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58f5605124
The previous implementation had several issues: - It wasn't checking all the conditions necessary for "this blit updates the whole surface", like PIPE_MASK_Z but not S on a depth/stencil buffer. - It would reset the previous batchbuffer, even if that batch had side effects on other buffers. - The layering was painful to follow and made any recursion extra dangerous. Now, we use a more conservative test (enough for the resource shadowing case) and just invalidate the buffer up front, which should have the right logic for discarding drawing to that resource. I found I had to add fd_bc_flush_writer() to the end of fd_blitter_blit() -- a flush was happening at fb state restore time when the discard flag was set, and losing that flush breaks dEQP-GLES31.functional.stencil_texturing.format.stencil_index8_cube. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11455> |
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