diff options
| author | Kenneth Graunke <[email protected]> | 2011-06-10 14:48:46 -0700 |
|---|---|---|
| committer | Kenneth Graunke <[email protected]> | 2011-06-18 17:53:57 -0700 |
| commit | 6430df37736d71dd2bd6f1fe447d39f0b68cb567 (patch) | |
| tree | bd7537dcc15de887aa2413dddc2f9df5cf358d59 /src/mesa/drivers/dri/i965/brw_fs_emit.cpp | |
| parent | 01fa9addf447120e994415ad8fc8246ac234ec27 (diff) | |
i965/fs: Add support for TXD with shadow comparisons.
Our hardware doesn't have a sample_d_c message, so we have to do a
regular sample_d and emit instructions to manually perform the
comparison.
This requires a state dependent recompile whenever the sampler's compare
mode or function change. This adds the per-sampler comparison functions
to brw_wm_prog_key, but only sets them when the sampler's compare mode
is GL_COMPARE_R_TO_TEXTURE (i.e. only for shadow sampling).
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_fs_emit.cpp')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_emit.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_emit.cpp b/src/mesa/drivers/dri/i965/brw_fs_emit.cpp index 1c522cbad02..1d89b8f1d11 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_emit.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_emit.cpp @@ -273,7 +273,7 @@ fs_visitor::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src) } break; case FS_OPCODE_TXD: - assert(!inst->shadow_compare); + /* There is no sample_d_c message; comparisons are done manually */ msg_type = GEN5_SAMPLER_MESSAGE_SAMPLE_DERIVS; break; } @@ -312,7 +312,7 @@ fs_visitor::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src) } break; case FS_OPCODE_TXD: - assert(!inst->shadow_compare); // not supported yet + /* There is no sample_d_c message; comparisons are done manually */ assert(inst->mlen == 7 || inst->mlen == 10); msg_type = BRW_SAMPLER_MESSAGE_SIMD8_SAMPLE_GRADIENTS; break; |