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sRGB Extension

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sRGB Extension#

API#

sRGB#

Device capabilities may include native support for sRGB image formats. sRGB images may benefit from hardware acceleration on devices that include native support for sRGB. The following psuedo-code demonstrates a sequence for creating an sRGB image:

// Specify single component FLOAT32 format
ze_image_format_t format = {
    ZE_IMAGE_FORMAT_LAYOUT_32, ZE_IMAGE_FORMAT_TYPE_FLOAT,
    ZE_IMAGE_FORMAT_SWIZZLE_R, ZE_IMAGE_FORMAT_SWIZZLE_0, ZE_IMAGE_FORMAT_SWIZZLE_0, ZE_IMAGE_FORMAT_SWIZZLE_1
};

// Specify sRGB image format
ze_srgb_ext_desc_t isSRGB = {
    ZE_STRUCTURE_TYPE_SRGB_EXT_DESC,
    nullptr,
    true
};

ze_image_desc_t imageDesc = {
    ZE_STRUCTURE_TYPE_IMAGE_DESC,
    &isSRGB,
    0, // read-only
    ZE_IMAGE_TYPE_2D,
    format,
    128, 128, 0, 0, 0
};
ze_image_handle_t hImage;
zeImageCreate(hContext, hDevice, &imageDesc, &hImage);

// upload contents from host pointer
zeCommandListAppendImageCopyFromMemory(hCommandList, hImage, nullptr, pImageData, nullptr, 0, nullptr);
...
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