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(svn r26249) -Codechange: simplify/cleanup ALPHA_BLEND macro (MJP)

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rubidium
2014-01-13 17:57:30 +00:00
parent 31c6e33878
commit 76661f2c56
6 changed files with 49 additions and 52 deletions
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28
src/blitter/32bpp_sse2.hpp
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@@ -46,13 +46,23 @@ typedef union ALIGN(16) um128i {
#define OVERBRIGHT_CONTROL_MASK _mm_setr_epi8( 0, 1, 0, 1, 0, 1, 7, 7, 2, 3, 2, 3, 2, 3, 7, 7)
#define TRANSPARENT_NOM_BASE _mm_setr_epi16(256, 256, 256, 256, 256, 256, 256, 256)
#define EXTR32(from, rank) (*(um128i*) &from).m128i_u32[rank]
#define EXTR64(from, rank) (*(um128i*) &from).m128i_u64[rank]
#define INSR32(val, into, rank) { \
(*(um128i*) &into).m128i = _mm_insert_epi16((*(um128i*) &into).m128i, val, (rank)*2); \
(*(um128i*) &into).m128i = _mm_insert_epi16((*(um128i*) &into).m128i, (val) >> 16, (rank)*2 + 1); \
#define EXTR32(m_from, m_rank) (*(um128i*) &m_from).m128i_u32[m_rank]
#define EXTR64(m_from, m_rank) (*(um128i*) &m_from).m128i_u64[m_rank]
#define INSR32(m_val, m_into, m_rank) { \
(*(um128i*) &m_into).m128i = _mm_insert_epi16((*(um128i*) &m_into).m128i, m_val, (m_rank)*2); \
(*(um128i*) &m_into).m128i = _mm_insert_epi16((*(um128i*) &m_into).m128i, (m_val) >> 16, (m_rank)*2 + 1); \
}
#define INSR64(val, into, rank) (*(um128i*) &into).m128i_u64[rank] = (val)
#define INSR64(m_val, m_into, m_rank) (*(um128i*) &m_into).m128i_u64[m_rank] = (m_val)
/* PUT_ALPHA_IN_FRONT_OF_RGB is redefined in 32bpp_ssse3.hpp. */
#define PUT_ALPHA_IN_FRONT_OF_RGB(m_from, m_into) \
m_into = _mm_shufflelo_epi16(m_from, 0x3F); /* PSHUFLW, put alpha1 in front of each rgb1 */ \
m_into = _mm_shufflehi_epi16(m_into, 0x3F); /* PSHUFHW, put alpha2 in front of each rgb2 */
/* PACK_AB_WITHOUT_SATURATION is redefined in 32bpp_ssse3.hpp. */
#define PACK_AB_WITHOUT_SATURATION(m_from, m_into) \
m_from = _mm_and_si128(m_from, clear_hi); /* PAND, wipe high bytes to keep low bytes when packing */ \
m_into = _mm_packus_epi16(m_from, m_from); /* PACKUSWB, pack 2 colours (with saturation) */
/* Alpha blend 2 pixels. */
#define ALPHA_BLEND_2() { \
@@ -62,15 +72,13 @@ typedef union ALIGN(16) um128i {
__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_shufflelo_epi16(alphaAB, 0x3F); /* PSHUFLW, put alpha1 in front of each rgb1 */ \
alphaAB = _mm_shufflehi_epi16(alphaAB, 0x3F); /* PSHUFHW, put alpha2 in front of each rgb2 */ \
PUT_ALPHA_IN_FRONT_OF_RGB(alphaAB, alphaAB); \
\
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 */ \
srcAB = _mm_and_si128(srcAB, clear_hi); /* PAND, wipe high bytes to keep low bytes when packing */ \
srcABCD = _mm_packus_epi16(srcAB, srcAB); /* PACKUSWB, pack 2 colours (with saturation) */ \
PACK_AB_WITHOUT_SATURATION(srcAB, srcABCD); \
}
/** Base methods for 32bpp SSE blitters. */