deliantra/Deliantra-Client/Client.xs

#ifdef _WIN32
# include <malloc.h>
#endif

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

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

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

#include <glib/gmacros.h>

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

#ifndef _WIN32
# include <sys/types.h>
# include <sys/socket.h>
# include <netinet/in.h>
# include <netinet/tcp.h>
# include <inttypes.h>
#else
 typedef unsigned char  uint8_t;
 typedef unsigned short uint16_t;
 typedef unsigned int   uint32_t;
 typedef   signed char  int8_t;
 typedef   signed short int16_t;
 typedef   signed int   int32_t;
#endif

#include "glext.h"

#define FOW_DARKNESS 32

#define MAP_EXTEND_X  32
#define MAP_EXTEND_Y 512

#define MIN_FONT_HEIGHT 10

#define GL_CALL(type,func,args)                                 \
  {                                                             \
    static int init_;                                           \
    static type fptr_;                                          \
                                                                \
    if (!init_)                                                 \
      {                                                         \
        init_ = 1;                                              \
        fptr_ = (type)SDL_GL_GetProcAddress (# func);           \
      }                                                         \
                                                                \
    if (fptr_)                                                  \
      fptr_ args;                                               \
  }

typedef Mix_Chunk *CFClient__MixChunk;
typedef Mix_Music *CFClient__MixMusic;

typedef PangoFontDescription *CFClient__Font;

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

static CFClient__Font default_font;
static PangoContext *context;
static PangoFontMap *fontmap;

static void
substitute_func (FcPattern *pattern, gpointer data)
{
  FcPatternAddBool (pattern, FC_HINTING , 1);
  FcPatternAddBool (pattern, FC_AUTOHINT, 0);
}

static void
layout_update_font (CFClient__Layout self)
{
  /* use a random scale factor to account for unknown descenders, 0.8 works
   * reasonably well with bitstream vera
   */
  PangoFontDescription *font = self->font ? self->font : default_font;

  pango_font_description_set_absolute_size (font,
    MAX (MIN_FONT_HEIGHT, self->base_height) * (PANGO_SCALE * 8 / 10));

  pango_layout_set_font_description (self->pl, font);
}

static void
layout_get_pixel_size (CFClient__Layout self, int *w, int *h)
{
  pango_layout_get_pixel_size (self->pl, w, h);

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

typedef uint16_t mapface;

typedef struct {
  GLint name;
  int w, h;
  float s, t;
  uint8_t r, g, b, a;
} maptex;

typedef struct {
  int16_t darkness;
  mapface face[3];
} mapcell;

typedef struct {
  int32_t c0, c1;
  mapcell *col;
} maprow;

typedef struct map {
  int x, y, w, h;
  int ox, oy; /* offset to virtual global coordinate system */
  int faces;
  mapface *face;

  int texs;
  maptex *tex;

  int32_t rows;
  maprow *row;
} *CFClient__Map;

static char *
prepend (char *ptr, int sze, int inc)
{
  char *p;

  New (0, p, sze + inc, char);
  Zero (p, inc, char);
  Move (ptr, p + inc, sze, char);
  Safefree (ptr);

  return p;
}

static char *
append (char *ptr, int sze, int inc)
{
  Renew (ptr, sze + inc, char);
  Zero (ptr + sze, inc, char);

  return ptr;
}

#define Append(type,ptr,sze,inc)  (ptr) = (type *)append  ((char *)ptr, (sze) * sizeof (type), (inc) * sizeof (type))
#define Prepend(type,ptr,sze,inc) (ptr) = (type *)prepend ((char *)ptr, (sze) * sizeof (type), (inc) * sizeof (type))

static maprow *
map_get_row (CFClient__Map self, int y)
{
  if (0 > y)
    {
      int extend = - y + MAP_EXTEND_Y;
      Prepend (maprow, self->row, self->rows, extend);

      self->rows += extend;
      self->y    += extend;
      y          += extend;
    }
  else if (y >= self->rows)
    {
      int extend = y - self->rows + MAP_EXTEND_Y;
      Append (maprow, self->row, self->rows, extend);
      self->rows += extend;
    }

  return self->row + y;
}

static mapcell *
row_get_cell (maprow *row, int x)
{
  if (!row->col)
    {
      Newz (0, row->col, MAP_EXTEND_X, mapcell);
      row->c0 = x - MAP_EXTEND_X / 4;
      row->c1 = row->c0 + MAP_EXTEND_X;
    }

  if (row->c0 > x)
    {
      int extend = row->c0 - x + MAP_EXTEND_X;
      Prepend (mapcell, row->col, row->c1 - row->c0, extend);
      row->c0 -= extend;
    }
  else if (x >= row->c1)
    {
      int extend = x - row->c1 + MAP_EXTEND_X;
      Append (mapcell, row->col, row->c1 - row->c0, extend);
      row->c1 += extend;
    }

  return row->col + (x - row->c0);
}

static mapcell *
map_get_cell (CFClient__Map self, int x, int y)
{
  return row_get_cell (map_get_row (self, y), x);
}

static void
map_clear (CFClient__Map self)
{
  int r;

  for (r = 0; r < self->rows; r++)
    Safefree (self->row[r].col);

  Safefree (self->row);

  self->x    = 0;
  self->y    = 0;
  self->ox   = 0;
  self->oy   = 0;
  self->row  = 0;
  self->rows = 0;
}

static void
map_blank (CFClient__Map self, int x0, int y0, int w, int h)
{
  int x, y;
  maprow *row;

  for (y = y0; y < y0 + h; y++)
    if (y >= 0)
      {
        if (y >= self->rows)
          break;

        row = self->row + y;

        for (x = x0; x < x0 + w; x++)
          if (x >= row->c0)
            {
              if (x >= row->c1)
                break;

              row->col[x - row->c0].darkness = -1;
            }
      }
}

static void
music_finished ()
{
  SDL_UserEvent ev;

  ev.type  = SDL_USEREVENT;
  ev.code  = 0;
  ev.data1 = 0;
  ev.data2 = 0;

  SDL_PushEvent ((SDL_Event *)&ev);
}

MODULE = CFClient       PACKAGE = CFClient

PROTOTYPES: ENABLE

BOOT:
{
  HV *stash = gv_stashpv ("CFClient", 1);
  static const struct {
    const char *name;
    IV iv;
  } *civ, const_iv[] = {
#       define const_iv(name) { # name, (IV)name }
        const_iv (SDL_ACTIVEEVENT),
        const_iv (SDL_KEYDOWN),
        const_iv (SDL_KEYUP),
        const_iv (SDL_MOUSEMOTION),
        const_iv (SDL_MOUSEBUTTONDOWN),
        const_iv (SDL_MOUSEBUTTONUP),
        const_iv (SDL_JOYAXISMOTION),
        const_iv (SDL_JOYBALLMOTION),
        const_iv (SDL_JOYHATMOTION),
        const_iv (SDL_JOYBUTTONDOWN),
        const_iv (SDL_JOYBUTTONUP),
        const_iv (SDL_QUIT),
        const_iv (SDL_SYSWMEVENT),
        const_iv (SDL_EVENT_RESERVEDA),
        const_iv (SDL_EVENT_RESERVEDB),
        const_iv (SDL_VIDEORESIZE),
        const_iv (SDL_VIDEOEXPOSE),
        const_iv (SDL_USEREVENT),
        const_iv (SDLK_KP0),
        const_iv (SDLK_KP1),
        const_iv (SDLK_KP2),
        const_iv (SDLK_KP3),
        const_iv (SDLK_KP4),
        const_iv (SDLK_KP5),
        const_iv (SDLK_KP6),
        const_iv (SDLK_KP7),
        const_iv (SDLK_KP8),
        const_iv (SDLK_KP9),
        const_iv (SDLK_KP_PERIOD),
        const_iv (SDLK_KP_DIVIDE),
        const_iv (SDLK_KP_MULTIPLY),
        const_iv (SDLK_KP_MINUS),
        const_iv (SDLK_KP_PLUS),
        const_iv (SDLK_KP_ENTER),
        const_iv (SDLK_KP_EQUALS),
        const_iv (SDLK_UP),
        const_iv (SDLK_DOWN),
        const_iv (SDLK_RIGHT),
        const_iv (SDLK_LEFT),
        const_iv (SDLK_INSERT),
        const_iv (SDLK_HOME),
        const_iv (SDLK_END),
        const_iv (SDLK_PAGEUP),
        const_iv (SDLK_PAGEDOWN),
        const_iv (SDLK_F1),
        const_iv (SDLK_F2),
        const_iv (SDLK_F3),
        const_iv (SDLK_F4),
        const_iv (SDLK_F5),
        const_iv (SDLK_F6),
        const_iv (SDLK_F7),
        const_iv (SDLK_F8),
        const_iv (SDLK_F9),
        const_iv (SDLK_F10),
        const_iv (SDLK_F11),
        const_iv (SDLK_F12),
        const_iv (SDLK_F13),
        const_iv (SDLK_F14),
        const_iv (SDLK_F15),
        const_iv (SDLK_NUMLOCK),
        const_iv (SDLK_CAPSLOCK),
        const_iv (SDLK_SCROLLOCK),
        const_iv (SDLK_RSHIFT),
        const_iv (SDLK_LSHIFT),
        const_iv (SDLK_RCTRL),
        const_iv (SDLK_LCTRL),
        const_iv (SDLK_RALT),
        const_iv (SDLK_LALT),
        const_iv (SDLK_RMETA),
        const_iv (SDLK_LMETA),
        const_iv (SDLK_LSUPER),
        const_iv (SDLK_RSUPER),
        const_iv (SDLK_MODE),
        const_iv (SDLK_COMPOSE),
        const_iv (SDLK_HELP),
        const_iv (SDLK_PRINT),
        const_iv (SDLK_SYSREQ),
        const_iv (SDLK_BREAK),
        const_iv (SDLK_MENU),
        const_iv (SDLK_POWER),
        const_iv (SDLK_EURO),
        const_iv (SDLK_UNDO),
        const_iv (KMOD_NONE),
        const_iv (KMOD_LSHIFT),
        const_iv (KMOD_RSHIFT),
        const_iv (KMOD_LCTRL),
        const_iv (KMOD_RCTRL),
        const_iv (KMOD_LALT),
        const_iv (KMOD_RALT),
        const_iv (KMOD_LMETA),
        const_iv (KMOD_RMETA),
        const_iv (KMOD_NUM),
        const_iv (KMOD_CAPS),
        const_iv (KMOD_MODE),
        const_iv (KMOD_CTRL),
        const_iv (KMOD_SHIFT),
        const_iv (KMOD_ALT),
        const_iv (KMOD_META)
#       undef const_iv
  };
    
  for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
    newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));

  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);
}

int
SDL_Init (U32 flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO)

void
SDL_Quit ()

void
SDL_ListModes ()
        PPCODE:
{
        SDL_Rect **m;
        
        SDL_GL_SetAttribute (SDL_GL_RED_SIZE, 5);
        SDL_GL_SetAttribute (SDL_GL_GREEN_SIZE, 5);
        SDL_GL_SetAttribute (SDL_GL_BLUE_SIZE, 5);
        SDL_GL_SetAttribute (SDL_GL_ALPHA_SIZE, 0);

        SDL_GL_SetAttribute (SDL_GL_ACCUM_RED_SIZE, 0);
        SDL_GL_SetAttribute (SDL_GL_ACCUM_GREEN_SIZE, 0);
        SDL_GL_SetAttribute (SDL_GL_ACCUM_BLUE_SIZE, 0);
        SDL_GL_SetAttribute (SDL_GL_ACCUM_ALPHA_SIZE, 0);

        SDL_GL_SetAttribute (SDL_GL_DOUBLEBUFFER, 1);
        SDL_GL_SetAttribute (SDL_GL_BUFFER_SIZE, 15);
        SDL_GL_SetAttribute (SDL_GL_DEPTH_SIZE, 0);

        SDL_EnableUNICODE (1);
        SDL_EnableKeyRepeat (SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);

        m = SDL_ListModes (0, SDL_FULLSCREEN | SDL_OPENGL);

        if (m && m != (SDL_Rect **)-1)
          while (*m)
            {
              AV *av = newAV ();
              av_push (av, newSViv ((*m)->w));
              av_push (av, newSViv ((*m)->h));
              XPUSHs (sv_2mortal (newRV_noinc ((SV *)av)));

              ++m;
            }
}

int
SDL_SetVideoMode (int w, int h, int fullscreen)
        CODE:
        RETVAL = !!SDL_SetVideoMode (
          w, h, 0, SDL_OPENGL | (fullscreen ? SDL_FULLSCREEN : 0)
        );
        SDL_WM_SetCaption ("Crossfire+ Client " VERSION, "Crossfire+");
        OUTPUT:
        RETVAL

void
SDL_GL_SwapBuffers ()

void
SDL_PollEvent ()
        PPCODE:
{
        SDL_Event ev;

        while (SDL_PollEvent (&ev))
          {
            HV *hv = newHV ();
            hv_store (hv, "type", 4, newSViv (ev.type), 0);
            switch (ev.type)
              {
                case SDL_KEYDOWN:
                case SDL_KEYUP:
                  hv_store (hv, "state",   5, newSViv (ev.key.state), 0);
                  hv_store (hv, "sym",     3, newSViv (ev.key.keysym.sym), 0);
                  hv_store (hv, "mod",     3, newSViv (ev.key.keysym.mod), 0);
                  hv_store (hv, "unicode", 7, newSViv (ev.key.keysym.unicode), 0);
                  break;

                case SDL_ACTIVEEVENT:
                  hv_store (hv, "gain",   4, newSViv (ev.active.gain), 0);
                  hv_store (hv, "state",  5, newSViv (ev.active.state), 0);
                  break;

                case SDL_MOUSEMOTION:
                  hv_store (hv, "state",  5, newSViv (ev.motion.state), 0);
                  hv_store (hv, "x",      1, newSViv (ev.motion.x), 0);
                  hv_store (hv, "y",      1, newSViv (ev.motion.y), 0);
                  hv_store (hv, "xrel",   4, newSViv (ev.motion.xrel), 0);
                  hv_store (hv, "yrel",   4, newSViv (ev.motion.yrel), 0);
                  break;

                case SDL_MOUSEBUTTONDOWN:
                case SDL_MOUSEBUTTONUP:
                  hv_store (hv, "button", 6, newSViv (ev.button.button), 0);
                  hv_store (hv, "state",  5, newSViv (ev.button.state), 0);
                  hv_store (hv, "x",      1, newSViv (ev.button.x), 0);
                  hv_store (hv, "y",      1, newSViv (ev.button.y), 0);
              }

            XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv)));
          }
}

int
Mix_OpenAudio (int frequency = 22050, int format = MIX_DEFAULT_FORMAT, int channels = 1, int chunksize = 512)
        POSTCALL:
        Mix_HookMusicFinished (music_finished);

void
Mix_CloseAudio ()

int
Mix_AllocateChannels (int numchans = -1)

void
lowdelay (int fd, int val = 1)
        CODE:
#ifndef _WIN32
        setsockopt (fd, IPPROTO_TCP, TCP_NODELAY, &val, sizeof (val));
#endif

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
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: %s", SDL_GetError ());

        surface = IMG_Load_RW (rw, 1);
        if (!surface)
          croak ("load_image: %s", SDL_GetError ());

        fmt.palette = NULL;
        fmt.BitsPerPixel = 32;
        fmt.BytesPerPixel = 4;
#if SDL_BYTEORDER == SDL_LIL_ENDIAN
        fmt.Rmask = 0x000000ff;
        fmt.Gmask = 0x0000ff00;
        fmt.Bmask = 0x00ff0000;
        fmt.Amask = 0xff000000;
#else
        fmt.Rmask = 0xff000000;
        fmt.Gmask = 0x00ff0000;
        fmt.Bmask = 0x0000ff00;
        fmt.Amask = 0x000000ff;
#endif
        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);

        assert (surface2->pitch == surface2->w * 4);

        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_BYTE)));

        SDL_FreeSurface (surface);
        SDL_FreeSurface (surface2);
}

void
average (int x, int y, uint32_t *data)
        PPCODE:
{
        uint32_t r = 0, g = 0, b = 0, a = 0;

        x = y = x * y;

        while (x--)
          {
            uint32_t p = *data++;

            r += (p      ) & 255;
            g += (p >>  8) & 255;
            b += (p >> 16) & 255;
            a += (p >> 24) & 255;
          }

        EXTEND (SP, 4);
        PUSHs (sv_2mortal (newSViv (r / y)));
        PUSHs (sv_2mortal (newSViv (g / y)));
        PUSHs (sv_2mortal (newSViv (b / y)));
        PUSHs (sv_2mortal (newSViv (a / y)));
}

void
error (char *message)
        CODE:
#ifdef _WIN32
        MessageBox (0, message, "Crossfire+ Error", MB_OK | MB_ICONERROR | MB_SETFOREGROUND);
#else
        fprintf (stderr, "ERROR: %s\n", message);
#endif

void
fatal (char *message)
        CODE:
#ifdef _WIN32
        MessageBox (0, message, "Crossfire+ Fatal Error", MB_OK | MB_ICONERROR | MB_SETFOREGROUND);
#else
        fprintf (stderr, "FATAL: %s\n", message);
#endif
        exit (1);

MODULE = CFClient       PACKAGE = CFClient::Font

CFClient::Font
new_from_file (SV *class, char *path)
        CODE:
{
        int count;
        FcPattern *pattern = FcFreeTypeQuery ((const FcChar8 *)path, 0, 0, &count);
        RETVAL = pango_fc_font_description_from_pattern (pattern, 0);
        FcPatternDestroy (pattern);
}
        OUTPUT:
        RETVAL

void
DESTROY (CFClient::Font self)
        CODE:
        pango_font_description_free (self);

void
make_default (CFClient::Font self)
        CODE:
        default_font = self;

MODULE = CFClient       PACKAGE = CFClient::Layout

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

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

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

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

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

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

SV *
get_text (CFClient::Layout self)
        CODE:
        RETVAL = newSVpv (pango_layout_get_text (self->pl), 0);
        SvUTF8_on (RETVAL);
        OUTPUT:
        RETVAL

void
set_font (CFClient::Layout self, CFClient::Font font = 0)
        CODE:
        if (self->font != font)
          {
            self->font = font;
            layout_update_font (self);
          }

void
set_height (CFClient::Layout self, int base_height)
        CODE:
        if (self->base_height != base_height)
          {
            self->base_height = base_height;
            layout_update_font (self);
          }

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)));
}

int
xy_to_index (CFClient::Layout self, int x, int y)
        CODE:
{
        int index, trailing;
        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;
        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_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, float x, float y, float w = 0, float h = 0)
        PROTOTYPE: $$$;$$
        CODE:
{
        HV *hv = (HV *)SvRV (self);
        float s = SvNV (*hv_fetch (hv, "s", 1, 1));
        float t = SvNV (*hv_fetch (hv, "t", 1, 1));
        int name = SvIV (*hv_fetch (hv, "name", 4, 1));
        int wrap_mode = SvIV (*hv_fetch (hv, "wrap_mode", 9, 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);
        if (wrap_mode) {
           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
        }
        glBegin (GL_QUADS);
        glTexCoord2f (0, 0); glVertex2f (x    , y    );
        glTexCoord2f (0, t); glVertex2f (x    , y + h);
        glTexCoord2f (s, t); glVertex2f (x + w, y + h);
        glTexCoord2f (s, 0); glVertex2f (x + w, y    );
        glEnd ();
}

MODULE = CFClient       PACKAGE = CFClient::Map

CFClient::Map
new (SV *class, int map_width, int map_height)
        CODE:
        New (0, RETVAL, 1, struct map);
        RETVAL->x  = 0;
        RETVAL->y  = 0;
        RETVAL->w  = map_width;
        RETVAL->h  = map_height;
        RETVAL->ox = 0;
        RETVAL->oy = 0;
        RETVAL->faces = 8192;
        Newz (0, RETVAL->face, RETVAL->faces, mapface);
        RETVAL->texs = 8192;
        Newz (0, RETVAL->tex, RETVAL->texs, maptex);
        RETVAL->rows = 0;
        RETVAL->row = 0;
        OUTPUT:
        RETVAL

void
DESTROY (CFClient::Map self)
        CODE:
{
        map_clear (self);
        Safefree (self->face);
        Safefree (self);
}

void
clear (CFClient::Map self)
        CODE:
        map_clear (self);

void
set_face (CFClient::Map self, int face, int texid)
        CODE:
{
        while (self->faces <= face)
          {
            Append (mapface, self->face, self->faces, self->faces);
            self->faces *= 2;
          }

        self->face [face] = texid;
}

void
set_texture (CFClient::Map self, int texid, int name, int w, int h, float s, float t, int r, int g, int b, int a)
        CODE:
{
        while (self->texs <= texid)
          {
            Append (maptex, self->tex, self->texs, self->texs);
            self->texs *= 2;
          }

        {
          maptex *tex = self->tex + texid;

          tex->name = name;
          tex->w = w;
          tex->h = h;
          tex->s = s;
          tex->t = t;
          tex->r = r;
          tex->g = g;
          tex->b = b;
          tex->a = a;
        }
}

int
ox (CFClient::Map self)
        ALIAS:
           oy = 1
        CODE:
        switch (ix)
          {
            case 0: RETVAL = self->ox; break;
            case 1: RETVAL = self->oy; break;
          }
        OUTPUT:
        RETVAL

void
scroll (CFClient::Map self, int dx, int dy)
        CODE:
{
        if (dx > 0)
          map_blank (self, self->x, self->y, dx - 1, self->h);
        else if (dx < 0)
          map_blank (self, self->x + self->w + dx + 1, self->y, 1 - dx, self->h);

        if (dy > 0)
          map_blank (self, self->x, self->y, self->w, dy - 1);
        else if (dy < 0)
          map_blank (self, self->x, self->y + self->h + dy + 1, self->w, 1 - dy);

        self->ox += dx; self->x += dx;
        self->oy += dy; self->y += dy;

        while (self->y < 0)
          {
            Prepend (maprow, self->row, self->rows, MAP_EXTEND_Y);
             
            self->rows += MAP_EXTEND_Y;
            self->y    += MAP_EXTEND_Y;
          }
}

void
map1a_update (CFClient::Map self, SV *data_)
        CODE:
{
        uint8_t *data = (uint8_t *)SvPVbyte_nolen (data_);
        uint8_t *data_end = (uint8_t *)SvEND (data_);
        mapcell *cell;
        int x, y, flags;

        while (data < data_end)
          {
            flags = (data [0] << 8) + data [1]; data += 2;
            
            x = ((flags >> 10) & 63) + self->x;
            y = ((flags >>  4) & 63) + self->y;

            cell = map_get_cell (self, x, y);

            if (flags & 15)
              {
                if (cell->darkness < 0)
                  {
                    cell->darkness = 0;
                    cell->face [0] = 0;
                    cell->face [1] = 0;
                    cell->face [2] = 0;
                  }

                cell->darkness = flags & 8 ? *data++ : 255;

                //TODO: don't trust server data to be in-range(!)

                if (flags & 4)
                  {
                    cell->face [0] = self->face [(data [0] << 8) + data [1]]; data += 2;
                  }

                if (flags & 2)
                  {
                    cell->face [1] = self->face [(data [0] << 8) + data [1]]; data += 2;
                  }

                if (flags & 1)
                  {
                    cell->face [2] = self->face [(data [0] << 8) + data [1]]; data += 2;
                  }
              }
            else
              cell->darkness = -1;
          }
}

SV *
mapmap (CFClient::Map self, int x0, int y0, int w, int h)
        CODE:
{
        int x1, x;
        int y1, y;
        int z;
        SV *map_sv = newSV (w * h * sizeof (uint32_t));
        uint32_t *map = (uint32_t *)SvPVX (map_sv);

        SvPOK_only (map_sv);
        SvCUR_set (map_sv, w * h * sizeof (uint32_t));

        x0 += self->x; x1 = x0 + w;
        y0 += self->y; y1 = y0 + h;

        for (y = y0; y < y1; y++)
          {
            maprow *row = 0 <= y && y < self->rows
              ? self->row + y
              : 0;

            for (x = x0; x < x1; x++)
              {
                int r = 32, g = 32, b = 32, a = 192;

                if (row && row->c0 <= x && x < row->c1)
                  {
                    mapcell *cell = row->col + (x - row->c0);

                    for (z = 0; z <= 0; z++)
                      {
                        mapface face = cell->face [z];

                        if (face)
                          {
                            maptex tex = self->tex [face];
                            int a0 = 255 - tex.a;
                            int a1 = tex.a;

                            r = (r * a0 + tex.r * a1) / 255;
                            g = (g * a0 + tex.g * a1) / 255;
                            b = (b * a0 + tex.b * a1) / 255;
                            a = (a * a0 + tex.a * a1) / 255;
                          }
                      }
                  }

                *map++ = (r      )
                       | (g <<  8)
                       | (b << 16)
                       | (a << 24);
              }
          }

        RETVAL = map_sv;
}
        OUTPUT:
        RETVAL

void
draw (CFClient::Map self, int shift_x, int shift_y, int x0, int y0, int sw, int sh)
        PPCODE:
{
        int vx, vy;
        int x, y, z;
        int last_name;
        mapface face;
        int sw4 = (sw + 3) & ~3;
        SV *darkness_sv = sv_2mortal (newSV (sw4 * sh));
        uint8_t *darkness = (uint8_t *)SvPVX (darkness_sv);

        memset (darkness, 255, sw4 * sh);
        SvPOK_only (darkness_sv);
        SvCUR_set (darkness_sv, sw4 * sh);

        vx = self->x + (self->w - sw) / 2 - shift_x;
        vy = self->y + (self->h - sh) / 2 - shift_y;

        /*
        int vx = self->vx = self->w >= sw
          ? self->x + (self->w - sw) / 2
          : MIN (self->x, MAX (self->x + self->w - sw + 1, self->vx));

        int vy = self->vy = self->h >= sh
          ? self->y + (self->h - sh) / 2
          : MIN (self->y, MAX (self->y + self->h - sh + 1, self->vy));
        */

        glColor4ub (255, 255, 255, 255);

        glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
        glEnable (GL_BLEND);
        glEnable (GL_TEXTURE_2D);
        glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

        glBegin (GL_QUADS);

        last_name = 0;

        for (z = 0; z < 3; z++)
          for (y = 0; y < sh; y++)
            if (0 <= y + vy && y + vy < self->rows)
              {
                maprow *row = self->row + (y + vy);

                for (x = 0; x < sw; x++)
                  if (row->c0 <= x + vx && x + vx < row->c1)
                    {
                      mapcell *cell = row->col + (x + vx - row->c0);

                      darkness[y * sw4 + x] = cell->darkness < 0
                        ? 255 - FOW_DARKNESS
                        : 255 - cell->darkness;

                      face = cell->face [z];

                      if (face)
                        {
                          maptex tex = self->tex [face];

                          int px = (x + 1) * 32 - tex.w;
                          int py = (y + 1) * 32 - tex.h;

                          if (last_name != tex.name)
                            {
                              glEnd ();
                              last_name = tex.name;
                              glBindTexture (GL_TEXTURE_2D, last_name);
                              glBegin (GL_QUADS);
                            }

                          glTexCoord2f (0    , 0    ); glVertex2f (px        , py        );
                          glTexCoord2f (0    , tex.t); glVertex2f (px        , py + tex.h);
                          glTexCoord2f (tex.s, tex.t); glVertex2f (px + tex.w, py + tex.h);
                          glTexCoord2f (tex.s, 0    ); glVertex2f (px + tex.w, py        );
                        }
                    }
              }

        glEnd ();

        glDisable (GL_TEXTURE_2D);
        glDisable (GL_BLEND);

        EXTEND (SP, 3);
        PUSHs (sv_2mortal (newSViv (sw4)));
        PUSHs (sv_2mortal (newSViv (sh)));
        PUSHs (darkness_sv);
}

SV *
get_rect (CFClient::Map self, int x0, int y0, int w, int h)
        CODE:
{
        int x, y, x1, y1;
        SV *data_sv = newSV (w * h * 7 + 5);
        uint8_t *data = (uint8_t *)SvPVX (data_sv);

        *data++ = 0; /* version 0 format */
        *data++ = w >> 8; *data++ = w;
        *data++ = h >> 8; *data++ = h;

        // we need to do this 'cause we don't keep an absolute coord system for rows
        // TODO: treat rows as we treat columns
        map_get_row (self, y0 + self->y - self->oy);//D
        map_get_row (self, y0 + self->y - self->oy + h - 1);//D

        x0 += self->x - self->ox;
        y0 += self->y - self->oy;

        x1 = x0 + w;
        y1 = y0 + h;

        for (y = y0; y < y1; y++)
          {
            maprow *row = 0 <= y && y < self->rows
              ? self->row + y
              : 0;

            for (x = x0; x < x1; x++)
              {
                if (row && row->c0 <= x && x < row->c1)
                  {
                    mapcell *cell = row->col + (x - row->c0);
                    uint8_t flags = 0;

                    if (cell->face [0]) flags |= 1;
                    if (cell->face [1]) flags |= 2;
                    if (cell->face [2]) flags |= 4;

                    *data++ = flags;

                    if (flags & 1)
                      {
                        *data++ = cell->face [0] >> 8;
                        *data++ = cell->face [0];
                      }

                    if (flags & 2)
                      {
                        *data++ = cell->face [1] >> 8;
                        *data++ = cell->face [1];
                      }

                    if (flags & 4)
                      {
                        *data++ = cell->face [2] >> 8;
                        *data++ = cell->face [2];
                      }
                  }
                else
                  *data++ = 0;
              }
          }

        SvPOK_only (data_sv);
        SvCUR_set (data_sv, data - (uint8_t *)SvPVX (data_sv));
        RETVAL = data_sv;
}
        OUTPUT:
        RETVAL

void
set_rect (CFClient::Map self, int x0, int y0, uint8_t *data)
        PPCODE:
{
        int x, y, z;
        int w, h;
        int x1, y1;

        if (*data++ != 0)
          return; /* version mismatch */

        w = *data++ << 8; w |= *data++;
        h = *data++ << 8; h |= *data++;

        // we need to do this 'cause we don't keep an absolute coord system for rows
        // TODO: treat rows as we treat columns
        map_get_row (self, y0 + self->y - self->oy);//D
        map_get_row (self, y0 + self->y - self->oy + h - 1);//D

        x0 += self->x - self->ox;
        y0 += self->y - self->oy;

        x1 = x0 + w;
        y1 = y0 + h;

        for (y = y0; y < y1; y++)
          {
            maprow *row = map_get_row (self, y);

            for (x = x0; x < x1; x++)
              {
                uint8_t flags = *data++;

                if (flags)
                  {
                    mapface face[3] = { 0, 0, 0 };

                    mapcell *cell = row_get_cell (row, x);

                    if (flags & 1) { face[0] = *data++ << 8; face[0] |= *data++; }
                    if (flags & 2) { face[1] = *data++ << 8; face[1] |= *data++; }
                    if (flags & 4) { face[2] = *data++ << 8; face[2] |= *data++; }

                    if (cell->darkness <= 0)
                      {
                        cell->darkness = -1;

                        for (z = 0; z <= 2; z++)
                          {
                            cell->face[z] = face[z];

                            if (face[z] && (face[z] >= self->texs || !self->tex[face [z]].name))
                              XPUSHs (sv_2mortal (newSViv (face[z])));
                          }
                      }
                  }
              }
          }
}

MODULE = CFClient       PACKAGE = CFClient::MixChunk

CFClient::MixChunk
new_from_file (SV *class, char *path)
        CODE:
        RETVAL = Mix_LoadWAV (path);
        OUTPUT:
        RETVAL

void
DESTROY (CFClient::MixChunk self)
        CODE:
        Mix_FreeChunk (self);

int
volume (CFClient::MixChunk self, int volume = -1)
        CODE:
        RETVAL = Mix_VolumeChunk (self, volume);
        OUTPUT:
        RETVAL

int
play (CFClient::MixChunk self, int channel = -1, int loops = 0, int ticks = -1)
        CODE:
        RETVAL = Mix_PlayChannelTimed (channel, self, loops, ticks);
        OUTPUT:
        RETVAL

MODULE = CFClient       PACKAGE = CFClient::MixMusic

int
volume (int volume = -1)
        CODE:
        RETVAL = Mix_VolumeMusic (volume);
        OUTPUT:
        RETVAL

CFClient::MixMusic
new_from_file (SV *class, char *path)
        CODE:
        RETVAL = Mix_LoadMUS (path);
        OUTPUT:
        RETVAL

void
DESTROY (CFClient::MixMusic self)
        CODE:
        Mix_FreeMusic (self);

int
play (CFClient::MixMusic self, int loops = -1)
        CODE:
        RETVAL = Mix_PlayMusic (self, loops);
        OUTPUT:
        RETVAL

MODULE = CFClient       PACKAGE = CFClient::OpenGL

BOOT:
{
  HV *stash = gv_stashpv ("CFClient::OpenGL", 1);
  static const struct {
    const char *name;
    IV iv;
  } *civ, const_iv[] = {
#       define const_iv(name) { # name, (IV)name }
        const_iv (GL_COLOR_MATERIAL),
        const_iv (GL_SMOOTH),
        const_iv (GL_FLAT),
        const_iv (GL_BLEND),
        const_iv (GL_AND),
        const_iv (GL_ONE),
        const_iv (GL_ZERO),
        const_iv (GL_SRC_ALPHA),
        const_iv (GL_SRC_ALPHA_SATURATE),
        const_iv (GL_ONE_MINUS_SRC_ALPHA),
        const_iv (GL_ONE_MINUS_DST_ALPHA),
        const_iv (GL_RGB),
        const_iv (GL_RGBA),
        const_iv (GL_UNSIGNED_BYTE),
        const_iv (GL_ALPHA),
        const_iv (GL_FLOAT),
        const_iv (GL_UNSIGNED_INT_8_8_8_8_REV),
        const_iv (GL_COMPILE),
        const_iv (GL_TEXTURE_1D),
        const_iv (GL_TEXTURE_2D),
        const_iv (GL_TEXTURE_ENV),
        const_iv (GL_TEXTURE_MAG_FILTER),
        const_iv (GL_TEXTURE_MIN_FILTER),
        const_iv (GL_TEXTURE_ENV_MODE),
        const_iv (GL_TEXTURE_WRAP_S),
        const_iv (GL_TEXTURE_WRAP_T),
        const_iv (GL_CLAMP),
        const_iv (GL_REPEAT),
        const_iv (GL_NEAREST),
        const_iv (GL_LINEAR),
        const_iv (GL_NEAREST_MIPMAP_NEAREST),
        const_iv (GL_LINEAR_MIPMAP_NEAREST),
        const_iv (GL_NEAREST_MIPMAP_LINEAR),
        const_iv (GL_LINEAR_MIPMAP_LINEAR),
        const_iv (GL_GENERATE_MIPMAP),
        const_iv (GL_MODULATE),
        const_iv (GL_REPLACE),
        const_iv (GL_COLOR_BUFFER_BIT),
        const_iv (GL_PROJECTION),
        const_iv (GL_MODELVIEW),
        const_iv (GL_COLOR_LOGIC_OP),
        const_iv (GL_CONVOLUTION_2D),
        const_iv (GL_CONVOLUTION_BORDER_MODE),
        const_iv (GL_CONSTANT_BORDER),
        const_iv (GL_LINES),
        const_iv (GL_QUADS),
        const_iv (GL_LINE_LOOP),
        const_iv (GL_PERSPECTIVE_CORRECTION_HINT),
        const_iv (GL_FASTEST),
#       undef const_iv
  };
    
  for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ-- > const_iv; )
    newCONSTSUB (stash, (char *)civ->name, newSViv (civ->iv));
}

int glGetError ()

void glClear (int mask)

void glClearColor (float r, float g, float b, float a = 1.0)
        PROTOTYPE: @

void glEnable (int cap)

void glDisable (int cap)

void glShadeModel (int mode)

void glHint (int target, int mode)

void glBlendFunc (int sfactor, int dfactor)

void glLogicOp (int opcode)

void glMatrixMode (int mode)

void glPushMatrix ()

void glPopMatrix ()

void glLoadIdentity ()

# near and far are due to microsofts buggy c compiler
void glOrtho (double left, double right, double bottom, double top, double near_, double far_)

void glViewport (int x, int y, int width, int height)

void glTranslate (float x, float y, float z = 0.)
        CODE:
        glTranslatef (x, y, z);

void glScale (float x, float y, float z = 1.)
        CODE:
        glScalef (x, y, z);

void glRotate (float angle, float x, float y, float z)
        CODE:
        glRotatef (angle, x, y, z);

void glBegin (int mode)

void glEnd ()

void glColor (float r, float g, float b, float a = 1.0)
        PROTOTYPE: @
        CODE:
        glColor4f (r, g, b, a);

void glVertex (float x, float y, float z = 0.)
        CODE:
        glVertex3f (x, y, z);

void glTexCoord (float s, float t)
        CODE:
        glTexCoord2f (s, t);

void glTexEnv (int target, int pname, float param)
        CODE:
        glTexEnvf (target, pname, param);

void glTexParameter (int target, int pname, float param)
        CODE:
        glTexParameterf (target, pname, param);

void glBindTexture (int target, int name)

void glConvolutionParameter (int target, int pname, float params)
        CODE:
        GL_CALL (PFNGLCONVOLUTIONPARAMETERFEXTPROC, glConvolutionParameterf, (target, pname, params));

void glConvolutionFilter2D (int target, int internalformat, int width, int height, int format, int type, char *data)
        CODE:
        GL_CALL (PFNGLCONVOLUTIONFILTER2DEXTPROC, glConvolutionFilter2D,
                 (target, internalformat, width, height, format, type, data));

void glTexImage2D (int target, int level, int internalformat, int width, int height, int border, int format, int type, char *data)

void glCopyTexImage2D (int target, int level, int internalformat, int x, int y, int width, int height, int border)

int glGenTexture ()
        CODE:
{
        GLuint name;
        glGenTextures (1, &name);
        RETVAL = name;
}
        OUTPUT:
        RETVAL

void glDeleteTexture (int name)
        CODE:
{
        GLuint name_ = name;
        glDeleteTextures (1, &name_);
}
        
int glGenList ()
        CODE:
        RETVAL = glGenLists (1);
        OUTPUT:
        RETVAL

void glDeleteList (int list)
        CODE:
        glDeleteLists (list, 1);

void glNewList (int list, int mode = GL_COMPILE)

void glEndList ()

void glCallList (int list)

Revision:	1.67
Committed:	Tue Apr 25 11:18:48 2006 UTC (18 years ago) by root
Branch:	MAIN
Changes since 1.66:	+5 -2 lines
Log Message:	do not require an alpha channel for the framebuffer for the sake of software-renderers