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gpu: implement CommandEncoder

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-03-10 00:23:36 -07:00 • committed by Stephen Gutekanst
parent ca6ff5d46c
commit 080aa950bb
3 changed files with 67 additions and 0 deletions
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43
gpu/src/CommandEncoder.zig Normal file
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@ -0,0 +1,43 @@
const CommandEncoder = @This();
/// The type erased pointer to the CommandEncoder implementation
/// Equal to c.WGPUCommandEncoder for NativeInstance.
ptr: *anyopaque,
vtable: *const VTable,
pub const VTable = struct {
reference: fn (ptr: *anyopaque) void,
release: fn (ptr: *anyopaque) void,
// TODO:
// WGPU_EXPORT WGPUComputePassEncoder wgpuCommandEncoderBeginComputePass(WGPUCommandEncoder commandEncoder, WGPUComputePassDescriptor const * descriptor);
// WGPU_EXPORT WGPURenderPassEncoder wgpuCommandEncoderBeginRenderPass(WGPUCommandEncoder commandEncoder, WGPURenderPassDescriptor const * descriptor);
// WGPU_EXPORT void wgpuCommandEncoderClearBuffer(WGPUCommandEncoder commandEncoder, WGPUBuffer buffer, uint64_t offset, uint64_t size);
// WGPU_EXPORT void wgpuCommandEncoderCopyBufferToBuffer(WGPUCommandEncoder commandEncoder, WGPUBuffer source, uint64_t sourceOffset, WGPUBuffer destination, uint64_t destinationOffset, uint64_t size);
// WGPU_EXPORT void wgpuCommandEncoderCopyBufferToTexture(WGPUCommandEncoder commandEncoder, WGPUImageCopyBuffer const * source, WGPUImageCopyTexture const * destination, WGPUExtent3D const * copySize);
// WGPU_EXPORT void wgpuCommandEncoderCopyTextureToBuffer(WGPUCommandEncoder commandEncoder, WGPUImageCopyTexture const * source, WGPUImageCopyBuffer const * destination, WGPUExtent3D const * copySize);
// WGPU_EXPORT void wgpuCommandEncoderCopyTextureToTexture(WGPUCommandEncoder commandEncoder, WGPUImageCopyTexture const * source, WGPUImageCopyTexture const * destination, WGPUExtent3D const * copySize);
// WGPU_EXPORT void wgpuCommandEncoderCopyTextureToTextureInternal(WGPUCommandEncoder commandEncoder, WGPUImageCopyTexture const * source, WGPUImageCopyTexture const * destination, WGPUExtent3D const * copySize);
// WGPU_EXPORT WGPUCommandBuffer wgpuCommandEncoderFinish(WGPUCommandEncoder commandEncoder, WGPUCommandBufferDescriptor const * descriptor);
// WGPU_EXPORT void wgpuCommandEncoderInjectValidationError(WGPUCommandEncoder commandEncoder, char const * message);
// WGPU_EXPORT void wgpuCommandEncoderInsertDebugMarker(WGPUCommandEncoder commandEncoder, char const * markerLabel);
// WGPU_EXPORT void wgpuCommandEncoderPopDebugGroup(WGPUCommandEncoder commandEncoder);
// WGPU_EXPORT void wgpuCommandEncoderPushDebugGroup(WGPUCommandEncoder commandEncoder, char const * groupLabel);
// WGPU_EXPORT void wgpuCommandEncoderResolveQuerySet(WGPUCommandEncoder commandEncoder, WGPUQuerySet querySet, uint32_t firstQuery, uint32_t queryCount, WGPUBuffer destination, uint64_t destinationOffset);
// WGPU_EXPORT void wgpuCommandEncoderSetLabel(WGPUCommandEncoder commandEncoder, char const * label);
// WGPU_EXPORT void wgpuCommandEncoderWriteBuffer(WGPUCommandEncoder commandEncoder, WGPUBuffer buffer, uint64_t bufferOffset, uint8_t const * data, uint64_t size);
// WGPU_EXPORT void wgpuCommandEncoderWriteTimestamp(WGPUCommandEncoder commandEncoder, WGPUQuerySet querySet, uint32_t queryIndex);
};
pub inline fn reference(enc: CommandEncoder) void {
enc.vtable.reference(enc.ptr);
}
pub inline fn release(enc: CommandEncoder) void {
enc.vtable.release(enc.ptr);
}
test "syntax" {
_ = VTable;
_ = reference;
_ = release;
}

22
gpu/src/NativeInstance.zig
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@ -33,6 +33,7 @@ const ExternalTexture = @import("ExternalTexture.zig");
const BindGroup = @import("BindGroup.zig");
const BindGroupLayout = @import("BindGroupLayout.zig");
const Buffer = @import("Buffer.zig");
const CommandEncoder = @import("CommandEncoder.zig");
const TextureUsage = @import("enums.zig").TextureUsage;
const TextureFormat = @import("enums.zig").TextureFormat;
@ -770,6 +771,26 @@ const buffer_vtable = Buffer.VTable{
}).release,
};
fn wrapCommandEncoder(buffer: c.WGPUCommandEncoder) CommandEncoder {
return .{
.ptr = buffer.?,
.vtable = &command_encoder_vtable,
};
}
const command_encoder_vtable = CommandEncoder.VTable{
.reference = (struct {
pub fn reference(ptr: *anyopaque) void {
c.wgpuCommandEncoderReference(@ptrCast(c.WGPUCommandEncoder, ptr));
}
}).reference,
.release = (struct {
pub fn release(ptr: *anyopaque) void {
c.wgpuCommandEncoderRelease(@ptrCast(c.WGPUCommandEncoder, ptr));
}
}).release,
};
test "syntax" {
_ = wrap;
_ = interface_vtable;
@ -796,4 +817,5 @@ test "syntax" {
_ = wrapBindGroup;
_ = wrapBindGroupLayout;
_ = wrapBuffer;
_ = wrapCommandEncoder;
}

2
gpu/src/main.zig
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@ -48,6 +48,7 @@ pub const ExternalTexture = @import("ExternalTexture.zig");
pub const BindGroup = @import("BindGroup.zig");
pub const BindGroupLayout = @import("BindGroupLayout.zig");
pub const Buffer = @import("Buffer.zig");
pub const CommandEncoder = @import("CommandEncoder.zig");
pub const Feature = @import("enums.zig").Feature;
pub const TextureUsage = @import("enums.zig").TextureUsage;
@ -120,6 +121,7 @@ test "syntax" {
_ = BindGroup;
_ = BindGroupLayout;
_ = Buffer;
_ = CommandEncoder;
_ = Feature;
}