[Piglit] FW: [PATCH] fixed oes compressed etc2 texture miptree failure

[Brian Paul]

On 04/27/2014 12:45 PM, Ian Romanick wrote:
> On 04/24/2014 03:41 AM, Guo, Johney wrote:
>> See tests/util/piglit-framework-gl/piglit_glut_framework.c:84:
>> default_reshape_func(int w, int h)
>> {
>> 	if (piglit_automatic &&
>> 	    (w != piglit_width ||
>> 	     h != piglit_height)) {
>> 		printf("Got spurious window resize in automatic run "
>> 		       "(%d,%d to %d,%d)\n", piglit_width, piglit_height, w, h);
>> 		piglit_report_result(PIGLIT_WARN);
>> 	}
>>
>> 	piglit_width = w;
>> 	piglit_height = h;
>>
>> 	glViewport(0, 0, w, h);
>> }
>>
>> My OS is win8. If piglit_width < 160, window manager will force it to 160.
>
> There was a similar issue a few years ago with Win7.  I believe Brian
> Paul fixed this by modifying the framework to enforce a minimum window
> size depending on the operating system.  It's better to fix this issue
> once for all tests than change each individual test.  This is especially
> true since we may add more tests with too-small window sizes (since
> we're not on Windows).
>
> Brian, does that sound right?

Basically, I changed the default window size to be 150x150 because on 
Windows (7 and maybe XP) if the window size was less than 116 pixels 
wide, it would get bumped up to 116 and that would cause the test to fail.

I did a quick search of git history and found this one:

commit 1894ef34c5e3cc0daefd1241b31a2b2ae32c3347
Author: Brian Paul <brianp at vmware.com>
Date:   Fri Apr 5 12:32:46 2013 -0600

     lodbias: increase window size to fix test on Windows

     Before, the 96x96 window got bumped up to 116x96 by Windows and we
     saw a "Got spurious window resize in automatic run" message and the
     test reported "warn".

So the rule of thumb now is don't set the config.window_width, height 
vars unless you really have to, and be prepared for window resizes if 
you do.

I've rarely tested Windows 8 so I wasn't aware of any problems there 
with the window size.  If width=160 is the new magic number, we may have 
to bump up config.window_width, height again.

Johney, can you try bumping up the default window size in 
tests/util/piglit-framework-gl.h and see if that solve the problem?

I can likewise do that here and see if there's any unexpected 
regressions from changing the window size.


>
>> Many piglit tests have set configure width as 150,  then they will all report as "warn".
>> At least the following,
>> $ grep -Irne "\<150\>" tests | grep width
>> tests/fbo/fbo-blit-d24s8.c:45:  config.window_width = 150;
>> tests/fbo/fbo-blit.c:43:        config.window_width = 150;
>> tests/fbo/fbo-copypix.c:40:     config.window_width = 150;
>> tests/fbo/fbo-readdrawpix.c:40: config.window_width = 150;
>> tests/spec/arb_es2_compatibility/arb_es2_compatibility-depthrangef.c:36:        config.window_width = 150;
>> tests/texturing/incomplete-texture.c:38:        config.window_width = 150;
>> tests/texturing/shaders/textureSize.c:55:       config.window_width = 150;
>> tests/texturing/texsubimage.c:42:       config.window_width = 150;
>> tests/util/piglit-framework-gl.h:272:                config.window_width = 150;
>>
>> What is more, 	glViewport(0, 0, w, h)  will change the viewport to (w,h),  so in each glut display() function, glViewPort() should be recalled for validity
>


The last time I bumped up the default window size I had to fix a bunch 
of tests that had hard-coded dimensions.  Looks like there's a few more 
to tend to...

-Brian