skgpu::graphite::LayoutTraits< N, Half > Struct Template Reference

#include <UniformManager.h>

Static Public Member Functions
static void	Copy (const void *src, void *dst)

Static Public Attributes
static constexpr int	kElemSize = Half ? sizeof(SkHalf) : sizeof(float)
static constexpr int	kSize = N * kElemSize
static constexpr int	kAlign = SkNextPow2_portable(N) * kElemSize

Detailed Description

template<int N, bool Half>
struct skgpu::graphite::LayoutTraits< N, Half >

Definition at line 366 of file UniformManager.h.

Member Function Documentation

Copy()

template<int N, bool Half>

static void skgpu::graphite::LayoutTraits< N, Half >::Copy ( const void *  src, void *  dst  )

inlinestatic

Definition at line 375 of file UniformManager.h.

                                                 {
        if constexpr (Half) {
            using VecF = skvx::Vec<SkNextPow2_portable(N), float>;
            VecF srcData;
            if constexpr (N == 3) {
                // Load the 3 values into a float4 to take advantage of vectorized conversion.
                // The 4th value will not be copied to dst.
                const float* srcF = static_cast<const float*>(src);
                srcData = VecF{srcF[0], srcF[1], srcF[2], 0.f};
            } else {
                srcData = VecF::Load(src);
            }
 
            auto dstData = to_half(srcData);
            // NOTE: this is identical to Vec::store() for N=1,2,4 and correctly drops the 4th
            // lane when N=3.
            memcpy(dst, &dstData, kSize);
        } else {
            memcpy(dst, src, kSize);
        }
    }

Member Data Documentation

kAlign

template<int N, bool Half>

constexpr int skgpu::graphite::LayoutTraits< N, Half >::kAlign = SkNextPow2_portable(N) * kElemSize

staticconstexpr

Definition at line 371 of file UniformManager.h.

kElemSize

template<int N, bool Half>

constexpr int skgpu::graphite::LayoutTraits< N, Half >::kElemSize = Half ? sizeof(SkHalf) : sizeof(float)

staticconstexpr

Definition at line 369 of file UniformManager.h.

kSize

template<int N, bool Half>

constexpr int skgpu::graphite::LayoutTraits< N, Half >::kSize = N * kElemSize

staticconstexpr

Definition at line 370 of file UniformManager.h.

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The documentation for this struct was generated from the following file:

• third_party/skia/src/gpu/graphite/UniformManager.h