diff options
Diffstat (limited to 'src/3rdparty/libwebp/src/dsp/dec_mips32.c')
-rw-r--r-- | src/3rdparty/libwebp/src/dsp/dec_mips32.c | 97 |
1 files changed, 53 insertions, 44 deletions
diff --git a/src/3rdparty/libwebp/src/dsp/dec_mips32.c b/src/3rdparty/libwebp/src/dsp/dec_mips32.c index 3e89ed3..4e9ef42 100644 --- a/src/3rdparty/libwebp/src/dsp/dec_mips32.c +++ b/src/3rdparty/libwebp/src/dsp/dec_mips32.c @@ -16,6 +16,8 @@ #if defined(WEBP_USE_MIPS32) +#include "./mips_macro.h" + static const int kC1 = 20091 + (1 << 16); static const int kC2 = 35468; @@ -52,6 +54,7 @@ static WEBP_INLINE void do_filter6(uint8_t* p, int step) { const int p2 = p[-3 * step], p1 = p[-2 * step], p0 = p[-step]; const int q0 = p[0], q1 = p[step], q2 = p[2 * step]; const int a = VP8ksclip1[3 * (q0 - p0) + VP8ksclip1[p1 - q1]]; + // a is in [-128,127], a1 in [-27,27], a2 in [-18,18] and a3 in [-9,9] const int a1 = (27 * a + 63) >> 7; // eq. to ((3 * a + 7) * 9) >> 7 const int a2 = (18 * a + 63) >> 7; // eq. to ((2 * a + 7) * 9) >> 7 const int a3 = (9 * a + 63) >> 7; // eq. to ((1 * a + 7) * 9) >> 7 @@ -68,9 +71,9 @@ static WEBP_INLINE int hev(const uint8_t* p, int step, int thresh) { return (abs_mips32(p1 - p0) > thresh) || (abs_mips32(q1 - q0) > thresh); } -static WEBP_INLINE int needs_filter(const uint8_t* p, int step, int thresh) { +static WEBP_INLINE int needs_filter(const uint8_t* p, int step, int t) { const int p1 = p[-2 * step], p0 = p[-step], q0 = p[0], q1 = p[step]; - return ((2 * abs_mips32(p0 - q0) + (abs_mips32(p1 - q1) >> 1)) <= thresh); + return ((4 * abs_mips32(p0 - q0) + abs_mips32(p1 - q1)) <= t); } static WEBP_INLINE int needs_filter2(const uint8_t* p, @@ -78,7 +81,7 @@ static WEBP_INLINE int needs_filter2(const uint8_t* p, const int p3 = p[-4 * step], p2 = p[-3 * step]; const int p1 = p[-2 * step], p0 = p[-step]; const int q0 = p[0], q1 = p[step], q2 = p[2 * step], q3 = p[3 * step]; - if ((2 * abs_mips32(p0 - q0) + (abs_mips32(p1 - q1) >> 1)) > t) { + if ((4 * abs_mips32(p0 - q0) + abs_mips32(p1 - q1)) > t) { return 0; } return abs_mips32(p3 - p2) <= it && abs_mips32(p2 - p1) <= it && @@ -89,8 +92,9 @@ static WEBP_INLINE int needs_filter2(const uint8_t* p, static WEBP_INLINE void FilterLoop26(uint8_t* p, int hstride, int vstride, int size, int thresh, int ithresh, int hev_thresh) { + const int thresh2 = 2 * thresh + 1; while (size-- > 0) { - if (needs_filter2(p, hstride, thresh, ithresh)) { + if (needs_filter2(p, hstride, thresh2, ithresh)) { if (hev(p, hstride, hev_thresh)) { do_filter2(p, hstride); } else { @@ -104,8 +108,9 @@ static WEBP_INLINE void FilterLoop26(uint8_t* p, static WEBP_INLINE void FilterLoop24(uint8_t* p, int hstride, int vstride, int size, int thresh, int ithresh, int hev_thresh) { + const int thresh2 = 2 * thresh + 1; while (size-- > 0) { - if (needs_filter2(p, hstride, thresh, ithresh)) { + if (needs_filter2(p, hstride, thresh2, ithresh)) { if (hev(p, hstride, hev_thresh)) { do_filter2(p, hstride); } else { @@ -176,8 +181,9 @@ static void HFilter16i(uint8_t* p, int stride, static void SimpleVFilter16(uint8_t* p, int stride, int thresh) { int i; + const int thresh2 = 2 * thresh + 1; for (i = 0; i < 16; ++i) { - if (needs_filter(p + i, stride, thresh)) { + if (needs_filter(p + i, stride, thresh2)) { do_filter2(p + i, stride); } } @@ -185,8 +191,9 @@ static void SimpleVFilter16(uint8_t* p, int stride, int thresh) { static void SimpleHFilter16(uint8_t* p, int stride, int thresh) { int i; + const int thresh2 = 2 * thresh + 1; for (i = 0; i < 16; ++i) { - if (needs_filter(p + i * stride, 1, thresh)) { + if (needs_filter(p + i * stride, 1, thresh2)) { do_filter2(p + i * stride, 1); } } @@ -384,7 +391,7 @@ static void TransformOne(const int16_t* in, uint8_t* dst) { "sra %[temp7], %[temp7], 3 \n\t" "sra %[temp4], %[temp4], 3 \n\t" "addiu %[temp6], $zero, 255 \n\t" - "lbu %[temp1], 0(%[dst]) \n\t" + "lbu %[temp1], 0+0*" XSTR(BPS) "(%[dst]) \n\t" "addu %[temp1], %[temp1], %[temp5] \n\t" "sra %[temp5], %[temp1], 8 \n\t" "sra %[temp18], %[temp1], 31 \n\t" @@ -392,8 +399,8 @@ static void TransformOne(const int16_t* in, uint8_t* dst) { "xor %[temp1], %[temp1], %[temp1] \n\t" "movz %[temp1], %[temp6], %[temp18] \n\t" "1: \n\t" - "lbu %[temp18], 1(%[dst]) \n\t" - "sb %[temp1], 0(%[dst]) \n\t" + "lbu %[temp18], 1+0*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp1], 0+0*" XSTR(BPS) "(%[dst]) \n\t" "addu %[temp18], %[temp18], %[temp11] \n\t" "sra %[temp11], %[temp18], 8 \n\t" "sra %[temp1], %[temp18], 31 \n\t" @@ -401,8 +408,8 @@ static void TransformOne(const int16_t* in, uint8_t* dst) { "xor %[temp18], %[temp18], %[temp18] \n\t" "movz %[temp18], %[temp6], %[temp1] \n\t" "2: \n\t" - "lbu %[temp1], 2(%[dst]) \n\t" - "sb %[temp18], 1(%[dst]) \n\t" + "lbu %[temp1], 2+0*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp18], 1+0*" XSTR(BPS) "(%[dst]) \n\t" "addu %[temp1], %[temp1], %[temp8] \n\t" "sra %[temp8], %[temp1], 8 \n\t" "sra %[temp18], %[temp1], 31 \n\t" @@ -410,8 +417,8 @@ static void TransformOne(const int16_t* in, uint8_t* dst) { "xor %[temp1], %[temp1], %[temp1] \n\t" "movz %[temp1], %[temp6], %[temp18] \n\t" "3: \n\t" - "lbu %[temp18], 3(%[dst]) \n\t" - "sb %[temp1], 2(%[dst]) \n\t" + "lbu %[temp18], 3+0*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp1], 2+0*" XSTR(BPS) "(%[dst]) \n\t" "addu %[temp18], %[temp18], %[temp16] \n\t" "sra %[temp16], %[temp18], 8 \n\t" "sra %[temp1], %[temp18], 31 \n\t" @@ -419,11 +426,11 @@ static void TransformOne(const int16_t* in, uint8_t* dst) { "xor %[temp18], %[temp18], %[temp18] \n\t" "movz %[temp18], %[temp6], %[temp1] \n\t" "4: \n\t" - "sb %[temp18], 3(%[dst]) \n\t" - "lbu %[temp5], 32(%[dst]) \n\t" - "lbu %[temp8], 33(%[dst]) \n\t" - "lbu %[temp11], 34(%[dst]) \n\t" - "lbu %[temp16], 35(%[dst]) \n\t" + "sb %[temp18], 3+0*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp5], 0+1*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp8], 1+1*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp11], 2+1*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp16], 3+1*" XSTR(BPS) "(%[dst]) \n\t" "addu %[temp5], %[temp5], %[temp17] \n\t" "addu %[temp8], %[temp8], %[temp15] \n\t" "addu %[temp11], %[temp11], %[temp12] \n\t" @@ -452,14 +459,14 @@ static void TransformOne(const int16_t* in, uint8_t* dst) { "xor %[temp16], %[temp16], %[temp16] \n\t" "movz %[temp16], %[temp6], %[temp15] \n\t" "8: \n\t" - "sb %[temp5], 32(%[dst]) \n\t" - "sb %[temp8], 33(%[dst]) \n\t" - "sb %[temp11], 34(%[dst]) \n\t" - "sb %[temp16], 35(%[dst]) \n\t" - "lbu %[temp5], 64(%[dst]) \n\t" - "lbu %[temp8], 65(%[dst]) \n\t" - "lbu %[temp11], 66(%[dst]) \n\t" - "lbu %[temp16], 67(%[dst]) \n\t" + "sb %[temp5], 0+1*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp8], 1+1*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp11], 2+1*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp16], 3+1*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp5], 0+2*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp8], 1+2*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp11], 2+2*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp16], 3+2*" XSTR(BPS) "(%[dst]) \n\t" "addu %[temp5], %[temp5], %[temp9] \n\t" "addu %[temp8], %[temp8], %[temp3] \n\t" "addu %[temp11], %[temp11], %[temp0] \n\t" @@ -488,14 +495,14 @@ static void TransformOne(const int16_t* in, uint8_t* dst) { "xor %[temp16], %[temp16], %[temp16] \n\t" "movz %[temp16], %[temp6], %[temp3] \n\t" "12: \n\t" - "sb %[temp5], 64(%[dst]) \n\t" - "sb %[temp8], 65(%[dst]) \n\t" - "sb %[temp11], 66(%[dst]) \n\t" - "sb %[temp16], 67(%[dst]) \n\t" - "lbu %[temp5], 96(%[dst]) \n\t" - "lbu %[temp8], 97(%[dst]) \n\t" - "lbu %[temp11], 98(%[dst]) \n\t" - "lbu %[temp16], 99(%[dst]) \n\t" + "sb %[temp5], 0+2*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp8], 1+2*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp11], 2+2*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp16], 3+2*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp5], 0+3*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp8], 1+3*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp11], 2+3*" XSTR(BPS) "(%[dst]) \n\t" + "lbu %[temp16], 3+3*" XSTR(BPS) "(%[dst]) \n\t" "addu %[temp5], %[temp5], %[temp13] \n\t" "addu %[temp8], %[temp8], %[temp7] \n\t" "addu %[temp11], %[temp11], %[temp4] \n\t" @@ -524,10 +531,10 @@ static void TransformOne(const int16_t* in, uint8_t* dst) { "xor %[temp16], %[temp16], %[temp16] \n\t" "movz %[temp16], %[temp6], %[temp3] \n\t" "16: \n\t" - "sb %[temp5], 96(%[dst]) \n\t" - "sb %[temp8], 97(%[dst]) \n\t" - "sb %[temp11], 98(%[dst]) \n\t" - "sb %[temp16], 99(%[dst]) \n\t" + "sb %[temp5], 0+3*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp8], 1+3*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp11], 2+3*" XSTR(BPS) "(%[dst]) \n\t" + "sb %[temp16], 3+3*" XSTR(BPS) "(%[dst]) \n\t" : [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [temp4]"=&r"(temp4), [temp5]"=&r"(temp5), @@ -548,15 +555,12 @@ static void TransformTwo(const int16_t* in, uint8_t* dst, int do_two) { } } -#endif // WEBP_USE_MIPS32 - //------------------------------------------------------------------------------ // Entry point extern void VP8DspInitMIPS32(void); -void VP8DspInitMIPS32(void) { -#if defined(WEBP_USE_MIPS32) +WEBP_TSAN_IGNORE_FUNCTION void VP8DspInitMIPS32(void) { VP8InitClipTables(); VP8Transform = TransformTwo; @@ -574,5 +578,10 @@ void VP8DspInitMIPS32(void) { VP8SimpleHFilter16 = SimpleHFilter16; VP8SimpleVFilter16i = SimpleVFilter16i; VP8SimpleHFilter16i = SimpleHFilter16i; -#endif // WEBP_USE_MIPS32 } + +#else // !WEBP_USE_MIPS32 + +WEBP_DSP_INIT_STUB(VP8DspInitMIPS32) + +#endif // WEBP_USE_MIPS32 |