dri: Add KHR_no_error DRI extension

This basic extension allows usage of the __DRI_CTX_FLAG_NO_ERROR flag.
This includes support code for classic Mesa drivers to switch on the
no-error mode if the flag is set.

v2: Move to common DRI code.

Reviewed-by: Marek Olšák <[email protected]>

3 files changed, 5 insertions, 1 deletions

diff --git a/src/gallium/state_trackers/dri/dri2.c b/src/gallium/state_trackers/dri/dri2.c
index e20b2c07536..787949ec396 100644
--- a/src/gallium/state_trackers/dri/dri2.c
+++ b/src/gallium/state_trackers/dri/dri2.c
@@ -1995,6 +1995,7 @@ static const __DRIextension *dri_screen_extensions[] = {
    &dri2ThrottleExtension.base,
    &dri2FenceExtension.base,
    &dri2InteropExtension.base,
+   &dri2NoErrorExtension.base,
    NULL
 };
 
@@ -2008,6 +2009,7 @@ static const __DRIextension *dri_robust_screen_extensions[] = {
    &dri2FenceExtension.base,
    &dri2InteropExtension.base,
    &dri2Robustness.base,
+   &dri2NoErrorExtension.base,
    NULL
 };
 
diff --git a/src/gallium/state_trackers/dri/dri_context.c b/src/gallium/state_trackers/dri/dri_context.c
index ec555e44d74..e25f186deb8 100644
--- a/src/gallium/state_trackers/dri/dri_context.c
+++ b/src/gallium/state_trackers/dri/dri_context.c
@@ -57,7 +57,8 @@ dri_create_context(gl_api api, const struct gl_config * visual,
    struct st_context_attribs attribs;
    enum st_context_error ctx_err = 0;
    unsigned allowed_flags = __DRI_CTX_FLAG_DEBUG |
-                            __DRI_CTX_FLAG_FORWARD_COMPATIBLE;
+                            __DRI_CTX_FLAG_FORWARD_COMPATIBLE |
+                            __DRI_CTX_FLAG_NO_ERROR;
    const __DRIbackgroundCallableExtension *backgroundCallable =
       screen->sPriv->dri2.backgroundCallable;
 
diff --git a/src/gallium/state_trackers/dri/drisw.c b/src/gallium/state_trackers/dri/drisw.c
index 189d61c4cb6..ac4095618c0 100644
--- a/src/gallium/state_trackers/dri/drisw.c
+++ b/src/gallium/state_trackers/dri/drisw.c
@@ -371,6 +371,7 @@ static const __DRIextension *drisw_screen_extensions[] = {
    &dri2RendererQueryExtension.base,
    &dri2ConfigQueryExtension.base,
    &dri2FenceExtension.base,
+   &dri2NoErrorExtension.base,
    NULL
 };