Tessellation
Demonstrates how to access tessellation options, and perform related testing when programming with ADLX.
Command Prompts
| Command Prompt | Description |
|---|---|
| 1 | Display tessellation support |
| 2 | Get GPU tessellation state, mode, and level |
| 3 | Set tesellation mode: AMD optimized |
| 4 | Set tesellation mode: Use application settings |
| 5 | Set tesellation mode: Override application settings |
| 6 | Set tesellation level |
| M/m | Display the main menu |
| Q/q | Quit the application |
Sample Path
/Samples/C/3DGraphics/Tessellation
Code
Copied!
//
// Copyright (c) 2021 - 2025 Advanced Micro Devices, Inc. All rights reserved.
//
//-------------------------------------------------------------------------------------------------
#include "SDK/ADLXHelper/Windows/C/ADLXHelper.h"
#include "SDK/Include/I3DSettings.h"
// Display tessellation support
void ShowSupport(IADLX3DTessellation* tessellation);
// Get current tessellation state
void GetState(IADLX3DTessellation* tessellation);
// Set tessellation mode
void SetMode(IADLX3DTessellation* tessellation, int index);
// Set tessellation level
void SetLevel(IADLX3DTessellation* tessellation);
// Menu
void MainMenu();
// Menu control
void MenuControl(IADLX3DTessellation* tessellation);
int main()
{
// Define return code
ADLX_RESULT res = ADLX_FAIL ;
// Initialize ADLX
res = ADLXHelper_Initialize();
if (ADLX_SUCCEEDED (res))
{
// Get system services
IADLXSystem* sys = ADLXHelper_GetSystemServices();
// Get GPUs
IADLXGPUList* gpus = NULL;
res = sys->pVtbl->GetGPUs(sys, &gpus);
// Get 3DSettings service
IADLX3DSettingsServices* d3dSettingSrv = NULL;
res = sys->pVtbl->Get3DSettingsServices(sys, &d3dSettingSrv);
if (ADLX_SUCCEEDED (res))
{
// Get GPU interface
IADLXGPU* gpu = NULL;
adlx_uint index = 0;
res = gpus->pVtbl->At_GPUList(gpus, index, &gpu);
// Get the IADLX3DTessellation interface
IADLX3DTessellation* tessellation = NULL;
res = d3dSettingSrv->pVtbl->GetTessellation(d3dSettingSrv, gpu, &tessellation);
if (ADLX_SUCCEEDED (res))
{
MainMenu();
MenuControl(tessellation);
}
// Release the IADLX3DTessellation interface
if (tessellation != NULL)
{
tessellation->pVtbl->Release(tessellation);
tessellation = NULL;
}
// Release the GPU interface
if (gpu != NULL)
{
gpu->pVtbl->Release(gpu);
gpu = NULL;
}
}
else
{
printf("Failed to get 3DSettings services\\n");
}
// Release the 3DSettingsService interface
if (d3dSettingSrv != NULL)
{
d3dSettingSrv->pVtbl->Release(d3dSettingSrv);
d3dSettingSrv = NULL;
}
// Release the GPUs list interface
if (gpus != NULL)
{
gpus->pVtbl->Release(gpus);
gpus = NULL;
}
}
else
{
printf("ADLX initialization failed\\n");
return 0;
}
// Destroy ADLX
res = ADLXHelper_Terminate();
printf("Destroy ADLX res: %d\\n", res);
// Pause to see the print out
system("pause");
return 0;
}
static char* getModeStr(ADLX_TESSELLATION_MODE mode)
{
switch (mode)
{
case T_MODE_AMD_OPTIMIZED :
return "AMD optimized";
case T_MODE_USE_APP_SETTINGS :
return "Use application settings";
case T_MODE_OVERRIDE_APP_SETTINGS :
return "Override application settings";
default:
return "UNKNOWN";
}
};
static char* getLevelStr(ADLX_TESSELLATION_LEVEL level)
{
switch (level)
{
case T_LEVEL_OFF :
return "Off";
case T_LEVEL_2X :
return "2X";
case T_LEVEL_4X :
return "4X";
case T_LEVEL_6X :
return "6X";
case T_LEVEL_8X :
return "8X";
case T_LEVEL_16X :
return "16X";
case T_LEVEL_32X :
return "32X";
case T_LEVEL_64X :
return "64X";
default:
return "UNKNOWN";
}
};
void ShowSupport(IADLX3DTessellation* tessellation)
{
adlx_bool supported = false;
ADLX_RESULT res = tessellation->pVtbl->IsSupported(tessellation, &supported);
printf("\\tIsSupported: %d, return code is: %d(0 means success)\\n", supported, res);
}
void GetState(IADLX3DTessellation* tessellation)
{
ADLX_TESSELLATION_MODE mode;
ADLX_RESULT res = tessellation->pVtbl->GetMode(tessellation, &mode);
printf("\\tMode: %s, return code is: %d(0 means success)\\n", getModeStr(mode), res);
ADLX_TESSELLATION_LEVEL level;
res = tessellation->pVtbl->GetLevel(tessellation, &level);
printf("\\tLevel: %s, return code is: %d(0 means success)\\n", getLevelStr(level), res);
}
void SetMode(IADLX3DTessellation* tessellation, int index)
{
ADLX_RESULT res = ADLX_FAIL ;
ADLX_TESSELLATION_MODE mode = T_MODE_AMD_OPTIMIZED ;
mode = (ADLX_TESSELLATION_MODE )(mode + index);
res = tessellation->pVtbl->SetMode(tessellation, mode);
printf("\\tReturn code is: %d (0 means success)\\n", res);
}
void SetLevel(IADLX3DTessellation* tessellation)
{
ADLX_TESSELLATION_LEVEL level;
tessellation->pVtbl->GetLevel(tessellation, &level);
level = (level == T_LEVEL_2X ) ? T_LEVEL_4X : T_LEVEL_2X ;
ADLX_RESULT res = tessellation->pVtbl->SetLevel(tessellation, level);
printf("\\tSet level: %s, res is: %d\\n", getLevelStr(level), res);
}
void MainMenu()
{
printf("\\tChoose from the following options:\\n");
printf("\\t->Press 1 to display tessellation support\\n");
printf("\\t->Press 2 to get tessellation state\\n");
printf("\\t->Press 3 to set tessellation mode: AMD optimized\\n");
printf("\\t->Press 4 to set tessellation mode: Use application settings\\n");
printf("\\t->Press 5 to set tessellation mode: Override application settings\\n");
printf("\\t->Press 6 to set tessellation level\\n");
printf("\\t->Press Q/q to quit the application\\n");
printf("\\t->Press M/m to display menu options\\n");
}
void MenuControl(IADLX3DTessellation* tessellation)
{
int num = 0;
while ((num = getchar()) != 'q' && num != 'Q')
{
switch (num)
{
// Display tessellation support
case '1':
ShowSupport(tessellation);
break;
// Get and display current tessellation state
case '2':
GetState(tessellation);
break;
// Set tessellation mode
case '3':
case '4':
case '5':
SetMode(tessellation, num - '3');
break;
// Set anti-aliasing level
case '6':
SetLevel(tessellation);
break;
// Display menu options
case 'm':
case 'M':
MainMenu();
break;
default:
break;
}
}
}
