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Diffstat (limited to 'exa/exa_mixed.c')
| -rw-r--r-- | exa/exa_mixed.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/exa/exa_mixed.c b/exa/exa_mixed.c new file mode 100644 index 000000000..01f87ba87 --- /dev/null +++ b/exa/exa_mixed.c @@ -0,0 +1,251 @@ +/* + * 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 + better initial placement code. + * A pinned pixmap implies one that is either driver based already or otherwise altered. + * Proper care is taken to free the initially allocated buffer. + */ + +static _X_INLINE void* +ExaGetPixmapAddress(PixmapPtr p) +{ + ExaPixmapPriv(p); + + return pExaPixmap->sys_ptr; +} + +/** + * exaCreatePixmap() creates a new pixmap. + * + * Pixmaps are always marked as pinned, unless the pixmap can still be transfered to a + * driver pixmaps. + */ +PixmapPtr +exaCreatePixmap_mixed(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; + + paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits); + if (paddedWidth / 4 > 32767 || h > 32767) + return NullPixmap; + + datasize = h * paddedWidth; + + /* We will allocate the system pixmap later if needed. */ + pPixmap->devPrivate.ptr = NULL; + pExaPixmap->sys_ptr = NULL; + pExaPixmap->sys_pitch = paddedWidth; + + pExaPixmap->area = NULL; + pExaPixmap->offscreen = FALSE; + pExaPixmap->fb_ptr = NULL; + pExaPixmap->pDamage = NULL; + + exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp); + exaSetAccelBlock(pExaScr, pExaPixmap, + w, h, bpp); + + /* Avoid freeing sys_ptr. */ + pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED; + + (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0, + paddedWidth, NULL); + + /* We want to be able to transfer the pixmap to driver memory later on. */ + pExaPixmap->score = EXA_PIXMAP_SCORE_INIT; + + /* A scratch pixmap will become a driver pixmap right away. */ + if (!w || !h) { + exaCreateDriverPixmap_mixed(pPixmap); + } else { + /* Set up damage tracking */ + pExaPixmap->pDamage = DamageCreate (NULL, NULL, + DamageReportNone, TRUE, + pScreen, pPixmap); + + if (pExaPixmap->pDamage == NULL) { + swap(pExaScr, pScreen, DestroyPixmap); + pScreen->DestroyPixmap (pPixmap); + swap(pExaScr, pScreen, DestroyPixmap); + return NULL; + } + + DamageRegister (&pPixmap->drawable, pExaPixmap->pDamage); + /* This ensures that pending damage reflects the current operation. */ + /* This is used by exa to optimize migration. */ + DamageSetReportAfterOp (pExaPixmap->pDamage, TRUE); + } + + return pPixmap; +} + +Bool +exaModifyPixmapHeader_mixed(PixmapPtr pPixmap, int width, int height, int depth, + int bitsPerPixel, int devKind, pointer pPixData) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPrivPtr pExaScr; + ExaPixmapPrivPtr pExaPixmap; + Bool ret; + + if (!pPixmap) + return FALSE; + + pExaScr = ExaGetScreenPriv(pScreen); + pExaPixmap = ExaGetPixmapPriv(pPixmap); + + if (pExaPixmap) { + if (!exaPixmapIsPinned(pPixmap)) { + free(pExaPixmap->sys_ptr); + pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr = NULL; + pExaPixmap->sys_pitch = pPixmap->devKind = 0; + + /* We no longer need this. */ + if (pExaPixmap->pDamage) { + DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage); + DamageDestroy(pExaPixmap->pDamage); + pExaPixmap->pDamage = NULL; + } + } + + 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); + } + + /* Anything can happen, don't try to predict it all. */ + pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED; + } + + /* Only pass driver pixmaps to the driver. */ + if (pExaScr->info->ModifyPixmapHeader && pExaPixmap->driverPriv) { + 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 non-offscreen 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_mixed(PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + Bool ret; + + if (pPixmap->refcnt == 1) + { + ExaPixmapPriv (pPixmap); + + if (pExaPixmap->driverPriv) + pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv); + else if (pExaPixmap->sys_ptr && !exaPixmapIsPinned(pPixmap)) + free(pExaPixmap->sys_ptr); + pExaPixmap->driverPriv = NULL; + pExaPixmap->sys_ptr = NULL; + } + + swap(pExaScr, pScreen, DestroyPixmap); + ret = pScreen->DestroyPixmap (pPixmap); + swap(pExaScr, pScreen, DestroyPixmap); + + return ret; +} + +Bool +exaPixmapIsOffscreen_mixed(PixmapPtr pPixmap) +{ + ScreenPtr pScreen = pPixmap->drawable.pScreen; + ExaScreenPriv(pScreen); + ExaPixmapPriv(pPixmap); + pointer saved_ptr; + Bool ret; + + if (!pExaPixmap->driverPriv) + return FALSE; + + saved_ptr = pPixmap->devPrivate.ptr; + pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap); + ret = pExaScr->info->PixmapIsOffscreen(pPixmap); + pPixmap->devPrivate.ptr = saved_ptr; + + return ret; +} |