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vkd3d/ChangeLog.md
Henri Verbeet 5c00766eff Release 1.14.
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What's new in vkd3d 1.14 (21 November 2024)

libvkd3d

  • Depth bounds can be changed dynamically using the OMSetDepthBounds() method of the ID3D12GraphicsCommandList1 interface.

  • The new VKD3D_CAPS_OVERRIDE environment variable can be used to override the value of capabilities like the maximum feature level and resource binding tier reported to applications.

libvkd3d-shader

  • New features for the HLSL source type:

    • Interstage I/O variable packing matches d3dcompiler/fxc more closely.
    • The following intrinsic functions are supported:
      • dst()
      • f32tof16()
      • mad()
      • modf()
      • sincos()
    • ‘discard’ support for shader model 1-3 target profiles.
    • The ‘SV_SampleIndex’ input semantic for fragment shaders.
    • The ‘SV_GroupIndex’ input semantic for compute shaders.
    • The ‘earlydepthstencil’ function attribute.
    • Constant folding of expressions like ‘x && c’ and ‘x || c’, where ‘c’ is a constant.
    • Preprocessor support for namespaces in macro identifiers. I.e., syntax like ‘#define NAME1::NAME2::NAME3 1’ works as intended now.
    • Structure inheritance. Multiple inheritance is not supported.
    • Register assignments for unused constant buffers are allowed to overlap register assignments for used constant buffers.
    • Instruction count reflection data for shader model 4+ target profiles. This data is contained in the ‘STAT’ DXBC section, and can be queried with the GetDesc() method of the ID3D11ShaderReflection and ID3D12ShaderReflection interfaces. Note that the ID3D12ShaderReflection implementation provided by vkd3d-utils does not currently correctly report this information.
    • ‘unorm’ and ‘snorm’ resource format modifiers. For example, ‘Texture2D t;’
    • Parser support for ‘ByteAddressBuffer’ resources, as well as their Load()/Load2()/Load3()/Load4() methods.
    • Parser support for ‘RWByteAddressBuffer’ resources, as well as their Store()/Store2()/Store3()/Store4() methods.
    • Parser support for the ‘compile’ keyword, as well as the CompileShader() and ConstructGSWithSO() intrinsic functions. Actual compilation of embedded shaders is not implemented yet, but parser support is sufficient for allowing compilation of HLSL sources containing this syntax to succeed when targetting shader target profiles like ‘vs_5_0’ or ‘ps_5_0’.
    • Initial support for tessellation shaders. Only the most trivial shaders are supported in this release. Perhaps most notably, both ‘InputPatch’ and ‘OutputPatch’ are not implemented yet.

  • The new ‘fx’ source type can be used in combination with the ‘d3d-asm’ target type to disassemble binary effects.

  • More complete support for fx_2_0 binary effect output, including support for annotations, default values, as well as object initialiser data used for e.g. string, texture, and shader objects.

  • A significant number of instructions have been implemented for the experimental GLSL target. The GLSL output currently targets version 4.40 without extensions, but the intention is to make this configurable in a future release of vkd3d.

  • Experimental support for Metal Shading Language (MSL) output, enabled by building vkd3d with the ‘-DVKD3D_SHADER_UNSUPPORTED_MSL’ preprocessor option. The current release is only able to compile the most basic shaders when targetting MSL. Being an experimental feature, both the ABI and API may change in future releases; the feature may even go away completely. Nevertheless, we hope our users find this feature useful, and welcome feedback and contributions.

  • Shader code generation for various legacy fixed-function features, including clip planes, point sizes, and point sprites. This is mainly relevant for executing shader model 1-3 sources in modern target environments like Vulkan, because those target environments do not implement equivalent fixed-function features.

  • The amount of shader validation done by the internal validator has been greatly extended. The validator is enabled by the ‘force_validation’ option, specified through the VKD3D_SHADER_CONFIG environment variable.

  • New interfaces:

    • The VKD3D_SHADER_COMPILE_OPTION_DOUBLE_AS_FLOAT_ALIAS flag specifies that the ‘double’ type behaves as an alias for the ‘float’ type in HLSL sources with shader model 1-3 target profiles.
    • The VKD3D_SHADER_PARAMETER_DATA_TYPE_FLOAT32_VEC4 enumeration value specifies that a shader parameter contains a 4-dimensional vector of 32-bit floating-point data.
    • The VKD3D_SHADER_PARAMETER_NAME_CLIP_PLANE_MASK shader parameter specifies which clip planes are enabled.
    • The VKD3D_SHADER_PARAMETER_NAME_CLIP_PLANE_[0-7] shader parameters specify the corresponding clip planes.
    • The VKD3D_SHADER_PARAMETER_NAME_POINT_SIZE shader parameter specifies the point size to output when the source shader does not explicitly output a point size.
    • The VKD3D_SHADER_PARAMETER_NAME_POINT_SIZE_MIN shader parameter specifies the minimum point size to clamp point size outputs to.
    • The VKD3D_SHADER_PARAMETER_NAME_POINT_SIZE_MAX shader parameter specifies the maximum point size to clamp point size outputs to.
    • The VKD3D_SHADER_PARAMETER_NAME_POINT_SPRITE shader parameter specifies whether texture coordinate inputs in fragment shaders should be replaced with point coordinates.
    • The VKD3D_SHADER_SOURCE_FX source type specifies binary Direct3D effects.
    • The VKD3D_SHADER_TARGET_MSL target type specifies Metal Shading Language shaders.

libvkd3d-utils

  • The GetDesc() method of the ID3D12ShaderReflection interface returned by D3DReflect() returns shader version information.

  • New interfaces:

    • D3DCompile2VKD3D() is a variant of D3DCompile2() that allows targeting the behaviour of a specific d3dcompiler version.

vkd3d-compiler

  • The ‘--alias-double-as-float’ option specifies that the ‘double’ type behaves as an alias for the ‘float’ type in HLSL sources with shader model 1-3 target profiles.

  • The ‘fx’ source type specifies binary Direct3D effects.

  • The ‘msl’ target type specifies Metal Shading Language shaders.

What's new in vkd3d 1.13 (29 August 2024)

libvkd3d

  • The ID3D12CommandList6 interface is supported.

  • Block-compressed textures can be created with unaligned dimensions. This corresponds to D3D12_FEATURE_D3D12_OPTIONS8.UnalignedBlockTexturesSupported.

  • Some minor issues pointed out by the Vulkan validation layers have been addressed. These are not known to affect applications in practice, but should make libvkd3d slightly more well-behaved.

libvkd3d-shader

  • New features for the HLSL source type:

    • Basic loop unrolling support. Some of the more complicated cases like loops containing conditional jumps are still unsupported.
    • Initialisation values for global variables, function parameters, and annotation variables are parsed and stored in output formats supporting them.
    • Shader model 5.1 register spaces are supported when using the corresponding target profiles, as well as shader model 5.1 reflection data.
    • Register reservations support expressions as offsets. For example: ‘float f : register(c0[1 + 1 * 2]);’
    • The tex1D(), tex2D(), tex3D(), and texCUBE() intrinsic function variants with explicit derivatives are supported.
    • The following intrinsic functions are supported:
      • asint()
      • f16tof32()
      • faceforward()
      • GetRenderTargetSampleCount()
      • rcp()
      • tex2Dbias()
      • tex1Dgrad(), tex2Dgrad(), tex3Dgrad(), and texCUBEgrad()
    • The sin() and cos() intrinsic functions are supported in shader model 1-3 profiles. These were already supported in shader model 4+ profiles.
    • The following features specific to effects target profiles:
      • Types supported in version 4.0+:
        • BlendState
        • ComputeShader, DomainShader, GeometryShader, and HullShader
        • DepthStencilState
        • RasterizerState
      • State application functions implemented for version 4.0+ effects:
        • OMSetRenderTargets()
        • SetBlendState()
        • SetComputeShader(), SetDomainShader(), SetGeometryShader(), SetHullShader(), SetPixelShader(), and SetVertexShader()
        • SetDepthStencilState()
        • SetRasterizerState()
      • String types. These are mainly used for annotations.
      • Annotations on global variables.
      • Support for the ‘Texture’ field of the ‘SamplerState’ type.
      • Support for NULL values.
    • Stores to swizzled matrix variables.
    • The ‘unsigned’ type modifier is supported. (For example, ‘unsigned int’.) Note that ‘uint’ and related types were already supported.
    • ‘ConstantBuffer<>’ types.
    • The ‘SV_Coverage’ output semantic for fragment shaders.

  • The experimental DXIL source type supports quad group operations.

  • The Direct3D shader model 2-3 ‘texldb’ instruction is correctly disassembled when outputting Direct3D shader assembly.

  • New interfaces:

    • The vkd3d_shader_parameter_info structure extends the vkd3d_shader_compile_info structure, and can be used to specify shader parameters. This is a more generic version of the shader parameter interface for SPIR-V targets in struct vkd3d_shader_spirv_target_info.
    • The VKD3D_SHADER_PARAMETER_DATA_TYPE_FLOAT32 enumeration value specifies that a shader parameter contains 32-bit floating-point data.
    • The VKD3D_SHADER_PARAMETER_NAME_ALPHA_TEST_FUNC shader parameter specifies the alpha test function.
    • The VKD3D_SHADER_PARAMETER_NAME_ALPHA_TEST_REF shader parameter specifies the alpha test reference value.
    • The VKD3D_SHADER_PARAMETER_NAME_FLAT_INTERPOLATION shader parameter specifies the interpolation mode for colour inputs in Direct3D shader model 1-3 fragment shaders.
    • The VKD3D_SHADER_PARAMETER_TYPE_BUFFER enumeration value specifies that the value of a shader parameter is provided at run-time through a buffer resource.

What's new in vkd3d 1.12 (28 May 2024)

libvkd3d

  • When the VK_EXT_fragment_shader_interlock extension is available, libvkd3d supports rasteriser-ordered views.

  • Compute pipeline state objects can be created from compute shaders with embedded root signatures.

  • When supported by the underlying Vulkan implementation, libvkd3d supports the DXGI_FORMAT_B5G6R5_UNORM, DXGI_FORMAT_B5G5R5A1_UNORM, and DXGI_FORMAT_B4G4R4A4_UNORM formats.

  • The ID3D12ShaderCacheSession interface is supported.

  • The ID3D12Device9 interface is supported.

  • The CreateCommittedResource2(), CreatePlacedResource1(), GetCopyableFootprints1(), and GetResourceAllocationInfo2() methods of the ID3D12Device8 interface are implemented.

  • Several new feature queries are supported:

    • D3D12_FEATURE_D3D12_OPTIONS14
    • D3D12_FEATURE_D3D12_OPTIONS15
    • D3D12_FEATURE_D3D12_OPTIONS16
    • D3D12_FEATURE_D3D12_OPTIONS17
    • D3D12_FEATURE_D3D12_OPTIONS18

libvkd3d-shader

  • The experimental DXIL source type supports the majority of Direct3D shader model 6.0 instructions and features. Note that this is currently still an unsupported feature, enabled by building vkd3d with the ‘-DVKD3D_SHADER_UNSUPPORTED_DXIL’ preprocessor option. No API or ABI stability guarantees are provided for experimental features.

  • New features for the HLSL source type:

    • Support for compiling directly to Direct3D shader assembly and SPIR-V target types. This is primarily a convenience feature, as targeting these could previously be achieved by going through either the ‘Legacy Direct3D byte-code’ or ‘Tokenized Program Format’ formats as intermediates.
    • Improved support for shader model 1-3 profiles. In particular:
      • The ternary, comparison, and logical operators are now supported for these profiles.
      • Support for integer and Boolean types has been improved.
      • Shader constants are allocated in an order compatible with the Microsoft implementation.
    • More complex array size expressions. For example, matrix and vector swizzles are allowed, as well as (constant) array dereferences.
    • The following intrinsic functions are supported:
      • cosh()
      • determinant()
      • refract()
      • sinh()
      • tanh()
    • Reflection data for ‘Tokenized Program Format’ targets more accurately reflects the source shader.
    • Constant folding of expressions like ‘x + 0’ and ‘x * 1’.
    • Support for the ‘single’ qualifier on constant buffer declarations.
    • Parser support for annotations on constant buffer declarations.
    • Parser support for effect state objects.

  • When the SPV_EXT_fragment_shader_interlock extension is supported, SPIR-V targets support rasteriser-ordered views.

  • New interfaces:

    • The VKD3D_SHADER_PARSE_DXBC_IGNORE_CHECKSUM flag indicates that vkd3d_shader_parse_dxbc() should skip validating the checksum of the DXBC blob. This allows otherwise valid blobs with a missing or invalid checksum to be parsed.
    • The VKD3D_SHADER_SPIRV_ENVIRONMENT_VULKAN_1_1 enumeration value specifies the Vulkan 1.1 environment for SPIR-V targets. Most notably, the Vulkan 1.1 environment implies support for SPIR-V 1.3, which is a requirement for supporting Direct3D shader model 6 wave operations on SPIR-V targets.
    • The VKD3D_SHADER_SPIRV_EXTENSION_EXT_FRAGMENT_SHADER_INTERLOCK enumeration value indicates support for the SPV_EXT_fragment_shader_interlock extension in the SPIR-V target environment.
    • The VKD3D_SHADER_COMPILE_OPTION_FEATURE_WAVE_OPS flag indicates support for Direct3D shader model 6 wave operations in the SPIR-V target environment.
    • The VKD3D_SHADER_COMPILE_OPTION_FORMATTING_IO_SIGNATURES flag indicates that vkd3d_shader_compile() should include information about input, output, and patch constant shader signatures when targeting Direct3D shader assembly. Note that this is a libvkd3d-shader extension, and potentially makes the output incompatible with other implementations.
    • The VKD3D_SHADER_COMPILE_OPTION_CHILD_EFFECT compile option specifies whether libvkd3d-shader should produce child effects for ‘fx_4_0’ and ‘fx_4_1’ HLSL target profiles.
    • The VKD3D_SHADER_COMPILE_OPTION_INCLUDE_EMPTY_BUFFERS_IN_EFFECTS compile option specifies whether empty constant buffer descriptions should be included in the output for ‘fx_4_0’ and ‘fx_4_1’ HLSL target profiles.
    • The VKD3D_SHADER_COMPILE_OPTION_WARN_IMPLICIT_TRUNCATION compile option specifies whether the HLSL compiler should emit warnings for vector and matrix truncation in implicit type conversions.

libvkd3d-utils

  • D3D12CreateDeviceVKD3D() and D3D12CreateDevice() no longer require the VK_KHR_surface and VK_KHR_swapchain extensions to be available. This allows them to be used in environments with a windowing system, for example for off-screen rendering and compute tasks.

  • The GetConstantBufferByIndex() and GetResourceBindingDesc() methods of the ID3D12ShaderReflection interface are implemented.

  • The GetVariableByIndex() method of the ID3D12ShaderReflectionConstantBuffer interface is implemented.

  • The GetMemberTypeByIndex() method of the ID3D12ShaderReflectionType interface is implemented.

  • The GetType() method of the ID3D12ShaderReflectionVariable interface is implemented.

vkd3d-compiler

  • The ‘+signatures’ flag for the ‘--formatting’ option can be used to specify that vkd3d-compiler should include information about input, output, and patch constant shader signatures when outputting Direct3D shader assembly. Note that this is a vkd3d-compiler extension, and potentially makes the output incompatible with other implementations.

  • The ‘--child-effect’ option can be used to specify that vkd3d-compiler should produce child effects for ‘fx_4_0’ and ‘fx_4_1’ HLSL target profiles.

  • The ‘--fx-include-empty-buffers’ option can be used to specify that vkd3d-compiler should include empty constant buffer descriptions in the output for ‘fx_4_0’ and ‘fx_4_1’ HLSL target profiles.

vkd3d-dxbc

  • The ‘--ignore-checksum’ option can be used to specify that vkd3d-dxbc should skip validating the checksum of the DXBC input blob. This allows vkd3d-dxbc to operate on otherwise valid blobs with missing or invalid checksums.

  • The ‘--emit’ option can be used to indicate that vkd3d-dxbc should output a new DXBC blob.

  • The ‘--extract’ option can be used to specify a section to extract out of the input blob. For example, ‘vkd3d-dxbc -x t:PRIV blob.dxbc > priv.bin’ would extract the private data section of ‘blob.dxbc’ to ‘priv.bin’, and ‘vkd3d-dxbc -x t:RTS0 blob.dxbc > root_signature.bin’ would extract the root signature to ‘root_signature.bin’.

  • The ‘--output’ option can be used to specify where vkd3d-dxbc should write its output for the ‘--emit’ and ‘--extract’ options.

What's new in vkd3d 1.11 (5 Mar 2024)

libvkd3d

  • Descriptor updates happen asynchronously on an internal worker thread, for a minor performance improvement in applications that update many descriptors per frame.

  • When the VK_EXT_mutable_descriptor_type extension is available, libvkd3d will make more efficient use of descriptor pools and sets.

  • When the VK_EXT_shader_viewport_index_layer extension is available, libvkd3d supports indexing viewport and render target arrays from vertex and tessellation evaluation shaders.

  • Support for standard (i.e., black and white) border colours is implemented.

  • The GetResourceAllocationInfo1() method of the ID3D12Device4 interface is implemented.

  • The ID3D12Device7 interface is supported.

  • The ID3D12Resource2 interface is supported.

  • Several new feature queries are supported:

    • D3D12_FEATURE_D3D12_OPTIONS6
    • D3D12_FEATURE_D3D12_OPTIONS7
    • D3D12_FEATURE_D3D12_OPTIONS8
    • D3D12_FEATURE_D3D12_OPTIONS9
    • D3D12_FEATURE_D3D12_OPTIONS10
    • D3D12_FEATURE_D3D12_OPTIONS11
    • D3D12_FEATURE_D3D12_OPTIONS12
    • D3D12_FEATURE_D3D12_OPTIONS13

libvkd3d-shader

  • Initial support for compiling legacy Direct3D bytecode to SPIR-V.

  • Experimental support for compiling DirectX Intermediate Language (DXIL) to SPIR-V and Direct3D shader assembly. Being an experimental feature, this requires building vkd3d with the ‘-DVKD3D_SHADER_UNSUPPORTED_DXIL’ preprocessor option. Note that enabling this feature will affect the capabilities reported by libvkd3d as well, and may cause previously working applications to break due to attempting to use incomplete DXIL support. No API or ABI stability guarantees are provided for experimental features.

  • New features for the HLSL source type:

    • Initial support for the ‘fx_2_0’, ‘fx_4_0’, ‘fx_4_1’, and ‘fx_5_0’ profiles, using the new ‘VKD3D_SHADER_TARGET_FX’ target type.
    • Support for ‘Buffer’ resources.
    • The acos(), asin(), atan(), and atan2() intrinsic functions are supported.
    • Explicit register assignment using the ‘register()’ keyword in shader model 1-3 profiles. This was previously only supported in shader model 4+ profiles.
    • Casts from integer to floating-point types in shader model 1-3 profiles.
    • Support for various input/output semantics:
      • SV_InstanceID in shader model 4+ fragment shaders.
      • SV_PrimitiveID in shader model 4+ fragment shaders. In previous versions this was only supported in shader model 4+ geometry shaders.
      • SV_RenderTargetArrayIndex in shader model 4+ vertex and fragment shaders.
      • SV_ViewportArrayIndex in shader model 4+ vertex and fragment shaders.
    • Support for various rasteriser-ordered view types. Specifically:
      • RasterizerOrderedBuffer
      • RasterizerOrderedStructuredBuffer
      • RasterizerOrderedTexture1D
      • RasterizerOrderedTexture1DArray
      • RasterizerOrderedTexture2D
      • RasterizerOrderedTexture2DArray
      • RasterizerOrderedTexture3D

  • New features for the SPIR-V target type:

    • Support for globally coherent unordered access views. These have the ‘globallycoherent’ storage class in HLSL, and the ‘_glc’ suffix in Direct3D assembly.
    • Support for thread group unordered access view barriers. This corresponds to ‘sync_ugroup’ instructions in Direct3D assembly.
    • When the SPV_EXT_viewport_index_layer extension is supported, vertex and tessellation evaluation shaders can write render target and viewport array indices. This corresponds to the ‘SV_RenderTargetArrayIndex’ and ‘SV_ViewportArrayIndex’ HLSL output semantics.

  • New interfaces:

    • The VKD3D_SHADER_COMPILE_OPTION_FEATURE compile option can be used to specify features available in the target environment. The VKD3D_SHADER_COMPILE_OPTION_FEATURE_INT64 flag indicates support for 64-bit integer types in the SPIR-V target environment. The VKD3D_SHADER_COMPILE_OPTION_FEATURE_FLOAT64 flag indicates support for 64-bit floating-point types in the SPIR-V target environment. For backward compatibility, VKD3D_SHADER_API_VERSION_1_10 and earlier also imply support for 64-bit floating-point types.
    • The VKD3D_SHADER_SPIRV_EXTENSION_EXT_VIEWPORT_INDEX_LAYER enumeration value indicates support for the SPV_EXT_viewport_index_layer extension in the SPIR-V target environment.

libvkd3d-utils

  • When available, the following Vulkan extensions are enabled by D3D12CreateDeviceVKD3D() and D3D12CreateDevice():

    • VK_KHR_android_surface
    • VK_KHR_wayland_surface
    • VK_KHR_win32_surface
    • VK_KHR_xlib_surface
    • VK_EXT_metal_surface
    • VK_MVK_ios_surface

    Previous versions of vkd3d-utils enabled VK_KHR_xcb_surface and VK_MVK_macos_surface. In practice this means that D3D12CreateDevice()/D3D12CreateDeviceVKD3D() can be used on the corresponding additional window systems.

  • New interfaces:

    • D3DReflect() is used to retrieve information about shaders. It currently supports retrieving information about input, output, and patch constant parameters using the ID3D12ShaderReflection interface.
    • D3DDisassemble() is used to disassemble legacy Direct3D bytecode (shader model 1-3) and ‘Tokenized Program Format’ (shader model 4 and 5) shaders.

vkd3d-compiler

  • The new ‘fx’ target is used for outputting Direct3D effects when compiling HLSL ‘fx_2_0’, ‘fx_4_0’, ‘fx_4_1’, and ‘fx_5_0’ profiles.

build

  • The minimum required version of Vulkan-Headers for this release is version 1.3.228.

What's new in vkd3d 1.10 (6 Dec 2023)

libvkd3d

  • Creating pipeline state objects from pipeline state stream descriptions is implemented.
  • Depth-bounds testing is implemented.
  • When the VK_KHR_maintenance2 extension is available, libvkd3d will explicitly specify the usage flags of Vulkan image views. This is particularly useful on MoltenVK, where 2D-array views of 3D textures are subject to usage restrictions.
  • The D3D12_FORMAT_SUPPORT2_UAV_TYPED_LOAD and/or D3D12_FORMAT_SUPPORT2_UAV_TYPED_STORE feature flags are reported for UAV formats when the ‘shaderStorageImageReadWithoutFormat’ and/or ‘shaderStorageImageWriteWithoutFormat’ Vulkan device features are supported.
  • The ID3D12Device5 interface is supported.
  • The ID3D12GraphicsCommandList5 interface is supported.
  • The ID3D12Resource1 interface is supported.

libvkd3d-shader

  • New features for the HLSL source type:

    • Support for the following intrinsic functions:
      • ceil()
      • degrees() and radians()
      • fwidth()
      • tan()
      • tex2Dlod(), tex2Dproj(), texCUBEproj(), and tex3Dproj()
    • Constant folding support for more expression types. In particular:
      • ternary operators and branches
      • reciprocal square roots
      • exponentials
      • logical ‘not’ on booleans
      • bitwise complements
      • left/right shifts
      • ceil(), floor(), frac(), and saturate()
    • Support for dynamic indexing of arrays.
    • Support for ‘break’ and ‘continue’ statements.
    • Support for ‘switch’ statements.
    • The ‘linear’, ‘centroid’, and ‘noperspective’ interpolation modifiers are supported.
    • The ‘RWTexture1DArray’ and ‘RWTexture2DArray’ unordered access view types are supported.
    • ‘[loop]’ attributes are accepted on loops.
    • u/U and l/L suffixes on integer constants.

  • Floating-point values are explicitly clamped to the upper and lower bounds of the target type by ‘ftoi’ and ‘ftou’ instructions when targeting SPIR-V. Similarly, NaNs are flushed to zero. Some hardware/drivers would already do this implicitly, but behaviour for such inputs is undefined as far as SPIR-V is concerned.

  • The VKD3D_SHADER_CONFIG environment variable can be used to modify the behaviour of libvkd3d-shader at run-time, analogous to the existing VKD3D_CONFIG environment variable for libvkd3d. See the README for a list of supported options.

  • When scanning legacy Direct3D bytecode using vkd3d_shader_scan(), descriptor information for shader model 2 and 3 combined resource-sampler pairs is returned in the vkd3d_shader_scan_descriptor_info structure. Note that this information is not yet available for shader model 1 sources, although this will likely be added in a future release.

  • The Direct3D shader assembly target supports the ‘rasteriser ordered view’ flag (‘_rov’) on unordered access view declarations.

  • New interfaces:

    • The VKD3D_SHADER_COMPILE_OPTION_BACKWARD_COMPATIBILITY compile option can be used to specify backward compatibility options. The VKD3D_SHADER_COMPILE_OPTION_BACKCOMPAT_MAP_SEMANTIC_NAMES flag is the only currently supported flag, and can be used to specify that shader model 1-3 semantic names should be mapped to their shader model 4+ system value equivalents when compiling HLSL sources.
    • The VKD3D_SHADER_COMPILE_OPTION_FRAGMENT_COORDINATE_ORIGIN compile option can be used to specify the origin of fragment coordinates for SPIR-V targets. This is especially useful in OpenGL environments, where the origin may be different than in Direct3D or Vulkan environments.
    • The vkd3d_shader_scan_combined_resource_sampler_info structure extends the vkd3d_shader_compile_info structure, and can be used to retrieve information about the combined resource-sampler pairs used by a shader. This is especially useful when compiling shaders for usage in environments without separate binding points for samplers and resources, like OpenGL.
    • vkd3d_shader_free_scan_combined_resource_sampler_info() is used to free vkd3d_shader_scan_combined_resource_sampler_info structures.

libvkd3d-utils

  • Passing the D3DCOMPILE_ENABLE_BACKWARDS_COMPATIBILITY flag to D3DCompile() and D3DCompile2() will enable mapping shader model 1-3 semantic names to their shader model 4+ system value equivalents.

  • New interfaces:

    • D3DGetBlobPart() is used to retrieve specific parts of DXBC blobs.
    • D3DGetDebugInfo() is used to retrieve debug information from DXBC blobs.
    • D3DGetInputAndOutputSignatureBlob() is used to retrieve input and output signatures from DXBC blobs.
    • D3DGetInputSignatureBlob() is used to retrieve input signatures from DXBC blobs.
    • D3DGetOutputSignatureBlob() is used to retrieve output signatures from DXBC blobs.
    • D3DStripShader() is used to remove specific parts from DXBC blobs.

vkd3d-compiler

  • The ‘--fragment-coordinate-origin’ option can be used to specify the origin of fragment coordinates for SPIR-V targets.

  • The ‘--semantic-compat-map’ option can be used to specify that shader model 1-3 semantic names should be mapped to their shader model 4+ system value equivalents when compiling HLSL sources.

vkd3d-dxbc

  • The ‘--list’ and ‘--list-data’ options now also output the offsets of sections inside the input data.

build

  • The minimum required version of Vulkan-Headers for this release is version 1.2.148.

  • When available, the libEGL and libOpenGL libraries are used to run the vkd3d tests in additional configurations. These libraries are not used by vkd3d itself.

  • The SONAME_LIBDXCOMPILER configure variable can be used specify the shared object name of the dxcompiler library. When available, it's used to run the vkd3d tests in additional configurations. The dxcompiler library is not used by vkd3d itself.

What's new in vkd3d 1.9 (21 Sep 2023)

libvkd3d

  • Copying between depth/stencil and colour formats in ID3D12GraphicsCommandList::CopyResource() is supported.
  • The ID3D12Fence1 interface is supported.

libvkd3d-shader

  • vkd3d_shader_scan() supports retrieving descriptor information for ‘d3dbc’ shaders. This is one of the requirements for eventual SPIR-V generation from ‘d3dbc’ sources.

  • New features for the HLSL source type:

    • Support for the following intrinsic functions:
      • clip()
      • ddx_coarse() and ddy_coarse()
      • ddx_fine() and ddy_fine()
      • tex1D(), tex2D(), texCUBE(), and tex3D()
    • Constant folding support for more expression types. In particular:
      • comparison operators
      • floating-point min() and max()
      • logical ‘and’ and ‘or’
      • dot products
      • square roots
      • logarithms
    • Support for multi-sample texture object declarations without explicit sample counts in shader model 4.1 and later shaders.
    • Support for using constant expressions as sample counts in multi-sample texture object declarations.
    • Support for variable initialisers using variables declared earlier in the same declaration list. E.g., ‘float a = 1, b = a, c = b + 1;’.
    • The GetDimensions() texture object method is implemented.
    • Matrix swizzles are implemented.
    • Parser support for if-statement attributes like ‘[branch]’ and ‘[flatten]’.
    • Support for the ‘inline’ function modifier.

  • Previously, vkd3d_shader_compile() would in some cases return VKD3D_OK despite compilation failing when targeting legacy Direct3D bytecode. These cases have been fixed.

  • Various HLSL preprocessor fixes for edge cases related to stringification.

  • SPIR-V target support for the ‘linear noperspective centroid’ input interpolation mode.

  • New interfaces:

    • The vkd3d_shader_scan_signature_info structure extends the vkd3d_shader_compile_info structure, and can be used to retrieve descriptions of ‘dxbc-tpf’ and ‘d3dbc’ shader inputs and outputs.
    • vkd3d_shader_free_scan_signature_info() is used to free vkd3d_shader_scan_signature_info structures.
    • The VKD3D_SHADER_COMPILE_OPTION_PACK_MATRIX_ORDER compile option can be used to specify the default matrix packing order for HLSL sources.
    • The vkd3d_shader_varying_map_info structure extends the vkd3d_shader_compile_info structure, and can be used to specify a mapping between the outputs of a shader stage and the inputs of the next shader stage.
    • vkd3d_shader_build_varying_map() is used to build a mapping between the outputs of a shader stage and the inputs of the next shader stage.
    • The VKD3D_SHADER_DESCRIPTOR_INFO_FLAG_RAW_BUFFER flag returned as part of the vkd3d_shader_descriptor_info structure indicates the descriptor refers to a byte-addressed (‘raw’) buffer resource.

vkd3d-compiler

  • The ‘--matrix-storage-order’ option can used to specify the default matrix storage order for HLSL sources.

vkd3d-dxbc

  • vkd3d-dxbc is a new utility that can be used to inspect the contents of DXBC blobs.

What's new in vkd3d 1.8 (22 Jun 2023)

libvkd3d

  • Performance improvements have been made to the code that handles descriptor updates. In some applications the improvement can be quite significant.

  • Host-visible descriptor heaps are persistently mapped on creation. Some applications access resource data from the CPU after calling Unmap(), and that's supposed to work in practice.

  • 1-dimensional texture unordered-access views and shader resource views are implemented.

  • Shader resource view, unordered access view, and constant buffer view root descriptors with NULL GPU addresses are supported.

  • Direct3D 12 descriptor heap destruction is delayed until all contained resources are destroyed.

libvkd3d-shader

  • New features for the HLSL source type:

    • Support for the ternary conditional operator "?:".
    • Support for "discard" statements.
    • Support for the "packoffset" keyword.
    • Support for semantics on array types.
    • Support for RWBuffer loads and stores.
    • Register allocation for arrays and structures of resources and samplers is implemented.
    • Support for the SV_IsFrontFace pixel shader system-value semantics.
    • Support for using constant expressions as array sizes and indices.
    • Support for dynamic selection of vector components.
    • Support for the following intrinsic functions:
      • D3DCOLORtoUBYTE4()
      • any()
      • asfloat()
      • ddx() and ddy()
      • fmod()
      • log(), log2(), and log10()
      • sign()
      • trunc()
    • The SampleBias(), SampleCmp(), SampleCmpLevelZero(), and SampleGrad() texture object methods are implemented.
    • Support for the case-insensitive variants of the "vector" and "matrix" data types.
    • Parser support for the "unroll" loop attribute. A warning is output for "unroll" without iteration count, and an error is output when an iteration count is specified. Actual unrolling is not implemented yet.
    • Parser support for RWStructuredBuffer resources.
    • Parser support for SamplerComparisonState objects. Note that outputting compiled effects is not supported yet, but parsing these allows shaders containing SamplerComparisonState state objects to be compiled.

  • More improvements to HLSL support for the Direct3D shader model 1/2/3 profiles.

  • The section alignment of DXBC blobs produced by vkd3d_shader_serialize_dxbc() matches those produced by d3dcompiler more closely.

  • The "main" function for shaders produced by the SPIR-V target is always terminated, even when the source was a TPF shader without explicit "ret" instruction.

  • Relative addressing of shader input registers is supported by SPIR-V targets.

What's new in vkd3d 1.7 (23 Mar 2023)

libvkd3d-shader

  • New features for the HLSL source type:

    • Support for calling user-defined functions.
    • Support for array parameters to user-defined functions.
    • Much improved support for the Direct3D shader model 1/2/3 profiles.
    • Support for the SV_DispatchThreadID, SV_GroupID, and SV_GroupThreadID compute shader system-value semantics.
    • Support for the optional "offset" parameter of the texture object Load() method.
    • Support for the all() intrinsic function.
    • Support for the distance() intrinsic function.
    • Support for the exp() and exp2() intrinsic functions.
    • Support for the frac() intrinsic function.
    • Support for the lit() intrinsic function.
    • Support for the reflect() intrinsic function.
    • Support for the sin() and cos() intrinsic functions.
    • Support for the smoothstep() intrinsic function.
    • Support for the sqrt() and rsqrt() intrinsic functions.
    • Support for the step() intrinsic function.
    • Support for the transpose() intrinsic function.
    • Support for the case-insensitive variants of the "float" and "dword" data types.
    • Partial support for minimum precision data types like "min16float". These are currently interpreted as their regular counterparts.
    • Improved constant propagation support, in particular to constant propagation through swizzles.

  • HLSL static variables are now properly zero-initialised.

  • The Direct3D shader model 4 and 5 disassembler outputs sample counts for multi-sampled resource declarations.

  • New interfaces:

    • vkd3d_shader_parse_dxbc() provides support for parsing DXBC blobs.
    • vkd3d_shader_serialize_dxbc() provides support for serialising DXBC blobs.
    • vkd3d_shader_free_dxbc() is used to free vkd3d_shader_dxbc_desc structures, as returned by vkd3d_shader_parse_dxbc().
    • The VKD3D_SHADER_COMPILE_OPTION_WRITE_TESS_GEOM_POINT_SIZE compile option can be used to specify whether SPIR-V shaders targeting Vulkan environments should write point sizes for geometry and tessellation shaders. If left unspecified, point sizes will be written.

What's new in vkd3d 1.6 (7 Dec 2022)

libvkd3d-shader

  • New features for the HLSL source type:

    • Initial support for compute shaders.
    • Improved support for initialisation and assignment of compound objects like structures and arrays, including casts and implicit conversions.
    • Support for loads and stores of texture resource unordered-access views.
    • Support for function attributes. In particular, the required "numthreads" attribute for compute shader entry points is now supported.
    • Support for the asuint() intrinsic function.
    • Support for the length() intrinsic function.
    • Support for the normalize() intrinsic function.
    • Support for integer division and modulus.
    • Support for taking the absolute value of integers.
    • Support for floating-point modulus.

  • New interfaces:

    • The VKD3D_SHADER_DESCRIPTOR_INFO_FLAG_UAV_ATOMICS descriptor info flag is used to indicate that atomic operations are used on unordered-access view descriptors.

libvkd3d-common

  • vkd3d debug output is prefixed with "vkd3d:" in order to make it easier to distinguish from output produced by applications or other libraries.

demos

  • The demos now use libvkd3d-shader to compile HLSL shaders at run-time.

What's new in vkd3d 1.5 (22 Sep 2022)

libvkd3d-shader

  • New features for the HLSL source type:

    • Improved support for HLSL object types (like e.g. ‘Texture2D’) inside structures and arrays.
    • Implicitly sized array initialisers.
    • Support for the dot() intrinsic function.
    • Support for the ldexp() intrinsic function.
    • Support for the lerp() intrinsic function.
    • Support for the logical ‘and’, ‘or’, and ‘not’ operators in shader model 4 and 5 targets.
    • Support for casts from ‘bool’ types in shader model 4 and 5 targets.
    • Constant folding for integer bitwise operations.
    • Constant folding for integer min() and max().

  • New interfaces:

    • The VKD3D_SHADER_COMPILE_OPTION_TYPED_UAV compile option can be used to specify the SPIR-V format to use for typed unordered access view loads. When set to ‘Unknown’, and the ‘shaderStorageImageReadWithoutFormat’ feature is enabled in the target environment, this allows typed loads from multicomponent format unordered access views. If left unspecified, a R32 format will be used, like in previous versions of libvkd3d-shader.

What's new in vkd3d 1.4 (22 Jun 2022)

libvkd3d

  • A new descriptor heap implementation using the VK_EXT_descriptor_indexing extension. In particular, the new implementation is more efficient when large descriptor heaps are used by multiple command lists. The new ‘virtual_heaps’ configuration option can be used to select the original implementation even when the VK_EXT_descriptor_indexing extension is available.

  • A new fence implementation using the VK_KHR_timeline_semaphore extension. The new implementation addresses a number of edge cases the original implementation was unable to, as well as being somewhat more efficient.

  • When the VK_EXT_robustness2 extension is available, it is used to implement null views. This more accurately matches Direct3D 12 behaviour. For example, all reads from such a null view return zeroes, while that isn't necessarily the case for out-of-bounds reads with the original implementation.

  • New interfaces:

    • vkd3d_set_log_callback() allows writing log output via a custom callback. This can be used to integrate vkd3d's log output with other logging systems.

libvkd3d-shader

  • New features for the HLSL source type:

    • Support for integer arithmetic, bitwise and shift operations.
    • Support for matrix and vector subscripting.
    • Support for the mul() intrinsic function.
    • Support for matrix copying, casting, and entry-wise operations.
    • Support for complex initialisers.
    • Support for the ‘nointerpolation’ modifier. This modifier is applied by default to integer variables.
    • Support for the SV_VertexID semantic.
    • Support for matrix-typed varyings.
    • Constant folding for a number of operators.
    • Copy propagation across branches and loops. This allows use of non-numeric variables anywhere in a program, as well as more optimised code for accessing numeric variables within branches and loops.

  • The disassembler supports the shader model 5 ‘msad’ instruction.

  • New interfaces:

    • vkd3d_shader_set_log_callback() allows writing log output via a custom callback.

libvkd3d-utils

  • New interfaces:
    • vkd3d_utils_set_log_callback() allows writing log output via a custom callback.

build

  • The minimum required version of Vulkan-Headers and SPIRV-Headers for this release is version 1.2.139.

  • The SONAME_LIBVULKAN configure variable can be used to specify the shared object name of the Vulkan library. Because vkd3d loads the Vulkan library dynamically, specifying this removes the need for a Vulkan import library at build time.

  • The ‘crosstests’ target no longer builds Win32/PE demos or tests when these were not enabled at configure time.

What's new in vkd3d 1.3 (2 Mar 2022)

libvkd3d

  • Newly implemented Direct3D 12 features:

    • Root signature support for unbounded descriptor tables.
    • Unordered-access view counters in pixel shaders. These were previously only supported in compute shaders.
    • Output merger logical operations.
    • Retrieving CPU/GPU timestamp calibration values. This requires support for the VK_EXT_calibrated_timestamps extension.
    • The ‘mirror_once’ texture addressing mode. This requires support for the VK_KHR_sampler_mirror_clamp_to_edge extension.

  • New interfaces:

    • The vkd3d_host_time_domain_info structure extends the vkd3d_instance_create_info structure, and can be used to specify how to convert between timestamps and tick counts. If left unspecified, a tick is assumed to take 100 nanoseconds.

  • Various bug fixes.

libvkd3d-shader

  • New features:

    • Initial support for HLSL compilation and preprocessing. This is an ongoing effort; although support for many features is already implemented, support for many more isn't yet.
    • Support for disassembling Direct3D byte-code shaders to Direct3D assembly.
    • Support for parsing the legacy Direct3D byte-code format used by Direct3D shader model 1, 2, and 3 shaders. In the current vkd3d-shader release, only Direct3D assembly is supported as a target for these; we intend to support SPIR-V as a target in a future release.

  • New features for the SPIR-V target:

    • Support for various aspects of Direct3D shader model 5.1 descriptor arrays, including unbounded descriptor arrays, UAV counter arrays, dynamic indexing of descriptor arrays, and non-uniform indexing of descriptor arrays. With the exception of some special cases, this requires support for the SPV_EXT_descriptor_indexing extension in the target environment.
    • Support for double precision floating-point operations.
    • Support for indirect addressing of tessellation control shader inputs.
    • Stencil export. I.e., writing stencil values from shaders. This requires support for the SPV_EXT_shader_stencil_export extension in the target environment.
    • Support for the Direct3D shader model 4+ ‘precise’ modifier.
    • Support for Direct3D shader model 4+ global resource memory barriers.

New interfaces:

  • vkd3d_shader_preprocess() provides support for preprocessing shaders.

  • The vkd3d_shader_preprocess_info structure extends the vkd3d_shader_compile_info structure, and can be used to specify preprocessing parameters like preprocessor macro definitions.

  • The vkd3d_shader_hlsl_source_info structure extends the vkd3d_shader_compile_info structure, and can be used to specify HLSL compilation parameters like the target profile and entry point.

  • The vkd3d_shader_descriptor_offset_info structure extends the vkd3d_shader_interface_info structure, and can be used to specify offsets into descriptor arrays referenced by shader interface bindings. This allows mapping multiple descriptor arrays in a shader to a single binding point in the target environment, and helps with mapping between the Direct3D 12 and Vulkan binding models.

  • The VKD3D_SHADER_COMPILE_OPTION_API_VERSION compile option can be used to specify the version of the libvkd3d-shader API the application is targetting. If left unspecified, VKD3D_SHADER_API_VERSION_1_2 will be used.

  • Various shader translation fixes, for tessellation shaders in particular.

vkd3d-compiler

  • New source and target types:

    • The ‘hlsl’ source type specifies High Level Shader Language source code.
    • The ‘d3d-asm’ target type specifies Direct3D assembly shaders.
    • The ‘d3dbc’ format specifies legacy Direct3D byte-code, which is used for Direct3D shader model 1, 2, and 3 shaders.
    • The existing ‘dxbc-tpf’ format can now also be used as a target format.

  • New command line options:

    • ‘-E’ can be used to specify the input should only be preprocessed.
    • ‘-e’/‘--entry’ can be used to specify the entry point for HLSL and/or SPIR-V shaders.
    • ‘-p’/‘--profile’ can be used to specify the target profile for HLSL shaders.

  • When no source type is explicitly specified, vkd3d-compiler will attempt to determine the source type from the provided input. Note that this is intended as a convenience for interactive usage only, and the heuristics used are subject to future change. Non-interactive usage of vkd3d-compiler, for example in build scripts, should always explicitly specify source and target types.

  • When no target type is explicitly specified, a default will be chosen based on the source type. Like the earlier mentioned source type detection, this is intended for interactive usage only.

  • vkd3d-compiler will default to colour output if it can determine that the output is a colour-capable teleprinter.

  • New environment variables:

    • NO_COLOUR/NO_COLOR can be used to disable default colour output. See the README for more detailed descriptions and how to use these.

libvkd3d-utils

  • New interfaces:
    • D3DCreateBlob() provides support for creating ID3DBlob objects.
    • D3DPreprocess() provides support for preprocessing HLSL source code.
    • D3DCompile() and D3DCompile2() provide support for compiling HLSL source code.

build

  • The ‘gears’ and ‘triangle’ demo applications are installed as ‘vkd3d-gears’ and ‘vkd3d-triangle’. These were originally intended more as documentation than as end-user executables, but there's some value in using them for diagnostic purposes, much like e.g. ‘glxgears’.

  • The VULKAN_LIBS configure variable is used when detecting the Vulkan library.

  • Builds for the Microsoft Windows target platform no longer require support for POSIX threads. Windows synchronisation primitives are used instead.

  • If ncurses is available, it will be use by vkd3d-compiler to determine the capabilities of the connected teleprinter, if any.

What's new in vkd3d 1.2 (22 Sep 2020)

libvkd3d

  • Newly implemented Direct3D 12 features:

    • Multi-sampling.
    • Reserved resources.
    • Instance data step rates. This requires the VK_EXT_vertex_attribute_divisor extension.
    • ‘Private data’ APIs for all interfaces.
    • Shader-resource view component mappings.
    • Indirect indexed draws.
    • Indirect draws with a count buffer. This requires the VK_KHR_draw_indirect_count extension.
    • Stream output and stream output queries. This requires the VK_EXT_transform_feedback extension.
    • Predicated/conditional rendering.
    • Primitive restart.
    • Depth rendering without a pixel shader.
    • Depth clipping. This requires the VK_EXT_depth_clip_enable extension.
    • Rasteriser discard.
    • Dual-source blending.
    • Mapping placed resources.
    • The ReadFromSubresource() and WriteToSubresource() ID3D12Resource methods.
    • Simultaneous access to resources from multiple queues.
    • Null-views. I.e., views without an underlying resource.
    • Several more feature support queries.

  • New interfaces:

    • vkd3d_serialize_versioned_root_signature() and vkd3d_create_versioned_root_signature_deserializer() provide support for versioned root signatures.
    • The vkd3d_application_info structure extends the vkd3d_instance_create_info structure, and can be used to pass information about the application to libvkd3d. It is analogous to the VkApplicationInfo structure in Vulkan. Its ‘api_version’ field should be set to the version of the libvkd3d API that the application targets.
    • The vkd3d_optional_device_extensions_info structure extends the vkd3d_device_create_info structure, and can be used to pass a list of device extensions to enable only when available to libvkd3d. It is analogous to the vkd3d_optional_instance_extensions_info structure for instance extensions.

  • New environment variables:

    • VKD3D_CONFIG can be used to set options that change the behaviour of libvkd3d.
    • VKD3D_TEST_BUG can be used to disable bug_if() conditions in the test suite.
    • VKD3D_TEST_FILTER can be used to control which tests are run.
    • VKD3D_VULKAN_DEVICE can be used to override the Vulkan physical device used by vkd3d. See the README for more detailed descriptions and how to use these.

  • When the VK_KHR_dedicated_allocation extension is available, dedicated allocations may be used for committed resources.

  • When the VK_KHR_image_format_list extension is available, it will be used to inform the driver about the view formats that a particular mutable Vulkan image can be used with. This improves performance on some Vulkan implementations.

  • When the VK_EXT_debug_marker extension is available, object names set with the ID3D12Object SetName() method will be propagated to the underlying Vulkan objects.

  • Unordered-access view clears are supported on more formats. Previously these were limited to integer formats for texture resources, and single component integer formats for buffer resources.

  • When the D24_UNORM_S8_UINT format is not supported by the Vulkan implementation, the D32_SFLOAT_S8_UINT format will be used instead to implement the D24_UNORM_S8_UINT and related DXGI formats. This is required because the DXGI D24_UNORM_S8_UINT format is mandatory, while the Vulkan D24_UNORM_S8_UINT format is optional.

  • Various bug fixes.

libvkd3d-shader

  • libvkd3d-shader is now available as a public instead of an internal library.

  • New features:

    • Tessellation shaders.
    • Root signature version 1.1 serialisation, deserialisation, and conversion.
    • Multi-sample masks.
    • Per-sample shading.
    • Early depth/stencil test.
    • Conservative depth output.
    • Dual-source blending.
    • Stream output.
    • Viewport arrays.

  • Support for OpenGL SPIR-V target environments. This allows SPIR-V produced by libvkd3d-shader to be used with GL_ARB_gl_spirv. This includes support for OpenGL atomic counters and combined samplers.

  • Preliminary support for shader model 5.1 shaders. This is still a work in progress. Notably, support for resource arrays is not yet implemented.

  • When the SPV_EXT_demote_to_helper_invocation is available, it will be used to implement the ‘discard’ shader instruction instead of using SpvOpKill. In particular, this ensures the ‘deriv_rtx’ and ‘deriv_rty’ instruction return accurate results after a (conditional) ‘discard’ instruction.

  • Support for using SPIR-V specialisation constants for shader parameters.

  • Support for more shader instructions:

    • bufinfo,
    • eval_centroid,
    • eval_sample_index,
    • ld2ms,
    • sample_b,
    • sample_d,
    • sample_info,
    • samplepos.

  • When built against SPIRV-Tools, libvkd3d-shader can produce SPIR-V shaders in text form.

  • libvkd3d-shader now has its own environment variable (VKD3D_SHADER_DEBUG) to control debug output.

  • Various shader translation fixes.

vkd3d-compiler

  • When supported by libvkd3d-shader, text form SPIR-V is available as a target format, in addition to the existing binary form SPIR-V target format.

  • Input from standard input, and output to standard output is supported.

libvkd3d-utils

  • To specify the libvkd3d API version to use when creating vkd3d instances, define VKD3D_UTILS_API_VERSION to the desired version before including vkd3d_utils.h. If VKD3D_UTILS_API_VERSION is not explicitly defined, VKD3D_API_VERSION_1_0 will be used.

  • Support for versioned root signatures is provided by the D3D12SerializeVersionedRootSignature() and D3D12CreateVersionedRootSignatureDeserializer() entry points.

build

  • The minimum required version of Vulkan-Headers and SPIRV-Headers for this release is version 1.1.113.

  • The minimum required version of widl for this release is version 3.20.

  • If doxygen is available, it will be used to build API documentation. By default, documentation will be generated in HTML and PDF formats.

  • If debug logs are not required or desired, defining VKD3D_NO_TRACE_MESSAGES and VKD3D_NO_DEBUG_MESSAGES will prevent them from being included in the build. For example, a release build may want to configure with ‘CPPFLAGS="-DNDEBUG -DVKD3D_NO_TRACE_MESSAGES -DVKD3D_NO_DEBUG_MESSAGES"’.

  • Microsoft Windows is now a supported target platform. To create a build for Windows, either cross-compile by configuring with an appropriate --host option like for example ‘--host=x86_64-w64-mingw32’, or build on Windows itself using an environment like MSYS2 or Cygwin.

What's new in vkd3d 1.1 (5 Oct 2018)

libvkd3d

  • Initial support for memory heaps and placed resources.

  • Improved support for resource views.

  • ClearUnorderedAccessViewUint() is implemented for textures.

  • Blend factor is implemented.

  • Performance improvements.

  • A new interface is available for enabling additional Vulkan instance extensions.

  • A new public function is available for mapping VkFormats to DXGI_FORMATs.

  • Support for more DXGI formats.

  • Various bug fixes.

libvkd3d-shader

  • Support for geometry shaders.

  • Pretty printing is implemented for shader code extracted from DXBC.

  • Clip and cull distances are supported.

  • Support for more shader instructions:

    • round_ne,
    • sincos,
    • ineg,
    • continue,
    • continuec,
    • gather4_po,
    • gather4_po_c,
    • gather4_c.

  • Texel offsets are supported.

  • Various shader translation fixes.

libvkd3d-utils

  • Vulkan WSI extensions are detected at runtime.

build

  • Demos are not built by default.

  • libxcb is now an optional dependency required only for demos.

  • MoltenVK is supported.

What's included in vkd3d 1.0 (23 May 2018)

libvkd3d

  • libvkd3d is the main component of the vkd3d project. It's a 3D graphics library built on top of Vulkan with an API very similar to Direct3D 12.

  • A significant number of Direct3D 12 features are implemented, including:

    • Graphics and compute pipelines.
    • Command lists, command allocators and command queues.
    • Descriptors and descriptor heaps.
    • Root signatures.
    • Constant buffer, shader resource, unordered access, render target and depth stencil views.
    • Samplers.
    • Static samplers.
    • Descriptors copying.
    • Committed resources.
    • Fences.
    • Queries and query heaps.
    • Resource barriers.
    • Root constants.
    • Basic support for indirect draws and dispatches.
    • Basic support for command signatures.
    • Various Clear*() methods.
    • Various Copy*() methods.

libvkd3d-shader

  • libvkd3d-shader is a library which translates shader model 4 and 5 bytecode to SPIR-V. In this release, libvkd3d-shader is an internal library. Its API isn't set in stone yet.

  • Vertex, pixel and compute shaders are supported. Also, very simple geometry shaders should be translated correctly. Issues are expected when trying to translate tessellation shaders or more complex geometry shaders.

  • A significant number of shader instructions are supported in this release, including:

    • Arithmetic instructions.
    • Bit instructions.
    • Comparison instructions.
    • Control flow instructions.
    • Sample, gather and load instructions.
    • Atomic instructions.
    • UAV instructions.

  • Root signature serialization and deserialization is implemented.

  • Shader model 4 and 5 bytecode parser is imported from wined3d.

  • Shader model 5.1 is not supported yet.

libvkd3d-utils

  • libvkd3d-utils contains simple implementations of various functions which might be useful for source ports of Direct3D 12 applications.

demos

  • A simple hello triangle Direct3D 12 demo.
  • A Direct3D 12 port of glxgears.