[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
----------------------------------------------------------------------
0x21 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x22 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x138 24 tc  0 32  0 r  .  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
0x139 24 tc  0 32  0 r  .  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
0x13a 24 tc  0 32  0 r  y  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
0x13b 24 tc  0 32  0 r  y  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
0x13c 24 tc  0 32  0 r  y  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
0x13d 24 tc  0 32  0 r  y  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
0x13e 24 tc  0 32  0 r  .  .  8  8  8  8  0 16  0  0  0  0  0  0 0 None
0x13f 24 tc  0 32  0 r  .  .  8  8  8  8  0 16  0 16 16 16 16  0 0 Slow
0x140 24 tc  0 32  0 r  y  .  8  8  8  8  0 16  0  0  0  0  0  0 0 None
0x141 24 tc  0 32  0 r  y  .  8  8  8  8  0 16  0 16 16 16 16  0 0 Slow
0x142 24 tc  0 32  0 r  y  .  8  8  8  8  0 16  0  0  0  0  0  0 0 None
0x143 24 tc  0 32  0 r  y  .  8  8  8  8  0 16  0 16 16 16 16  0 0 Slow
0x144 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x145 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 Slow
0x146 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x147 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 Slow
0x148 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x149 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 Slow
0x14a 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8  0  0  0  0  0 0 None
0x14b 24 tc  0 32  0 r  .  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
0x14c 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
0x14d 24 tc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
0x14e 24 tc  0 24  0 r  .  .  8  8  8  0  0  0  0  0  0  0  0  0 0 None
0x14f 24 tc  0 24  0 r  .  .  8  8  8  0  0  0  0 16 16 16  0  0 0 Slow
0x150 24 tc  0 24  0 r  y  .  8  8  8  0  0  0  0  0  0  0  0  0 0 None
0x151 24 tc  0 24  0 r  y  .  8  8  8  0  0  0  0 16 16 16  0  0 0 Slow
0x152 24 tc  0 24  0 r  y  .  8  8  8  0  0  0  0  0  0  0  0  0 0 None
0x153 24 tc  0 24  0 r  y  .  8  8  8  0  0  0  0 16 16 16  0  0 0 Slow
0x154 24 tc  0 24  0 r  .  .  8  8  8  0  0 16  0  0  0  0  0  0 0 None
0x155 24 tc  0 24  0 r  .  .  8  8  8  0  0 16  0 16 16 16  0  0 0 Slow
0x156 24 tc  0 24  0 r  y  .  8  8  8  0  0 16  0  0  0  0  0  0 0 None
0x157 24 tc  0 24  0 r  y  .  8  8  8  0  0 16  0 16 16 16  0  0 0 Slow
0x158 24 tc  0 24  0 r  y  .  8  8  8  0  0 16  0  0  0  0  0  0 0 None
0x159 24 tc  0 24  0 r  y  .  8  8  8  0  0 16  0 16 16 16  0  0 0 Slow
0x15a 24 tc  0 24  0 r  .  .  8  8  8  0  0 24  0  0  0  0  0  0 0 None
0x15b 24 tc  0 24  0 r  .  .  8  8  8  0  0 24  0 16 16 16  0  0 0 Slow
0x15c 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  0  0  0  0  0  0 0 None
0x15d 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  0 16 16 16  0  0 0 Slow
0x15e 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  0  0  0  0  0  0 0 None
0x15f 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  0 16 16 16  0  0 0 Slow
0x160 24 tc  0 24  0 r  .  .  8  8  8  0  0 24  8  0  0  0  0  0 0 None
0x161 24 tc  0 24  0 r  .  .  8  8  8  0  0 24  8 16 16 16  0  0 0 Slow
0x162 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  8  0  0  0  0  0 0 None
0x163 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  8 16 16 16  0  0 0 Slow
0x164 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  8  0  0  0  0  0 0 None
0x165 24 tc  0 24  0 r  y  .  8  8  8  0  0 24  8 16 16 16  0  0 0 Slow
0x166 24 dc  0 32  0 r  .  .  8  8  8  8  0  0  0  0  0  0  0  0 0 None
0x167 24 dc  0 32  0 r  .  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
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0x169 24 dc  0 32  0 r  y  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
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0x16b 24 dc  0 32  0 r  y  .  8  8  8  8  0  0  0 16 16 16 16  0 0 Slow
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0x16d 24 dc  0 32  0 r  .  .  8  8  8  8  0 16  0 16 16 16 16  0 0 Slow
0x16e 24 dc  0 32  0 r  y  .  8  8  8  8  0 16  0  0  0  0  0  0 0 None
0x16f 24 dc  0 32  0 r  y  .  8  8  8  8  0 16  0 16 16 16 16  0 0 Slow
0x170 24 dc  0 32  0 r  y  .  8  8  8  8  0 16  0  0  0  0  0  0 0 None
0x171 24 dc  0 32  0 r  y  .  8  8  8  8  0 16  0 16 16 16 16  0 0 Slow
0x172 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x173 24 dc  0 32  0 r  .  .  8  8  8  8  0 24  0 16 16 16 16  0 0 Slow
0x174 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
0x175 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0 16 16 16 16  0 0 Slow
0x176 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  0  0  0  0  0  0 0 None
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
0x17a 24 dc  0 32  0 r  y  .  8  8  8  8  0 24  8 16 16 16 16  0 0 Slow
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
0x180 24 dc  0 24  0 r  y  .  8  8  8  0  0  0  0 16 16 16  0  0 0 Slow
0x181 24 dc  0 24  0 r  y  .  8  8  8  0  0  0  0  0  0  0  0  0 0 None
0x182 24 dc  0 24  0 r  y  .  8  8  8  0  0  0  0 16 16 16  0  0 0 Slow
0x183 24 dc  0 24  0 r  .  .  8  8  8  0  0 16  0  0  0  0  0  0 0 None
0x184 24 dc  0 24  0 r  .  .  8  8  8  0  0 16  0 16 16 16  0  0 0 Slow
0x185 24 dc  0 24  0 r  y  .  8  8  8  0  0 16  0  0  0  0  0  0 0 None
0x186 24 dc  0 24  0 r  y  .  8  8  8  0  0 16  0 16 16 16  0  0 0 Slow
0x187 24 dc  0 24  0 r  y  .  8  8  8  0  0 16  0  0  0  0  0  0 0 None
0x188 24 dc  0 24  0 r  y  .  8  8  8  0  0 16  0 16 16 16  0  0 0 Slow
0x189 24 dc  0 24  0 r  .  .  8  8  8  0  0 24  0  0  0  0  0  0 0 None
0x18a 24 dc  0 24  0 r  .  .  8  8  8  0  0 24  0 16 16 16  0  0 0 Slow
0x18b 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  0  0  0  0  0  0 0 None
0x18c 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  0 16 16 16  0  0 0 Slow
0x18d 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  0  0  0  0  0  0 0 None
0x18e 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  0 16 16 16  0  0 0 Slow
0x18f 24 dc  0 24  0 r  .  .  8  8  8  0  0 24  8  0  0  0  0  0 0 None
0x190 24 dc  0 24  0 r  .  .  8  8  8  0  0 24  8 16 16 16  0  0 0 Slow
0x191 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  8  0  0  0  0  0 0 None
0x192 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  8 16 16 16  0  0 0 Slow
0x193 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  8  0  0  0  0  0 0 None
0x194 24 dc  0 24  0 r  y  .  8  8  8  0  0 24  8 16 16 16  0  0 0 Slow
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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