rsProgramFragment.cpp revision e3150cfb3edb028407669e4a65e087eae77e718c
1/* 2 * Copyright (C) 2009 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#include "rsContext.h" 18#include "rsProgramFragment.h" 19 20using namespace android; 21using namespace android::renderscript; 22 23ProgramFragment::ProgramFragment(Context *rsc, const char * shaderText, size_t shaderLength, 24 const char** textureNames, size_t textureNamesCount, const size_t *textureNamesLength, 25 26 const uint32_t * params, size_t paramLength) 27 : Program(rsc, shaderText, shaderLength, params, paramLength) { 28 mConstantColor[0] = 1.f; 29 mConstantColor[1] = 1.f; 30 mConstantColor[2] = 1.f; 31 mConstantColor[3] = 1.f; 32 33 mRSC->mHal.funcs.fragment.init(mRSC, this, mUserShader.string(), mUserShader.length(), 34 textureNames, textureNamesCount, textureNamesLength); 35} 36 37ProgramFragment::~ProgramFragment() { 38 mRSC->mHal.funcs.fragment.destroy(mRSC, this); 39} 40 41void ProgramFragment::setConstantColor(Context *rsc, float r, float g, float b, float a) { 42 if (isUserProgram()) { 43 ALOGE("Attempting to set fixed function emulation color on user program"); 44 rsc->setError(RS_ERROR_BAD_SHADER, "Cannot set fixed function emulation color on user program"); 45 return; 46 } 47 if (mHal.state.constants[0] == NULL) { 48 ALOGE("Unable to set fixed function emulation color because allocation is missing"); 49 rsc->setError(RS_ERROR_BAD_SHADER, "Unable to set fixed function emulation color because allocation is missing"); 50 return; 51 } 52 mConstantColor[0] = r; 53 mConstantColor[1] = g; 54 mConstantColor[2] = b; 55 mConstantColor[3] = a; 56 memcpy(mHal.state.constants[0]->getPtr(), mConstantColor, 4*sizeof(float)); 57 mDirty = true; 58} 59 60void ProgramFragment::setup(Context *rsc, ProgramFragmentState *state) { 61 if ((state->mLast.get() == this) && !mDirty) { 62 return; 63 } 64 state->mLast.set(this); 65 66 for (uint32_t ct=0; ct < mHal.state.texturesCount; ct++) { 67 if (!mHal.state.textures[ct]) { 68 ALOGE("No texture bound for shader id %u, texture unit %u", (uint)this, ct); 69 rsc->setError(RS_ERROR_BAD_SHADER, "No texture bound"); 70 continue; 71 } 72 } 73 74 rsc->mHal.funcs.fragment.setActive(rsc, this); 75} 76 77void ProgramFragment::serialize(Context *rsc, OStream *stream) const { 78} 79 80ProgramFragment *ProgramFragment::createFromStream(Context *rsc, IStream *stream) { 81 return NULL; 82} 83 84ProgramFragmentState::ProgramFragmentState() { 85 mPF = NULL; 86} 87 88ProgramFragmentState::~ProgramFragmentState() { 89 ObjectBase::checkDelete(mPF); 90 mPF = NULL; 91} 92 93void ProgramFragmentState::init(Context *rsc) { 94 String8 shaderString(RS_SHADER_INTERNAL); 95 shaderString.append("varying lowp vec4 varColor;\n"); 96 shaderString.append("varying vec2 varTex0;\n"); 97 shaderString.append("void main() {\n"); 98 shaderString.append(" lowp vec4 col = UNI_Color;\n"); 99 shaderString.append(" gl_FragColor = col;\n"); 100 shaderString.append("}\n"); 101 102 ObjectBaseRef<const Element> colorElem = Element::createRef(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 4); 103 Element::Builder builder; 104 builder.add(colorElem.get(), "Color", 1); 105 ObjectBaseRef<const Element> constInput = builder.create(rsc); 106 107 ObjectBaseRef<Type> inputType = Type::getTypeRef(rsc, constInput.get(), 1, 0, 0, false, false); 108 109 uint32_t tmp[2]; 110 tmp[0] = RS_PROGRAM_PARAM_CONSTANT; 111 tmp[1] = (uint32_t)inputType.get(); 112 113 Allocation *constAlloc = Allocation::createAllocation(rsc, inputType.get(), 114 RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_CONSTANTS); 115 ProgramFragment *pf = new ProgramFragment(rsc, shaderString.string(), shaderString.length(), 116 NULL, 0, NULL, tmp, 2); 117 pf->bindAllocation(rsc, constAlloc, 0); 118 pf->setConstantColor(rsc, 1.0f, 1.0f, 1.0f, 1.0f); 119 120 mDefault.set(pf); 121} 122 123void ProgramFragmentState::deinit(Context *rsc) { 124 mDefault.clear(); 125 mLast.clear(); 126} 127 128namespace android { 129namespace renderscript { 130 131RsProgramFragment rsi_ProgramFragmentCreate(Context *rsc, const char * shaderText, 132 size_t shaderLength, 133 const char** textureNames, 134 size_t textureNamesCount, 135 const size_t *textureNamesLength, 136 const uint32_t * params, size_t paramLength) { 137 ProgramFragment *pf = new ProgramFragment(rsc, shaderText, shaderLength, 138 textureNames, textureNamesCount, textureNamesLength, 139 params, paramLength); 140 pf->incUserRef(); 141 //ALOGE("rsi_ProgramFragmentCreate %p", pf); 142 return pf; 143} 144 145} 146} 147 148