From 9e99735f301ebf85f8d0bfdce2bad441a5aac7f8 Mon Sep 17 00:00:00 2001 From: Chris Forbes Date: Wed, 18 Dec 2013 21:27:59 +1300 Subject: i965: fold offset into coord for textureOffset(gsampler2DRect) The hardware is broken with nonzero texel offsets and unnormalized coordinates; instead of doing correct offsetting, we get garbage. This just extends the existing workaround for ir_txf and ir_tg4+gsampler2DRect to also consider ir_tex+gsampler2DRect. Fixes broken rendering in 'tesseract' when 'mesa_texrectoffset_bug' is not enabled; also fixes the new piglit test 'tests/spec/glsl-1.30/execution/fs-textureOffset-Rect'. Has been broken ~forever; suggesting including this in only 10.0 because the lowering pass doesn't exist in 9.2 or earlier so would require quite a different patch. Signed-off-by: Chris Forbes Reviewed-by: Kenneth Graunke Cc: Lee Salzman Cc: "10.0" --- src/mesa/drivers/dri/i965/brw_lower_unnormalized_offset.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/mesa') diff --git a/src/mesa/drivers/dri/i965/brw_lower_unnormalized_offset.cpp b/src/mesa/drivers/dri/i965/brw_lower_unnormalized_offset.cpp index df4fe4be463..c95d7f3cac7 100644 --- a/src/mesa/drivers/dri/i965/brw_lower_unnormalized_offset.cpp +++ b/src/mesa/drivers/dri/i965/brw_lower_unnormalized_offset.cpp @@ -55,7 +55,7 @@ brw_lower_unnormalized_offset_visitor::visit_leave(ir_texture *ir) if (!ir->offset) return visit_continue; - if (ir->op == ir_tg4) { + if (ir->op == ir_tg4 || ir->op == ir_tex) { if (ir->sampler->type->sampler_dimensionality != GLSL_SAMPLER_DIM_RECT) return visit_continue; } -- cgit v1.2.3