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Bug #15219: Fix default overlay CSC factors, and use BT709 if available. 

Using the updated factors even when BT709 conversion isn't available
(non-965) should still give us better color reproduction.  Tested on a
945GM, examining the +/-5% of black bars of videotestsrc.
This commit is contained in:
David Schleef 2008-04-08 12:43:20 -07:00 committed by Eric Anholt
parent 37bc23660a
commit af92f4f885
1 changed files with 8 additions and 3 deletions
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11
src/i830_video.c
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@ -190,6 +190,9 @@ void exaMoveInPixmap (PixmapPtr pPixmap);
#define OVERLAY_PIPE_MASK (0x1<<18)
#define OVERLAY_PIPE_A (0x0<<18)
#define OVERLAY_PIPE_B (0x1<<18)
#define GAMMA2_ENBL (0x1<<16)
#define CSC_MODE_BT709 (0x1<<5)
#define CSC_MODE_BT601 (0x0<<5)
#define THREE_LINE_BUFFERS (0x1<<0)
#define TWO_LINE_BUFFERS (0x0<<0)
@ -704,6 +707,8 @@ I830ResetVideo(ScrnInfoPtr pScrn)
overlay->SCLRKVL = 0;
overlay->SCLRKEN = 0; /* source color key disable */
overlay->OCONFIG = CC_OUT_8BIT;
if (IS_I965GM(pI830))
overlay->OCONFIG |= CSC_MODE_BT709;
/*
* Select which pipe the overlay is enabled on.
@ -880,9 +885,9 @@ I830SetupImageVideoOverlay(ScreenPtr pScreen)
pPriv->textured = FALSE;
pPriv->colorKey = pI830->colorKey & ((1 << pScrn->depth) - 1);
pPriv->videoStatus = 0;
pPriv->brightness = 0;
pPriv->contrast = 64;
pPriv->saturation = 128;
pPriv->brightness = -19; /* (255/219) * -16 */
pPriv->contrast = 75; /* 255/219 * 64 */
pPriv->saturation = 146; /* 128/112 * 128 */
pPriv->current_crtc = NULL;
pPriv->desired_crtc = NULL;
pPriv->buf = NULL;