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Diffstat (limited to 'NxWidgets/libnxwidgets/include/cbitmap.hxx')
| -rw-r--r-- | NxWidgets/libnxwidgets/include/cbitmap.hxx | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/NxWidgets/libnxwidgets/include/cbitmap.hxx b/NxWidgets/libnxwidgets/include/cbitmap.hxx new file mode 100644 index 000000000..473403aa8 --- /dev/null +++ b/NxWidgets/libnxwidgets/include/cbitmap.hxx @@ -0,0 +1,204 @@ +/**************************************************************************** + * NxWidgets/libnxwidgets/include/cbitmap.hxx + * + * Copyright (C) 2012 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, NxWidgets, nor the names of its contributors + * me 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. + * + **************************************************************************** + * + * Portions of this package derive from Woopsi (http://woopsi.org/) and + * portions are original efforts. It is difficult to determine at this + * point what parts are original efforts and which parts derive from Woopsi. + * However, in any event, the work of Antony Dzeryn will be acknowledged + * in all NxWidget files. Thanks Antony! + * + * Copyright (c) 2007-2011, Antony Dzeryn + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * 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. + * * Neither the names "Woopsi", "Simian Zombie" 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 Antony Dzeryn ``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 Antony Dzeryn 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. + * + ****************************************************************************/ + +#ifndef __INCLUDE_CBITMAP_HXX +#define __INCLUDE_CBITMAP_HXX + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> + +#include <stdint.h> +#include <stdbool.h> + +#include <nuttx/nx/nxglib.h> + +#include "nxconfig.hxx" +#include "ibitmap.hxx" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Implementation Classes + ****************************************************************************/ + +#if defined(__cplusplus) + +namespace NXWidgets +{ + /** + * Bitmap Structure + */ + + struct SBitmap + { + uint8_t bpp; /**< Bits per pixel */ + uint8_t fmt; /**< Color format */ + nxgl_coord_t width; /**< Width in pixels */ + nxgl_coord_t height; /**< Height in rows */ + uint16_t stride; /**< Width in bytes */ + FAR const void *data; /**< Pointer to the beginning of pixel data */ + }; + + /** + * Class providing bitmap accessor for a bitmap represented by SBitmap. + */ + + class CBitmap : public IBitmap + { + protected: + const struct SBitmap *m_bitmap; /**< The bitmap that is being managed */ + + /** + * Copy constructor is protected to prevent usage. + */ + + inline CBitmap(const CBitmap &bitmap) { } + + public: + + /** + * Constructor. + * + * @param bitmap The bitmap structure being wrapped. + */ + + CBitmap(const struct SBitmap *bitmap); + + /** + * Destructor. + */ + + inline ~CBitmap(void) {} + + /** + * Get the bitmap's color format. + * + * @return The bitmap's width. + */ + + const uint8_t getColorFormat(void) const; + + /** + * Get the bitmap's color format. + * + * @return The bitmap's color format. + */ + + const uint8_t getBitsPerPixel(void) const; + + /** + * Get the bitmap's width (in pixels/columns). + * + * @return The bitmap's pixel depth. + */ + + const nxgl_coord_t getWidth(void) const; + + /** + * Get the bitmap's height (in rows). + * + * @return The bitmap's height. + */ + + const nxgl_coord_t getHeight(void) const; + + /** + * Get the bitmap's width (in bytes). + * + * @return The bitmap's width. + */ + + const nxgl_coord_t getStride(void) const; + + /** + * Get one row from the bit map image. + * + * @param x The offset into the row to get + * @param y The row number to get + * @param width The number of pixels to get from the row + * @param data The memory location provided by the caller + * in which to return the data. This should be at least + * (getWidth()*getBitsPerPixl() + 7)/8 bytes in length + * and properly aligned for the pixel color format. + * @param True if the run was returned successfully. + */ + + bool getRun(nxgl_coord_t x, nxgl_coord_t y, nxgl_coord_t width, + FAR void *data); + }; +} + +#endif // __cplusplus + +#endif // __INCLUDE_CBITMAP_HXX |