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llvmpipe/interp: refactor out use of pixel center offset

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Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5050>
This commit is contained in:
Dave Airlie 2020-05-13 06:47:14 +10:00
parent ae5f6ddc05
commit c1f5a23a4d
1 changed files with 9 additions and 8 deletions
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17
src/gallium/drivers/llvmpipe/lp_bld_interp.c
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@ -253,6 +253,7 @@ attribs_update_simple(struct lp_build_interp_soa_context *bld,
LLVMValueRef pixoffx;
LLVMValueRef pixoffy;
LLVMValueRef ptr;
LLVMValueRef pix_center_offset = lp_build_const_vec(gallivm, coeff_bld->type, bld->pos_offset);
/* could do this with code-generated passed in pixel offsets too */
@ -293,8 +294,8 @@ attribs_update_simple(struct lp_build_interp_soa_context *bld,
LLVMValueRef x_val_idx = LLVMBuildMul(gallivm->builder, sample_id, lp_build_const_int32(gallivm, 2), "");
x_val_idx = lp_build_array_get(gallivm, bld->sample_pos_array, x_val_idx);
a = lp_build_broadcast_scalar(coeff_bld, x_val_idx);
} else if (bld->pos_offset) {
a = lp_build_const_vec(gallivm, coeff_bld->type, bld->pos_offset);
} else {
a = pix_center_offset;
}
}
else if (attrib == 0 && chan == 1) {
@ -304,8 +305,8 @@ attribs_update_simple(struct lp_build_interp_soa_context *bld,
y_val_idx = LLVMBuildAdd(gallivm->builder, y_val_idx, lp_build_const_int32(gallivm, 1), "");
y_val_idx = lp_build_array_get(gallivm, bld->sample_pos_array, y_val_idx);
a = lp_build_broadcast_scalar(coeff_bld, y_val_idx);
} else if (bld->pos_offset) {
a = lp_build_const_vec(gallivm, coeff_bld->type, bld->pos_offset);
} else {
a = pix_center_offset;
}
}
else {
@ -320,8 +321,8 @@ attribs_update_simple(struct lp_build_interp_soa_context *bld,
index);
if (bld->coverage_samples > 1) {
LLVMValueRef xoffset = lp_build_const_vec(gallivm, coeff_bld->type, bld->pos_offset);
LLVMValueRef yoffset = lp_build_const_vec(gallivm, coeff_bld->type, bld->pos_offset);
LLVMValueRef xoffset = pix_center_offset;
LLVMValueRef yoffset = pix_center_offset;
if (loc == TGSI_INTERPOLATE_LOC_SAMPLE || (attrib == 0 && chan == 2 && sample_id)) {
LLVMValueRef x_val_idx = LLVMBuildMul(gallivm->builder, sample_id, lp_build_const_int32(gallivm, 2), "");
LLVMValueRef y_val_idx = LLVMBuildAdd(gallivm->builder, x_val_idx, lp_build_const_int32(gallivm, 1), "");
@ -331,8 +332,8 @@ attribs_update_simple(struct lp_build_interp_soa_context *bld,
xoffset = lp_build_broadcast_scalar(coeff_bld, x_val_idx);
yoffset = lp_build_broadcast_scalar(coeff_bld, y_val_idx);
} else if (loc == TGSI_INTERPOLATE_LOC_CENTROID) {
LLVMValueRef centroid_x_offset = lp_build_const_vec(gallivm, coeff_bld->type, bld->pos_offset);
LLVMValueRef centroid_y_offset = lp_build_const_vec(gallivm, coeff_bld->type, bld->pos_offset);
LLVMValueRef centroid_x_offset = pix_center_offset;
LLVMValueRef centroid_y_offset = pix_center_offset;
/* for centroid find covered samples for this quad. */
/* if all samples are covered use pixel centers */