// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

library fuchsia.sysmem;

struct FormatModifier {
    /// The upper 8 bits are a vendor code as allocated in FormatModifierVendor
    /// enum.  The lower 56 bits are vendor-defined.
    ///
    /// This field and the values that go in this field are defined this way for
    /// compatibility reasons.
    uint64 value;
};

const uint64 FORMAT_MODIFIER_NONE = 0x0000000000000000;

const uint64 FORMAT_MODIFIER_VENDOR_NONE = 0x0000000000000000;
const uint64 FORMAT_MODIFIER_VENDOR_INTEL = 0x0100000000000000;
const uint64 FORMAT_MODIFIER_VENDOR_AMD = 0x0200000000000000;
const uint64 FORMAT_MODIFIER_VENDOR_NVIDIA = 0x0300000000000000;
const uint64 FORMAT_MODIFIER_VENDOR_SAMSUNG = 0x0400000000000000;
const uint64 FORMAT_MODIFIER_VENDOR_QCOM = 0x0500000000000000;
const uint64 FORMAT_MODIFIER_VENDOR_VIVANTE = 0x0600000000000000;
const uint64 FORMAT_MODIFIER_VENDOR_BROADCOM = 0x0700000000000000;
const uint64 FORMAT_MODIFIER_VENDOR_ARM = 0x0800000000000000;

const uint64 FORMAT_MODIFIER_VALUE_RESERVED = 0x00FFFFFFFFFFFFFF;

const uint64 FORMAT_MODIFIER_INVALID = FORMAT_MODIFIER_VALUE_RESERVED;

const uint64 FORMAT_MODIFIER_LINEAR = 0x0000000000000000;

//
// Fill in (compatible) values below as needed.
//

// Intel format modifier values
const uint64 FORMAT_MODIFIER_INTEL_I915_X_TILED = 0x0100000000000001;
const uint64 FORMAT_MODIFIER_INTEL_I915_Y_TILED = 0x0100000000000002;
const uint64 FORMAT_MODIFIER_INTEL_I915_YF_TILED = 0x0100000000000003;

// AMD format modifier values

// NVIDIA format modifier values

// SAMSUNG format modifier values

// QCOM format modifier values

// VIVANTE format modifier values

// BROADCOM format modifier values

// ARM format modifier values
const uint64 FORMAT_MODIFIER_ARM_AFBC_16x16 = 0x0800000000000001;
const uint64 FORMAT_MODIFIER_ARM_AFBC_32x8 = 0x0800000000000002;