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Add filters to CRTC transforms.

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This allows scaling transforms to use bilinear filtering if desired.
This commit is contained in:
Keith Packard 2008-03-15 00:32:35 -07:00
parent 329b2068c1
commit aa5cd18a9f
2 changed files with 16 additions and 4 deletions
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11
randrproto.h
View file

@ -570,7 +570,8 @@ typedef struct {
xRenderTransform transform;
CARD32 pad0 B32;
xRenderTransform inverse;
CARD32 pad1 B32;
CARD16 nbytesFilter; /* number of bytes in filter name */
CARD16 pad B16;
} xRRSetCrtcTransformReq;
#define sz_xRRSetCrtcTransformReq 88
@ -592,13 +593,15 @@ typedef struct {
xRenderTransform pendingTransform;
BYTE hasTransforms;
CARD8 pad0a;
CARD16 pad0b B16;
CARD16 pad0 B16;
xRenderTransform pendingInverse;
CARD32 pad1 B32;
CARD16 pendingNbytesFilter B16; /* number of bytes in filter name */
CARD16 pendingNparamsFilter B16; /* number of filter params */
xRenderTransform currentTransform;
CARD32 pad2 B32;
xRenderTransform currentInverse;
CARD32 pad3 B32;
CARD16 currentNbytesFilter B16; /* number of bytes in filter name */
CARD16 currentNparamsFilter B16; /* number of filter params */
} xRRGetCrtcTransformReply;
#define sz_xRRGetCrtcTransformReply 168

9
randrproto.txt
View file

@ -984,6 +984,8 @@ dynamic changes in the display environment.
crtc: CRTC
transform: TRANSFORM
inverse: TRANSFORM
filter: STRING8
values: LISTofFIXED
└───
Errors: Crtc, Match
@ -995,6 +997,9 @@ transformation is applied before the rotation and reflection values to
compute the complete transform. 'inverse' must be the
multiplicative inverse of 'transform' or a Match error results.
'filter' and 'values' specify a Render filter that may be used by the server
when transforming data from frame buffer to crtc.
This request sets the transform to be used at the next RRSetCrtcConfig
request execution; it does not cause any change to occur in the current
configuration.
@ -1010,8 +1015,12 @@ the screen when the mode is set.
▶
pending-transform: TRANSFORM
pending-inverse: TRANSFORM
pending-filter: STRING8
pending-values: LISTofFIXED
current-transform: TRANSFORM
current-inverse: TRANSFORM
current-filter: STRING8
current-values: LISTofFIXED
└───
This request returns the pending and current transforms for the specified