r5xx: Fixed LRP.

Works perfectly. It's a complex one, though, so it might fail in weird ways...

diff --git a/src/mesa/drivers/dri/r300/r500_fragprog.c b/src/mesa/drivers/dri/r300/r500_fragprog.c
index f0c7fed..7bde21a 100644 (file)
--- a/src/mesa/drivers/dri/r300/r500_fragprog.c
+++ b/src/mesa/drivers/dri/r300/r500_fragprog.c
@@ -606,12 +606,14 @@ static GLboolean parse_program(struct r500_fragment_program *fp)
                                        | R500_ALU_RGBA_ADDRD(dest);
                                break;
                        case OPCODE_LRP:
-                               /* src0 * src1 + INV(src0) * src2 */
+                               /* src0 * src1 + INV(src0) * src2
+                                * 1) MUL src0, src1, temp
+                                * 2) PRE 1-src0; MAD srcp, src2, temp */
                                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);
+                                       | R500_INST_NOP | (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])
@@ -630,10 +632,12 @@ static GLboolean parse_program(struct r500_fragment_program *fp)
                                counter++;
                                emit_alu(fp, counter, fpi);
                                fp->inst[counter].inst1 = R500_RGB_ADDR0(src[0])
-                                       | R500_RGB_ADDR1(get_temp(fp, 0))
+                                       | R500_RGB_ADDR1(src[2])
+                                       | R500_RGB_ADDR2(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_ADDR1(src[2])
+                                       | R500_ALPHA_ADDR2(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]))
@@ -641,12 +645,12 @@ static GLboolean parse_program(struct r500_fragment_program *fp)
                                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]));
+                                       | R500_ALPHA_SEL_B_SRC1 | R500_ALPHA_SWIZ_B_A;
                                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]));
+                                       | R500_ALU_RGBA_SEL_C_SRC2 | MAKE_SWIZ_RGBA_C(make_rgb_swizzle(fpi->SrcReg[2]))
+                                       | R500_ALU_RGBA_ALPHA_SEL_C_SRC2
+                                       | MAKE_SWIZ_ALPHA_C(make_alpha_swizzle(fpi->SrcReg[2]));
                                break;
                        case OPCODE_MAD:
                                src[0] = make_src(fp, fpi->SrcReg[0]);