git.sesse.net Git - vlc/blob - modules/video_output/msw/wingdi.c

   1 /*****************************************************************************
   2  * wingdi.c : Win32 / WinCE GDI video output plugin for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2002-2009 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Gildas Bazin <gbazin@videolan.org>
   8  *          Samuel Hocevar <sam@zoy.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32 #include <assert.h>
  33
  34 #include <vlc_common.h>
  35 #include <vlc_plugin.h>
  36 #include <vlc_vout_display.h>
  37
  38 #include <windows.h>
  39 #include <commctrl.h>
  40
  41 #include "common.h"
  42
  43 #ifndef WS_NONAVDONEBUTTON
  44 #   define WS_NONAVDONEBUTTON 0
  45 #endif
  46
  47 /*****************************************************************************
  48  * Module descriptor
  49  *****************************************************************************/
  50 static int  Open (vlc_object_t *);
  51 static void Close(vlc_object_t *);
  52
  53 vlc_module_begin ()
  54     set_category(CAT_VIDEO)
  55     set_subcategory(SUBCAT_VIDEO_VOUT)
  56 #ifdef MODULE_NAME_IS_wingapi
  57     set_shortname("GAPI")
  58     set_description(N_("Windows GAPI video output"))
  59     set_capability("vout display", 20)
  60 #else
  61     set_shortname("GDI")
  62     set_description(N_("Windows GDI video output"))
  63     set_capability("vout display", 10)
  64 #endif
  65     set_callbacks(Open, Close)
  66 vlc_module_end ()
  67
  68
  69 /*****************************************************************************
  70  * Local prototypes
  71  *****************************************************************************/
  72 static picture_pool_t *Pool  (vout_display_t *, unsigned);
  73 static void           Display(vout_display_t *, picture_t *);
  74 static int            Control(vout_display_t *, int, va_list);
  75 static void           Manage (vout_display_t *);
  76
  77 static int            Init(vout_display_t *, video_format_t *, int, int);
  78 static void           Clean(vout_display_t *);
  79
  80 /* */
  81 static int Open(vlc_object_t *object)
  82 {
  83     vout_display_t *vd = (vout_display_t *)object;
  84     vout_display_sys_t *sys;
  85
  86     vd->sys = sys = calloc(1, sizeof(*sys));
  87     if (!sys)
  88         return VLC_ENOMEM;
  89
  90 #ifdef MODULE_NAME_IS_wingapi
  91     /* Load GAPI */
  92     sys->gapi_dll = LoadLibrary(_T("GX.DLL"));
  93     if (!sys->gapi_dll) {
  94         msg_Warn(vd, "failed loading gx.dll");
  95         free(sys);
  96         return VLC_EGENERIC;
  97     }
  98
  99     GXOpenDisplay = (void *)GetProcAddress(sys->gapi_dll,
 100         _T("?GXOpenDisplay@@YAHPAUHWND__@@K@Z"));
 101     GXCloseDisplay = (void *)GetProcAddress(sys->gapi_dll,
 102         _T("?GXCloseDisplay@@YAHXZ"));
 103     GXBeginDraw = (void *)GetProcAddress(sys->gapi_dll,
 104         _T("?GXBeginDraw@@YAPAXXZ"));
 105     GXEndDraw = (void *)GetProcAddress(sys->gapi_dll,
 106         _T("?GXEndDraw@@YAHXZ"));
 107     GXGetDisplayProperties = (void *)GetProcAddress(sys->gapi_dll,
 108         _T("?GXGetDisplayProperties@@YA?AUGXDisplayProperties@@XZ"));
 109     GXSuspend = (void *)GetProcAddress(sys->gapi_dll,
 110         _T("?GXSuspend@@YAHXZ"));
 111     GXResume = GetProcAddress(sys->gapi_dll,
 112         _T("?GXResume@@YAHXZ"));
 113
 114     if (!GXOpenDisplay || !GXCloseDisplay ||
 115         !GXBeginDraw || !GXEndDraw ||
 116         !GXGetDisplayProperties || !GXSuspend || !GXResume) {
 117         msg_Err(vd, "failed GetProcAddress on gapi.dll");
 118         free(sys);
 119         return VLC_EGENERIC;
 120     }
 121
 122     msg_Dbg(vd, "GAPI DLL loaded");
 123 #endif
 124
 125     if (CommonInit(vd))
 126         goto error;
 127
 128     /* */
 129     video_format_t fmt = vd->fmt;
 130     if (Init(vd, &fmt, fmt.i_width, fmt.i_height))
 131         goto error;
 132
 133     vout_display_info_t info = vd->info;
 134     info.is_slow              = false;
 135     info.has_double_click     = true;
 136     info.has_hide_mouse       = false;
 137     info.has_pictures_invalid = true;
 138
 139     /* */
 140     vd->fmt  = fmt;
 141     vd->info = info;
 142
 143     vd->pool    = Pool;
 144     vd->prepare = NULL;
 145     vd->display = Display;
 146     vd->manage  = Manage;
 147     vd->control = Control;
 148     return VLC_SUCCESS;
 149
 150 error:
 151     Close(VLC_OBJECT(vd));
 152     return VLC_EGENERIC;
 153 }
 154
 155 /* */
 156 static void Close(vlc_object_t *object)
 157 {
 158     vout_display_t *vd = (vout_display_t *)object;
 159
 160     Clean(vd);
 161
 162     CommonClean(vd);
 163
 164 #ifdef MODULE_NAME_IS_wingapi
 165     FreeLibrary(vd->sys->gapi_dll);
 166 #endif
 167
 168     free(vd->sys);
 169 }
 170
 171 /* */
 172 static picture_pool_t *Pool(vout_display_t *vd, unsigned count)
 173 {
 174     VLC_UNUSED(count);
 175     return vd->sys->pool;
 176 }
 177 static void Display(vout_display_t *vd, picture_t *picture)
 178 {
 179     vout_display_sys_t *sys = vd->sys;
 180
 181 #ifdef MODULE_NAME_IS_wingapi
 182     /* */
 183 #else
 184 #define rect_src vd->sys->rect_src
 185 #define rect_src_clipped vd->sys->rect_src_clipped
 186 #define rect_dest vd->sys->rect_dest
 187 #define rect_dest_clipped vd->sys->rect_dest_clipped
 188     RECT rect_dst = rect_dest_clipped;
 189     HDC hdc = GetDC(sys->hvideownd);
 190
 191     OffsetRect(&rect_dst, -rect_dest.left, -rect_dest.top);
 192     SelectObject(sys->off_dc, sys->off_bitmap);
 193
 194     if (rect_dest_clipped.right - rect_dest_clipped.left !=
 195         rect_src_clipped.right - rect_src_clipped.left ||
 196         rect_dest_clipped.bottom - rect_dest_clipped.top !=
 197         rect_src_clipped.bottom - rect_src_clipped.top) {
 198         StretchBlt(hdc, rect_dst.left, rect_dst.top,
 199                    rect_dst.right, rect_dst.bottom,
 200                    sys->off_dc,
 201                    rect_src_clipped.left,  rect_src_clipped.top,
 202                    rect_src_clipped.right, rect_src_clipped.bottom,
 203                    SRCCOPY);
 204     } else {
 205         BitBlt(hdc, rect_dst.left, rect_dst.top,
 206                rect_dst.right, rect_dst.bottom,
 207                sys->off_dc,
 208                rect_src_clipped.left, rect_src_clipped.top,
 209                SRCCOPY);
 210     }
 211
 212     ReleaseDC(sys->hvideownd, hdc);
 213 #undef rect_src
 214 #undef rect_src_clipped
 215 #undef rect_dest
 216 #undef rect_dest_clipped
 217 #endif
 218     /* TODO */
 219     picture_Release(picture);
 220
 221     CommonDisplay(vd);
 222 }
 223 static int Control(vout_display_t *vd, int query, va_list args)
 224 {
 225     switch (query) {
 226     case VOUT_DISPLAY_RESET_PICTURES:
 227         assert(0);
 228         return VLC_EGENERIC;
 229     default:
 230         return CommonControl(vd, query, args);
 231     }
 232
 233 }
 234 static void Manage(vout_display_t *vd)
 235 {
 236     CommonManage(vd);
 237 }
 238
 239 #ifdef MODULE_NAME_IS_wingapi
 240 struct picture_sys_t {
 241     vout_display_t *vd;
 242 };
 243
 244 static int Lock(picture_t *picture)
 245 {
 246     vout_display_t *vd = picture->p_sys->vd;
 247     vout_display_sys_t *sys = vd->sys;
 248
 249     /* */
 250     if (sys->rect_dest_clipped.right  - sys->rect_dest_clipped.left != vd->fmt.i_width ||
 251         sys->rect_dest_clipped.bottom - sys->rect_dest_clipped.top  != vd->fmt.i_height)
 252         return VLC_EGENERIC;
 253
 254     /* */
 255     GXDisplayProperties gxdisplayprop = GXGetDisplayProperties();
 256     uint8_t *p_pic_buffer = GXBeginDraw();
 257     if (!p_pic_buffer) {
 258         msg_Err(vd, "GXBeginDraw error %d ", GetLastError());
 259         return VLC_EGENERIC;
 260     }
 261     p_pic_buffer += sys->rect_dest.top  * gxdisplayprop.cbyPitch +
 262                     sys->rect_dest.left * gxdisplayprop.cbxPitch;
 263
 264     /* */
 265     picture->p[0].i_pitch  = gxdisplayprop.cbyPitch;
 266     picture->p[0].p_pixels = p_pic_buffer;
 267
 268     return VLC_SUCCESS;
 269 }
 270 static void Unlock(picture_t *picture)
 271 {
 272     vout_display_t *vd = picture->p_sys->vd;
 273
 274     GXEndDraw();
 275 }
 276 #endif
 277
 278 static int Init(vout_display_t *vd,
 279                 video_format_t *fmt, int width, int height)
 280 {
 281     vout_display_sys_t *sys = vd->sys;
 282
 283     /* */
 284     RECT *display = &sys->rect_display;
 285     display->left   = 0;
 286     display->top    = 0;
 287 #ifdef MODULE_NAME_IS_wingapi
 288     display->right  = GXGetDisplayProperties().cxWidth;
 289     display->bottom = GXGetDisplayProperties().cyHeight;
 290 #else
 291     display->right  = GetSystemMetrics(SM_CXSCREEN);;
 292     display->bottom = GetSystemMetrics(SM_CYSCREEN);;
 293 #endif
 294
 295     /* Initialize an offscreen bitmap for direct buffer operations. */
 296
 297     /* */
 298     HDC window_dc = GetDC(sys->hvideownd);
 299
 300     /* */
 301 #ifdef MODULE_NAME_IS_wingapi
 302     GXDisplayProperties gx_displayprop = GXGetDisplayProperties();
 303     sys->i_depth = gx_displayprop.cBPP;
 304 #else
 305
 306     sys->i_depth = GetDeviceCaps(window_dc, PLANES) *
 307                    GetDeviceCaps(window_dc, BITSPIXEL);
 308 #endif
 309
 310     /* */
 311     msg_Dbg(vd, "GDI depth is %i", sys->i_depth);
 312     switch (sys->i_depth) {
 313     case 8:
 314         fmt->i_chroma = VLC_CODEC_RGB8;
 315         break;
 316     case 15:
 317         fmt->i_chroma = VLC_CODEC_RGB15;
 318         fmt->i_rmask  = 0x7c00;
 319         fmt->i_gmask  = 0x03e0;
 320         fmt->i_bmask  = 0x001f;
 321         break;
 322     case 16:
 323         fmt->i_chroma = VLC_CODEC_RGB16;
 324         fmt->i_rmask  = 0xf800;
 325         fmt->i_gmask  = 0x07e0;
 326         fmt->i_bmask  = 0x001f;
 327         break;
 328     case 24:
 329         fmt->i_chroma = VLC_CODEC_RGB24;
 330         fmt->i_rmask  = 0x00ff0000;
 331         fmt->i_gmask  = 0x0000ff00;
 332         fmt->i_bmask  = 0x000000ff;
 333         break;
 334     case 32:
 335         fmt->i_chroma = VLC_CODEC_RGB32;
 336         fmt->i_rmask  = 0x00ff0000;
 337         fmt->i_gmask  = 0x0000ff00;
 338         fmt->i_bmask  = 0x000000ff;
 339         break;
 340     default:
 341         msg_Err(vd, "screen depth %i not supported", sys->i_depth);
 342         return VLC_EGENERIC;
 343     }
 344     fmt->i_width  = width;
 345     fmt->i_height = height;
 346
 347     uint8_t *p_pic_buffer;
 348     int     i_pic_pitch;
 349 #ifdef MODULE_NAME_IS_wingapi
 350     GXOpenDisplay(sys->hvideownd, GX_FULLSCREEN);
 351     EventThreadUpdateTitle(sys->event, VOUT_TITLE " (WinGAPI output)");
 352
 353     /* Filled by pool::lock() */
 354     p_pic_buffer = NULL;
 355     i_pic_pitch  = 0;
 356 #else
 357     /* Initialize offscreen bitmap */
 358     BITMAPINFO *bi = &sys->bitmapinfo;
 359     memset(bi, 0, sizeof(BITMAPINFO) + 3 * sizeof(RGBQUAD));
 360     if (sys->i_depth > 8) {
 361         ((DWORD*)bi->bmiColors)[0] = fmt->i_rmask;
 362         ((DWORD*)bi->bmiColors)[1] = fmt->i_gmask;
 363         ((DWORD*)bi->bmiColors)[2] = fmt->i_bmask;;
 364     }
 365
 366     BITMAPINFOHEADER *bih = &sys->bitmapinfo.bmiHeader;
 367     bih->biSize = sizeof(BITMAPINFOHEADER);
 368     bih->biSizeImage     = 0;
 369     bih->biPlanes        = 1;
 370     bih->biCompression   = (sys->i_depth == 15 ||
 371                             sys->i_depth == 16) ? BI_BITFIELDS : BI_RGB;
 372     bih->biBitCount      = sys->i_depth;
 373     bih->biWidth         = fmt->i_width;
 374     bih->biHeight        = -fmt->i_height;
 375     bih->biClrImportant  = 0;
 376     bih->biClrUsed       = 0;
 377     bih->biXPelsPerMeter = 0;
 378     bih->biYPelsPerMeter = 0;
 379
 380     i_pic_pitch = bih->biBitCount * bih->biWidth / 8;
 381     sys->off_bitmap = CreateDIBSection(window_dc,
 382                                        (BITMAPINFO *)bih,
 383                                        DIB_RGB_COLORS,
 384                                        &p_pic_buffer, NULL, 0);
 385
 386     sys->off_dc = CreateCompatibleDC(window_dc);
 387
 388     SelectObject(sys->off_dc, sys->off_bitmap);
 389     ReleaseDC(sys->hvideownd, window_dc);
 390
 391     EventThreadUpdateTitle(sys->event, VOUT_TITLE " (WinGDI output)");
 392 #endif
 393
 394     /* */
 395     picture_resource_t rsc;
 396     memset(&rsc, 0, sizeof(rsc));
 397 #ifdef MODULE_NAME_IS_wingapi
 398     rsc.p_sys = malloc(sizeof(*rsc.p_sys));
 399     if (!rsc.p_sys)
 400         return VLC_EGENERIC;
 401     rsc.p_sys->vd = vd;
 402 #endif
 403     rsc.p[0].p_pixels = p_pic_buffer;
 404     rsc.p[0].i_lines  = fmt->i_height;
 405     rsc.p[0].i_pitch  = i_pic_pitch;;
 406
 407     picture_t *picture = picture_NewFromResource(fmt, &rsc);
 408     if (picture) {
 409         picture_pool_configuration_t cfg;
 410         memset(&cfg, 0, sizeof(cfg));
 411         cfg.picture_count = 1;
 412         cfg.picture = &picture;
 413 #ifdef MODULE_NAME_IS_wingapi
 414         cfg.lock    = Lock;
 415         cfg.unlock  = Unlock;
 416 #endif
 417         sys->pool = picture_pool_NewExtended(&cfg);
 418     } else {
 419         free(rsc.p_sys);
 420         sys->pool = NULL;
 421     }
 422
 423     UpdateRects(vd, NULL, NULL, true);
 424
 425     return VLC_SUCCESS;
 426 }
 427
 428 static void Clean(vout_display_t *vd)
 429 {
 430     vout_display_sys_t *sys = vd->sys;
 431
 432     if (sys->pool)
 433         picture_pool_Delete(sys->pool);
 434     sys->pool = NULL;
 435
 436 #ifdef MODULE_NAME_IS_wingapi
 437     GXCloseDisplay();
 438 #else
 439     if (sys->off_dc)
 440         DeleteDC(sys->off_dc);
 441     if (sys->off_bitmap)
 442         DeleteObject(sys->off_bitmap);
 443 #endif
 444 }
 445