fix float32 UV become neutral with arm neon

yuygfgg · sekrit-twc · commit 9a9a8eab3e29 · 2025-02-27T08:49:37.000-08:00
diff --git a/src/zimg/resize/arm/resize_impl_neon.cpp b/src/zimg/resize/arm/resize_impl_neon.cpp
@@ -218,8 +218,8 @@ inline FORCE_INLINE float32x4_t resize_line4_h_f32_neon_xiter(unsigned j, const
 	{
 		float32x4_t &acc = kk % 2 ? accum1 : accum0;
 
-		float32x4_t c = vdupq_laneq_f32(coeffs, 0);
-		float32x4_t x = vld1q_f32(src_p + 0);
+		float32x4_t c = vdupq_laneq_f32(coeffs, static_cast<int>(kk));
+		float32x4_t x = vld1q_f32(src_p + 4 * static_cast<int>(kk)); 
 		acc = vfmaq_f32(acc, c, x);
 	};
 

Original file line number	Diff line number	Diff line change
`@@ -218,8 +218,8 @@ inline FORCE_INLINE float32x4_t resize_line4_h_f32_neon_xiter(unsigned j, const`
`218`	`218`	`{`
`219`	`219`	`float32x4_t &acc = kk % 2 ? accum1 : accum0;`
`220`	`220`
`221`		`- float32x4_t c = vdupq_laneq_f32(coeffs, 0);`
`222`		`- float32x4_t x = vld1q_f32(src_p + 0);`
	`221`	`+ float32x4_t c = vdupq_laneq_f32(coeffs, static_cast<int>(kk));`
	`222`	`+ float32x4_t x = vld1q_f32(src_p + 4 * static_cast<int>(kk));`
`223`	`223`	`acc = vfmaq_f32(acc, c, x);`
`224`	`224`	`};`
`225`	`225`