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swr: fix support for inverted depth scales 

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Tim Rowley <timothy.o.rowley@intel.com>
This commit is contained in:
Ilia Mirkin 2016-11-09 01:16:32 -05:00
parent aed517f985
commit 4af25e7131
1 changed files with 3 additions and 7 deletions
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10
src/gallium/drivers/swr/swr_state.cpp
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@ -38,6 +38,7 @@
#include "util/u_inlines.h"
#include "util/u_helpers.h"
#include "util/u_framebuffer.h"
#include "util/u_viewport.h"
#include "swr_state.h"
#include "swr_context.h"
@ -951,13 +952,8 @@ swr_update_derived(struct pipe_context *pipe,
vp->width = state->translate[0] + state->scale[0];
vp->y = state->translate[1] - fabs(state->scale[1]);
vp->height = state->translate[1] + fabs(state->scale[1]);
if (rasterizer->clip_halfz == 0) {
vp->minZ = state->translate[2] - state->scale[2];
vp->maxZ = state->translate[2] + state->scale[2];
} else {
vp->minZ = state->translate[2];
vp->maxZ = state->translate[2] + state->scale[2];
}
util_viewport_zmin_zmax(state, rasterizer->clip_halfz,
&vp->minZ, &vp->maxZ);
vpm->m00[0] = state->scale[0];
vpm->m11[0] = state->scale[1];