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i965: The cube map texture coordinates must be devided by the

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component with the largest absolute value before they are
delivered. fix bug #12421
This commit is contained in:
Xiang, Haihao 2007-09-26 16:42:50 +08:00
parent 395b3bf6f9
commit 175db68db5
1 changed files with 51 additions and 1 deletions
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52
src/mesa/drivers/dri/i965/brw_wm_fp.c
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@ -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,