Method SetPixels

Source/Engine/Graphics/Textures/TextureBase.cpp:471–558

}

bool TextureBase::SetPixels(const Span<Color32>& pixels, int32 mipIndex, int32 arrayIndex, bool generateMips)
{
    PROFILE_CPU_NAMED("Texture.SetPixels");
    if (!IsVirtual())
    {
        LOG(Error, "Texture must be virtual.");
        return true;
    }
    ScopeLock lock(Locker);
    if (_customData == nullptr || Width() == 0)
    {
        LOG(Error, "Texture must be initialized.");
        return true;
    }
    const PixelFormat format = Format();
    const int32 width = Math::Max(1, Width() >> mipIndex);
    const int32 height = Math::Max(1, Height() >> mipIndex);
    auto& mipData = _customData->Mips[mipIndex];
    const int32 rowPitch = mipData.RowPitch;
    const int32 sliceSize = mipData.SlicePitch;
    if (pixels.Length() != width * height)
    {
        Log::ArgumentOutOfRangeException();
        return true;
    }

    // Convert pixels to the texture format
    ASSERT(mipData.Data.IsAllocated());
    byte* dst = mipData.Data.Get() + sliceSize * arrayIndex;
    bool error = true;
    switch (format)
    {
    case PixelFormat::R8G8B8A8_SInt:
    case PixelFormat::R8G8B8A8_Typeless:
    case PixelFormat::R8G8B8A8_SNorm:
    case PixelFormat::R8G8B8A8_UInt:
    case PixelFormat::R8G8B8A8_UNorm:
    case PixelFormat::R8G8B8A8_UNorm_sRGB:
    case PixelFormat::R8G8_B8G8_UNorm:
    case PixelFormat::B8G8R8A8_Typeless:
    case PixelFormat::B8G8R8A8_UNorm:
    case PixelFormat::B8G8R8A8_UNorm_sRGB:
    case PixelFormat::B8G8R8X8_Typeless:
    case PixelFormat::B8G8R8X8_UNorm:
    case PixelFormat::B8G8R8X8_UNorm_sRGB:
        if (rowPitch == width * sizeof(Color32))
        {
            Platform::MemoryCopy(dst, pixels.Get(), sliceSize);
            error = false;
        }
        break;
    }
    if (error)
    {
        // Try to use texture sampler utility
        auto sampler = PixelFormatSampler::Get(format);
        if (sampler)
        {