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Set up wpiformat (#86)

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This commit is contained in:
Tyler Veness
2017-08-25 17:48:06 -07:00
committed by Peter Johnson
parent dd85b1e519
commit 06636a0e1c
75 changed files with 866 additions and 655 deletions
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31
src/main/native/cpp/JpegUtil.cpp
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@@ -1,5 +1,5 @@
/*----------------------------------------------------------------------------*/
/* Copyright (c) FIRST 2016. All Rights Reserved. */
/* Copyright (c) 2016-2017 FIRST. All Rights Reserved. */
/* Open Source Software - may be modified and shared by FRC teams. The code */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project. */
@@ -7,7 +7,7 @@
#include "JpegUtil.h"
#include "support/raw_istream.h"
#include <support/raw_istream.h>
namespace cs {
@@ -54,8 +54,7 @@ bool IsJpeg(llvm::StringRef data) {
// Check for valid SOI
auto bytes = data.bytes_begin();
if (bytes[0] != 0xff || bytes[1] != 0xd8)
return false;
if (bytes[0] != 0xff || bytes[1] != 0xd8) return false;
#if 0
// Check for valid JPEG header (null terminated JFIF)
if (bytes[2] == 0xff && bytes[3] == 0xe0) {
@@ -72,7 +71,7 @@ bool GetJpegSize(llvm::StringRef data, int* width, int* height) {
auto bytes = data.bytes_begin();
size_t blockLength = bytes[4] * 256 + bytes[5] + 4;
for (;;) {
data = data.substr(blockLength); // Get to the next block
data = data.substr(blockLength); // Get to the next block
if (data.size() < 4) return false; // EOF
bytes = data.bytes_begin();
if (bytes[0] != 0xff) return false; // not a tag
@@ -88,7 +87,7 @@ bool GetJpegSize(llvm::StringRef data, int* width, int* height) {
}
}
bool JpegNeedsDHT(const char* data, std::size_t* size, std::size_t* locSOF) {
bool JpegNeedsDHT(const char* data, size_t* size, size_t* locSOF) {
llvm::StringRef sdata(data, *size);
if (!IsJpeg(sdata)) return false;
@@ -98,12 +97,12 @@ bool JpegNeedsDHT(const char* data, std::size_t* size, std::size_t* locSOF) {
auto bytes = sdata.bytes_begin();
size_t blockLength = bytes[4] * 256 + bytes[5] + 4;
for (;;) {
sdata = sdata.substr(blockLength); // Get to the next block
sdata = sdata.substr(blockLength); // Get to the next block
if (sdata.size() < 4) return false; // EOF
bytes = sdata.bytes_begin();
if (bytes[0] != 0xff) return false; // not a tag
if (bytes[1] == 0xda) break; // SOS
if (bytes[1] == 0xc4) return false; // DHT
if (bytes[0] != 0xff) return false; // not a tag
if (bytes[1] == 0xda) break; // SOS
if (bytes[1] == 0xc4) return false; // DHT
if (bytes[1] == 0xc0) *locSOF = sdata.data() - data; // SOF
// Go to the next block
blockLength = bytes[2] * 256 + bytes[3] + 2;
@@ -129,8 +128,7 @@ static inline void ReadInto(wpi::raw_istream& is, std::string& buf,
is.read(&(*buf.begin()) + oldSize, len);
}
bool ReadJpeg(wpi::raw_istream& is, std::string& buf, int* width,
int* height) {
bool ReadJpeg(wpi::raw_istream& is, std::string& buf, int* width, int* height) {
// in case we don't get a SOF
*width = 0;
*height = 0;
@@ -163,7 +161,7 @@ bool ReadJpeg(wpi::raw_istream& is, std::string& buf, int* width,
pos += blockLength;
bytes = reinterpret_cast<const unsigned char*>(buf.data() + pos);
if (bytes[0] != 0xff) return false; // not a tag
if (bytes[0] != 0xff) return false; // not a tag
if (bytes[1] == 0xda) {
// SOS: need to keep reading until we reach a normal marker.
// Byte stuffing ensures we don't get false markers.
@@ -178,15 +176,16 @@ bool ReadJpeg(wpi::raw_istream& is, std::string& buf, int* width,
(bytes[0] < 0xd0 || bytes[0] > 0xd7))
break;
maybeMarker = false;
} else if (bytes[0] == 0xff)
} else if (bytes[0] == 0xff) {
maybeMarker = true;
}
}
// Point back to the start of the block
--pos;
bytes = reinterpret_cast<const unsigned char*>(buf.data() + pos);
}
if (bytes[0] != 0xff) return false; // not a tag
if (bytes[1] == 0xd9) return true; // EOI, we're done
if (bytes[0] != 0xff) return false; // not a tag
if (bytes[1] == 0xd9) return true; // EOI, we're done
if (bytes[1] == 0xc0) sofBlock = true; // SOF
// Go to the next block