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 "../common/nouveau_local.h"
  11 #include "nouveau_context_dri.h"
  12 #include "nouveau_screen_dri.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_dri *nv = dPriv->driContextPriv->driverPrivate;
  20         struct pipe_context *pipe = nv->base.nvc->pctx[nv->base.pctx_id];
  21         drm_clip_rect_t *pbox;
  22         int nbox, i;
  23
  24         LOCK_HARDWARE(&nv->base);
  25         if (!dPriv->numClipRects) {
  26                 UNLOCK_HARDWARE(&nv->base);
  27                 return;
  28         }
  29         pbox = dPriv->pClipRects;
  30         nbox = dPriv->numClipRects;
  31
  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                 pipe->surface_copy(pipe, nv->base.frontbuffer,
  43                                    dx, dy, surf, sx, sy, w, h);
  44         }
  45
  46         FIRE_RING(nv->base.nvc->channel);
  47         UNLOCK_HARDWARE(&nv->base);
  48
  49         if (nv->last_stamp != dPriv->lastStamp) {
  50                 struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
  51                 st_resize_framebuffer(nvfb->stfb, dPriv->w, dPriv->h);
  52                 nv->last_stamp = dPriv->lastStamp;
  53         }
  54 }
  55
  56 void
  57 nouveau_copy_sub_buffer(__DRIdrawablePrivate *dPriv, int x, int y, int w, int h)
  58 {
  59         struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
  60         struct pipe_surface *surf;
  61
  62         st_get_framebuffer_surface(nvfb->stfb, ST_SURFACE_BACK_LEFT, &surf);
  63         if (surf) {
  64                 drm_clip_rect_t rect;
  65                 rect.x1 = x;
  66                 rect.y1 = y;
  67                 rect.x2 = x + w;
  68                 rect.y2 = y + h;
  69
  70                 st_notify_swapbuffers(nvfb->stfb);
  71                 nouveau_copy_buffer(dPriv, surf, &rect);
  72         }
  73 }
  74
  75 void
  76 nouveau_swap_buffers(__DRIdrawablePrivate *dPriv)
  77 {
  78         struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
  79         struct pipe_surface *surf;
  80
  81         st_get_framebuffer_surface(nvfb->stfb, ST_SURFACE_BACK_LEFT, &surf);
  82         if (surf) {
  83                 st_notify_swapbuffers(nvfb->stfb);
  84                 nouveau_copy_buffer(dPriv, surf, NULL);
  85         }
  86 }
  87
  88 void
  89 nouveau_flush_frontbuffer(struct pipe_winsys *pws, struct pipe_surface *surf,
  90                           void *context_private)
  91 {
  92         struct nouveau_context_dri *nv = context_private;
  93         __DRIdrawablePrivate *dPriv = nv->dri_drawable;
  94
  95         nouveau_copy_buffer(dPriv, surf, NULL);
  96 }
  97
  98 void
  99 nouveau_contended_lock(struct nouveau_context *nv)
 100 {
 101         struct nouveau_context_dri *nv_sub = (struct nouveau_context_dri*)nv;
 102         __DRIdrawablePrivate *dPriv = nv_sub->dri_drawable;
 103         __DRIscreenPrivate *sPriv = nv_sub->dri_screen;
 104
 105         /* If the window moved, may need to set a new cliprect now.
 106          *
 107          * NOTE: This releases and regains the hw lock, so all state
 108          * checking must be done *after* this call:
 109          */
 110         if (dPriv)
 111                 DRI_VALIDATE_DRAWABLE_INFO(sPriv, dPriv);
 112 }
 113