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IABSD.fr/xenocara/xserver/exa/exa_driver.c
matthieu
- xserver/exa/exa_driver.c
-
/* * Copyright © 2009 Maarten Maathuis * * 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. * */ #ifdef HAVE_DIX_CONFIG_H #include <dix-config.h> #endif #include <string.h> #include "exa_priv.h" #include "exa.h" /* This file holds the driver allocated pixmaps specific implementation. */ static _X_INLINE void * ExaGetPixmapAddress(PixmapPtr p) { ExaPixmapPriv(p); return pExaPixmap->sys_ptr; } /** * exaCreatePixmap() creates a new pixmap. * * Pixmaps are always marked as pinned, because exa has no control over them. */ PixmapPtr exaCreatePixmap_driver(ScreenPtr pScreen, int w, int h, int depth, unsigned usage_hint) { PixmapPtr pPixmap; ExaPixmapPrivPtr pExaPixmap; int bpp; size_t paddedWidth, datasize; ExaScreenPriv(pScreen); if (w > 32767 || h > 32767) return NullPixmap; swap(pExaScr, pScreen, CreatePixmap); pPixmap = pScreen->CreatePixmap(pScreen, 0, 0, depth, usage_hint); swap(pExaScr, pScreen, CreatePixmap); if (!pPixmap) return NULL; pExaPixmap = ExaGetPixmapPriv(pPixmap); pExaPixmap->driverPriv = NULL; bpp = pPixmap->drawable.bitsPerPixel; /* Set this before driver hooks, to allow for driver pixmaps without gpu * memory to back it. These pixmaps have a valid pointer at all times. */ pPixmap->devPrivate.ptr = NULL; if (pExaScr->info->CreatePixmap2) { int new_pitch = 0; pExaPixmap->driverPriv = pExaScr->info->CreatePixmap2(pScreen, w, h, depth, usage_hint, bpp, &new_pitch); paddedWidth = pExaPixmap->fb_pitch = new_pitch; } else { paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits); if (paddedWidth / 4 > 32767 || h > 32767) return NullPixmap; exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp); if (paddedWidth < pExaPixmap->fb_pitch) paddedWidth = pExaPixmap->fb_pitch; datasize = h * paddedWidth; pExaPixmap->driverPriv = pExaScr->info->CreatePixmap(pScreen, datasize, 0); } if (!pExaPixmap->driverPriv) { swap(pExaScr, pScreen, DestroyPixmap); pScreen->DestroyPixmap(pPixmap); swap(pExaScr, pScreen, DestroyPixmap); return NULL; } /* Allow ModifyPixmapHeader to set sys_ptr appropriately. */ pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED; pExaPixmap->fb_ptr = NULL; pExaPixmap->pDamage = NULL; pExaPixmap->sys_ptr = NULL; (*pScreen->ModifyPixmapHeader) (pPixmap, w, h, 0, 0, paddedWidth, NULL); pExaPixmap->area = NULL; exaSetAccelBlock(pExaScr, pExaPixmap, w, h, bpp); pExaPixmap->use_gpu_copy = exaPixmapHasGpuCopy(pPixmap); /* During a fallback we must prepare access. */ if (pExaScr->fallback_counter) exaPrepareAccess(&pPixmap->drawable, EXA_PREPARE_AUX_DEST); return pPixmap; } Bool exaModifyPixmapHeader_driver(PixmapPtr pPixmap, int width, int height, int depth, int bitsPerPixel, int devKind, void *pPixData) { ScreenPtr pScreen; ExaScreenPrivPtr pExaScr; ExaPixmapPrivPtr pExaPixmap; Bool ret; if (!pPixmap) return FALSE; pScreen = pPixmap->drawable.pScreen; pExaScr = ExaGetScreenPriv(pScreen); pExaPixmap = ExaGetPixmapPriv(pPixmap); if (pExaPixmap) { if (pPixData) pExaPixmap->sys_ptr = pPixData; if (devKind > 0) pExaPixmap->sys_pitch = devKind; if (width > 0 && height > 0 && bitsPerPixel > 0) { exaSetFbPitch(pExaScr, pExaPixmap, width, height, bitsPerPixel); exaSetAccelBlock(pExaScr, pExaPixmap, width, height, bitsPerPixel); } } if (pExaScr->info->ModifyPixmapHeader) { ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth, bitsPerPixel, devKind, pPixData); /* For EXA_HANDLES_PIXMAPS, we set pPixData to NULL. * If pPixmap->devPrivate.ptr is non-NULL, then we've got a * !has_gpu_copy pixmap. We need to store the pointer, * because PrepareAccess won't be called. */ if (!pPixData && pPixmap->devPrivate.ptr && pPixmap->devKind) { pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr; pExaPixmap->sys_pitch = pPixmap->devKind; } if (ret == TRUE) goto out; } swap(pExaScr, pScreen, ModifyPixmapHeader); ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth, bitsPerPixel, devKind, pPixData); swap(pExaScr, pScreen, ModifyPixmapHeader); out: /* Always NULL this, we don't want lingering pointers. */ pPixmap->devPrivate.ptr = NULL; return ret; } Bool exaDestroyPixmap_driver(PixmapPtr pPixmap) { ScreenPtr pScreen = pPixmap->drawable.pScreen; ExaScreenPriv(pScreen); Bool ret; if (pPixmap->refcnt == 1) { ExaPixmapPriv(pPixmap); exaDestroyPixmap(pPixmap); if (pExaPixmap->driverPriv) pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv); pExaPixmap->driverPriv = NULL; } swap(pExaScr, pScreen, DestroyPixmap); ret = pScreen->DestroyPixmap(pPixmap); swap(pExaScr, pScreen, DestroyPixmap); return ret; } Bool exaPixmapHasGpuCopy_driver(PixmapPtr pPixmap) { ScreenPtr pScreen = pPixmap->drawable.pScreen; ExaScreenPriv(pScreen); void *saved_ptr; Bool ret; saved_ptr = pPixmap->devPrivate.ptr; pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap); ret = pExaScr->info->PixmapIsOffscreen(pPixmap); pPixmap->devPrivate.ptr = saved_ptr; return ret; }