diff options
Diffstat (limited to 'src/gui/painting/qdrawhelper_sse2.cpp')
| -rw-r--r-- | src/gui/painting/qdrawhelper_sse2.cpp | 202 |
1 files changed, 140 insertions, 62 deletions
diff --git a/src/gui/painting/qdrawhelper_sse2.cpp b/src/gui/painting/qdrawhelper_sse2.cpp index 6ac64d3..04fe825 100644 --- a/src/gui/painting/qdrawhelper_sse2.cpp +++ b/src/gui/painting/qdrawhelper_sse2.cpp @@ -126,13 +126,100 @@ QT_BEGIN_NAMESPACE result = _mm_or_si128(finalAG, finalRB); \ } +// Basically blend src over dst with the const alpha defined as constAlphaVector. +// nullVector, half, one, colorMask are constant accross the whole image/texture, and should be defined as: +//const __m128i nullVector = _mm_set1_epi32(0); +//const __m128i half = _mm_set1_epi16(0x80); +//const __m128i one = _mm_set1_epi16(0xff); +//const __m128i colorMask = _mm_set1_epi32(0x00ff00ff); +//const __m128i alphaMask = _mm_set1_epi32(0xff000000); +// +// The computation being done is: +// result = s + d * (1-alpha) +// 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; \ + 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); \ + } else if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, nullVector)) != 0xffff) { \ + /* not fully transparent */ \ + /* extract the alpha channel on 2 x 16 bits */ \ + /* so we have room for the multiplication */ \ + /* each 32 bits will be in the form 0x00AA00AA */ \ + /* with A being the 1 - alpha */ \ + __m128i alphaChannel = _mm_srli_epi32(srcVector, 24); \ + 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]); \ + __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); \ + } \ + } \ + for (; x < length; ++x) { \ + uint s = src[x]; \ + if (s >= 0xff000000) \ + dst[x] = s; \ + else if (s != 0) \ + dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s)); \ + } \ +} + +// Basically blend src over dst with the const alpha defined as constAlphaVector. +// nullVector, half, one, colorMask are constant accross the whole image/texture, and should be defined as: +//const __m128i nullVector = _mm_set1_epi32(0); +//const __m128i half = _mm_set1_epi16(0x80); +//const __m128i one = _mm_set1_epi16(0xff); +//const __m128i colorMask = _mm_set1_epi32(0x00ff00ff); +// +// The computation being done is: +// dest = (s + d * sia) * ca + d * cia +// = s * ca + d * (sia * ca + cia) +// = s * ca + d * (1 - sa*ca) +#define BLEND_SOURCE_OVER_ARGB32_WITH_CONST_ALPHA_SSE2(dst, src, length, nullVector, half, one, colorMask, constAlphaVector) \ +{ \ + int x = 0; \ + for (; x < length-3; x += 4) { \ + __m128i srcVector = _mm_loadu_si128((__m128i *)&src[x]); \ + if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVector, nullVector)) != 0xffff) { \ + BYTE_MUL_SSE2(srcVector, srcVector, constAlphaVector, colorMask, half); \ +\ + __m128i alphaChannel = _mm_srli_epi32(srcVector, 24); \ + 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]); \ + __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); \ + } \ + } \ + for (; x < length; ++x) { \ + quint32 s = src[x]; \ + if (s != 0) { \ + s = BYTE_MUL(s, const_alpha); \ + dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s)); \ + } \ + } \ +} + void qt_blend_argb32_on_argb32_sse2(uchar *destPixels, int dbpl, const uchar *srcPixels, int sbpl, int w, int h, int const_alpha) { const quint32 *src = (const quint32 *) srcPixels; - quint32 *dst = (uint *) destPixels; + quint32 *dst = (quint32 *) destPixels; if (const_alpha == 256) { const __m128i alphaMask = _mm_set1_epi32(0xff000000); const __m128i nullVector = _mm_set1_epi32(0); @@ -140,41 +227,7 @@ void qt_blend_argb32_on_argb32_sse2(uchar *destPixels, int dbpl, const __m128i one = _mm_set1_epi16(0xff); const __m128i colorMask = _mm_set1_epi32(0x00ff00ff); for (int y = 0; y < h; ++y) { - int x = 0; - for (; x < w-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); - } else if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVectorAlpha, nullVector)) != 0xffff) { - // not fully transparent - // result = s + d * (1-alpha) - - // extract the alpha channel on 2 x 16 bits - // so we have room for the multiplication - // each 32 bits will be in the form 0x00AA00AA - // with A being the 1 - alpha - __m128i alphaChannel = _mm_srli_epi32(srcVector, 24); - 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]); - __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); - } - } - for (; x<w; ++x) { - uint s = src[x]; - if (s >= 0xff000000) - dst[x] = s; - else if (s != 0) - dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s)); - } + BLEND_SOURCE_OVER_ARGB32_SSE2(dst, src, w, nullVector, half, one, colorMask, alphaMask); dst = (quint32 *)(((uchar *) dst) + dbpl); src = (const quint32 *)(((const uchar *) src) + sbpl); } @@ -189,31 +242,7 @@ void qt_blend_argb32_on_argb32_sse2(uchar *destPixels, int dbpl, const __m128i colorMask = _mm_set1_epi32(0x00ff00ff); const __m128i constAlphaVector = _mm_set1_epi16(const_alpha); for (int y = 0; y < h; ++y) { - int x = 0; - for (; x < w-3; x += 4) { - __m128i srcVector = _mm_loadu_si128((__m128i *)&src[x]); - if (_mm_movemask_epi8(_mm_cmpeq_epi32(srcVector, nullVector)) != 0xffff) { - BYTE_MUL_SSE2(srcVector, srcVector, constAlphaVector, colorMask, half); - - __m128i alphaChannel = _mm_srli_epi32(srcVector, 24); - 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]); - __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); - } - } - for (; x<w; ++x) { - quint32 s = src[x]; - if (s != 0) { - s = BYTE_MUL(s, const_alpha); - dst[x] = s + BYTE_MUL(dst[x], qAlpha(~s)); - } - } + BLEND_SOURCE_OVER_ARGB32_WITH_CONST_ALPHA_SSE2(dst, src, w, nullVector, half, one, colorMask, constAlphaVector) dst = (quint32 *)(((uchar *) dst) + dbpl); src = (const quint32 *)(((const uchar *) src) + sbpl); } @@ -232,7 +261,7 @@ void qt_blend_rgb32_on_rgb32_sse2(uchar *destPixels, int dbpl, int const_alpha) { const quint32 *src = (const quint32 *) srcPixels; - quint32 *dst = (uint *) destPixels; + quint32 *dst = (quint32 *) destPixels; if (const_alpha != 256) { if (const_alpha != 0) { const __m128i nullVector = _mm_set1_epi32(0); @@ -268,6 +297,27 @@ void qt_blend_rgb32_on_rgb32_sse2(uchar *destPixels, int dbpl, } } +void QT_FASTCALL comp_func_SourceOver_sse2(uint *destPixels, const uint *srcPixels, int length, uint const_alpha) +{ + Q_ASSERT(const_alpha > 0); // if const_alpha == 0, this should never be called + Q_ASSERT(const_alpha < 256); + + const quint32 *src = (const quint32 *) srcPixels; + quint32 *dst = (quint32 *) destPixels; + + const __m128i nullVector = _mm_set1_epi32(0); + const __m128i half = _mm_set1_epi16(0x80); + const __m128i one = _mm_set1_epi16(0xff); + const __m128i colorMask = _mm_set1_epi32(0x00ff00ff); + if (const_alpha == 255) { + const __m128i alphaMask = _mm_set1_epi32(0xff000000); + BLEND_SOURCE_OVER_ARGB32_SSE2(dst, src, length, nullVector, half, one, colorMask, alphaMask); + } else { + const __m128i constAlphaVector = _mm_set1_epi16(const_alpha); + BLEND_SOURCE_OVER_ARGB32_WITH_CONST_ALPHA_SSE2(dst, src, length, nullVector, half, one, colorMask, constAlphaVector); + } +} + void qt_memfill32_sse2(quint32 *dest, quint32 value, int count) { if (count < 7) { @@ -312,6 +362,34 @@ void qt_memfill32_sse2(quint32 *dest, quint32 value, int count) } } +void QT_FASTCALL comp_func_solid_SourceOver_sse2(uint *destPixels, int length, uint color, uint const_alpha) +{ + if ((const_alpha & qAlpha(color)) == 255) { + qt_memfill32_sse2(destPixels, color, length); + } else { + if (const_alpha != 255) + color = BYTE_MUL(color, const_alpha); + + const quint32 minusAlphaOfColor = qAlpha(~color); + int x = 0; + + quint32 *dst = (quint32 *) destPixels; + const __m128i colorVector = _mm_set1_epi32(color); + const __m128i colorMask = _mm_set1_epi32(0x00ff00ff); + const __m128i half = _mm_set1_epi16(0x80); + const __m128i minusAlphaOfColorVector = _mm_set1_epi16(minusAlphaOfColor); + + for (; x < length-3; x += 4) { + __m128i dstVector = _mm_loadu_si128((__m128i *)&dst[x]); + BYTE_MUL_SSE2(dstVector, dstVector, minusAlphaOfColorVector, colorMask, half); + dstVector = _mm_add_epi8(colorVector, dstVector); + _mm_storeu_si128((__m128i *)&dst[x], dstVector); + } + for (;x < length; ++x) + destPixels[x] = color + BYTE_MUL(destPixels[x], minusAlphaOfColor); + } +} + void qt_memfill16_sse2(quint16 *dest, quint16 value, int count) { if (count < 3) { |