p.add_argument("out")
return p.parse_args()
+def get_unorm_to_srgb_map(formats):
+ names = set(fmt.name for fmt in formats)
+
+ for fmt in formats:
+ if fmt.colorspace != 'srgb':
+ continue;
+
+ replacements = [
+ ('SRGB', 'RGB'),
+ ('SRGB', 'UNORM'),
+ ('SRGB8_ALPHA8', 'RGBA'),
+ ('SRGB8_ALPHA8', 'RGBA8'),
+ ('SRGB_ALPHA_UNORM', 'RGBA_UNORM'),
+ ]
+ found_unorm_name = False
+ for rep in replacements:
+ if fmt.name.find(rep[0]) == -1:
+ continue
+
+ unorm_name = fmt.name.replace(rep[0], rep[1])
+ if unorm_name in names:
+ yield unorm_name, fmt.name
+ found_unorm_name = True
+ break
+
+ # Every sRGB format MUST have a UNORM equivalent
+ assert found_unorm_name
+
def get_rgbx_to_rgba_map(formats):
names = set(fmt.name for fmt in formats)
TEMPLATE = Template(COPYRIGHT + """
#include "formats.h"
+/**
+ * For an sRGB format, return the corresponding linear color space format.
+ * For non-sRGB formats, return the format as-is.
+ */
+mesa_format
+_mesa_get_srgb_format_linear(mesa_format format)
+{
+ switch (format) {
+%for unorm, srgb in unorm_to_srgb_map:
+ case ${srgb}:
+ return ${unorm};
+%endfor
+ default:
+ return format;
+ }
+}
+
+/**
+ * For a linear format, return the corresponding sRGB color space format.
+ * For an sRGB format, return the format as-is.
+ * Assert-fails if the format is not sRGB and does not have an sRGB equivalent.
+ */
+mesa_format
+_mesa_get_linear_format_srgb(mesa_format format)
+{
+ switch (format) {
+%for unorm, srgb in unorm_to_srgb_map:
+ case ${unorm}:
+ return ${srgb};
+%endfor
+%for unorm, srgb in unorm_to_srgb_map:
+ case ${srgb}:
+%endfor
+ return format;
+ default:
+ unreachable("Given format does not have an sRGB equivalent");
+ }
+}
+
/**
* If the format has an alpha channel, and there exists a non-alpha
* variant of the format with an identical bit layout, then return
formats = list(format_parser.parse(pargs.csv))
template_env = {
+ 'unorm_to_srgb_map': list(get_unorm_to_srgb_map(formats)),
'rgbx_to_rgba_map': list(get_rgbx_to_rgba_map(formats)),
}