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- /****************************************************************************
- * graphics/nxglib/nxsglib_fullrun.h
- *
- * Copyright (C) 2010 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.
- *
- ****************************************************************************/
- #ifndef __GRAPHICS_NXGLIB_NXGLIB_FILLRUN_H
- #define __GRAPHICS_NXGLIB_NXGLIB_FILLRUN_H
- /****************************************************************************
- * Included Files
- ****************************************************************************/
- #include <nuttx/config.h>
- #include <stdint.h>
- #include <string.h>
- /****************************************************************************
- * Pre-Processor Definitions
- ****************************************************************************/
- #if NXGLIB_BITSPERPIXEL < 16
- # define NXGLIB_RUNTYPE uint8_t
- #elif NXGLIB_BITSPERPIXEL == 16
- # define NXGLIB_RUNTYPE uint16_t
- #else
- # define NXGLIB_RUNTYPE uint32_t
- #endif
- /****************************************************************************
- * Private Types
- ****************************************************************************/
- /****************************************************************************
- * Private Data
- ****************************************************************************/
- #if NXGLIB_BITSPERPIXEL == 2
- static uint8_t g_wide_2bpp[4] = { 0x00, 0x55, 0xaa, 0xff };
- #endif
- /****************************************************************************
- * Public Data
- ****************************************************************************/
- /****************************************************************************
- * Private Functions
- ****************************************************************************/
- /****************************************************************************
- * Public Functions
- ****************************************************************************/
- /****************************************************************************
- * Name: nxgl_fillrun_*bpp
- *
- * Description:
- * fill a run with the specified color.
- *
- ****************************************************************************/
- #if NXGLIB_BITSPERPIXEL == 1
- static inline void nxgl_fillrun_1bpp(FAR uint8_t *run, nxgl_mxpixel_t color,
- size_t npixels)
- {
- /* Get the number of bytes to fill */
- unsigned int nbytes = (npixels + 7) >> 3;
- /* Get the value of the byte to fill */
- uint8_t wide = (color & 1) != 0 ? 0xff : 0x00;
- /* Fill the run with the color (it is okay to run a fractional byte over
- * the end)
- */
- memset(run, wide, nbytes);
- }
- #elif NXGLIB_BITSPERPIXEL == 2
- static inline void nxgl_fillrun_2bpp(FAR uint8_t *run, nxgl_mxpixel_t color,
- size_t npixels)
- {
- /* Get the number of bytes to fill */
- unsigned int nbytes = (npixels + 3) >> 2;
- /* Get the value of the byte to fill */
- uint8_t wide = g_wide_2bpp[color & 3];
- /* Fill the run with the color (it is okay to run a fractional byte over
- * the end)
- */
- memset(run, wide, nbytes);
- }
- #elif NXGLIB_BITSPERPIXEL == 4
- static inline void nxgl_fillrun_4bpp(FAR uint8_t *run, nxgl_mxpixel_t color,
- size_t npixels)
- {
- /* Get the number of bytes to fill */
- unsigned int nbytes = (npixels + 1) >> 1;
- /* Get the value of the byte to fill */
- uint8_t narrow = (uint8_t)color & 0x0f;
- uint8_t wide = narrow | (narrow << 4);
- /* Fill the run with the color (it is okay to run a fractional byte over
- * the end)
- */
- memset(run, wide, nbytes);
- }
- #elif NXGLIB_BITSPERPIXEL == 8
- static inline void nxgl_fillrun_8bpp(FAR uint8_t *run, nxgl_mxpixel_t color,
- size_t npixels)
- {
- /* Fill the run with the color (it is okay to run a fractional byte overy the end */
- memset(run, color, npixels);
- }
- #elif NXGLIB_BITSPERPIXEL == 16
- static inline void nxgl_fillrun_16bpp(FAR uint16_t *run, nxgl_mxpixel_t color,
- size_t npixels)
- {
- /* Fill the run with the color (it is okay to run a fractional byte overy the end */
- while (npixels-- > 0)
- {
- *run++ = (uint16_t)color;
- }
- }
- #elif NXGLIB_BITSPERPIXEL == 24
- static inline void nxgl_fillrun_24bpp(FAR uint32_t *run, nxgl_mxpixel_t color, size_t npixels)
- {
- /* Fill the run with the color (it is okay to run a fractional byte overy the end */
- #warning "Assuming 24-bit color is not packed"
- while (npixels-- > 0)
- {
- *run++ = (uint32_t)color;
- }
- }
- #elif NXGLIB_BITSPERPIXEL == 32
- static inline void nxgl_fillrun_32bpp(FAR uint32_t *run, nxgl_mxpixel_t color, size_t npixels)
- {
- /* Fill the run with the color (it is okay to run a fractional byte overy the end */
- while (npixels-- > 0)
- {
- *run++ = (uint32_t)color;
- }
- }
- #else
- # error "Unsupported value of NXGLIB_BITSPERPIXEL"
- #endif
- #endif /* __GRAPHICS_NXGLIB_NXGLIB_FILLRUN_H */
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