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182 lines
3.4 KiB
Smalltalk
182 lines
3.4 KiB
Smalltalk
Class {
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#name : #DiyaRendererContext,
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#superclass : #DiyaSingleton,
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#instVars : [
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'mouse',
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'display',
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'vbo',
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'vao',
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'texture0',
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'projection',
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'assets',
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'window',
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'vbuffer',
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'voffset'
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],
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#pools : [
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'OpenGLConstants',
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'OpenGLTypes'
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],
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#category : #'Diya-Graphics'
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}
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{ #category : #accessing }
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DiyaRendererContext class >> bufferSize [
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^ 524288 "512Kb"
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]
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{ #category : #'instance creation' }
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DiyaRendererContext class >> cleanUpInstance: singleton [
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singleton ifNil:[^self].
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singleton destroy
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]
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{ #category : #'instance creation' }
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DiyaRendererContext class >> maxFloatBufferSize [
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^4096
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]
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{ #category : #accessing }
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DiyaRendererContext >> assets [
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^ assets
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]
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{ #category : #accessing }
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DiyaRendererContext >> assets: anObject [
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assets := anObject
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]
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{ #category : #accessing }
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DiyaRendererContext >> destroy [
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self disableGLAttribute: 0.
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vbuffer free.
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vao delete.
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vbo delete.
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texture0 delete.
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]
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{ #category : #registration }
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DiyaRendererContext >> disableGLAttribute: attribute [
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vao disableAttribute: attribute
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]
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{ #category : #accessing }
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DiyaRendererContext >> display [
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^ display
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]
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{ #category : #accessing }
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DiyaRendererContext >> display: anObject [
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display := anObject
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]
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{ #category : #registration }
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DiyaRendererContext >> enableGLAttribute: attribute [
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vao enableAttribute: attribute.
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]
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{ #category : #accessing }
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DiyaRendererContext >> initialize [
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super initialize.
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vbo := OpenGLVertexBuffer new.
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vao := OpenGLVertexArray new.
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texture0 := OpenGLTexture fromUnit: 0.
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vao bind.
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vbo bind: GL_ARRAY_BUFFER.
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projection := Array2D identity: 4.
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assets := AssetManager new.
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"allocate vbuffer"
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vbuffer := FFIExternalArray externalNewType: GLfloat size: self class bufferSize.
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vbuffer autoRelease.
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voffset := 0.
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vbo data: GL_ARRAY_BUFFER data: vbuffer usage: GL_STREAM_DRAW.
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self enableGLAttribute: 0.
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OpenGLVertexArray vertexAttributePointerIndex: 0 size:4 type: GL_FLOAT normalized: GL_FALSE stride: 16 pointer: nil.
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]
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{ #category : #accessing }
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DiyaRendererContext >> mouse [
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^ mouse
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]
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{ #category : #accessing }
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DiyaRendererContext >> mouse: anObject [
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mouse := anObject
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]
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{ #category : #accessing }
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DiyaRendererContext >> projection [
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^ projection
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]
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{ #category : #registration }
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DiyaRendererContext >> resetBuffer [
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voffset := 0
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]
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{ #category : #accessing }
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DiyaRendererContext >> resolution [
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^ (display w) @ (display h)
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]
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{ #category : #registration }
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DiyaRendererContext >> setTexture: texture [
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texture setup.
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texture0 setImage2D: texture.
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texture0 active.
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]
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{ #category : #registration }
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DiyaRendererContext >> submitData: data [
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|n|
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n := self voffset.
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voffset := voffset + (data size << 2).
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voffset > self class bufferSize ifTrue:[
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^ DiyaCoreAPIError signal: 'Out of video buffer memory'
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].
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vbo subData: GL_ARRAY_BUFFER offset: n data: data.
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^ (n >> 4)
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]
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{ #category : #accessing }
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DiyaRendererContext >> texture0 [
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^ texture0
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]
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{ #category : #registration }
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DiyaRendererContext >> useProjection: aClass [
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projection := aClass fromDisplay: self display
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]
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{ #category : #accessing }
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DiyaRendererContext >> vao [
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^ vao
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]
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{ #category : #accessing }
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DiyaRendererContext >> vbo [
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^ vbo
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]
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{ #category : #accessing }
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DiyaRendererContext >> vbuffer [
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^ vbuffer
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]
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{ #category : #accessing }
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DiyaRendererContext >> voffset [
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^ voffset
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]
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{ #category : #accessing }
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DiyaRendererContext >> window [
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^ window
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]
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{ #category : #accessing }
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DiyaRendererContext >> window: anObject [
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window := anObject
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]
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