cf.schmorp.de/Deliantra-Client/Client.xs

#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include <string.h>

#include <SDL.h>
#include <SDL_opengl.h>

#include <pango/pango.h>
#include <pango/pangofc-fontmap.h>
#include <pango/pangoft2.h>

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netinet/tcp.h>

static PangoContext *context;
static PangoFontMap *fontmap;

typedef struct cf_layout {
  PangoLayout *pl;
  int base_height;
} *CFClient__Layout;

static void
layout_get_pixel_size (CFClient__Layout self, int *w, int *h)
{
  PangoFontDescription *font = pango_context_get_font_description (context);
  pango_font_description_set_absolute_size (font, self->base_height * PANGO_SCALE);

  pango_layout_get_pixel_size (self->pl, w, h);

  *w = (*w + 3) & ~3;
  if (!*w) *w = 1;
  if (!*h) *h = 1;
}

MODULE = CFClient       PACKAGE = CFClient

PROTOTYPES: ENABLE

BOOT:
{
        fontmap = pango_ft2_font_map_new ();
        context = pango_ft2_font_map_create_context ((PangoFT2FontMap *)fontmap);
}

void
lowdelay (int fd, int val = 1)
        CODE:
        setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val));

char *
gl_version ()
        CODE:
        RETVAL = (char *)glGetString (GL_VERSION);
        OUTPUT:
        RETVAL

char *
gl_extensions ()
        CODE:
        RETVAL = (char *)glGetString (GL_EXTENSIONS);
        OUTPUT:
        RETVAL

void
add_font (char *file)
        CODE:
        FcConfigAppFontAddFile (0, (const FcChar8 *)file); /* no idea wether this is required */

void
set_font (char *file)
        CODE:
{
        int count;
        FcPattern *pattern = FcFreeTypeQuery ((const FcChar8 *)file, 0, 0, &count);
        PangoFontDescription *font = pango_fc_font_description_from_pattern (pattern, 0);
        FcPatternDestroy (pattern);
        pango_context_set_font_description (context, font);
}

MODULE = CFClient       PACKAGE = CFClient::Layout

CFClient::Layout
new (SV *class, int base_height = 10)
        CODE:
        New (0, RETVAL, 1, struct cf_layout);
        RETVAL->base_height = base_height;
        RETVAL->pl = pango_layout_new (context);
        pango_layout_set_wrap (RETVAL->pl, PANGO_WRAP_WORD_CHAR);
        OUTPUT:
        RETVAL

void
DESTROY (CFClient::Layout self)
        CODE:
        g_object_unref (self->pl);
        Safefree (self);

void
set_markup (CFClient::Layout self, SV *text_)
        CODE:
{
        STRLEN textlen;
        char *text = SvPVutf8 (text_, textlen);

        pango_layout_set_markup (self->pl, text, textlen);
}

void
set_height (CFClient::Layout self, int base_height)
        CODE:
        self->base_height = base_height;

void
set_width (CFClient::Layout self, int max_width = -1)
        CODE:
        pango_layout_set_width (self->pl, max_width < 0 ? max_width : max_width * PANGO_SCALE);

void
size (CFClient::Layout self)
        PPCODE:
{
        int w, h;

        layout_get_pixel_size (self, &w, &h);

        EXTEND (SP, 2);
        PUSHs (sv_2mortal (newSViv (w)));
        PUSHs (sv_2mortal (newSViv (h)));
}

void
render (CFClient::Layout self)
        PPCODE:
{
        SV *retval;
        int w, h;
        FT_Bitmap bitmap;

        layout_get_pixel_size (self, &w, &h);

        retval = newSV (w * h);
        SvPOK_only (retval);
        SvCUR_set (retval, w * h);

        bitmap.rows       = h;
        bitmap.width      = w;
        bitmap.pitch      = w;
        bitmap.buffer     = (unsigned char*)SvPVX (retval);
        bitmap.num_grays  = 256;
        bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;

        memset (bitmap.buffer, 0, w * h);
            
        pango_ft2_render_layout (&bitmap, self->pl, 0 * PANGO_SCALE, 0 * PANGO_SCALE);

        EXTEND (SP, 3);
        PUSHs (sv_2mortal (newSViv (w)));
        PUSHs (sv_2mortal (newSViv (h)));
        PUSHs (sv_2mortal (retval));
}

MODULE = CFClient       PACKAGE = CFClient::Texture

void
draw_quad (SV *self, double x, double y, double w = 0, double h = 0)
        PROTOTYPE: $$$;$$
        CODE:
{
        HV *hv = (HV *)SvRV (self);
        double s = SvNV (*hv_fetch (hv, "s", 1, 1));
        double t = SvNV (*hv_fetch (hv, "t", 1, 1));
        int name = SvIV (*hv_fetch (hv, "name", 4, 1));

        if (items < 5)
          {
            w = SvNV (*hv_fetch (hv, "width",  5, 1));
            h = SvNV (*hv_fetch (hv, "height", 6, 1));
          }

        glBindTexture (GL_TEXTURE_2D, name);
        glBegin (GL_QUADS);
        glTexCoord2d (0, 0); glVertex2d (x    , y    );
        glTexCoord2d (0, t); glVertex2d (x    , y + h);
        glTexCoord2d (s, t); glVertex2d (x + w, y + h);
        glTexCoord2d (s, 0); glVertex2d (x + w, y    );
        glEnd ();
}
Revision:	1.16
Committed:	Tue Apr 11 13:27:48 2006 UTC (20 years, 6 months ago) by root
Branch:	MAIN
Changes since 1.15:	+8 -3 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	root	1.1	#include "EXTERN.h"
2			#include "perl.h"
3			#include "XSUB.h"
4
5	root	1.5	#include <string.h>
6
7	root	1.2	#include <SDL.h>
8	root	1.3	#include <SDL_opengl.h>
9	root	1.5
10			#include <pango/pango.h>
11	root	1.10	#include <pango/pangofc-fontmap.h>
12	root	1.5	#include <pango/pangoft2.h>
13
14	root	1.10	#include <sys/types.h>
15			#include <sys/socket.h>
16			#include <netinet/in.h>
17			#include <netinet/tcp.h>
18
19	root	1.5	static PangoContext *context;
20			static PangoFontMap *fontmap;
21	root	1.2
22	root	1.14	typedef struct cf_layout {
23			PangoLayout *pl;
24			int base_height;
25	root	1.15	} *CFClient__Layout;
26	root	1.14
27			static void
28	root	1.15	layout_get_pixel_size (CFClient__Layout self, int w, int h)
29	root	1.14	{
30	root	1.16	PangoFontDescription *font = pango_context_get_font_description (context);
31			pango_font_description_set_absolute_size (font, self->base_height * PANGO_SCALE);
32
33	root	1.14	pango_layout_get_pixel_size (self->pl, w, h);
34
35			w = (w + 3) & ~3;
36			if (!w) w = 1;
37			if (!h) h = 1;
38			}
39
40	root	1.15	MODULE = CFClient PACKAGE = CFClient
41	root	1.1
42	root	1.11	PROTOTYPES: ENABLE
43
44	root	1.5	BOOT:
45			{
46			fontmap = pango_ft2_font_map_new ();
47	root	1.8	context = pango_ft2_font_map_create_context ((PangoFT2FontMap *)fontmap);
48	root	1.5	}
49
50	root	1.10	void
51			lowdelay (int fd, int val = 1)
52			CODE:
53			setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val));
54
55	root	1.3	char *
56	root	1.4	gl_version ()
57			CODE:
58	root	1.5	RETVAL = (char *)glGetString (GL_VERSION);
59	root	1.4	OUTPUT:
60			RETVAL
61
62			char *
63	root	1.3	gl_extensions ()
64			CODE:
65	root	1.5	RETVAL = (char *)glGetString (GL_EXTENSIONS);
66	root	1.3	OUTPUT:
67			RETVAL
68
69	root	1.5	void
70	root	1.13	add_font (char *file)
71			CODE:
72			FcConfigAppFontAddFile (0, (const FcChar8 )file); / no idea wether this is required */
73
74			void
75	root	1.9	set_font (char *file)
76	root	1.8	CODE:
77			{
78	root	1.9	int count;
79			FcPattern pattern = FcFreeTypeQuery ((const FcChar8 )file, 0, 0, &count);
80	root	1.10	PangoFontDescription *font = pango_fc_font_description_from_pattern (pattern, 0);
81	root	1.9	FcPatternDestroy (pattern);
82	root	1.8	pango_context_set_font_description (context, font);
83			}
84
85	root	1.15	MODULE = CFClient PACKAGE = CFClient::Layout
86	root	1.14
87	root	1.15	CFClient::Layout
88	root	1.14	new (SV *class, int base_height = 10)
89			CODE:
90			New (0, RETVAL, 1, struct cf_layout);
91			RETVAL->base_height = base_height;
92			RETVAL->pl = pango_layout_new (context);
93			pango_layout_set_wrap (RETVAL->pl, PANGO_WRAP_WORD_CHAR);
94			OUTPUT:
95			RETVAL
96
97			void
98	root	1.15	DESTROY (CFClient::Layout self)
99	root	1.14	CODE:
100			g_object_unref (self->pl);
101			Safefree (self);
102	root	1.13
103	root	1.8	void
104	root	1.15	set_markup (CFClient::Layout self, SV *text_)
105	root	1.14	CODE:
106	root	1.5	{
107			STRLEN textlen;
108			char *text = SvPVutf8 (text_, textlen);
109	root	1.14
110			pango_layout_set_markup (self->pl, text, textlen);
111			}
112
113			void
114	root	1.16	set_height (CFClient::Layout self, int base_height)
115			CODE:
116			self->base_height = base_height;
117
118			void
119	root	1.15	set_width (CFClient::Layout self, int max_width = -1)
120	root	1.14	CODE:
121			pango_layout_set_width (self->pl, max_width < 0 ? max_width : max_width * PANGO_SCALE);
122
123			void
124	root	1.15	size (CFClient::Layout self)
125	root	1.14	PPCODE:
126			{
127			int w, h;
128
129			layout_get_pixel_size (self, &w, &h);
130
131			EXTEND (SP, 2);
132			PUSHs (sv_2mortal (newSViv (w)));
133			PUSHs (sv_2mortal (newSViv (h)));
134			}
135
136			void
137	root	1.15	render (CFClient::Layout self)
138	root	1.14	PPCODE:
139			{
140	root	1.5	SV *retval;
141			int w, h;
142			FT_Bitmap bitmap;
143
144	root	1.14	layout_get_pixel_size (self, &w, &h);
145	root	1.5
146			retval = newSV (w * h);
147			SvPOK_only (retval);
148			SvCUR_set (retval, w * h);
149
150			bitmap.rows = h;
151			bitmap.width = w;
152			bitmap.pitch = w;
153			bitmap.buffer = (unsigned char*)SvPVX (retval);
154			bitmap.num_grays = 256;
155			bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
156
157			memset (bitmap.buffer, 0, w * h);
158
159	root	1.14	pango_ft2_render_layout (&bitmap, self->pl, 0 * PANGO_SCALE, 0 * PANGO_SCALE);
160	root	1.1
161	root	1.5	EXTEND (SP, 3);
162			PUSHs (sv_2mortal (newSViv (w)));
163			PUSHs (sv_2mortal (newSViv (h)));
164			PUSHs (sv_2mortal (retval));
165			}
166	root	1.11
167	root	1.15	MODULE = CFClient PACKAGE = CFClient::Texture
168	root	1.11
169			void
170	root	1.12	draw_quad (SV *self, double x, double y, double w = 0, double h = 0)
171			PROTOTYPE: $$$;$$
172	root	1.11	CODE:
173			{
174	root	1.12	HV hv = (HV )SvRV (self);
175			double s = SvNV (*hv_fetch (hv, "s", 1, 1));
176			double t = SvNV (*hv_fetch (hv, "t", 1, 1));
177			int name = SvIV (*hv_fetch (hv, "name", 4, 1));
178
179			if (items < 5)
180			{
181			w = SvNV (*hv_fetch (hv, "width", 5, 1));
182			h = SvNV (*hv_fetch (hv, "height", 6, 1));
183			}
184
185			glBindTexture (GL_TEXTURE_2D, name);
186			glBegin (GL_QUADS);
187			glTexCoord2d (0, 0); glVertex2d (x , y );
188			glTexCoord2d (0, t); glVertex2d (x , y + h);
189			glTexCoord2d (s, t); glVertex2d (x + w, y + h);
190			glTexCoord2d (s, 0); glVertex2d (x + w, y );
191			glEnd ();
192	root	1.11	}