OpenGL extensions available on different Android devices [closed]

I'm in the process of writing an OpenGL ES powered framework for my next Android game(s). Currently I'm supporting three different techniques of drawing sprites:

the basic way: using vertex arrays (slow)
using vertex-buffer-objects (VBOs) (faster)
using the draw_texture extension (fastest, but only for basic sprites, i.e. no transforming)

Vertex arrays are supported in OpenGL ES 1.0 and thus in every Android-device. I'm guessing most (if not all) of the current devices also support VBOs and draw_texture.

Instead of guessing, I'd like to know the extensions supported by different devices. If majority of devices support VBOs, I could simplify my code and focus only on VBOs + draw_texture.

It'd be helpful to know what different devices support, so if you have an Android-device, do report the extensions list please. :)

String extensions = gl.glGetString(GL10.GL_EXTENSIONS);

I've got a HTC Hero, so I can share those extensions next.

Solution 1:

OpenGL ES extensions on HTC G1 (Android 1.6):

GL_ARB_texture_env_combine
GL_ARB_texture_env_crossbar
GL_ARB_texture_env_dot3
GL_ARB_texture_mirrored_repeat
GL_ARB_vertex_buffer_object
GL_ATI_extended_texture_coordinate_data_formats
GL_ATI_imageon_misc
GL_ATI_texture_compression_atitc
GL_EXT_blend_equation_separate
GL_EXT_blend_func_separate
GL_EXT_blend_minmax
GL_EXT_blend_subtract
GL_EXT_stencil_wrap
GL_OES_byte_coordinates
GL_OES_compressed_paletted_texture
GL_OES_draw_texture
GL_OES_fixed_point
GL_OES_matrix_palette
GL_OES_point_size_array
GL_OES_point_sprite
GL_OES_read_format
GL_OES_single_precision
GL_OES_vertex_buffer_object
GL_QUALCOMM_vertex_buffer_object
GL_QUALCOMM_direct_texture

OpenGL ES version on HTC G1 (Android 1.6):

OpenGL ES 1.0-CM

I'm including the version as retrieved by:
gl.glGetString(GL10.GL_VERSION)

It's pretty interesting in that it doesn't follow the specification. The profile is supposed to be before the number. It is also needed to determine capabilities. For example, the Droid doesn't report VBO support in its extension list. It does report an OpenGL ES version of 1.1, however. That means it does support VBOs, because VBOs were made mandatory in the 1.1 version.

Solution 2:

Here's a HTC Evo 4G running Android 2.1-update1 (Thanks Google IO):

GL_VERSION:

OpenGL ES-CM 1.1

GL_EXTENSIONS:

GL_AMD_compressed_3DC_texture
GL_AMD_compressed_ATC_texture
GL_ARB_texture_env_combine
GL_ARB_texture_env_dot3
GL_ARB_texture_mirrored_repeat
GL_ARB_vertex_buffer_object
GL_ATI_compressed_texture_atitc
GL_ATI_texture_compression_atitc
GL_EXT_blend_equation_separate
GL_EXT_blend_func_separate
GL_EXT_blend_minmax
GL_EXT_blend_subtract
GL_EXT_stencil_wrap
GL_OES_EGL_image
GL_OES_blend_equation_separate
GL_OES_blend_func_separate
GL_OES_blend_subtract
GL_OES_compressed_ETC1_RGB8_texture
GL_OES_compressed_paletted_texture
GL_OES_draw_texture
GL_OES_extended_matrix_palette
GL_OES_framebuffer_object
GL_OES_matrix_palette
GL_OES_point_size_array
GL_OES_point_sprite
GL_OES_read_format
GL_OES_stencil_wrap
GL_OES_texture_cube_map
GL_OES_texture_env_crossbar
GL_OES_texture_mirrored_repeat

GL_RENDERER:

Adreno

GL_VENDOR:

Qualcomm

GL_ALIASED_POINT_SIZE_RANGE:

1, 128

GL_SMOOTH_POINT_SIZE_RANGE:

1, 128

I thought performance would duplicate the Nexus one. It has the same renderer/processor after all. The screen is TFT instead of OLED, but the same resolution. One of my games that takes 16-18ms per frame on the N1 takes 33-34ms on this, however. I haven't looked into why yet. The number looks suspiciously like it would if the screen only ran at 30Hz instead of 60Hz. I haven't confirmed that yet, though.

Solution 3:

OpenGL ES extensions on Nexus One (Android 2.1):

GL_AMD_compressed_3DC_texture
GL_AMD_compressed_ATC_texture
GL_ARB_texture_env_combine
GL_ARB_texture_env_dot3
GL_ARB_texture_mirrored_repeat
GL_ARB_vertex_buffer_object
GL_ATI_compressed_texture_atitc
GL_ATI_texture_compression_atitc
GL_EXT_blend_equation_separate
GL_EXT_blend_func_separate
GL_EXT_blend_minmax
GL_EXT_blend_subtract
GL_EXT_stencil_wrap
GL_OES_EGL_image
GL_OES_blend_equation_separate
GL_OES_blend_func_separate
GL_OES_blend_subtract
GL_OES_compressed_ETC1_RGB8_texture
GL_OES_compressed_paletted_texture
GL_OES_draw_texture
GL_OES_extended_matrix_palette
GL_OES_framebuffer_object
GL_OES_matrix_palette
GL_OES_point_size_array
GL_OES_point_sprite
GL_OES_read_format
GL_OES_stencil_wrap
GL_OES_texture_cube_map
GL_OES_texture_env_crossbar
GL_OES_texture_mirrored_repeat

Solution 4:

OpenGL ES info for HTC Desire (AU)