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Add AArch64 Neon implementation of Intra4Preds

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Add Neon implementation of Intra4Preds for use on 64-bit Arm
platforms. (The same implementation cannot be used for 32-bit Arm
platforms as it uses a number of AArch64-only Neon instructions.)

Change-Id: Id781e7614f4e8e876dfeecd95cfc85e04611d8c6
This commit is contained in:
Istvan Stefan
2023-03-27 16:21:40 +02:00
committed by Jonathan Wright
parent ff2b5b15ae
commit baa93808d9
2 changed files with 127 additions and 1 deletions
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9
src/dsp/enc.c
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@ -343,6 +343,8 @@ static void Intra16Preds_C(uint8_t* dst,
//------------------------------------------------------------------------------
// luma 4x4 prediction
#if !WEBP_NEON_OMIT_C_CODE || !WEBP_AARCH64
#define DST(x, y) dst[(x) + (y) * BPS]
#define AVG3(a, b, c) ((uint8_t)(((a) + 2 * (b) + (c) + 2) >> 2))
#define AVG2(a, b) (((a) + (b) + 1) >> 1)
@ -529,6 +531,8 @@ static void Intra4Preds_C(uint8_t* dst, const uint8_t* top) {
HU4(I4HU4 + dst, top);
}
#endif // !WEBP_NEON_OMIT_C_CODE || !WEBP_AARCH64
//------------------------------------------------------------------------------
// Metric
@ -762,8 +766,11 @@ WEBP_DSP_INIT_FUNC(VP8EncDspInit) {
VP8EncQuantize2Blocks = Quantize2Blocks_C;
#endif
VP8FTransform2 = FTransform2_C;
#if !WEBP_NEON_OMIT_C_CODE || !WEBP_AARCH64
VP8EncPredLuma4 = Intra4Preds_C;
#endif
VP8FTransform2 = FTransform2_C;
VP8EncPredLuma16 = Intra16Preds_C;
VP8EncPredChroma8 = IntraChromaPreds_C;
VP8Mean16x4 = Mean16x4_C;