ObjFW  Check-in [f4313d070a]

Overview
Comment:Reduce ObjC method calls in OFFloatVector and OFFloatMatrix.
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SHA3-256: f4313d070a1278d8d79fc14bc319a51e0cc97f9b76320e03603345ea880f53be
User & Date: js on 2011-06-13 14:08:58
Other Links: manifest | tags
Context
2011-06-13
21:28
Fix a typo in README. check-in: 31ad00b702 user: js tags: trunk
14:08
Reduce ObjC method calls in OFFloatVector and OFFloatMatrix. check-in: f4313d070a user: js tags: trunk
03:47
Fix -[conformsToProtocol:] for the old GNU runtime. check-in: a1769f0105 user: js tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified src/OFFloatMatrix.h from [40205a6dae] to [8345b9957a].

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@class OFFloatVector;

/**
 * \brief A class for storing and manipulating matrices of floats.
 */
@interface OFFloatMatrix: OFObject <OFCopying>
{

	size_t rows, columns;
	float *data;
}

/**
 * \brief Creates a new matrix with the specified dimension.
 *








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@class OFFloatVector;

/**
 * \brief A class for storing and manipulating matrices of floats.
 */
@interface OFFloatMatrix: OFObject <OFCopying>
{
@public
	size_t rows, columns;
	float *data;
}

/**
 * \brief Creates a new matrix with the specified dimension.
 *
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Modified src/OFFloatMatrix.m from [a7338c48b5] to [d37cee00b5].

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 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"


#include <string.h>
#include <math.h>

#import "OFFloatMatrix.h"
#import "OFFloatVector.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"
#import "OFNotImplementedException.h"

#import "OFOutOfRangeException.h"

#import "macros.h"

@implementation OFFloatMatrix
+ matrixWithRows: (size_t)rows
	 columns: (size_t)columns








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 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#include <stdlib.h>
#include <string.h>
#include <math.h>

#import "OFFloatMatrix.h"
#import "OFFloatVector.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"
#import "OFNotImplementedException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"

#import "macros.h"

@implementation OFFloatMatrix
+ matrixWithRows: (size_t)rows
	 columns: (size_t)columns
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{
	self = [super init];

	@try {
		rows = rows_;
		columns = columns_;

		if (SIZE_MAX / rows < columns)

			@throw [OFOutOfRangeException
			    newWithClass: isa];

		data = [self allocMemoryForNItems: rows * columns


					 withSize: sizeof(float)];

		memset(data, 0, rows * columns * sizeof(float));

		if (rows == columns) {
			size_t i;

			for (i = 0; i < rows * columns; i += rows + 1)








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{
	self = [super init];

	@try {
		rows = rows_;
		columns = columns_;

		if (SIZE_MAX / rows < columns ||
		    SIZE_MAX / rows * columns < sizeof(float))
			@throw [OFOutOfRangeException
			    newWithClass: isa];

		if ((data = malloc(rows * columns * sizeof(float))) == NULL)
			@throw [OFOutOfMemoryException
			     newWithClass: isa
			    requestedSize: rows * columns * sizeof(float)];

		memset(data, 0, rows * columns * sizeof(float));

		if (rows == columns) {
			size_t i;

			for (i = 0; i < rows * columns; i += rows + 1)
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	@try {
		size_t i;

		rows = rows_;
		columns = columns_;

		if (SIZE_MAX / rows < columns)

			@throw [OFOutOfRangeException
			    newWithClass: isa];

		data = [self allocMemoryForNItems: rows * columns


					 withSize: sizeof(float)];

		for (i = 0; i < rows; i++) {
			size_t j;

			for (j = i; j < rows * columns; j += rows)
				data[j] = (float)va_arg(arguments, double);
		}
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}








- (void)setValue: (float)value
	  forRow: (size_t)row
	  column: (size_t)column
{
	if (row >= rows || column >= columns)
		@throw [OFOutOfRangeException newWithClass: isa];








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	@try {
		size_t i;

		rows = rows_;
		columns = columns_;

		if (SIZE_MAX / rows < columns ||
		    SIZE_MAX / rows * columns < sizeof(float))
			@throw [OFOutOfRangeException newWithClass: isa];


		if ((data = malloc(rows * columns * sizeof(float))) == NULL)
			@throw [OFOutOfMemoryException
			     newWithClass: isa
			    requestedSize: rows * columns * sizeof(float)];

		for (i = 0; i < rows; i++) {
			size_t j;

			for (j = i; j < rows * columns; j += rows)
				data[j] = (float)va_arg(arguments, double);
		}
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	free(data);

	[super dealloc];
}

- (void)setValue: (float)value
	  forRow: (size_t)row
	  column: (size_t)column
{
	if (row >= rows || column >= columns)
		@throw [OFOutOfRangeException newWithClass: isa];
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	float *newData;
	size_t i, base1, base2;

	if (rows != matrix->columns)
		@throw [OFInvalidArgumentException newWithClass: isa
						       selector: _cmd];

	newData = [self allocMemoryForNItems: matrix->rows * columns


				    withSize: sizeof(float)];

	base1 = 0;
	base2 = 0;

	for (i = 0; i < columns; i++) {
		size_t base3 = base2;
		size_t j;








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	float *newData;
	size_t i, base1, base2;

	if (rows != matrix->columns)
		@throw [OFInvalidArgumentException newWithClass: isa
						       selector: _cmd];

	if ((newData = malloc(matrix->rows * columns * sizeof(float))) == NULL)
		@throw [OFOutOfMemoryException
		     newWithClass: isa
		    requestedSize: matrix->rows * columns * sizeof(float)];

	base1 = 0;
	base2 = 0;

	for (i = 0; i < columns; i++) {
		size_t base3 = base2;
		size_t j;
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			base3++;
		}

		base1 += rows;
		base2 += matrix->rows;
	}

	[self freeMemory: data];
	data = newData;

	rows = matrix->rows;
}

- (void)transpose
{
	float *newData = [self allocMemoryForNItems: rows * columns
					   withSize: sizeof(float)];
	size_t i, k;






	rows ^= columns;
	columns ^= rows;
	rows ^= columns;

	for (i = k = 0; i < rows; i++) {
		size_t j;

		for (j = i; j < rows * columns; j += rows)
			newData[j] = data[k++];
	}

	[self freeMemory: data];
	data = newData;
}

- (void)translateWithVector: (OFFloatVector*)vector
{
	OFFloatMatrix *translation;
	float *cArray;








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			base3++;
		}

		base1 += rows;
		base2 += matrix->rows;
	}

	free(data);
	data = newData;

	rows = matrix->rows;
}

- (void)transpose
{
	float *newData;

	size_t i, k;

	if ((newData = malloc(rows * columns * sizeof(float))) == NULL)
		@throw [OFOutOfMemoryException newWithClass: isa
					      requestedSize: rows * columns *
							     sizeof(float)];

	rows ^= columns;
	columns ^= rows;
	rows ^= columns;

	for (i = k = 0; i < rows; i++) {
		size_t j;

		for (j = i; j < rows * columns; j += rows)
			newData[j] = data[k++];
	}

	free(data);
	data = newData;
}

- (void)translateWithVector: (OFFloatVector*)vector
{
	OFFloatMatrix *translation;
	float *cArray;
︙︙

Modified src/OFFloatVector.m from [5ca73ec320] to [b49ac3419e].

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 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"


#include <string.h>
#include <math.h>

#import "OFFloatVector.h"
#import "OFFloatMatrix.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"
#import "OFNotImplementedException.h"

#import "OFOutOfRangeException.h"

#import "macros.h"



@implementation OFFloatVector






+ vectorWithDimension: (size_t)dimension
{
	return [[[self alloc] initWithDimension: dimension] autorelease];
}

+ vectorWithDimensionAndData: (size_t)dimension, ...
{








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 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

#include "config.h"

#include <stdlib.h>
#include <string.h>
#include <math.h>

#import "OFFloatVector.h"
#import "OFFloatMatrix.h"
#import "OFString.h"

#import "OFInvalidArgumentException.h"
#import "OFNotImplementedException.h"
#import "OFOutOfMemoryException.h"
#import "OFOutOfRangeException.h"

#import "macros.h"

static Class floatMatrix = Nil;

@implementation OFFloatVector
+ (void)initialize
{
	if (self == [OFFloatVector class])
		floatMatrix = [OFFloatMatrix class];
}

+ vectorWithDimension: (size_t)dimension
{
	return [[[self alloc] initWithDimension: dimension] autorelease];
}

+ vectorWithDimensionAndData: (size_t)dimension, ...
{
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- initWithDimension: (size_t)dimension_
{
	self = [super init];

	@try {
		dimension = dimension_;



		data = [self allocMemoryForNItems: dimension



					 withSize: sizeof(float)];

		memset(data, 0, dimension * sizeof(float));
	} @catch (id e) {
		[self release];
		@throw e;
	}









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- initWithDimension: (size_t)dimension_
{
	self = [super init];

	@try {
		dimension = dimension_;

		if (SIZE_MAX / dimension < sizeof(float))
			@throw [OFOutOfRangeException newWithClass: isa];

		if ((data = malloc(dimension * sizeof(float))) == NULL)
			@throw [OFOutOfMemoryException
			     newWithClass: isa
			    requestedSize: dimension * sizeof(float)];

		memset(data, 0, dimension * sizeof(float));
	} @catch (id e) {
		[self release];
		@throw e;
	}
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	self = [super init];

	@try {
		size_t i;

		dimension = dimension_;



		data = [self allocMemoryForNItems: dimension



					 withSize: sizeof(float)];

		for (i = 0; i < dimension; i++)
			data[i] = (float)va_arg(arguments, double);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}








- (void)setValue: (float)value
	 atIndex: (size_t)index
{
	if (index >= dimension)
		@throw [OFOutOfRangeException newWithClass: isa];









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	self = [super init];

	@try {
		size_t i;

		dimension = dimension_;

		if (SIZE_MAX / dimension < sizeof(float))
			@throw [OFOutOfRangeException newWithClass: isa];

		if ((data = malloc(dimension * sizeof(float))) == NULL)
			@throw [OFOutOfMemoryException
			     newWithClass: isa
			    requestedSize: dimension * sizeof(float)];

		for (i = 0; i < dimension; i++)
			data[i] = (float)va_arg(arguments, double);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

- (void)dealloc
{
	free(data);

	[super dealloc];
}

- (void)setValue: (float)value
	 atIndex: (size_t)index
{
	if (index >= dimension)
		@throw [OFOutOfRangeException newWithClass: isa];
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	for (i = 0; i < dimension; i++)
		data[i] /= magnitude;
}

- (void)multiplyWithMatrix: (OFFloatMatrix*)matrix
{
	size_t rows, columns;
	float *cArray, *newData;
	size_t i, j, k;

	columns = [matrix columns];

	if (dimension != columns)
		@throw [OFInvalidArgumentException newWithClass: isa
						       selector: _cmd];

	rows = [matrix rows];


	cArray = [matrix cArray];

	newData = [self allocMemoryForNItems: rows
				    withSize: sizeof(float)];
	memset(newData, 0, rows * sizeof(float));

	for (i = j = k = 0; i < rows * columns; i++) {
		newData[j] += cArray[i] * data[k];

		if (++j == rows) {
			k++;
			j = 0;
		}
	}

	[self freeMemory: data];
	data = newData;

	dimension = rows;
}
@end








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	for (i = 0; i < dimension; i++)
		data[i] /= magnitude;
}

- (void)multiplyWithMatrix: (OFFloatMatrix*)matrix
{

	float *newData;
	size_t i, j, k;


	if (matrix->isa != floatMatrix || dimension != matrix->columns)

		@throw [OFInvalidArgumentException newWithClass: isa
						       selector: _cmd];

	if ((newData = malloc(matrix->rows * sizeof(float))) == NULL)
		@throw [OFOutOfMemoryException
		     newWithClass: isa
		    requestedSize: matrix->rows * sizeof(float)];



	memset(newData, 0, matrix->rows * sizeof(float));

	for (i = j = k = 0; i < matrix->rows * matrix->columns; i++) {
		newData[j] += matrix->data[i] * data[k];

		if (++j == matrix->rows) {
			k++;
			j = 0;
		}
	}

	free(data);
	data = newData;

	dimension = matrix->rows;
}
@end

Modified src/OFObject.m from [251a843844] to [1d0de2f3be].

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#define PRE_IVAR_ALIGN ((sizeof(struct pre_ivar) + \
	(__BIGGEST_ALIGNMENT__ - 1)) & ~(__BIGGEST_ALIGNMENT__ - 1))
#define PRE_IVAR ((struct pre_ivar*)(void*)((char*)self - PRE_IVAR_ALIGN))

static struct {
	Class isa;
} alloc_failed_exception;
static Class autoreleasepool = Nil;

static SEL cxx_construct = NULL;
static SEL cxx_destruct = NULL;

size_t of_pagesize;

#ifdef NEED_OBJC_SYNC_INIT








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#define PRE_IVAR_ALIGN ((sizeof(struct pre_ivar) + \
	(__BIGGEST_ALIGNMENT__ - 1)) & ~(__BIGGEST_ALIGNMENT__ - 1))
#define PRE_IVAR ((struct pre_ivar*)(void*)((char*)self - PRE_IVAR_ALIGN))

static struct {
	Class isa;
} alloc_failed_exception;
static Class autoreleasePool = Nil;

static SEL cxx_construct = NULL;
static SEL cxx_destruct = NULL;

size_t of_pagesize;

#ifdef NEED_OBJC_SYNC_INIT
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- autorelease
{
	/*
	 * Cache OFAutoreleasePool since class lookups are expensive with the
	 * GNU runtime.
	 */
	if (autoreleasepool == Nil)
		autoreleasepool = [OFAutoreleasePool class];

	[autoreleasepool addObject: self];

	return self;
}

- (void)dealloc
{
	Class class;








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- autorelease
{
	/*
	 * Cache OFAutoreleasePool since class lookups are expensive with the
	 * GNU runtime.
	 */
	if (autoreleasePool == Nil)
		autoreleasePool = [OFAutoreleasePool class];

	[autoreleasePool addObject: self];

	return self;
}

- (void)dealloc
{
	Class class;
︙︙

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