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gallivm: remove Z/stencil special case code in lp_build_sample_offset()

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Fixes progs/tests/zreaddraw.c and progs/demos/shadowtex.c
This commit is contained in:
Brian Paul
2010-04-22 14:35:54 -06:00
parent 17249ae8e0
commit 19b26cb0a2
1 changed files with 7 additions and 45 deletions
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52
src/gallium/auxiliary/gallivm/lp_bld_sample.c
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@@ -181,54 +181,16 @@ lp_build_sample_offset(struct lp_build_context *bld,
LLVMValueRef offset;
x_stride = lp_build_const_vec(bld->type, format_desc->block.bits/8);
offset = lp_build_mul(bld, x, x_stride);
if(format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS) {
LLVMValueRef x_lo, x_hi;
LLVMValueRef y_lo, y_hi;
LLVMValueRef x_stride_lo, x_stride_hi;
LLVMValueRef y_stride_lo, y_stride_hi;
LLVMValueRef x_offset_lo, x_offset_hi;
LLVMValueRef y_offset_lo, y_offset_hi;
LLVMValueRef offset_lo, offset_hi;
/* XXX 1D & 3D addressing not done yet */
assert(!z);
assert(!z_stride);
x_lo = LLVMBuildAnd(bld->builder, x, bld->one, "");
y_lo = LLVMBuildAnd(bld->builder, y, bld->one, "");
x_hi = LLVMBuildLShr(bld->builder, x, bld->one, "");
y_hi = LLVMBuildLShr(bld->builder, y, bld->one, "");
x_stride_lo = x_stride;
y_stride_lo = lp_build_const_vec(bld->type, 2*format_desc->block.bits/8);
x_stride_hi = lp_build_const_vec(bld->type, 4*format_desc->block.bits/8);
y_stride_hi = LLVMBuildShl(bld->builder, y_stride, bld->one, "");
x_offset_lo = lp_build_mul(bld, x_lo, x_stride_lo);
y_offset_lo = lp_build_mul(bld, y_lo, y_stride_lo);
offset_lo = lp_build_add(bld, x_offset_lo, y_offset_lo);
x_offset_hi = lp_build_mul(bld, x_hi, x_stride_hi);
y_offset_hi = lp_build_mul(bld, y_hi, y_stride_hi);
offset_hi = lp_build_add(bld, x_offset_hi, y_offset_hi);
offset = lp_build_add(bld, offset_hi, offset_lo);
if (y && y_stride) {
LLVMValueRef y_offset = lp_build_mul(bld, y, y_stride);
offset = lp_build_add(bld, offset, y_offset);
}
else {
offset = lp_build_mul(bld, x, x_stride);
if (y && y_stride) {
LLVMValueRef y_offset = lp_build_mul(bld, y, y_stride);
offset = lp_build_add(bld, offset, y_offset);
}
if (z && z_stride) {
LLVMValueRef z_offset = lp_build_mul(bld, z, z_stride);
offset = lp_build_add(bld, offset, z_offset);
}
if (z && z_stride) {
LLVMValueRef z_offset = lp_build_mul(bld, z, z_stride);
offset = lp_build_add(bld, offset, z_offset);
}
return offset;