diff options
Diffstat (limited to 'src/mesa/main/format_fallback.py')
| -rw-r--r-- | src/mesa/main/format_fallback.py | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/mesa/main/format_fallback.py b/src/mesa/main/format_fallback.py index 4a2b85cecb3..cc388274e75 100644 --- a/src/mesa/main/format_fallback.py +++ b/src/mesa/main/format_fallback.py @@ -85,6 +85,20 @@ def get_rgbx_to_rgba_map(formats): yield rgbx_name, rgba_name +def get_intensity_to_red_map(formats): + names = set(fmt.name for fmt in formats) + + for fmt in formats: + if str(fmt.swizzle) != 'xxxx': + continue + + i_name = fmt.name + r_name = i_name.replace("_I_", "_R_") + + assert r_name in names + + yield i_name, r_name + TEMPLATE = Template(COPYRIGHT + """ #include "formats.h" #include "util/macros.h" @@ -129,6 +143,23 @@ _mesa_get_linear_format_srgb(mesa_format format) } /** + * For an intensity format, return the corresponding red format. For other + * formats, return the format as-is. + */ +mesa_format +_mesa_get_intensity_format_red(mesa_format format) +{ + switch (format) { +%for i, r in intensity_to_red_map: + case ${i}: + return ${r}; +%endfor + default: + return format; + } +} + +/** * 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. @@ -164,6 +195,7 @@ def main(): template_env = { 'unorm_to_srgb_map': list(get_unorm_to_srgb_map(formats)), 'rgbx_to_rgba_map': list(get_rgbx_to_rgba_map(formats)), + 'intensity_to_red_map': list(get_intensity_to_red_map(formats)), } with open(pargs.out, 'w') as f: |