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Diffstat (limited to 'src/mesa/drivers/x11/xm_tri.c')
-rw-r--r--src/mesa/drivers/x11/xm_tri.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/src/mesa/drivers/x11/xm_tri.c b/src/mesa/drivers/x11/xm_tri.c
index 77fceec194c..158f284a5e2 100644
--- a/src/mesa/drivers/x11/xm_tri.c
+++ b/src/mesa/drivers/x11/xm_tri.c
@@ -1443,6 +1443,46 @@ do { \
#endif
+#if 0
+GLboolean xmesa_get_cbuf_details( GLcontext *ctx,
+ void **ptr,
+ GLuint *cpp,
+ GLint *stride,
+ GLuint *format )
+{
+ XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct gl_framebuffer *fb = ctx->DrawBuffer;
+ struct gl_renderbuffer *crb = fb->_ColorDrawBuffers[0][0];
+ struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(crb->Wrapped);
+
+ *ptr = crb->GetPointer(ctx, crb, 0, 0);
+ *stride = ((GLubyte *)crb->GetPointer(ctx, crb, 0, 1) -
+ (GLubyte *)crb->GetPointer(ctx, crb, 0, 0));
+
+ if (!ptr)
+ goto bad;
+
+ switch (xmesa->pixelformat) {
+ case PF_8A8B8G8R:
+ case PF_8A8R8G8B:
+ *format = 1; /* whatever */
+ *cpp = 4;
+ break;
+ default:
+ goto bad;
+ }
+
+ return GL_TRUE;
+
+ bad:
+ *ptr = NULL;
+ *stride = 0;
+ *format = 0;
+ return GL_FALSE;
+}
+#endif
+
+
/**
* Return pointer to line drawing function, or NULL if we should use a
* swrast fallback.