1 /*
2  * Copyright (C) 2011 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 "rsProgram.h"
19 
20 #include <inttypes.h>
21 
22 namespace android {
23 namespace renderscript {
24 
Program(Context * rsc,const char * shaderText,size_t shaderLength,const uintptr_t * params,size_t paramLength)25 Program::Program(Context *rsc, const char * shaderText, size_t shaderLength,
26                  const uintptr_t * params, size_t paramLength)
27     : ProgramBase(rsc) {
28 
29     initMemberVars();
30     for (uint32_t ct=0; ct < paramLength; ct+=2) {
31         if (params[ct] == RS_PROGRAM_PARAM_INPUT) {
32             mHal.state.inputElementsCount++;
33         }
34         if (params[ct] == RS_PROGRAM_PARAM_CONSTANT) {
35             mHal.state.constantsCount++;
36         }
37         if (params[ct] == RS_PROGRAM_PARAM_TEXTURE_TYPE) {
38             mHal.state.texturesCount++;
39         }
40     }
41 
42     mTextures = new ObjectBaseRef<Allocation>[mHal.state.texturesCount];
43     mSamplers = new ObjectBaseRef<Sampler>[mHal.state.texturesCount];
44     mInputElements = new ObjectBaseRef<Element>[mHal.state.inputElementsCount];
45     mConstantTypes = new ObjectBaseRef<Type>[mHal.state.constantsCount];
46     mConstants = new ObjectBaseRef<Allocation>[mHal.state.constantsCount];
47 
48     mHal.state.textures = new Allocation*[mHal.state.texturesCount];
49     mHal.state.samplers = new Sampler*[mHal.state.texturesCount];
50     mHal.state.textureTargets = new RsTextureTarget[mHal.state.texturesCount];
51     mHal.state.inputElements = new Element*[mHal.state.inputElementsCount];
52     mHal.state.constantTypes = new Type*[mHal.state.constantsCount];
53     mHal.state.constants = new Allocation*[mHal.state.constantsCount];
54 
55     // Will initialize everything
56     freeChildren();
57 
58     uint32_t input = 0;
59     uint32_t constant = 0;
60     uint32_t texture = 0;
61     for (uint32_t ct=0; ct < paramLength; ct+=2) {
62         if (params[ct] == RS_PROGRAM_PARAM_INPUT) {
63             mInputElements[input].set(reinterpret_cast<Element *>(params[ct+1]));
64             mHal.state.inputElements[input++] = reinterpret_cast<Element *>(params[ct+1]);
65         }
66         if (params[ct] == RS_PROGRAM_PARAM_CONSTANT) {
67             mConstantTypes[constant].set(reinterpret_cast<Type *>(params[ct+1]));
68             mHal.state.constantTypes[constant++] = reinterpret_cast<Type *>(params[ct+1]);
69         }
70         if (params[ct] == RS_PROGRAM_PARAM_TEXTURE_TYPE) {
71             mHal.state.textureTargets[texture++] = (RsTextureTarget)params[ct+1];
72         }
73     }
74     mIsInternal = false;
75     uint32_t internalTokenLen = strlen(RS_SHADER_INTERNAL);
76     if (shaderLength > internalTokenLen &&
77        strncmp(RS_SHADER_INTERNAL, shaderText, internalTokenLen) == 0) {
78         mIsInternal = true;
79         shaderText += internalTokenLen;
80         shaderLength -= internalTokenLen;
81     }
82 
83     mUserShader = rsuCopyString(shaderText, shaderLength);
84     mUserShaderLen = shaderLength;
85 }
86 
~Program()87 Program::~Program() {
88     freeChildren();
89 
90     delete[] mTextures;
91     delete[] mSamplers;
92     delete[] mInputElements;
93     delete[] mConstantTypes;
94     delete[] mConstants;
95 
96     delete[] mHal.state.textures;
97     delete[] mHal.state.samplers;
98     delete[] mHal.state.textureTargets;
99     delete[] mHal.state.inputElements;
100     delete[] mHal.state.constantTypes;
101     delete[] mHal.state.constants;
102     mHal.state.inputElementsCount = 0;
103     mHal.state.constantsCount = 0;
104     mHal.state.texturesCount = 0;
105 
106     if (mUserShader != nullptr) {
107         delete[] mUserShader;
108         mUserShader = nullptr;
109     }
110     mUserShaderLen = 0;
111 }
112 
freeChildren()113 bool Program::freeChildren() {
114     for (uint32_t ct=0; ct < mHal.state.constantsCount; ct++) {
115         bindAllocation(nullptr, nullptr, ct);
116     }
117 
118     for (uint32_t ct=0; ct < mHal.state.texturesCount; ct++) {
119         bindTexture(nullptr, ct, nullptr);
120         bindSampler(nullptr, ct, nullptr);
121     }
122     return false;
123 }
124 
initMemberVars()125 void Program::initMemberVars() {
126     mDirty = true;
127 
128     mHal.drv = nullptr;
129     mHal.state.textures = nullptr;
130     mHal.state.samplers = nullptr;
131     mHal.state.textureTargets = nullptr;
132     mHal.state.inputElements = nullptr;
133     mHal.state.constantTypes = nullptr;
134     mHal.state.constants = nullptr;
135 
136     mHal.state.inputElementsCount = 0;
137     mHal.state.constantsCount = 0;
138     mHal.state.texturesCount = 0;
139 
140     mTextures = nullptr;
141     mSamplers = nullptr;
142     mInputElements = nullptr;
143     mConstantTypes = nullptr;
144     mConstants = nullptr;
145 
146     mIsInternal = false;
147 
148     mUserShader = nullptr;
149     mUserShaderLen = 0;
150 }
151 
bindAllocation(Context * rsc,Allocation * alloc,uint32_t slot)152 void Program::bindAllocation(Context *rsc, Allocation *alloc, uint32_t slot) {
153     if (alloc != nullptr) {
154         if (slot >= mHal.state.constantsCount) {
155             ALOGE("Attempt to bind alloc at slot %u, on shader id %" PRIuPTR ", but const count is %u",
156                  slot, (uintptr_t)this, mHal.state.constantsCount);
157             rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind allocation");
158             return;
159         }
160         if (alloc->getType() != mConstantTypes[slot].get()) {
161             ALOGE("Attempt to bind alloc at slot %u, on shader id %" PRIuPTR ", but types mismatch",
162                  slot, (uintptr_t)this);
163             rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind allocation");
164             return;
165         }
166     }
167     if (mConstants[slot].get() == alloc) {
168         return;
169     }
170     if (mConstants[slot].get()) {
171         mConstants[slot]->removeProgramToDirty(this);
172     }
173     mConstants[slot].set(alloc);
174     mHal.state.constants[slot] = alloc;
175     if (alloc) {
176         alloc->addProgramToDirty(this);
177     }
178     mDirty = true;
179 }
180 
bindTexture(Context * rsc,uint32_t slot,Allocation * a)181 void Program::bindTexture(Context *rsc, uint32_t slot, Allocation *a) {
182     if (slot >= mHal.state.texturesCount) {
183         ALOGE("Attempt to bind texture to slot %u but tex count is %u", slot, mHal.state.texturesCount);
184         rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind texture");
185         return;
186     }
187 
188     if (a && a->getType()->getDimFaces() && mHal.state.textureTargets[slot] != RS_TEXTURE_CUBE) {
189         ALOGE("Attempt to bind cubemap to slot %u but 2d texture needed", slot);
190         rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind cubemap to 2d texture slot");
191         return;
192     }
193 
194     mTextures[slot].set(a);
195     mHal.state.textures[slot] = a;
196 
197     mDirty = true;
198 }
199 
bindSampler(Context * rsc,uint32_t slot,Sampler * s)200 void Program::bindSampler(Context *rsc, uint32_t slot, Sampler *s) {
201     if (slot >= mHal.state.texturesCount) {
202         ALOGE("Attempt to bind sampler to slot %u but tex count is %u", slot, mHal.state.texturesCount);
203         rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind sampler");
204         return;
205     }
206 
207     mSamplers[slot].set(s);
208     mHal.state.samplers[slot] = s;
209     mDirty = true;
210 }
211 
rsi_ProgramBindConstants(Context * rsc,RsProgram vp,uint32_t slot,RsAllocation constants)212 void rsi_ProgramBindConstants(Context *rsc, RsProgram vp, uint32_t slot, RsAllocation constants) {
213     Program *p = static_cast<Program *>(vp);
214     p->bindAllocation(rsc, static_cast<Allocation *>(constants), slot);
215 }
216 
rsi_ProgramBindTexture(Context * rsc,RsProgram vpf,uint32_t slot,RsAllocation a)217 void rsi_ProgramBindTexture(Context *rsc, RsProgram vpf, uint32_t slot, RsAllocation a) {
218     Program *p = static_cast<Program *>(vpf);
219     p->bindTexture(rsc, slot, static_cast<Allocation *>(a));
220 }
221 
rsi_ProgramBindSampler(Context * rsc,RsProgram vpf,uint32_t slot,RsSampler s)222 void rsi_ProgramBindSampler(Context *rsc, RsProgram vpf, uint32_t slot, RsSampler s) {
223     Program *p = static_cast<Program *>(vpf);
224     p->bindSampler(rsc, slot, static_cast<Sampler *>(s));
225 }
226 
227 } // namespace renderscript
228 } // namespace android
229