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wined3d: Remove arb_tex_npot for NV FX series in fixup_extensions.

This commit is contained in:
Tobias Jakobi 2008-08-03 00:59:48 +02:00 committed by Alexandre Julliard
parent d28a310f92
commit 2583975ec7
1 changed files with 23 additions and 0 deletions
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23
dlls/wined3d/directx.c
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@ -3814,6 +3814,29 @@ static void fixup_extensions(WineD3D_GL_Info *gl_info) {
}
}
/* The nVidia GeForceFX series reports OpenGL 2.0 capabilities with the latest drivers versions, but
* doesn't explicitly advertise the ARB_tex_npot extension in the GL extension string.
* This usually means that ARB_tex_npot is supported in hardware as long as the application is staying
* within the limits enforced by the ARB_texture_rectangle extension. This however is not true for the
* FX series, which instantly falls back to a slower software path as soon as ARB_tex_npot is used.
* We therefore completly remove ARB_tex_npot from the list of supported extensions.
*
* Note that wine_normalized_texrect can't be used in this case because internally it uses ARB_tex_npot,
* triggering the software fallback. There is not much we can do here apart from disabling the
* software-emulated extension and reenable ARB_tex_rect (which was previously disabled
* in IWineD3DImpl_FillGLCaps).
* This fixup removes performance problems on both the FX 5900 and FX 5700 (e.g. for framebuffer
* post-processing effects in the game "Max Payne 2").
* The behaviour can be verified through a simple test app attached in bugreport #14724.
*/
if(gl_info->supported[ARB_TEXTURE_NON_POWER_OF_TWO] && gl_info->gl_vendor == VENDOR_NVIDIA) {
if(gl_info->gl_card == CARD_NVIDIA_GEFORCEFX_5800 || gl_info->gl_card == CARD_NVIDIA_GEFORCEFX_5600) {
TRACE("GL_ARB_texture_non_power_of_two advertised through OpenGL 2.0 on NV FX card, removing\n");
gl_info->supported[ARB_TEXTURE_NON_POWER_OF_TWO] = FALSE;
gl_info->supported[ARB_TEXTURE_RECTANGLE] = TRUE;
}
}
/* Find out if PBOs work as they are supposed to */
test_pbo_functionality(gl_info);