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svga: fail screen creation if HW version is too old

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Tested by verifying 3D acceleration works with HWv8 but not earlier.
For HWv7 and older we get the GDI Generic renderer.

Reviewed-by: Neha Bhende<bhenden@vmware.com>
Reviewed-by: Charmaine Lee <charmainel@vmware.com>
This commit is contained in:
Brian Paul 2017-04-06 14:55:53 -06:00
parent 8de0452ec4
commit 577e114e46
1 changed files with 7 additions and 0 deletions
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7
src/gallium/drivers/svga/svga_screen.c
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@ -988,6 +988,13 @@ svga_screen_create(struct svga_winsys_screen *sws)
svgascreen->hw_version = SVGA3D_HWVERSION_WS65_B1;
}
if (svgascreen->hw_version < SVGA3D_HWVERSION_WS8_B1) {
/* too old for 3D acceleration */
debug_printf("Hardware version 0x%x is too old for accerated 3D\n",
svgascreen->hw_version);
goto error2;
}
/*
* The D16, D24X8, and D24S8 formats always do an implicit shadow compare
* when sampled from, where as the DF16, DF24, and D24S8_INT do not. So