imagetopnm() has been rewritten to allow 16-bits precision, and PAM (P7) support. See Netpbm for more info. (patch from szukw000).
This commit is contained in:
Antonin Descampe
parent
7441340ab5
commit
985a163e33
3
CHANGES
3
CHANGES
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@ -5,6 +5,9 @@ What's New for OpenJPEG
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! : changed
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+ : added
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January 9, 2011
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! [antonin] imagetopnm() has been rewritten to allow 16-bits precision, and PAM (P7) support. See Netpbm for more info. (patch from szukw000).
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January 7, 2011
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! [szukw000] changed report code in Makefile.am
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368
codec/convert.c
368
codec/convert.c
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@ -35,6 +35,12 @@
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#include <stdlib.h>
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#include <string.h>
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#ifdef _WIN32
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#define BYTE_ORDER LITTLE_ENDIAN
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#else
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#include <endian.h>
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#endif
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#ifdef HAVE_LIBTIFF
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#ifdef _WIN32
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#include "../libs/libtiff/tiffio.h"
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@ -67,25 +73,6 @@ static int int_floorlog2(int a) {
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return l;
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}
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/*
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* Divide an integer by a power of 2 and round upwards.
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*
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* a divided by 2^b
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*/
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static int int_ceildivpow2(int a, int b) {
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return (a + (1 << b) - 1) >> b;
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}
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/*
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* Divide an integer and round upwards.
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*
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* a divided by b
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*/
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static int int_ceildiv(int a, int b) {
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return (a + b - 1) / b;
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}
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/* -->> -->> -->> -->>
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TGA IMAGE FORMAT
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@ -1278,141 +1265,236 @@ opj_image_t* pnmtoimage(const char *filename, opj_cparameters_t *parameters) {
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return image;
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}
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int imagetopnm(opj_image_t * image, const char *outfile) {
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int w, wr, h, hr, max;
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int i, compno;
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int adjustR, adjustG, adjustB, adjustX;
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int imagetopnm(opj_image_t * image, const char *outfile)
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{
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int *red, *green, *blue, *alpha;
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int wr, hr, max;
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int i, compno, ncomp;
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int adjustR, adjustG, adjustB;
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int fails, is16, force16, want_gray, has_alpha;
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int prec, opj_prec, ushift, dshift, v;
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FILE *fdest = NULL;
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char S2;
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const char *tmp = outfile;
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char *destname;
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while (*tmp) {
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tmp++;
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}
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tmp--;
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tmp--;
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S2 = *tmp;
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if((opj_prec = image->comps[0].prec) > 16)
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{
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fprintf(stderr,"%s:%d:imagetopnm\n\tprecision %d is larger than 16"
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"\n\t: refused.\n",__FILE__,__LINE__,opj_prec);
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return 1;
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}
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prec = opj_prec;
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is16 = force16 = ushift = dshift = has_alpha = 0; fails = 1;
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if (image->numcomps == 3 && image->comps[0].dx == image->comps[1].dx
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&& image->comps[1].dx == image->comps[2].dx
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&& image->comps[0].dy == image->comps[1].dy
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&& image->comps[1].dy == image->comps[2].dy
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&& image->comps[0].prec == image->comps[1].prec
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&& image->comps[1].prec == image->comps[2].prec
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&& S2 !='g' && S2 !='G') {
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if(prec > 8 && prec < 16)
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{
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prec = 16; force16 = 1;
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}
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fdest = fopen(outfile, "wb");
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if (!fdest) {
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fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
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return 1;
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}
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while (*tmp) ++tmp; tmp -= 2;
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want_gray = (*tmp == 'g' || *tmp == 'G');
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ncomp = image->numcomps;
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w = int_ceildiv(image->x1 - image->x0, image->comps[0].dx);
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wr = image->comps[0].w;
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fprintf(stderr,"%s:%d:ncomp(%d) opj_prec(%d) prec(%d)\n",
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__FILE__,__LINE__,ncomp,opj_prec,prec);
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h = int_ceildiv(image->y1 - image->y0, image->comps[0].dy);
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hr = image->comps[0].h;
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if (ncomp > 2
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&& image->comps[0].dx == image->comps[1].dx
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&& image->comps[1].dx == image->comps[2].dx
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&& image->comps[0].dy == image->comps[1].dy
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&& image->comps[1].dy == image->comps[2].dy
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&& image->comps[0].prec == image->comps[1].prec
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&& image->comps[1].prec == image->comps[2].prec
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&& !want_gray
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)
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{
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fdest = fopen(outfile, "wb");
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max = image->comps[0].prec > 8 ? 255 : (1 << image->comps[0].prec) - 1;
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if (!fdest)
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{
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fprintf(stderr, "ERROR -> failed to open %s for writing\n", outfile);
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return fails;
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}
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wr = image->comps[0].w; hr = image->comps[0].h;
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image->comps[0].x0 = int_ceildivpow2(image->comps[0].x0 - int_ceildiv(image->x0, image->comps[0].dx), image->comps[0].factor);
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image->comps[0].y0 = int_ceildivpow2(image->comps[0].y0 - int_ceildiv(image->y0, image->comps[0].dy), image->comps[0].factor);
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max = (1<<prec) - 1; has_alpha = (ncomp == 4);
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fprintf(fdest, "P6\n%d %d\n%d\n", wr, hr, max);
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is16 = (prec == 16);
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if (image->comps[0].prec > 8) {
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adjustR = image->comps[0].prec - 8;
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printf("PNM CONVERSION: Truncating component 0 from %d bits to 8 bits\n", image->comps[0].prec);
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}
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else
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adjustR = 0;
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if (image->comps[1].prec > 8) {
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adjustG = image->comps[1].prec - 8;
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printf("PNM CONVERSION: Truncating component 1 from %d bits to 8 bits\n", image->comps[1].prec);
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}
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else
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adjustG = 0;
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if (image->comps[2].prec > 8) {
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adjustB = image->comps[2].prec - 8;
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printf("PNM CONVERSION: Truncating component 2 from %d bits to 8 bits\n", image->comps[2].prec);
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}
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else
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adjustB = 0;
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red = image->comps[0].data;
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green = image->comps[1].data;
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blue = image->comps[2].data;
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if(has_alpha)
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{
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fprintf(fdest, "P7\n# OpenJPEG-%s\nWIDTH %d\nHEIGHT %d\nDEPTH 4\n"
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"MAXVAL %d\nTUPLTYPE RGB_ALPHA\nENDHDR\n", opj_version(),
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wr, hr, max);
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alpha = image->comps[3].data;
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}
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else
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{
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fprintf(fdest, "P6\n# OpenJPEG-%s\n%d %d\n%d\n",
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opj_version(), wr, hr, max);
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alpha = NULL;
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}
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if(force16)
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{
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ushift = 16 - opj_prec; dshift = opj_prec - ushift;
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}
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adjustR = (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
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adjustG = (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
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adjustB = (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
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for (i = 0; i < wr * hr; i++) {
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int r, g, b;
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unsigned char rc,gc,bc;
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r = image->comps[0].data[i];
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r += (image->comps[0].sgnd ? 1 << (image->comps[0].prec - 1) : 0);
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rc = (unsigned char) ((r >> adjustR)+((r >> (adjustR-1))%2));
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for(i = 0; i < wr * hr; ++i)
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{
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if(is16)
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{
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/* MSB first: 'man ppm' */
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g = image->comps[1].data[i];
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g += (image->comps[1].sgnd ? 1 << (image->comps[1].prec - 1) : 0);
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gc = (unsigned char) ((g >> adjustG)+((g >> (adjustG-1))%2));
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v = *red + adjustR; ++red;
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b = image->comps[2].data[i];
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b += (image->comps[2].sgnd ? 1 << (image->comps[2].prec - 1) : 0);
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bc = (unsigned char) ((b >> adjustB)+((b >> (adjustB-1))%2));
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if(force16) { v = (v<<ushift) + (v>>dshift); }
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fprintf(fdest, "%c%c%c", rc, gc, bc);
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}
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fclose(fdest);
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#if BYTE_ORDER == LITTLE_ENDIAN
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fprintf(fdest, "%c%c",(unsigned char)v, (unsigned char)(v/256));
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#else
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fprintf(fdest, "%c%c",(unsigned char)(v/256), (unsigned char)v);
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#endif
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v = *green + adjustG; ++green;
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} else {
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int ncomp=(S2=='g' || S2=='G')?1:image->numcomps;
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if (image->numcomps > ncomp) {
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fprintf(stderr,"WARNING -> [PGM files] Only the first component\n");
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fprintf(stderr," is written to the file\n");
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}
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for (compno = 0; compno < ncomp; compno++) {
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char name[256];
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if (ncomp > 1) {
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sprintf(name, "%d.%s", compno, outfile);
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} else {
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sprintf(name, "%s", outfile);
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}
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if(force16) { v = (v<<ushift) + (v>>dshift); }
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fdest = fopen(name, "wb");
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if (!fdest) {
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fprintf(stderr, "ERROR -> failed to open %s for writing\n", name);
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return 1;
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}
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#if BYTE_ORDER == LITTLE_ENDIAN
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fprintf(fdest, "%c%c",(unsigned char)v, (unsigned char)(v/256));
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#else
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fprintf(fdest, "%c%c",(unsigned char)(v/256), (unsigned char)v);
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#endif
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w = int_ceildiv(image->x1 - image->x0, image->comps[compno].dx);
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wr = image->comps[compno].w;
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v = *blue + adjustB; ++blue;
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h = int_ceildiv(image->y1 - image->y0, image->comps[compno].dy);
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hr = image->comps[compno].h;
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if(force16) { v = (v<<ushift) + (v>>dshift); }
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max = image->comps[compno].prec > 8 ? 255 : (1 << image->comps[compno].prec) - 1;
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#if BYTE_ORDER == LITTLE_ENDIAN
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fprintf(fdest, "%c%c",(unsigned char)v, (unsigned char)(v/256));
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#else
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fprintf(fdest, "%c%c",(unsigned char)(v/256), (unsigned char)v);
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#endif
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image->comps[compno].x0 = int_ceildivpow2(image->comps[compno].x0 - int_ceildiv(image->x0, image->comps[compno].dx), image->comps[compno].factor);
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image->comps[compno].y0 = int_ceildivpow2(image->comps[compno].y0 - int_ceildiv(image->y0, image->comps[compno].dy), image->comps[compno].factor);
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if(has_alpha)
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{
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v = *alpha++;
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fprintf(fdest, "P5\n%d %d\n%d\n", wr, hr, max);
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if(force16) { v = (v<<ushift) + (v>>dshift); }
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if (image->comps[compno].prec > 8) {
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adjustX = image->comps[0].prec - 8;
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printf("PNM CONVERSION: Truncating component %d from %d bits to 8 bits\n",compno, image->comps[compno].prec);
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}
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else
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adjustX = 0;
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#if BYTE_ORDER == LITTLE_ENDIAN
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fprintf(fdest, "%c%c",(unsigned char)v, (unsigned char)(v/256));
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#else
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fprintf(fdest, "%c%c",(unsigned char)(v/256), (unsigned char)v);
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#endif
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}
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continue;
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for (i = 0; i < wr * hr; i++) {
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int l;
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unsigned char lc;
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l = image->comps[compno].data[i];
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l += (image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0);
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lc = (unsigned char) ((l >> adjustX)+((l >> (adjustX-1))%2));
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fprintf(fdest, "%c", lc);
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}
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fclose(fdest);
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}
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}
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}
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/* prec <= 8: */
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fprintf(fdest, "%c%c%c",(unsigned char)*red++, (unsigned char)*green++,
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(unsigned char)*blue++);
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if(has_alpha)
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fprintf(fdest, "%c", (unsigned char)*alpha++);
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} /* for(i */
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fclose(fdest); return 0;
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}
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if(force16)
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{
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ushift = 16 - opj_prec; dshift = opj_prec - ushift;
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}
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/* YUV or MONO: */
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if(want_gray) ncomp = 1;
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//FIXME: with[out] alpha ?
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has_alpha = 0; alpha = NULL;
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if (image->numcomps > ncomp)
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{
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fprintf(stderr,"WARNING -> [PGM file] Only the first component\n");
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fprintf(stderr," is written to the file\n");
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}
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destname = (char*)malloc(strlen(outfile) + 8);
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for (compno = 0; compno < ncomp; compno++)
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{
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if (ncomp > 1)
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sprintf(destname, "%d.%s", compno, outfile);
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else
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sprintf(destname, "%s", outfile);
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fdest = fopen(destname, "wb");
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if (!fdest)
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{
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fprintf(stderr, "ERROR -> failed to open %s for writing\n", destname);
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free(destname);
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return 1;
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}
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wr = image->comps[compno].w; hr = image->comps[compno].h;
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max = (1<<prec) - 1;
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fprintf(fdest, "P5\n#OpenJPEG-%s\n%d %d\n%d\n",
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opj_version(), wr, hr, max);
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red = image->comps[compno].data;
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adjustR =
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(image->comps[compno].sgnd ? 1 << (image->comps[compno].prec - 1) : 0);
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if(prec > 8)
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{
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/* MSB first: 'man ppm' */
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for (i = 0; i < wr * hr; i++)
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{
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v = *red + adjustR; ++red;
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if(force16) { v = (v<<ushift) + (v>>dshift); }
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#if BYTE_ORDER == LITTLE_ENDIAN
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fprintf(fdest, "%c%c",(unsigned char)v, (unsigned char)(v/256));
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#else
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fprintf(fdest, "%c%c",(unsigned char)(v/256), (unsigned char)v);
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#endif
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if(has_alpha)
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{
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v = *alpha++;
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if(force16) { v = (v<<ushift) + (v>>dshift); }
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#if BYTE_ORDER == LITTLE_ENDIAN
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fprintf(fdest, "%c%c",(unsigned char)v, (unsigned char)(v/256));
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#else
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fprintf(fdest, "%c%c",(unsigned char)(v/256), (unsigned char)v);
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#endif
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}
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}/* for(i */
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}
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else /* prec <= 8 */
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{
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for(i = 0; i < wr * hr; ++i)
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{
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fprintf(fdest, "%c", (unsigned char)(*red + adjustR)); ++red;
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}
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}
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fclose(fdest);
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} /* for (compno */
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free(destname);
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return 0;
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}
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}/* imagetopnm() */
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#ifdef HAVE_LIBTIFF
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/* -->> -->> -->> -->>
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@ -2517,19 +2599,30 @@ int imagetopng(opj_image_t * image, const char *write_idf)
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if(force16) { v = (v<<ushift) + (v>>dshift); }
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#if BYTE_ORDER == LITTLE_ENDIAN
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*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
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#else
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*d++ = (unsigned char)(v>>24); *d++ = (unsigned char)(v>>16);
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#endif
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v = *green + adjustG; ++green;
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if(force16) { v = (v<<ushift) + (v>>dshift); }
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#if BYTE_ORDER == LITTLE_ENDIAN
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*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
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#else
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*d++ = (unsigned char)(v>>24); *d++ = (unsigned char)(v>>16);
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#endif
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v = *blue + adjustB; ++blue;
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if(force16) { v = (v<<ushift) + (v>>dshift); }
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#if BYTE_ORDER == LITTLE_ENDIAN
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*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
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#else
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*d++ = (unsigned char)(v>>24); *d++ = (unsigned char)(v>>16);
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#endif
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if(has_alpha)
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{
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@ -2537,7 +2630,11 @@ int imagetopng(opj_image_t * image, const char *write_idf)
|
|||
|
||||
if(force16) { v = (v<<ushift) + (v>>dshift); }
|
||||
|
||||
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
|
||||
#if BYTE_ORDER == LITTLE_ENDIAN
|
||||
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
|
||||
#else
|
||||
*d++ = (unsigned char)(v>>24); *d++ = (unsigned char)(v>>16);
|
||||
#endif
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
|
@ -2621,7 +2718,11 @@ int imagetopng(opj_image_t * image, const char *write_idf)
|
|||
|
||||
if(force16) { v = (v<<ushift) + (v>>dshift); }
|
||||
|
||||
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)(v & 0xff);
|
||||
#if BYTE_ORDER == LITTLE_ENDIAN
|
||||
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
|
||||
#else
|
||||
*d++ = (unsigned char)(v>>24); *d++ = (unsigned char)(v>>16);
|
||||
#endif
|
||||
|
||||
if(has_alpha)
|
||||
{
|
||||
|
|
@ -2629,7 +2730,11 @@ int imagetopng(opj_image_t * image, const char *write_idf)
|
|||
|
||||
if(force16) { v = (v<<ushift) + (v>>dshift); }
|
||||
|
||||
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)(v & 0xff);
|
||||
#if BYTE_ORDER == LITTLE_ENDIAN
|
||||
*d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v;
|
||||
#else
|
||||
*d++ = (unsigned char)(v>>24); *d++ = (unsigned char)(v>>16);
|
||||
#endif
|
||||
}
|
||||
}/* for(x) */
|
||||
png_write_row(png, row_buf);
|
||||
|
|
@ -2683,4 +2788,3 @@ fin:
|
|||
return fails;
|
||||
}/* imagetopng() */
|
||||
#endif /* HAVE_LIBPNG */
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue