diff options
| author | Mike Isely <isely@pobox.com> | 2008-04-09 14:15:03 +0800 |
|---|---|---|
| committer | Zhenyu Wang <zhenyu.z.wang@intel.com> | 2008-04-09 14:15:03 +0800 |
| commit | e031cc02e65acfbafb48136dad414751e04425c5 (patch) | |
| tree | 74cd9cece306a6ba4d3531702a655c33e4f2180f /src/i830_driver.c | |
| parent | 79b18980ac9f60b1978abe421352df965aed1681 (diff) | |
Implement support for 24 bit pixel format
The Intel driver appears to be coded to only work with displays
expecting 18 bit pixels. However I have an application using a LCD
display that expects pixel data in 24 bit format. The difference is
only 2 bits in a single GPU register. This patch implements that
change, controlled by a new driver option, "LVDS24Bit". The default
value is false, which is the previous behavior. When set to true,
then 24 bit panels should work (at least the one I'm testing here
does).
Fd.o bug #15201
Signed-off-by: Mike Isely <isely@pobox.com>
Diffstat (limited to 'src/i830_driver.c')
| -rw-r--r-- | src/i830_driver.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/i830_driver.c b/src/i830_driver.c index a19c8ebf..66153b76 100644 --- a/src/i830_driver.c +++ b/src/i830_driver.c @@ -296,6 +296,7 @@ typedef enum { OPTION_COLOR_KEY, OPTION_CHECKDEVICES, OPTION_MODEDEBUG, + OPTION_LVDS24BITMODE, OPTION_FBC, OPTION_TILING, #ifdef XF86DRI_MM @@ -322,6 +323,7 @@ static OptionInfoRec I830Options[] = { {OPTION_VIDEO_KEY, "VideoKey", OPTV_INTEGER, {0}, FALSE}, {OPTION_CHECKDEVICES, "CheckDevices",OPTV_BOOLEAN, {0}, FALSE}, {OPTION_MODEDEBUG, "ModeDebug", OPTV_BOOLEAN, {0}, FALSE}, + {OPTION_LVDS24BITMODE, "LVDS24Bit", OPTV_BOOLEAN, {0}, FALSE}, {OPTION_FBC, "FramebufferCompression", OPTV_BOOLEAN, {0}, TRUE}, {OPTION_TILING, "Tiling", OPTV_BOOLEAN, {0}, TRUE}, #ifdef XF86DRI_MM @@ -1398,6 +1400,12 @@ I830PreInit(ScrnInfoPtr pScrn, int flags) pI830->debug_modes = FALSE; } + if (xf86ReturnOptValBool(pI830->Options, OPTION_LVDS24BITMODE, FALSE)) { + pI830->lvds_24_bit_mode = TRUE; + } else { + pI830->lvds_24_bit_mode = FALSE; + } + if (xf86ReturnOptValBool(pI830->Options, OPTION_FORCEENABLEPIPEA, FALSE)) pI830->quirk_flag |= QUIRK_PIPEA_FORCE; |