1/*
2 * Copyright 2012, 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//===----------------------------------------------------------------------===//
18// This file implements RSInfo::write()
19//===----------------------------------------------------------------------===//
20
21#include "bcc/Renderscript/RSInfo.h"
22
23#include "bcc/Support/Log.h"
24#include "bcc/Support/OutputFile.h"
25
26using namespace bcc;
27
28namespace {
29
30template<typename ItemType, typename ItemContainer> inline bool
31helper_adapt_list_item(ItemType &pResult, const RSInfo &pInfo,
32                       const typename ItemContainer::const_iterator &pItem);
33
34
35template<> inline bool
36helper_adapt_list_item<rsinfo::PragmaItem, RSInfo::PragmaListTy>(
37    rsinfo::PragmaItem &pResult,
38    const RSInfo &pInfo,
39    const RSInfo::PragmaListTy::const_iterator &pItem) {
40  pResult.key = pInfo.getStringIdxInPool(pItem->first);
41  pResult.value = pInfo.getStringIdxInPool(pItem->second);
42
43  if (pResult.key == rsinfo::gInvalidStringIndex) {
44    ALOGE("RS pragma list contains invalid string '%s' for key.", pItem->first);
45    return false;
46  }
47
48  if (pResult.value == rsinfo::gInvalidStringIndex) {
49    ALOGE("RS pragma list contains invalid string '%s' for value.",
50          pItem->second);
51    return false;
52  }
53
54  return true;
55}
56
57template<> inline bool
58helper_adapt_list_item<rsinfo::ObjectSlotItem, RSInfo::ObjectSlotListTy>(
59    rsinfo::ObjectSlotItem &pResult,
60    const RSInfo &pInfo,
61    const RSInfo::ObjectSlotListTy::const_iterator &pItem) {
62  pResult.slot = *pItem;
63  return true;
64}
65
66template<> inline bool
67helper_adapt_list_item<rsinfo::ExportVarNameItem, RSInfo::ExportVarNameListTy>(
68    rsinfo::ExportVarNameItem &pResult,
69    const RSInfo &pInfo,
70    const RSInfo::ExportVarNameListTy::const_iterator &pItem) {
71  pResult.name = pInfo.getStringIdxInPool(*pItem);
72
73  if (pResult.name == rsinfo::gInvalidStringIndex) {
74    ALOGE("RS export vars contains invalid string '%s' for name.", *pItem);
75    return false;
76  }
77
78  return true;
79}
80
81template<> inline bool
82helper_adapt_list_item<rsinfo::ExportFuncNameItem,
83                       RSInfo::ExportFuncNameListTy>(
84    rsinfo::ExportFuncNameItem &pResult,
85    const RSInfo &pInfo,
86    const RSInfo::ExportFuncNameListTy::const_iterator &pItem) {
87  pResult.name = pInfo.getStringIdxInPool(*pItem);
88
89  if (pResult.name == rsinfo::gInvalidStringIndex) {
90    ALOGE("RS export funcs contains invalid string '%s' for name.", *pItem);
91    return false;
92  }
93
94  return true;
95}
96
97template<> inline bool
98helper_adapt_list_item<rsinfo::ExportForeachFuncItem,
99                       RSInfo::ExportForeachFuncListTy>(
100    rsinfo::ExportForeachFuncItem &pResult,
101    const RSInfo &pInfo,
102    const RSInfo::ExportForeachFuncListTy::const_iterator &pItem) {
103  pResult.name = pInfo.getStringIdxInPool(pItem->first);
104  pResult.signature = pItem->second;
105
106  if (pResult.name == rsinfo::gInvalidStringIndex) {
107    ALOGE("RS export foreach contains invalid string '%s' for name.",
108          pItem->first);
109    return false;
110  }
111
112  return true;
113}
114
115template<typename ItemType, typename ItemContainer>
116inline bool helper_write_list(OutputFile &pOutput,
117                              const RSInfo &pInfo,
118                              const rsinfo::ListHeader &pHeader,
119                              ItemContainer &pList) {
120  ItemType item;
121
122  for (typename ItemContainer::const_iterator item_iter = pList.begin(),
123          item_end = pList.end(); item_iter != item_end; item_iter++) {
124    // Convert each entry in the pList to ItemType.
125    if (!helper_adapt_list_item<ItemType, ItemContainer>(item,
126                                                         pInfo,
127                                                         item_iter)) {
128      return false;
129    }
130    // And write out an item.
131    if (pOutput.write(&item, sizeof(item)) != sizeof(item)) {
132      ALOGE("Cannot write out item of %s for RSInfo file %s! (%s)",
133            rsinfo::GetItemTypeName<ItemType>(), pOutput.getName().c_str(),
134            pOutput.getErrorMessage().c_str());
135      return false;
136    }
137  }
138
139  return true;
140}
141
142} // end anonymous namespace
143
144bool RSInfo::write(OutputFile &pOutput) {
145  off_t initial_offset = pOutput.tell();
146  const char *output_filename = pOutput.getName().c_str();
147
148  if (pOutput.hasError()) {
149    ALOGE("Invalid RS info file %s for output! (%s)",
150          output_filename, pOutput.getErrorMessage().c_str());
151    return false;
152  }
153
154  // Layout.
155  if (!layout(initial_offset)) {
156    return false;
157  }
158
159  // Write header.
160  if (pOutput.write(&mHeader, sizeof(mHeader)) != sizeof(mHeader)) {
161    ALOGE("Cannot write out the header for RSInfo file %s! (%s)",
162          output_filename, pOutput.getErrorMessage().c_str());
163    return false;
164  }
165
166  // Write string pool.
167  if (static_cast<size_t>(pOutput.write(mStringPool, mHeader.strPoolSize))
168          != mHeader.strPoolSize) {
169    ALOGE("Cannot write out the string pool for RSInfo file %s! (%s)",
170          output_filename, pOutput.getErrorMessage().c_str());
171    return false;
172  }
173
174  // Write pragmaList.
175  if (!helper_write_list<rsinfo::PragmaItem, PragmaListTy>
176        (pOutput, *this, mHeader.pragmaList, mPragmas)) {
177    return false;
178  }
179
180  // Write objectSlotList.
181  if (!helper_write_list<rsinfo::ObjectSlotItem, ObjectSlotListTy>
182        (pOutput, *this, mHeader.objectSlotList, mObjectSlots)) {
183    return false;
184  }
185
186  // Write exportVarNameList.
187  if (!helper_write_list<rsinfo::ExportVarNameItem, ExportVarNameListTy>
188        (pOutput, *this, mHeader.exportVarNameList, mExportVarNames)) {
189    return false;
190  }
191
192  // Write exportFuncNameList.
193  if (!helper_write_list<rsinfo::ExportFuncNameItem, ExportFuncNameListTy>
194        (pOutput, *this, mHeader.exportFuncNameList, mExportFuncNames)) {
195    return false;
196  }
197
198  // Write exportForeachFuncList.
199  if (!helper_write_list<rsinfo::ExportForeachFuncItem, ExportForeachFuncListTy>
200        (pOutput, *this, mHeader.exportForeachFuncList, mExportForeachFuncs)) {
201    return false;
202  }
203
204  return true;
205}
206