[PATCH 2/3] xf86Crtc: setup tiled monitors correctly in right of

[Dave Airlie]

From: Dave Airlie <airlied at redhat.com>

This puts the tiles of the monitor in the right place at
X server startup.

Signed-off-by: Dave Airlie <airlied at redhat.com>
---
 hw/xfree86/modes/xf86Crtc.c | 62 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/hw/xfree86/modes/xf86Crtc.c b/hw/xfree86/modes/xf86Crtc.c
index 8a4ef5e..5c854b2 100644
--- a/hw/xfree86/modes/xf86Crtc.c
+++ b/hw/xfree86/modes/xf86Crtc.c
@@ -2121,6 +2121,7 @@ numEnabledOutputs(xf86CrtcConfigPtr config, Bool *enabled)
     return i;
 }
 
+
 static Bool
 xf86TargetRightOf(ScrnInfoPtr scrn, xf86CrtcConfigPtr config,
                   DisplayModePtr *modes, Bool *enabled,
@@ -2128,6 +2129,8 @@ xf86TargetRightOf(ScrnInfoPtr scrn, xf86CrtcConfigPtr config,
 {
     int o;
     int w = 0;
+    Bool has_tile = FALSE;
+    uint32_t configured_outputs;
 
     if (scrn->preferClone)
         return FALSE;
@@ -2149,16 +2152,75 @@ xf86TargetRightOf(ScrnInfoPtr scrn, xf86CrtcConfigPtr config,
         return FALSE;
 
     w = 0;
+    configured_outputs = 0;
+
     for (o = -1; nextEnabledOutput(config, enabled, &o); ) {
         DisplayModePtr mode =
             xf86OutputHasPreferredMode(config->output[o], width, height);
 
+        if (configured_outputs & (1 << o))
+            continue;
+
+        if (config->output[o]->tile_info.group_id) {
+            has_tile = TRUE;
+            continue;
+        }
+
         config->output[o]->initial_x = w;
         w += mode->HDisplay;
 
+        configured_outputs |= (1 << o);
         modes[o] = mode;
     }
 
+    if (has_tile) {
+        for (o = -1; nextEnabledOutput(config, enabled, &o); ) {
+            int ht, vt, ot;
+            int add_x, cur_x = w;
+            struct xf86CrtcTileInfo *tile_info = &config->output[o]->tile_info, *this_tile;
+            if (configured_outputs & (1 << o))
+                continue;
+            if (!tile_info->group_id)
+                continue;
+
+            if (tile_info->tile_h_loc != 0 && tile_info->tile_v_loc != 0)
+                continue;
+
+            for (ht = 0; ht < tile_info->num_h_tile; ht++) {
+                int cur_y = 0;
+                add_x = 0;
+                for (vt = 0; vt < tile_info->num_v_tile; vt++) {
+
+                    for (ot = -1; nextEnabledOutput(config, enabled, &ot); ) {
+
+                        DisplayModePtr mode =
+                            xf86OutputHasPreferredMode(config->output[ot], width, height);
+                        if (!config->output[ot]->tile_info.group_id)
+                            continue;
+
+                        this_tile = &config->output[ot]->tile_info;
+                        if (this_tile->group_id != tile_info->group_id)
+                            continue;
+
+                        if (this_tile->tile_h_loc != ht ||
+                            this_tile->tile_v_loc != vt)
+                            continue;
+
+                        config->output[ot]->initial_x = cur_x;
+                        config->output[ot]->initial_y = cur_y;
+
+                        if (vt == 0)
+                            add_x = this_tile->tile_h_size;
+                        cur_y += this_tile->tile_v_size;
+                        configured_outputs |= (1 << ot);
+                        modes[ot] = mode;
+                    }
+                }
+                cur_x += add_x;
+            }
+            w = cur_x;
+        }
+    }
     return TRUE;
 }
 
-- 
2.3.3