diff options
Diffstat (limited to 'src/gui/painting/qdrawingprimitive_sse2_p.h')
| -rw-r--r-- | src/gui/painting/qdrawingprimitive_sse2_p.h | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/src/gui/painting/qdrawingprimitive_sse2_p.h b/src/gui/painting/qdrawingprimitive_sse2_p.h index 3c96946..18355c2 100644 --- a/src/gui/painting/qdrawingprimitive_sse2_p.h +++ b/src/gui/painting/qdrawingprimitive_sse2_p.h @@ -141,12 +141,24 @@ QT_BEGIN_NAMESPACE // with shortcuts if fully opaque or fully transparent. #define BLEND_SOURCE_OVER_ARGB32_SSE2(dst, src, length, nullVector, half, one, colorMask, alphaMask) { \ int x = 0; \ +\ + /* First, get dst aligned. */ \ + const int offsetToAlignOn16Bytes = (4 - ((reinterpret_cast<quintptr>(dst) >> 2) & 0x3)) & 0x3;\ + const int prologLength = qMin(length, offsetToAlignOn16Bytes);\ + for (; x < prologLength; ++x) { \ + uint s = src[x]; \ + if (s >= 0xff000000) \ + dst[x] = s; \ + else if (s != 0) \ + dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s)); \ + } \ +\ for (; x < length-3; x += 4) { \ const __m128i srcVector = _mm_loadu_si128((__m128i *)&src[x]); \ const __m128i srcVectorAlpha = _mm_and_si128(srcVector, alphaMask); \ if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, alphaMask)) == 0xffff) { \ /* all opaque */ \ - _mm_storeu_si128((__m128i *)&dst[x], srcVector); \ + _mm_store_si128((__m128i *)&dst[x], srcVector); \ } else if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, nullVector)) != 0xffff) { \ /* not fully transparent */ \ /* extract the alpha channel on 2 x 16 bits */ \ @@ -157,13 +169,13 @@ QT_BEGIN_NAMESPACE alphaChannel = _mm_or_si128(alphaChannel, _mm_slli_epi32(alphaChannel, 16)); \ alphaChannel = _mm_sub_epi16(one, alphaChannel); \ \ - const __m128i dstVector = _mm_loadu_si128((__m128i *)&dst[x]); \ + const __m128i dstVector = _mm_load_si128((__m128i *)&dst[x]); \ __m128i destMultipliedByOneMinusAlpha; \ BYTE_MUL_SSE2(destMultipliedByOneMinusAlpha, dstVector, alphaChannel, colorMask, half); \ \ /* result = s + d * (1-alpha) */\ const __m128i result = _mm_add_epi8(srcVector, destMultipliedByOneMinusAlpha); \ - _mm_storeu_si128((__m128i *)&dst[x], result); \ + _mm_store_si128((__m128i *)&dst[x], result); \ } \ } \ for (; x < length; ++x) { \ @@ -189,6 +201,17 @@ QT_BEGIN_NAMESPACE #define BLEND_SOURCE_OVER_ARGB32_WITH_CONST_ALPHA_SSE2(dst, src, length, nullVector, half, one, colorMask, constAlphaVector) \ { \ int x = 0; \ +\ + const int offsetToAlignOn16Bytes = (4 - ((reinterpret_cast<quintptr>(dst) >> 2) & 0x3)) & 0x3;\ + const int prologLength = qMin(length, offsetToAlignOn16Bytes);\ + for (; x < prologLength; ++x) { \ + quint32 s = src[x]; \ + if (s != 0) { \ + s = BYTE_MUL(s, const_alpha); \ + dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s)); \ + } \ + } \ +\ for (; x < length-3; x += 4) { \ __m128i srcVector = _mm_loadu_si128((__m128i *)&src[x]); \ if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVector, nullVector)) != 0xffff) { \ @@ -198,12 +221,12 @@ QT_BEGIN_NAMESPACE alphaChannel = _mm_or_si128(alphaChannel, _mm_slli_epi32(alphaChannel, 16)); \ alphaChannel = _mm_sub_epi16(one, alphaChannel); \ \ - const __m128i dstVector = _mm_loadu_si128((__m128i *)&dst[x]); \ + const __m128i dstVector = _mm_load_si128((__m128i *)&dst[x]); \ __m128i destMultipliedByOneMinusAlpha; \ BYTE_MUL_SSE2(destMultipliedByOneMinusAlpha, dstVector, alphaChannel, colorMask, half); \ \ const __m128i result = _mm_add_epi8(srcVector, destMultipliedByOneMinusAlpha); \ - _mm_storeu_si128((__m128i *)&dst[x], result); \ + _mm_store_si128((__m128i *)&dst[x], result); \ } \ } \ for (; x < length; ++x) { \ |