From 4f538c3f99b25dc96cd20314ce7785fd4d333be1 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Thu, 26 Oct 2017 11:44:09 -0700 Subject: [PATCH] mesa: Accept GL_BACK in get_fb0_attachment with ARB_ES3_1_compatibility. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit According to the ARB_ES3_1_compatibility specification, glGetFramebufferAttachmentParameteriv is supposed to accept BACK, and it behaves exactly like BACK_LEFT. Fixes a GL error in GFXBench 5 Aztec Ruins. Cc: "17.3 17.2" Reviewed-by: Tapani Pälli --- src/mesa/main/fbobject.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c index 71e91f9301f..9a2c7ebbcf7 100644 --- a/src/mesa/main/fbobject.c +++ b/src/mesa/main/fbobject.c @@ -330,6 +330,15 @@ get_fb0_attachment(struct gl_context *ctx, struct gl_framebuffer *fb, return &fb->Attachment[BUFFER_BACK_LEFT]; case GL_BACK_RIGHT: return &fb->Attachment[BUFFER_BACK_RIGHT]; + case GL_BACK: + /* The ARB_ES3_1_compatibility spec says: + * + * "Since this command can only query a single framebuffer + * attachment, BACK is equivalent to BACK_LEFT." + */ + if (ctx->Extensions.ARB_ES3_1_compatibility) + return &fb->Attachment[BUFFER_BACK_LEFT]; + return NULL; case GL_AUX0: if (fb->Visual.numAuxBuffers == 1) { return &fb->Attachment[BUFFER_AUX0]; -- 2.30.2