mesa: Drop some version checking around ValidateEGLImage

We can just have the screen check if the loader exports it, and take the
path we would otherwise.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/30245>

src/gallium/frontends/dri/dri_helpers.c

@@ -276,7 +276,10 @@ dri2_validate_egl_image(struct dri_screen *screen, void *handle)
 {
    const __DRIimageLookupExtension *loader = screen->dri2.image;
 
-   return loader->validateEGLImage(handle, screen->loaderPrivate);
+   if (loader)
+      return loader->validateEGLImage(handle, screen->loaderPrivate);
+   else
+      return true;
 }
 
 __DRIimage *

src/gallium/frontends/dri/dri_screen.c

@@ -620,17 +620,15 @@ dri_init_screen(struct dri_screen *screen,
    screen->base.get_egl_image = dri_get_egl_image;
    screen->base.get_param = dri_get_param;
    screen->base.set_background_context = dri_set_background_context;
-
-   if (screen->validate_egl_image)
-      screen->base.validate_egl_image = dri_validate_egl_image;
+   screen->base.validate_egl_image = dri_validate_egl_image;
 
    screen->lookup_egl_image = dri2_lookup_egl_image;
+   screen->validate_egl_image = dri2_validate_egl_image;
    const __DRIimageLookupExtension *image = screen->dri2.image;
    if (image &&
        image->base.version >= 2 &&
        image->validateEGLImage &&
        image->lookupEGLImageValidated) {
-      screen->validate_egl_image = dri2_validate_egl_image;
       screen->lookup_egl_image_validated = dri2_lookup_egl_image_validated;
    }
 

src/mesa/main/dd.h

@@ -247,8 +247,6 @@ struct dd_function_table {
    void (*ShaderCacheSerializeDriverBlob)(struct gl_context *ctx,
                                           struct gl_program *prog);
    /*@}*/
-
-   GLboolean (*ValidateEGLImage)(struct gl_context *ctx, GLeglImageOES image_handle);
 };
 
 #endif /* DD_INCLUDED */

src/mesa/main/fbobject.c

@@ -2934,8 +2934,7 @@ _mesa_EGLImageTargetRenderbufferStorageOES(GLenum target, GLeglImageOES image)
       return;
    }
 
-   if (!image || (ctx->Driver.ValidateEGLImage &&
-                  !ctx->Driver.ValidateEGLImage(ctx, image))) {
+   if (!image || !st_validate_egl_image(ctx, image)) {
       _mesa_error(ctx, GL_INVALID_VALUE,
                   "EGLImageTargetRenderbufferStorageOES");
       return;

src/mesa/main/teximage.c

@@ -3554,8 +3554,7 @@ egl_image_target_texture(struct gl_context *ctx,
    if (!texObj)
       return;
 
-   if (!image || (ctx->Driver.ValidateEGLImage &&
-                  !ctx->Driver.ValidateEGLImage(ctx, image))) {
+   if (!image || !st_validate_egl_image(ctx, image)) {
       _mesa_error(ctx, GL_INVALID_VALUE, "%s(image=%p)", caller, image);
       return;
    }

src/mesa/state_tracker/st_cb_eglimage.c

@@ -507,7 +507,7 @@ st_bind_egl_image(struct gl_context *ctx,
    _mesa_dirty_texobj(ctx, texObj);
 }
 
-static GLboolean
+bool
 st_validate_egl_image(struct gl_context *ctx, GLeglImageOES image_handle)
 {
    struct st_context *st = st_context(ctx);
@@ -515,11 +515,3 @@ st_validate_egl_image(struct gl_context *ctx, GLeglImageOES image_handle)
 
    return fscreen->validate_egl_image(fscreen, (void *)image_handle);
 }
-
-void
-st_init_eglimage_functions(struct dd_function_table *functions,
-                           bool has_egl_image_validate)
-{
-   if (has_egl_image_validate)
-      functions->ValidateEGLImage = st_validate_egl_image;
-}

src/mesa/state_tracker/st_cb_eglimage.h

@@ -31,9 +31,8 @@
 
 struct dd_function_table;
 
-extern void
-st_init_eglimage_functions(struct dd_function_table *functions,
-                           bool has_egl_image_validate);
+bool
+st_validate_egl_image(struct gl_context *ctx, GLeglImageOES image_handle);
 
 bool st_get_egl_image(struct gl_context *ctx, GLeglImageOES image_handle,
                       unsigned usage, bool tex_compression, const char *error,

src/mesa/state_tracker/st_context.c

@@ -806,8 +806,6 @@ st_init_driver_functions(struct pipe_screen *screen,
 {
    st_init_draw_functions(screen, functions);
 
-   st_init_eglimage_functions(functions, has_egl_image_validate);
-
    functions->NewProgram = _mesa_new_program;
    st_init_flush_functions(screen, functions);