--- a/src/glslang/glslang.nim	Wed Dec 14 00:49:35 2022 +0700
+++ b/src/glslang/glslang.nim	Fri Dec 16 00:05:41 2022 +0700
@@ -1,86 +1,75 @@
-# required to link the GLSL compiler
-{.passl: "-Lthirdparty/glslang/lib/" .}
-{.passl: "-Lthirdparty/spirv-tools/lib/" .}
-
-{.passl: "-lglslang" .}
-{.passl: "-lglslang-default-resource-limits" .}
-{.passl: "-lHLSL" .}
-{.passl: "-lMachineIndependent" .}
-{.passl: "-lGenericCodeGen" .}
-{.passl: "-lOSDependent" .}
-{.passl: "-lOGLCompiler" .}
-{.passl: "-lSPIRV" .}
-{.passl: "-lSPIRV-Tools-opt" .}
-
-{.passl: "-lSPIRV-Tools" .}
-{.passl: "-lSPIRV-Tools-diff" .}
-{.passl: "-lSPIRV-Tools-fuzz" .}
-{.passl: "-lSPIRV-Tools-link" .}
-{.passl: "-lSPIRV-Tools-lint" .}
-{.passl: "-lSPIRV-Tools-opt" .}
-{.passl: "-lSPIRV-Tools-reduce" .}
-
-{.passl: "-lstdc++" .}
-{.passl: "-lm" .}
-
 import glslang_c_interface
 import glslang_c_shader_types
 
+export
+  glslang_stage_t,
+  glslang_initialize_process,
+  glslang_finalize_process
 
-proc compileShaderToSPIRV_Vulkan*(stage: glslang_stage_t , shaderSource: string, fileName: string): seq[uint32] =
-    var input = glslang_input_t(
-        language: GLSLANG_SOURCE_GLSL,
-        stage: stage,
-        client: GLSLANG_CLIENT_VULKAN,
-        client_version: GLSLANG_TARGET_VULKAN_1_2,
-        target_language: GLSLANG_TARGET_SPV,
-        target_language_version: GLSLANG_TARGET_SPV_1_5,
-        code: shaderSource,
-        default_version: 100,
-        default_profile: GLSLANG_NO_PROFILE,
-        force_default_version_and_profile: false.cint,
-        forward_compatible: false.cint,
-        messages: GLSLANG_MSG_DEFAULT_BIT,
-        resource: glslang_default_resource(),
-    )
+type
+  ShaderVersion = enum
+    ES_VERSION = 100
+    DESKTOP_VERSION = 110
 
-    let shader = glslang_shader_create(addr(input))
+proc compileGLSLToSPIRV*(stage: glslang_stage_t, shaderSource: string, fileName: string): seq[uint32] =
+  var input = glslang_input_t(
+    stage: stage,
+    language: GLSLANG_SOURCE_GLSL,
+    client: GLSLANG_CLIENT_VULKAN,
+    client_version: GLSLANG_TARGET_VULKAN_1_2,
+    target_language: GLSLANG_TARGET_SPV,
+    target_language_version: GLSLANG_TARGET_SPV_1_5,
+    code: cstring(shaderSource),
+    default_version: ord(DESKTOP_VERSION),
+    default_profile: GLSLANG_CORE_PROFILE,
+    force_default_version_and_profile: false.cint,
+    forward_compatible: false.cint,
+    messages: GLSLANG_MSG_DEBUG_INFO_BIT,
+    resource: glslang_default_resource(),
+  )
 
-    if not bool(glslang_shader_preprocess(shader, addr(input))):
-        echo "GLSL preprocessing failed " & fileName
-        echo glslang_shader_get_info_log(shader)
-        echo glslang_shader_get_info_debug_log(shader)
-        echo input.code
-        glslang_shader_delete(shader)
-        return
+  var shader = glslang_shader_create(addr(input))
 
-    if not bool(glslang_shader_parse(shader, addr(input))):
-        echo "GLSL parsing failed " & fileName
-        echo glslang_shader_get_info_log(shader)
-        echo glslang_shader_get_info_debug_log(shader)
-        echo glslang_shader_get_preprocessed_code(shader)
-        glslang_shader_delete(shader)
-        return
+  if not bool(glslang_shader_preprocess(shader, addr(input))):
+      echo "GLSL preprocessing failed " & fileName
+      echo glslang_shader_get_info_log(shader)
+      echo glslang_shader_get_info_debug_log(shader)
+      echo input.code
+      glslang_shader_delete(shader)
+      return
 
-    let program: ptr glslang_program_t = glslang_program_create()
-    glslang_program_add_shader(program, shader)
+  if not bool(glslang_shader_parse(shader, addr(input))):
+      echo "GLSL parsing failed " & fileName
+      echo glslang_shader_get_info_log(shader)
+      echo glslang_shader_get_info_debug_log(shader)
+      echo glslang_shader_get_preprocessed_code(shader)
+      glslang_shader_delete(shader)
+      return
+
+  var program: ptr glslang_program_t = glslang_program_create()
+  glslang_program_add_shader(program, shader)
 
-    if not bool(glslang_program_link(program, ord(GLSLANG_MSG_SPV_RULES_BIT) or ord(GLSLANG_MSG_VULKAN_RULES_BIT))):
-        echo "GLSL linking failed " & fileName
-        echo glslang_program_get_info_log(program)
-        echo glslang_program_get_info_debug_log(program)
-        glslang_program_delete(program)
-        glslang_shader_delete(shader)
-        return
+  if not bool(glslang_program_link(program, ord(GLSLANG_MSG_SPV_RULES_BIT) or ord(GLSLANG_MSG_VULKAN_RULES_BIT))):
+      echo "GLSL linking failed " & fileName
+      echo glslang_program_get_info_log(program)
+      echo glslang_program_get_info_debug_log(program)
+      glslang_program_delete(program)
+      glslang_shader_delete(shader)
+      return
 
-    glslang_program_SPIRV_generate(program, stage)
+  glslang_program_SPIRV_generate(program, stage)
 
-    result = newSeq[uint32](glslang_program_SPIRV_get_size(program))
-    glslang_program_SPIRV_get(program, addr(result[0]))
+  result = newSeq[uint32](glslang_program_SPIRV_get_size(program))
+  glslang_program_SPIRV_get(program, addr(result[0]))
+
+  var spirv_messages: cstring = glslang_program_SPIRV_get_messages(program)
+  if spirv_messages != nil:
+      echo "(%s) %s\b", fileName, spirv_messages
 
-    var spirv_messages: cstring = glslang_program_SPIRV_get_messages(program)
-    if spirv_messages != nil:
-        echo "(%s) %s\b", fileName, spirv_messages
+  glslang_program_delete(program)
+  glslang_shader_delete(shader)
 
-    glslang_program_delete(program)
-    glslang_shader_delete(shader)
+template checkGlslangResult*(call: untyped) =
+  let value = call
+  if value != 1:
+    raise newException(Exception, "glgslang error: " & astToStr(call) & " returned " & $value)