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-rw-r--r--codec/convert.c1065
1 files changed, 1065 insertions, 0 deletions
diff --git a/codec/convert.c b/codec/convert.c
new file mode 100644
index 00000000..db1e6740
--- /dev/null
+++ b/codec/convert.c
@@ -0,0 +1,1065 @@
+/*
+ * Copyright (c) 2001-2003, David Janssens
+ * Copyright (c) 2002-2003, Yannick Verschueren
+ * Copyright (c) 2003-2005, Francois Devaux and Antonin Descampe
+ * Copyright (c) 2005, Hervé Drolon, FreeImage Team
+ * Copyright (c) 2002-2005, Communications and remote sensing Laboratory, Universite catholique de Louvain, Belgium
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "openjpeg.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;
+}
+
+/*
+ * Divide an integer by a power of 2 and round upwards.
+ *
+ * a divided by 2^b
+ */
+static int int_ceildivpow2(int a, int b) {
+ return (a + (1 << b) - 1) >> b;
+}
+
+/*
+ * Divide an integer and round upwards.
+ *
+ * a divided by b
+ */
+static int int_ceildiv(int a, int b) {
+ return (a + b - 1) / b;
+}
+
+/* -->> -->> -->> -->>
+
+ BMP IMAGE FORMAT
+
+ <<-- <<-- <<-- <<-- */
+
+/* WORD defines a two byte word */
+typedef unsigned short int WORD;
+
+/* DWORD defines a four byte word */
+typedef unsigned long 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; /* Heigth 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, not_end_file = 1;
+
+ unsigned int line = 0, col = 0;
+ unsigned char v, v2;
+ DWORD W, H;
+
+ IN = fopen(filename, "rb");
+ if (!IN) {
+ fprintf(stderr, "\033[0;33mFailed to open %s for reading !!\033[0;39m\n", filename);
+ return 0;
+ }
+
+ 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");
+ return 0;
+ } else {
+ /* 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;
+
+ 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));
+
+ fread(RGB, sizeof(unsigned char), (3 * W + PAD) * H, IN);
+
+ 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);
+
+ } else if (Info_h.biBitCount == 8 && Info_h.biCompression == 0) {
+ 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));
+
+ for (j = 0; j < Info_h.biClrUsed; j++) {
+ table_B[j] = getc(IN);
+ table_G[j] = getc(IN);
+ table_R[j] = getc(IN);
+ getc(IN);
+ if (table_R[j] != table_G[j] && table_R[j] != table_B[j] && table_G[j] != table_B[j])
+ 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);
+ 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));
+
+ fread(RGB, sizeof(unsigned char), W * H, IN);
+ 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);
+ } else if (Info_h.biBitCount == 8 && Info_h.biCompression == 1) {
+ 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));
+
+ for (j = 0; j < Info_h.biClrUsed; j++) {
+ table_B[j] = getc(IN);
+ table_G[j] = getc(IN);
+ table_R[j] = getc(IN);
+ getc(IN);
+ if (table_R[j] != table_G[j] && table_R[j] != table_B[j] && table_G[j] != table_B[j])
+ 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);
+ 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);
+
+ RGB = (unsigned char *) malloc(Info_h.biWidth * Info_h.biHeight * sizeof(unsigned char));
+
+ while (not_end_file) {
+ v = getc(IN);
+ if (v) {
+ v2 = getc(IN);
+ for (i = 0; i < (int) v; i++) {
+ RGB[line * Info_h.biWidth + col] = v2;
+ col++;
+ }
+ } else {
+ v = getc(IN);
+ switch (v) {
+ case 0:
+ col = 0;
+ line++;
+ break;
+ case 1:
+ line++;
+ not_end_file = 0;
+ break;
+ case 2:
+ fprintf(stderr,"No Delta supported\n");
+ opj_image_destroy(image);
+ fclose(IN);
+ return NULL;
+ default:
+ for (i = 0; i < v; i++) {
+ v2 = getc(IN);
+ RGB[line * Info_h.biWidth + col] = v2;
+ col++;
+ }
+ if (v % 2)
+ v2 = getc(IN);
+ break;
+ }
+ }
+ }
+ if (gray_scale) {
+ index = 0;
+ for (line = 0; line < Info_h.biHeight; line++) {
+ for (col = 0; col < Info_h.biWidth; col++) {
+ image->comps[0].data[index] = table_R[(int)RGB[(Info_h.biHeight - line - 1) * Info_h.biWidth + col]];
+ index++;
+ }
+ }
+ } else {
+ index = 0;
+ for (line = 0; line < Info_h.biHeight; line++) {
+ for (col = 0; col < Info_h.biWidth; col++) {
+ unsigned char pixel_index = (int)RGB[(Info_h.biHeight - line - 1) * Info_h.biWidth + col];
+ 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);
+ } 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, wr, h, hr;
+ int i, pad;
+ FILE *fdest = NULL;
+
+ 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 = 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); */
+ 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);
+ 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", (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", (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 ((i + 1) % wr == 0) {
+ for (pad = (3 * wr) % 4 ? 4 - (3 * wr) % 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 = 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); */
+ 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", (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) ((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", (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", (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);
+
+ 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 */
+ fprintf(fdest, "%c", 0);
+ }
+ }
+ fclose(fdest);
+ }
+
+ return 0;
+}
+
+/* -->> -->> -->> -->>
+
+PGX IMAGE FORMAT
+
+<<-- <<-- <<-- <<-- */
+
+
+unsigned char readuchar(FILE * f)
+{
+ unsigned char c1;
+ fread(&c1, 1, 1, f);
+ return c1;
+}
+
+unsigned short readushort(FILE * f, int bigendian)
+{
+ unsigned char c1, c2;
+ fread(&c1, 1, 1, f);
+ fread(&c2, 1, 1, f);
+ if (bigendian)
+ return (c1 << 8) + c2;
+ else
+ return (c2 << 8) + c1;
+}
+
+unsigned int readuint(FILE * f, int bigendian)
+{
+ unsigned char c1, c2, c3, c4;
+ fread(&c1, 1, 1, f);
+ fread(&c2, 1, 1, f);
+ fread(&c3, 1, 1, f);
+ fread(&c4, 1, 1, f);
+ 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;
+
+ 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);
+ fscanf(f, "PG%[ \t]%c%c%[ \t+-]%d%[ \t]%d%[ \t]%d",temp,&endian1,&endian2,signtmp,&prec,temp,&w,temp,&h);
+
+ 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;
+ }
+ 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 (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, wr, h, hr;
+ 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;
+ 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;
+ }
+ /* dont need name anymore */
+ 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);
+ if (comp->prec <= 8) {
+ nbytes = 1;
+ } else if (comp->prec <= 16) {
+ nbytes = 2;
+ } else {
+ nbytes = 4;
+ }
+ for (i = 0; i < wr * hr; i++) {
+ int v = image->comps[compno].data[i / wr * w + i % wr];
+ for (j = nbytes - 1; j >= 0; j--) {
+ char byte = (char) (v >> (j * 8));
+ fwrite(&byte, 1, 1, fdest);
+ }
+ }
+ fclose(fdest);
+ }
+
+ return 0;
+}
+
+/* -->> -->> -->> -->>
+
+PNM IMAGE FORMAT
+
+<<-- <<-- <<-- <<-- */
+
+opj_image_t* pnmtoimage(const char *filename, opj_cparameters_t *parameters) {
+ 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[3]; /* maximum of 3 components */
+ opj_image_t * image = NULL;
+ char value;
+
+ f = fopen(filename, "rb");
+ if (!f) {
+ fprintf(stderr, "\033[0;33mFailed to open %s for reading !!\033[0;39m\n", filename);
+ return 0;
+ }
+
+ if (fgetc(f) != 'P')
+ return 0;
+ value = fgetc(f);
+
+ switch(value) {
+ case '2': /* greyscale image type */
+ case '5':
+ numcomps = 1;
+ color_space = CLRSPC_GRAY;
+ break;
+
+ case '3': /* RGB image type */
+ case '6':
+ numcomps = 3;
+ color_space = CLRSPC_SRGB;
+ break;
+
+ default:
+ fclose(f);
+ return NULL;
+ }
+
+ fgetc(f);
+
+ /* skip comments */
+ while(fgetc(f) == '#') while(fgetc(f) != '\n');
+
+ fseek(f, -1, SEEK_CUR);
+ fscanf(f, "%d %d\n255", &w, &h);
+ fgetc(f); /* <cr><lf> */
+
+ /* 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(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;
+
+ /* set image data */
+
+ if ((value == '2') || (value == '3')) { /* ASCII */
+ for (i = 0; i < w * h; i++) {
+ for(compno = 0; compno < numcomps; compno++) {
+ unsigned int index = 0;
+ fscanf(f, "%u", &index);
+ /* compno : 0 = GREY, (0, 1, 2) = (R, G, B) */
+ image->comps[compno].data[i] = index;
+ }
+ }
+ } else if ((value == '5') || (value == '6')) { /* BINARY */
+ for (i = 0; i < w * h; i++) {
+ for(compno = 0; compno < numcomps; compno++) {
+ unsigned char index = 0;
+ fread(&index, 1, 1, f);
+ /* compno : 0 = GREY, (0, 1, 2) = (R, G, B) */
+ image->comps[compno].data[i] = index;
+ }
+ }
+ }
+
+ fclose(f);
+
+ return image;
+}
+
+int imagetopnm(opj_image_t * image, const char *outfile) {
+ int w, wr, wrr, h, hr, hrr, max;
+ int i, compno;
+ int adjust;
+ FILE *fdest = NULL;
+ char S2;
+ const char *tmp = outfile;
+
+ while (*tmp) {
+ tmp++;
+ }
+ tmp--;
+ tmp--;
+ S2 = *tmp;
+
+ 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
+ && S2 !='g' && S2 !='G') {
+
+ fdest = fopen(outfile, "wb");
+ if (!fdest) {
+ fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
+ 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); */
+ 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++) {
+ int r, g, b;
+ unsigned char rc,gc,bc;
+ r = image->comps[0].data[i / wrr * wr + i % wrr];
+ r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
+ rc = (unsigned char) ((r >> adjust)+((r >> (adjust-1))%2));
+
+ g = image->comps[1].data[i / wrr * wr + i % wrr];
+ g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
+ gc = (unsigned char) ((g >> adjust)+((g >> (adjust-1))%2));
+
+ b = image->comps[2].data[i / wrr * wr + i % wrr];
+ b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
+ bc = (unsigned char) ((b >> adjust)+((b >> (adjust-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) {
+ fprintf(stderr,"WARNING -> [PGM files] Only the first component\n");
+ fprintf(stderr," is written to the file\n");
+ }
+ for (compno = 0; compno < ncomp; compno++) {
+ char name[256];
+ if (ncomp > 1) {
+ sprintf(name, "%d.%s", compno, outfile);
+ } else {
+ sprintf(name, "%s", outfile);
+ }
+
+ fdest = fopen(name, "wb");
+ if (!fdest) {
+ fprintf(stderr, "ERROR -> failed to open %s for writing\n", name);
+ return 1;
+ }
+
+ 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++) {
+ int l;
+ unsigned char lc;
+ l = image->comps[compno].data[i / wrr * wr + i % wrr];
+ l += (image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0);
+ lc = (unsigned char) ((l >> adjust)+((l >> (adjust-1))%2));
+ fprintf(fdest, "%c", lc);
+ }
+ fclose(fdest);
+ }
+ }
+
+ return 0;
+}
+
+
generated by cgit v1.2.3 (git 2.46.0) at 2026-04-06 09:44:10 +0000