libvo/vo_gl2.c

   1 /*
   2  * X11/OpenGL interface
   3  * based on video_out_x11 by Aaron Holtzman,
   4  * and WS opengl window manager by Pontscho/Fresh!
   5  *
   6  * This file is part of MPlayer.
   7  *
   8  * MPlayer is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * MPlayer is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include "config.h"
  28 #include "mp_msg.h"
  29 #include "subopt-helper.h"
  30 #include "video_out.h"
  31 #include "video_out_internal.h"
  32 #include "sub.h"
  33
  34 #include "gl_common.h"
  35 #include "aspect.h"
  36 #ifdef CONFIG_GUI
  37 #include "gui/interface.h"
  38 #endif
  39
  40 #undef TEXTUREFORMAT_ALWAYS
  41 #ifdef __APPLE__
  42 #define TEXTUREFORMAT_ALWAYS GL_RGBA8
  43 #endif
  44
  45 //! force texture height, useful for debugging
  46 #define TEXTURE_HEIGHT 128
  47 #undef TEXTURE_HEIGHT
  48 //! force texture width, useful for debugging
  49 #define TEXTURE_WIDTH 128
  50 #undef TEXTURE_WIDTH
  51
  52 static const vo_info_t info =
  53 {
  54   "X11 (OpenGL) - multiple textures version",
  55   "gl2",
  56   "Arpad Gereoffy & Sven Goethel",
  57   ""
  58 };
  59
  60 const LIBVO_EXTERN(gl2)
  61
  62 /* local data */
  63 static unsigned char *ImageData=NULL;
  64
  65 #ifdef GL_WIN32
  66     static int gl_vinfo = 0;
  67     static HGLRC gl_context = 0;
  68 #define update_xinerama_info w32_update_xinerama_info
  69 #define vo_init vo_w32_init
  70 #define vo_window vo_w32_window
  71 #else
  72     static XVisualInfo *gl_vinfo = NULL;
  73     static GLXContext gl_context = 0;
  74 #endif
  75
  76 static uint32_t image_width;
  77 static uint32_t image_height;
  78 static uint32_t image_format;
  79 static uint32_t image_bpp;
  80 static uint32_t image_bytes;
  81
  82 static int int_pause;
  83
  84 static uint32_t texture_width;
  85 static uint32_t texture_height;
  86 static int texnumx, texnumy, raw_line_len;
  87 static int texdirty;
  88 static struct TexSquare * texgrid = NULL;
  89 static GLuint   fragprog;
  90 static GLuint   lookupTex;
  91 static GLint    gl_internal_format;
  92 static int      rgb_sz, r_sz, g_sz, b_sz, a_sz;
  93 static GLenum   gl_bitmap_format;
  94 static GLenum   gl_bitmap_type;
  95 static int      isGL12 = GL_FALSE;
  96
  97 static int      gl_bilinear=1;
  98 static int      gl_antialias=0;
  99 static int      use_yuv;
 100 static int      use_glFinish;
 101
 102 static void (*draw_alpha_fnc)
 103                  (int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride);
 104
 105
 106 /* The squares that are tiled to make up the game screen polygon */
 107
 108 struct TexSquare
 109 {
 110   GLubyte *texture;
 111   GLuint texobj;
 112   GLuint uvtexobjs[2];
 113   GLfloat fx, fy, fw, fh;
 114 };
 115
 116 static GLint getInternalFormat(void)
 117 {
 118 #ifdef GL_WIN32
 119   PIXELFORMATDESCRIPTOR pfd;
 120   HDC vo_hdc = GetDC(vo_window);
 121   int pf = GetPixelFormat(vo_hdc);
 122   if (!DescribePixelFormat(vo_hdc, pf, sizeof pfd, &pfd)) {
 123     r_sz = g_sz = b_sz = a_sz = 0;
 124   } else {
 125     r_sz = pfd.cRedBits;
 126     g_sz = pfd.cGreenBits;
 127     b_sz = pfd.cBlueBits;
 128     a_sz = pfd.cAlphaBits;
 129   }
 130   ReleaseDC(vo_window, vo_hdc);
 131 #else
 132   if (glXGetConfig(mDisplay, gl_vinfo, GLX_RED_SIZE, &r_sz) != 0) r_sz = 0;
 133   if (glXGetConfig(mDisplay, gl_vinfo, GLX_GREEN_SIZE, &g_sz) != 0) g_sz = 0;
 134   if (glXGetConfig(mDisplay, gl_vinfo, GLX_BLUE_SIZE, &b_sz) != 0) b_sz = 0;
 135   if (glXGetConfig(mDisplay, gl_vinfo, GLX_ALPHA_SIZE, &a_sz) != 0) a_sz = 0;
 136 #endif
 137
 138   rgb_sz=r_sz+g_sz+b_sz;
 139   if(rgb_sz<=0) rgb_sz=24;
 140
 141 #ifdef TEXTUREFORMAT_ALWAYS
 142   return TEXTUREFORMAT_ALWAYS;
 143 #else
 144   if(r_sz==3 && g_sz==3 && b_sz==2 && a_sz==0)
 145     return GL_R3_G3_B2;
 146   if(r_sz==4 && g_sz==4 && b_sz==4 && a_sz==0)
 147     return GL_RGB4;
 148   if(r_sz==5 && g_sz==5 && b_sz==5 && a_sz==0)
 149     return GL_RGB5;
 150   if(r_sz==8 && g_sz==8 && b_sz==8 && a_sz==0)
 151     return GL_RGB8;
 152   if(r_sz==10 && g_sz==10 && b_sz==10 && a_sz==0)
 153     return GL_RGB10;
 154   if(r_sz==2 && g_sz==2 && b_sz==2 && a_sz==2)
 155     return GL_RGBA2;
 156   if(r_sz==4 && g_sz==4 && b_sz==4 && a_sz==4)
 157     return GL_RGBA4;
 158   if(r_sz==5 && g_sz==5 && b_sz==5 && a_sz==1)
 159     return GL_RGB5_A1;
 160   if(r_sz==8 && g_sz==8 && b_sz==8 && a_sz==8)
 161     return GL_RGBA8;
 162   if(r_sz==10 && g_sz==10 && b_sz==10 && a_sz==2)
 163     return GL_RGB10_A2;
 164 #endif
 165   return GL_RGB;
 166 }
 167
 168 static int initTextures(void)
 169 {
 170   struct TexSquare *tsq=0;
 171   GLfloat texpercx, texpercy;
 172   int s;
 173   int x=0, y=0;
 174   GLint format=0;
 175
 176   // textures smaller than 64x64 might not be supported
 177   s=64;
 178   while (s<image_width)
 179     s*=2;
 180   texture_width=s;
 181
 182   s=64;
 183   while (s<image_height)
 184     s*=2;
 185   texture_height=s;
 186
 187   if (image_format != IMGFMT_YV12)
 188   gl_internal_format = getInternalFormat();
 189
 190   /* Test the max texture size */
 191   do {
 192     glTexImage2D (GL_PROXY_TEXTURE_2D, 0,
 193                   gl_internal_format,
 194                   texture_width, texture_height,
 195                   0, gl_bitmap_format, gl_bitmap_type, NULL);
 196
 197     glGetTexLevelParameteriv
 198       (GL_PROXY_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &format);
 199
 200     if (format != gl_internal_format)
 201     {
 202       mp_msg (MSGT_VO, MSGL_V, "[gl2] Needed texture [%dx%d] too big, trying ",
 203               texture_height, texture_width);
 204
 205       if (texture_width > texture_height)
 206         texture_width /= 2;
 207       else
 208         texture_height /= 2;
 209
 210       mp_msg (MSGT_VO, MSGL_V, "[%dx%d] !\n", texture_height, texture_width);
 211
 212       if(texture_width < 64 || texture_height < 64) {
 213         mp_msg (MSGT_VO, MSGL_FATAL, "[gl2] Give up .. usable texture size not avaiable, or texture config error !\n");
 214         return -1;
 215       }
 216     }
 217   }
 218   while (format != gl_internal_format && texture_width > 1 && texture_height > 1);
 219 #ifdef TEXTURE_WIDTH
 220   texture_width = TEXTURE_WIDTH;
 221 #endif
 222 #ifdef TEXTURE_HEIGHT
 223   texture_height = TEXTURE_HEIGHT;
 224 #endif
 225
 226   texnumx = image_width / texture_width;
 227   if ((image_width % texture_width) > 0)
 228     texnumx++;
 229
 230   texnumy = image_height / texture_height;
 231   if ((image_height % texture_height) > 0)
 232     texnumy++;
 233
 234   mp_msg(MSGT_VO, MSGL_V, "[gl2] Creating %dx%d textures of size %dx%d ...\n",
 235          texnumx, texnumy, texture_width,texture_height);
 236
 237   /* Allocate the texture memory */
 238
 239   texpercx = (GLfloat) texture_width / (GLfloat) image_width;
 240   texpercy = (GLfloat) texture_height / (GLfloat) image_height;
 241
 242   if (texgrid)
 243     free(texgrid);
 244   texgrid = calloc (texnumx * texnumy, sizeof (struct TexSquare));
 245
 246   raw_line_len = image_width * image_bytes;
 247
 248   mp_msg (MSGT_VO, MSGL_DBG2, "[gl2] texture-usage %d*width=%d, %d*height=%d\n",
 249           (int) texnumx, (int) texture_width, (int) texnumy,
 250           (int) texture_height);
 251
 252   tsq = texgrid;
 253   for (y = 0; y < texnumy; y++) {
 254     for (x = 0; x < texnumx; x++) {
 255       tsq->fx = x * texpercx;
 256       tsq->fy = y * texpercy;
 257       tsq->fw = texpercx;
 258       tsq->fh = texpercy;
 259
 260       tsq->texobj=0;
 261       tsq->uvtexobjs[0] = tsq->uvtexobjs[1] = 0;
 262
 263       glGenTextures (1, &(tsq->texobj));
 264
 265       glBindTexture (GL_TEXTURE_2D, tsq->texobj);
 266       if (image_format == IMGFMT_YV12) {
 267         glGenTextures(2, tsq->uvtexobjs);
 268         ActiveTexture(GL_TEXTURE1);
 269         glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[0]);
 270         ActiveTexture(GL_TEXTURE2);
 271         glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[1]);
 272         ActiveTexture(GL_TEXTURE0);
 273       }
 274
 275       glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 276                        texture_width, texture_height, 0);
 277
 278       glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 279       if (image_format == IMGFMT_YV12) {
 280         ActiveTexture(GL_TEXTURE1);
 281         glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 282                          texture_width / 2, texture_height / 2, 128);
 283         ActiveTexture(GL_TEXTURE2);
 284         glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 285                          texture_width / 2, texture_height / 2, 128);
 286         ActiveTexture(GL_TEXTURE0);
 287       }
 288
 289       tsq++;
 290     }  /* for all texnumx */
 291   }  /* for all texnumy */
 292
 293   return 0;
 294 }
 295
 296 static void resetTexturePointers(unsigned char *imageSource)
 297 {
 298   unsigned char *texdata_start, *line_start;
 299   struct TexSquare *tsq = texgrid;
 300   int x=0, y=0;
 301
 302   line_start = (unsigned char *) imageSource;
 303
 304   for (y = 0; y < texnumy; y++) {
 305     texdata_start = line_start;
 306     for (x = 0; x < texnumx; x++) {
 307       tsq->texture = texdata_start;
 308       texdata_start += texture_width * image_bytes;
 309       tsq++;
 310     }  /* for all texnumx */
 311     line_start += texture_height * raw_line_len;
 312   }  /* for all texnumy */
 313 }
 314
 315 static void gl_set_bilinear (int val)
 316 {
 317   int x, y;
 318
 319   if(val>=0)
 320     gl_bilinear = val;
 321   else
 322     gl_bilinear++;
 323
 324   gl_bilinear=gl_bilinear%2;
 325   /* no mipmap yet .. */
 326
 327   for (y = 0; y < texnumy; y++) {
 328     for (x = 0; x < texnumx; x++) {
 329       glBindTexture (GL_TEXTURE_2D, texgrid[y * texnumx + x].texobj);
 330
 331       switch (gl_bilinear) {
 332         case 0:
 333           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 334           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 335           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear off\n");
 336           break;
 337         case 1:
 338           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 339           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 340           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear linear\n");
 341           break;
 342         case 2:
 343           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
 344           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
 345           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap nearest\n");
 346           break;
 347         case 3:
 348           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 349           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 350           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap linear\n");
 351           break;
 352       }
 353     }
 354   }
 355 }
 356
 357 static void gl_set_antialias (int val)
 358 {
 359   gl_antialias=val;
 360
 361   if (gl_antialias) {
 362     glShadeModel (GL_SMOOTH);
 363     glEnable (GL_POLYGON_SMOOTH);
 364     glEnable (GL_LINE_SMOOTH);
 365     glEnable (GL_POINT_SMOOTH);
 366     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing on\n");
 367   } else {
 368     glShadeModel (GL_FLAT);
 369     glDisable (GL_POLYGON_SMOOTH);
 370     glDisable (GL_LINE_SMOOTH);
 371     glDisable (GL_POINT_SMOOTH);
 372     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing off\n");
 373   }
 374 }
 375
 376
 377 static void drawTextureDisplay (void)
 378 {
 379   struct TexSquare *square = texgrid;
 380   int x, y;
 381
 382   glColor3f(1.0,1.0,1.0);
 383
 384   if (image_format == IMGFMT_YV12)
 385     glEnableYUVConversion(GL_TEXTURE_2D, use_yuv);
 386   for (y = 0; y < texnumy; y++) {
 387     int thish = texture_height;
 388     if (y == texnumy - 1 && image_height % texture_height)
 389       thish = image_height % texture_height;
 390     for (x = 0; x < texnumx; x++) {
 391       int thisw = texture_width;
 392       if (x == texnumx - 1 && image_width % texture_width)
 393         thisw = image_width % texture_width;
 394       glBindTexture (GL_TEXTURE_2D, square->texobj);
 395       if (image_format == IMGFMT_YV12) {
 396         ActiveTexture(GL_TEXTURE1);
 397         glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[0]);
 398         ActiveTexture(GL_TEXTURE2);
 399         glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[1]);
 400         ActiveTexture(GL_TEXTURE0);
 401       }
 402
 403       if (texdirty) {
 404         glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 405                     square->texture, image_width * image_bytes,
 406                     0, 0, thisw, thish, 0);
 407       }
 408
 409       glDrawTex(square->fx, square->fy, square->fw, square->fh,
 410                 0, 0, texture_width, texture_height,
 411                 texture_width, texture_height,
 412                 0, image_format == IMGFMT_YV12, 0);
 413       square++;
 414     } /* for all texnumx */
 415   } /* for all texnumy */
 416   if (image_format == IMGFMT_YV12)
 417     glDisableYUVConversion(GL_TEXTURE_2D, use_yuv);
 418   texdirty = 0;
 419 }
 420
 421
 422 static void resize(int *x,int *y){
 423   mp_msg(MSGT_VO,MSGL_V,"[gl2] Resize: %dx%d\n",*x,*y);
 424   if( vo_fs ) {
 425     glClear(GL_COLOR_BUFFER_BIT);
 426     aspect(x, y, A_ZOOM);
 427     panscan_calc();
 428     *x += vo_panscan_x;
 429     *y += vo_panscan_y;
 430     glViewport( (vo_screenwidth-*x)/2, (vo_screenheight-*y)/2, *x, *y);
 431   } else {
 432     //aspect(x, y, A_NOZOOM);
 433     if (WinID >= 0) {
 434       int top = 0, left = 0, w = *x, h = *y;
 435       geometry(&top, &left, &w, &h, vo_screenwidth, vo_screenheight);
 436       glViewport(top, left, w, h);
 437     } else
 438       glViewport( 0, 0, *x, *y );
 439   }
 440
 441   glMatrixMode(GL_PROJECTION);
 442   glLoadIdentity();
 443   glOrtho (0, 1, 1, 0, -1.0, 1.0);
 444
 445   glMatrixMode(GL_MODELVIEW);
 446   glLoadIdentity();
 447 }
 448
 449 static void draw_alpha_32(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 450    vo_draw_alpha_rgb32(w,h,src,srca,stride,ImageData+4*(y0*image_width+x0),4*image_width);
 451 }
 452
 453 static void draw_alpha_24(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 454    vo_draw_alpha_rgb24(w,h,src,srca,stride,ImageData+3*(y0*image_width+x0),3*image_width);
 455 }
 456
 457 static void draw_alpha_16(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 458    vo_draw_alpha_rgb16(w,h,src,srca,stride,ImageData+2*(y0*image_width+x0),2*image_width);
 459 }
 460
 461 static void draw_alpha_15(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 462    vo_draw_alpha_rgb15(w,h,src,srca,stride,ImageData+2*(y0*image_width+x0),2*image_width);
 463 }
 464
 465 static void draw_alpha_null(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 466 }
 467
 468 #ifdef GL_WIN32
 469
 470 static int config_w32(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format) {
 471   if (!vo_w32_config(d_width, d_height, flags))
 472     return -1;
 473
 474   if (vo_fs)
 475     aspect(&d_width, &d_height, A_ZOOM);
 476
 477   return 0;
 478 }
 479
 480 #else
 481
 482 static int choose_glx_visual(Display *dpy, int scr, XVisualInfo *res_vi)
 483 {
 484   XVisualInfo template, *vi_list;
 485   int vi_num, i, best_i, best_weight;
 486
 487   template.screen = scr;
 488   vi_list = XGetVisualInfo(dpy, VisualScreenMask, &template, &vi_num);
 489   if (!vi_list) return -1;
 490   best_weight = 1000000; best_i=0;
 491   for (i = 0; i < vi_num; i++) {
 492     int val, res, w = 0;
 493     /* of course, the visual must support OpenGL rendering... */
 494     res = glXGetConfig(dpy, vi_list + i, GLX_USE_GL, &val);
 495     if (res || val == False) continue;
 496     /* also it must be doublebuffered ... */
 497     res = glXGetConfig(dpy, vi_list + i, GLX_DOUBLEBUFFER, &val);
 498     if (res || val == False) continue;
 499     /* furthermore it must be RGBA (not color indexed) ... */
 500     res = glXGetConfig(dpy, vi_list + i, GLX_RGBA, &val);
 501     if (res || val == False) continue;
 502     /* prefer less depth buffer size, */
 503     res = glXGetConfig(dpy, vi_list + i, GLX_DEPTH_SIZE, &val);
 504     if (res) continue;
 505     w += val*2;
 506     /* stencil buffer size */
 507     res = glXGetConfig(dpy, vi_list + i, GLX_STENCIL_SIZE, &val);
 508     if (res) continue;
 509     w += val*2;
 510     /* and colorbuffer alpha size */
 511     res = glXGetConfig(dpy, vi_list + i, GLX_ALPHA_SIZE, &val);
 512     if (res) continue;
 513     w += val;
 514     /* and finally, prefer DirectColor-ed visuals to allow color corrections */
 515     if (vi_list[i].class != DirectColor) w += 100;
 516
 517     // avoid bad-looking visual with less that 8bit per color
 518     res = glXGetConfig(dpy, vi_list + i, GLX_RED_SIZE, &val);
 519     if (res) continue;
 520     if (val < 8) w += 50;
 521     res = glXGetConfig(dpy, vi_list + i, GLX_GREEN_SIZE, &val);
 522     if (res) continue;
 523     if (val < 8) w += 70;
 524     res = glXGetConfig(dpy, vi_list + i, GLX_BLUE_SIZE, &val);
 525     if (res) continue;
 526     if (val < 8) w += 50;
 527
 528     if (w < best_weight) {
 529       best_weight = w;
 530       best_i = i;
 531     }
 532   }
 533   if (best_weight < 1000000) *res_vi = vi_list[best_i];
 534   XFree(vi_list);
 535   return (best_weight < 1000000) ? 0 : -1;
 536 }
 537
 538 static int config_glx(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format) {
 539   XVisualInfo *vinfo, vinfo_buf;
 540     vinfo = choose_glx_visual(mDisplay,mScreen,&vinfo_buf) < 0 ? NULL : &vinfo_buf;
 541     if (vinfo == NULL) {
 542       mp_msg(MSGT_VO, MSGL_FATAL, "[gl2] no GLX support present\n");
 543       return -1;
 544     }
 545
 546   vo_x11_create_vo_window(vinfo, vo_dx, vo_dy, d_width, d_height,
 547           flags, vo_x11_create_colormap(vinfo), "gl2", title);
 548
 549   return 0;
 550 }
 551 #endif
 552
 553 #ifdef CONFIG_GUI
 554 static int config_glx_gui(uint32_t d_width, uint32_t d_height) {
 555   guiGetEvent( guiSetShVideo,0 ); // the GUI will set up / resize the window
 556   return 0;
 557 }
 558 #endif
 559
 560 static int initGl(uint32_t d_width, uint32_t d_height)
 561 {
 562   fragprog = lookupTex = 0;
 563   if (initTextures() < 0)
 564     return -1;
 565
 566   glDisable(GL_BLEND);
 567   glDisable(GL_DEPTH_TEST);
 568   glDepthMask(GL_FALSE);
 569   glDisable(GL_CULL_FACE);
 570   glEnable (GL_TEXTURE_2D);
 571   if (image_format == IMGFMT_YV12) {
 572     gl_conversion_params_t params = {GL_TEXTURE_2D, use_yuv,
 573           0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0,
 574           texture_width, texture_height};
 575     switch (use_yuv) {
 576       case YUV_CONVERSION_FRAGMENT_LOOKUP:
 577         glGenTextures(1, &lookupTex);
 578         ActiveTexture(GL_TEXTURE3);
 579         glBindTexture(GL_TEXTURE_2D, lookupTex);
 580         ActiveTexture(GL_TEXTURE0);
 581         glBindTexture(GL_TEXTURE_2D, 0);
 582       case YUV_CONVERSION_FRAGMENT_POW:
 583       case YUV_CONVERSION_FRAGMENT:
 584         if (!GenPrograms || !BindProgram) {
 585           mp_msg(MSGT_VO, MSGL_ERR, "[gl] fragment program functions missing!\n");
 586           break;
 587         }
 588         GenPrograms(1, &fragprog);
 589         BindProgram(GL_FRAGMENT_PROGRAM, fragprog);
 590         break;
 591     }
 592     glSetupYUVConversion(&params);
 593   }
 594
 595   gl_set_antialias(0);
 596   gl_set_bilinear(1);
 597
 598   mp_msg(MSGT_VO, MSGL_V, "[gl2] Using image_bpp=%d, image_bytes=%d, \n\tgl_bitmap_format=%s, gl_bitmap_type=%s, \n\trgb_size=%d (%d,%d,%d), a_sz=%d, \n\tgl_internal_format=%s\n",
 599         image_bpp, image_bytes,
 600         glValName(gl_bitmap_format), glValName(gl_bitmap_type),
 601         rgb_sz, r_sz, g_sz, b_sz, a_sz, glValName(gl_internal_format));
 602
 603   resize(&d_width, &d_height);
 604
 605   glClearColor( 0.0f,0.0f,0.0f,0.0f );
 606   glClear( GL_COLOR_BUFFER_BIT );
 607
 608   drawTextureDisplay ();
 609
 610   return 0;
 611 }
 612
 613 /* connect to server, create and map window,
 614  * allocate colors and (shared) memory
 615  */
 616 static int
 617 config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
 618 {
 619   const unsigned char * glVersion;
 620
 621   image_height = height;
 622   image_width = width;
 623   image_format = format;
 624
 625 #ifdef CONFIG_GUI
 626   if (use_gui) {
 627     if (config_glx_gui(d_width, d_height) == -1)
 628       return -1;
 629   }
 630 #ifndef GL_WIN32
 631   else
 632 #endif
 633 #endif
 634 #ifdef GL_WIN32
 635   if (config_w32(width, height, d_width, d_height, flags, title, format) == -1)
 636 #else
 637   if (config_glx(width, height, d_width, d_height, flags, title, format) == -1)
 638 #endif
 639     return -1;
 640
 641   setGlWindow(&gl_vinfo, &gl_context, vo_window);
 642
 643   glVersion = glGetString(GL_VERSION);
 644
 645   mp_msg(MSGT_VO, MSGL_V, "[gl2] OpenGL Driver Information:\n");
 646   mp_msg(MSGT_VO, MSGL_V, "\tvendor: %s,\n\trenderer %s,\n\tversion %s\n",
 647          glGetString(GL_VENDOR), glGetString(GL_RENDERER), glVersion);
 648
 649   if(glVersion[0]>'1' || (glVersion[0]=='1' && glVersion[2]>='2') )
 650     isGL12 = GL_TRUE;
 651   else
 652     isGL12 = GL_FALSE;
 653
 654   if(isGL12) {
 655     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL >= 1.2 capable drivers, GOOD (16bpp and BGR is ok!)\n");
 656   } else {
 657     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL < 1.2 drivers, BAD (16bpp and BGR may be damaged!)\n");
 658   }
 659
 660   glFindFormat(format, &image_bpp, &gl_internal_format, &gl_bitmap_format, &gl_bitmap_type);
 661
 662   image_bytes=(image_bpp+7)/8;
 663
 664   draw_alpha_fnc=draw_alpha_null;
 665
 666   switch(image_bpp) {
 667     case 15:
 668       draw_alpha_fnc=draw_alpha_15; break;
 669     case 16:
 670       draw_alpha_fnc=draw_alpha_16; break;
 671     case 24:
 672       draw_alpha_fnc=draw_alpha_24; break;
 673     case 32:
 674       draw_alpha_fnc=draw_alpha_32; break;
 675   }
 676
 677   if (initGl(vo_dwidth, vo_dheight) == -1)
 678     return -1;
 679
 680   return 0;
 681 }
 682
 683 #ifndef GL_WIN32
 684 static int gl_handlekey(int key)
 685 {
 686   if(key=='a'||key=='A') {
 687     gl_set_antialias(!gl_antialias);
 688     return 0;
 689   } else if(key=='b'||key=='B') {
 690     gl_set_bilinear(-1);
 691     return 0;
 692   }
 693   return 1;
 694 }
 695 #endif
 696
 697 static void check_events(void)
 698 {
 699   int e;
 700 #ifndef GL_WIN32
 701   XEvent         Event;
 702   char           buf[100];
 703   KeySym         keySym;
 704   int            key;
 705   static XComposeStatus stat;
 706
 707   while ( XPending( mDisplay ) ) {
 708     XNextEvent( mDisplay,&Event );
 709     if( Event.type == KeyPress ) {
 710       XLookupString( &Event.xkey,buf,sizeof(buf),&keySym,&stat );
 711       key = (keySym&0xff00) != 0 ? (keySym&0x00ff) + 256 : keySym;
 712       if(gl_handlekey(key))
 713         XPutBackEvent(mDisplay, &Event);
 714       break;
 715     } else {
 716       XPutBackEvent(mDisplay, &Event);
 717       break;
 718     }
 719   }
 720 #endif
 721   e=vo_check_events();
 722   if(e&VO_EVENT_RESIZE) resize(&vo_dwidth, &vo_dheight);
 723   if(e&VO_EVENT_EXPOSE && int_pause) flip_page();
 724 }
 725
 726 static void draw_osd(void)
 727 {
 728   if (ImageData)
 729     vo_draw_text(image_width,image_height,draw_alpha_fnc);
 730 }
 731
 732 static void
 733 flip_page(void)
 734 {
 735   drawTextureDisplay();
 736
 737 //  glFlush();
 738   if (use_glFinish)
 739   glFinish();
 740   swapGlBuffers();
 741
 742   if (vo_fs) // Avoid flickering borders in fullscreen mode
 743     glClear (GL_COLOR_BUFFER_BIT);
 744 }
 745
 746 static int draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
 747 {
 748   uint8_t *yptr = src[0], *uptr = src[1], *vptr = src[2];
 749   int ystride = stride[0], ustride = stride[1], vstride = stride[2];
 750   int rem_h = h;
 751   struct TexSquare *texline = &texgrid[y / texture_height * texnumx];
 752   int subtex_y = y % texture_width;
 753   while (rem_h > 0) {
 754     int rem_w = w;
 755     struct TexSquare *tsq = &texline[x / texture_width];
 756     int subtex_x = x % texture_height;
 757     int subtex_h = rem_h;
 758     if (subtex_y + subtex_h > texture_height)
 759       subtex_h = texture_height - subtex_y;
 760     while (rem_w > 0) {
 761       int subtex_w = rem_w;
 762       if (subtex_x + subtex_w > texture_width)
 763         subtex_w = texture_width - subtex_x;
 764       ActiveTexture(GL_TEXTURE0);
 765       glBindTexture(GL_TEXTURE_2D, tsq->texobj);
 766       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 767                   yptr, ystride, subtex_x, subtex_y,
 768                   subtex_w, subtex_h, 0);
 769       ActiveTexture(GL_TEXTURE1);
 770       glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[0]);
 771       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 772                   uptr, ustride, subtex_x / 2, subtex_y / 2,
 773                   subtex_w / 2, subtex_h / 2, 0);
 774       ActiveTexture(GL_TEXTURE2);
 775       glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[1]);
 776       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 777                   vptr, vstride, subtex_x / 2, subtex_y / 2,
 778                   subtex_w / 2, subtex_h / 2, 0);
 779       subtex_x = 0;
 780       yptr += subtex_w;
 781       uptr += subtex_w / 2;
 782       vptr += subtex_w / 2;
 783       tsq++;
 784       rem_w -= subtex_w;
 785     }
 786     subtex_y = 0;
 787     yptr += subtex_h * ystride - w;
 788     uptr += subtex_h / 2 * ustride - w / 2;
 789     vptr += subtex_h / 2 * vstride - w / 2;
 790     texline += texnumx;
 791     rem_h -= subtex_h;
 792   }
 793   ActiveTexture(GL_TEXTURE0);
 794     return 0;
 795 }
 796
 797 static int
 798 draw_frame(uint8_t *src[])
 799 {
 800   if (image_format == IMGFMT_YV12) {
 801     mp_msg(MSGT_VO, MSGL_ERR, "[gl2] error: draw_frame called for YV12!\n");
 802     return 0;
 803   }
 804   ImageData=(unsigned char *)src[0];
 805   resetTexturePointers(ImageData);
 806   texdirty = 1;
 807   return 0;
 808 }
 809
 810 static int
 811 query_format(uint32_t format)
 812 {
 813   switch(format) {
 814     case IMGFMT_YV12:
 815       if (use_yuv)
 816         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD |
 817                VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN | VFCAP_ACCEPT_STRIDE;
 818       break;
 819 #ifdef __APPLE__
 820     case IMGFMT_RGB32:
 821 #else
 822     case IMGFMT_RGB24:
 823     case IMGFMT_BGR24:
 824 //    case IMGFMT_RGB32:
 825 //    case IMGFMT_BGR32:
 826 #endif
 827         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD;
 828   }
 829   return 0;
 830 }
 831
 832
 833 static void
 834 uninit(void)
 835 {
 836   if ( !vo_config_count ) return;
 837   releaseGlContext(&gl_vinfo, &gl_context);
 838   if (texgrid) {
 839     free(texgrid);
 840     texgrid = NULL;
 841   }
 842   vo_uninit();
 843 }
 844
 845 static const opt_t subopts[] = {
 846   {"yuv",          OPT_ARG_INT,  &use_yuv,      (opt_test_f)int_non_neg},
 847   {"glfinish",     OPT_ARG_BOOL, &use_glFinish, NULL},
 848   {NULL}
 849 };
 850
 851 static int preinit(const char *arg)
 852 {
 853   // set defaults
 854   use_yuv = 0;
 855   use_glFinish = 1;
 856   if (subopt_parse(arg, subopts) != 0) {
 857     mp_msg(MSGT_VO, MSGL_FATAL,
 858             "\n-vo gl2 command line help:\n"
 859             "Example: mplayer -vo gl2:noglfinish\n"
 860             "\nOptions:\n"
 861             "  noglfinish\n"
 862             "    Do not call glFinish() before swapping buffers\n"
 863             "  yuv=<n>\n"
 864             "    0: use software YUV to RGB conversion.\n"
 865             "    1: use register combiners (nVidia only, for older cards).\n"
 866             "    2: use fragment program.\n"
 867             "    3: use fragment program with gamma correction.\n"
 868             "    4: use fragment program with gamma correction via lookup.\n"
 869             "    5: use ATI-specific method (for older cards).\n"
 870             "\n" );
 871     return -1;
 872   }
 873     if( !vo_init() ) return -1; // Can't open X11
 874     return 0;
 875 }
 876
 877 static int control(uint32_t request, void *data)
 878 {
 879   switch (request) {
 880     case VOCTRL_PAUSE:
 881     case VOCTRL_RESUME:
 882       int_pause = (request == VOCTRL_PAUSE);
 883       return VO_TRUE;
 884     case VOCTRL_QUERY_FORMAT:
 885       return query_format(*((uint32_t*)data));
 886     case VOCTRL_GUISUPPORT:
 887       return VO_TRUE;
 888     case VOCTRL_ONTOP:
 889       vo_gl_ontop();
 890       return VO_TRUE;
 891     case VOCTRL_FULLSCREEN:
 892       vo_fullscreen();
 893       if (setGlWindow(&gl_vinfo, &gl_context, vo_window) == SET_WINDOW_REINIT)
 894         initGl(vo_dwidth, vo_dheight);
 895       resize(&vo_dwidth, &vo_dheight);
 896       return VO_TRUE;
 897     case VOCTRL_BORDER:
 898       vo_gl_border();
 899       return VO_TRUE;
 900     case VOCTRL_GET_PANSCAN:
 901       return VO_TRUE;
 902     case VOCTRL_SET_PANSCAN:
 903       resize (&vo_dwidth, &vo_dheight);
 904       return VO_TRUE;
 905 #ifndef GL_WIN32
 906     case VOCTRL_SET_EQUALIZER:
 907     {
 908       struct voctrl_set_equalizer_args *args = data;
 909       return vo_x11_set_equalizer(args->name, args->value);
 910     }
 911     case VOCTRL_GET_EQUALIZER:
 912     {
 913       struct voctrl_get_equalizer_args *args = data;
 914       return vo_x11_get_equalizer(args->name, args->valueptr);
 915     }
 916 #endif
 917     case VOCTRL_UPDATE_SCREENINFO:
 918       update_xinerama_info();
 919       return VO_TRUE;
 920   }
 921   return VO_NOTIMPL;
 922 }