diff options
Diffstat (limited to 'nuttx/graphics/nxglib/lcd')
| -rw-r--r-- | nuttx/graphics/nxglib/lcd/nxglib_copyrectangle.c | 141 | ||||
| -rw-r--r-- | nuttx/graphics/nxglib/lcd/nxglib_fillrectangle.c | 111 | ||||
| -rw-r--r-- | nuttx/graphics/nxglib/lcd/nxglib_filltrapezoid.c | 259 | ||||
| -rw-r--r-- | nuttx/graphics/nxglib/lcd/nxglib_getrectangle.c | 105 | ||||
| -rw-r--r-- | nuttx/graphics/nxglib/lcd/nxglib_moverectangle.c | 131 | ||||
| -rw-r--r-- | nuttx/graphics/nxglib/lcd/nxglib_setpixel.c | 153 |
6 files changed, 900 insertions, 0 deletions
diff --git a/nuttx/graphics/nxglib/lcd/nxglib_copyrectangle.c b/nuttx/graphics/nxglib/lcd/nxglib_copyrectangle.c new file mode 100644 index 000000000..988b6cb94 --- /dev/null +++ b/nuttx/graphics/nxglib/lcd/nxglib_copyrectangle.c @@ -0,0 +1,141 @@ +/**************************************************************************** + * graphics/nxglib/lcd/nxsglib_copyrectangle.c + * + * Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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 <stdint.h> +#include <assert.h> + +#include <nuttx/lcd/lcd.h> +#include <nuttx/nx/nxglib.h> + +#include "nxglib_bitblit.h" +#include "nxglib_copyrun.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxgl_copyrectangle_*bpp + * + * Descripton: + * Copy a rectangular bitmap image into the specific position in the + * framebuffer memory. + * + ****************************************************************************/ + +void NXGL_FUNCNAME(nxgl_copyrectangle,NXGLIB_SUFFIX) +(FAR struct lcd_planeinfo_s *pinfo, FAR const struct nxgl_rect_s *dest, + FAR const void *src, FAR const struct nxgl_point_s *origin, + unsigned int srcstride) +{ + FAR const uint8_t *sline; + unsigned int ncols; + unsigned int row; + unsigned int xoffset; +#if NXGLIB_BITSPERPIXEL < 8 + unsigned int remainder; +#endif + + /* Get the dimensions of the rectange to fill: width in pixels, + * height in rows + */ + + ncols = dest->pt2.x - dest->pt1.x + 1; + + /* Set up to copy the image */ + + xoffset = dest->pt1.x - origin->x; + sline = (const uint8_t*)src + NXGL_SCALEX(xoffset) + (dest->pt1.y - origin->y) * srcstride; +#if NXGLIB_BITSPERPIXEL < 8 + remainder = NXGL_REMAINDERX(xoffset); +#endif + + /* Copy the image, one row at a time */ + + for (row = dest->pt1.y; row <= dest->pt2.y; row++) + { +#if NXGLIB_BITSPERPIXEL < 8 + /* if the source pixel is not aligned with a byte boundary, then we will + * need to copy the image data to the run buffer first. + */ + + if (remainder != 0) + { + NXGL_FUNCNAME(nxgl_copyrun,NXGLIB_SUFFIX)(sline, pinfo->buffer, remainder, ncols); + (void)pinfo->putrun(row, dest->pt1.x, pinfo->buffer, ncols); + } + else +#endif + { + /* The pixel data is byte aligned. Copy the image data directly from + * the image memory. + */ + + (void)pinfo->putrun(row, dest->pt1.x, sline, ncols); + } + + /* Then adjust the source pointer to refer to the next line in the source + * image. + */ + + sline += srcstride; + } +} diff --git a/nuttx/graphics/nxglib/lcd/nxglib_fillrectangle.c b/nuttx/graphics/nxglib/lcd/nxglib_fillrectangle.c new file mode 100644 index 000000000..c1a30d66f --- /dev/null +++ b/nuttx/graphics/nxglib/lcd/nxglib_fillrectangle.c @@ -0,0 +1,111 @@ +/**************************************************************************** + * graphics/nxglib/lcd/nxglib_fillrectangle.c + * + * Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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 <sys/types.h> +#include <stdint.h> + +#include <nuttx/lcd/lcd.h> +#include <nuttx/nx/nxglib.h> + +#include "nxglib_bitblit.h" +#include "nxglib_fillrun.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +#ifndef NXGLIB_SUFFIX +# error "NXGLIB_SUFFIX must be defined before including this header file" +#endif + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxgl_fillrectangle_*bpp + * + * Descripton: + * Fill a rectangle region in the LCD memory with a fixed color + * + ****************************************************************************/ + +void NXGL_FUNCNAME(nxgl_fillrectangle,NXGLIB_SUFFIX) + (FAR struct lcd_planeinfo_s *pinfo, + FAR const struct nxgl_rect_s *rect, + NXGL_PIXEL_T color) +{ + unsigned int ncols; + unsigned int row; + + /* Get the dimensions of the rectange to fill in pixels */ + + ncols = rect->pt2.x - rect->pt1.x + 1; + + /* Fill the run buffer with the selected color */ + + NXGL_FUNCNAME(nxgl_fillrun,NXGLIB_SUFFIX)((NXGLIB_RUNTYPE*)pinfo->buffer, color, ncols); + + /* Then fill the rectangle line-by-line */ + + for (row = rect->pt1.y; row <= rect->pt2.y; row++) + { + /* Draw the raster line at this row */ + + (void)pinfo->putrun(row, rect->pt1.x, pinfo->buffer, ncols); + } +} diff --git a/nuttx/graphics/nxglib/lcd/nxglib_filltrapezoid.c b/nuttx/graphics/nxglib/lcd/nxglib_filltrapezoid.c new file mode 100644 index 000000000..3ba44b34a --- /dev/null +++ b/nuttx/graphics/nxglib/lcd/nxglib_filltrapezoid.c @@ -0,0 +1,259 @@ +/**************************************************************************** + * graphics/nxglib/lcd/nxglib_filltrapezoid.c + * + * Copyright (C) 2010-2012 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 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 <stdint.h> +#include <fixedmath.h> + +#include <nuttx/lcd/lcd.h> +#include <nuttx/nx/nxglib.h> + +#include "nxglib_bitblit.h" +#include "nxglib_fillrun.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +#ifndef NXGLIB_SUFFIX +# error "NXGLIB_SUFFIX must be defined before including this header file" +#endif + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxglib_filltrapezoid_*bpp + * + * Descripton: + * Fill a trapezoidal region in the LCD memory with a fixed color. + * Clip the trapezoid to lie within a boundng box. This is useful for + * drawing complex shapes that can be broken into a set of trapezoids. + * + ****************************************************************************/ + +void NXGL_FUNCNAME(nxgl_filltrapezoid,NXGLIB_SUFFIX) + (FAR struct lcd_planeinfo_s *pinfo, + FAR const struct nxgl_trapezoid_s *trap, + FAR const struct nxgl_rect_s *bounds, + NXGL_PIXEL_T color) +{ + unsigned int ncols; + unsigned int topy; + unsigned int boty; + unsigned int row; + unsigned int botw; + b16_t topx1; + b16_t topx2; + b16_t botx1; + b16_t botx2; + b16_t dx1dy; + b16_t dx2dy; + int dy; + int ix1; + int ix2; + + /* Get the top run endpoints */ + + topx1 = trap->top.x1; + topx2 = trap->top.x2; + + /* Calculate the number of rows to render */ + + topy = trap->top.y; + boty = trap->bot.y; + + /* Get the bottom run endpoints */ + + botx1 = trap->bot.x1; + botx2 = trap->bot.x2; + + /* Calculate the slope of the left and right side of the trapezoid */ + + dy = boty - topy; + if (dy > 0) + { + dx1dy = b16divi((botx1 - topx1), dy); + dx2dy = b16divi((botx2 - topx2), dy); + } + else + { + /* The trapezoid is a run! Use the average width. */ + + topx1 = (topx1 + botx1) >> 1; + topx2 = (topx2 + botx2) >> 1; + botx1 = topx1; + botx2 = topx2; + dx1dy = 0; + dx2dy = 0; + } + + /* Perform vertical clipping */ + + if (topy < bounds->pt1.y) + { + /* Is the entire trapezoid "above" the clipping window? */ + + if (boty < bounds->pt1.y) + { + /* Yes.. then do nothing */ + + return; + } + + /* Calculate the x values for the new top run */ + + dy = bounds->pt1.y - topy; + topx1 += dy * dx1dy; + topx2 += dy * dx2dy; + + /* Clip the top row to render */ + + topy = bounds->pt1.y; + } + + if (boty > bounds->pt2.y) + { + /* Is the entire trapezoid "below" the clipping window? */ + + if (topy > bounds->pt2.y) + { + /* Yes.. then do nothing */ + + return; + } + + /* Calculate the x values for the new bottom run */ + + dy = boty - bounds->pt2.y; + botx1 -= dy * dx1dy; + botx2 -= dy * dx2dy; + + /* Clip the bottom row to render */ + + boty = bounds->pt2.y; + } + + /* Handle the special case where the sides cross (as in an hourglass) */ + + if (botx1 > botx2) + { + b16_t tmp; + ngl_swap(botx1, botx2, tmp); + } + + /* Fill the run buffer for the maximum run that we will need */ + + ix1 = b16toi(topx1); + ix1 = ngl_clipl(ix1, bounds->pt1.x); + ix2 = b16toi(topx2); + ix2 = ngl_clipr(ix2, bounds->pt2.x); + ncols = ix2 - ix1 + 1; + + ix1 = b16toi(botx1); + ix1 = ngl_clipl(ix1, bounds->pt1.x); + ix2 = b16toi(botx2); + ix2 = ngl_clipr(ix2, bounds->pt2.x); + botw = ix2 - ix1 + 1; + + if (ncols < botw) + { + ncols = botw; + } + + NXGL_FUNCNAME(nxgl_fillrun,NXGLIB_SUFFIX)((NXGLIB_RUNTYPE*)pinfo->buffer, color, ncols); + + /* Then fill the trapezoid row-by-row */ + + for (row = topy; row <= boty; row++) + { + /* Handle the special case where the sides cross (as in an hourglass) */ + + if (topx1 > topx2) + { + b16_t tmp; + ngl_swap(topx1, topx2, tmp); + ngl_swap(dx1dy, dx2dy, tmp); + } + + /* Convert the positions to integer and get the run width, clipping to + * fit within the bounding box. + */ + + ix1 = b16toi(topx1); + ix1 = ngl_clipl(ix1, bounds->pt1.x); + ix2 = b16toi(topx2); + ix2 = ngl_clipr(ix2, bounds->pt2.x); + + /* Handle some corner cases where we draw nothing. Otherwise, we will + * always draw at least one pixel. + */ + + if (ix1 <= ix2) + { + /* Then draw the run from ix1 to ix2 at row */ + + ncols = ix2 - ix1 + 1; + (void)pinfo->putrun(row, ix1, pinfo->buffer, ncols); + } + + /* Add the dx/dy value to get the run positions on the next row */ + + topx1 += dx1dy; + topx2 += dx2dy; + } +} diff --git a/nuttx/graphics/nxglib/lcd/nxglib_getrectangle.c b/nuttx/graphics/nxglib/lcd/nxglib_getrectangle.c new file mode 100644 index 000000000..9318426ba --- /dev/null +++ b/nuttx/graphics/nxglib/lcd/nxglib_getrectangle.c @@ -0,0 +1,105 @@ +/**************************************************************************** + * graphics/nxglib/lcd/nxglib_getrectangle.c + * + * Copyright (C) 2011 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 <stdint.h> + +#include <nuttx/lcd/lcd.h> +#include <nuttx/nx/nxglib.h> + +#include "nxglib_bitblit.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxgl_moverectangle_*bpp + * + * Descripton: + * Fetch a rectangular region from LCD GRAM memory. The source is + * expressed as a rectangle. + * + ****************************************************************************/ + +void NXGL_FUNCNAME(nxgl_getrectangle,NXGLIB_SUFFIX) +(FAR struct lcd_planeinfo_s *pinfo, FAR const struct nxgl_rect_s *rect, + FAR void *dest, unsigned int deststride) +{ + FAR uint8_t *dline; + unsigned int ncols; + unsigned int srcrow; + + /* Get the width of the rectange to move in pixels. */ + + ncols = rect->pt2.x - rect->pt1.x + 1; + + /* dline = address of the first row pixel */ + + dline = (FAR uint8_t *)dest; + + /* Copy the rectangle */ + + for (srcrow = rect->pt1.y; srcrow <= rect->pt2.y; srcrow++) + { + (void)pinfo->getrun(srcrow, rect->pt1.x, dline, ncols); + dline += deststride; + } +} diff --git a/nuttx/graphics/nxglib/lcd/nxglib_moverectangle.c b/nuttx/graphics/nxglib/lcd/nxglib_moverectangle.c new file mode 100644 index 000000000..f82187ae3 --- /dev/null +++ b/nuttx/graphics/nxglib/lcd/nxglib_moverectangle.c @@ -0,0 +1,131 @@ +/**************************************************************************** + * graphics/nxglib/lcd/nxglib_moverectangle.c + * + * Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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 <stdint.h> + +#include <nuttx/lcd/lcd.h> +#include <nuttx/nx/nxglib.h> + +#include "nxglib_bitblit.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxgl_moverectangle_*bpp + * + * Descripton: + * Move a rectangular region from location to another in the + * LCD memory. The source is expressed as a rectangle; the + * destination position is expressed as a point corresponding to the + * translation of the upper, left-hand corner. + * + ****************************************************************************/ + +void NXGL_FUNCNAME(nxgl_moverectangle,NXGLIB_SUFFIX) +(FAR struct lcd_planeinfo_s *pinfo, FAR const struct nxgl_rect_s *rect, + FAR struct nxgl_point_s *offset) +{ + unsigned int ncols; + unsigned int srcrow; + unsigned int destrow; + + /* Get the width of the rectange to move in pixels. */ + + ncols = rect->pt2.x - rect->pt1.x + 1; + + /* Case 1: The destination position (offset) is above the displayed + * position (rect) + */ + + if (offset->y < rect->pt1.y) + { + /* Copy the rectangle from top down */ + + for (srcrow = rect->pt1.y, destrow = offset->y; + srcrow <= rect->pt2.y; + srcrow++, destrow++) + { + (void)pinfo->getrun(srcrow, rect->pt1.x, pinfo->buffer, ncols); + (void)pinfo->putrun(destrow, offset->x, pinfo->buffer, ncols); + } + } + + /* Case 2: The destination position (offset) is below the displayed + * position (rect) + */ + + else + { + unsigned int dy = rect->pt2.y - rect->pt1.y; + + /* Copy the rectangle from the bottom up */ + + for (srcrow = rect->pt2.y, destrow = offset->y + dy; + srcrow >= rect->pt1.y; + srcrow--, destrow--) + { + (void)pinfo->getrun(srcrow, rect->pt1.x, pinfo->buffer, ncols); + (void)pinfo->putrun(destrow, offset->x, pinfo->buffer, ncols); + } + } +} diff --git a/nuttx/graphics/nxglib/lcd/nxglib_setpixel.c b/nuttx/graphics/nxglib/lcd/nxglib_setpixel.c new file mode 100644 index 000000000..c5cff99a7 --- /dev/null +++ b/nuttx/graphics/nxglib/lcd/nxglib_setpixel.c @@ -0,0 +1,153 @@ +/**************************************************************************** + * graphics/nxglib/lcd/nxglib_setpixel.c + * + * Copyright (C) 2011 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 <sys/types.h> +#include <stdint.h> + +#include <nuttx/lcd/lcd.h> +#include <nuttx/nx/nxglib.h> + +#include "nxglib_bitblit.h" + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +#ifndef NXGLIB_SUFFIX +# error "NXGLIB_SUFFIX must be defined before including this header file" +#endif + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: nxgl_setpixel_*bpp + * + * Descripton: + * Draw a single pixel in LCD memory at the given position and with the + * given color. This is equivalent to nxgl_fillrectangle_*bpp() with a 1x1 + * rectangle but is more efficient. + * + ****************************************************************************/ + +void NXGL_FUNCNAME(nxgl_setpixel,NXGLIB_SUFFIX) + (FAR struct lcd_planeinfo_s *pinfo, + FAR const struct nxgl_point_s *pos, + NXGL_PIXEL_T color) +{ +#if NXGLIB_BITSPERPIXEL < 8 + uint8_t shift; + uint8_t mask; + uint8_t pixel; + + /* Read the byte that contains the pixel to be changed */ + + (void)pinfo->getrun(pos->y, pos->x, &pixel, 8 / NXGLIB_BITSPERPIXEL); + + /* Shift the color into the proper position */ + +# ifdef CONFIG_NX_PACKEDMSFIRST + +#if NXGLIB_BITSPERPIXEL == 1 + shift = (7 - (pos->x & 7)); /* Shift is 0, 1, ... 7 */ + mask = (1 << shift); /* Mask is 0x01, 0x02, .. 0x80 */ + color <<= shift; /* Color is positioned under the mask */ +#elif NXGLIB_BITSPERPIXEL == 2 + shift = (6 - ((pos->x & 3) << 1)); /* Shift is 0, 2, 4, or 6 */ + mask = (3 << shift); /* Mask is 0x03, 0x0c, 0x30, or 0xc0 */ + color <<= shift; /* Color is positioned under the mask */ +#elif NXGLIB_BITSPERPIXEL == 4 + shift = (4 - ((pos->x & 1) << 2)); /* Shift is 0 or 4 */ + mask = (15 << shift); /* Mask is 0x0f or 0xf0 */ + color <<= shift; /* Color is positioned under the mask */ +#else +# error "Unsupport pixel depth" +#endif + +# else /* CONFIG_NX_PACKEDMSFIRST */ + +#if NXGLIB_BITSPERPIXEL == 1 + shift = (pos->x & 7); /* Shift is 0, 1, ... 7 */ + mask = (1 << shift); /* Mask is 0x01, 0x02, .. 0x80 */ + color <<= shift; /* Color is positioned under the mask */ +#elif NXGLIB_BITSPERPIXEL == 2 + shift = (pos->x & 3) << 1; /* Shift is 0, 2, 4, or 6 */ + mask = (3 << shift); /* Mask is 0x03, 0x0c, 0x30, or 0xc0 */ + color <<= shift; /* Color is positioned under the mask */ +#elif NXGLIB_BITSPERPIXEL == 4 + shift = (pos->x & 1) << 2; /* Shift is 0 or 4 */ + mask = (15 << shift); /* Mask is 0x0f or 0xf0 */ + color <<= shift; /* Color is positioned under the mask */ +#else +# error "Unsupport pixel depth" +#endif +#endif /* CONFIG_NX_PACKEDMSFIRST */ + + /* Handle masking of the fractional byte */ + + pixel = (pixel & ~mask) | (color & mask); + + /* Write the modified byte back to graphics memory */ + + (void)pinfo->putrun(pos->y, pos->x, (FAR uint8_t *)&pixel, 8 / NXGLIB_BITSPERPIXEL); +#else + /* Draw a single pixel at this position raster line at this row */ + + (void)pinfo->putrun(pos->y, pos->x, (FAR uint8_t *)&color, 1); +#endif +} |