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[client] egl: detect the NVIDIA driver and disable DMA support

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DMA suport for NVIDIA is advertised as available by the presense of the
extension `EGL_EXT_image_dma_buf_import`, however it is completely
broken. Until this is fixed refuse to use DMA support even if VM->VM
support is possible.

See: https://forums.developer.nvidia.com/t/egl-ext-image-dma-buf-import-broken-egl-bad-alloc-with-tons-of-free-ram/165552
This commit is contained in:
Geoffrey McRae 2021-01-09 21:25:41 +11:00
parent 21ba14f629
commit 19db67cfe5
1 changed files with 16 additions and 2 deletions
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18
client/renderers/EGL/egl.c
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@ -565,16 +565,30 @@ bool egl_render_startup(void * opaque, SDL_Window * window)
eglMakeCurrent(this->display, this->surface, this->surface, this->context);
const char *client_exts = eglQueryString(this->display, EGL_EXTENSIONS);
const char *vendor = (const char *)glGetString(GL_VENDOR);
DEBUG_INFO("EGL : %d.%d", maj, min);
DEBUG_INFO("Vendor : %s", glGetString(GL_VENDOR ));
DEBUG_INFO("Vendor : %s", vendor);
DEBUG_INFO("Renderer : %s", glGetString(GL_RENDERER));
DEBUG_INFO("Version : %s", glGetString(GL_VERSION ));
DEBUG_INFO("EGL APIs : %s", eglQueryString(this->display, EGL_CLIENT_APIS));
DEBUG_INFO("Extensions: %s", client_exts);
if (strstr(client_exts, "EGL_EXT_image_dma_buf_import") != NULL)
this->dmaSupport = true;
{
/*
* As of version 455.45.01 NVidia started advertising support for this
* feature, however even on the latest version 460.27.04 this is still
* broken and does not work, until this is fixed and we have way to detect
* this early just disable dma for all NVIDIA devices.
*
* ref: https://forums.developer.nvidia.com/t/egl-ext-image-dma-buf-import-broken-egl-bad-alloc-with-tons-of-free-ram/165552
*/
if (strstr(vendor, "NVIDIA") != NULL)
DEBUG_WARN("NVIDIA driver detected, ignoring broken DMA support");
else
this->dmaSupport = true;
}
eglSwapInterval(this->display, this->opt.vsync ? 1 : 0);