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DRI2: Implement protocol for DRI2GetBuffersWithFormat 

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Kristian Høgsberg <krh@redhat.com>
This commit is contained in:
Ian Romanick 2009-04-20 20:52:56 -07:00 committed by Ian Romanick
parent 1c9786894c
commit d8d7b2c395
2 changed files with 80 additions and 0 deletions
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70
src/glx/x11/dri2.c
View File

@ -39,6 +39,16 @@
#include "xf86drm.h"
#include "dri2.h"
/* Allow the build to work with an older versions of dri2proto.h and
* dri2tokens.h.
*/
#if DRI2_MINOR < 1
#undef DRI2_MINOR
#define DRI2_MINOR 1
#define X_DRI2GetBuffersWithFormat 7
#endif
static char dri2ExtensionName[] = DRI2_NAME;
static XExtensionInfo *dri2Info;
static XEXT_GENERATE_CLOSE_DISPLAY (DRI2CloseDisplay, dri2Info)
@ -276,6 +286,66 @@ DRI2Buffer *DRI2GetBuffers(Display *dpy, XID drawable,
return buffers;
}
DRI2Buffer *DRI2GetBuffersWithFormat(Display *dpy, XID drawable,
int *width, int *height,
unsigned int *attachments, int count,
int *outCount)
{
XExtDisplayInfo *info = DRI2FindDisplay(dpy);
xDRI2GetBuffersReply rep;
xDRI2GetBuffersReq *req;
DRI2Buffer *buffers;
xDRI2Buffer repBuffer;
CARD32 *p;
int i;
XextCheckExtension (dpy, info, dri2ExtensionName, False);
LockDisplay(dpy);
GetReqExtra(DRI2GetBuffers, count * (4 * 2), req);
req->reqType = info->codes->major_opcode;
req->dri2ReqType = X_DRI2GetBuffersWithFormat;
req->drawable = drawable;
req->count = count;
p = (CARD32 *) &req[1];
for (i = 0; i < (count * 2); i++)
p[i] = attachments[i];
if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
UnlockDisplay(dpy);
SyncHandle();
return NULL;
}
*width = rep.width;
*height = rep.height;
*outCount = rep.count;
buffers = Xmalloc(rep.count * sizeof buffers[0]);
if (buffers == NULL) {
_XEatData(dpy, rep.count * sizeof repBuffer);
UnlockDisplay(dpy);
SyncHandle();
return NULL;
}
for (i = 0; i < rep.count; i++) {
_XReadPad(dpy, (char *) &repBuffer, sizeof repBuffer);
buffers[i].attachment = repBuffer.attachment;
buffers[i].name = repBuffer.name;
buffers[i].pitch = repBuffer.pitch;
buffers[i].cpp = repBuffer.cpp;
buffers[i].flags = repBuffer.flags;
}
UnlockDisplay(dpy);
SyncHandle();
return buffers;
}
void DRI2CopyRegion(Display *dpy, XID drawable, XserverRegion region,
CARD32 dest, CARD32 src)
{

10
src/glx/x11/dri2.h
View File

@ -63,6 +63,16 @@ DRI2GetBuffers(Display *dpy, XID drawable,
unsigned int *attachments, int count,
int *outCount);
/**
* \note
* This function is only supported with DRI2 version 1.1 or later.
*/
extern DRI2Buffer *
DRI2GetBuffersWithFormat(Display *dpy, XID drawable,
int *width, int *height,
unsigned int *attachments, int count,
int *outCount);
extern void
DRI2CopyRegion(Display *dpy, XID drawable, XserverRegion region,
CARD32 dest, CARD32 src);