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-rw-r--r--core/fxcodec/codec/ccodec_basicmodule.h8
-rw-r--r--core/fxcodec/codec/ccodec_faxmodule.h9
-rw-r--r--core/fxcodec/codec/ccodec_jpegmodule.h6
-rw-r--r--core/fxcodec/codec/fx_codec.cpp14
-rw-r--r--core/fxcodec/codec/fx_codec_fax.cpp212
-rw-r--r--core/fxcodec/codec/fx_codec_jpeg.cpp136
6 files changed, 362 insertions, 23 deletions
diff --git a/core/fxcodec/codec/ccodec_basicmodule.h b/core/fxcodec/codec/ccodec_basicmodule.h
index 425b5d7229..015f41a4a4 100644
--- a/core/fxcodec/codec/ccodec_basicmodule.h
+++ b/core/fxcodec/codec/ccodec_basicmodule.h
@@ -22,6 +22,14 @@ class CCodec_BasicModule {
int height,
int nComps,
int bpc);
+ bool RunLengthEncode(const uint8_t* src_buf,
+ uint32_t src_size,
+ uint8_t** dest_buf,
+ uint32_t* dest_size);
+ bool A85Encode(const uint8_t* src_buf,
+ uint32_t src_size,
+ uint8_t** dest_buf,
+ uint32_t* dest_size);
};
#endif // CORE_FXCODEC_CODEC_CCODEC_BASICMODULE_H_
diff --git a/core/fxcodec/codec/ccodec_faxmodule.h b/core/fxcodec/codec/ccodec_faxmodule.h
index ce9e97bbe9..92e45e6719 100644
--- a/core/fxcodec/codec/ccodec_faxmodule.h
+++ b/core/fxcodec/codec/ccodec_faxmodule.h
@@ -9,6 +9,7 @@
#include <memory>
+#include "core/fxcrt/fx_memory.h"
#include "core/fxcrt/fx_system.h"
class CCodec_ScanlineDecoder;
@@ -25,6 +26,14 @@ class CCodec_FaxModule {
bool BlackIs1,
int Columns,
int Rows);
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
+ static void FaxEncode(const uint8_t* src_buf,
+ int width,
+ int height,
+ int pitch,
+ std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
+ uint32_t* dest_size);
+#endif
};
#endif // CORE_FXCODEC_CODEC_CCODEC_FAXMODULE_H_
diff --git a/core/fxcodec/codec/ccodec_jpegmodule.h b/core/fxcodec/codec/ccodec_jpegmodule.h
index b2ae731bb4..bad6fa6a94 100644
--- a/core/fxcodec/codec/ccodec_jpegmodule.h
+++ b/core/fxcodec/codec/ccodec_jpegmodule.h
@@ -58,6 +58,12 @@ class CCodec_JpegModule {
bool StartScanline(FXJPEG_Context* pContext, int down_scale);
bool ReadScanline(FXJPEG_Context* pContext, uint8_t* dest_buf);
uint32_t GetAvailInput(FXJPEG_Context* pContext, uint8_t** avail_buf_ptr);
+
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
+ static bool JpegEncode(const CFX_DIBSource* pSource,
+ uint8_t** dest_buf,
+ FX_STRSIZE* dest_size);
+#endif
};
#endif // CORE_FXCODEC_CODEC_CCODEC_JPEGMODULE_H_
diff --git a/core/fxcodec/codec/fx_codec.cpp b/core/fxcodec/codec/fx_codec.cpp
index aa2ecef345..6b6c723388 100644
--- a/core/fxcodec/codec/fx_codec.cpp
+++ b/core/fxcodec/codec/fx_codec.cpp
@@ -97,6 +97,20 @@ uint8_t* CCodec_ScanlineDecoder::ReadNextLine() {
return v_GetNextLine();
}
+bool CCodec_BasicModule::RunLengthEncode(const uint8_t* src_buf,
+ uint32_t src_size,
+ uint8_t** dest_buf,
+ uint32_t* dest_size) {
+ return false;
+}
+
+bool CCodec_BasicModule::A85Encode(const uint8_t* src_buf,
+ uint32_t src_size,
+ uint8_t** dest_buf,
+ uint32_t* dest_size) {
+ return false;
+}
+
#ifdef PDF_ENABLE_XFA
CFX_DIBAttribute::CFX_DIBAttribute()
: m_nXDPI(-1),
diff --git a/core/fxcodec/codec/fx_codec_fax.cpp b/core/fxcodec/codec/fx_codec_fax.cpp
index 62ad38e19f..8a9c3efbc7 100644
--- a/core/fxcodec/codec/fx_codec_fax.cpp
+++ b/core/fxcodec/codec/fx_codec_fax.cpp
@@ -10,6 +10,7 @@
#include "core/fxcodec/codec/codec_int.h"
#include "core/fxcodec/fx_codec.h"
+#include "core/fxcrt/fx_memory.h"
#include "third_party/base/ptr_util.h"
namespace {
@@ -44,10 +45,7 @@ const uint8_t ZeroLeadPos[256] = {
// Limit of image dimension, an arbitrary large number.
const int kMaxImageDimension = 0x01FFFF;
-int FindBit(const std::vector<uint8_t>& data_buf,
- int max_pos,
- int start_pos,
- int bit) {
+int FindBit(const uint8_t* data_buf, int max_pos, int start_pos, int bit) {
ASSERT(start_pos >= 0);
if (start_pos >= max_pos)
return max_pos;
@@ -88,20 +86,20 @@ void FaxG4FindB1B2(const std::vector<uint8_t>& ref_buf,
int* b2) {
uint8_t first_bit =
(a0 < 0) ? 1 : ((ref_buf[a0 / 8] & (1 << (7 - a0 % 8))) != 0);
- *b1 = FindBit(ref_buf, columns, a0 + 1, !first_bit);
+ *b1 = FindBit(ref_buf.data(), columns, a0 + 1, !first_bit);
if (*b1 >= columns) {
*b1 = *b2 = columns;
return;
}
if (first_bit == !a0color) {
- *b1 = FindBit(ref_buf, columns, *b1 + 1, first_bit);
+ *b1 = FindBit(ref_buf.data(), columns, *b1 + 1, first_bit);
first_bit = !first_bit;
}
if (*b1 >= columns) {
*b1 = *b2 = columns;
return;
}
- *b2 = FindBit(ref_buf, columns, *b1 + 1, first_bit);
+ *b2 = FindBit(ref_buf.data(), columns, *b1 + 1, first_bit);
}
void FaxFillBits(uint8_t* dest_buf, int columns, int startpos, int endpos) {
@@ -609,3 +607,203 @@ std::unique_ptr<CCodec_ScanlineDecoder> CCodec_FaxModule::CreateDecoder(
src_buf, src_size, actual_width, actual_height, pitch, K, EndOfLine,
EncodedByteAlign, BlackIs1);
}
+
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
+namespace {
+const uint8_t BlackRunTerminator[128] = {
+ 0x37, 10, 0x02, 3, 0x03, 2, 0x02, 2, 0x03, 3, 0x03, 4, 0x02, 4,
+ 0x03, 5, 0x05, 6, 0x04, 6, 0x04, 7, 0x05, 7, 0x07, 7, 0x04, 8,
+ 0x07, 8, 0x18, 9, 0x17, 10, 0x18, 10, 0x08, 10, 0x67, 11, 0x68, 11,
+ 0x6c, 11, 0x37, 11, 0x28, 11, 0x17, 11, 0x18, 11, 0xca, 12, 0xcb, 12,
+ 0xcc, 12, 0xcd, 12, 0x68, 12, 0x69, 12, 0x6a, 12, 0x6b, 12, 0xd2, 12,
+ 0xd3, 12, 0xd4, 12, 0xd5, 12, 0xd6, 12, 0xd7, 12, 0x6c, 12, 0x6d, 12,
+ 0xda, 12, 0xdb, 12, 0x54, 12, 0x55, 12, 0x56, 12, 0x57, 12, 0x64, 12,
+ 0x65, 12, 0x52, 12, 0x53, 12, 0x24, 12, 0x37, 12, 0x38, 12, 0x27, 12,
+ 0x28, 12, 0x58, 12, 0x59, 12, 0x2b, 12, 0x2c, 12, 0x5a, 12, 0x66, 12,
+ 0x67, 12,
+};
+
+const uint8_t BlackRunMarkup[80] = {
+ 0x0f, 10, 0xc8, 12, 0xc9, 12, 0x5b, 12, 0x33, 12, 0x34, 12, 0x35, 12,
+ 0x6c, 13, 0x6d, 13, 0x4a, 13, 0x4b, 13, 0x4c, 13, 0x4d, 13, 0x72, 13,
+ 0x73, 13, 0x74, 13, 0x75, 13, 0x76, 13, 0x77, 13, 0x52, 13, 0x53, 13,
+ 0x54, 13, 0x55, 13, 0x5a, 13, 0x5b, 13, 0x64, 13, 0x65, 13, 0x08, 11,
+ 0x0c, 11, 0x0d, 11, 0x12, 12, 0x13, 12, 0x14, 12, 0x15, 12, 0x16, 12,
+ 0x17, 12, 0x1c, 12, 0x1d, 12, 0x1e, 12, 0x1f, 12,
+};
+
+const uint8_t WhiteRunTerminator[128] = {
+ 0x35, 8, 0x07, 6, 0x07, 4, 0x08, 4, 0x0B, 4, 0x0C, 4, 0x0E, 4, 0x0F, 4,
+ 0x13, 5, 0x14, 5, 0x07, 5, 0x08, 5, 0x08, 6, 0x03, 6, 0x34, 6, 0x35, 6,
+ 0x2a, 6, 0x2B, 6, 0x27, 7, 0x0c, 7, 0x08, 7, 0x17, 7, 0x03, 7, 0x04, 7,
+ 0x28, 7, 0x2B, 7, 0x13, 7, 0x24, 7, 0x18, 7, 0x02, 8, 0x03, 8, 0x1a, 8,
+ 0x1b, 8, 0x12, 8, 0x13, 8, 0x14, 8, 0x15, 8, 0x16, 8, 0x17, 8, 0x28, 8,
+ 0x29, 8, 0x2a, 8, 0x2b, 8, 0x2c, 8, 0x2d, 8, 0x04, 8, 0x05, 8, 0x0a, 8,
+ 0x0b, 8, 0x52, 8, 0x53, 8, 0x54, 8, 0x55, 8, 0x24, 8, 0x25, 8, 0x58, 8,
+ 0x59, 8, 0x5a, 8, 0x5b, 8, 0x4a, 8, 0x4b, 8, 0x32, 8, 0x33, 8, 0x34, 8,
+};
+
+const uint8_t WhiteRunMarkup[80] = {
+ 0x1b, 5, 0x12, 5, 0x17, 6, 0x37, 7, 0x36, 8, 0x37, 8, 0x64, 8,
+ 0x65, 8, 0x68, 8, 0x67, 8, 0xcc, 9, 0xcd, 9, 0xd2, 9, 0xd3, 9,
+ 0xd4, 9, 0xd5, 9, 0xd6, 9, 0xd7, 9, 0xd8, 9, 0xd9, 9, 0xda, 9,
+ 0xdb, 9, 0x98, 9, 0x99, 9, 0x9a, 9, 0x18, 6, 0x9b, 9, 0x08, 11,
+ 0x0c, 11, 0x0d, 11, 0x12, 12, 0x13, 12, 0x14, 12, 0x15, 12, 0x16, 12,
+ 0x17, 12, 0x1c, 12, 0x1d, 12, 0x1e, 12, 0x1f, 12,
+};
+
+void AddBitStream(uint8_t* dest_buf, int* dest_bitpos, int data, int bitlen) {
+ for (int i = bitlen - 1; i >= 0; i--) {
+ if (data & (1 << i)) {
+ dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+ }
+ (*dest_bitpos)++;
+ }
+}
+
+void FaxEncodeRun(uint8_t* dest_buf, int* dest_bitpos, int run, bool bWhite) {
+ while (run >= 2560) {
+ AddBitStream(dest_buf, dest_bitpos, 0x1f, 12);
+ run -= 2560;
+ }
+ if (run >= 64) {
+ int markup = run - run % 64;
+ const uint8_t* p = bWhite ? WhiteRunMarkup : BlackRunMarkup;
+ p += (markup / 64 - 1) * 2;
+ AddBitStream(dest_buf, dest_bitpos, *p, p[1]);
+ }
+ run %= 64;
+ const uint8_t* p = bWhite ? WhiteRunTerminator : BlackRunTerminator;
+ p += run * 2;
+ AddBitStream(dest_buf, dest_bitpos, *p, p[1]);
+}
+
+void FaxEncode2DLine(uint8_t* dest_buf,
+ int* dest_bitpos,
+ const uint8_t* src_buf,
+ const std::vector<uint8_t>& ref_buf,
+ int cols) {
+ int a0 = -1;
+ bool a0color = true;
+ while (1) {
+ int a1 = FindBit(src_buf, cols, a0 + 1, !a0color);
+ int b1;
+ int b2;
+ FaxG4FindB1B2(ref_buf, cols, a0, a0color, &b1, &b2);
+ if (b2 < a1) {
+ *dest_bitpos += 3;
+ dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+ (*dest_bitpos)++;
+ a0 = b2;
+ } else if (a1 - b1 <= 3 && b1 - a1 <= 3) {
+ int delta = a1 - b1;
+ switch (delta) {
+ case 0:
+ dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+ break;
+ case 1:
+ case 2:
+ case 3:
+ *dest_bitpos += delta == 1 ? 1 : delta + 2;
+ dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+ (*dest_bitpos)++;
+ dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+ break;
+ case -1:
+ case -2:
+ case -3:
+ *dest_bitpos += delta == -1 ? 1 : -delta + 2;
+ dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+ (*dest_bitpos)++;
+ break;
+ }
+ (*dest_bitpos)++;
+ a0 = a1;
+ a0color = !a0color;
+ } else {
+ int a2 = FindBit(src_buf, cols, a1 + 1, a0color);
+ (*dest_bitpos)++;
+ (*dest_bitpos)++;
+ dest_buf[*dest_bitpos / 8] |= 1 << (7 - *dest_bitpos % 8);
+ (*dest_bitpos)++;
+ if (a0 < 0) {
+ a0 = 0;
+ }
+ FaxEncodeRun(dest_buf, dest_bitpos, a1 - a0, a0color);
+ FaxEncodeRun(dest_buf, dest_bitpos, a2 - a1, !a0color);
+ a0 = a2;
+ }
+ if (a0 >= cols) {
+ return;
+ }
+ }
+}
+
+class CCodec_FaxEncoder {
+ public:
+ CCodec_FaxEncoder(const uint8_t* src_buf, int width, int height, int pitch);
+ ~CCodec_FaxEncoder();
+ void Encode(std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
+ uint32_t* dest_size);
+
+ private:
+ CFX_BinaryBuf m_DestBuf;
+ std::vector<uint8_t> m_RefLine;
+ uint8_t* m_pLineBuf;
+ const int m_Cols;
+ const int m_Rows;
+ const int m_Pitch;
+ const uint8_t* m_pSrcBuf;
+};
+
+CCodec_FaxEncoder::CCodec_FaxEncoder(const uint8_t* src_buf,
+ int width,
+ int height,
+ int pitch)
+ : m_Cols(width), m_Rows(height), m_Pitch(pitch), m_pSrcBuf(src_buf) {
+ m_RefLine.resize(m_Pitch);
+ FXSYS_memset(m_RefLine.data(), 0xff, m_Pitch);
+ m_pLineBuf = FX_Alloc2D(uint8_t, m_Pitch, 8);
+ m_DestBuf.EstimateSize(0, 10240);
+}
+
+CCodec_FaxEncoder::~CCodec_FaxEncoder() {
+ FX_Free(m_pLineBuf);
+}
+
+void CCodec_FaxEncoder::Encode(
+ std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
+ uint32_t* dest_size) {
+ int dest_bitpos = 0;
+ uint8_t last_byte = 0;
+ for (int i = 0; i < m_Rows; i++) {
+ const uint8_t* scan_line = m_pSrcBuf + i * m_Pitch;
+ FXSYS_memset(m_pLineBuf, 0, m_Pitch * 8);
+ m_pLineBuf[0] = last_byte;
+ FaxEncode2DLine(m_pLineBuf, &dest_bitpos, scan_line, m_RefLine, m_Cols);
+ m_DestBuf.AppendBlock(m_pLineBuf, dest_bitpos / 8);
+ last_byte = m_pLineBuf[dest_bitpos / 8];
+ dest_bitpos %= 8;
+ FXSYS_memcpy(m_RefLine.data(), scan_line, m_Pitch);
+ }
+ if (dest_bitpos) {
+ m_DestBuf.AppendByte(last_byte);
+ }
+ *dest_size = m_DestBuf.GetSize();
+ *dest_buf = m_DestBuf.DetachBuffer();
+}
+
+} // namespace
+
+void CCodec_FaxModule::FaxEncode(
+ const uint8_t* src_buf,
+ int width,
+ int height,
+ int pitch,
+ std::unique_ptr<uint8_t, FxFreeDeleter>* dest_buf,
+ uint32_t* dest_size) {
+ CCodec_FaxEncoder encoder(src_buf, width, height, pitch);
+ encoder.Encode(dest_buf, dest_size);
+}
+
+#endif
diff --git a/core/fxcodec/codec/fx_codec_jpeg.cpp b/core/fxcodec/codec/fx_codec_jpeg.cpp
index fdfdd4faeb..c797605575 100644
--- a/core/fxcodec/codec/fx_codec_jpeg.cpp
+++ b/core/fxcodec/codec/fx_codec_jpeg.cpp
@@ -27,6 +27,7 @@ extern "C" {
}
extern "C" {
+
static void JpegScanSOI(const uint8_t** src_buf, uint32_t* src_size) {
if (*src_size == 0)
return;
@@ -41,16 +42,13 @@ static void JpegScanSOI(const uint8_t** src_buf, uint32_t* src_size) {
offset++;
}
}
-};
-extern "C" {
+
static void _src_do_nothing(struct jpeg_decompress_struct* cinfo) {}
-};
-extern "C" {
+
static void _error_fatal(j_common_ptr cinfo) {
longjmp(*(jmp_buf*)cinfo->client_data, -1);
}
-};
-extern "C" {
+
static void _src_skip_data(struct jpeg_decompress_struct* cinfo, long num) {
if (num > (long)cinfo->src->bytes_in_buffer) {
_error_fatal((j_common_ptr)cinfo);
@@ -58,25 +56,28 @@ static void _src_skip_data(struct jpeg_decompress_struct* cinfo, long num) {
cinfo->src->next_input_byte += num;
cinfo->src->bytes_in_buffer -= num;
}
-};
-extern "C" {
+
static boolean _src_fill_buffer(j_decompress_ptr cinfo) {
return 0;
}
-};
-extern "C" {
+
static boolean _src_resync(j_decompress_ptr cinfo, int desired) {
return 0;
}
-};
-extern "C" {
+
static void _error_do_nothing(j_common_ptr cinfo) {}
-};
-extern "C" {
+
static void _error_do_nothing1(j_common_ptr cinfo, int) {}
-};
-extern "C" {
+
static void _error_do_nothing2(j_common_ptr cinfo, char*) {}
+
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
+static void _dest_do_nothing(j_compress_ptr cinfo) {}
+
+static boolean _dest_empty(j_compress_ptr cinfo) {
+ return false;
+}
+#endif
};
#define JPEG_MARKER_ICC (JPEG_APP0 + 2)
@@ -480,3 +481,106 @@ uint32_t CCodec_JpegModule::GetAvailInput(FXJPEG_Context* ctx,
}
return (uint32_t)ctx->m_SrcMgr.bytes_in_buffer;
}
+
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_DESKTOP_
+#define JPEG_BLOCK_SIZE 1048576
+bool CCodec_JpegModule::JpegEncode(const CFX_DIBSource* pSource,
+ uint8_t** dest_buf,
+ FX_STRSIZE* dest_size) {
+ struct jpeg_error_mgr jerr;
+ jerr.error_exit = _error_do_nothing;
+ jerr.emit_message = _error_do_nothing1;
+ jerr.output_message = _error_do_nothing;
+ jerr.format_message = _error_do_nothing2;
+ jerr.reset_error_mgr = _error_do_nothing;
+
+ struct jpeg_compress_struct cinfo;
+ memset(&cinfo, 0, sizeof(cinfo));
+ cinfo.err = &jerr;
+ jpeg_create_compress(&cinfo);
+ int Bpp = pSource->GetBPP() / 8;
+ uint32_t nComponents = Bpp >= 3 ? (pSource->IsCmykImage() ? 4 : 3) : 1;
+ uint32_t pitch = pSource->GetPitch();
+ uint32_t width = pdfium::base::checked_cast<uint32_t>(pSource->GetWidth());
+ uint32_t height = pdfium::base::checked_cast<uint32_t>(pSource->GetHeight());
+ FX_SAFE_UINT32 safe_buf_len = width;
+ safe_buf_len *= height;
+ safe_buf_len *= nComponents;
+ safe_buf_len += 1024;
+ if (!safe_buf_len.IsValid())
+ return false;
+
+ uint32_t dest_buf_length = safe_buf_len.ValueOrDie();
+ *dest_buf = FX_TryAlloc(uint8_t, dest_buf_length);
+ const int MIN_TRY_BUF_LEN = 1024;
+ while (!(*dest_buf) && dest_buf_length > MIN_TRY_BUF_LEN) {
+ dest_buf_length >>= 1;
+ *dest_buf = FX_TryAlloc(uint8_t, dest_buf_length);
+ }
+ if (!(*dest_buf))
+ return false;
+
+ struct jpeg_destination_mgr dest;
+ dest.init_destination = _dest_do_nothing;
+ dest.term_destination = _dest_do_nothing;
+ dest.empty_output_buffer = _dest_empty;
+ dest.next_output_byte = *dest_buf;
+ dest.free_in_buffer = dest_buf_length;
+ cinfo.dest = &dest;
+ cinfo.image_width = width;
+ cinfo.image_height = height;
+ cinfo.input_components = nComponents;
+ if (nComponents == 1) {
+ cinfo.in_color_space = JCS_GRAYSCALE;
+ } else if (nComponents == 3) {
+ cinfo.in_color_space = JCS_RGB;
+ } else {
+ cinfo.in_color_space = JCS_CMYK;
+ }
+ uint8_t* line_buf = nullptr;
+ if (nComponents > 1)
+ line_buf = FX_Alloc2D(uint8_t, width, nComponents);
+
+ jpeg_set_defaults(&cinfo);
+ jpeg_start_compress(&cinfo, TRUE);
+ JSAMPROW row_pointer[1];
+ JDIMENSION row;
+ while (cinfo.next_scanline < cinfo.image_height) {
+ const uint8_t* src_scan = pSource->GetScanline(cinfo.next_scanline);
+ if (nComponents > 1) {
+ uint8_t* dest_scan = line_buf;
+ if (nComponents == 3) {
+ for (uint32_t i = 0; i < width; i++) {
+ dest_scan[0] = src_scan[2];
+ dest_scan[1] = src_scan[1];
+ dest_scan[2] = src_scan[0];
+ dest_scan += 3;
+ src_scan += Bpp;
+ }
+ } else {
+ for (uint32_t i = 0; i < pitch; i++) {
+ *dest_scan++ = ~*src_scan++;
+ }
+ }
+ row_pointer[0] = line_buf;
+ } else {
+ row_pointer[0] = (uint8_t*)src_scan;
+ }
+ row = cinfo.next_scanline;
+ jpeg_write_scanlines(&cinfo, row_pointer, 1);
+ if (cinfo.next_scanline == row) {
+ *dest_buf =
+ FX_Realloc(uint8_t, *dest_buf, dest_buf_length + JPEG_BLOCK_SIZE);
+ dest.next_output_byte = *dest_buf + dest_buf_length - dest.free_in_buffer;
+ dest_buf_length += JPEG_BLOCK_SIZE;
+ dest.free_in_buffer += JPEG_BLOCK_SIZE;
+ }
+ }
+ jpeg_finish_compress(&cinfo);
+ jpeg_destroy_compress(&cinfo);
+ FX_Free(line_buf);
+ *dest_size = dest_buf_length - (FX_STRSIZE)dest.free_in_buffer;
+
+ return true;
+}
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 12:26:23 +0000