sdk/fidl/fuchsia.sysmem/format_modifier.fidl

// 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;

type FormatModifier = struct {
    /// 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.
    value uint64;
};

const FORMAT_MODIFIER_NONE uint64 = 0x0000000000000000;

const FORMAT_MODIFIER_VENDOR_NONE uint64 = 0x0000000000000000;
const FORMAT_MODIFIER_VENDOR_INTEL uint64 = 0x0100000000000000;
const FORMAT_MODIFIER_VENDOR_AMD uint64 = 0x0200000000000000;
const FORMAT_MODIFIER_VENDOR_NVIDIA uint64 = 0x0300000000000000;
const FORMAT_MODIFIER_VENDOR_SAMSUNG uint64 = 0x0400000000000000;
const FORMAT_MODIFIER_VENDOR_QCOM uint64 = 0x0500000000000000;
const FORMAT_MODIFIER_VENDOR_VIVANTE uint64 = 0x0600000000000000;
const FORMAT_MODIFIER_VENDOR_BROADCOM uint64 = 0x0700000000000000;
const FORMAT_MODIFIER_VENDOR_ARM uint64 = 0x0800000000000000;
const FORMAT_MODIFIER_VENDOR_GOOGLE uint64 = 0x0900000000000000;

const FORMAT_MODIFIER_VALUE_RESERVED uint64 = 0x00FFFFFFFFFFFFFF;

const FORMAT_MODIFIER_INVALID uint64 = FORMAT_MODIFIER_VALUE_RESERVED;

@available(added=HEAD)
const FORMAT_MODIFIER_DO_NOT_CARE uint64 = 0x00FFFFFFFFFFFFFE;

const FORMAT_MODIFIER_LINEAR uint64 = 0x0000000000000000;

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

// Intel format modifier values

// Format has a color control surface after the tile data
const FORMAT_MODIFIER_INTEL_CCS_BIT uint64 = 0x1000000;
const FORMAT_MODIFIER_INTEL_I915_X_TILED uint64 = 0x0100000000000001;
const FORMAT_MODIFIER_INTEL_I915_Y_TILED uint64 = 0x0100000000000002;
const FORMAT_MODIFIER_INTEL_I915_YF_TILED uint64 = 0x0100000000000003;

const FORMAT_MODIFIER_INTEL_I915_Y_TILED_CCS uint64 = 0x0100000001000002;
const FORMAT_MODIFIER_INTEL_I915_YF_TILED_CCS uint64 = 0x0100000001000003;

// 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

// bit 0x10 is for using the YUV transform.
const FORMAT_MODIFIER_ARM_YUV_BIT uint64 = 0x10;
// bit 0x20 is for split-block formats.
const FORMAT_MODIFIER_ARM_SPLIT_BLOCK_BIT uint64 = 0x20;
// bit 0x40 is for sparse formats.
const FORMAT_MODIFIER_ARM_SPARSE_BIT uint64 = 0x40;
// bit 0x800 is for variants with buffer content hints.
const FORMAT_MODIFIER_ARM_BCH_BIT uint64 = 0x800;
// bit 0x1000 is for variants with a transaction elimination buffer allocated.
const FORMAT_MODIFIER_ARM_TE_BIT uint64 = 0x1000;
// bit 0x2000 is for variants with tiled headers.
const FORMAT_MODIFIER_ARM_TILED_HEADER_BIT uint64 = 0x2000;
// Not all values are equally useful, so we only have format modifiers for some particularly interesting ones.

// To make the variants with bits set more consistent 0x0800000000000000 is reserved for linear.
const FORMAT_MODIFIER_ARM_AFBC_16X16 uint64 = 0x0800000000000001;
const FORMAT_MODIFIER_ARM_AFBC_32X8 uint64 = 0x0800000000000002;
// Variations with transaction elimination support 0x1000 should be set for these formats.
const FORMAT_MODIFIER_ARM_LINEAR_TE uint64 = 0x0800000000001000;
const FORMAT_MODIFIER_ARM_AFBC_16X16_TE uint64 = 0x0800000000001001;
const FORMAT_MODIFIER_ARM_AFBC_32X8_TE uint64 = 0x0800000000001002;

const FORMAT_MODIFIER_ARM_AFBC_16X16_YUV_TILED_HEADER uint64 = 0x0800000000002011;

const FORMAT_MODIFIER_ARM_AFBC_16X16_SPLIT_BLOCK_SPARSE_YUV uint64 = 0x0800000000000071;
const FORMAT_MODIFIER_ARM_AFBC_16X16_SPLIT_BLOCK_SPARSE_YUV_TE uint64 = 0x0800000000001071;

const FORMAT_MODIFIER_ARM_AFBC_16X16_SPLIT_BLOCK_SPARSE_YUV_TILED_HEADER uint64
        = 0x0800000000002071;
const FORMAT_MODIFIER_ARM_AFBC_16X16_SPLIT_BLOCK_SPARSE_YUV_TE_TILED_HEADER uint64
        = 0x0800000000003071;

// GOOGLE format modifier values
const FORMAT_MODIFIER_GOOGLE_GOLDFISH_OPTIMAL uint64 = 0x0900000000000001;