diff options
| -rw-r--r-- | shared-core/r300_reg.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/shared-core/r300_reg.h b/shared-core/r300_reg.h index 8ff362b9..0a31f0b9 100644 --- a/shared-core/r300_reg.h +++ b/shared-core/r300_reg.h @@ -673,6 +673,11 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. /* Special handling for color: When the fragment program uses color, * the ROUTE_0_COLOR bit is set and ROUTE_0_COLOR_DEST contains the * color register index. + * + * Apperently you may set the R300_RS_ROUTE_0_COLOR bit, but not provide any + * R300_RS_ROUTE_0_COLOR_DEST value; this setup is used for clearing the state. + * See r300_ioctl.c:r300EmitClearState. I'm not sure if this setup is strictly + * correct or not. - Oliver. */ # define R300_RS_ROUTE_0_COLOR (1 << 14) # define R300_RS_ROUTE_0_COLOR_DEST_SHIFT 17 |