diff options
| author | Eric Anholt <[email protected]> | 2010-12-15 15:15:02 -0800 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2010-12-16 09:01:14 -0800 |
| commit | c52adfc2e1d130effea940e75690897eb5d3ceaa (patch) | |
| tree | 61793fa0a31fdd43733f8ac9ced21b57d7bbebe6 | |
| parent | 2bd11ea11921bcd180b354342a8786c5b7ddd6b3 (diff) | |
i965: Set the alternative floating point mode on gen6 VS and WM.
This matches how we did the math instructions pre-gen6, though it
applies to non-math as well.
Fixes vp1-LIT test 2 (degenerate case: 0 ^ 0 -> 1)
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_defines.h | 4 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_vs_state.c | 1 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_wm_state.c | 3 |
3 files changed, 8 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h index 7f3e4986808..b48a30d6be9 100644 --- a/src/mesa/drivers/dri/i965/brw_defines.h +++ b/src/mesa/drivers/dri/i965/brw_defines.h @@ -906,6 +906,8 @@ # define GEN6_VS_VECTOR_MASK_ENABLE (1 << 30) # define GEN6_VS_SAMPLER_COUNT_SHIFT 27 # define GEN6_VS_BINDING_TABLE_ENTRY_COUNT_SHIFT 18 +# define GEN6_VS_FLOATING_POINT_MODE_IEEE_754 (0 << 16) +# define GEN6_VS_FLOATING_POINT_MODE_ALT (1 << 16) /* DW4 */ # define GEN6_VS_DISPATCH_START_GRF_SHIFT 20 # define GEN6_VS_URB_READ_LENGTH_SHIFT 11 @@ -1048,6 +1050,8 @@ # define GEN6_WM_VECTOR_MASK_ENABLE (1 << 30) # define GEN6_WM_SAMPLER_COUNT_SHIFT 27 # define GEN6_WM_BINDING_TABLE_ENTRY_COUNT_SHIFT 18 +# define GEN6_WM_FLOATING_POINT_MODE_IEEE_754 (0 << 16) +# define GEN6_WM_FLOATING_POINT_MODE_ALT (1 << 16) /* DW3: scratch space */ /* DW4 */ # define GEN6_WM_STATISTICS_ENABLE (1 << 31) diff --git a/src/mesa/drivers/dri/i965/gen6_vs_state.c b/src/mesa/drivers/dri/i965/gen6_vs_state.c index 4ef9e2e6072..ed132bdbd93 100644 --- a/src/mesa/drivers/dri/i965/gen6_vs_state.c +++ b/src/mesa/drivers/dri/i965/gen6_vs_state.c @@ -130,6 +130,7 @@ upload_vs_state(struct brw_context *brw) OUT_BATCH(CMD_3D_VS_STATE << 16 | (6 - 2)); OUT_RELOC(brw->vs.prog_bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 0); OUT_BATCH((0 << GEN6_VS_SAMPLER_COUNT_SHIFT) | + GEN6_VS_FLOATING_POINT_MODE_ALT | (brw->vs.nr_surfaces << GEN6_VS_BINDING_TABLE_ENTRY_COUNT_SHIFT)); OUT_BATCH(0); /* scratch space base offset */ OUT_BATCH((1 << GEN6_VS_DISPATCH_START_GRF_SHIFT) | diff --git a/src/mesa/drivers/dri/i965/gen6_wm_state.c b/src/mesa/drivers/dri/i965/gen6_wm_state.c index d80df4e254b..2ae0c093ebe 100644 --- a/src/mesa/drivers/dri/i965/gen6_wm_state.c +++ b/src/mesa/drivers/dri/i965/gen6_wm_state.c @@ -133,6 +133,9 @@ upload_wm_state(struct brw_context *brw) dw5 |= GEN6_WM_LINE_AA_WIDTH_1_0; dw5 |= GEN6_WM_LINE_END_CAP_AA_WIDTH_0_5; + /* OpenGL non-ieee floating point mode */ + dw2 |= GEN6_WM_FLOATING_POINT_MODE_ALT; + /* BRW_NEW_NR_WM_SURFACES */ dw2 |= brw->wm.nr_surfaces << GEN6_WM_BINDING_TABLE_ENTRY_COUNT_SHIFT; |