streampack-core/io.github.thibaultbee.streampack.core.elements.processing.video.utils/GLUtils

GLUtils

object GLUtils

Utility class for OpenGL ES.

Types

BlankShaderProgram

class BlankShaderProgram : GLUtils.Program2D

InputFormat

enum InputFormat : Enum<GLUtils.InputFormat>

Program2D

abstract class Program2D(vertexShaderSource: String, fragmentShaderSource: String)

SamplerShaderProgram

class SamplerShaderProgram(dynamicRange: DynamicRangeProfile, shaderProvider: ShaderProvider) : GLUtils.Program2D

Properties

BLANK_FRAGMENT_SHADER

const val BLANK_FRAGMENT_SHADER: String

BLANK_VERTEX_SHADER

const val BLANK_VERTEX_SHADER: String

DEFAULT_VERTEX_SHADER

val DEFAULT_VERTEX_SHADER: String

EGL_GL_COLORSPACE_BT2020_HLG_EXT

const val EGL_GL_COLORSPACE_BT2020_HLG_EXT: Int = 13632

EGL_GL_COLORSPACE_KHR

const val EGL_GL_COLORSPACE_KHR: Int = 12445

EMPTY_ATTRIBS

val EMPTY_ATTRIBS: IntArray

glVersionNumber

val glVersionNumber: String

HDR_VERTEX_SHADER

val HDR_VERTEX_SHADER: String

HLG_SURFACE_ATTRIBS

val HLG_SURFACE_ATTRIBS: IntArray

IDENTITY_MATRIX

val IDENTITY_MATRIX: FloatArray

NO_OUTPUT_SURFACE

val NO_OUTPUT_SURFACE: OutputSurface

PIXEL_STRIDE

const val PIXEL_STRIDE: Int = 4

SIZEOF_FLOAT

const val SIZEOF_FLOAT: Int = 4

TAG

const val TAG: String

TEX_BUF

val TEX_BUF: FloatBuffer

TEX_COORDS

val TEX_COORDS: FloatArray

VAR_TEXTURE

const val VAR_TEXTURE: String

VAR_TEXTURE_COORD

const val VAR_TEXTURE_COORD: String

VERSION_UNKNOWN

const val VERSION_UNKNOWN: String

Unknown version information.

VERTEX_BUF

val VERTEX_BUF: FloatBuffer

VERTEX_COORDS

val VERTEX_COORDS: FloatArray

Functions

checkEglErrorOrLog

fun checkEglErrorOrLog(op: String)

Checks the egl error and log.

checkEglErrorOrThrow

fun checkEglErrorOrThrow(op: String)

Checks the egl error and throw.

checkGlErrorOrThrow

fun checkGlErrorOrThrow(op: String)

Checks the gl error and throw.

checkGlThreadOrThrow

fun checkGlThreadOrThrow(thread: Thread?)

Checks the gl thread.

checkInitializedOrThrow

fun checkInitializedOrThrow(initialized: AtomicBoolean, shouldInitialized: Boolean)

Checks the initialization status.

checkLocationOrThrow

fun checkLocationOrThrow(location: Int, label: String)

Checks the location error.

chooseSurfaceAttrib

fun chooseSurfaceAttrib(eglExtensions: String, dynamicRange: DynamicRangeProfile): IntArray

Chooses the surface attributes for HDR 10bit.

create4x4IdentityMatrix

fun create4x4IdentityMatrix(): FloatArray

Creates a 4x4 identity matrix.

createFloatBuffer

fun createFloatBuffer(coords: FloatArray): FloatBuffer

Creates a FloatBuffer.

createPBufferSurface

fun createPBufferSurface(eglDisplay: EGLDisplay, eglConfig: EGLConfig, width: Int, height: Int): EGLSurface

Creates a new EGL pixel buffer surface.

createPrograms

fun createPrograms(dynamicRange: DynamicRangeProfile, shaderProviderOverrides: Map<GLUtils.InputFormat?, ShaderProvider?>): Map<GLUtils.InputFormat, GLUtils.Program2D>

Creates program objects based on shaders which are appropriate for each input format.

createTexture

fun createTexture(): Int

Creates a texture.

createWindowSurface

fun createWindowSurface(eglDisplay: EGLDisplay, eglConfig: EGLConfig, surface: Surface, surfaceAttrib: IntArray): EGLSurface

Creates an EGLSurface.

deleteFbo

fun deleteFbo(fbo: Int)

Deletes framebuffer object.

deleteTexture

fun deleteTexture(texture: Int)

Deletes texture.

generateFbo

fun generateFbo(): Int

Generates framebuffer object.

generateTexture

fun generateTexture(): Int

Generates texture.

getSurfaceSize

fun getSurfaceSize(eglDisplay: EGLDisplay, eglSurface: EGLSurface): Size

Gets the size of EGLSurface.

loadShader

fun loadShader(shaderType: Int, source: String): Int

Creates the vertex or fragment shader.

querySurface

fun querySurface(eglDisplay: EGLDisplay, eglSurface: EGLSurface, what: Int): Int

Queries the EGLSurface information.