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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 787 | chris | 1 | using System; |
| 2 | using System.Collections.Generic; |
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| 3 | using System.Linq; |
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| 4 | using System.Text; |
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| 5 | using System.Threading.Tasks; |
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| 6 | |||
| 7 | using Tao.OpenGl; |
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| 8 | |||
| 9 | namespace BauzoidNET.graphics.renderstates |
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| 10 | { |
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| 11 | public class ScissorStates : RenderStatesObject |
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| 12 | { |
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| 13 | public class ScissorRect |
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| 14 | { |
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| 15 | public int x; |
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| 16 | public int y; |
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| 17 | public int width; |
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| 18 | public int height; |
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| 19 | |||
| 20 | public ScissorRect(int _x, int _y, int _w, int _h) |
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| 21 | { |
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| 22 | x = _x; |
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| 23 | y = _y; |
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| 24 | width = _w; |
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| 25 | height = _h; |
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| 26 | } |
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| 27 | } |
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| 28 | |||
| 29 | private bool mEnabled = false; |
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| 30 | private ScissorRect mScissorRect = null; // not set means full screen |
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| 31 | private bool mCurrentlyEnabled = false; |
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| 32 | private bool mDefaultEnabled = false; |
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| 33 | |||
| 34 | public ScissorStates(RenderStates renderStates) : base(renderStates) |
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| 35 | { |
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| 36 | |||
| 37 | } |
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| 38 | |||
| 39 | public override void activate(bool force) |
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| 40 | { |
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| 41 | if ((force) || (mEnabled != mCurrentlyEnabled)) |
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| 42 | { |
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| 43 | if (mEnabled && (mScissorRect != null)) |
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| 44 | { |
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| 45 | mCurrentlyEnabled = true; |
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| 46 | Gl.glEnable(Gl.GL_SCISSOR_TEST); |
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| 47 | Gl.glScissor(mScissorRect.x, mScissorRect.y, mScissorRect.width, mScissorRect.height); |
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| 48 | } |
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| 49 | else |
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| 50 | { |
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| 51 | Gl.glDisable(Gl.GL_SCISSOR_TEST); |
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| 52 | mCurrentlyEnabled = false; |
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| 53 | } |
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| 54 | } |
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| 55 | } |
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| 56 | |||
| 57 | public override void reset() |
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| 58 | { |
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| 59 | if ((mLocked) || (mRenderStates.isLocked())) |
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| 60 | return; |
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| 61 | |||
| 62 | mEnabled = mDefaultEnabled; |
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| 63 | mScissorRect = null; |
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| 64 | } |
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| 65 | |||
| 66 | /** Check enabled state. */ |
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| 67 | public bool isEnabled() |
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| 68 | { |
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| 69 | return mEnabled; |
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| 70 | } |
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| 71 | |||
| 72 | /** Check default enabled state. */ |
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| 73 | public bool isDefaultEnabled() |
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| 74 | { |
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| 75 | return mDefaultEnabled; |
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| 76 | } |
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| 77 | |||
| 78 | /** Set enabled state. */ |
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| 79 | public void setEnabled(bool value) |
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| 80 | { |
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| 81 | if ((mLocked) || (mRenderStates.isLocked())) |
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| 82 | return; |
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| 83 | mEnabled = value; |
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| 84 | } |
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| 85 | |||
| 86 | /** Set default enabled state. */ |
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| 87 | public void setDefaultEnabled(bool value) |
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| 88 | { |
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| 89 | if ((mLocked) || (mRenderStates.isLocked())) |
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| 90 | return; |
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| 91 | mDefaultEnabled = value; |
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| 92 | } |
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| 93 | |||
| 94 | /** Set a scissor rect. Note that Y is bottom up. */ |
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| 95 | public void setScissor(int x, int y, int w, int h) |
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| 96 | { |
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| 97 | mScissorRect = new ScissorRect(x, y, w, h); |
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| 98 | } |
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| 99 | } |
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| 100 | } |