Changeset - r21169:98d87aed29c1
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rubidium - 11 years ago 2014-01-13 18:05:47
rubidium@openttd.org
(svn r26255) -Codechange: improve performance of brightness adjustment (MJP)
4 files changed with 21 insertions and 22 deletions:
src/blitter/32bpp_sse2.cpp
5
15
src/blitter/32bpp_sse2.hpp
6
src/blitter/32bpp_sse4.cpp
5
7
src/blitter/32bpp_sse4.hpp
5
0 comments (0 inline, 0 general)
src/blitter/32bpp_sse2.cpp
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Show inline comments
 
@@ -294,7 +294,7 @@ inline Colour Blitter_32bppSSE2::AdjustB
 
}
 

			




	
	
	
		
 
IGNORE_UNINITIALIZED_WARNING_START

			




	
	
	
		
 
/* static */ Colour Blitter_32bppSSE2::ReallyAdjustBrightness(Colour colour, uint8 brightness)

			




	
	
	
		
 
Colour Blitter_32bppSSE2::ReallyAdjustBrightness(Colour colour, uint8 brightness)

			




	
	
	
		
 
{

			




	
	
	
		
 
	uint64 c16 = colour.b | (uint64) colour.g << 16 | (uint64) colour.r << 32;

			




	
	
	
		
 
	c16 *= brightness;

			




	
	
		
 
@@ -304,24 +304,14 @@ IGNORE_UNINITIALIZED_WARNING_START

			




	
	
	
		
 

			




	
	
	
		
 
	/* Sum overbright (maximum for each rgb is 508, 9 bits, -255 is changed in -256 so we just have to take the 8 lower bits into account). */

			




	
	
	
		
 
	c16_ob = (((c16_ob >> (8 + 7)) & 0x0100010001) * 0xFF) & c16;

			




	
	
	
		
 
	uint64 ob = (uint16) c16_ob + (uint16) (c16_ob >> 16) + (uint16) (c16_ob >> 32);

			




	
	
	
		
 
	const uint ob = ((uint16) c16_ob + (uint16) (c16_ob >> 16) + (uint16) (c16_ob >> 32)) / 2;

			




	
	
	
		
 

			




	
	
	
		
 
	const uint32 alpha32 = colour.data & 0xFF000000;

			




	
	
	
		
 
	__m128i ret;

			




	
	
	
		
 
#ifdef _SQ64

			




	
	
	
		
 
	ret = _mm_cvtsi64_si128(c16);

			




	
	
	
		
 
#else

			




	
	
	
		
 
	INSR64(c16, ret, 0);

			




	
	
	
		
 
#endif

			




	
	
	
		
 
	LOAD64(c16, ret);

			




	
	
	
		
 
	if (ob != 0) {

			




	
	
	
		
 
		/* Reduce overbright strength. */

			




	
	
	
		
 
		ob /= 2;

			




	
	
	
		
 
		__m128i ob128;

			




	
	
	
		
 
#ifdef _SQ64

			




	
	
	
		
 
		ob128 = _mm_cvtsi64_si128(ob | ob << 16 | ob << 32);

			




	
	
	
		
 
#else

			




	
	
	
		
 
		INSR64(ob | ob << 16 | ob << 32, ob128, 0);

			




	
	
	
		
 
#endif

			




	
	
	
		
 
		__m128i ob128 = _mm_cvtsi32_si128(ob);

			




	
	
	
		
 
		ob128 = _mm_shufflelo_epi16(ob128, 0xC0);

			




	
	
	
		
 
		__m128i white = OVERBRIGHT_VALUE_MASK;

			




	
	
	
		
 
		__m128i c128 = ret;

			




	
	
	
		
 
		ret = _mm_subs_epu16(white, c128); /* PSUBUSW,   (255 - rgb) */

			




        

    


    
    

    

        

                

                    src/blitter/32bpp_sse2.hpp
                

                

                  
                      
                        

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@@ -54,6 +54,12 @@ typedef union ALIGN(16) um128i {

			




	
	
	
		
 
}

			




	
	
	
		
 
#define INSR64(m_val, m_into, m_rank) (*(um128i*) &m_into).m128i_u64[m_rank] = (m_val)

			




	
	
	
		
 

			




	
	
	
		
 
#ifdef _SQ64

			




	
	
	
		
 
	#define LOAD64(m_val, m_into) m_into = _mm_cvtsi64_si128(m_val);

			




	
	
	
		
 
#else

			




	
	
	
		
 
	#define LOAD64(m_val, m_into) INSR64(m_val, m_into, 0)

			




	
	
	
		
 
#endif

			




	
	
	
		
 

			




	
	
	
		
 
/* 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 */ \

			




        

    


    
    

    

        

                

                    src/blitter/32bpp_sse4.cpp
                

                

                  
                      
                        

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@@ -232,7 +232,7 @@ inline Colour Blitter_32bppSSE4::AdjustB

			




	
	
	
		
 
}

			




	
	
	
		
 

			




	
	
	
		
 
IGNORE_UNINITIALIZED_WARNING_START

			




	
	
	
		
 
/* static */ Colour Blitter_32bppSSE4::ReallyAdjustBrightness(Colour colour, uint8 brightness)

			




	
	
	
		
 
Colour Blitter_32bppSSE4::ReallyAdjustBrightness(Colour colour, uint8 brightness)

			




	
	
	
		
 
{

			




	
	
	
		
 
	uint64 c16 = colour.b | (uint64) colour.g << 16 | (uint64) colour.r << 32;

			




	
	
	
		
 
	c16 *= brightness;

			




	
	
		
 
@@ -242,16 +242,14 @@ IGNORE_UNINITIALIZED_WARNING_START

			




	
	
	
		
 

			




	
	
	
		
 
	/* Sum overbright (maximum for each rgb is 508, 9 bits, -255 is changed in -256 so we just have to take the 8 lower bits into account). */

			




	
	
	
		
 
	c16_ob = (((c16_ob >> (8 + 7)) & 0x0100010001) * 0xFF) & c16;

			




	
	
	
		
 
	uint64 ob = (uint16) c16_ob + (uint16) (c16_ob >> 16) + (uint16) (c16_ob >> 32);

			




	
	
	
		
 
	const uint ob = ((uint16) c16_ob + (uint16) (c16_ob >> 16) + (uint16) (c16_ob >> 32)) / 2;

			




	
	
	
		
 

			




	
	
	
		
 
	const uint32 alpha32 = colour.data & 0xFF000000;

			




	
	
	
		
 
	__m128i ret;

			




	
	
	
		
 
	INSR64(c16, ret, 0);

			




	
	
	
		
 
	LOAD64(c16, ret);

			




	
	
	
		
 
	if (ob != 0) {

			




	
	
	
		
 
		/* Reduce overbright strength. */

			




	
	
	
		
 
		ob /= 2;

			




	
	
	
		
 
		__m128i ob128;

			




	
	
	
		
 
		INSR64(ob | ob << 16 | ob << 32, ob128, 0);

			




	
	
	
		
 
		__m128i ob128 = _mm_cvtsi32_si128(ob);

			




	
	
	
		
 
		ob128 = _mm_shufflelo_epi16(ob128, 0xC0);

			




	
	
	
		
 
		__m128i white = OVERBRIGHT_VALUE_MASK;

			




	
	
	
		
 
		__m128i c128 = ret;

			




	
	
	
		
 
		ret = _mm_subs_epu16(white, c128); /* PSUBUSW,   (255 - rgb) */

			




        

    


    
    

    

        

                

                    src/blitter/32bpp_sse4.hpp
                

                

                  
                      
                        

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@@ -35,6 +35,11 @@ IGNORE_UNINITIALIZED_WARNING_START

			




	
	
	
		
 
		(*(um128i*) &m_into).m128i = _mm_insert_epi32((*(um128i*) &m_into).m128i, v.u32.low, (m_rank)*2); \

			




	
	
	
		
 
		(*(um128i*) &m_into).m128i = _mm_insert_epi32((*(um128i*) &m_into).m128i, v.u32.high, (m_rank)*2 + 1); \

			




	
	
	
		
 
	}

			




	
	
	
		
 

			




	
	
	
		
 
	#undef LOAD64

			




	
	
	
		
 
	#define LOAD64(m_val, m_into) \

			




	
	
	
		
 
		m_into = _mm_cvtsi32_si128(m_val); \

			




	
	
	
		
 
		INSR32((m_val) >> 32, m_into, 1);

			




	
	
	
		
 
#endif

			




	
	
	
		
 
IGNORE_UNINITIALIZED_WARNING_STOP

			




	
	
	
		
 

			




        

    



    


    



    



      

      





    
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