1 files changed, 86 insertions, 0 deletions
diff --git a/src/gallium/winsys/drm/nouveau/nouveau_swapbuffers.c b/src/gallium/winsys/drm/nouveau/nouveau_swapbuffers.c
new file mode 100644
index 00000000000..70e0104e83b
--- /dev/null
+++ b/src/gallium/winsys/drm/nouveau/nouveau_swapbuffers.c
@@ -0,0 +1,86 @@
+#include "main/glheader.h"
+#include "glapi/glthread.h"
+#include <GL/internal/glcore.h>
+
+#include "pipe/p_context.h"
+#include "state_tracker/st_public.h"
+#include "state_tracker/st_context.h"
+#include "state_tracker/st_cb_fbo.h"
+
+#include "nouveau_context.h"
+#include "nouveau_local.h"
+#include "nouveau_screen.h"
+#include "nouveau_swapbuffers.h"
+
+void
+nouveau_copy_buffer(__DRIdrawablePrivate *dPriv, struct pipe_surface *surf,
+		    const drm_clip_rect_t *rect)
+{
+	struct nouveau_context *nv = dPriv->driContextPriv->driverPrivate;
+	drm_clip_rect_t *pbox;
+	int nbox, i;
+
+	LOCK_HARDWARE(nv);
+	if (!dPriv->numClipRects) {
+		UNLOCK_HARDWARE(nv);
+		return;
+	}
+	pbox = dPriv->pClipRects;
+	nbox = dPriv->numClipRects;
+
+	nv->surface_copy_prep(nv, nv->frontbuffer, surf);
+	for (i = 0; i < nbox; i++, pbox++) {
+		int sx, sy, dx, dy, w, h;
+
+		sx = pbox->x1 - dPriv->x;
+		sy = pbox->y1 - dPriv->y;
+		dx = pbox->x1;
+		dy = pbox->y1;
+		w  = pbox->x2 - pbox->x1;
+		h  = pbox->y2 - pbox->y1;
+
+		nv->surface_copy(nv, dx, dy, sx, sy, w, h);
+	}
+
+	FIRE_RING(nv->nvc->channel);
+	UNLOCK_HARDWARE(nv);
+
+	if (nv->last_stamp != dPriv->lastStamp) {
+		struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
+		st_resize_framebuffer(nvfb->stfb, dPriv->w, dPriv->h);
+		nv->last_stamp = dPriv->lastStamp;
+	}
+}
+
+void
+nouveau_copy_sub_buffer(__DRIdrawablePrivate *dPriv, int x, int y, int w, int h)
+{
+	struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
+	struct pipe_surface *surf;
+
+	surf = st_get_framebuffer_surface(nvfb->stfb, ST_SURFACE_BACK_LEFT);
+	if (surf) {
+		drm_clip_rect_t rect;
+		rect.x1 = x;
+		rect.y1 = y;
+		rect.x2 = x + w;
+		rect.y2 = y + h;
+
+		st_notify_swapbuffers(nvfb->stfb);
+		nouveau_copy_buffer(dPriv, surf, &rect);
+	}
+}
+
+void
+nouveau_swap_buffers(__DRIdrawablePrivate *dPriv)
+{
+	struct nouveau_framebuffer *nvfb = dPriv->driverPrivate;
+	struct pipe_surface *surf;
+
+	surf = st_get_framebuffer_surface(nvfb->stfb, ST_SURFACE_BACK_LEFT);
+	if (surf) {
+		st_notify_swapbuffers(nvfb->stfb);
+		nouveau_copy_buffer(dPriv, surf, NULL);
+	}
+}
+