110 lines
3.4 KiB
C
110 lines
3.4 KiB
C
/*
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* Copyright © 2008 Intel Corporation
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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
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*
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* Authors:
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* Eric Anholt <eric@anholt.net>
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*
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*/
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/** @file glamor.c
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* This file covers the initialization and teardown of glamor, and has various
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* functions not responsible for performing rendering.
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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 <stdlib.h>
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#include "glamor_priv.h"
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static int glamor_screen_private_key_index;
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DevPrivateKey glamor_screen_private_key = &glamor_screen_private_key_index;
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/**
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* glamor_get_drawable_pixmap() returns a backing pixmap for a given drawable.
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*
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* @param drawable the drawable being requested.
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*
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* This function returns the backing pixmap for a drawable, whether it is a
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* redirected window, unredirected window, or already a pixmap. Note that
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* coordinate translation is needed when drawing to the backing pixmap of a
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* redirected window, and the translation coordinates are provided by calling
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* exaGetOffscreenPixmap() on the drawable.
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*/
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PixmapPtr
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glamor_get_drawable_pixmap(DrawablePtr drawable)
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{
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if (drawable->type == DRAWABLE_WINDOW)
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return drawable->pScreen->GetWindowPixmap((WindowPtr)drawable);
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else
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return (PixmapPtr)drawable;
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}
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static PixmapPtr
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glamor_create_pixmap(ScreenPtr screen, int w, int h, int depth,
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unsigned int usage_hint)
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{
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return fbCreatePixmap(screen, w, h, depth, usage_hint);
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}
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static Bool
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glamor_destroy_pixmap(PixmapPtr pixmap)
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{
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return fbDestroyPixmap(pixmap);
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}
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/** Set up glamor for an already-configured GL context. */
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Bool
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glamor_init(ScreenPtr screen)
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{
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glamor_screen_private *glamor_priv;
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glamor_priv = xcalloc(1, sizeof(*glamor_priv));
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if (glamor_priv == NULL)
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return FALSE;
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dixSetPrivate(&screen->devPrivates, glamor_screen_private_key, glamor_priv);
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glamor_priv->saved_create_gc = screen->CreateGC;
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screen->CreateGC = glamor_create_gc;
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glamor_priv->saved_create_pixmap = screen->CreatePixmap;
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screen->CreatePixmap = glamor_create_pixmap;
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glamor_priv->saved_destroy_pixmap = screen->DestroyPixmap;
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screen->DestroyPixmap = glamor_destroy_pixmap;
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return TRUE;
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}
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void
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glamor_fini(ScreenPtr screen)
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{
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glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
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screen->CreateGC = glamor_priv->saved_create_gc;
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screen->CreatePixmap = glamor_priv->saved_create_pixmap;
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screen->DestroyPixmap = glamor_priv->saved_destroy_pixmap;
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}
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