diff options
Diffstat (limited to 'src/intel')
| -rw-r--r-- | src/intel/compiler/brw_fs_generator.cpp | 46 |
1 files changed, 38 insertions, 8 deletions
diff --git a/src/intel/compiler/brw_fs_generator.cpp b/src/intel/compiler/brw_fs_generator.cpp index e6fb7c92d40..0dc0a695e4e 100644 --- a/src/intel/compiler/brw_fs_generator.cpp +++ b/src/intel/compiler/brw_fs_generator.cpp @@ -1187,15 +1187,45 @@ fs_generator::generate_ddy(const fs_inst *inst, { if (inst->opcode == FS_OPCODE_DDY_FINE) { /* produce accurate derivatives */ - struct brw_reg src0 = stride(src, 4, 4, 1); - struct brw_reg src1 = stride(src, 4, 4, 1); - src0.swizzle = BRW_SWIZZLE_XYXY; - src1.swizzle = BRW_SWIZZLE_ZWZW; + if (devinfo->gen >= 11) { + src = stride(src, 0, 2, 1); + struct brw_reg src_0 = byte_offset(src, 0 * sizeof(float)); + struct brw_reg src_2 = byte_offset(src, 2 * sizeof(float)); + struct brw_reg src_4 = byte_offset(src, 4 * sizeof(float)); + struct brw_reg src_6 = byte_offset(src, 6 * sizeof(float)); + struct brw_reg src_8 = byte_offset(src, 8 * sizeof(float)); + struct brw_reg src_10 = byte_offset(src, 10 * sizeof(float)); + struct brw_reg src_12 = byte_offset(src, 12 * sizeof(float)); + struct brw_reg src_14 = byte_offset(src, 14 * sizeof(float)); + + struct brw_reg dst_0 = byte_offset(dst, 0 * sizeof(float)); + struct brw_reg dst_4 = byte_offset(dst, 4 * sizeof(float)); + struct brw_reg dst_8 = byte_offset(dst, 8 * sizeof(float)); + struct brw_reg dst_12 = byte_offset(dst, 12 * sizeof(float)); - brw_push_insn_state(p); - brw_set_default_access_mode(p, BRW_ALIGN_16); - brw_ADD(p, dst, negate(src0), src1); - brw_pop_insn_state(p); + brw_push_insn_state(p); + brw_set_default_exec_size(p, BRW_EXECUTE_4); + + brw_ADD(p, dst_0, negate(src_0), src_2); + brw_ADD(p, dst_4, negate(src_4), src_6); + + if (inst->exec_size == 16) { + brw_ADD(p, dst_8, negate(src_8), src_10); + brw_ADD(p, dst_12, negate(src_12), src_14); + } + + brw_pop_insn_state(p); + } else { + struct brw_reg src0 = stride(src, 4, 4, 1); + struct brw_reg src1 = stride(src, 4, 4, 1); + src0.swizzle = BRW_SWIZZLE_XYXY; + src1.swizzle = BRW_SWIZZLE_ZWZW; + + brw_push_insn_state(p); + brw_set_default_access_mode(p, BRW_ALIGN_16); + brw_ADD(p, dst, negate(src0), src1); + brw_pop_insn_state(p); + } } else { /* replicate the derivative at the top-left pixel to other pixels */ struct brw_reg src0 = stride(src, 4, 4, 0); |