Differences From Artifact [ccf7b44cda]:
- File
src/OFMatrix4x4.m
— part of check-in
[cf4d6a3dfa]
at
2023-10-29 12:03:10
on branch trunk
— OFMatrix4x4: Convert multiplication to loop
This should make vectorization easier. (user: js, size: 3699) [annotate] [blame] [check-ins using]
To Artifact [5d349ae57d]:
- File src/OFMatrix4x4.m — part of check-in [5b213166ee] at 2023-10-30 23:31:27 on branch trunk — OFMatrix4x4: Use 3DNow! for multiplication (user: js, size: 4918) [annotate] [blame] [check-ins using]
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12 13 14 15 16 17 18 | * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this * file. */ #include "config.h" #import "OFMatrix4x4.h" | | > > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 |
* LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
* file.
*/
#include "config.h"
#import "OFMatrix4x4.h"
#import "OFString.h"
#import "OFSystemInfo.h"
#import "OFOnce.h"
static const float identityValues[4][4] = {
{ 1, 0, 0, 0 },
{ 0, 1, 0, 0 },
{ 0, 0, 1, 0 },
{ 0, 0, 0, 1 }
};
@implementation OFMatrix4x4
#if (defined(OF_AMD64) || defined(OF_X86)) && defined(HAVE_INTEL_SYNTAX)
static void
multiplyWithMatrix_3DNow(OFMatrix4x4 *self, SEL _cmd, OFMatrix4x4 *matrix)
{
float result[4][4] = {{ 0 }};
for (uint_fast8_t i = 0; i < 4; i++) {
for (uint_fast8_t j = 0; j < 4; j++) {
__asm__ (
"movd mm0, [%2]\n\t"
"punpckldq mm0, [%2 + 16]\n\t"
"pfmul mm0, [%1]\n\t"
"movd mm1, [%2 + 32]\n\t"
"punpckldq mm1, [%2 + 48]\n\t"
"pfmul mm1, [%1 + 8]\n\t"
"pfadd mm0, mm1\n\t"
"movq mm1, mm0\n\t"
"psrlq mm1, 32\n\t"
"pfadd mm0, mm1\n\t"
"movd %0, mm0"
:: "m"(result[i][j]), "r"(&matrix->_values[i][0]),
"r"(&self->_values[0][j])
: "mm0", "mm1", "memory"
);
}
}
__asm__ ("femms");
memcpy(self->_values, result, sizeof(result));
}
+ (void)initialize
{
if (self != [OFMatrix4x4 class])
return;
if ([OFSystemInfo supports3DNow]) {
const SEL selector = @selector(multiplyWithMatrix:);
const char *typeEncoding = method_getTypeEncoding(
class_getInstanceMethod(self, selector));
class_replaceMethod(self, selector,
(IMP)multiplyWithMatrix_3DNow, typeEncoding);
}
}
#endif
+ (OFMatrix4x4 *)identityMatrix
{
return [[[OFMatrix4x4 alloc]
initWithValues: identityValues] autorelease];
}
+ (instancetype)matrixWithValues: (const float [4][4])values
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