66 lines
1.6 KiB
C
66 lines
1.6 KiB
C
#include "buffer.h"
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uint8_t GetBufferUint8(uint8_t *buffer, uint32_t offset)
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{
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return *(uint8_t*)(buffer + offset);
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}
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uint16_t GetBufferUint16(uint8_t *buffer, uint32_t offset)
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{
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return *(uint16_t*)(buffer+ offset);
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}
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uint32_t GetBufferUint32(uint8_t *buffer, uint32_t offset)
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{
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return *(uint32_t*)(buffer + offset);
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}
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uint8_t GetBufferUint8Be(uint8_t *buffer, uint32_t offset)
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{
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return buffer[offset];
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}
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uint16_t GetBufferUint16Be(uint8_t *buffer, uint32_t offset)
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{
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return (buffer[offset] << 8) + (buffer[offset+1] << 0);
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}
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uint32_t GetBufferUint32Be(uint8_t *buffer, uint32_t offset)
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{
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return (buffer[offset] << 24) + (buffer[offset+1] << 16) + (buffer[offset+2] << 8) + (buffer[offset+3] << 0);
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}
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void SetBufferUint8(uint8_t *buffer, uint32_t offset, uint8_t value)
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{
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*(uint8_t*)(buffer + offset) = value;
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}
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void SetBufferUint16(uint8_t *buffer, uint32_t offset, uint16_t value)
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{
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*(uint16_t*)(buffer + offset) = value;
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}
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void SetBufferUint32(uint8_t *buffer, uint32_t offset, uint32_t value)
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{
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*(uint32_t*)(buffer + offset) = value;
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}
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void SetBufferUint8Be(uint8_t *buffer, uint32_t offset, uint8_t value)
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{
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buffer[offset] = value;
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}
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void SetBufferUint16Be(uint8_t *buffer, uint32_t offset, uint16_t value)
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{
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buffer[offset+0] = (value >> 8) & 0xff;
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buffer[offset+1] = (value >> 0) & 0xff;
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}
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void SetBufferUint32Be(uint8_t *buffer, uint32_t offset, uint32_t value)
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{
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buffer[offset+0] = (value >> 24) & 0xff;
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buffer[offset+1] = (value >> 16) & 0xff;
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buffer[offset+2] = (value >> 8) & 0xff;
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buffer[offset+3] = (value >> 0) & 0xff;
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}
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