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164 lines
11 KiB
C
164 lines
11 KiB
C
#include <string.h>
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#include <math.h>
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// Define a few macros for CPU dependent instructions.
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// I suspect I don't really understand how the C macro preprocessor works but
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// this seems to get the job done. // TRB 7/01
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// BEFORE USING THESE YOU MUST SET:
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// #define SIMD_TYPE MMXEXT (or MMX or 3DNOW)
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// some macros for pavgb instruction
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// V_PAVGB(mmr1, mmr2, mmr work register, smask) mmr2 may = mmrw if you can trash it
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#define V_PAVGB_MMX(mmr1, mmr2, mmrw, smask) \
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"movq "mmr2", "mmrw"\n\t" \
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"pand "smask", "mmrw"\n\t" \
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"psrlw $1, "mmrw"\n\t" \
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"pand "smask", "mmr1"\n\t" \
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"psrlw $1, "mmr1"\n\t" \
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"paddusb "mmrw", "mmr1"\n\t"
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#define V_PAVGB_MMXEXT(mmr1, mmr2, mmrw, smask) "pavgb "mmr2", "mmr1"\n\t"
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#define V_PAVGB_3DNOW(mmr1, mmr2, mmrw, smask) "pavgusb "mmr2", "mmr1"\n\t"
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#define V_PAVGB(mmr1, mmr2, mmrw, smask) V_PAVGB2(mmr1, mmr2, mmrw, smask, SIMD_TYPE)
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#define V_PAVGB2(mmr1, mmr2, mmrw, smask, simd_type) V_PAVGB3(mmr1, mmr2, mmrw, smask, simd_type)
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#define V_PAVGB3(mmr1, mmr2, mmrw, smask, simd_type) V_PAVGB_##simd_type(mmr1, mmr2, mmrw, smask)
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// some macros for pmaxub instruction
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#define V_PMAXUB_MMX(mmr1, mmr2) \
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"psubusb "mmr2", "mmr1"\n\t" \
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"paddusb "mmr2", "mmr1"\n\t"
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#define V_PMAXUB_MMXEXT(mmr1, mmr2) "pmaxub "mmr2", "mmr1"\n\t"
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#define V_PMAXUB_3DNOW(mmr1, mmr2) V_PMAXUB_MMX(mmr1, mmr2) // use MMX version
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#define V_PMAXUB(mmr1, mmr2) V_PMAXUB2(mmr1, mmr2, SIMD_TYPE)
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#define V_PMAXUB2(mmr1, mmr2, simd_type) V_PMAXUB3(mmr1, mmr2, simd_type)
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#define V_PMAXUB3(mmr1, mmr2, simd_type) V_PMAXUB_##simd_type(mmr1, mmr2)
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// some macros for pminub instruction
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// V_PMINUB(mmr1, mmr2, mmr work register) mmr2 may NOT = mmrw
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#define V_PMINUB_MMX(mmr1, mmr2, mmrw) \
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"pcmpeqb "mmrw", "mmrw"\n\t" \
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"psubusb "mmr2", "mmrw"\n\t" \
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"paddusb "mmrw", "mmr1"\n\t" \
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"psubusb "mmrw", "mmr1"\n\t"
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#define V_PMINUB_MMXEXT(mmr1, mmr2, mmrw) "pminub "mmr2", "mmr1"\n\t"
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#define V_PMINUB_3DNOW(mmr1, mmr2, mmrw) V_PMINUB_MMX(mmr1, mmr2, mmrw) // use MMX version
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#define V_PMINUB(mmr1, mmr2, mmrw) V_PMINUB2(mmr1, mmr2, mmrw, SIMD_TYPE)
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#define V_PMINUB2(mmr1, mmr2, mmrw, simd_type) V_PMINUB3(mmr1, mmr2, mmrw, simd_type)
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#define V_PMINUB3(mmr1, mmr2, mmrw, simd_type) V_PMINUB_##simd_type(mmr1, mmr2, mmrw)
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// some macros for movntq instruction
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// V_MOVNTQ(mmr1, mmr2)
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#define V_MOVNTQ_MMX(mmr1, mmr2) "movq "mmr2", "mmr1"\n\t"
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#define V_MOVNTQ_3DNOW(mmr1, mmr2) "movq "mmr2", "mmr1"\n\t"
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#define V_MOVNTQ_MMXEXT(mmr1, mmr2) "movntq "mmr2", "mmr1"\n\t"
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#define V_MOVNTQ(mmr1, mmr2) V_MOVNTQ2(mmr1, mmr2, SIMD_TYPE)
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#define V_MOVNTQ2(mmr1, mmr2, simd_type) V_MOVNTQ3(mmr1, mmr2, simd_type)
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#define V_MOVNTQ3(mmr1, mmr2, simd_type) V_MOVNTQ_##simd_type(mmr1, mmr2)
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// end of macros
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#ifdef IS_SSE2
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#define MERGE4PIXavg(PADDR1, PADDR2) \
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"movdqu "PADDR1", %%xmm0\n\t" /* our 4 pixels */ \
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"movdqu "PADDR2", %%xmm1\n\t" /* our pixel2 value */ \
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"movdqa %%xmm0, %%xmm2\n\t" /* another copy of our pixel1 value */ \
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"movdqa %%xmm1, %%xmm3\n\t" /* another copy of our pixel1 value */ \
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"psubusb %%xmm1, %%xmm2\n\t" \
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"psubusb %%xmm0, %%xmm3\n\t" \
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"por %%xmm3, %%xmm2\n\t" \
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"pavgb %%xmm1, %%xmm0\n\t" /* avg of 2 pixels */ \
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"movdqa %%xmm2, %%xmm3\n\t" /* another copy of our our weights */ \
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"pxor %%xmm1, %%xmm1\n\t" \
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"psubusb %%xmm7, %%xmm3\n\t" /* nonzero where old weights lower, else 0 */ \
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"pcmpeqb %%xmm1, %%xmm3\n\t" /* now ff where new better, else 00 */ \
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"pcmpeqb %%xmm3, %%xmm1\n\t" /* here ff where old better, else 00 */ \
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"pand %%xmm3, %%xmm0\n\t" /* keep only better new pixels */ \
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"pand %%xmm3, %%xmm2\n\t" /* and weights */ \
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"pand %%xmm1, %%xmm5\n\t" /* keep only better old pixels */ \
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"pand %%xmm1, %%xmm7\n\t" \
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"por %%xmm0, %%xmm5\n\t" /* and merge new & old vals */ \
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"por %%xmm2, %%xmm7\n\t"
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#define MERGE4PIXavgH(PADDR1A, PADDR1B, PADDR2A, PADDR2B) \
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"movdqu "PADDR1A", %%xmm0\n\t" /* our 4 pixels */ \
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"movdqu "PADDR2A", %%xmm1\n\t" /* our pixel2 value */ \
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"movdqu "PADDR1B", %%xmm2\n\t" /* our 4 pixels */ \
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"movdqu "PADDR2B", %%xmm3\n\t" /* our pixel2 value */ \
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"pavgb %%xmm2, %%xmm0\n\t" \
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"pavgb %%xmm3, %%xmm1\n\t" \
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"movdqa %%xmm0, %%xmm2\n\t" /* another copy of our pixel1 value */ \
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"movdqa %%xmm1, %%xmm3\n\t" /* another copy of our pixel1 value */ \
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"psubusb %%xmm1, %%xmm2\n\t" \
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"psubusb %%xmm0, %%xmm3\n\t" \
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"por %%xmm3, %%xmm2\n\t" \
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"pavgb %%xmm1, %%xmm0\n\t" /* avg of 2 pixels */ \
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"movdqa %%xmm2, %%xmm3\n\t" /* another copy of our our weights */ \
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"pxor %%xmm1, %%xmm1\n\t" \
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"psubusb %%xmm7, %%xmm3\n\t" /* nonzero where old weights lower, else 0 */ \
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"pcmpeqb %%xmm1, %%xmm3\n\t" /* now ff where new better, else 00 */ \
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"pcmpeqb %%xmm3, %%xmm1\n\t" /* here ff where old better, else 00 */ \
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"pand %%xmm3, %%xmm0\n\t" /* keep only better new pixels */ \
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"pand %%xmm3, %%xmm2\n\t" /* and weights */ \
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"pand %%xmm1, %%xmm5\n\t" /* keep only better old pixels */ \
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"pand %%xmm1, %%xmm7\n\t" \
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"por %%xmm0, %%xmm5\n\t" /* and merge new & old vals */ \
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"por %%xmm2, %%xmm7\n\t"
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#define RESET_CHROMA "por "_UVMask", %%xmm7\n\t"
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#else // ifdef IS_SSE2
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#define MERGE4PIXavg(PADDR1, PADDR2) \
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"movq "PADDR1", %%mm0\n\t" /* our 4 pixels */ \
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"movq "PADDR2", %%mm1\n\t" /* our pixel2 value */ \
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"movq %%mm0, %%mm2\n\t" /* another copy of our pixel1 value */ \
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"movq %%mm1, %%mm3\n\t" /* another copy of our pixel1 value */ \
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"psubusb %%mm1, %%mm2\n\t" \
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"psubusb %%mm0, %%mm3\n\t" \
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"por %%mm3, %%mm2\n\t" \
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V_PAVGB ("%%mm0", "%%mm1", "%%mm3", _ShiftMask) /* avg of 2 pixels */ \
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"movq %%mm2, %%mm3\n\t" /* another copy of our our weights */ \
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"pxor %%mm1, %%mm1\n\t" \
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"psubusb %%mm7, %%mm3\n\t" /* nonzero where old weights lower, else 0 */ \
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"pcmpeqb %%mm1, %%mm3\n\t" /* now ff where new better, else 00 */ \
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"pcmpeqb %%mm3, %%mm1\n\t" /* here ff where old better, else 00 */ \
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"pand %%mm3, %%mm0\n\t" /* keep only better new pixels */ \
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"pand %%mm3, %%mm2\n\t" /* and weights */ \
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"pand %%mm1, %%mm5\n\t" /* keep only better old pixels */ \
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"pand %%mm1, %%mm7\n\t" \
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"por %%mm0, %%mm5\n\t" /* and merge new & old vals */ \
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"por %%mm2, %%mm7\n\t"
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#define MERGE4PIXavgH(PADDR1A, PADDR1B, PADDR2A, PADDR2B) \
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"movq "PADDR1A", %%mm0\n\t" /* our 4 pixels */ \
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"movq "PADDR2A", %%mm1\n\t" /* our pixel2 value */ \
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"movq "PADDR1B", %%mm2\n\t" /* our 4 pixels */ \
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"movq "PADDR2B", %%mm3\n\t" /* our pixel2 value */ \
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V_PAVGB("%%mm0", "%%mm2", "%%mm2", _ShiftMask) \
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V_PAVGB("%%mm1", "%%mm3", "%%mm3", _ShiftMask) \
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"movq %%mm0, %%mm2\n\t" /* another copy of our pixel1 value */ \
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"movq %%mm1, %%mm3\n\t" /* another copy of our pixel1 value */ \
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"psubusb %%mm1, %%mm2\n\t" \
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"psubusb %%mm0, %%mm3\n\t" \
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"por %%mm3, %%mm2\n\t" \
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V_PAVGB("%%mm0", "%%mm1", "%%mm3", _ShiftMask) /* avg of 2 pixels */ \
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"movq %%mm2, %%mm3\n\t" /* another copy of our our weights */ \
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"pxor %%mm1, %%mm1\n\t" \
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"psubusb %%mm7, %%mm3\n\t" /* nonzero where old weights lower, else 0 */ \
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"pcmpeqb %%mm1, %%mm3\n\t" /* now ff where new better, else 00 */ \
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"pcmpeqb %%mm3, %%mm1\n\t" /* here ff where old better, else 00 */ \
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"pand %%mm3, %%mm0\n\t" /* keep only better new pixels */ \
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"pand %%mm3, %%mm2\n\t" /* and weights */ \
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"pand %%mm1, %%mm5\n\t" /* keep only better old pixels */ \
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"pand %%mm1, %%mm7\n\t" \
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"por %%mm0, %%mm5\n\t" /* and merge new & old vals */ \
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"por %%mm2, %%mm7\n\t"
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#define RESET_CHROMA "por "_UVMask", %%mm7\n\t"
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#endif
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