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New SSSE3 implementation of RGB5A3. About 40% improvement (less cycles) on the plain C version and 17% on the SSE2 version.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@6779 8ced0084-cf51-0410-be5f-012b33b47a6e
This commit is contained in:
xsacha
parent
bedc889a56
commit
f667c03d55
@ -1444,201 +1444,251 @@ PC_TexFormat TexDecoder_Decode_RGBA(u32 * dst, const u8 * src, int width, int he
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// This is the hard-coded 0xFF alpha constant that is ORed in place after the RGB are calculated
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// for the RGB555 case when (s[x] & 0x8000) is true for all pixels.
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const __m128i aVxff00 = _mm_set_epi32(0xFF000000L, 0xFF000000L, 0xFF000000L, 0xFF000000L);
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for (int y = 0; y < height; y += 4)
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for (int x = 0; x < width; x += 4)
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for (int iy = 0; iy < 4; iy++, src += 8)
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{
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u32 *newdst = dst+(y+iy)*width+x;
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const u16 *newsrc = (const u16*)src;
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// TODO: weak point
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const u16 val0 = Common::swap16(newsrc[0]);
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const u16 val1 = Common::swap16(newsrc[1]);
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const u16 val2 = Common::swap16(newsrc[2]);
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const u16 val3 = Common::swap16(newsrc[3]);
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// Need to check all 4 pixels' MSBs to ensure we can do data-parallelism:
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if (((val0 & 0x8000) & (val1 & 0x8000) & (val2 & 0x8000) & (val3 & 0x8000)) == 0x8000)
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#if _M_SSE >= 0x301
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// Produces a ~40% speed improvement over reference C implementation
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if (cpu_info.bSSE3)
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{
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// SSE2 case #1: all 4 pixels are in RGB555 and alpha = 0xFF.
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const __m128i valV = _mm_set_epi16(0, val3, 0, val2, 0, val1, 0, val0);
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// Swizzle bits: 00012345 -> 12345123
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//r0 = (((val0>>10) & 0x1f) << 3) | (((val0>>10) & 0x1f) >> 2);
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const __m128i tmprV = _mm_and_si128(_mm_srli_epi16(valV, 10), kMask_x1f);
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const __m128i rV = _mm_or_si128( _mm_slli_epi16(tmprV, 3), _mm_srli_epi16(tmprV, 2) );
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//newdst[0] = r0 | (_______) | (________) | (________);
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__m128i final = rV;
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//g0 = (((val0>>5 ) & 0x1f) << 3) | (((val0>>5 ) & 0x1f) >> 2);
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const __m128i tmpgV = _mm_and_si128(_mm_srli_epi16(valV, 5), kMask_x1f);
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const __m128i gV = _mm_or_si128( _mm_slli_epi16(tmpgV, 3), _mm_srli_epi16(tmpgV, 2) );
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//newdst[0] = r0 | (g0 << 8) | (________) | (________);
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final = _mm_or_si128(
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final,
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_mm_slli_epi32(gV, 8)
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);
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//b0 = (((val0 ) & 0x1f) << 3) | (((val0 ) & 0x1f) >> 2);
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const __m128i tmpbV = _mm_and_si128(valV, kMask_x1f);
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const __m128i bV = _mm_or_si128( _mm_slli_epi16(tmpbV, 3), _mm_srli_epi16(tmpbV, 2) );
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//newdst[0] = r0 | (g0 << 8) | (b0 << 16) | (________);
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final = _mm_or_si128(
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final,
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_mm_slli_epi32(bV, 16)
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);
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// Alphas are ORed in as a constant __m128i.
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//a0 = 0xFF;
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//newdst[0] = r0 | (g0 << 8) | (b0 << 16) | (a0 << 24);
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final = _mm_or_si128(
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final,
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aVxff00
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);
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// write the final result:
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_mm_storeu_si128( (__m128i*)newdst, final );
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}
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else if (((val0 & 0x8000) | (val1 & 0x8000) | (val2 & 0x8000) | (val3 & 0x8000)) == 0x0000)
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{
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// SSE2 case #2: all 4 pixels are in RGBA4443.
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const __m128i valV = _mm_set_epi16(0, val3, 0, val2, 0, val1, 0, val0);
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// Swizzle bits: 00001234 -> 12341234
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//r0 = (((val0>>8 ) & 0xf) << 4) | ((val0>>8 ) & 0xf);
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const __m128i tmprV = _mm_and_si128(_mm_srli_epi16(valV, 8), kMask_x0f);
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const __m128i rV = _mm_or_si128( _mm_slli_epi16(tmprV, 4), tmprV );
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//newdst[0] = r0 | (_______) | (________) | (________);
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__m128i final = rV;
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//g0 = (((val0>>4 ) & 0xf) << 4) | ((val0>>4 ) & 0xf);
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const __m128i tmpgV = _mm_and_si128(_mm_srli_epi16(valV, 4), kMask_x0f);
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const __m128i gV = _mm_or_si128( _mm_slli_epi16(tmpgV, 4), tmpgV );
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//newdst[0] = r0 | (g0 << 8) | (________) | (________);
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final = _mm_or_si128(
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final,
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_mm_slli_epi32(gV, 8)
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);
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//b0 = (((val0 ) & 0xf) << 4) | ((val0 ) & 0xf);
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const __m128i tmpbV = _mm_and_si128(valV, kMask_x0f);
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const __m128i bV = _mm_or_si128( _mm_slli_epi16(tmpbV, 4), tmpbV );
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//newdst[0] = r0 | (g0 << 8) | (b0 << 16) | (________);
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final = _mm_or_si128(
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final,
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_mm_slli_epi32(bV, 16)
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);
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//a0 = (((val0>>12) & 0x7) << 5) | (((val0>>12) & 0x7) << 2) | (((val0>>12) & 0x7) >> 1);
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const __m128i tmpaV = _mm_and_si128(_mm_srli_epi16(valV, 12), kMask_x07);
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const __m128i aV = _mm_or_si128(
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_mm_slli_epi16(tmpaV, 5),
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_mm_or_si128(
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_mm_slli_epi16(tmpaV, 2),
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_mm_srli_epi16(tmpaV, 1)
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)
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);
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//newdst[0] = r0 | (g0 << 8) | (b0 << 16) | (a0 << 24);
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final = _mm_or_si128(
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final,
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_mm_slli_epi32(aV, 24)
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);
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// write the final result:
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_mm_storeu_si128( (__m128i*)newdst, final );
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}
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else
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{
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// Horrific fallback case, but hey at least it's inlined :D
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// Maybe overkill? I see slight improvements on my machine as far as RDTSC
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// counts and it's all done in registers (on x64). No temp memory moves!
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int r0,g0,b0,a0;
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int r1,g1,b1,a1;
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int r2,g2,b2,a2;
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int r3,g3,b3,a3;
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// Normal operation, no parallelism to take advantage of:
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if (val0 & 0x8000)
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const __m128i mask = _mm_set_epi8(128,128,6,7,128,128,4,5,128,128,2,3,128,128,0,1);
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const __m128i valV = _mm_shuffle_epi8(_mm_loadl_epi64((const __m128i*)src),mask);
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int cmp = _mm_movemask_epi8(valV); //MSB: 0x2 = val0; 0x20=val1; 0x200 = val2; 0x2000=val3
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if ((cmp&0x2222)==0x2222) // SSSE3 case #1: all 4 pixels are in RGB555 and alpha = 0xFF.
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{
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// Swizzle bits: 00012345 -> 12345123
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r0 = (((val0>>10) & 0x1f) << 3) | (((val0>>10) & 0x1f) >> 2);
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g0 = (((val0>>5 ) & 0x1f) << 3) | (((val0>>5 ) & 0x1f) >> 2);
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b0 = (((val0 ) & 0x1f) << 3) | (((val0 ) & 0x1f) >> 2);
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a0 = 0xFF;
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//r0 = (((val0>>10) & 0x1f) << 3) | (((val0>>10) & 0x1f) >> 2);
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const __m128i tmprV = _mm_and_si128(_mm_srli_epi16(valV, 10), kMask_x1f);
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const __m128i rV = _mm_or_si128( _mm_slli_epi16(tmprV, 3), _mm_srli_epi16(tmprV, 2) );
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//g0 = (((val0>>5 ) & 0x1f) << 3) | (((val0>>5 ) & 0x1f) >> 2);
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const __m128i tmpgV = _mm_and_si128(_mm_srli_epi16(valV, 5), kMask_x1f);
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const __m128i gV = _mm_or_si128( _mm_slli_epi16(tmpgV, 3), _mm_srli_epi16(tmpgV, 2) );
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//b0 = (((val0 ) & 0x1f) << 3) | (((val0 ) & 0x1f) >> 2);
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const __m128i tmpbV = _mm_and_si128(valV, kMask_x1f);
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const __m128i bV = _mm_or_si128( _mm_slli_epi16(tmpbV, 3), _mm_srli_epi16(tmpbV, 2) );
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//newdst[0] = r0 | (g0 << 8) | (b0 << 16) | (a0 << 24);
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const __m128i final = _mm_or_si128( _mm_or_si128(rV,_mm_slli_epi32(gV, 8)),
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_mm_or_si128(_mm_slli_epi32(bV, 16), aVxff00));
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_mm_storeu_si128( (__m128i*)newdst, final );
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}
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else
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else if (!(cmp&0x2222)) // SSSE3 case #2: all 4 pixels are in RGBA4443.
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{
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a0 = (((val0>>12) & 0x7) << 5) | (((val0>>12) & 0x7) << 2) | (((val0>>12) & 0x7) >> 1);
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// Swizzle bits: 00001234 -> 12341234
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r0 = (((val0>>8 ) & 0xf) << 4) | ((val0>>8 ) & 0xf);
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g0 = (((val0>>4 ) & 0xf) << 4) | ((val0>>4 ) & 0xf);
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b0 = (((val0 ) & 0xf) << 4) | ((val0 ) & 0xf);
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}
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newdst[0] = r0 | (g0 << 8) | (b0 << 16) | (a0 << 24);
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if (val1 & 0x8000)
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{
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// Swizzle bits: 00012345 -> 12345123
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r1 = (((val1>>10) & 0x1f) << 3) | (((val1>>10) & 0x1f) >> 2);
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g1 = (((val1>>5 ) & 0x1f) << 3) | (((val1>>5 ) & 0x1f) >> 2);
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b1 = (((val1 ) & 0x1f) << 3) | (((val1 ) & 0x1f) >> 2);
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a1 = 0xFF;
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//r0 = (((val0>>8 ) & 0xf) << 4) | ((val0>>8 ) & 0xf);
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const __m128i tmprV = _mm_and_si128(_mm_srli_epi16(valV, 8), kMask_x0f);
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const __m128i rV = _mm_or_si128( _mm_slli_epi16(tmprV, 4), tmprV );
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//g0 = (((val0>>4 ) & 0xf) << 4) | ((val0>>4 ) & 0xf);
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const __m128i tmpgV = _mm_and_si128(_mm_srli_epi16(valV, 4), kMask_x0f);
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const __m128i gV = _mm_or_si128( _mm_slli_epi16(tmpgV, 4), tmpgV );
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//b0 = (((val0 ) & 0xf) << 4) | ((val0 ) & 0xf);
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const __m128i tmpbV = _mm_and_si128(valV, kMask_x0f);
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const __m128i bV = _mm_or_si128( _mm_slli_epi16(tmpbV, 4), tmpbV );
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//a0 = (((val0>>12) & 0x7) << 5) | (((val0>>12) & 0x7) << 2) | (((val0>>12) & 0x7) >> 1);
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const __m128i tmpaV = _mm_and_si128(_mm_srli_epi16(valV, 12), kMask_x07);
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const __m128i aV = _mm_or_si128(
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_mm_slli_epi16(tmpaV, 5),
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_mm_or_si128(
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_mm_slli_epi16(tmpaV, 2),
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_mm_srli_epi16(tmpaV, 1)
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)
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);
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//newdst[0] = r0 | (g0 << 8) | (b0 << 16) | (a0 << 24);
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const __m128i final = _mm_or_si128( _mm_or_si128(rV,_mm_slli_epi32(gV, 8)),
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_mm_or_si128(_mm_slli_epi32(bV, 16), _mm_slli_epi32(aV, 24)));
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_mm_storeu_si128( (__m128i*)newdst, final );
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}
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else
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{
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a1 = (((val1>>12) & 0x7) << 5) | (((val1>>12) & 0x7) << 2) | (((val1>>12) & 0x7) >> 1);
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r1 = (((val1>>8 ) & 0xf) << 4) | ((val1>>8 ) & 0xf);
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g1 = (((val1>>4 ) & 0xf) << 4) | ((val1>>4 ) & 0xf);
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b1 = (((val1 ) & 0xf) << 4) | ((val1 ) & 0xf);
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// TODO: Vectorise (Either 4-way branch or do both and select is better than this)
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unsigned __int32 *vals = (unsigned __int32*) &valV;
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int r,g,b,a;
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for (int i=0; i < 4; ++i)
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{
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if (vals[i] & 0x8000)
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{
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// Swizzle bits: 00012345 -> 12345123
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r = (((vals[i]>>10) & 0x1f) << 3) | (((vals[i]>>10) & 0x1f) >> 2);
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g = (((vals[i]>>5 ) & 0x1f) << 3) | (((vals[i]>>5 ) & 0x1f) >> 2);
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b = (((vals[i] ) & 0x1f) << 3) | (((vals[i] ) & 0x1f) >> 2);
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a = 0xFF;
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}
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else
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{
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a = (((vals[i]>>12) & 0x7) << 5) | (((vals[i]>>12) & 0x7) << 2) | (((vals[i]>>12) & 0x7) >> 1);
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// Swizzle bits: 00001234 -> 12341234
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r = (((vals[i]>>8 ) & 0xf) << 4) | ((vals[i]>>8 ) & 0xf);
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g = (((vals[i]>>4 ) & 0xf) << 4) | ((vals[i]>>4 ) & 0xf);
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b = (((vals[i] ) & 0xf) << 4) | ((vals[i] ) & 0xf);
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}
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newdst[i] = r | (g << 8) | (b << 16) | (a << 24);
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}
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}
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newdst[1] = r1 | (g1 << 8) | (b1 << 16) | (a1 << 24);
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} else
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#endif
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{
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const u16 *newsrc = (const u16*)src;
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if (val2 & 0x8000)
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// TODO: weak point
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const u16 val0 = Common::swap16(newsrc[0]);
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const u16 val1 = Common::swap16(newsrc[1]);
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const u16 val2 = Common::swap16(newsrc[2]);
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const u16 val3 = Common::swap16(newsrc[3]);
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// Need to check all 4 pixels' MSBs to ensure we can do data-parallelism:
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if (((val0 & 0x8000) & (val1 & 0x8000) & (val2 & 0x8000) & (val3 & 0x8000)) == 0x8000)
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{
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// SSE2 case #1: all 4 pixels are in RGB555 and alpha = 0xFF.
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const __m128i valV = _mm_set_epi16(0, val3, 0, val2, 0, val1, 0, val0);
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// Swizzle bits: 00012345 -> 12345123
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r2 = (((val2>>10) & 0x1f) << 3) | (((val2>>10) & 0x1f) >> 2);
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g2 = (((val2>>5 ) & 0x1f) << 3) | (((val2>>5 ) & 0x1f) >> 2);
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b2 = (((val2 ) & 0x1f) << 3) | (((val2 ) & 0x1f) >> 2);
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a2 = 0xFF;
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//r0 = (((val0>>10) & 0x1f) << 3) | (((val0>>10) & 0x1f) >> 2);
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const __m128i tmprV = _mm_and_si128(_mm_srli_epi16(valV, 10), kMask_x1f);
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const __m128i rV = _mm_or_si128( _mm_slli_epi16(tmprV, 3), _mm_srli_epi16(tmprV, 2) );
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//g0 = (((val0>>5 ) & 0x1f) << 3) | (((val0>>5 ) & 0x1f) >> 2);
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const __m128i tmpgV = _mm_and_si128(_mm_srli_epi16(valV, 5), kMask_x1f);
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const __m128i gV = _mm_or_si128( _mm_slli_epi16(tmpgV, 3), _mm_srli_epi16(tmpgV, 2) );
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//b0 = (((val0 ) & 0x1f) << 3) | (((val0 ) & 0x1f) >> 2);
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const __m128i tmpbV = _mm_and_si128(valV, kMask_x1f);
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const __m128i bV = _mm_or_si128( _mm_slli_epi16(tmpbV, 3), _mm_srli_epi16(tmpbV, 2) );
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//newdst[0] = r0 | (g0 << 8) | (b0 << 16) | (a0 << 24);
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const __m128i final = _mm_or_si128( _mm_or_si128(rV,_mm_slli_epi32(gV, 8)),
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_mm_or_si128(_mm_slli_epi32(bV, 16), aVxff00));
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// write the final result:
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_mm_storeu_si128( (__m128i*)newdst, final );
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}
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else if (((val0 & 0x8000) | (val1 & 0x8000) | (val2 & 0x8000) | (val3 & 0x8000)) == 0x0000)
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{
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// SSE2 case #2: all 4 pixels are in RGBA4443.
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const __m128i valV = _mm_set_epi16(0, val3, 0, val2, 0, val1, 0, val0);
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// Swizzle bits: 00001234 -> 12341234
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//r0 = (((val0>>8 ) & 0xf) << 4) | ((val0>>8 ) & 0xf);
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const __m128i tmprV = _mm_and_si128(_mm_srli_epi16(valV, 8), kMask_x0f);
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const __m128i rV = _mm_or_si128( _mm_slli_epi16(tmprV, 4), tmprV );
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//g0 = (((val0>>4 ) & 0xf) << 4) | ((val0>>4 ) & 0xf);
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const __m128i tmpgV = _mm_and_si128(_mm_srli_epi16(valV, 4), kMask_x0f);
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const __m128i gV = _mm_or_si128( _mm_slli_epi16(tmpgV, 4), tmpgV );
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//b0 = (((val0 ) & 0xf) << 4) | ((val0 ) & 0xf);
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const __m128i tmpbV = _mm_and_si128(valV, kMask_x0f);
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const __m128i bV = _mm_or_si128( _mm_slli_epi16(tmpbV, 4), tmpbV );
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//a0 = (((val0>>12) & 0x7) << 5) | (((val0>>12) & 0x7) << 2) | (((val0>>12) & 0x7) >> 1);
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const __m128i tmpaV = _mm_and_si128(_mm_srli_epi16(valV, 12), kMask_x07);
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const __m128i aV = _mm_or_si128(
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_mm_slli_epi16(tmpaV, 5),
|
||||
_mm_or_si128(
|
||||
_mm_slli_epi16(tmpaV, 2),
|
||||
_mm_srli_epi16(tmpaV, 1)
|
||||
)
|
||||
);
|
||||
|
||||
//newdst[0] = r0 | (g0 << 8) | (b0 << 16) | (a0 << 24);
|
||||
const __m128i final = _mm_or_si128( _mm_or_si128(rV,_mm_slli_epi32(gV, 8)),
|
||||
_mm_or_si128(_mm_slli_epi32(bV, 16), _mm_slli_epi32(aV, 24)));
|
||||
|
||||
// write the final result:
|
||||
_mm_storeu_si128( (__m128i*)newdst, final );
|
||||
}
|
||||
else
|
||||
{
|
||||
a2 = (((val2>>12) & 0x7) << 5) | (((val2>>12) & 0x7) << 2) | (((val2>>12) & 0x7) >> 1);
|
||||
r2 = (((val2>>8 ) & 0xf) << 4) | ((val2>>8 ) & 0xf);
|
||||
g2 = (((val2>>4 ) & 0xf) << 4) | ((val2>>4 ) & 0xf);
|
||||
b2 = (((val2 ) & 0xf) << 4) | ((val2 ) & 0xf);
|
||||
}
|
||||
newdst[2] = r2 | (g2 << 8) | (b2 << 16) | (a2 << 24);
|
||||
// Horrific fallback case, but hey at least it's inlined :D
|
||||
// Maybe overkill? I see slight improvements on my machine as far as RDTSC
|
||||
// counts and it's all done in registers (on x64). No temp memory moves!
|
||||
int r0,g0,b0,a0;
|
||||
int r1,g1,b1,a1;
|
||||
int r2,g2,b2,a2;
|
||||
int r3,g3,b3,a3;
|
||||
|
||||
if (val3 & 0x8000)
|
||||
{
|
||||
// Swizzle bits: 00012345 -> 12345123
|
||||
r3 = (((val3>>10) & 0x1f) << 3) | (((val3>>10) & 0x1f) >> 2);
|
||||
g3 = (((val3>>5 ) & 0x1f) << 3) | (((val3>>5 ) & 0x1f) >> 2);
|
||||
b3 = (((val3 ) & 0x1f) << 3) | (((val3 ) & 0x1f) >> 2);
|
||||
a3 = 0xFF;
|
||||
// Normal operation, no parallelism to take advantage of:
|
||||
if (val0 & 0x8000)
|
||||
{
|
||||
// Swizzle bits: 00012345 -> 12345123
|
||||
r0 = (((val0>>10) & 0x1f) << 3) | (((val0>>10) & 0x1f) >> 2);
|
||||
g0 = (((val0>>5 ) & 0x1f) << 3) | (((val0>>5 ) & 0x1f) >> 2);
|
||||
b0 = (((val0 ) & 0x1f) << 3) | (((val0 ) & 0x1f) >> 2);
|
||||
a0 = 0xFF;
|
||||
}
|
||||
else
|
||||
{
|
||||
a0 = (((val0>>12) & 0x7) << 5) | (((val0>>12) & 0x7) << 2) | (((val0>>12) & 0x7) >> 1);
|
||||
// Swizzle bits: 00001234 -> 12341234
|
||||
r0 = (((val0>>8 ) & 0xf) << 4) | ((val0>>8 ) & 0xf);
|
||||
g0 = (((val0>>4 ) & 0xf) << 4) | ((val0>>4 ) & 0xf);
|
||||
b0 = (((val0 ) & 0xf) << 4) | ((val0 ) & 0xf);
|
||||
}
|
||||
newdst[0] = r0 | (g0 << 8) | (b0 << 16) | (a0 << 24);
|
||||
|
||||
if (val1 & 0x8000)
|
||||
{
|
||||
// Swizzle bits: 00012345 -> 12345123
|
||||
r1 = (((val1>>10) & 0x1f) << 3) | (((val1>>10) & 0x1f) >> 2);
|
||||
g1 = (((val1>>5 ) & 0x1f) << 3) | (((val1>>5 ) & 0x1f) >> 2);
|
||||
b1 = (((val1 ) & 0x1f) << 3) | (((val1 ) & 0x1f) >> 2);
|
||||
a1 = 0xFF;
|
||||
}
|
||||
else
|
||||
{
|
||||
a1 = (((val1>>12) & 0x7) << 5) | (((val1>>12) & 0x7) << 2) | (((val1>>12) & 0x7) >> 1);
|
||||
r1 = (((val1>>8 ) & 0xf) << 4) | ((val1>>8 ) & 0xf);
|
||||
g1 = (((val1>>4 ) & 0xf) << 4) | ((val1>>4 ) & 0xf);
|
||||
b1 = (((val1 ) & 0xf) << 4) | ((val1 ) & 0xf);
|
||||
}
|
||||
newdst[1] = r1 | (g1 << 8) | (b1 << 16) | (a1 << 24);
|
||||
|
||||
if (val2 & 0x8000)
|
||||
{
|
||||
// Swizzle bits: 00012345 -> 12345123
|
||||
r2 = (((val2>>10) & 0x1f) << 3) | (((val2>>10) & 0x1f) >> 2);
|
||||
g2 = (((val2>>5 ) & 0x1f) << 3) | (((val2>>5 ) & 0x1f) >> 2);
|
||||
b2 = (((val2 ) & 0x1f) << 3) | (((val2 ) & 0x1f) >> 2);
|
||||
a2 = 0xFF;
|
||||
}
|
||||
else
|
||||
{
|
||||
a2 = (((val2>>12) & 0x7) << 5) | (((val2>>12) & 0x7) << 2) | (((val2>>12) & 0x7) >> 1);
|
||||
r2 = (((val2>>8 ) & 0xf) << 4) | ((val2>>8 ) & 0xf);
|
||||
g2 = (((val2>>4 ) & 0xf) << 4) | ((val2>>4 ) & 0xf);
|
||||
b2 = (((val2 ) & 0xf) << 4) | ((val2 ) & 0xf);
|
||||
}
|
||||
newdst[2] = r2 | (g2 << 8) | (b2 << 16) | (a2 << 24);
|
||||
|
||||
if (val3 & 0x8000)
|
||||
{
|
||||
// Swizzle bits: 00012345 -> 12345123
|
||||
r3 = (((val3>>10) & 0x1f) << 3) | (((val3>>10) & 0x1f) >> 2);
|
||||
g3 = (((val3>>5 ) & 0x1f) << 3) | (((val3>>5 ) & 0x1f) >> 2);
|
||||
b3 = (((val3 ) & 0x1f) << 3) | (((val3 ) & 0x1f) >> 2);
|
||||
a3 = 0xFF;
|
||||
}
|
||||
else
|
||||
{
|
||||
a3 = (((val3>>12) & 0x7) << 5) | (((val3>>12) & 0x7) << 2) | (((val3>>12) & 0x7) >> 1);
|
||||
r3 = (((val3>>8 ) & 0xf) << 4) | ((val3>>8 ) & 0xf);
|
||||
g3 = (((val3>>4 ) & 0xf) << 4) | ((val3>>4 ) & 0xf);
|
||||
b3 = (((val3 ) & 0xf) << 4) | ((val3 ) & 0xf);
|
||||
}
|
||||
newdst[3] = r3 | (g3 << 8) | (b3 << 16) | (a3 << 24);
|
||||
}
|
||||
else
|
||||
{
|
||||
a3 = (((val3>>12) & 0x7) << 5) | (((val3>>12) & 0x7) << 2) | (((val3>>12) & 0x7) >> 1);
|
||||
r3 = (((val3>>8 ) & 0xf) << 4) | ((val3>>8 ) & 0xf);
|
||||
g3 = (((val3>>4 ) & 0xf) << 4) | ((val3>>4 ) & 0xf);
|
||||
b3 = (((val3 ) & 0xf) << 4) | ((val3 ) & 0xf);
|
||||
}
|
||||
newdst[3] = r3 | (g3 << 8) | (b3 << 16) | (a3 << 24);
|
||||
}
|
||||
}
|
||||
#if 0
|
||||
|
||||
Loading…
Reference in New Issue
Block a user