setup-opengl

This action sets up an SWR based OpenGL environment for use in GitHub Actions workflow by:

• Loading a custom build of Mesa with SWR rasterizer
• Setting LD_LIBRARY_PATH to include the Mesa libraries
• Setting GALLIUM_DRIVER to swr
• Installing xvfb

This only works on ubuntu-bionic runtimes

Usage

The setup-opengl is straight forward to use, all you have to do is make sure you run on ubuntu-bionic (currently latest) and add uses: openrndr/setup-opengl@v1.1 to your workflow. After you can run programs that use OpenGL through GLX.

Basic Example

on: push

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
      - uses: openrndr/setup-opengl@v1.1
      - run: xvfb-run glxinfo

OpenGL support details

Support is based on a build of Mesa 18.2.3 with SWR enabled built on Ubuntu 18.04 using:

meson --buildtype=release -Degl=false -Dgallium-vdpau=false -Dgallium-xvmc=false -Dgallium-omx=disabled -Dgallium-drivers=swrast,swr -Dplatforms=x11 -Dglx=gallium-xlib -Dopengl=true  -Dvulkan-drivers= -Dtexture-float=true -Dosmesa=gallium -Ddri-drivers= build

Running glxinfo with this build of Mesa should print:

direct rendering: Yes
server glx vendor string: Brian Paul
server glx version string: 1.4 Mesa 18.2.8
server glx extensions:
    GLX_ARB_create_context, GLX_ARB_create_context_profile, 
    GLX_ARB_get_proc_address, GLX_EXT_create_context_es2_profile, 
    GLX_EXT_create_context_es_profile, GLX_EXT_texture_from_pixmap, 
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_copy_sub_buffer, 
    GLX_MESA_pixmap_colormap, GLX_MESA_release_buffers, GLX_SGIX_fbconfig, 
    GLX_SGIX_pbuffer
client glx vendor string: Brian Paul
client glx version string: 1.4 Mesa 18.2.8
client glx extensions:
    GLX_ARB_create_context, GLX_ARB_create_context_profile, 
    GLX_ARB_get_proc_address, GLX_EXT_create_context_es2_profile, 
    GLX_EXT_create_context_es_profile, GLX_EXT_texture_from_pixmap, 
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_copy_sub_buffer, 
    GLX_MESA_pixmap_colormap, GLX_MESA_release_buffers, GLX_SGIX_fbconfig, 
    GLX_SGIX_pbuffer
GLX version: 1.4
GLX extensions:
    GLX_ARB_create_context, GLX_ARB_create_context_profile, 
    GLX_ARB_get_proc_address, GLX_EXT_create_context_es2_profile, 
    GLX_EXT_create_context_es_profile, GLX_EXT_texture_from_pixmap, 
    GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_copy_sub_buffer, 
    GLX_MESA_pixmap_colormap, GLX_MESA_release_buffers, GLX_SGIX_fbconfig, 
    GLX_SGIX_pbuffer
OpenGL vendor string: Intel Corporation
OpenGL renderer string: SWR (LLVM 6.0, 256 bits)
OpenGL core profile version string: 3.3 (Core Profile) Mesa 18.2.8
OpenGL core profile shading language version string: 3.30
OpenGL core profile context flags: (none)
OpenGL core profile profile mask: core profile
OpenGL core profile extensions:
    GL_AMD_conservative_depth, GL_AMD_draw_buffers_blend, 
    GL_AMD_seamless_cubemap_per_texture, GL_AMD_shader_trinary_minmax, 
    GL_ANGLE_texture_compression_dxt3, GL_ANGLE_texture_compression_dxt5, 
    GL_ARB_ES2_compatibility, GL_ARB_ES3_compatibility, 
    GL_ARB_arrays_of_arrays, GL_ARB_base_instance, GL_ARB_blend_func_extended, 
    GL_ARB_buffer_storage, GL_ARB_clear_buffer_object, GL_ARB_clear_texture, 
    GL_ARB_clip_control, GL_ARB_compressed_texture_pixel_storage, 
    GL_ARB_conditional_render_inverted, GL_ARB_conservative_depth, 
    GL_ARB_copy_buffer, GL_ARB_cull_distance, GL_ARB_debug_output, 
    GL_ARB_depth_buffer_float, GL_ARB_depth_clamp, GL_ARB_direct_state_access, 
    GL_ARB_draw_buffers, GL_ARB_draw_buffers_blend, 
    GL_ARB_draw_elements_base_vertex, GL_ARB_draw_indirect, 
    GL_ARB_draw_instanced, GL_ARB_explicit_attrib_location, 
    GL_ARB_explicit_uniform_location, GL_ARB_fragment_coord_conventions, 
    GL_ARB_fragment_shader, GL_ARB_framebuffer_object, 
    GL_ARB_framebuffer_sRGB, GL_ARB_get_program_binary, 
    GL_ARB_get_texture_sub_image, GL_ARB_gpu_shader_fp64, 
    GL_ARB_half_float_pixel, GL_ARB_half_float_vertex, 
    GL_ARB_instanced_arrays, GL_ARB_internalformat_query, 
    GL_ARB_internalformat_query2, GL_ARB_invalidate_subdata, 
    GL_ARB_map_buffer_alignment, GL_ARB_map_buffer_range, GL_ARB_multi_bind, 
    GL_ARB_multi_draw_indirect, GL_ARB_occlusion_query2, 
    GL_ARB_pipeline_statistics_query, GL_ARB_pixel_buffer_object, 
    GL_ARB_point_sprite, GL_ARB_polygon_offset_clamp, 
    GL_ARB_program_interface_query, GL_ARB_provoking_vertex, 
    GL_ARB_robustness, GL_ARB_sampler_objects, GL_ARB_seamless_cube_map, 
    GL_ARB_seamless_cubemap_per_texture, GL_ARB_separate_shader_objects, 
    GL_ARB_shader_bit_encoding, GL_ARB_shader_objects, 
    GL_ARB_shader_subroutine, GL_ARB_shader_texture_lod, 
    GL_ARB_shading_language_420pack, GL_ARB_shading_language_packing, 
    GL_ARB_stencil_texturing, GL_ARB_sync, GL_ARB_texture_buffer_object, 
    GL_ARB_texture_buffer_object_rgb32, GL_ARB_texture_compression_rgtc, 
    GL_ARB_texture_cube_map_array, GL_ARB_texture_float, 
    GL_ARB_texture_mirror_clamp_to_edge, GL_ARB_texture_multisample, 
    GL_ARB_texture_non_power_of_two, GL_ARB_texture_query_levels, 
    GL_ARB_texture_rectangle, GL_ARB_texture_rg, GL_ARB_texture_rgb10_a2ui, 
    GL_ARB_texture_stencil8, GL_ARB_texture_storage, 
    GL_ARB_texture_storage_multisample, GL_ARB_texture_swizzle, 
    GL_ARB_timer_query, GL_ARB_transform_feedback3, 
    GL_ARB_uniform_buffer_object, GL_ARB_vertex_array_bgra, 
    GL_ARB_vertex_array_object, GL_ARB_vertex_attrib_64bit, 
    GL_ARB_vertex_attrib_binding, GL_ARB_vertex_shader, 
    GL_ARB_vertex_type_10f_11f_11f_rev, GL_ARB_vertex_type_2_10_10_10_rev, 
    GL_ATI_blend_equation_separate, GL_ATI_texture_float, 
    GL_ATI_texture_mirror_once, GL_EXT_abgr, GL_EXT_blend_equation_separate, 
    GL_EXT_depth_bounds_test, GL_EXT_draw_buffers2, GL_EXT_draw_instanced, 
    GL_EXT_framebuffer_blit, GL_EXT_framebuffer_multisample, 
    GL_EXT_framebuffer_multisample_blit_scaled, GL_EXT_framebuffer_sRGB, 
    GL_EXT_packed_depth_stencil, GL_EXT_packed_float, 
    GL_EXT_pixel_buffer_object, GL_EXT_polygon_offset_clamp, 
    GL_EXT_provoking_vertex, GL_EXT_shader_integer_mix, GL_EXT_texture_array, 
    GL_EXT_texture_compression_dxt1, GL_EXT_texture_compression_rgtc, 
    GL_EXT_texture_compression_s3tc, GL_EXT_texture_integer, 
    GL_EXT_texture_mirror_clamp, GL_EXT_texture_sRGB, 
    GL_EXT_texture_sRGB_decode, GL_EXT_texture_shared_exponent, 
    GL_EXT_texture_snorm, GL_EXT_texture_swizzle, GL_EXT_timer_query, 
    GL_EXT_transform_feedback, GL_EXT_vertex_array_bgra, 
    GL_IBM_multimode_draw_arrays, GL_KHR_context_flush_control, GL_KHR_debug, 
    GL_KHR_no_error, GL_KHR_texture_compression_astc_ldr, GL_MESA_pack_invert, 
    GL_MESA_shader_integer_functions, GL_MESA_texture_signed_rgba, 
    GL_MESA_ycbcr_texture, GL_NV_conditional_render, GL_NV_depth_clamp, 
    GL_NV_packed_depth_stencil, GL_OES_EGL_image, GL_S3_s3tc

OpenGL version string: 3.1 Mesa 18.2.8
OpenGL shading language version string: 1.40
OpenGL context flags: (none)
OpenGL extensions:
    GL_AMD_conservative_depth, GL_AMD_draw_buffers_blend, 
    GL_AMD_seamless_cubemap_per_texture, GL_AMD_shader_trinary_minmax, 
    GL_ANGLE_texture_compression_dxt3, GL_ANGLE_texture_compression_dxt5, 
    GL_APPLE_packed_pixels, GL_ARB_ES2_compatibility, 
    GL_ARB_ES3_compatibility, GL_ARB_arrays_of_arrays, GL_ARB_base_instance, 
    GL_ARB_blend_func_extended, GL_ARB_buffer_storage, 
    GL_ARB_clear_buffer_object, GL_ARB_clear_texture, GL_ARB_clip_control, 
    GL_ARB_color_buffer_float, GL_ARB_compatibility, 
    GL_ARB_compressed_texture_pixel_storage, 
    GL_ARB_conditional_render_inverted, GL_ARB_conservative_depth, 
    GL_ARB_copy_buffer, GL_ARB_cull_distance, GL_ARB_debug_output, 
    GL_ARB_depth_buffer_float, GL_ARB_depth_clamp, GL_ARB_depth_texture, 
    GL_ARB_draw_buffers, GL_ARB_draw_buffers_blend, 
    GL_ARB_draw_elements_base_vertex, GL_ARB_draw_indirect, 
    GL_ARB_draw_instanced, GL_ARB_explicit_attrib_location, 
    GL_ARB_explicit_uniform_location, GL_ARB_fragment_coord_conventions, 
    GL_ARB_fragment_program, GL_ARB_fragment_program_shadow, 
    GL_ARB_fragment_shader, GL_ARB_framebuffer_object, 
    GL_ARB_framebuffer_sRGB, GL_ARB_get_program_binary, 
    GL_ARB_get_texture_sub_image, GL_ARB_half_float_pixel, 
    GL_ARB_half_float_vertex, GL_ARB_instanced_arrays, 
    GL_ARB_internalformat_query, GL_ARB_internalformat_query2, 
    GL_ARB_invalidate_subdata, GL_ARB_map_buffer_alignment, 
    GL_ARB_map_buffer_range, GL_ARB_multi_bind, GL_ARB_multi_draw_indirect, 
    GL_ARB_multisample, GL_ARB_multitexture, GL_ARB_occlusion_query, 
    GL_ARB_occlusion_query2, GL_ARB_pipeline_statistics_query, 
    GL_ARB_pixel_buffer_object, GL_ARB_point_parameters, GL_ARB_point_sprite, 
    GL_ARB_polygon_offset_clamp, GL_ARB_program_interface_query, 
    GL_ARB_provoking_vertex, GL_ARB_robustness, GL_ARB_sampler_objects, 
    GL_ARB_seamless_cube_map, GL_ARB_seamless_cubemap_per_texture, 
    GL_ARB_separate_shader_objects, GL_ARB_shader_bit_encoding, 
    GL_ARB_shader_objects, GL_ARB_shader_subroutine, 
    GL_ARB_shader_texture_lod, GL_ARB_shading_language_100, 
    GL_ARB_shading_language_420pack, GL_ARB_shading_language_packing, 
    GL_ARB_shadow, GL_ARB_stencil_texturing, GL_ARB_sync, 
    GL_ARB_texture_border_clamp, GL_ARB_texture_buffer_object, 
    GL_ARB_texture_buffer_object_rgb32, GL_ARB_texture_compression, 
    GL_ARB_texture_compression_rgtc, GL_ARB_texture_cube_map, 
    GL_ARB_texture_cube_map_array, GL_ARB_texture_env_add, 
    GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar, 
    GL_ARB_texture_env_dot3, GL_ARB_texture_float, 
    GL_ARB_texture_mirror_clamp_to_edge, GL_ARB_texture_mirrored_repeat, 
    GL_ARB_texture_multisample, GL_ARB_texture_non_power_of_two, 
    GL_ARB_texture_query_levels, GL_ARB_texture_rectangle, GL_ARB_texture_rg, 
    GL_ARB_texture_rgb10_a2ui, GL_ARB_texture_stencil8, 
    GL_ARB_texture_storage, GL_ARB_texture_storage_multisample, 
    GL_ARB_texture_swizzle, GL_ARB_timer_query, GL_ARB_transform_feedback3, 
    GL_ARB_transpose_matrix, GL_ARB_uniform_buffer_object, 
    GL_ARB_vertex_array_bgra, GL_ARB_vertex_array_object, 
    GL_ARB_vertex_attrib_binding, GL_ARB_vertex_buffer_object, 
    GL_ARB_vertex_program, GL_ARB_vertex_shader, 
    GL_ARB_vertex_type_10f_11f_11f_rev, GL_ARB_vertex_type_2_10_10_10_rev, 
    GL_ARB_window_pos, GL_ATI_blend_equation_separate, GL_ATI_draw_buffers, 
    GL_ATI_fragment_shader, GL_ATI_separate_stencil, 
    GL_ATI_texture_compression_3dc, GL_ATI_texture_env_combine3, 
    GL_ATI_texture_float, GL_ATI_texture_mirror_once, GL_EXT_abgr, 
    GL_EXT_bgra, GL_EXT_blend_color, GL_EXT_blend_equation_separate, 
    GL_EXT_blend_func_separate, GL_EXT_blend_minmax, GL_EXT_blend_subtract, 
    GL_EXT_compiled_vertex_array, GL_EXT_copy_texture, 
    GL_EXT_depth_bounds_test, GL_EXT_draw_buffers2, GL_EXT_draw_instanced, 
    GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_framebuffer_blit, 
    GL_EXT_framebuffer_multisample, GL_EXT_framebuffer_multisample_blit_scaled, 
    GL_EXT_framebuffer_object, GL_EXT_framebuffer_sRGB, 
    GL_EXT_gpu_program_parameters, GL_EXT_multi_draw_arrays, 
    GL_EXT_packed_depth_stencil, GL_EXT_packed_float, GL_EXT_packed_pixels, 
    GL_EXT_pixel_buffer_object, GL_EXT_point_parameters, 
    GL_EXT_polygon_offset_clamp, GL_EXT_provoking_vertex, 
    GL_EXT_rescale_normal, GL_EXT_secondary_color, 
    GL_EXT_separate_specular_color, GL_EXT_shader_integer_mix, 
    GL_EXT_shadow_funcs, GL_EXT_stencil_two_side, GL_EXT_stencil_wrap, 
    GL_EXT_subtexture, GL_EXT_texture, GL_EXT_texture3D, 
    GL_EXT_texture_array, GL_EXT_texture_compression_dxt1, 
    GL_EXT_texture_compression_latc, GL_EXT_texture_compression_rgtc, 
    GL_EXT_texture_compression_s3tc, GL_EXT_texture_cube_map, 
    GL_EXT_texture_edge_clamp, GL_EXT_texture_env_add, 
    GL_EXT_texture_env_combine, GL_EXT_texture_env_dot3, 
    GL_EXT_texture_integer, GL_EXT_texture_lod_bias, 
    GL_EXT_texture_mirror_clamp, GL_EXT_texture_object, 
    GL_EXT_texture_rectangle, GL_EXT_texture_sRGB, GL_EXT_texture_sRGB_decode, 
    GL_EXT_texture_shared_exponent, GL_EXT_texture_snorm, 
    GL_EXT_texture_swizzle, GL_EXT_timer_query, GL_EXT_transform_feedback, 
    GL_EXT_vertex_array, GL_EXT_vertex_array_bgra, 
    GL_IBM_multimode_draw_arrays, GL_IBM_rasterpos_clip, 
    GL_IBM_texture_mirrored_repeat, GL_INGR_blend_func_separate, 
    GL_KHR_context_flush_control, GL_KHR_debug, GL_KHR_no_error, 
    GL_KHR_texture_compression_astc_ldr, GL_MESA_pack_invert, 
    GL_MESA_shader_integer_functions, GL_MESA_texture_signed_rgba, 
    GL_MESA_window_pos, GL_MESA_ycbcr_texture, GL_NV_blend_square, 
    GL_NV_conditional_render, GL_NV_depth_clamp, GL_NV_fog_distance, 
    GL_NV_light_max_exponent, GL_NV_packed_depth_stencil, 
    GL_NV_primitive_restart, GL_NV_texgen_reflection, 
    GL_NV_texture_env_combine4, GL_NV_texture_rectangle, GL_OES_EGL_image, 
    GL_OES_read_format, GL_S3_s3tc, GL_SGIS_generate_mipmap, 
    GL_SGIS_texture_border_clamp, GL_SGIS_texture_edge_clamp, 
    GL_SGIS_texture_lod, GL_SUN_multi_draw_arrays

OpenGL ES profile version string: OpenGL ES 3.0 Mesa 18.2.8
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
OpenGL ES profile extensions:
    GL_ANGLE_texture_compression_dxt3, GL_ANGLE_texture_compression_dxt5, 
    GL_APPLE_texture_max_level, GL_EXT_base_instance, 
    GL_EXT_blend_func_extended, GL_EXT_blend_minmax, 
    GL_EXT_clip_cull_distance, GL_EXT_color_buffer_float, 
    GL_EXT_compressed_ETC1_RGB8_sub_texture, GL_EXT_discard_framebuffer, 
    GL_EXT_draw_buffers, GL_EXT_draw_buffers_indexed, 
    GL_EXT_draw_elements_base_vertex, GL_EXT_frag_depth, 
    GL_EXT_map_buffer_range, GL_EXT_multi_draw_arrays, 
    GL_EXT_occlusion_query_boolean, GL_EXT_polygon_offset_clamp, 
    GL_EXT_read_format_bgra, GL_EXT_separate_shader_objects, 
    GL_EXT_shader_integer_mix, GL_EXT_texture_border_clamp, 
    GL_EXT_texture_compression_dxt1, GL_EXT_texture_format_BGRA8888, 
    GL_EXT_texture_rg, GL_EXT_texture_sRGB_decode, 
    GL_EXT_texture_type_2_10_10_10_REV, GL_EXT_unpack_subimage, 
    GL_KHR_context_flush_control, GL_KHR_debug, GL_KHR_no_error, 
    GL_KHR_texture_compression_astc_ldr, GL_MESA_shader_integer_functions, 
    GL_NV_draw_buffers, GL_NV_fbo_color_attachments, GL_NV_read_buffer, 
    GL_NV_read_depth, GL_NV_read_depth_stencil, GL_NV_read_stencil, 
    GL_OES_EGL_image, GL_OES_EGL_image_external, 
    GL_OES_EGL_image_external_essl3, GL_OES_EGL_sync, 
    GL_OES_compressed_ETC1_RGB8_texture, GL_OES_depth24, GL_OES_depth_texture, 
    GL_OES_depth_texture_cube_map, GL_OES_draw_buffers_indexed, 
    GL_OES_draw_elements_base_vertex, GL_OES_element_index_uint, 
    GL_OES_fbo_render_mipmap, GL_OES_get_program_binary, GL_OES_mapbuffer, 
    GL_OES_packed_depth_stencil, GL_OES_required_internalformat, 
    GL_OES_rgb8_rgba8, GL_OES_standard_derivatives, GL_OES_stencil8, 
    GL_OES_surfaceless_context, GL_OES_texture_3D, 
    GL_OES_texture_border_clamp, GL_OES_texture_float, 
    GL_OES_texture_float_linear, GL_OES_texture_half_float, 
    GL_OES_texture_half_float_linear, GL_OES_texture_npot, 
    GL_OES_texture_stencil8, GL_OES_vertex_array_object, 
    GL_OES_vertex_half_float

3 GLX Visuals
    visual  x   bf lv rg d st  colorbuffer  sr ax dp st accumbuffer  ms  cav
  id dep cl sp  sz l  ci b ro  r  g  b  a F gb bf th cl  r  g  b  a ns b eat
----------------------------------------------------------------------------
0x021 16 tc  0  16  0 r  y .   5  6  5  0 .  .  0 24  8 16 16 16 16  0 0 None
0x022 16 dc  0  16  0 r  y .   5  6  5  0 .  .  0 24  8 16 16 16 16  0 0 None
0x041 32 tc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8 16 16 16  0  0 0 None

3 GLXFBConfigs:
    visual  x   bf lv rg d st  colorbuffer  sr ax dp st accumbuffer  ms  cav
  id dep cl sp  sz l  ci b ro  r  g  b  a F gb bf th cl  r  g  b  a ns b eat
----------------------------------------------------------------------------
0x021 16 tc  0  16  0 r  y .   5  6  5  0 .  .  0 24  8 16 16 16 16  0 0 None
0x022 16 dc  0  16  0 r  y .   5  6  5  0 .  .  0 24  8 16 16 16 16  0 0 None
0x041 32 tc  0  32  0 r  y .   8  8  8  8 .  .  0 24  8 16 16 16 16  0 0 None 

License

The scripts and documentation in this project are released under the MIT license.

Current Status

This action is no longer in active development. #5 (comment)