From b3a68cdc6f4bf2c006aa01f8980536e8e520d62a Mon Sep 17 00:00:00 2001 From: Arpad Borsos Date: Wed, 14 Apr 2010 14:26:32 -0600 Subject: softpipe: Fix division by zero This can be triggered by running the cairo tests using the gl backend and softpipe. Signed-off-by: Brian Paul --- src/gallium/drivers/softpipe/sp_setup.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'src/gallium/drivers') diff --git a/src/gallium/drivers/softpipe/sp_setup.c b/src/gallium/drivers/softpipe/sp_setup.c index 85966bc5e4..e64aee6d82 100644 --- a/src/gallium/drivers/softpipe/sp_setup.c +++ b/src/gallium/drivers/softpipe/sp_setup.c @@ -669,17 +669,17 @@ static void setup_tri_edges( struct setup_context *setup ) setup->emaj.sy = ceilf(vmin_y); setup->emaj.lines = (int) ceilf(vmax_y - setup->emaj.sy); - setup->emaj.dxdy = setup->emaj.dx / setup->emaj.dy; + setup->emaj.dxdy = setup->emaj.dy ? setup->emaj.dx / setup->emaj.dy : .0f; setup->emaj.sx = vmin_x + (setup->emaj.sy - vmin_y) * setup->emaj.dxdy; setup->etop.sy = ceilf(vmid_y); setup->etop.lines = (int) ceilf(vmax_y - setup->etop.sy); - setup->etop.dxdy = setup->etop.dx / setup->etop.dy; + setup->etop.dxdy = setup->etop.dy ? setup->etop.dx / setup->etop.dy : .0f; setup->etop.sx = vmid_x + (setup->etop.sy - vmid_y) * setup->etop.dxdy; setup->ebot.sy = ceilf(vmin_y); setup->ebot.lines = (int) ceilf(vmid_y - setup->ebot.sy); - setup->ebot.dxdy = setup->ebot.dx / setup->ebot.dy; + setup->ebot.dxdy = setup->ebot.dy ? setup->ebot.dx / setup->ebot.dy : .0f; setup->ebot.sx = vmin_x + (setup->ebot.sy - vmin_y) * setup->ebot.dxdy; } -- cgit v1.2.3