Module: Mesa Branch: staging/19.1 Commit: bb845df9613e4cae884e15167ccc79406c09d77a URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=bb845df9613e4cae884e15167ccc79406c09d77a
Author: Marek Olšák <[email protected]> Date: Thu Apr 25 18:44:51 2019 -0400 st/mesa: fix 2 crashes in st_tgsi_lower_yuv src/mesa/state_tracker/st_tgsi_lower_yuv.c:68: void reg_dst(struct tgsi_full_dst_register *, const struct tgsi_full_dst_register *, unsigned int): assertion "dst->Register.WriteMask" failed The second crash was due to insufficient allocated size for TGSI instructions. Cc: 19.0 19.1 <[email protected]> Reviewed-by: Rob Clark <[email protected]> (cherry picked from commit 83435e748f7c2c6bf1c946f2a489cce40b9ea05f) --- src/mesa/state_tracker/st_tgsi_lower_yuv.c | 48 +++++++++++++++++------------- 1 file changed, 28 insertions(+), 20 deletions(-) diff --git a/src/mesa/state_tracker/st_tgsi_lower_yuv.c b/src/mesa/state_tracker/st_tgsi_lower_yuv.c index 6acd173adc9..73437ddda70 100644 --- a/src/mesa/state_tracker/st_tgsi_lower_yuv.c +++ b/src/mesa/state_tracker/st_tgsi_lower_yuv.c @@ -269,31 +269,39 @@ yuv_to_rgb(struct tgsi_transform_context *tctx, tctx->emit_instruction(tctx, &inst); /* DP3 dst.x, tmpA, imm[0] */ - inst = dp3_instruction(); - reg_dst(&inst.Dst[0], dst, TGSI_WRITEMASK_X); - reg_src(&inst.Src[0], &ctx->tmp[A].src, SWIZ(X, Y, Z, W)); - reg_src(&inst.Src[1], &ctx->imm[0], SWIZ(X, Y, Z, W)); - tctx->emit_instruction(tctx, &inst); + if (dst->Register.WriteMask & TGSI_WRITEMASK_X) { + inst = dp3_instruction(); + reg_dst(&inst.Dst[0], dst, TGSI_WRITEMASK_X); + reg_src(&inst.Src[0], &ctx->tmp[A].src, SWIZ(X, Y, Z, W)); + reg_src(&inst.Src[1], &ctx->imm[0], SWIZ(X, Y, Z, W)); + tctx->emit_instruction(tctx, &inst); + } /* DP3 dst.y, tmpA, imm[1] */ - inst = dp3_instruction(); - reg_dst(&inst.Dst[0], dst, TGSI_WRITEMASK_Y); - reg_src(&inst.Src[0], &ctx->tmp[A].src, SWIZ(X, Y, Z, W)); - reg_src(&inst.Src[1], &ctx->imm[1], SWIZ(X, Y, Z, W)); - tctx->emit_instruction(tctx, &inst); + if (dst->Register.WriteMask & TGSI_WRITEMASK_Y) { + inst = dp3_instruction(); + reg_dst(&inst.Dst[0], dst, TGSI_WRITEMASK_Y); + reg_src(&inst.Src[0], &ctx->tmp[A].src, SWIZ(X, Y, Z, W)); + reg_src(&inst.Src[1], &ctx->imm[1], SWIZ(X, Y, Z, W)); + tctx->emit_instruction(tctx, &inst); + } /* DP3 dst.z, tmpA, imm[2] */ - inst = dp3_instruction(); - reg_dst(&inst.Dst[0], dst, TGSI_WRITEMASK_Z); - reg_src(&inst.Src[0], &ctx->tmp[A].src, SWIZ(X, Y, Z, W)); - reg_src(&inst.Src[1], &ctx->imm[2], SWIZ(X, Y, Z, W)); - tctx->emit_instruction(tctx, &inst); + if (dst->Register.WriteMask & TGSI_WRITEMASK_Z) { + inst = dp3_instruction(); + reg_dst(&inst.Dst[0], dst, TGSI_WRITEMASK_Z); + reg_src(&inst.Src[0], &ctx->tmp[A].src, SWIZ(X, Y, Z, W)); + reg_src(&inst.Src[1], &ctx->imm[2], SWIZ(X, Y, Z, W)); + tctx->emit_instruction(tctx, &inst); + } /* MOV dst.w, imm[0].x */ - inst = mov_instruction(); - reg_dst(&inst.Dst[0], dst, TGSI_WRITEMASK_W); - reg_src(&inst.Src[0], &ctx->imm[3], SWIZ(_, _, _, W)); - tctx->emit_instruction(tctx, &inst); + if (dst->Register.WriteMask & TGSI_WRITEMASK_W) { + inst = mov_instruction(); + reg_dst(&inst.Dst[0], dst, TGSI_WRITEMASK_W); + reg_src(&inst.Src[0], &ctx->imm[3], SWIZ(_, _, _, W)); + tctx->emit_instruction(tctx, &inst); + } } static void @@ -434,7 +442,7 @@ st_tgsi_lower_yuv(const struct tgsi_token *tokens, unsigned free_slots, /* TODO better job of figuring out how many extra tokens we need.. * this is a pain about tgsi_transform :-/ */ - newlen = tgsi_num_tokens(tokens) + 120; + newlen = tgsi_num_tokens(tokens) + 300; newtoks = tgsi_alloc_tokens(newlen); if (!newtoks) return NULL; _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
