renati/voxel-game
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Don't use variable descriptor count

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This commit is contained in:
Szymon Nowakowski
2026-09-22 02:22:23 +02:00
parent c3fa7115c8
commit 609321af2a
2 changed files with 2 additions and 23 deletions
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7
src/Game.zig
View File

@@ -50,7 +50,6 @@ skybox: Skybox,
player: Player,
font: Fonts.Id,
const max_textures = 1024;
const max_point_lights = 1024;
const max_directional_lights = 4;
const chunk_descriptor_pool = 1024;
@@ -138,9 +137,8 @@ pub fn init() !Game {
.{
.binding = 5,
.descriptor_type = .sampled_image,
.descriptor_count = max_textures,
.descriptor_count = Textures.max_textures,
.stage_flags = .{ .vertex_bit = true, .fragment_bit = true },
.flags = .{ .variable_descriptor_count_bit = true }, // TODO Get rid of this AND somehow integrate with Textures module?
},
},
});
@@ -418,7 +416,7 @@ pub fn init() !Game {
},
.{
.type = .sampled_image,
.descriptor_count = max_textures,
.descriptor_count = Textures.max_textures,
},
.{
.type = .uniform_buffer,
@@ -436,7 +434,6 @@ pub fn init() !Game {
const global_descriptor_set = try engine.allocateDescriptorSet(.{
.descriptor_pool = descriptor_pool,
.set_layout = global_descriptor_set_layout,
.variable_descriptor_count = @intCast(textures.array.items.len),
});
engine.setObjectName(global_descriptor_set, "DS Global", .{});

18
src/engine/Engine.zig
View File

@@ -275,7 +275,6 @@ pub fn init() !*Engine {
.shader_float_16 = .true,
.descriptor_indexing = .true,
.descriptor_binding_partially_bound = .true,
.descriptor_binding_variable_descriptor_count = .true,
.runtime_descriptor_array = .true,
.scalar_block_layout = .true,
.imageless_framebuffer = .true,
@@ -745,13 +744,11 @@ pub const DescriptorPoolCreateInfo = struct {
pub const DescriptorSetAllocateInfo = struct {
descriptor_pool: vk.DescriptorPool,
set_layout: vk.DescriptorSetLayout,
variable_descriptor_count: ?u32 = null,
};
pub const DescriptorSetsAllocateInfo = struct {
descriptor_pool: vk.DescriptorPool,
set_layouts: []const vk.DescriptorSetLayout,
variable_descriptor_counts: []const u32 = &.{},
};
pub const DescriptorSetLayoutBinding = struct {
@@ -969,28 +966,13 @@ pub fn allocateDescriptorSet(self: *Engine, allocate_info: DescriptorSetAllocate
try self.allocateDescriptorSets(.{
.descriptor_pool = allocate_info.descriptor_pool,
.set_layouts = &.{allocate_info.set_layout},
.variable_descriptor_counts = if (allocate_info.variable_descriptor_count) |x| &.{x} else &.{},
}, &descriptor_sets);
return descriptor_sets[0];
}
pub fn allocateDescriptorSets(self: *Engine, allocate_info: DescriptorSetsAllocateInfo, descriptor_sets: []vk.DescriptorSet) !void {
std.debug.assert(descriptor_sets.len >= allocate_info.set_layouts.len);
const has_variable_descriptor_counts = allocate_info.variable_descriptor_counts.len > 0;
var p_next: ?*const anyopaque = null;
if (has_variable_descriptor_counts) {
p_next = &vk.DescriptorSetVariableDescriptorCountAllocateInfo{
.p_next = p_next,
.descriptor_set_count = @intCast(allocate_info.variable_descriptor_counts.len),
.p_descriptor_counts = allocate_info.variable_descriptor_counts.ptr,
};
}
try self.device.allocateDescriptorSets(&.{
.p_next = p_next,
.descriptor_pool = allocate_info.descriptor_pool,
.descriptor_set_count = @intCast(allocate_info.set_layouts.len),
.p_set_layouts = allocate_info.set_layouts.ptr,