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,size_t shaderLength,const char ** textureNames,size_t textureNamesCount,const size_t * textureNamesLength,const uint32_t * params,size_t paramLength)23 ProgramFragment::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
~ProgramFragment()37 ProgramFragment::~ProgramFragment() {
38 mRSC->mHal.funcs.fragment.destroy(mRSC, this);
39 }
40
setConstantColor(Context * rsc,float r,float g,float b,float a)41 void 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 void *p = rsc->mHal.funcs.allocation.lock1D(rsc, mHal.state.constants[0]);
57 memcpy(p, mConstantColor, 4*sizeof(float));
58 mDirty = true;
59 rsc->mHal.funcs.allocation.unlock1D(rsc, mHal.state.constants[0]);
60 }
61
setup(Context * rsc,ProgramFragmentState * state)62 void ProgramFragment::setup(Context *rsc, ProgramFragmentState *state) {
63 if ((state->mLast.get() == this) && !mDirty) {
64 return;
65 }
66 state->mLast.set(this);
67
68 for (uint32_t ct=0; ct < mHal.state.texturesCount; ct++) {
69 if (!mHal.state.textures[ct]) {
70 ALOGE("No texture bound for shader id %u, texture unit %u", (uint)this, ct);
71 rsc->setError(RS_ERROR_BAD_SHADER, "No texture bound");
72 continue;
73 }
74 }
75
76 rsc->mHal.funcs.fragment.setActive(rsc, this);
77 }
78
serialize(Context * rsc,OStream * stream) const79 void ProgramFragment::serialize(Context *rsc, OStream *stream) const {
80 }
81
createFromStream(Context * rsc,IStream * stream)82 ProgramFragment *ProgramFragment::createFromStream(Context *rsc, IStream *stream) {
83 return NULL;
84 }
85
ProgramFragmentState()86 ProgramFragmentState::ProgramFragmentState() {
87 mPF = NULL;
88 }
89
~ProgramFragmentState()90 ProgramFragmentState::~ProgramFragmentState() {
91 ObjectBase::checkDelete(mPF);
92 mPF = NULL;
93 }
94
init(Context * rsc)95 void ProgramFragmentState::init(Context *rsc) {
96 String8 shaderString(RS_SHADER_INTERNAL);
97 shaderString.append("varying lowp vec4 varColor;\n");
98 shaderString.append("varying vec2 varTex0;\n");
99 shaderString.append("void main() {\n");
100 shaderString.append(" lowp vec4 col = UNI_Color;\n");
101 shaderString.append(" gl_FragColor = col;\n");
102 shaderString.append("}\n");
103
104 ObjectBaseRef<const Element> colorElem = Element::createRef(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 4);
105 Element::Builder builder;
106 builder.add(colorElem.get(), "Color", 1);
107 ObjectBaseRef<const Element> constInput = builder.create(rsc);
108
109 ObjectBaseRef<Type> inputType = Type::getTypeRef(rsc, constInput.get(), 1, 0, 0, false, false);
110
111 uint32_t tmp[2];
112 tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
113 tmp[1] = (uint32_t)inputType.get();
114
115 Allocation *constAlloc = Allocation::createAllocation(rsc, inputType.get(),
116 RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_CONSTANTS);
117 ProgramFragment *pf = new ProgramFragment(rsc, shaderString.string(), shaderString.length(),
118 NULL, 0, NULL, tmp, 2);
119 pf->bindAllocation(rsc, constAlloc, 0);
120 pf->setConstantColor(rsc, 1.0f, 1.0f, 1.0f, 1.0f);
121
122 mDefault.set(pf);
123 }
124
deinit(Context * rsc)125 void ProgramFragmentState::deinit(Context *rsc) {
126 mDefault.clear();
127 mLast.clear();
128 }
129
130 namespace android {
131 namespace renderscript {
132
rsi_ProgramFragmentCreate(Context * rsc,const char * shaderText,size_t shaderLength,const char ** textureNames,size_t textureNamesCount,const size_t * textureNamesLength,const uint32_t * params,size_t paramLength)133 RsProgramFragment rsi_ProgramFragmentCreate(Context *rsc, const char * shaderText,
134 size_t shaderLength,
135 const char** textureNames,
136 size_t textureNamesCount,
137 const size_t *textureNamesLength,
138 const uint32_t * params, size_t paramLength) {
139 ProgramFragment *pf = new ProgramFragment(rsc, shaderText, shaderLength,
140 textureNames, textureNamesCount, textureNamesLength,
141 params, paramLength);
142 pf->incUserRef();
143 //ALOGE("rsi_ProgramFragmentCreate %p", pf);
144 return pf;
145 }
146
147 }
148 }
149
150