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 memcpy(mHal.state.constants[0]->getPtr(), mConstantColor, 4*sizeof(float));
57 mDirty = true;
58 }
59
setup(Context * rsc,ProgramFragmentState * state)60 void 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
serialize(OStream * stream) const77 void ProgramFragment::serialize(OStream *stream) const {
78 }
79
createFromStream(Context * rsc,IStream * stream)80 ProgramFragment *ProgramFragment::createFromStream(Context *rsc, IStream *stream) {
81 return NULL;
82 }
83
ProgramFragmentState()84 ProgramFragmentState::ProgramFragmentState() {
85 mPF = NULL;
86 }
87
~ProgramFragmentState()88 ProgramFragmentState::~ProgramFragmentState() {
89 ObjectBase::checkDelete(mPF);
90 mPF = NULL;
91 }
92
init(Context * rsc)93 void 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
deinit(Context * rsc)123 void ProgramFragmentState::deinit(Context *rsc) {
124 mDefault.clear();
125 mLast.clear();
126 }
127
128 namespace android {
129 namespace renderscript {
130
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)131 RsProgramFragment 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