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i965g: calculate depth min/max

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Previously hard-wired to 0..1
This commit is contained in:
Keith Whitwell 2009-12-22 10:14:59 +00:00
parent b7b2226a75
commit 9546c3dbd2
1 changed files with 9 additions and 2 deletions
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11
src/gallium/drivers/i965/brw_pipe_fb.c
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@ -3,6 +3,7 @@
#include "pipe/p_state.h"
#include "brw_context.h"
#include "brw_debug.h"
/**
* called from intelDrawBuffer()
@ -51,8 +52,14 @@ static void brw_set_viewport_state( struct pipe_context *pipe,
struct brw_context *brw = brw_context(pipe);
brw->curr.viewport = *viewport;
brw->curr.ccv.min_depth = 0.0; /* XXX: near */
brw->curr.ccv.max_depth = 1.0; /* XXX: far */
brw->curr.ccv.min_depth = viewport->scale[2] * -1.0 + viewport->translate[2];
brw->curr.ccv.max_depth = viewport->scale[2] * 1.0 + viewport->translate[2];
if (0)
debug_printf("%s depth range %f .. %f\n",
__FUNCTION__,
brw->curr.ccv.min_depth,
brw->curr.ccv.max_depth);
brw->state.dirty.mesa |= PIPE_NEW_VIEWPORT;
}