Jason Sams | 40f1fa6 | 2013-01-08 11:52:32 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2012 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package android.renderscript; |
| 18 | |
Jason Sams | 40f1fa6 | 2013-01-08 11:52:32 -0800 | [diff] [blame] | 19 | /** |
| 20 | * |
Jason Sams | 02d56d9 | 2013-04-12 16:40:50 -0700 | [diff] [blame] | 21 | * Intrinsic for converting RGB to RGBA by using a 3D lookup table. The |
| 22 | * incoming r,g,b values are use as normalized x,y,z coordinates into a 3D |
| 23 | * allocation. The 8 nearest values are sampled and linearly interpolated. The |
| 24 | * result is placed in the output. |
| 25 | * |
Jason Sams | 40f1fa6 | 2013-01-08 11:52:32 -0800 | [diff] [blame] | 26 | **/ |
| 27 | public final class ScriptIntrinsic3DLUT extends ScriptIntrinsic { |
| 28 | private Allocation mLUT; |
| 29 | private Element mElement; |
| 30 | |
Tim Murray | 460a049 | 2013-11-19 12:45:54 -0800 | [diff] [blame] | 31 | private ScriptIntrinsic3DLUT(long id, RenderScript rs, Element e) { |
Jason Sams | 40f1fa6 | 2013-01-08 11:52:32 -0800 | [diff] [blame] | 32 | super(id, rs); |
| 33 | mElement = e; |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * Supported elements types are {@link Element#U8_4} |
| 38 | * |
| 39 | * The defaults tables are identity. |
| 40 | * |
Tim Murray | c11e25c | 2013-04-09 11:01:01 -0700 | [diff] [blame] | 41 | * @param rs The RenderScript context |
Jason Sams | 40f1fa6 | 2013-01-08 11:52:32 -0800 | [diff] [blame] | 42 | * @param e Element type for intputs and outputs |
| 43 | * |
| 44 | * @return ScriptIntrinsic3DLUT |
| 45 | */ |
| 46 | public static ScriptIntrinsic3DLUT create(RenderScript rs, Element e) { |
Tim Murray | 460a049 | 2013-11-19 12:45:54 -0800 | [diff] [blame] | 47 | long id = rs.nScriptIntrinsicCreate(8, e.getID(rs)); |
Jason Sams | 40f1fa6 | 2013-01-08 11:52:32 -0800 | [diff] [blame] | 48 | |
| 49 | if (!e.isCompatible(Element.U8_4(rs))) { |
Jason Sams | 1e645d2 | 2013-03-08 14:32:43 -0800 | [diff] [blame] | 50 | throw new RSIllegalArgumentException("Element must be compatible with uchar4."); |
Jason Sams | 40f1fa6 | 2013-01-08 11:52:32 -0800 | [diff] [blame] | 51 | } |
| 52 | |
| 53 | return new ScriptIntrinsic3DLUT(id, rs, e); |
| 54 | } |
| 55 | |
Tim Murray | c11e25c | 2013-04-09 11:01:01 -0700 | [diff] [blame] | 56 | /** |
| 57 | * Sets the {@link android.renderscript.Allocation} to be used as the lookup table. |
| 58 | * |
| 59 | * The lookup table must use the same {@link android.renderscript.Element} as the intrinsic. |
| 60 | * |
| 61 | */ |
| 62 | |
Jason Sams | 40f1fa6 | 2013-01-08 11:52:32 -0800 | [diff] [blame] | 63 | public void setLUT(Allocation lut) { |
| 64 | final Type t = lut.getType(); |
| 65 | |
| 66 | if (t.getZ() == 0) { |
| 67 | throw new RSIllegalArgumentException("LUT must be 3d."); |
| 68 | } |
| 69 | |
| 70 | if (!t.getElement().isCompatible(mElement)) { |
| 71 | throw new RSIllegalArgumentException("LUT element type must match."); |
| 72 | } |
| 73 | |
| 74 | mLUT = lut; |
| 75 | setVar(0, mLUT); |
| 76 | } |
| 77 | |
| 78 | |
| 79 | /** |
| 80 | * Invoke the kernel and apply the lookup to each cell of ain |
| 81 | * and copy to aout. |
| 82 | * |
| 83 | * @param ain Input allocation |
| 84 | * @param aout Output allocation |
| 85 | */ |
| 86 | public void forEach(Allocation ain, Allocation aout) { |
Tim Murray | 6f842ac | 2014-01-13 11:47:53 -0800 | [diff] [blame^] | 87 | forEach(ain, aout, null); |
Jason Sams | 40f1fa6 | 2013-01-08 11:52:32 -0800 | [diff] [blame] | 88 | } |
| 89 | |
| 90 | /** |
Tim Murray | 6f842ac | 2014-01-13 11:47:53 -0800 | [diff] [blame^] | 91 | * Invoke the kernel and apply the lookup to each cell of ain |
| 92 | * and copy to aout. |
| 93 | * |
| 94 | * @param ain Input allocation |
| 95 | * @param aout Output allocation |
| 96 | * @param opt Launch options for kernel |
| 97 | */ |
| 98 | public void forEach(Allocation ain, Allocation aout, Script.LaunchOptions opt) { |
| 99 | forEach(0, ain, aout, null, opt); |
| 100 | } |
| 101 | |
| 102 | |
| 103 | /** |
Jason Sams | 40f1fa6 | 2013-01-08 11:52:32 -0800 | [diff] [blame] | 104 | * Get a KernelID for this intrinsic kernel. |
| 105 | * |
| 106 | * @return Script.KernelID The KernelID object. |
| 107 | */ |
| 108 | public Script.KernelID getKernelID() { |
| 109 | return createKernelID(0, 3, null, null); |
| 110 | } |
| 111 | } |
| 112 | |