From 5c3be43cd26838cf216bb089fc9eead88906e0e2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Tue, 28 Sep 2010 19:51:19 +0200 Subject: [PATCH] r300/compiler: fix shadow sampling with swizzled coords Taking the W component from coords directly ignores swizzling. Instead, take the component which is mapped to W in the TEX instruction parameter. The same for Z. NOTE: This is a candidate for the 7.9 branch. (cherry picked from commit 7128e1625bea502b9bf083f14606d679c90222a6) Conflicts: src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c --- src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) 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 42c8b597bd7..6c3ce6c6f08 100644 --- a/src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c +++ b/src/mesa/drivers/dri/r300/compiler/radeon_program_tex.c @@ -174,16 +174,18 @@ int radeonTransformTEX( inst_rcp->U.I.DstReg.Index = tmp_recip_w; inst_rcp->U.I.DstReg.WriteMask = RC_MASK_W; inst_rcp->U.I.SrcReg[0] = inst->U.I.SrcReg[0]; - inst_rcp->U.I.SrcReg[0].Swizzle = RC_SWIZZLE_WWWW; + inst_rcp->U.I.SrcReg[0].Swizzle = + RC_MAKE_SWIZZLE_SMEAR(GET_SWZ(inst->U.I.SrcReg[0].Swizzle, 3)); } - /* Perspective-divide r by W (if it's TXP) and add the texture sample (see below). */ + /* Perspective-divide Z by W (if it's TXP) and add the texture sample (see below). */ tmp_sum = rc_find_free_temporary(c); inst_mad = rc_insert_new_instruction(c, inst_rcp ? inst_rcp : inst); inst_mad->U.I.DstReg.File = RC_FILE_TEMPORARY; inst_mad->U.I.DstReg.Index = tmp_sum; inst_mad->U.I.SrcReg[0] = inst->U.I.SrcReg[0]; - inst_mad->U.I.SrcReg[0].Swizzle = RC_SWIZZLE_ZZZZ; + inst_mad->U.I.SrcReg[0].Swizzle = + RC_MAKE_SWIZZLE_SMEAR(GET_SWZ(inst->U.I.SrcReg[0].Swizzle, 2)); if (inst->U.I.Opcode == RC_OPCODE_TXP) { inst_mad->U.I.Opcode = RC_OPCODE_MAD; inst_mad->U.I.SrcReg[1].File = RC_FILE_TEMPORARY;