+++ /dev/null
-/*!
- * \file
- * <!--
- * Copyright 2003, 2004, 2005 Develer S.r.l. (http://www.develer.com/)
- * Copyright 1999 Bernardo Innocenti <bernie@develer.com>
- * This file is part of DevLib - See README.devlib for information.
- * -->
- *
- * \brief Text graphic routines
- *
- * \version $Id$
- * \author Bernardo Innocenti <bernie@develer.com>
- * \author Stefano Fedrigo <aleph@develer.com>
- */
-
-/*#*
- *#* $Log$
- *#* 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 <cfg/debug.h>
-
-
-/*!
- * Flags degli stili algoritmici
- *
- * La routine di rendering del testo e' in grado di applicare
- * delle semplici trasformazioni al font interno per generare
- * automaticamente degli stili predefiniti (bold, italic,
- * underline) a partire dal set di caratteri plain.
- */
-static uint8_t text_styles;
-
-/*! ANSI escape sequences flag: true for ESC state on */
-static bool ansi_mode = false;
-
-
-/*!
- * 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 / FONT_WIDTH);
- ASSERT(row >= 0);
- ASSERT(row < bm->height / FONT_HEIGHT);
-
- bm->penX = col * FONT_WIDTH;
- bm->penY = row * FONT_HEIGHT;
-}
-
-
-/*!
- * Move (imaginary) cursor to coordinates specified.
- */
-void text_setcoord(struct Bitmap *bm, int x, int y)
-{
- bm->penX = x;
- bm->penY = y;
-}
-
-
-/*!
- * 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;
- uint8_t i;
- uint8_t *buf;
-
- /*
- * Il carattere da stampare viene usato come indice per prelevare
- * la prima colonna di dots del glyph all'interno del font.
- */
- glyph = font + (((unsigned char)c) * FONT_WIDTH);
- glyph_width = FONT_WIDTH;
-
- if (text_styles & STYLEF_CONDENSED)
- --glyph_width;
-
- if (text_styles & STYLEF_EXPANDED)
- glyph_width *= 2;
-
- /* The y coord is rounded at multiples of 8 for simplicity */
- bm->penY &= ~((coord_t)7);
-
- /* Check if glyph to write fits in the bitmap */
- if ((bm->penX < 0) || (bm->penX + glyph_width > bm->width) ||
- (bm->penY < 0) || (bm->penY + FONT_HEIGHT > bm->height))
- {
- DB(kprintf("bad coords x=%d y=%d\n", bm->penX, bm->penY);)
- return 0;
- }
-
- /* Locate position where to write in the raster */
- buf = bm->raster + bm->penY / 8 * bm->width + bm->penX;
-
- bm->penX += glyph_width;
-
- /* If some styles are set */
- if (text_styles)
- {
- uint8_t prev_dots = 0, italic_prev_dots = 0, new_dots;
- uint8_t dots;
-
- /* Per ogni colonna di dot del glyph... */
- for (i = 0; i < glyph_width; ++i)
- {
- dots = PGM_READ_CHAR(glyph);
-
- /* Advance to next column in glyph.
- * Expand: advances only once every two columns
- */
- if (!(text_styles & STYLEF_EXPANDED) || (i & 1))
- glyph++;
-
- /* Italic: get lower 4 dots from previous column */
- if (text_styles & STYLEF_ITALIC)
- {
- new_dots = dots;
- dots = (dots & 0xF0) | italic_prev_dots;
- italic_prev_dots = new_dots & 0x0F;
- }
-
- /* Bold: "or" pixels with the previous column */
- if (text_styles & STYLEF_BOLD)
- {
- new_dots = dots;
- dots |= prev_dots;
- prev_dots = new_dots;
- }
-
- /* Underlined: turn on base pixel */
- if (text_styles & STYLEF_UNDERLINE)
- dots |= 0x80;
-
- /* Inverted: invert pixels */
- if (text_styles & STYLEF_INVERT)
- dots = ~dots;
-
- /* Output dots */
- *buf++ = dots;
- }
- }
- else /* No style: fast vanilla copy of glyph to line buffer */
- while (glyph_width--)
- *buf++ = PGM_READ_CHAR(glyph++);
-
- 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 (ansi_mode)
- {
- switch (c)
- {
- case ANSI_ESC_CLEARSCREEN:
- gfx_bitmapClear(bm);
- bm->penX = 0;
- bm->penY = 0;
- text_style(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 + FONT_HEIGHT < bm->height)
- {
- bm->penY += 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 *bmp, int line)
-{
- gfx_rectClear(bmp, 0, line * FONT_HEIGHT, bmp->width, (line + 1) * FONT_HEIGHT);
-}
-
-
-/*!
- * Set/clear algorithmic font style bits.
- *
- * \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 prt_style(STYLEF_BOLD, STYLEF_BOLD); \endcode
- *
- * Turn off bold and turn on italic, leave others as they are
- * \code prt_style(STYLEF_ITALIC, STYLEF_BOLD | STYLEF_ITALIC); \endcode
- *
- * Query current style without chaning it
- * \code style = prt_style(0, 0); \endcode
- *
- * Reset all styles (plain text)
- * \code prt_style(0, STYLE_MASK); \endcode
- */
-uint8_t text_style(uint8_t flags, uint8_t mask)
-{
- uint8_t old = text_styles;
- text_styles = (text_styles & ~mask) | flags;
- return old;
-}
projects / bertos.git / blobdiff