f5d191388b
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3825 42af7a65-404d-4744-a932-0658087f49c3
376 lines
9.9 KiB
C
376 lines
9.9 KiB
C
/****************************************************************************
|
|
* graphics/nxfonts/nxfonts_getfont.c
|
|
*
|
|
* Copyright (C) 2008-2009, 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 <stddef.h>
|
|
#include <debug.h>
|
|
|
|
#include <nuttx/nx/nx.h>
|
|
#include <nuttx/nx/nxfonts.h>
|
|
|
|
#include "nxfonts_internal.h"
|
|
|
|
/****************************************************************************
|
|
* Pre-Processor Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Types
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Data
|
|
****************************************************************************/
|
|
|
|
/* SANS */
|
|
|
|
#ifdef CONFIG_NXFONT_SANS23X27
|
|
extern const struct nx_fontpackage_s g_sans23x27_package;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SANS22X29
|
|
extern const struct nx_fontpackage_s g_sans22x29_package;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SANS28X37
|
|
extern const struct nx_fontpackage_s g_sans28x37_package;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SANS39X48
|
|
extern const struct nx_fontpackage_s g_sans39x48_package;
|
|
#endif
|
|
|
|
/* SANS-BOLD */
|
|
|
|
#ifdef CONFIG_NXFONT_SANS22X29B
|
|
extern const struct nx_fontpackage_s g_sans22x29b_package;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SANS28X37B
|
|
extern const struct nx_fontpackage_s g_sans28x37b_package;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SANS40X49B
|
|
extern const struct nx_fontpackage_s g_sans40x49b_package;
|
|
#endif
|
|
|
|
/* SERIF */
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF22X29
|
|
extern const struct nx_fontpackage_s g_serif22x29_package;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF29X37
|
|
extern const struct nx_fontpackage_s g_serif29x37_package;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF38X48
|
|
extern const struct nx_fontpackage_s g_serif38x48_package;
|
|
#endif
|
|
|
|
/* SERIF-BOLD */
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF22X28B
|
|
extern const struct nx_fontpackage_s g_serif22x28b_package;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF27X38B
|
|
extern const struct nx_fontpackage_s g_serif27x38b_package;
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF38X49
|
|
extern const struct nx_fontpackage_s g_serif38x49b_package;
|
|
#endif
|
|
|
|
static FAR const struct nx_fontpackage_s *g_fontpackages[] =
|
|
{
|
|
|
|
/* SANS */
|
|
|
|
#ifdef CONFIG_NXFONT_SANS22X29
|
|
&g_sans22x29_package,
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SANS23X27
|
|
&g_sans23x27_package,
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SANS28X37
|
|
&g_sans28x37_package,
|
|
#endif
|
|
|
|
/* SANS-BOLD */
|
|
|
|
#ifdef CONFIG_NXFONT_SANS22X29B
|
|
&g_sans22x29b_package,
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SANS28X37B
|
|
&g_sans28x37b_package,
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SANS40X49B
|
|
&g_sans40x49b_package,
|
|
#endif
|
|
|
|
/* SERIF */
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF22X29
|
|
&g_serif22x29_package,
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF29X37
|
|
&g_serif29x37_package,
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF38X48
|
|
&g_serif38x48_package,
|
|
#endif
|
|
|
|
/* SERIF-BOLD */
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF22X28B
|
|
&g_serif22x28b_package,
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF27X38B
|
|
&g_serif27x38b_package,
|
|
#endif
|
|
|
|
#ifdef CONFIG_NXFONT_SERIF38X49B
|
|
&g_serif38x49b_package,
|
|
#endif
|
|
|
|
NULL
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Private Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxf_getglyphset
|
|
*
|
|
* Description:
|
|
* Return information about the font set containtined he selected
|
|
* character encoding.
|
|
*
|
|
* Input Parameters:
|
|
* ch: character code
|
|
* package: The selected font package
|
|
*
|
|
****************************************************************************/
|
|
|
|
static inline FAR const struct nx_fontset_s *
|
|
nxf_getglyphset(uint16_t ch, FAR const struct nx_fontpackage_s *package)
|
|
{
|
|
FAR const struct nx_fontset_s *fontset;
|
|
|
|
/* Select the 7- or 8-bit font set */
|
|
|
|
if (ch < 128)
|
|
{
|
|
/* Select the 7-bit font set */
|
|
|
|
fontset = &package->font7;
|
|
}
|
|
else if (ch < 256)
|
|
{
|
|
#if CONFIG_NXFONTS_CHARBITS >= 8
|
|
/* Select the 8-bit font set */
|
|
|
|
fontset = &package->font8;
|
|
#else
|
|
gdbg("8-bit font support disabled: %d\n", ch);
|
|
return NULL;
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
/* Someday, perhaps 16-bit fonts will go here */
|
|
|
|
gdbg("16-bit font not currently supported\n");
|
|
return NULL;
|
|
}
|
|
|
|
/* Then verify that the character actually resides in the font */
|
|
|
|
if (ch >= fontset->first && ch < fontset->first +fontset->nchars)
|
|
{
|
|
return fontset;
|
|
}
|
|
|
|
gdbg("No bitmap for code %02x\n", ch);
|
|
return NULL;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: nxf_getfonthandle
|
|
*
|
|
* Description:
|
|
* Given a numeric font ID, return a handle that may be subsequently be
|
|
* used to access the font data sets.
|
|
*
|
|
* Input Parameters:
|
|
* fontid: Identifies the font set to get
|
|
*
|
|
****************************************************************************/
|
|
|
|
NXHANDLE nxf_getfonthandle(enum nx_fontid_e fontid)
|
|
{
|
|
FAR const struct nx_fontpackage_s **pkglist;
|
|
FAR const struct nx_fontpackage_s *package;
|
|
FAR const struct nx_fontpackage_s *defpkg = NULL;
|
|
|
|
/* Handle the default font package */
|
|
|
|
if (fontid == FONTID_DEFAULT)
|
|
{
|
|
fontid = NXFONT_DEFAULT;
|
|
}
|
|
|
|
/* Then search for the font package with this ID */
|
|
|
|
for (pkglist = g_fontpackages; *pkglist; pkglist++)
|
|
{
|
|
/* Is this the package with the matching font ID? */
|
|
|
|
package = *pkglist;
|
|
if (package->id == fontid)
|
|
{
|
|
/* Yes.. return a pointer to the package as the handle */
|
|
|
|
return (NXHANDLE)package;
|
|
}
|
|
|
|
/* No.. is it the default font? */
|
|
|
|
else if (package->id == NXFONT_DEFAULT)
|
|
{
|
|
/* Yes.. save the pointer to the default font. We will return the
|
|
* default font if the requested font cannot be found.
|
|
*/
|
|
|
|
defpkg = package;
|
|
}
|
|
}
|
|
|
|
/* Return a pointer to the default font as the handle. */
|
|
|
|
return (NXHANDLE)defpkg;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: nxf_getfontset
|
|
*
|
|
* Description:
|
|
* Return information about the current font set
|
|
*
|
|
* Input Parameters:
|
|
* handle: A font handle previously returned by nxf_getfonthandle
|
|
*
|
|
****************************************************************************/
|
|
|
|
FAR const struct nx_font_s *nxf_getfontset(NXHANDLE handle)
|
|
{
|
|
FAR const struct nx_fontpackage_s *package =
|
|
(FAR const struct nx_fontpackage_s *)handle;
|
|
|
|
/* Find the font package associated with this font ID */
|
|
|
|
if (package)
|
|
{
|
|
/* Found... return the font set metrics for this font package */
|
|
|
|
return &package->metrics;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/****************************************************************************
|
|
* Name: nxf_getbitmap
|
|
*
|
|
* Description:
|
|
* Return font bitmap information for the selected character encoding.
|
|
*
|
|
* Input Parameters:
|
|
* handle: A font handle previously returned by nxf_getfonthandle
|
|
* ch: Character code whose bitmap is requested
|
|
*
|
|
* Returned Value:
|
|
* An instance of struct nx_fontbitmap_s describing the glyph.
|
|
*
|
|
****************************************************************************/
|
|
|
|
FAR const struct nx_fontbitmap_s *nxf_getbitmap(NXHANDLE handle, uint16_t ch)
|
|
{
|
|
FAR const struct nx_fontpackage_s *package =
|
|
(FAR const struct nx_fontpackage_s *)handle;
|
|
FAR const struct nx_fontset_s *fontset;
|
|
FAR const struct nx_fontbitmap_s *bm = NULL;
|
|
|
|
/* Verify that the handle is a font package */
|
|
|
|
if (package)
|
|
{
|
|
/* Now get the fontset from the package */
|
|
|
|
fontset = nxf_getglyphset(ch, package);
|
|
if (fontset)
|
|
{
|
|
/* Then get the bitmap from the font set */
|
|
|
|
bm = &fontset->bitmap[ch - fontset->first];
|
|
}
|
|
}
|
|
|
|
return bm;
|
|
}
|