WIP - Implementing separate pipelines

crates/yakui-vulkan/shaders/main.frag

@@ -3,27 +3,27 @@
 #define WORKFLOW_MAIN 0
 #define WORKFLOW_TEXT 1
 
-layout (location = 0) in vec4 in_color;
-layout (location = 1) in vec2 in_uv;
-layout (location = 0) out vec4 out_color;
+layout(location = 0) in vec4 in_color;
+layout(location = 1) in vec2 in_uv;
+layout(location = 0) out vec4 out_color;
+layout(constant_id = 0) const int WORKFLOW = 0;
 
 layout(set = 0, binding = 0) uniform sampler2D textures[1000];
 layout(push_constant) uniform push_constants {
     uint texture_id;
-    uint workflow;
 };
 
 void main() {
     if (texture_id == NO_TEXTURE) {
         out_color = in_color;
         return;
-    } 
-    
-    if (workflow == WORKFLOW_TEXT) {
+    }
+
+    if (WORKFLOW == WORKFLOW_TEXT) {
         float coverage = texture(textures[texture_id], in_uv).r;
         out_color = in_color * coverage;
     } else {
         vec4 user_texture = texture(textures[texture_id], in_uv);
         out_color = in_color * user_texture;
     }
-}
+}