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1) Added back the colour SSE2 delta algorithms 

2) Modified SSE algorithms to use one less register
3) Fixed AlarmedPixels motion detection
This commit is contained in:
Kfir Itzhak 2011-05-23 15:52:33 +03:00
parent 642a1bfdb2
commit 1afe0bbf42
4 changed files with 331 additions and 39 deletions
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336
src/zm_image.cpp
View File

@ -181,12 +181,20 @@ void Image::Initialise()
Debug(2,"Delta: Using SSSE3 delta functions");
} else if(sseversion >= 20) {
/* SSE2 available */
fptr_delta8_rgba = &std_delta8_rgba;
fptr_delta8_bgra = &std_delta8_bgra;
fptr_delta8_argb = &std_delta8_argb;
fptr_delta8_abgr = &std_delta8_abgr;
fptr_delta8_rgba = &sse2_delta8_rgba;
fptr_delta8_bgra = &sse2_delta8_bgra;
fptr_delta8_argb = &sse2_delta8_argb;
fptr_delta8_abgr = &sse2_delta8_abgr;
/* On some systems, the 4 SSE2 algorithms above might be slower than
** the standard algorithms, especially on early Pentium 4 processors
** In that case, comment out the 4 lines above and uncomment the 4 lines below
*/
// fptr_delta8_rgba = &std_delta8_rgba;
// fptr_delta8_bgra = &std_delta8_bgra;
// fptr_delta8_argb = &std_delta8_argb;
// fptr_delta8_abgr = &std_delta8_abgr;
fptr_delta8_gray8 = &sse2_delta8_gray8;
Debug(2,"Delta: Using standard and SSE2 delta functions");
Debug(2,"Delta: Using SSE2 delta functions");
} else {
/* No SSE available */
fptr_delta8_rgba = &std_delta8_rgba;
@ -2403,7 +2411,7 @@ __attribute__ ((noinline)) void sse2_fastblend(const uint8_t* col1, const uint8_
"cmp %3, %4\n\t"
"jb algo_sse2_blend\n\t"
:
: "r" (col1), "r" (col2), "r" (result), "r" (count), "r" (i), "m" (clearmask), "m" (divider)
: "r" (col1), "r" (col2), "r" (result), "m" (count), "r" (i), "m" (clearmask), "m" (divider)
: "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "cc", "memory"
);
#else
@ -2666,7 +2674,7 @@ __attribute__ ((noinline)) void sse2_delta8_gray8(const uint8_t* col1, const uin
"cmp %3, %4\n\t"
"jb algo_sse2_delta8_gray8\n\t"
:
: "r" (col1), "r" (col2), "r" (result), "r" (count), "r" (i)
: "r" (col1), "r" (col2), "r" (result), "m" (count), "r" (i)
: "%xmm1", "%xmm2", "%xmm3", "%xmm4", "cc", "memory"
);
#else
@ -2674,6 +2682,308 @@ __attribute__ ((noinline)) void sse2_delta8_gray8(const uint8_t* col1, const uin
#endif
}
/* RGB32: RGBA SSE2 */
__attribute__ ((noinline)) void sse2_delta8_rgba(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count) {
#if (defined(__i386__) || defined(__x86_64__))
unsigned long i = 0;
/* XMM0 - clear mask - kept */
/* XMM1,2,3 - General purpose */
/* XMM4 - divide mask - kept */
/* XMM5 - temp */
/* XMM6 - temp */
/* XMM7 - unused */
__asm__ __volatile__ (
"mov $0x1F1F1F1F, %%eax\n\t"
"movd %%eax, %%xmm4\n\t"
"pshufd $0x0, %%xmm4, %%xmm4\n\t"
"mov $0xff, %%eax\n\t"
"movd %%eax, %%xmm0\n\t"
"pshufd $0x0, %%xmm0, %%xmm0\n\t"
"mov $0x80000000, %%eax\n\t"
"movd %%eax, %%xmm5\n\t"
"pshufd $0x0, %%xmm5, %%xmm5\n\t"
"algo_sse2_delta8_rgba:\n\t"
"movdqa (%0,%4,4), %%xmm1\n\t"
"movdqa (%1,%4,4), %%xmm2\n\t"
"psrlq $0x3, %%xmm1\n\t"
"psrlq $0x3, %%xmm2\n\t"
"pand %%xmm4, %%xmm1\n\t"
"pand %%xmm4, %%xmm2\n\t"
"movdqa %%xmm1, %%xmm5\n\t"
"movdqa %%xmm2, %%xmm6\n\t"
"pmaxub %%xmm1, %%xmm2\n\t"
"pminub %%xmm5, %%xmm6\n\t"
"psubb %%xmm6, %%xmm2\n\t"
"movdqa %%xmm2, %%xmm3\n\t"
"psrld $0x8, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"movdqa %%xmm2, %%xmm1\n\t"
"pslld $0x2, %%xmm2\n\t"
"paddd %%xmm1, %%xmm2\n\t"
"movdqa %%xmm3, %%xmm1\n\t"
"pand %%xmm0, %%xmm1\n\t"
"paddd %%xmm1, %%xmm1\n\t"
"paddd %%xmm2, %%xmm1\n\t"
"movdqa %%xmm3, %%xmm2\n\t"
"psrld $0x10, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"paddd %%xmm2, %%xmm1\n\t"
"movdqa %%xmm1, %%xmm3\n\t"
"movdqa %%xmm1, %%xmm2\n\t"
"pand %%xmm0, %%xmm3\n\t"
"pand %%xmm0, %%xmm2\n\t"
"psrldq $0x9, %%xmm2\n\t"
"por %%xmm2, %%xmm3\n\t"
"movdqa %%xmm1, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"psrldq $0x6, %%xmm2\n\t"
"por %%xmm2, %%xmm3\n\t"
"pand %%xmm0, %%xmm1\n\t"
"psrldq $0x3, %%xmm1\n\t"
"por %%xmm1, %%xmm3\n\t"
"movd %%xmm3, %%eax\n\t"
"movnti %%eax, (%2,%4)\n\t"
"add $0x4, %4\n\t"
"cmp %3, %4\n\t"
"jb algo_sse2_delta8_rgba\n\t"
:
: "r" (col1), "r" (col2), "r" (result), "m" (count), "r" (i)
: "%eax", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "cc", "memory"
);
#else
Panic("SSE function called on a non x86\\x86-64 platform");
#endif
}
/* RGB32: BGRA SSE2 */
__attribute__ ((noinline)) void sse2_delta8_bgra(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count) {
#if (defined(__i386__) || defined(__x86_64__))
unsigned long i = 0;
/* XMM0 - clear mask - kept */
/* XMM1,2,3 - General purpose */
/* XMM4 - divide mask - kept */
/* XMM5 - temp */
/* XMM6 - temp */
/* XMM7 - unused */
__asm__ __volatile__ (
"mov $0x1F1F1F1F, %%eax\n\t"
"movd %%eax, %%xmm4\n\t"
"pshufd $0x0, %%xmm4, %%xmm4\n\t"
"mov $0xff, %%eax\n\t"
"movd %%eax, %%xmm0\n\t"
"pshufd $0x0, %%xmm0, %%xmm0\n\t"
"mov $0x80000000, %%eax\n\t"
"movd %%eax, %%xmm5\n\t"
"pshufd $0x0, %%xmm5, %%xmm5\n\t"
"algo_sse2_delta8_bgra:\n\t"
"movdqa (%0,%4,4), %%xmm1\n\t"
"movdqa (%1,%4,4), %%xmm2\n\t"
"psrlq $0x3, %%xmm1\n\t"
"psrlq $0x3, %%xmm2\n\t"
"pand %%xmm4, %%xmm1\n\t"
"pand %%xmm4, %%xmm2\n\t"
"movdqa %%xmm1, %%xmm5\n\t"
"movdqa %%xmm2, %%xmm6\n\t"
"pmaxub %%xmm1, %%xmm2\n\t"
"pminub %%xmm5, %%xmm6\n\t"
"psubb %%xmm6, %%xmm2\n\t"
"movdqa %%xmm2, %%xmm3\n\t"
"psrld $0x8, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"movdqa %%xmm2, %%xmm1\n\t"
"pslld $0x2, %%xmm2\n\t"
"paddd %%xmm1, %%xmm2\n\t"
"movdqa %%xmm3, %%xmm1\n\t"
"pand %%xmm0, %%xmm1\n\t"
"paddd %%xmm2, %%xmm1\n\t"
"movdqa %%xmm3, %%xmm2\n\t"
"psrld $0x10, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"paddd %%xmm2, %%xmm2\n\t"
"paddd %%xmm2, %%xmm1\n\t"
"movdqa %%xmm1, %%xmm3\n\t"
"movdqa %%xmm1, %%xmm2\n\t"
"pand %%xmm0, %%xmm3\n\t"
"pand %%xmm0, %%xmm2\n\t"
"psrldq $0x9, %%xmm2\n\t"
"por %%xmm2, %%xmm3\n\t"
"movdqa %%xmm1, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"psrldq $0x6, %%xmm2\n\t"
"por %%xmm2, %%xmm3\n\t"
"pand %%xmm0, %%xmm1\n\t"
"psrldq $0x3, %%xmm1\n\t"
"por %%xmm1, %%xmm3\n\t"
"movd %%xmm3, %%eax\n\t"
"movnti %%eax, (%2,%4)\n\t"
"add $0x4, %4\n\t"
"cmp %3, %4\n\t"
"jb algo_sse2_delta8_bgra\n\t"
:
: "r" (col1), "r" (col2), "r" (result), "m" (count), "r" (i)
: "%eax", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "cc", "memory"
);
#else
Panic("SSE function called on a non x86\\x86-64 platform");
#endif
}
/* RGB32: ARGB SSE2 */
__attribute__ ((noinline)) void sse2_delta8_argb(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count) {
#if (defined(__i386__) || defined(__x86_64__))
unsigned long i = 0;
/* XMM0 - clear mask - kept */
/* XMM1,2,3 - General purpose */
/* XMM4 - divide mask - kept */
/* XMM5 - temp */
/* XMM6 - temp */
/* XMM7 - unused */
__asm__ __volatile__ (
"mov $0x1F1F1F1F, %%eax\n\t"
"movd %%eax, %%xmm4\n\t"
"pshufd $0x0, %%xmm4, %%xmm4\n\t"
"mov $0xff, %%eax\n\t"
"movd %%eax, %%xmm0\n\t"
"pshufd $0x0, %%xmm0, %%xmm0\n\t"
"mov $0x80000000, %%eax\n\t"
"movd %%eax, %%xmm5\n\t"
"pshufd $0x0, %%xmm5, %%xmm5\n\t"
"algo_sse2_delta8_argb:\n\t"
"movdqa (%0,%4,4), %%xmm1\n\t"
"movdqa (%1,%4,4), %%xmm2\n\t"
"psrlq $0x3, %%xmm1\n\t"
"psrlq $0x3, %%xmm2\n\t"
"pand %%xmm4, %%xmm1\n\t"
"pand %%xmm4, %%xmm2\n\t"
"movdqa %%xmm1, %%xmm5\n\t"
"movdqa %%xmm2, %%xmm6\n\t"
"pmaxub %%xmm1, %%xmm2\n\t"
"pminub %%xmm5, %%xmm6\n\t"
"psubb %%xmm6, %%xmm2\n\t"
"movdqa %%xmm2, %%xmm3\n\t"
"psrld $0x10, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"movdqa %%xmm2, %%xmm1\n\t"
"pslld $0x2, %%xmm2\n\t"
"paddd %%xmm1, %%xmm2\n\t"
"movdqa %%xmm3, %%xmm1\n\t"
"psrld $0x8, %%xmm1\n\t"
"pand %%xmm0, %%xmm1\n\t"
"paddd %%xmm1, %%xmm1\n\t"
"paddd %%xmm2, %%xmm1\n\t"
"movdqa %%xmm3, %%xmm2\n\t"
"psrld $0x18, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"paddd %%xmm2, %%xmm1\n\t"
"movdqa %%xmm1, %%xmm3\n\t"
"movdqa %%xmm1, %%xmm2\n\t"
"pand %%xmm0, %%xmm3\n\t"
"pand %%xmm0, %%xmm2\n\t"
"psrldq $0x9, %%xmm2\n\t"
"por %%xmm2, %%xmm3\n\t"
"movdqa %%xmm1, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"psrldq $0x6, %%xmm2\n\t"
"por %%xmm2, %%xmm3\n\t"
"pand %%xmm0, %%xmm1\n\t"
"psrldq $0x3, %%xmm1\n\t"
"por %%xmm1, %%xmm3\n\t"
"movd %%xmm3, %%eax\n\t"
"movnti %%eax, (%2,%4)\n\t"
"add $0x4, %4\n\t"
"cmp %3, %4\n\t"
"jb algo_sse2_delta8_argb\n\t"
:
: "r" (col1), "r" (col2), "r" (result), "m" (count), "r" (i)
: "%eax", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "cc", "memory"
);
#else
Panic("SSE function called on a non x86\\x86-64 platform");
#endif
}
/* RGB32: ABGR SSE2 */
__attribute__ ((noinline)) void sse2_delta8_abgr(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count) {
#if (defined(__i386__) || defined(__x86_64__))
unsigned long i = 0;
/* XMM0 - clear mask - kept */
/* XMM1,2,3 - General purpose */
/* XMM4 - divide mask - kept */
/* XMM5 - temp */
/* XMM6 - temp */
/* XMM7 - unused */
__asm__ __volatile__ (
"mov $0x1F1F1F1F, %%eax\n\t"
"movd %%eax, %%xmm4\n\t"
"pshufd $0x0, %%xmm4, %%xmm4\n\t"
"mov $0xff, %%eax\n\t"
"movd %%eax, %%xmm0\n\t"
"pshufd $0x0, %%xmm0, %%xmm0\n\t"
"mov $0x80000000, %%eax\n\t"
"movd %%eax, %%xmm5\n\t"
"pshufd $0x0, %%xmm5, %%xmm5\n\t"
"algo_sse2_delta8_abgr:\n\t"
"movdqa (%0,%4,4), %%xmm1\n\t"
"movdqa (%1,%4,4), %%xmm2\n\t"
"psrlq $0x3, %%xmm1\n\t"
"psrlq $0x3, %%xmm2\n\t"
"pand %%xmm4, %%xmm1\n\t"
"pand %%xmm4, %%xmm2\n\t"
"movdqa %%xmm1, %%xmm5\n\t"
"movdqa %%xmm2, %%xmm6\n\t"
"pmaxub %%xmm1, %%xmm2\n\t"
"pminub %%xmm5, %%xmm6\n\t"
"psubb %%xmm6, %%xmm2\n\t"
"movdqa %%xmm2, %%xmm3\n\t"
"psrld $0x10, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"movdqa %%xmm2, %%xmm1\n\t"
"pslld $0x2, %%xmm2\n\t"
"paddd %%xmm1, %%xmm2\n\t"
"movdqa %%xmm3, %%xmm1\n\t"
"psrld $0x8, %%xmm1\n\t"
"pand %%xmm0, %%xmm1\n\t"
"paddd %%xmm2, %%xmm1\n\t"
"movdqa %%xmm3, %%xmm2\n\t"
"psrld $0x18, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"paddd %%xmm2, %%xmm2\n\t"
"paddd %%xmm2, %%xmm1\n\t"
"movdqa %%xmm1, %%xmm3\n\t"
"movdqa %%xmm1, %%xmm2\n\t"
"pand %%xmm0, %%xmm3\n\t"
"pand %%xmm0, %%xmm2\n\t"
"psrldq $0x9, %%xmm2\n\t"
"por %%xmm2, %%xmm3\n\t"
"movdqa %%xmm1, %%xmm2\n\t"
"pand %%xmm0, %%xmm2\n\t"
"psrldq $0x6, %%xmm2\n\t"
"por %%xmm2, %%xmm3\n\t"
"pand %%xmm0, %%xmm1\n\t"
"psrldq $0x3, %%xmm1\n\t"
"por %%xmm1, %%xmm3\n\t"
"movd %%xmm3, %%eax\n\t"
"movnti %%eax, (%2,%4)\n\t"
"add $0x4, %4\n\t"
"cmp %3, %4\n\t"
"jb algo_sse2_delta8_abgr\n\t"
:
: "r" (col1), "r" (col2), "r" (result), "m" (count), "r" (i)
: "%eax", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "%xmm6", "cc", "memory"
);
#else
Panic("SSE function called on a non x86\\x86-64 platform");
#endif
}
/* RGB32: RGBA SSSE3 */
__attribute__ ((noinline)) void ssse3_delta8_rgba(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count) {
#if (defined(__i386__) || defined(__x86_64__))
@ -2724,7 +3034,7 @@ __attribute__ ((noinline)) void ssse3_delta8_rgba(const uint8_t* col1, const uin
"cmp %3, %4\n\t"
"jb algo_ssse3_delta8_rgba\n\t"
:
: "r" (col1), "r" (col2), "r" (result), "r" (count), "r" (i), "m" (*movemask)
: "r" (col1), "r" (col2), "r" (result), "m" (count), "r" (i), "m" (*movemask)
: "%eax", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "cc", "memory"
);
#else
@ -2782,7 +3092,7 @@ __attribute__ ((noinline)) void ssse3_delta8_bgra(const uint8_t* col1, const uin
"cmp %3, %4\n\t"
"jb algo_ssse3_delta8_bgra\n\t"
:
: "r" (col1), "r" (col2), "r" (result), "r" (count), "r" (i), "m" (*movemask)
: "r" (col1), "r" (col2), "r" (result), "m" (count), "r" (i), "m" (*movemask)
: "%eax", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "cc", "memory"
);
#else
@ -2841,7 +3151,7 @@ __attribute__ ((noinline)) void ssse3_delta8_argb(const uint8_t* col1, const uin
"cmp %3, %4\n\t"
"jb algo_ssse3_delta8_argb\n\t"
:
: "r" (col1), "r" (col2), "r" (result), "r" (count), "r" (i), "m" (*movemask)
: "r" (col1), "r" (col2), "r" (result), "m" (count), "r" (i), "m" (*movemask)
: "%eax", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "cc", "memory"
);
#else
@ -2900,7 +3210,7 @@ __attribute__ ((noinline)) void ssse3_delta8_abgr(const uint8_t* col1, const uin
"cmp %3, %4\n\t"
"jb algo_ssse3_delta8_abgr\n\t"
:
: "r" (col1), "r" (col2), "r" (result), "r" (count), "r" (i), "m" (*movemask)
: "r" (col1), "r" (col2), "r" (result), "m" (count), "r" (i), "m" (*movemask)
: "%eax", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "cc", "memory"
);
#else
@ -3072,7 +3382,7 @@ __attribute__ ((noinline)) void ssse3_convert_rgba_gray8(const uint8_t* col1, ui
"cmp %2, %3\n\t"
"jb algo_ssse3_convert_rgba_gray8\n\t"
:
: "r" (col1), "r" (result), "r" (count), "r" (i), "m" (*movemask)
: "r" (col1), "r" (result), "m" (count), "r" (i), "m" (*movemask)
: "%eax", "%xmm0", "%xmm1", "%xmm2", "%xmm3", "%xmm4", "%xmm5", "cc", "memory"
);
#else
@ -3113,7 +3423,7 @@ __attribute__ ((noinline)) void ssse3_convert_yuyv_gray8(const uint8_t* col1, ui
"cmp %2, %3\n\t"
"jb algo_ssse3_convert_yuyv_gray8\n\t"
:
: "r" (col1), "r" (result), "r" (count), "r" (i), "m" (*movemask1), "m" (*movemask2)
: "r" (col1), "r" (result), "m" (count), "r" (i), "m" (*movemask1), "m" (*movemask2)
: "%xmm3", "%xmm4", "cc", "memory"
);
#else

4
src/zm_image.h
View File

@ -258,6 +258,10 @@ void std_delta8_bgra(const uint8_t* col1, const uint8_t* col2, uint8_t* result,
void std_delta8_argb(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count);
void std_delta8_abgr(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count);
void sse2_delta8_gray8(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count);
void sse2_delta8_rgba(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count);
void sse2_delta8_bgra(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count);
void sse2_delta8_argb(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count);
void sse2_delta8_abgr(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count);
void ssse3_delta8_rgba(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count);
void ssse3_delta8_bgra(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count);
void ssse3_delta8_argb(const uint8_t* col1, const uint8_t* col2, uint8_t* result, unsigned long count);

1
src/zm_monitor.cpp
View File

@ -2937,6 +2937,7 @@ bool Monitor::DumpSettings( char *output, bool verbose )
}
#endif // ZM_HAS_V4L
sprintf( output+strlen(output), "Colours : %d\n", camera->Colours() );
sprintf( output+strlen(output), "Subpixel Order : %d\n", camera->SubpixelOrder() );
sprintf( output+strlen(output), "Event Prefix : %s\n", event_prefix );
sprintf( output+strlen(output), "Label Format : %s\n", label_format );
sprintf( output+strlen(output), "Label Coord : %d,%d\n", label_coord.X(), label_coord.Y() );

29
src/zm_zone.cpp
View File

@ -171,28 +171,15 @@ bool Zone::CheckAlarms( const Image *delta_image )
hi_x = ranges[py].hi_x;
Debug( 7, "Checking line %d from %d -> %d", y, lo_x, hi_x );
pdiff = diff_buff + (lo_x * y);
pdiff = diff_buff + (diff_width * y);
ppoly = pg_image->Buffer( ranges[py].off_x, py );
// Left margin
if ( y < hi_y )
{
int next_lo_x = ranges[py+1].lo_x;
if ( next_lo_x < lo_x )
{
int lo_x_diff = lo_x-next_lo_x;
memset( pdiff-lo_x_diff, BLACK, lo_x_diff );
}
else if ( lo_x > 0 )
*(pdiff-1) = BLACK;
}
else if ( lo_x > 0 )
*(pdiff-1) = BLACK;
pdiff += lo_x;
for ( int x = lo_x; x <= hi_x; x++, pdiff++, ppoly++ )
{
if ( *ppoly && (*pdiff > min_pixel_threshold) && (!max_pixel_threshold || (*pdiff < max_pixel_threshold)) )
{
alarm_pixels++;
pixel_diff_count += abs(*pdiff);
pixel_diff_count += *pdiff;
*pdiff = WHITE;
}
else
@ -200,16 +187,6 @@ bool Zone::CheckAlarms( const Image *delta_image )
*pdiff = BLACK;
}
}
// Right margin
if ( y < hi_y )
{
int next_hi_x = ranges[py+1].hi_x;
if ( next_hi_x > hi_x )
{
//printf( "%d: Setting %d-%d = %d\n", y, hi_x, next_hi_x, next_hi_x-hi_x );
memset( pdiff, BLACK, next_hi_x-hi_x );
}
}
}
if ( pixel_diff_count && alarm_pixels )
pixel_diff = pixel_diff_count/alarm_pixels;