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-rw-r--r--libswscale/utils.c174
1 files changed, 4 insertions, 170 deletions
diff --git a/libswscale/utils.c b/libswscale/utils.c
index 7274153453..e4a4200767 100644
--- a/libswscale/utils.c
+++ b/libswscale/utils.c
@@ -681,172 +681,6 @@ fail:
return ret;
}
-#if HAVE_MMXEXT_INLINE
-static av_cold int init_hscaler_mmxext(int dstW, int xInc, uint8_t *filterCode,
- int16_t *filter, int32_t *filterPos,
- int numSplits)
-{
- uint8_t *fragmentA;
- x86_reg imm8OfPShufW1A;
- x86_reg imm8OfPShufW2A;
- x86_reg fragmentLengthA;
- uint8_t *fragmentB;
- x86_reg imm8OfPShufW1B;
- x86_reg imm8OfPShufW2B;
- x86_reg fragmentLengthB;
- int fragmentPos;
-
- int xpos, i;
-
- // create an optimized horizontal scaling routine
- /* This scaler is made of runtime-generated MMXEXT code using specially tuned
- * pshufw instructions. For every four output pixels, if four input pixels
- * are enough for the fast bilinear scaling, then a chunk of fragmentB is
- * used. If five input pixels are needed, then a chunk of fragmentA is used.
- */
-
- // code fragment
-
- __asm__ volatile (
- "jmp 9f \n\t"
- // Begin
- "0: \n\t"
- "movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
- "movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
- "movd 1(%%"REG_c", %%"REG_S"), %%mm1 \n\t"
- "punpcklbw %%mm7, %%mm1 \n\t"
- "punpcklbw %%mm7, %%mm0 \n\t"
- "pshufw $0xFF, %%mm1, %%mm1 \n\t"
- "1: \n\t"
- "pshufw $0xFF, %%mm0, %%mm0 \n\t"
- "2: \n\t"
- "psubw %%mm1, %%mm0 \n\t"
- "movl 8(%%"REG_b", %%"REG_a"), %%esi \n\t"
- "pmullw %%mm3, %%mm0 \n\t"
- "psllw $7, %%mm1 \n\t"
- "paddw %%mm1, %%mm0 \n\t"
-
- "movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
-
- "add $8, %%"REG_a" \n\t"
- // End
- "9: \n\t"
- // "int $3 \n\t"
- "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
- "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
- "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
- "dec %1 \n\t"
- "dec %2 \n\t"
- "sub %0, %1 \n\t"
- "sub %0, %2 \n\t"
- "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
- "sub %0, %3 \n\t"
-
-
- : "=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
- "=r" (fragmentLengthA)
- );
-
- __asm__ volatile (
- "jmp 9f \n\t"
- // Begin
- "0: \n\t"
- "movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
- "movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
- "punpcklbw %%mm7, %%mm0 \n\t"
- "pshufw $0xFF, %%mm0, %%mm1 \n\t"
- "1: \n\t"
- "pshufw $0xFF, %%mm0, %%mm0 \n\t"
- "2: \n\t"
- "psubw %%mm1, %%mm0 \n\t"
- "movl 8(%%"REG_b", %%"REG_a"), %%esi \n\t"
- "pmullw %%mm3, %%mm0 \n\t"
- "psllw $7, %%mm1 \n\t"
- "paddw %%mm1, %%mm0 \n\t"
-
- "movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
-
- "add $8, %%"REG_a" \n\t"
- // End
- "9: \n\t"
- // "int $3 \n\t"
- "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
- "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
- "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
- "dec %1 \n\t"
- "dec %2 \n\t"
- "sub %0, %1 \n\t"
- "sub %0, %2 \n\t"
- "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
- "sub %0, %3 \n\t"
-
-
- : "=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
- "=r" (fragmentLengthB)
- );
-
- xpos = 0; // lumXInc/2 - 0x8000; // difference between pixel centers
- fragmentPos = 0;
-
- for (i = 0; i < dstW / numSplits; i++) {
- int xx = xpos >> 16;
-
- if ((i & 3) == 0) {
- int a = 0;
- int b = ((xpos + xInc) >> 16) - xx;
- int c = ((xpos + xInc * 2) >> 16) - xx;
- int d = ((xpos + xInc * 3) >> 16) - xx;
- int inc = (d + 1 < 4);
- uint8_t *fragment = inc ? fragmentB : fragmentA;
- x86_reg imm8OfPShufW1 = inc ? imm8OfPShufW1B : imm8OfPShufW1A;
- x86_reg imm8OfPShufW2 = inc ? imm8OfPShufW2B : imm8OfPShufW2A;
- x86_reg fragmentLength = inc ? fragmentLengthB : fragmentLengthA;
- int maxShift = 3 - (d + inc);
- int shift = 0;
-
- if (filterCode) {
- filter[i] = ((xpos & 0xFFFF) ^ 0xFFFF) >> 9;
- filter[i + 1] = (((xpos + xInc) & 0xFFFF) ^ 0xFFFF) >> 9;
- filter[i + 2] = (((xpos + xInc * 2) & 0xFFFF) ^ 0xFFFF) >> 9;
- filter[i + 3] = (((xpos + xInc * 3) & 0xFFFF) ^ 0xFFFF) >> 9;
- filterPos[i / 2] = xx;
-
- memcpy(filterCode + fragmentPos, fragment, fragmentLength);
-
- filterCode[fragmentPos + imm8OfPShufW1] = (a + inc) |
- ((b + inc) << 2) |
- ((c + inc) << 4) |
- ((d + inc) << 6);
- filterCode[fragmentPos + imm8OfPShufW2] = a | (b << 2) |
- (c << 4) |
- (d << 6);
-
- if (i + 4 - inc >= dstW)
- shift = maxShift; // avoid overread
- else if ((filterPos[i / 2] & 3) <= maxShift)
- shift = filterPos[i / 2] & 3; // align
-
- if (shift && i >= shift) {
- filterCode[fragmentPos + imm8OfPShufW1] += 0x55 * shift;
- filterCode[fragmentPos + imm8OfPShufW2] += 0x55 * shift;
- filterPos[i / 2] -= shift;
- }
- }
-
- fragmentPos += fragmentLength;
-
- if (filterCode)
- filterCode[fragmentPos] = RET;
- }
- xpos += xInc;
- }
- if (filterCode)
- filterPos[((i / 2) + 1) & (~1)] = xpos >> 16; // needed to jump to the next part
-
- return fragmentPos + 1;
-}
-#endif /* HAVE_MMXEXT_INLINE */
-
static void fill_rgb2yuv_table(SwsContext *c, const int table[4], int dstRange)
{
int64_t W, V, Z, Cy, Cu, Cv;
@@ -1400,9 +1234,9 @@ av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter,
#if HAVE_MMXEXT_INLINE
// can't downscale !!!
if (c->canMMXEXTBeUsed && (flags & SWS_FAST_BILINEAR)) {
- c->lumMmxextFilterCodeSize = init_hscaler_mmxext(dstW, c->lumXInc, NULL,
+ c->lumMmxextFilterCodeSize = ff_init_hscaler_mmxext(dstW, c->lumXInc, NULL,
NULL, NULL, 8);
- c->chrMmxextFilterCodeSize = init_hscaler_mmxext(c->chrDstW, c->chrXInc,
+ c->chrMmxextFilterCodeSize = ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc,
NULL, NULL, NULL, 4);
#if USE_MMAP
@@ -1443,9 +1277,9 @@ av_cold int sws_init_context(SwsContext *c, SwsFilter *srcFilter,
FF_ALLOCZ_OR_GOTO(c, c->hLumFilterPos, (dstW / 2 / 8 + 8) * sizeof(int32_t), fail);
FF_ALLOCZ_OR_GOTO(c, c->hChrFilterPos, (c->chrDstW / 2 / 4 + 8) * sizeof(int32_t), fail);
- init_hscaler_mmxext( dstW, c->lumXInc, c->lumMmxextFilterCode,
+ ff_init_hscaler_mmxext( dstW, c->lumXInc, c->lumMmxextFilterCode,
c->hLumFilter, (uint32_t*)c->hLumFilterPos, 8);
- init_hscaler_mmxext(c->chrDstW, c->chrXInc, c->chrMmxextFilterCode,
+ ff_init_hscaler_mmxext(c->chrDstW, c->chrXInc, c->chrMmxextFilterCode,
c->hChrFilter, (uint32_t*)c->hChrFilterPos, 4);
#if USE_MMAP
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-24 08:40:35 +0300