mirror of
https://invent.kde.org/graphics/okular
synced 2024-08-25 02:45:38 +00:00
76 lines
1.8 KiB
C++
76 lines
1.8 KiB
C++
// Copyright notice missing.
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#include "bigEndianByteReader.h"
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#include "dvi.h"
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Q_UINT8 bigEndianByteReader::readUINT8(void)
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{
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// This check saveguards us against segmentation fault. It is also
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// necessary for virtual fonts, which do not end whith EOP.
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if (command_pointer >= end_pointer)
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return EOP;
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return *(command_pointer++);
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}
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Q_UINT16 bigEndianByteReader::readUINT16(void)
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{
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// This check saveguards us against segmentation fault. It is also
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// necessary for virtual fonts, which do not end whith EOP.
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if (command_pointer >= end_pointer)
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return EOP;
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Q_UINT16 a;
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a = *(command_pointer++);
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a = (a << 8) | *(command_pointer++);
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return a;
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}
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Q_UINT32 bigEndianByteReader::readUINT32(void)
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{
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// This check saveguards us against segmentation fault. It is also
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// necessary for virtual fonts, which do not end whith EOP.
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if (command_pointer >= end_pointer)
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return EOP;
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Q_UINT32 a;
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a = *(command_pointer++);
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a = (a << 8) | *(command_pointer++);
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a = (a << 8) | *(command_pointer++);
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a = (a << 8) | *(command_pointer++);
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return a;
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}
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Q_UINT32 bigEndianByteReader::readUINT(Q_UINT8 size)
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{
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// This check saveguards us against segmentation fault. It is also
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// necessary for virtual fonts, which do not end whith EOP.
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if (command_pointer >= end_pointer)
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return EOP;
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Q_UINT32 a = 0;
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while (size > 0) {
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a = (a << 8) + *(command_pointer++);
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size--;
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}
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return a;
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}
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Q_INT32 bigEndianByteReader::readINT(Q_UINT8 length)
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{
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// This check saveguards us against segmentation fault. It is also
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// necessary for virtual fonts, which do not end whith EOP.
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if (command_pointer >= end_pointer)
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return EOP;
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Q_INT32 a = *(command_pointer++);
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if (a & 0x80)
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a -= 0x100;
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while ((--length) > 0)
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a = (a << 8) | *(command_pointer++);
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return a;
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}
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