diff options
Diffstat (limited to 'src/mesa/drivers/dri/common/dri_util.c')
| -rw-r--r-- | src/mesa/drivers/dri/common/dri_util.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c index a6545084e31..79cb0506dd8 100644 --- a/src/mesa/drivers/dri/common/dri_util.c +++ b/src/mesa/drivers/dri/common/dri_util.c @@ -376,11 +376,32 @@ driCreateContextAttribs(__DRIscreen *screen, int api, * EGL_CONTEXT_FLAGS_KHR, then a <debug context> will be created. * [...] This bit is supported for OpenGL and OpenGL ES contexts. * - * None of the other flags have any meaning in an ES context, so this seems safe. + * No other EGL_CONTEXT_OPENGL_*_BIT is legal for an ES context. + * + * However, Mesa's EGL layer translates the context attribute + * EGL_CONTEXT_OPENGL_ROBUST_ACCESS into the context flag + * __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS. That attribute is legal for ES + * (with EGL 1.5 or EGL_EXT_create_context_robustness) and GL (only with + * EGL 1.5). + * + * From the EGL_EXT_create_context_robustness spec: + * + * This extension is written against the OpenGL ES 2.0 Specification + * but can apply to OpenGL ES 1.1 and up. + * + * From the EGL 1.5 (2014.08.27) spec, p55: + * + * If the EGL_CONTEXT_OPENGL_ROBUST_ACCESS attribute is set to + * EGL_TRUE, a context supporting robust buffer access will be created. + * OpenGL contexts must support the GL_ARB_robustness extension, or + * equivalent core API functional- ity. OpenGL ES contexts must support + * the GL_EXT_robustness extension, or equivalent core API + * functionality. */ if (mesa_api != API_OPENGL_COMPAT && mesa_api != API_OPENGL_CORE - && (flags & ~__DRI_CTX_FLAG_DEBUG)) { + && (flags & ~(__DRI_CTX_FLAG_DEBUG | + __DRI_CTX_FLAG_ROBUST_BUFFER_ACCESS))) { *error = __DRI_CTX_ERROR_BAD_FLAG; return NULL; } |