updating spv parser

lib/sdl3/content/_cooked/msl/hello-triangle.vert.msl

@@ -3,6 +3,14 @@
 
 using namespace metal;
 
+struct type_TransformBuffer
+{
+    float4x4 modelMatrix;
+    float4x4 viewMatrix;
+    float4x4 projectionMatrix;
+    float time;
+};
+
 struct Scene
 {
     float4 color;
@@ -13,8 +21,19 @@ struct type_StructuredBuffer_Scene
     Scene _m0[1];
 };
 
-constant float2 _30 = {};
+struct Scene2
-constant float4 _31 = {};
+{
+    float4 color;
+    float4 lmfao;
+};
+
+struct type_StructuredBuffer_Scene2
+{
+    Scene2 _m0[1];
+};
+
+constant float2 _40 = {};
+constant float4 _41 = {};
 
 struct main0_out
 {
@@ -22,45 +41,45 @@ struct main0_out
     float4 gl_Position [[position]];
 };
 
-vertex main0_out main0(const device type_StructuredBuffer_Scene& test [[buffer(0)]], uint gl_VertexIndex [[vertex_id]])
+vertex main0_out main0(constant type_TransformBuffer& TransformBuffer [[buffer(0)]], const device type_StructuredBuffer_Scene& test [[buffer(1)]], const device type_StructuredBuffer_Scene2& test2 [[buffer(2)]], uint gl_VertexIndex [[vertex_id]])
 {
     main0_out out = {};
-    float4 _58;
+    float4 _68;
-    float2 _59;
+    float2 _69;
     if (gl_VertexIndex == 0u)
     {
-        _58 = test._m0[0u].color;
+        _68 = test._m0[0u].color;
-        _59 = float2(-1.0);
+        _69 = float2(-1.0);
     }
     else
     {
-        float4 _56;
+        float4 _66;
-        float2 _57;
+        float2 _67;
         if (gl_VertexIndex == 1u)
         {
-            _56 = test._m0[1u].color;
+            _66 = test2._m0[1u].color;
-            _57 = float2(1.0, -1.0);
+            _67 = float2(1.0, -1.0);
         }
         else
         {
-            bool _48 = gl_VertexIndex == 2u;
+            bool _58 = gl_VertexIndex == 2u;
-            float4 _53;
+            float4 _63;
-            if (_48)
+            if (_58)
             {
-                _53 = test._m0[2u].color;
+                _63 = test._m0[2u].color;
             }
             else
             {
-                _53 = _31;
+                _63 = _41;
             }
-            _56 = _53;
+            _66 = _63;
-            _57 = select(_30, float2(0.0, 1.0), bool2(_48));
+            _67 = select(_40, float2(0.0, 1.0), bool2(_58));
         }
-        _58 = _56;
+        _68 = _66;
-        _59 = _57;
+        _69 = _67;
     }
-    out.out_var_TEXCOORD0 = _58;
+    out.out_var_TEXCOORD0 = _68;
-    out.gl_Position = float4(_59, 0.0, 1.0);
+    out.gl_Position = TransformBuffer.modelMatrix * float4(_69, 0.0, 1.0);
     return out;
 }
 

lib/sdl3/content/hello-triangle.vert.hlsl

@@ -9,12 +9,27 @@ struct Output
     float4 Position : SV_Position;
 };
 
+struct Scene2
+{
+    float4 color;
+    float4 lmfao;
+};
+
 struct Scene
 {
     float4 color;
 };
 
+cbuffer TransformBuffer : register(b0, space1)
+{
+    float4x4 modelMatrix;
+    float4x4 viewMatrix;
+    float4x4 projectionMatrix;
+    float time;
+};
+
 StructuredBuffer<Scene> test: register(t0, space0);
+StructuredBuffer<Scene2> test2: register(t1, space0);
 
 Output main(Input input)
 {
@@ -30,7 +45,7 @@ Output main(Input input)
         if (input.VertexIndex == 1)
         {
             pos = float2(1.0f, -1.0f);
-            output.Color = test[1].color;
+            output.Color = test2[1].color;
         }
         else
         {
@@ -41,6 +56,6 @@ Output main(Input input)
             }
         }
     }
-    output.Position = float4(pos, 0.0f, 1.0f);
+    output.Position = mul(modelMatrix, float4(pos, 0.0f, 1.0f));
     return output;
 }

lib/sdl3/content/hello-triangle.vert.json

@@ -6,7 +6,38 @@
         }
     ],
     "types" : {
-        "_6" : {
+        "_5" : {
+            "name" : "type.TransformBuffer",
+            "members" : [
+                {
+                    "name" : "modelMatrix",
+                    "type" : "mat4",
+                    "offset" : 0,
+                    "matrix_stride" : 16,
+                    "row_major" : true
+                },
+                {
+                    "name" : "viewMatrix",
+                    "type" : "mat4",
+                    "offset" : 64,
+                    "matrix_stride" : 16,
+                    "row_major" : true
+                },
+                {
+                    "name" : "projectionMatrix",
+                    "type" : "mat4",
+                    "offset" : 128,
+                    "matrix_stride" : 16,
+                    "row_major" : true
+                },
+                {
+                    "name" : "time",
+                    "type" : "float",
+                    "offset" : 192
+                }
+            ]
+        },
+        "_8" : {
             "name" : "Scene",
             "members" : [
                 {
@@ -16,12 +47,12 @@
                 }
             ]
         },
-        "_5" : {
+        "_7" : {
             "name" : "type.StructuredBuffer.Scene",
             "members" : [
                 {
                     "name" : "_m0",
-                    "type" : "_6",
+                    "type" : "_8",
                     "array" : [
                         0
                     ],
@@ -32,6 +63,38 @@
                     "array_stride" : 16
                 }
             ]
+        },
+        "_11" : {
+            "name" : "Scene2",
+            "members" : [
+                {
+                    "name" : "color",
+                    "type" : "vec4",
+                    "offset" : 0
+                },
+                {
+                    "name" : "lmfao",
+                    "type" : "vec4",
+                    "offset" : 16
+                }
+            ]
+        },
+        "_10" : {
+            "name" : "type.StructuredBuffer.Scene2",
+            "members" : [
+                {
+                    "name" : "_m0",
+                    "type" : "_11",
+                    "array" : [
+                        0
+                    ],
+                    "array_size_is_literal" : [
+                        true
+                    ],
+                    "offset" : 0,
+                    "array_stride" : 32
+                }
+            ]
         }
     },
     "outputs" : [
@@ -43,12 +106,29 @@
     ],
     "ssbos" : [
         {
-            "type" : "_5",
+            "type" : "_7",
             "name" : "test",
             "readonly" : true,
             "block_size" : 0,
             "set" : 0,
             "binding" : 0
+        },
+        {
+            "type" : "_10",
+            "name" : "test2",
+            "readonly" : true,
+            "block_size" : 0,
+            "set" : 0,
+            "binding" : 1
+        }
+    ],
+    "ubos" : [
+        {
+            "type" : "_5",
+            "name" : "type.TransformBuffer",
+            "block_size" : 196,
+            "set" : 1,
+            "binding" : 0
         }
     ]
 }

lib/sdl3/shaderTypes/shaderTypes.zig

@@ -92,3 +92,17 @@ pub const FieldDetail = struct {
     size: usize,
     offset: usize,
 };
+
+pub const ShaderLoadArgs = struct {
+    num_samplers: u32, // The number of samplers defined in the shader.
+    num_storage_textures: u32, // The number of storage textures defined in the shader.
+    num_storage_buffers: u32, // The number of storage buffers defined in the shader.
+    num_uniform_buffers: u32, // The number of uniform buffers defined in the shader.
+};
+
+pub const BufferInfo = union(enum(usize)) {
+    sampler: usize, // sampler
+    texture: usize, // storage texture
+    storage: usize, // storate buffer object
+    uniform: usize, // uniform/push constant
+};

lib/sdl3/spvreflect/reflected.zig

@@ -10,6 +10,32 @@ pub const vec4 = shaderTypes.vec4;
 pub const mat4 = shaderTypes.mat4;
 pub const float = shaderTypes.float;
 
+pub const BufferInfo = shaderTypes.BufferInfo;
 pub const Scene = struct {
     color: vec4,
+
+    pub const Buffer: BufferInfo = .{ .storage = 0 };
+};
+
+pub const Scene2 = struct {
+    color: vec4,
+    lmfao: vec4,
+
+    pub const Buffer: BufferInfo = .{ .storage = 1 };
+};
+
+pub const TransformBuffer = struct {
+    modelMatrix: mat4,
+    viewMatrix: mat4,
+    projectionMatrix: mat4,
+    time: float,
+
+    pub const Buffer: BufferInfo = .{ .uniform = 0 };
+};
+
+pub const LoadArgs = shaderTypes.ShaderLoadArgs{
+    .num_samplers = 0, // The number of samplers defined in the shader.
+    .num_storage_textures = 0, // The number of storage textures defined in the shader.
+    .num_storage_buffers = 2, // The number of storage buffers defined in the shader.
+    .num_uniform_buffers = 0, // The number of uniform buffers defined in the shader.
 };

lib/sdl3/spvreflect/spvreflect.py

@@ -27,7 +27,7 @@ def generate():
 
     with open(infile) as f:
         reflect = json.load(f)
-        print(reflect)
+        print(json.dumps(reflect, indent=2))
 
 
     ostring = "pub const shaderTypes = @import(\"shaderTypes\");\n"
@@ -42,35 +42,72 @@ pub const vec4 = shaderTypes.vec4;
 pub const mat4 = shaderTypes.mat4;
 pub const float = shaderTypes.float;
 
+pub const BufferInfo = shaderTypes.BufferInfo;
 """
 
     types = reflect['types']
-    for t in types:
-        name = types[t]['name'];
 
-        if 'type.StructuredBuffer' in name:
+    storageIndex = 0
-            continue
+    for ssbo in reflect['ssbos']:
+        zs = parseTypeToZig(types, ssbo['type'], "storage", storageIndex)
+        storageIndex += 1
+        ostring += zs + "\n"
 
-        if name.startswith("type.StructuredBuffer"):
+    uniformIndex = 0
-            name = name[len("type.StructuredBuffer"):]
+    for uniform in reflect['ubos']:
+        zs = parseTypeToZig(types, uniform['type'], "uniform", uniformIndex)
+        ostring += zs + "\n"
 
-        zs = f"pub const {name} = " + 'struct {\n'
+    zs = "pub const LoadArgs = shaderTypes.ShaderLoadArgs{"
 
-        for member in types[t]['members']:
+    samplerIndex = 0
-            zs += member['name'] + ':' + member['type'] + ',\n'
+    textureIndex = 0
 
-        zs += "};\n"
+    zs += f"""
-
+    .num_samplers = {samplerIndex}, // The number of samplers defined in the shader.
-        print(zs)
+    .num_storage_textures = {textureIndex}, // The number of storage textures defined in the shader.
+    .num_storage_buffers = {storageIndex}, // The number of storage buffers defined in the shader.
+    .num_uniform_buffers = {uniformIndex}, // The number of uniform buffers defined in the shader.
+    """
+    zs += "};"
 
     ostring += zs
 
-
+    with open(outfile, 'w', newline='\n') as f:
-    with open(outfile, 'w') as f:
         f.write(ostring)
 
+
     subprocess.run(['zig', 'fmt', outfile])
 
+def parseTypeToZig(types, typeId, bufferType, bufferIndex):
+
+    displayName = types[typeId]['name']
+
+    isStructured = False
+
+    typeInner = types[typeId]
+    arrayStride = None
+
+    if "type.StructuredBuffer." in displayName:
+        displayName = displayName[len("type.StructuredBuffer."):]
+        isStructured = True
+        arrayStride = typeInner['members'][0]['array_stride']
+        typeInner = types[typeInner['members'][0]['type']]
+
+    if "type." in displayName:
+        displayName = displayName[len("type."):]
+
+    zs = "pub const " + displayName + " = struct {"
+
+    for t in typeInner['members']:
+        zs += t['name'] + ':' + t['type'] + ','
+
+    zs += '\n\npub const Buffer: BufferInfo = .{ .' + bufferType + ' = ' + str(bufferIndex) + ' };'
+
+    zs += "};\n"
+
+    return zs
+
 if __name__ == '__main__':
     generate()