diff options
Diffstat (limited to 'src/gui/painting/qdrawhelper.cpp')
| -rw-r--r-- | src/gui/painting/qdrawhelper.cpp | 199 |
1 files changed, 2 insertions, 197 deletions
diff --git a/src/gui/painting/qdrawhelper.cpp b/src/gui/painting/qdrawhelper.cpp index 070491d..c37e49a 100644 --- a/src/gui/painting/qdrawhelper.cpp +++ b/src/gui/painting/qdrawhelper.cpp @@ -46,6 +46,7 @@ #include <private/qdrawhelper_armv6_p.h> #include <private/qdrawhelper_neon_p.h> #include <private/qmath_p.h> +#include <private/qsimd_p.h> #include <qmath.h> QT_BEGIN_NAMESPACE @@ -7720,199 +7721,6 @@ static void qt_memfill16_setup(quint16 *dest, quint16 value, int count); qt_memfill32_func qt_memfill32 = qt_memfill32_setup; qt_memfill16_func qt_memfill16 = qt_memfill16_setup; -enum CPUFeatures { - None = 0, - MMX = 0x1, - MMXEXT = 0x2, - MMX3DNOW = 0x4, - MMX3DNOWEXT = 0x8, - SSE = 0x10, - SSE2 = 0x20, - CMOV = 0x40, - IWMMXT = 0x80, - NEON = 0x100 -}; - -static uint detectCPUFeatures() -{ -#if defined (Q_OS_WINCE) -#if defined (ARM) - if (IsProcessorFeaturePresent(PF_ARM_INTEL_WMMX)) - return IWMMXT; -#elif defined(_X86_) - uint features = 0; -#if defined QT_HAVE_MMX - if (IsProcessorFeaturePresent(PF_MMX_INSTRUCTIONS_AVAILABLE)) - features |= MMX; -#endif -#if defined QT_HAVE_3DNOW - if (IsProcessorFeaturePresent(PF_3DNOW_INSTRUCTIONS_AVAILABLE)) - features |= MMX3DNOW; -#endif - return features; -#endif - return 0; -#elif defined(QT_HAVE_IWMMXT) - // runtime detection only available when running as a previlegied process - static const bool doIWMMXT = !qgetenv("QT_NO_IWMMXT").toInt(); - return doIWMMXT ? IWMMXT : 0; -#elif defined(QT_HAVE_NEON) - static const bool doNEON = !qgetenv("QT_NO_NEON").toInt(); - return doNEON ? NEON : 0; -#else - uint features = 0; -#if defined(__x86_64__) || defined(Q_OS_WIN64) - features = MMX|SSE|SSE2|CMOV; -#elif defined(__ia64__) - features = MMX|SSE|SSE2; -#elif defined(__i386__) || defined(_M_IX86) - unsigned int extended_result = 0; - uint result = 0; - /* see p. 118 of amd64 instruction set manual Vol3 */ -#if defined(Q_CC_GNU) - asm ("push %%ebx\n" - "pushf\n" - "pop %%eax\n" - "mov %%eax, %%ebx\n" - "xor $0x00200000, %%eax\n" - "push %%eax\n" - "popf\n" - "pushf\n" - "pop %%eax\n" - "xor %%edx, %%edx\n" - "xor %%ebx, %%eax\n" - "jz 1f\n" - - "mov $0x00000001, %%eax\n" - "cpuid\n" - "1:\n" - "pop %%ebx\n" - "mov %%edx, %0\n" - : "=r" (result) - : - : "%eax", "%ecx", "%edx" - ); - - asm ("push %%ebx\n" - "pushf\n" - "pop %%eax\n" - "mov %%eax, %%ebx\n" - "xor $0x00200000, %%eax\n" - "push %%eax\n" - "popf\n" - "pushf\n" - "pop %%eax\n" - "xor %%edx, %%edx\n" - "xor %%ebx, %%eax\n" - "jz 2f\n" - - "mov $0x80000000, %%eax\n" - "cpuid\n" - "cmp $0x80000000, %%eax\n" - "jbe 2f\n" - "mov $0x80000001, %%eax\n" - "cpuid\n" - "2:\n" - "pop %%ebx\n" - "mov %%edx, %0\n" - : "=r" (extended_result) - : - : "%eax", "%ecx", "%edx" - ); -#elif defined (Q_OS_WIN) - _asm { - push eax - push ebx - push ecx - push edx - pushfd - pop eax - mov ebx, eax - xor eax, 00200000h - push eax - popfd - pushfd - pop eax - mov edx, 0 - xor eax, ebx - jz skip - - mov eax, 1 - cpuid - mov result, edx - skip: - pop edx - pop ecx - pop ebx - pop eax - } - - _asm { - push eax - push ebx - push ecx - push edx - pushfd - pop eax - mov ebx, eax - xor eax, 00200000h - push eax - popfd - pushfd - pop eax - mov edx, 0 - xor eax, ebx - jz skip2 - - mov eax, 80000000h - cpuid - cmp eax, 80000000h - jbe skip2 - mov eax, 80000001h - cpuid - mov extended_result, edx - skip2: - pop edx - pop ecx - pop ebx - pop eax - } -#endif - - // result now contains the standard feature bits - if (result & (1u << 15)) - features |= CMOV; - if (result & (1u << 23)) - features |= MMX; - if (extended_result & (1u << 22)) - features |= MMXEXT; - if (extended_result & (1u << 31)) - features |= MMX3DNOW; - if (extended_result & (1u << 30)) - features |= MMX3DNOWEXT; - if (result & (1u << 25)) - features |= SSE; - if (result & (1u << 26)) - features |= SSE2; -#endif // i386 - - if (qgetenv("QT_NO_MMX").toInt()) - features ^= MMX; - if (qgetenv("QT_NO_MMXEXT").toInt()) - features ^= MMXEXT; - if (qgetenv("QT_NO_3DNOW").toInt()) - features ^= MMX3DNOW; - if (qgetenv("QT_NO_3DNOWEXT").toInt()) - features ^= MMX3DNOWEXT; - if (qgetenv("QT_NO_SSE").toInt()) - features ^= SSE; - if (qgetenv("QT_NO_SSE2").toInt()) - features ^= SSE2; - - return features; -#endif -} - #if defined(Q_CC_RVCT) && defined(QT_HAVE_ARMV6) // Move these to qdrawhelper_arm.c when all // functions are implemented using arm assembly. @@ -8005,10 +7813,7 @@ static void qt_blend_color_argb_armv6(int count, const QSpan *spans, void *userD void qInitDrawhelperAsm() { - static uint features = 0xffffffff; - if (features != 0xffffffff) - return; - features = detectCPUFeatures(); + const uint features = qDetectCPUFeatures(); qt_memfill32 = qt_memfill_template<quint32, quint32>; qt_memfill16 = qt_memfill_quint16; //qt_memfill_template<quint16, quint16>; |