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-rw-r--r--xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp97
-rw-r--r--xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h22
2 files changed, 66 insertions, 53 deletions
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp b/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp
index f915e58aae..1c85aa16d7 100644
--- a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp
+++ b/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.cpp
@@ -20,30 +20,63 @@
* limitations under the License.
*/
-#include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h"
#include "xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h"
+
+#include <limits>
+
+#include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h"
#include "xfa/fxbarcode/utils.h"
-const uint16_t CBC_QRCoderFormatInformation::FORMAT_INFO_MASK_QR = 0X5412;
-const uint16_t CBC_QRCoderFormatInformation::FORMAT_INFO_DECODE_LOOKUP[32][2] =
- {
- {0x5412, 0x00}, {0x5125, 0x01}, {0x5E7C, 0x02}, {0x5B4B, 0x03},
- {0x45F9, 0x04}, {0x40CE, 0x05}, {0x4F97, 0x06}, {0x4AA0, 0x07},
- {0x77C4, 0x08}, {0x72F3, 0x09}, {0x7DAA, 0x0A}, {0x789D, 0x0B},
- {0x662F, 0x0C}, {0x6318, 0x0D}, {0x6C41, 0x0E}, {0x6976, 0x0F},
- {0x1689, 0x10}, {0x13BE, 0x11}, {0x1CE7, 0x12}, {0x19D0, 0x13},
- {0x0762, 0x14}, {0x0255, 0x15}, {0x0D0C, 0x16}, {0x083B, 0x17},
- {0x355F, 0x18}, {0x3068, 0x19}, {0x3F31, 0x1A}, {0x3A06, 0x1B},
- {0x24B4, 0x1C}, {0x2183, 0x1D}, {0x2EDA, 0x1E}, {0x2BED, 0x1F},
+namespace {
+
+const uint16_t FORMAT_INFO_MASK_QR = 0X5412;
+
+struct DecodeInfo {
+ uint16_t target;
+ uint16_t format;
};
-const uint8_t CBC_QRCoderFormatInformation::BITS_SET_IN_HALF_BYTE[] = {
- 0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
+const DecodeInfo FORMAT_INFO_DECODE_LOOKUP[32] = {
+ {0x5412, 0x00}, {0x5125, 0x01}, {0x5E7C, 0x02}, {0x5B4B, 0x03},
+ {0x45F9, 0x04}, {0x40CE, 0x05}, {0x4F97, 0x06}, {0x4AA0, 0x07},
+ {0x77C4, 0x08}, {0x72F3, 0x09}, {0x7DAA, 0x0A}, {0x789D, 0x0B},
+ {0x662F, 0x0C}, {0x6318, 0x0D}, {0x6C41, 0x0E}, {0x6976, 0x0F},
+ {0x1689, 0x10}, {0x13BE, 0x11}, {0x1CE7, 0x12}, {0x19D0, 0x13},
+ {0x0762, 0x14}, {0x0255, 0x15}, {0x0D0C, 0x16}, {0x083B, 0x17},
+ {0x355F, 0x18}, {0x3068, 0x19}, {0x3F31, 0x1A}, {0x3A06, 0x1B},
+ {0x24B4, 0x1C}, {0x2183, 0x1D}, {0x2EDA, 0x1E}, {0x2BED, 0x1F},
+};
+const uint8_t BITS_SET_IN_HALF_BYTE[] = {0, 1, 1, 2, 1, 2, 2, 3,
+ 1, 2, 2, 3, 2, 3, 3, 4};
+
+CBC_QRCoderFormatInformation* DoDecodeFormatInformation(
+ int32_t maskedFormatInfo) {
+ int32_t bestDifference = std::numeric_limits<int32_t>::max();
+ int32_t bestFormatInfo = 0;
+ for (int32_t i = 0; i < 32; ++i) {
+ const DecodeInfo& decodeInfo = FORMAT_INFO_DECODE_LOOKUP[i];
+ if (decodeInfo.target == maskedFormatInfo)
+ return new CBC_QRCoderFormatInformation(decodeInfo.format);
+
+ int32_t bitsDifference = CBC_QRCoderFormatInformation::NumBitsDiffering(
+ maskedFormatInfo, decodeInfo.target);
+ if (bitsDifference < bestDifference) {
+ bestFormatInfo = decodeInfo.format;
+ bestDifference = bitsDifference;
+ }
+ }
+ if (bestDifference > 3)
+ return nullptr;
+ return new CBC_QRCoderFormatInformation(bestFormatInfo);
+}
+
+} // namespace
-CBC_QRCoderFormatInformation::CBC_QRCoderFormatInformation(int32_t formatInfo) {
- m_errorCorrectLevl =
+CBC_QRCoderFormatInformation::CBC_QRCoderFormatInformation(int32_t formatInfo)
+ : m_dataMask(static_cast<uint8_t>(formatInfo & 0x07)) {
+ m_errorCorrectLevel =
CBC_QRCoderErrorCorrectionLevel::ForBits((formatInfo >> 3) & 0x03);
- m_dataMask = (uint8_t)(formatInfo & 0x07);
}
+
CBC_QRCoderFormatInformation::~CBC_QRCoderFormatInformation() {}
int32_t CBC_QRCoderFormatInformation::NumBitsDiffering(int32_t a, int32_t b) {
a ^= b;
@@ -56,13 +89,17 @@ int32_t CBC_QRCoderFormatInformation::NumBitsDiffering(int32_t a, int32_t b) {
BITS_SET_IN_HALF_BYTE[(a >> 24) & 0x0F] +
BITS_SET_IN_HALF_BYTE[(a >> 28) & 0x0F];
}
-uint8_t CBC_QRCoderFormatInformation::GetDataMask() {
+uint8_t CBC_QRCoderFormatInformation::GetDataMask() const {
return m_dataMask;
}
+
+// static
CBC_QRCoderErrorCorrectionLevel*
CBC_QRCoderFormatInformation::GetErrorCorrectionLevel() {
- return m_errorCorrectLevl;
+ return m_errorCorrectLevel;
}
+
+// static
CBC_QRCoderFormatInformation*
CBC_QRCoderFormatInformation::DecodeFormatInformation(
int32_t maskedFormatInfo) {
@@ -72,25 +109,3 @@ CBC_QRCoderFormatInformation::DecodeFormatInformation(
return formatInfo;
return DoDecodeFormatInformation(maskedFormatInfo ^ FORMAT_INFO_MASK_QR);
}
-CBC_QRCoderFormatInformation*
-CBC_QRCoderFormatInformation::DoDecodeFormatInformation(
- int32_t maskedFormatInfo) {
- int32_t bestDifference = (int32_t)FXSYS_nan();
- int32_t bestFormatInfo = 0;
- for (int32_t i = 0; i < 32; i++) {
- uint16_t const* decodeInfo = &FORMAT_INFO_DECODE_LOOKUP[i][0];
- uint16_t targetInfo = decodeInfo[0];
- if (targetInfo == maskedFormatInfo) {
- return new CBC_QRCoderFormatInformation(decodeInfo[1]);
- }
- int32_t bitsDifference = NumBitsDiffering(maskedFormatInfo, targetInfo);
- if (bitsDifference < bestDifference) {
- bestFormatInfo = decodeInfo[1];
- bestDifference = bitsDifference;
- }
- }
- if (bestDifference <= 3) {
- return new CBC_QRCoderFormatInformation(bestFormatInfo);
- }
- return NULL;
-}
diff --git a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h b/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h
index a988d3bd6b..b069795ce1 100644
--- a/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h
+++ b/xfa/fxbarcode/qrcode/BC_QRCoderFormatInformation.h
@@ -7,26 +7,24 @@
#ifndef XFA_FXBARCODE_QRCODE_BC_QRCODERFORMATINFORMATION_H_
#define XFA_FXBARCODE_QRCODE_BC_QRCODERFORMATINFORMATION_H_
+#include <stdint.h>
+
class CBC_QRCoderErrorCorrectionLevel;
class CBC_QRCoderFormatInformation {
- private:
- static const uint16_t FORMAT_INFO_MASK_QR;
- static const uint16_t FORMAT_INFO_DECODE_LOOKUP[32][2];
- static const uint8_t BITS_SET_IN_HALF_BYTE[16];
- CBC_QRCoderErrorCorrectionLevel* m_errorCorrectLevl;
- uint8_t m_dataMask;
-
public:
- CBC_QRCoderFormatInformation(int32_t formatInfo);
- virtual ~CBC_QRCoderFormatInformation();
- uint8_t GetDataMask();
+ explicit CBC_QRCoderFormatInformation(int32_t formatInfo);
+ ~CBC_QRCoderFormatInformation();
+
+ uint8_t GetDataMask() const;
CBC_QRCoderErrorCorrectionLevel* GetErrorCorrectionLevel();
static int32_t NumBitsDiffering(int32_t a, int32_t b);
static CBC_QRCoderFormatInformation* DecodeFormatInformation(
int32_t maskedFormatInfo);
- static CBC_QRCoderFormatInformation* DoDecodeFormatInformation(
- int32_t maskedFormatInfo);
+
+ private:
+ CBC_QRCoderErrorCorrectionLevel* m_errorCorrectLevel;
+ const uint8_t m_dataMask;
};
#endif // XFA_FXBARCODE_QRCODE_BC_QRCODERFORMATINFORMATION_H_
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 20:58:27 +0000