1 /* 2 * Copyright (C) 2008 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 19 import android.compat.annotation.UnsupportedAppUsage; 20 21 22 /** 23 * @hide 24 * @deprecated in API 16 25 * <p>The RenderScript fragment program, also known as fragment shader is responsible 26 * for manipulating pixel data in a user defined way. It's constructed from a GLSL 27 * shader string containing the program body, textures inputs, and a Type object 28 * that describes the constants used by the program. Similar to the vertex programs, 29 * when an allocation with constant input values is bound to the shader, its values 30 * are sent to the graphics program automatically.</p> 31 * <p> The values inside the allocation are not explicitly tracked. If they change between two draw 32 * calls using the same program object, the runtime needs to be notified of that 33 * change by calling rsgAllocationSyncAll so it could send the new values to hardware. 34 * Communication between the vertex and fragment programs is handled internally in the 35 * GLSL code. For example, if the fragment program is expecting a varying input called 36 * varTex0, the GLSL code inside the program vertex must provide it. 37 * </p> 38 * 39 **/ 40 @Deprecated 41 public class ProgramFragment extends Program { ProgramFragment(long id, RenderScript rs)42 ProgramFragment(long id, RenderScript rs) { 43 super(id, rs); 44 } 45 46 /** 47 * @deprecated in API 16 48 */ 49 public static class Builder extends BaseProgramBuilder { 50 /** 51 * @deprecated in API 16 52 * Create a builder object. 53 * 54 * @param rs Context to which the program will belong. 55 */ 56 @UnsupportedAppUsage Builder(RenderScript rs)57 public Builder(RenderScript rs) { 58 super(rs); 59 } 60 61 /** 62 * @deprecated in API 16 63 * Creates ProgramFragment from the current state of the builder 64 * 65 * @return ProgramFragment 66 */ 67 @UnsupportedAppUsage create()68 public ProgramFragment create() { 69 mRS.validate(); 70 long[] tmp = new long[(mInputCount + mOutputCount + mConstantCount + mTextureCount) * 2]; 71 String[] texNames = new String[mTextureCount]; 72 int idx = 0; 73 74 for (int i=0; i < mInputCount; i++) { 75 tmp[idx++] = ProgramParam.INPUT.mID; 76 tmp[idx++] = mInputs[i].getID(mRS); 77 } 78 for (int i=0; i < mOutputCount; i++) { 79 tmp[idx++] = ProgramParam.OUTPUT.mID; 80 tmp[idx++] = mOutputs[i].getID(mRS); 81 } 82 for (int i=0; i < mConstantCount; i++) { 83 tmp[idx++] = ProgramParam.CONSTANT.mID; 84 tmp[idx++] = mConstants[i].getID(mRS); 85 } 86 for (int i=0; i < mTextureCount; i++) { 87 tmp[idx++] = ProgramParam.TEXTURE_TYPE.mID; 88 tmp[idx++] = mTextureTypes[i].mID; 89 texNames[i] = mTextureNames[i]; 90 } 91 92 long id = mRS.nProgramFragmentCreate(mShader, texNames, tmp); 93 ProgramFragment pf = new ProgramFragment(id, mRS); 94 initProgram(pf); 95 return pf; 96 } 97 } 98 } 99 100 101 102