+++ /dev/null
-/**
- * \file
- * <!--
- * This file is part of BeRTOS.
- *
- * Bertos is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * As a special exception, you may use this file as part of a free software
- * library without restriction. Specifically, if other files instantiate
- * templates or use macros or inline functions from this file, or you compile
- * this file and link it with other files to produce an executable, this
- * file does not by itself cause the resulting executable to be covered by
- * the GNU General Public License. This exception does not however
- * invalidate any other reasons why the executable file might be covered by
- * the GNU General Public License.
- *
- * Copyright 2003, 2004, 2005 Develer S.r.l. (http://www.develer.com/)
- * Copyright 1999 Bernardo Innocenti <bernie@develer.com>
- *
- * -->
- *
- * \brief Text graphic routines
- *
- * \version $Id$
- * \author Bernardo Innocenti <bernie@develer.com>
- * \author Stefano Fedrigo <aleph@develer.com>
- */
-
-/*#*
- *#* $Log$
- *#* Revision 1.13 2006/07/19 12:56:26 bernie
- *#* Convert to new Doxygen style.
- *#*
- *#* Revision 1.12 2006/05/25 23:35:22 bernie
- *#* Implement correct and faster clipping for algo text.
- *#*
- *#* Revision 1.11 2006/05/15 07:21:06 bernie
- *#* Doxygen fix.
- *#*
- *#* Revision 1.10 2006/04/27 05:39:23 bernie
- *#* Enhance text rendering to arbitrary x,y coords.
- *#*
- *#* Revision 1.9 2006/04/11 00:08:24 bernie
- *#* text_offset(): New function, but I'm not quite confident with the design.
- *#*
- *#* Revision 1.8 2006/03/22 09:50:37 bernie
- *#* Use the same format for fonts and rasters.
- *#*
- *#* Revision 1.7 2006/03/20 17:51:55 bernie
- *#* Cleanups.
- *#*
- *#* Revision 1.6 2006/03/13 02:05:54 bernie
- *#* Mark slow paths as UNLIKELY.
- *#*
- *#* Revision 1.5 2006/03/07 22:18:04 bernie
- *#* Correctly compute text width for prop fonts; Make styles a per-bitmap attribute.
- *#*
- *#* Revision 1.4 2006/02/15 09:10:15 bernie
- *#* Implement prop fonts; Fix algo styles.
- *#*
- *#* Revision 1.3 2006/02/10 12:31:55 bernie
- *#* Add multiple font support in bitmaps.
- *#*
- *#* Revision 1.2 2005/11/04 18:17:45 bernie
- *#* Fix header guards and includes for new location of gfx module.
- *#*
- *#* Revision 1.1 2005/11/04 18:11:35 bernie
- *#* Move graphics stuff from mware/ to gfx/.
- *#*
- *#* Revision 1.13 2005/11/04 16:20:02 bernie
- *#* Fix reference to README.devlib in header.
- *#*
- *#* Revision 1.12 2005/04/11 19:10:28 bernie
- *#* Include top-level headers from cfg/ subdir.
- *#*
- *#* Revision 1.11 2005/01/20 18:46:31 aleph
- *#* Fix progmem includes.
- *#*
- *#* Revision 1.10 2005/01/08 09:20:12 bernie
- *#* Really make it work on both architectures.
- *#*
- *#* Revision 1.9 2004/12/31 16:44:29 bernie
- *#* Sanitize for non-Harvard processors.
- *#*
- *#* Revision 1.8 2004/11/16 21:16:28 bernie
- *#* Update to new naming scheme in mware/gfx.c.
- *#*
- *#* Revision 1.7 2004/09/20 03:28:28 bernie
- *#* Fix header.
- *#*
- *#* Revision 1.6 2004/09/14 20:57:15 bernie
- *#* Use debug.h instead of kdebug.h.
- *#*
- *#* Revision 1.5 2004/09/06 21:51:26 bernie
- *#* Extend interface to allow any algorithmic style.
- *#*
- *#* Revision 1.2 2004/06/03 11:27:09 bernie
- *#* Add dual-license information.
- *#*
- *#* Revision 1.1 2004/05/23 15:43:16 bernie
- *#* Import mware modules.
- *#*
- *#* Revision 1.17 2004/05/15 16:57:01 aleph
- *#* Fixes for non-DEBUG build
- *#*
- *#* Revision 1.16 2004/04/03 20:42:49 aleph
- *#* Add text_clear()
- *#*
- *#* Revision 1.15 2004/03/24 15:03:45 bernie
- *#* Use explicit include paths; clean Doxygen comments
- *#*
- *#* Revision 1.14 2004/03/19 16:52:28 bernie
- *#* Move printf() like functions from text.c to text_format.c and add PROGMEM versions.
- *#*
- *#* Revision 1.13 2004/03/17 18:23:32 bernie
- *#* Oops.
- *#*
- *#* Revision 1.12 2004/03/17 18:03:22 bernie
- *#* Make diagnostic message shorter
- *#*
- *#* Revision 1.11 2004/03/13 22:52:54 aleph
- *#* documentation fixes
- *#*/
-
-#include <gfx/gfx.h>
-#include <gfx/font.h>
-#include <gfx/text.h>
-#include <gfx/text.h>
-
-#include <gfx/gfx_p.h> // FIXME: BM_DRAWPIXEL
-
-#include <cfg/debug.h>
-
-
-/**
- * ANSI escape sequences flag: true for ESC state on.
- *
- * \todo Move to Bitmap.flags.
- */
-static bool ansi_mode = false;
-
-/**
- * Move (imaginary) cursor to coordinates specified.
- */
-void text_setCoord(struct Bitmap *bm, int x, int y)
-{
- bm->penX = x;
- bm->penY = y;
-}
-
-
-/**
- * Move (imaginary) cursor to column and row specified.
- * Next text write will start a that row and col.
- */
-void text_moveTo(struct Bitmap *bm, int row, int col)
-{
- ASSERT(col >= 0);
- ASSERT(col < bm->width / bm->font->width);
- ASSERT(row >= 0);
- ASSERT(row < bm->height / bm->font->height);
-
- text_setCoord(bm, col * bm->font->width, row * bm->font->height);
-}
-
-
-/**
- * Render char \a c on Bitmap \a bm.
- */
-static int text_putglyph(char c, struct Bitmap *bm)
-{
- const uint8_t * PROGMEM glyph; /* font is in progmem */
- uint8_t glyph_width, glyph_height, glyph_height_bytes;
- unsigned char index = (unsigned char)c;
-
- /* Check for out of range char and replace with '?' or first char in font. */
- if (UNLIKELY(!FONT_HAS_GLYPH(bm->font, index)))
- {
- kprintf("Illegal char '%c' (0x%02x)\n", index, index);
- if (FONT_HAS_GLYPH(bm->font, '?'))
- index = '?';
- else
- index = bm->font->first;
- }
-
- /* Make character relative to font start */
- index -= bm->font->first;
-
- glyph_height = bm->font->height;
- // FIXME: for vertical fonts only
- glyph_height_bytes = (glyph_height + 7) / 8;
-
- if (bm->font->offset)
- {
- /* Proportional font */
- glyph_width = bm->font->widths[index]; /* TODO: optimize away */
- glyph = bm->font->glyph + bm->font->offset[index];
- }
- else
- {
- /*
- * Fixed-width font: compute the first column of pixels
- * of the selected glyph using the character code to index
- * the glyph array.
- */
- glyph_width = bm->font->width;
-
- //For horizontal fonts
- //glyph = bm->font->glyph + index * (((glyph_width + 7) / 8) * glyph_height);
- glyph = bm->font->glyph + index * glyph_height_bytes * glyph_width;
- }
-
- /* Slow path for styled glyphs */
- if (UNLIKELY(bm->styles))
- {
- uint8_t styles = bm->styles;
- uint8_t prev_dots = 0, italic_prev_dots = 0;
- uint8_t dots;
- uint8_t row, col, row_bit;
-
- /*
- * To avoid repeating clipping and other expensive computations,
- * we cluster calls to gfx_blitRaster() using a small buffer.
- */
- #define CONFIG_TEXT_RENDER_OPTIMIZE 1
- #if CONFIG_TEXT_RENDER_OPTIMIZE
- #define RENDER_BUF_WIDTH 12
- #define RENDER_BUF_HEIGHT 8
- uint8_t render_buf[RAST_SIZE(RENDER_BUF_WIDTH, RENDER_BUF_HEIGHT)];
- uint8_t render_xpos = 0;
- #endif
-
- /* This style alone could be handled by the fast path too */
- if (bm->styles & STYLEF_CONDENSED)
- --glyph_width;
-
- if (bm->styles & STYLEF_EXPANDED)
- glyph_width *= 2;
-
- for (row = 0, row_bit = 0; row < glyph_height_bytes; ++row, row_bit += 8)
- {
- /* For each dot column in the glyph... */
- for (col = 0; col < glyph_width; ++col)
- {
- uint8_t src_col = col;
-
- /* Expanded style: advances only once every two columns. */
- if (styles & STYLEF_EXPANDED)
- src_col /= 2;
-
- /* Fetch a column of dots from glyph. */
- dots = PGM_READ_CHAR(RAST_ADDR(glyph, src_col, row_bit, glyph_width));
-
- /* Italic: get lower 4 dots from previous column */
- if (styles & STYLEF_ITALIC)
- {
- uint8_t new_dots = dots;
- dots = (dots & 0xF0) | italic_prev_dots;
- italic_prev_dots = new_dots & 0x0F;
- }
-
- /* Bold: "or" pixels with the previous column */
- if (styles & STYLEF_BOLD)
- {
- uint8_t new_dots = dots;
- dots |= prev_dots;
- prev_dots = new_dots;
- }
-
- /* Underlined: turn on base pixel */
- if ((styles & STYLEF_UNDERLINE)
- && (row == glyph_height_bytes - 1))
- dots |= (1 << (glyph_height - row_bit - 1));
-
- /* Inverted: invert pixels */
- if (styles & STYLEF_INVERT)
- dots = ~dots;
-
- /* Output dots */
- #if CONFIG_TEXT_RENDER_OPTIMIZE
- render_buf[render_xpos++] = dots;
- if (render_xpos == RENDER_BUF_WIDTH)
- {
- gfx_blitRaster(bm, bm->penX + col - render_xpos + 1, bm->penY + row_bit,
- render_buf, render_xpos,
- MIN((uint8_t)RENDER_BUF_HEIGHT, (uint8_t)(glyph_height - row_bit)),
- RENDER_BUF_WIDTH);
- render_xpos = 0;
- }
- #else
- gfx_blitRaster(bm, bm->penX + col, bm->penY + row_bit,
- &dots, 1, MIN((uint8_t)8, glyph_height - row_bit), 1);
- #endif
- }
-
- #if CONFIG_TEXT_RENDER_OPTIMIZE
- /* Flush out rest of render buffer */
- if (render_xpos != 0)
- {
- gfx_blitRaster(bm, bm->penX + col - render_xpos, bm->penY + row_bit,
- render_buf, render_xpos,
- MIN((uint8_t)RENDER_BUF_HEIGHT, (uint8_t)(glyph_height - row_bit)),
- RENDER_BUF_WIDTH);
- render_xpos = 0;
- }
- #endif
- }
- }
- else
- {
- /* No style: fast vanilla copy of glyph to bitmap */
- gfx_blitRaster(bm, bm->penX, bm->penY, glyph, glyph_width, glyph_height, glyph_width);
- }
-
- /* Update current pen position */
- bm->penX += glyph_width;
-
- return c;
-}
-
-
-/**
- * Render char \c c, with (currently) limited ANSI escapes
- * emulation support and '\n' for newline.
- */
-int text_putchar(char c, struct Bitmap *bm)
-{
- /* Handle ANSI escape sequences */
- if (UNLIKELY(ansi_mode))
- {
- switch (c)
- {
- case ANSI_ESC_CLEARSCREEN:
- gfx_bitmapClear(bm);
- bm->penX = 0;
- bm->penY = 0;
- text_style(bm, 0, STYLEF_MASK);
- break;
- DB(default:
- kprintf("Unknown ANSI esc code: %x\n", c);)
- }
- ansi_mode = false;
- }
- else if (c == '\033') /* Enter ANSI ESC mode */
- {
- ansi_mode = true;
- }
- else if (c == '\n') /* Go one line down on a line-feed */
- {
- if (bm->penY + bm->font->height < bm->height)
- {
- bm->penY += bm->font->height;
- bm->penX = 0;
- }
- }
- else
- {
- text_putglyph(c, bm);
- }
- return c;
-}
-
-
-/**
- * Clear the screen and reset cursor position
- */
-void text_clear(struct Bitmap *bmp)
-{
- text_putchar('\x1b', bmp);
- text_putchar('c', bmp);
-}
-
-
-void text_clearLine(struct Bitmap *bm, int line)
-{
- gfx_rectClear(bm, 0, line * bm->font->height, bm->width, (line + 1) * bm->font->height);
-}
-
-
-/**
- * Set/clear algorithmic font style bits.
- *
- * \param bm Pointer to Bitmap to affect.
- * \param flags Style flags to set
- * \param mask Mask of flags to modify
- * \return Old style flags
- *
- * Examples:
- * Turn on bold, leave other styles alone
- * \code text_style(bm, STYLEF_BOLD, STYLEF_BOLD); \endcode
- *
- * Turn off bold and turn on italic, leave others as they are
- * \code text_style(bm, STYLEF_ITALIC, STYLEF_BOLD | STYLEF_ITALIC); \endcode
- *
- * Query current style without chaning it
- * \code style = text_style(bm, 0, 0); \endcode
- *
- * Reset all styles (plain text)
- * \code text_style(bm, 0, STYLE_MASK); \endcode
- */
-uint8_t text_style(struct Bitmap *bm, uint8_t flags, uint8_t mask)
-{
- uint8_t old = bm->styles;
- bm->styles = (bm->styles & ~mask) | flags;
- return old;
-}
projects / bertos.git / blobdiff