[Pixman] alphamap and blitters-test fail

[Dave McCooey]

Hi Siarhei,

I am building on an old PowerPC G4 Mac.

The compiler is gcc 4.0.1 (Apple build 5370).

I reduced the optimization to -O1, and all tests pass now.

Thank you for the help.

Best regards,
Dave McCooey

On Jul 11, 2014, at 11:19 AM, Siarhei Siamashka wrote:

> On Tue, 08 Jul 2014 12:30:15 -0700
> Dave McCooey <dmccooey at mac.com> wrote:
>
>> System:  Dual PowerPC G4 Macintosh, Mac OS X version 10.4.11
>>
>> ========================================
>>     pixman 0.32.6: test/test-suite.log
>> ========================================
>>
>> # TOTAL: 27
>> # PASS:  25
>> # SKIP:  0
>> # XFAIL: 0
>> # FAIL:  2
>> # XPASS: 0
>> # ERROR: 0
>>
>> .. contents:: :depth: 2
>>
>> FAIL: alphamap
>> ==============
>>
>>
>> Wrong alpha value at (14, 34). Should be 0xdf; got 0xff. Source was
>> 0xdf, original dest was 0x0
>> src: a2r10g10b10, alpha: a8, origin 0 0
>> dst: a8r8g8b8, alpha: a8, origin: 0 0
>>
>>
>> FAIL: blitters-test
>> ===================
>>
>> blitters test failed! (checksum=97F287CB, expected E0A07495)
>
> Just tried to build pixman 0.32.6 on my playstation3 and it passes
> tests without problems.
>
> Can you provide more details about your compiler? Also is it a 32-bit
> system?
>
> Does reducing the level of optimizations help? This can be done by
> setting the CFLAGS environment variable to "-O1" or even to "-O0"
> before running the configure script.
>
> Does disabling Altivec help? This can be done by setting
> the PIXMAN_DISABLE environment variable to "vmx".
>
> Are you sure that the newly built pixman library is used for tests
> and not some older installed version. You can try to run pixman
> configure with an extra "--disable-shared" option and check if
> this affects anything.
>
> By trying these steps, we can get more information about the problem
> and find a possible solution.
>
> -- 
> Best regards,
> Siarhei Siamashka