diff options
| author | Chris Forbes <[email protected]> | 2013-10-10 19:57:29 +1300 |
|---|---|---|
| committer | Chris Forbes <[email protected]> | 2013-10-26 22:16:32 +1300 |
| commit | 3c98d77460df0e7dde7fb22beaa4c4e6dc8a3602 (patch) | |
| tree | 6a8e3edd3658b82b81d7c627bb46dedc7de99bb6 | |
| parent | 32f898a71cd0a83677944f0444145c4a04c966a1 (diff) | |
i965/fs: Add support for shadow comparitors with gather4
Note that gather4_po_c's parameters are too long for SIMD16. It might be
worth emitting 2xSIMD8 messages in this case at some point.
Signed-off-by: Chris Forbes <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_generator.cpp | 15 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_visitor.cpp | 3 |
2 files changed, 15 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp index 6b9f70b5693..853120dc9bf 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_generator.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_generator.cpp @@ -435,12 +435,21 @@ fs_generator::generate_tex(fs_inst *inst, struct brw_reg dst, struct brw_reg src msg_type = GEN5_SAMPLER_MESSAGE_LOD; break; case SHADER_OPCODE_TG4: - assert(brw->gen >= 6); - msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4; + if (inst->shadow_compare) { + assert(brw->gen >= 7); + msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_C; + } else { + assert(brw->gen >= 6); + msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4; + } break; case SHADER_OPCODE_TG4_OFFSET: assert(brw->gen >= 7); - msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_PO; + if (inst->shadow_compare) { + msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_PO_C; + } else { + msg_type = GEN7_SAMPLER_MESSAGE_SAMPLE_GATHER4_PO; + } break; default: assert(!"not reached"); diff --git a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp index 314fe2ab519..1d2da8cf1b6 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_visitor.cpp @@ -1359,6 +1359,9 @@ fs_visitor::emit_texture_gen7(ir_texture *ir, fs_reg dst, fs_reg coordinate, break; case ir_tg4: if (has_nonconstant_offset) { + if (ir->shadow_comparitor && dispatch_width == 16) + fail("Gen7 does not support gather4_po_c in SIMD16 mode."); + /* More crazy intermixing */ ir->offset->accept(this); fs_reg offset_value = this->result; |