src/gallium/winsys/drm/nouveau/dri/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_screen.h"
  12 #include "nouveau_swapbuffers.h"
  13
  14 #include "nouveau_pushbuf.h"
  15
  16 void
  17 nouveau_copy_buffer(__DRIdrawablePrivate *dPriv, struct pipe_surface *surf,
  18                     const drm_clip_rect_t *rect)
  19 {
  20         struct nouveau_context *nv = dPriv->driContextPriv->driverPrivate;
  21         struct nouveau_screen *nv_screen = nv->dri_screen->private;
  22         struct pipe_context *pipe = nv->st->pipe;
  23         drm_clip_rect_t *pbox;
  24         int nbox, i;
  25
  26         LOCK_HARDWARE(nv);
  27         if (!dPriv->numClipRects) {
  28                 UNLOCK_HARDWARE(nv);
  29                 return;
  30         }
  31         pbox = dPriv->pClipRects;
  32         nbox = dPriv->numClipRects;
  33
  34         for (i = 0; i < nbox; i++, pbox++) {
  35                 int sx, sy, dx, dy, w, h;
  36
  37                 sx = pbox->x1 - dPriv->x;
  38                 sy = pbox->y1 - dPriv->y;
  39                 dx = pbox->x1;
  40                 dy = pbox->y1;
  41                 w  = pbox->x2 - pbox->x1;
  42                 h  = pbox->y2 - pbox->y1;
  43
  44                 pipe->surface_copy(pipe, nv_screen->fb, dx, dy, surf,
  45                                    sx, sy, w, h);
  46         }
  47
  48         pipe->flush(pipe, 0, NULL);
  49         UNLOCK_HARDWARE(nv);
  50
  51         if (nv->last_stamp != dPriv->lastStamp) {
  52                 struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
  53                 st_resize_framebuffer(nvfb->stfb, dPriv->w, dPriv->h);
  54                 nv->last_stamp = dPriv->lastStamp;
  55         }
  56 }
  57
  58 void
  59 nouveau_copy_sub_buffer(__DRIdrawablePrivate *dPriv, int x, int y, int w, int h)
  60 {
  61         struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
  62         struct pipe_surface *surf;
  63
  64         st_get_framebuffer_surface(nvfb->stfb, ST_SURFACE_BACK_LEFT, &surf);
  65         if (surf) {
  66                 drm_clip_rect_t rect;
  67                 rect.x1 = x;
  68                 rect.y1 = y;
  69                 rect.x2 = x + w;
  70                 rect.y2 = y + h;
  71
  72                 st_notify_swapbuffers(nvfb->stfb);
  73                 nouveau_copy_buffer(dPriv, surf, &rect);
  74         }
  75 }
  76
  77 void
  78 nouveau_swap_buffers(__DRIdrawablePrivate *dPriv)
  79 {
  80         struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
  81         struct pipe_surface *surf;
  82
  83         st_get_framebuffer_surface(nvfb->stfb, ST_SURFACE_BACK_LEFT, &surf);
  84         if (surf) {
  85                 st_notify_swapbuffers(nvfb->stfb);
  86                 nouveau_copy_buffer(dPriv, surf, NULL);
  87         }
  88 }
  89
  90 void
  91 nouveau_flush_frontbuffer(struct pipe_screen *pscreen, struct pipe_surface *ps,
  92                           void *context_private)
  93 {
  94         struct nouveau_context *nv = context_private;
  95         __DRIdrawablePrivate *dPriv = nv->dri_drawable;
  96
  97         nouveau_copy_buffer(dPriv, ps, NULL);
  98 }
  99
 100 void
 101 nouveau_contended_lock(struct nouveau_context *nv)
 102 {
 103         struct nouveau_context *nv_sub = (struct nouveau_context*)nv;
 104         __DRIdrawablePrivate *dPriv = nv_sub->dri_drawable;
 105         __DRIscreenPrivate *sPriv = nv_sub->dri_screen;
 106
 107         /* If the window moved, may need to set a new cliprect now.
 108          *
 109          * NOTE: This releases and regains the hw lock, so all state
 110          * checking must be done *after* this call:
 111          */
 112         if (dPriv)
 113                 DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);
 114 }
 115