diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/auxiliary/tgsi/exec/tgsi_exec.c | 34 |
1 files changed, 32 insertions, 2 deletions
diff --git a/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c b/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c index f2ed9e0353..ad871d2bdf 100644 --- a/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c +++ b/src/gallium/auxiliary/tgsi/exec/tgsi_exec.c @@ -1516,11 +1516,41 @@ exec_instruction( break; case TGSI_OPCODE_EXP: - assert (0); + printf("TGSI: EXP opcode not implemented\n"); + /* from ARB_v_p: + tmp = ScalarLoad(op0); + result.x = 2^floor(tmp); + result.y = tmp - floor(tmp); + result.z = RoughApprox2ToX(tmp); + result.w = 1.0; + */ +#if 0 + /* something like this: */ + FETCH( &r[0], 0, CHAN_X ); + micro_exp2( &r[0], &r[0] ); + FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) { + STORE( &r[0], 0, chan_index ); + } +#endif break; case TGSI_OPCODE_LOG: - assert (0); + printf("TGSI: LOG opcode not implemented\n"); + /* from ARB_v_p: + tmp = fabs(ScalarLoad(op0)); + result.x = floor(log2(tmp)); + result.y = tmp / 2^(floor(log2(tmp))); + result.z = RoughApproxLog2(tmp); + result.w = 1.0; + */ +#if 0 + /* something like this: */ + FETCH( &r[0], 0, CHAN_X ); + micro_lg2( &r[0], &r[0] ); + FOR_EACH_ENABLED_CHANNEL( *inst, chan_index ) { + STORE( &r[0], 0, chan_index ); + } +#endif break; case TGSI_OPCODE_MUL: |