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MIPS: dspr2: Added optimization for DCMode function
Change-Id: I8ea31907c1ea1259ec4db8cee1a479bd13a025a1
This commit is contained in:
Djordje Pesut
parent
37e395fd1c
commit
3cca0dc7f0
@ -325,6 +325,274 @@ static int Disto16x16(const uint8_t* const a, const uint8_t* const b,
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return D;
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}
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//------------------------------------------------------------------------------
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// Intra predictions
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static WEBP_INLINE uint8_t clip_8b(int v) {
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return (!(v & ~0xff)) ? v : (v < 0) ? 0 : 255;
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}
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static uint8_t clip1[255 + 510 + 1]; // clips [-255,510] to [0,255]
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static volatile int tables_ok = 0;
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static void InitTables(void) {
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if (!tables_ok) {
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int i;
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for (i = -255; i <= 255 + 255; ++i) {
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clip1[255 + i] = clip_8b(i);
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}
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tables_ok = 1;
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}
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}
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#define FILL_PART(J, SIZE) \
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"usw %[value], 0+"#J"*"XSTR(BPS)"(%[dst]) \n\t" \
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"usw %[value], 4+"#J"*"XSTR(BPS)"(%[dst]) \n\t" \
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".if "#SIZE" == 16 \n\t" \
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"usw %[value], 8+"#J"*"XSTR(BPS)"(%[dst]) \n\t" \
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"usw %[value], 12+"#J"*"XSTR(BPS)"(%[dst]) \n\t" \
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".endif \n\t"
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#define FILL_8_OR_16(DST, VALUE, SIZE) do { \
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int value = (VALUE); \
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__asm__ volatile ( \
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"replv.qb %[value], %[value] \n\t" \
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FILL_PART( 0, SIZE) \
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FILL_PART( 1, SIZE) \
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FILL_PART( 2, SIZE) \
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FILL_PART( 3, SIZE) \
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FILL_PART( 4, SIZE) \
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FILL_PART( 5, SIZE) \
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FILL_PART( 6, SIZE) \
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FILL_PART( 7, SIZE) \
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".if "#SIZE" == 16 \n\t" \
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FILL_PART( 8, 16) \
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FILL_PART( 9, 16) \
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FILL_PART(10, 16) \
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FILL_PART(11, 16) \
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FILL_PART(12, 16) \
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FILL_PART(13, 16) \
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FILL_PART(14, 16) \
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FILL_PART(15, 16) \
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".endif \n\t" \
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: [value]"+&r"(value) \
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: [dst]"r"((DST)) \
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: "memory" \
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); \
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} while (0)
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#define VERTICAL_PRED(DST, TOP, SIZE) \
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static WEBP_INLINE void VerticalPred##SIZE(uint8_t* (DST), \
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const uint8_t* (TOP)) { \
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int j; \
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if ((TOP)) { \
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for (j = 0; j < (SIZE); ++j) memcpy((DST) + j * BPS, (TOP), (SIZE)); \
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} else { \
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FILL_8_OR_16((DST), 127, (SIZE)); \
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} \
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}
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VERTICAL_PRED(dst, top, 8)
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VERTICAL_PRED(dst, top, 16)
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#undef VERTICAL_PRED
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#define HORIZONTAL_PRED(DST, LEFT, SIZE) \
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static WEBP_INLINE void HorizontalPred##SIZE(uint8_t* (DST), \
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const uint8_t* (LEFT)) { \
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if (LEFT) { \
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int j; \
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for (j = 0; j < (SIZE); ++j) { \
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memset((DST) + j * BPS, (LEFT)[j], (SIZE)); \
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} \
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} else { \
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FILL_8_OR_16((DST), 129, (SIZE)); \
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} \
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}
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HORIZONTAL_PRED(dst, left, 8)
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HORIZONTAL_PRED(dst, left, 16)
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#undef HORIZONTAL_PRED
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#define TRUE_MOTION(DST, LEFT, TOP, SIZE) \
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static WEBP_INLINE void TrueMotion##SIZE(uint8_t* (DST), const uint8_t* (LEFT),\
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const uint8_t* (TOP)) { \
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int y; \
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if (LEFT) { \
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if (TOP) { \
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const uint8_t* const clip = clip1 + 255 - (LEFT)[-1]; \
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for (y = 0; y < (SIZE); ++y) { \
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const uint8_t* const clip_table = clip + (LEFT)[y]; \
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int x; \
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for (x = 0; x < (SIZE); ++x) { \
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(DST)[x] = clip_table[(TOP)[x]]; \
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} \
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(DST) += BPS; \
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} \
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} else { \
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HorizontalPred##SIZE((DST), (LEFT)); \
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} \
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} else { \
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/* true motion without left samples (hence: with default 129 value) */ \
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/* is equivalent to VE prediction where you just copy the top samples. */ \
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/* Note that if top samples are not available, the default value is */ \
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/* then 129, and not 127 as in the VerticalPred case. */ \
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if (TOP) { \
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VerticalPred##SIZE((DST), (TOP)); \
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} else { \
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FILL_8_OR_16((DST), 129, (SIZE)); \
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} \
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} \
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}
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TRUE_MOTION(dst, left, top, 8)
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TRUE_MOTION(dst, left, top, 16)
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#undef TRUE_MOTION
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static WEBP_INLINE void DCMode16(uint8_t* dst, const uint8_t* left,
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const uint8_t* top) {
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int DC, DC1;
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int temp0, temp1, temp2, temp3;
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__asm__ volatile(
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"beqz %[top], 2f \n\t"
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LOAD_WITH_OFFSET_X4(temp0, temp1, temp2, temp3, top,
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0, 4, 8, 12,
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0, 0, 0, 0,
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0)
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"raddu.w.qb %[temp0], %[temp0] \n\t"
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"raddu.w.qb %[temp1], %[temp1] \n\t"
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"raddu.w.qb %[temp2], %[temp2] \n\t"
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"raddu.w.qb %[temp3], %[temp3] \n\t"
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"addu %[temp0], %[temp0], %[temp1] \n\t"
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"addu %[temp2], %[temp2], %[temp3] \n\t"
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"addu %[DC], %[temp0], %[temp2] \n\t"
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"move %[DC1], %[DC] \n\t"
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"beqz %[left], 1f \n\t"
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LOAD_WITH_OFFSET_X4(temp0, temp1, temp2, temp3, left,
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0, 4, 8, 12,
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0, 0, 0, 0,
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0)
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"raddu.w.qb %[temp0], %[temp0] \n\t"
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"raddu.w.qb %[temp1], %[temp1] \n\t"
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"raddu.w.qb %[temp2], %[temp2] \n\t"
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"raddu.w.qb %[temp3], %[temp3] \n\t"
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"addu %[temp0], %[temp0], %[temp1] \n\t"
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"addu %[temp2], %[temp2], %[temp3] \n\t"
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"addu %[DC1], %[temp0], %[temp2] \n\t"
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"1: \n\t"
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"addu %[DC], %[DC], %[DC1] \n\t"
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"j 3f \n\t"
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"2: \n\t"
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"beqz %[left], 4f \n\t"
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LOAD_WITH_OFFSET_X4(temp0, temp1, temp2, temp3, left,
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0, 4, 8, 12,
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0, 0, 0, 0,
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0)
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"raddu.w.qb %[temp0], %[temp0] \n\t"
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"raddu.w.qb %[temp1], %[temp1] \n\t"
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"raddu.w.qb %[temp2], %[temp2] \n\t"
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"raddu.w.qb %[temp3], %[temp3] \n\t"
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"addu %[temp0], %[temp0], %[temp1] \n\t"
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"addu %[temp2], %[temp2], %[temp3] \n\t"
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"addu %[DC], %[temp0], %[temp2] \n\t"
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"addu %[DC], %[DC], %[DC] \n\t"
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"3: \n\t"
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"shra_r.w %[DC], %[DC], 5 \n\t"
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"j 5f \n\t"
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"4: \n\t"
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"li %[DC], 0x80 \n\t"
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"5: \n\t"
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: [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [DC]"=&r"(DC),
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[temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [DC1]"=&r"(DC1)
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: [left]"r"(left), [top]"r"(top)
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: "memory"
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);
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FILL_8_OR_16(dst, DC, 16);
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}
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static WEBP_INLINE void DCMode8(uint8_t* dst, const uint8_t* left,
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const uint8_t* top) {
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int DC, DC1;
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int temp0, temp1, temp2, temp3;
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__asm__ volatile(
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"beqz %[top], 2f \n\t"
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"ulw %[temp0], 0(%[top]) \n\t"
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"ulw %[temp1], 4(%[top]) \n\t"
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"raddu.w.qb %[temp0], %[temp0] \n\t"
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"raddu.w.qb %[temp1], %[temp1] \n\t"
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"addu %[DC], %[temp0], %[temp1] \n\t"
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"move %[DC1], %[DC] \n\t"
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"beqz %[left], 1f \n\t"
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"ulw %[temp2], 0(%[left]) \n\t"
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"ulw %[temp3], 4(%[left]) \n\t"
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"raddu.w.qb %[temp2], %[temp2] \n\t"
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"raddu.w.qb %[temp3], %[temp3] \n\t"
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"addu %[DC1], %[temp2], %[temp3] \n\t"
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"1: \n\t"
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"addu %[DC], %[DC], %[DC1] \n\t"
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"j 3f \n\t"
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"2: \n\t"
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"beqz %[left], 4f \n\t"
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"ulw %[temp2], 0(%[left]) \n\t"
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"ulw %[temp3], 4(%[left]) \n\t"
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"raddu.w.qb %[temp2], %[temp2] \n\t"
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"raddu.w.qb %[temp3], %[temp3] \n\t"
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"addu %[DC], %[temp2], %[temp3] \n\t"
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"addu %[DC], %[DC], %[DC] \n\t"
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"3: \n\t"
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"shra_r.w %[DC], %[DC], 4 \n\t"
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"j 5f \n\t"
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"4: \n\t"
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"li %[DC], 0x80 \n\t"
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"5: \n\t"
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: [temp0]"=&r"(temp0), [temp1]"=&r"(temp1), [DC]"=&r"(DC),
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[temp2]"=&r"(temp2), [temp3]"=&r"(temp3), [DC1]"=&r"(DC1)
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: [left]"r"(left), [top]"r"(top)
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: "memory"
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);
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FILL_8_OR_16(dst, DC, 8);
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}
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//------------------------------------------------------------------------------
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// Chroma 8x8 prediction (paragraph 12.2)
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static void IntraChromaPreds(uint8_t* dst, const uint8_t* left,
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const uint8_t* top) {
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// U block
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DCMode8(C8DC8 + dst, left, top);
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VerticalPred8(C8VE8 + dst, top);
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HorizontalPred8(C8HE8 + dst, left);
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TrueMotion8(C8TM8 + dst, left, top);
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// V block
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dst += 8;
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if (top) top += 8;
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if (left) left += 16;
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DCMode8(C8DC8 + dst, left, top);
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VerticalPred8(C8VE8 + dst, top);
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HorizontalPred8(C8HE8 + dst, left);
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TrueMotion8(C8TM8 + dst, left, top);
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}
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//------------------------------------------------------------------------------
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// luma 16x16 prediction (paragraph 12.3)
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static void Intra16Preds(uint8_t* dst,
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const uint8_t* left, const uint8_t* top) {
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DCMode16(I16DC16 + dst, left, top);
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VerticalPred16(I16VE16 + dst, top);
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HorizontalPred16(I16HE16 + dst, left);
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TrueMotion16(I16TM16 + dst, left, top);
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}
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#undef FILL_8_OR_16
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#undef FILL_PART
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#undef OUTPUT_EARLY_CLOBBER_REGS_17
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#undef MUL_HALF
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#undef ABS_X8
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@ -339,9 +607,12 @@ extern WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPSdspR2(void);
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WEBP_TSAN_IGNORE_FUNCTION void VP8EncDspInitMIPSdspR2(void) {
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#if defined(WEBP_USE_MIPS_DSP_R2)
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InitTables();
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VP8FTransform = FTransform;
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VP8ITransform = ITransform;
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VP8TDisto4x4 = Disto4x4;
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VP8TDisto16x16 = Disto16x16;
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VP8EncPredLuma16 = Intra16Preds;
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VP8EncPredChroma8 = IntraChromaPreds;
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#endif // WEBP_USE_MIPS_DSP_R2
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}
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