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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| package com.simongellis.leia.webxr | ||
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| interface Renderer { | ||
| fun onSurfaceCreated() | ||
| fun onSurfaceChanged(width: Int, height: Int) | ||
| fun onDrawFrame() | ||
| } |
147 changes: 147 additions & 0 deletions
147
app/src/main/java/com/simongellis/leia/webxr/RendererImpl.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,147 @@ | ||
| package com.simongellis.leia.webxr | ||
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| import android.graphics.SurfaceTexture | ||
| import android.opengl.GLES20.* | ||
| import android.opengl.GLES30 | ||
| import android.os.Handler | ||
| import android.os.Looper | ||
| import android.util.Size | ||
| import com.leia.sdk.graphics.Interlacer | ||
| import com.leia.sdk.graphics.SurfaceTextureReadyCallback | ||
| import com.leia.sdk.views.InputGLBinding | ||
| import com.leia.sdk.views.InputViewsAsset | ||
| import com.leia.sdk.views.InterlacedRenderer | ||
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| /** | ||
| * An InputViewsAsset.Impl which uses an OpenGL "Renderer" instance to draw to the screen. | ||
| * The renderer should draw a 2x1 side-by-side image _upside down_. | ||
| */ | ||
| class RendererImpl(val renderer: Renderer, listener: SurfaceTextureReadyCallback?) : InputViewsAsset.Impl(listener) { | ||
| constructor(renderer: Renderer) : this(renderer, null) | ||
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| override fun createGLBinding(): InputGLBinding { | ||
| return RendererGLBinding(this, this.mSurfaceTextureReadyListener) | ||
| } | ||
|
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| class RendererGLBinding(impl: RendererImpl, private val _listener: SurfaceTextureReadyCallback?) : InputGLBinding(impl) { | ||
| private val _texture = Texture() | ||
| private var _surface: SurfaceTexture? = null | ||
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| private var _stale = true | ||
| private var _framebuffer: Int? = null | ||
| private var _size: Size? = null | ||
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| override fun reset() { | ||
| destroyFramebuffer() | ||
| destroyTexture() | ||
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| _surface?.release() | ||
| _surface = null | ||
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| _stale = true | ||
| _size = null | ||
| super.reset() | ||
| } | ||
|
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| override fun update(interlacer: InterlacedRenderer, isProtected: Boolean) { | ||
| super.update(interlacer, isProtected) | ||
| if (_surface?.isReleased == true) { | ||
| _surface = null | ||
| } | ||
| if (this.mIsValid) { | ||
| val asset = updateAsset(RendererImpl::class.java) ?: return | ||
| if (_texture.glId == -1) { | ||
| initTexture(isProtected) | ||
| initFramebuffer() | ||
| _stale = true | ||
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| _surface = SurfaceTexture(_texture.glId) | ||
| _listener?.also { | ||
| Handler(Looper.getMainLooper()).post { it.onSurfaceTextureReady(_surface) } | ||
| } | ||
| asset.renderer.onSurfaceCreated() | ||
| } | ||
| } | ||
| } | ||
|
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| override fun render(interlacer: Interlacer, viewportWidth: Int, viewportHeight: Int) { | ||
| val asset = updateAsset(RendererImpl::class.java) ?: return | ||
| if (this._texture.glId == -1) { return } | ||
|
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| val newSize = Size(viewportWidth, viewportHeight) | ||
| if (_size != newSize) { | ||
| _surface!!.setDefaultBufferSize(viewportWidth, viewportHeight) | ||
| asset.renderer.onSurfaceChanged(viewportWidth, viewportHeight) | ||
| _size = newSize | ||
| _stale = true | ||
| } | ||
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| getPreparedFramebuffer()?.let { | ||
| // renderer.onDrawFrame should draw an upside-down 2x1 image to this FB. | ||
| glBindFramebuffer(GL_FRAMEBUFFER, it) | ||
| asset.renderer.onDrawFrame() | ||
| } | ||
| interlacer.doPostProcess(viewportWidth, viewportHeight, this._texture.glId, this._texture.glType) | ||
| } | ||
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| private fun initTexture(isProtected: Boolean) { | ||
| val textureIds = IntArray(1) | ||
| glGenTextures(textureIds.size, textureIds, 0) | ||
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| glBindTexture(GL_TEXTURE_2D, textureIds[0]) | ||
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR) | ||
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR) | ||
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE) | ||
| glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE) | ||
| if (isProtected) { | ||
| GLES30.glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_PROTECTED_EXT, 1) | ||
| } | ||
|
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| _texture.glId = textureIds[0] | ||
| _texture.glType = GL_TEXTURE_2D | ||
| } | ||
|
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| private fun destroyTexture() { | ||
| if (_texture.glId != -1 && isValidGLContext) { | ||
| val textureIds = intArrayOf(_texture.glId) | ||
| glDeleteTextures(textureIds.size, textureIds, 0) | ||
| } | ||
| _texture.glId = -1 | ||
| _texture.glType = -1 | ||
| } | ||
|
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| private fun initFramebuffer() { | ||
| val fbIds = IntArray(1) | ||
| glGenFramebuffers(fbIds.size, fbIds, 0) | ||
| _framebuffer = fbIds[0] | ||
| } | ||
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| private fun destroyFramebuffer() { | ||
| val framebuffer = _framebuffer ?: return | ||
| val fbIds = intArrayOf(framebuffer) | ||
| glDeleteFramebuffers(fbIds.size, fbIds, 0) | ||
| _framebuffer = null | ||
| } | ||
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| private fun getPreparedFramebuffer(): Int? { | ||
| if (!_stale) return _framebuffer | ||
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| val framebuffer = _framebuffer ?: return null | ||
| val size = _size ?: return null | ||
| val textureId = if (_texture.glId != -1) { _texture.glId } else { return null } | ||
| _stale = false | ||
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| // Define the texture your app is rendering to. | ||
| glBindTexture(GL_TEXTURE_2D, textureId) | ||
| glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, size.width, size.height, 0, GL_RGB, GL_UNSIGNED_BYTE, null) | ||
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| // Attach the texture to our framebuffer. | ||
| glBindFramebuffer(GL_FRAMEBUFFER, framebuffer) | ||
| glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, textureId, 0) | ||
| glBindFramebuffer(GL_FRAMEBUFFER, 0) | ||
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| return framebuffer | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,2 +1,2 @@ | ||
| configurations.maybeCreate("default") | ||
| artifacts.add("default", file('cnsdk.aar')) | ||
| artifacts.add("default", file('sdk-faceTrackingService-0.7.28.aar')) |
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