diff options
| -rw-r--r-- | docs/env_vars.md | 2 | ||||
| -rw-r--r-- | render/egl.c | 17 |
2 files changed, 15 insertions, 4 deletions
diff --git a/docs/env_vars.md b/docs/env_vars.md index 62472783..39daf9fd 100644 --- a/docs/env_vars.md +++ b/docs/env_vars.md @@ -12,6 +12,8 @@ wlroots reads these environment variables renderers: gles2, pixman, vulkan) * *WLR_RENDER_DRM_DEVICE*: specifies the DRM node to use for hardware-accelerated renderers. +* *WLR_EGL_NO_MODIFIERS*: set to 1 to disable format modifiers in EGL, this can + be used to understand and work around driver bugs. ## DRM backend diff --git a/render/egl.c b/render/egl.c index 2ba57a92..e3839c7d 100644 --- a/render/egl.c +++ b/render/egl.c @@ -107,6 +107,11 @@ static void log_modifier(uint64_t modifier, bool external_only) { } static void init_dmabuf_formats(struct wlr_egl *egl) { + bool no_modifiers = env_parse_bool("WLR_EGL_NO_MODIFIERS"); + if (no_modifiers) { + wlr_log(WLR_INFO, "WLR_EGL_NO_MODIFIERS set, disabling modifiers for EGL"); + } + int *formats; int formats_len = get_egl_dmabuf_formats(egl, &formats); if (formats_len < 0) { @@ -121,8 +126,10 @@ static void init_dmabuf_formats(struct wlr_egl *egl) { uint64_t *modifiers; EGLBoolean *external_only; - int modifiers_len = - get_egl_dmabuf_modifiers(egl, fmt, &modifiers, &external_only); + int modifiers_len = 0; + if (!no_modifiers) { + modifiers_len = get_egl_dmabuf_modifiers(egl, fmt, &modifiers, &external_only); + } if (modifiers_len < 0) { continue; } @@ -174,8 +181,10 @@ static void init_dmabuf_formats(struct wlr_egl *egl) { free(formats); egl->has_modifiers = has_modifiers; - wlr_log(WLR_DEBUG, "EGL DMA-BUF format modifiers %s", - has_modifiers ? "supported" : "unsupported"); + if (!no_modifiers) { + wlr_log(WLR_DEBUG, "EGL DMA-BUF format modifiers %s", + has_modifiers ? "supported" : "unsupported"); + } } static struct wlr_egl *egl_create(void) { |