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Diya-API/Diya/OpenGLTexture.class.st
2022-03-06 00:58:28 +01:00

129 lines
3.1 KiB
Smalltalk

Class {
#name : #OpenGLTexture,
#superclass : #DiyaBaseObject,
#instVars : [
'textureID',
'unit'
],
#pools : [
'OpenGLConstants',
'OpenGLTypes'
],
#category : #'Diya-OpenGL'
}
{ #category : #'as yet unclassified' }
OpenGLTexture class >> active: unit [
^self ffiActive: GL_TEXTURE_UNIT_BASE + unit
]
{ #category : #'as yet unclassified' }
OpenGLTexture class >> bind: target texture: texture [
^ self ffiCall: #(void glBindTexture(GLenum target,GLuint texture))
]
{ #category : #'as yet unclassified' }
OpenGLTexture class >> bindDefault: target [
self bind: target texture: 0
]
{ #category : #'as yet unclassified' }
OpenGLTexture class >> delete: n pointer:textures [
^ self ffiCall: #(void glDeleteTextures(GLsizei n,const GLuint * textures))
]
{ #category : #'as yet unclassified' }
OpenGLTexture class >> ffiActive: unit [
^self ffiCall: #(void glActiveTexture( GLenum unit))
]
{ #category : #'library path' }
OpenGLTexture class >> ffiLibraryName [
^ OpenGL ffiLibraryName
]
{ #category : #'as yet unclassified' }
OpenGLTexture class >> fromUnit: unit [
^self new unit: unit; yourself
]
{ #category : #'as yet unclassified' }
OpenGLTexture class >> genTexture: n pointer: textures [
^ self ffiCall: #(void glGenTextures(GLsizei n,GLuint * textures))
]
{ #category : #'as yet unclassified' }
OpenGLTexture class >> image2D: target level: level internalformat: internalformat w: width h: height border: border format: fmt type: type data: data [
^ self ffiCall: #(void glTexImage2D( GLenum target,GLint level,GLint internalformat,GLsizei width,GLsizei height,GLint border,GLenum fmt,GLenum type,const void * data))
]
{ #category : #'as yet unclassified' }
OpenGLTexture class >> parameteri: target pname: pname param: param [
^ self ffiCall: #(void glTexParameteri( GLenum target,GLenum pname,GLint param))
]
{ #category : #initialization }
OpenGLTexture >> active [
self class active: self unit
]
{ #category : #initialization }
OpenGLTexture >> bind: target [
^ self class bind: target texture: self textureID
]
{ #category : #initialization }
OpenGLTexture >> delete [
self class delete: 1 pointer: textureID getHandle.
]
{ #category : #initialization }
OpenGLTexture >> initialize [
textureID := FFIExternalArray externalNewType: GLint size:1.
textureID autoRelease.
textureID at:1 put: -1.
self class genTexture: 1 pointer: textureID getHandle.
unit := 0.
]
{ #category : #initialization }
OpenGLTexture >> maxTextureSize [
|ptr v|
ptr := FFIExternalArray externalNewType: GLint size:1.
ptr at:1 put: -1.
OpenGL getIntegerv: GL_MAX_TEXTURE_SIZE data: ptr getHandle.
v := ptr at:1.
ptr free.
^v
]
{ #category : #initialization }
OpenGLTexture >> setImage2D: tex2D [
self bind: tex2D target.
self class image2D: tex2D target
level: tex2D level
internalformat: tex2D internalFormat
w: tex2D width
h: tex2D height
border: tex2D border
format: tex2D format
type: tex2D type
data: tex2D data getHandle.
]
{ #category : #initialization }
OpenGLTexture >> textureID [
^textureID at: 1
]
{ #category : #accessing }
OpenGLTexture >> unit [
^ unit
]
{ #category : #accessing }
OpenGLTexture >> unit: anObject [
unit := anObject
]