gallium: Replace gl_rasterization_rules with lower_left_origin and half_pixel_center.

Squashed commit of the following:

commit 04c5fa2cbb8e89d6f2fa5a75af1cca03b1f6b852
Author: José Fonseca <jfonseca@vmware.com>
Date:   Tue Apr 23 17:37:18 2013 +0100

    gallium: s/lower_left_origin/bottom_edge_rule/

commit 4dff4f64fa83b9737def136fffd161d55e4f1722
Author: José Fonseca <jfonseca@vmware.com>
Date:   Tue Apr 23 17:35:04 2013 +0100

    gallium: Move diagram to docs.

commit 442a63012c8c3c3797f45e03f2ca20ad5f399832
Author: James Benton <jbenton@vmware.com>
Date:   Fri May 11 17:50:55 2012 +0100

    gallium: Replace gl_rasterization_rules with lower_left_origin and half_pixel_center.

    This change is necessary to achieve correct results when using OpenGL
    FBOs.

Reviewed-by: Marek Olšák <maraeo@gmail.com>

6 files changed, 12 insertions, 6 deletions

diff --git a/src/gallium/auxiliary/vl/vl_compositor.c b/src/gallium/auxiliary/vl/vl_compositor.c
index fecf3c9287f..0df2b570d00 100644
--- a/src/gallium/auxiliary/vl/vl_compositor.c
+++ b/src/gallium/auxiliary/vl/vl_compositor.c
@@ -453,7 +453,8 @@ init_pipe_state(struct vl_compositor *c)
    rast.point_size_per_vertex = 1;
    rast.offset_units = 1;
    rast.offset_scale = 1;
-   rast.gl_rasterization_rules = 1;
+   rast.half_pixel_center = 1;
+   rast.bottom_edge_rule = 1;
    rast.depth_clip = 1;
 
    c->rast = c->pipe->create_rasterizer_state(c->pipe, &rast);
diff --git a/src/gallium/auxiliary/vl/vl_idct.c b/src/gallium/auxiliary/vl/vl_idct.c
index a0c243f809a..bd73dfd40f7 100644
--- a/src/gallium/auxiliary/vl/vl_idct.c
+++ b/src/gallium/auxiliary/vl/vl_idct.c
@@ -516,7 +516,8 @@ init_state(struct vl_idct *idct)
 
    memset(&rs_state, 0, sizeof(rs_state));
    rs_state.point_size = 1;
-   rs_state.gl_rasterization_rules = true;
+   rs_state.half_pixel_center = true;
+   rs_state.bottom_edge_rule = true;
    rs_state.depth_clip = 1;
    idct->rs_state = idct->pipe->create_rasterizer_state(idct->pipe, &rs_state);
    if (!idct->rs_state)
diff --git a/src/gallium/auxiliary/vl/vl_matrix_filter.c b/src/gallium/auxiliary/vl/vl_matrix_filter.c
index 438bedab226..cda90ff10eb 100644
--- a/src/gallium/auxiliary/vl/vl_matrix_filter.c
+++ b/src/gallium/auxiliary/vl/vl_matrix_filter.c
@@ -168,7 +168,8 @@ vl_matrix_filter_init(struct vl_matrix_filter *filter, struct pipe_context *pipe
    filter->pipe = pipe;
 
    memset(&rs_state, 0, sizeof(rs_state));
-   rs_state.gl_rasterization_rules = true;
+   rs_state.half_pixel_center = true;
+   rs_state.bottom_edge_rule = true;
    rs_state.depth_clip = 1;
    filter->rs_state = pipe->create_rasterizer_state(pipe, &rs_state);
    if (!filter->rs_state)
diff --git a/src/gallium/auxiliary/vl/vl_mc.c b/src/gallium/auxiliary/vl/vl_mc.c
index d395cc2d57c..b4272093655 100644
--- a/src/gallium/auxiliary/vl/vl_mc.c
+++ b/src/gallium/auxiliary/vl/vl_mc.c
@@ -428,7 +428,8 @@ init_pipe_state(struct vl_mc *r)
    rs_state.sprite_coord_mode = PIPE_SPRITE_COORD_UPPER_LEFT;
    rs_state.point_quad_rasterization = true;
    rs_state.point_size = VL_BLOCK_WIDTH;
-   rs_state.gl_rasterization_rules = true;
+   rs_state.half_pixel_center = true;
+   rs_state.bottom_edge_rule = true;
    rs_state.depth_clip = 1;
    r->rs_state = r->pipe->create_rasterizer_state(r->pipe, &rs_state);
    if (!r->rs_state)
diff --git a/src/gallium/auxiliary/vl/vl_median_filter.c b/src/gallium/auxiliary/vl/vl_median_filter.c
index dfa280a6d2a..2db147904b8 100644
--- a/src/gallium/auxiliary/vl/vl_median_filter.c
+++ b/src/gallium/auxiliary/vl/vl_median_filter.c
@@ -254,7 +254,8 @@ vl_median_filter_init(struct vl_median_filter *filter, struct pipe_context *pipe
    filter->pipe = pipe;
 
    memset(&rs_state, 0, sizeof(rs_state));
-   rs_state.gl_rasterization_rules = true;
+   rs_state.half_pixel_center = true;
+   rs_state.bottom_edge_rule = true;
    rs_state.depth_clip = 1;
    filter->rs_state = pipe->create_rasterizer_state(pipe, &rs_state);
    if (!filter->rs_state)
diff --git a/src/gallium/auxiliary/vl/vl_zscan.c b/src/gallium/auxiliary/vl/vl_zscan.c
index 53c2e801c2d..262fb0dc491 100644
--- a/src/gallium/auxiliary/vl/vl_zscan.c
+++ b/src/gallium/auxiliary/vl/vl_zscan.c
@@ -270,7 +270,8 @@ init_state(struct vl_zscan *zscan)
    assert(zscan);
 
    memset(&rs_state, 0, sizeof(rs_state));
-   rs_state.gl_rasterization_rules = true;
+   rs_state.half_pixel_center = true;
+   rs_state.bottom_edge_rule = true;
    rs_state.depth_clip = 1;
    zscan->rs_state = zscan->pipe->create_rasterizer_state(zscan->pipe, &rs_state);
    if (!zscan->rs_state)