cf.schmorp.de/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:	1.25
Committed:	Wed Apr 12 21:20:42 2006 UTC (20 years, 1 month ago) by root
Branch:	MAIN
Changes since 1.24:	+11 -4 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	root	1.25	#include <stdio.h>
7	root	1.5
8	root	1.2	#include <SDL.h>
9	root	1.23	#include <SDL_image.h>
10	root	1.3	#include <SDL_opengl.h>
11	root	1.5
12			#include <pango/pango.h>
13	root	1.10	#include <pango/pangofc-fontmap.h>
14	root	1.5	#include <pango/pangoft2.h>
15
16	root	1.10	#include <sys/types.h>
17			#include <sys/socket.h>
18			#include <netinet/in.h>
19			#include <netinet/tcp.h>
20
21	root	1.5	static PangoContext *context;
22			static PangoFontMap *fontmap;
23	root	1.2
24	root	1.14	typedef struct cf_layout {
25			PangoLayout *pl;
26			int base_height;
27	root	1.15	} *CFClient__Layout;
28	root	1.14
29			static void
30	root	1.19	substitute_func (FcPattern *pattern, gpointer data)
31			{
32	root	1.20	FcPatternAddBool (pattern, FC_HINTING , 1);
33			FcPatternAddBool (pattern, FC_AUTOHINT, 1);
34	root	1.19	}
35
36			static void
37	root	1.17	layout_update (CFClient__Layout self)
38			{
39	root	1.19	/* use a random scale factor to account for unknown descenders, 0.8 works
40			* reasonably well with bitstream vera
41			*/
42	root	1.17	PangoFontDescription *font = pango_context_get_font_description (context);
43	root	1.19	pango_font_description_set_absolute_size (font, self->base_height * (PANGO_SCALE * 8 / 10));
44	root	1.17	}
45
46			static void
47	root	1.15	layout_get_pixel_size (CFClient__Layout self, int w, int h)
48	root	1.14	{
49	root	1.19	layout_update (self);
50	root	1.16
51	root	1.14	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	root	1.15	MODULE = CFClient PACKAGE = CFClient
59	root	1.1
60	root	1.11	PROTOTYPES: ENABLE
61
62	root	1.5	BOOT:
63			{
64			fontmap = pango_ft2_font_map_new ();
65	root	1.19	pango_ft2_font_map_set_default_substitute ((PangoFT2FontMap *)fontmap, substitute_func, 0, 0);
66	root	1.8	context = pango_ft2_font_map_create_context ((PangoFT2FontMap *)fontmap);
67	root	1.5	}
68
69	root	1.10	void
70			lowdelay (int fd, int val = 1)
71			CODE:
72			setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val));
73
74	root	1.3	char *
75	root	1.4	gl_version ()
76			CODE:
77	root	1.5	RETVAL = (char *)glGetString (GL_VERSION);
78	root	1.4	OUTPUT:
79			RETVAL
80
81			char *
82	root	1.3	gl_extensions ()
83			CODE:
84	root	1.5	RETVAL = (char *)glGetString (GL_EXTENSIONS);
85	root	1.3	OUTPUT:
86			RETVAL
87
88	root	1.5	void
89	root	1.13	add_font (char *file)
90			CODE:
91			FcConfigAppFontAddFile (0, (const FcChar8 )file); / no idea wether this is required */
92
93			void
94	root	1.9	set_font (char *file)
95	root	1.8	CODE:
96			{
97	root	1.9	int count;
98			FcPattern pattern = FcFreeTypeQuery ((const FcChar8 )file, 0, 0, &count);
99	root	1.10	PangoFontDescription *font = pango_fc_font_description_from_pattern (pattern, 0);
100	root	1.9	FcPatternDestroy (pattern);
101	root	1.8	pango_context_set_font_description (context, font);
102			}
103
104	root	1.23	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	root	1.24	PUSHs (sv_2mortal (newSViv (surface->flags & (SDL_SRCCOLORKEY \| SDL_SRCALPHA) ? GL_RGBA : GL_RGB)));
152	root	1.23	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	root	1.25	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	root	1.15	MODULE = CFClient PACKAGE = CFClient::Layout
170	root	1.14
171	root	1.15	CFClient::Layout
172	root	1.14	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	root	1.15	DESTROY (CFClient::Layout self)
183	root	1.14	CODE:
184			g_object_unref (self->pl);
185			Safefree (self);
186	root	1.13
187	root	1.8	void
188	root	1.15	set_markup (CFClient::Layout self, SV *text_)
189	root	1.14	CODE:
190	root	1.5	{
191			STRLEN textlen;
192			char *text = SvPVutf8 (text_, textlen);
193	root	1.14
194			pango_layout_set_markup (self->pl, text, textlen);
195			}
196
197			void
198	root	1.16	set_height (CFClient::Layout self, int base_height)
199			CODE:
200			self->base_height = base_height;
201
202			void
203	root	1.15	set_width (CFClient::Layout self, int max_width = -1)
204	root	1.14	CODE:
205			pango_layout_set_width (self->pl, max_width < 0 ? max_width : max_width * PANGO_SCALE);
206
207			void
208	root	1.15	size (CFClient::Layout self)
209	root	1.14	PPCODE:
210			{
211			int w, h;
212
213	root	1.17	layout_update (self);
214	root	1.14	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	root	1.17	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	root	1.14	void
249	root	1.15	render (CFClient::Layout self)
250	root	1.14	PPCODE:
251			{
252	root	1.5	SV *retval;
253			int w, h;
254			FT_Bitmap bitmap;
255
256	root	1.17	layout_update (self);
257	root	1.14	layout_get_pixel_size (self, &w, &h);
258	root	1.5
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	root	1.14	pango_ft2_render_layout (&bitmap, self->pl, 0 * PANGO_SCALE, 0 * PANGO_SCALE);
273	root	1.1
274	root	1.5	EXTEND (SP, 3);
275			PUSHs (sv_2mortal (newSViv (w)));
276			PUSHs (sv_2mortal (newSViv (h)));
277			PUSHs (sv_2mortal (retval));
278			}
279	root	1.11
280	root	1.15	MODULE = CFClient PACKAGE = CFClient::Texture
281	root	1.11
282			void
283	root	1.12	draw_quad (SV *self, double x, double y, double w = 0, double h = 0)
284			PROTOTYPE: $$$;$$
285	root	1.11	CODE:
286			{
287	root	1.12	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	root	1.18	w = SvNV (*hv_fetch (hv, "w", 1, 1));
295			h = SvNV (*hv_fetch (hv, "h", 1, 1));
296	root	1.12	}
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	root	1.11	}