gallium: add interface and state tracker support for GL_AMD_pinned_memory

v2: add alignment restrictions to docs, fix indentation in headers

Reviewed-by: Christian König <[email protected]>

2 files changed, 9 insertions, 0 deletions

diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 7ce25af20c8..17850438dc8 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -575,6 +575,7 @@ enum pipe_cap {
    PIPE_CAP_VERTEXID_NOBASE = 112,
    PIPE_CAP_POLYGON_OFFSET_CLAMP = 113,
    PIPE_CAP_MULTISAMPLE_Z_RESOLVE = 114,
+   PIPE_CAP_RESOURCE_FROM_USER_MEMORY = 115,
 };
 
 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
diff --git a/src/gallium/include/pipe/p_screen.h b/src/gallium/include/pipe/p_screen.h
index cf958d26a05..ac885068aa3 100644
--- a/src/gallium/include/pipe/p_screen.h
+++ b/src/gallium/include/pipe/p_screen.h
@@ -164,6 +164,14 @@ struct pipe_screen {
 						  struct winsys_handle *handle);
 
    /**
+    * Create a resource from user memory. This maps the user memory into
+    * the device address space.
+    */
+   struct pipe_resource * (*resource_from_user_memory)(struct pipe_screen *,
+                                                       const struct pipe_resource *t,
+                                                       void *user_memory);
+
+   /**
     * Get a winsys_handle from a texture. Some platforms/winsys requires
     * that the texture is created with a special usage flag like
     * DISPLAYTARGET or PRIMARY.