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- /****************************************************************************
- * graphics/nxsu/nx_open.c
- *
- * Copyright (C) 2008-2010, 2013 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- * used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
- /****************************************************************************
- * Included Files
- ****************************************************************************/
- #include <nuttx/config.h>
- #include <stdbool.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <errno.h>
- #include <debug.h>
- #include <nuttx/kmalloc.h>
- #include <nuttx/nx/nx.h>
- #include "nxfe.h"
- /****************************************************************************
- * Pre-Processor Definitions
- ****************************************************************************/
- /****************************************************************************
- * Private Types
- ****************************************************************************/
- /****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
- static void nxsu_bkgdredraw(NXWINDOW hwnd,
- FAR const struct nxgl_rect_s *rect,
- bool more, FAR void *arg);
- /****************************************************************************
- * Private Data
- ****************************************************************************/
- /****************************************************************************
- * Public Data
- ****************************************************************************/
- const struct nx_callback_s g_bkgdcb =
- {
- nxsu_bkgdredraw, /* redraw */
- NULL /* position */
- #ifdef CONFIG_NX_MOUSE
- , NULL /* mousein */
- #endif
- #ifdef CONFIG_NX_KBD
- , NULL /* my kbdin */
- #endif
- };
- /****************************************************************************
- * Private Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: nxsu_bkgdredraw
- ****************************************************************************/
- static void nxsu_bkgdredraw(NXWINDOW hwnd,
- FAR const struct nxgl_rect_s *rect,
- bool more, FAR void *arg)
- {
- FAR struct nxbe_window_s *wnd = (FAR struct nxbe_window_s *)hwnd;
- FAR struct nxbe_state_s *be = wnd->be;
- gvdbg("BG redraw rect={(%d,%d),(%d,%d)}\n",
- rect->pt1.x, rect->pt1.y, rect->pt2.x, rect->pt2.y);
- nxbe_fill(wnd, &wnd->bounds, be->bgcolor);
- }
- /****************************************************************************
- * Name: nxsu_setup
- ****************************************************************************/
- static inline int nxsu_setup(FAR NX_DRIVERTYPE *dev,
- FAR struct nxfe_state_s *fe)
- {
- int ret;
- /* Configure the framebuffer device */
- ret = nxbe_configure(dev, &fe->be);
- if (ret < 0)
- {
- gdbg("nxbe_configure failed: %d\n", -ret);
- errno = -ret;
- return ERROR;
- }
- #if CONFIG_FB_CMAP
- ret = nxbe_colormap(dev);
- if (ret < 0)
- {
- gdbg("nxbe_colormap failed: %d\n", -ret);
- errno = -ret;
- return ERROR;
- }
- #endif
- /* Initialize the non-NULL elements of the back-end structure window */
- /* Initialize the background window */
- fe->be.bkgd.be = &fe->be;
- fe->be.bkgd.cb = &g_bkgdcb;
- fe->be.bkgd.bounds.pt2.x = fe->be.vinfo.xres - 1;
- fe->be.bkgd.bounds.pt2.y = fe->be.vinfo.yres - 1;
- /* Complete initialization of the server state structure. The
- * window list contains only one element: The background window
- * with nothing else above or below it
- */
- fe->be.topwnd = &fe->be.bkgd;
- /* Initialize the mouse position */
- #ifdef CONFIG_NX_MOUSE
- nxsu_mouseinit(fe->be.vinfo.xres, fe->be.vinfo.yres);
- #endif
- return OK;
- }
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: nx_open
- *
- * Description:
- * Create, initialize and return an NX handle for use in subsequent
- * NX API calls. nx_open is the single user equivalent of nx_connect
- * plus nx_run.
- *
- * Input Parameters:
- * dev - Vtable "object" of the framebuffer/LCD "driver" to use
- *
- * Return:
- * Success: A non-NULL handle used with subsequent NX accesses
- * Failure: NULL is returned and errno is set appropriately
- *
- ****************************************************************************/
- NXHANDLE nx_open(FAR NX_DRIVERTYPE *dev)
- {
- FAR struct nxfe_state_s *fe;
- int ret;
- /* Sanity checking */
- #ifdef CONFIG_DEBUG
- if (!dev)
- {
- errno = EINVAL;
- return NULL;
- }
- #endif
- /* Allocate the NX state structure */
- fe = (FAR struct nxfe_state_s *)kzalloc(sizeof(struct nxfe_state_s));
- if (!fe)
- {
- errno = ENOMEM;
- return NULL;
- }
- /* Initialize and configure the server */
- ret = nxsu_setup(dev, fe);
- if (ret < 0)
- {
- return NULL; /* nxsu_setup sets errno */
- }
- /* Fill the initial background window */
- nxbe_fill(&fe->be.bkgd, &fe->be.bkgd.bounds, fe->be.bgcolor);
- return (NXHANDLE)fe;
- }
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