donner::gpu::shader::programs::SlugGradientParams Struct Reference

Host uniform layout for dedicated Slug gradients. More...

#include "donner/gpu/shader/programs/SlugGradient.h"

Public Attributes
float	mvp [16]
	Column-major transform from path to clip space.
float	viewport [2]
	Render-target extent in pixels.
uint32_t	fillRule
	Zero for nonzero winding, one for even-odd.
uint32_t	spreadMode
	Zero clamps, one reflects, two repeats.
float	row0 [4]
	First affine row of gradientFromPath.
float	row1 [4]
	Second affine row of gradientFromPath.
float	startGrad [2]
	Linear-gradient start in gradient space.
float	endGrad [2]
	Linear-gradient end in gradient space.
float	radialCenter [2]
	Outer-circle center in gradient space.
float	radialFocal [2]
	Focal-circle center in gradient space.
float	radialRadius
	Outer-circle radius.
float	radialFocalRadius
	Focal-circle radius.
uint32_t	gradientKind
	Zero selects linear, one selects radial.
uint32_t	stopCount
	Admitted stop count, at most sixteen.
float	stopColors [kSlugGradientMaxStops *4]
	Straight-alpha RGBA stop colors.
float	stopOffsets [4 *4]
	Stop offsets packed four per vector.
uint32_t	hasClipPolygon
	One enables the convex clip half-planes.
uint32_t	hasClipMask
	One intersects the path-clip texture.
uint32_t	antialias
	One enables analytic coverage; zero uses binary coverage.
uint32_t	_clipPad2
	Reserved layout padding.
float	gridYBase
	Horizontal-band grid origin.
float	gridHStride
	Horizontal-band grid spacing.
uint32_t	gridHBandCount
	Horizontal-band grid cell count.
float	gridXBase
	Vertical-band grid origin.
float	gridVStride
	Vertical-band grid spacing.
uint32_t	gridVBandCount
	Vertical-band grid cell count.
uint32_t	_gridPad0
	Reserved layout padding.
uint32_t	_gridPad1
	Reserved layout padding.
float	clipPolygonPlanes [16]
	Four inward-facing clip half-planes in viewport pixels.
uint32_t	boundingVertexCount
	Convex bounding-polygon vertex count, at most eight.
uint32_t	_boundingPad0
	Reserved layout padding.
uint32_t	_boundingPad1
	Reserved layout padding.
uint32_t	_boundingPad2
	Reserved layout padding.
float	boundingVertices [4 *4]
	Four packed pairs of bounding vertices.
float	pathFromPixel [4]
	Inverse linear transform, two columns, pixel to path.
float	pixelOrigin [2]
	Integer pixel the mapping is taken relative to.
float	pathOffset [2]
	Path position of pixelOrigin's fractional remainder.

Detailed Description

Host uniform layout for dedicated Slug gradients.

Member Data Documentation

_boundingPad0

uint32_t donner::gpu::shader::programs::SlugGradientParams::_boundingPad0

Reserved layout padding.

_boundingPad1

uint32_t donner::gpu::shader::programs::SlugGradientParams::_boundingPad1

Reserved layout padding.

_boundingPad2

uint32_t donner::gpu::shader::programs::SlugGradientParams::_boundingPad2

Reserved layout padding.

_clipPad2

uint32_t donner::gpu::shader::programs::SlugGradientParams::_clipPad2

Reserved layout padding.

_gridPad0

uint32_t donner::gpu::shader::programs::SlugGradientParams::_gridPad0

Reserved layout padding.

_gridPad1

uint32_t donner::gpu::shader::programs::SlugGradientParams::_gridPad1

Reserved layout padding.

antialias

uint32_t donner::gpu::shader::programs::SlugGradientParams::antialias

One enables analytic coverage; zero uses binary coverage.

boundingVertexCount

uint32_t donner::gpu::shader::programs::SlugGradientParams::boundingVertexCount

Convex bounding-polygon vertex count, at most eight.

boundingVertices

float donner::gpu::shader::programs::SlugGradientParams::boundingVertices[4 *4]

Four packed pairs of bounding vertices.

clipPolygonPlanes

float donner::gpu::shader::programs::SlugGradientParams::clipPolygonPlanes[16]

Four inward-facing clip half-planes in viewport pixels.

endGrad

float donner::gpu::shader::programs::SlugGradientParams::endGrad[2]

Linear-gradient end in gradient space.

fillRule

uint32_t donner::gpu::shader::programs::SlugGradientParams::fillRule

Zero for nonzero winding, one for even-odd.

gradientKind

uint32_t donner::gpu::shader::programs::SlugGradientParams::gradientKind

Zero selects linear, one selects radial.

gridHBandCount

uint32_t donner::gpu::shader::programs::SlugGradientParams::gridHBandCount

Horizontal-band grid cell count.

gridHStride

float donner::gpu::shader::programs::SlugGradientParams::gridHStride

Horizontal-band grid spacing.

gridVBandCount

uint32_t donner::gpu::shader::programs::SlugGradientParams::gridVBandCount

Vertical-band grid cell count.

gridVStride

float donner::gpu::shader::programs::SlugGradientParams::gridVStride

Vertical-band grid spacing.

gridXBase

float donner::gpu::shader::programs::SlugGradientParams::gridXBase

Vertical-band grid origin.

gridYBase

float donner::gpu::shader::programs::SlugGradientParams::gridYBase

Horizontal-band grid origin.

hasClipMask

uint32_t donner::gpu::shader::programs::SlugGradientParams::hasClipMask

One intersects the path-clip texture.

hasClipPolygon

uint32_t donner::gpu::shader::programs::SlugGradientParams::hasClipPolygon

One enables the convex clip half-planes.

mvp

float donner::gpu::shader::programs::SlugGradientParams::mvp[16]

Column-major transform from path to clip space.

pathFromPixel

float donner::gpu::shader::programs::SlugGradientParams::pathFromPixel[4]

Inverse linear transform, two columns, pixel to path.

pathOffset

float donner::gpu::shader::programs::SlugGradientParams::pathOffset[2]

Path position of pixelOrigin's fractional remainder.

pixelOrigin

float donner::gpu::shader::programs::SlugGradientParams::pixelOrigin[2]

Integer pixel the mapping is taken relative to.

radialCenter

float donner::gpu::shader::programs::SlugGradientParams::radialCenter[2]

Outer-circle center in gradient space.

radialFocal

float donner::gpu::shader::programs::SlugGradientParams::radialFocal[2]

Focal-circle center in gradient space.

radialFocalRadius

float donner::gpu::shader::programs::SlugGradientParams::radialFocalRadius

Focal-circle radius.

radialRadius

float donner::gpu::shader::programs::SlugGradientParams::radialRadius

Outer-circle radius.

row0

float donner::gpu::shader::programs::SlugGradientParams::row0[4]

First affine row of gradientFromPath.

row1

float donner::gpu::shader::programs::SlugGradientParams::row1[4]

Second affine row of gradientFromPath.

spreadMode

uint32_t donner::gpu::shader::programs::SlugGradientParams::spreadMode

Zero clamps, one reflects, two repeats.

startGrad

float donner::gpu::shader::programs::SlugGradientParams::startGrad[2]

Linear-gradient start in gradient space.

stopColors

float donner::gpu::shader::programs::SlugGradientParams::stopColors[kSlugGradientMaxStops *4]

Straight-alpha RGBA stop colors.

stopCount

uint32_t donner::gpu::shader::programs::SlugGradientParams::stopCount

Admitted stop count, at most sixteen.

stopOffsets

float donner::gpu::shader::programs::SlugGradientParams::stopOffsets[4 *4]

Stop offsets packed four per vector.

viewport

float donner::gpu::shader::programs::SlugGradientParams::viewport[2]

Render-target extent in pixels.

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The documentation for this struct was generated from the following file:

• donner/gpu/shader/programs/SlugGradient.h