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 20 import android.util.Log; 21 22 23 /** 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 public class ProgramFragment extends Program { 41 ProgramFragment(int id, RenderScript rs) { 42 super(id, rs); 43 } 44 45 /** 46 * @deprecated in API 16 47 */ 48 public static class Builder extends BaseProgramBuilder { 49 /** 50 * @deprecated in API 16 51 * Create a builder object. 52 * 53 * @param rs Context to which the program will belong. 54 */ 55 public Builder(RenderScript rs) { 56 super(rs); 57 } 58 59 /** 60 * @deprecated in API 16 61 * Creates ProgramFragment from the current state of the builder 62 * 63 * @return ProgramFragment 64 */ 65 public ProgramFragment create() { 66 mRS.validate(); 67 int[] tmp = new int[(mInputCount + mOutputCount + mConstantCount + mTextureCount) * 2]; 68 String[] texNames = new String[mTextureCount]; 69 int idx = 0; 70 71 for (int i=0; i < mInputCount; i++) { 72 tmp[idx++] = ProgramParam.INPUT.mID; 73 tmp[idx++] = mInputs[i].getID(mRS); 74 } 75 for (int i=0; i < mOutputCount; i++) { 76 tmp[idx++] = ProgramParam.OUTPUT.mID; 77 tmp[idx++] = mOutputs[i].getID(mRS); 78 } 79 for (int i=0; i < mConstantCount; i++) { 80 tmp[idx++] = ProgramParam.CONSTANT.mID; 81 tmp[idx++] = mConstants[i].getID(mRS); 82 } 83 for (int i=0; i < mTextureCount; i++) { 84 tmp[idx++] = ProgramParam.TEXTURE_TYPE.mID; 85 tmp[idx++] = mTextureTypes[i].mID; 86 texNames[i] = mTextureNames[i]; 87 } 88 89 int id = mRS.nProgramFragmentCreate(mShader, texNames, tmp); 90 ProgramFragment pf = new ProgramFragment(id, mRS); 91 initProgram(pf); 92 return pf; 93 } 94 } 95 } 96 97 98 99
