f5daf66784
Now it is 2 ptr and I created a GpuArena. Point is to be like Zig, a const allocator and a var arena that track everything.
25 lines
779 B
Zig
25 lines
779 B
Zig
// GpuAllocator.zig
|
|
const std = @import("std");
|
|
const GpuDevice = @import("GpuDevice.zig");
|
|
const c = @import("utils.zig").c;
|
|
|
|
const GpuAllocator = @This();
|
|
|
|
/// The function definitions our underlying implementations must satisfy
|
|
pub const VTable = struct {
|
|
alloc: *const fn (ctx: *anyopaque, bytes: u64, usage: c.WGPUBufferUsage) anyerror!c.WGPUBuffer,
|
|
free: *const fn (ctx: *anyopaque, buf_raw: c.WGPUBuffer, size: u64) void,
|
|
};
|
|
|
|
device: GpuDevice,
|
|
ptr: *anyopaque,
|
|
vtable: *const VTable,
|
|
|
|
pub fn allocBuffer(self: GpuAllocator, bytes: u64, usage: c.WGPUBufferUsage) !c.WGPUBuffer {
|
|
return self.vtable.alloc(self.ptr, bytes, usage);
|
|
}
|
|
|
|
pub fn freeBuffer(self: GpuAllocator, buf_raw: c.WGPUBuffer, size: u64) void {
|
|
self.vtable.free(self.ptr, buf_raw, size);
|
|
}
|