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add a helper method copy of Texture.draw() that doesn't restrict to only managed Texture objects

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Gered 2013-07-20 09:56:23 -04:00
parent ec94bafd03
commit bb516baa2f
1 changed files with 19 additions and 2 deletions
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21
src/com/blarg/gdx/graphics/GraphicsHelpers.java
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@ -1,7 +1,7 @@
package com.blarg.gdx.graphics;
import com.badlogic.gdx.graphics.Camera;
import com.badlogic.gdx.graphics.Color;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.*;
import com.badlogic.gdx.graphics.g2d.BitmapFont;
import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
import com.badlogic.gdx.math.Vector3;
@ -48,4 +48,21 @@ public final class GraphicsHelpers {
spriteBatch.end();
shapeRenderer.end();
}
/**
* Same as {@link Texture#draw}, but also allows drawing the source Pixmap object to an unmanaged Texture object.
* Note that doing so will mean that the original texture image data will be restored if the OpenGL context is
* restored (any Pixmap's drawn to it will need to be redrawn after the context restore).
*/
public static void drawToTexture (Texture destTexture, Pixmap srcPixmap, int x, int y) {
Gdx.gl.glBindTexture(GL10.GL_TEXTURE_2D, destTexture.getTextureObjectHandle());
Gdx.gl.glTexSubImage2D(
GL10.GL_TEXTURE_2D, 0,
x, y,
srcPixmap.getWidth(), srcPixmap.getHeight(),
srcPixmap.getGLFormat(),
srcPixmap.getGLType(),
srcPixmap.getPixels()
);
}
}