}
-/**
- * Translate/emit TGSI SUB instruction as:
- * ADD DST, SRC0, negate(SRC1)
- */
-static boolean
-emit_sub(struct svga_shader_emitter *emit,
- const struct tgsi_full_instruction *insn)
-{
- SVGA3dShaderDestToken dst = translate_dst_register( emit, insn, 0 );
- struct src_register src0 = translate_src_register(
- emit, &insn->Src[0] );
- struct src_register src1 = translate_src_register(
- emit, &insn->Src[1] );
-
- src1 = negate(src1);
-
- if (!submit_op2( emit, inst_token( SVGA3DOP_ADD ), dst,
- src0, src1 ))
- return FALSE;
-
- return TRUE;
-}
-
-
/**
* Translate/emit KILL_IF instruction (kill if any of X,Y,Z,W are negative).
*/
case TGSI_OPCODE_SLE:
return emit_select_op( emit, PIPE_FUNC_LEQUAL, insn );
- case TGSI_OPCODE_SUB:
- return emit_sub( emit, insn );
-
case TGSI_OPCODE_POW:
return emit_pow( emit, insn );