Overview
| Comment: | OFMatrix4x4: Use 3DNow! to transform vectors |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
1ac0583aaed9bf64d07fcb9e1b2e286e |
| User & Date: | js on 2023-10-30 23:58:08 |
| Other Links: | manifest | tags |
Context
|
2023-10-31
| ||
| 20:25 | Don't use -masm=intel check-in: d9af65de97 user: js tags: trunk | |
|
2023-10-30
| ||
| 23:58 | OFMatrix4x4: Use 3DNow! to transform vectors check-in: 1ac0583aae user: js tags: trunk | |
| 23:31 | OFMatrix4x4: Use 3DNow! for multiplication check-in: 5b213166ee user: js tags: trunk | |
Changes
Modified src/OFMatrix4x4.m from [5d349ae57d] to [9f0079818c].
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}
}
__asm__ ("femms");
memcpy(self->_values, result, sizeof(result));
}
+ (void)initialize
{
if (self != [OFMatrix4x4 class])
return;
if ([OFSystemInfo supports3DNow]) {
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}
}
__asm__ ("femms");
memcpy(self->_values, result, sizeof(result));
}
static OFVector4D
transformedVector_3DNow(OFMatrix4x4 *self, SEL _cmd, OFVector4D vector)
{
OFVector4D result;
__asm__ (
"movq mm0, [%2]\n\t"
"movq mm1, [%2 + 8]\n"
"\n\t"
"movq mm2, mm0\n\t"
"movq mm3, mm1\n\t"
"pfmul mm2, [%1]\n\t"
"pfmul mm3, [%1 + 8]\n\t"
"pfadd mm2, mm3\n\t"
"movq mm3, mm2\n\t"
"psrlq mm3, 32\n\t"
"pfadd mm2, mm3\n"
"\n\t"
"movq mm3, mm0\n\t"
"movq mm4, mm1\n\t"
"pfmul mm3, [%1 + 16]\n\t"
"pfmul mm4, [%1 + 24]\n\t"
"pfadd mm3, mm4\n\t"
"movq mm4, mm3\n\t"
"psrlq mm4, 32\n\t"
"pfadd mm3, mm4\n"
"\n\t"
"punpckldq mm2, mm3\n\t"
"movq [%0], mm2\n"
"\n\t"
"movq mm2, mm0\n\t"
"movq mm3, mm1\n\t"
"pfmul mm2, [%1 + 32]\n\t"
"pfmul mm3, [%1 + 40]\n\t"
"pfadd mm2, mm3\n\t"
"movq mm3, mm2\n\t"
"psrlq mm3, 32\n\t"
"pfadd mm2, mm3\n"
"\n\t"
"pfmul mm0, [%1 + 48]\n\t"
"pfmul mm1, [%1 + 56]\n\t"
"pfadd mm0, mm1\n\t"
"movq mm1, mm0\n\t"
"psrlq mm1, 32\n\t"
"pfadd mm0, mm1\n"
"\n\t"
"punpckldq mm2, mm0\n\t"
"movq [%0 + 8], mm2\n"
"\n\t"
"femms"
:: "r"(&result), "r"(&self->_values), "r"(&vector)
: "mm0", "mm1", "mm2", "mm3", "mm4", "memory"
);
return result;
}
+ (void)initialize
{
if (self != [OFMatrix4x4 class])
return;
if ([OFSystemInfo supports3DNow]) {
SEL selector;
const char *typeEncoding;
selector = @selector(multiplyWithMatrix:);
typeEncoding = method_getTypeEncoding(
class_getInstanceMethod(self, selector));
class_replaceMethod(self, selector,
(IMP)multiplyWithMatrix_3DNow, typeEncoding);
selector = @selector(transformedVector:);
typeEncoding = method_getTypeEncoding(
class_getInstanceMethod(self, selector));
class_replaceMethod(self, selector,
(IMP)transformedVector_3DNow, typeEncoding);
}
}
#endif
+ (OFMatrix4x4 *)identityMatrix
{
return [[[OFMatrix4x4 alloc]
|
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