On 08/01/2017 02:03 AM, Matt Turner wrote:
On Mon, Jul 31, 2017 at 12:43 PM, Samuel Pitoiset
<[email protected]> wrote:
Fixes: ddc32537d6 ("mesa: clamp viewport values only once when using 
glViewport()")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101981
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101989
Signed-off-by: Samuel Pitoiset <[email protected]>

I don't understand how this regression happened. I see in the results
of your Jenkins build #57 that
ES3-CTS.functional.state_query.integers.viewport_getfloat fails on all
platforms. Do we need to improve something in the CI?

No, CI is working fine, I have just bypassed it for this patch, and it wasn't a great idea. Sorry again for this useless regression.


---
  src/mesa/main/viewport.c | 7 ++++---
  1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/mesa/main/viewport.c b/src/mesa/main/viewport.c
index 3dce320d1d..fc384909e6 100644
--- a/src/mesa/main/viewport.c
+++ b/src/mesa/main/viewport.c
@@ -94,9 +94,10 @@ static void
  viewport(struct gl_context *ctx, GLint x, GLint y, GLsizei width,
           GLsizei height)
  {
+   struct gl_viewport_inputs input = { x, y, width, height };
+
     /* Clamp the viewport to the implementation dependent values. */
-   clamp_viewport(ctx, (GLfloat *)&x, (GLfloat *)&y,
-                  (GLfloat *)&width, (GLfloat *)&height);

As an aside, this is violating C's aliasing rules. This pattern isn't
allowed in Mesa since commit 88ad8c7dedb87d92a5bed0868f108076185ec089

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