diff options
| author | mayeut <mayeut@users.noreply.github.com> | 2015-07-19 17:42:11 +0200 |
|---|---|---|
| committer | mayeut <mayeut@users.noreply.github.com> | 2015-07-19 17:42:11 +0200 |
| commit | 5bb074611aab0df7f62bfd67c1016316138a4122 (patch) | |
| tree | 281c0be4583793d8c9d9d5590f08634c02f5a04b /src/bin/jp2/convert.c | |
| parent | 46c1dd22fc6d6a8b8f2b54f9e42e1fe5ba4938a7 (diff) | |
Update PNG support
Only input modified for now
Update uclouvain/openjpeg#536
Update uclouvain/openjpeg#264
Diffstat (limited to 'src/bin/jp2/convert.c')
| -rw-r--r-- | src/bin/jp2/convert.c | 568 |
1 files changed, 0 insertions, 568 deletions
diff --git a/src/bin/jp2/convert.c b/src/bin/jp2/convert.c index bb8cfdac..6f3e0a22 100644 --- a/src/bin/jp2/convert.c +++ b/src/bin/jp2/convert.c @@ -42,15 +42,6 @@ #include <string.h> #include <ctype.h> -#ifdef OPJ_HAVE_LIBTIFF -#include <tiffio.h> -#endif /* OPJ_HAVE_LIBTIFF */ - -#ifdef OPJ_HAVE_LIBPNG -#include <zlib.h> -#include <png.h> -#endif /* OPJ_HAVE_LIBPNG */ - #include "openjpeg.h" #include "convert.h" @@ -1864,562 +1855,3 @@ int imagetorawl(opj_image_t * image, const char *outfile) return imagetoraw_common(image, outfile, OPJ_FALSE); } -#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 = NULL; - 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 + (unsigned int)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, sizeof(cmptparm)); - - sub_dx = params->subsampling_dx; sub_dy = params->subsampling_dy; - - for(i = 0; i < nr_comp; ++i) - { - cmptparm[i].prec = (OPJ_UINT32)bit_depth; - /* bits_per_pixel: 8 or 16 */ - cmptparm[i].bpp = (OPJ_UINT32)bit_depth; - cmptparm[i].sgnd = 0; - cmptparm[i].dx = (OPJ_UINT32)sub_dx; - cmptparm[i].dy = (OPJ_UINT32)sub_dy; - cmptparm[i].w = (OPJ_UINT32)width; - cmptparm[i].h = (OPJ_UINT32)height; - } - - image = opj_image_create(nr_comp, &cmptparm[0], OPJ_CLRSPC_SRGB); - - if(image == NULL) goto fin; - - image->x0 = (OPJ_UINT32)params->image_offset_x0; - image->y0 = (OPJ_UINT32)params->image_offset_y0; - image->x1 = (OPJ_UINT32)(image->x0 + (width - 1) * (OPJ_UINT32)sub_dx + 1 + image->x0); - image->y1 = (OPJ_UINT32)(image->y0 + (height - 1) * (OPJ_UINT32)sub_dy + 1 + image->y0); - - r = image->comps[0].data; - g = image->comps[1].data; - b = image->comps[2].data; - if(has_alpha) { - a = image->comps[3].data; - image->comps[3].alpha = 1; - } - - 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 = (int)image->comps[0].prec; - nr_comp = (int)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 = (int)image->comps[0].w; - height = (int)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 = (png_byte)prec; - - if(has_alpha) - { - sig_bit.alpha = (png_byte)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, (png_uint_32)width, (png_uint_32)height, prec, - color_type, - PNG_INTERLACE_NONE, - PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE); - - png_set_gamma(png, 2.2, 1./2.2); - png_set_sRGB(png, info, PNG_sRGB_INTENT_PERCEPTUAL); - /*=============================*/ - png_write_info(png, info); - /*=============================*/ - if(prec < 8) - { - png_set_packing(png); - } -// printf("%s:%d:sgnd(%d,%d,%d) w(%d) h(%d) alpha(%d)\n",__FILE__,__LINE__, -//image->comps[0].sgnd, -//image->comps[1].sgnd,image->comps[2].sgnd,width,height,has_alpha); - - 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((size_t)width * (size_t)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(v > 65535) v = 65535; else if(v < 0) v = 0; - - if(force16) { v = (v<<ushift) + (v>>dshift); } - - *d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v; - - v = *green + adjustG; ++green; - if(v > 65535) v = 65535; else if(v < 0) v = 0; - - if(force16) { v = (v<<ushift) + (v>>dshift); } - - *d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v; - - v = *blue + adjustB; ++blue; - if(v > 65535) v = 65535; else if(v < 0) v = 0; - - if(force16) { v = (v<<ushift) + (v>>dshift); } - - *d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v; - - if(has_alpha) - { - v = *alpha + adjustA; ++alpha; - if(v > 65535) v = 65535; else if(v < 0) v = 0; - - if(force16) { v = (v<<ushift) + (v>>dshift); } - - *d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v; - } - continue; - }/* if(is16) */ - - v = *red + adjustR; ++red; - if(v > 255) v = 255; else if(v < 0) v = 0; - - if(force8) { v = (v<<ushift) + (v>>dshift); } - - *d++ = (unsigned char)(v & mask); - - v = *green + adjustG; ++green; - if(v > 255) v = 255; else if(v < 0) v = 0; - - if(force8) { v = (v<<ushift) + (v>>dshift); } - - *d++ = (unsigned char)(v & mask); - - v = *blue + adjustB; ++blue; - if(v > 255) v = 255; else if(v < 0) v = 0; - - if(force8) { v = (v<<ushift) + (v>>dshift); } - - *d++ = (unsigned char)(v & mask); - - if(has_alpha) - { - v = *alpha + adjustA; ++alpha; - if(v > 255) v = 255; else if(v < 0) v = 0; - - 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 = (png_byte)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 = (png_byte)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 = (int)image->comps[0].w; - height = (int)image->comps[0].h; - - png_set_IHDR(png, info, (png_uint_32)width, (png_uint_32)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_set_gamma(png, 2.2, 1./2.2); - png_set_sRGB(png, info, PNG_sRGB_INTENT_PERCEPTUAL); - /*=============================*/ - 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((size_t)width * (size_t)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(v > 65535) v = 65535; else if(v < 0) v = 0; - - if(force16) { v = (v<<ushift) + (v>>dshift); } - - *d++ = (unsigned char)(v>>8); *d++ = (unsigned char)v; - - if(has_alpha) - { - v = *alpha++; - if(v > 65535) v = 65535; else if(v < 0) v = 0; - - 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((size_t)width, (size_t)nr_comp * 2); - - for(y = 0; y < height; ++y) - { - d = row_buf; - - for(x = 0; x < width; ++x) - { - v = *red + adjustR; ++red; - if(v > 255) v = 255; else if(v < 0) v = 0; - - if(force8) { v = (v<<ushift) + (v>>dshift); } - - *d++ = (unsigned char)(v & mask); - - if(has_alpha) - { - v = *alpha + adjustA; ++alpha; - if(v > 255) v = 255; else if(v < 0) v = 0; - - 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 */ |
