ac7ac913fd
- Create a few seperate functions and a few private function pointers. - Replace a few if conditions with a check for pExaPix->pDamage instead. - This is in preperation of a third scheme that lies somewhere in between. - Code clarity would have suffered (i started working on it and didn't like the mess).
259 lines
7.5 KiB
C
259 lines
7.5 KiB
C
/*
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* Copyright © 2009 Maarten Maathuis
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#include <string.h>
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#include "exa_priv.h"
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#include "exa.h"
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/* This file holds the classic exa specific implementation. */
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static _X_INLINE void*
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ExaGetPixmapAddress(PixmapPtr p)
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{
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ExaPixmapPriv(p);
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if (pExaPixmap->offscreen && pExaPixmap->fb_ptr)
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return pExaPixmap->fb_ptr;
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else
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return pExaPixmap->sys_ptr;
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}
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/**
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* exaCreatePixmap() creates a new pixmap.
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*
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* If width and height are 0, this won't be a full-fledged pixmap and it will
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* get ModifyPixmapHeader() called on it later. So, we mark it as pinned, because
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* ModifyPixmapHeader() would break migration. These types of pixmaps are used
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* for scratch pixmaps, or to represent the visible screen.
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*/
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PixmapPtr
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exaCreatePixmap_classic(ScreenPtr pScreen, int w, int h, int depth,
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unsigned usage_hint)
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{
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PixmapPtr pPixmap;
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ExaPixmapPrivPtr pExaPixmap;
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BoxRec box;
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int bpp;
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ExaScreenPriv(pScreen);
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if (w > 32767 || h > 32767)
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return NullPixmap;
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swap(pExaScr, pScreen, CreatePixmap);
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pPixmap = pScreen->CreatePixmap (pScreen, w, h, depth, usage_hint);
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swap(pExaScr, pScreen, CreatePixmap);
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if (!pPixmap)
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return NULL;
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pExaPixmap = ExaGetPixmapPriv(pPixmap);
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pExaPixmap->driverPriv = NULL;
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bpp = pPixmap->drawable.bitsPerPixel;
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pExaPixmap->driverPriv = NULL;
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/* Scratch pixmaps may have w/h equal to zero, and may not be
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* migrated.
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*/
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if (!w || !h)
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pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
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else
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pExaPixmap->score = EXA_PIXMAP_SCORE_INIT;
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pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
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pExaPixmap->sys_pitch = pPixmap->devKind;
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pPixmap->devPrivate.ptr = NULL;
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pExaPixmap->offscreen = FALSE;
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pExaPixmap->fb_ptr = NULL;
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exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);
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pExaPixmap->fb_size = pExaPixmap->fb_pitch * h;
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if (pExaPixmap->fb_pitch > 131071) {
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swap(pExaScr, pScreen, DestroyPixmap);
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pScreen->DestroyPixmap (pPixmap);
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swap(pExaScr, pScreen, DestroyPixmap);
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return NULL;
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}
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/* Set up damage tracking */
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pExaPixmap->pDamage = DamageCreate (NULL, NULL,
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DamageReportNone, TRUE,
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pScreen, pPixmap);
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if (pExaPixmap->pDamage == NULL) {
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swap(pExaScr, pScreen, DestroyPixmap);
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pScreen->DestroyPixmap (pPixmap);
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swap(pExaScr, pScreen, DestroyPixmap);
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return NULL;
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}
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DamageRegister (&pPixmap->drawable, pExaPixmap->pDamage);
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/* This ensures that pending damage reflects the current operation. */
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/* This is used by exa to optimize migration. */
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DamageSetReportAfterOp (pExaPixmap->pDamage, TRUE);
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pExaPixmap->area = NULL;
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/* We set the initial pixmap as completely valid for a simple reason.
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* Imagine a 1000x1000 pixmap, it has 1 million pixels, 250000 of which
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* could form single pixel rects as part of a region. Setting the complete region
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* as valid is a natural defragmentation of the region.
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*/
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box.x1 = 0;
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box.y1 = 0;
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box.x2 = w;
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box.y2 = h;
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REGION_INIT(pScreen, &pExaPixmap->validSys, &box, 0);
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REGION_INIT(pScreen, &pExaPixmap->validFB, &box, 0);
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exaSetAccelBlock(pExaScr, pExaPixmap,
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w, h, bpp);
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return pPixmap;
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}
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Bool
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exaModifyPixmapHeader_classic(PixmapPtr pPixmap, int width, int height, int depth,
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int bitsPerPixel, int devKind, pointer pPixData)
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{
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ScreenPtr pScreen = pPixmap->drawable.pScreen;
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ExaScreenPrivPtr pExaScr;
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ExaPixmapPrivPtr pExaPixmap;
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Bool ret;
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if (!pPixmap)
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return FALSE;
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pExaScr = ExaGetScreenPriv(pScreen);
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pExaPixmap = ExaGetPixmapPriv(pPixmap);
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if (pExaPixmap) {
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if (pPixData)
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pExaPixmap->sys_ptr = pPixData;
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if (devKind > 0)
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pExaPixmap->sys_pitch = devKind;
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/* Classic EXA:
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* - Framebuffer.
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* - Scratch pixmap with offscreen memory.
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*/
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if (pExaScr->info->memoryBase && pPixData) {
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if ((CARD8 *)pPixData >= pExaScr->info->memoryBase &&
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((CARD8 *)pPixData - pExaScr->info->memoryBase) <
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pExaScr->info->memorySize) {
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pExaPixmap->fb_ptr = pPixData;
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pExaPixmap->fb_pitch = devKind;
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pExaPixmap->offscreen = TRUE;
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}
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}
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if (width > 0 && height > 0 && bitsPerPixel > 0) {
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exaSetFbPitch(pExaScr, pExaPixmap,
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width, height, bitsPerPixel);
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exaSetAccelBlock(pExaScr, pExaPixmap,
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width, height, bitsPerPixel);
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}
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/* Pixmaps subject to ModifyPixmapHeader will be pinned to system or
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* offscreen memory, so there's no need to track damage.
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*/
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if (pExaPixmap->pDamage) {
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DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);
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DamageDestroy(pExaPixmap->pDamage);
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pExaPixmap->pDamage = NULL;
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}
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}
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swap(pExaScr, pScreen, ModifyPixmapHeader);
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ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth,
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bitsPerPixel, devKind, pPixData);
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swap(pExaScr, pScreen, ModifyPixmapHeader);
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/* Always NULL this, we don't want lingering pointers. */
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pPixmap->devPrivate.ptr = NULL;
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return ret;
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}
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Bool
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exaDestroyPixmap_classic (PixmapPtr pPixmap)
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{
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ScreenPtr pScreen = pPixmap->drawable.pScreen;
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ExaScreenPriv(pScreen);
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Bool ret;
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if (pPixmap->refcnt == 1)
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{
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ExaPixmapPriv (pPixmap);
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if (pExaPixmap->area)
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{
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DBG_PIXMAP(("-- 0x%p (0x%x) (%dx%d)\n",
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(void*)pPixmap->drawable.id,
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ExaGetPixmapPriv(pPixmap)->area->offset,
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pPixmap->drawable.width,
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pPixmap->drawable.height));
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/* Free the offscreen area */
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exaOffscreenFree (pPixmap->drawable.pScreen, pExaPixmap->area);
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pPixmap->devPrivate.ptr = pExaPixmap->sys_ptr;
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pPixmap->devKind = pExaPixmap->sys_pitch;
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}
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REGION_UNINIT(pPixmap->drawable.pScreen, &pExaPixmap->validSys);
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REGION_UNINIT(pPixmap->drawable.pScreen, &pExaPixmap->validFB);
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}
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swap(pExaScr, pScreen, DestroyPixmap);
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ret = pScreen->DestroyPixmap (pPixmap);
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swap(pExaScr, pScreen, DestroyPixmap);
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return ret;
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}
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Bool
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exaPixmapIsOffscreen_classic(PixmapPtr pPixmap)
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{
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ScreenPtr pScreen = pPixmap->drawable.pScreen;
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ExaScreenPriv(pScreen);
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ExaPixmapPriv(pPixmap);
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Bool ret;
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if (pExaScr->info->PixmapIsOffscreen) {
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pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap);
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ret = pExaScr->info->PixmapIsOffscreen(pPixmap);
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pPixmap->devPrivate.ptr = NULL;
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} else
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ret = (pExaPixmap->offscreen && pExaPixmap->fb_ptr);
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return ret;
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}
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