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gpu: correctly handle null RenderPipeline.Descriptor transitive values

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Signed-off-by: Stephen Gutekanst <stephen@hexops.com>
This commit is contained in:
Stephen Gutekanst 2022-03-11 19:58:18 -07:00 • committed by Stephen Gutekanst
parent f5e6976937
commit 4e31e015a4
3 changed files with 32 additions and 30 deletions
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48
gpu/src/NativeInstance.zig
View file

@ -393,42 +393,44 @@ inline fn convertRenderPipelineDescriptor(
tmp_depth_stencil: *c.WGPUDepthStencilState,
tmp_fragment_state: *c.WGPUFragmentState,
) c.WGPURenderPipelineDescriptor {
tmp_depth_stencil.* = c.WGPUDepthStencilState{
.nextInChain = null,
.format = @enumToInt(d.depth_stencil.format),
.depthWriteEnabled = d.depth_stencil.depth_write_enabled,
.depthCompare = @enumToInt(d.depth_stencil.depth_compare),
.stencilFront = @bitCast(c.WGPUStencilFaceState, d.depth_stencil.stencil_front),
.stencilBack = @bitCast(c.WGPUStencilFaceState, d.depth_stencil.stencil_back),
.stencilReadMask = d.depth_stencil.stencil_read_mask,
.stencilWriteMask = d.depth_stencil.stencil_write_mask,
.depthBias = d.depth_stencil.depth_bias,
.depthBiasSlopeScale = d.depth_stencil.depth_bias_slope_scale,
.depthBiasClamp = d.depth_stencil.depth_bias_clamp,
};
if (d.depth_stencil) |ds| {
tmp_depth_stencil.* = c.WGPUDepthStencilState{
.nextInChain = null,
.format = @enumToInt(ds.format),
.depthWriteEnabled = ds.depth_write_enabled,
.depthCompare = @enumToInt(ds.depth_compare),
.stencilFront = @bitCast(c.WGPUStencilFaceState, ds.stencil_front),
.stencilBack = @bitCast(c.WGPUStencilFaceState, ds.stencil_back),
.stencilReadMask = ds.stencil_read_mask,
.stencilWriteMask = ds.stencil_write_mask,
.depthBias = ds.depth_bias,
.depthBiasSlopeScale = ds.depth_bias_slope_scale,
.depthBiasClamp = ds.depth_bias_clamp,
};
}
tmp_fragment_state.* = c.WGPUFragmentState{
.nextInChain = null,
.module = @ptrCast(c.WGPUShaderModule, d.fragment.module.ptr),
.entryPoint = d.vertex.entry_point,
.constantCount = @intCast(u32, d.fragment.constants.len),
.constants = @ptrCast(*const c.WGPUConstantEntry, &d.fragment.constants[0]),
.targetCount = @intCast(u32, d.fragment.targets.len),
.targets = @ptrCast(*const c.WGPUColorTargetState, &d.fragment.targets[0]),
.constantCount = if (d.fragment.constants) |v| @intCast(u32, v.len) else 0,
.constants = if (d.fragment.constants) |v| @ptrCast(*const c.WGPUConstantEntry, &v[0]) else null,
.targetCount = if (d.fragment.targets) |v| @intCast(u32, v.len) else 0,
.targets = if (d.fragment.targets) |v| @ptrCast(*const c.WGPUColorTargetState, &v[0]) else null,
};
return c.WGPURenderPipelineDescriptor{
.nextInChain = null,
.label = d.label,
.layout = @ptrCast(c.WGPUPipelineLayout, d.layout.ptr),
.layout = if (d.layout) |v| @ptrCast(c.WGPUPipelineLayout, v.ptr) else null,
.vertex = c.WGPUVertexState{
.nextInChain = null,
.module = @ptrCast(c.WGPUShaderModule, d.vertex.module.ptr),
.entryPoint = d.vertex.entry_point,
.constantCount = @intCast(u32, d.vertex.constants.len),
.constants = @ptrCast(*const c.WGPUConstantEntry, &d.vertex.constants[0]),
.bufferCount = @intCast(u32, d.vertex.buffers.len),
.buffers = @ptrCast(*const c.WGPUVertexBufferLayout, &d.vertex.buffers[0]),
.constantCount = if (d.vertex.constants) |v| @intCast(u32, v.len) else 0,
.constants = if (d.vertex.constants) |v| @ptrCast(*const c.WGPUConstantEntry, &v[0]) else null,
.bufferCount = if (d.vertex.buffers) |v| @intCast(u32, v.len) else 0,
.buffers = if (d.vertex.buffers) |v| @ptrCast(*const c.WGPUVertexBufferLayout, &v[0]) else null,
},
.primitive = c.WGPUPrimitiveState{
.nextInChain = null,
@ -437,7 +439,7 @@ inline fn convertRenderPipelineDescriptor(
.frontFace = @enumToInt(d.primitive.front_face),
.cullMode = @enumToInt(d.primitive.cull_mode),
},
.depthStencil = tmp_depth_stencil,
.depthStencil = if (d.depth_stencil != null) tmp_depth_stencil else null,
.multisample = c.WGPUMultisampleState{
.nextInChain = null,
.count = d.multisample.count,

4
gpu/src/RenderPipeline.zig
View file

@ -34,10 +34,10 @@ pub inline fn setLabel(pipeline: RenderPipeline, label: [:0]const u8) void {
pub const Descriptor = struct {
label: ?[*:0]const u8 = null,
layout: PipelineLayout,
layout: ?PipelineLayout,
vertex: VertexState,
primitive: PrimitiveState,
depth_stencil: *const DepthStencilState,
depth_stencil: ?*const DepthStencilState,
multisample: MultisampleState,
fragment: *const FragmentState,
};

10
gpu/src/structs.zig
View file

@ -79,7 +79,7 @@ pub const ProgrammableStageDescriptor = struct {
label: ?[*:0]const u8 = null,
module: ShaderModule,
entry_point: [*:0]const u8,
constants: []const ConstantEntry,
constants: ?[]const ConstantEntry,
};
pub const ComputePassTimestampWrite = struct {
@ -119,15 +119,15 @@ pub const RenderPassColorAttachment = struct {
pub const VertexState = struct {
module: ShaderModule,
entry_point: [*:0]const u8,
constants: []const ConstantEntry,
buffers: []const VertexBufferLayout,
constants: ?[]const ConstantEntry = null,
buffers: ?[]const VertexBufferLayout = null,
};
pub const FragmentState = struct {
module: ShaderModule,
entry_point: [*:0]const u8,
constants: []const ConstantEntry,
targets: []const ColorTargetState,
constants: ?[]const ConstantEntry = null,
targets: ?[]const ColorTargetState = null,
};
pub const ColorTargetState = extern struct {