8) + Info_h.biSizeImage; Info_h.biSizeImage = (getc(IN) << 16) + Info_h.biSizeImage; Info_h.biSizeImage = (getc(IN) << 24) + Info_h.biSizeImage; Info_h.biXpelsPerMeter = getc(IN); Info_h.biXpelsPerMeter = (getc(IN) << 8) + Info_h.biXpelsPerMeter; Info_h.biXpelsPerMeter = (getc(IN) << 16) + Info_h.biXpelsPerMeter; Info_h.biXpelsPerMeter = (getc(IN) << 24) + Info_h.biXpelsPerMeter; Info_h.biYpelsPerMeter = getc(IN); Info_h.biYpelsPerMeter = (getc(IN) << 8) + Info_h.biYpelsPerMeter; Info_h.biYpelsPerMeter = (getc(IN) << 16) + Info_h.biYpelsPerMeter; Info_h.biYpelsPerMeter = (getc(IN) << 24) + Info_h.biYpelsPerMeter; Info_h.biClrUsed = getc(IN); Info_h.biClrUsed = (getc(IN) << 8) + Info_h.biClrUsed; Info_h.biClrUsed = (getc(IN) << 16) + Info_h.biClrUsed; Info_h.biClrUsed = (getc(IN) << 24) + Info_h.biClrUsed; Info_h.biClrImportant = getc(IN); Info_h.biClrImportant = (getc(IN) << 8) + Info_h.biClrImportant; Info_h.biClrImportant = (getc(IN) << 16) + Info_h.biClrImportant; Info_h.biClrImportant = (getc(IN) << 24) + Info_h.biClrImportant; /* Read the data and store them in the OUT file */ if (Info_h.biBitCount == 24) { numcomps = 3; color_space = CLRSPC_SRGB; /* initialize image components */ memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t)); 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 = w; cmptparm[i].h = h; } /* create the image */ image = opj_image_create(numcomps, &cmptparm[0], color_space); if (!image) { fclose(IN); 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; /* set image data */ /* Place the cursor at the beginning of the image information */ fseek(IN, 0, SEEK_SET); fseek(IN, File_h.bfOffBits, SEEK_SET); W = Info_h.biWidth; H = Info_h.biHeight; /* PAD = 4 - (3 * W) % 4; */ /* PAD = (PAD == 4) ? 0 : PAD; */ PAD = (3 * W) % 4 ? 4 - (3 * W) % 4 : 0; RGB = (unsigned char *) malloc((3 * W + PAD) * H * sizeof(unsigned char)); if (fread(RGB, sizeof(unsigned char), (3 * W + PAD) * H, IN) != (3 * W + PAD) * H) { free(RGB); opj_image_destroy(image); fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); return NULL; } index = 0; for (y = 0; y < (int)H; y++) { unsigned char *scanline = RGB + (3 * W + PAD) * (H - 1 - y); for (x = 0; x < (int)W; x++) { unsigned char *pixel = &scanline[3 * x]; image->comps[0].data[index] = pixel[2]; /* R */ image->comps[1].data[index] = pixel[1]; /* G */ image->comps[2].data[index] = pixel[0]; /* B */ index++; } } free(RGB); }/* if (Info_h.biBitCount == 24) */ else if (Info_h.biBitCount == 8 && Info_h.biCompression == 0) { /*RGB */ if (Info_h.biClrUsed == 0) { Info_h.biClrUsed = 256; } else if (Info_h.biClrUsed > 256) { Info_h.biClrUsed = 256; } table_R = (unsigned char *) malloc(256 * sizeof(unsigned char)); table_G = (unsigned char *) malloc(256 * sizeof(unsigned char)); table_B = (unsigned char *) malloc(256 * sizeof(unsigned char)); has_color = 0; for (j = 0; j < Info_h.biClrUsed; j++) { table_B[j] = (unsigned char)getc(IN); table_G[j] = (unsigned char)getc(IN); table_R[j] = (unsigned char)getc(IN); getc(IN); has_color += !(table_R[j] == table_G[j] && table_R[j] == table_B[j]); } if (has_color) { gray_scale = 0; } /* Place the cursor at the beginning of the image information */ fseek(IN, 0, SEEK_SET); fseek(IN, File_h.bfOffBits, SEEK_SET); W = Info_h.biWidth; H = Info_h.biHeight; if (Info_h.biWidth % 2) { W++; } numcomps = gray_scale ? 1 : 3; color_space = gray_scale ? CLRSPC_GRAY : CLRSPC_SRGB; /* initialize image components */ memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t)); 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 = w; cmptparm[i].h = h; } /* create the image */ image = opj_image_create(numcomps, &cmptparm[0], color_space); if (!image) { fclose(IN); free(table_R); free(table_G); free(table_B); 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; /* set image data */ RGB = (unsigned char *) malloc(W * H * sizeof(unsigned char)); if (fread(RGB, sizeof(unsigned char), W * H, IN) != W * H) { free(table_R); free(table_G); free(table_B); free(RGB); opj_image_destroy(image); fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); return NULL; } if (gray_scale) { index = 0; for (j = 0; j < W * H; j++) { if ((j % W < W - 1 && Info_h.biWidth % 2) || !(Info_h.biWidth % 2)) { image->comps[0].data[index] = table_R[RGB[W * H - ((j) / (W) + 1) * W + (j) % (W)]]; index++; } } } else { index = 0; for (j = 0; j < W * H; j++) { if ((j % W < W - 1 && Info_h.biWidth % 2) || !(Info_h.biWidth % 2)) { unsigned char pixel_index = RGB[W * H - ((j) / (W) + 1) * W + (j) % (W)]; image->comps[0].data[index] = table_R[pixel_index]; image->comps[1].data[index] = table_G[pixel_index]; image->comps[2].data[index] = table_B[pixel_index]; index++; } } } free(RGB); free(table_R); free(table_G); free(table_B); }/* RGB8 */ else if (Info_h.biBitCount == 8 && Info_h.biCompression == 1) { /*RLE8*/ unsigned char *pix, *beyond; int *gray, *red, *green, *blue; unsigned int x, y, max; int i, c, c1; unsigned char uc; if (Info_h.biClrUsed == 0) { Info_h.biClrUsed = 256; } else if (Info_h.biClrUsed > 256) { Info_h.biClrUsed = 256; } table_R = (unsigned char *) malloc(256 * sizeof(unsigned char)); table_G = (unsigned char *) malloc(256 * sizeof(unsigned char)); table_B = (unsigned char *) malloc(256 * sizeof(unsigned char)); has_color = 0; for (j = 0; j < Info_h.biClrUsed; j++) { table_B[j] = (unsigned char)getc(IN); table_G[j] = (unsigned char)getc(IN); table_R[j] = (unsigned char)getc(IN); getc(IN); has_color += !(table_R[j] == table_G[j] && table_R[j] == table_B[j]); } if (has_color) { gray_scale = 0; } numcomps = gray_scale ? 1 : 3; color_space = gray_scale ? CLRSPC_GRAY : CLRSPC_SRGB; /* initialize image components */ memset(&cmptparm[0], 0, 3 * sizeof(opj_image_cmptparm_t)); 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 = w; cmptparm[i].h = h; } /* create the image */ image = opj_image_create(numcomps, &cmptparm[0], color_space); if (!image) { fclose(IN); free(table_R); free(table_G); free(table_B); 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; /* set image data */ /* Place the cursor at the beginning of the image information */ fseek(IN, 0, SEEK_SET); fseek(IN, File_h.bfOffBits, SEEK_SET); W = Info_h.biWidth; H = Info_h.biHeight; RGB = (unsigned char *) calloc(1, W * H * sizeof(unsigned char)); beyond = RGB + W * H; pix = beyond - W; x = y = 0; while (y < H) { c = getc(IN); if (c) { c1 = getc(IN); for (i = 0; i < c && x < W && pix < beyond; i++, x++, pix++) { *pix = (unsigned char)c1; } } else { c = getc(IN); if (c == 0x00) { /* EOL */ x = 0; ++y; pix = RGB + x + (H - y - 1) * W; } else if (c == 0x01) { /* EOP */ break; } else if (c == 0x02) { /* MOVE by dxdy */ c = getc(IN); x += c; c = getc(IN); y += c; pix = RGB + (H - y - 1) * W + x; } else { /* 03 .. 255 */ i = 0; for (; i < c && x < W && pix < beyond; i++, x++, pix++) { c1 = getc(IN); *pix = (unsigned char)c1; } if (c & 1) { /* skip padding byte */ getc(IN); } } } }/* while() */ if (gray_scale) { gray = image->comps[0].data; pix = RGB; max = W * H; while (max--) { uc = *pix++; *gray++ = table_R[uc]; } } else { /*int *red, *green, *blue;*/ red = image->comps[0].data; green = image->comps[1].data; blue = image->comps[2].data; pix = RGB; max = W * H; while (max--) { uc = *pix++; *red++ = table_R[uc]; *green++ = table_G[uc]; *blue++ = table_B[uc]; } } free(RGB); free(table_R); free(table_G); free(table_B); }/* RLE8 */ else { fprintf(stderr, "Other system than 24 bits/pixels or 8 bits (no RLE coding) " "is not yet implemented [%d]\n", Info_h.biBitCount); } fclose(IN); return image; } int imagetobmp(opj_image_t * image, const char *outfile) { int w, h; int i, pad; FILE *fdest = NULL; int adjustR, adjustG, adjustB; if (image->comps[0].prec < 8) { fprintf(stderr, "Unsupported precision: %d\n", image->comps[0].prec); return 1; } 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) { /* -->> -->> -->> -->> 24 bits color <<-- <<-- <<-- <<-- */ fdest = fopen(outfile, "wb"); if (!fdest) { fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile); return 1; } w = image->comps[0].w; h = image->comps[0].h; fprintf(fdest, "BM"); /* FILE HEADER */ /* ------------- */ fprintf(fdest, "%c%c%c%c", (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)((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 * 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); 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); r = ((r >> adjustR) + ((r >> (adjustR - 1)) % 2)); if (r > 255) { r = 255; } else if (r < 0) { r = 0; } rc = (unsigned char)r; 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); g = ((g >> adjustG) + ((g >> (adjustG - 1)) % 2)); if (g > 255) { g = 255; } else if (g < 0) { g = 0; } gc = (unsigned char)g; 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); b = ((b >> adjustB) + ((b >> (adjustB - 1)) % 2)); if (b > 255) { b = 255; } else if (b < 0) { b = 0; } bc = (unsigned char)b; fprintf(fdest, "%c%c%c", bc, gc, rc); if ((i + 1) % w == 0) { for (pad = (3 * w) % 4 ? 4 - (3 * w) % 4 : 0; pad > 0; pad--) { /* ADD */ fprintf(fdest, "%c", 0); } } } fclose(fdest); } else { /* Gray-scale */ /* -->> -->> -->> -->> 8 bits non code (Gray scale) <<-- <<-- <<-- <<-- */ fdest = fopen(outfile, "wb"); w = image->comps[0].w; h = image->comps[0].h; fprintf(fdest, "BM"); /* FILE HEADER */ /* ------------- */ 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, ((54 + 1024) >> 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)((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)(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 < w * h; i++) { 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); r = ((r >> adjustR) + ((r >> (adjustR - 1)) % 2)); if (r > 255) { r = 255; } else if (r < 0) { r = 0; } fprintf(fdest, "%c", (unsigned char)r); if ((i + 1) % w == 0) { for (pad = w % 4 ? 4 - w % 4 : 0; pad > 0; pad--) { /* ADD */ fprintf(fdest, "%c", 0); } } } fclose(fdest); } return 0; } /* -->> -->> -->> -->> PGX IMAGE FORMAT <<-- <<-- <<-- <<-- */ static unsigned char readuchar(FILE * f) { unsigned char c1; if (!fread(&c1, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); return 0; } return c1; } static unsigned short readushort(FILE * f, int bigendian) { unsigned char c1, c2; if (!fread(&c1, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); return 0; } if (!fread(&c2, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); return 0; } if (bigendian) { return (c1 << 8) + c2; } else { return (c2 << 8) + c1; } } static unsigned int readuint(FILE * f, int bigendian) { unsigned char c1, c2, c3, c4; if (!fread(&c1, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); return 0; } if (!fread(&c2, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); return 0; } if (!fread(&c3, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); return 0; } if (!fread(&c4, 1, 1, f)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); return 0; } if (bigendian) { return (c1 << 24) + (c2 << 16) + (c3 << 8) + c4; } else { return (c4 << 24) + (c3 << 16) + (c2 << 8) + c1; } } opj_image_t* pgxtoimage(const char *filename, opj_cparameters_t *parameters) { FILE *f = NULL; int w, h, prec; int i, numcomps, max; OPJ_COLOR_SPACE color_space; opj_image_cmptparm_t cmptparm; /* maximum of 1 component */ opj_image_t * image = NULL; int adjustS, ushift, dshift, force8; char endian1, endian2, sign; char signtmp[32]; char temp[32]; int bigendian; opj_image_comp_t *comp = NULL; numcomps = 1; color_space = CLRSPC_GRAY; memset(&cmptparm, 0, sizeof(opj_image_cmptparm_t)); max = 0; f = fopen(filename, "rb"); if (!f) { fprintf(stderr, "Failed to open %s for reading !\n", filename); return NULL; } fseek(f, 0, SEEK_SET); if (fscanf(f, "PG%[ \t]%c%c%[ \t+-]%d%[ \t]%d%[ \t]%d", temp, &endian1, &endian2, signtmp, &prec, temp, &w, temp, &h) != 9) { fprintf(stderr, "ERROR: Failed to read the right number of element from the fscanf() function!\n"); return NULL; } i = 0; sign = '+'; while (signtmp[i] != '\0') { if (signtmp[i] == '-') { sign = '-'; } i++; } fgetc(f); if (endian1 == 'M' && endian2 == 'L') { bigendian = 1; } else if (endian2 == 'M' && endian1 == 'L') { bigendian = 0; } else { fprintf(stderr, "Bad pgx header, please check input file\n"); return NULL; } /* initialize image component */ cmptparm.x0 = parameters->image_offset_x0; cmptparm.y0 = parameters->image_offset_y0; cmptparm.w = !cmptparm.x0 ? (w - 1) * parameters->subsampling_dx + 1 : cmptparm.x0 + (w - 1) * parameters->subsampling_dx + 1; cmptparm.h = !cmptparm.y0 ? (h - 1) * parameters->subsampling_dy + 1 : cmptparm.y0 + (h - 1) * parameters->subsampling_dy + 1; if (sign == '-') { cmptparm.sgnd = 1; } else { cmptparm.sgnd = 0; } if (prec < 8) { force8 = 1; ushift = 8 - prec; dshift = prec - ushift; if (cmptparm.sgnd) { adjustS = (1 << (prec - 1)); } else { adjustS = 0; } cmptparm.sgnd = 0; prec = 8; } else { ushift = dshift = force8 = adjustS = 0; } cmptparm.prec = prec; cmptparm.bpp = prec; cmptparm.dx = parameters->subsampling_dx; cmptparm.dy = parameters->subsampling_dy; /* create the image */ image = opj_image_create(numcomps, &cmptparm, color_space); if (!image) { fclose(f); return NULL; } /* set image offset and reference grid */ image->x0 = cmptparm.x0; image->y0 = cmptparm.x0; image->x1 = cmptparm.w; image->y1 = cmptparm.h; /* set image data */ comp = &image->comps[0]; for (i = 0; i < w * h; i++) { int v; if (force8) { v = readuchar(f) + adjustS; v = (v << ushift) + (v >> dshift); comp->data[i] = (unsigned char)v; if (v > max) { max = v; } continue; } if (comp->prec == 8) { if (!comp->sgnd) { v = readuchar(f); } else { v = (char) readuchar(f); } } else if (comp->prec <= 16) { if (!comp->sgnd) { v = readushort(f, bigendian); } else { v = (short) readushort(f, bigendian); } } else { if (!comp->sgnd) { v = readuint(f, bigendian); } else { v = (int) readuint(f, bigendian); } } if (v > max) { max = v; } comp->data[i] = v; } fclose(f); comp->bpp = int_floorlog2(max) + 1; return image; } int imagetopgx(opj_image_t * image, const char *outfile) { int w, h; int i, j, compno; FILE *fdest = NULL; for (compno = 0; compno < image->numcomps; compno++) { opj_image_comp_t *comp = &image->comps[compno]; char bname[256]; /* buffer for name */ char *name = bname; /* pointer */ int nbytes = 0; size_t res; const size_t olen = strlen(outfile); const size_t dotpos = olen - 4; const size_t total = dotpos + 1 + 1 + 4; /* '-' + '[1-3]' + '.pgx' */ if (outfile[dotpos] != '.') { /* `pgx` was recognized but there is no dot at expected position */ fprintf(stderr, "ERROR -> Impossible happen."); return 1; } if (total > 256) { name = (char*)malloc(total + 1); } strncpy(name, outfile, dotpos); /*if (image->numcomps > 1) {*/ sprintf(name + dotpos, "_%d.pgx", compno); /*} else { strcpy(name+dotpos, ".pgx"); }*/ fdest = fopen(name, "wb"); if (!fdest) { fprintf(stderr, "ERROR -> failed to open %s for writing\n", name); return 1; } /* don't need name anymore */ if (total > 256) { free(name); } w = image->comps[compno].w; h = image->comps[compno].h; 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) { nbytes = 2; } else { nbytes = 4; } 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)); res = fwrite(&byte, 1, 1, fdest); if (res < 1) { fprintf(stderr, "failed to write 1 byte for %s\n", name); fclose(fdest); return 1; } } } fclose(fdest); } return 0; } /* -->> -->> -->> -->> PNM IMAGE FORMAT <<-- <<-- <<-- <<-- */ struct pnm_header { int width, height, maxval, depth, format; char rgb, rgba, gray, graya, bw; char ok; }; static char *skip_white(char *s) { while (*s) { if (*s == '\n' || *s == '\r') { return NULL; } if (isspace(*s)) { ++s; continue; } return s; } return NULL; } static char *skip_int(char *start, int *out_n) { char *s; char c; *out_n = 0; s = start; s = skip_white(start); if (s == NULL) { return NULL; } start = s; while (*s) { if (!isdigit(*s)) { break; } ++s; } c = *s; *s = 0; *out_n = atoi(start); *s = c; return s; } static char *skip_idf(char *start, char out_idf[256]) { char *s; char c; s = skip_white(start); if (s == NULL) { return NULL; } start = s; while (*s) { if (isalpha(*s) || *s == '_') { ++s; continue; } break; } c = *s; *s = 0; strncpy(out_idf, start, 255); *s = c; return s; } static void read_pnm_header(FILE *reader, struct pnm_header *ph) { char *s; int format, have_wh, end, ttype; char idf[256], type[256]; char line[256]; if (fgets(line, 250, reader) == NULL) { fprintf(stderr, "\nWARNING: fgets return a NULL value"); return; } if (line[0] != 'P') { fprintf(stderr, "read_pnm_header:PNM:magic P missing\n"); return; } format = atoi(line + 1); if (format < 1 || format > 7) { fprintf(stderr, "read_pnm_header:magic format %d invalid\n", format); return; } ph->format = format; ttype = end = have_wh = 0; while (fgets(line, 250, reader)) { if (*line == '#') { continue; } s = line; if (format == 7) { s = skip_idf(s, idf); if (s == NULL || *s == 0) { return; } if (strcmp(idf, "ENDHDR") == 0) { end = 1; break; } if (strcmp(idf, "WIDTH") == 0) { s = skip_int(s, &ph->width); if (s == NULL || *s == 0) { return; } continue; } if (strcmp(idf, "HEIGHT") == 0) { s = skip_int(s, &ph->height); if (s == NULL || *s == 0) { return; } continue; } if (strcmp(idf, "DEPTH") == 0) { s = skip_int(s, &ph->depth); if (s == NULL || *s == 0) { return; } continue; } if (strcmp(idf, "MAXVAL") == 0) { s = skip_int(s, &ph->maxval); if (s == NULL || *s == 0) { return; } continue; } if (strcmp(idf, "TUPLTYPE") == 0) { s = skip_idf(s, type); if (s == NULL || *s == 0) { return; } if (strcmp(type, "BLACKANDWHITE") == 0) { ph->bw = 1; ttype = 1; continue; } if (strcmp(type, "GRAYSCALE") == 0) { ph->gray = 1; ttype = 1; continue; } if (strcmp(type, "GRAYSCALE_ALPHA") == 0) { ph->graya = 1; ttype = 1; continue; } if (strcmp(type, "RGB") == 0) { ph->rgb = 1; ttype = 1; continue; } if (strcmp(type, "RGB_ALPHA") == 0) { ph->rgba = 1; ttype = 1; continue; } fprintf(stderr, "read_pnm_header:unknown P7 TUPLTYPE %s\n", type); return; } fprintf(stderr, "read_pnm_header:unknown P7 idf %s\n", idf); return; } /* if(format == 7) */ if (!have_wh) { s = skip_int(s, &ph->width); s = skip_int(s, &ph->height); have_wh = 1; if (format == 1 || format == 4) { break; } continue; } if (format == 2 || format == 3 || format == 5 || format == 6) { /* P2, P3, P5, P6: */ s = skip_int(s, &ph->maxval); if (ph->maxval > 65535) { return; } } break; }/* while(fgets( ) */ if (format == 2 || format == 3 || format > 4) { if (ph->maxval < 1 || ph->maxval > 65535) { return; } } if (ph->width < 1 || ph->height < 1) { return; } if (format == 7) { if (!end) { fprintf(stderr, "read_pnm_header:P7 without ENDHDR\n"); return; } if (ph->depth < 1 || ph->depth > 4) { return; } if (ph->width && ph->height && ph->depth & ph->maxval && ttype) { ph->ok = 1; } } else { if (format != 1 && format != 4) { if (ph->width && ph->height && ph->maxval) { ph->ok = 1; } } else { if (ph->width && ph->height) { ph->ok = 1; } ph->maxval = 255; } } } static int has_prec(int val) { if (val < 2) { return 1; } if (val < 4) { return 2; } if (val < 8) { return 3; } if (val < 16) { return 4; } if (val < 32) { return 5; } if (val < 64) { return 6; } if (val < 128) { return 7; } if (val < 256) { return 8; } if (val < 512) { return 9; } if (val < 1024) { return 10; } if (val < 2048) { return 11; } if (val < 4096) { return 12; } if (val < 8192) { return 13; } if (val < 16384) { return 14; } if (val < 32768) { return 15; } return 16; } opj_image_t* pnmtoimage(const char *filename, opj_cparameters_t *parameters) { int subsampling_dx = parameters->subsampling_dx; int subsampling_dy = parameters->subsampling_dy; FILE *fp = NULL; int i, compno, numcomps, w, h, prec, format; OPJ_COLOR_SPACE color_space; opj_image_cmptparm_t cmptparm[4]; /* RGBA: max. 4 components */ opj_image_t * image = NULL; struct pnm_header header_info; if ((fp = fopen(filename, "rb")) == NULL) { fprintf(stderr, "pnmtoimage:Failed to open %s for reading!\n", filename); return NULL; } memset(&header_info, 0, sizeof(struct pnm_header)); read_pnm_header(fp, &header_info); if (!header_info.ok) { fclose(fp); return NULL; } format = header_info.format; switch (format) { case 1: /* ascii bitmap */ case 4: /* raw bitmap */ numcomps = 1; break; case 2: /* ascii greymap */ case 5: /* raw greymap */ numcomps = 1; break; case 3: /* ascii pixmap */ case 6: /* raw pixmap */ numcomps = 3; break; case 7: /* arbitrary map */ numcomps = header_info.depth; break; default: fclose(fp); return NULL; } if (numcomps < 3) { color_space = CLRSPC_GRAY; /* GRAY, GRAYA */ } else { color_space = CLRSPC_SRGB; /* RGB, RGBA */ } prec = has_prec(header_info.maxval); if (prec < 8) { prec = 8; } w = header_info.width; h = header_info.height; subsampling_dx = parameters->subsampling_dx; subsampling_dy = parameters->subsampling_dy; memset(&cmptparm[0], 0, numcomps * sizeof(opj_image_cmptparm_t)); for (i = 0; i < numcomps; i++) { cmptparm[i].prec = prec; cmptparm[i].bpp = prec; cmptparm[i].sgnd = 0; cmptparm[i].dx = subsampling_dx; cmptparm[i].dy = subsampling_dy; cmptparm[i].w = w; cmptparm[i].h = h; } image = opj_image_create(numcomps, &cmptparm[0], color_space); if (!image) { fclose(fp); 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 ((format == 2) || (format == 3)) { /* ascii pixmap */ unsigned int index; for (i = 0; i < w * h; i++) { for (compno = 0; compno < numcomps; compno++) { index = 0; if (fscanf(fp, "%u", &index) != 1) { fprintf(stderr, "\nWARNING: fscanf return a number of element different from the expected.\n"); } image->comps[compno].data[i] = (index * 255) / header_info.maxval; } } } else if ((format == 5) || (format == 6) || ((format == 7) && (header_info.gray || header_info.graya || header_info.rgb || header_info.rgba))) { /* binary pixmap */ unsigned char c0, c1, one; one = (prec < 9); for (i = 0; i < w * h; i++) { for (compno = 0; compno < numcomps; compno++) { if (!fread(&c0, 1, 1, fp)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); } if (one) { image->comps[compno].data[i] = c0; } else { if (!fread(&c1, 1, 1, fp)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); } /* netpbm: */ image->comps[compno].data[i] = ((c0 << 8) | c1); } } } } else if (format == 1) { /* ascii bitmap */ for (i = 0; i < w * h; i++) { unsigned int index; if (fscanf(fp, "%u", &index) != 1) { fprintf(stderr, "\nWARNING: fscanf return a number of element different from the expected.\n"); } image->comps[0].data[i] = (index ? 0 : 255); } } else if (format == 4) { int x, y, bit; unsigned char uc; i = 0; for (y = 0; y < h; ++y) { bit = -1; uc = 0; for (x = 0; x < w; ++x) { if (bit == -1) { bit = 7; uc = (unsigned char)getc(fp); } image->comps[0].data[i] = (((uc >> bit) & 1) ? 0 : 255); --bit; ++i; } } } else if ((format == 7 && header_info.bw)) { /*MONO*/ unsigned char uc; for (i = 0; i < w * h; ++i) { if (!fread(&uc, 1, 1, fp)) { fprintf(stderr, "\nError: fread return a number of element different from the expected.\n"); } image->comps[0].data[i] = (uc & 1) ? 0 : 255; } } fclose(fp); return image; }/* pnmtoimage() */ int imagetopnm(opj_image_t * image, const char *outfile) { int *red, *green, *blue, *alpha; int wr, hr, max; int i, compno, ncomp; int adjustR, adjustG, adjustB, adjustA; int fails, two, want_gray, has_alpha, triple; int prec, v; FILE *fdest = NULL; const char *tmp = outfile; char *destname; alpha = NULL; if ((prec = image->comps[0].prec) > 16) { fprintf(stderr, "%s:%d:imagetopnm\n\tprecision %d is larger than 16" "\n\t: refused.\n", __FILE__, __LINE__, prec); return 1; } two = has_alpha = 0; fails = 1; ncomp = image->numcomps; while (*tmp) { ++tmp; } tmp -= 2; want_gray = (*tmp == 'g' || *tmp == 'G'); ncomp = image->numcomps; if (want_gray) { ncomp = 1; } if (ncomp == 2 /* GRAYA */ || (ncomp > 2 /* RGB, RGBA */ && 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 )) { fdest = fopen(outfile, "wb"); if (!fdest) { fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile); return fails; } two = (prec > 8); triple = (ncomp > 2); wr = image->comps[0].w; hr = image->comps[0].h; max = (1 << prec) - 1; has_alpha = (ncomp == 4 || ncomp == 2); red = image->comps[0].data; if (triple) { green = image->comps[1].data; blue = image->comps[2].data; } else { green = blue = NULL; } if (has_alpha) { const char *tt = (triple ? "RGB_ALPHA" : "GRAYSCALE_ALPHA"); fprintf(fdest, "P7\n# OpenJPEG-%s\nWIDTH %d\nHEIGHT %d\nDEPTH %d\n" "MAXVAL %d\nTUPLTYPE %s\nENDHDR\n", opj_version(), wr, hr, ncomp, max, tt); alpha = image->comps[ncomp - 1].data; adjustA = (image->comps[ncomp - 1].sgnd ? 1 << (image->comps[ncomp - 1].prec - 1) : 0); } else { fprintf(fdest, "P6\n# OpenJPEG-%s\n%d %d\n%d\n", opj_version(), wr, hr, max); adjustA = 0; } adjustR = (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0); if (triple) { adjustG = (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0); adjustB = (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0); } else { adjustG = adjustB = 0; } for (i = 0; i < wr * hr; ++i) { if (two) { v = *red + adjustR; ++red; /* netpbm: */ fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v); if (triple) { v = *green + adjustG; ++green; /* netpbm: */ fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v); v = *blue + adjustB; ++blue; /* netpbm: */ fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v); }/* if(triple) */ if (has_alpha) { v = *alpha + adjustA; ++alpha; /* netpbm: */ fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v); } continue; } /* if(two) */ /* prec <= 8: */ fprintf(fdest, "%c", (unsigned char)*red++); if (triple) { fprintf(fdest, "%c%c", (unsigned char)*green++, (unsigned char)*blue++); } if (has_alpha) { fprintf(fdest, "%c", (unsigned char)*alpha++); } } /* for(i */ fclose(fdest); return 0; } /* YUV or MONO: */ if (image->numcomps > ncomp) { fprintf(stderr, "WARNING -> [PGM file] Only the first component\n"); fprintf(stderr, " is written to the file\n"); } destname = (char*)malloc(strlen(outfile) + 8); for (compno = 0; compno < ncomp; compno++) { if (ncomp > 1) { sprintf(destname, "%d.%s", compno, outfile); } else { sprintf(destname, "%s", outfile); } fdest = fopen(destname, "wb"); if (!fdest) { fprintf(stderr, "ERROR -> failed to open %s for writing\n", destname); free(destname); return 1; } wr = image->comps[compno].w; hr = image->comps[compno].h; prec = image->comps[compno].prec; max = (1 << prec) - 1; fprintf(fdest, "P5\n#OpenJPEG-%s\n%d %d\n%d\n", opj_version(), wr, hr, max); red = image->comps[compno].data; adjustR = (image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0); if (prec > 8) { for (i = 0; i < wr * hr; i++) { v = *red + adjustR; ++red; /* netpbm: */ fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v); if (has_alpha) { v = *alpha++; /* netpbm: */ fprintf(fdest, "%c%c", (unsigned char)(v >> 8), (unsigned char)v); } }/* for(i */ } else { /* prec <= 8 */ for (i = 0; i < wr * hr; ++i) { fprintf(fdest, "%c", (unsigned char)(*red + adjustR)); ++red; } } fclose(fdest); } /* for (compno */ free(destname); return 0; }/* imagetopnm() */ #ifdef OPJ_HAVE_LIBTIFF /* -->> -->> -->> -->> TIFF IMAGE FORMAT <<-- <<-- <<-- <<-- */ int imagetotif(opj_image_t * image, const char *outfile) { int width, height, imgsize; int bps, index, adjust, sgnd; int ushift, dshift, has_alpha, force16; TIFF *tif; tdata_t buf; tstrip_t strip; tsize_t strip_size; ushift = dshift = force16 = has_alpha = 0; bps = image->comps[0].prec; if (bps > 8 && bps < 16) { ushift = 16 - bps; dshift = bps - ushift; bps = 16; force16 = 1; } if (bps != 8 && bps != 16) { fprintf(stderr, "imagetotif: Bits=%d, Only 8 and 16 bits implemented\n", bps); fprintf(stderr, "\tAborting\n"); return 1; } tif = TIFFOpen(outfile, "wb"); if (!tif) { fprintf(stderr, "imagetotif:failed to open %s for writing\n", outfile); return 1; } sgnd = image->comps[0].sgnd; adjust = sgnd ? 1 << (image->comps[0].prec - 1) : 0; 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) { has_alpha = (image->numcomps == 4); width = image->comps[0].w; height = image->comps[0].h; imgsize = width * height ; TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width); TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height); TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 3 + has_alpha); 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); strip_size = TIFFStripSize(tif); buf = _TIFFmalloc(strip_size); index = 0; for (strip = 0; strip < TIFFNumberOfStrips(tif); strip++) { unsigned char *dat8; tsize_t i, ssize, last_i = 0; int step, restx; ssize = TIFFStripSize(tif); dat8 = (unsigned char*)buf; if (bps == 8) { step = 3 + has_alpha; restx = step - 1; for (i = 0; i < ssize - restx; i += step) { int r, g, b, a = 0; if (index < imgsize) { r = image->comps[0].data[index]; g = image->comps[1].data[index]; b = image->comps[2].data[index]; if (has_alpha) { a = image->comps[3].data[index]; } if (sgnd) { r += adjust; g += adjust; b += adjust; if (has_alpha) { a += adjust; } } dat8[i + 0] = r ; dat8[i + 1] = g ; dat8[i + 2] = b ; if (has_alpha) { dat8[i + 3] = a; } index++; last_i = i + step; } else { break; } }/*for(i = 0;)*/ if (last_i < ssize) { for (i = last_i; i < ssize; i += step) { int r, g, b, a = 0; if (index < imgsize) { r = image->comps[0].data[index]; g = image->comps[1].data[index]; b = image->comps[2].data[index]; if (has_alpha) { a = image->comps[3].data[index]; } if (sgnd) { r += adjust; g += adjust; b += adjust; if (has_alpha) { a += adjust; } } dat8[i + 0] = r ; if (i + 1 < ssize) { dat8[i + 1] = g ; } else { break; } if (i + 2 < ssize) { dat8[i + 2] = b ; } else { break; } if (has_alpha) { if (i + 3 < ssize) { dat8[i + 3] = a ; } else { break; } } index++; } else { break; } }/*for(i)*/ }/*if(last_i < ssize)*/ } /*if(bps == 8)*/ else if (bps == 16) { step = 6 + has_alpha + has_alpha; restx = step - 1; for (i = 0; i < ssize - restx ; i += step) { int r, g, b, a = 0; if (index < imgsize) { r = image->comps[0].data[index]; g = image->comps[1].data[index]; b = image->comps[2].data[index]; if (has_alpha) { a = image->comps[3].data[index]; } if (sgnd) { r += adjust; g += adjust; b += adjust; if (has_alpha) { a += adjust; } } if (force16) { r = (r << ushift) + (r >> dshift); g = (g << ushift) + (g >> dshift); b = (b << ushift) + (b >> dshift); if (has_alpha) { a = (a << ushift) + (a >> dshift); } } 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); if (has_alpha) { dat8[i + 6] = a; dat8[i + 7] = (a >> 8); } index++; last_i = i + step; } else { break; } }/*for(i = 0;)*/ if (last_i < ssize) { for (i = last_i ; i < ssize ; i += step) { int r, g, b, a = 0; if (index < imgsize) { r = image->comps[0].data[index]; g = image->comps[1].data[index]; b = image->comps[2].data[index]; if (has_alpha) { a = image->comps[3].data[index]; } if (sgnd) { r += adjust; g += adjust; b += adjust; if (has_alpha) { a += adjust; } } if (force16) { r = (r << ushift) + (r >> dshift); g = (g << ushift) + (g >> dshift); b = (b << ushift) + (b >> dshift); if (has_alpha) { a = (a << ushift) + (a >> dshift); } } 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; } if (has_alpha) { if (i + 6 < ssize) { dat8[i + 6] = a; } else { break; } if (i + 7 < ssize) { dat8[i + 7] = (a >> 8); } else { break; } } index++; } else { break; } }/*for(i)*/ }/*if(last_i < ssize)*/ }/*if(bps == 16)*/ (void)TIFFWriteEncodedStrip(tif, strip, (void*)buf, strip_size); }/*for(strip = 0; )*/ _TIFFfree((void*)buf); TIFFClose(tif); return 0; }/*RGB(A)*/ if (image->numcomps == 1 /* GRAY */ || (image->numcomps == 2 /* GRAY_ALPHA */ && image->comps[0].dx == image->comps[1].dx && image->comps[0].dy == image->comps[1].dy && image->comps[0].prec == image->comps[1].prec)) { int step; has_alpha = (image->numcomps == 2); width = image->comps[0].w; height = image->comps[0].h; imgsize = width * height; /* Set tags */ TIFFSetField(tif, TIFFTAG_IMAGEWIDTH, width); TIFFSetField(tif, TIFFTAG_IMAGELENGTH, height); TIFFSetField(tif, TIFFTAG_SAMPLESPERPIXEL, 1 + has_alpha); 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; tsize_t i, ssize = TIFFStripSize(tif); dat8 = (unsigned char*)buf; if (bps == 8) { step = 1 + has_alpha; for (i = 0; i < ssize; i += step) { if (index < imgsize) { int r, a = 0; r = image->comps[0].data[index]; if (has_alpha) { a = image->comps[1].data[index]; } if (sgnd) { r += adjust; if (has_alpha) { a += adjust; } } dat8[i + 0] = r; if (has_alpha) { dat8[i + 1] = a; } index++; } else { break; } }/*for(i )*/ }/*if(bps == 8*/ else if (bps == 16) { step = 2 + has_alpha + has_alpha; for (i = 0; i < ssize; i += step) { if (index < imgsize) { int r, a = 0; r = image->comps[0].data[index]; if (has_alpha) { a = image->comps[1].data[index]; } if (sgnd) { r += adjust; if (has_alpha) { a += adjust; } } if (force16) { r = (r << ushift) + (r >> dshift); if (has_alpha) { a = (a << ushift) + (a >> dshift); } } dat8[i + 0] = r; /*LSB*/ dat8[i + 1] = r >> 8; /*MSB*/ if (has_alpha) { dat8[i + 2] = a; dat8[i + 3] = a >> 8; } index++; }/*if(index < imgsize)*/ else { break; } }/*for(i )*/ } (void)TIFFWriteEncodedStrip(tif, strip, (void*)buf, strip_size); }/*for(strip*/ _TIFFfree(buf); TIFFClose(tif); return 0; } TIFFClose(tif); fprintf(stderr, "imagetotif: Bad color format.\n" "\tOnly RGB(A) and GRAY(A) has been implemented\n"); fprintf(stderr, "\tFOUND: numcomps(%d)\n\tAborting\n", image->numcomps); return 1; }/* imagetotif() */ /* * libtiff/tif_getimage.c : 1,2,4,8,16 bitspersample accepted * CINEMA : 12 bit precision */ 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; 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[4]; /* RGBA */ opj_image_t *image = NULL; int imgsize = 0; int has_alpha = 0; unsigned short tiBps, tiPhoto, tiSf, tiSpp, tiPC; unsigned int tiWidth, tiHeight; tif = TIFFOpen(filename, "r"); if (!tif) { fprintf(stderr, "tiftoimage:Failed to open %s for reading\n", filename); return 0; } tiBps = tiPhoto = tiSf = tiSpp = tiPC = 0; tiWidth = tiHeight = 0; TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &tiWidth); TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &tiHeight); TIFFGetField(tif, TIFFTAG_BITSPERSAMPLE, &tiBps); TIFFGetField(tif, TIFFTAG_SAMPLEFORMAT, &tiSf); TIFFGetField(tif, TIFFTAG_SAMPLESPERPIXEL, &tiSpp); TIFFGetField(tif, TIFFTAG_PHOTOMETRIC, &tiPhoto); TIFFGetField(tif, TIFFTAG_PLANARCONFIG, &tiPC); w = tiWidth; h = tiHeight; { unsigned short b = tiBps, p = tiPhoto; if (tiBps != 8 && tiBps != 16 && tiBps != 12) { b = 0; } if (tiPhoto != 1 && tiPhoto != 2) { p = 0; } if (!b || !p) { if (!b) fprintf(stderr, "imagetotif: Bits=%d, Only 8 and 16 bits" " implemented\n", tiBps); else if (!p) fprintf(stderr, "tiftoimage: Bad color format %d.\n\tOnly RGB(A)" " and GRAY(A) has been implemented\n", (int) tiPhoto); fprintf(stderr, "\tAborting\n"); TIFFClose(tif); return NULL; } } {/* From: tiff-4.0.x/libtiff/tif_getimage.c : */ uint16* sampleinfo; uint16 extrasamples; TIFFGetFieldDefaulted(tif, TIFFTAG_EXTRASAMPLES, &extrasamples, &sampleinfo); if (extrasamples >= 1) { switch (sampleinfo[0]) { case EXTRASAMPLE_UNSPECIFIED: /* Workaround for some images without correct info about alpha channel */ if (tiSpp > 3) { has_alpha = 1; } break; case EXTRASAMPLE_ASSOCALPHA: /* data pre-multiplied */ case EXTRASAMPLE_UNASSALPHA: /* data not pre-multiplied */ has_alpha = 1; break; } } else /* extrasamples == 0 */ if (tiSpp == 4 || tiSpp == 2) { has_alpha = 1; } } /* initialize image components */ memset(&cmptparm[0], 0, 4 * sizeof(opj_image_cmptparm_t)); if (tiPhoto == PHOTOMETRIC_RGB) { /* RGB(A) */ numcomps = 3 + has_alpha; color_space = CLRSPC_SRGB; for (j = 0; j < numcomps; j++) { if (parameters->cp_cinema) { cmptparm[j].prec = 12; cmptparm[j].bpp = 12; } else { cmptparm[j].prec = tiBps; cmptparm[j].bpp = tiBps; } cmptparm[j].dx = subsampling_dx; cmptparm[j].dy = subsampling_dy; cmptparm[j].w = w; cmptparm[j].h = h; } 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 = 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 step; tsize_t i, ssize; ssize = TIFFReadEncodedStrip(tif, strip, buf, strip_size); dat8 = (unsigned char*)buf; if (tiBps == 16) { step = 6 + has_alpha + has_alpha; for (i = 0; i < ssize; i += step) { 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 (has_alpha) { image->comps[3].data[index] = (dat8[i + 7] << 8) | dat8[i + 6]; } if (parameters->cp_cinema) { /* Rounding 16 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 ; if (has_alpha) image->comps[3].data[index] = (image->comps[3].data[index] + 0x08) >> 4 ; } index++; } else { break; } }/*for(i = 0)*/ }/*if(tiBps == 16)*/ else if (tiBps == 8) { step = 3 + has_alpha; for (i = 0; i < ssize; i += step) { 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 (has_alpha) { image->comps[3].data[index] = dat8[i + 3]; } if (parameters->cp_cinema) { /* Rounding 8 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 ; if (has_alpha) { image->comps[3].data[index] = image->comps[3].data[index] << 4 ; } } index++; }/*if(index*/ else { break; } }/*for(i )*/ }/*if( tiBps == 8)*/ else if (tiBps == 12) { /* CINEMA file */ step = 9; for (i = 0; i < ssize; i += step) { 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; } }/*for(i )*/ } }/*for(strip = 0; )*/ _TIFFfree(buf); TIFFClose(tif); return image; }/*RGB(A)*/ if (tiPhoto == PHOTOMETRIC_MINISBLACK) { /* GRAY(A) */ numcomps = 1 + has_alpha; color_space = CLRSPC_GRAY; for (j = 0; j < numcomps; ++j) { cmptparm[j].prec = tiBps; cmptparm[j].bpp = tiBps; cmptparm[j].dx = subsampling_dx; cmptparm[j].dy = subsampling_dy; cmptparm[j].w = w; cmptparm[j].h = h; } 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 = 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; tsize_t i, ssize; int step; ssize = TIFFReadEncodedStrip(tif, strip, buf, strip_size); dat8 = (unsigned char*)buf; if (tiBps == 16) { step = 2 + has_alpha + has_alpha; for (i = 0; i < ssize; i += step) { if (index < imgsize) { image->comps[0].data[index] = (dat8[i + 1] << 8) | dat8[i + 0]; if (has_alpha) { image->comps[1].data[index] = (dat8[i + 3] << 8) | dat8[i + 2]; } index++; } else { break; } }/*for(i )*/ } else if (tiBps == 8) { step = 1 + has_alpha; for (i = 0; i < ssize; i += step) { if (index < imgsize) { image->comps[0].data[index] = dat8[i + 0]; if (has_alpha) { image->comps[1].data[index] = dat8[i + 1]; } index++; } else { break; } }/*for(i )*/ } }/*for(strip = 0;*/ _TIFFfree(buf); TIFFClose(tif); }/*GRAY(A)*/ return image; }/* tiftoimage() */ #endif /* OPJ_HAVE_LIBTIFF */ /* -->> -->> -->> -->> 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"); fclose(f); 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"); fclose(f); return NULL; } value = temp << 8; if (!fread(&temp, 1, 1, f)) { fprintf(stderr, "Error reading raw file. End of file probably reached.\n"); fclose(f); 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"); fclose(f); 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; size_t res; 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); res = fwrite(&curr, sizeof(signed char), 1, rawFile); if (res < 1) { fprintf(stderr, "failed to write 1 byte for %s\n", outfile); return 1; } 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); res = fwrite(&curr, sizeof(unsigned char), 1, rawFile); if (res < 1) { fprintf(stderr, "failed to write 1 byte for %s\n", outfile); return 1; } 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); res = fwrite(&temp, 1, 1, rawFile); if (res < 1) { fprintf(stderr, "failed to write 1 byte for %s\n", outfile); return 1; } temp = (unsigned char) curr; res = fwrite(&temp, 1, 1, rawFile); if (res < 1) { fprintf(stderr, "failed to write 1 byte for %s\n", outfile); return 1; } 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); res = fwrite(&temp, 1, 1, rawFile); if (res < 1) { fprintf(stderr, "failed to write 1 byte for %s\n", outfile); return 1; } temp = (unsigned char) curr; res = fwrite(&temp, 1, 1, rawFile); if (res < 1) { fprintf(stderr, "failed to write 1 byte for %s\n", outfile); return 1; } 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; } #ifdef OPJ_HAVE_LIBPNG #define PNG_MAGIC "\x89PNG\x0d\x0a\x1a\x0a" #define MAGIC_SIZE 8 /* PNG allows bits per sample: 1, 2, 4, 8, 16 */ opj_image_t *pngtoimage(const char *read_idf, opj_cparameters_t * params) { png_structp png; png_infop info; double gamma, display_exponent; int bit_depth, interlace_type, compression_type, filter_type; int unit; png_uint_32 resx, resy; unsigned int i, j; png_uint_32 width, height; int color_type, has_alpha, is16; unsigned char *s; FILE *reader; unsigned char **rows; /* 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; unsigned char sigbuf[8]; if ((reader = fopen(read_idf, "rb")) == NULL) { fprintf(stderr, "pngtoimage: can not open %s\n", read_idf); return NULL; } image = NULL; png = NULL; rows = NULL; if (fread(sigbuf, 1, MAGIC_SIZE, reader) != MAGIC_SIZE || memcmp(sigbuf, PNG_MAGIC, MAGIC_SIZE) != 0) { fprintf(stderr, "pngtoimage: %s is no valid PNG file\n", read_idf); goto fin; } /* 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_set_sig_bytes(png, MAGIC_SIZE); png_read_info(png, info); if (png_get_IHDR(png, info, &width, &height, &bit_depth, &color_type, &interlace_type, &compression_type, &filter_type) == 0) { goto fin; } /* png_set_expand(): * expand paletted images to RGB, expand grayscale images of * less than 8-bit depth to 8-bit depth, and expand tRNS chunks * to alpha channels. */ 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); } is16 = (bit_depth == 16); /* 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); 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); nr_comp = 3 + has_alpha; bit_depth = png_get_bit_depth(png, info); rows = (unsigned char**)calloc(height + 1, sizeof(unsigned char*)); for (i = 0; i < height; ++i) { rows[i] = (unsigned char*)malloc(png_get_rowbytes(png, info)); } png_read_image(png, rows); 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 = bit_depth; /* bits_per_pixel: 8 or 16 */ cmptparm[i].bpp = bit_depth; 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 = image->x0 + (width - 1) * sub_dx + 1 + image->x0; image->y1 = image->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; for (i = 0; i < height; ++i) { s = rows[i]; for (j = 0; j < width; ++j) { if (is16) { *r++ = s[0] << 8 | s[1]; s += 2; *g++ = s[0] << 8 | s[1]; s += 2; *b++ = s[0] << 8 | s[1]; s += 2; if (has_alpha) { *a++ = s[0] << 8 | s[1]; s += 2; } continue; } *r++ = *s++; *g++ = *s++; *b++ = *s++; if (has_alpha) { *a++ = *s++; } } } fin: if (rows) { for (i = 0; i < height; ++i) { free(rows[i]); } free(rows); } if (png) { png_destroy_read_struct(&png, &info, NULL); } fclose(reader); return image; }/* pngtoimage() */ int imagetopng(opj_image_t * image, const char *write_idf) { FILE *writer; png_structp png; png_infop info; int *red, *green, *blue, *alpha; unsigned char *row_buf, *d; int has_alpha, width, height, nr_comp, color_type; int adjustR, adjustG, adjustB, adjustA, x, y, fails; int prec, ushift, dshift, is16, force16, force8; unsigned short mask = 0xffff; png_color_8 sig_bit; is16 = force16 = force8 = ushift = dshift = 0; fails = 1; prec = image->comps[0].prec; nr_comp = image->numcomps; if (prec > 8 && prec < 16) { ushift = 16 - prec; dshift = prec - ushift; prec = 16; force16 = 1; } else if (prec < 8 && nr_comp > 1) { /* GRAY_ALPHA, RGB, RGB_ALPHA */ ushift = 8 - prec; dshift = 8 - ushift; prec = 8; force8 = 1; } if (prec != 1 && prec != 2 && prec != 4 && prec != 8 && prec != 16) { fprintf(stderr, "imagetopng: can not create %s" "\n\twrong bit_depth %d\n", write_idf, prec); return fails; } writer = fopen(write_idf, "wb"); if (writer == NULL) { return fails; } info = NULL; has_alpha = 0; /* 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 = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); /*png_voidp user_error_ptr, user_error_fn, user_warning_fn); */ if (png == NULL) { goto fin; } /* Allocate/initialize the image information data. REQUIRED */ info = png_create_info_struct(png); if (info == 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))) { goto fin; } /* I/O initialization functions is REQUIRED */ png_init_io(png, 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 * * ERRORS: * * color_type == PNG_COLOR_TYPE_PALETTE && bit_depth > 8 * color_type == PNG_COLOR_TYPE_RGB && bit_depth < 8 * color_type == PNG_COLOR_TYPE_GRAY_ALPHA && bit_depth < 8 * color_type == PNG_COLOR_TYPE_RGB_ALPHA) && bit_depth < 8 * */ png_set_compression_level(png, Z_BEST_COMPRESSION); if (prec == 16) { mask = 0xffff; } else if (prec == 8) { mask = 0x00ff; } else if (prec == 4) { mask = 0x000f; } else if (prec == 2) { mask = 0x0003; } else if (prec == 1) { mask = 0x0001; } if (nr_comp >= 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) { int v; has_alpha = (nr_comp > 3); is16 = (prec == 16); width = image->comps[0].w; height = image->comps[0].h; red = image->comps[0].data; green = image->comps[1].data; blue = image->comps[2].data; sig_bit.red = sig_bit.green = sig_bit.blue = prec; if (has_alpha) { sig_bit.alpha = prec; alpha = image->comps[3].data; color_type = PNG_COLOR_TYPE_RGB_ALPHA; adjustA = (image->comps[3].sgnd ? 1 << (image->comps[3].prec - 1) : 0); } else { sig_bit.alpha = 0; alpha = NULL; color_type = PNG_COLOR_TYPE_RGB; adjustA = 0; } png_set_sBIT(png, info, &sig_bit); png_set_IHDR(png, info, width, height, prec, color_type, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); /*=============================*/ png_write_info(png, info); /*=============================*/ if (prec < 8) { png_set_packing(png); } adjustR = (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0); adjustG = (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0); adjustB = (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0); row_buf = (unsigned char*)malloc(width * nr_comp * 2); for (y = 0; y < height; ++y) { d = row_buf; for (x = 0; x < width; ++x) { if (is16) { v = *red + adjustR; ++red; if (force16) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v >> 8); *d++ = (unsigned char)v; v = *green + adjustG; ++green; if (force16) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v >> 8); *d++ = (unsigned char)v; v = *blue + adjustB; ++blue; if (force16) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v >> 8); *d++ = (unsigned char)v; if (has_alpha) { v = *alpha + adjustA; ++alpha; if (force16) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v >> 8); *d++ = (unsigned char)v; } continue; }/* if(is16) */ v = *red + adjustR; ++red; if (force8) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v & mask); v = *green + adjustG; ++green; if (force8) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v & mask); v = *blue + adjustB; ++blue; if (force8) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v & mask); if (has_alpha) { v = *alpha + adjustA; ++alpha; if (force8) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v & mask); } } /* for(x) */ png_write_row(png, row_buf); } /* for(y) */ free(row_buf); }/* nr_comp >= 3 */ else if (nr_comp == 1 /* GRAY */ || (nr_comp == 2 /* GRAY_ALPHA */ && image->comps[0].dx == image->comps[1].dx && image->comps[0].dy == image->comps[1].dy && image->comps[0].prec == image->comps[1].prec)) { int v; red = image->comps[0].data; sig_bit.gray = prec; sig_bit.red = sig_bit.green = sig_bit.blue = sig_bit.alpha = 0; alpha = NULL; adjustA = 0; color_type = PNG_COLOR_TYPE_GRAY; if (nr_comp == 2) { has_alpha = 1; sig_bit.alpha = prec; alpha = image->comps[1].data; color_type = PNG_COLOR_TYPE_GRAY_ALPHA; adjustA = (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0); } width = image->comps[0].w; height = image->comps[0].h; png_set_IHDR(png, info, width, height, sig_bit.gray, color_type, PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); png_set_sBIT(png, info, &sig_bit); /*=============================*/ png_write_info(png, info); /*=============================*/ adjustR = (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0); if (prec < 8) { png_set_packing(png); } if (prec > 8) { row_buf = (unsigned char*) malloc(width * nr_comp * sizeof(unsigned short)); for (y = 0; y < height; ++y) { d = row_buf; for (x = 0; x < width; ++x) { v = *red + adjustR; ++red; if (force16) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v >> 8); *d++ = (unsigned char)v; if (has_alpha) { v = *alpha++; if (force16) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v >> 8); *d++ = (unsigned char)v; } }/* for(x) */ png_write_row(png, row_buf); } /* for(y) */ free(row_buf); } else { /* prec <= 8 */ row_buf = (unsigned char*)calloc(width, nr_comp * 2); for (y = 0; y < height; ++y) { d = row_buf; for (x = 0; x < width; ++x) { v = *red + adjustR; ++red; if (force8) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v & mask); if (has_alpha) { v = *alpha + adjustA; ++alpha; if (force8) { v = (v << ushift) + (v >> dshift); } *d++ = (unsigned char)(v & mask); } }/* for(x) */ png_write_row(png, row_buf); } /* for(y) */ free(row_buf); } } else { fprintf(stderr, "imagetopng: can not create %s\n", write_idf); goto fin; } png_write_end(png, info); fails = 0; fin: if (png) { png_destroy_write_struct(&png, &info); } fclose(writer); if (fails) { remove(write_idf); } return fails; }/* imagetopng() */ #endif /* OPJ_HAVE_LIBPNG */