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#include "config.h"
#import "OFMatrix4x4.h"
#import "OFOnce.h"
#import "OFString.h"
static const float identityValues[16] = {
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1
static const float identityValues[4][4] = {
{ 1, 0, 0, 0 },
{ 0, 1, 0, 0 },
{ 0, 0, 1, 0 },
{ 0, 0, 0, 1 }
};
@implementation OFMatrix4x4
+ (OFMatrix4x4 *)identityMatrix
{
return [[[OFMatrix4x4 alloc]
initWithValues: identityValues] autorelease];
}
+ (instancetype)matrixWithValues: (const float [16])values
+ (instancetype)matrixWithValues: (const float [4][4])values
{
return [[[self alloc] initWithValues: values] autorelease];
}
- (instancetype)initWithValues: (const float [16])values
- (instancetype)initWithValues: (const float [4][4])values
{
self = [super init];
memcpy(_values, values, 16 * sizeof(float));
memcpy(_values, values, sizeof(_values));
return self;
}
- (float *)values
- (float (*)[4][4])values
{
return _values;
return &_values;
}
- (instancetype)copy
{
return [[OFMatrix4x4 alloc] initWithValues: _values];
}
- (bool)isEqual: (OFMatrix4x4 *)matrix
{
if (![matrix isKindOfClass: [OFMatrix4x4 class]])
return false;
return (memcmp(_values, matrix->_values, 16 * sizeof(float)) == 0);
return (memcmp(_values, matrix->_values, sizeof(_values)) == 0);
}
- (unsigned long)hash
{
unsigned long hash;
OFHashInit(&hash);
for (size_t i = 0; i < 16; i++)
OFHashAddHash(&hash, OFFloatToRawUInt32(_values[i]));
for (uint_fast8_t i = 0; i < 4; i++)
for (uint_fast8_t j = 0; j < 4; j++)
OFHashAddHash(&hash, OFFloatToRawUInt32(_values[i][j]));
OFHashFinalize(&hash);
return hash;
}
- (void)multiplyWithMatrix: (OFMatrix4x4 *)matrix
{
float r[16], *m = _values, *l = matrix->_values;
memcpy(r, m, sizeof(r));
float right[4][4];
memcpy(right, _values, sizeof(right));
#define left matrix->_values
_values[0][0] = left[0][0] * right[0][0] + left[0][1] * right[1][0] +
m[ 0] = l[0] * r[ 0] + l[4] * r[ 1] + l[ 8] * r[ 2] + l[12] * r[ 3];
m[ 1] = l[1] * r[ 0] + l[5] * r[ 1] + l[ 9] * r[ 2] + l[13] * r[ 3];
m[ 2] = l[2] * r[ 0] + l[6] * r[ 1] + l[10] * r[ 2] + l[14] * r[ 3];
m[ 3] = l[3] * r[ 0] + l[7] * r[ 1] + l[11] * r[ 2] + l[15] * r[ 3];
m[ 4] = l[0] * r[ 4] + l[4] * r[ 5] + l[ 8] * r[ 6] + l[12] * r[ 7];
m[ 5] = l[1] * r[ 4] + l[5] * r[ 5] + l[ 9] * r[ 6] + l[13] * r[ 7];
m[ 6] = l[2] * r[ 4] + l[6] * r[ 5] + l[10] * r[ 6] + l[14] * r[ 7];
m[ 7] = l[3] * r[ 4] + l[7] * r[ 5] + l[11] * r[ 6] + l[15] * r[ 7];
m[ 8] = l[0] * r[ 8] + l[4] * r[ 9] + l[ 8] * r[10] + l[12] * r[11];
m[ 9] = l[1] * r[ 8] + l[5] * r[ 9] + l[ 9] * r[10] + l[13] * r[11];
m[10] = l[2] * r[ 8] + l[6] * r[ 9] + l[10] * r[10] + l[14] * r[11];
m[11] = l[3] * r[ 8] + l[7] * r[ 9] + l[11] * r[10] + l[15] * r[11];
left[0][2] * right[2][0] + left[0][3] * right[3][0];
_values[0][1] = left[0][0] * right[0][1] + left[0][1] * right[1][1] +
left[0][2] * right[2][1] + left[0][3] * right[3][1];
_values[0][2] = left[0][0] * right[0][2] + left[0][1] * right[1][2] +
left[0][2] * right[2][2] + left[0][3] * right[3][2];
_values[0][3] = left[0][0] * right[0][3] + left[0][1] * right[1][3] +
left[0][2] * right[2][3] + left[0][3] * right[3][3];
_values[1][0] = left[1][0] * right[0][0] + left[1][1] * right[1][0] +
left[1][2] * right[2][0] + left[1][3] * right[3][0];
_values[1][1] = left[1][0] * right[0][1] + left[1][1] * right[1][1] +
left[1][2] * right[2][1] + left[1][3] * right[3][1];
_values[1][2] = left[1][0] * right[0][2] + left[1][1] * right[1][2] +
left[1][2] * right[2][2] + left[1][3] * right[3][2];
_values[1][3] = left[1][0] * right[0][3] + left[1][1] * right[1][3] +
left[1][2] * right[2][3] + left[1][3] * right[3][3];
_values[2][0] = left[2][0] * right[0][0] + left[2][1] * right[1][0] +
left[2][2] * right[2][0] + left[2][3] * right[3][0];
_values[2][1] = left[2][0] * right[0][1] + left[2][1] * right[1][1] +
left[2][2] * right[2][1] + left[2][3] * right[3][1];
m[12] = l[0] * r[12] + l[4] * r[13] + l[ 8] * r[14] + l[12] * r[15];
m[13] = l[1] * r[12] + l[5] * r[13] + l[ 9] * r[14] + l[13] * r[15];
m[14] = l[2] * r[12] + l[6] * r[13] + l[10] * r[14] + l[14] * r[15];
m[15] = l[3] * r[12] + l[7] * r[13] + l[11] * r[14] + l[15] * r[15];
(float [16]){
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
vector.x, vector.y, vector.z, 1
(float [4][4]){
{ 1, 0, 0, vector.x },
{ 0, 1, 0, vector.y },
{ 0, 0, 1, vector.z },
{ 0, 0, 0, 1 }
}];
[self multiplyWithMatrix: translation];
[translation release];
}
- (void)scaleWithVector: (OFVector3D)vector
{
OFMatrix4x4 *scale = [[OFMatrix4x4 alloc] initWithValues:
(float [16]){
vector.x, 0, 0, 0,
0, vector.y, 0, 0,
0, 0, vector.z, 0,
0, 0, 0, 1
(float [4][4]){
{ vector.x, 0, 0, 0 },
{ 0, vector.y, 0, 0 },
{ 0, 0, vector.z, 0 },
{ 0, 0, 0, 1 }
}];
[self multiplyWithMatrix: scale];
[scale release];
}
- (OFVector4D)transformedVector: (OFVector4D)vec
- (OFVector4D)transformedVector: (OFVector4D)vector
{
float *m = _values;
m[0] * vec.x + m[4] * vec.y + m[ 8] * vec.z + m[12] * vec.w,
m[1] * vec.x + m[5] * vec.y + m[ 9] * vec.z + m[13] * vec.w,
m[2] * vec.x + m[6] * vec.y + m[10] * vec.z + m[14] * vec.w,
m[3] * vec.x + m[7] * vec.y + m[11] * vec.z + m[15] * vec.w);
_values[0][0] * vector.x + _values[0][1] * vector.y +
_values[0][2] * vector.z + _values[0][3] * vector.w,
_values[1][0] * vector.x + _values[1][1] * vector.y +
_values[1][2] * vector.z + _values[1][3] * vector.w,
_values[2][0] * vector.x + _values[2][1] * vector.y +
_values[2][2] * vector.z + _values[2][3] * vector.w,
_values[3][0] * vector.x + _values[3][1] * vector.y +
_values[3][2] * vector.z + _values[3][3] * vector.w);
}
- (OFString *)description
{
return [OFString stringWithFormat:
@"<OFMatrix4x4: {\n"
@"\t%g %g %g %g\n"
@"\t%g %g %g %g\n"
@"\t%g %g %g %g\n"
@"\t%g %g %g %g\n"
@"}>",
_values[0], _values[4], _values[8], _values[12],
_values[1], _values[5], _values[9], _values[13],
_values[2], _values[6], _values[10], _values[14],
_values[3], _values[7], _values[11], _values[15]];
_values[0][0], _values[0][1], _values[0][2], _values[0][3],
_values[1][0], _values[1][1], _values[1][2], _values[1][3],
_values[2][0], _values[2][1], _values[2][2], _values[2][3],
_values[3][0], _values[3][1], _values[3][2], _values[3][3]];
}
@end
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