Vulkan-Utility-Libraries/scripts/generators/format_utils_generator.py
unknown c903525915 src: Add vk_format_utils.h to UtilityHeaders
The library originates from Vulkan-ValidationLayers, but is being moved
into this repo to make it easier for others to use it.

The library has also been modified to be header only and C compatible,
which allows more developers to be able to use it. This does require some
changes, but only affects the vkuFormatElementSize and vkuFormatTexelSize
functions which used default parameters. Two new functions,
vkuFormatElementSizeWithAspect and vkuFormatTexelSizeWithAspect have been
added to handle the non-default image aspect case (the default was COLOR_BIT).

Renaming was done using the following convention:
* public header files begin with `vk_`
* enums begin with VKU_FORMAT_
* functions begin with vku
2023-09-11 12:48:03 -06:00

662 lines
30 KiB
Python

#!/usr/bin/python3 -i
#
# Copyright 2023 The Khronos Group Inc.
# Copyright 2023 Valve Corporation
# Copyright 2023 LunarG, Inc.
#
# SPDX-License-Identifier: Apache-2.0
import os
from generators.vulkan_object import (Format)
from generators.base_generator import BaseGenerator
# Make C name friendly class name
def getClassName(className: str) -> str:
return className.replace('-', '').replace(' ', '_').upper()
def formatHasDepth(format: Format) -> bool:
return any(x.type == 'D' for x in format.components)
def formatHasStencil(format: Format) -> bool:
return any(x.type == 'S' for x in format.components)
def formatHasEqualBitsize(format: Format, bitsize: str) -> bool:
return all(x.bits == bitsize for x in format.components)
# True if all components are same numericFormat
def formatHasNumericFormat(format: Format, numericFormat: str) -> bool:
return all(x.numericFormat == numericFormat for x in format.components)
class FormatUtilsOutputGenerator(BaseGenerator):
def __init__(self):
BaseGenerator.__init__(self)
self.maxPlaneCount = 1
self.maxComponentCount = 1
self.compressedFormats = dict()
self.depthFormats = dict()
self.stencilFormats = dict()
self.numericFormats = set()
# Lots of switch statements share same ending
self.commonBoolSwitch = ''' return true;
default:
return false;
}
}
'''
#
# Called at beginning of processing as file is opened
def generate(self):
self.maxPlaneCount = max([len(format.planes) for format in self.vk.formats.values()])
self.maxComponentCount = max([len(format.components) for format in self.vk.formats.values()])
for format in [x for x in self.vk.formats.values() if x.compressed]:
compressed = format.compressed.replace(' ', '_')
if compressed not in self.compressedFormats:
# create list if first time
self.compressedFormats[compressed] = []
self.compressedFormats[compressed].append(format.name)
for format in self.vk.formats.values():
for component in format.components:
if component.type == 'D':
self.depthFormats[format.name] = component
elif component.type == 'S':
self.stencilFormats[format.name] = component
self.numericFormats.add(component.numericFormat)
out = []
out.append(f'''// *** THIS FILE IS GENERATED - DO NOT EDIT ***
// See {os.path.basename(__file__)} for modifications
// Copyright 2023 The Khronos Group Inc.
// Copyright 2023 Valve Corporation
// Copyright 2023 LunarG, Inc.
//
// SPDX-License-Identifier: Apache-2.0
''')
out.append('''
#pragma once
#ifdef __cplusplus
extern "C" {
#endif
#include <vulkan/vulkan.h>
#include <stdbool.h>
''')
out.append('#define VKU_FORMAT_INVALID_INDEX 0xFFFFFFFF\n')
out.append(f'#define VKU_FORMAT_MAX_PLANES {self.maxPlaneCount}\n')
out.append(f'#define VKU_FORMAT_MAX_COMPONENTS {self.maxComponentCount}\n')
out.append('\n')
out.append('enum VKU_FORMAT_NUMERICAL_TYPE {\n')
out.append(' VKU_FORMAT_NUMERICAL_TYPE_NONE = 0,\n')
for index, numericFormat in enumerate(sorted(self.numericFormats), start=1):
out.append(f' VKU_FORMAT_NUMERICAL_TYPE_{numericFormat}')
out.append(',\n')
out.append('};\n')
out.append('\n')
out.append('enum VKU_FORMAT_COMPATIBILITY_CLASS {\n')
out.append(' VKU_FORMAT_COMPATIBILITY_CLASS_NONE = 0,\n')
classNames = set()
for f in self.vk.formats.values():
classNames.add(getClassName(f.className))
for className in sorted(classNames):
out.append(f' VKU_FORMAT_COMPATIBILITY_CLASS_{className}')
out.append(',\n')
out.append('};\n')
out.append('// Return the plane index of a given VkImageAspectFlagBits.\n')
out.append('// VK_IMAGE_ASPECT_PLANE_0_BIT -> 0\n')
out.append('// VK_IMAGE_ASPECT_PLANE_1_BIT -> 1\n')
out.append('// VK_IMAGE_ASPECT_PLANE_2_BIT -> 2\n')
out.append('// <any other value> -> VKU_FORMAT_INVALID_INDEX\n')
out.append('inline uint32_t vkuGetPlaneIndex(VkImageAspectFlagBits aspect);\n\n')
for numericFormat in sorted(self.numericFormats):
out.append(f'// Returns whether a VkFormat is of the numerical format {numericFormat}\n')
out.append('// Format must only contain one numerical format, so formats like D16_UNORM_S8_UINT always return false\n')
out.append(f'inline bool vkuFormatIs{numericFormat}(VkFormat format);\n\n')
out.append('''// Returns whether the type of a VkFormat is a OpTypeInt (SPIR-V) from "Interpretation of Numeric Format" table
inline bool vkuFormatIsSampledInt(VkFormat format);
// Returns whether the type of a VkFormat is a OpTypeFloat (SPIR-V) from "Interpretation of Numeric Format" table
inline bool vkuFormatIsSampledFloat(VkFormat format);
''')
for key in sorted(self.compressedFormats.keys()):
out.append(f'// Returns whether a VkFormat is a compressed format of type {key}\n')
out.append(f'inline bool vkuFormatIsCompressed_{key}(VkFormat format);\n\n')
out.append('// Returns whether a VkFormat is of any compressed format type\n')
out.append('inline bool vkuFormatIsCompressed(VkFormat format);\n')
out.append('''
// Returns whether a VkFormat is either a depth or stencil format
inline bool vkuFormatIsDepthOrStencil(VkFormat format);
// Returns whether a VkFormat is a depth and stencil format
inline bool vkuFormatIsDepthAndStencil(VkFormat format);
// Returns whether a VkFormat is a depth only format
inline bool vkuFormatIsDepthOnly(VkFormat format);
// Returns whether a VkFormat is a stencil only format
inline bool vkuFormatIsStencilOnly(VkFormat format);
// Returns whether a VkFormat has a depth component
inline bool vkuFormatHasDepth(VkFormat format) { return (vkuFormatIsDepthOnly(format) || vkuFormatIsDepthAndStencil(format)); }
// Returns whether a VkFormat has a stencil component
inline bool vkuFormatHasStencil(VkFormat format) { return (vkuFormatIsStencilOnly(format) || vkuFormatIsDepthAndStencil(format)); }
// Returns the size of the depth component in bits if it has one. Otherwise it returns 0
inline uint32_t vkuFormatDepthSize(VkFormat format);
// Returns the size of the stencil component in bits if it has one. Otherwise it returns 0
inline uint32_t vkuFormatStencilSize(VkFormat format);
// Returns the numerical type of the depth component if it has one. Otherwise it returns VKU_FORMAT_NUMERICAL_TYPE_NONE
inline enum VKU_FORMAT_NUMERICAL_TYPE vkuFormatDepthNumericalType(VkFormat format);
// Returns the numerical type of the stencil component if it has one. Otherwise it returns VKU_FORMAT_NUMERICAL_TYPE_NONE
inline enum VKU_FORMAT_NUMERICAL_TYPE vkuFormatStencilNumericalType(VkFormat format);
// Returns whether a VkFormat is packed
inline bool vkuFormatIsPacked(VkFormat format);
// Returns whether a VkFormat is YCbCr
// This corresponds to formats with _444, _422, or _420 in their name
inline bool vkuFormatRequiresYcbcrConversion(VkFormat format);
// Returns whether a VkFormat is XChromaSubsampled
// This corresponds to formats with _422 in their name
inline bool vkuFormatIsXChromaSubsampled(VkFormat format);
// Returns whether a VkFormat is YChromaSubsampled
// This corresponds to formats with _420 in their name
inline bool vkuFormatIsYChromaSubsampled(VkFormat format);
// Returns whether a VkFormat is Multiplane
// Single-plane "_422" formats are treated as 2x1 compressed (for copies)
inline bool vkuFormatIsSinglePlane_422(VkFormat format);
// Returns number of planes in format (which is 1 by default)
inline uint32_t vkuFormatPlaneCount(VkFormat format);
// Returns whether a VkFormat is multiplane
inline bool vkuFormatIsMultiplane(VkFormat format) { return ((vkuFormatPlaneCount(format)) > 1u); }
// Returns a VkFormat that is compatible with a given plane of a multiplane format
// Will return VK_FORMAT_UNDEFINED if given a plane aspect that doesn't exist for the format
inline VkFormat vkuFindMultiplaneCompatibleFormat(VkFormat mp_fmt, VkImageAspectFlagBits plane_aspect);
// Returns the extent divisors of a multiplane format given a plane
// Will return {1, 1} if given a plane aspect that doesn't exist for the VkFormat
inline VkExtent2D vkuFindMultiplaneExtentDivisors(VkFormat mp_fmt, VkImageAspectFlagBits plane_aspect);
// Returns the count of components in a VkFormat
inline uint32_t vkuFormatComponentCount(VkFormat format);
// Returns the texel block extent of a VkFormat
inline VkExtent3D vkuFormatTexelBlockExtent(VkFormat format);
// Returns the Compatibility Class of a VkFormat as defined by the spec
inline enum VKU_FORMAT_COMPATIBILITY_CLASS vkuFormatCompatibilityClass(VkFormat format);
// Return true if a VkFormat is 'normal', with one texel per format element
inline bool vkuFormatElementIsTexel(VkFormat format);
// Return size, in bytes, of one element of a VkFormat
// Format must not be a depth, stencil, or multiplane format
inline uint32_t vkuFormatElementSize(VkFormat format);
// Return the size in bytes of one texel of a VkFormat
// For compressed or multi-plane, this may be a fractional number
inline uint32_t vkuFormatElementSizeWithAspect(VkFormat format, VkImageAspectFlagBits aspectMask);
// Return the size in bytes of one texel of a VkFormat
// Format must not be a depth, stencil, or multiplane format
inline double vkuFormatTexelSize(VkFormat format);
// Return the size in bytes of one texel of a VkFormat
// For compressed or multi-plane, this may be a fractional number
inline double vkuFormatTexelSizeWithAspect(VkFormat format, VkImageAspectFlagBits aspectMask);
''')
for bits in ['8', '16', '32', '64']:
out.append(f'// Returns whether a VkFormat contains only {bits}-bit sized components\n')
out.append(f'inline bool vkuFormatIs{bits}bit(VkFormat format);\n\n')
out.append('''// Returns whether a VkFormat has a component of a given size
inline bool vkuFormatHasComponentSize(VkFormat format, uint32_t size);
// Returns whether a VkFormat has a Red color component
inline bool vkuFormatHasRed(VkFormat format);
// Returns whether a VkFormat has a Green color component
inline bool vkuFormatHasGreen(VkFormat format);
// Returns whether a VkFormat has a Blue color component
inline bool vkuFormatHasBlue(VkFormat format);
// Returns whether a VkFormat has a Alpha color component
inline bool vkuFormatHasAlpha(VkFormat format);
// Returns whether a VkFormat is equal to VK_FORMAT_UNDEFINED
inline bool vkuFormatIsUndefined(VkFormat format) { return (format == VK_FORMAT_UNDEFINED); }
// Returns whether a VkFormat is a "blocked image" as defined in the spec (vkspec.html#blocked-image)
inline bool vkuFormatIsBlockedImage(VkFormat format) {
return (vkuFormatIsCompressed(format) || vkuFormatIsSinglePlane_422(format));
}
// Returns whether a VkFormat is a "color format'. Because there is no official specification definition of
// "color format", it is defined here as anything that isn't a depth/stencil format, multiplane format, or the undefined format.
inline bool vkuFormatIsColor(VkFormat format) {
return !(vkuFormatIsUndefined(format) || vkuFormatIsDepthOrStencil(format) || vkuFormatIsMultiplane(format));
}
enum VKU_FORMAT_COMPONENT_TYPE {
VKU_FORMAT_COMPONENT_TYPE_NONE,
VKU_FORMAT_COMPONENT_TYPE_R,
VKU_FORMAT_COMPONENT_TYPE_G,
VKU_FORMAT_COMPONENT_TYPE_B,
VKU_FORMAT_COMPONENT_TYPE_A,
VKU_FORMAT_COMPONENT_TYPE_D,
VKU_FORMAT_COMPONENT_TYPE_S,
};
// Compressed formats don't have a defined component size
const uint32_t VKU_FORMAT_COMPRESSED_COMPONENT = 0xFFFFFFFF;
struct VKU_FORMAT_COMPONENT_INFO {
enum VKU_FORMAT_COMPONENT_TYPE type;
uint32_t size; // bits
};
// Generic information for all formats
struct VKU_FORMAT_INFO {
enum VKU_FORMAT_COMPATIBILITY_CLASS compatibility;
uint32_t block_size; // bytes
uint32_t texel_per_block;
VkExtent3D block_extent;
uint32_t component_count;
struct VKU_FORMAT_COMPONENT_INFO components[VKU_FORMAT_MAX_COMPONENTS];
};
''')
out.append('// clang-format off\n')
out.append('inline const struct VKU_FORMAT_INFO vkuGetFormatInfo(VkFormat format) {\n')
out.append(' switch (format) {\n')
for f in self.vk.formats.values():
className = getClassName(f.className)
blockExtent = ', '.join(f.blockExtent) if f.blockExtent is not None else '1, 1, 1'
out.extend(f' case {f.name}: {{\n')
out.extend(f' struct VKU_FORMAT_INFO out = {{VKU_FORMAT_COMPATIBILITY_CLASS_{className}, {f.blockSize}, {f.texelsPerBlock}, {{{blockExtent}}}, {len(f.components)}, {{')
for index, component in enumerate(f.components):
bits = 'VKU_FORMAT_COMPRESSED_COMPONENT' if component.bits == 'compressed' else component.bits
out.append(f'{{VKU_FORMAT_COMPONENT_TYPE_{component.type}, {bits}}}')
if index + 1 != len(f.components):
out.append(', ')
out.append('}};\n')
out.append(' return out; }\n')
out.append('''
default: {
// return values for VK_FORMAT_UNDEFINED
struct VKU_FORMAT_INFO out = { VKU_FORMAT_COMPATIBILITY_CLASS_NONE, 0, 0, {0, 0, 0}, 0, {{VKU_FORMAT_COMPONENT_TYPE_NONE, 0}, {VKU_FORMAT_COMPONENT_TYPE_NONE, 0}, {VKU_FORMAT_COMPONENT_TYPE_NONE, 0}, {VKU_FORMAT_COMPONENT_TYPE_NONE, 0}} };
return out;
}
};
}
// clang-format on
struct VKU_FORMAT_PER_PLANE_COMPATIBILITY {
uint32_t width_divisor;
uint32_t height_divisor;
VkFormat compatible_format;
};
// Information for multiplanar formats
struct VKU_FORMAT_MULTIPLANE_COMPATIBILITY {
struct VKU_FORMAT_PER_PLANE_COMPATIBILITY per_plane[VKU_FORMAT_MAX_PLANES];
};
''')
out.append('// Source: Vulkan spec Table 47. Plane Format Compatibility Table\n')
out.append('// clang-format off\n')
out.append('inline const struct VKU_FORMAT_MULTIPLANE_COMPATIBILITY vkuGetFormatCompatibility(VkFormat format) {\n')
out.append(' switch (format) {\n')
for format in [x for x in self.vk.formats.values() if x.planes]:
out.extend(f' case {format.name}: {{\n')
out.append(' struct VKU_FORMAT_MULTIPLANE_COMPATIBILITY out = {{')
for index, plane in enumerate(format.planes):
if (index != plane.index):
self.logMsg('error', 'index of planes were not added in order')
out.append(f'{{{plane.widthDivisor}, {plane.heightDivisor}, {plane.compatible} }}')
if index + 1 != self.maxPlaneCount:
out.append(', ')
# pad any 'empty' elements
if len(format.planes) < self.maxPlaneCount:
for index in range(len(format.planes), self.maxPlaneCount):
out.append('{1, 1, VK_FORMAT_UNDEFINED }')
if index + 1 != self.maxPlaneCount:
out.append(', ')
out.append('}};\n')
out.append(' return out; }\n')
out.append(' default: {\n')
out.append(' struct VKU_FORMAT_MULTIPLANE_COMPATIBILITY out = {{{1, 1, VK_FORMAT_UNDEFINED}, {1, 1, VK_FORMAT_UNDEFINED}, {1, 1, VK_FORMAT_UNDEFINED}}};\n')
out.append(' return out; }\n')
out.append(' };\n')
out.append('}\n')
out.append('// clang-format on\n')
for numericFormat in sorted(self.numericFormats):
out.append(f'\n// Return true if all components in a format are an {numericFormat}\n')
out.append(f'bool vkuFormatIs{numericFormat}(VkFormat format) {{\n')
out.append(' switch (format) {\n')
out.extend([f' case {f.name}:\n' for f in self.vk.formats.values() if formatHasNumericFormat(f, numericFormat)])
out.append(self.commonBoolSwitch)
out.append('''
inline bool vkuFormatIsSampledInt(VkFormat format) { return (vkuFormatIsSINT(format) || vkuFormatIsUINT(format)); }
inline bool vkuFormatIsSampledFloat(VkFormat format) {
return (vkuFormatIsUNORM(format) || vkuFormatIsSNORM(format) ||
vkuFormatIsUSCALED(format) || vkuFormatIsSSCALED(format) ||
vkuFormatIsUFLOAT(format) || vkuFormatIsSFLOAT(format) ||
vkuFormatIsSRGB(format));
}
''')
for key in sorted(self.compressedFormats.keys()):
out.append(f'\n// Return true if a format is a {key} compressed image format\n')
out.append(f'bool vkuFormatIsCompressed_{key}(VkFormat format) {{\n')
out.append(' switch (format) {\n')
for f in sorted(self.compressedFormats[key]):
out.append(f' case {f}:\n')
out.append(self.commonBoolSwitch)
out.append('\n// clang-format off\n')
out.append('// Return true if a format is any compressed image format\n')
out.append('bool vkuFormatIsCompressed(VkFormat format) {\n')
out.append(' return\n')
for index, key in enumerate(sorted(self.compressedFormats.keys())):
out.append(f' vkuFormatIsCompressed_{key}(format)')
if (index !=len(self.compressedFormats.keys()) - 1):
out.append(' ||\n')
out.append(';\n')
out.append('}\n')
out.append('// clang-format on\n')
out.append('\n// Return true if format is a depth OR stencil format\n')
out.append('bool vkuFormatIsDepthOrStencil(VkFormat format) {\n')
out.append(' switch (format) {\n')
out.extend([f' case {f.name}:\n' for f in self.vk.formats.values() if formatHasDepth(f) or formatHasStencil(f)])
out.append(self.commonBoolSwitch)
out.append('\n// Return true if format is a depth AND stencil format\n')
out.append('bool vkuFormatIsDepthAndStencil(VkFormat format) {\n')
out.append(' switch (format) {\n')
out.extend([f' case {f.name}:\n' for f in self.vk.formats.values() if formatHasDepth(f) and formatHasStencil(f)])
out.append(self.commonBoolSwitch)
out.append('\n// Return true if format is a depth ONLY format\n')
out.append('bool vkuFormatIsDepthOnly(VkFormat format) {\n')
out.append(' switch (format) {\n')
out.extend([f' case {f.name}:\n' for f in self.vk.formats.values() if formatHasDepth(f) and not formatHasStencil(f)])
out.append(self.commonBoolSwitch)
out.append('\n// Return true if format is a stencil ONLY format\n')
out.append('bool vkuFormatIsStencilOnly(VkFormat format) {\n')
out.append(' switch (format) {\n')
out.extend([f' case {f.name}:\n' for f in self.vk.formats.values() if formatHasStencil(f) and not formatHasDepth(f)])
out.append(self.commonBoolSwitch)
out.append('\n// Returns size of depth component in bits')
out.append('\n// Returns zero if no depth component\n')
out.append('uint32_t vkuFormatDepthSize(VkFormat format) {\n')
out.append(' switch (format) {\n')
# sorts case statments together with same return value
used = []
for key, value in sorted(self.depthFormats.items()):
if key not in used:
for key_dup, value_dup in sorted(self.depthFormats.items()):
if value_dup.bits == value.bits:
used.append(key_dup)
out.append(f' case {key_dup}:\n')
out.append(f' return {value.bits};\n')
out.append(' default:\n')
out.append(' return 0;\n')
out.append(' }\n')
out.append('}\n')
out.append('\n// Returns size of stencil component in bits')
out.append('\n// Returns zero if no stencil component\n')
out.append('uint32_t vkuFormatStencilSize(VkFormat format) {\n')
out.append(' switch (format) {\n')
# sorts case statments together with same return value
used = []
for key, value in sorted(self.stencilFormats.items()):
if key not in used:
for key_dup, value_dup in sorted(self.stencilFormats.items()):
if value_dup.bits == value.bits:
used.append(key_dup)
out.append(f' case {key_dup}:\n')
out.append(f' return {value.bits};\n')
out.append(' default:\n')
out.append(' return 0;\n')
out.append(' }\n')
out.append('}\n')
out.append('\n// Returns NONE if no depth component\n')
out.append('enum VKU_FORMAT_NUMERICAL_TYPE vkuFormatDepthNumericalType(VkFormat format) {\n')
out.append(' switch (format) {\n')
# sorts case statments together with same return value
used = []
for key, value in sorted(self.depthFormats.items()):
if key not in used:
for key_dup, value_dup in sorted(self.depthFormats.items()):
if value_dup.numericFormat == value.numericFormat:
used.append(key_dup)
out.append(f' case {key_dup}:\n')
out.append(f' return VKU_FORMAT_NUMERICAL_TYPE_{value.numericFormat};\n')
out.append(' default:\n')
out.append(' return VKU_FORMAT_NUMERICAL_TYPE_NONE;\n')
out.append(' }\n')
out.append('}\n')
out.append('\n// Returns NONE if no stencil component\n')
out.append('enum VKU_FORMAT_NUMERICAL_TYPE vkuFormatStencilNumericalType(VkFormat format) {\n')
out.append(' switch (format) {\n')
# sorts case statments together with same return value
used = []
for key, value in sorted(self.stencilFormats.items()):
if key not in used:
for key_dup, value_dup in sorted(self.stencilFormats.items()):
if value_dup.numericFormat == value.numericFormat:
used.append(key_dup)
out.append(f' case {key_dup}:\n')
out.append(f' return VKU_FORMAT_NUMERICAL_TYPE_{value.numericFormat};\n')
out.append(' default:\n')
out.append(' return VKU_FORMAT_NUMERICAL_TYPE_NONE;\n')
out.append(' }\n')
out.append('}\n')
out.append('\n// Return true if format is a packed format\n')
out.append('bool vkuFormatIsPacked(VkFormat format) {\n')
out.append(' switch (format) {\n')
for name in [x.name for x in self.vk.formats.values() if x.packed]:
out.append(f' case {name}:\n')
out.append(self.commonBoolSwitch)
out.append('\n// Return true if format requires sampler YCBCR conversion\n')
out.append('// for VK_IMAGE_ASPECT_COLOR_BIT image views\n')
out.append('// Table found in spec\n')
out.append('bool vkuFormatRequiresYcbcrConversion(VkFormat format) {\n')
out.append(' switch (format) {\n')
for name in [x.name for x in self.vk.formats.values() if x.chroma]:
out.append(f' case {name}:\n')
out.append(self.commonBoolSwitch)
out.append('\nbool vkuFormatIsXChromaSubsampled(VkFormat format) {\n')
out.append(' switch (format) {\n')
for name in [x.name for x in self.vk.formats.values() if x.chroma == '420' or x.chroma == '422']:
out.append(f' case {name}:\n')
out.append(self.commonBoolSwitch)
out.append('\nbool vkuFormatIsYChromaSubsampled(VkFormat format) {\n')
out.append(' switch (format) {\n')
for name in [x.name for x in self.vk.formats.values() if x.chroma == '420']:
out.append(f' case {name}:\n')
out.append(self.commonBoolSwitch)
out.append('\nbool vkuFormatIsSinglePlane_422(VkFormat format) {\n')
out.append(' switch (format) {\n')
for name in [x.name for x in self.vk.formats.values() if x.chroma == '422' and not x.planes]:
out.append(f' case {name}:\n')
out.append(self.commonBoolSwitch)
out.append('\n// Returns number of planes in format (which is 1 by default)\n')
out.append('uint32_t vkuFormatPlaneCount(VkFormat format) {\n')
out.append(' switch (format) {\n')
# Use range to sort formats together
for i in range(2, self.maxPlaneCount + 1):
out.extend([f' case {f.name}:\n' for f in self.vk.formats.values() if len(f.planes) == i])
out.append(f' return {i};\n')
out.append(' default:\n')
out.append(' return 1;\n')
out.append(' }\n')
out.append('}\n')
out.append('''
// Will return VK_FORMAT_UNDEFINED if given a plane aspect that doesn't exist for the format
inline VkFormat vkuFindMultiplaneCompatibleFormat(VkFormat mp_fmt, VkImageAspectFlagBits plane_aspect) {
const uint32_t plane_idx = vkuGetPlaneIndex(plane_aspect);
const struct VKU_FORMAT_MULTIPLANE_COMPATIBILITY multiplane_compatibility = vkuGetFormatCompatibility(mp_fmt);
if ((multiplane_compatibility.per_plane[0].compatible_format == VK_FORMAT_UNDEFINED) || (plane_idx >= VKU_FORMAT_MAX_PLANES)) {
return VK_FORMAT_UNDEFINED;
}
return multiplane_compatibility.per_plane[plane_idx].compatible_format;
}
inline VkExtent2D vkuFindMultiplaneExtentDivisors(VkFormat mp_fmt, VkImageAspectFlagBits plane_aspect) {
VkExtent2D divisors = {1, 1};
const uint32_t plane_idx = vkuGetPlaneIndex(plane_aspect);
const struct VKU_FORMAT_MULTIPLANE_COMPATIBILITY multiplane_compatibility = vkuGetFormatCompatibility(mp_fmt);
if ((multiplane_compatibility.per_plane[0].compatible_format == VK_FORMAT_UNDEFINED) || (plane_idx >= VKU_FORMAT_MAX_PLANES)) {
return divisors;
}
divisors.width = multiplane_compatibility.per_plane[plane_idx].width_divisor;
divisors.height = multiplane_compatibility.per_plane[plane_idx].height_divisor;
return divisors;
}
inline uint32_t vkuFormatComponentCount(VkFormat format) { return vkuGetFormatInfo(format).component_count; }
inline VkExtent3D vkuFormatTexelBlockExtent(VkFormat format) { return vkuGetFormatInfo(format).block_extent; }
inline enum VKU_FORMAT_COMPATIBILITY_CLASS vkuFormatCompatibilityClass(VkFormat format) { return vkuGetFormatInfo(format).compatibility; }
inline bool vkuFormatElementIsTexel(VkFormat format) {
if (vkuFormatIsPacked(format) || vkuFormatIsCompressed(format) || vkuFormatIsSinglePlane_422(format) || vkuFormatIsMultiplane(format)) {
return false;
} else {
return true;
}
}
inline uint32_t vkuFormatElementSize(VkFormat format) {
return vkuFormatElementSizeWithAspect(format, VK_IMAGE_ASPECT_COLOR_BIT);
}
inline uint32_t vkuFormatElementSizeWithAspect(VkFormat format, VkImageAspectFlagBits aspectMask) {
// Depth/Stencil aspect have separate helper functions
if (aspectMask & VK_IMAGE_ASPECT_STENCIL_BIT) {
return vkuFormatStencilSize(format) / 8;
} else if (aspectMask & VK_IMAGE_ASPECT_DEPTH_BIT) {
return vkuFormatDepthSize(format) / 8;
} else if (vkuFormatIsMultiplane(format)) {
// Element of entire multiplane format is not useful,
// Want to get just a single plane as the lookup format
format = vkuFindMultiplaneCompatibleFormat(format, aspectMask);
}
return vkuGetFormatInfo(format).block_size;
}
inline double vkuFormatTexelSize(VkFormat format) {
return vkuFormatTexelSizeWithAspect(format, VK_IMAGE_ASPECT_COLOR_BIT);
}
inline double vkuFormatTexelSizeWithAspect(VkFormat format, VkImageAspectFlagBits aspectMask) {
double texel_size = (double)(vkuFormatElementSizeWithAspect(format, aspectMask));
VkExtent3D block_extent = vkuFormatTexelBlockExtent(format);
uint32_t texels_per_block = block_extent.width * block_extent.height * block_extent.depth;
if (1 < texels_per_block) {
texel_size /= (double)(texels_per_block);
}
return texel_size;
}
''')
# Could loop the components, but faster to just list these
for bits in ['8', '16', '32', '64']:
out.append(f'inline bool vkuFormatIs{bits}bit(VkFormat format) {{\n')
out.append(' switch (format) {\n')
out.extend([f' case {f.name}:\n' for f in self.vk.formats.values() if formatHasEqualBitsize(f, bits)])
out.append(self.commonBoolSwitch)
out.append('''
inline bool vkuFormatHasComponentSize(VkFormat format, uint32_t size) {
const struct VKU_FORMAT_INFO format_info = vkuGetFormatInfo(format);
bool equal_component_size = false;
for (size_t i = 0; i < VKU_FORMAT_MAX_COMPONENTS; i++) {
equal_component_size |= format_info.components[i].size == size;
}
return equal_component_size;
}
inline bool vkuFormatHasComponentType(VkFormat format, enum VKU_FORMAT_COMPONENT_TYPE component) {
const struct VKU_FORMAT_INFO format_info = vkuGetFormatInfo(format);
bool equal_component_type = false;
for (size_t i = 0; i < VKU_FORMAT_MAX_COMPONENTS; i++) {
equal_component_type |= format_info.components[i].type == component;
}
return equal_component_type;
}
inline bool vkuFormatHasRed(VkFormat format) { return vkuFormatHasComponentType(format, VKU_FORMAT_COMPONENT_TYPE_R); }
inline bool vkuFormatHasGreen(VkFormat format) { return vkuFormatHasComponentType(format, VKU_FORMAT_COMPONENT_TYPE_G); }
inline bool vkuFormatHasBlue(VkFormat format) { return vkuFormatHasComponentType(format, VKU_FORMAT_COMPONENT_TYPE_B); }
inline bool vkuFormatHasAlpha(VkFormat format) { return vkuFormatHasComponentType(format, VKU_FORMAT_COMPONENT_TYPE_A); }
inline uint32_t vkuGetPlaneIndex(VkImageAspectFlagBits aspect) {
switch (aspect) {
case VK_IMAGE_ASPECT_PLANE_0_BIT:
return 0;
case VK_IMAGE_ASPECT_PLANE_1_BIT:
return 1;
case VK_IMAGE_ASPECT_PLANE_2_BIT:
return 2;
default:
return VKU_FORMAT_INVALID_INDEX;
}
}
#ifdef __cplusplus
}
#endif''')
self.write("".join(out))