RConvertImage and RConvertImageMask now dispatch through function
pointers on RContext, set during context creation:
- RCreateContext sets x11_convert_image/x11_convert_image_mask
- RCreateContextWayland sets wl_convert_image/wl_convert_image_mask
The Wayland backend creates pixman_image_t from RImage RGBA data
instead of returning NULL pixmaps, fixing the SIGSEGV in the exit
dialog when compositing the application icon.
X11 code moved to convert_x11.c, Wayland code in convert_wl.c.
No dpy guards in the middle layer.
Three root causes fixed:
1. RCreateContext crash: wScreenInit called RCreateContext(dpy=NULL).
Fix: add RCreateContextWayland() to wrlib — creates a minimal 32-bit
ARGB context without X11. Wayland path in screen.c now always taken
when is_wayland (removed incorrect XWayland fallthrough).
2. Color parsing: parse_color and get_color_for_colormap were no-ops.
Fix: implement real color parser in wl_backend supporting #RGB,
#RRGGBB, #RRRRGGGGBBBB, rgb:RR/GG/BB, and common named colors.
Texture creation (solid, gradient) now works in Wayland mode.
3. RConvertImage crash: wrlib tried XCreateImage with NULL display.
Fix: RConvertImage/RConvertImageMask return success with pixmap=0
when context->dpy is NULL. Callers don't use pixmaps in Wayland
mode (rendering goes through vtable slots to pixman buffers).
4. Workspace crash: Wayland path skipped wWorkspaceNew(), so
workspace_count=0 when menu tried to access workspace entries.
Fix: add wWorkspaceNew + netwm_init to Wayland screen init path.
Result: compositor starts, event loop runs, window is visible.
WMAKER_USE_WAYLAND=1 wmaker now shows a compositor window.
Levi Neely
Levi Neely