New Tegra detector with Android 4.3 support added. Manager version++.

platforms/android/service/engine/AndroidManifest.xml

 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
     package="org.opencv.engine"
-    android:versionCode="29@ANDROID_PLATFORM_VERSION_CODE@"
-    android:versionName="2.9" >
+    android:versionCode="210@ANDROID_PLATFORM_VERSION_CODE@"
+    android:versionName="2.10" >
 
     <uses-sdk android:minSdkVersion="@ANDROID_NATIVE_API_LEVEL@" />
     <uses-feature android:name="android.hardware.touchscreen" android:required="false"/>

platforms/android/service/engine/CMakeLists.txt

@@ -26,19 +26,32 @@ endif()
 
 configure_file("${CMAKE_CURRENT_SOURCE_DIR}/${ANDROID_MANIFEST_FILE}" "${OpenCV_BINARY_DIR}/platforms/android/service/engine/.build/${ANDROID_MANIFEST_FILE}"  @ONLY)
 
-link_directories("${ANDROID_SOURCE_TREE}/out/target/product/generic/system/lib" "${ANDROID_SOURCE_TREE}/out/target/product/${ANDROID_PRODUCT}/system/lib" "${ANDROID_SOURCE_TREE}/bin/${ANDROID_ARCH_NAME}")
+link_directories(
+  "${ANDROID_SOURCE_TREE}/out/target/product/generic/system/lib"
+  "${ANDROID_SOURCE_TREE}/out/target/product/${ANDROID_PRODUCT}/system/lib"
+  "${ANDROID_SOURCE_TREE}/bin/${ANDROID_ARCH_NAME}")
+
+file(GLOB engine_files "jni/BinderComponent/*.cpp" "jni/BinderComponent/*.h" "jni/include/*.h")
+set(engine_libs "z" "binder" "log" "utils")
+
+if (TEGRA_DETECTOR)
+  if (ANDROID_NATIVE_API_LEVEL GREATER 8)
+    add_definitions(-DUSE_TEGRA_HW_DETECTOR)
+    list(APPEND engine_libs ${TEGRA_DETECTOR} GLESv2 EGL)
+  else()
+    message(FATAL_ERROR "Tegra detector required native api level 9 or above")
+  endif()
+endif()
 
 # -D__SUPPORT_ARMEABI_FEATURES key is also available
 add_definitions(-DPLATFORM_ANDROID -D__SUPPORT_ARMEABI_V7A_FEATURES -D__SUPPORT_TEGRA3 -D__SUPPORT_MIPS)
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti -fno-exceptions")
-
 set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,-allow-shlib-undefined")
-file(GLOB engine_files "jni/BinderComponent/*.cpp" "jni/BinderComponent/*.h" "jni/include/*.h")
 
-include_directories(jni/BinderComponent jni/include)
+include_directories("jni/BinderComponent" "jni/include")
 include_directories(SYSTEM "${ANDROID_SOURCE_TREE}/frameworks/base/include" "${ANDROID_SOURCE_TREE}/system/core/include")
 add_library(${engine} SHARED ${engine_files})
-target_link_libraries(${engine} z binder log utils)
+target_link_libraries(${engine} ${engine_libs})
 
 set_target_properties(${engine} PROPERTIES
     OUTPUT_NAME ${engine}
@@ -51,7 +64,15 @@ add_custom_command(TARGET ${engine} POST_BUILD COMMAND ${CMAKE_STRIP} --strip-un
 file(GLOB engine_jni_files "jni/JNIWrapper/*.cpp" "jni/JNIWrapper/*.h" "jni/include/*.h")
 list(APPEND engine_jni_files jni/NativeService/CommonPackageManager.cpp jni/NativeService/PackageInfo.cpp)
 
-include_directories(jni/include jni/JNIWrapper jni/NativeService jni/BinderComponent "${ANDROID_SOURCE_TREE}/frameworks/base/include" "${ANDROID_SOURCE_TREE}/system/core/include" "${ANDROID_SOURCE_TREE}/frameworks/base/core/jni")
+include_directories(
+  jni/include jni/JNIWrapper
+  jni/NativeService
+  jni/BinderComponent
+  "${ANDROID_SOURCE_TREE}/frameworks/base/include"
+  "${ANDROID_SOURCE_TREE}/system/core/include"
+  "${ANDROID_SOURCE_TREE}/frameworks/base/core/jni"
+  )
+
 add_library(${engine}_jni SHARED ${engine_jni_files})
 target_link_libraries(${engine}_jni z binder log utils android_runtime ${engine})
 

platforms/android/service/engine/jni/BinderComponent/HardwareDetector.cpp

@@ -13,7 +13,7 @@ int GetCpuID()
     map<string, string> cpu_info = GetCpuInfo();
     map<string, string>::const_iterator it;
 
-    #if defined(__i386__)
+#if defined(__i386__)
     LOGD("Using X86 HW detector");
     result |= ARCH_X86;
     it = cpu_info.find("flags");
@@ -161,8 +161,11 @@ int GetProcessorCount()
 
 int DetectKnownPlatforms()
 {
+#if defined(__arm__) && defined(USE_TEGRA_HW_DETECTOR)
     int tegra_status = DetectTegra();
-
+#else
+    int tegra_status = NOT_TEGRA;
+#endif
     // All Tegra platforms since Tegra3
     if (2 < tegra_status)
     {

platforms/android/service/engine/jni/BinderComponent/TegraDetector.cpp

-#include "TegraDetector.h"
-#include <zlib.h>
-#include <string.h>
-
-#define KERNEL_CONFIG "/proc/config.gz"
-#define KERNEL_CONFIG_MAX_LINE_WIDTH 512
-#define KERNEL_CONFIG_TEGRA_MAGIC "CONFIG_ARCH_TEGRA=y"
-#define KERNEL_CONFIG_TEGRA2_MAGIC "CONFIG_ARCH_TEGRA_2x_SOC=y"
-#define KERNEL_CONFIG_TEGRA3_MAGIC "CONFIG_ARCH_TEGRA_3x_SOC=y"
-#define KERNEL_CONFIG_TEGRA4_MAGIC "CONFIG_ARCH_TEGRA_11x_SOC=y"
-#define MAX_DATA_LEN    4096
-
-int DetectTegra()
-{
-    int result = TEGRA_NOT_TEGRA;
-    gzFile kernelConfig = gzopen(KERNEL_CONFIG, "r");
-    if (kernelConfig != 0)
-    {
-        char tmpbuf[KERNEL_CONFIG_MAX_LINE_WIDTH];
-        const char *tegra_config = KERNEL_CONFIG_TEGRA_MAGIC;
-        const char *tegra2_config = KERNEL_CONFIG_TEGRA2_MAGIC;
-        const char *tegra3_config = KERNEL_CONFIG_TEGRA3_MAGIC;
-        const char *tegra4_config = KERNEL_CONFIG_TEGRA4_MAGIC;
-        int len = strlen(tegra_config);
-        int len2 = strlen(tegra2_config);
-        int len3 = strlen(tegra3_config);
-        int len4 = strlen(tegra4_config);
-        while (0 != gzgets(kernelConfig, tmpbuf, KERNEL_CONFIG_MAX_LINE_WIDTH))
-        {
-            if (0 == strncmp(tmpbuf, tegra_config, len))
-            {
-                result = 1;
-            }
-
-            if (0 == strncmp(tmpbuf, tegra2_config, len2))
-            {
-                result = 2;
-                break;
-            }
-
-            if (0 == strncmp(tmpbuf, tegra3_config, len3))
-            {
-                result = 3;
-                break;
-            }
-
-            if (0 == strncmp(tmpbuf, tegra4_config, len4))
-            {
-                result = 4;
-                break;
-            }
-        }
-        gzclose(kernelConfig);
-    }
-    else
-    {
-        result = TEGRA_DETECTOR_ERROR;
-    }
-
-    return result;
-}

platforms/android/service/engine/jni/BinderComponent/TegraDetector.h

@@ -2,7 +2,12 @@
 #define __TEGRA_DETECTOR_H__
 
 #define TEGRA_DETECTOR_ERROR -2
-#define TEGRA_NOT_TEGRA -1
+#define NOT_TEGRA -1
+#define TEGRA2  2
+#define TEGRA3  3
+#define TEGRA4i 4
+#define TEGRA4  5
+#define TEGRA5  6
 
 int DetectTegra();
 

platforms/android/service/engine/src/org/opencv/engine/HardwareDetector.java

@@ -30,11 +30,12 @@ public class HardwareDetector
     // GPU Acceleration options
     public static final int FEATURES_HAS_GPU = 0x010000;
 
-    public static final int PLATFORM_TEGRA  = 1;
-    public static final int PLATFORM_TEGRA2 = 2;
-    public static final int PLATFORM_TEGRA3 = 3;
-    public static final int PLATFORM_TEGRA4 = 4;
-
+    public static final int PLATFORM_TEGRA   = 1;
+    public static final int PLATFORM_TEGRA2  = 2;
+    public static final int PLATFORM_TEGRA3  = 3;
+    public static final int PLATFORM_TEGRA4i = 4;
+    public static final int PLATFORM_TEGRA4  = 5;
+    public static final int PLATFORM_TEGRA5  = 6;
 
     public static final int PLATFORM_UNKNOWN = 0;
 

platforms/android/service/engine/src/org/opencv/engine/manager/ManagerActivity.java

@@ -107,6 +107,10 @@ public class ManagerActivity extends Activity
             {
                 HardwarePlatformView.setText("Tegra 3");
             }
+            else if (HardwareDetector.PLATFORM_TEGRA4i == Platfrom)
+            {
+                HardwarePlatformView.setText("Tegra 4i");
+            }
             else
             {
                 HardwarePlatformView.setText("Tegra 4");