From 5ccef84c018c5e99bf4b8cffb5ba1bb66bf40cc4 Mon Sep 17 00:00:00 2001 From: Robert Ellison Date: Thu, 18 Dec 2008 09:46:53 -0700 Subject: Gallium: fix for conform test The following construction in util_surface_copy() in gallium/auxiliary/util/u_rect.c, introduced in commit d177c9ddda2c452cf7d6696d89cf4458ef986f98, incorrectly inverts the Y coordinate in the last parameter to pipe_copy_rect(). /* If do_flip, invert src_y position and pass negative src stride */ pipe_copy_rect(dst_map, &dst->block, dst->stride, dst_x, dst_y, w, h, src_map, do_flip ? -(int) src->stride : src->stride, src_x, do_flip ? w - src_y : src_y); The intention is to start at the last Y coordinate line and move backwards, in the case of a flip; in that case, the correct calculation is "src_y + h - 1", not "w - src_y". This fixes a Gallium assertion failure in the conformance tests: u_rect.c:65:pipe_copy_rect: Assertion `src_y >= 0' failed. debug_get_bool_option: GALLIUM_ABORT_ON_ASSERT = TRUE Trace/breakpoint trap --- src/gallium/auxiliary/util/u_rect.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/gallium/auxiliary/util/u_rect.c b/src/gallium/auxiliary/util/u_rect.c index 30f32413d7..fe81a685be 100644 --- a/src/gallium/auxiliary/util/u_rect.c +++ b/src/gallium/auxiliary/util/u_rect.c @@ -223,7 +223,7 @@ util_surface_copy(struct pipe_context *pipe, src_map, do_flip ? -(int) src->stride : src->stride, src_x, - do_flip ? w - src_y : src_y); + do_flip ? src_y + h - 1 : src_y); } pipe->screen->surface_unmap(pipe->screen, src); -- cgit v1.2.3