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
20 using namespace android;
21 using namespace android::renderscript;
22
ProgramFragment(Context * rsc,const char * shaderText,uint32_t shaderLength,const uint32_t * params,uint32_t paramLength)23 ProgramFragment::ProgramFragment(Context *rsc, const char * shaderText,
24 uint32_t shaderLength, const uint32_t * params,
25 uint32_t paramLength)
26 : Program(rsc, shaderText, shaderLength, params, paramLength) {
27 mConstantColor[0] = 1.f;
28 mConstantColor[1] = 1.f;
29 mConstantColor[2] = 1.f;
30 mConstantColor[3] = 1.f;
31
32 mRSC->mHal.funcs.fragment.init(mRSC, this, mUserShader.string(), mUserShader.length());
33 }
34
~ProgramFragment()35 ProgramFragment::~ProgramFragment() {
36 mRSC->mHal.funcs.fragment.destroy(mRSC, this);
37 }
38
setConstantColor(Context * rsc,float r,float g,float b,float a)39 void ProgramFragment::setConstantColor(Context *rsc, float r, float g, float b, float a) {
40 if (isUserProgram()) {
41 LOGE("Attempting to set fixed function emulation color on user program");
42 rsc->setError(RS_ERROR_BAD_SHADER, "Cannot set fixed function emulation color on user program");
43 return;
44 }
45 if (mHal.state.constants[0].get() == NULL) {
46 LOGE("Unable to set fixed function emulation color because allocation is missing");
47 rsc->setError(RS_ERROR_BAD_SHADER, "Unable to set fixed function emulation color because allocation is missing");
48 return;
49 }
50 mConstantColor[0] = r;
51 mConstantColor[1] = g;
52 mConstantColor[2] = b;
53 mConstantColor[3] = a;
54 memcpy(mHal.state.constants[0]->getPtr(), mConstantColor, 4*sizeof(float));
55 mDirty = true;
56 }
57
setup(Context * rsc,ProgramFragmentState * state)58 void ProgramFragment::setup(Context *rsc, ProgramFragmentState *state) {
59 if ((state->mLast.get() == this) && !mDirty) {
60 return;
61 }
62 state->mLast.set(this);
63
64 for (uint32_t ct=0; ct < mHal.state.texturesCount; ct++) {
65 if (!mHal.state.textures[ct].get()) {
66 LOGE("No texture bound for shader id %u, texture unit %u", (uint)this, ct);
67 rsc->setError(RS_ERROR_BAD_SHADER, "No texture bound");
68 continue;
69 }
70 }
71
72 rsc->mHal.funcs.fragment.setActive(rsc, this);
73 }
74
serialize(OStream * stream) const75 void ProgramFragment::serialize(OStream *stream) const {
76 }
77
createFromStream(Context * rsc,IStream * stream)78 ProgramFragment *ProgramFragment::createFromStream(Context *rsc, IStream *stream) {
79 return NULL;
80 }
81
ProgramFragmentState()82 ProgramFragmentState::ProgramFragmentState() {
83 mPF = NULL;
84 }
85
~ProgramFragmentState()86 ProgramFragmentState::~ProgramFragmentState() {
87 ObjectBase::checkDelete(mPF);
88 mPF = NULL;
89 }
90
init(Context * rsc)91 void ProgramFragmentState::init(Context *rsc) {
92 String8 shaderString(RS_SHADER_INTERNAL);
93 shaderString.append("varying lowp vec4 varColor;\n");
94 shaderString.append("varying vec2 varTex0;\n");
95 shaderString.append("void main() {\n");
96 shaderString.append(" lowp vec4 col = UNI_Color;\n");
97 shaderString.append(" gl_FragColor = col;\n");
98 shaderString.append("}\n");
99
100 ObjectBaseRef<const Element> colorElem = Element::createRef(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 4);
101 Element::Builder builder;
102 builder.add(colorElem.get(), "Color", 1);
103 ObjectBaseRef<const Element> constInput = builder.create(rsc);
104
105 ObjectBaseRef<Type> inputType = Type::getTypeRef(rsc, constInput.get(), 1, 0, 0, false, false);
106
107 uint32_t tmp[2];
108 tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
109 tmp[1] = (uint32_t)inputType.get();
110
111 Allocation *constAlloc = Allocation::createAllocation(rsc, inputType.get(),
112 RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_CONSTANTS);
113 ProgramFragment *pf = new ProgramFragment(rsc, shaderString.string(),
114 shaderString.length(), tmp, 2);
115 pf->bindAllocation(rsc, constAlloc, 0);
116 pf->setConstantColor(rsc, 1.0f, 1.0f, 1.0f, 1.0f);
117
118 mDefault.set(pf);
119 }
120
deinit(Context * rsc)121 void ProgramFragmentState::deinit(Context *rsc) {
122 mDefault.clear();
123 mLast.clear();
124 }
125
126 namespace android {
127 namespace renderscript {
128
rsi_ProgramFragmentCreate(Context * rsc,const char * shaderText,size_t shaderLength,const uint32_t * params,size_t paramLength)129 RsProgramFragment rsi_ProgramFragmentCreate(Context *rsc, const char * shaderText,
130 size_t shaderLength, const uint32_t * params,
131 size_t paramLength) {
132 ProgramFragment *pf = new ProgramFragment(rsc, shaderText, shaderLength, params, paramLength);
133 pf->incUserRef();
134 //LOGE("rsi_ProgramFragmentCreate %p", pf);
135 return pf;
136 }
137
138 }
139 }
140
141