For GBM and Wayland, we guessed as well. But instead of just writing to the buffer, the GPU driver does a copy of the previous (N-1) buffer, because we specified the surface with the attribute "EGL_SWAP_BEHAVIOR" set to "EGL_BUFFER_PRESERVED". ...
In my project, get_platform_display_ext get failed because egl client extensions mismatch。 egl client extensions: EGL_EXT_client_extensions EGL_EXT_platform_base EGL_KHR_client_get_all_proc_addresses EGL_KHR_platform_gbm EGL_KHR_platform_wayland EGL_EXT_platform_wayland Contributor tronical com...
https://github.com/wayland-project/weston/blob/master/clients/simple-dmabuf-egl.c https://gstreamer.freedesktop.org/data/events/gstreamer-conference/2012/omap-dmabuf-gstcon2012.pdf
菜鸟笔记--egl: Undefined reference to `gbm_format_get_name‘ when linking with libEGL 介绍 在编译weston时,遇到错误 谷歌了一下也没有结果。后来发现libEGL.so隶属于mesa库文件,在github上查找 https://gitlab.freedesktop.org/mesa/mesa.git 发现在mesa的源代码里,gbm_format_get_name定义在src/gbm/main...
1回答 基于GBM的EGLDisplay 、、由于我不会实际绘制,所以我希望结合GBM平台使用Pbuffers。assert.h> #include <unistd.h> #include <EGL/eglext.h> EGLDisplay dpy = eglGetDisplay( gbm</ 浏览5提问于2013-12-28得票数 10 回答已采纳 1回答 在一个图中绘制gbm.step()的多个运行 、、 我已经运行了一组...
基于EGL/GBM/DRM的opengles开发示例,可以作为学习的起点;GBM/DRM显示可应用在没有xserver的环境,嵌入式开发可能会用到
通过下面的代码 建立了一个OpenGL Context,可以绘图int fd;fd = open("/dev/dri/card0", O_RDWR);structgbm_device *gbm;gbm=gbm_create_device(fd);EGLDisplay dpy;dpy = eglGetDisplay(gbm);EGLContext EGL 参考资料 github 原创 proware 2023-01-31 00:20:30 ...
We are almost there, but one last detail remains. If we try to run Chromium we will get an error message informing us that EGL initialization failed. The reason is that, when using Ozone-GBM, the EGLDisplay is created using EGL_DEFAULT_DISPLAY as the native display argument, under the as...
它能够把一个同步对象转化为一个文件描写叙述符(反过来,eglCreateSyncKHR()能够把文件描写叙述符转成同步对象)。这个扩展相当于让CPU中有了GPU中同步对象的句柄,文件描写叙述符能够在进程间传递(通过binder或domain socket等IPC机制),这就为多进程间的同步提供了基础。
void*egl_dpy,void*egl_img, uint32_twidth,uint32_theight, uint32_tusage); uint32_t gbm_bo_get_width(structgbm_bo*bo); uint32_t gbm_bo_get_height(structgbm_bo*bo); uint32_t gbm_bo_get_pitch(structgbm_bo*bo); uniongbm_bo_handle ...