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src/glx/applegl_glx.c

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+/*
+ * Copyright © 2010 Intel Corporation
+ * Copyright © 2011 Apple Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Soft-
+ * ware"), to deal in the Software without restriction, including without
+ * limitation the rights to use, copy, modify, merge, publish, distribute,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, provided that the above copyright
+ * notice(s) and this permission notice appear in all copies of the Soft-
+ * ware and that both the above copyright notice(s) and this permission
+ * notice appear in supporting documentation.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABIL-
+ * ITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY
+ * RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN
+ * THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSE-
+ * QUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFOR-
+ * MANCE OF THIS SOFTWARE.
+ *
+ * Except as contained in this notice, the name of a copyright holder shall
+ * not be used in advertising or otherwise to promote the sale, use or
+ * other dealings in this Software without prior written authorization of
+ * the copyright holder.
+ *
+ * Authors:
+ *   Kristian Høgsberg ([email protected])
+ */
+
+#if defined(GLX_USE_APPLEGL)
+
+#include <stdbool.h>
+#include <dlfcn.h>
+
+#include "glxclient.h"
+#include "apple/apple_glx_context.h"
+#include "apple/apple_glx.h"
+#include "apple/apple_cgl.h"
+#include "glx_error.h"
+
+static void
+applegl_destroy_context(struct glx_context *gc)
+{
+   apple_glx_destroy_context(&gc->driContext, gc->psc->dpy);
+}
+
+static int
+applegl_bind_context(
+    struct glx_context *gc,
+    GLXDrawable draw, GLXDrawable read)
+{
+   Display *dpy = gc->psc->dpy;
+   bool error = apple_glx_make_current_context(
+       dpy,
+       NULL,
+       gc ? gc->driContext : NULL, draw);
+
+   apple_glx_diagnostic("%s: error %s\n", __func__, error ? "YES" : "NO");
+   if (error)
+      return 1; /* GLXBadContext is the same as Success (0) */
+
+   apple_mesa_glapi_set_dispatch();
+
+   return Success;
+}
+
+static void
+applegl_unbind_context(struct glx_context *gc)
+{
+   Display *dpy;
+   bool error;
+
+   /* If we don't have a context, then we have nothing to unbind */
+   if (!gc)
+      return;
+
+   dpy = gc->psc->dpy;
+
+   error = apple_glx_make_current_context(
+       dpy,
+       (gc != &dummyContext) ? gc->driContext : NULL,
+       NULL, None);
+
+   apple_glx_diagnostic("%s: error %s\n", __func__, error ? "YES" : "NO");
+}
+
+static void
+applegl_wait_gl(struct glx_context *gc)
+{
+   glFinish();
+}
+
+static void
+applegl_wait_x(struct glx_context *gc)
+{
+   Display *dpy = gc->psc->dpy;
+   apple_glx_waitx(dpy, gc->driContext);
+}
+
+void *
+applegl_get_proc_address(const char *symbol)
+{
+   return dlsym(apple_cgl_get_dl_handle(), symbol);
+}
+
+static const struct glx_context_vtable applegl_context_vtable = {
+   .destroy             = applegl_destroy_context,
+   .bind                = applegl_bind_context,
+   .unbind              = applegl_unbind_context,
+   .wait_gl             = applegl_wait_gl,
+   .wait_x              = applegl_wait_x,
+};
+
+struct glx_context *
+applegl_create_context(
+    struct glx_screen *psc,
+    struct glx_config *config,
+    struct glx_context *shareList, int renderType)
+{
+   struct glx_context *gc;
+   int errorcode;
+   bool x11error;
+   Display *dpy = psc->dpy;
+   int screen = psc->scr;
+
+   /* TODO: Integrate this with apple_glx_create_context and make
+    * struct apple_glx_context inherit from struct glx_context. */
+
+   if (!config)
+      return NULL;
+
+   gc = calloc(1, sizeof(*gc));
+   if (gc == NULL)
+      return NULL;
+
+   if (!glx_context_init(gc, psc, config)) {
+      free(gc);
+      return NULL;
+   }
+
+   gc->vtable = &applegl_context_vtable;
+   gc->driContext = NULL;
+
+   /* TODO: darwin: Integrate with above to do indirect */
+   if (apple_glx_create_context(&gc->driContext, dpy, screen, config,
+                                shareList ? shareList->driContext : NULL,
+                                &errorcode, &x11error)) {
+      __glXSendError(dpy, errorcode, 0, X_GLXCreateContext, x11error);
+      gc->vtable->destroy(gc);
+      return NULL;
+   }
+
+   gc->currentContextTag = -1;
+   gc->config = config;
+   gc->isDirect = GL_TRUE;
+   gc->xid = 1; /* Just something not None, so we know when to destroy
+                 * it in MakeContextCurrent. */
+
+   return gc;
+}
+
+static const struct glx_screen_vtable applegl_screen_vtable = {
+   .create_context         = applegl_create_context,
+   .create_context_attribs = NULL,
+   .query_renderer_integer = NULL,
+   .query_renderer_string  = NULL,
+};
+
+struct glx_screen *
+applegl_create_screen(int screen, struct glx_display * priv)
+{
+   struct glx_screen *psc;
+
+   psc = calloc(1, sizeof *psc);
+   if (psc == NULL)
+      return NULL;
+
+   glx_screen_init(psc, screen, priv);
+   psc->vtable = &applegl_screen_vtable;
+
+   return psc;
+}
+
+int
+applegl_create_display(struct glx_display *glx_dpy)
+{
+   if(!apple_init_glx(glx_dpy->dpy))
+      return 1;
+
+   return GLXBadContext;
+}
+
+#endif