Linux/TDA2PXEVM: OpenGL ES API support

user5312037

Genius 4320 points

Part Number: TDA2PXEVM

Tool/software: Linux

Hello:

Did the TI OpenGL ES support the API like "glTexDirectVIV"

my code is

#define AVM_GPU_FUNC_SET(_val, type, _str)    \
    if (_val == NULL)    \
    {   \
       _val = (type)   \
            eglGetProcAddress(_str);    \
        if (_val == NULL)    \
        {   \
            printf("AvmGpu::avm_gpu_env_init.Required[%s] extension not supported.\n",_str);  \
            return 1;   \
        }   \
    }

and the output is :

AvmGpu::avm_gpu_env_init.Required[glTexDirectVIV] extension not supported.
AvmGpu::avm_gpu_env_init.Required[glTexDirectVIVMap] extension not supported.
AvmGpu::avm_gpu_env_init.Required[glTexDirectInvalidateVIV] extension not supported.

over 7 years ago

0 Anand Balagopalakrishnan over 7 years ago

TI__Expert 5130 points

Hi,

glTexDirectVIV is a custom extension meant for Vivante GPUs.

TI supports a more standard video streaming extension called eglImageKHR. This is a Khronos standard and we have examples in VisionSDK:
www.khronos.org/.../EGL_KHR_image_base.txt

Regards,
Anand

0 user5312037 over 7 years ago in reply to Anand Balagopalakrishnan

Genius 4320 points

Hello Anand:

Can you show the path of VisionSDK include such examples, and BTW is that a quick way to map above 3 API to TI standard?

0 Anand Balagopalakrishnan over 7 years ago in reply to user5312037

TI__Expert 5130 points

Hi,

You can refer to the 3D Surround View demo example included in VisionSDK.

As mentioned, the eglImage is a Khronos industry standard API and not specific to TI. I don't know how the Vivante proprietary APIs map to the standard APIs.

You can go through the eglImage usage in 3D Surround View and let us know if you have any questions.

Regards,
Anand

0 Shiju Sivasankaran over 7 years ago in reply to Anand Balagopalakrishnan

TI__Genius 13395 points

Hi
3D SRV demo App data flow can be found under \vision_sdk\apps\src\hlos\adas\src\usecases\lvds_vip_multi_cam_3d_srv
3D SRV SGX modules under - \vision_sdk\apps\src\hlos\modules\sgx3Dsrv
3D SRV SGX Algo under - \vision_sdk\apps\src\hlos\modules\sgxRenderUtils

Regards, Shiju

0 user5312037 over 7 years ago in reply to Shiju Sivasankaran

Genius 4320 points

Hello all:

@Anand Balagopalakrishnan

I'm look at the source code under "\vision_sdk\apps\src\hlos\modules\sgxRenderUtils which the standalone.cxx has the similar usage of opengl.

The "glTexDirectVIVMap"

Overview
Create a texture with direct access support. This is useful when an application desires to use the same texture over and over
while frequently updating its content. It could also be used for mapping live video to a texture. A video decoder could write its
result directly to the texture and then the texture could be directly rendered onto a 3D shape. glTexDirectVIVMap is similar
to glTexDirectVIV. The only difference is that it has two inputs, “Logical” and “Physical,” which support mapping a user
space memory or a physical address into the texture surface.

is there an alternative API to map the memory to texture ?

Thanks.

0 Anand Balagopalakrishnan over 7 years ago in reply to user5312037

TI__Expert 5130 points

Hi,

I am not clear on the question. The example pointed by Shiju shows how to use eglCreateImageKHR. As mentioned earlier, this is the Khronos standard API for mapping video to a texture. Looking at the description, it provides the same features as glTexDirectVIVMap.

Please go through the example and let us know if you have specific questions on its usage.

Regards,
Anand

0 user5312037 over 7 years ago in reply to Anand Balagopalakrishnan

Genius 4320 points

Hi Anand：
Thanks, we will go through the example first.

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Linux/TDA2PXEVM: OpenGL ES API support