“Vivante GCNANO GPU overview”的版本间的差异

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===Additional information===
 
===Additional information===
* STMicroelectronics provides '''debug Vivante Gcnano libraries''' according to any baseline version, '''allowing customers to debug/analyze their applications''' with the '''Vivante Tool Kit (VTK)'''. Please have a look to the article [[How to debug the Gcnano GPU with VTK]] for more details.
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* 意法半导体(ST)根据任何基准版本提供'''调试Vivante Gcnano库''''''允许客户使用Vivante工具套件(VTK)'''对应用进行调试/分析。 请查看文章 [[How to debug the Gcnano GPU with VTK]]了解更多详细信息。
  
 
==Useful links==
 
==Useful links==

2020年11月10日 (二) 09:46的版本




Introduction

STMicroelectronics STM32MP1平台具有基于Vivante Gcnano GPUOpenGLES硬件IP。.
您可以在Vivante GCNANO网页上找到更多信息。[1][2]

Features

Supported open standards

Vivante Gcnano GPU 与以下Khronos的开放标准3D图形[3]:
  • OpenGLES 2.0
  • OpenGLES 1.1
  • OpenVG 1.1
  • EGL 1.4

Vivante Gcnano GPU configuration

  • Core Clock 264MHz
  • Shader Clock 264MHz
  • Pixel Rate 264 MPixel/sec
  • Triangle Rate 26.4 M tri/sec
  • Vertex rate 66 M vtx/sec
  • 1 shader core (Vec 4)
  • 2.112 GFLOPS shader

GPU softwares

GPU software structure.png

Vivante Gcnano GPU userland libraries

除非客户与Vivante签署了保密协议(如果需要这些库源代码,请联系Vivante)。 Gcnano库(用户)是:

  • OpenGLES 1.1 library
  • OpenGLES 2.0 library
  • EGL 1.4 library
  • gbm library
  • GAL library
  • GLSLC and VSC libraries
  • VDK library

Vivante Gcnano kernel driver

Source code is available for all customers 在所有OpenSTLinux基准中。

要访问源代码,请执行以下操作:

devtool修改gcnano-driver-stm32mp

然后在此处下载源代码:

  • <your_view>/build*/workspace/sources/gcnano-driver-stm32mp


请参阅 OpenEmbedded - devtool 以了解有关devtool的更多信息。

Additional information

  • 意法半导体(ST)根据任何基准版本提供调试Vivante Gcnano库允许客户使用Vivante工具套件(VTK)对应用进行调试/分析。 请查看文章 如何使用VTK调试Gcnano GPU了解更多详细信息。

Useful links

EGL

Supported EGL backend

From VIVANTE_GAL3D_Unified_Src_drv_6.1.x, Vivante delivery, Vivante Gcnano libraries support both DRM/GBM and Wayland backends.
Refer to EGL backends article for details.

EGL texture 0-copy

Gcnano supports the EGL texture 0-copy extension.

EGL texture 0-copy extension allows an EGL application to share a texture buffer with the GPU by avoiding to copy the texture from application to the GPU.

Refer to EGL texture 0-copy article for more details.

Graphic Benchmarks

Please refer to the How to test and benchmark OpenGLES article.

Debugging

Please have a look to following articles: