/**************************************************************************** * graphics/nxglib/nxglib_fullrun.h * * Copyright (C) 2010 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. * ****************************************************************************/ #ifndef __GRAPHICS_NXGLIB_NXGLIB_FILLRUN_H #define __GRAPHICS_NXGLIB_NXGLIB_FILLRUN_H /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include /**************************************************************************** * 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 */