diff options
author | Dan Sinclair <dsinclair@chromium.org> | 2016-03-14 13:35:12 -0400 |
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committer | Dan Sinclair <dsinclair@chromium.org> | 2016-03-14 13:35:12 -0400 |
commit | 764ec513eecbebd12781bcc96ce81ed5e736ee92 (patch) | |
tree | 12763fde4be1f10ea1183d92185917b2b587e00b /core/src/fxcodec/codec/fx_codec_jpx_opj.cpp | |
parent | 97da97662417085774f75c26e535c6fbe70266ae (diff) | |
download | pdfium-764ec513eecbebd12781bcc96ce81ed5e736ee92.tar.xz |
Move core/src/ up to core/.
This CL moves the core/src/ files up to core/ and fixes up the include guards,
includes and build files.
R=tsepez@chromium.org
Review URL: https://codereview.chromium.org/1800523005 .
Diffstat (limited to 'core/src/fxcodec/codec/fx_codec_jpx_opj.cpp')
-rw-r--r-- | core/src/fxcodec/codec/fx_codec_jpx_opj.cpp | 888 |
1 files changed, 0 insertions, 888 deletions
diff --git a/core/src/fxcodec/codec/fx_codec_jpx_opj.cpp b/core/src/fxcodec/codec/fx_codec_jpx_opj.cpp deleted file mode 100644 index 4ace3ad220..0000000000 --- a/core/src/fxcodec/codec/fx_codec_jpx_opj.cpp +++ /dev/null @@ -1,888 +0,0 @@ -// Copyright 2014 PDFium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com - -#include <algorithm> -#include <limits> -#include <vector> - -#include "core/include/fpdfapi/fpdf_resource.h" -#include "core/include/fxcodec/fx_codec.h" -#include "core/include/fxcrt/fx_safe_types.h" -#include "core/src/fxcodec/codec/codec_int.h" -#include "third_party/lcms2-2.6/include/lcms2.h" -#include "third_party/libopenjpeg20/openjpeg.h" - -static void fx_error_callback(const char* msg, void* client_data) { - (void)client_data; -} -static void fx_warning_callback(const char* msg, void* client_data) { - (void)client_data; -} -static void fx_info_callback(const char* msg, void* client_data) { - (void)client_data; -} -OPJ_SIZE_T opj_read_from_memory(void* p_buffer, - OPJ_SIZE_T nb_bytes, - void* p_user_data) { - DecodeData* srcData = static_cast<DecodeData*>(p_user_data); - if (!srcData || !srcData->src_data || srcData->src_size == 0) { - return -1; - } - // Reads at EOF return an error code. - if (srcData->offset >= srcData->src_size) { - return -1; - } - OPJ_SIZE_T bufferLength = srcData->src_size - srcData->offset; - OPJ_SIZE_T readlength = nb_bytes < bufferLength ? nb_bytes : bufferLength; - memcpy(p_buffer, &srcData->src_data[srcData->offset], readlength); - srcData->offset += readlength; - return readlength; -} -OPJ_SIZE_T opj_write_from_memory(void* p_buffer, - OPJ_SIZE_T nb_bytes, - void* p_user_data) { - DecodeData* srcData = static_cast<DecodeData*>(p_user_data); - if (!srcData || !srcData->src_data || srcData->src_size == 0) { - return -1; - } - // Writes at EOF return an error code. - if (srcData->offset >= srcData->src_size) { - return -1; - } - OPJ_SIZE_T bufferLength = srcData->src_size - srcData->offset; - OPJ_SIZE_T writeLength = nb_bytes < bufferLength ? nb_bytes : bufferLength; - memcpy(&srcData->src_data[srcData->offset], p_buffer, writeLength); - srcData->offset += writeLength; - return writeLength; -} -OPJ_OFF_T opj_skip_from_memory(OPJ_OFF_T nb_bytes, void* p_user_data) { - DecodeData* srcData = static_cast<DecodeData*>(p_user_data); - if (!srcData || !srcData->src_data || srcData->src_size == 0) { - return -1; - } - // Offsets are signed and may indicate a negative skip. Do not support this - // because of the strange return convention where either bytes skipped or - // -1 is returned. Following that convention, a successful relative seek of - // -1 bytes would be required to to give the same result as the error case. - if (nb_bytes < 0) { - return -1; - } - // FIXME: use std::make_unsigned<OPJ_OFF_T>::type once c++11 lib is OK'd. - uint64_t unsignedNbBytes = static_cast<uint64_t>(nb_bytes); - // Additionally, the offset may take us beyond the range of a size_t (e.g. - // 32-bit platforms). If so, just clamp at EOF. - if (unsignedNbBytes > - std::numeric_limits<OPJ_SIZE_T>::max() - srcData->offset) { - srcData->offset = srcData->src_size; - } else { - OPJ_SIZE_T checkedNbBytes = static_cast<OPJ_SIZE_T>(unsignedNbBytes); - // Otherwise, mimic fseek() semantics to always succeed, even past EOF, - // clamping at EOF. We can get away with this since we don't actually - // provide negative relative skips from beyond EOF back to inside the - // data, which would be the only reason to need to know exactly how far - // beyond EOF we are. - srcData->offset = - std::min(srcData->offset + checkedNbBytes, srcData->src_size); - } - return nb_bytes; -} -OPJ_BOOL opj_seek_from_memory(OPJ_OFF_T nb_bytes, void* p_user_data) { - DecodeData* srcData = static_cast<DecodeData*>(p_user_data); - if (!srcData || !srcData->src_data || srcData->src_size == 0) { - return OPJ_FALSE; - } - // Offsets are signed and may indicate a negative position, which would - // be before the start of the file. Do not support this. - if (nb_bytes < 0) { - return OPJ_FALSE; - } - // FIXME: use std::make_unsigned<OPJ_OFF_T>::type once c++11 lib is OK'd. - uint64_t unsignedNbBytes = static_cast<uint64_t>(nb_bytes); - // Additionally, the offset may take us beyond the range of a size_t (e.g. - // 32-bit platforms). If so, just clamp at EOF. - if (unsignedNbBytes > std::numeric_limits<OPJ_SIZE_T>::max()) { - srcData->offset = srcData->src_size; - } else { - OPJ_SIZE_T checkedNbBytes = static_cast<OPJ_SIZE_T>(nb_bytes); - // Otherwise, mimic fseek() semantics to always succeed, even past EOF, - // again clamping at EOF. - srcData->offset = std::min(checkedNbBytes, srcData->src_size); - } - return OPJ_TRUE; -} -opj_stream_t* fx_opj_stream_create_memory_stream(DecodeData* data, - OPJ_SIZE_T p_size, - OPJ_BOOL p_is_read_stream) { - opj_stream_t* l_stream = 00; - if (!data || !data->src_data || data->src_size <= 0) { - return NULL; - } - l_stream = opj_stream_create(p_size, p_is_read_stream); - if (!l_stream) { - return NULL; - } - opj_stream_set_user_data(l_stream, data, NULL); - opj_stream_set_user_data_length(l_stream, data->src_size); - opj_stream_set_read_function(l_stream, opj_read_from_memory); - opj_stream_set_write_function(l_stream, opj_write_from_memory); - opj_stream_set_skip_function(l_stream, opj_skip_from_memory); - opj_stream_set_seek_function(l_stream, opj_seek_from_memory); - return l_stream; -} -static void sycc_to_rgb(int offset, - int upb, - int y, - int cb, - int cr, - int* out_r, - int* out_g, - int* out_b) { - int r, g, b; - cb -= offset; - cr -= offset; - r = y + (int)(1.402 * (float)cr); - if (r < 0) { - r = 0; - } else if (r > upb) { - r = upb; - } - *out_r = r; - g = y - (int)(0.344 * (float)cb + 0.714 * (float)cr); - if (g < 0) { - g = 0; - } else if (g > upb) { - g = upb; - } - *out_g = g; - b = y + (int)(1.772 * (float)cb); - if (b < 0) { - b = 0; - } else if (b > upb) { - b = upb; - } - *out_b = b; -} -static void sycc444_to_rgb(opj_image_t* img) { - int prec = img->comps[0].prec; - int offset = 1 << (prec - 1); - int upb = (1 << prec) - 1; - OPJ_UINT32 maxw = - std::min(std::min(img->comps[0].w, img->comps[1].w), img->comps[2].w); - OPJ_UINT32 maxh = - std::min(std::min(img->comps[0].h, img->comps[1].h), img->comps[2].h); - FX_SAFE_SIZE_T max_size = maxw; - max_size *= maxh; - if (!max_size.IsValid()) - return; - - const int* y = img->comps[0].data; - const int* cb = img->comps[1].data; - const int* cr = img->comps[2].data; - int *d0, *d1, *d2, *r, *g, *b; - d0 = r = FX_Alloc(int, max_size.ValueOrDie()); - d1 = g = FX_Alloc(int, max_size.ValueOrDie()); - d2 = b = FX_Alloc(int, max_size.ValueOrDie()); - for (size_t i = 0; i < max_size.ValueOrDie(); ++i) { - sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); - ++y; - ++cb; - ++cr; - ++r; - ++g; - ++b; - } - FX_Free(img->comps[0].data); - img->comps[0].data = d0; - FX_Free(img->comps[1].data); - img->comps[1].data = d1; - FX_Free(img->comps[2].data); - img->comps[2].data = d2; -} -static void sycc422_to_rgb(opj_image_t* img) { - int prec = img->comps[0].prec; - int offset = 1 << (prec - 1); - int upb = (1 << prec) - 1; - OPJ_UINT32 maxw = - std::min(std::min(img->comps[0].w, img->comps[1].w), img->comps[2].w); - OPJ_UINT32 maxh = - std::min(std::min(img->comps[0].h, img->comps[1].h), img->comps[2].h); - FX_SAFE_SIZE_T max_size = maxw; - max_size *= maxh; - if (!max_size.IsValid()) - return; - - const int* y = img->comps[0].data; - const int* cb = img->comps[1].data; - const int* cr = img->comps[2].data; - int *d0, *d1, *d2, *r, *g, *b; - d0 = r = FX_Alloc(int, max_size.ValueOrDie()); - d1 = g = FX_Alloc(int, max_size.ValueOrDie()); - d2 = b = FX_Alloc(int, max_size.ValueOrDie()); - for (uint32_t i = 0; i < maxh; ++i) { - OPJ_UINT32 j; - for (j = 0; j < (maxw & ~static_cast<OPJ_UINT32>(1)); j += 2) { - sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); - ++y; - ++r; - ++g; - ++b; - sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); - ++y; - ++r; - ++g; - ++b; - ++cb; - ++cr; - } - if (j < maxw) { - sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); - ++y; - ++r; - ++g; - ++b; - ++cb; - ++cr; - } - } - FX_Free(img->comps[0].data); - img->comps[0].data = d0; - FX_Free(img->comps[1].data); - img->comps[1].data = d1; - FX_Free(img->comps[2].data); - img->comps[2].data = d2; - img->comps[1].w = maxw; - img->comps[1].h = maxh; - img->comps[2].w = maxw; - img->comps[2].h = maxh; - img->comps[1].dx = img->comps[0].dx; - img->comps[2].dx = img->comps[0].dx; - img->comps[1].dy = img->comps[0].dy; - img->comps[2].dy = img->comps[0].dy; -} -static bool sycc420_size_is_valid(OPJ_UINT32 y, OPJ_UINT32 cbcr) { - if (!y || !cbcr) - return false; - - return (cbcr == y / 2) || ((y & 1) && (cbcr == y / 2 + 1)); -} -static bool sycc420_must_extend_cbcr(OPJ_UINT32 y, OPJ_UINT32 cbcr) { - return (y & 1) && (cbcr == y / 2); -} -void sycc420_to_rgb(opj_image_t* img) { - OPJ_UINT32 prec = img->comps[0].prec; - if (!prec) - return; - OPJ_UINT32 offset = 1 << (prec - 1); - OPJ_UINT32 upb = (1 << prec) - 1; - OPJ_UINT32 yw = img->comps[0].w; - OPJ_UINT32 yh = img->comps[0].h; - OPJ_UINT32 cbw = img->comps[1].w; - OPJ_UINT32 cbh = img->comps[1].h; - OPJ_UINT32 crw = img->comps[2].w; - OPJ_UINT32 crh = img->comps[2].h; - if (cbw != crw || cbh != crh) - return; - if (!sycc420_size_is_valid(yw, cbw) || !sycc420_size_is_valid(yh, cbh)) - return; - bool extw = sycc420_must_extend_cbcr(yw, cbw); - bool exth = sycc420_must_extend_cbcr(yh, cbh); - FX_SAFE_DWORD safeSize = yw; - safeSize *= yh; - if (!safeSize.IsValid()) - return; - int* r = FX_Alloc(int, safeSize.ValueOrDie()); - int* g = FX_Alloc(int, safeSize.ValueOrDie()); - int* b = FX_Alloc(int, safeSize.ValueOrDie()); - int* d0 = r; - int* d1 = g; - int* d2 = b; - const int* y = img->comps[0].data; - const int* cb = img->comps[1].data; - const int* cr = img->comps[2].data; - const int* ny = nullptr; - int* nr = nullptr; - int* ng = nullptr; - int* nb = nullptr; - OPJ_UINT32 i = 0; - OPJ_UINT32 j = 0; - for (i = 0; i < (yh & ~(OPJ_UINT32)1); i += 2) { - ny = y + yw; - nr = r + yw; - ng = g + yw; - nb = b + yw; - for (j = 0; j < (yw & ~(OPJ_UINT32)1); j += 2) { - sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); - ++y; - ++r; - ++g; - ++b; - sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); - ++y; - ++r; - ++g; - ++b; - sycc_to_rgb(offset, upb, *ny, *cb, *cr, nr, ng, nb); - ++ny; - ++nr; - ++ng; - ++nb; - sycc_to_rgb(offset, upb, *ny, *cb, *cr, nr, ng, nb); - ++ny; - ++nr; - ++ng; - ++nb; - ++cb; - ++cr; - } - if (j < yw) { - if (extw) { - --cb; - --cr; - } - sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); - ++y; - ++r; - ++g; - ++b; - sycc_to_rgb(offset, upb, *ny, *cb, *cr, nr, ng, nb); - ++ny; - ++nr; - ++ng; - ++nb; - ++cb; - ++cr; - } - y += yw; - r += yw; - g += yw; - b += yw; - } - if (i < yh) { - if (exth) { - cb -= cbw; - cr -= crw; - } - for (j = 0; j < (yw & ~(OPJ_UINT32)1); j += 2) { - sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); - ++y; - ++r; - ++g; - ++b; - sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); - ++y; - ++r; - ++g; - ++b; - ++cb; - ++cr; - } - if (j < yw) { - if (extw) { - --cb; - --cr; - } - sycc_to_rgb(offset, upb, *y, *cb, *cr, r, g, b); - } - } - - FX_Free(img->comps[0].data); - img->comps[0].data = d0; - FX_Free(img->comps[1].data); - img->comps[1].data = d1; - FX_Free(img->comps[2].data); - img->comps[2].data = d2; - img->comps[1].w = yw; - img->comps[1].h = yh; - img->comps[2].w = yw; - img->comps[2].h = yh; - img->comps[1].w = yw; - img->comps[1].h = yh; - img->comps[2].w = yw; - img->comps[2].h = yh; - img->comps[1].dx = img->comps[0].dx; - img->comps[2].dx = img->comps[0].dx; - img->comps[1].dy = img->comps[0].dy; - img->comps[2].dy = img->comps[0].dy; -} -void color_sycc_to_rgb(opj_image_t* img) { - if (img->numcomps < 3) { - img->color_space = OPJ_CLRSPC_GRAY; - return; - } - if ((img->comps[0].dx == 1) && (img->comps[1].dx == 2) && - (img->comps[2].dx == 2) && (img->comps[0].dy == 1) && - (img->comps[1].dy == 2) && (img->comps[2].dy == 2)) { - sycc420_to_rgb(img); - } else if ((img->comps[0].dx == 1) && (img->comps[1].dx == 2) && - (img->comps[2].dx == 2) && (img->comps[0].dy == 1) && - (img->comps[1].dy == 1) && (img->comps[2].dy == 1)) { - sycc422_to_rgb(img); - } else if ((img->comps[0].dx == 1) && (img->comps[1].dx == 1) && - (img->comps[2].dx == 1) && (img->comps[0].dy == 1) && - (img->comps[1].dy == 1) && (img->comps[2].dy == 1)) { - sycc444_to_rgb(img); - } else { - return; - } - img->color_space = OPJ_CLRSPC_SRGB; -} -void color_apply_icc_profile(opj_image_t* image) { - cmsHPROFILE out_prof; - cmsUInt32Number in_type; - cmsUInt32Number out_type; - int* r; - int* g; - int* b; - int max; - cmsHPROFILE in_prof = - cmsOpenProfileFromMem(image->icc_profile_buf, image->icc_profile_len); - if (!in_prof) { - return; - } - cmsColorSpaceSignature out_space = cmsGetColorSpace(in_prof); - cmsUInt32Number intent = cmsGetHeaderRenderingIntent(in_prof); - int max_w = (int)image->comps[0].w; - int max_h = (int)image->comps[0].h; - int prec = (int)image->comps[0].prec; - OPJ_COLOR_SPACE oldspace = image->color_space; - if (out_space == cmsSigRgbData) { - if (prec <= 8) { - in_type = TYPE_RGB_8; - out_type = TYPE_RGB_8; - } else { - in_type = TYPE_RGB_16; - out_type = TYPE_RGB_16; - } - out_prof = cmsCreate_sRGBProfile(); - image->color_space = OPJ_CLRSPC_SRGB; - } else if (out_space == cmsSigGrayData) { - if (prec <= 8) { - in_type = TYPE_GRAY_8; - out_type = TYPE_RGB_8; - } else { - in_type = TYPE_GRAY_16; - out_type = TYPE_RGB_16; - } - out_prof = cmsCreate_sRGBProfile(); - image->color_space = OPJ_CLRSPC_SRGB; - } else if (out_space == cmsSigYCbCrData) { - in_type = TYPE_YCbCr_16; - out_type = TYPE_RGB_16; - out_prof = cmsCreate_sRGBProfile(); - image->color_space = OPJ_CLRSPC_SRGB; - } else { - return; - } - cmsHTRANSFORM transform = - cmsCreateTransform(in_prof, in_type, out_prof, out_type, intent, 0); - cmsCloseProfile(in_prof); - cmsCloseProfile(out_prof); - if (!transform) { - image->color_space = oldspace; - return; - } - if (image->numcomps > 2) { - if (prec <= 8) { - unsigned char *inbuf, *outbuf, *in, *out; - max = max_w * max_h; - cmsUInt32Number nr_samples = max * 3 * sizeof(unsigned char); - in = inbuf = FX_Alloc(unsigned char, nr_samples); - out = outbuf = FX_Alloc(unsigned char, nr_samples); - r = image->comps[0].data; - g = image->comps[1].data; - b = image->comps[2].data; - for (int i = 0; i < max; ++i) { - *in++ = (unsigned char)*r++; - *in++ = (unsigned char)*g++; - *in++ = (unsigned char)*b++; - } - cmsDoTransform(transform, inbuf, outbuf, (cmsUInt32Number)max); - r = image->comps[0].data; - g = image->comps[1].data; - b = image->comps[2].data; - for (int i = 0; i < max; ++i) { - *r++ = (int)*out++; - *g++ = (int)*out++; - *b++ = (int)*out++; - } - FX_Free(inbuf); - FX_Free(outbuf); - } else { - unsigned short *inbuf, *outbuf, *in, *out; - max = max_w * max_h; - cmsUInt32Number nr_samples = max * 3 * sizeof(unsigned short); - in = inbuf = FX_Alloc(unsigned short, nr_samples); - out = outbuf = FX_Alloc(unsigned short, nr_samples); - r = image->comps[0].data; - g = image->comps[1].data; - b = image->comps[2].data; - for (int i = 0; i < max; ++i) { - *in++ = (unsigned short)*r++; - *in++ = (unsigned short)*g++; - *in++ = (unsigned short)*b++; - } - cmsDoTransform(transform, inbuf, outbuf, (cmsUInt32Number)max); - r = image->comps[0].data; - g = image->comps[1].data; - b = image->comps[2].data; - for (int i = 0; i < max; ++i) { - *r++ = (int)*out++; - *g++ = (int)*out++; - *b++ = (int)*out++; - } - FX_Free(inbuf); - FX_Free(outbuf); - } - } else { - unsigned char *in, *inbuf, *out, *outbuf; - max = max_w * max_h; - cmsUInt32Number nr_samples = - (cmsUInt32Number)max * 3 * sizeof(unsigned char); - in = inbuf = FX_Alloc(unsigned char, nr_samples); - out = outbuf = FX_Alloc(unsigned char, nr_samples); - image->comps = (opj_image_comp_t*)realloc( - image->comps, (image->numcomps + 2) * sizeof(opj_image_comp_t)); - if (image->numcomps == 2) { - image->comps[3] = image->comps[1]; - } - image->comps[1] = image->comps[0]; - image->comps[2] = image->comps[0]; - image->comps[1].data = FX_Alloc(int, (size_t)max); - FXSYS_memset(image->comps[1].data, 0, sizeof(int) * (size_t)max); - image->comps[2].data = FX_Alloc(int, (size_t)max); - FXSYS_memset(image->comps[2].data, 0, sizeof(int) * (size_t)max); - image->numcomps += 2; - r = image->comps[0].data; - for (int i = 0; i < max; ++i) { - *in++ = (unsigned char)*r++; - } - cmsDoTransform(transform, inbuf, outbuf, (cmsUInt32Number)max); - r = image->comps[0].data; - g = image->comps[1].data; - b = image->comps[2].data; - for (int i = 0; i < max; ++i) { - *r++ = (int)*out++; - *g++ = (int)*out++; - *b++ = (int)*out++; - } - FX_Free(inbuf); - FX_Free(outbuf); - } - cmsDeleteTransform(transform); -} -void color_apply_conversion(opj_image_t* image) { - int* row; - int enumcs, numcomps; - numcomps = image->numcomps; - if (numcomps < 3) { - return; - } - row = (int*)image->icc_profile_buf; - enumcs = row[0]; - if (enumcs == 14) { - int *L, *a, *b, *red, *green, *blue, *src0, *src1, *src2; - double rl, ol, ra, oa, rb, ob, prec0, prec1, prec2; - double minL, maxL, mina, maxa, minb, maxb; - unsigned int default_type; - unsigned int i, max; - cmsHPROFILE in, out; - cmsHTRANSFORM transform; - cmsUInt16Number RGB[3]; - cmsCIELab Lab; - in = cmsCreateLab4Profile(NULL); - out = cmsCreate_sRGBProfile(); - transform = cmsCreateTransform(in, TYPE_Lab_DBL, out, TYPE_RGB_16, - INTENT_PERCEPTUAL, 0); - cmsCloseProfile(in); - cmsCloseProfile(out); - if (!transform) { - return; - } - prec0 = (double)image->comps[0].prec; - prec1 = (double)image->comps[1].prec; - prec2 = (double)image->comps[2].prec; - default_type = row[1]; - if (default_type == 0x44454600) { - rl = 100; - ra = 170; - rb = 200; - ol = 0; - oa = pow(2, prec1 - 1); - ob = pow(2, prec2 - 2) + pow(2, prec2 - 3); - } else { - rl = row[2]; - ra = row[4]; - rb = row[6]; - ol = row[3]; - oa = row[5]; - ob = row[7]; - } - L = src0 = image->comps[0].data; - a = src1 = image->comps[1].data; - b = src2 = image->comps[2].data; - max = image->comps[0].w * image->comps[0].h; - red = FX_Alloc(int, max); - image->comps[0].data = red; - green = FX_Alloc(int, max); - image->comps[1].data = green; - blue = FX_Alloc(int, max); - image->comps[2].data = blue; - minL = -(rl * ol) / (pow(2, prec0) - 1); - maxL = minL + rl; - mina = -(ra * oa) / (pow(2, prec1) - 1); - maxa = mina + ra; - minb = -(rb * ob) / (pow(2, prec2) - 1); - maxb = minb + rb; - for (i = 0; i < max; ++i) { - Lab.L = minL + (double)(*L) * (maxL - minL) / (pow(2, prec0) - 1); - ++L; - Lab.a = mina + (double)(*a) * (maxa - mina) / (pow(2, prec1) - 1); - ++a; - Lab.b = minb + (double)(*b) * (maxb - minb) / (pow(2, prec2) - 1); - ++b; - cmsDoTransform(transform, &Lab, RGB, 1); - *red++ = RGB[0]; - *green++ = RGB[1]; - *blue++ = RGB[2]; - } - cmsDeleteTransform(transform); - FX_Free(src0); - FX_Free(src1); - FX_Free(src2); - image->color_space = OPJ_CLRSPC_SRGB; - image->comps[0].prec = 16; - image->comps[1].prec = 16; - image->comps[2].prec = 16; - return; - } -} -class CJPX_Decoder { - public: - explicit CJPX_Decoder(CPDF_ColorSpace* cs); - ~CJPX_Decoder(); - FX_BOOL Init(const unsigned char* src_data, FX_DWORD src_size); - void GetInfo(FX_DWORD* width, FX_DWORD* height, FX_DWORD* components); - bool Decode(uint8_t* dest_buf, - int pitch, - const std::vector<uint8_t>& offsets); - - private: - const uint8_t* m_SrcData; - FX_DWORD m_SrcSize; - opj_image_t* image; - opj_codec_t* l_codec; - opj_stream_t* l_stream; - const CPDF_ColorSpace* const m_ColorSpace; -}; - -CJPX_Decoder::CJPX_Decoder(CPDF_ColorSpace* cs) - : image(nullptr), l_codec(nullptr), l_stream(nullptr), m_ColorSpace(cs) {} - -CJPX_Decoder::~CJPX_Decoder() { - if (l_codec) { - opj_destroy_codec(l_codec); - } - if (l_stream) { - opj_stream_destroy(l_stream); - } - if (image) { - opj_image_destroy(image); - } -} - -FX_BOOL CJPX_Decoder::Init(const unsigned char* src_data, FX_DWORD src_size) { - static const unsigned char szJP2Header[] = { - 0x00, 0x00, 0x00, 0x0c, 0x6a, 0x50, 0x20, 0x20, 0x0d, 0x0a, 0x87, 0x0a}; - if (!src_data || src_size < sizeof(szJP2Header)) - return FALSE; - - image = NULL; - m_SrcData = src_data; - m_SrcSize = src_size; - DecodeData srcData(const_cast<unsigned char*>(src_data), src_size); - l_stream = fx_opj_stream_create_memory_stream(&srcData, - OPJ_J2K_STREAM_CHUNK_SIZE, 1); - if (!l_stream) { - return FALSE; - } - opj_dparameters_t parameters; - opj_set_default_decoder_parameters(¶meters); - parameters.decod_format = 0; - parameters.cod_format = 3; - if (FXSYS_memcmp(m_SrcData, szJP2Header, sizeof(szJP2Header)) == 0) { - l_codec = opj_create_decompress(OPJ_CODEC_JP2); - parameters.decod_format = 1; - } else { - l_codec = opj_create_decompress(OPJ_CODEC_J2K); - } - if (!l_codec) { - return FALSE; - } - if (m_ColorSpace && m_ColorSpace->GetFamily() == PDFCS_INDEXED) - parameters.flags |= OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG; - opj_set_info_handler(l_codec, fx_info_callback, 00); - opj_set_warning_handler(l_codec, fx_warning_callback, 00); - opj_set_error_handler(l_codec, fx_error_callback, 00); - if (!opj_setup_decoder(l_codec, ¶meters)) { - return FALSE; - } - if (!opj_read_header(l_stream, l_codec, &image)) { - image = NULL; - return FALSE; - } - image->pdfium_use_colorspace = !!m_ColorSpace; - - if (!parameters.nb_tile_to_decode) { - if (!opj_set_decode_area(l_codec, image, parameters.DA_x0, parameters.DA_y0, - parameters.DA_x1, parameters.DA_y1)) { - opj_image_destroy(image); - image = NULL; - return FALSE; - } - if (!(opj_decode(l_codec, l_stream, image) && - opj_end_decompress(l_codec, l_stream))) { - opj_image_destroy(image); - image = NULL; - return FALSE; - } - } else { - if (!opj_get_decoded_tile(l_codec, l_stream, image, - parameters.tile_index)) { - return FALSE; - } - } - opj_stream_destroy(l_stream); - l_stream = NULL; - if (image->color_space != OPJ_CLRSPC_SYCC && image->numcomps == 3 && - image->comps[0].dx == image->comps[0].dy && image->comps[1].dx != 1) { - image->color_space = OPJ_CLRSPC_SYCC; - } else if (image->numcomps <= 2) { - image->color_space = OPJ_CLRSPC_GRAY; - } - if (image->color_space == OPJ_CLRSPC_SYCC) { - color_sycc_to_rgb(image); - } - if (image->icc_profile_buf) { - FX_Free(image->icc_profile_buf); - image->icc_profile_buf = NULL; - image->icc_profile_len = 0; - } - if (!image) { - return FALSE; - } - return TRUE; -} - -void CJPX_Decoder::GetInfo(FX_DWORD* width, - FX_DWORD* height, - FX_DWORD* components) { - *width = (FX_DWORD)image->x1; - *height = (FX_DWORD)image->y1; - *components = (FX_DWORD)image->numcomps; -} - -bool CJPX_Decoder::Decode(uint8_t* dest_buf, - int pitch, - const std::vector<uint8_t>& offsets) { - if (image->comps[0].w != image->x1 || image->comps[0].h != image->y1) - return false; - - if (pitch<(int)(image->comps[0].w * 8 * image->numcomps + 31)>> 5 << 2) - return false; - - FXSYS_memset(dest_buf, 0xff, image->y1 * pitch); - std::vector<uint8_t*> channel_bufs(image->numcomps); - std::vector<int> adjust_comps(image->numcomps); - for (uint32_t i = 0; i < image->numcomps; i++) { - channel_bufs[i] = dest_buf + offsets[i]; - adjust_comps[i] = image->comps[i].prec - 8; - if (i > 0) { - if (image->comps[i].dx != image->comps[i - 1].dx || - image->comps[i].dy != image->comps[i - 1].dy || - image->comps[i].prec != image->comps[i - 1].prec) { - return false; - } - } - } - int width = image->comps[0].w; - int height = image->comps[0].h; - for (uint32_t channel = 0; channel < image->numcomps; ++channel) { - uint8_t* pChannel = channel_bufs[channel]; - if (adjust_comps[channel] < 0) { - for (int row = 0; row < height; ++row) { - uint8_t* pScanline = pChannel + row * pitch; - for (int col = 0; col < width; ++col) { - uint8_t* pPixel = pScanline + col * image->numcomps; - int src = image->comps[channel].data[row * width + col]; - src += image->comps[channel].sgnd - ? 1 << (image->comps[channel].prec - 1) - : 0; - if (adjust_comps[channel] > 0) { - *pPixel = 0; - } else { - *pPixel = (uint8_t)(src << -adjust_comps[channel]); - } - } - } - } else { - for (int row = 0; row < height; ++row) { - uint8_t* pScanline = pChannel + row * pitch; - for (int col = 0; col < width; ++col) { - uint8_t* pPixel = pScanline + col * image->numcomps; - if (!image->comps[channel].data) { - continue; - } - int src = image->comps[channel].data[row * width + col]; - src += image->comps[channel].sgnd - ? 1 << (image->comps[channel].prec - 1) - : 0; - if (adjust_comps[channel] - 1 < 0) { - *pPixel = (uint8_t)((src >> adjust_comps[channel])); - } else { - int tmpPixel = (src >> adjust_comps[channel]) + - ((src >> (adjust_comps[channel] - 1)) % 2); - if (tmpPixel > 255) { - tmpPixel = 255; - } else if (tmpPixel < 0) { - tmpPixel = 0; - } - *pPixel = (uint8_t)tmpPixel; - } - } - } - } - } - return true; -} - -CCodec_JpxModule::CCodec_JpxModule() {} -CCodec_JpxModule::~CCodec_JpxModule() { -} - -CJPX_Decoder* CCodec_JpxModule::CreateDecoder(const uint8_t* src_buf, - FX_DWORD src_size, - CPDF_ColorSpace* cs) { - std::unique_ptr<CJPX_Decoder> decoder(new CJPX_Decoder(cs)); - return decoder->Init(src_buf, src_size) ? decoder.release() : nullptr; -} - -void CCodec_JpxModule::GetImageInfo(CJPX_Decoder* pDecoder, - FX_DWORD* width, - FX_DWORD* height, - FX_DWORD* components) { - pDecoder->GetInfo(width, height, components); -} - -bool CCodec_JpxModule::Decode(CJPX_Decoder* pDecoder, - uint8_t* dest_data, - int pitch, - const std::vector<uint8_t>& offsets) { - return pDecoder->Decode(dest_data, pitch, offsets); -} - -void CCodec_JpxModule::DestroyDecoder(CJPX_Decoder* pDecoder) { - delete pDecoder; -} |