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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1051 | chris | 1 | package com.gebauz.bauzoid.graphics.renderstates; |
| 2 | |||
| 3 | import com.badlogic.gdx.Gdx; |
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| 4 | import com.badlogic.gdx.graphics.GL20; |
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| 5 | |||
| 6 | public class ScissorStates extends RenderStatesObject |
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| 7 | { |
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| 8 | public class ScissorRect |
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| 9 | { |
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| 10 | public int x; |
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| 11 | public int y; |
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| 12 | public int width; |
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| 13 | public int height; |
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| 14 | |||
| 15 | public ScissorRect(int _x, int _y, int _w, int _h) |
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| 16 | { |
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| 17 | x = _x; |
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| 18 | y = _y; |
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| 19 | width = _w; |
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| 20 | height = _h; |
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| 21 | } |
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| 22 | } |
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| 23 | |||
| 24 | private boolean mEnabled = false; |
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| 25 | private ScissorRect mScissorRect = null; // not set means full screen |
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| 26 | private boolean mCurrentlyEnabled = false; |
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| 27 | private boolean mDefaultEnabled = false; |
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| 28 | |||
| 29 | public ScissorStates(RenderStates renderStates) |
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| 30 | { |
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| 31 | super(renderStates); |
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| 32 | |||
| 33 | } |
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| 34 | |||
| 35 | @Override |
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| 36 | public void activate(boolean force) |
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| 37 | { |
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| 38 | if ((force) || (mEnabled != mCurrentlyEnabled)) |
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| 39 | { |
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| 40 | if (mEnabled && (mScissorRect != null)) |
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| 41 | { |
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| 42 | mCurrentlyEnabled = true; |
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| 43 | Gdx.gl.glEnable(GL20.GL_SCISSOR_TEST); |
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| 44 | Gdx.gl.glScissor(mScissorRect.x, mScissorRect.y, mScissorRect.width, mScissorRect.height); |
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| 45 | } |
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| 46 | else |
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| 47 | { |
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| 48 | Gdx.gl.glDisable(GL20.GL_SCISSOR_TEST); |
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| 49 | mCurrentlyEnabled = false; |
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| 50 | } |
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| 51 | } |
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| 52 | } |
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| 53 | |||
| 54 | @Override |
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| 55 | public void reset() |
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| 56 | { |
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| 57 | if ((mLocked) || (mRenderStates.isLocked())) |
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| 58 | return; |
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| 59 | |||
| 60 | mEnabled = mDefaultEnabled; |
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| 61 | mScissorRect = null; |
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| 62 | } |
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| 63 | |||
| 64 | /** Check enabled state. */ |
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| 65 | public final boolean isEnabled() |
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| 66 | { |
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| 67 | return mEnabled; |
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| 68 | } |
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| 69 | |||
| 70 | /** Check default enabled state. */ |
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| 71 | public final boolean isDefaultEnabled() |
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| 72 | { |
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| 73 | return mDefaultEnabled; |
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| 74 | } |
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| 75 | |||
| 76 | /** Set enabled state. */ |
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| 77 | public final void setEnabled(boolean value) |
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| 78 | { |
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| 79 | if ((mLocked) || (mRenderStates.isLocked())) |
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| 80 | return; |
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| 81 | mEnabled = value; |
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| 82 | } |
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| 83 | |||
| 84 | /** Set default enabled state. */ |
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| 85 | public final void setDefaultEnabled(boolean value) |
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| 86 | { |
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| 87 | if ((mLocked) || (mRenderStates.isLocked())) |
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| 88 | return; |
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| 89 | mDefaultEnabled = value; |
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| 90 | } |
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| 91 | |||
| 92 | /** Set a scissor rect. Note that Y is bottom up. */ |
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| 93 | public final void setScissor(int x, int y, int w, int h) |
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| 94 | { |
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| 95 | mScissorRect = new ScissorRect(x, y, w, h); |
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| 96 | } |
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| 97 | } |
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| 98 |