r5xx: Initial (broken) OPCODE_LRP.

Will compile, run, and not eat your kids, but the math is wrong.

diff --git a/src/mesa/drivers/dri/r300/r500_fragprog.c b/src/mesa/drivers/dri/r300/r500_fragprog.c
index 70940e82153ac7ede62f6fc7a88769cfb56ebfc0..e67ff98a9abc2aa9af9f9d3f7f13a22c2742a110 100644 (file)
--- a/src/mesa/drivers/dri/r300/r500_fragprog.c
+++ b/src/mesa/drivers/dri/r300/r500_fragprog.c
@@ -605,6 +605,49 @@ static GLboolean parse_program(struct r500_fragment_program *fp)
                                fp->inst[counter].inst5 = R500_ALU_RGBA_OP_SOP
                                        | R500_ALU_RGBA_ADDRD(dest);
                                break;
+                       case OPCODE_LRP:
+                               /* src0 * src1 + INV(src0) * src2 */
+                               src[0] = make_src(fp, fpi->SrcReg[0]);
+                               src[1] = make_src(fp, fpi->SrcReg[1]);
+                               src[2] = make_src(fp, fpi->SrcReg[2]);
+                               fp->inst[counter].inst0 = R500_INST_TYPE_ALU | R500_INST_TEX_SEM_WAIT
+                                       | (R500_WRITEMASK_ARGB << 11);
+                               fp->inst[counter].inst1 = R500_RGB_ADDR0(src[0])
+                                       | R500_RGB_ADDR1(src[1]);
+                               fp->inst[counter].inst2 = R500_ALPHA_ADDR0(src[0])
+                                       | R500_ALPHA_ADDR1(src[1]);
+                               fp->inst[counter].inst3 = R500_ALU_RGB_SEL_A_SRC0
+                                       | MAKE_SWIZ_RGB_A(make_rgb_swizzle(fpi->SrcReg[0]))
+                                       | R500_ALU_RGB_SEL_B_SRC1 | MAKE_SWIZ_RGB_B(make_rgb_swizzle(fpi->SrcReg[1]));
+                               fp->inst[counter].inst4 = R500_ALPHA_OP_MAD
+                                       | R500_ALPHA_ADDRD(get_temp(fp, 0))
+                                       | R500_ALPHA_SEL_A_SRC0 | MAKE_SWIZ_ALPHA_A(make_alpha_swizzle(fpi->SrcReg[0]))
+                                       | R500_ALPHA_SEL_B_SRC1 | MAKE_SWIZ_ALPHA_B(make_alpha_swizzle(fpi->SrcReg[1]));
+                               fp->inst[counter].inst5 = R500_ALU_RGBA_OP_MAD
+                                       | R500_ALU_RGBA_ADDRD(get_temp(fp, 0))
+                                       | MAKE_SWIZ_RGBA_C(R500_SWIZ_RGB_ZERO)
+                                       | MAKE_SWIZ_ALPHA_C(R500_SWIZZLE_ZERO);
+                               counter++;
+                               emit_alu(fp, counter, fpi);
+                               fp->inst[counter].inst1 = R500_RGB_ADDR0(src[0])
+                                       | R500_RGB_ADDR1(get_temp(fp, 0))
+                                       | R500_RGB_SRCP_OP_1_MINUS_RGB0;
+                               fp->inst[counter].inst2 = R500_ALPHA_ADDR0(src[0])
+                                       | R500_ALPHA_ADDR1(get_temp(fp, 0))
+                                       | R500_ALPHA_SRCP_OP_1_MINUS_A0;
+                               fp->inst[counter].inst3 = R500_ALU_RGB_SEL_A_SRCP
+                                       | MAKE_SWIZ_RGB_A(make_rgb_swizzle(fpi->SrcReg[0]))
+                                       | R500_ALU_RGB_SEL_B_SRC1 | MAKE_SWIZ_RGB_B(R500_SWIZ_RGB_RGB);
+                               fp->inst[counter].inst4 = R500_ALPHA_OP_MAD
+                                       | R500_ALPHA_ADDRD(dest)
+                                       | R500_ALPHA_SEL_A_SRCP | MAKE_SWIZ_ALPHA_A(make_alpha_swizzle(fpi->SrcReg[0]))
+                                       | R500_ALPHA_SEL_B_SRC1 | MAKE_SWIZ_ALPHA_B(make_alpha_swizzle(fpi->SrcReg[1]));
+                               fp->inst[counter].inst5 = R500_ALU_RGBA_OP_MAD
+                                       | R500_ALU_RGBA_ADDRD(dest)
+                                       | R500_ALU_RGBA_SEL_C_SRC0 | MAKE_SWIZ_RGBA_C(make_rgb_swizzle(fpi->SrcReg[0]))
+                                       | R500_ALU_RGBA_ALPHA_SEL_C_SRC0
+                                       | MAKE_SWIZ_ALPHA_C(make_alpha_swizzle(fpi->SrcReg[0]));
+                               break;
                        case OPCODE_MAD:
                                src[0] = make_src(fp, fpi->SrcReg[0]);
                                src[1] = make_src(fp, fpi->SrcReg[1]);