[PATCH xserver 05/10] Revert "modesetting: Delete dead drmmode_bo_for_pixmap function."

[Qiang Yu]

This reverts commit d3d4ff0ed4d4679b7983b1a3ea267ff945f7643c.

This function is needed for importing pixmap created by render
node for display node.

Signed-off-by: Qiang Yu <Qiang.Yu at amd.com>
---
 hw/xfree86/drivers/modesetting/drmmode_display.c | 30 ++++++++++++++++++++++++
 hw/xfree86/drivers/modesetting/drmmode_display.h |  1 +
 2 files changed, 31 insertions(+)

diff --git a/hw/xfree86/drivers/modesetting/drmmode_display.c b/hw/xfree86/drivers/modesetting/drmmode_display.c
index 6e755e9..4bfaace 100644
--- a/hw/xfree86/drivers/modesetting/drmmode_display.c
+++ b/hw/xfree86/drivers/modesetting/drmmode_display.c
@@ -179,6 +179,36 @@ drmmode_create_bo(drmmode_ptr drmmode, drmmode_bo *bo,
 }
 
 Bool
+drmmode_bo_for_pixmap(drmmode_ptr drmmode, drmmode_bo *bo, PixmapPtr pixmap)
+{
+#ifdef GLAMOR
+    ScreenPtr screen = xf86ScrnToScreen(drmmode->scrn);
+    CARD16 pitch;
+    CARD32 size;
+    int fd;
+
+#ifdef GLAMOR_HAS_GBM
+    if (drmmode->glamor) {
+        bo->gbm = glamor_gbm_bo_from_pixmap(screen, pixmap);
+        bo->dumb = NULL;
+        return bo->gbm != NULL;
+    }
+#endif
+
+    fd = glamor_fd_from_pixmap(screen, pixmap, &pitch, &size);
+    if (fd < 0) {
+        xf86DrvMsg(drmmode->scrn->scrnIndex, X_ERROR,
+                   "Failed to get fd for flip to new front.\n");
+        return FALSE;
+    }
+    bo->dumb = dumb_get_bo_from_fd(drmmode->fd, fd, pitch, size);
+    close(fd);
+#endif
+
+    return bo->dumb != NULL;
+}
+
+Bool
 drmmode_SetSlaveBO(PixmapPtr ppix,
                    drmmode_ptr drmmode, int fd_handle, int pitch, int size)
 {
diff --git a/hw/xfree86/drivers/modesetting/drmmode_display.h b/hw/xfree86/drivers/modesetting/drmmode_display.h
index 50976b8..da7d5d7 100644
--- a/hw/xfree86/drivers/modesetting/drmmode_display.h
+++ b/hw/xfree86/drivers/modesetting/drmmode_display.h
@@ -165,6 +165,7 @@ extern DevPrivateKeyRec msPixmapPrivateKeyRec;
 
 #define msGetPixmapPriv(drmmode, p) ((msPixmapPrivPtr)dixGetPrivateAddr(&(p)->devPrivates, &(drmmode)->pixmapPrivateKeyRec))
 
+Bool drmmode_bo_for_pixmap(drmmode_ptr drmmode, drmmode_bo *bo, PixmapPtr pixmap);
 int drmmode_bo_destroy(drmmode_ptr drmmode, drmmode_bo *bo);
 uint32_t drmmode_bo_get_pitch(drmmode_bo *bo);
 uint32_t drmmode_bo_get_handle(drmmode_bo *bo);
-- 
2.7.4