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      1 /*
      2  * Copyright (C) 2013 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 #ifndef VENDOR_TAGS_H_
     18 #define VENDOR_TAGS_H_
     19 
     20 #include <hardware/camera_common.h>
     21 #include <system/camera_metadata.h>
     22 
     23 namespace default_camera_hal {
     24 
     25 // VendorTags contains all vendor-specific metadata tag functionality
     26 class VendorTags {
     27     public:
     28         VendorTags();
     29         ~VendorTags();
     30 
     31         // Vendor Tags Operations (see <hardware/camera_common.h>)
     32         int getTagCount(const vendor_tag_ops_t* ops);
     33         void getAllTags(const vendor_tag_ops_t* ops, uint32_t* tag_array);
     34         const char* getSectionName(const vendor_tag_ops_t* ops, uint32_t tag);
     35         const char* getTagName(const vendor_tag_ops_t* ops, uint32_t tag);
     36         int getTagType(const vendor_tag_ops_t* ops, uint32_t tag);
     37 
     38     private:
     39         // Total number of vendor tags
     40         int mTagCount;
     41 };
     42 
     43 // Tag sections start at the beginning of vendor tags (0x8000_0000)
     44 // See <system/camera_metadata.h>
     45 enum {
     46     DEMO_WIZARDRY,
     47     DEMO_SORCERY,
     48     DEMO_MAGIC,
     49     DEMO_SECTION_COUNT
     50 };
     51 
     52 const uint32_t vendor_section_start = VENDOR_SECTION_START;
     53 
     54 // Each section starts at increments of 0x1_0000
     55 const uint32_t demo_wizardry_start = (DEMO_WIZARDRY + VENDOR_SECTION) << 16;
     56 const uint32_t demo_sorcery_start  = (DEMO_SORCERY  + VENDOR_SECTION) << 16;
     57 const uint32_t demo_magic_start    = (DEMO_MAGIC    + VENDOR_SECTION) << 16;
     58 
     59 // Vendor Tag values, start value begins each section
     60 const uint32_t demo_wizardry_dimension_size = demo_wizardry_start;
     61 const uint32_t demo_wizardry_dimensions = demo_wizardry_start + 1;
     62 const uint32_t demo_wizardry_familiar = demo_wizardry_start + 2;
     63 const uint32_t demo_wizardry_fire = demo_wizardry_start + 3;
     64 const uint32_t demo_wizardry_end = demo_wizardry_start + 4;
     65 
     66 const uint32_t demo_sorcery_difficulty = demo_sorcery_start;
     67 const uint32_t demo_sorcery_light = demo_sorcery_start + 1;
     68 const uint32_t demo_sorcery_end = demo_sorcery_start + 2;
     69 
     70 const uint32_t demo_magic_card_trick = demo_magic_start;
     71 const uint32_t demo_magic_levitation = demo_magic_start + 1;
     72 const uint32_t demo_magic_end = demo_magic_start + 2;
     73 
     74 } // namespace default_camera_hal
     75 
     76 #endif // VENDOR_TAGS_H_
     77