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ggml : fix interpolate with align-corners and ne=1 (#16700)

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* ggml : fix interpolate with align-corners and ne=1

* avoid division by zero if one of the spatial dimensions is 1
* cpu, cuda, opencl returned correct result anyway due to clamp
* vulkan didn't clamp for align-corners so results were broken

* fix clang warning
This commit is contained in:
Acly
2025-10-27 21:50:22 +01:00
committed by GitHub
parent 80d28f104c
commit 10640e31aa
6 changed files with 29 additions and 36 deletions
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ggml/src/ggml-cuda/upscale.cu
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@@ -126,8 +126,8 @@ void ggml_cuda_op_upscale(ggml_backend_cuda_context & ctx, ggml_tensor * dst) {
} else if (mode == GGML_SCALE_MODE_BILINEAR) {
float pixel_offset = 0.5f;
if (mode_flags & GGML_SCALE_FLAG_ALIGN_CORNERS) {
sf0 = (float)(dst->ne[0] - 1) / (src0->ne[0] - 1);
sf1 = (float)(dst->ne[1] - 1) / (src0->ne[1] - 1);
sf0 = dst->ne[0] > 1 && src0->ne[0] > 1 ? (float)(dst->ne[0] - 1) / (src0->ne[0] - 1) : sf0;
sf1 = dst->ne[1] > 1 && src0->ne[1] > 1 ? (float)(dst->ne[1] - 1) / (src0->ne[1] - 1) : sf1;
pixel_offset = 0.0f;
}
upscale_f32_bilinear_cuda(src0_d, dst_d, src0->nb[0], src0->nb[1], src0->nb[2], src0->nb[3],