File: gdevmac.h

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/* Copyright (C) 2001-2012 Artifex Software, Inc.
   All Rights Reserved.

   This software is provided AS-IS with no warranty, either express or
   implied.

   This software is distributed under license and may not be copied,
   modified or distributed except as expressly authorized under the terms
   of the license contained in the file LICENSE in this distribution.

   Refer to licensing information at http://www.artifex.com or contact
   Artifex Software, Inc.,  7 Mt. Lassen Drive - Suite A-134, San Rafael,
   CA  94903, U.S.A., +1(415)492-9861, for further information.
*/


#ifndef gdevmac_INCLUDED
#  define gdevmac_INCLUDED

#include <stdlib.h>
#include "math_.h"
#include "string_.h"

#include "gdevmacpictop.h"

#include <Fonts.h>
#include <FixMath.h>
#include <Resources.h>

#include "gx.h"
#include "gxdevice.h"
#include "gp.h"
#include "gp_mac.h"
#include "gsdll.h"

#include "gsutil.h"
#include "gxxfont.h"
#include "gsstruct.h"
#include "gserrors.h"

/* Default device settings */

#define DEFAULT_PAGE_SIZE_H		8.5
#define DEFAULT_PAGE_SIZE_V		11.0
#define DEFAULT_DEV_DPI			72.0
#define DEFAULT_PAGE_DPI		72.0

#define DEFAULT_DEV_WIDTH  		(DEFAULT_PAGE_SIZE_H * DEFAULT_DEV_DPI)
#define DEFAULT_DEV_HEIGHT 		(DEFAULT_PAGE_SIZE_V * DEFAULT_DEV_DPI)
#define DEFAULT_PAGE_WIDTH  	(DEFAULT_PAGE_SIZE_H * DEFAULT_PAGE_DPI)
#define DEFAULT_PAGE_HEIGHT 	(DEFAULT_PAGE_SIZE_V * DEFAULT_PAGE_DPI)

/* Define the Macintosh device */

typedef struct gx_device_macos_s
{
        gx_device_common;
        char			outputFileName[gp_file_name_sizeof];
        FILE			*outputFile;
        PicHandle		pic;
        short			*currPicPos;
        bool			outputPage;
        FMFontStyle		lastFontFace;
        FMFontSize		lastFontSize;
        FMFontFamily	lastFontID;
        int				numUsedFonts;
        FMFontFamily	usedFontIDs[256];
} gx_device_macos;

#define DEV_MAC_NAME	"macos"

/* Device Procedures */

dev_proc_open_device(mac_open);
dev_proc_get_initial_matrix(mac_get_initial_matrix);
dev_proc_sync_output(mac_sync_output);
dev_proc_output_page(mac_output_page);
dev_proc_get_params(mac_get_params);
dev_proc_put_params(mac_put_params);
dev_proc_close_device(mac_close);
dev_proc_fill_rectangle(mac_fill_rectangle);
dev_proc_strip_tile_rectangle(mac_strip_tile_rectangle);
dev_proc_copy_mono(mac_copy_mono);
dev_proc_copy_color(mac_copy_color);
dev_proc_draw_line(mac_draw_line);
dev_proc_copy_alpha(mac_copy_alpha);

/* Define a MacOS xfont. */

typedef struct mac_xfont_s mac_xfont;
struct mac_xfont_s {
        gx_xfont_common	common;
        gx_device		*dev;
        Str255			fontName;
        FMFontFamily	fontID;
        FMFontStyle		fontFace;
        FMFontSize		fontSize;
        int				fontEncoding;
        FMetricRec		fontMetrics;
};

/* Memory handling macros */

#define	CheckMem(a,b)																\
                {																			\
                        long	offset = (long) mdev->currPicPos - (long) *mdev->pic;			\
                        long	len = GetHandleSize((Handle) mdev->pic);						\
                        if (len - offset < a) {													\
                                HUnlock((Handle) mdev->pic);										\
                                SetHandleSize((Handle) mdev->pic, len + b);							\
                                if (MemError() != noErr) return gs_error_VMerror;					\
                                HLockHi((Handle) mdev->pic);										\
                                mdev->currPicPos = (short*) ((long) *mdev->pic + offset);			\
                        }																		\
                }

#define ResetPage()																	\
                {																			\
                        if (mdev->outputPage) {													\
                                mdev->outputPage = false;											\
                                mdev->currPicPos = (short*) *mdev->pic;								\
                                mdev->currPicPos += 42; /* header len */							\
                                mdev->lastFontID = mdev->lastFontSize = mdev->lastFontFace = -1;	\
                                mdev->numUsedFonts = 0;												\
                        }																		\
                }

/* Other datatypes */

typedef struct {
        unsigned short red;
        unsigned short green;
        unsigned short blue;
} colorRGB;

typedef struct {
        float h;
        float s;
        float v;
} colorHSV;

/* Helper function definitions */

static int		mac_save_pict(gx_device * dev);
static void	mac_convert_rgb_hsv(colorRGB *inRGB, colorHSV *HSV);
static void	mac_convert_hsv_rgb(colorHSV *inHSV, colorRGB *RGB);

static void	mac_find_font_family(ConstStringPtr fname, int len,
                                                                         FMFontFamily *fontFamilyID, FMFontStyle *fontFace);
static int		mac_get_font_encoding(mac_xfont *macxf);
static void	mac_get_font_resource(mac_xfont *macxf, ResType *resType, short *resID);

static int     mac_set_colordepth(gx_device *dev, int depth);

/* additional DLL function definition */

#pragma export on

int GSDLLAPI gsdll_get_pict(unsigned char *, PicHandle *);
typedef int (GSDLLAPI * PFN_gsdll_get_pict) (unsigned char *, PicHandle *);

#pragma export off

#endif 				/* gdevmac_INCLUDED */