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/* -*- mode: C; c-file-style: "k&r"; tab-width 4; indent-tabs-mode: t; -*- */
/*
* Copyright © 2011 Texas Instruments, Inc
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Authors:
* Rob Clark <rob@ti.com>
*/
#ifndef ARMSOC_EXA_COMMON_H_
#define ARMSOC_EXA_COMMON_H_
/* note: don't include "armsoc_driver.h" here.. we want to keep some
* isolation between structs shared with submodules and stuff internal
* to core driver..
*/
#include "armsoc_dumb.h"
#include "xf86.h"
#include "xf86_OSproc.h"
#include "exa.h"
#include "compat-api.h"
/**
* A per-Screen structure used to communicate and coordinate between the
* ARMSOC X driver and an external EXA sub-module (if loaded).
*/
struct ARMSOCEXARec {
/**
* Called by X driver's CloseScreen() function at the end of each server
* generation to free per-Screen data structures (except those held by
* pScrn).
*/
Bool (*CloseScreen)(CLOSE_SCREEN_ARGS_DECL);
/**
* Called by X driver's FreeScreen() function at the end of each
* server lifetime to free per-ScrnInfoRec data structures, to close
* any external connections (e.g. with PVR2D, DRM), etc.
*/
void (*FreeScreen)(FREE_SCREEN_ARGS_DECL);
/* add new fields here at end, to preserve ABI */
};
/**
* Fallback EXA implementation
*/
struct ARMSOCEXARec *InitNullEXA(ScreenPtr pScreen, ScrnInfoPtr pScrn, int fd);
struct ARMSOCEXARec *ARMSOCEXAPTR(ScrnInfoPtr pScrn);
static inline ScrnInfoPtr
pix2scrn(PixmapPtr pPixmap)
{
ScreenPtr pScreen = (pPixmap)->drawable.pScreen;
return xf86ScreenToScrn(pScreen);
}
static inline PixmapPtr
draw2pix(DrawablePtr pDraw)
{
if (!pDraw)
return NULL;
else if (pDraw->type == DRAWABLE_WINDOW)
return pDraw->pScreen->GetWindowPixmap((WindowPtr)pDraw);
else
return (PixmapPtr)pDraw;
}
/* Common ARMSOC EXA functions, mostly related to pixmap/buffer allocation.
* Individual driver submodules can use these directly, or wrap them with
* there own functions if anything additional is required. Submodules
* can use ARMSOCPrixmapPrivPtr#priv for their own private data.
*/
struct ARMSOCPixmapPrivRec {
/* EXA submodule private data */
void *priv;
/* Ref-count of DRI2Buffers that wrap the Pixmap,
* that allow external access to the underlying
* buffer. When >0 CPU access must be synchronised.
*/
int ext_access_cnt;
struct armsoc_bo *bo;
int usage_hint;
};
#define ARMSOC_CREATE_PIXMAP_SCANOUT 0x80000000
void *ARMSOCCreatePixmap2(ScreenPtr pScreen, int width, int height,
int depth, int usage_hint, int bitsPerPixel,
int *new_fb_pitch);
void ARMSOCDestroyPixmap(ScreenPtr pScreen, void *driverPriv);
Bool ARMSOCModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
int depth, int bitsPerPixel, int devKind,
pointer pPixData);
void ARMSOCWaitMarker(ScreenPtr pScreen, int marker);
Bool ARMSOCPrepareAccess(PixmapPtr pPixmap, int index);
void ARMSOCFinishAccess(PixmapPtr pPixmap, int index);
Bool ARMSOCPixmapIsOffscreen(PixmapPtr pPixmap);
static inline struct armsoc_bo *
ARMSOCPixmapBo(PixmapPtr pPixmap)
{
struct ARMSOCPixmapPrivRec *priv = exaGetPixmapDriverPrivate(pPixmap);
return priv->bo;
}
void ARMSOCPixmapExchange(PixmapPtr a, PixmapPtr b);
/* Register that the pixmap can be accessed externally, so
* CPU access must be synchronised. */
void ARMSOCRegisterExternalAccess(PixmapPtr pPixmap);
void ARMSOCDeregisterExternalAccess(PixmapPtr pPixmap);
#endif /* ARMSOC_EXA_COMMON_H_ */
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