egl/dri: Add error info needed for EGL_EXT_image_dma_buf_import extension

Update the DRI image interface error codes to reflect the needs of the
EGL_EXT_image_dma_buf_import extension. This means updating the existing error
code documentation and adding a new __DRI_IMAGE_ERROR_BAD_ACCESS error code
so that drivers can correctly reject unsupported pitches and offsets. Hook
the new error code up in EGL to return EGL_BAD_ACCESS.

Cc: <mesa-stable@lists.freedesktop.org>
Signed-off-by: Frank Binns <frank.binns@imgtec.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

include/GL/internal/dri_interface.h

 };
 
 /**
- * \name Reasons that __DRIimageExtensionRec::createImageFromTexture might fail
+ * \name Reasons that __DRIimageExtensionRec::createImageFromTexture or
+ * __DRIimageExtensionRec::createImageFromDmaBufs might fail
  */
 /*@{*/
 /** Success! */
 /** Memory allocation failure */
 #define __DRI_IMAGE_ERROR_BAD_ALLOC     1
 
-/** Client requested an invalid attribute for a texture object  */
+/** Client requested an invalid attribute */
 #define __DRI_IMAGE_ERROR_BAD_MATCH     2
 
 /** Client requested an invalid texture object */
 #define __DRI_IMAGE_ERROR_BAD_PARAMETER 3
+
+/** Client requested an invalid pitch and/or offset */
+#define __DRI_IMAGE_ERROR_BAD_ACCESS    4
 /*@}*/
 
 /**

src/egl/drivers/dri2/egl_dri2.c

       egl_error = EGL_BAD_PARAMETER;
       break;
 
+   case __DRI_IMAGE_ERROR_BAD_ACCESS:
+      egl_error = EGL_BAD_ACCESS;
+      break;
+
    default:
       assert(0);
       egl_error = EGL_BAD_MATCH;