AnisotropicFiltering
Demonstrates how to access anisotropic filtering options, and perform related testing when programming with ADLX.
Command Prompts
| Command Prompt | Description |
|---|---|
| 1 | Display anisotropic filtering support |
| 2 | Display current anisotropic filtering state and level |
| 3 | Enable and change anisotropic filtering levels |
| 4 | Disable anisotropic filtering |
| M/m | Display main menu options |
| Q/q | Quit the application |
Sample Path
/Samples/CPP/3DGraphics/AnisotropicFiltering
Code
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//
// Copyright (c) 2021 - 2025 Advanced Micro Devices, Inc. All rights reserved.
//
//-------------------------------------------------------------------------------------------------
#include "SDK/ADLXHelper/Windows/Cpp/ADLXHelper.h"
#include "SDK/Include/I3DSettings.h"
#include <iostream>
#include <map>
#include <string>
// Use ADLX namespace
using namespace adlx;
// ADLXHelper instance
// No outstanding interfaces from ADLX must exist when ADLX is destroyed.
// Use global variables to ensure validity of the interface.
static ADLXHelper g_ADLXHelp;
// Display anisotropic filtering support
void ShowSupport(const IADLX3DAnisotropicFilteringPtr& anisotropicFiltering);
// Get anisotropic filtering current state
void GetState(const IADLX3DAnisotropicFilteringPtr& anisotropicFiltering);
// Set anisotropic filtering state
void SetState(const IADLX3DAnisotropicFilteringPtr& anisotropicFiltering, int index);
// Menu
void MainMenu();
// Menu control
void MenuControl(const IADLX3DAnisotropicFilteringPtr& anisotropicFiltering);
// Wait for exit with error message
int WaitAndExit(const char* msg, const int retCode);
int main()
{
// Define return code
ADLX_RESULT res = ADLX_FAIL ;
// Initialize ADLX
res = g_ADLXHelp.Initialize();
if (ADLX_SUCCEEDED (res))
{
// Get GPUs
IADLXGPUListPtr gpus;
res = g_ADLXHelp.GetSystemServices()->GetGPUs(&gpus);
// Get 3DSettings service
IADLX3DSettingsServicesPtr d3dSettingSrv;
res = g_ADLXHelp.GetSystemServices()->Get3DSettingsServices(&d3dSettingSrv);
if (!gpus->Empty() && ADLX_SUCCEEDED (res))
{
// Get GPU interface
IADLXGPUPtr gpuInfo;
adlx_uint index = 0;
res = gpus->At(index, &gpuInfo);
// Get AnisotropicFilteringPtr interface
IADLX3DAnisotropicFilteringPtr anisotropicFiltering;
res = d3dSettingSrv->GetAnisotropicFiltering(gpuInfo, &anisotropicFiltering);
if (ADLX_SUCCEEDED (res))
{
MainMenu();
MenuControl(anisotropicFiltering);
}
}
else
{
std::cout << "Failed to get 3DSettings services: " << res << std::endl;
}
}
else
{
return WaitAndExit("ADLX initialization failed", 0);
}
// Destroy ADLX
res = g_ADLXHelp.Terminate();
std::cout << "Destroy ADLX res: " << res << std::endl;
// Pause to see the print out
system("pause");
return 0;
}
static const std::map<ADLX_ANISOTROPIC_FILTERING_LEVEL, const char*> levelMap =
{
{AF_LEVEL_INVALID , "Invalid"},
{AF_LEVEL_X2 , "2X"},
{AF_LEVEL_X4 , "4X"},
{AF_LEVEL_X8 , "8X"},
{AF_LEVEL_X16 , "16X"}};
void ShowSupport(const IADLX3DAnisotropicFilteringPtr& anisotropicFiltering)
{
adlx_bool supported = false;
ADLX_RESULT res = anisotropicFiltering->IsSupported(&supported);
if (ADLX_SUCCEEDED (res))
std::cout << "\\tIsSupported: " << supported << std::endl;
}
void GetState(const IADLX3DAnisotropicFilteringPtr& anisotropicFiltering)
{
adlx_bool enabled = false;
ADLX_RESULT res = anisotropicFiltering->IsEnabled(&enabled);
if (ADLX_SUCCEEDED (res))
std::cout << "\\tIsEnabled: " << enabled << std::endl;
ADLX_ANISOTROPIC_FILTERING_LEVEL level;
res = anisotropicFiltering->GetLevel(&level);
if (ADLX_SUCCEEDED (res))
std::cout << "\\tLevel: " << levelMap.find(level)->second << std::endl;
}
void SetState(const IADLX3DAnisotropicFilteringPtr& anisotropicFiltering, int index)
{
ADLX_RESULT res = ADLX_FAIL ;
res = anisotropicFiltering->SetEnabled(index == 0);
std::cout << "\\tReturn code is: " << res << "(0 means success) "<< std::endl;
if (index == 0 && ADLX_SUCCEEDED (res))
{
ADLX_ANISOTROPIC_FILTERING_LEVEL level;
res = anisotropicFiltering->GetLevel(&level);
if (ADLX_SUCCEEDED (res))
{
level = (level == AF_LEVEL_X2 ) ? AF_LEVEL_X4 : AF_LEVEL_X2 ;
res = anisotropicFiltering->SetLevel(level);
std::cout << "\\tSet level: " << levelMap.find(level)->second << "Return code is: " << res << " (0 means success) " << std::endl;
}
}
}
int WaitAndExit(const char* msg, const int retCode)
{
// Print out the message and pause to see it before returning the desired code
if (nullptr != msg)
std::cout << msg << std::endl;
system("pause");
return retCode;
}
void MainMenu()
{
std::cout << "\\tChoose from the following options:" << std::endl;
std::cout << "\\t->Press 1 to display anisotropic filtering support" << std::endl;
std::cout << "\\t->Press 2 to display current anisotropic filtering state" << std::endl;
std::cout << "\\t->Press 3 to enable and change anisotropic filtering levels" << std::endl;
std::cout << "\\t->Press 4 to disable anisotropic filtering" << std::endl;
std::cout << "\\t->Press Q/q to terminate the application" << std::endl;
std::cout << "\\t->Press M/m to display main menu options" << std::endl;
}
void MenuControl(const IADLX3DAnisotropicFilteringPtr& anisotropicFiltering)
{
int num = 0;
while ((num = getchar()) != 'q' && num != 'Q')
{
switch (num)
{
// Display anisotropic filtering support
case '1':
ShowSupport(anisotropicFiltering);
break;
// Display current anisotropic filtering state
case '2':
GetState(anisotropicFiltering);
break;
// Enable and change anisotropic filtering levels
case '3':
case '4':
SetState(anisotropicFiltering, num - '3');
break;
// Display menu options
case 'm':
case 'M':
MainMenu();
break;
default:
break;
}
}
}
