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Added handling for OOM errors when allocating hologram rendering data. Closes #1105.

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This commit is contained in:
Florian Nücke 2015-04-30 11:44:47 +02:00
parent d5f1280fc9
commit 7d69f996cb
2 changed files with 24 additions and 5 deletions
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27
src/main/scala/li/cil/oc/client/renderer/tileentity/HologramRenderer.scala
View File

@ -57,7 +57,18 @@ object HologramRenderer extends TileEntitySpecialRenderer with Callable[Int] wit
/** Used to pass the current screen along to call(). */
private var hologram: Hologram = null
/**
* Whether initialization failed (e.g. due to an out of memory error) and we
* should render using the fallback renderer instead.
*/
private var failed = false
override def renderTileEntityAt(te: TileEntity, x: Double, y: Double, z: Double, f: Float) {
if (failed) {
HologramRendererFallback.renderTileEntityAt(te, x, y, z, f)
return
}
RenderState.checkError(getClass.getName + ".renderTileEntityAt: entering (aka: wasntme)")
hologram = te.asInstanceOf[Hologram]
@ -142,12 +153,13 @@ object HologramRenderer extends TileEntitySpecialRenderer with Callable[Int] wit
}
def draw(glBuffer: Int) {
initialize()
validate(glBuffer)
publish(glBuffer)
if (initialize()) {
validate(glBuffer)
publish(glBuffer)
}
}
private def initialize() {
private def initialize(): Boolean = !failed && (try {
// First run only, create structure information.
if (commonBuffer == 0) {
dataBuffer = BufferUtils.createIntBuffer(hologram.width * hologram.width * hologram.height * 6 * 4 * 2)
@ -222,7 +234,14 @@ object HologramRenderer extends TileEntitySpecialRenderer with Callable[Int] wit
GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, commonBuffer)
GL15.glBufferData(GL15.GL_ARRAY_BUFFER, data, GL15.GL_STATIC_DRAW)
}
true
}
catch {
case oom: OutOfMemoryError =>
HologramRendererFallback.text = "Not enough memory"
failed = true
false
})
private def validate(glBuffer: Int) {
// Refresh indexes when the hologram's data changed.

2
src/main/scala/li/cil/oc/client/renderer/tileentity/HologramRendererFallback.scala
View File

@ -7,7 +7,7 @@ import net.minecraft.tileentity.TileEntity
import org.lwjgl.opengl.GL11
object HologramRendererFallback extends TileEntitySpecialRenderer {
val text = "Requires OpenGL 1.5"
var text = "Requires OpenGL 1.5"
override def renderTileEntityAt(te: TileEntity, x: Double, y: Double, z: Double, f: Float) {
RenderState.checkError(getClass.getName + ".renderTileEntityAt: entering (aka: wasntme)")