deliantra/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/time.h>
#include <sys/types.h>
#include <unistd.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
substitute_func (FcPattern *pattern, gpointer data)
{
  FcPatternAddBool (pattern, FC_HINTING , 1);
  FcPatternAddBool (pattern, FC_AUTOHINT, 1);
}

static void
layout_update (CFClient__Layout self)
{
  /* use a random scale factor to account for unknown descenders, 0.8 works
   * reasonably well with bitstream vera
   */
  PangoFontDescription *font = pango_context_get_font_description (context);
  pango_font_description_set_absolute_size (font, self->base_height * (PANGO_SCALE * 8 / 10));
}

static void
layout_get_pixel_size (CFClient__Layout self, int *w, int *h)
{
  layout_update (self);

  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 ();
        pango_ft2_font_map_set_default_substitute ((PangoFT2FontMap *)fontmap, substitute_func, 0, 0);
        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_update (self);
        layout_get_pixel_size (self, &w, &h);

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

int
xy_to_index (CFClient::Layout self, int x, int y)
        CODE:
{
        int index, trailing;

        layout_update (self);
        pango_layout_xy_to_index (self->pl, x * PANGO_SCALE, y * PANGO_SCALE, &index, &trailing);

        RETVAL = index;
}
        OUTPUT:
        RETVAL

void
cursor_pos (CFClient::Layout self, int index)
        PPCODE:
{
        PangoRectangle strong_pos;
        layout_update (self);
        pango_layout_get_cursor_pos (self->pl, index, &strong_pos, 0);
        EXTEND (SP, 3);
        PUSHs (sv_2mortal (newSViv (strong_pos.x      / PANGO_SCALE)));
        PUSHs (sv_2mortal (newSViv (strong_pos.y      / PANGO_SCALE)));
        PUSHs (sv_2mortal (newSViv (strong_pos.height / PANGO_SCALE)));
}

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

        layout_update (self);
        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, "w", 1, 1));
            h = SvNV (*hv_fetch (hv, "h", 1, 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:	1.22
Committed:	Wed Apr 12 20:06:36 2006 UTC (18 years, 1 month ago) by root
Branch:	MAIN
Changes since 1.21:	+4 -6 lines
Log Message:	even less gtk
#	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	1.22	#include <sys/time.h>
15			#include <sys/types.h>
16			#include <unistd.h>
17
18	root	1.10	#include <sys/types.h>
19			#include <sys/socket.h>
20			#include <netinet/in.h>
21			#include <netinet/tcp.h>
22
23	root	1.5	static PangoContext *context;
24			static PangoFontMap *fontmap;
25	root	1.2
26	root	1.14	typedef struct cf_layout {
27			PangoLayout *pl;
28			int base_height;
29	root	1.15	} *CFClient__Layout;
30	root	1.14
31			static void
32	root	1.19	substitute_func (FcPattern *pattern, gpointer data)
33			{
34	root	1.20	FcPatternAddBool (pattern, FC_HINTING , 1);
35			FcPatternAddBool (pattern, FC_AUTOHINT, 1);
36	root	1.19	}
37
38			static void
39	root	1.17	layout_update (CFClient__Layout self)
40			{
41	root	1.19	/* use a random scale factor to account for unknown descenders, 0.8 works
42			* reasonably well with bitstream vera
43			*/
44	root	1.17	PangoFontDescription *font = pango_context_get_font_description (context);
45	root	1.19	pango_font_description_set_absolute_size (font, self->base_height * (PANGO_SCALE * 8 / 10));
46	root	1.17	}
47
48			static void
49	root	1.15	layout_get_pixel_size (CFClient__Layout self, int w, int h)
50	root	1.14	{
51	root	1.19	layout_update (self);
52	root	1.16
53	root	1.14	pango_layout_get_pixel_size (self->pl, w, h);
54
55			w = (w + 3) & ~3;
56			if (!w) w = 1;
57			if (!h) h = 1;
58			}
59
60	root	1.15	MODULE = CFClient PACKAGE = CFClient
61	root	1.1
62	root	1.11	PROTOTYPES: ENABLE
63
64	root	1.5	BOOT:
65			{
66			fontmap = pango_ft2_font_map_new ();
67	root	1.19	pango_ft2_font_map_set_default_substitute ((PangoFT2FontMap *)fontmap, substitute_func, 0, 0);
68	root	1.8	context = pango_ft2_font_map_create_context ((PangoFT2FontMap *)fontmap);
69	root	1.5	}
70
71	root	1.10	void
72			lowdelay (int fd, int val = 1)
73			CODE:
74			setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val));
75
76	root	1.3	char *
77	root	1.4	gl_version ()
78			CODE:
79	root	1.5	RETVAL = (char *)glGetString (GL_VERSION);
80	root	1.4	OUTPUT:
81			RETVAL
82
83			char *
84	root	1.3	gl_extensions ()
85			CODE:
86	root	1.5	RETVAL = (char *)glGetString (GL_EXTENSIONS);
87	root	1.3	OUTPUT:
88			RETVAL
89
90	root	1.5	void
91	root	1.13	add_font (char *file)
92			CODE:
93			FcConfigAppFontAddFile (0, (const FcChar8 )file); / no idea wether this is required */
94
95			void
96	root	1.9	set_font (char *file)
97	root	1.8	CODE:
98			{
99	root	1.9	int count;
100			FcPattern pattern = FcFreeTypeQuery ((const FcChar8 )file, 0, 0, &count);
101	root	1.10	PangoFontDescription *font = pango_fc_font_description_from_pattern (pattern, 0);
102	root	1.9	FcPatternDestroy (pattern);
103	root	1.8	pango_context_set_font_description (context, font);
104			}
105
106	root	1.15	MODULE = CFClient PACKAGE = CFClient::Layout
107	root	1.14
108	root	1.15	CFClient::Layout
109	root	1.14	new (SV *class, int base_height = 10)
110			CODE:
111			New (0, RETVAL, 1, struct cf_layout);
112			RETVAL->base_height = base_height;
113			RETVAL->pl = pango_layout_new (context);
114			pango_layout_set_wrap (RETVAL->pl, PANGO_WRAP_WORD_CHAR);
115			OUTPUT:
116			RETVAL
117
118			void
119	root	1.15	DESTROY (CFClient::Layout self)
120	root	1.14	CODE:
121			g_object_unref (self->pl);
122			Safefree (self);
123	root	1.13
124	root	1.8	void
125	root	1.15	set_markup (CFClient::Layout self, SV *text_)
126	root	1.14	CODE:
127	root	1.5	{
128			STRLEN textlen;
129			char *text = SvPVutf8 (text_, textlen);
130	root	1.14
131			pango_layout_set_markup (self->pl, text, textlen);
132			}
133
134			void
135	root	1.16	set_height (CFClient::Layout self, int base_height)
136			CODE:
137			self->base_height = base_height;
138
139			void
140	root	1.15	set_width (CFClient::Layout self, int max_width = -1)
141	root	1.14	CODE:
142			pango_layout_set_width (self->pl, max_width < 0 ? max_width : max_width * PANGO_SCALE);
143
144			void
145	root	1.15	size (CFClient::Layout self)
146	root	1.14	PPCODE:
147			{
148			int w, h;
149
150	root	1.17	layout_update (self);
151	root	1.14	layout_get_pixel_size (self, &w, &h);
152
153			EXTEND (SP, 2);
154			PUSHs (sv_2mortal (newSViv (w)));
155			PUSHs (sv_2mortal (newSViv (h)));
156			}
157
158	root	1.17	int
159			xy_to_index (CFClient::Layout self, int x, int y)
160			CODE:
161			{
162			int index, trailing;
163
164			layout_update (self);
165			pango_layout_xy_to_index (self->pl, x * PANGO_SCALE, y * PANGO_SCALE, &index, &trailing);
166
167			RETVAL = index;
168			}
169			OUTPUT:
170			RETVAL
171
172			void
173			cursor_pos (CFClient::Layout self, int index)
174			PPCODE:
175			{
176			PangoRectangle strong_pos;
177			layout_update (self);
178			pango_layout_get_cursor_pos (self->pl, index, &strong_pos, 0);
179			EXTEND (SP, 3);
180			PUSHs (sv_2mortal (newSViv (strong_pos.x / PANGO_SCALE)));
181			PUSHs (sv_2mortal (newSViv (strong_pos.y / PANGO_SCALE)));
182			PUSHs (sv_2mortal (newSViv (strong_pos.height / PANGO_SCALE)));
183			}
184
185	root	1.14	void
186	root	1.15	render (CFClient::Layout self)
187	root	1.14	PPCODE:
188			{
189	root	1.5	SV *retval;
190			int w, h;
191			FT_Bitmap bitmap;
192
193	root	1.17	layout_update (self);
194	root	1.14	layout_get_pixel_size (self, &w, &h);
195	root	1.5
196			retval = newSV (w * h);
197			SvPOK_only (retval);
198			SvCUR_set (retval, w * h);
199
200			bitmap.rows = h;
201			bitmap.width = w;
202			bitmap.pitch = w;
203			bitmap.buffer = (unsigned char*)SvPVX (retval);
204			bitmap.num_grays = 256;
205			bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
206
207			memset (bitmap.buffer, 0, w * h);
208
209	root	1.14	pango_ft2_render_layout (&bitmap, self->pl, 0 * PANGO_SCALE, 0 * PANGO_SCALE);
210	root	1.1
211	root	1.5	EXTEND (SP, 3);
212			PUSHs (sv_2mortal (newSViv (w)));
213			PUSHs (sv_2mortal (newSViv (h)));
214			PUSHs (sv_2mortal (retval));
215			}
216	root	1.11
217	root	1.15	MODULE = CFClient PACKAGE = CFClient::Texture
218	root	1.11
219			void
220	root	1.12	draw_quad (SV *self, double x, double y, double w = 0, double h = 0)
221			PROTOTYPE: $$$;$$
222	root	1.11	CODE:
223			{
224	root	1.12	HV hv = (HV )SvRV (self);
225			double s = SvNV (*hv_fetch (hv, "s", 1, 1));
226			double t = SvNV (*hv_fetch (hv, "t", 1, 1));
227			int name = SvIV (*hv_fetch (hv, "name", 4, 1));
228
229			if (items < 5)
230			{
231	root	1.18	w = SvNV (*hv_fetch (hv, "w", 1, 1));
232			h = SvNV (*hv_fetch (hv, "h", 1, 1));
233	root	1.12	}
234
235			glBindTexture (GL_TEXTURE_2D, name);
236			glBegin (GL_QUADS);
237			glTexCoord2d (0, 0); glVertex2d (x , y );
238			glTexCoord2d (0, t); glVertex2d (x , y + h);
239			glTexCoord2d (s, t); glVertex2d (x + w, y + h);
240			glTexCoord2d (s, 0); glVertex2d (x + w, y );
241			glEnd ();
242	root	1.11	}