Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 108 | chris | 1 | package com.gebauz.pingK.common.framework.renderstates; |
| 2 | |||
| 3 | import javax.microedition.khronos.opengles.GL10; |
||
| 4 | |||
| 5 | import com.gebauz.pingK.common.framework.GLUtil; |
||
| 6 | |||
| 7 | public class BlendingStates extends RenderStatesObject |
||
| 8 | { |
||
| 9 | |||
| 10 | public enum BlendingMode |
||
| 11 | { |
||
| 12 | ADD, |
||
| 13 | ALPHABLEND, |
||
| 14 | SUBTRACT, |
||
| 15 | // MIN, // supported on OpenGL ES |
||
| 16 | // MAX, // unsupported on OpenGL ES |
||
| 17 | MULTIPLY |
||
| 18 | }; |
||
| 19 | |||
| 20 | private boolean mEnabled = false; |
||
| 21 | private BlendingMode mBlendingMode = BlendingMode.ALPHABLEND; |
||
| 22 | private boolean mCurrentlyEnabled = false; |
||
| 23 | private BlendingMode mCurrentBlendingMode = BlendingMode.ALPHABLEND; |
||
| 24 | private boolean mDefaultEnabled = false; |
||
| 25 | private BlendingMode mDefaultBlendingMode = BlendingMode.ALPHABLEND; |
||
| 26 | |||
| 27 | |||
| 28 | public BlendingStates(RenderStates renderStates) |
||
| 29 | { |
||
| 30 | super(renderStates); |
||
| 31 | } |
||
| 32 | |||
| 33 | @Override |
||
| 34 | public void activate(boolean force) |
||
| 35 | { |
||
| 36 | GL10 gl = GLUtil.getGL(); |
||
| 37 | |||
| 38 | if ((force) || (mBlendingMode != mCurrentBlendingMode)) |
||
| 39 | { |
||
| 40 | mCurrentBlendingMode = mBlendingMode; |
||
| 41 | switch (mBlendingMode) |
||
| 42 | { |
||
| 43 | case ADD: |
||
| 44 | { |
||
| 45 | gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE); |
||
| 46 | break; |
||
| 47 | } |
||
| 48 | case ALPHABLEND: |
||
| 49 | { |
||
| 50 | gl.glBlendFunc(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA); |
||
| 51 | break; |
||
| 52 | } |
||
| 53 | case SUBTRACT: |
||
| 54 | { |
||
| 55 | gl.glBlendFunc(GL10.GL_ZERO, GL10.GL_SRC_ALPHA); |
||
| 56 | break; |
||
| 57 | } |
||
| 58 | case MULTIPLY: |
||
| 59 | { |
||
| 60 | gl.glBlendFunc(GL10.GL_ZERO, GL10.GL_SRC_COLOR); |
||
| 61 | break; |
||
| 62 | } |
||
| 63 | } |
||
| 64 | } |
||
| 65 | |||
| 66 | if ((force) || (mEnabled != mCurrentlyEnabled)) |
||
| 67 | { |
||
| 68 | mCurrentlyEnabled = mEnabled; |
||
| 69 | if (mEnabled) |
||
| 70 | { |
||
| 71 | gl.glEnable(GL10.GL_BLEND); |
||
| 72 | } |
||
| 73 | else |
||
| 74 | { |
||
| 75 | gl.glDisable(GL10.GL_BLEND); |
||
| 76 | } |
||
| 77 | } |
||
| 78 | } |
||
| 79 | |||
| 80 | @Override |
||
| 81 | public void reset() |
||
| 82 | { |
||
| 83 | mEnabled = mDefaultEnabled; |
||
| 84 | mBlendingMode = mDefaultBlendingMode; |
||
| 85 | } |
||
| 86 | |||
| 87 | |||
| 88 | public final boolean isEnabled() { return mEnabled; } |
||
| 89 | public final boolean isDefaultEnabled() { return mEnabled; } |
||
| 90 | public final BlendingMode getBlendingMode() { return mBlendingMode; } |
||
| 91 | public final BlendingMode getDefaultBlendingMode() { return mDefaultBlendingMode; } |
||
| 92 | |||
| 93 | public final void setEnabled(boolean value) |
||
| 94 | { |
||
| 95 | if ((mLocked) || (mRenderStates.isLocked())) |
||
| 96 | return; |
||
| 97 | |||
| 98 | mEnabled = value; |
||
| 99 | } |
||
| 100 | |||
| 101 | public final void setDefaultEnabled(boolean value) |
||
| 102 | { |
||
| 103 | if ((mLocked) || (mRenderStates.isLocked())) |
||
| 104 | return; |
||
| 105 | |||
| 106 | mDefaultEnabled = value; |
||
| 107 | } |
||
| 108 | |||
| 109 | public final void setBlendingMode(BlendingMode value) |
||
| 110 | { |
||
| 111 | if ((mLocked) || (mRenderStates.isLocked())) |
||
| 112 | return; |
||
| 113 | |||
| 114 | mBlendingMode = value; |
||
| 115 | } |
||
| 116 | |||
| 117 | public final void setDefaultBlendingMode(BlendingMode value) |
||
| 118 | { |
||
| 119 | if ((mLocked) || (mRenderStates.isLocked())) |
||
| 120 | return; |
||
| 121 | |||
| 122 | mDefaultBlendingMode = value; |
||
| 123 | } |
||
| 124 | |||
| 125 | } |
||
| 126 | |||
| 127 |