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llvmpipe: fix bug in early depth test / late depth write handling

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Using wrong type if the format was less than 32bits.
No piglit changes as it doesn't hit that path.

Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This commit is contained in:
Roland Scheidegger
2013-05-21 22:51:15 +02:00
parent 6d20e251f2
commit 5314f5d829
1 changed files with 7 additions and 6 deletions
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13
src/gallium/drivers/llvmpipe/lp_bld_depth.c
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@@ -680,15 +680,15 @@ lp_build_depth_stencil_write_swizzled(struct gallivm_state *gallivm,
LLVMTypeRef load_ptr_type;
unsigned depth_bytes = format_desc->block.bits / 8;
struct lp_type zs_type = lp_depth_type(format_desc, z_src_type.length);
struct lp_type z_type = zs_type;
struct lp_type zs_load_type = zs_type;
zs_load_type.length = zs_load_type.length / 2;
load_ptr_type = LLVMPointerType(lp_build_vec_type(gallivm, zs_load_type), 0);
if (zs_type.width > 32)
zs_type.width = 32;
z_type.width = z_src_type.width;
lp_build_context_init(&z_bld, gallivm, zs_type);
lp_build_context_init(&z_bld, gallivm, z_type);
/*
* This is far from ideal, at least for late depth write we should do this
@@ -742,7 +742,8 @@ lp_build_depth_stencil_write_swizzled(struct gallivm_state *gallivm,
if (zs_type.width < z_src_type.width) {
/* Truncate ZS values (e.g., when writing to Z16_UNORM) */
z_value = LLVMBuildTrunc(builder, z_value, z_bld.vec_type, "");
z_value = LLVMBuildTrunc(builder, z_value,
lp_build_int_vec_type(gallivm, zs_type), "");
}
if (format_desc->block.bits <= 32) {
@@ -762,9 +763,9 @@ lp_build_depth_stencil_write_swizzled(struct gallivm_state *gallivm,
}
else {
if (z_src_type.length == 4) {
zs_dst1 = lp_build_interleave2(gallivm, zs_type,
zs_dst1 = lp_build_interleave2(gallivm, z_type,
z_value, s_value, 0);
zs_dst2 = lp_build_interleave2(gallivm, zs_type,
zs_dst2 = lp_build_interleave2(gallivm, z_type,
z_value, s_value, 1);
}
else {