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gpu: implement basic Buffer .getConstMappedRange, .getMappedRange

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-03-18 22:42:56 -07:00 • committed by Stephen Gutekanst
parent 1209cb590d
commit 05d1eeb9ee
2 changed files with 24 additions and 4 deletions
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16
gpu/src/Buffer.zig
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@ -11,10 +11,8 @@ pub const VTable = struct {
reference: fn (ptr: *anyopaque) void, reference: fn (ptr: *anyopaque) void,
release: fn (ptr: *anyopaque) void, release: fn (ptr: *anyopaque) void,
destroy: fn (ptr: *anyopaque) void, destroy: fn (ptr: *anyopaque) void,
// TODO: typed buffer pointer? getConstMappedRange: fn (ptr: *anyopaque, offset: usize, size: usize) []const u8,
// WGPU_EXPORT void const * wgpuBufferGetConstMappedRange(WGPUBuffer buffer, size_t offset, size_t size); getMappedRange: fn (ptr: *anyopaque, offset: usize, size: usize) []u8,
// TODO: typed buffer pointer?
// WGPU_EXPORT void * wgpuBufferGetMappedRange(WGPUBuffer buffer, size_t offset, size_t size);
setLabel: fn (ptr: *anyopaque, label: [:0]const u8) void, setLabel: fn (ptr: *anyopaque, label: [:0]const u8) void,
mapAsync: fn ( mapAsync: fn (
ptr: *anyopaque, ptr: *anyopaque,
@ -38,6 +36,14 @@ pub inline fn destroy(buf: Buffer) void {
buf.vtable.destroy(buf.ptr); buf.vtable.destroy(buf.ptr);
} }
pub inline fn getConstMappedRange(buf: Buffer, offset: usize, size: usize) []const u8 {
return buf.vtable.getConstMappedRange(buf.ptr, offset, size);
}
pub inline fn getMappedRange(buf: Buffer, offset: usize, size: usize) []u8 {
return buf.vtable.getMappedRange(buf.ptr, offset, size);
}
pub inline fn setLabel(buf: Buffer, label: [:0]const u8) void { pub inline fn setLabel(buf: Buffer, label: [:0]const u8) void {
buf.vtable.setLabel(buf.ptr, label); buf.vtable.setLabel(buf.ptr, label);
} }
@ -120,6 +126,8 @@ test {
_ = reference; _ = reference;
_ = release; _ = release;
_ = destroy; _ = destroy;
_ = getConstMappedRange;
_ = getMappedRange;
_ = setLabel; _ = setLabel;
_ = Descriptor; _ = Descriptor;
_ = BindingType; _ = BindingType;

12
gpu/src/NativeInstance.zig
View file

@ -1700,6 +1700,18 @@ const buffer_vtable = Buffer.VTable{
c.wgpuBufferRelease(@ptrCast(c.WGPUBuffer, ptr)); c.wgpuBufferRelease(@ptrCast(c.WGPUBuffer, ptr));
} }
}).release, }).release,
.getConstMappedRange = (struct {
pub fn getConstMappedRange(ptr: *anyopaque, offset: usize, size: usize) []const u8 {
const range = c.wgpuBufferGetConstMappedRange(@ptrCast(c.WGPUBuffer, ptr), offset, size);
return @ptrCast([*c]const u8, range.?)[0..size];
}
}).getConstMappedRange,
.getMappedRange = (struct {
pub fn getMappedRange(ptr: *anyopaque, offset: usize, size: usize) []u8 {
const range = c.wgpuBufferGetMappedRange(@ptrCast(c.WGPUBuffer, ptr), offset, size);
return @ptrCast([*c]u8, range.?)[0..size];
}
}).getMappedRange,
.setLabel = (struct { .setLabel = (struct {
pub fn setLabel(ptr: *anyopaque, label: [:0]const u8) void { pub fn setLabel(ptr: *anyopaque, label: [:0]const u8) void {
c.wgpuBufferSetLabel(@ptrCast(c.WGPUBuffer, ptr), label); c.wgpuBufferSetLabel(@ptrCast(c.WGPUBuffer, ptr), label);