These formats are already allowed by the i965 GL driver, and the feature seems to work just fine.
There are tests for multisampled rendering in piglit: tests/spec/ext_framebuffer_multisample which can be patched to try 16I/32I in addition to GL_RGBA8I. IvyBridge passed all tests with all sample numbers. Signed-off-by: Topi Pohjolainen <[email protected]> --- src/intel/isl/isl_gen7.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/src/intel/isl/isl_gen7.c b/src/intel/isl/isl_gen7.c index 4c5edb4b93..ab47a7f622 100644 --- a/src/intel/isl/isl_gen7.c +++ b/src/intel/isl/isl_gen7.c @@ -76,9 +76,10 @@ isl_gen7_choose_msaa_layout(const struct isl_device *dev, * Note that the above SINT restrictions apply only to *MSRTs* (that is, * *multisampled* render targets). The restrictions seem to permit an MCS * if the render target is singlesampled. + * + * Moreover, empirically it looks that hardware can render multisampled + * surfaces with RGBA8I, RGBA16I and RGBA32I. */ - if (isl_format_has_sint_channel(info->format)) - return false; /* More obvious restrictions */ if (isl_surf_usage_is_display(info->usage)) -- 2.11.0 _______________________________________________ mesa-dev mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-dev
