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authorKieran Bingham <kieran.bingham@ideasonboard.com>2020-07-28 13:37:48 +0100
committerKieran Bingham <kieran.bingham@ideasonboard.com>2020-10-21 16:15:41 +0100
commitbf104042f9d861ca4e05e5b881d8953e0430762f (patch)
tree2f8984e8234498f9073f5cca30ef9b3eefacff26 /src/ipa
parent1021b42823b63893a4e7ef36d3192d0221da1b26 (diff)
ipa: raspberrypi: Re-use iterator variable
The function gauss_seidel2_SOR() makes use of a function scoped iterator 'i', for several loops, and has a precedence of re-using the function scoped iterator declaration in the majority of cases, except the first where it is declared in the loop scope before the function scope, and later which aliases a new declaration. Re-use the existing iterator variable for consistency, and to prevent variable aliasing. Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: David Plowman <david.plowman@raspberrypi.com> Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Diffstat (limited to 'src/ipa')
-rw-r--r--src/ipa/raspberrypi/controller/rpi/alsc.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/ipa/raspberrypi/controller/rpi/alsc.cpp b/src/ipa/raspberrypi/controller/rpi/alsc.cpp
index 42fbc8a4..183a0c95 100644
--- a/src/ipa/raspberrypi/controller/rpi/alsc.cpp
+++ b/src/ipa/raspberrypi/controller/rpi/alsc.cpp
@@ -606,9 +606,9 @@ static double gauss_seidel2_SOR(double const M[XY][4], double omega,
double lambda[XY])
{
double old_lambda[XY];
- for (int i = 0; i < XY; i++)
- old_lambda[i] = lambda[i];
int i;
+ for (i = 0; i < XY; i++)
+ old_lambda[i] = lambda[i];
lambda[0] = compute_lambda_bottom_start(0, M, lambda);
for (i = 1; i < X; i++)
lambda[i] = compute_lambda_bottom(i, M, lambda);
@@ -628,7 +628,7 @@ static double gauss_seidel2_SOR(double const M[XY][4], double omega,
lambda[i] = compute_lambda_bottom(i, M, lambda);
lambda[0] = compute_lambda_bottom_start(0, M, lambda);
double max_diff = 0;
- for (int i = 0; i < XY; i++) {
+ for (i = 0; i < XY; i++) {
lambda[i] = old_lambda[i] + (lambda[i] - old_lambda[i]) * omega;
if (fabs(lambda[i] - old_lambda[i]) > fabs(max_diff))
max_diff = lambda[i] - old_lambda[i];
d='n196' href='#n196'>196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2019, Google Inc.
 *
 * file_descriptor.cpp - FileDescriptor test
 */

#include <fcntl.h>
#include <iostream>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>

#include <libcamera/file_descriptor.h>

#include "libcamera/internal/utils.h"

#include "test.h"

using namespace libcamera;
using namespace std;

class FileDescriptorTest : public Test
{
protected:
	int init()
	{
		desc1_ = nullptr;
		desc2_ = nullptr;

		fd_ = open("/tmp", O_TMPFILE | O_RDWR, S_IRUSR | S_IWUSR);
		if (fd_ < 0)
			return TestFail;

		/* Cache inode number of temp file. */
		struct stat s;
		if (fstat(fd_, &s))
			return TestFail;

		inodeNr_ = s.st_ino;

		return 0;
	}

	int run()
	{
		/* Test creating empty FileDescriptor. */
		desc1_ = new FileDescriptor();

		if (desc1_->fd() != -1) {
			std::cout << "Failed fd numerical check (default constructor)"
				  << std::endl;
			return TestFail;
		}

		delete desc1_;
		desc1_ = nullptr;

		/*
		 * Test creating FileDescriptor by copying numerical file
		 * descriptor.
		 */
		desc1_ = new FileDescriptor(fd_);
		if (desc1_->fd() == fd_) {
			std::cout << "Failed fd numerical check (lvalue ref constructor)"
				  << std::endl;
			return TestFail;
		}

		if (!isValidFd(fd_) || !isValidFd(desc1_->fd())) {
			std::cout << "Failed fd validity after construction (lvalue ref constructor)"
				  << std::endl;
			return TestFail;
		}

		int fd = desc1_->fd();

		delete desc1_;
		desc1_ = nullptr;

		if (!isValidFd(fd_) || isValidFd(fd)) {
			std::cout << "Failed fd validity after destruction (lvalue ref constructor)"
				  << std::endl;
			return TestFail;
		}

		/*
		 * Test creating FileDescriptor by taking ownership of
		 * numerical file descriptor.
		 */
		int dupFd = dup(fd_);
		int dupFdCopy = dupFd;

		desc1_ = new FileDescriptor(std::move(dupFd));
		if (desc1_->fd() != dupFdCopy) {
			std::cout << "Failed fd numerical check (rvalue ref constructor)"
				  << std::endl;
			return TestFail;
		}

		if (dupFd != -1 || !isValidFd(fd_) || !isValidFd(desc1_->fd())) {
			std::cout << "Failed fd validity after construction (rvalue ref constructor)"
				  << std::endl;
			return TestFail;
		}

		fd = desc1_->fd();

		delete desc1_;
		desc1_ = nullptr;

		if (!isValidFd(fd_) || isValidFd(fd)) {
			std::cout << "Failed fd validity after destruction (rvalue ref constructor)"
				  << std::endl;
			return TestFail;
		}

		/* Test creating FileDescriptor from other FileDescriptor. */
		desc1_ = new FileDescriptor(fd_);
		desc2_ = new FileDescriptor(*desc1_);

		if (desc1_->fd() == fd_ || desc2_->fd() == fd_ || desc1_->fd() != desc2_->fd()) {
			std::cout << "Failed fd numerical check (copy constructor)"
				  << std::endl;
			return TestFail;
		}

		if (!isValidFd(desc1_->fd()) || !isValidFd(desc2_->fd())) {
			std::cout << "Failed fd validity after construction (copy constructor)"
				  << std::endl;
			return TestFail;
		}

		delete desc1_;
		desc1_ = nullptr;

		if (!isValidFd(desc2_->fd())) {
			std::cout << "Failed fd validity after destruction (copy constructor)"
				  << std::endl;
			return TestFail;
		}

		delete desc2_;
		desc2_ = nullptr;

		/* Test creating FileDescriptor by taking over other FileDescriptor. */
		desc1_ = new FileDescriptor(fd_);
		fd = desc1_->fd();
		desc2_ = new FileDescriptor(std::move(*desc1_));

		if (desc1_->fd() != -1 || desc2_->fd() != fd) {
			std::cout << "Failed fd numerical check (move constructor)"
				  << std::endl;
			return TestFail;
		}

		if (!isValidFd(desc2_->fd())) {
			std::cout << "Failed fd validity after construction (move constructor)"
				  << std::endl;
			return TestFail;
		}

		delete desc1_;
		desc1_ = nullptr;
		delete desc2_;
		desc2_ = nullptr;

		/* Test creating FileDescriptor by copy assignment. */
		desc1_ = new FileDescriptor();
		desc2_ = new FileDescriptor(fd_);

		fd = desc2_->fd();
		*desc1_ = *desc2_;

		if (desc1_->fd() != fd || desc2_->fd() != fd) {
			std::cout << "Failed fd numerical check (copy assignment)"
				  << std::endl;
			return TestFail;
		}

		if (!isValidFd(desc1_->fd()) || !isValidFd(desc2_->fd())) {
			std::cout << "Failed fd validity after construction (copy assignment)"
				  << std::endl;
			return TestFail;
		}

		delete desc1_;
		desc1_ = nullptr;
		delete desc2_;
		desc2_ = nullptr;

		/* Test creating FileDescriptor by move assignment. */
		desc1_ = new FileDescriptor();
		desc2_ = new FileDescriptor(fd_);

		fd = desc2_->fd();
		*desc1_ = std::move(*desc2_);

		if (desc1_->fd() != fd || desc2_->fd() != -1) {
			std::cout << "Failed fd numerical check (move assignment)"
				  << std::endl;
			return TestFail;
		}

		if (!isValidFd(desc1_->fd())) {
			std::cout << "Failed fd validity after construction (move assignment)"
				  << std::endl;
			return TestFail;
		}

		delete desc1_;
		desc1_ = nullptr;
		delete desc2_;
		desc2_ = nullptr;

		return TestPass;
	}

	void cleanup()
	{
		delete desc2_;
		delete desc1_;

		if (fd_ > 0)
			close(fd_);
	}

private:
	bool isValidFd(int fd)
	{
		struct stat s;
		if (fstat(fd, &s))
			return false;

		/* Check that inode number matches cached temp file. */
		return s.st_ino == inodeNr_;
	}

	int fd_;
	ino_t inodeNr_;
	FileDescriptor *desc1_, *desc2_;
};

TEST_REGISTER(FileDescriptorTest)