diff options
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_cb_clear.c')
| -rw-r--r-- | mesalib/src/mesa/state_tracker/st_cb_clear.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_cb_clear.c b/mesalib/src/mesa/state_tracker/st_cb_clear.c index 4bfa8d75a..2c1414e48 100644 --- a/mesalib/src/mesa/state_tracker/st_cb_clear.c +++ b/mesalib/src/mesa/state_tracker/st_cb_clear.c @@ -173,6 +173,9 @@ draw_quad(struct st_context *st, return; } + /* Convert Z from [0,1] to [-1,1] range */ + z = z * 2.0f - 1.0f; + /* positions */ vertices[0][0][0] = x0; vertices[0][0][1] = y0; @@ -319,11 +322,11 @@ clear_with_quad(struct gl_context *ctx, unsigned clear_buffers) struct pipe_viewport_state vp; vp.scale[0] = 0.5f * fb_width; vp.scale[1] = fb_height * (invert ? -0.5f : 0.5f); - vp.scale[2] = 1.0f; + vp.scale[2] = 0.5f; vp.scale[3] = 1.0f; vp.translate[0] = 0.5f * fb_width; vp.translate[1] = 0.5f * fb_height; - vp.translate[2] = 0.0f; + vp.translate[2] = 0.5f; vp.translate[3] = 0.0f; cso_set_viewport(st->cso_context, &vp); } |