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gpu: implement CommandEncoder.beginRenderPass

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-03-11 21:00:01 -07:00 • committed by Stephen Gutekanst
parent 12462d42aa
commit 510c7de9f2
4 changed files with 41 additions and 3 deletions
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9
gpu/src/CommandEncoder.zig
View file

@ -1,3 +1,5 @@
const RenderPassEncoder = @import("RenderPassEncoder.zig");
const CommandEncoder = @This();
/// The type erased pointer to the CommandEncoder implementation
@ -10,7 +12,7 @@ pub const VTable = struct {
release: fn (ptr: *anyopaque) void,
// TODO:
// WGPU_EXPORT WGPUComputePassEncoder wgpuCommandEncoderBeginComputePass(WGPUCommandEncoder commandEncoder, WGPUComputePassDescriptor const * descriptor);
// WGPU_EXPORT WGPURenderPassEncoder wgpuCommandEncoderBeginRenderPass(WGPUCommandEncoder commandEncoder, WGPURenderPassDescriptor const * descriptor);
beginRenderPass: fn (ptr: *anyopaque, descriptor: *const RenderPassEncoder.Descriptor) RenderPassEncoder,
// 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);
@ -40,6 +42,10 @@ pub inline fn setLabel(enc: CommandEncoder, label: [:0]const u8) void {
enc.vtable.setLabel(enc.ptr, label);
}
pub inline fn beginRenderPass(enc: CommandEncoder, descriptor: *const RenderPassEncoder.Descriptor) RenderPassEncoder {
return enc.vtable.beginRenderPass(enc.ptr, descriptor);
}
pub const Descriptor = struct {
label: ?[*:0]const u8 = null,
};
@ -48,5 +54,6 @@ test "syntax" {
_ = VTable;
_ = reference;
_ = release;
_ = beginRenderPass;
_ = Descriptor;
}

1
gpu/src/Device.zig
View file

@ -110,6 +110,7 @@ test "syntax" {
_ = createShaderModule;
_ = nativeCreateSwapChain;
_ = destroy;
_ = createCommandEncoder;
_ = createRenderPipeline;
_ = Descriptor;
_ = LostReason;

31
gpu/src/NativeInstance.zig
View file

@ -382,7 +382,7 @@ const device_vtable = Device.VTable{
pub fn createCommandEncoder(ptr: *anyopaque, descriptor: ?*const CommandEncoder.Descriptor) CommandEncoder {
const desc: ?*c.WGPUCommandEncoderDescriptor = if (descriptor) |d| &.{
.nextInChain = null,
.label = d.label,
.label = if (d.label) |l| l else "",
} else null;
return wrapCommandEncoder(c.wgpuDeviceCreateCommandEncoder(@ptrCast(c.WGPUDevice, ptr), desc));
}
@ -430,7 +430,7 @@ inline fn convertRenderPipelineDescriptor(
return c.WGPURenderPipelineDescriptor{
.nextInChain = null,
.label = d.label,
.label = if (d.label) |l| l else null,
.layout = if (d.layout) |v| @ptrCast(c.WGPUPipelineLayout, v.ptr) else null,
.vertex = c.WGPUVertexState{
.nextInChain = null,
@ -996,6 +996,33 @@ const command_encoder_vtable = CommandEncoder.VTable{
c.wgpuCommandEncoderSetLabel(@ptrCast(c.WGPUCommandEncoder, ptr), label);
}
}).setLabel,
.beginRenderPass = (struct {
pub fn beginRenderPass(ptr: *anyopaque, d: *const RenderPassEncoder.Descriptor) RenderPassEncoder {
const desc = c.WGPURenderPassDescriptor{
.nextInChain = null,
.label = if (d.label) |l| l else null,
.colorAttachmentCount = 0, // TODO
.colorAttachments = null, // TODO
.depthStencilAttachment = &c.WGPURenderPassDepthStencilAttachment{
.view = @ptrCast(c.WGPUTextureView, d.depth_stencil_attachment.view.ptr),
.depthLoadOp = @enumToInt(d.depth_stencil_attachment.depth_load_op),
.depthStoreOp = @enumToInt(d.depth_stencil_attachment.depth_store_op),
.clearDepth = d.depth_stencil_attachment.clear_depth,
.depthClearValue = d.depth_stencil_attachment.depth_clear_value,
.depthReadOnly = d.depth_stencil_attachment.depth_read_only,
.stencilLoadOp = @enumToInt(d.depth_stencil_attachment.stencil_load_op),
.stencilStoreOp = @enumToInt(d.depth_stencil_attachment.stencil_store_op),
.clearStencil = d.depth_stencil_attachment.clear_stencil,
.stencilClearValue = d.depth_stencil_attachment.stencil_clear_value,
.stencilReadOnly = d.depth_stencil_attachment.stencil_read_only,
},
.occlusionQuerySet = @ptrCast(c.WGPUQuerySet, d.occlusion_query_set.ptr),
.timestampWriteCount = 0, // TODO
.timestampWrites = null, // TODO
};
return wrapRenderPassEncoder(c.wgpuCommandEncoderBeginRenderPass(@ptrCast(c.WGPUCommandEncoder, ptr), &desc));
}
}).beginRenderPass,
};
fn wrapComputePassEncoder(enc: c.WGPUComputePassEncoder) ComputePassEncoder {

3
gpu/src/SwapChain.zig
View file

@ -71,5 +71,8 @@ test "syntax" {
_ = VTable;
_ = reference;
_ = release;
_ = configure;
_ = getCurrentTextureView;
_ = present;
_ = Descriptor;
}