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#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include "xorg-server.h"
#include "nv_include.h"
#ifdef DRI2
#include "dri2.h"
#endif
#if defined(DRI2) && DRI2INFOREC_VERSION >= 3
struct nouveau_dri2_buffer {
DRI2BufferRec base;
PixmapPtr ppix;
};
static inline struct nouveau_dri2_buffer *
nouveau_dri2_buffer(DRI2BufferPtr buf)
{
return (struct nouveau_dri2_buffer *)buf;
}
DRI2BufferPtr
nouveau_dri2_create_buffer(DrawablePtr pDraw, unsigned int attachment,
unsigned int format)
{
ScreenPtr pScreen = pDraw->pScreen;
NVPtr pNv = NVPTR(xf86Screens[pScreen->myNum]);
struct nouveau_dri2_buffer *nvbuf;
PixmapPtr ppix;
nvbuf = xcalloc(1, sizeof(*nvbuf));
if (!nvbuf)
return NULL;
if (attachment == DRI2BufferFrontLeft) {
if (pDraw->type == DRAWABLE_PIXMAP) {
ppix = (PixmapPtr)pDraw;
} else {
WindowPtr pwin = (WindowPtr)pDraw;
ppix = pScreen->GetWindowPixmap(pwin);
}
ppix->refcnt++;
} else {
unsigned int usage_hint = 0;
if (attachment == DRI2BufferDepth ||
attachment == DRI2BufferDepthStencil)
usage_hint = NOUVEAU_CREATE_PIXMAP_ZETA;
ppix = pScreen->CreatePixmap(pScreen, pDraw->width,
pDraw->height, pDraw->depth,
usage_hint);
}
pNv->exa_force_cp = TRUE;
exaMoveInPixmap(ppix);
pNv->exa_force_cp = FALSE;
nvbuf->base.attachment = attachment;
nvbuf->base.pitch = ppix->devKind;
nvbuf->base.cpp = ppix->drawable.bitsPerPixel / 8;
nvbuf->base.driverPrivate = nvbuf;
nvbuf->base.format = format;
nvbuf->base.flags = 0;
nvbuf->ppix = ppix;
nouveau_bo_handle_get(nouveau_pixmap(ppix)->bo, &nvbuf->base.name);
return &nvbuf->base;
}
void
nouveau_dri2_destroy_buffer(DrawablePtr pDraw, DRI2BufferPtr buf)
{
struct nouveau_dri2_buffer *nvbuf;
nvbuf = nouveau_dri2_buffer(buf);
if (!nvbuf)
return;
pDraw->pScreen->DestroyPixmap(nvbuf->ppix);
xfree(nvbuf);
}
void
nouveau_dri2_copy_region(DrawablePtr pDraw, RegionPtr pRegion,
DRI2BufferPtr pDstBuffer, DRI2BufferPtr pSrcBuffer)
{
struct nouveau_dri2_buffer *src = nouveau_dri2_buffer(pSrcBuffer);
struct nouveau_dri2_buffer *dst = nouveau_dri2_buffer(pDstBuffer);
PixmapPtr pspix = src->ppix, pdpix = dst->ppix;
ScreenPtr pScreen = pDraw->pScreen;
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
NVPtr pNv = NVPTR(pScrn);
RegionPtr pCopyClip;
GCPtr pGC;
if (src->base.attachment == DRI2BufferFrontLeft)
pspix = (PixmapPtr)pDraw;
if (dst->base.attachment == DRI2BufferFrontLeft)
pdpix = (PixmapPtr)pDraw;
pGC = GetScratchGC(pDraw->depth, pScreen);
pCopyClip = REGION_CREATE(pScreen, NULL, 0);
REGION_COPY(pScreen, pCopyClip, pRegion);
pGC->funcs->ChangeClip(pGC, CT_REGION, pCopyClip, 0);
ValidateGC(&pdpix->drawable, pGC);
pGC->ops->CopyArea(&pspix->drawable, &pdpix->drawable, pGC, 0, 0,
pDraw->width, pDraw->height, 0, 0);
FreeScratchGC(pGC);
FIRE_RING(pNv->chan);
}
Bool
nouveau_dri2_init(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
NVPtr pNv = NVPTR(pScrn);
DRI2InfoRec dri2;
char *bus_id, *tmp_bus_id;
int cmp, i, fd;
/* The whole drmOpen thing is a fiasco and we need to find a way
* back to just using open(2). For now, however, lets just make
* things worse with even more ad hoc directory walking code to
* discover the device file name. */
bus_id = DRICreatePCIBusID(pNv->PciInfo);
for (i = 0; i < DRM_MAX_MINOR; i++) {
sprintf(pNv->drm_device_name, DRM_DEV_NAME, DRM_DIR_NAME, i);
fd = open(pNv->drm_device_name, O_RDWR);
if (fd < 0)
continue;
tmp_bus_id = drmGetBusid(fd);
close(fd);
if (tmp_bus_id == NULL)
continue;
cmp = strcmp(tmp_bus_id, bus_id);
drmFree(tmp_bus_id);
if (cmp == 0)
break;
}
xfree(bus_id);
if (i == DRM_MAX_MINOR) {
xf86DrvMsg(pScrn->scrnIndex, X_WARNING,
"DRI2: failed to open drm device\n");
return FALSE;
}
dri2.fd = nouveau_device(pNv->dev)->fd;
dri2.driverName = "nouveau";
dri2.deviceName = pNv->drm_device_name;
dri2.version = DRI2INFOREC_VERSION;
dri2.CreateBuffer = nouveau_dri2_create_buffer;
dri2.DestroyBuffer = nouveau_dri2_destroy_buffer;
dri2.CopyRegion = nouveau_dri2_copy_region;
return DRI2ScreenInit(pScreen, &dri2);
}
void
nouveau_dri2_fini(ScreenPtr pScreen)
{
DRI2CloseScreen(pScreen);
}
#else
Bool
nouveau_dri2_init(ScreenPtr pScreen)
{
return TRUE;
}
void
nouveau_dri2_fini(ScreenPtr pScreen)
{
}
#endif
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