main/enums.c \
main/api_exec.c \
main/dispatch.h \
+ main/format_fallback.c \
main/format_pack.c \
main/format_unpack.c \
main/format_info.h \
$(LOCAL_PATH)/main/get_hash_params.py $(GET_HASH_GEN)
$(call es-gen)
+FORMAT_FALLBACK := $(LOCAL_PATH)/main/format_fallback.py
+format_fallback_deps := \
+ $(LOCAL_PATH)/main/formats.csv \
+ $(LOCAL_PATH)/main/format_parser.py \
+ $(FORMAT_FALLBACK)
+
+$(intermediates)/main/format_fallback.c: PRIVATE_SCRIPT := $(MESA_PYTHON2) $(FORMAT_FALLBACK)
+$(intermediates)/main/format_fallback.c: PRIVATE_XML :=
+$(intermediates)/main/format_fallback.c: $(format_fallback_deps)
+ $(call es-gen, $<)
+
FORMAT_INFO := $(LOCAL_PATH)/main/format_info.py
format_info_deps := \
$(LOCAL_PATH)/main/formats.csv \
--- /dev/null
+COPYRIGHT = """\
+/*
+ * Copyright 2017 Google
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+"""
+
+# stdlib
+import argparse
+from sys import stdout
+from mako.template import Template
+
+# local
+import format_parser
+
+def parse_args():
+ p = argparse.ArgumentParser()
+ p.add_argument("csv")
+ p.add_argument("out")
+ return p.parse_args()
+
+def get_rgbx_to_rgba_map(formats):
+ names = {fmt.name for fmt in formats}
+
+ for fmt in formats:
+ if not fmt.has_channel('r') or not fmt.has_channel('x'):
+ continue
+
+ # The condition above will still let MESA_FORMAT_R9G9B9E5_FLOAT
+ # through. We need to ensure it actually has an X in the name.
+ if not 'X' in fmt.name:
+ continue
+
+ rgbx_name = fmt.name
+ rgba_name = rgbx_name.replace("X", "A")
+ if rgba_name not in names:
+ continue;
+
+ yield rgbx_name, rgba_name
+
+TEMPLATE = Template(COPYRIGHT + """
+#include "formats.h"
+
+/**
+ * If the format has an alpha channel, and there exists a non-alpha
+ * variant of the format with an identical bit layout, then return
+ * the non-alpha format. Otherwise return the original format.
+ *
+ * Examples:
+ * Fallback exists:
+ * MESA_FORMAT_R8G8B8X8_UNORM -> MESA_FORMAT_R8G8B8A8_UNORM
+ * MESA_FORMAT_RGBX_UNORM16 -> MESA_FORMAT_RGBA_UNORM16
+ *
+ * No fallback:
+ * MESA_FORMAT_R8G8B8A8_UNORM -> MESA_FORMAT_R8G8B8A8_UNORM
+ * MESA_FORMAT_Z_FLOAT32 -> MESA_FORMAT_Z_FLOAT32
+ */
+mesa_format
+_mesa_format_fallback_rgbx_to_rgba(mesa_format format)
+{
+ switch (format) {
+%for rgbx, rgba in rgbx_to_rgba_map:
+ case ${rgbx}:
+ return ${rgba};
+%endfor
+ default:
+ return format;
+ }
+}
+""");
+
+def main():
+ pargs = parse_args()
+
+ formats = list(format_parser.parse(pargs.csv))
+
+ template_env = {
+ 'rgbx_to_rgba_map': list(get_rgbx_to_rgba_map(formats)),
+ }
+
+ with open(pargs.out, 'w') as f:
+ f.write(TEMPLATE.render(**template_env))
+
+if __name__ == "__main__":
+ main()
projects / mesa.git / commitdiff