diff -r 48780e181b38 -r 578be2adaf3e Symbian3/PDK/Source/GUID-8ED4E590-4FDC-4267-87D9-C7E5E57D6B7E.dita --- a/Symbian3/PDK/Source/GUID-8ED4E590-4FDC-4267-87D9-C7E5E57D6B7E.dita Tue Jul 20 12:00:49 2010 +0100 +++ b/Symbian3/PDK/Source/GUID-8ED4E590-4FDC-4267-87D9-C7E5E57D6B7E.dita Fri Aug 13 16:47:46 2010 +0100 @@ -1,51 +1,51 @@ - - - - - -EGL -Resource Profiling ExtensionThis topic describes the EGL resource profiling extension, which -provides a way to retrieve information about GPU resource utilization. UI -middleware can use this extension to find out how much memory is being used -by the objects created by EGL. -

There are two Nokia EGL resource profiling extensions:

- - -
<codeph>eglQueryProfilingDataNOK</codeph>

The eglQueryProfilingDataNOK() extension function retrieves the resource profiling statistics, such as -the total amount of graphics memory or the amount of private memory used by -a process.

To obtain an extension function, clients call eglGetProcAddress() and -pass in the function name.

Process ID

The Symbian platform -has an 8-byte (64-bit) process ID. EGLNativeProcessIdTypeNOK is -defined as follows:

typedef TUint64 EGLNativeProcessIdTypeNOK;

When -the returned profiling data contains the EGL_PROF_PROCESS_ID_NOK attribute, -the next two 32-bit data elements encode the Symbian 64-bit procecss ID. EGL -Client applications can reconstruct the process ID as follows:

EGLNativeProcessIdTypeNOK processId = ((EGLNativeProcessIdTypeNOK)(data[i])) - +(((EGLNativeProcessIdTypeNOK)(data[i + 1]))<<32); -
- -EGL Interface -Overview -Symbian-Specific -Behavior -EGL Tutorial - -EGL Collection -Overview -EGL Reusable -Sync Extension + + + + + +EGL +Resource Profiling ExtensionThis topic describes the EGL resource profiling extension, which +provides a way to retrieve information about GPU resource utilization. UI +middleware can use this extension to find out how much memory is being used +by the objects created by EGL. +

There are two Nokia EGL resource profiling extensions:

+
    +

  • EGL_NOK_resource_profiling. This extension retrieves data about +GPU resource usage level in a synchronous way. EGL client applications can +call eglQueryProfilingDataNOK() after eglInitialize() to +obtain the current resource profiling information.

    • +

  • EGL_NOK_resource_profiling2. This extension is based on the +EGL_NOK_resource_profiling extension. EGL_NOK_resource_profiling2 additionally +provides asynchronous notification of memory usage changes using resource +profiling sync objects. This uses the EGL_KHR_reusable_sync extension.

    • +
+ +
<codeph>eglQueryProfilingDataNOK</codeph>

The eglQueryProfilingDataNOK() extension function retrieves the resource profiling statistics, such as +the total amount of graphics memory or the amount of private memory used by +a process.

To obtain an extension function, clients call eglGetProcAddress() and +pass in the function name.

Process ID

The Symbian platform +has an 8-byte (64-bit) process ID. EGLNativeProcessIdTypeNOK is +defined as follows:

typedef TUint64 EGLNativeProcessIdTypeNOK;

When +the returned profiling data contains the EGL_PROF_PROCESS_ID_NOK attribute, +the next two 32-bit data elements encode the Symbian 64-bit procecss ID. EGL +Client applications can reconstruct the process ID as follows:

EGLNativeProcessIdTypeNOK processId = ((EGLNativeProcessIdTypeNOK)(data[i])) + +(((EGLNativeProcessIdTypeNOK)(data[i + 1]))<<32); +
+ +EGL Interface +Overview +Symbian-Specific +Behavior +EGL Tutorial + +EGL Collection +Overview +EGL Reusable +Sync Extension \ No newline at end of file