vrend: Move virgl_has_gl_colorspace and dependencies to vrend_renderer.c

The function is used from vrend_renderer.c, so it also should be
part of the libvrend.la conveniance library. This requires that the
CONTEXT enums and the variable egl are also part of this library.

Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

src/virglrenderer.c

@@ -42,7 +42,6 @@
 #include "virgl_gbm.h"
 #include "virgl_egl.h"
 struct virgl_gbm *gbm = NULL;
-struct virgl_egl *egl = NULL;
 #endif
 
 #ifdef HAVE_EPOXY_GLX_H
@@ -50,14 +49,6 @@ struct virgl_egl *egl = NULL;
 static struct virgl_glx *glx_info;
 #endif
 
-enum {
-   CONTEXT_NONE,
-   CONTEXT_EGL,
-   CONTEXT_GLX
-};
-
-static int use_context = CONTEXT_NONE;
-
 /* new API - just wrap internal API for now */
 
 int virgl_renderer_resource_create(struct virgl_renderer_resource_create_args *args, struct iovec *iov, uint32_t num_iovs)
@@ -207,18 +198,6 @@ int virgl_renderer_resource_get_info(int res_handle,
    return ret;
 }
 
-int virgl_has_gl_colorspace(void)
-{
-   bool egl_colorspace = false;
-#ifdef HAVE_EPOXY_EGL_H
-   if (egl)
-      egl_colorspace = virgl_has_egl_khr_gl_colorspace(egl);
-#endif
-   return use_context == CONTEXT_NONE ||
-         use_context == CONTEXT_GLX ||
-         (use_context == CONTEXT_EGL && egl_colorspace);
-}
-
 void virgl_renderer_get_cap_set(uint32_t cap_set, uint32_t *max_ver,
                                 uint32_t *max_size)
 {

src/vrend_renderer.c

@@ -68,6 +68,8 @@ extern struct virgl_egl *egl;
 /* debugging via KHR_debug extension */
 int vrend_use_debug_cb = 0;
 
+int use_context = CONTEXT_NONE;
+
 static const uint32_t fake_occlusion_query_samples_passed_default = 1024;
 
 struct vrend_if_cbs *vrend_clicbs;
@@ -9913,6 +9915,23 @@ void vrend_print_context_name(struct vrend_context *ctx)
       vrend_printf("HOST: ");
 }
 
+#ifdef HAVE_EPOXY_EGL_H
+struct virgl_egl *egl = NULL;
+#endif
+
+int virgl_has_gl_colorspace(void)
+{
+   bool egl_colorspace = false;
+#ifdef HAVE_EPOXY_EGL_H
+   if (egl)
+      egl_colorspace = virgl_has_egl_khr_gl_colorspace(egl);
+#endif
+   return use_context == CONTEXT_NONE ||
+         use_context == CONTEXT_GLX ||
+         (use_context == CONTEXT_EGL && egl_colorspace);
+}
+
+
 void vrend_renderer_destroy_sub_ctx(struct vrend_context *ctx, int sub_ctx_id)
 {
    struct vrend_sub_context *sub, *tofree = NULL;

src/vrend_renderer.h

@@ -61,6 +61,18 @@ enum vrend_resource_storage_type {
    VREND_RESOURCE_STORAGE_GBM_ONLY,
 };
 
+enum {
+   CONTEXT_NONE,
+   CONTEXT_EGL,
+   CONTEXT_GLX
+};
+
+extern int use_context;
+#ifdef HAVE_EPOXY_EGL_H
+extern struct virgl_egl *egl;
+#endif
+
+
 struct vrend_resource {
    struct pipe_resource base;
    GLuint id;