266 lines
9.9 KiB
C
266 lines
9.9 KiB
C
/*
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*
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* Copyright (C) 2000 Keith Packard
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* 2004 Eric Anholt
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* 2005 Zack Rusin
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of copyright holders not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Copyright holders make no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#ifndef EXA_H
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#define EXA_H
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#include "scrnintstr.h"
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#include "pixmapstr.h"
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#include "windowstr.h"
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#include "gcstruct.h"
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#include "picturestr.h"
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#define EXA_VERSION_MAJOR 0
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#define EXA_VERSION_MINOR 2
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#define EXA_VERSION_RELEASE 0
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typedef struct _ExaOffscreenArea ExaOffscreenArea;
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typedef void (*ExaOffscreenSaveProc) (ScreenPtr pScreen, ExaOffscreenArea *area);
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typedef enum _ExaOffscreenState {
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ExaOffscreenAvail,
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ExaOffscreenRemovable,
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ExaOffscreenLocked
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} ExaOffscreenState;
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struct _ExaOffscreenArea {
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int base_offset; /* allocation base */
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int offset; /* aligned offset */
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int size; /* total allocation size */
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int score;
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pointer privData;
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ExaOffscreenSaveProc save;
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ExaOffscreenState state;
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ExaOffscreenArea *next;
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};
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typedef struct _ExaCardInfo {
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/* These are here because I don't want to be adding more to
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* ScrnInfoRec */
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CARD8 *memoryBase;
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unsigned long offScreenBase;
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/* It's fix.smem_len.
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This one could be potentially substituted by ScrnInfoRec
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videoRam member, but I do not want to be doing the silly
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<< 10, >>10 all over the place */
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unsigned long memorySize;
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int pixmapOffsetAlign;
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int pixmapPitchAlign;
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int flags;
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/* The coordinate limitations for rendering for this hardware.
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* Exa breaks larger pixmaps into smaller pieces and calls Prepare multiple times
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* to handle larger pixmaps
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*/
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int maxX;
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int maxY;
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/* private */
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ExaOffscreenArea *offScreenAreas;
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Bool needsSync;
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int lastMarker;
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} ExaCardInfoRec, *ExaCardInfoPtr;
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typedef struct _ExaAccelInfo {
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/* PrepareSolid may fail if the pixmaps can't be accelerated to/from.
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* This is an important feature for handling strange corner cases
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* in hardware that are poorly expressed through flags.
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*/
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Bool (*PrepareSolid) (PixmapPtr pPixmap,
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int alu,
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Pixel planemask,
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Pixel fg);
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void (*Solid) (PixmapPtr pPixmap, int x1, int y1, int x2, int y2);
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void (*DoneSolid) (PixmapPtr pPixmap);
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/* PrepareSolid may fail if the pixmaps can't be accelerated to/from.
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* This is an important feature for handling strange corner cases
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* in hardware that are poorly expressed through flags.
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*/
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Bool (*PrepareCopy) (PixmapPtr pSrcPixmap,
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PixmapPtr pDstPixmap,
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int dx,
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int dy,
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int alu,
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Pixel planemask);
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void (*Copy) (PixmapPtr pDstPixmap,
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int srcX,
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int srcY,
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int dstX,
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int dstY,
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int width,
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int height);
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void (*DoneCopy) (PixmapPtr pDstPixmap);
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/* The Composite hooks are a wrapper around the Composite operation.
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* The CheckComposite occurs before pixmap migration occurs,
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* and may fail for many hardware-dependent reasons.
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* PrepareComposite should not fail, and the Bool return may
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* not be necessary if we can
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* adequately represent pixmap location/pitch limitations..
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*/
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Bool (*CheckComposite) (int op,
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PicturePtr pSrcPicture,
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PicturePtr pMaskPicture,
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PicturePtr pDstPicture);
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Bool (*PrepareComposite) (int op,
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PicturePtr pSrcPicture,
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PicturePtr pMaskPicture,
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PicturePtr pDstPicture,
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PixmapPtr pSrc,
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PixmapPtr pMask,
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PixmapPtr pDst);
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void (*Composite) (PixmapPtr pDst,
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int srcX,
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int srcY,
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int maskX,
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int maskY,
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int dstX,
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int dstY,
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int width,
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int height);
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void (*DoneComposite) (PixmapPtr pDst);
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/* Attempt to upload the data from src into the rectangle of the
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* in-framebuffer pDst beginning at x,y and of width w,h. May fail.
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*/
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Bool (*UploadToScreen) (PixmapPtr pDst,
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int x,
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int y,
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int w,
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int h,
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char *src,
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int src_pitch);
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Bool (*UploadToScratch) (PixmapPtr pSrc,
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PixmapPtr pDst);
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/* Attempt to download the rectangle from the in-framebuffer pSrc into
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* dst, given the pitch. May fail. Since it is likely
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* accelerated, a markSync will follow it as with other acceleration
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* hooks.
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*/
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Bool (*DownloadFromScreen)(PixmapPtr pSrc,
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int x, int y,
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int w, int h,
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char *dst, int dst_pitch);
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/* Should return a hrdware-dependent marker number which can
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* be waited for with WaitMarker. It can be not implemented in which
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* case WaitMarker must wait for idle on any given marker
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* number.
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*/
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int (*MarkSync) (ScreenPtr pScreen);
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void (*WaitMarker) (ScreenPtr pScreen, int marker);
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/* These are wrapping all fb or composite operations that will cause
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* a direct access to the framebuffer. You can use them to update
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* endian swappers, force migration to RAM, or whatever else you find
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* useful at this point. EXA can stack up to 3 calls to Prepare/Finish
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* access, though they will have a different index. If your hardware
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* doesn't have enough separate configurable swapper, you can return
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* FALSE from PrepareAccess() to force EXA to migrate the pixmap to RAM.
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* Note that DownloadFromScreen and UploadToScreen can both be called
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* between PrepareAccess() and FinishAccess(). If they need to use a
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* swapper, they should save & restore its setting.
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*/
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Bool (*PrepareAccess)(PixmapPtr pPix, int index);
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void (*FinishAccess)(PixmapPtr pPix, int index);
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#define EXA_PREPARE_DEST 0
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#define EXA_PREPARE_SRC 1
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#define EXA_PREPARE_MASK 2
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} ExaAccelInfoRec, *ExaAccelInfoPtr;
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typedef struct _ExaDriver {
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ExaCardInfoRec card;
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ExaAccelInfoRec accel;
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} ExaDriverRec, *ExaDriverPtr;
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#define EXA_OFFSCREEN_PIXMAPS (1 << 0)
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#define EXA_OFFSCREEN_ALIGN_POT (1 << 1)
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#define EXA_MAKE_VERSION(a, b, c) (((a) << 16) | ((b) << 8) | (c))
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#define EXA_VERSION \
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EXA_MAKE_VERSION(EXA_VERSION_MAJOR, EXA_VERSION_MINOR, EXA_VERSION_RELEASE)
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#define EXA_IS_VERSION(a,b,c) (EXA_VERSION >= EXA_MAKE_VERSION(a,b,c))
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unsigned int
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exaGetVersion(void);
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Bool
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exaDriverInit(ScreenPtr pScreen,
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ExaDriverPtr pScreenInfo);
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void
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exaDriverFini(ScreenPtr pScreen);
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void
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exaMarkSync(ScreenPtr pScreen);
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void
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exaWaitSync(ScreenPtr pScreen);
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Bool
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exaOffscreenInit(ScreenPtr pScreen);
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ExaOffscreenArea *
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exaOffscreenAlloc(ScreenPtr pScreen, int size, int align,
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Bool locked,
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ExaOffscreenSaveProc save,
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pointer privData);
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ExaOffscreenArea *
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exaOffscreenFree(ScreenPtr pScreen, ExaOffscreenArea *area);
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unsigned long
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exaGetPixmapOffset(PixmapPtr pPix);
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unsigned long
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exaGetPixmapPitch(PixmapPtr pPix);
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unsigned long
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exaGetPixmapSize(PixmapPtr pPix);
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#define exaInitCard(exa, sync, memory_base, off_screen_base, memory_size, \
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offscreen_byte_align, offscreen_pitch, flags, \
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max_x, max_y) \
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(exa)->card.Sync = sync; \
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(exa)->card.memoryBase = memory_base; \
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(exa)->card.offScreenBase = off_screen_base; \
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(exa)->card.memorySize = memory_size; \
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(exa)->card.offscreenByteAlign = offscreen_byte_align; \
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(exa)->card.offscreenPitch = offscreen_pitch; \
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(exa)->card.flags = flags; \
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(exa)->card.maxX = max_x; \
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(exa)->card.maxY = max_y
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#endif /* EXA_H */
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