More spirv compile shit

shaders/compile.bat

@@ -0,0 +1,2 @@
+for %%i in (*.frag) do glslangValidator -V %%i -o %%i.spv
+for %%i in (*.vert) do glslangValidator -V %%i -o %%i.spv

shaders/compile.ps1

@@ -1,4 +1,33 @@
-glslangValidator -V line.frag -o line_frag.spv
-glslangValidator -V line.vert -o line_vert.spv
-glslangValidator -V triangle.frag -o triangle_frag.spv
-glslangValidator -V triangle.vert -o triangle_vert.spv
+$compileHashFile = "compilehashes.xml"
+
+if (Get-ChildItem -File $compileHashFile -ErrorAction SilentlyContinue) {
+    $hashes = Import-Clixml $compileHashFile
+} else {
+    $hashes = @{}
+}
+
+function CompileShader($fileName) {
+    $spvFileName = "$fileName.spv"
+    $newHash = Get-FileHash -Path $fileName -Algorithm SHA1
+
+    $spvExists = $false
+    if (Get-ChildItem -File $spvFileName -ErrorAction SilentlyContinue) {
+        $spvExists = $true
+    }
+    
+    if ($spvExists -and $hashes.ContainsKey($fileName) -and $hashes[$fileName] -eq $newHash.Hash) {
+        Write-Output "Skipping $fileName"
+    } else {
+        glslangValidator -V $fileName -o $spvFileName
+        $hashes.$fileName = $newHash.Hash
+    }
+}
+
+Get-ChildItem -Filter *.vert | ForEach-Object {
+    CompileShader $_.Name
+}
+Get-ChildItem -Filter *.frag | ForEach-Object {
+    CompileShader $_.Name
+}
+
+Export-Clixml -Path $compileHashFile -InputObject $hashes

shaders/triangle.frag

@@ -40,5 +40,4 @@ void main() {
     vec3 specular_color = specular_value * specular_strength * light_color;
 
     out_color = vec4(ambient_color + diffuse_color + specular_color, 1.0) * texture(diffuse_tex, tex_coords);
-    // out_color = vec4(1, 0, 0, 1);
 }