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@@ -0,0 +1,500 @@
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+#-------------------------------------------------------------------------------
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+# gen_jai.py
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+#
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+# Generate Jai bindings.
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+#-------------------------------------------------------------------------------
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+import gen_ir
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+import gen_util as util
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+import os, shutil, sys
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+
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+bindings_root = 'sokol-jai'
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+c_root = f'{bindings_root}/sokol/c'
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+module_root = f'{bindings_root}/sokol'
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+
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+module_names = {
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+ 'slog_': 'log',
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+ 'sg_': 'gfx',
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+ 'sapp_': 'app',
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+ 'stm_': 'time',
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+ 'saudio_': 'audio',
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+ 'sgl_': 'gl',
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+ 'sdtx_': 'debugtext',
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+ 'sshape_': 'shape',
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+ 'sglue_': 'glue',
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+}
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+
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+system_libs = {
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+ 'sg_': {
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+ 'windows': {
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+ 'd3d11': '#system_library,link_always "gdi32"; #system_library,link_always "dxguid"; #system_library,link_always "user32"; #system_library,link_always "shell32"; #system_library,link_always "d3d11";',
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+ 'gl': '#system_library,link_always "gdi32"; #system_library,link_always "dxguid"; #system_library,link_always "user32"; #system_library,link_always "shell32";',
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+ },
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+ 'macos': {
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+ 'metal': '#library "../../libclang_rt.osx"; #system_library,link_always "Cocoa"; #system_library,link_always "QuartzCore"; #system_library,link_always "Metal"; #system_library,link_always "MetalKit";',
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+ 'gl': '#system_library,link_always "Cocoa"; #system_library,link_always "QuartzCore"; #system_library,link_always "OpenGL";',
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+ },
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+ 'linux': {
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+ 'gl': '#system_library,link_always "libXcursor"; #system_library,link_always "libX11"; #system_library,link_always "libXi"; #system_library,link_always "libGL";',
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+ }
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+ },
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+ 'sapp_': {
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+ 'windows': {
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+ 'd3d11': '#system_library,link_always "gdi32"; #system_library,link_always "dxguid"; #system_library,link_always "user32"; #system_library,link_always "shell32";',
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+ 'gl': '#system_library,link_always "gdi32"; #system_library,link_always "dxguid"; #system_library,link_always "user32"; #system_library,link_always "shell32";',
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+ },
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+ 'macos': {
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+ 'metal': '#library "../../libclang_rt.osx"; #system_library,link_always "Cocoa"; #system_library,link_always "QuartzCore";',
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+ 'gl': '#system_library,link_always "Cocoa"; #system_library,link_always "QuartzCore";',
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+ },
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+ 'linux': {
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+ 'gl': '#system_library,link_always "libXcursor"; #system_library,link_always "libX11"; #system_library,link_always "libXi"; #system_library,link_always "libGL";',
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+ }
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+ },
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+ 'saudio_': {
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+ 'windows': {
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+ 'd3d11': '#system_library,link_always "ole32";',
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+ 'gl': '#system_library,link_always "ole32";',
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+ },
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+ 'macos': {
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+ 'metal': '#system_library,link_always "AudioToolbox";',
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+ 'gl': '#system_library,link_always "AudioToolbox";',
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+ },
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+ 'linux': {
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+ 'gl': '#system_library,link_always "asound"; #system_library,link_always "dl"; #system_library,link_always "pthread";',
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+ }
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+ }
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+}
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+
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+c_source_names = {
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+ 'slog_': 'sokol_log.c',
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+ 'sg_': 'sokol_gfx.c',
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+ 'sapp_': 'sokol_app.c',
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+ 'sapp_sg': 'sokol_glue.c',
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+ 'stm_': 'sokol_time.c',
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+ 'saudio_': 'sokol_audio.c',
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+ 'sgl_': 'sokol_gl.c',
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+ 'sdtx_': 'sokol_debugtext.c',
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+ 'sshape_': 'sokol_shape.c',
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+ 'sglue_': 'sokol_glue.c',
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+}
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+
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+ignores = [
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+ 'sdtx_printf',
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+ 'sdtx_vprintf',
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+ 'sg_install_trace_hooks',
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+ 'sg_trace_hooks',
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+]
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+
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+# NOTE: syntax for function results: "func_name.RESULT"
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+overrides = {
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+ 'context': 'ctx', # reserved keyword
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+ 'SGL_NO_ERROR': 'SGL_ERROR_NO_ERROR',
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+}
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+
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+prim_types = {
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+ 'int': 's32',
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+ 'bool': 'bool',
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+ 'char': 'u8',
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+ 'int8_t': 's8',
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+ 'uint8_t': 'u8',
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+ 'int16_t': 's16',
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+ 'uint16_t': 'u16',
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+ 'int32_t': 's32',
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+ 'uint32_t': 'u32',
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+ 'int64_t': 's64',
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+ 'uint64_t': 'u64',
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+ 'float': 'float',
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+ 'double': 'float64',
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+ 'uintptr_t': 'u64',
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+ 'intptr_t': 's64',
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+ 'size_t': 'u64'
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+}
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+
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+prim_defaults = {
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+ 'int': '0',
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+ 'bool': 'false',
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+ 'int8_t': '0',
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+ 'uint8_t': '0',
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+ 'int16_t': '0',
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+ 'uint16_t': '0',
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+ 'int32_t': '0',
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+ 'uint32_t': '0',
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+ 'int64_t': '0',
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+ 'uint64_t': '0',
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+ 'float': '0.0',
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+ 'double': '0.0',
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+ 'uintptr_t': '0',
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+ 'intptr_t': '0',
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+ 'size_t': '0'
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+}
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+
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+struct_types = []
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+enum_types = []
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+enum_items = {}
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+out_lines = ''
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+
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+def reset_globals():
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+ global struct_types
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+ global enum_types
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+ global enum_items
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+ global out_lines
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+ struct_types = []
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+ enum_types = []
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+ enum_items = {}
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+ out_lines = ''
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+
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+def l(s):
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+ global out_lines
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+ out_lines += s + '\n'
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+
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+def check_override(name, default=None):
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+ if name in overrides:
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+ return overrides[name]
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+ elif default is None:
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+ return name
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+ else:
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+ return default
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+
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+def check_ignore(name):
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+ return name in ignores
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+
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+# PREFIX_BLA_BLUB to BLA_BLUB, prefix_bla_blub to bla_blub
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+def as_snake_case(s, prefix):
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+ outp = s
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+ if outp.lower().startswith(prefix):
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+ outp = outp[len(prefix):]
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+ return outp
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+
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+def get_jai_module_path(c_prefix):
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+ return f'{module_root}/{module_names[c_prefix]}'
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+
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+def get_csource_path(c_prefix):
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+ return f'{c_root}/{c_source_names[c_prefix]}'
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+
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+def make_jai_module_directory(c_prefix):
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+ path = get_jai_module_path(c_prefix)
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+ if not os.path.isdir(path):
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+ os.makedirs(path)
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+
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+def as_prim_type(s):
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+ return prim_types[s]
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+
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+def as_struct_or_enum_type(s, prefix):
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+ return s
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+
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+# PREFIX_ENUM_BLA_BLUB => BLA_BLUB, _PREFIX_ENUM_BLA_BLUB => BLA_BLUB
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+def as_enum_item_name(s):
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+ outp = s.lstrip('_')
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+ parts = outp.split('_')[2:]
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+ outp = '_'.join(parts)
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+ if outp[0].isdigit():
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+ outp = '_' + outp
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+ return outp
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+
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+def enum_default_item(enum_name):
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+ return enum_items[enum_name][0]
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+
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+def is_prim_type(s):
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+ return s in prim_types
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+
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+def is_int_type(s):
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+ return s == "int"
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+
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+def is_struct_type(s):
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+ return s in struct_types
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+
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+def is_enum_type(s):
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+ return s in enum_types
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+
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+def is_const_prim_ptr(s):
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+ for prim_type in prim_types:
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+ if s == f"const {prim_type} *":
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+ return True
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+ return False
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+
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+def is_prim_ptr(s):
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+ for prim_type in prim_types:
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+ if s == f"{prim_type} *":
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+ return True
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+ return False
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+
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+def is_const_struct_ptr(s):
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+ for struct_type in struct_types:
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+ if s == f"const {struct_type} *":
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+ return True
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+ return False
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+
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+def type_default_value(s):
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+ return prim_defaults[s]
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+
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+def map_type(type, prefix, sub_type):
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+ if sub_type not in ['c_arg', 'struct_field']:
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+ sys.exit(f"Error: map_type(): unknown sub_type '{sub_type}")
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+ if type == "void":
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+ return ""
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+ elif is_struct_type(type):
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+ return as_struct_or_enum_type(type, prefix)
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+ elif is_enum_type(type):
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+ return as_struct_or_enum_type(type, prefix)
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+ elif util.is_void_ptr(type):
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+ return "*void"
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+ elif util.is_const_void_ptr(type):
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+ return "*void"
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+ elif util.is_string_ptr(type):
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+ return "*u8"
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+ elif is_const_struct_ptr(type):
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+ return f"*{as_struct_or_enum_type(util.extract_ptr_type(type), prefix)}"
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+ elif is_prim_ptr(type):
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+ return f"*{as_prim_type(util.extract_ptr_type(type))}"
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+ elif is_const_prim_ptr(type):
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+ return f"*{as_prim_type(util.extract_ptr_type(type))}"
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+ elif util.is_1d_array_type(type):
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+ array_type = util.extract_array_type(type)
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+ array_sizes = util.extract_array_sizes(type)
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+ return f"[{array_sizes[0]}]{map_type(array_type, prefix, sub_type)}"
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+ elif util.is_2d_array_type(type):
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+ array_type = util.extract_array_type(type)
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+ array_sizes = util.extract_array_sizes(type)
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+ return f"[{array_sizes[0]}][{array_sizes[1]}]{map_type(array_type, prefix, sub_type)}"
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+ elif util.is_func_ptr(type):
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+ res_type = funcptr_result_c(type, prefix)
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+ res_str = '' if res_type == '' else f' -> {res_type}'
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+ return f'({funcptr_args_c(type, prefix)}){res_str} #c_call'
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+ elif is_prim_type(type):
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+ return as_prim_type(type)
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+ else:
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+ sys.exit(f"Error map_type(): unknown type '{type}'")
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+
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+def funcdecl_args_c(decl, prefix):
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+ s = ''
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+ func_name = decl['name']
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+ for param_decl in decl['params']:
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+ if s != '':
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+ s += ', '
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+ param_name = param_decl['name']
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+ param_type = check_override(f'{func_name}.{param_name}', default=param_decl['type'])
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+ s += f"{param_name}: {map_type(param_type, prefix, 'c_arg')}"
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+ return s
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+
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+def funcptr_args_c(field_type, prefix):
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+ tokens = field_type[field_type.index('(*)')+4:-1].split(',')
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+ s = ''
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+ arg_index = 0
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+ for token in tokens:
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+ arg_type = token.strip()
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+ if s != '':
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+ s += ', '
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+ c_arg = map_type(arg_type, prefix, 'c_arg')
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+ if c_arg == '':
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+ return ''
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+ else:
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+ s += f'a{arg_index}: {c_arg}'
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+ arg_index += 1
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+ return s
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+
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+def funcptr_result_c(field_type, prefix):
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+ res_type = field_type[:field_type.index('(*)')].strip()
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+ return map_type(res_type, prefix, 'c_arg')
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+
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+def funcdecl_result_c(decl, prefix):
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+ func_name = decl['name']
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+ decl_type = decl['type']
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+ res_c_type = decl_type[:decl_type.index('(')].strip()
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+ return map_type(check_override(f'{func_name}.RESULT', default=res_c_type), prefix, 'c_arg')
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+
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+def get_system_libs(module, platform, backend):
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+ if module in system_libs:
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+ if platform in system_libs[module]:
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+ if backend in system_libs[module][platform]:
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+ libs = system_libs[module][platform][backend]
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+ if libs != '':
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+ return f"{libs}"
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+ return ''
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+
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+def gen_c_imports(inp, c_prefix, prefix):
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+ module_name = inp["module"]
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+ clib_prefix = f'sokol_{module_name}'
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+ clib_import = f'{clib_prefix}_clib'
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+ windows_d3d11_libs = get_system_libs(prefix, 'windows', 'd3d11')
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+ windows_gl_libs = get_system_libs(prefix, 'windows', 'gl')
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+ macos_metal_libs = get_system_libs(prefix, 'macos', 'metal')
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+ macos_gl_libs = get_system_libs(prefix, 'macos', 'gl')
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+ linux_gl_libs = get_system_libs(prefix, 'linux', 'gl')
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+ l( '#module_parameters(DEBUG := false, USE_GL := false, USE_DLL := false);')
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+ l( '')
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+ l( '#scope_export;')
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+ l( '')
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+ l( '#if OS == .WINDOWS {')
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+ l( ' #if USE_DLL {')
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+ l( ' #if USE_GL {')
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+ l(f' {windows_gl_libs}')
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+ l(f' #if DEBUG {{ {clib_import} :: #library "{clib_prefix}_windows_x64_gl_debug"; }}')
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+ l(f' else {{ {clib_import} :: #library "{clib_prefix}_windows_x64_gl_release"; }}')
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+ l( ' } else {')
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+ l(f' {windows_d3d11_libs}')
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+ l(f' #if DEBUG {{ {clib_import} :: #library "{clib_prefix}_windows_x64_d3d11_debug"; }}')
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+ l(f' else {{ {clib_import} :: #library "{clib_prefix}_windows_x64_d3d11_release"; }}')
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+ l( ' }')
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+ l( ' } else {')
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+ l( ' #if USE_GL {')
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+ l(f' {windows_gl_libs}')
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+ l(f' #if DEBUG {{ {clib_import} :: #library,no_dll "{clib_prefix}_windows_x64_gl_debug"; }}')
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+ l(f' else {{ {clib_import} :: #library,no_dll "{clib_prefix}_windows_x64_gl_release"; }}')
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+ l( ' } else {')
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+ l(f' {windows_d3d11_libs}')
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+ l(f' #if DEBUG {{ {clib_import} :: #library,no_dll "{clib_prefix}_windows_x64_d3d11_debug"; }}')
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+ l(f' else {{ {clib_import} :: #library,no_dll "{clib_prefix}_windows_x64_d3d11_release"; }}')
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+ l( ' }')
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+ l( ' }')
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+ l( '}')
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+ l( 'else #if OS == .MACOS {')
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+ l( ' #if USE_DLL {')
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+ l(f' #if USE_GL && CPU == .ARM64 && DEBUG {{ {clib_import} :: #library "../dylib/sokol_dylib_macos_arm64_gl_debug.dylib"; }}')
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+ l(f' else #if USE_GL && CPU == .ARM64 && !DEBUG {{ {clib_import} :: #library "../dylib/sokol_dylib_macos_arm64_gl_release.dylib"; }}')
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+ l(f' else #if USE_GL && CPU == .X64 && DEBUG {{ {clib_import} :: #library "../dylib/sokol_dylib_macos_x64_gl_debug.dylib"; }}')
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+ l(f' else #if USE_GL && CPU == .X64 && !DEBUG {{ {clib_import} :: #library "../dylib/sokol_dylib_macos_x64_gl_release.dylib"; }}')
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+ l(f' else #if !USE_GL && CPU == .ARM64 && DEBUG {{ {clib_import} :: #library "../dylib/sokol_dylib_macos_arm64_metal_debug.dylib"; }}')
|
|
|
+ l(f' else #if !USE_GL && CPU == .ARM64 && !DEBUG {{ {clib_import} :: #library "../dylib/sokol_dylib_macos_arm64_metal_release.dylib"; }}')
|
|
|
+ l(f' else #if !USE_GL && CPU == .X64 && DEBUG {{ {clib_import} :: #library "../dylib/sokol_dylib_macos_x64_metal_debug.dylib"; }}')
|
|
|
+ l(f' else #if !USE_GL && CPU == .X64 && !DEBUG {{ {clib_import} :: #library "../dylib/sokol_dylib_macos_x64_metal_release.dylib"; }}')
|
|
|
+ l( ' } else {')
|
|
|
+ l( ' #if USE_GL {')
|
|
|
+ l(f' {macos_gl_libs}')
|
|
|
+ l( ' #if CPU == .ARM64 {')
|
|
|
+ l(f' #if DEBUG {{ {clib_import} :: #library,no_dll "{clib_prefix}_macos_arm64_gl_debug"; }}')
|
|
|
+ l(f' else {{ {clib_import} :: #library,no_dll "{clib_prefix}_macos_arm64_gl_release"; }}')
|
|
|
+ l( ' } else {')
|
|
|
+ l(f' #if DEBUG {{ {clib_import} :: #library,no_dll "{clib_prefix}_macos_x64_gl_debug"; }}')
|
|
|
+ l(f' else {{ {clib_import} :: #library,no_dll "{clib_prefix}_macos_x64_gl_release"; }}')
|
|
|
+ l( ' }')
|
|
|
+ l( ' } else {')
|
|
|
+ l(f' {macos_metal_libs}')
|
|
|
+ l( ' #if CPU == .ARM64 {')
|
|
|
+ l(f' #if DEBUG {{ {clib_import} :: #library,no_dll "{clib_prefix}_macos_arm64_metal_debug"; }}')
|
|
|
+ l(f' else {{ {clib_import} :: #library,no_dll "{clib_prefix}_macos_arm64_metal_release"; }}')
|
|
|
+ l( ' } else {')
|
|
|
+ l(f' #if DEBUG {{ {clib_import} :: #library,no_dll "{clib_prefix}_macos_x64_metal_debug"; }}')
|
|
|
+ l(f' else {{ {clib_import} :: #library,no_dll "{clib_prefix}_macos_x64_metal_release"; }}')
|
|
|
+ l( ' }')
|
|
|
+ l( ' }')
|
|
|
+ l( ' }')
|
|
|
+ l( '} else #if OS == .LINUX {')
|
|
|
+ if linux_gl_libs:
|
|
|
+ l(f' {linux_gl_libs}')
|
|
|
+ l(f' #if DEBUG {{ {clib_import} :: #library,no_dll "{clib_prefix}_linux_x64_gl_debug"; }}')
|
|
|
+ l(f' else {{ {clib_import} :: #library,no_dll "{clib_prefix}_linux_x64_gl_release"; }}')
|
|
|
+ l( '} else {')
|
|
|
+ l( ' log_error("This OS is currently not supported");')
|
|
|
+ l( '}')
|
|
|
+ l( '')
|
|
|
+
|
|
|
+ prefix = inp['prefix']
|
|
|
+ for decl in inp['decls']:
|
|
|
+ if decl['kind'] == 'func' and not decl['is_dep'] and not check_ignore(decl['name']):
|
|
|
+ args = funcdecl_args_c(decl, prefix)
|
|
|
+ res_type = funcdecl_result_c(decl, prefix)
|
|
|
+ res_str = '-> void' if res_type == '' else f'-> {res_type}'
|
|
|
+ l(f"{decl['name']} :: ({args}) {res_str} #foreign {clib_import};")
|
|
|
+ l('')
|
|
|
+
|
|
|
+def gen_consts(decl, prefix):
|
|
|
+ for item in decl['items']:
|
|
|
+ item_name = check_override(item['name'])
|
|
|
+ l(f"{as_snake_case(item_name, prefix)} :: {item['value']};")
|
|
|
+ l('')
|
|
|
+
|
|
|
+def gen_struct(decl, prefix):
|
|
|
+ c_struct_name = check_override(decl['name'])
|
|
|
+ struct_name = as_struct_or_enum_type(c_struct_name, prefix)
|
|
|
+ l(f'{struct_name} :: struct {{')
|
|
|
+ for field in decl['fields']:
|
|
|
+ field_name = check_override(field['name'])
|
|
|
+ field_type = map_type(check_override(f'{c_struct_name}.{field_name}', default=field['type']), prefix, 'struct_field')
|
|
|
+ # any field name starting with _ is considered private
|
|
|
+ if field_name.startswith('_'):
|
|
|
+ l(f' _ : {field_type};')
|
|
|
+ else:
|
|
|
+ l(f' {field_name} : {field_type};')
|
|
|
+ l('}')
|
|
|
+ l('')
|
|
|
+
|
|
|
+def gen_enum(decl, prefix):
|
|
|
+ enum_name = check_override(decl['name'])
|
|
|
+ l(f'{as_struct_or_enum_type(enum_name, prefix)} :: enum u32 {{')
|
|
|
+ for item in decl['items']:
|
|
|
+ item_name = as_enum_item_name(check_override(item['name']))
|
|
|
+ if item_name != 'FORCE_U32' and item_name != 'NUM':
|
|
|
+ if 'value' in item:
|
|
|
+ l(f" {item_name} :: {item['value']};")
|
|
|
+ else:
|
|
|
+ l(f" {item_name};")
|
|
|
+ l('}')
|
|
|
+ l('')
|
|
|
+
|
|
|
+def gen_imports(dep_prefixes):
|
|
|
+ for dep_prefix in dep_prefixes:
|
|
|
+ dep_module_name = module_names[dep_prefix]
|
|
|
+ l(f'#import,dir "../{dep_module_name}"(DEBUG = USE_DLL, USE_GL = USE_DLL, USE_DLL = USE_DLL);')
|
|
|
+ l('')
|
|
|
+
|
|
|
+def gen_helpers(inp):
|
|
|
+ if inp['prefix'] == 'sdtx_':
|
|
|
+ l('sdtx_printf :: (s: string, args: ..Any) {')
|
|
|
+ l(' #import "Basic";')
|
|
|
+ l(' fstr := tprint(s, ..args);')
|
|
|
+ l(' sdtx_putr(to_c_string(fstr), xx fstr.count);')
|
|
|
+ l('}')
|
|
|
+
|
|
|
+def gen_module(inp, c_prefix, dep_prefixes):
|
|
|
+ pre_parse(inp)
|
|
|
+ l('// machine generated, do not edit')
|
|
|
+ gen_imports(dep_prefixes)
|
|
|
+ gen_helpers(inp)
|
|
|
+ prefix = inp['prefix']
|
|
|
+ gen_c_imports(inp, c_prefix, prefix)
|
|
|
+ for decl in inp['decls']:
|
|
|
+ if not decl['is_dep']:
|
|
|
+ kind = decl['kind']
|
|
|
+ if kind == 'consts':
|
|
|
+ gen_consts(decl, prefix)
|
|
|
+ elif not check_ignore(decl['name']):
|
|
|
+ if kind == 'struct':
|
|
|
+ gen_struct(decl, prefix)
|
|
|
+ elif kind == 'enum':
|
|
|
+ gen_enum(decl, prefix)
|
|
|
+
|
|
|
+def pre_parse(inp):
|
|
|
+ global struct_types
|
|
|
+ global enum_types
|
|
|
+ for decl in inp['decls']:
|
|
|
+ kind = decl['kind']
|
|
|
+ if kind == 'struct':
|
|
|
+ struct_types.append(decl['name'])
|
|
|
+ elif kind == 'enum':
|
|
|
+ enum_name = decl['name']
|
|
|
+ enum_types.append(enum_name)
|
|
|
+ enum_items[enum_name] = []
|
|
|
+ for item in decl['items']:
|
|
|
+ enum_items[enum_name].append(as_enum_item_name(item['name']))
|
|
|
+
|
|
|
+def prepare():
|
|
|
+ print('=== Generating Jai bindings:')
|
|
|
+ if not os.path.isdir(module_root):
|
|
|
+ os.makedirs(module_root)
|
|
|
+ if not os.path.isdir(c_root):
|
|
|
+ os.makedirs(c_root)
|
|
|
+
|
|
|
+def gen(c_header_path, c_prefix, dep_c_prefixes):
|
|
|
+ if not c_prefix in module_names:
|
|
|
+ print(f' >> warning: skipping generation for {c_prefix} prefix...')
|
|
|
+ return
|
|
|
+ reset_globals()
|
|
|
+ make_jai_module_directory(c_prefix)
|
|
|
+ print(f' {c_header_path} => {module_names[c_prefix]}')
|
|
|
+ shutil.copyfile(c_header_path, f'{c_root}/{os.path.basename(c_header_path)}')
|
|
|
+ csource_path = get_csource_path(c_prefix)
|
|
|
+ module_name = module_names[c_prefix]
|
|
|
+ ir = gen_ir.gen(c_header_path, csource_path, module_name, c_prefix, dep_c_prefixes)
|
|
|
+ gen_module(ir, c_prefix, dep_c_prefixes)
|
|
|
+ with open(f"{module_root}/{ir['module']}/module.jai", 'w', newline='\n') as f_outp:
|
|
|
+ f_outp.write(out_lines)
|
Colin Bellino