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Diffstat (limited to 'src/blitter/32bpp_ssse3.hpp')
| -rw-r--r-- | src/blitter/32bpp_ssse3.hpp | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/blitter/32bpp_ssse3.hpp b/src/blitter/32bpp_ssse3.hpp new file mode 100644 index 000000000..7ea1fbd8b --- /dev/null +++ b/src/blitter/32bpp_ssse3.hpp @@ -0,0 +1,94 @@ +/* $Id$ */ + +/* + * This file is part of OpenTTD. + * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. + * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>. + */ + +/** @file 32bpp_ssse3.hpp SSSE3 32 bpp blitter. */ + +#ifndef BLITTER_32BPP_SSSE3_HPP +#define BLITTER_32BPP_SSSE3_HPP + +#ifdef WITH_SSE + +#include "32bpp_sse2.hpp" +#include "tmmintrin.h" + +/* Alpha blend 2 pixels. */ +#undef ALPHA_BLEND_2 +#define ALPHA_BLEND_2(m_pack_mask) { \ + __m128i srcAB = _mm_unpacklo_epi8(srcABCD, _mm_setzero_si128()); /* PUNPCKLBW, expand each uint8 into uint16 */ \ + __m128i dstAB = _mm_unpacklo_epi8(dstABCD, _mm_setzero_si128()); \ + \ + __m128i alphaAB = _mm_cmpgt_epi16(srcAB, _mm_setzero_si128()); /* PCMPGTW, if (alpha > 0) a++; */ \ + alphaAB = _mm_srli_epi16(alphaAB, 15); \ + alphaAB = _mm_add_epi16(alphaAB, srcAB); \ + alphaAB = _mm_shuffle_epi8(alphaAB, a_cm); /* PSHUFB, put alpha in front of each rgb */ \ + \ + srcAB = _mm_sub_epi16(srcAB, dstAB); /* PSUBW, (r - Cr) */ \ + srcAB = _mm_mullo_epi16(srcAB, alphaAB); /* PMULLW, a*(r - Cr) */ \ + srcAB = _mm_srli_epi16(srcAB, 8); /* PSRLW, a*(r - Cr)/256 */ \ + srcAB = _mm_add_epi16(srcAB, dstAB); /* PADDW, a*(r - Cr)/256 + Cr */ \ + srcABCD = _mm_shuffle_epi8(srcAB, m_pack_mask); /* PSHUFB, pack 2 Colour (without saturation) */ \ +} + +/* Adjust brightness of 2 pixels. */ +#define ADJUST_BRIGHTNESS_2(colourX2, brightnessX2) \ + /* The following dataflow differs from the one of AdjustBrightness() only for alpha. + * In order to keep alpha in colAB, insert a 1 in a unused brightness byte (a*1->a). + * OK, not a 1 but DEFAULT_BRIGHTNESS to compensate the div. + */ \ + brightnessX2 &= 0xFF00FF00; \ + brightnessX2 += DEFAULT_BRIGHTNESS; \ + \ + __m128i zero = _mm_setzero_si128(); \ + __m128i colAB = _mm_unpacklo_epi8(colourX2, zero); \ + \ + __m128i briAB; \ + INSR64(brightnessX2, briAB, 0); \ + briAB = _mm_shuffle_epi8(briAB, briAB_cm); /* DEFAULT_BRIGHTNESS in 0, 0x00 in 2. */ \ + colAB = _mm_mullo_epi16(colAB, briAB); \ + __m128i colAB_ob = _mm_srli_epi16(colAB, 8+7); \ + colAB = _mm_srli_epi16(colAB, 7); \ + \ + /* Sum overbright. + * Maximum for each rgb is 508 => 9 bits. The highest bit tells if there is overbright. + * -255 is changed in -256 so we just have to take the 8 lower bits into account. + */ \ + colAB = _mm_and_si128(colAB, div_cleaner); \ + colAB_ob = _mm_and_si128(colAB_ob, ob_check); \ + colAB_ob = _mm_mullo_epi16(colAB_ob, ob_mask); \ + colAB_ob = _mm_and_si128(colAB_ob, colAB); \ + __m128i obAB = _mm_hadd_epi16(_mm_hadd_epi16(colAB_ob, zero), zero); \ + \ + obAB = _mm_srli_epi16(obAB, 1); /* Reduce overbright strength. */ \ + obAB = _mm_shuffle_epi8(obAB, ob_cm); \ + __m128i retAB = ob_mask; /* ob_mask is equal to white. */ \ + retAB = _mm_subs_epu16(retAB, colAB); /* (255 - rgb) */ \ + retAB = _mm_mullo_epi16(retAB, obAB); /* ob*(255 - rgb) */ \ + retAB = _mm_srli_epi16(retAB, 8); /* ob*(255 - rgb)/256 */ \ + retAB = _mm_add_epi16(retAB, colAB); /* ob*(255 - rgb)/256 + rgb */ \ + \ + colourX2 = _mm_packus_epi16(retAB, retAB); + +/** The SSSE3 32 bpp blitter (without palette animation). */ +class Blitter_32bppSSSE3 : public Blitter_32bppSSE2 { +public: + /* virtual */ void Draw(Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom); + template <BlitterMode mode, ReadMode read_mode, BlockType bt_last> + void Draw(const Blitter::BlitterParams *bp, ZoomLevel zoom); + /* virtual */ const char *GetName() { return "32bpp-ssse3"; } +}; + +/** Factory for the SSSE3 32 bpp blitter (without palette animation). */ +class FBlitter_32bppSSSE3: public BlitterFactory { +public: + FBlitter_32bppSSSE3() : BlitterFactory("32bpp-ssse3", "32bpp SSSE3 Blitter (no palette animation)", HasCPUIDFlag(1, 2, 9)) {} + /* virtual */ Blitter *CreateInstance() { return new Blitter_32bppSSSE3(); } +}; + +#endif /* WITH_SSE */ +#endif /* BLITTER_32BPP_SSSE3_HPP */ |