gallium/drivers: Create Galahad from identity.

Galahad is a sanity-checking layer meant to replace the crufty and
scattered sanity checks inside drivers with a robust, non-silenceable,
useful set of warnings and errors that can be used to keep misbehaving
state trackers from going unnoticed.

1 files changed, 325 insertions, 0 deletions

diff --git a/src/gallium/drivers/galahad/glhd_screen.c b/src/gallium/drivers/galahad/glhd_screen.c
new file mode 100644
index 00000000000..3f56c3bafdf
--- /dev/null
+++ b/src/gallium/drivers/galahad/glhd_screen.c
@@ -0,0 +1,325 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+
+#include "pipe/p_screen.h"
+#include "pipe/p_state.h"
+#include "util/u_memory.h"
+
+#include "glhd_public.h"
+#include "glhd_screen.h"
+#include "glhd_context.h"
+#include "glhd_objects.h"
+
+
+static void
+galahad_screen_destroy(struct pipe_screen *_screen)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+
+   screen->destroy(screen);
+
+   FREE(glhd_screen);
+}
+
+static const char *
+galahad_screen_get_name(struct pipe_screen *_screen)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+
+   return screen->get_name(screen);
+}
+
+static const char *
+galahad_screen_get_vendor(struct pipe_screen *_screen)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+
+   return screen->get_vendor(screen);
+}
+
+static int
+galahad_screen_get_param(struct pipe_screen *_screen,
+                          enum pipe_cap param)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+
+   return screen->get_param(screen,
+                            param);
+}
+
+static float
+galahad_screen_get_paramf(struct pipe_screen *_screen,
+                           enum pipe_cap param)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+
+   return screen->get_paramf(screen,
+                             param);
+}
+
+static boolean
+galahad_screen_is_format_supported(struct pipe_screen *_screen,
+                                    enum pipe_format format,
+                                    enum pipe_texture_target target,
+                                    unsigned sample_count,
+                                    unsigned tex_usage,
+                                    unsigned geom_flags)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+
+   return screen->is_format_supported(screen,
+                                      format,
+                                      target,
+                                      sample_count,
+                                      tex_usage,
+                                      geom_flags);
+}
+
+static struct pipe_context *
+galahad_screen_context_create(struct pipe_screen *_screen,
+                               void *priv)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+   struct pipe_context *result;
+
+   result = screen->context_create(screen, priv);
+   if (result)
+      return galahad_context_create(_screen, result);
+   return NULL;
+}
+
+static struct pipe_resource *
+galahad_screen_resource_create(struct pipe_screen *_screen,
+                                const struct pipe_resource *templat)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+   struct pipe_resource *result;
+
+   result = screen->resource_create(screen,
+                                    templat);
+
+   if (result)
+      return galahad_resource_create(glhd_screen, result);
+   return NULL;
+}
+
+static struct pipe_resource *
+galahad_screen_resource_from_handle(struct pipe_screen *_screen,
+                                     const struct pipe_resource *templ,
+                                     struct winsys_handle *handle)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+   struct pipe_resource *result;
+
+   /* TODO trace call */
+
+   result = screen->resource_from_handle(screen, templ, handle);
+
+   result = galahad_resource_create(galahad_screen(_screen), result);
+
+   return result;
+}
+
+static boolean
+galahad_screen_resource_get_handle(struct pipe_screen *_screen,
+                                    struct pipe_resource *_resource,
+                                    struct winsys_handle *handle)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct galahad_resource *glhd_resource = galahad_resource(_resource);
+   struct pipe_screen *screen = glhd_screen->screen;
+   struct pipe_resource *resource = glhd_resource->resource;
+
+   /* TODO trace call */
+
+   return screen->resource_get_handle(screen, resource, handle);
+}
+
+
+
+static void
+galahad_screen_resource_destroy(struct pipe_screen *screen,
+                                 struct pipe_resource *_resource)
+{
+   galahad_resource_destroy(galahad_resource(_resource));
+}
+
+static struct pipe_surface *
+galahad_screen_get_tex_surface(struct pipe_screen *_screen,
+                                struct pipe_resource *_resource,
+                                unsigned face,
+                                unsigned level,
+                                unsigned zslice,
+                                unsigned usage)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct galahad_resource *glhd_resource = galahad_resource(_resource);
+   struct pipe_screen *screen = glhd_screen->screen;
+   struct pipe_resource *resource = glhd_resource->resource;
+   struct pipe_surface *result;
+
+   result = screen->get_tex_surface(screen,
+                                    resource,
+                                    face,
+                                    level,
+                                    zslice,
+                                    usage);
+
+   if (result)
+      return galahad_surface_create(glhd_resource, result);
+   return NULL;
+}
+
+static void
+galahad_screen_tex_surface_destroy(struct pipe_surface *_surface)
+{
+   galahad_surface_destroy(galahad_surface(_surface));
+}
+
+
+
+static struct pipe_resource *
+galahad_screen_user_buffer_create(struct pipe_screen *_screen,
+                                   void *ptr,
+                                   unsigned bytes,
+                                   unsigned usage)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+   struct pipe_resource *result;
+
+   result = screen->user_buffer_create(screen,
+                                       ptr,
+                                       bytes,
+                                       usage);
+
+   if (result)
+      return galahad_resource_create(glhd_screen, result);
+   return NULL;
+}
+
+
+
+static void
+galahad_screen_flush_frontbuffer(struct pipe_screen *_screen,
+                                  struct pipe_surface *_surface,
+                                  void *context_private)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct galahad_surface *glhd_surface = galahad_surface(_surface);
+   struct pipe_screen *screen = glhd_screen->screen;
+   struct pipe_surface *surface = glhd_surface->surface;
+
+   screen->flush_frontbuffer(screen,
+                             surface,
+                             context_private);
+}
+
+static void
+galahad_screen_fence_reference(struct pipe_screen *_screen,
+                                struct pipe_fence_handle **ptr,
+                                struct pipe_fence_handle *fence)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+
+   screen->fence_reference(screen,
+                           ptr,
+                           fence);
+}
+
+static int
+galahad_screen_fence_signalled(struct pipe_screen *_screen,
+                                struct pipe_fence_handle *fence,
+                                unsigned flags)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+
+   return screen->fence_signalled(screen,
+                                  fence,
+                                  flags);
+}
+
+static int
+galahad_screen_fence_finish(struct pipe_screen *_screen,
+                             struct pipe_fence_handle *fence,
+                             unsigned flags)
+{
+   struct galahad_screen *glhd_screen = galahad_screen(_screen);
+   struct pipe_screen *screen = glhd_screen->screen;
+
+   return screen->fence_finish(screen,
+                               fence,
+                               flags);
+}
+
+struct pipe_screen *
+galahad_screen_create(struct pipe_screen *screen)
+{
+   struct galahad_screen *glhd_screen;
+
+   glhd_screen = CALLOC_STRUCT(galahad_screen);
+   if (!glhd_screen) {
+      return NULL;
+   }
+
+   glhd_screen->base.winsys = NULL;
+
+   glhd_screen->base.destroy = galahad_screen_destroy;
+   glhd_screen->base.get_name = galahad_screen_get_name;
+   glhd_screen->base.get_vendor = galahad_screen_get_vendor;
+   glhd_screen->base.get_param = galahad_screen_get_param;
+   glhd_screen->base.get_paramf = galahad_screen_get_paramf;
+   glhd_screen->base.is_format_supported = galahad_screen_is_format_supported;
+   glhd_screen->base.context_create = galahad_screen_context_create;
+   glhd_screen->base.resource_create = galahad_screen_resource_create;
+   glhd_screen->base.resource_from_handle = galahad_screen_resource_from_handle;
+   glhd_screen->base.resource_get_handle = galahad_screen_resource_get_handle;
+   glhd_screen->base.resource_destroy = galahad_screen_resource_destroy;
+   glhd_screen->base.get_tex_surface = galahad_screen_get_tex_surface;
+   glhd_screen->base.tex_surface_destroy = galahad_screen_tex_surface_destroy;
+   glhd_screen->base.user_buffer_create = galahad_screen_user_buffer_create;
+   glhd_screen->base.flush_frontbuffer = galahad_screen_flush_frontbuffer;
+   glhd_screen->base.fence_reference = galahad_screen_fence_reference;
+   glhd_screen->base.fence_signalled = galahad_screen_fence_signalled;
+   glhd_screen->base.fence_finish = galahad_screen_fence_finish;
+
+   glhd_screen->screen = screen;
+
+   return &glhd_screen->base;
+}