Improve glsl parsing

- add legacy uniforms

Author: xCollateral

src/main/java/net/vulkanmod/render/engine/EGlProgram.java

@@ -54,6 +54,11 @@ public void setupUniforms(Pipeline pipeline, List<RenderPipeline.UniformDescript
 
         for (String samplerName : samplers) {
             var imageDescriptor = pipeline.getImageDescriptor(samplerName);
+
+            if (imageDescriptor == null) {
+                continue;
+            }
+
             int binding = imageDescriptor.getBinding();
             int imageIdx = imageDescriptor.imageIdx;
             this.uniformsByName.put(samplerName, new Uniform.Sampler(binding, imageIdx));

src/main/java/net/vulkanmod/render/engine/VkGpuDevice.java

@@ -27,6 +27,7 @@
 import net.vulkanmod.vulkan.shader.SPIRVUtils;
 import net.vulkanmod.vulkan.shader.converter.GLSLParser;
 import net.vulkanmod.vulkan.shader.converter.Lexer;
+import net.vulkanmod.vulkan.shader.descriptor.ImageDescriptor;
 import net.vulkanmod.vulkan.shader.descriptor.UBO;
 import net.vulkanmod.vulkan.texture.VulkanImage;
 import org.apache.commons.lang3.StringUtils;
@@ -365,11 +366,12 @@ private void compilePipeline(RenderPipeline renderPipeline, BiFunction<ResourceL
         }
 
         UBO[] ubos = parser.createUBOs();
+        List<ImageDescriptor> samplers = parser.getSamplerList();
 
         String vshProcessed = parser.getOutput(GLSLParser.Stage.VERTEX);
         String fshProcessed = parser.getOutput(GLSLParser.Stage.FRAGMENT);
 
-        builder.setUniforms(List.of(ubos), parser.getSamplerList());
+        builder.setUniforms(List.of(ubos), samplers);
 
         builder.setShaderSrc(SPIRVUtils.ShaderKind.VERTEX_SHADER, vshProcessed);
         builder.setShaderSrc(SPIRVUtils.ShaderKind.FRAGMENT_SHADER, fshProcessed);

src/main/java/net/vulkanmod/vulkan/shader/converter/Attribute.java

@@ -1,6 +1,6 @@
 package net.vulkanmod.vulkan.shader.converter;
 
-public class Attribute {
+public class Attribute implements GLSLParser.Node {
 
     String ioType;
     String type;
@@ -22,8 +22,8 @@ public void setLocation(int location) {
         this.location = location;
     }
 
-    public GLSLParser.Node getNode() {
-        return new GLSLParser.Node("attribute", "layout(location = %d) %s %s %s;\n".formatted(location, ioType, type, id));
+    @Override
+    public String getStringValue() {
+        return "layout(location = %d) %s %s %s;\n".formatted(location, ioType, type, id);
     }
-
 }