From e4707604ab46252d2e010906124775d3300f0be1 Mon Sep 17 00:00:00 2001 From: Marek Olšák Date: Sat, 12 Mar 2011 06:07:24 +0100 Subject: r300/compiler: fix the saturate modifier when applied to TEX instructions This bug can only be triggered if the source texture is either signed or float. --- src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'src/mesa') diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c b/src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c index 0403b8bb1f..1cf77d9cf7 100644 --- a/src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c +++ b/src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c @@ -425,17 +425,21 @@ int radeonTransformTEX( scale_texcoords(compiler, inst, RC_STATE_R300_TEXSCALE_FACTOR); } - /* Cannot write texture to output registers (all chips) or with masks (non-r500) */ + /* Cannot write texture to output registers or with saturate (all chips), + * or with masks (non-r500). */ if (inst->U.I.Opcode != RC_OPCODE_KIL && (inst->U.I.DstReg.File != RC_FILE_TEMPORARY || + inst->U.I.SaturateMode || (!c->is_r500 && inst->U.I.DstReg.WriteMask != RC_MASK_XYZW))) { struct rc_instruction * inst_mov = rc_insert_new_instruction(c, inst); inst_mov->U.I.Opcode = RC_OPCODE_MOV; + inst_mov->U.I.SaturateMode = inst->U.I.SaturateMode; inst_mov->U.I.DstReg = inst->U.I.DstReg; inst_mov->U.I.SrcReg[0].File = RC_FILE_TEMPORARY; inst_mov->U.I.SrcReg[0].Index = rc_find_free_temporary(c); + inst->U.I.SaturateMode = 0; inst->U.I.DstReg.File = RC_FILE_TEMPORARY; inst->U.I.DstReg.Index = inst_mov->U.I.SrcReg[0].Index; inst->U.I.DstReg.WriteMask = RC_MASK_XYZW; -- cgit v1.2.3