pco: pygen stubs

Signed-off-by: Simon Perretta <simon.perretta@imgtec.com>
Acked-by: Frank Binns <frank.binns@imgtec.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32258>

src/imagination/pco/meson.build

@@ -12,9 +12,49 @@ libpowervr_compiler_files = files(
   'pco_trans_nir.c',
 )
 
+pco_pygen_dep_files = files('pco_pygen_common.py', 'pco_isa.py', 'pco_ops.py')
+
+pco_common_h = custom_target(
+  'pco_common.h',
+  input : ['pco_common.h.py'],
+  output : 'pco_common.h',
+  command : [prog_python, '@INPUT@'],
+  capture : true,
+  depend_files : pco_pygen_dep_files,
+)
+
+pco_isa_h = custom_target(
+  'pco_isa.h',
+  input : ['pco_isa.h.py'],
+  output : 'pco_isa.h',
+  command : [prog_python, '@INPUT@'],
+  capture : true,
+  depend_files : pco_pygen_dep_files,
+)
+
+pco_ops_h = custom_target(
+  'pco_ops.h',
+  input : ['pco_ops.h.py'],
+  output : 'pco_ops.h',
+  command : [prog_python, '@INPUT@'],
+  capture : true,
+  depend_files : pco_pygen_dep_files,
+)
+
+idep_pco_pygen = declare_dependency(
+  sources : [
+    pco_common_h,
+    pco_isa_h,
+    pco_ops_h,
+  ],
+  include_directories : inc_powervr_compiler,
+)
+
+pco_pygen_c_files = []
+
 libpowervr_compiler = static_library(
   'powervr_compiler',
-  [libpowervr_compiler_files],
+  [libpowervr_compiler_files, pco_pygen_c_files],
   include_directories : [
     inc_imagination,
     inc_powervr_compiler,
@@ -24,7 +64,7 @@ libpowervr_compiler = static_library(
   ],
   # Suppress 'parameter passing for argument of type ... changed in GCC ...' warnings.
   c_args : [imagination_c_args, no_override_init_args, '-Wno-psabi'],
-  dependencies : [idep_mesautil, idep_nir],
+  dependencies : [idep_mesautil, idep_nir, idep_pco_pygen],
   gnu_symbol_visibility : 'hidden',
   install : false,
 )

src/imagination/pco/pco_common.h.py

@@ -0,0 +1,32 @@
+# Copyright © 2024 Imagination Technologies Ltd.
+# SPDX-License-Identifier: MIT
+
+from mako.template import Template
+from pco_pygen_common import *
+
+template = """/*
+ * Copyright © 2024 Imagination Technologies Ltd.
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#ifndef PCO_COMMON_H
+#define PCO_COMMON_H
+
+/**
+ * \\file pco_common.h
+ *
+ * \\brief PCO common definitions.
+ */
+
+#include "util/macros.h"
+
+#include <stdbool.h>
+
+#endif /* PCO_COMMON_H */"""
+
+def main():
+   print(Template(template).render())
+
+if __name__ == '__main__':
+   main()

src/imagination/pco/pco_internal.h

@@ -13,7 +13,9 @@
  * \brief PCO internal header.
  */
 
+#include "compiler/spirv/nir_spirv.h"
 #include "pco.h"
+#include "pco_common.h"
 #include "spirv/nir_spirv.h"
 #include "util/macros.h"
 

src/imagination/pco/pco_isa.h.py

@@ -0,0 +1,32 @@
+# Copyright © 2024 Imagination Technologies Ltd.
+# SPDX-License-Identifier: MIT
+
+from mako.template import Template
+from pco_isa import *
+
+template = """/*
+ * Copyright © 2024 Imagination Technologies Ltd.
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#ifndef PCO_ISA_H
+#define PCO_ISA_H
+
+/**
+ * \\file pco_isa.h
+ *
+ * \\brief PCO ISA definitions.
+ */
+
+#include "util/macros.h"
+
+#include <stdbool.h>
+
+#endif /* PCO_ISA_H */"""
+
+def main():
+   print(Template(template).render())
+
+if __name__ == '__main__':
+   main()

src/imagination/pco/pco_isa.py

@@ -0,0 +1,4 @@
+# Copyright © 2024 Imagination Technologies Ltd.
+# SPDX-License-Identifier: MIT
+
+from pco_pygen_common import *

src/imagination/pco/pco_ops.h.py

@@ -0,0 +1,34 @@
+# Copyright © 2024 Imagination Technologies Ltd.
+# SPDX-License-Identifier: MIT
+
+from mako.template import Template
+from pco_ops import *
+
+template = """/*
+ * Copyright © 2024 Imagination Technologies Ltd.
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#ifndef PCO_OPS_H
+#define PCO_OPS_H
+
+/**
+ * \\file pco_ops.h
+ *
+ * \\brief PCO op definitions and functions.
+ */
+
+#include "util/macros.h"
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdint.h>
+
+#endif /* PCO_OPS_H */"""
+
+def main():
+   print(Template(template).render())
+
+if __name__ == '__main__':
+   main()

src/imagination/pco/pco_ops.py

@@ -0,0 +1,4 @@
+# Copyright © 2024 Imagination Technologies Ltd.
+# SPDX-License-Identifier: MIT
+
+from pco_pygen_common import *

src/imagination/pco/pco_pygen_common.py

@@ -0,0 +1,13 @@
+# Copyright © 2024 Imagination Technologies Ltd.
+# SPDX-License-Identifier: MIT
+
+from enum import Enum, auto
+
+_ = None
+
+prefix = 'pco'
+
+class BaseType(Enum):
+   bool = auto()
+   uint = auto()
+   enum = auto()