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-rw-r--r--core/fxcodec/codec/cjpx_decoder.h11
-rw-r--r--core/fxcodec/codec/fx_codec_jpx_opj.cpp201
2 files changed, 113 insertions, 99 deletions
diff --git a/core/fxcodec/codec/cjpx_decoder.h b/core/fxcodec/codec/cjpx_decoder.h
index a62b41aafc..9e6c79cafc 100644
--- a/core/fxcodec/codec/cjpx_decoder.h
+++ b/core/fxcodec/codec/cjpx_decoder.h
@@ -7,8 +7,10 @@
#ifndef CORE_FXCODEC_CODEC_CJPX_DECODER_H_
#define CORE_FXCODEC_CODEC_CJPX_DECODER_H_
+#include <memory>
#include <vector>
+#include "core/fxcodec/codec/codec_int.h"
#include "core/fxcrt/cfx_unowned_ptr.h"
#include "third_party/libopenjpeg20/openjpeg.h"
@@ -28,9 +30,12 @@ class CJPX_Decoder {
private:
const uint8_t* m_SrcData;
uint32_t m_SrcSize;
- opj_image_t* image;
- opj_codec_t* l_codec;
- opj_stream_t* l_stream;
+ // TODO(rharrison): Convert these to unowned ptrs, if possible.
+ opj_image_t* m_Image;
+ opj_codec_t* m_Codec;
+ std::unique_ptr<DecodeData> m_DecodeData;
+ opj_stream_t* m_Stream;
+ opj_dparameters_t m_Parameters;
CFX_UnownedPtr<const CPDF_ColorSpace> const m_ColorSpace;
};
diff --git a/core/fxcodec/codec/fx_codec_jpx_opj.cpp b/core/fxcodec/codec/fx_codec_jpx_opj.cpp
index 00e93fb3d5..007de0bdf3 100644
--- a/core/fxcodec/codec/fx_codec_jpx_opj.cpp
+++ b/core/fxcodec/codec/fx_codec_jpx_opj.cpp
@@ -12,7 +12,6 @@
#include "core/fpdfapi/page/cpdf_colorspace.h"
#include "core/fxcodec/codec/cjpx_decoder.h"
-#include "core/fxcodec/codec/codec_int.h"
#include "core/fxcodec/fx_codec.h"
#include "core/fxcrt/fx_memory.h"
#include "core/fxcrt/fx_safe_types.h"
@@ -431,15 +430,19 @@ void sycc420_to_rgb(opj_image_t* img) {
}
CJPX_Decoder::CJPX_Decoder(CPDF_ColorSpace* cs)
- : image(nullptr), l_codec(nullptr), l_stream(nullptr), m_ColorSpace(cs) {}
+ : m_Image(nullptr),
+ m_Codec(nullptr),
+ m_DecodeData(nullptr),
+ m_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);
+ if (m_Codec)
+ opj_destroy_codec(m_Codec);
+ if (m_Stream)
+ opj_stream_destroy(m_Stream);
+ if (m_Image)
+ opj_image_destroy(m_Image);
}
bool CJPX_Decoder::Init(const unsigned char* src_data, uint32_t src_size) {
@@ -448,134 +451,140 @@ bool CJPX_Decoder::Init(const unsigned char* src_data, uint32_t src_size) {
if (!src_data || src_size < sizeof(szJP2Header))
return false;
- image = nullptr;
+ m_Image = nullptr;
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)
+ m_DecodeData = pdfium::MakeUnique<DecodeData>(
+ const_cast<unsigned char*>(src_data), src_size);
+ m_Stream = fx_opj_stream_create_memory_stream(
+ m_DecodeData.get(), static_cast<unsigned int>(OPJ_J2K_STREAM_CHUNK_SIZE),
+ 1);
+ if (!m_Stream)
return false;
- opj_dparameters_t parameters;
- opj_set_default_decoder_parameters(&parameters);
- parameters.decod_format = 0;
- parameters.cod_format = 3;
+ opj_set_default_decoder_parameters(&m_Parameters);
+ m_Parameters.decod_format = 0;
+ m_Parameters.cod_format = 3;
if (memcmp(m_SrcData, szJP2Header, sizeof(szJP2Header)) == 0) {
- l_codec = opj_create_decompress(OPJ_CODEC_JP2);
- parameters.decod_format = 1;
+ m_Codec = opj_create_decompress(OPJ_CODEC_JP2);
+ m_Parameters.decod_format = 1;
} else {
- l_codec = opj_create_decompress(OPJ_CODEC_J2K);
+ m_Codec = opj_create_decompress(OPJ_CODEC_J2K);
}
- if (!l_codec)
+ if (!m_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_ignore_callback, nullptr);
- opj_set_warning_handler(l_codec, fx_ignore_callback, nullptr);
- opj_set_error_handler(l_codec, fx_ignore_callback, nullptr);
- if (!opj_setup_decoder(l_codec, &parameters))
+ m_Parameters.flags |= OPJ_DPARAMETERS_IGNORE_PCLR_CMAP_CDEF_FLAG;
+ opj_set_info_handler(m_Codec, fx_ignore_callback, nullptr);
+ opj_set_warning_handler(m_Codec, fx_ignore_callback, nullptr);
+ opj_set_error_handler(m_Codec, fx_ignore_callback, nullptr);
+ if (!opj_setup_decoder(m_Codec, &m_Parameters))
return false;
- if (!opj_read_header(l_stream, l_codec, &image)) {
- image = nullptr;
+ if (!opj_read_header(m_Stream, m_Codec, &m_Image)) {
+ m_Image = nullptr;
return false;
}
- image->pdfium_use_colorspace = !!m_ColorSpace;
+ m_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 = nullptr;
- return false;
- }
- if (!(opj_decode(l_codec, l_stream, image) &&
- opj_end_decompress(l_codec, l_stream))) {
- opj_image_destroy(image);
- image = nullptr;
- 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 = nullptr;
- 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) {
- // TODO(palmer): Using |opj_free| here resolves the crash described in
- // https://crbug.com/737033, but ultimately we need to harmonize the
- // memory allocation strategy across OpenJPEG and its PDFium callers.
- opj_free(image->icc_profile_buf);
- image->icc_profile_buf = nullptr;
- image->icc_profile_len = 0;
- }
return true;
}
void CJPX_Decoder::GetInfo(uint32_t* width,
uint32_t* height,
uint32_t* components) {
- *width = (uint32_t)image->x1;
- *height = (uint32_t)image->y1;
- *components = (uint32_t)image->numcomps;
+ *width = m_Image->x1;
+ *height = m_Image->y1;
+ *components = m_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)
+ if (m_Image->comps[0].w != m_Image->x1 || m_Image->comps[0].h != m_Image->y1)
return false;
- if (pitch<(int)(image->comps[0].w * 8 * image->numcomps + 31)>> 5 << 2)
+ if (pitch<static_cast<int>(m_Image->comps[0].w * 8 * m_Image->numcomps + 31)>>
+ 5 << 2)
return false;
- 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++) {
+ if (!m_Parameters.nb_tile_to_decode) {
+ if (!opj_set_decode_area(m_Codec, m_Image, m_Parameters.DA_x0,
+ m_Parameters.DA_y0, m_Parameters.DA_x1,
+ m_Parameters.DA_y1)) {
+ opj_image_destroy(m_Image);
+ m_Image = nullptr;
+ return false;
+ }
+ if (!(opj_decode(m_Codec, m_Stream, m_Image) &&
+ opj_end_decompress(m_Codec, m_Stream))) {
+ opj_image_destroy(m_Image);
+ m_Image = nullptr;
+ return false;
+ }
+ } else {
+ if (!opj_get_decoded_tile(m_Codec, m_Stream, m_Image,
+ m_Parameters.tile_index)) {
+ return false;
+ }
+ }
+
+ opj_stream_destroy(m_Stream);
+ m_Stream = nullptr;
+ if (m_Image->color_space != OPJ_CLRSPC_SYCC && m_Image->numcomps == 3 &&
+ m_Image->comps[0].dx == m_Image->comps[0].dy &&
+ m_Image->comps[1].dx != 1) {
+ m_Image->color_space = OPJ_CLRSPC_SYCC;
+ } else if (m_Image->numcomps <= 2) {
+ m_Image->color_space = OPJ_CLRSPC_GRAY;
+ }
+ if (m_Image->color_space == OPJ_CLRSPC_SYCC)
+ color_sycc_to_rgb(m_Image);
+
+ if (m_Image->icc_profile_buf) {
+ // TODO(palmer): Using |opj_free| here resolves the crash described in
+ // https://crbug.com/737033, but ultimately we need to harmonize the
+ // memory allocation strategy across OpenJPEG and its PDFium callers.
+ opj_free(m_Image->icc_profile_buf);
+ m_Image->icc_profile_buf = nullptr;
+ m_Image->icc_profile_len = 0;
+ }
+
+ memset(dest_buf, 0xff, m_Image->y1 * pitch);
+ std::vector<uint8_t*> channel_bufs(m_Image->numcomps);
+ std::vector<int> adjust_comps(m_Image->numcomps);
+ for (uint32_t i = 0; i < m_Image->numcomps; i++) {
channel_bufs[i] = dest_buf + offsets[i];
- adjust_comps[i] = image->comps[i].prec - 8;
+ adjust_comps[i] = m_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) {
+ if (m_Image->comps[i].dx != m_Image->comps[i - 1].dx ||
+ m_Image->comps[i].dy != m_Image->comps[i - 1].dy ||
+ m_Image->comps[i].prec != m_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) {
+ int width = m_Image->comps[0].w;
+ int height = m_Image->comps[0].h;
+ for (uint32_t channel = 0; channel < m_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;
- if (!image->comps[channel].data)
+ uint8_t* pPixel = pScanline + col * m_Image->numcomps;
+ if (!m_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)
+ int src = m_Image->comps[channel].data[row * width + col];
+ src += m_Image->comps[channel].sgnd
+ ? 1 << (m_Image->comps[channel].prec - 1)
: 0;
if (adjust_comps[channel] > 0) {
*pPixel = 0;
} else {
- *pPixel = (uint8_t)(src << -adjust_comps[channel]);
+ *pPixel = static_cast<uint8_t>(src << -adjust_comps[channel]);
}
}
}
@@ -583,16 +592,16 @@ bool CJPX_Decoder::Decode(uint8_t* dest_buf,
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)
+ uint8_t* pPixel = pScanline + col * m_Image->numcomps;
+ if (!m_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)
+ int src = m_Image->comps[channel].data[row * width + col];
+ src += m_Image->comps[channel].sgnd
+ ? 1 << (m_Image->comps[channel].prec - 1)
: 0;
if (adjust_comps[channel] - 1 < 0) {
- *pPixel = (uint8_t)((src >> adjust_comps[channel]));
+ *pPixel = static_cast<uint8_t>((src >> adjust_comps[channel]));
} else {
int tmpPixel = (src >> adjust_comps[channel]) +
((src >> (adjust_comps[channel] - 1)) % 2);
@@ -601,7 +610,7 @@ bool CJPX_Decoder::Decode(uint8_t* dest_buf,
} else if (tmpPixel < 0) {
tmpPixel = 0;
}
- *pPixel = (uint8_t)tmpPixel;
+ *pPixel = static_cast<uint8_t>(tmpPixel);
}
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-04 01:58:06 +0000