diff options
| author | Xiang, Haihao <[email protected]> | 2007-09-26 16:42:50 +0800 |
|---|---|---|
| committer | Brian <[email protected]> | 2007-09-26 07:58:57 -0600 |
| commit | f40ca444f592e86879ed22781f79dbcc51431ecb (patch) | |
| tree | d44afed39468283b1fe27f9e9b72c787e562d4e4 /src/mesa | |
| parent | 638a5e0382371f0c15be9b749e7f55a0339195ca (diff) | |
i965: The cube map texture coordinates must be devided by the
component with the largest absolute value before they are
delivered. fix bug #12421
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_wm_fp.c | 52 |
1 files changed, 51 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_wm_fp.c b/src/mesa/drivers/dri/i965/brw_wm_fp.c index ff97d87dc45..dc57fd263c2 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_fp.c +++ b/src/mesa/drivers/dri/i965/brw_wm_fp.c @@ -525,7 +525,57 @@ static void precalc_tex( struct brw_wm_compile *c, struct prog_src_register coord; struct prog_dst_register tmpcoord; - if (inst->TexSrcTarget == TEXTURE_RECT_INDEX) { + if (inst->TexSrcTarget == TEXTURE_CUBE_INDEX) { + struct prog_instruction *out; + struct prog_dst_register tmp0 = get_temp(c); + struct prog_src_register tmp0src = src_reg_from_dst(tmp0); + struct prog_dst_register tmp1 = get_temp(c); + struct prog_src_register tmp1src = src_reg_from_dst(tmp1); + struct prog_src_register src0 = inst->SrcReg[0]; + + tmpcoord = get_temp(c); + coord = src_reg_from_dst(tmpcoord); + + out = emit_op(c, OPCODE_MOV, + tmpcoord, + 0, 0, 0, + src0, + src_undef(), + src_undef()); + out->SrcReg[0].NegateBase = 0; + out->SrcReg[0].Abs = 1; + + emit_op(c, OPCODE_MAX, + tmp0, + 0, 0, 0, + src_swizzle1(coord, X), + src_swizzle1(coord, Y), + src_undef()); + + emit_op(c, OPCODE_MAX, + tmp1, + 0, 0, 0, + tmp0src, + src_swizzle1(coord, Z), + src_undef()); + + emit_op(c, OPCODE_RCP, + tmp0, + 0, 0, 0, + tmp1src, + src_undef(), + src_undef()); + + emit_op(c, OPCODE_MUL, + tmpcoord, + 0, 0, 0, + src0, + tmp0src, + src_undef()); + + release_temp(c, tmp0); + release_temp(c, tmp1); + } else if (inst->TexSrcTarget == TEXTURE_RECT_INDEX) { struct prog_src_register scale = search_or_add_param5( c, STATE_INTERNAL, |