/**************************************************************************** * graphics/nxbe/nxbe_bitmap.c * * Copyright (C) 2008-2009, 2012, 2016, 2019 Gregory Nutt. All rights * reserved. * Author: Gregory Nutt * * 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 #include #include #include #include #include "nxbe.h" /**************************************************************************** * Private Types ****************************************************************************/ struct nx_bitmap_s { struct nxbe_clipops_s cops; FAR const void *src; /* The start of the source image. */ struct nxgl_point_s origin; /* Offset into the source image data */ unsigned int stride; /* The width of the full source image in pixels. */ }; /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Name: bitmap_clipcopy * * Description: * Called from nxbe_clipper() to performed the fill operation on visible portions * of the rectangle. * ****************************************************************************/ static void bitmap_clipcopy(FAR struct nxbe_clipops_s *cops, FAR struct nxbe_plane_s *plane, FAR const struct nxgl_rect_s *rect) { struct nx_bitmap_s *bminfo = (struct nx_bitmap_s *)cops; /* Copy the rectangular region to the graphics device. */ plane->dev.copyrectangle(&plane->pinfo, rect, bminfo->src, &bminfo->origin, bminfo->stride); #ifdef CONFIG_NX_UPDATE /* Notify external logic that the display has been updated */ nx_notify_rectangle(&plane->pinfo, rect); #endif } /**************************************************************************** * Name: nxbe_bitmap_pwfb * * Description: * Copy a rectangular region of a larger image into the per-window * framebuffer. * * Input Parameters: * wnd - The window that will receive the bitmap image * dest - Describes the rectangular on the display that will receive the * the bit map. * src - The start of the source image. * origin - The origin of the upper, left-most corner of the full bitmap. * Both dest and origin are in window coordinates, however, origin * may lie outside of the display. * stride - The width of the full source image in bytes. * * Returned Value: * OK on success; ERROR on failure with errno set appropriately * ****************************************************************************/ #ifdef CONFIG_NX_RAMBACKED static inline void nxbe_bitmap_pwfb(FAR struct nxbe_window_s *wnd, FAR const struct nxgl_rect_s *dest, FAR const void *src[CONFIG_NX_NPLANES], FAR const struct nxgl_point_s *origin, unsigned int stride) { struct nxgl_rect_s destrect; unsigned int deststride; DEBUGASSERT(wnd != NULL && dest != NULL && src != NULL && origin != NULL); DEBUGASSERT(wnd->be != NULL && wnd->be->plane != NULL); /* Verify that the destination rectangle begins "below" and to the "right" * of the origin */ if (dest->pt1.x < origin->x || dest->pt1.y < origin->y) { gerr("ERROR: Bad dest start position\n"); return; } /* Verify that the width of the destination rectangle does not exceed the * width of the source bitmap data (taking into account the bitmap origin) */ deststride = (((dest->pt2.x - origin->x + 1) * wnd->be->plane[0].pinfo.bpp + 7) >> 3); if (deststride > stride) { gerr("ERROR: Bad dest width\n"); return; } /* Offset the rectangle and image origin by the window origin. This * converts the rectangle in the device absolute coordinates. */ nxgl_rectoffset(&destrect, dest, wnd->bounds.pt1.x, wnd->bounds.pt1.y); /* Clip to the limits of the window and of the background screen (in * device coordinates. */ nxgl_rectintersect(&destrect, &destrect, &wnd->bounds); nxgl_rectintersect(&destrect, &destrect, &wnd->be->bkgd.bounds); if (!nxgl_nullrect(&destrect)) { /* Restore the destination rectangle to relative window coordinates. */ nxgl_rectoffset(&destrect, &destrect, -wnd->bounds.pt1.x, -wnd->bounds.pt1.y); /* Copy the rectangular region to the framebuffer (no clipping). * REVISIT: Assumes a single color plane. */ DEBUGASSERT(wnd->be->plane[0].pwfb.copyrectangle != NULL); wnd->be->plane[0].pwfb.copyrectangle(wnd, &destrect, src[0], origin, stride); } } #endif /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: nxbe_bitmap_dev * * Description: * Copy a rectangular region of a larger image into the rectangle in the * specified window. The graphics output is written to the graphics * device unconditionally. * * Input Parameters: * wnd - The window that will receive the bitmap image * dest - Describes the rectangular on the display that will receive the * the bit map. * src - The start of the source image. * origin - The origin of the upper, left-most corner of the full bitmap. * Both dest and origin are in window coordinates, however, origin * may lie outside of the display. * stride - The width of the full source image in bytes. * * Returned Value: * OK on success; ERROR on failure with errno set appropriately * ****************************************************************************/ void nxbe_bitmap_dev(FAR struct nxbe_window_s *wnd, FAR const struct nxgl_rect_s *dest, FAR const void *src[CONFIG_NX_NPLANES], FAR const struct nxgl_point_s *origin, unsigned int stride) { struct nx_bitmap_s info; struct nxgl_rect_s bounds; struct nxgl_point_s offset; struct nxgl_rect_s remaining; unsigned int deststride; int i; DEBUGASSERT(wnd != NULL && dest != NULL && src != NULL && origin != NULL); DEBUGASSERT(wnd->be != NULL && wnd->be->plane != NULL); /* Verify that the destination rectangle begins "below" and to the "right" * of the origin */ if (dest->pt1.x < origin->x || dest->pt1.y < origin->y) { gerr("ERROR: Bad dest start position\n"); return; } /* Verify that the width of the destination rectangle does not exceed the * width of the source bitmap data (taking into account the bitmap origin) */ deststride = (((dest->pt2.x - origin->x + 1) * wnd->be->plane[0].pinfo.bpp + 7) >> 3); if (deststride > stride) { gerr("ERROR: Bad dest width\n"); return; } /* Offset the rectangle and image origin by the window origin */ nxgl_rectoffset(&bounds, dest, wnd->bounds.pt1.x, wnd->bounds.pt1.y); nxgl_vectoradd(&offset, origin, &wnd->bounds.pt1); /* Clip to the limits of the window and of the background screen */ nxgl_rectintersect(&remaining, &bounds, &wnd->bounds); nxgl_rectintersect(&remaining, &remaining, &wnd->be->bkgd.bounds); if (nxgl_nullrect(&remaining)) { return; } /* Then perform the clipped fill */ #if CONFIG_NX_NPLANES > 1 for (i = 0; i < wnd->be->vinfo.nplanes; i++) #else i = 0; #endif { DEBUGASSERT(wnd->be->plane[i].dev.copyrectangle != NULL); info.cops.visible = bitmap_clipcopy; info.cops.obscured = nxbe_clipnull; info.src = src[i]; info.origin.x = offset.x; info.origin.y = offset.y; info.stride = stride; nxbe_clipper(wnd->above, &remaining, NX_CLIPORDER_DEFAULT, &info.cops, &wnd->be->plane[i]); } } /**************************************************************************** * Name: nxbe_bitmap * * Description: * Copy a rectangular region of a larger image into the rectangle in the * specified window. This is a front end to nxbe_bitmap_dev() that is * used only if CONFIG_NX_RAMBACKED=y. If the per-window frame buffer is * selected, then the bit map will be written to both the graphics device * and shadowed in the per-window framebuffer. * * Input Parameters: * wnd - The window that will receive the bitmap image * dest - Describes the rectangular on the display that will receive the * the bit map. * src - The start of the source image. * origin - The origin of the upper, left-most corner of the full bitmap. * Both dest and origin are in window coordinates, however, origin * may lie outside of the display. * stride - The width of the full source image in bytes. * * Returned Value: * None * ****************************************************************************/ #ifdef CONFIG_NX_RAMBACKED void nxbe_bitmap(FAR struct nxbe_window_s *wnd, FAR const struct nxgl_rect_s *dest, FAR const void *src[CONFIG_NX_NPLANES], FAR const struct nxgl_point_s *origin, unsigned int stride) { /* If this window supports a pre-window frame buffer then shadow the full, * unclipped bitmap in that framebuffer. */ if (NXBE_ISRAMBACKED(wnd)) { nxbe_bitmap_pwfb(wnd, dest, src, origin, stride); } /* Rend the bitmap directly to the graphics device in any case */ nxbe_bitmap_dev(wnd, dest, src, origin, stride); } #endif