Drop the PFD_GENERIC_ACCELERATED flag?
Peter Beutner
p.beutner at gmx.net
Wed Nov 16 17:49:04 CST 2005
Lionel Ulmer schrieb:
> On Wed, Nov 16, 2005 at 03:21:29PM +0100, Peter Beutner wrote:
>
>>At the moment wine always set the PFD_GENERIC_ACCELERATED flag in X11DRV_DescribePixelFormat.
>>SeriousSam uses this flag to determine if the pixelformat is hardware accelerated.
>>If the flag is set it is interpreted as _no_ hardware acceleration available.
>
> Well, the best way to check this would be to run a test case on a Windows
> box with OpenGL installed and accelerated.
>
> Then create the most standard pixel format (ie double buffer + depth buffer)
> and see what the pixel format is. If it does not fill GENERIC_ACCELERATED,
> we should do the same in Wine.
hm as far as I had understand that there is no direct way to determine whether hardware
acceleration is used or not.The only way is to do it indirectly via DescribePixelFormat().
So I can't really use DescribePixelFormat at the same time to test whether the
GENERIC_ACCELERATED flag stands for hardware acceleration or not.
It's kind of chicken and egg problem ;)
However I will just assume that ATI ships its opengl drivers with full hardware
acceleration support.Attached is the output from wglinfo[1].
The column 'geac' shows the PFD_GENERIC_ACCELERATED flag.As you can see it is never set.
So from this I would conclude that PFD_GENERIC_ACCELERATED should not be set.(at least
not unconditionally)
Peter
[1] You can get wglinfo from here:
http://www.cg.tuwien.ac.at/~wimmer/wglinfo/
>
> Note that the equivalent does not really exist in GLX (except maybe between
> the direct / indirect rendering pathes but this is not the same distinction
> than in Windows).
>
> Lionel
>
-------------- next part --------------
OpenGL vendor string: ATI Technologies Inc.
OpenGL renderer string: MOBILITY RADEON 9600 x86/SSE2
OpenGL version string: 1.5.4773 WinXP Release
OpenGL extensions (GL_):
GL_ARB_multitexture, GL_EXT_texture_env_add, GL_EXT_compiled_vertex_array,
GL_S3_s3tc, GL_ARB_depth_texture, GL_ARB_fragment_program,
GL_ARB_fragment_program_shadow, GL_ARB_fragment_shader, GL_ARB_multisample,
GL_ARB_occlusion_query, GL_ARB_point_parameters, GL_ARB_point_sprite,
GL_ARB_shader_objects, GL_ARB_shading_language_100, GL_ARB_shadow,
GL_ARB_shadow_ambient, GL_ARB_texture_border_clamp,
GL_ARB_texture_compression, GL_ARB_texture_cube_map, GL_ARB_texture_env_add,
GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar,
GL_ARB_texture_env_dot3, GL_ARB_texture_mirrored_repeat,
GL_ARB_transpose_matrix, GL_ARB_vertex_blend, GL_ARB_vertex_buffer_object,
GL_ARB_vertex_program, GL_ARB_vertex_shader, GL_ARB_window_pos,
GL_ATI_draw_buffers, GL_ATI_element_array, GL_ATI_envmap_bumpmap,
GL_ATI_fragment_shader, GL_ATI_map_object_buffer, GL_ATI_separate_stencil,
GL_ATI_texture_env_combine3, GL_ATI_texture_float,
GL_ATI_texture_mirror_once, GL_ATI_vertex_array_object,
GL_ATI_vertex_attrib_array_object, GL_ATI_vertex_streams,
GL_ATIX_texture_env_combine3, GL_ATIX_texture_env_route,
GL_ATIX_vertex_shader_output_point_size, GL_EXT_abgr, GL_EXT_bgra,
GL_EXT_blend_color, GL_EXT_blend_func_separate, GL_EXT_blend_minmax,
GL_EXT_blend_subtract, GL_EXT_clip_volume_hint, GL_EXT_draw_range_elements,
GL_EXT_fog_coord, GL_EXT_multi_draw_arrays, GL_EXT_packed_pixels,
GL_EXT_point_parameters, GL_EXT_rescale_normal, GL_EXT_secondary_color,
GL_EXT_separate_specular_color, GL_EXT_shadow_funcs, GL_EXT_stencil_wrap,
GL_EXT_texgen_reflection, GL_EXT_texture3D, GL_EXT_texture_compression_s3tc,
GL_EXT_texture_cube_map, GL_EXT_texture_edge_clamp,
GL_EXT_texture_env_combine, GL_EXT_texture_env_dot3,
GL_EXT_texture_filter_anisotropic, GL_EXT_texture_lod_bias,
GL_EXT_texture_mirror_clamp, GL_EXT_texture_object,
GL_EXT_texture_rectangle, GL_EXT_vertex_array, GL_EXT_vertex_shader,
GL_HP_occlusion_test, GL_NV_texgen_reflection, GL_NV_blend_square,
GL_NV_occlusion_query, GL_SGI_color_matrix, GL_SGIS_texture_edge_clamp,
GL_SGIS_texture_border_clamp, GL_SGIS_texture_lod, GL_SGIS_generate_mipmap,
GL_SGIS_multitexture, GL_SUN_multi_draw_arrays, GL_WIN_swap_hint,
WGL_EXT_extensions_string, WGL_EXT_swap_control.
visual x bf lv rg d st ge ge r g b a ax dp st accum buffs ms
id dep cl sp sz l ci b ro ne ac sz sz sz sz bf th cl r g b a ns b
-----------------------------------------------------------------------
0x01 32 wn . 32 . r . . . . 8 8 8 8 . 24 8 . . . . . .
0x02 32 wn . 32 . r . . . . 8 8 8 8 . 24 8 16 16 16 16 . .
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0x05 32 wn . 32 . r y . . . 8 8 8 8 . 24 8 . . . . . .
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0x4c 32 wn . 32 . c y . y . . . . . . 16 8 . . . . . .
0x4d 24 bm . 24 . r . . y . 8 8 8 . . 32 8 16 16 16 . . .
0x4e 24 bm . 24 . r . . y . 8 8 8 . . 16 8 16 16 16 . . .
0x4f 24 bm . 24 . r . . y . 8 8 8 8 . 32 8 16 16 16 16 . .
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0x51 24 bm . 24 . c . . y . . . . . . 32 8 . . . . . .
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0x5c 8 bm . 8 . r . . y . 3 3 2 8 . 16 8 8 8 8 8 . .
0x5d 8 bm . 8 . c . . y . . . . . . 32 8 . . . . . .
0x5e 8 bm . 8 . c . . y . . . . . . 16 8 . . . . . .
0x5f 4 bm . 4 . r . . y . 1 1 1 . . 32 8 5 6 5 . . .
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0x61 4 bm . 4 . r . . y . 1 1 1 8 . 32 8 4 4 4 4 . .
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0x63 4 bm . 4 . c . . y . . . . . . 32 8 . . . . . .
0x64 4 bm . 4 . c . . y . . . . . . 16 8 . . . . . .
-----------------------------------------------------------------------
visual x bf lv rg d st ge ge r g b a ax dp st accum buffs ms
id dep cl sp sz l ci b ro ne ac sz sz sz sz bf th cl r g b a ns b
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