dmxpict.h File Reference

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Data Structures
struct	_dmxPictPriv
struct	_dmxGlyphPriv
Defines
#define	DMX_GET_PICT_PRIV(_pPict)   (dmxPictPrivPtr)dixLookupPrivate(&(_pPict)->devPrivates, dmxPictPrivateKey)
#define	DMX_SET_GLYPH_PRIV(_pGlyph, _pPriv)   GlyphSetSetPrivate((_pGlyph), dmxGlyphSetPrivateKey, (_pPriv))
#define	DMX_GET_GLYPH_PRIV(_pGlyph)   (dmxGlyphPrivPtr)GlyphSetGetPrivate((_pGlyph), dmxGlyphSetPrivateKey)
Typedefs
typedef struct _dmxPictPriv	dmxPictPrivRec
typedef struct _dmxPictPriv *	dmxPictPrivPtr
typedef struct _dmxGlyphPriv	dmxGlyphPrivRec
typedef struct _dmxGlyphPriv *	dmxGlyphPrivPtr
Functions
void	dmxInitRender (void)
void	dmxResetRender (void)
Bool	dmxPictureInit (ScreenPtr pScreen, PictFormatPtr formats, int nformats)
void	dmxCreatePictureList (WindowPtr pWindow)
Bool	dmxDestroyPictureList (WindowPtr pWindow)
int	dmxCreatePicture (PicturePtr pPicture)
void	dmxDestroyPicture (PicturePtr pPicture)
int	dmxChangePictureClip (PicturePtr pPicture, int clipType, pointer value, int n)
void	dmxDestroyPictureClip (PicturePtr pPicture)
void	dmxChangePicture (PicturePtr pPicture, Mask mask)
void	dmxValidatePicture (PicturePtr pPicture, Mask mask)
void	dmxComposite (CARD8 op, PicturePtr pSrc, PicturePtr pMask, PicturePtr pDst, INT16 xSrc, INT16 ySrc, INT16 xMask, INT16 yMask, INT16 xDst, INT16 yDst, CARD16 width, CARD16 height)
void	dmxGlyphs (CARD8 op, PicturePtr pSrc, PicturePtr pDst, PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, int nlists, GlyphListPtr lists, GlyphPtr *glyphs)
void	dmxCompositeRects (CARD8 op, PicturePtr pDst, xRenderColor *color, int nRect, xRectangle *rects)
Bool	dmxInitIndexed (ScreenPtr pScreen, PictFormatPtr pFormat)
void	dmxCloseIndexed (ScreenPtr pScreen, PictFormatPtr pFormat)
void	dmxUpdateIndexed (ScreenPtr pScreen, PictFormatPtr pFormat, int ndef, xColorItem *pdef)
void	dmxTrapezoids (CARD8 op, PicturePtr pSrc, PicturePtr pDst, PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, int ntrap, xTrapezoid *traps)
void	dmxTriangles (CARD8 op, PicturePtr pSrc, PicturePtr pDst, PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, int ntri, xTriangle *tris)
void	dmxTriStrip (CARD8 op, PicturePtr pSrc, PicturePtr pDst, PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, int npoint, xPointFixed *points)
void	dmxTriFan (CARD8 op, PicturePtr pSrc, PicturePtr pDst, PictFormatPtr maskFormat, INT16 xSrc, INT16 ySrc, int npoint, xPointFixed *points)
int	dmxBECreateGlyphSet (int idx, GlyphSetPtr glyphSet)
Bool	dmxBEFreeGlyphSet (ScreenPtr pScreen, GlyphSetPtr glyphSet)
int	dmxBECreatePicture (PicturePtr pPicture)
Bool	dmxBEFreePicture (PicturePtr pPicture)
Variables
DevPrivateKey	dmxPictPrivateKey
DevPrivateKey	dmxGlyphSetPrivateKey

---

Detailed Description

This file provides access to the externally visible RENDER support functions, global variables and macros for DMX.

FIXME: Move function definitions for non-externally visible function to .c file.

---

Define Documentation

#define DMX_GET_GLYPH_PRIV

(

_pGlyph

)

(dmxGlyphPrivPtr)GlyphSetGetPrivate((_pGlyph), dmxGlyphSetPrivateKey)

Get the glyphset private data given a glyphset pointer

Referenced by dmxBECreateGlyphSet(), dmxBEFreeGlyphSet(), dmxBERestoreRenderGlyph(), dmxProcRenderAddGlyphs(), dmxProcRenderCompositeGlyphs(), dmxProcRenderFreeGlyphs(), and dmxProcRenderFreeGlyphSet().

#define DMX_GET_PICT_PRIV

(

_pPict

)

(dmxPictPrivPtr)dixLookupPrivate(&(_pPict)->devPrivates, dmxPictPrivateKey)

Get the picture private data given a picture pointer

Referenced by dmxBECreatePicture(), dmxBEFreePicture(), dmxChangePicture(), dmxChangePictureClip(), dmxComposite(), dmxCompositeRects(), dmxCreatePicture(), dmxCreatePictureList(), dmxDestroyPictureClip(), dmxProcRenderCompositeGlyphs(), dmxProcRenderSetPictureFilter(), dmxProcRenderSetPictureTransform(), dmxTrapezoids(), dmxTriangles(), dmxTriFan(), dmxTriStrip(), and dmxValidatePicture().

#define DMX_SET_GLYPH_PRIV	(	_pGlyph,
		_pPriv		)	GlyphSetSetPrivate((_pGlyph), dmxGlyphSetPrivateKey, (_pPriv))

Set the glyphset private data given a glyphset pointer

Referenced by dmxProcRenderCreateGlyphSet(), and dmxProcRenderFreeGlyphSet().

---

Typedef Documentation

typedef struct _dmxGlyphPriv * dmxGlyphPrivPtr

typedef struct _dmxGlyphPriv dmxGlyphPrivRec

Glyph Set private structure

typedef struct _dmxPictPriv * dmxPictPrivPtr

typedef struct _dmxPictPriv dmxPictPrivRec

Picture private structure

---

Function Documentation

int dmxBECreateGlyphSet	(	int	idx,
		GlyphSetPtr	glyphSet
	)

Create glyphSet on the backend screen number idx.

References _DMXScreenInfo::beDisplay, DMX_GET_GLYPH_PRIV, dmxFindFormat(), dmxGlyphErrorHandler(), dmxGlyphLastError, dmxScreens, and _dmxGlyphPriv::glyphSets.

Referenced by dmxBERestoreRenderGlyph(), and dmxProcRenderCreateGlyphSet().

int dmxBECreatePicture

(

PicturePtr

pPicture

)

Create pPicture on the backend.

References DMX_GET_PICT_PRIV, dmxDoCreatePicture(), dmxValidatePicture(), and _dmxPictPriv::pict.

Referenced by dmxBERestoreRenderPict().

Bool dmxBEFreeGlyphSet	(	ScreenPtr	pScreen,
		GlyphSetPtr	glyphSet
	)

Free glyphSet on back-end screen number idx.

References _DMXScreenInfo::beDisplay, DMX_GET_GLYPH_PRIV, dmxScreens, and _dmxGlyphPriv::glyphSets.

Referenced by dmxBECreateResources(), dmxBEDestroyResources(), dmxProcRenderCreateGlyphSet(), and dmxProcRenderFreeGlyphSet().

Bool dmxBEFreePicture

(

PicturePtr

pPicture

)

Destroy pPicture on the back-end server.

References _DMXScreenInfo::beDisplay, DMX_GET_PICT_PRIV, dmxScreens, and _dmxPictPriv::pict.

Referenced by dmxBEDestroyResources(), dmxDestroyPicture(), and dmxDestroyPictureList().

void dmxChangePicture	(	PicturePtr	pPicture,
		Mask	mask
	)

Change the attributes of the pictures. If the picture has not yet been created due to lazy window creation, save the mask so that it can be used to appropriately initialize the picture's attributes when it is created later.

References DMX_GET_PICT_PRIV, DMX_UNWRAP, DMX_WRAP, dmxChangePicture(), dmxScreens, and _dmxPictPriv::savedMask.

Referenced by dmxChangePicture(), and dmxPictureInit().

int dmxChangePictureClip	(	PicturePtr	pPicture,
		int	clipType,
		pointer	value,
		int	n
	)

Change the picture's list of clip rectangles.

References _DMXScreenInfo::beDisplay, DMX_GET_PICT_PRIV, DMX_UNWRAP, DMX_WRAP, dmxChangePictureClip(), dmxScreens, dmxSync(), and _dmxPictPriv::pict.

Referenced by dmxChangePictureClip(), and dmxPictureInit().

void dmxCloseIndexed	(	ScreenPtr	pScreen,
		PictFormatPtr	pFormat
	)

Indexed color visuals are not yet supported.

void dmxComposite	(	CARD8	op,
		PicturePtr	pSrc,
		PicturePtr	pMask,
		PicturePtr	pDst,
		INT16	xSrc,
		INT16	ySrc,
		INT16	xMask,
		INT16	yMask,
		INT16	xDst,
		INT16	yDst,
		CARD16	width,
		CARD16	height
	)

Composite a picture on the appropriate screen by combining the specified rectangle of the transformed src and mask operands with the specified rectangle of the dst using op as the compositing operator. For a complete description see the protocol document of the RENDER library.

References _DMXScreenInfo::beDisplay, DMX_GET_PICT_PRIV, DMX_UNWRAP, DMX_WRAP, dmxComposite(), dmxScreens, dmxSync(), and _dmxPictPriv::pict.

Referenced by dmxComposite(), and dmxPictureInit().

void dmxCompositeRects	(	CARD8	op,
		PicturePtr	pDst,
		xRenderColor *	color,
		int	nRect,
		xRectangle *	rects
	)

Fill a rectangle on the appropriate screen by combining the color with the dest picture in the area specified by the list of rectangles. For a complete description see the protocol document of the RENDER library.

References _DMXScreenInfo::beDisplay, DMX_GET_PICT_PRIV, DMX_UNWRAP, DMX_WRAP, dmxCompositeRects(), dmxScreens, dmxSync(), and _dmxPictPriv::pict.

Referenced by dmxCompositeRects(), and dmxPictureInit().

int dmxCreatePicture

(

PicturePtr

pPicture

)

Create a picture. This function handles the CreatePicture unwrapping/wrapping and calls dmxDoCreatePicture to actually create the picture on the appropriate screen.

References DMX_GET_PICT_PRIV, DMX_UNWRAP, DMX_WRAP, dmxCreatePicture(), dmxDoCreatePicture(), dmxScreens, _dmxPictPriv::pict, and _dmxPictPriv::savedMask.

Referenced by dmxCreatePicture(), and dmxPictureInit().

void dmxCreatePictureList

(

WindowPtr

pWindow

)

Create a list of pictures. This function is called by dmxCreateAndRealizeWindow() during the lazy window creation realization process. It creates the entire list of pictures that are associated with the given window.

References DMX_GET_PICT_PRIV, dmxDoCreatePicture(), and _dmxPictPriv::pict.

Referenced by dmxCreateAndRealizeWindow().

void dmxDestroyPicture

(

PicturePtr

pPicture

)

Destroy a picture. This function calls the wrapped function that frees the resources in the DMX server associated with this picture.

References DMX_UNWRAP, DMX_WRAP, dmxBEFreePicture(), dmxDestroyPicture(), dmxScreens, and dmxSync().

Referenced by dmxDestroyPicture(), and dmxPictureInit().

void dmxDestroyPictureClip

(

PicturePtr

pPicture

)

Destroy the picture's list of clip rectangles.

References _DMXScreenInfo::beDisplay, DMX_GET_PICT_PRIV, DMX_UNWRAP, DMX_WRAP, dmxDestroyPictureClip(), dmxScreens, dmxSync(), and _dmxPictPriv::pict.

Referenced by dmxDestroyPictureClip(), and dmxPictureInit().

Bool dmxDestroyPictureList

(

WindowPtr

pWindow

)

Destroy a list of pictures that are associated with the window that is being destroyed. This function is called by dmxDestroyWindow().

References dmxBEFreePicture().

Referenced by dmxDestroyWindow().

void dmxGlyphs	(	CARD8	op,
		PicturePtr	pSrc,
		PicturePtr	pDst,
		PictFormatPtr	maskFormat,
		INT16	xSrc,
		INT16	ySrc,
		int	nlists,
		GlyphListPtr	lists,
		GlyphPtr *	glyphs
	)

Null function to catch when/if RENDER calls lower level mi hooks. Compositing glyphs is handled by dmxProcRenderCompositeGlyphs(). This function should never be called.

Referenced by dmxPictureInit().

Bool dmxInitIndexed	(	ScreenPtr	pScreen,
		PictFormatPtr	pFormat
	)

Indexed color visuals are not yet supported.

void dmxInitRender

(

void

)

Initialize the Proc Vector for the RENDER extension. The functions here cannot be handled by the mi layer RENDER hooks either because the required information is no longer available when it reaches the mi layer or no mi layer hooks exist. This function is called from InitOutput() since it should be initialized only once per server generation.

References dmxProcRenderAddGlyphs(), dmxProcRenderCompositeGlyphs(), dmxProcRenderCreateGlyphSet(), dmxProcRenderFreeGlyphs(), dmxProcRenderFreeGlyphSet(), dmxProcRenderSetPictureFilter(), dmxProcRenderSetPictureTransform(), dmxSaveRenderVector, and ProcRenderVector.

Referenced by InitOutput().

Bool dmxPictureInit	(	ScreenPtr	pScreen,
		PictFormatPtr	formats,
		int	nformats
	)

Initialize the RENDER extension, allocate the picture privates and wrap mi function hooks. If the shadow frame buffer is used, then call the appropriate fb initialization function.

References DMX_WRAP, dmxChangePicture(), dmxChangePictureClip(), dmxComposite(), dmxCompositeRects(), dmxCreatePicture(), dmxDestroyPicture(), dmxDestroyPictureClip(), dmxGlyphs(), dmxPictPrivateKey, dmxScreens, dmxShadowFB, dmxTrapezoids(), dmxTriangles(), dmxTriFan(), dmxTriStrip(), and dmxValidatePicture().

Referenced by dmxScreenInit().

void dmxResetRender

(

void

)

Reset the Proc Vector for the RENDER extension back to the original functions. This function is called from dmxCloseScreen() during the server reset (only for screen #0).

References dmxSaveRenderVector, and ProcRenderVector.

Referenced by dmxCloseScreen().

void dmxTrapezoids	(	CARD8	op,
		PicturePtr	pSrc,
		PicturePtr	pDst,
		PictFormatPtr	maskFormat,
		INT16	xSrc,
		INT16	ySrc,
		int	ntrap,
		xTrapezoid *	traps
	)

Composite a list of trapezoids on the appropriate screen. For a complete description see the protocol document of the RENDER library.

References _DMXScreenInfo::beDisplay, DMX_GET_PICT_PRIV, DMX_UNWRAP, DMX_WRAP, dmxFindFormat(), dmxScreens, dmxSync(), dmxTrapezoids(), and _dmxPictPriv::pict.

Referenced by dmxPictureInit(), and dmxTrapezoids().

void dmxTriangles	(	CARD8	op,
		PicturePtr	pSrc,
		PicturePtr	pDst,
		PictFormatPtr	maskFormat,
		INT16	xSrc,
		INT16	ySrc,
		int	ntri,
		xTriangle *	tris
	)

Composite a list of triangles on the appropriate screen. For a complete description see the protocol document of the RENDER library.

References _DMXScreenInfo::beDisplay, DMX_GET_PICT_PRIV, DMX_UNWRAP, DMX_WRAP, dmxFindFormat(), dmxScreens, dmxSync(), dmxTriangles(), and _dmxPictPriv::pict.

Referenced by dmxPictureInit(), and dmxTriangles().

void dmxTriFan	(	CARD8	op,
		PicturePtr	pSrc,
		PicturePtr	pDst,
		PictFormatPtr	maskFormat,
		INT16	xSrc,
		INT16	ySrc,
		int	npoint,
		xPointFixed *	points
	)

Composite a triangle fan on the appropriate screen. For a complete description see the protocol document of the RENDER library.

References _DMXScreenInfo::beDisplay, DMX_GET_PICT_PRIV, DMX_UNWRAP, DMX_WRAP, dmxFindFormat(), dmxScreens, dmxSync(), dmxTriFan(), and _dmxPictPriv::pict.

Referenced by dmxPictureInit(), and dmxTriFan().

void dmxTriStrip	(	CARD8	op,
		PicturePtr	pSrc,
		PicturePtr	pDst,
		PictFormatPtr	maskFormat,
		INT16	xSrc,
		INT16	ySrc,
		int	npoint,
		xPointFixed *	points
	)

Composite a triangle strip on the appropriate screen. For a complete description see the protocol document of the RENDER library.

References _DMXScreenInfo::beDisplay, DMX_GET_PICT_PRIV, DMX_UNWRAP, DMX_WRAP, dmxFindFormat(), dmxScreens, dmxSync(), dmxTriStrip(), and _dmxPictPriv::pict.

Referenced by dmxPictureInit(), and dmxTriStrip().

void dmxUpdateIndexed	(	ScreenPtr	pScreen,
		PictFormatPtr	pFormat,
		int	ndef,
		xColorItem *	pdef
	)

Indexed color visuals are not yet supported.

void dmxValidatePicture	(	PicturePtr	pPicture,
		Mask	mask
	)

Validate the picture's attributes before rendering to it. Update any picture attributes that have been changed by one of the higher layers.

References _DMXScreenInfo::beDisplay, DMX_GET_PICT_PRIV, DMX_UNWRAP, DMX_WRAP, dmxScreens, dmxSync(), dmxValidatePicture(), _dmxPictPriv::pict, and _dmxPictPriv::savedMask.

Referenced by dmxBECreatePicture(), dmxPictureInit(), and dmxValidatePicture().

---

Variable Documentation

DevPrivateKey dmxGlyphSetPrivateKey

Index for glyphset private data

Private index for GlyphSets

DevPrivateKey dmxPictPrivateKey

Index for picture private data

Private index for Picts

Referenced by dmxPictureInit().