QMMXCommonIntrinsics Struct Reference

#include <qdrawhelper_mmx_p.h>

Static Public Functions
static m64	_byte_mul (const m64 &a, const m64 &b, const m64 &mmx_0x0080)
static m64	_interpolate_pixel_255 (const m64 &x, const m64 &a, const m64 &y, const m64 &b, const m64 &mmx_0x0080)
static m64	_load (uint x, const m64 &mmx_0x0000)
static m64	_load_alpha (uint x, const m64 &)
static m64	_negate (const m64 &x, const m64 &mmx_0x00ff)
static m64	_premul (m64 x, const m64 &mmx_0x0080)
static uint	_store (const m64 &x, const m64 &mmx_0x0000)
static m64	add (const m64 &a, const m64 &b)
static m64	alpha (m64 x)
static m64	interpolate_pixel_256 (const m64 &x, const m64 &a, const m64 &y, const m64 &b)

Detailed Description

Definition at line 76 of file qdrawhelper_mmx_p.h.

Functions

_byte_mul()

static m64 QMMXCommonIntrinsics::_byte_mul ( const m64 &  a, const m64 &  b, const m64 &  mmx_0x0080  )

inlinestatic

Definition at line 92 of file qdrawhelper_mmx_p.h.

Referenced by _premul().

    {
        m64 res = _mm_mullo_pi16(a, b);
        res = _mm_adds_pu16(res, mmx_0x0080);
        res = _mm_adds_pu16(res, _mm_srli_pi16 (res, 8));
        return _mm_srli_pi16(res, 8);
    }

_interpolate_pixel_255()

static m64 QMMXCommonIntrinsics::_interpolate_pixel_255 ( const m64 &  x, const m64 &  a, const m64 &  y, const m64 &  b, const m64 &  mmx_0x0080  )

inlinestatic

Definition at line 108 of file qdrawhelper_mmx_p.h.

    {
        m64 res = _mm_adds_pu16(_mm_mullo_pi16(x, a), _mm_mullo_pi16(y, b));
        res = _mm_adds_pu16(res, mmx_0x0080);
        res = _mm_adds_pu16(res, _mm_srli_pi16 (res, 8));
        return _mm_srli_pi16(res, 8);
    }

_load()

static m64 QMMXCommonIntrinsics::_load ( uint  x, const m64 &  mmx_0x0000  )

inlinestatic

Definition at line 123 of file qdrawhelper_mmx_p.h.

                                                           {
        return _mm_unpacklo_pi8(_mm_cvtsi32_si64(x), mmx_0x0000);
    }

_load_alpha()

static m64 QMMXCommonIntrinsics::_load_alpha ( uint  x, const m64 &    )

inlinestatic

Definition at line 127 of file qdrawhelper_mmx_p.h.

                                                       {
        x |= (x << 16);
        return _mm_set1_pi32(x);
    }

_negate()

static m64 QMMXCommonIntrinsics::_negate ( const m64 &  x, const m64 &  mmx_0x00ff  )

inlinestatic

Definition at line 84 of file qdrawhelper_mmx_p.h.

                                                                   {
        return _mm_xor_si64(x, mmx_0x00ff);
    }

_premul()

static m64 QMMXCommonIntrinsics::_premul ( m64  x, const m64 &  mmx_0x0080  )

inlinestatic

Definition at line 118 of file qdrawhelper_mmx_p.h.

                                                            {
        m64 a = alpha(x);
        return _byte_mul(x, a, mmx_0x0080);
    }

_store()

static uint QMMXCommonIntrinsics::_store ( const m64 &  x, const m64 &  mmx_0x0000  )

inlinestatic

Definition at line 132 of file qdrawhelper_mmx_p.h.

                                                                   {
        return _mm_cvtsi64_si32(_mm_packs_pu16(x, mmx_0x0000));
    }

add()

static m64 QMMXCommonIntrinsics::add ( const m64 &  a, const m64 &  b  )

inlinestatic

Definition at line 88 of file qdrawhelper_mmx_p.h.

                                                      {
        return  _mm_adds_pu16 (a, b);
    }

alpha()

static m64 QMMXCommonIntrinsics::alpha ( m64  x )

inlinestatic

Definition at line 78 of file qdrawhelper_mmx_p.h.

Referenced by _premul().

                                   {
        x = _mm_unpackhi_pi16(x, x);
        x = _mm_unpackhi_pi16(x, x);
        return x;
    }

interpolate_pixel_256()

static m64 QMMXCommonIntrinsics::interpolate_pixel_256 ( const m64 &  x, const m64 &  a, const m64 &  y, const m64 &  b  )

inlinestatic

Definition at line 101 of file qdrawhelper_mmx_p.h.

    {
        m64 res = _mm_adds_pu16(_mm_mullo_pi16(x, a), _mm_mullo_pi16(y, b));
        return _mm_srli_pi16(res, 8);
    }

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The documentation for this struct was generated from the following file:

• /src/gui/painting/qdrawhelper_mmx_p.h