[Mesa-users] Is there a BUG in glPolygonMode()?
Johann Klammer
klammerj at a1.net
Fri Mar 23 09:21:04 PDT 2012
Good evening,
I get a black picture when rendering fragments with
glPolygonMode(GL_FRONT_AND_BACK,GL_LINE). Am I missing something, or is
it a bug?
There is a testcase here:
http://members.aon.at/~aklamme4/scratch/brk_line.c
And 3 screenshots showing the effects of GL_FILL,GL_LINE,and GL_POINT
respectively:
http://members.aon.at/~aklamme4/scratch/0.png
http://members.aon.at/~aklamme4/scratch/1.png
http://members.aon.at/~aklamme4/scratch/2.png
Does anyone see similar effects?
glxinfo:
name of display: :0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: SGI
server glx version string: 1.4
server glx extensions:
GLX_ARB_multisample, GLX_EXT_import_context,
GLX_EXT_texture_from_pixmap,
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_copy_sub_buffer,
GLX_OML_swap_method, GLX_SGI_make_current_read, GLX_SGI_swap_control,
GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGIX_visual_select_group, GLX_INTEL_swap_event
client glx vendor string: Mesa Project and SGI
client glx version string: 1.4
client glx extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_EXT_framebuffer_sRGB,
GLX_MESA_copy_sub_buffer, GLX_MESA_multithread_makecurrent,
GLX_MESA_swap_control, GLX_OML_swap_method, GLX_OML_sync_control,
GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGI_video_sync,
GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGIX_visual_select_group, GLX_EXT_texture_from_pixmap,
GLX_INTEL_swap_event
GLX version: 1.4
GLX extensions:
GLX_ARB_get_proc_address, GLX_ARB_multisample, GLX_EXT_import_context,
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_MESA_copy_sub_buffer,
GLX_MESA_multithread_makecurrent, GLX_MESA_swap_control,
GLX_OML_swap_method, GLX_OML_sync_control, GLX_SGI_make_current_read,
GLX_SGI_swap_control, GLX_SGI_video_sync, GLX_SGIS_multisample,
GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group,
GLX_EXT_texture_from_pixmap
OpenGL vendor string: nouveau
OpenGL renderer string: Gallium 0.4 on NV34
OpenGL version string: 1.5 Mesa 7.11.2
OpenGL extensions:
GL_ARB_multisample, GL_EXT_abgr, GL_EXT_bgra, GL_EXT_blend_color,
GL_EXT_blend_logic_op, GL_EXT_blend_minmax, GL_EXT_blend_subtract,
GL_EXT_copy_texture, GL_EXT_polygon_offset, GL_EXT_subtexture,
GL_EXT_texture_object, GL_EXT_vertex_array,
GL_EXT_compiled_vertex_array,
GL_EXT_texture, GL_EXT_texture3D, GL_IBM_rasterpos_clip,
GL_ARB_point_parameters, GL_EXT_draw_range_elements,
GL_EXT_packed_pixels,
GL_EXT_point_parameters, GL_EXT_rescale_normal,
GL_EXT_separate_specular_color, GL_EXT_texture_edge_clamp,
GL_SGIS_generate_mipmap, GL_SGIS_texture_border_clamp,
GL_SGIS_texture_edge_clamp, GL_SGIS_texture_lod, GL_ARB_multitexture,
GL_IBM_multimode_draw_arrays, GL_IBM_texture_mirrored_repeat,
GL_ARB_texture_cube_map, GL_ARB_texture_env_add,
GL_ARB_transpose_matrix,
GL_EXT_blend_func_separate, GL_EXT_fog_coord, GL_EXT_multi_draw_arrays,
GL_EXT_secondary_color, GL_EXT_texture_env_add,
GL_EXT_texture_filter_anisotropic, GL_EXT_texture_lod_bias,
GL_INGR_blend_func_separate, GL_NV_blend_square,
GL_NV_light_max_exponent,
GL_NV_texgen_reflection, GL_NV_texture_env_combine4,
GL_SUN_multi_draw_arrays, GL_ARB_texture_border_clamp,
GL_ARB_texture_compression, GL_EXT_framebuffer_object,
GL_EXT_texture_env_dot3, GL_MESA_window_pos,
GL_NV_packed_depth_stencil,
GL_NV_texture_rectangle, GL_ARB_depth_texture, GL_ARB_occlusion_query,
GL_ARB_shadow, GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar,
GL_ARB_texture_env_dot3, GL_ARB_texture_mirrored_repeat,
GL_ARB_window_pos, GL_EXT_stencil_two_side, GL_EXT_texture_cube_map,
GL_APPLE_packed_pixels, GL_APPLE_vertex_array_object,
GL_ARB_draw_buffers,
GL_ARB_fragment_program, GL_ARB_fragment_shader, GL_ARB_shader_objects,
GL_ARB_vertex_program, GL_ARB_vertex_shader, GL_ATI_draw_buffers,
GL_ATI_texture_env_combine3, GL_EXT_shadow_funcs, GL_EXT_stencil_wrap,
GL_MESA_pack_invert, GL_ARB_fragment_program_shadow,
GL_ARB_half_float_pixel, GL_ARB_occlusion_query2, GL_ARB_point_sprite,
GL_ARB_shading_language_100, GL_ARB_sync, GL_ARB_vertex_buffer_object,
GL_OES_read_format, GL_ARB_color_buffer_float,
GL_ARB_pixel_buffer_object,
GL_ARB_texture_rectangle, GL_EXT_pixel_buffer_object,
GL_EXT_texture_rectangle, GL_EXT_texture_sRGB,
GL_ARB_framebuffer_object,
GL_EXT_framebuffer_blit, GL_EXT_framebuffer_multisample,
GL_EXT_packed_depth_stencil, GL_ARB_vertex_array_object,
GL_ATI_separate_stencil, GL_EXT_gpu_program_parameters,
GL_EXT_texture_env_combine, GL_EXT_texture_sRGB_decode,
GL_OES_EGL_image,
GL_ARB_copy_buffer, GL_ARB_half_float_vertex, GL_ARB_map_buffer_range,
GL_ARB_texture_rg, GL_ARB_texture_swizzle, GL_ARB_vertex_array_bgra,
GL_EXT_separate_shader_objects, GL_EXT_texture_swizzle,
GL_EXT_vertex_array_bgra, GL_ARB_draw_elements_base_vertex,
GL_ARB_explicit_attrib_location, GL_ARB_fragment_coord_conventions,
GL_ARB_provoking_vertex, GL_ARB_sampler_objects,
GL_EXT_provoking_vertex,
GL_ARB_robustness
visual x bf lv rg d st colorbuffer ax dp st accumbuffer ms cav
id dep cl sp sz l ci b ro r g b a bf th cl r g b a ns b eat
----------------------------------------------------------------------
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0x172 24 dc 0 32 0 r . . 8 8 8 8 0 24 0 0 0 0 0 0 0 None
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0x174 24 dc 0 32 0 r y . 8 8 8 8 0 24 0 0 0 0 0 0 0 None
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0x177 24 dc 0 32 0 r y . 8 8 8 8 0 24 0 16 16 16 16 0 0 Slow
0x178 24 dc 0 32 0 r . . 8 8 8 8 0 24 8 0 0 0 0 0 0 None
0x179 24 dc 0 32 0 r . . 8 8 8 8 0 24 8 16 16 16 16 0 0 Slow
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0x17b 24 dc 0 32 0 r y . 8 8 8 8 0 24 8 0 0 0 0 0 0 None
0x17c 24 dc 0 32 0 r y . 8 8 8 8 0 24 8 16 16 16 16 0 0 Slow
0x17d 24 dc 0 24 0 r . . 8 8 8 0 0 0 0 0 0 0 0 0 0 None
0x17e 24 dc 0 24 0 r . . 8 8 8 0 0 0 0 16 16 16 0 0 0 Slow
0x17f 24 dc 0 24 0 r y . 8 8 8 0 0 0 0 0 0 0 0 0 0 None
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0x190 24 dc 0 24 0 r . . 8 8 8 0 0 24 8 16 16 16 0 0 0 Slow
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0x193 24 dc 0 24 0 r y . 8 8 8 0 0 24 8 0 0 0 0 0 0 None
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0xa7 32 tc 0 32 0 r y . 8 8 8 8 0 24 8 0 0 0 0 0 0 None
Regards,
JK
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