Module: Mesa Branch: master Commit: b9eb573600ff6d654bbc27d1fc5e935e5a74b071 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=b9eb573600ff6d654bbc27d1fc5e935e5a74b071
Author: Roland Scheidegger <srol...@vmware.com> Date: Tue Mar 5 17:24:32 2013 +0100 tgsi: handle projection modifier for array textures. This partly reverts 6ace2e41da7dded630d932d03bacb7e14a93d47a. Apparently with GL_MESA_texture_array fixed-function texturing with texture arrays is possible, and hence we have to handle TXP. (Though noone seems to know the semantics, softpipe now does what it did before, which is to NOT project the array coord, llvmpipe for instance however indeed does project the array coord. Unlike before it will project the comparison coord for shadow1d array, as that clearly was an error.) This fixes https://bugs.freedesktop.org/show_bug.cgi?id=61828. Reviewed-by: Brian Paul <bri...@vmware.com> --- src/gallium/auxiliary/tgsi/tgsi_exec.c | 14 +++++++++++--- 1 files changed, 11 insertions(+), 3 deletions(-) diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c index da5594b..6a74ef3 100644 --- a/src/gallium/auxiliary/tgsi/tgsi_exec.c +++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c @@ -1908,7 +1908,9 @@ exec_tex(struct tgsi_exec_machine *mach, FETCH(&r[0], 0, TGSI_CHAN_X); FETCH(&r[1], 0, TGSI_CHAN_Y); - assert(modifier != TEX_MODIFIER_PROJECTED); + if (modifier == TEX_MODIFIER_PROJECTED) { + micro_div(&r[0], &r[0], &r[3]); + } fetch_texel(mach->Sampler, unit, unit, &r[0], &r[1], &ZeroVec, &ZeroVec, lod, /* S, T, P, C, LOD */ @@ -1920,7 +1922,10 @@ exec_tex(struct tgsi_exec_machine *mach, FETCH(&r[1], 0, TGSI_CHAN_Y); FETCH(&r[2], 0, TGSI_CHAN_Z); - assert(modifier != TEX_MODIFIER_PROJECTED); + if (modifier == TEX_MODIFIER_PROJECTED) { + micro_div(&r[0], &r[0], &r[3]); + micro_div(&r[2], &r[2], &r[3]); + } fetch_texel(mach->Sampler, unit, unit, &r[0], &r[1], &r[2], &ZeroVec, lod, /* S, T, P, C, LOD */ @@ -1933,7 +1938,10 @@ exec_tex(struct tgsi_exec_machine *mach, FETCH(&r[1], 0, TGSI_CHAN_Y); FETCH(&r[2], 0, TGSI_CHAN_Z); - assert(modifier != TEX_MODIFIER_PROJECTED); + if (modifier == TEX_MODIFIER_PROJECTED) { + micro_div(&r[0], &r[0], &r[3]); + micro_div(&r[1], &r[1], &r[3]); + } fetch_texel(mach->Sampler, unit, unit, &r[0], &r[1], &r[2], &ZeroVec, lod, /* S, T, P, C, LOD */ _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-commit
