Add histogram intrinsic (01e9f905) · Commits · e / os / android_frameworks_base

api/current.txt

+10 −0

Original line number	Diff line number	Diff line
		@@ -21327,6 +21327,16 @@ package android.renderscript {
		method public void setInput(android.renderscript.Allocation);
		}

		public final class ScriptIntrinsicHistogram extends android.renderscript.ScriptIntrinsic {
		method public static android.renderscript.ScriptIntrinsicHistogram create(android.renderscript.RenderScript, android.renderscript.Element);
		method public void forEach(android.renderscript.Allocation);
		method public void forEach_dot(android.renderscript.Allocation);
		method public android.renderscript.Script.FieldID getFieldID_Input();
		method public android.renderscript.Script.KernelID getKernelID_seperate();
		method public void setDotCoefficients(float, float, float, float);
		method public void setOutput(android.renderscript.Allocation);
		}

		public final class ScriptIntrinsicLUT extends android.renderscript.ScriptIntrinsic {
		method public static android.renderscript.ScriptIntrinsicLUT create(android.renderscript.RenderScript, android.renderscript.Element);
		method public void forEach(android.renderscript.Allocation, android.renderscript.Allocation);

graphics/java/android/renderscript/ScriptIntrinsicHistogram.java

0 → 100644

+143 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2013 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package android.renderscript;

		import android.content.Context;
		import android.content.res.Resources;
		import android.util.Log;

		/**
		* Intrinsic Histogram filter.
		*
		*
		**/
		public final class ScriptIntrinsicHistogram extends ScriptIntrinsic {
		private Allocation mOut;

		private ScriptIntrinsicHistogram(int id, RenderScript rs) {
		super(id, rs);
		}

		/**
		* Create an intrinsic for calculating the histogram of an uchar
		* or uchar4 image.
		*
		* Supported elements types are {@link Element#U8_4, @link
		* Element#U8}
		*
		* @param rs The RenderScript context
		* @param e Element type for inputs and outputs
		*
		* @return ScriptIntrinsicHistogram
		*/
		public static ScriptIntrinsicHistogram create(RenderScript rs, Element e) {
		if ((!e.isCompatible(Element.U8_4(rs))) && (!e.isCompatible(Element.U8(rs)))) {
		throw new RSIllegalArgumentException("Unsuported element type.");
		}
		int id = rs.nScriptIntrinsicCreate(9, e.getID(rs));
		ScriptIntrinsicHistogram sib = new ScriptIntrinsicHistogram(id, rs);
		return sib;
		}

		public void forEach(Allocation ain) {
		int vecSize = mOut.getType().getElement().getVectorSize();
		if (ain.getType().getElement().getVectorSize() != vecSize) {
		throw new RSIllegalArgumentException("Vector sizes must match.");
		}
		if (ain.getType().getElement().isCompatible(Element.U8(mRS)) &&
		ain.getType().getElement().isCompatible(Element.U8_4(mRS))) {
		throw new RSIllegalArgumentException("Output type must be U32 or I32.");
		}

		forEach(0, ain, null, null);
		}

		public void setDotCoefficients(float r, float g, float b, float a) {
		if ((r < 0.f) \|\| (g < 0.f) \|\| (b < 0.f) \|\| (a < 0.f)) {
		throw new RSIllegalArgumentException("Coefficient may not be negative.");
		}
		if ((r + g + b + a) > 1.f) {
		throw new RSIllegalArgumentException("Sum of coefficients must be 1.0 or less.");
		}

		FieldPacker fp = new FieldPacker(16);
		fp.addF32(r);
		fp.addF32(g);
		fp.addF32(b);
		fp.addF32(a);
		setVar(0, fp);
		}

		/**
		* Set the output of the histogram.
		*
		* @param ain The input allocation
		*/
		public void setOutput(Allocation aout) {
		mOut = aout;
		if (mOut.getType().getElement() != Element.U32(mRS) &&
		mOut.getType().getElement() != Element.U32_3(mRS) &&
		mOut.getType().getElement() != Element.U32_4(mRS) &&
		mOut.getType().getElement() != Element.I32(mRS) &&
		mOut.getType().getElement() != Element.I32_3(mRS) &&
		mOut.getType().getElement() != Element.I32_4(mRS)) {

		throw new RSIllegalArgumentException("Output type must be U32 or I32.");
		}
		if ((mOut.getType().getX() != 256) \|\|
		(mOut.getType().getY() != 0) \|\|
		mOut.getType().hasMipmaps() \|\|
		(mOut.getType().getYuv() != 0)) {

		throw new RSIllegalArgumentException("Output must be 1D, 256 elements.");
		}
		setVar(1, aout);
		}

		public void forEach_dot(Allocation ain) {
		if (mOut.getType().getElement().getVectorSize() != 1) {
		throw new RSIllegalArgumentException("Output vector size must be one.");
		}
		if (ain.getType().getElement().isCompatible(Element.U8(mRS)) &&
		ain.getType().getElement().isCompatible(Element.U8_4(mRS))) {
		throw new RSIllegalArgumentException("Output type must be U32 or I32.");
		}

		forEach(1, ain, null, null);
		}



		/**
		* Get a KernelID for this intrinsic kernel.
		*
		* @return Script.KernelID The KernelID object.
		*/
		public Script.KernelID getKernelID_seperate() {
		return createKernelID(0, 3, null, null);
		}

		/**
		* Get a FieldID for the input field of this intrinsic.
		*
		* @return Script.FieldID The FieldID object.
		*/
		public Script.FieldID getFieldID_Input() {
		return createFieldID(1, null);
		}
		}