diff options
Diffstat (limited to 'src/mesa/state_tracker/st_cb_bitmap.c')
| -rw-r--r-- | src/mesa/state_tracker/st_cb_bitmap.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/mesa/state_tracker/st_cb_bitmap.c b/src/mesa/state_tracker/st_cb_bitmap.c index 5968426a1d..0332d4dbdf 100644 --- a/src/mesa/state_tracker/st_cb_bitmap.c +++ b/src/mesa/state_tracker/st_cb_bitmap.c @@ -481,15 +481,18 @@ draw_bitmap_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z, struct pipe_viewport_state vp; vp.scale[0] = 0.5f * width; vp.scale[1] = 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 * width; vp.translate[1] = 0.5f * height; - vp.translate[2] = 0.0f; + vp.translate[2] = 0.5f; vp.translate[3] = 0.0f; cso_set_viewport(cso, &vp); } + /* convert Z from [0,1] to [-1,-1] to match viewport Z scale/bias */ + z = z * 2.0 - 1.0; + /* draw textured quad */ offset = setup_bitmap_vertex_data(st, x, y, width, height, z, color); |