Skybox image: fix HDR sky binding; clip checkbox/arrow drawing

The HDR sky materials use the "sky" shader with $hdrcompressedtexture (DXT5).
Assigning an RGBA8 procedural texture there sampled as compressed data and
rendered black. Point $hdrbasetexture at the image, undefine
$hdrcompressedtexture (and its 0/1/2 variants) so the shader falls back, and
call IMaterial::Refresh (37) because the sky shader binds textures in
SHADER_INIT, which is otherwise cached.

GUI: draw_checkbox and the card expand chevron ignored the content clip, so
cards scrolled out of view leaked header widgets outside the window.

Log the first regenerator call (size/pitch/first pixel) for diagnosis.

1 files changed, 17 insertions, 12 deletions

diff --git a/src/gui.cpp b/src/gui.cpp
index eb53dff..ebc1f62 100644
--- a/src/gui.cpp
+++ b/src/gui.cpp
@@ -1672,10 +1672,11 @@ void gui_handle_input() {
 // Draw
 // ---------------------------------------------------------------------------
 
-static void draw_checkbox(int x, int y, bool on) {
+static void draw_checkbox(int x, int y, bool on,
+                          const Rect *clip = nullptr) {
   Rect box{x, y, S(15.0f), S(15.0f)};
-  fill(box, on ? C_ACCENT : Col{30, 34, 42, 255});
-  outline(box, C_BORDER);
+  fill(box, on ? C_ACCENT : Col{30, 34, 42, 255}, clip);
+  outline(box, C_BORDER, clip);
   if (on) {
     line(x + S(3.0f), y + S(8.0f), x + S(7.0f), y + S(12.0f), C_BG);
     line(x + S(7.0f), y + S(12.0f), x + S(13.0f), y + S(4.0f), C_BG);
@@ -1719,14 +1720,17 @@ static void draw_card(const Rect &clip, int index, int y) {
   Rect head{cr.x, cr.y, cr.w, hh};
   fill(head, C_HEADER, &clip);
 
-  // expand arrow
+  // expand arrow (clipped like the rest of the card; header rows of cards
+  // scrolled out of view must not leak into the window chrome)
   int ax = cr.x + S(10.0f), ay = cr.y + (hh - S(8.0f)) / 2;
-  if (c.expanded) {
-    line(ax, ay, ax + S(4.0f), ay + S(5.0f), C_DIM);
-    line(ax + S(4.0f), ay + S(5.0f), ax + S(8.0f), ay, C_DIM);
-  } else {
-    line(ax, ay, ax + S(5.0f), ay + S(4.0f), C_DIM);
-    line(ax + S(5.0f), ay + S(4.0f), ax, ay + S(8.0f), C_DIM);
+  if (ay >= clip.y && ay + S(8.0f) <= clip.y + clip.h) {
+    if (c.expanded) {
+      line(ax, ay, ax + S(4.0f), ay + S(5.0f), C_DIM);
+      line(ax + S(4.0f), ay + S(5.0f), ax + S(8.0f), ay, C_DIM);
+    } else {
+      line(ax, ay, ax + S(5.0f), ay + S(4.0f), C_DIM);
+      line(ax + S(5.0f), ay + S(4.0f), ax, ay + S(8.0f), C_DIM);
+    }
   }
 
   // title (wraps instead of truncating)
@@ -1741,7 +1745,7 @@ static void draw_card(const Rect &clip, int index, int y) {
   if (c.feat) {
     bool active = c.feat->active;
     int active_y = cr.y + (hh - S(18.0f)) / 2;
-    draw_checkbox(cr.x + cr.w - S(170.0f), active_y, active);
+    draw_checkbox(cr.x + cr.w - S(170.0f), active_y, active, &clip);
     text_in(clip, cr.x + cr.w - S(148.0f),
             active_y + (S(18.0f) - g_body_h) / 2, active ? "On" : "Off",
             g_font_body, g_body_h, 0, active ? C_GOOD : C_DIM);
@@ -1798,7 +1802,8 @@ static void draw_card(const Rect &clip, int index, int y) {
                    maxw, C_TEXT, S(2.0f));
       if (ct.kind == CK_TOGGLE) {
         bool on = ctrl_val(ct) != 0;
-        draw_checkbox(cr.x + cr.w - S(31.0f), by + (rh - S(15.0f)) / 2, on);
+        draw_checkbox(cr.x + cr.w - S(31.0f), by + (rh - S(15.0f)) / 2, on,
+                      &clip);
         text_in(clip, cr.x + cr.w - S(58.0f), by + (rh - g_body_h) / 2,
                 on ? "On" : "Off", g_font_body, g_body_h, 0,
                 on ? C_GOOD : C_DIM);