allemang.d/vulkan-zig
1
0
Fork 0
forked from mirror/vulkan-zig
Code Pull Requests Activity

API Version parsing & rendering

Browse Source
This commit is contained in:
Robin Voetter
2020-06-30 16:48:58 +02:00
parent 9bda7d3357
commit c6054d2665
6 changed files with 174 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

55
generator/registry/parse.zig
View File

@@ -462,29 +462,74 @@ fn parseApiConstants(allocator: *Allocator, root: *xml.Element) ![]registry.ApiC
return error.InvalidRegistry;
};
const constants = try allocator.alloc(registry.ApiConstant, enums.children.count());
var types = root.findChildByTag("types") orelse return error.InvalidRegistry;
const n_defines = blk: {
var n_defines: usize = 0;
var it = types.findChildrenByTag("type");
while (it.next()) |ty| {
if (ty.getAttribute("category")) |category| {
if (mem.eql(u8, category, "define")) {
n_defines += 1;
}
}
}
break :blk n_defines;
};
const constants = try allocator.alloc(registry.ApiConstant, enums.children.count() + n_defines);
var i: usize = 0;
var it = enums.findChildrenByTag("enum");
while (it.next()) |constant| {
const value = if (constant.getAttribute("value")) |expr|
registry.ApiConstant.Value{.expr = expr}
const expr = if (constant.getAttribute("value")) |expr|
expr
else if (constant.getAttribute("alias")) |alias|
registry.ApiConstant.Value{.alias = alias}
alias
else
return error.InvalidRegistry;
constants[i] = .{
.name = constant.getAttribute("name") orelse return error.InvalidRegistry,
.value = value,
.value = .{.expr = expr},
};
i += 1;
}
i += try parseDefines(types, constants[i..]);
return allocator.shrink(constants, i);
}
fn parseDefines(types: *xml.Element, out: []registry.ApiConstant) !usize {
var i: usize = 0;
var it = types.findChildrenByTag("type");
while (it.next()) |ty| {
const category = ty.getAttribute("category") orelse continue;
if (!mem.eql(u8, category, "define")) {
continue;
}
const name = ty.getCharData("name") orelse continue;
if (mem.eql(u8, name, "VK_HEADER_VERSION")) {
out[i] = .{
.name = name,
.value = .{.expr = mem.trim(u8, ty.children.at(2).CharData, " ")},
};
} else {
var xctok = cparse.XmlCTokenizer.init(ty);
out[i] = .{
.name = name,
.value = .{
.version = cparse.parseVersion(&xctok) catch continue
},
};
}
i += 1;
}
return i;
}
fn parseTags(allocator: *Allocator, root: *xml.Element) ![]registry.Tag {
var tags_elem = root.findChildByTag("tags") orelse return error.InvalidRegistry;
const tags = try allocator.alloc(registry.Tag, tags_elem.children.count());