diff options
Diffstat (limited to 'src/3rdparty/libwebp/src/dsp/alpha_processing_sse2.c')
| -rw-r--r-- | src/3rdparty/libwebp/src/dsp/alpha_processing_sse2.c | 93 |
1 files changed, 79 insertions, 14 deletions
diff --git a/src/3rdparty/libwebp/src/dsp/alpha_processing_sse2.c b/src/3rdparty/libwebp/src/dsp/alpha_processing_sse2.c index 2871c56..aa0cc28 100644 --- a/src/3rdparty/libwebp/src/dsp/alpha_processing_sse2.c +++ b/src/3rdparty/libwebp/src/dsp/alpha_processing_sse2.c @@ -18,16 +18,16 @@ //------------------------------------------------------------------------------ -static int DispatchAlpha_SSE2(const uint8_t* alpha, int alpha_stride, - int width, int height, - uint8_t* dst, int dst_stride) { +static int DispatchAlpha_SSE2(const uint8_t* WEBP_RESTRICT alpha, + int alpha_stride, int width, int height, + uint8_t* WEBP_RESTRICT dst, int dst_stride) { // alpha_and stores an 'and' operation of all the alpha[] values. The final // value is not 0xff if any of the alpha[] is not equal to 0xff. uint32_t alpha_and = 0xff; int i, j; const __m128i zero = _mm_setzero_si128(); - const __m128i rgb_mask = _mm_set1_epi32(0xffffff00u); // to preserve RGB - const __m128i all_0xff = _mm_set_epi32(0, 0, ~0u, ~0u); + const __m128i rgb_mask = _mm_set1_epi32((int)0xffffff00); // to preserve RGB + const __m128i all_0xff = _mm_set_epi32(0, 0, ~0, ~0); __m128i all_alphas = all_0xff; // We must be able to access 3 extra bytes after the last written byte @@ -72,9 +72,10 @@ static int DispatchAlpha_SSE2(const uint8_t* alpha, int alpha_stride, return (alpha_and != 0xff); } -static void DispatchAlphaToGreen_SSE2(const uint8_t* alpha, int alpha_stride, - int width, int height, - uint32_t* dst, int dst_stride) { +static void DispatchAlphaToGreen_SSE2(const uint8_t* WEBP_RESTRICT alpha, + int alpha_stride, int width, int height, + uint32_t* WEBP_RESTRICT dst, + int dst_stride) { int i, j; const __m128i zero = _mm_setzero_si128(); const int limit = width & ~15; @@ -98,15 +99,15 @@ static void DispatchAlphaToGreen_SSE2(const uint8_t* alpha, int alpha_stride, } } -static int ExtractAlpha_SSE2(const uint8_t* argb, int argb_stride, +static int ExtractAlpha_SSE2(const uint8_t* WEBP_RESTRICT argb, int argb_stride, int width, int height, - uint8_t* alpha, int alpha_stride) { + uint8_t* WEBP_RESTRICT alpha, int alpha_stride) { // alpha_and stores an 'and' operation of all the alpha[] values. The final // value is not 0xff if any of the alpha[] is not equal to 0xff. uint32_t alpha_and = 0xff; int i, j; - const __m128i a_mask = _mm_set1_epi32(0xffu); // to preserve alpha - const __m128i all_0xff = _mm_set_epi32(0, 0, ~0u, ~0u); + const __m128i a_mask = _mm_set1_epi32(0xff); // to preserve alpha + const __m128i all_0xff = _mm_set_epi32(0, 0, ~0, ~0); __m128i all_alphas = all_0xff; // We must be able to access 3 extra bytes after the last written byte @@ -143,6 +144,46 @@ static int ExtractAlpha_SSE2(const uint8_t* argb, int argb_stride, return (alpha_and == 0xff); } +static void ExtractGreen_SSE2(const uint32_t* WEBP_RESTRICT argb, + uint8_t* WEBP_RESTRICT alpha, int size) { + int i; + const __m128i mask = _mm_set1_epi32(0xff); + const __m128i* src = (const __m128i*)argb; + + for (i = 0; i + 16 <= size; i += 16, src += 4) { + const __m128i a0 = _mm_loadu_si128(src + 0); + const __m128i a1 = _mm_loadu_si128(src + 1); + const __m128i a2 = _mm_loadu_si128(src + 2); + const __m128i a3 = _mm_loadu_si128(src + 3); + const __m128i b0 = _mm_srli_epi32(a0, 8); + const __m128i b1 = _mm_srli_epi32(a1, 8); + const __m128i b2 = _mm_srli_epi32(a2, 8); + const __m128i b3 = _mm_srli_epi32(a3, 8); + const __m128i c0 = _mm_and_si128(b0, mask); + const __m128i c1 = _mm_and_si128(b1, mask); + const __m128i c2 = _mm_and_si128(b2, mask); + const __m128i c3 = _mm_and_si128(b3, mask); + const __m128i d0 = _mm_packs_epi32(c0, c1); + const __m128i d1 = _mm_packs_epi32(c2, c3); + const __m128i e = _mm_packus_epi16(d0, d1); + // store + _mm_storeu_si128((__m128i*)&alpha[i], e); + } + if (i + 8 <= size) { + const __m128i a0 = _mm_loadu_si128(src + 0); + const __m128i a1 = _mm_loadu_si128(src + 1); + const __m128i b0 = _mm_srli_epi32(a0, 8); + const __m128i b1 = _mm_srli_epi32(a1, 8); + const __m128i c0 = _mm_and_si128(b0, mask); + const __m128i c1 = _mm_and_si128(b1, mask); + const __m128i d = _mm_packs_epi32(c0, c1); + const __m128i e = _mm_packus_epi16(d, d); + _mm_storel_epi64((__m128i*)&alpha[i], e); + i += 8; + } + for (; i < size; ++i) alpha[i] = argb[i] >> 8; +} + //------------------------------------------------------------------------------ // Non-dither premultiplied modes @@ -177,7 +218,7 @@ static int ExtractAlpha_SSE2(const uint8_t* argb, int argb_stride, static void ApplyAlphaMultiply_SSE2(uint8_t* rgba, int alpha_first, int w, int h, int stride) { const __m128i zero = _mm_setzero_si128(); - const __m128i kMult = _mm_set1_epi16(0x8081u); + const __m128i kMult = _mm_set1_epi16((short)0x8081); const __m128i kMask = _mm_set_epi16(0, 0xff, 0xff, 0, 0, 0xff, 0xff, 0); const int kSpan = 4; while (h-- > 0) { @@ -265,6 +306,27 @@ static int HasAlpha32b_SSE2(const uint8_t* src, int length) { return 0; } +static void AlphaReplace_SSE2(uint32_t* src, int length, uint32_t color) { + const __m128i m_color = _mm_set1_epi32((int)color); + const __m128i zero = _mm_setzero_si128(); + int i = 0; + for (; i + 8 <= length; i += 8) { + const __m128i a0 = _mm_loadu_si128((const __m128i*)(src + i + 0)); + const __m128i a1 = _mm_loadu_si128((const __m128i*)(src + i + 4)); + const __m128i b0 = _mm_srai_epi32(a0, 24); + const __m128i b1 = _mm_srai_epi32(a1, 24); + const __m128i c0 = _mm_cmpeq_epi32(b0, zero); + const __m128i c1 = _mm_cmpeq_epi32(b1, zero); + const __m128i d0 = _mm_and_si128(c0, m_color); + const __m128i d1 = _mm_and_si128(c1, m_color); + const __m128i e0 = _mm_andnot_si128(c0, a0); + const __m128i e1 = _mm_andnot_si128(c1, a1); + _mm_storeu_si128((__m128i*)(src + i + 0), _mm_or_si128(d0, e0)); + _mm_storeu_si128((__m128i*)(src + i + 4), _mm_or_si128(d1, e1)); + } + for (; i < length; ++i) if ((src[i] >> 24) == 0) src[i] = color; +} + // ----------------------------------------------------------------------------- // Apply alpha value to rows @@ -296,7 +358,8 @@ static void MultARGBRow_SSE2(uint32_t* const ptr, int width, int inverse) { if (width > 0) WebPMultARGBRow_C(ptr + x, width, inverse); } -static void MultRow_SSE2(uint8_t* const ptr, const uint8_t* const alpha, +static void MultRow_SSE2(uint8_t* WEBP_RESTRICT const ptr, + const uint8_t* WEBP_RESTRICT const alpha, int width, int inverse) { int x = 0; if (!inverse) { @@ -331,9 +394,11 @@ WEBP_TSAN_IGNORE_FUNCTION void WebPInitAlphaProcessingSSE2(void) { WebPDispatchAlpha = DispatchAlpha_SSE2; WebPDispatchAlphaToGreen = DispatchAlphaToGreen_SSE2; WebPExtractAlpha = ExtractAlpha_SSE2; + WebPExtractGreen = ExtractGreen_SSE2; WebPHasAlpha8b = HasAlpha8b_SSE2; WebPHasAlpha32b = HasAlpha32b_SSE2; + WebPAlphaReplace = AlphaReplace_SSE2; } #else // !WEBP_USE_SSE2 |