src/gallium/winsys/drm/nouveau/nouveau_swapbuffers.c

   1 #include "main/glheader.h"
   2 #include "glapi/glthread.h"
   3 #include <GL/internal/glcore.h>
   4
   5 #include "pipe/p_context.h"
   6 #include "state_tracker/st_public.h"
   7 #include "state_tracker/st_context.h"
   8 #include "state_tracker/st_cb_fbo.h"
   9
  10 #include "nouveau_context.h"
  11 #include "nouveau_local.h"
  12 #include "nouveau_screen.h"
  13 #include "nouveau_swapbuffers.h"
  14
  15 void
  16 nouveau_copy_buffer(__DRIdrawablePrivate *dPriv, struct pipe_surface *surf,
  17                     const drm_clip_rect_t *rect)
  18 {
  19         struct nouveau_context *nv = dPriv->driContextPriv->driverPrivate;
  20         drm_clip_rect_t *pbox;
  21         int nbox, i;
  22
  23         LOCK_HARDWARE(nv);
  24         if (!dPriv->numClipRects) {
  25                 UNLOCK_HARDWARE(nv);
  26                 return;
  27         }
  28         pbox = dPriv->pClipRects;
  29         nbox = dPriv->numClipRects;
  30
  31         nv->surface_copy_prep(nv, nv->frontbuffer, surf);
  32         for (i = 0; i < nbox; i++, pbox++) {
  33                 int sx, sy, dx, dy, w, h;
  34
  35                 sx = pbox->x1 - dPriv->x;
  36                 sy = pbox->y1 - dPriv->y;
  37                 dx = pbox->x1;
  38                 dy = pbox->y1;
  39                 w  = pbox->x2 - pbox->x1;
  40                 h  = pbox->y2 - pbox->y1;
  41
  42                 nv->surface_copy(nv, dx, dy, sx, sy, w, h);
  43         }
  44
  45         FIRE_RING(nv->nvc->channel);
  46         UNLOCK_HARDWARE(nv);
  47
  48         if (nv->last_stamp != dPriv->lastStamp) {
  49                 struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
  50                 st_resize_framebuffer(nvfb->stfb, dPriv->w, dPriv->h);
  51                 nv->last_stamp = dPriv->lastStamp;
  52         }
  53 }
  54
  55 void
  56 nouveau_copy_sub_buffer(__DRIdrawablePrivate *dPriv, int x, int y, int w, int h)
  57 {
  58         struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
  59         struct pipe_surface *surf;
  60
  61         surf = st_get_framebuffer_surface(nvfb->stfb, ST_SURFACE_BACK_LEFT);
  62         if (surf) {
  63                 drm_clip_rect_t rect;
  64                 rect.x1 = x;
  65                 rect.y1 = y;
  66                 rect.x2 = x + w;
  67                 rect.y2 = y + h;
  68
  69                 st_notify_swapbuffers(nvfb->stfb);
  70                 nouveau_copy_buffer(dPriv, surf, &rect);
  71         }
  72 }
  73
  74 void
  75 nouveau_swap_buffers(__DRIdrawablePrivate *dPriv)
  76 {
  77         struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
  78         struct pipe_surface *surf;
  79
  80         surf = st_get_framebuffer_surface(nvfb->stfb, ST_SURFACE_BACK_LEFT);
  81         if (surf) {
  82                 st_notify_swapbuffers(nvfb->stfb);
  83                 nouveau_copy_buffer(dPriv, surf, NULL);
  84         }
  85 }
  86