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/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);
}

void
wait_events (SV *rfd_, SV *wfd_)
        PPCODE:
{
}

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:	1.21
Committed:	Wed Apr 12 18:09:21 2006 UTC (18 years, 1 month ago) by root
Branch:	MAIN
Changes since 1.20:	+6 -0 lines
Log Message:	less SDL more SDL
#	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	1.19	substitute_func (FcPattern *pattern, gpointer data)
29			{
30	root	1.20	FcPatternAddBool (pattern, FC_HINTING , 1);
31			FcPatternAddBool (pattern, FC_AUTOHINT, 1);
32	root	1.19	}
33
34			static void
35	root	1.17	layout_update (CFClient__Layout self)
36			{
37	root	1.19	/* use a random scale factor to account for unknown descenders, 0.8 works
38			* reasonably well with bitstream vera
39			*/
40	root	1.17	PangoFontDescription *font = pango_context_get_font_description (context);
41	root	1.19	pango_font_description_set_absolute_size (font, self->base_height * (PANGO_SCALE * 8 / 10));
42	root	1.17	}
43
44			static void
45	root	1.15	layout_get_pixel_size (CFClient__Layout self, int w, int h)
46	root	1.14	{
47	root	1.19	layout_update (self);
48	root	1.16
49	root	1.14	pango_layout_get_pixel_size (self->pl, w, h);
50
51			w = (w + 3) & ~3;
52			if (!w) w = 1;
53			if (!h) h = 1;
54			}
55
56	root	1.15	MODULE = CFClient PACKAGE = CFClient
57	root	1.1
58	root	1.11	PROTOTYPES: ENABLE
59
60	root	1.5	BOOT:
61			{
62			fontmap = pango_ft2_font_map_new ();
63	root	1.19	pango_ft2_font_map_set_default_substitute ((PangoFT2FontMap *)fontmap, substitute_func, 0, 0);
64	root	1.8	context = pango_ft2_font_map_create_context ((PangoFT2FontMap *)fontmap);
65	root	1.5	}
66
67	root	1.10	void
68			lowdelay (int fd, int val = 1)
69			CODE:
70			setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val));
71
72	root	1.3	char *
73	root	1.4	gl_version ()
74			CODE:
75	root	1.5	RETVAL = (char *)glGetString (GL_VERSION);
76	root	1.4	OUTPUT:
77			RETVAL
78
79			char *
80	root	1.3	gl_extensions ()
81			CODE:
82	root	1.5	RETVAL = (char *)glGetString (GL_EXTENSIONS);
83	root	1.3	OUTPUT:
84			RETVAL
85
86	root	1.5	void
87	root	1.13	add_font (char *file)
88			CODE:
89			FcConfigAppFontAddFile (0, (const FcChar8 )file); / no idea wether this is required */
90
91			void
92	root	1.9	set_font (char *file)
93	root	1.8	CODE:
94			{
95	root	1.9	int count;
96			FcPattern pattern = FcFreeTypeQuery ((const FcChar8 )file, 0, 0, &count);
97	root	1.10	PangoFontDescription *font = pango_fc_font_description_from_pattern (pattern, 0);
98	root	1.9	FcPatternDestroy (pattern);
99	root	1.8	pango_context_set_font_description (context, font);
100			}
101
102	root	1.21	void
103			wait_events (SV rfd_, SV wfd_)
104			PPCODE:
105			{
106			}
107
108	root	1.15	MODULE = CFClient PACKAGE = CFClient::Layout
109	root	1.14
110	root	1.15	CFClient::Layout
111	root	1.14	new (SV *class, int base_height = 10)
112			CODE:
113			New (0, RETVAL, 1, struct cf_layout);
114			RETVAL->base_height = base_height;
115			RETVAL->pl = pango_layout_new (context);
116			pango_layout_set_wrap (RETVAL->pl, PANGO_WRAP_WORD_CHAR);
117			OUTPUT:
118			RETVAL
119
120			void
121	root	1.15	DESTROY (CFClient::Layout self)
122	root	1.14	CODE:
123			g_object_unref (self->pl);
124			Safefree (self);
125	root	1.13
126	root	1.8	void
127	root	1.15	set_markup (CFClient::Layout self, SV *text_)
128	root	1.14	CODE:
129	root	1.5	{
130			STRLEN textlen;
131			char *text = SvPVutf8 (text_, textlen);
132	root	1.14
133			pango_layout_set_markup (self->pl, text, textlen);
134			}
135
136			void
137	root	1.16	set_height (CFClient::Layout self, int base_height)
138			CODE:
139			self->base_height = base_height;
140
141			void
142	root	1.15	set_width (CFClient::Layout self, int max_width = -1)
143	root	1.14	CODE:
144			pango_layout_set_width (self->pl, max_width < 0 ? max_width : max_width * PANGO_SCALE);
145
146			void
147	root	1.15	size (CFClient::Layout self)
148	root	1.14	PPCODE:
149			{
150			int w, h;
151
152	root	1.17	layout_update (self);
153	root	1.14	layout_get_pixel_size (self, &w, &h);
154
155			EXTEND (SP, 2);
156			PUSHs (sv_2mortal (newSViv (w)));
157			PUSHs (sv_2mortal (newSViv (h)));
158			}
159
160	root	1.17	int
161			xy_to_index (CFClient::Layout self, int x, int y)
162			CODE:
163			{
164			int index, trailing;
165
166			layout_update (self);
167			pango_layout_xy_to_index (self->pl, x * PANGO_SCALE, y * PANGO_SCALE, &index, &trailing);
168
169			RETVAL = index;
170			}
171			OUTPUT:
172			RETVAL
173
174			void
175			cursor_pos (CFClient::Layout self, int index)
176			PPCODE:
177			{
178			PangoRectangle strong_pos;
179			layout_update (self);
180			pango_layout_get_cursor_pos (self->pl, index, &strong_pos, 0);
181			EXTEND (SP, 3);
182			PUSHs (sv_2mortal (newSViv (strong_pos.x / PANGO_SCALE)));
183			PUSHs (sv_2mortal (newSViv (strong_pos.y / PANGO_SCALE)));
184			PUSHs (sv_2mortal (newSViv (strong_pos.height / PANGO_SCALE)));
185			}
186
187	root	1.14	void
188	root	1.15	render (CFClient::Layout self)
189	root	1.14	PPCODE:
190			{
191	root	1.5	SV *retval;
192			int w, h;
193			FT_Bitmap bitmap;
194
195	root	1.17	layout_update (self);
196	root	1.14	layout_get_pixel_size (self, &w, &h);
197	root	1.5
198			retval = newSV (w * h);
199			SvPOK_only (retval);
200			SvCUR_set (retval, w * h);
201
202			bitmap.rows = h;
203			bitmap.width = w;
204			bitmap.pitch = w;
205			bitmap.buffer = (unsigned char*)SvPVX (retval);
206			bitmap.num_grays = 256;
207			bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
208
209			memset (bitmap.buffer, 0, w * h);
210
211	root	1.14	pango_ft2_render_layout (&bitmap, self->pl, 0 * PANGO_SCALE, 0 * PANGO_SCALE);
212	root	1.1
213	root	1.5	EXTEND (SP, 3);
214			PUSHs (sv_2mortal (newSViv (w)));
215			PUSHs (sv_2mortal (newSViv (h)));
216			PUSHs (sv_2mortal (retval));
217			}
218	root	1.11
219	root	1.15	MODULE = CFClient PACKAGE = CFClient::Texture
220	root	1.11
221			void
222	root	1.12	draw_quad (SV *self, double x, double y, double w = 0, double h = 0)
223			PROTOTYPE: $$$;$$
224	root	1.11	CODE:
225			{
226	root	1.12	HV hv = (HV )SvRV (self);
227			double s = SvNV (*hv_fetch (hv, "s", 1, 1));
228			double t = SvNV (*hv_fetch (hv, "t", 1, 1));
229			int name = SvIV (*hv_fetch (hv, "name", 4, 1));
230
231			if (items < 5)
232			{
233	root	1.18	w = SvNV (*hv_fetch (hv, "w", 1, 1));
234			h = SvNV (*hv_fetch (hv, "h", 1, 1));
235	root	1.12	}
236
237			glBindTexture (GL_TEXTURE_2D, name);
238			glBegin (GL_QUADS);
239			glTexCoord2d (0, 0); glVertex2d (x , y );
240			glTexCoord2d (0, t); glVertex2d (x , y + h);
241			glTexCoord2d (s, t); glVertex2d (x + w, y + h);
242			glTexCoord2d (s, 0); glVertex2d (x + w, y );
243			glEnd ();
244	root	1.11	}