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Merge pull request #4239 from apavlenko:android_ocl_sample2

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This commit is contained in:
Alexander Alekhin 2015-08-12 14:00:36 +00:00
commit d789c810bf
23 changed files with 1520 additions and 0 deletions
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9
samples/android/tutorial-4-opencl/.classpath Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="con" path="com.android.ide.eclipse.adt.ANDROID_FRAMEWORK"/>
<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.LIBRARIES"/>
<classpathentry exported="true" kind="con" path="com.android.ide.eclipse.adt.DEPENDENCIES"/>
<classpathentry kind="src" path="src"/>
<classpathentry kind="src" path="gen"/>
<classpathentry kind="output" path="bin/classes"/>
</classpath>

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samples/android/tutorial-4-opencl/.cproject Normal file
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?fileVersion 4.0.0?><cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
<storageModule moduleId="org.eclipse.cdt.core.settings">
<cconfiguration id="com.android.toolchain.gcc.2119826334">
<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="com.android.toolchain.gcc.2119826334" moduleId="org.eclipse.cdt.core.settings" name="Default">
<externalSettings/>
<extensions>
<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.MakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.VCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
</extensions>
</storageModule>
<storageModule moduleId="cdtBuildSystem" version="4.0.0">
<configuration artifactName="${ProjName}" buildProperties="" description="" id="com.android.toolchain.gcc.2119826334" name="Default" parent="org.eclipse.cdt.build.core.emptycfg">
<folderInfo id="com.android.toolchain.gcc.2119826334.1853372756" name="/" resourcePath="">
<toolChain id="com.android.toolchain.gcc.344648270" name="com.android.toolchain.gcc" superClass="com.android.toolchain.gcc">
<targetPlatform binaryParser="org.eclipse.cdt.core.ELF" id="com.android.targetPlatform.443518540" isAbstract="false" superClass="com.android.targetPlatform"/>
<builder command="ndk-build.cmd" id="com.android.builder.1393780489" keepEnvironmentInBuildfile="false" managedBuildOn="false" name="Android Builder" superClass="com.android.builder">
<outputEntries>
<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="outputPath" name="obj"/>
<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="outputPath" name="libs"/>
</outputEntries>
</builder>
<tool id="com.android.gcc.compiler.1725706653" name="Android GCC Compiler" superClass="com.android.gcc.compiler">
<option id="com.android.gcc.option.includePath.1852635009" superClass="com.android.gcc.option.includePath" valueType="includePath">
<listOptionValue builtIn="false" value="../$(O4A_SDK_ROOT)/sdk/native/jni/include"/>
</option>
<inputType id="com.android.gcc.inputType.193477776" superClass="com.android.gcc.inputType"/>
</tool>
</toolChain>
</folderInfo>
<sourceEntries>
<entry flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name="jni"/>
</sourceEntries>
</configuration>
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<storageModule moduleId="org.eclipse.cdt.core.externalSettings"/>
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<project id="tutorial-4-opencl.null.126354959" name="tutorial-4-opencl"/>
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<storageModule moduleId="org.eclipse.cdt.core.LanguageSettingsProviders"/>
<storageModule moduleId="scannerConfiguration">
<autodiscovery enabled="true" problemReportingEnabled="true" selectedProfileId=""/>
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<storageModule moduleId="refreshScope" versionNumber="2">
<configuration configurationName="Default">
<resource resourceType="FOLDER" workspacePath="/tutorial-4-opencl/jni"/>
</configuration>
</storageModule>
<storageModule moduleId="org.eclipse.cdt.internal.ui.text.commentOwnerProjectMappings"/>
</cproject>

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samples/android/tutorial-4-opencl/.project Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>OpenCV Tutorial 4 - Use OpenCL</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.cdt.managedbuilder.core.genmakebuilder</name>
<triggers>clean,full,incremental,</triggers>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>com.android.ide.eclipse.adt.ResourceManagerBuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>com.android.ide.eclipse.adt.PreCompilerBuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>com.android.ide.eclipse.adt.ApkBuilder</name>
<arguments>
</arguments>
</buildCommand>
<buildCommand>
<name>org.eclipse.cdt.managedbuilder.core.ScannerConfigBuilder</name>
<triggers>full,incremental,</triggers>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>com.android.ide.eclipse.adt.AndroidNature</nature>
<nature>org.eclipse.jdt.core.javanature</nature>
<nature>org.eclipse.cdt.core.cnature</nature>
<nature>org.eclipse.cdt.core.ccnature</nature>
<nature>org.eclipse.cdt.managedbuilder.core.managedBuildNature</nature>
<nature>org.eclipse.cdt.managedbuilder.core.ScannerConfigNature</nature>
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</projectDescription>

4
samples/android/tutorial-4-opencl/.settings/org.eclipse.jdt.core.prefs Normal file
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eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
org.eclipse.jdt.core.compiler.compliance=1.6
org.eclipse.jdt.core.compiler.source=1.6

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samples/android/tutorial-4-opencl/AndroidManifest.xml Normal file
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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="org.opencv.samples.tutorial4"
android:versionCode="1"
android:versionName="1.0" >
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="21" />
<uses-feature android:glEsVersion="0x00020000" android:required="true"/>
<uses-feature android:name="android.hardware.camera"/>
<uses-feature android:name="android.hardware.camera2" android:required="false"/>
<uses-permission android:name="android.permission.CAMERA"/>
<application
android:allowBackup="true"
android:icon="@drawable/icon"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen" >
<activity
android:name=".Tutorial4Activity"
android:label="@string/app_name"
android:screenOrientation="landscape"
android:configChanges="keyboardHidden|orientation">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
</application>
</manifest>

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samples/android/tutorial-4-opencl/CMakeLists.txt Normal file
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set(sample example-tutorial-4-opencl)
if(BUILD_FAT_JAVA_LIB)
set(native_deps opencv_java)
else()
set(native_deps opencv_imgproc)
endif()
add_android_project(${sample} "${CMAKE_CURRENT_SOURCE_DIR}" LIBRARY_DEPS ${OpenCV_BINARY_DIR} SDK_TARGET 21 ${ANDROID_SDK_TARGET} NATIVE_DEPS ${native_deps})
if(TARGET ${sample})
add_dependencies(opencv_android_examples ${sample})
endif()

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samples/android/tutorial-4-opencl/jni/Android.mk Normal file
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LOCAL_PATH := $(call my-dir)
# add OpenCV
include $(CLEAR_VARS)
OPENCV_INSTALL_MODULES:=on
ifeq ($(O4A_SDK_ROOT),)
include ../../sdk/native/jni/OpenCV.mk
else
include $(O4A_SDK_ROOT)/sdk/native/jni/OpenCV.mk
endif
# add OpenCL
LOCAL_C_INCLUDES += $(OPENCL_SDK)/include
LOCAL_LDLIBS += -L$(OPENCL_SDK)/lib/$(TARGET_ARCH_ABI) -lOpenCL
LOCAL_MODULE := JNIrender
LOCAL_SRC_FILES := jni.c GLrender.cpp CLprocessor.cpp
LOCAL_LDLIBS += -llog -lGLESv2 -lEGL
include $(BUILD_SHARED_LIBRARY)

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samples/android/tutorial-4-opencl/jni/Application.mk Normal file
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APP_STL := gnustl_static
APP_GNUSTL_FORCE_CPP_FEATURES := exceptions rtti
APP_ABI := armeabi-v7a
APP_PLATFORM := android-14

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samples/android/tutorial-4-opencl/jni/CLprocessor.cpp Normal file
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#define __CL_ENABLE_EXCEPTIONS
#include <CL/cl.hpp>
#include <EGL/egl.h>
#include <opencv2/opencv.hpp>
#include <opencv2/core/ocl.hpp>
#include "common.hpp"
const char oclProgB2B[] = "// clBuffer to clBuffer";
const char oclProgI2B[] = "// clImage to clBuffer";
const char oclProgI2I[] = \
"__constant sampler_t sampler = CLK_NORMALIZED_COORDS_FALSE | CLK_ADDRESS_CLAMP_TO_EDGE | CLK_FILTER_NEAREST; \n" \
"\n" \
"__kernel void Laplacian( \n" \
" __read_only image2d_t imgIn, \n" \
" __write_only image2d_t imgOut \n" \
" ) { \n" \
" \n" \
" const int2 pos = {get_global_id(0), get_global_id(1)}; \n" \
" \n" \
" float4 sum = (float4) 0.0f; \n" \
" sum += read_imagef(imgIn, sampler, pos + (int2)(-1,0)); \n" \
" sum += read_imagef(imgIn, sampler, pos + (int2)(+1,0)); \n" \
" sum += read_imagef(imgIn, sampler, pos + (int2)(0,-1)); \n" \
" sum += read_imagef(imgIn, sampler, pos + (int2)(0,+1)); \n" \
" sum -= read_imagef(imgIn, sampler, pos) * 4; \n" \
" \n" \
" write_imagef(imgOut, pos, sum*10); \n" \
"} \n";
void dumpCLinfo()
{
LOGD("*** OpenCL info ***");
try
{
std::vector<cl::Platform> platforms;
cl::Platform::get(&platforms);
LOGD("OpenCL info: Found %d OpenCL platforms", platforms.size());
for (int i = 0; i < platforms.size(); ++i)
{
std::string name = platforms[i].getInfo<CL_PLATFORM_NAME>();
std::string version = platforms[i].getInfo<CL_PLATFORM_VERSION>();
std::string profile = platforms[i].getInfo<CL_PLATFORM_PROFILE>();
std::string extensions = platforms[i].getInfo<CL_PLATFORM_EXTENSIONS>();
LOGD( "OpenCL info: Platform[%d] = %s, ver = %s, prof = %s, ext = %s",
i, name.c_str(), version.c_str(), profile.c_str(), extensions.c_str() );
}
std::vector<cl::Device> devices;
platforms[0].getDevices(CL_DEVICE_TYPE_ALL, &devices);
for (int i = 0; i < devices.size(); ++i)
{
std::string name = devices[i].getInfo<CL_DEVICE_NAME>();
std::string extensions = devices[i].getInfo<CL_DEVICE_EXTENSIONS>();
cl_ulong type = devices[i].getInfo<CL_DEVICE_TYPE>();
LOGD( "OpenCL info: Device[%d] = %s (%s), ext = %s",
i, name.c_str(), (type==CL_DEVICE_TYPE_GPU ? "GPU" : "CPU"), extensions.c_str() );
}
}
catch(cl::Error& e)
{
LOGE( "OpenCL info: error while gathering OpenCL info: %s (%d)", e.what(), e.err() );
}
catch(std::exception& e)
{
LOGE( "OpenCL info: error while gathering OpenCL info: %s", e.what() );
}
catch(...)
{
LOGE( "OpenCL info: unknown error while gathering OpenCL info" );
}
LOGD("*******************");
}
cl::Context theContext;
cl::CommandQueue theQueue;
cl::Program theProgB2B, theProgI2B, theProgI2I;
void initCL()
{
dumpCLinfo();
EGLDisplay mEglDisplay = eglGetCurrentDisplay();
if (mEglDisplay == EGL_NO_DISPLAY)
LOGE("initCL: eglGetCurrentDisplay() returned 'EGL_NO_DISPLAY', error = %x", eglGetError());
EGLContext mEglContext = eglGetCurrentContext();
if (mEglContext == EGL_NO_CONTEXT)
LOGE("initCL: eglGetCurrentContext() returned 'EGL_NO_CONTEXT', error = %x", eglGetError());
cl_context_properties props[] =
{ CL_GL_CONTEXT_KHR, (cl_context_properties) mEglContext,
CL_EGL_DISPLAY_KHR, (cl_context_properties) mEglDisplay,
CL_CONTEXT_PLATFORM, 0,
0 };
try
{
cl::Platform p = cl::Platform::getDefault();
std::string ext = p.getInfo<CL_PLATFORM_EXTENSIONS>();
if(ext.find("cl_khr_gl_sharing") == std::string::npos)
LOGE("Warning: CL-GL sharing isn't supported by PLATFORM");
props[5] = (cl_context_properties) p();
theContext = cl::Context(CL_DEVICE_TYPE_GPU, props);
std::vector<cl::Device> devs = theContext.getInfo<CL_CONTEXT_DEVICES>();
LOGD("Context returned %d devices, taking the 1st one", devs.size());
ext = devs[0].getInfo<CL_DEVICE_EXTENSIONS>();
if(ext.find("cl_khr_gl_sharing") == std::string::npos)
LOGE("Warning: CL-GL sharing isn't supported by DEVICE");
theQueue = cl::CommandQueue(theContext, devs[0]);
cl::Program::Sources src(1, std::make_pair(oclProgI2I, sizeof(oclProgI2I)));
theProgI2I = cl::Program(theContext, src);
theProgI2I.build(devs);
cv::ocl::attachContext(p.getInfo<CL_PLATFORM_NAME>(), p(), theContext(), devs[0]());
if( cv::ocl::useOpenCL() )
LOGD("OpenCV+OpenCL works OK!");
else
LOGE("Can't init OpenCV with OpenCL TAPI");
}
catch(cl::Error& e)
{
LOGE("cl::Error: %s (%d)", e.what(), e.err());
}
catch(std::exception& e)
{
LOGE("std::exception: %s", e.what());
}
catch(...)
{
LOGE( "OpenCL info: unknown error while initializing OpenCL stuff" );
}
LOGD("initCL completed");
}
void closeCL()
{
}
#define GL_TEXTURE_2D 0x0DE1
void procOCL_I2I(int texIn, int texOut, int w, int h)
{
LOGD("procOCL_I2I(%d, %d, %d, %d)", texIn, texOut, w, h);
cl::ImageGL imgIn (theContext, CL_MEM_READ_ONLY, GL_TEXTURE_2D, 0, texIn);
cl::ImageGL imgOut(theContext, CL_MEM_WRITE_ONLY, GL_TEXTURE_2D, 0, texOut);
std::vector < cl::Memory > images;
images.push_back(imgIn);
images.push_back(imgOut);
int64_t t = getTimeMs();
theQueue.enqueueAcquireGLObjects(&images);
theQueue.finish();
LOGD("enqueueAcquireGLObjects() costs %d ms", getTimeInterval(t));
t = getTimeMs();
cl::Kernel Laplacian(theProgI2I, "Laplacian"); //TODO: may be done once
Laplacian.setArg(0, imgIn);
Laplacian.setArg(1, imgOut);
theQueue.finish();
LOGD("Kernel() costs %d ms", getTimeInterval(t));
t = getTimeMs();
theQueue.enqueueNDRangeKernel(Laplacian, cl::NullRange, cl::NDRange(w, h), cl::NullRange);
theQueue.finish();
LOGD("enqueueNDRangeKernel() costs %d ms", getTimeInterval(t));
t = getTimeMs();
theQueue.enqueueReleaseGLObjects(&images);
theQueue.finish();
LOGD("enqueueReleaseGLObjects() costs %d ms", getTimeInterval(t));
}
void procOCL_OCV(int tex, int w, int h)
{
int64_t t = getTimeMs();
cl::ImageGL imgIn (theContext, CL_MEM_READ_ONLY, GL_TEXTURE_2D, 0, tex);
std::vector < cl::Memory > images(1, imgIn);
theQueue.enqueueAcquireGLObjects(&images);
theQueue.finish();
cv::UMat uIn, uOut, uTmp;
cv::ocl::convertFromImage(imgIn(), uIn);
LOGD("loading texture data to OpenCV UMat costs %d ms", getTimeInterval(t));
theQueue.enqueueReleaseGLObjects(&images);
t = getTimeMs();
//cv::blur(uIn, uOut, cv::Size(5, 5));
cv::Laplacian(uIn, uTmp, CV_8U);
cv:multiply(uTmp, 10, uOut);
cv::ocl::finish();
LOGD("OpenCV processing costs %d ms", getTimeInterval(t));
t = getTimeMs();
cl::ImageGL imgOut(theContext, CL_MEM_WRITE_ONLY, GL_TEXTURE_2D, 0, tex);
images.clear();
images.push_back(imgOut);
theQueue.enqueueAcquireGLObjects(&images);
cl_mem clBuffer = (cl_mem)uOut.handle(cv::ACCESS_READ);
cl_command_queue q = (cl_command_queue)cv::ocl::Queue::getDefault().ptr();
size_t offset = 0;
size_t origin[3] = { 0, 0, 0 };
size_t region[3] = { w, h, 1 };
CV_Assert(clEnqueueCopyBufferToImage (q, clBuffer, imgOut(), offset, origin, region, 0, NULL, NULL) == CL_SUCCESS);
theQueue.enqueueReleaseGLObjects(&images);
cv::ocl::finish();
LOGD("uploading results to texture costs %d ms", getTimeInterval(t));
}

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samples/android/tutorial-4-opencl/jni/GLrender.cpp Normal file
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#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <opencv2/opencv.hpp>
#include "common.hpp"
float vertices[] = {
-1.0f, -1.0f,
-1.0f, 1.0f,
1.0f, -1.0f,
1.0f, 1.0f
};
float texCoordOES[] = {
0.0f, 1.0f,
0.0f, 0.0f,
1.0f, 1.0f,
1.0f, 0.0f
};
float texCoord2D[] = {
0.0f, 0.0f,
0.0f, 1.0f,
1.0f, 0.0f,
1.0f, 1.0f
};
const char vss[] = \
"attribute vec2 vPosition;\n" \
"attribute vec2 vTexCoord;\n" \
"varying vec2 texCoord;\n" \
"void main() {\n" \
" texCoord = vTexCoord;\n" \
" gl_Position = vec4 ( vPosition, 0.0f, 1.0f );\n" \
"}";
const char fssOES[] = \
"#extension GL_OES_EGL_image_external : require\n" \
"precision mediump float;\n" \
"uniform samplerExternalOES sTexture;\n" \
"varying vec2 texCoord;\n" \
"void main() {\n" \
" gl_FragColor = texture2D(sTexture,texCoord);\n" \
"}";
const char fss2D[] = \
"precision mediump float;\n" \
"uniform sampler2D sTexture;\n" \
"varying vec2 texCoord;\n" \
"void main() {\n" \
" gl_FragColor = texture2D(sTexture,texCoord);\n" \
"}";
GLuint progOES = 0;
GLuint prog2D = 0;
GLint vPosOES, vTCOES;
GLint vPos2D, vTC2D;
GLuint FBOtex = 0, FBOtex2 = 0;
GLuint FBO = 0;
GLuint texOES = 0;
int texWidth = 0, texHeight = 0;
enum ProcMode {PROC_MODE_CPU=1, PROC_MODE_OCL_DIRECT=2, PROC_MODE_OCL_OCV=3};
ProcMode procMode = PROC_MODE_CPU;
static inline void deleteTex(GLuint* tex)
{
if(tex && *tex)
{
glDeleteTextures(1, tex);
*tex = 0;
}
}
static void releaseFBO()
{
if (FBO != 0)
{
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glDeleteFramebuffers(1, &FBO);
FBO = 0;
}
deleteTex(&FBOtex);
deleteTex(&FBOtex2);
glDeleteProgram(prog2D);
prog2D = 0;
}
static inline void logShaderCompileError(GLuint shader, bool isProgram = false)
{
GLchar msg[512];
msg[0] = 0;
GLsizei len;
if(isProgram)
glGetProgramInfoLog(shader, sizeof(msg)-1, &len, msg);
else
glGetShaderInfoLog(shader, sizeof(msg)-1, &len, msg);
LOGE("Could not compile shader/program: %s", msg);
}
static int makeShaderProg(const char* vss, const char* fss)
{
LOGD("makeShaderProg: setup GL_VERTEX_SHADER");
GLuint vshader = glCreateShader(GL_VERTEX_SHADER);
const GLchar* text = vss;
glShaderSource(vshader, 1, &text, 0);
glCompileShader(vshader);
GLint compiled;
glGetShaderiv(vshader, GL_COMPILE_STATUS, &compiled);
if (!compiled) {
logShaderCompileError(vshader);
glDeleteShader(vshader);
vshader = 0;
}
LOGD("makeShaderProg: setup GL_FRAGMENT_SHADER");
GLuint fshader = glCreateShader(GL_FRAGMENT_SHADER);
text = fss;
glShaderSource(fshader, 1, &text, 0);
glCompileShader(fshader);
glGetShaderiv(fshader, GL_COMPILE_STATUS, &compiled);
if (!compiled) {
logShaderCompileError(fshader);
glDeleteShader(fshader);
fshader = 0;
}
LOGD("makeShaderProg: glCreateProgram");
GLuint program = glCreateProgram();
glAttachShader(program, vshader);
glAttachShader(program, fshader);
glLinkProgram(program);
GLint linked;
glGetProgramiv(program, GL_LINK_STATUS, &linked);
if (!linked)
{
logShaderCompileError(program, true);
glDeleteProgram(program);
program = 0;
}
glValidateProgram(program);
GLint validated;
glGetProgramiv(program, GL_VALIDATE_STATUS, &validated);
if (!validated)
{
logShaderCompileError(program, true);
glDeleteProgram(program);
program = 0;
}
if(vshader) glDeleteShader(vshader);
if(fshader) glDeleteShader(fshader);
return program;
}
static void initFBO(int width, int height)
{
LOGD("initFBO(%d, %d)", width, height);
releaseFBO();
glGenTextures(1, &FBOtex2);
glBindTexture(GL_TEXTURE_2D, FBOtex2);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glGenTextures(1, &FBOtex);
glBindTexture(GL_TEXTURE_2D, FBOtex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, 0);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
//int hFBO;
glGenFramebuffers(1, &FBO);
glBindFramebuffer(GL_FRAMEBUFFER, FBO);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, FBOtex, 0);
LOGD("initFBO status: %d", glGetError());
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE)
LOGE("initFBO failed: %d", glCheckFramebufferStatus(GL_FRAMEBUFFER));
prog2D = makeShaderProg(vss, fss2D);
vPos2D = glGetAttribLocation(prog2D, "vPosition");
vTC2D = glGetAttribLocation(prog2D, "vTexCoord");
glEnableVertexAttribArray(vPos2D);
glEnableVertexAttribArray(vTC2D);
}
void drawTex(int tex, GLenum texType, GLuint fbo)
{
int64_t t = getTimeMs();
//draw texture to FBO or to screen
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glViewport(0, 0, texWidth, texHeight);
glClear(GL_COLOR_BUFFER_BIT);
GLuint prog = texType == GL_TEXTURE_EXTERNAL_OES ? progOES : prog2D;
GLint vPos = texType == GL_TEXTURE_EXTERNAL_OES ? vPosOES : vPos2D;
GLint vTC = texType == GL_TEXTURE_EXTERNAL_OES ? vTCOES : vTC2D;
float* texCoord = texType == GL_TEXTURE_EXTERNAL_OES ? texCoordOES : texCoord2D;
glUseProgram(prog);
glVertexAttribPointer(vPos, 2, GL_FLOAT, false, 4*2, vertices);
glVertexAttribPointer(vTC, 2, GL_FLOAT, false, 4*2, texCoord);
glActiveTexture(GL_TEXTURE0);
glBindTexture(texType, tex);
glUniform1i(glGetUniformLocation(prog, "sTexture"), 0);
glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glFlush();
LOGD("drawTex(%u) costs %d ms", tex, getTimeInterval(t));
}
void drawFrameOrig()
{
drawTex(texOES, GL_TEXTURE_EXTERNAL_OES, 0);
}
void procCPU(char* buff, int w, int h)
{
int64_t t = getTimeMs();
cv::Mat m(h, w, CV_8UC4, buff);
cv::Laplacian(m, m, CV_8U);
m *= 10;
LOGD("procCPU() costs %d ms", getTimeInterval(t));
}
void drawFrameProcCPU()
{
int64_t t;
drawTex(texOES, GL_TEXTURE_EXTERNAL_OES, FBO);
// let's modify pixels in FBO texture in C++ code (on CPU)
const int BUFF_SIZE = 1<<24;//2k*2k*4;
static char tmpBuff[BUFF_SIZE];
if(texWidth*texHeight > BUFF_SIZE)
{
LOGE("Internal temp buffer is too small, can't make CPU frame processing");
return;
}
// read
t = getTimeMs();
glReadPixels(0, 0, texWidth, texHeight, GL_RGBA, GL_UNSIGNED_BYTE, tmpBuff);
LOGD("glReadPixels() costs %d ms", getTimeInterval(t));
// modify
procCPU(tmpBuff, texWidth, texHeight);
// write back
t = getTimeMs();
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texWidth, texHeight, GL_RGBA, GL_UNSIGNED_BYTE, tmpBuff);
LOGD("glTexSubImage2D() costs %d ms", getTimeInterval(t));
// render to screen
drawTex(FBOtex, GL_TEXTURE_2D, 0);
}
void procOCL_I2I(int texIn, int texOut, int w, int h);
void procOCL_OCV(int tex, int w, int h);
void drawFrameProcOCL()
{
drawTex(texOES, GL_TEXTURE_EXTERNAL_OES, FBO);
// modify pixels in FBO texture using OpenCL and CL-GL interop
procOCL_I2I(FBOtex, FBOtex2, texWidth, texHeight);
// render to screen
drawTex(FBOtex2, GL_TEXTURE_2D, 0);
}
void drawFrameProcOCLOCV()
{
drawTex(texOES, GL_TEXTURE_EXTERNAL_OES, FBO);
// modify pixels in FBO texture using OpenCL and CL-GL interop
procOCL_OCV(FBOtex, texWidth, texHeight);
// render to screen
drawTex(FBOtex, GL_TEXTURE_2D, 0);
}
extern "C" void drawFrame()
{
LOGD("*** drawFrame() ***");
int64_t t = getTimeMs();
switch(procMode)
{
case PROC_MODE_CPU: drawFrameProcCPU(); break;
case PROC_MODE_OCL_DIRECT: drawFrameProcOCL(); break;
case PROC_MODE_OCL_OCV: drawFrameProcOCLOCV(); break;
default: drawFrameOrig();
}
glFinish();
LOGD("*** drawFrame() costs %d ms ***", getTimeInterval(t));
}
void closeCL();
extern "C" void closeGL()
{
closeCL();
LOGD("closeGL");
deleteTex(&texOES);
glUseProgram(0);
glDeleteProgram(progOES);
progOES = 0;
releaseFBO();
}
void initCL();
extern "C" int initGL()
{
LOGD("initGL");
closeGL();
const char* vs = (const char*)glGetString(GL_VERSION);
LOGD("GL_VERSION = %s", vs);
progOES = makeShaderProg(vss, fssOES);
vPosOES = glGetAttribLocation(progOES, "vPosition");
vTCOES = glGetAttribLocation(progOES, "vTexCoord");
glEnableVertexAttribArray(vPosOES);
glEnableVertexAttribArray(vTCOES);
glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
texOES = 0;
glGenTextures(1, &texOES);
glBindTexture(GL_TEXTURE_EXTERNAL_OES, texOES);
glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
initCL();
return texOES;
}
extern "C" void changeSize(int width, int height)
{
const int MAX_W=1<<11, MAX_H=1<<11;
LOGD("changeSize: %dx%d", width, height);
texWidth = width <= MAX_W ? width : MAX_W;
texHeight = height <= MAX_H ? height : MAX_H;
initFBO(texWidth, texHeight);
}
extern "C" void setProcessingMode(int mode)
{
switch(mode)
{
case PROC_MODE_CPU: procMode = PROC_MODE_CPU; break;
case PROC_MODE_OCL_DIRECT: procMode = PROC_MODE_OCL_DIRECT; break;
case PROC_MODE_OCL_OCV: procMode = PROC_MODE_OCL_OCV; break;
}
}

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samples/android/tutorial-4-opencl/jni/common.hpp Normal file
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#include <android/log.h>
#define LOG_TAG "JNIRenderer"
//#define LOGD(...)
#define LOGD(...) ((void)__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__))
#define LOGE(...) ((void)__android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__))
#include <time.h> // clock_gettime
static inline int64_t getTimeMs()
{
struct timespec now;
clock_gettime(CLOCK_MONOTONIC, &now);
return (int64_t) now.tv_sec*1000 + now.tv_nsec/1000000;
}
static inline int getTimeInterval(int64_t startTime)
{
return int(getTimeMs() - startTime);
}

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#include <jni.h>
int initGL();
void closeGL();
void changeSize(int width, int height);
void drawFrame();
void setProcessingMode(int mode);
JNIEXPORT jint JNICALL Java_org_opencv_samples_tutorial4_NativeGLRenderer_initGL(JNIEnv * env, jclass cls)
{
return initGL();
}
JNIEXPORT void JNICALL Java_org_opencv_samples_tutorial4_NativeGLRenderer_closeGL(JNIEnv * env, jclass cls)
{
closeGL();
}
JNIEXPORT void JNICALL Java_org_opencv_samples_tutorial4_NativeGLRenderer_changeSize(JNIEnv * env, jclass cls, jint width, jint height)
{
changeSize(width, height);
}
JNIEXPORT void JNICALL Java_org_opencv_samples_tutorial4_NativeGLRenderer_drawFrame(JNIEnv * env, jclass cls)
{
drawFrame();
}
JNIEXPORT void JNICALL Java_org_opencv_samples_tutorial4_NativeGLRenderer_setProcessingMode(JNIEnv * env, jclass cls, jint mode)
{
setProcessingMode(mode);
}

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<?xml version="1.0" encoding="UTF-8"?>
<lint>
</lint>

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samples/android/tutorial-4-opencl/res/layout/activity.xml Normal file
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<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<org.opencv.samples.tutorial4.MyGLSurfaceView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/my_gl_surface_view" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation = "vertical" >
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/fps_text_view"
android:text="FPS:" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/proc_mode_text_view"
android:text="Processing mode:" />
</LinearLayout>
</FrameLayout>

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<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android" >
<group android:checkableBehavior="single">
<item android:id="@+id/cpu" android:title="Use CPU code" />
<item android:id="@+id/ocl_direct" android:title="Use OpenCL direct" />
<item android:id="@+id/ocl_ocv" android:title="Use OpenCL via OpenCV" />
</group>
</menu>

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<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="app_name">OpenCV Tutorial 4 - Use OpenCL</string>
</resources>

282
samples/android/tutorial-4-opencl/src/org/opencv/samples/tutorial4/Camera2Renderer.java Normal file
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package org.opencv.samples.tutorial4;
import java.util.Arrays;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;
import android.annotation.SuppressLint;
import android.content.Context;
import android.graphics.Point;
import android.graphics.SurfaceTexture;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CaptureRequest;
import android.hardware.camera2.params.StreamConfigurationMap;
import android.os.Handler;
import android.os.HandlerThread;
import android.util.Log;
import android.util.Size;
import android.view.Surface;
@SuppressLint("NewApi") public class Camera2Renderer extends MyGLRendererBase {
protected final String LOGTAG = "Camera2Renderer";
private CameraDevice mCameraDevice;
private CameraCaptureSession mCaptureSession;
private CaptureRequest.Builder mPreviewRequestBuilder;
private String mCameraID;
private Size mPreviewSize = new Size(1280, 720);
private HandlerThread mBackgroundThread;
private Handler mBackgroundHandler;
private Semaphore mCameraOpenCloseLock = new Semaphore(1);
Camera2Renderer(MyGLSurfaceView view) {
super(view);
}
public void onResume() {
stopBackgroundThread();
super.onResume();
startBackgroundThread();
}
public void onPause() {
super.onPause();
stopBackgroundThread();
}
boolean cacPreviewSize(final int width, final int height) {
Log.i(LOGTAG, "cacPreviewSize: "+width+"x"+height);
if(mCameraID == null)
return false;
CameraManager manager = (CameraManager) mView.getContext()
.getSystemService(Context.CAMERA_SERVICE);
try {
CameraCharacteristics characteristics = manager
.getCameraCharacteristics(mCameraID);
StreamConfigurationMap map = characteristics
.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
int bestWidth = 0, bestHeight = 0;
float aspect = (float)width / height;
for (Size psize : map.getOutputSizes(SurfaceTexture.class)) {
int w = psize.getWidth(), h = psize.getHeight();
Log.d(LOGTAG, "trying size: "+w+"x"+h);
if ( width >= w && height >= h &&
bestWidth <= w && bestHeight <= h &&
Math.abs(aspect - (float)w/h) < 0.2 ) {
bestWidth = w;
bestHeight = h;
//mPreviewSize = psize;
}
}
Log.i(LOGTAG, "best size: "+bestWidth+"x"+bestHeight);
if( mPreviewSize.getWidth() == bestWidth &&
mPreviewSize.getHeight() == bestHeight )
return false;
else {
mPreviewSize = new Size(bestWidth, bestHeight);
return true;
}
} catch (CameraAccessException e) {
Log.e(LOGTAG, "cacPreviewSize - Camera Access Exception");
} catch (IllegalArgumentException e) {
Log.e(LOGTAG, "cacPreviewSize - Illegal Argument Exception");
} catch (SecurityException e) {
Log.e(LOGTAG, "cacPreviewSize - Security Exception");
}
return false;
}
protected void openCamera() {
Log.i(LOGTAG, "openCamera");
//closeCamera();
CameraManager manager = (CameraManager) mView.getContext()
.getSystemService(Context.CAMERA_SERVICE);
try {
for (String cameraID : manager.getCameraIdList()) {
CameraCharacteristics characteristics = manager
.getCameraCharacteristics(cameraID);
if (characteristics.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT)
continue;
mCameraID = cameraID;
break;
}
if (!mCameraOpenCloseLock.tryAcquire(2500, TimeUnit.MILLISECONDS)) {
throw new RuntimeException(
"Time out waiting to lock camera opening.");
}
manager.openCamera(mCameraID, mStateCallback, mBackgroundHandler);
} catch (CameraAccessException e) {
Log.e(LOGTAG, "OpenCamera - Camera Access Exception");
} catch (IllegalArgumentException e) {
Log.e(LOGTAG, "OpenCamera - Illegal Argument Exception");
} catch (SecurityException e) {
Log.e(LOGTAG, "OpenCamera - Security Exception");
} catch (InterruptedException e) {
Log.e(LOGTAG, "OpenCamera - Interrupted Exception");
}
}
protected void closeCamera() {
Log.i(LOGTAG, "closeCamera");
try {
mCameraOpenCloseLock.acquire();
if (null != mCaptureSession) {
mCaptureSession.close();
mCaptureSession = null;
}
if (null != mCameraDevice) {
mCameraDevice.close();
mCameraDevice = null;
}
} catch (InterruptedException e) {
throw new RuntimeException(
"Interrupted while trying to lock camera closing.", e);
} finally {
mCameraOpenCloseLock.release();
}
}
private final CameraDevice.StateCallback mStateCallback = new CameraDevice.StateCallback() {
@Override
public void onOpened(CameraDevice cameraDevice) {
mCameraDevice = cameraDevice;
mCameraOpenCloseLock.release();
createCameraPreviewSession();
}
@Override
public void onDisconnected(CameraDevice cameraDevice) {
//mCameraOpenCloseLock.release();
cameraDevice.close();
mCameraDevice = null;
}
@Override
public void onError(CameraDevice cameraDevice, int error) {
cameraDevice.close();
mCameraDevice = null;
mCameraOpenCloseLock.release();
}
};
private void createCameraPreviewSession() {
Log.i(LOGTAG, "createCameraPreviewSession");
try {
mCameraOpenCloseLock.acquire();
if (null == mCameraDevice) {
mCameraOpenCloseLock.release();
Log.e(LOGTAG, "createCameraPreviewSession: camera isn't opened");
return;
}
if (null != mCaptureSession) {
mCameraOpenCloseLock.release();
Log.e(LOGTAG, "createCameraPreviewSession: mCaptureSession is already started");
return;
}
if(null == mSTex) {
Log.e(LOGTAG, "createCameraPreviewSession: preview SurfaceTexture is null");
return;
}
Log.d(LOGTAG, "starting preview "+mPreviewSize.getWidth()+"x"+mPreviewSize.getHeight());
mSTex.setDefaultBufferSize(mPreviewSize.getWidth(), mPreviewSize.getHeight());
Surface surface = new Surface(mSTex);
Log.d(LOGTAG, "createCameraPreviewSession: surface = " + surface);
mPreviewRequestBuilder = mCameraDevice
.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
mPreviewRequestBuilder.addTarget(surface);
mCameraDevice.createCaptureSession(Arrays.asList(surface),
new CameraCaptureSession.StateCallback() {
@Override
public void onConfigured(
CameraCaptureSession cameraCaptureSession) {
mCaptureSession = cameraCaptureSession;
try {
mPreviewRequestBuilder
.set(CaptureRequest.CONTROL_AF_MODE,
CaptureRequest.CONTROL_AF_MODE_CONTINUOUS_PICTURE);
mPreviewRequestBuilder
.set(CaptureRequest.CONTROL_AE_MODE,
CaptureRequest.CONTROL_AE_MODE_ON_AUTO_FLASH);
mCaptureSession.setRepeatingRequest(
mPreviewRequestBuilder.build(), null,
mBackgroundHandler);
} catch (CameraAccessException e) {
Log.e(LOGTAG, "createCaptureSession failed");
}
mCameraOpenCloseLock.release();
}
@Override
public void onConfigureFailed(
CameraCaptureSession cameraCaptureSession) {
Log.e(LOGTAG, "createCameraPreviewSession failed");
mCameraOpenCloseLock.release();
}
}, null);
} catch (CameraAccessException e) {
Log.e(LOGTAG, "createCameraPreviewSession");
} catch (InterruptedException e) {
throw new RuntimeException(
"Interrupted while createCameraPreviewSession", e);
}
finally {
mCameraOpenCloseLock.release();
}
}
private void startBackgroundThread() {
Log.i(LOGTAG, "startBackgroundThread");
mBackgroundThread = new HandlerThread("CameraBackground");
mBackgroundThread.start();
mBackgroundHandler = new Handler(mBackgroundThread.getLooper());
}
private void stopBackgroundThread() {
Log.i(LOGTAG, "stopBackgroundThread");
if(mBackgroundThread == null)
return;
mBackgroundThread.quitSafely();
try {
mBackgroundThread.join();
mBackgroundThread = null;
mBackgroundHandler = null;
} catch (InterruptedException e) {
Log.e(LOGTAG, "stopBackgroundThread");
}
}
@Override
protected void setCameraPreviewSize(int width, int height) {
//mPreviewSize = new Size(width, height);
if( !cacPreviewSize(width, height) )
return;
try {
mCameraOpenCloseLock.acquire();
if (null != mCaptureSession) {
mCaptureSession.close();
mCaptureSession = null;
}
mCameraOpenCloseLock.release();
createCameraPreviewSession();
} catch (InterruptedException e) {
mCameraOpenCloseLock.release();
throw new RuntimeException(
"Interrupted while setCameraPreviewSize.", e);
}
}
}

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samples/android/tutorial-4-opencl/src/org/opencv/samples/tutorial4/CameraRenderer.java Normal file
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package org.opencv.samples.tutorial4;
import java.io.IOException;
import java.util.List;
import android.hardware.Camera;
import android.hardware.Camera.Size;
import android.util.Log;
@SuppressWarnings("deprecation")
public class CameraRenderer extends MyGLRendererBase {
protected final String LOGTAG = "CameraRenderer";
private Camera mCamera;
boolean mPreviewStarted = false;
CameraRenderer(MyGLSurfaceView view) {
super(view);
}
protected void closeCamera() {
Log.i(LOGTAG, "closeCamera");
if(mCamera != null) {
mCamera.stopPreview();
mPreviewStarted = false;
mCamera.release();
mCamera = null;
}
}
protected void openCamera() {
Log.i(LOGTAG, "openCamera");
closeCamera();
mCamera = Camera.open();
try {
mCamera.setPreviewTexture(mSTex);
} catch (IOException ioe) {
Log.e(LOGTAG, "setPreviewTexture() failed: " + ioe.getMessage());
}
}
public void setCameraPreviewSize(int width, int height) {
Log.i(LOGTAG, "setCameraPreviewSize: "+width+"x"+height);
if(mCamera == null)
return;
if(mPreviewStarted) {
mCamera.stopPreview();
mPreviewStarted = false;
}
Camera.Parameters param = mCamera.getParameters();
List<Size> psize = param.getSupportedPreviewSizes();
int bestWidth = 0, bestHeight = 0;
if (psize.size() > 0) {
float aspect = (float)width / height;
for (Size size : psize) {
int w = size.width, h = size.height;
Log.d("Renderer", "checking camera preview size: "+w+"x"+h);
if ( w <= width && h <= height &&
w >= bestWidth && h >= bestHeight &&
Math.abs(aspect - (float)w/h) < 0.2 ) {
bestWidth = w;
bestHeight = h;
}
}
if(bestWidth > 0 && bestHeight > 0) {
param.setPreviewSize(bestWidth, bestHeight);
Log.i(LOGTAG, "size: "+bestWidth+" x "+bestHeight);
}
}
param.set("orientation", "landscape");
mCamera.setParameters(param);
mCamera.startPreview();
mPreviewStarted = true;
}
}

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samples/android/tutorial-4-opencl/src/org/opencv/samples/tutorial4/MyGLRendererBase.java Normal file
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package org.opencv.samples.tutorial4;
import javax.microedition.khronos.egl.EGLConfig;
import javax.microedition.khronos.opengles.GL10;
import android.graphics.SurfaceTexture;
import android.opengl.GLES20;
import android.opengl.GLSurfaceView;
import android.os.Handler;
import android.os.Looper;
import android.util.Log;
import android.view.View;
import android.widget.TextView;
public abstract class MyGLRendererBase implements GLSurfaceView.Renderer, SurfaceTexture.OnFrameAvailableListener {
protected final String LOGTAG = "MyGLRendererBase";
protected int frameCounter;
protected long lastNanoTime;
protected SurfaceTexture mSTex;
protected MyGLSurfaceView mView;
protected TextView mFpsText;
protected boolean mGLInit = false;
protected boolean mTexUpdate = false;
MyGLRendererBase(MyGLSurfaceView view) {
mView = view;
}
protected abstract void openCamera();
protected abstract void closeCamera();
protected abstract void setCameraPreviewSize(int width, int height);
public void setFpsTextView(TextView fpsTV)
{
mFpsText = fpsTV;
}
public void onResume() {
Log.i(LOGTAG, "onResume");
frameCounter = 0;
lastNanoTime = System.nanoTime();
}
public void onPause() {
Log.i(LOGTAG, "onPause");
mGLInit = false;
mTexUpdate = false;
closeCamera();
if(mSTex != null) {
mSTex.release();
mSTex = null;
NativeGLRenderer.closeGL();
}
}
@Override
public synchronized void onFrameAvailable(SurfaceTexture surfaceTexture) {
//Log.i(LOGTAG, "onFrameAvailable");
mTexUpdate = true;
mView.requestRender();
}
@Override
public void onDrawFrame(GL10 gl) {
//Log.i(LOGTAG, "onDrawFrame");
if (!mGLInit)
return;
synchronized (this) {
if (mTexUpdate) {
mSTex.updateTexImage();
mTexUpdate = false;
}
}
NativeGLRenderer.drawFrame();
// log FPS
frameCounter++;
if(frameCounter >= 10)
{
final int fps = (int) (frameCounter * 1e9 / (System.nanoTime() - lastNanoTime));
Log.i(LOGTAG, "drawFrame() FPS: "+fps);
if(mFpsText != null) {
Runnable fpsUpdater = new Runnable() {
public void run() {
mFpsText.setText("FPS: " + fps);
}
};
new Handler(Looper.getMainLooper()).post(fpsUpdater);
}
frameCounter = 0;
lastNanoTime = System.nanoTime();
}
}
@Override
public void onSurfaceChanged(GL10 gl, int surfaceWidth, int surfaceHeight) {
Log.i(LOGTAG, "onSurfaceChanged("+surfaceWidth+"x"+surfaceHeight+")");
NativeGLRenderer.changeSize(surfaceWidth, surfaceHeight);
setCameraPreviewSize(surfaceWidth, surfaceHeight);
}
@Override
public void onSurfaceCreated(GL10 gl, EGLConfig config) {
Log.i(LOGTAG, "onSurfaceCreated");
String strGLVersion = GLES20.glGetString(GLES20.GL_VERSION);
if (strGLVersion != null)
Log.i(LOGTAG, "OpenGL ES version: " + strGLVersion);
int hTex = NativeGLRenderer.initGL();
mSTex = new SurfaceTexture(hTex);
mSTex.setOnFrameAvailableListener(this);
openCamera();
mGLInit = true;
}
}

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samples/android/tutorial-4-opencl/src/org/opencv/samples/tutorial4/MyGLSurfaceView.java Normal file
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package org.opencv.samples.tutorial4;
import android.app.Activity;
import android.content.Context;
import android.opengl.GLSurfaceView;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.view.SurfaceHolder;
import android.widget.TextView;
public class MyGLSurfaceView extends GLSurfaceView {
MyGLRendererBase mRenderer;
public MyGLSurfaceView(Context context, AttributeSet attrs) {
super(context, attrs);
if(android.os.Build.VERSION.SDK_INT >= 21)
mRenderer = new Camera2Renderer(this);
else
mRenderer = new CameraRenderer(this);
setEGLContextClientVersion(2);
setRenderer(mRenderer);
setRenderMode(GLSurfaceView.RENDERMODE_WHEN_DIRTY);
}
public void setFpsTextView(TextView tv) {
mRenderer.setFpsTextView(tv);
}
@Override
public void surfaceCreated(SurfaceHolder holder) {
super.surfaceCreated(holder);
}
@Override
public void surfaceDestroyed(SurfaceHolder holder) {
super.surfaceDestroyed(holder);
}
@Override
public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) {
super.surfaceChanged(holder, format, w, h);
}
@Override
public void onResume() {
super.onResume();
mRenderer.onResume();
}
@Override
public void onPause() {
mRenderer.onPause();
super.onPause();
}
@Override
public boolean onTouchEvent(MotionEvent e) {
if(e.getAction() == MotionEvent.ACTION_DOWN)
((Activity)getContext()).openOptionsMenu();
return true;
}
}

19
samples/android/tutorial-4-opencl/src/org/opencv/samples/tutorial4/NativeGLRenderer.java Normal file
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package org.opencv.samples.tutorial4;
public class NativeGLRenderer {
static
{
System.loadLibrary("opencv_java3");
System.loadLibrary("JNIrender");
}
public static final int PROCESSING_MODE_CPU = 1;
public static final int PROCESSING_MODE_OCL_DIRECT = 2;
public static final int PROCESSING_MODE_OCL_OCV = 3;
public static native int initGL();
public static native void closeGL();
public static native void drawFrame();
public static native void changeSize(int width, int height);
public static native void setProcessingMode(int mode);
}

93
samples/android/tutorial-4-opencl/src/org/opencv/samples/tutorial4/Tutorial4Activity.java Normal file
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package org.opencv.samples.tutorial4;
import android.app.Activity;
import android.content.pm.ActivityInfo;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.Window;
import android.view.WindowManager;
import android.widget.TextView;
public class Tutorial4Activity extends Activity {
private MyGLSurfaceView mView;
private TextView mProcMode;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
WindowManager.LayoutParams.FLAG_FULLSCREEN);
getWindow().setFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON,
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
//mView = new MyGLSurfaceView(this, null);
//setContentView(mView);
setContentView(R.layout.activity);
mView = (MyGLSurfaceView) findViewById(R.id.my_gl_surface_view);
TextView tv = (TextView)findViewById(R.id.fps_text_view);
mView.setFpsTextView(tv);
mProcMode = (TextView)findViewById(R.id.proc_mode_text_view);
runOnUiThread(new Runnable() {
public void run() {
mProcMode.setText("Processing mode: CPU");
}
});
NativeGLRenderer.setProcessingMode(NativeGLRenderer.PROCESSING_MODE_CPU); }
@Override
protected void onPause() {
mView.onPause();
super.onPause();
}
@Override
protected void onResume() {
super.onResume();
mView.onResume();
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu, menu);
return super.onCreateOptionsMenu(menu);
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case R.id.cpu:
runOnUiThread(new Runnable() {
public void run() {
mProcMode.setText("Processing mode: CPU");
}
});
NativeGLRenderer.setProcessingMode(NativeGLRenderer.PROCESSING_MODE_CPU);
return true;
case R.id.ocl_direct:
runOnUiThread(new Runnable() {
public void run() {
mProcMode.setText("Processing mode: OpenCL direct");
}
});
NativeGLRenderer.setProcessingMode(NativeGLRenderer.PROCESSING_MODE_OCL_DIRECT);
return true;
case R.id.ocl_ocv:
runOnUiThread(new Runnable() {
public void run() {
mProcMode.setText("Processing mode: OpenCL via OpenCV (TAPI)");
}
});
NativeGLRenderer.setProcessingMode(NativeGLRenderer.PROCESSING_MODE_OCL_OCV);
return true;
default:
return false;
}
}
}