Name TIZEN_image_native_surface Name Strings EGL_TIZEN_image_native_surface Contributors Dongyeon Kim Zeeshan Anwar Minsu Han Inpyo Kang Contact Dongyeon Kim, Samsung Electronics (dy5.kim 'at' samsung.com) Zeeshan Anwar, Samsung Electronics (z.anwar 'at' samsung.com) Status Complete Version Version 3, August 13, 2014 Number EGL Extension #77 Dependencies EGL 1.2 is required. EGL_KHR_image_base is required. This extension is written against the wording of the EGL 1.2 Specification. Overview Tizen Buffer Manager (TBM) is a user space, generic memory management framework to create and share memory buffers between different system components. This extension enables using a Tizen Buffer Manager (TBM) surface object (struct tbm_surface_h) as an EGLImage source. New Types None. New Procedures and Functions None. New Tokens Accepted by the parameter of eglCreateImageKHR: EGL_NATIVE_SURFACE_TIZEN 0x32A1 Changes to Chapter 3 of the EGL 1.2 Specification (EGL Functions and Errors) Add to section 2.5.1 "EGLImage Specification" (as defined by the EGL_KHR_image_base specification), in the description of eglCreateImageKHR: "Values accepted for are listed in Table aaa, below. +---------------------------+------------------------------------+ | | Notes | +---------------------------+------------------------------------+ | EGL_NATIVE_SURFACE_TIZEN | Used for Tizen tbm_surface_h objects | +---------------------------+------------------------------------+ Table aaa. Legal values for eglCreateImageKHR parameter ... If is EGL_NATIVE_SURFACE_TIZEN, must be a valid display, must be EGL_NO_CONTEXT, must be a pointer to a valid tbm_surface_h object (cast into the type EGLClientBuffer), and attributes other than EGL_IMAGE_PRESERVED_KHR are ignored." Add to the list of error conditions for eglCreateImageKHR: "* If is EGL_NATIVE_SURFACE_TIZEN and is not a pointer to a valid tbm_surface_h, the error EGL_BAD_PARAMETER is generated. * If is EGL_NATIVE_SURFACE_TIZEN and is not EGL_NO_CONTEXT, the error EGL_BAD_CONTEXT is generated. * If is EGL_NATIVE_SURFACE_TIZEN and was created with properties (format, usage, dimensions, etc.) not supported by the EGL implementation, the error EGL_BAD_PARAMETER is generated." Issues 1. Should this extension define what combinations of tbm_surface_h properties implementations are required to support? RESOLVED: No. The requirements have evolved over time and will continue to change with future Tizen releases. The minimum requirements for a given Tizen version should be documented by that version. Revision History #3 (Zeeshan Anwar, August 13, 2014) - Changed tbm_surface to tbm_surface_h #2 (Zeeshan Anwar, July 23, 2014) - Changed extension name and target name - Assigned value to EGL_NATIVE_SURFACE_TIZEN #1 (Zeeshan Anwar, July 18, 2014) - Initial draft.