intel: Track miptrees for fake packed depth/stencil renderbuffers.
Right now the fake packed d/s RBs are creating two sub-renderbuffers with their own storage, and the hardware setup and the mapping code have been explicitly referencing them. By setting miptrees on them, we'll be able to make our renderbuffer code for fake packed depth/stencil more consistent with all our other renderbuffers. The interesting new behavior here is that there is now a mt with a non-depthstencil format (X8Z24) that has a stencil_mt field associated. This looks like it should be safe, and we'll need to be able to do this for floating point depth/stencil as well.
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@ -591,6 +591,7 @@ intel_alloc_renderbuffer_storage(struct gl_context * ctx, struct gl_renderbuffer
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bool ok = true;
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struct gl_renderbuffer *depth_rb;
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struct gl_renderbuffer *stencil_rb;
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struct intel_renderbuffer *depth_irb, *stencil_irb;
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depth_rb = intel_create_wrapped_renderbuffer(ctx, width, height,
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MESA_FORMAT_X8_Z24);
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@ -614,6 +615,12 @@ intel_alloc_renderbuffer_storage(struct gl_context * ctx, struct gl_renderbuffer
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return false;
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}
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depth_irb = intel_renderbuffer(depth_rb);
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stencil_irb = intel_renderbuffer(stencil_rb);
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intel_miptree_reference(&depth_irb->mt->stencil_mt, stencil_irb->mt);
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intel_miptree_reference(&irb->mt, depth_irb->mt);
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depth_rb->Wrapped = rb;
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stencil_rb->Wrapped = rb;
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_mesa_reference_renderbuffer(&irb->wrapped_depth, depth_rb);
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@ -953,6 +960,9 @@ intel_renderbuffer_update_wrapper(struct intel_context *intel,
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if (!ok)
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return false;
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}
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intel_miptree_reference(&depth_irb->mt->stencil_mt, stencil_irb->mt);
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intel_miptree_reference(&irb->mt, depth_irb->mt);
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} else {
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intel_miptree_reference(&irb->mt, mt);
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intel_renderbuffer_set_draw_offset(irb);
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