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winewayland.drv: Implement wglShareLists.

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EGL works similarly to GLX, in that it only allows sharing on context
creation, so we adapt the approach used by winex11.
This commit is contained in:
Alexandros Frantzis 2024-02-27 09:29:00 +02:00 • committed by Alexandre Julliard
parent ac32f0a81d
commit 065cbb460b
1 changed files with 47 additions and 0 deletions
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47
dlls/winewayland.drv/opengl.c
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@ -94,6 +94,8 @@ struct wgl_context
EGLContext context;
struct wayland_gl_drawable *draw, *read, *new_draw, *new_read;
EGLint attribs[16];
BOOL has_been_current;
BOOL sharing;
};
/* lookup the existing drawable for a window, gl_object_mutex must be held */
@ -306,6 +308,7 @@ static BOOL wgl_context_make_current(struct wgl_context *ctx, HWND draw_hwnd,
ctx->draw = draw;
ctx->read = read;
ctx->new_draw = ctx->new_read = NULL;
ctx->has_been_current = TRUE;
NtCurrentTeb()->glContext = ctx;
}
else
@ -641,6 +644,49 @@ static BOOL wayland_wglSetPixelFormatWINE(HDC hdc, int format)
return set_pixel_format(hdc, format, TRUE);
}
static BOOL wayland_wglShareLists(struct wgl_context *orig, struct wgl_context *dest)
{
struct wgl_context *keep, *clobber;
TRACE("(%p, %p)\n", orig, dest);
/* Sharing of display lists works differently in EGL and WGL. In case of EGL
* it is done at context creation time but in case of WGL it is done using
* wglShareLists. We create an EGL context in wglCreateContext /
* wglCreateContextAttribsARB and when a program requests sharing we
* recreate the destination or source context if it hasn't been made current
* and it hasn't shared display lists before. */
if (!dest->has_been_current && !dest->sharing)
{
keep = orig;
clobber = dest;
}
else if (!orig->has_been_current && !orig->sharing)
{
keep = dest;
clobber = orig;
}
else
{
ERR("Could not share display lists because both of the contexts have "
"already been current or shared\n");
return FALSE;
}
p_eglDestroyContext(egl_display, clobber->context);
clobber->context = p_eglCreateContext(egl_display, EGL_NO_CONFIG_KHR,
keep->context, clobber->attribs);
TRACE("re-created context (%p) for Wine context %p (%p) "
"sharing lists with ctx %p (%p)\n",
clobber->context, clobber, clobber->config,
keep->context, keep->config);
orig->sharing = TRUE;
dest->sharing = TRUE;
return TRUE;
}
static BOOL wayland_wglSwapBuffers(HDC hdc)
{
struct wgl_context *ctx = NtCurrentTeb()->glContext;
@ -876,6 +922,7 @@ static struct opengl_funcs opengl_funcs =
.p_wglGetProcAddress = wayland_wglGetProcAddress,
.p_wglMakeCurrent = wayland_wglMakeCurrent,
.p_wglSetPixelFormat = wayland_wglSetPixelFormat,
.p_wglShareLists = wayland_wglShareLists,
.p_wglSwapBuffers = wayland_wglSwapBuffers,
}
};