ColorSpaceConvertBindings.h File Reference

Bind group indices of the sRGB-to-linear color space conversion program. More...

#include <array>
#include <cmath>
#include <cstdint>
#include <string_view>

Include dependency graph for ColorSpaceConvertBindings.h:

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Namespaces
namespace	donner
	Top-level Donner namespace, which is split into different sub-namespaces such as donner::svg and donner::css.

Enumerations
enum class	donner::gpu::shader::programs::ColorSpaceConvertBinding : uint32_t {   InputTexture = 0 ,   OutputTexture = 1 ,   TransferTable = 3 ,   Params = 2 }
	Bind group indices of the color space conversion program, shared by the IR builder and every host that creates its bind group layout. More...

Functions
const std::array< float, 2 *kColorTransferSampleCount > &	donner::gpu::shader::programs::ColorTransferSamples ()
	Returns process-lifetime samples of both standard transfer functions, rounded once to float. The first half maps sRGB to linear light; the second half maps linear light to sRGB.

Variables
constexpr std::string_view	donner::gpu::shader::programs::kColorSpaceConvertEntryPoint = "cs_main"
	Name of the compute entry point, as the IR declares it and the emitted source spells it.
constexpr uint32_t	donner::gpu::shader::programs::kColorSpaceConvertWorkgroupSize = 8
	Workgroup size the entry point declares.
constexpr uint32_t	donner::gpu::shader::programs::kColorSpaceConvertSrgbToLinear = 0
	Value of the direction parameter that converts sRGB-encoded channels to linear light.
constexpr uint32_t	donner::gpu::shader::programs::kColorSpaceConvertLinearToSrgb = 1
	Value of the direction parameter that converts linear-light channels to sRGB encoding.
constexpr uint32_t	donner::gpu::shader::programs::kColorTransferSampleCount = 4096
	Samples per direction, including both endpoints of the unit interval.

Detailed Description

Bind group indices of the sRGB-to-linear color space conversion program.

Split out from the program header so a host can build the program's bind group layout without linking the shader IR. The pipeline that does so consumes build-time emitted WGSL, and pulling in the IR for an enum would put the emitters back in binaries that exist to avoid them.

Enumeration Type Documentation

ColorSpaceConvertBinding

enum class donner::gpu::shader::programs::ColorSpaceConvertBinding : uint32_t

strong

Bind group indices of the color space conversion program, shared by the IR builder and every host that creates its bind group layout.

Enumerator
InputTexture	Sampled texture_2d<f32> source.
OutputTexture	texture_storage_2d<rgba32float, write> destination.
TransferTable	Read-only float transfer samples, both directions.
Params	Uniform buffer selecting the direction of the transfer.

Variable Documentation

kColorSpaceConvertWorkgroupSize

uint32_t donner::gpu::shader::programs::kColorSpaceConvertWorkgroupSize = 8

inlineconstexpr

Workgroup size the entry point declares.

One definition, read by the IR builder that writes the shader and by every host that creates the pipeline or sizes a dispatch from it. A host restating it could drift, and a larger stale copy would silently under-dispatch, leaving the tail of the destination unwritten.