diff options
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index 96c1f355f34..67a4da751f6 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -441,9 +441,6 @@ public: void emit_arl(ir_instruction *ir, st_dst_reg dst, st_src_reg src0); - void emit_scs(ir_instruction *ir, unsigned op, - st_dst_reg dst, const st_src_reg &src); - bool try_emit_mad(ir_expression *ir, int mul_operand); bool try_emit_mad_for_and_not(ir_expression *ir, @@ -966,101 +963,6 @@ glsl_to_tgsi_visitor::emit_arl(ir_instruction *ir, emit(NULL, op, dst, src0); } -/** - * Emit an TGSI_OPCODE_SCS instruction - * - * The \c SCS opcode functions a bit differently than the other TGSI opcodes. - * Instead of splatting its result across all four components of the - * destination, it writes one value to the \c x component and another value to - * the \c y component. - * - * \param ir IR instruction being processed - * \param op Either \c TGSI_OPCODE_SIN or \c TGSI_OPCODE_COS depending - * on which value is desired. - * \param dst Destination register - * \param src Source register - */ -void -glsl_to_tgsi_visitor::emit_scs(ir_instruction *ir, unsigned op, - st_dst_reg dst, - const st_src_reg &src) -{ - /* Vertex programs cannot use the SCS opcode. - */ - if (this->prog->Target == GL_VERTEX_PROGRAM_ARB) { - emit_scalar(ir, op, dst, src); - return; - } - - const unsigned component = (op == TGSI_OPCODE_SIN) ? 0 : 1; - const unsigned scs_mask = (1U << component); - int done_mask = ~dst.writemask; - st_src_reg tmp; - - assert(op == TGSI_OPCODE_SIN || op == TGSI_OPCODE_COS); - - /* If there are compnents in the destination that differ from the component - * that will be written by the SCS instrution, we'll need a temporary. - */ - if (scs_mask != unsigned(dst.writemask)) { - tmp = get_temp(glsl_type::vec4_type); - } - - for (unsigned i = 0; i < 4; i++) { - unsigned this_mask = (1U << i); - st_src_reg src0 = src; - - if ((done_mask & this_mask) != 0) - continue; - - /* The source swizzle specified which component of the source generates - * sine / cosine for the current component in the destination. The SCS - * instruction requires that this value be swizzle to the X component. - * Replace the current swizzle with a swizzle that puts the source in - * the X component. - */ - unsigned src0_swiz = GET_SWZ(src.swizzle, i); - - src0.swizzle = MAKE_SWIZZLE4(src0_swiz, src0_swiz, - src0_swiz, src0_swiz); - for (unsigned j = i + 1; j < 4; j++) { - /* If there is another enabled component in the destination that is - * derived from the same inputs, generate its value on this pass as - * well. - */ - if (!(done_mask & (1 << j)) && - GET_SWZ(src0.swizzle, j) == src0_swiz) { - this_mask |= (1 << j); - } - } - - if (this_mask != scs_mask) { - glsl_to_tgsi_instruction *inst; - st_dst_reg tmp_dst = st_dst_reg(tmp); - - /* Emit the SCS instruction. - */ - inst = emit(ir, TGSI_OPCODE_SCS, tmp_dst, src0); - inst->dst[0].writemask = scs_mask; - - /* Move the result of the SCS instruction to the desired location in - * the destination. - */ - tmp.swizzle = MAKE_SWIZZLE4(component, component, - component, component); - inst = emit(ir, TGSI_OPCODE_SCS, dst, tmp); - inst->dst[0].writemask = this_mask; - } else { - /* Emit the SCS instruction to write directly to the destination. - */ - glsl_to_tgsi_instruction *inst = emit(ir, TGSI_OPCODE_SCS, dst, src0); - inst->dst[0].writemask = scs_mask; - } - - done_mask |= this_mask; - } -} - int glsl_to_tgsi_visitor::add_constant(gl_register_file file, gl_constant_value values[8], int size, int datatype, |