glGetString returns NULL on Satio

This topic contains 3 replies, has 1 voice, and was last updated by  Slion 7 years, 4 months ago.

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  • #30219

    Slion
    Member

    On Sony-Ericsson Satio glGetString returns NULL for GL_EXTENSIONS, GL_VENDOR and GL_VERSION. I have not tried GL_RENDERER. That’s especially annoying for the extensions.

    Do I need to initialize something before calling glGetString?

    #34155

    Slion
    Member

    Ok it works much better after OpenGL was initialized. Not sure what’s exactly needed though but fetching the strings after creation of the EGL display, context and surface works.

    However it seems GL_EXTENSIONS returns an empty string. Am I getting that right? No extensions are supported on Satio?

    #34156

    Slion
    Member

    Ok my bad one more time! I was getting that wrong. Satio does support a few extensions.

    In fact here are the GL strings for Satio:

    OpenGL Vendor:
    Imagination Technologies

    OpenGL Version:
    OpenGL ES 2.0

    OpenGL Renderer:
    PowerVR SGX 530

    OpenGL Extensions:
    GL_OES_rgb8_rgba8
    GL_OES_depth24
    GL_OES_vertex_half_float
    GL_OES_texture_float
    GL_OES_texture_half_float
    GL_OES_element_index_uint
    GL_OES_mapbuffer
    GL_OES_fragment_precision_high
    GL_OES_compressed_ETC1_RGB8_texture
    GL_OES_EGL_image
    GL_OES_required_internalformat
    GL_OES_depth_texture
    GL_OES_get_program_binary
    GL_OES_standard_derivatives
    GL_EXT_multi_draw_arrays
    GL_EXT_texture_format_BGRA8888
    GL_IMG_shader_binary
    GL_IMG_texture_compression_pvrtc
    GL_IMG_texture_stream2
    GL_IMG_texture_npot
    GL_IMG_texture_format_BGRA8888
    GL_IMG_read_format
    GL_IMG_program_binary

    #34157

    Slion
    Member

    I published some more GL strings there.

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