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author | Oliver McFadden <z3ro.geek@gmail.com> | 2007-06-21 14:35:11 +0000 |
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committer | Oliver McFadden <z3ro.geek@gmail.com> | 2007-06-21 14:35:11 +0000 |
commit | 40f6a696cb22ffa064f78198a7a241015d365967 (patch) | |
tree | 5db534ac60e86d19715d18fb665b7bd91f50a999 | |
parent | 213732af4381819113756d6d920794cf0dc30dd6 (diff) |
r300: Synchronized the register defines file; documentation changes.
-rw-r--r-- | shared-core/r300_reg.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/shared-core/r300_reg.h b/shared-core/r300_reg.h index 3ce09c16..e59919be 100644 --- a/shared-core/r300_reg.h +++ b/shared-core/r300_reg.h @@ -336,13 +336,15 @@ USE OR OTHER DEALINGS IN THE SOFTWARE. * The meaning of the two UNKNOWN fields is obviously not known. However, * experiments so far have shown that both *must* point to an instruction * inside the vertex program, otherwise the GPU locks up. + * * fglrx usually sets CNTL_3_UNKNOWN to the end of the program and - * CNTL_1_UNKNOWN points to instruction where last write to position takes - * place. + * R300_PVS_CNTL_1_POS_END_SHIFT points to instruction where last write to + * position takes place. + * * Most likely this is used to ignore rest of the program in cases * where group of verts arent visible. For some reason this "section" * is sometimes accepted other instruction that have no relationship with - *position calculations. + * position calculations. */ #define R300_VAP_PVS_CNTL_1 0x22D0 # define R300_PVS_CNTL_1_PROGRAM_START_SHIFT 0 |