diff options
| -rw-r--r-- | src/mesa/drivers/dri/r300/radeon_program_alu.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/radeon_program_alu.c b/src/mesa/drivers/dri/r300/radeon_program_alu.c index 8daa94c7268..f06ebfcdbf9 100644 --- a/src/mesa/drivers/dri/r300/radeon_program_alu.c +++ b/src/mesa/drivers/dri/r300/radeon_program_alu.c @@ -153,6 +153,7 @@ static struct prog_src_register absolute(struct prog_src_register reg) { struct prog_src_register newreg = reg; newreg.Abs = 1; + newreg.NegateBase = 0; newreg.NegateAbs = 0; return newreg; } @@ -343,6 +344,12 @@ static void transform_POW(struct radeon_transform_context* t, emit1(t->Program, OPCODE_EX2, inst->DstReg, tempsrc); } +static void transform_RSQ(struct radeon_transform_context* t, + struct prog_instruction* inst) +{ + emit1(t->Program, OPCODE_RSQ, inst->DstReg, absolute(inst->SrcReg[0])); +} + static void transform_SGE(struct radeon_transform_context* t, struct prog_instruction* inst) { @@ -397,6 +404,9 @@ static void transform_XPD(struct radeon_transform_context* t, * using: * MOV, ADD, MUL, MAD, FRC, DP3, LG2, EX2, CMP * + * Transforms RSQ to Radeon's native RSQ by explicitly setting + * absolute value. + * * @note should be applicable to R300 and R500 fragment programs. */ GLboolean radeonTransformALU(struct radeon_transform_context* t, @@ -411,6 +421,7 @@ GLboolean radeonTransformALU(struct radeon_transform_context* t, case OPCODE_LIT: transform_LIT(t, inst); return GL_TRUE; case OPCODE_LRP: transform_LRP(t, inst); return GL_TRUE; case OPCODE_POW: transform_POW(t, inst); return GL_TRUE; + case OPCODE_RSQ: transform_RSQ(t, inst); return GL_TRUE; case OPCODE_SGE: transform_SGE(t, inst); return GL_TRUE; case OPCODE_SLT: transform_SLT(t, inst); return GL_TRUE; case OPCODE_SUB: transform_SUB(t, inst); return GL_TRUE; |