libvo/vo_gl.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4 #include <math.h>
   5
   6 #include "config.h"
   7 #include "mp_msg.h"
   8 #include "subopt-helper.h"
   9 #include "video_out.h"
  10 #include "video_out_internal.h"
  11 #include "font_load.h"
  12 #include "sub.h"
  13
  14 #include "gl_common.h"
  15 #include "aspect.h"
  16 #ifdef HAVE_NEW_GUI
  17 #include "Gui/interface.h"
  18 #endif
  19
  20 static vo_info_t info =
  21 {
  22         "X11 (OpenGL)",
  23         "gl",
  24         "Arpad Gereoffy <arpi@esp-team.scene.hu>",
  25         ""
  26 };
  27
  28 LIBVO_EXTERN(gl)
  29
  30 #ifdef GL_WIN32
  31 static int gl_vinfo = 0;
  32 static HGLRC gl_context = 0;
  33 #else
  34 static XVisualInfo *gl_vinfo = NULL;
  35 static GLXContext gl_context = 0;
  36 static int                  wsGLXAttrib[] = { GLX_RGBA,
  37                                        GLX_RED_SIZE,1,
  38                                        GLX_GREEN_SIZE,1,
  39                                        GLX_BLUE_SIZE,1,
  40                                        GLX_DOUBLEBUFFER,
  41                                        None };
  42 #endif
  43
  44 static int use_osd;
  45 static int scaled_osd;
  46 //! How many parts the OSD may consist of at most
  47 #define MAX_OSD_PARTS 20
  48 //! Textures for OSD
  49 static GLuint osdtex[MAX_OSD_PARTS];
  50 #ifndef FAST_OSD
  51 //! Alpha textures for OSD
  52 static GLuint osdatex[MAX_OSD_PARTS];
  53 #endif
  54 //! Display lists that draw the OSD parts
  55 static GLuint osdDispList[MAX_OSD_PARTS];
  56 //! How many parts the OSD currently consists of
  57 static int osdtexCnt;
  58 static int osd_color;
  59
  60 static int use_aspect;
  61 static int use_yuv;
  62 static int use_rectangle;
  63 static int err_shown;
  64 static uint32_t image_width;
  65 static uint32_t image_height;
  66 static uint32_t image_format;
  67 static int many_fmts;
  68 static int use_glFinish;
  69 static int swap_interval;
  70 static GLenum gl_target;
  71 static GLint gl_texfmt;
  72 static GLenum gl_format;
  73 static GLenum gl_type;
  74 static GLuint gl_buffer;
  75 static int gl_buffersize;
  76 static GLuint fragprog;
  77 static GLuint uvtexs[2];
  78 static GLuint lookupTex;
  79 static char *custom_prog;
  80 static char *custom_tex;
  81 static int custom_tlin;
  82
  83 static int int_pause;
  84 static int eq_bri = 0;
  85 static int eq_cont = 0;
  86 static int eq_sat = 0;
  87 static int eq_hue = 0;
  88 static int eq_rgamma = 0;
  89 static int eq_ggamma = 0;
  90 static int eq_bgamma = 0;
  91
  92 static int texture_width;
  93 static int texture_height;
  94 static int mpi_flipped;
  95
  96 static unsigned int slice_height = 1;
  97
  98 static void resize(int x,int y){
  99   mp_msg(MSGT_VO, MSGL_V, "[gl] Resize: %dx%d\n",x,y);
 100   if (WinID >= 0) {
 101     int top = 0, left = 0, w = x, h = y;
 102     geometry(&top, &left, &w, &h, vo_screenwidth, vo_screenheight);
 103     glViewport(top, left, w, h);
 104   } else
 105   glViewport( 0, 0, x, y );
 106
 107   glMatrixMode(GL_PROJECTION);
 108   glLoadIdentity();
 109   if (vo_fs && use_aspect) {
 110     int new_w, new_h;
 111     GLdouble scale_x, scale_y;
 112     aspect(&new_w, &new_h, A_ZOOM);
 113     panscan_calc();
 114     new_w += vo_panscan_x;
 115     new_h += vo_panscan_y;
 116     scale_x = (GLdouble) new_w / (GLdouble) x;
 117     scale_y = (GLdouble) new_h / (GLdouble) y;
 118     glScaled(scale_x, scale_y, 1);
 119   }
 120   glOrtho(0, image_width, image_height, 0, -1,1);
 121
 122   glMatrixMode(GL_MODELVIEW);
 123   glLoadIdentity();
 124
 125   if (!scaled_osd) {
 126 #ifdef HAVE_FREETYPE
 127   // adjust font size to display size
 128   force_load_font = 1;
 129 #endif
 130   vo_osd_changed(OSDTYPE_OSD);
 131   }
 132   if (vo_fs && use_aspect && !vo_doublebuffering)
 133     glClear(GL_COLOR_BUFFER_BIT);
 134 }
 135
 136 static void texSize(int w, int h, int *texw, int *texh) {
 137   if (use_rectangle) {
 138     *texw = w; *texh = h;
 139   } else {
 140     *texw = 32;
 141     while (*texw < w)
 142       *texw *= 2;
 143     *texh = 32;
 144     while (*texh < h)
 145       *texh *= 2;
 146   }
 147 }
 148
 149 //! maximum size of custom fragment program
 150 #define MAX_CUSTOM_PROG_SIZE (1024 * 1024)
 151 static void update_yuvconv(void) {
 152   float bri = eq_bri / 100.0;
 153   float cont = (eq_cont + 100) / 100.0;
 154   float hue = eq_hue / 100.0 * 3.1415927;
 155   float sat = (eq_sat + 100) / 100.0;
 156   float rgamma = exp(log(8.0) * eq_rgamma / 100.0);
 157   float ggamma = exp(log(8.0) * eq_ggamma / 100.0);
 158   float bgamma = exp(log(8.0) * eq_bgamma / 100.0);
 159   glSetupYUVConversion(gl_target, use_yuv, bri, cont, hue, sat,
 160                        rgamma, ggamma, bgamma);
 161   if (custom_prog) {
 162     FILE *f = fopen(custom_prog, "r");
 163     if (!f)
 164       mp_msg(MSGT_VO, MSGL_WARN,
 165              "[gl] Could not read customprog %s\n", custom_prog);
 166     else {
 167       int i;
 168       char *prog = calloc(1, MAX_CUSTOM_PROG_SIZE + 1);
 169       fread(prog, 1, MAX_CUSTOM_PROG_SIZE, f);
 170       fclose(f);
 171       ProgramString(GL_FRAGMENT_PROGRAM, GL_PROGRAM_FORMAT_ASCII,
 172                    strlen(prog), prog);
 173       glGetIntegerv(GL_PROGRAM_ERROR_POSITION, &i);
 174       if (i != -1)
 175         mp_msg(MSGT_VO, MSGL_ERR,
 176           "[gl] Error in custom program at pos %i (%.20s)\n", i, &prog[i]);
 177       free(prog);
 178     }
 179     ProgramEnvParameter4f(GL_FRAGMENT_PROGRAM, 0,
 180                1.0 / texture_width, 1.0 / texture_height, 0, 0);
 181   }
 182   if (custom_tex) {
 183     FILE *f = fopen(custom_tex, "r");
 184     if (!f)
 185       mp_msg(MSGT_VO, MSGL_WARN,
 186              "[gl] Could not read customtex %s\n", custom_tex);
 187     else {
 188       int width, height, maxval;
 189       ActiveTexture(GL_TEXTURE3);
 190       if (glCreatePPMTex(GL_TEXTURE_2D, 3,
 191                      custom_tlin?GL_LINEAR:GL_NEAREST,
 192                      f, &width, &height, &maxval))
 193         ProgramEnvParameter4f(GL_FRAGMENT_PROGRAM, 1,
 194                    1.0 / width, 1.0 / height, 1.0 / maxval, 0);
 195       else
 196         mp_msg(MSGT_VO, MSGL_WARN,
 197                "[gl] Error parsing customtex %s\n", custom_tex);
 198       fclose(f);
 199       ActiveTexture(GL_TEXTURE0);
 200     }
 201   }
 202 }
 203
 204 /**
 205  * \brief remove all OSD textures and display-lists, thus clearing it.
 206  */
 207 static void clearOSD(void) {
 208   int i;
 209   if (!osdtexCnt)
 210     return;
 211   glDeleteTextures(osdtexCnt, osdtex);
 212 #ifndef FAST_OSD
 213   glDeleteTextures(osdtexCnt, osdatex);
 214 #endif
 215   for (i = 0; i < osdtexCnt; i++)
 216     glDeleteLists(osdDispList[i], 1);
 217   osdtexCnt = 0;
 218 }
 219
 220 /**
 221  * \brief uninitialize OpenGL context, freeing textures, buffers etc.
 222  */
 223 static void uninitGl(void) {
 224   if (DeletePrograms && fragprog)
 225     DeletePrograms(1, &fragprog);
 226   fragprog = 0;
 227   if (uvtexs[0] || uvtexs[1])
 228     glDeleteTextures(2, uvtexs);
 229   uvtexs[0] = uvtexs[1] = 0;
 230   if (lookupTex)
 231     glDeleteTextures(1, &lookupTex);
 232   lookupTex = 0;
 233   clearOSD();
 234   if (DeleteBuffers && gl_buffer)
 235     DeleteBuffers(1, &gl_buffer);
 236   gl_buffer = 0; gl_buffersize = 0;
 237   err_shown = 0;
 238 }
 239
 240 /**
 241  * \brief Initialize a (new or reused) OpenGL context.
 242  * set global gl-related variables to their default values
 243  */
 244 static int initGl(uint32_t d_width, uint32_t d_height) {
 245   osdtexCnt = 0; gl_buffer = 0; gl_buffersize = 0; err_shown = 0;
 246   fragprog = 0; uvtexs[0] = 0; uvtexs[1] = 0; lookupTex = 0;
 247   texSize(image_width, image_height, &texture_width, &texture_height);
 248
 249   glDisable(GL_BLEND);
 250   glDisable(GL_DEPTH_TEST);
 251   glDepthMask(GL_FALSE);
 252   glDisable(GL_CULL_FACE);
 253   glEnable(gl_target);
 254   glDrawBuffer(vo_doublebuffering?GL_BACK:GL_FRONT);
 255   glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 256
 257   mp_msg(MSGT_VO, MSGL_V, "[gl] Creating %dx%d texture...\n",
 258           texture_width, texture_height);
 259
 260   if (image_format == IMGFMT_YV12) {
 261     glGenTextures(2, uvtexs);
 262     ActiveTexture(GL_TEXTURE1);
 263     BindTexture(gl_target, uvtexs[0]);
 264     glCreateClearTex(gl_target, gl_texfmt, GL_LINEAR,
 265                      texture_width / 2, texture_height / 2, 128);
 266     ActiveTexture(GL_TEXTURE2);
 267     BindTexture(gl_target, uvtexs[1]);
 268     glCreateClearTex(gl_target, gl_texfmt, GL_LINEAR,
 269                      texture_width / 2, texture_height / 2, 128);
 270     switch (use_yuv) {
 271       case YUV_CONVERSION_FRAGMENT_LOOKUP:
 272         glGenTextures(1, &lookupTex);
 273         ActiveTexture(GL_TEXTURE3);
 274         glBindTexture(GL_TEXTURE_2D, lookupTex);
 275       case YUV_CONVERSION_FRAGMENT_POW:
 276       case YUV_CONVERSION_FRAGMENT:
 277         GenPrograms(1, &fragprog);
 278         BindProgram(GL_FRAGMENT_PROGRAM, fragprog);
 279         break;
 280     }
 281     ActiveTexture(GL_TEXTURE0);
 282     BindTexture(gl_target, 0);
 283     update_yuvconv();
 284   }
 285   glCreateClearTex(gl_target, gl_texfmt, GL_LINEAR,
 286                    texture_width, texture_height, 0);
 287
 288   resize(d_width, d_height);
 289
 290   glClearColor( 0.0f,0.0f,0.0f,0.0f );
 291   glClear( GL_COLOR_BUFFER_BIT );
 292   if (SwapInterval && swap_interval >= 0)
 293     SwapInterval(swap_interval);
 294   return 1;
 295 }
 296
 297 /* connect to server, create and map window,
 298  * allocate colors and (shared) memory
 299  */
 300 static int
 301 config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
 302 {
 303         image_height = height;
 304         image_width = width;
 305         image_format = format;
 306         glFindFormat(format, NULL, &gl_texfmt, &gl_format, &gl_type);
 307
 308         int_pause = 0;
 309
 310         panscan_init();
 311         aspect_save_orig(width,height);
 312         aspect_save_prescale(d_width,d_height);
 313         update_xinerama_info();
 314
 315         aspect(&d_width,&d_height,A_NOZOOM);
 316         vo_dx = (int)(vo_screenwidth - d_width) / 2;
 317         vo_dy = (int)(vo_screenheight - d_height) / 2;
 318         geometry(&vo_dx, &vo_dy, &d_width, &d_height,
 319                   vo_screenwidth, vo_screenheight);
 320         vo_dx += xinerama_x;
 321         vo_dy += xinerama_y;
 322 #ifdef HAVE_NEW_GUI
 323   if (use_gui) {
 324     // GUI creates and manages window for us
 325     vo_dwidth = d_width;
 326     vo_dheight= d_height;
 327     guiGetEvent(guiSetShVideo, 0);
 328     goto glconfig;
 329   }
 330 #endif
 331 #ifdef GL_WIN32
 332   if (!vo_w32_config(d_width, d_height, flags))
 333     return -1;
 334 #else
 335   if (WinID >= 0) {
 336     vo_window = WinID ? (Window)WinID : mRootWin;
 337     vo_x11_selectinput_witherr(mDisplay, vo_window,
 338              StructureNotifyMask | KeyPressMask | PointerMotionMask |
 339              ButtonPressMask | ButtonReleaseMask | ExposureMask);
 340     goto glconfig;
 341   }
 342   if ( vo_window == None ) {
 343         unsigned int fg, bg;
 344         XSizeHints hint;
 345         XVisualInfo *vinfo;
 346         XEvent xev;
 347
 348         vo_fs = VO_FALSE;
 349
 350         hint.x = vo_dx;
 351         hint.y = vo_dy;
 352         hint.width = d_width;
 353         hint.height = d_height;
 354         hint.flags = PPosition | PSize;
 355
 356         /* Get some colors */
 357
 358         bg = WhitePixel(mDisplay, mScreen);
 359         fg = BlackPixel(mDisplay, mScreen);
 360
 361         /* Make the window */
 362
 363   vinfo=glXChooseVisual( mDisplay,mScreen,wsGLXAttrib );
 364   if (vinfo == NULL)
 365   {
 366     mp_msg(MSGT_VO, MSGL_ERR, "[gl] no GLX support present\n");
 367     return -1;
 368   }
 369
 370
 371
 372           vo_window = vo_x11_create_smooth_window(mDisplay, mRootWin, vinfo->visual, hint.x, hint.y, hint.width, hint.height,
 373                                                   vinfo->depth, XCreateColormap(mDisplay, mRootWin, vinfo->visual, AllocNone));
 374
 375       vo_x11_classhint( mDisplay,vo_window,"gl" );
 376       vo_hidecursor(mDisplay,vo_window);
 377
 378           XSelectInput(mDisplay, vo_window, StructureNotifyMask);
 379           /* Tell other applications about this window */
 380           XSetStandardProperties(mDisplay, vo_window, title, title, None, NULL, 0, &hint);
 381           /* Map window. */
 382           XMapWindow(mDisplay, vo_window);
 383
 384           /* Wait for map. */
 385           do
 386           {
 387                 XNextEvent(mDisplay, &xev);
 388           }
 389           while (xev.type != MapNotify || xev.xmap.event != vo_window);
 390
 391           XSelectInput(mDisplay, vo_window, NoEventMask);
 392
 393         XSync(mDisplay, False);
 394
 395         vo_x11_selectinput_witherr(mDisplay, vo_window, StructureNotifyMask | KeyPressMask | PointerMotionMask
 396                      | ButtonPressMask | ButtonReleaseMask | ExposureMask
 397         );
 398   }
 399       if (vo_ontop) vo_x11_setlayer(mDisplay, vo_window, vo_ontop);
 400
 401   vo_x11_nofs_sizepos(vo_dx, vo_dy, d_width, d_height);
 402   if (vo_fs ^ (flags & VOFLAG_FULLSCREEN))
 403     vo_x11_fullscreen();
 404 #endif
 405
 406 glconfig:
 407   if (vo_config_count)
 408     uninitGl();
 409   setGlWindow(&gl_vinfo, &gl_context, vo_window);
 410   initGl(vo_dwidth, vo_dheight);
 411
 412         return 0;
 413 }
 414
 415 static void check_events(void)
 416 {
 417     int e=vo_check_events();
 418     if(e&VO_EVENT_RESIZE) resize(vo_dwidth,vo_dheight);
 419     if(e&VO_EVENT_EXPOSE && int_pause) flip_page();
 420 }
 421
 422 /**
 423  * Creates the textures and the display list needed for displaying
 424  * an OSD part.
 425  * Callback function for vo_draw_text().
 426  */
 427 static void create_osd_texture(int x0, int y0, int w, int h,
 428                                  unsigned char *src, unsigned char *srca,
 429                                  int stride)
 430 {
 431   // initialize to 8 to avoid special-casing on alignment
 432   int sx = 8, sy = 8;
 433   GLint scale_type = (scaled_osd) ? GL_LINEAR : GL_NEAREST;
 434
 435   if (w <= 0 || h <= 0 || stride < w) {
 436     mp_msg(MSGT_VO, MSGL_V, "Invalid dimensions OSD for part!\n");
 437     return;
 438   }
 439   texSize(w, h, &sx, &sy);
 440
 441   if (osdtexCnt >= MAX_OSD_PARTS) {
 442     mp_msg(MSGT_VO, MSGL_ERR, "Too many OSD parts, contact the developers!\n");
 443     return;
 444   }
 445
 446   // create Textures for OSD part
 447   glGenTextures(1, &osdtex[osdtexCnt]);
 448   BindTexture(gl_target, osdtex[osdtexCnt]);
 449   glCreateClearTex(gl_target, GL_LUMINANCE, scale_type, sx, sy, 0);
 450   glUploadTex(gl_target, GL_LUMINANCE, GL_UNSIGNED_BYTE, src, stride,
 451               0, 0, w, h, 0);
 452
 453 #ifndef FAST_OSD
 454   glGenTextures(1, &osdatex[osdtexCnt]);
 455   BindTexture(gl_target, osdatex[osdtexCnt]);
 456   glCreateClearTex(gl_target, GL_ALPHA, scale_type, sx, sy, 255);
 457   {
 458   int i;
 459   char *tmp = (char *)malloc(stride * h);
 460   // convert alpha from weird MPlayer scale.
 461   // in-place is not possible since it is reused for future OSDs
 462   for (i = h * stride - 1; i > 0; i--)
 463     tmp[i] = srca[i] - 1;
 464   glUploadTex(gl_target, GL_ALPHA, GL_UNSIGNED_BYTE, tmp, stride,
 465               0, 0, w, h, 0);
 466   free(tmp);
 467   }
 468 #endif
 469
 470   BindTexture(gl_target, 0);
 471
 472   // Create a list for rendering this OSD part
 473   osdDispList[osdtexCnt] = glGenLists(1);
 474   glNewList(osdDispList[osdtexCnt], GL_COMPILE);
 475 #ifndef FAST_OSD
 476   // render alpha
 477   glBlendFunc(GL_ZERO, GL_SRC_ALPHA);
 478   BindTexture(gl_target, osdatex[osdtexCnt]);
 479   glDrawTex(x0, y0, w, h, 0, 0, w, h, sx, sy, use_rectangle == 1, 0, 0);
 480 #endif
 481   // render OSD
 482   glBlendFunc (GL_ONE, GL_ONE);
 483   BindTexture(gl_target, osdtex[osdtexCnt]);
 484   glDrawTex(x0, y0, w, h, 0, 0, w, h, sx, sy, use_rectangle == 1, 0, 0);
 485   glEndList();
 486
 487   osdtexCnt++;
 488 }
 489
 490 static void draw_osd(void)
 491 {
 492   if (!use_osd) return;
 493   if (vo_osd_changed(0)) {
 494     int osd_h, osd_w;
 495     clearOSD();
 496     osd_w = (scaled_osd) ? image_width : vo_dwidth;
 497     osd_h = (scaled_osd) ? image_height : vo_dheight;
 498     vo_draw_text(osd_w, osd_h, create_osd_texture);
 499   }
 500 }
 501
 502 static void
 503 flip_page(void)
 504 {
 505 //  glEnable(GL_TEXTURE_2D);
 506 //  glBindTexture(GL_TEXTURE_2D, texture_id);
 507
 508   glColor3f(1,1,1);
 509   if (image_format == IMGFMT_YV12)
 510     glEnableYUVConversion(gl_target, use_yuv);
 511   glDrawTex(0, 0, image_width, image_height,
 512             0, 0, image_width, image_height,
 513             texture_width, texture_height,
 514             use_rectangle == 1, image_format == IMGFMT_YV12, mpi_flipped);
 515   if (image_format == IMGFMT_YV12)
 516     glDisableYUVConversion(gl_target, use_yuv);
 517
 518   if (osdtexCnt > 0) {
 519     // set special rendering parameters
 520     if (!scaled_osd) {
 521     glMatrixMode(GL_PROJECTION);
 522     glPushMatrix();
 523     glLoadIdentity();
 524     glOrtho(0, vo_dwidth, vo_dheight, 0, -1, 1);
 525     }
 526     glEnable(GL_BLEND);
 527     glColor4ub((osd_color >> 16) & 0xff, (osd_color >> 8) & 0xff, osd_color & 0xff, 0xff);
 528     // draw OSD
 529     glCallLists(osdtexCnt, GL_UNSIGNED_INT, osdDispList);
 530     // set rendering parameters back to defaults
 531     glDisable (GL_BLEND);
 532     if (!scaled_osd)
 533     glPopMatrix();
 534     BindTexture(gl_target, 0);
 535   }
 536
 537   if (use_glFinish)
 538   glFinish();
 539   if (vo_doublebuffering)
 540     swapGlBuffers();
 541   else if (!use_glFinish)
 542     glFlush();
 543
 544   if (vo_fs && use_aspect && vo_doublebuffering)
 545     glClear(GL_COLOR_BUFFER_BIT);
 546 }
 547
 548 //static inline uint32_t draw_slice_x11(uint8_t *src[], uint32_t slice_num)
 549 static int draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
 550 {
 551   mpi_flipped = (stride[0] < 0);
 552   glUploadTex(gl_target, gl_format, gl_type, src[0], stride[0],
 553               x, y, w, h, slice_height);
 554   if (image_format == IMGFMT_YV12) {
 555     ActiveTexture(GL_TEXTURE1);
 556     glUploadTex(gl_target, gl_format, gl_type, src[1], stride[1],
 557                 x / 2, y / 2, w / 2, h / 2, slice_height);
 558     ActiveTexture(GL_TEXTURE2);
 559     glUploadTex(gl_target, gl_format, gl_type, src[2], stride[2],
 560                 x / 2, y / 2, w / 2, h / 2, slice_height);
 561     ActiveTexture(GL_TEXTURE0);
 562   }
 563         return 0;
 564 }
 565
 566 static uint32_t get_image(mp_image_t *mpi) {
 567   if (!GenBuffers || !BindBuffer || !BufferData || !MapBuffer) {
 568     if (!err_shown)
 569       mp_msg(MSGT_VO, MSGL_ERR, "[gl] extensions missing for dr\n"
 570                                 "Expect a _major_ speed penalty\n");
 571     err_shown = 1;
 572     return VO_FALSE;
 573   }
 574   if (mpi->flags & MP_IMGFLAG_READABLE) return VO_FALSE;
 575   if (mpi->type == MP_IMGTYPE_IP || mpi->type == MP_IMGTYPE_IPB)
 576     return VO_FALSE; // we can not provide readable buffers
 577   if (!gl_buffer)
 578     GenBuffers(1, &gl_buffer);
 579   BindBuffer(GL_PIXEL_UNPACK_BUFFER, gl_buffer);
 580   mpi->stride[0] = mpi->width * mpi->bpp / 8;
 581   if (mpi->stride[0] * mpi->h > gl_buffersize) {
 582     BufferData(GL_PIXEL_UNPACK_BUFFER, mpi->stride[0] * mpi->h,
 583                NULL, GL_DYNAMIC_DRAW);
 584     gl_buffersize = mpi->stride[0] * mpi->h;
 585   }
 586   UnmapBuffer(GL_PIXEL_UNPACK_BUFFER); // HACK, needed for some MPEG4 files??
 587   mpi->planes[0] = MapBuffer(GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY);
 588   BindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
 589   if (mpi->planes[0] == NULL) {
 590     if (!err_shown)
 591       mp_msg(MSGT_VO, MSGL_ERR, "[gl] could not aquire buffer for dr\n"
 592                                 "Expect a _major_ speed penalty\n");
 593     err_shown = 1;
 594     return VO_FALSE;
 595   }
 596   if (mpi->imgfmt == IMGFMT_YV12) {
 597     // YV12
 598     mpi->flags |= MP_IMGFLAG_COMMON_STRIDE | MP_IMGFLAG_COMMON_PLANE;
 599     mpi->stride[0] = mpi->width;
 600     mpi->planes[1] = mpi->planes[0] + mpi->stride[0] * mpi->height;
 601     mpi->stride[1] = mpi->width >> 1;
 602     mpi->planes[2] = mpi->planes[1] + mpi->stride[1] * (mpi->height >> 1);
 603     mpi->stride[2] = mpi->width >> 1;
 604   }
 605   mpi->flags |= MP_IMGFLAG_DIRECT;
 606   return VO_TRUE;
 607 }
 608
 609 static uint32_t draw_image(mp_image_t *mpi) {
 610   unsigned char *data = mpi->planes[0];
 611   int slice = slice_height;
 612   if (mpi->flags & MP_IMGFLAG_DRAW_CALLBACK)
 613     return VO_TRUE;
 614   if (mpi->flags & MP_IMGFLAG_DIRECT) {
 615     data = NULL;
 616     BindBuffer(GL_PIXEL_UNPACK_BUFFER, gl_buffer);
 617     UnmapBuffer(GL_PIXEL_UNPACK_BUFFER);
 618     slice = 0; // always "upload" full texture
 619   }
 620   mpi_flipped = (mpi->stride[0] < 0);
 621   glUploadTex(gl_target, gl_format, gl_type, data, mpi->stride[0],
 622               mpi->x, mpi->y, mpi->w, mpi->h, slice);
 623   if (mpi->imgfmt == IMGFMT_YV12) {
 624     data += mpi->planes[1] - mpi->planes[0];
 625     ActiveTexture(GL_TEXTURE1);
 626     glUploadTex(gl_target, gl_format, gl_type, data, mpi->stride[1],
 627                 mpi->x / 2, mpi->y / 2, mpi->w / 2, mpi->h / 2, slice);
 628     data += mpi->planes[2] - mpi->planes[1];
 629     ActiveTexture(GL_TEXTURE2);
 630     glUploadTex(gl_target, gl_format, gl_type, data, mpi->stride[2],
 631                 mpi->x / 2, mpi->y / 2, mpi->w / 2, mpi->h / 2, slice);
 632     ActiveTexture(GL_TEXTURE0);
 633   }
 634   if (mpi->flags & MP_IMGFLAG_DIRECT)
 635     BindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
 636   return VO_TRUE;
 637 }
 638
 639 static int
 640 draw_frame(uint8_t *src[])
 641 {
 642   return VO_ERROR;
 643 }
 644
 645 static int
 646 query_format(uint32_t format)
 647 {
 648     int caps = VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW |
 649                VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN | VFCAP_ACCEPT_STRIDE;
 650     if (use_osd)
 651       caps |= VFCAP_OSD;
 652     if ((format == IMGFMT_RGB24) || (format == IMGFMT_RGBA))
 653         return caps;
 654     if (use_yuv && format == IMGFMT_YV12)
 655         return caps;
 656     if (many_fmts &&
 657          glFindFormat(format, NULL, NULL, NULL, NULL))
 658         return caps;
 659     return 0;
 660 }
 661
 662
 663 static void
 664 uninit(void)
 665 {
 666   if ( !vo_config_count ) return;
 667   uninitGl();
 668   releaseGlContext(&gl_vinfo, &gl_context);
 669   if (custom_prog) free(custom_prog);
 670   custom_prog = NULL;
 671   if (custom_tex) free(custom_tex);
 672   custom_tex = NULL;
 673   vo_uninit();
 674 }
 675
 676 static opt_t subopts[] = {
 677   {"manyfmts",     OPT_ARG_BOOL, &many_fmts,    NULL},
 678   {"osd",          OPT_ARG_BOOL, &use_osd,      NULL},
 679   {"scaled-osd",   OPT_ARG_BOOL, &scaled_osd,   NULL},
 680   {"aspect",       OPT_ARG_BOOL, &use_aspect,   NULL},
 681   {"slice-height", OPT_ARG_INT,  &slice_height, (opt_test_f)int_non_neg},
 682   {"rectangle",    OPT_ARG_INT,  &use_rectangle,(opt_test_f)int_non_neg},
 683   {"yuv",          OPT_ARG_INT,  &use_yuv,      (opt_test_f)int_non_neg},
 684   {"glfinish",     OPT_ARG_BOOL, &use_glFinish, NULL},
 685   {"swapinterval", OPT_ARG_INT,  &swap_interval,NULL},
 686   {"customprog",   OPT_ARG_MSTRZ,&custom_prog,  NULL},
 687   {"customtex",    OPT_ARG_MSTRZ,&custom_tex,   NULL},
 688   {"customtlin",   OPT_ARG_BOOL, &custom_tlin,  NULL},
 689   {"osdcolor",     OPT_ARG_INT,  &osd_color,    NULL},
 690   {NULL}
 691 };
 692
 693 static int preinit(const char *arg)
 694 {
 695     // set defaults
 696     many_fmts = 1;
 697     use_osd = 1;
 698     scaled_osd = 0;
 699     use_aspect = 1;
 700     use_yuv = 0;
 701     use_rectangle = 0;
 702     use_glFinish = 0;
 703     swap_interval = 1;
 704     slice_height = -1;
 705     custom_prog = NULL;
 706     custom_tex = NULL;
 707     custom_tlin = 1;
 708     osd_color = 0xffffff;
 709     if (subopt_parse(arg, subopts) != 0) {
 710       mp_msg(MSGT_VO, MSGL_FATAL,
 711               "\n-vo gl command line help:\n"
 712               "Example: mplayer -vo gl:slice-height=4\n"
 713               "\nOptions:\n"
 714               "  manyfmts\n"
 715               "    Enable extended color formats for OpenGL 1.2 and later\n"
 716               "  slice-height=<0-...>\n"
 717               "    Slice size for texture transfer, 0 for whole image\n"
 718               "  noosd\n"
 719               "    Do not use OpenGL OSD code\n"
 720               "  noaspect\n"
 721               "    Do not do aspect scaling\n"
 722               "  rectangle=<0,1,2>\n"
 723               "    0: use power-of-two textures\n"
 724               "    1: use texture_rectangle\n"
 725               "    2: use texture_non_power_of_two\n"
 726               "  glfinish\n"
 727               "    Call glFinish() before swapping buffers\n"
 728               "  swapinterval=<n>\n"
 729               "    Interval in displayed frames between to buffer swaps.\n"
 730               "    1 is equivalent to enable VSYNC, 0 to disable VSYNC.\n"
 731               "    Requires GLX_SGI_swap_control support to work.\n"
 732               "  yuv=<n>\n"
 733               "    0: use software YUV to RGB conversion.\n"
 734               "    1: use register combiners (nVidia only, for older cards).\n"
 735               "    2: use fragment program.\n"
 736               "    3: use fragment program with gamma correction.\n"
 737               "    4: use fragment program with gamma correction via lookup.\n"
 738               "    5: use ATI-specific method (for older cards).\n"
 739               "  customprog=<filename>\n"
 740               "    use a custom YUV conversion program\n"
 741               "  customtex=<filename>\n"
 742               "    use a custom YUV conversion lookup texture\n"
 743               "  nocustomtlin\n"
 744               "    use GL_NEAREST scaling for customtex texture\n"
 745               "  osdcolor=<0xRRGGBB>\n"
 746               "    use the given color for the OSD\n"
 747               "\n" );
 748       return -1;
 749     }
 750     if (use_rectangle == 1)
 751       gl_target = GL_TEXTURE_RECTANGLE;
 752     else
 753       gl_target = GL_TEXTURE_2D;
 754     if (slice_height == -1)
 755       slice_height = use_yuv ? 16 : 4;
 756     if (many_fmts)
 757       mp_msg (MSGT_VO, MSGL_INFO, "[gl] using extended formats. "
 758                "Use -vo gl:nomanyfmts if playback fails.\n");
 759     mp_msg (MSGT_VO, MSGL_V, "[gl] Using %d as slice height "
 760              "(0 means image height).\n", slice_height);
 761     if( !vo_init() ) return -1; // Can't open X11
 762
 763     return 0;
 764 }
 765
 766 static int control(uint32_t request, void *data, ...)
 767 {
 768   switch (request) {
 769   case VOCTRL_PAUSE: return (int_pause=1);
 770   case VOCTRL_RESUME: return (int_pause=0);
 771   case VOCTRL_QUERY_FORMAT:
 772     return query_format(*((uint32_t*)data));
 773   case VOCTRL_GET_IMAGE:
 774     return get_image(data);
 775   case VOCTRL_DRAW_IMAGE:
 776     return draw_image(data);
 777   case VOCTRL_GUISUPPORT:
 778     return VO_TRUE;
 779   case VOCTRL_ONTOP:
 780     vo_ontop();
 781     return VO_TRUE;
 782   case VOCTRL_FULLSCREEN:
 783     vo_fullscreen();
 784     resize(vo_dwidth, vo_dheight);
 785     return VO_TRUE;
 786 #ifdef GL_WIN32
 787   case VOCTRL_BORDER:
 788     vo_w32_border();
 789     return VO_TRUE;
 790 #endif
 791   case VOCTRL_GET_PANSCAN:
 792     if (!use_aspect) return VO_NOTIMPL;
 793     return VO_TRUE;
 794   case VOCTRL_SET_PANSCAN:
 795     if (!use_aspect) return VO_NOTIMPL;
 796     resize (vo_dwidth, vo_dheight);
 797     return VO_TRUE;
 798   case VOCTRL_GET_EQUALIZER:
 799     if (image_format == IMGFMT_YV12) {
 800       va_list va;
 801       int *value;
 802       va_start(va, data);
 803       value = va_arg(va, int *);
 804       va_end(va);
 805       if (strcasecmp(data, "brightness") == 0) {
 806         *value = eq_bri;
 807         if (use_yuv == YUV_CONVERSION_COMBINERS) break; // not supported
 808       } else if (strcasecmp(data, "contrast") == 0) {
 809         *value = eq_cont;
 810         if (use_yuv == YUV_CONVERSION_COMBINERS) break; // not supported
 811       } else if (strcasecmp(data, "saturation") == 0) {
 812         *value = eq_sat;
 813       } else if (strcasecmp(data, "hue") == 0) {
 814         *value = eq_hue;
 815       } else if (strcasecmp(data, "gamma") ==  0) {
 816         *value = eq_rgamma;
 817         if (use_yuv == YUV_CONVERSION_COMBINERS ||
 818             use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
 819       } else if (strcasecmp(data, "red_gamma") ==  0) {
 820         *value = eq_rgamma;
 821         if (use_yuv == YUV_CONVERSION_COMBINERS ||
 822             use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
 823       } else if (strcasecmp(data, "green_gamma") ==  0) {
 824         *value = eq_ggamma;
 825         if (use_yuv == YUV_CONVERSION_COMBINERS ||
 826             use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
 827       } else if (strcasecmp(data, "blue_gamma") ==  0) {
 828         *value = eq_bgamma;
 829         if (use_yuv == YUV_CONVERSION_COMBINERS ||
 830             use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
 831       }
 832       return VO_TRUE;
 833     }
 834     break;
 835   case VOCTRL_SET_EQUALIZER:
 836     if (image_format == IMGFMT_YV12) {
 837       va_list va;
 838       int value;
 839       va_start(va, data);
 840       value = va_arg(va, int);
 841       va_end(va);
 842       if (strcasecmp(data, "brightness") == 0) {
 843         eq_bri = value;
 844         if (use_yuv == YUV_CONVERSION_COMBINERS) break; // not supported
 845       } else if (strcasecmp(data, "contrast") == 0) {
 846         eq_cont = value;
 847         if (use_yuv == YUV_CONVERSION_COMBINERS) break; // not supported
 848       } else if (strcasecmp(data, "saturation") == 0) {
 849         eq_sat = value;
 850       } else if (strcasecmp(data, "hue") == 0) {
 851         eq_hue = value;
 852       } else if (strcasecmp(data, "gamma") ==  0) {
 853         eq_rgamma = eq_ggamma = eq_bgamma = value;
 854         if (use_yuv == YUV_CONVERSION_COMBINERS ||
 855             use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
 856       } else if (strcasecmp(data, "red_gamma") ==  0) {
 857         eq_rgamma = value;
 858         if (use_yuv == YUV_CONVERSION_COMBINERS ||
 859             use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
 860       } else if (strcasecmp(data, "green_gamma") ==  0) {
 861         eq_ggamma = value;
 862         if (use_yuv == YUV_CONVERSION_COMBINERS ||
 863             use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
 864       } else if (strcasecmp(data, "blue_gamma") ==  0) {
 865         eq_bgamma = value;
 866         if (use_yuv == YUV_CONVERSION_COMBINERS ||
 867             use_yuv == YUV_CONVERSION_FRAGMENT) break; // not supported
 868       }
 869       update_yuvconv();
 870       return VO_TRUE;
 871     }
 872     break;
 873   }
 874   return VO_NOTIMPL;
 875 }