diff options
Diffstat (limited to 'intern/cycles/util/util_half.h')
| -rw-r--r-- | intern/cycles/util/util_half.h | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/intern/cycles/util/util_half.h b/intern/cycles/util/util_half.h index d9edfec5da3..f36a492a1b0 100644 --- a/intern/cycles/util/util_half.h +++ b/intern/cycles/util/util_half.h @@ -29,7 +29,7 @@ CCL_NAMESPACE_BEGIN /* Half Floats */ /* CUDA has its own half data type, no need to define then */ -#ifndef __KERNEL_CUDA__ +#if !defined(__KERNEL_CUDA__) && !defined(__KERNEL_HIP__) /* Implementing this as a class rather than a typedef so that the compiler can tell it apart from * unsigned shorts. */ class half { @@ -59,7 +59,7 @@ struct half4 { half x, y, z, w; }; -#ifdef __KERNEL_CUDA__ +#if defined(__KERNEL_CUDA__) || defined(__KERNEL_HIP__) ccl_device_inline void float4_store_half(half *h, float4 f) { @@ -73,6 +73,7 @@ ccl_device_inline void float4_store_half(half *h, float4 f) ccl_device_inline void float4_store_half(half *h, float4 f) { + # ifndef __KERNEL_SSE2__ for (int i = 0; i < 4; i++) { /* optimized float to half for pixels: @@ -109,6 +110,8 @@ ccl_device_inline void float4_store_half(half *h, float4 f) # endif } +# ifndef __KERNEL_HIP__ + ccl_device_inline float half_to_float(half h) { float f; @@ -117,6 +120,23 @@ ccl_device_inline float half_to_float(half h) return f; } +# else + +ccl_device_inline float half_to_float(std::uint32_t a) noexcept +{ + + std::uint32_t u = ((a << 13) + 0x70000000U) & 0x8fffe000U; + + std::uint32_t v = __float_as_uint(__uint_as_float(u) * + __uint_as_float(0x77800000U) /*0x1.0p+112f*/) + + 0x38000000U; + + u = (a & 0x7fff) != 0 ? v : u; + + return __uint_as_float(u) * __uint_as_float(0x07800000U) /*0x1.0p-112f*/; +} + +# endif /* __KERNEL_HIP__ */ ccl_device_inline float4 half4_to_float4(half4 h) { |