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vc4: Don't look at back stencil state unless two-sided stencil is enabled.

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Fixes regressions in the next bugfix, because gallium util stuff leaves
the back stencil state as 0 if !back->enabled.
This commit is contained in:
Eric Anholt
2014-10-20 22:53:07 +01:00
parent 4f17e026bb
commit 48f6351940
1 changed files with 6 additions and 2 deletions
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src/gallium/drivers/vc4/vc4_state.c
+6 -2
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@@ -203,12 +203,16 @@ vc4_create_depth_stencil_alpha_state(struct pipe_context *pctx,
uint8_t front_writemask_bits =
tlb_stencil_setup_writemask(front->writemask);
uint8_t back_writemask_bits =
tlb_stencil_setup_writemask(back->writemask);
uint8_t back_writemask = front->writemask;
uint8_t back_writemask_bits = front_writemask_bits;
so->stencil_uniforms[0] =
tlb_stencil_setup_bits(front, front_writemask_bits);
if (back->enabled) {
back_writemask = back->writemask;
back_writemask_bits =
tlb_stencil_setup_writemask(back->writemask);
so->stencil_uniforms[0] |= (1 << 30);
so->stencil_uniforms[1] =
tlb_stencil_setup_bits(back, back_writemask_bits);