git.oblomov.eu Git - nouveau/blob - src/nouveau_dri2.c

   1 #include "nv_include.h"
   2 #include "dri2.h"
   3
   4 struct nouveau_dri2_buffer {
   5         PixmapPtr pPixmap;
   6 };
   7
   8 DRI2BufferPtr
   9 nouveau_dri2_create_buffers(DrawablePtr pDraw, unsigned int *attachments,
  10                             int count)
  11 {
  12         ScreenPtr pScreen = pDraw->pScreen;
  13         DRI2BufferPtr dri2_bufs;
  14         struct nouveau_dri2_buffer *nv_bufs;
  15         PixmapPtr ppix, pzpix;
  16         int i;
  17
  18         dri2_bufs = xcalloc(count, sizeof(*dri2_bufs));
  19         if (!dri2_bufs)
  20                 return NULL;
  21
  22         nv_bufs = xcalloc(count, sizeof(*nv_bufs));
  23         if (!nv_bufs) {
  24                 xfree(dri2_bufs);
  25                 return NULL;
  26         }
  27
  28         pzpix = NULL;
  29         for (i = 0; i < count; i++) {
  30                 if (attachments[i] == DRI2BufferFrontLeft) {
  31                         if (pDraw->type == DRAWABLE_PIXMAP) {
  32                                 ppix = (PixmapPtr)pDraw;
  33                         } else {
  34                                 WindowPtr pwin = (WindowPtr)pDraw;
  35                                 ppix = pScreen->GetWindowPixmap(pwin);
  36                         }
  37
  38                         ppix->refcnt++;
  39                 } else
  40                 if (attachments[i] == DRI2BufferStencil && pzpix) {
  41                         ppix = pzpix;
  42                         ppix->refcnt++;
  43                 } else {
  44                         ppix = pScreen->CreatePixmap(pScreen, pDraw->width,
  45                                                      pDraw->height,
  46                                                      pDraw->depth, 0);
  47                 }
  48
  49                 if (attachments[i] == DRI2BufferDepth)
  50                         pzpix = ppix;
  51
  52                 dri2_bufs[i].attachment = attachments[i];
  53                 dri2_bufs[i].pitch = ppix->devKind;
  54                 dri2_bufs[i].cpp = ppix->drawable.bitsPerPixel / 8;
  55                 dri2_bufs[i].driverPrivate = &nv_bufs[i];
  56                 dri2_bufs[i].flags = 0;
  57                 nv_bufs[i].pPixmap = ppix;
  58
  59                 nouveau_bo_handle_get(nouveau_pixmap(ppix)->bo,
  60                                       &dri2_bufs[i].name);
  61         }
  62
  63         return dri2_bufs;
  64 }
  65
  66 void
  67 nouveau_dri2_destroy_buffers(DrawablePtr pDraw, DRI2BufferPtr buffers,
  68                              int count)
  69 {
  70         struct nouveau_dri2_buffer *nvbuf;
  71
  72         while (count--) {
  73                 nvbuf = buffers[count].driverPrivate;
  74                 pDraw->pScreen->DestroyPixmap(nvbuf->pPixmap);
  75         }
  76
  77         if (buffers) {
  78                 xfree(buffers[0].driverPrivate);
  79                 xfree(buffers);
  80         }
  81 }
  82
  83 void
  84 nouveau_dri2_copy_region(DrawablePtr pDraw, RegionPtr pRegion,
  85                          DRI2BufferPtr pDstBuffer, DRI2BufferPtr pSrcBuffer)
  86 {
  87         struct nouveau_dri2_buffer *nvbuf = pSrcBuffer->driverPrivate;
  88         ScreenPtr pScreen = pDraw->pScreen;
  89         ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
  90         NVPtr pNv = NVPTR(pScrn);
  91         RegionPtr pCopyClip;
  92         GCPtr pGC;
  93
  94         pGC = GetScratchGC(pDraw->depth, pScreen);
  95         pCopyClip = REGION_CREATE(pScreen, NULL, 0);
  96         REGION_COPY(pScreen, pCopyClip, pRegion);
  97         pGC->funcs->ChangeClip(pGC, CT_REGION, pCopyClip, 0);
  98         ValidateGC(pDraw, pGC);
  99         pGC->ops->CopyArea(&nvbuf->pPixmap->drawable, pDraw, pGC, 0, 0,
 100                            pDraw->width, pDraw->height, 0, 0);
 101         FreeScratchGC(pGC);
 102
 103         FIRE_RING(pNv->chan);
 104 }
 105
 106 Bool
 107 nouveau_dri2_init(ScreenPtr pScreen)
 108 {
 109         ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
 110         NVPtr pNv = NVPTR(pScrn);
 111         DRI2InfoRec dri2;
 112
 113         dri2.version = 1;
 114         dri2.fd = nouveau_device(pNv->dev)->fd;
 115         dri2.driverName = "nouveau";
 116         dri2.deviceName = "/dev/dri/card0";
 117         dri2.CreateBuffers = nouveau_dri2_create_buffers;
 118         dri2.DestroyBuffers = nouveau_dri2_destroy_buffers;
 119         dri2.CopyRegion = nouveau_dri2_copy_region;
 120
 121         return DRI2ScreenInit(pScreen, &dri2);
 122 }
 123
 124 void
 125 nouveau_dri2_takedown(ScreenPtr pScreen)
 126 {
 127         DRI2CloseScreen(pScreen);
 128 }
 129