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-rw-r--r--src/mesa/main/fbobject.c23
1 files changed, 23 insertions, 0 deletions
diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index 8290ea94dfc..87c33be7854 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -4691,6 +4691,29 @@ discard_framebuffer(struct gl_context *ctx, struct gl_framebuffer *fb,
if (!att)
continue;
+ /* If we're asked to invalidate just depth or just stencil, but the
+ * attachment is packed depth/stencil, then we can only use
+ * Driver.DiscardFramebuffer if the attachments list includes both depth
+ * and stencil and they both point at the same renderbuffer.
+ */
+ if ((attachments[i] == GL_DEPTH_ATTACHMENT ||
+ attachments[i] == GL_STENCIL_ATTACHMENT) &&
+ (!att->Renderbuffer ||
+ att->Renderbuffer->_BaseFormat == GL_DEPTH_STENCIL)) {
+ GLenum other_format = (attachments[i] == GL_DEPTH_ATTACHMENT ?
+ GL_STENCIL_ATTACHMENT : GL_DEPTH_ATTACHMENT);
+ bool has_both = false;
+ for (int j = 0; j < numAttachments; j++) {
+ if (attachments[j] == other_format)
+ has_both = true;
+ break;
+ }
+
+ if (fb->Attachment[BUFFER_DEPTH].Renderbuffer !=
+ fb->Attachment[BUFFER_STENCIL].Renderbuffer || !has_both)
+ continue;
+ }
+
ctx->Driver.DiscardFramebuffer(ctx, fb, att);
}
}