diff options
Diffstat (limited to 'src/gallium/drivers/r600/evergreen_state.c')
| -rw-r--r-- | src/gallium/drivers/r600/evergreen_state.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c index d60c153b482..9757811e8b6 100644 --- a/src/gallium/drivers/r600/evergreen_state.c +++ b/src/gallium/drivers/r600/evergreen_state.c @@ -710,14 +710,20 @@ static void evergreen_cb(struct r600_pipe_context *rctx, struct r600_pipe_state S_028C70_ENDIAN(endian); - /* we can only set the export size if any thing is snorm/unorm component is > 11 bits, - if we aren't a float, sint or uint */ + /* EXPORT_NORM is an optimzation that can be enabled for better + * performance in certain cases. + * EXPORT_NORM can be enabled if: + * - 11-bit or smaller UNORM/SNORM/SRGB + * - 16-bit or smaller FLOAT + */ /* FIXME: This should probably be the same for all CBs if we want * useful alpha tests. */ if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS && - desc->channel[i].size < 12 && desc->channel[i].type != UTIL_FORMAT_TYPE_FLOAT && - ntype != V_028C70_NUMBER_UINT && ntype != V_028C70_NUMBER_SINT) { - color_info |= S_028C70_SOURCE_FORMAT(V_028C70_EXPORT_4C_16BPC); + ((desc->channel[i].size < 12 && + desc->channel[i].type != UTIL_FORMAT_TYPE_FLOAT && + ntype != V_028C70_NUMBER_UINT && ntype != V_028C70_NUMBER_SINT) || + (desc->channel[i].size < 17 && + desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT))) { rctx->export_16bpc = true; } else { rctx->export_16bpc = false; |