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intel buggy driver hack

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This commit is contained in:
David Rose 2009-01-27 06:31:49 +00:00
parent f6030da8bc
commit 12539bfd45
6 changed files with 38 additions and 6 deletions
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9
panda/src/dxgsg9/config_dxgsg9.cxx
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@ -120,6 +120,15 @@ ConfigVariableBool dx_preserve_fpu_state
ConfigVariableInt dx_preferred_device_id
("dx-preferred-device-id", -1);
ConfigVariableBool dx_intel_compressed_texture_bug
("dx-intel-compressed-texture-bug", true,
PRC_DESC("Set this true to work around a bug in the Intel driver "
"igdumd32.dll, for at least the 965 Express chipset family, "
"which breaks compressed texture images smaller "
"than about 256x256 (even mipmap levels). The workaround is "
"simply to disable compressed texture support when this "
"driver is detected."));
#ifdef _DEBUG
ConfigVariableDouble dx_global_miplevel_bias
("dx-global-miplevel-bias", 0.0);

2
panda/src/dxgsg9/config_dxgsg9.h
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@ -47,6 +47,8 @@ extern ConfigVariableBool dx_do_vidmemsize_check;
extern ConfigVariableBool dx_preserve_fpu_state;
extern ConfigVariableInt dx_preferred_device_id;
extern ConfigVariableBool dx_intel_compressed_texture_bug;
#ifndef NDEBUG
extern ConfigVariableInt dx_force_backface_culling;
#endif

19
panda/src/dxgsg9/dxGraphicsStateGuardian9.cxx
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@ -2678,11 +2678,20 @@ reset() {
_compressed_texture_formats.set_bit(Texture::CM_dxt##num);\
}
CHECK_FOR_DXTVERSION(1)
CHECK_FOR_DXTVERSION(2)
CHECK_FOR_DXTVERSION(3)
CHECK_FOR_DXTVERSION(4)
CHECK_FOR_DXTVERSION(5)
if (_screen->_intel_compressed_texture_bug) {
dxgsg9_cat.info()
<< "Buggy Intel driver detected; disabling compressed textures.\n";
_screen->_supported_tex_formats_mask &=
~(DXT1_FLAG | DXT2_FLAG | DXT3_FLAG | DXT4_FLAG | DXT5_FLAG);
} else {
// Check for available compressed formats normally.
CHECK_FOR_DXTVERSION(1);
CHECK_FOR_DXTVERSION(2);
CHECK_FOR_DXTVERSION(3);
CHECK_FOR_DXTVERSION(4);
CHECK_FOR_DXTVERSION(5);
}
#undef CHECK_FOR_DXTVERSION

1
panda/src/dxgsg9/dxgsg9base.h
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@ -210,6 +210,7 @@ struct DXScreenData {
bool _supports_dynamic_textures;
bool _supports_automatic_mipmap_generation;
bool _intel_compressed_texture_bug;
};

10
panda/src/dxgsg9/wdxGraphicsWindow9.cxx
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@ -930,6 +930,7 @@ choose_device() {
MAX_DEVICE_IDENTIFIER_STRING);
devinfo.VendorID = adapter_info.VendorId;
devinfo.DeviceID = adapter_info.DeviceId;
devinfo._driver_version = adapter_info.DriverVersion;
devinfo._monitor = _monitor;
devinfo.cardID = i;
@ -1136,6 +1137,15 @@ consider_device(wdxGraphicsPipe9 *dxpipe, DXDeviceInfo *device_info) {
_wcontext._display_mode.RefreshRate = D3DPRESENT_RATE_DEFAULT;
_wcontext._monitor = device_info->_monitor;
if (strcmp(device_info->szDriver, "igdumd32.dll") == 0 &&
device_info->_driver_version.QuadPart <= 0x0007000e000a0531LL &&
dx_intel_compressed_texture_bug) {
// Disable compressed textures for this buggy driver (7.14.10.1329
// and earlier--I don't know whether any other drivers also
// exhibit the bug).
_wcontext._intel_compressed_texture_bug = true;
}
return true;
}

1
panda/src/dxgsg9/wdxGraphicsWindow9.h
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@ -61,6 +61,7 @@ private:
char szDescription[MAX_DEVICE_IDENTIFIER_STRING];
GUID guidDeviceIdentifier;
DWORD VendorID, DeviceID;
LARGE_INTEGER _driver_version;
HMONITOR _monitor;
};
typedef pvector<DXDeviceInfo> DXDeviceInfoVec;