gpu: add BlendState

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

gpu/src/TODO

@@ -392,11 +392,6 @@ typedef struct WGPURenderPassDepthStencilAttachment {
 
 
 
-typedef struct WGPUBlendState {
-    WGPUBlendComponent color;
-    WGPUBlendComponent alpha;
-} WGPUBlendState;
-
 typedef struct WGPURenderPassColorAttachment {
     WGPUTextureView view;
     WGPUTextureView resolveTarget;

gpu/src/main.zig

@@ -76,12 +76,13 @@ pub const ComputePipeline = @import("ComputePipeline.zig");
 
 // Data structures
 pub const Limits = @import("structs.zig").Limits;
-pub const BlendComponent = @import("structs.zig").BlendComponent;
 pub const Color = @import("structs.zig").Color;
 pub const Extent3D = @import("structs.zig").Extent3D;
 pub const Origin3D = @import("structs.zig").Origin3D;
 pub const StencilFaceState = @import("structs.zig").StencilFaceState;
 pub const VertexAttribute = @import("structs.zig").VertexAttribute;
+pub const BlendComponent = @import("structs.zig").BlendComponent;
+pub const BlendState = @import("structs.zig").BlendState;
 
 // Enumerations
 pub const Feature = @import("enums.zig").Feature;

gpu/src/structs.zig

@@ -33,12 +33,6 @@ pub const Limits = extern struct {
     max_compute_workgroups_per_dimension: u32,
 };
 
-pub const BlendComponent = extern struct {
-    operation: BlendOperation,
-    src_factor: BlendFactor,
-    dst_factor: BlendFactor,
-};
-
 pub const Color = extern struct {
     r: f64,
     g: f64,
@@ -70,3 +64,14 @@ pub const VertexAttribute = extern struct {
     offset: u64,
     shader_location: u32,
 };
+
+pub const BlendComponent = extern struct {
+    operation: BlendOperation,
+    src_factor: BlendFactor,
+    dst_factor: BlendFactor,
+};
+
+pub const BlendState = extern struct {
+    color: BlendComponent,
+    alpha: BlendComponent,
+};