[deb_xorg-server.git] / hw / xquartz / xpr / driWrap.c

/*
 * Copyright (c) 2009-2012 Apple Inc. All rights reserved.
 *
 * 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 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 ABOVE LISTED COPYRIGHT
 * HOLDER(S) 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.
 *
 * Except as contained in this notice, the name(s) of the above
 * copyright holders shall not be used in advertising or otherwise to
 * promote the sale, use or other dealings in this Software without
 * prior written authorization.
 */

#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif

#include <stddef.h>
#include "mi.h"
#include "scrnintstr.h"
#include "gcstruct.h"
#include "pixmapstr.h"
#include "windowstr.h"
#include "dixfontstr.h"
#include "mivalidate.h"
#include "driWrap.h"
#include "dri.h"

#include <OpenGL/OpenGL.h>

typedef struct {
    GCOps *originalOps;
} DRIGCRec;

typedef struct {
    GCOps *originalOps;
    CreateGCProcPtr CreateGC;
} DRIWrapScreenRec;

typedef struct {
    Bool didSave;
    int devKind;
    DevUnion devPrivate;
} DRISavedDrawableState;

static DevPrivateKeyRec driGCKeyRec;
#define driGCKey (&driGCKeyRec)

static DevPrivateKeyRec driWrapScreenKeyRec;
#define driWrapScreenKey (&driWrapScreenKeyRec)

static GCOps driGCOps;

#define wrap(priv, real, member, func) { \
        priv->member = real->member; \
        real->member = func; \
}

#define unwrap(priv, real, member)     { \
        real->member = priv->member; \
}

static DRIGCRec *
DRIGetGCPriv(GCPtr pGC)
{
    return dixLookupPrivate(&pGC->devPrivates, driGCKey);
}

static void
DRIUnwrapGC(GCPtr pGC)
{
    DRIGCRec *pGCPriv = DRIGetGCPriv(pGC);

    pGC->ops = pGCPriv->originalOps;
}

static void
DRIWrapGC(GCPtr pGC)
{
    pGC->ops = &driGCOps;
}

static void
DRISurfaceSetDrawable(DrawablePtr pDraw,
                      DRISavedDrawableState *saved)
{
    saved->didSave = FALSE;

    if (pDraw->type == DRAWABLE_PIXMAP) {
        int pitch, width, height, bpp;
        void *buffer;

        if (DRIGetPixmapData(pDraw, &width, &height, &pitch, &bpp,
                             &buffer)) {
            PixmapPtr pPix = (PixmapPtr)pDraw;

            saved->devKind = pPix->devKind;
            saved->devPrivate.ptr = pPix->devPrivate.ptr;
            saved->didSave = TRUE;

            pPix->devKind = pitch;
            pPix->devPrivate.ptr = buffer;
        }
    }
}

static void
DRISurfaceRestoreDrawable(DrawablePtr pDraw,
                          DRISavedDrawableState *saved)
{
    PixmapPtr pPix = (PixmapPtr)pDraw;

    if (!saved->didSave)
        return;

    pPix->devKind = saved->devKind;
    pPix->devPrivate.ptr = saved->devPrivate.ptr;
}

static void
DRIFillSpans(DrawablePtr dst, GCPtr pGC, int nInit,
             DDXPointPtr pptInit, int *pwidthInit,
             int sorted)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->FillSpans(dst, pGC, nInit, pptInit, pwidthInit, sorted);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRISetSpans(DrawablePtr dst, GCPtr pGC, char *pSrc,
            DDXPointPtr pptInit, int *pwidthInit,
            int nspans, int sorted)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->SetSpans(dst, pGC, pSrc, pptInit, pwidthInit, nspans, sorted);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRIPutImage(DrawablePtr dst, GCPtr pGC,
            int depth, int x, int y, int w, int h,
            int leftPad, int format, char *pBits)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->PutImage(dst, pGC, depth, x, y, w, h, leftPad, format, pBits);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static RegionPtr
DRICopyArea(DrawablePtr pSrc, DrawablePtr dst, GCPtr pGC,
            int srcx, int srcy, int w, int h,
            int dstx, int dsty)
{
    RegionPtr pReg;
    DRISavedDrawableState pSrcSaved, dstSaved;

    DRISurfaceSetDrawable(pSrc, &pSrcSaved);
    DRISurfaceSetDrawable(dst, &dstSaved);

    DRIUnwrapGC(pGC);

    pReg = pGC->ops->CopyArea(pSrc, dst, pGC, srcx, srcy, w, h, dstx, dsty);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(pSrc, &pSrcSaved);
    DRISurfaceRestoreDrawable(dst, &dstSaved);

    return pReg;
}

static RegionPtr
DRICopyPlane(DrawablePtr pSrc, DrawablePtr dst,
             GCPtr pGC, int srcx, int srcy,
             int w, int h, int dstx, int dsty,
             unsigned long plane)
{
    RegionPtr pReg;
    DRISavedDrawableState pSrcSaved, dstSaved;

    DRISurfaceSetDrawable(pSrc, &pSrcSaved);
    DRISurfaceSetDrawable(dst, &dstSaved);

    DRIUnwrapGC(pGC);

    pReg = pGC->ops->CopyPlane(pSrc, dst, pGC, srcx, srcy, w, h, dstx, dsty,
                               plane);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(pSrc, &pSrcSaved);
    DRISurfaceRestoreDrawable(dst, &dstSaved);

    return pReg;
}

static void
DRIPolyPoint(DrawablePtr dst, GCPtr pGC,
             int mode, int npt, DDXPointPtr pptInit)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->PolyPoint(dst, pGC, mode, npt, pptInit);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRIPolylines(DrawablePtr dst, GCPtr pGC,
             int mode, int npt, DDXPointPtr pptInit)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->Polylines(dst, pGC, mode, npt, pptInit);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRIPolySegment(DrawablePtr dst, GCPtr pGC,
               int nseg, xSegment *pSeg)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->PolySegment(dst, pGC, nseg, pSeg);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRIPolyRectangle(DrawablePtr dst, GCPtr pGC,
                 int nRects, xRectangle *pRects)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->PolyRectangle(dst, pGC, nRects, pRects);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}
static void
DRIPolyArc(DrawablePtr dst, GCPtr pGC, int narcs, xArc *parcs)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->PolyArc(dst, pGC, narcs, parcs);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRIFillPolygon(DrawablePtr dst, GCPtr pGC,
               int shape, int mode, int count,
               DDXPointPtr pptInit)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->FillPolygon(dst, pGC, shape, mode, count, pptInit);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRIPolyFillRect(DrawablePtr dst, GCPtr pGC,
                int nRectsInit, xRectangle *pRectsInit)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->PolyFillRect(dst, pGC, nRectsInit, pRectsInit);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRIPolyFillArc(DrawablePtr dst, GCPtr pGC,
               int narcsInit, xArc *parcsInit)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->PolyFillArc(dst, pGC, narcsInit, parcsInit);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static int
DRIPolyText8(DrawablePtr dst, GCPtr pGC,
             int x, int y, int count, char *chars)
{
    int ret;
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    ret = pGC->ops->PolyText8(dst, pGC, x, y, count, chars);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);

    return ret;
}

static int
DRIPolyText16(DrawablePtr dst, GCPtr pGC,
              int x, int y, int count, unsigned short *chars)
{
    int ret;
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    ret = pGC->ops->PolyText16(dst, pGC, x, y, count, chars);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);

    return ret;
}

static void
DRIImageText8(DrawablePtr dst, GCPtr pGC,
              int x, int y, int count, char *chars)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->ImageText8(dst, pGC, x, y, count, chars);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRIImageText16(DrawablePtr dst, GCPtr pGC,
               int x, int y, int count, unsigned short *chars)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->ImageText16(dst, pGC, x, y, count, chars);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRIImageGlyphBlt(DrawablePtr dst, GCPtr pGC,
                 int x, int y, unsigned int nglyphInit,
                 CharInfoPtr *ppciInit, pointer unused)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->ImageGlyphBlt(dst, pGC, x, y, nglyphInit, ppciInit, unused);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRIPolyGlyphBlt(DrawablePtr dst, GCPtr pGC,
                int x, int y, unsigned int nglyph,
                CharInfoPtr *ppci, pointer pglyphBase)
{
    DRISavedDrawableState saved;

    DRISurfaceSetDrawable(dst, &saved);

    DRIUnwrapGC(pGC);

    pGC->ops->PolyGlyphBlt(dst, pGC, x, y, nglyph, ppci, pglyphBase);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(dst, &saved);
}

static void
DRIPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr dst,
              int dx, int dy, int xOrg, int yOrg)
{
    DRISavedDrawableState bitMapSaved, dstSaved;

    DRISurfaceSetDrawable(&pBitMap->drawable, &bitMapSaved);
    DRISurfaceSetDrawable(dst, &dstSaved);

    DRIUnwrapGC(pGC);

    pGC->ops->PushPixels(pGC, pBitMap, dst, dx, dy, xOrg, yOrg);

    DRIWrapGC(pGC);

    DRISurfaceRestoreDrawable(&pBitMap->drawable, &bitMapSaved);
    DRISurfaceRestoreDrawable(dst, &dstSaved);
}

static GCOps driGCOps = {
    DRIFillSpans,
    DRISetSpans,
    DRIPutImage,
    DRICopyArea,
    DRICopyPlane,
    DRIPolyPoint,
    DRIPolylines,
    DRIPolySegment,
    DRIPolyRectangle,
    DRIPolyArc,
    DRIFillPolygon,
    DRIPolyFillRect,
    DRIPolyFillArc,
    DRIPolyText8,
    DRIPolyText16,
    DRIImageText8,
    DRIImageText16,
    DRIImageGlyphBlt,
    DRIPolyGlyphBlt,
    DRIPushPixels
};

static Bool
DRICreateGC(GCPtr pGC)
{
    ScreenPtr pScreen = pGC->pScreen;
    DRIWrapScreenRec *pScreenPriv;
    DRIGCRec *pGCPriv;
    Bool ret;

    pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, driWrapScreenKey);

    pGCPriv = DRIGetGCPriv(pGC);

    unwrap(pScreenPriv, pScreen, CreateGC);
    ret = pScreen->CreateGC(pGC);

    if (ret) {
        pGCPriv->originalOps = pGC->ops;
        pGC->ops = &driGCOps;
    }

    wrap(pScreenPriv, pScreen, CreateGC, DRICreateGC);

    return ret;
}

/* Return false if an error occurred. */
Bool
DRIWrapInit(ScreenPtr pScreen)
{
    DRIWrapScreenRec *pScreenPriv;

    if (!dixRegisterPrivateKey(&driGCKeyRec, PRIVATE_GC, sizeof(DRIGCRec)))
        return FALSE;

    if (!dixRegisterPrivateKey(&driWrapScreenKeyRec, PRIVATE_SCREEN,
                               sizeof(DRIWrapScreenRec)))
        return FALSE;

    pScreenPriv = dixGetPrivateAddr(&pScreen->devPrivates,
                                    &driWrapScreenKeyRec);
    pScreenPriv->CreateGC = pScreen->CreateGC;
    pScreen->CreateGC = DRICreateGC;

    return TRUE;
}
Commit	Line	Data
a09e091a JB	1	/*
	2	* Copyright (c) 2009-2012 Apple Inc. All rights reserved.
	3	*
	4	* Permission is hereby granted, free of charge, to any person
	5	* obtaining a copy of this software and associated documentation files
	6	* (the "Software"), to deal in the Software without restriction,
	7	* including without limitation the rights to use, copy, modify, merge,
	8	* publish, distribute, sublicense, and/or sell copies of the Software,
	9	* and to permit persons to whom the Software is furnished to do so,
	10	* subject to the following conditions:
	11	*
	12	* The above copyright notice and this permission notice shall be
	13	* included in all copies or substantial portions of the Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	16	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	17	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	18	* NONINFRINGEMENT. IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
	19	* HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
	20	* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	22	* DEALINGS IN THE SOFTWARE.
	23	*
	24	* Except as contained in this notice, the name(s) of the above
	25	* copyright holders shall not be used in advertising or otherwise to
	26	* promote the sale, use or other dealings in this Software without
	27	* prior written authorization.
	28	*/
	29
	30	#ifdef HAVE_DIX_CONFIG_H
	31	#include <dix-config.h>
	32	#endif
	33
	34	#include <stddef.h>
	35	#include "mi.h"
	36	#include "scrnintstr.h"
	37	#include "gcstruct.h"
	38	#include "pixmapstr.h"
	39	#include "windowstr.h"
	40	#include "dixfontstr.h"
	41	#include "mivalidate.h"
	42	#include "driWrap.h"
	43	#include "dri.h"
	44
	45	#include <OpenGL/OpenGL.h>
	46
	47	typedef struct {
	48	GCOps *originalOps;
	49	} DRIGCRec;
	50
	51	typedef struct {
	52	GCOps *originalOps;
	53	CreateGCProcPtr CreateGC;
	54	} DRIWrapScreenRec;
	55
	56	typedef struct {
	57	Bool didSave;
	58	int devKind;
	59	DevUnion devPrivate;
	60	} DRISavedDrawableState;
	61
	62	static DevPrivateKeyRec driGCKeyRec;
	63	#define driGCKey (&driGCKeyRec)
	64
65	static DevPrivateKeyRec driWrapScreenKeyRec;
66	#define driWrapScreenKey (&driWrapScreenKeyRec)
67
68	static GCOps driGCOps;
69
70	#define wrap(priv, real, member, func) { \
71	priv->member = real->member; \
72	real->member = func; \
73	}
74
75	#define unwrap(priv, real, member) { \
76	real->member = priv->member; \
77	}
78
79	static DRIGCRec *
80	DRIGetGCPriv(GCPtr pGC)
81	{
82	return dixLookupPrivate(&pGC->devPrivates, driGCKey);
83	}
84
85	static void
86	DRIUnwrapGC(GCPtr pGC)
87	{
88	DRIGCRec *pGCPriv = DRIGetGCPriv(pGC);
89
90	pGC->ops = pGCPriv->originalOps;
91	}
92
93	static void
94	DRIWrapGC(GCPtr pGC)
95	{
96	pGC->ops = &driGCOps;
97	}
98
99	static void
100	DRISurfaceSetDrawable(DrawablePtr pDraw,
101	DRISavedDrawableState *saved)
102	{
103	saved->didSave = FALSE;
104
105	if (pDraw->type == DRAWABLE_PIXMAP) {
106	int pitch, width, height, bpp;
107	void *buffer;
108
109	if (DRIGetPixmapData(pDraw, &width, &height, &pitch, &bpp,
110	&buffer)) {
111	PixmapPtr pPix = (PixmapPtr)pDraw;
112
113	saved->devKind = pPix->devKind;
114	saved->devPrivate.ptr = pPix->devPrivate.ptr;
115	saved->didSave = TRUE;
116
117	pPix->devKind = pitch;
118	pPix->devPrivate.ptr = buffer;
119	}
120	}
121	}
122
123	static void
124	DRISurfaceRestoreDrawable(DrawablePtr pDraw,
125	DRISavedDrawableState *saved)
126	{
127	PixmapPtr pPix = (PixmapPtr)pDraw;
128
129	if (!saved->didSave)
130	return;
131
132	pPix->devKind = saved->devKind;
133	pPix->devPrivate.ptr = saved->devPrivate.ptr;
134	}
135
136	static void
137	DRIFillSpans(DrawablePtr dst, GCPtr pGC, int nInit,
138	DDXPointPtr pptInit, int *pwidthInit,
139	int sorted)
140	{
141	DRISavedDrawableState saved;
142
143	DRISurfaceSetDrawable(dst, &saved);
144
145	DRIUnwrapGC(pGC);
146
147	pGC->ops->FillSpans(dst, pGC, nInit, pptInit, pwidthInit, sorted);
148
149	DRIWrapGC(pGC);
150
151	DRISurfaceRestoreDrawable(dst, &saved);
152	}
153
154	static void
155	DRISetSpans(DrawablePtr dst, GCPtr pGC, char *pSrc,
156	DDXPointPtr pptInit, int *pwidthInit,
157	int nspans, int sorted)
158	{
159	DRISavedDrawableState saved;
160
161	DRISurfaceSetDrawable(dst, &saved);
162
163	DRIUnwrapGC(pGC);
164
165	pGC->ops->SetSpans(dst, pGC, pSrc, pptInit, pwidthInit, nspans, sorted);
166
167	DRIWrapGC(pGC);
168
169	DRISurfaceRestoreDrawable(dst, &saved);
170	}
171
172	static void
173	DRIPutImage(DrawablePtr dst, GCPtr pGC,
174	int depth, int x, int y, int w, int h,
175	int leftPad, int format, char *pBits)
176	{
177	DRISavedDrawableState saved;
178
179	DRISurfaceSetDrawable(dst, &saved);
180
181	DRIUnwrapGC(pGC);
182
183	pGC->ops->PutImage(dst, pGC, depth, x, y, w, h, leftPad, format, pBits);
184
185	DRIWrapGC(pGC);
186
187	DRISurfaceRestoreDrawable(dst, &saved);
188	}
189
190	static RegionPtr
191	DRICopyArea(DrawablePtr pSrc, DrawablePtr dst, GCPtr pGC,
192	int srcx, int srcy, int w, int h,
193	int dstx, int dsty)
194	{
195	RegionPtr pReg;
196	DRISavedDrawableState pSrcSaved, dstSaved;
197
198	DRISurfaceSetDrawable(pSrc, &pSrcSaved);
199	DRISurfaceSetDrawable(dst, &dstSaved);
200
201	DRIUnwrapGC(pGC);
202
203	pReg = pGC->ops->CopyArea(pSrc, dst, pGC, srcx, srcy, w, h, dstx, dsty);
204
205	DRIWrapGC(pGC);
206
207	DRISurfaceRestoreDrawable(pSrc, &pSrcSaved);
208	DRISurfaceRestoreDrawable(dst, &dstSaved);
209
210	return pReg;
211	}
212
213	static RegionPtr
214	DRICopyPlane(DrawablePtr pSrc, DrawablePtr dst,
215	GCPtr pGC, int srcx, int srcy,
216	int w, int h, int dstx, int dsty,
217	unsigned long plane)
218	{
219	RegionPtr pReg;
220	DRISavedDrawableState pSrcSaved, dstSaved;
221
222	DRISurfaceSetDrawable(pSrc, &pSrcSaved);
223	DRISurfaceSetDrawable(dst, &dstSaved);
224
225	DRIUnwrapGC(pGC);
226
227	pReg = pGC->ops->CopyPlane(pSrc, dst, pGC, srcx, srcy, w, h, dstx, dsty,
228	plane);
229
230	DRIWrapGC(pGC);
231
232	DRISurfaceRestoreDrawable(pSrc, &pSrcSaved);
233	DRISurfaceRestoreDrawable(dst, &dstSaved);
234
235	return pReg;
236	}
237
238	static void
239	DRIPolyPoint(DrawablePtr dst, GCPtr pGC,
240	int mode, int npt, DDXPointPtr pptInit)
241	{
242	DRISavedDrawableState saved;
243
244	DRISurfaceSetDrawable(dst, &saved);
245
246	DRIUnwrapGC(pGC);
247
248	pGC->ops->PolyPoint(dst, pGC, mode, npt, pptInit);
249
250	DRIWrapGC(pGC);
251
252	DRISurfaceRestoreDrawable(dst, &saved);
253	}
254
255	static void
256	DRIPolylines(DrawablePtr dst, GCPtr pGC,
257	int mode, int npt, DDXPointPtr pptInit)
258	{
259	DRISavedDrawableState saved;
260
261	DRISurfaceSetDrawable(dst, &saved);
262
263	DRIUnwrapGC(pGC);
264
265	pGC->ops->Polylines(dst, pGC, mode, npt, pptInit);
266
267	DRIWrapGC(pGC);
268
269	DRISurfaceRestoreDrawable(dst, &saved);
270	}
271
272	static void
273	DRIPolySegment(DrawablePtr dst, GCPtr pGC,
274	int nseg, xSegment *pSeg)
275	{
276	DRISavedDrawableState saved;
277
278	DRISurfaceSetDrawable(dst, &saved);
279
280	DRIUnwrapGC(pGC);
281
282	pGC->ops->PolySegment(dst, pGC, nseg, pSeg);
283
284	DRIWrapGC(pGC);
285
286	DRISurfaceRestoreDrawable(dst, &saved);
287	}
288
289	static void
290	DRIPolyRectangle(DrawablePtr dst, GCPtr pGC,
291	int nRects, xRectangle *pRects)
292	{
293	DRISavedDrawableState saved;
294
295	DRISurfaceSetDrawable(dst, &saved);
296
297	DRIUnwrapGC(pGC);
298
299	pGC->ops->PolyRectangle(dst, pGC, nRects, pRects);
300
301	DRIWrapGC(pGC);
302
303	DRISurfaceRestoreDrawable(dst, &saved);
304	}
305	static void
306	DRIPolyArc(DrawablePtr dst, GCPtr pGC, int narcs, xArc *parcs)
307	{
308	DRISavedDrawableState saved;
309
310	DRISurfaceSetDrawable(dst, &saved);
311
312	DRIUnwrapGC(pGC);
313
314	pGC->ops->PolyArc(dst, pGC, narcs, parcs);
315
316	DRIWrapGC(pGC);
317
318	DRISurfaceRestoreDrawable(dst, &saved);
319	}
320
321	static void
322	DRIFillPolygon(DrawablePtr dst, GCPtr pGC,
323	int shape, int mode, int count,
324	DDXPointPtr pptInit)
325	{
326	DRISavedDrawableState saved;
327
328	DRISurfaceSetDrawable(dst, &saved);
329
330	DRIUnwrapGC(pGC);
331
332	pGC->ops->FillPolygon(dst, pGC, shape, mode, count, pptInit);
333
334	DRIWrapGC(pGC);
335
336	DRISurfaceRestoreDrawable(dst, &saved);
337	}
338
339	static void
340	DRIPolyFillRect(DrawablePtr dst, GCPtr pGC,
341	int nRectsInit, xRectangle *pRectsInit)
342	{
343	DRISavedDrawableState saved;
344
345	DRISurfaceSetDrawable(dst, &saved);
346
347	DRIUnwrapGC(pGC);
348
349	pGC->ops->PolyFillRect(dst, pGC, nRectsInit, pRectsInit);
350
351	DRIWrapGC(pGC);
352
353	DRISurfaceRestoreDrawable(dst, &saved);
354	}
355
356	static void
357	DRIPolyFillArc(DrawablePtr dst, GCPtr pGC,
358	int narcsInit, xArc *parcsInit)
359	{
360	DRISavedDrawableState saved;
361
362	DRISurfaceSetDrawable(dst, &saved);
363
364	DRIUnwrapGC(pGC);
365
366	pGC->ops->PolyFillArc(dst, pGC, narcsInit, parcsInit);
367
368	DRIWrapGC(pGC);
369
370	DRISurfaceRestoreDrawable(dst, &saved);
371	}
372
373	static int
374	DRIPolyText8(DrawablePtr dst, GCPtr pGC,
375	int x, int y, int count, char *chars)
376	{
377	int ret;
378	DRISavedDrawableState saved;
379
380	DRISurfaceSetDrawable(dst, &saved);
381
382	DRIUnwrapGC(pGC);
383
384	ret = pGC->ops->PolyText8(dst, pGC, x, y, count, chars);
385
386	DRIWrapGC(pGC);
387
388	DRISurfaceRestoreDrawable(dst, &saved);
389
390	return ret;
391	}
392
393	static int
394	DRIPolyText16(DrawablePtr dst, GCPtr pGC,
395	int x, int y, int count, unsigned short *chars)
396	{
397	int ret;
398	DRISavedDrawableState saved;
399
400	DRISurfaceSetDrawable(dst, &saved);
401
402	DRIUnwrapGC(pGC);
403
404	ret = pGC->ops->PolyText16(dst, pGC, x, y, count, chars);
405
406	DRIWrapGC(pGC);
407
408	DRISurfaceRestoreDrawable(dst, &saved);
409
410	return ret;
411	}
412
413	static void
414	DRIImageText8(DrawablePtr dst, GCPtr pGC,
415	int x, int y, int count, char *chars)
416	{
417	DRISavedDrawableState saved;
418
419	DRISurfaceSetDrawable(dst, &saved);
420
421	DRIUnwrapGC(pGC);
422
423	pGC->ops->ImageText8(dst, pGC, x, y, count, chars);
424
425	DRIWrapGC(pGC);
426
427	DRISurfaceRestoreDrawable(dst, &saved);
428	}
429
430	static void
431	DRIImageText16(DrawablePtr dst, GCPtr pGC,
432	int x, int y, int count, unsigned short *chars)
433	{
434	DRISavedDrawableState saved;
435
436	DRISurfaceSetDrawable(dst, &saved);
437
438	DRIUnwrapGC(pGC);
439
440	pGC->ops->ImageText16(dst, pGC, x, y, count, chars);
441
442	DRIWrapGC(pGC);
443
444	DRISurfaceRestoreDrawable(dst, &saved);
445	}
446
447	static void
448	DRIImageGlyphBlt(DrawablePtr dst, GCPtr pGC,
449	int x, int y, unsigned int nglyphInit,
450	CharInfoPtr *ppciInit, pointer unused)
451	{
452	DRISavedDrawableState saved;
453
454	DRISurfaceSetDrawable(dst, &saved);
455
456	DRIUnwrapGC(pGC);
457
458	pGC->ops->ImageGlyphBlt(dst, pGC, x, y, nglyphInit, ppciInit, unused);
459
460	DRIWrapGC(pGC);
461
462	DRISurfaceRestoreDrawable(dst, &saved);
463	}
464
465	static void
466	DRIPolyGlyphBlt(DrawablePtr dst, GCPtr pGC,
467	int x, int y, unsigned int nglyph,
468	CharInfoPtr *ppci, pointer pglyphBase)
469	{
470	DRISavedDrawableState saved;
471
472	DRISurfaceSetDrawable(dst, &saved);
473
474	DRIUnwrapGC(pGC);
475
476	pGC->ops->PolyGlyphBlt(dst, pGC, x, y, nglyph, ppci, pglyphBase);
477
478	DRIWrapGC(pGC);
479
480	DRISurfaceRestoreDrawable(dst, &saved);
481	}
482
483	static void
484	DRIPushPixels(GCPtr pGC, PixmapPtr pBitMap, DrawablePtr dst,
485	int dx, int dy, int xOrg, int yOrg)
486	{
487	DRISavedDrawableState bitMapSaved, dstSaved;
488
489	DRISurfaceSetDrawable(&pBitMap->drawable, &bitMapSaved);
490	DRISurfaceSetDrawable(dst, &dstSaved);
491
492	DRIUnwrapGC(pGC);
493
494	pGC->ops->PushPixels(pGC, pBitMap, dst, dx, dy, xOrg, yOrg);
495
496	DRIWrapGC(pGC);
497
498	DRISurfaceRestoreDrawable(&pBitMap->drawable, &bitMapSaved);
499	DRISurfaceRestoreDrawable(dst, &dstSaved);
500	}
501
502	static GCOps driGCOps = {
503	DRIFillSpans,
504	DRISetSpans,
505	DRIPutImage,
506	DRICopyArea,
507	DRICopyPlane,
508	DRIPolyPoint,
509	DRIPolylines,
510	DRIPolySegment,
511	DRIPolyRectangle,
512	DRIPolyArc,
513	DRIFillPolygon,
514	DRIPolyFillRect,
515	DRIPolyFillArc,
516	DRIPolyText8,
517	DRIPolyText16,
518	DRIImageText8,
519	DRIImageText16,
520	DRIImageGlyphBlt,
521	DRIPolyGlyphBlt,
522	DRIPushPixels
523	};
524
525	static Bool
526	DRICreateGC(GCPtr pGC)
527	{
528	ScreenPtr pScreen = pGC->pScreen;
529	DRIWrapScreenRec *pScreenPriv;
530	DRIGCRec *pGCPriv;
531	Bool ret;
532
533	pScreenPriv = dixLookupPrivate(&pScreen->devPrivates, driWrapScreenKey);
534
535	pGCPriv = DRIGetGCPriv(pGC);
536
537	unwrap(pScreenPriv, pScreen, CreateGC);
538	ret = pScreen->CreateGC(pGC);
539
540	if (ret) {
541	pGCPriv->originalOps = pGC->ops;
542	pGC->ops = &driGCOps;
543	}
544
545	wrap(pScreenPriv, pScreen, CreateGC, DRICreateGC);
546
547	return ret;
548	}
549
550	/* Return false if an error occurred. */
551	Bool
552	DRIWrapInit(ScreenPtr pScreen)
553	{
554	DRIWrapScreenRec *pScreenPriv;
555
556	if (!dixRegisterPrivateKey(&driGCKeyRec, PRIVATE_GC, sizeof(DRIGCRec)))
557	return FALSE;
558
559	if (!dixRegisterPrivateKey(&driWrapScreenKeyRec, PRIVATE_SCREEN,
560	sizeof(DRIWrapScreenRec)))
561	return FALSE;
562
563	pScreenPriv = dixGetPrivateAddr(&pScreen->devPrivates,
564	&driWrapScreenKeyRec);
565	pScreenPriv->CreateGC = pScreen->CreateGC;
566	pScreen->CreateGC = DRICreateGC;
567
568	return TRUE;
569	}