deliantra/Deliantra-Client/Client.xs

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

#include <string.h>
#include <stdio.h>

#include <SDL.h>
#include <SDL_image.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
load_image_inline (SV *image_)
        ALIAS:
        load_image_file = 1
        PPCODE:
{
        STRLEN image_len;
        char *image = (char *)SvPVbyte (image_, image_len);
        SDL_Surface *surface, *surface2;
        SDL_PixelFormat fmt;
        SDL_RWops *rw = ix
          ? SDL_RWFromFile (image, "r")
          : SDL_RWFromConstMem (image, image_len);

        if (!rw)
          croak ("load_image: unable to open file");

        surface = IMG_Load_RW (rw, 1);
        if (!surface)
          croak ("load_image: unable to read file");

        fmt.palette = NULL;
        fmt.BitsPerPixel = 32;
        fmt.BytesPerPixel = 4;
        fmt.Rmask = 0x000000ff;
        fmt.Gmask = 0x0000ff00;
        fmt.Bmask = 0x00ff0000;
        fmt.Amask = 0xff000000;
        fmt.Rloss = 0;
        fmt.Gloss = 0;
        fmt.Bloss = 0;
        fmt.Aloss = 0;
        fmt.Rshift = 0;
        fmt.Gshift = 8;
        fmt.Bshift = 16;
        fmt.Ashift = 24;
        fmt.colorkey = 0;
        fmt.alpha = 0;

        surface2 = SDL_ConvertSurface (surface, &fmt, SDL_SWSURFACE);

        EXTEND (SP, 5);
        PUSHs (sv_2mortal (newSViv (surface2->w)));
        PUSHs (sv_2mortal (newSViv (surface2->h)));
        SDL_LockSurface (surface2);
        PUSHs (sv_2mortal (newSVpvn (surface2->pixels, surface2->h * surface2->pitch)));
        SDL_UnlockSurface (surface2);
        PUSHs (sv_2mortal (newSViv (surface->flags & (SDL_SRCCOLORKEY | SDL_SRCALPHA) ? GL_RGBA : GL_RGB)));
        PUSHs (sv_2mortal (newSViv (GL_RGBA)));
        PUSHs (sv_2mortal (newSViv (GL_UNSIGNED_INT_8_8_8_8_REV)));

        SDL_FreeSurface (surface);
        SDL_FreeSurface (surface2);
}

void
fatal (char *message)
        CODE:
#ifdef WIN32
        MessageBox (0, message, "Crossfire+ Fatal Error", MB_OK | MB_ICONERROR | MB_SETFOREGROUND);
#else
        fprintf (stderr, "%s\n", message);
#endif
        exit (1);

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:	1.27
Committed:	Wed Apr 12 23:32:27 2006 UTC (18 years, 1 month ago) by root
Branch:	MAIN
Changes since 1.26:	+0 -6 lines
Log Message:	* empty log message *
#	Content
1	#include "EXTERN.h"
2	#include "perl.h"
3	#include "XSUB.h"
4
5	#include <string.h>
6	#include <stdio.h>
7
8	#include <SDL.h>
9	#include <SDL_image.h>
10	#include <SDL_opengl.h>
11
12	#include <pango/pango.h>
13	#include <pango/pangofc-fontmap.h>
14	#include <pango/pangoft2.h>
15
16	#include <sys/types.h>
17	#include <sys/socket.h>
18	#include <netinet/in.h>
19	#include <netinet/tcp.h>
20
21	static PangoContext *context;
22	static PangoFontMap *fontmap;
23
24	typedef struct cf_layout {
25	PangoLayout *pl;
26	int base_height;
27	} *CFClient__Layout;
28
29	static void
30	substitute_func (FcPattern *pattern, gpointer data)
31	{
32	FcPatternAddBool (pattern, FC_HINTING , 1);
33	FcPatternAddBool (pattern, FC_AUTOHINT, 1);
34	}
35
36	static void
37	layout_update (CFClient__Layout self)
38	{
39	/* use a random scale factor to account for unknown descenders, 0.8 works
40	* reasonably well with bitstream vera
41	*/
42	PangoFontDescription *font = pango_context_get_font_description (context);
43	pango_font_description_set_absolute_size (font, self->base_height * (PANGO_SCALE * 8 / 10));
44	}
45
46	static void
47	layout_get_pixel_size (CFClient__Layout self, int w, int h)
48	{
49	layout_update (self);
50
51	pango_layout_get_pixel_size (self->pl, w, h);
52
53	w = (w + 3) & ~3;
54	if (!w) w = 1;
55	if (!h) h = 1;
56	}
57
58	MODULE = CFClient PACKAGE = CFClient
59
60	PROTOTYPES: ENABLE
61
62	BOOT:
63	{
64	fontmap = pango_ft2_font_map_new ();
65	pango_ft2_font_map_set_default_substitute ((PangoFT2FontMap *)fontmap, substitute_func, 0, 0);
66	context = pango_ft2_font_map_create_context ((PangoFT2FontMap *)fontmap);
67	}
68
69	void
70	lowdelay (int fd, int val = 1)
71	CODE:
72	setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val));
73
74	char *
75	gl_version ()
76	CODE:
77	RETVAL = (char *)glGetString (GL_VERSION);
78	OUTPUT:
79	RETVAL
80
81	char *
82	gl_extensions ()
83	CODE:
84	RETVAL = (char *)glGetString (GL_EXTENSIONS);
85	OUTPUT:
86	RETVAL
87
88	void
89	add_font (char *file)
90	CODE:
91	FcConfigAppFontAddFile (0, (const FcChar8 )file); / no idea wether this is required */
92
93	void
94	set_font (char *file)
95	CODE:
96	{
97	int count;
98	FcPattern pattern = FcFreeTypeQuery ((const FcChar8 )file, 0, 0, &count);
99	PangoFontDescription *font = pango_fc_font_description_from_pattern (pattern, 0);
100	FcPatternDestroy (pattern);
101	pango_context_set_font_description (context, font);
102	}
103
104	void
105	load_image_inline (SV *image_)
106	ALIAS:
107	load_image_file = 1
108	PPCODE:
109	{
110	STRLEN image_len;
111	char image = (char )SvPVbyte (image_, image_len);
112	SDL_Surface surface, surface2;
113	SDL_PixelFormat fmt;
114	SDL_RWops *rw = ix
115	? SDL_RWFromFile (image, "r")
116	: SDL_RWFromConstMem (image, image_len);
117
118	if (!rw)
119	croak ("load_image: unable to open file");
120
121	surface = IMG_Load_RW (rw, 1);
122	if (!surface)
123	croak ("load_image: unable to read file");
124
125	fmt.palette = NULL;
126	fmt.BitsPerPixel = 32;
127	fmt.BytesPerPixel = 4;
128	fmt.Rmask = 0x000000ff;
129	fmt.Gmask = 0x0000ff00;
130	fmt.Bmask = 0x00ff0000;
131	fmt.Amask = 0xff000000;
132	fmt.Rloss = 0;
133	fmt.Gloss = 0;
134	fmt.Bloss = 0;
135	fmt.Aloss = 0;
136	fmt.Rshift = 0;
137	fmt.Gshift = 8;
138	fmt.Bshift = 16;
139	fmt.Ashift = 24;
140	fmt.colorkey = 0;
141	fmt.alpha = 0;
142
143	surface2 = SDL_ConvertSurface (surface, &fmt, SDL_SWSURFACE);
144
145	EXTEND (SP, 5);
146	PUSHs (sv_2mortal (newSViv (surface2->w)));
147	PUSHs (sv_2mortal (newSViv (surface2->h)));
148	SDL_LockSurface (surface2);
149	PUSHs (sv_2mortal (newSVpvn (surface2->pixels, surface2->h * surface2->pitch)));
150	SDL_UnlockSurface (surface2);
151	PUSHs (sv_2mortal (newSViv (surface->flags & (SDL_SRCCOLORKEY \| SDL_SRCALPHA) ? GL_RGBA : GL_RGB)));
152	PUSHs (sv_2mortal (newSViv (GL_RGBA)));
153	PUSHs (sv_2mortal (newSViv (GL_UNSIGNED_INT_8_8_8_8_REV)));
154
155	SDL_FreeSurface (surface);
156	SDL_FreeSurface (surface2);
157	}
158
159	void
160	fatal (char *message)
161	CODE:
162	#ifdef WIN32
163	MessageBox (0, message, "Crossfire+ Fatal Error", MB_OK \| MB_ICONERROR \| MB_SETFOREGROUND);
164	#else
165	fprintf (stderr, "%s\n", message);
166	#endif
167	exit (1);
168
169	MODULE = CFClient PACKAGE = CFClient::Layout
170
171	CFClient::Layout
172	new (SV *class, int base_height = 10)
173	CODE:
174	New (0, RETVAL, 1, struct cf_layout);
175	RETVAL->base_height = base_height;
176	RETVAL->pl = pango_layout_new (context);
177	pango_layout_set_wrap (RETVAL->pl, PANGO_WRAP_WORD_CHAR);
178	OUTPUT:
179	RETVAL
180
181	void
182	DESTROY (CFClient::Layout self)
183	CODE:
184	g_object_unref (self->pl);
185	Safefree (self);
186
187	void
188	set_markup (CFClient::Layout self, SV *text_)
189	CODE:
190	{
191	STRLEN textlen;
192	char *text = SvPVutf8 (text_, textlen);
193
194	pango_layout_set_markup (self->pl, text, textlen);
195	}
196
197	void
198	set_height (CFClient::Layout self, int base_height)
199	CODE:
200	self->base_height = base_height;
201
202	void
203	set_width (CFClient::Layout self, int max_width = -1)
204	CODE:
205	pango_layout_set_width (self->pl, max_width < 0 ? max_width : max_width * PANGO_SCALE);
206
207	void
208	size (CFClient::Layout self)
209	PPCODE:
210	{
211	int w, h;
212
213	layout_update (self);
214	layout_get_pixel_size (self, &w, &h);
215
216	EXTEND (SP, 2);
217	PUSHs (sv_2mortal (newSViv (w)));
218	PUSHs (sv_2mortal (newSViv (h)));
219	}
220
221	int
222	xy_to_index (CFClient::Layout self, int x, int y)
223	CODE:
224	{
225	int index, trailing;
226
227	layout_update (self);
228	pango_layout_xy_to_index (self->pl, x * PANGO_SCALE, y * PANGO_SCALE, &index, &trailing);
229
230	RETVAL = index;
231	}
232	OUTPUT:
233	RETVAL
234
235	void
236	cursor_pos (CFClient::Layout self, int index)
237	PPCODE:
238	{
239	PangoRectangle strong_pos;
240	layout_update (self);
241	pango_layout_get_cursor_pos (self->pl, index, &strong_pos, 0);
242	EXTEND (SP, 3);
243	PUSHs (sv_2mortal (newSViv (strong_pos.x / PANGO_SCALE)));
244	PUSHs (sv_2mortal (newSViv (strong_pos.y / PANGO_SCALE)));
245	PUSHs (sv_2mortal (newSViv (strong_pos.height / PANGO_SCALE)));
246	}
247
248	void
249	render (CFClient::Layout self)
250	PPCODE:
251	{
252	SV *retval;
253	int w, h;
254	FT_Bitmap bitmap;
255
256	layout_update (self);
257	layout_get_pixel_size (self, &w, &h);
258
259	retval = newSV (w * h);
260	SvPOK_only (retval);
261	SvCUR_set (retval, w * h);
262
263	bitmap.rows = h;
264	bitmap.width = w;
265	bitmap.pitch = w;
266	bitmap.buffer = (unsigned char*)SvPVX (retval);
267	bitmap.num_grays = 256;
268	bitmap.pixel_mode = FT_PIXEL_MODE_GRAY;
269
270	memset (bitmap.buffer, 0, w * h);
271
272	pango_ft2_render_layout (&bitmap, self->pl, 0 * PANGO_SCALE, 0 * PANGO_SCALE);
273
274	EXTEND (SP, 3);
275	PUSHs (sv_2mortal (newSViv (w)));
276	PUSHs (sv_2mortal (newSViv (h)));
277	PUSHs (sv_2mortal (retval));
278	}
279
280	MODULE = CFClient PACKAGE = CFClient::Texture
281
282	void
283	draw_quad (SV *self, double x, double y, double w = 0, double h = 0)
284	PROTOTYPE: $$$;$$
285	CODE:
286	{
287	HV hv = (HV )SvRV (self);
288	double s = SvNV (*hv_fetch (hv, "s", 1, 1));
289	double t = SvNV (*hv_fetch (hv, "t", 1, 1));
290	int name = SvIV (*hv_fetch (hv, "name", 4, 1));
291
292	if (items < 5)
293	{
294	w = SvNV (*hv_fetch (hv, "w", 1, 1));
295	h = SvNV (*hv_fetch (hv, "h", 1, 1));
296	}
297
298	glBindTexture (GL_TEXTURE_2D, name);
299	glBegin (GL_QUADS);
300	glTexCoord2d (0, 0); glVertex2d (x , y );
301	glTexCoord2d (0, t); glVertex2d (x , y + h);
302	glTexCoord2d (s, t); glVertex2d (x + w, y + h);
303	glTexCoord2d (s, 0); glVertex2d (x + w, y );
304	glEnd ();
305	}