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Lines 45-50
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.type shade_ximage_16_mmx,@function |
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.type shade_ximage_16_mmx,@function |
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.global shade_ximage_32_mmx |
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.global shade_ximage_32_mmx |
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.type shade_ximage_32_mmx,@function |
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.type shade_ximage_32_mmx,@function |
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.global shade_ximage_24_mmx |
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.type shade_ximage_24_mmx,@function |
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.bss |
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.bss |
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.text |
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.text |
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Lines 483-486
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| 483 |
3: |
485 |
3: |
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LEAVE |
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LEAVE |
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shade_ximage_24_mmx: |
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ENTER |
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leal (%esi, %ebx, 3), %esi |
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negl %ebx |
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jz 3f |
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movd rm, %mm4 |
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movd gm, %mm5 |
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movd bm, %mm6 |
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psllq $32, %mm4 |
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psllq $16, %mm5 |
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por %mm6, %mm4 |
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por %mm5, %mm4 |
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pcmpeqw %mm6, %mm6 |
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psllw $15, %mm6 /* 80 00 80 00 80 00 80 00 */ |
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movq %mm6, %mm5 |
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pmulhw %mm4, %mm5 /* Get correction factor */ |
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1: |
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movl %ebx, %ecx |
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2: |
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movd (%esi, %ecx, 3), %mm1 /* 00 rr gg bb */ |
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movd %mm1, %mm2 /* we need 8 bits of this later */ |
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pxor %mm0, %mm0 |
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punpcklbw %mm1, %mm0 /* 00 00 rr 00 gg 00 bb 00 */ |
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pxor %mm6, %mm0 /* Flip sign */ |
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pmulhw %mm4, %mm0 /* 00 00 xx rr xx gg xx bb */ |
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psubw %mm5, %mm0 /* Correct range */ |
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packuswb %mm0, %mm0 /* 00 rr gg bb 00 rr gg bb */ |
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pand 0xFF000000, %mm2 /* FF 00 00 00 */ |
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por %mm2, %mm0 /* 8 old bits + 24 new ones */ |
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movd %mm0, (%esi, %ecx, 3) /* This will be fine as long as nothing jacks with the */ |
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/* byte following the imagemap in memory between the */ |
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/* time it was read and now (only for the last pixel) */ |
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/* Eterm is not threaded so no problem */ |
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incl %ecx |
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jnz 2b |
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addl bpl, %esi |
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decl %edx |
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jnz 1b |
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3: |
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LEAVE |
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#endif /* HAVE_MMX */ |
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#endif /* HAVE_MMX */ |
