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
  37 #undef TEXTUREFORMAT_ALWAYS
  38 #ifdef __APPLE__
  39 #define TEXTUREFORMAT_ALWAYS GL_RGBA8
  40 #endif
  41
  42 //! force texture height, useful for debugging
  43 #define TEXTURE_HEIGHT 128
  44 #undef TEXTURE_HEIGHT
  45 //! force texture width, useful for debugging
  46 #define TEXTURE_WIDTH 128
  47 #undef TEXTURE_WIDTH
  48
  49 static const vo_info_t info =
  50 {
  51   "X11 (OpenGL) - multiple textures version",
  52   "gl2",
  53   "Arpad Gereoffy & Sven Goethel",
  54   ""
  55 };
  56
  57 const LIBVO_EXTERN(gl2)
  58
  59 /* local data */
  60 static unsigned char *ImageData=NULL;
  61
  62 #ifdef GL_WIN32
  63     static int gl_vinfo = 0;
  64     static HGLRC gl_context = 0;
  65 #define update_xinerama_info w32_update_xinerama_info
  66 #define vo_init vo_w32_init
  67 #define vo_window vo_w32_window
  68 #else
  69     static XVisualInfo *gl_vinfo = NULL;
  70     static GLXContext gl_context = 0;
  71 #endif
  72
  73 static uint32_t image_width;
  74 static uint32_t image_height;
  75 static uint32_t image_format;
  76 static uint32_t image_bpp;
  77 static uint32_t image_bytes;
  78
  79 static int int_pause;
  80
  81 static uint32_t texture_width;
  82 static uint32_t texture_height;
  83 static int texnumx, texnumy, raw_line_len;
  84 static int texdirty;
  85 static struct TexSquare * texgrid = NULL;
  86 static GLuint   fragprog;
  87 static GLuint   lookupTex;
  88 static GLint    gl_internal_format;
  89 static int      rgb_sz, r_sz, g_sz, b_sz, a_sz;
  90 static GLenum   gl_bitmap_format;
  91 static GLenum   gl_bitmap_type;
  92 static int      isGL12 = GL_FALSE;
  93
  94 static int      gl_bilinear=1;
  95 static int      gl_antialias=0;
  96 static int      use_yuv;
  97 static int      use_glFinish;
  98
  99 static void (*draw_alpha_fnc)
 100                  (int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride);
 101
 102
 103 /* The squares that are tiled to make up the game screen polygon */
 104
 105 struct TexSquare
 106 {
 107   GLubyte *texture;
 108   GLuint texobj;
 109   GLuint uvtexobjs[2];
 110   GLfloat fx, fy, fw, fh;
 111 };
 112
 113 static GLint getInternalFormat(void)
 114 {
 115 #ifdef GL_WIN32
 116   PIXELFORMATDESCRIPTOR pfd;
 117   HDC vo_hdc = vo_w32_get_dc(vo_w32_window);
 118   int pf = GetPixelFormat(vo_hdc);
 119   if (!DescribePixelFormat(vo_hdc, pf, sizeof pfd, &pfd)) {
 120     r_sz = g_sz = b_sz = a_sz = 0;
 121   } else {
 122     r_sz = pfd.cRedBits;
 123     g_sz = pfd.cGreenBits;
 124     b_sz = pfd.cBlueBits;
 125     a_sz = pfd.cAlphaBits;
 126   }
 127   vo_w32_release_dc(vo_w32_window, vo_hdc);
 128 #else
 129   if (glXGetConfig(mDisplay, gl_vinfo, GLX_RED_SIZE, &r_sz) != 0) r_sz = 0;
 130   if (glXGetConfig(mDisplay, gl_vinfo, GLX_GREEN_SIZE, &g_sz) != 0) g_sz = 0;
 131   if (glXGetConfig(mDisplay, gl_vinfo, GLX_BLUE_SIZE, &b_sz) != 0) b_sz = 0;
 132   if (glXGetConfig(mDisplay, gl_vinfo, GLX_ALPHA_SIZE, &a_sz) != 0) a_sz = 0;
 133 #endif
 134
 135   rgb_sz=r_sz+g_sz+b_sz;
 136   if(rgb_sz<=0) rgb_sz=24;
 137
 138 #ifdef TEXTUREFORMAT_ALWAYS
 139   return TEXTUREFORMAT_ALWAYS;
 140 #else
 141   if(r_sz==3 && g_sz==3 && b_sz==2 && a_sz==0)
 142     return GL_R3_G3_B2;
 143   if(r_sz==4 && g_sz==4 && b_sz==4 && a_sz==0)
 144     return GL_RGB4;
 145   if(r_sz==5 && g_sz==5 && b_sz==5 && a_sz==0)
 146     return GL_RGB5;
 147   if(r_sz==8 && g_sz==8 && b_sz==8 && a_sz==0)
 148     return GL_RGB8;
 149   if(r_sz==10 && g_sz==10 && b_sz==10 && a_sz==0)
 150     return GL_RGB10;
 151   if(r_sz==2 && g_sz==2 && b_sz==2 && a_sz==2)
 152     return GL_RGBA2;
 153   if(r_sz==4 && g_sz==4 && b_sz==4 && a_sz==4)
 154     return GL_RGBA4;
 155   if(r_sz==5 && g_sz==5 && b_sz==5 && a_sz==1)
 156     return GL_RGB5_A1;
 157   if(r_sz==8 && g_sz==8 && b_sz==8 && a_sz==8)
 158     return GL_RGBA8;
 159   if(r_sz==10 && g_sz==10 && b_sz==10 && a_sz==2)
 160     return GL_RGB10_A2;
 161 #endif
 162   return GL_RGB;
 163 }
 164
 165 static int initTextures(void)
 166 {
 167   struct TexSquare *tsq=0;
 168   GLfloat texpercx, texpercy;
 169   int s;
 170   int x=0, y=0;
 171   GLint format=0;
 172
 173   // textures smaller than 64x64 might not be supported
 174   s=64;
 175   while (s<image_width)
 176     s*=2;
 177   texture_width=s;
 178
 179   s=64;
 180   while (s<image_height)
 181     s*=2;
 182   texture_height=s;
 183
 184   if (image_format != IMGFMT_YV12)
 185   gl_internal_format = getInternalFormat();
 186
 187   /* Test the max texture size */
 188   do {
 189     glTexImage2D (GL_PROXY_TEXTURE_2D, 0,
 190                   gl_internal_format,
 191                   texture_width, texture_height,
 192                   0, gl_bitmap_format, gl_bitmap_type, NULL);
 193
 194     glGetTexLevelParameteriv
 195       (GL_PROXY_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &format);
 196
 197     if (format != gl_internal_format)
 198     {
 199       mp_msg (MSGT_VO, MSGL_V, "[gl2] Needed texture [%dx%d] too big, trying ",
 200               texture_height, texture_width);
 201
 202       if (texture_width > texture_height)
 203         texture_width /= 2;
 204       else
 205         texture_height /= 2;
 206
 207       mp_msg (MSGT_VO, MSGL_V, "[%dx%d] !\n", texture_height, texture_width);
 208
 209       if(texture_width < 64 || texture_height < 64) {
 210         mp_msg (MSGT_VO, MSGL_FATAL, "[gl2] Give up .. usable texture size not avaiable, or texture config error !\n");
 211         return -1;
 212       }
 213     }
 214   }
 215   while (format != gl_internal_format && texture_width > 1 && texture_height > 1);
 216 #ifdef TEXTURE_WIDTH
 217   texture_width = TEXTURE_WIDTH;
 218 #endif
 219 #ifdef TEXTURE_HEIGHT
 220   texture_height = TEXTURE_HEIGHT;
 221 #endif
 222
 223   texnumx = image_width / texture_width;
 224   if ((image_width % texture_width) > 0)
 225     texnumx++;
 226
 227   texnumy = image_height / texture_height;
 228   if ((image_height % texture_height) > 0)
 229     texnumy++;
 230
 231   mp_msg(MSGT_VO, MSGL_V, "[gl2] Creating %dx%d textures of size %dx%d ...\n",
 232          texnumx, texnumy, texture_width,texture_height);
 233
 234   /* Allocate the texture memory */
 235
 236   texpercx = (GLfloat) texture_width / (GLfloat) image_width;
 237   texpercy = (GLfloat) texture_height / (GLfloat) image_height;
 238
 239   if (texgrid)
 240     free(texgrid);
 241   texgrid = calloc (texnumx * texnumy, sizeof (struct TexSquare));
 242
 243   raw_line_len = image_width * image_bytes;
 244
 245   mp_msg (MSGT_VO, MSGL_DBG2, "[gl2] texture-usage %d*width=%d, %d*height=%d\n",
 246           (int) texnumx, (int) texture_width, (int) texnumy,
 247           (int) texture_height);
 248
 249   tsq = texgrid;
 250   for (y = 0; y < texnumy; y++) {
 251     for (x = 0; x < texnumx; x++) {
 252       tsq->fx = x * texpercx;
 253       tsq->fy = y * texpercy;
 254       tsq->fw = texpercx;
 255       tsq->fh = texpercy;
 256
 257       tsq->texobj=0;
 258       tsq->uvtexobjs[0] = tsq->uvtexobjs[1] = 0;
 259
 260       glGenTextures (1, &(tsq->texobj));
 261
 262       glBindTexture (GL_TEXTURE_2D, tsq->texobj);
 263       if (image_format == IMGFMT_YV12) {
 264         glGenTextures(2, tsq->uvtexobjs);
 265         ActiveTexture(GL_TEXTURE1);
 266         glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[0]);
 267         ActiveTexture(GL_TEXTURE2);
 268         glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[1]);
 269         ActiveTexture(GL_TEXTURE0);
 270       }
 271
 272       glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 273                        texture_width, texture_height, 0);
 274
 275       glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 276       if (image_format == IMGFMT_YV12) {
 277         ActiveTexture(GL_TEXTURE1);
 278         glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 279                          texture_width / 2, texture_height / 2, 128);
 280         ActiveTexture(GL_TEXTURE2);
 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_TEXTURE0);
 284       }
 285
 286       tsq++;
 287     }  /* for all texnumx */
 288   }  /* for all texnumy */
 289
 290   return 0;
 291 }
 292
 293 static void resetTexturePointers(unsigned char *imageSource)
 294 {
 295   unsigned char *texdata_start, *line_start;
 296   struct TexSquare *tsq = texgrid;
 297   int x=0, y=0;
 298
 299   line_start = (unsigned char *) imageSource;
 300
 301   for (y = 0; y < texnumy; y++) {
 302     texdata_start = line_start;
 303     for (x = 0; x < texnumx; x++) {
 304       tsq->texture = texdata_start;
 305       texdata_start += texture_width * image_bytes;
 306       tsq++;
 307     }  /* for all texnumx */
 308     line_start += texture_height * raw_line_len;
 309   }  /* for all texnumy */
 310 }
 311
 312 static void gl_set_bilinear (int val)
 313 {
 314   int x, y;
 315
 316   if(val>=0)
 317     gl_bilinear = val;
 318   else
 319     gl_bilinear++;
 320
 321   gl_bilinear=gl_bilinear%2;
 322   /* no mipmap yet .. */
 323
 324   for (y = 0; y < texnumy; y++) {
 325     for (x = 0; x < texnumx; x++) {
 326       glBindTexture (GL_TEXTURE_2D, texgrid[y * texnumx + x].texobj);
 327
 328       switch (gl_bilinear) {
 329         case 0:
 330           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 331           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 332           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear off\n");
 333           break;
 334         case 1:
 335           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 336           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 337           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear linear\n");
 338           break;
 339         case 2:
 340           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
 341           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
 342           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap nearest\n");
 343           break;
 344         case 3:
 345           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 346           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 347           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap linear\n");
 348           break;
 349       }
 350     }
 351   }
 352 }
 353
 354 static void gl_set_antialias (int val)
 355 {
 356   gl_antialias=val;
 357
 358   if (gl_antialias) {
 359     glShadeModel (GL_SMOOTH);
 360     glEnable (GL_POLYGON_SMOOTH);
 361     glEnable (GL_LINE_SMOOTH);
 362     glEnable (GL_POINT_SMOOTH);
 363     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing on\n");
 364   } else {
 365     glShadeModel (GL_FLAT);
 366     glDisable (GL_POLYGON_SMOOTH);
 367     glDisable (GL_LINE_SMOOTH);
 368     glDisable (GL_POINT_SMOOTH);
 369     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing off\n");
 370   }
 371 }
 372
 373
 374 static void drawTextureDisplay (void)
 375 {
 376   struct TexSquare *square = texgrid;
 377   int x, y;
 378
 379   glColor3f(1.0,1.0,1.0);
 380
 381   if (image_format == IMGFMT_YV12)
 382     glEnableYUVConversion(GL_TEXTURE_2D, use_yuv);
 383   for (y = 0; y < texnumy; y++) {
 384     int thish = texture_height;
 385     if (y == texnumy - 1 && image_height % texture_height)
 386       thish = image_height % texture_height;
 387     for (x = 0; x < texnumx; x++) {
 388       int thisw = texture_width;
 389       if (x == texnumx - 1 && image_width % texture_width)
 390         thisw = image_width % texture_width;
 391       glBindTexture (GL_TEXTURE_2D, square->texobj);
 392       if (image_format == IMGFMT_YV12) {
 393         ActiveTexture(GL_TEXTURE1);
 394         glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[0]);
 395         ActiveTexture(GL_TEXTURE2);
 396         glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[1]);
 397         ActiveTexture(GL_TEXTURE0);
 398       }
 399
 400       if (texdirty) {
 401         glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 402                     square->texture, image_width * image_bytes,
 403                     0, 0, thisw, thish, 0);
 404       }
 405
 406       glDrawTex(square->fx, square->fy, square->fw, square->fh,
 407                 0, 0, texture_width, texture_height,
 408                 texture_width, texture_height,
 409                 0, image_format == IMGFMT_YV12, 0);
 410       square++;
 411     } /* for all texnumx */
 412   } /* for all texnumy */
 413   if (image_format == IMGFMT_YV12)
 414     glDisableYUVConversion(GL_TEXTURE_2D, use_yuv);
 415   texdirty = 0;
 416 }
 417
 418
 419 static void resize(int x,int y){
 420   mp_msg(MSGT_VO,MSGL_V,"[gl2] Resize: %dx%d\n",x,y);
 421   if(aspect_scaling()) {
 422     glClear(GL_COLOR_BUFFER_BIT);
 423     aspect(&x, &y, A_WINZOOM);
 424     panscan_calc_windowed();
 425     x += vo_panscan_x;
 426     y += vo_panscan_y;
 427     glViewport( (vo_dwidth-x)/2, (vo_dheight-y)/2, x, y);
 428   } else {
 429     //aspect(x, y, A_NOZOOM);
 430     if (WinID >= 0) {
 431       int top = 0, left = 0, w = x, h = y;
 432       geometry(&top, &left, &w, &h, vo_screenwidth, vo_screenheight);
 433       glViewport(top, left, w, h);
 434     } else
 435       glViewport( 0, 0, x, y );
 436   }
 437
 438   glMatrixMode(GL_PROJECTION);
 439   glLoadIdentity();
 440   glOrtho (0, 1, 1, 0, -1.0, 1.0);
 441
 442   glMatrixMode(GL_MODELVIEW);
 443   glLoadIdentity();
 444 }
 445
 446 static void draw_alpha_32(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 447    vo_draw_alpha_rgb32(w,h,src,srca,stride,ImageData+4*(y0*image_width+x0),4*image_width);
 448 }
 449
 450 static void draw_alpha_24(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 451    vo_draw_alpha_rgb24(w,h,src,srca,stride,ImageData+3*(y0*image_width+x0),3*image_width);
 452 }
 453
 454 static void draw_alpha_16(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 455    vo_draw_alpha_rgb16(w,h,src,srca,stride,ImageData+2*(y0*image_width+x0),2*image_width);
 456 }
 457
 458 static void draw_alpha_15(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 459    vo_draw_alpha_rgb15(w,h,src,srca,stride,ImageData+2*(y0*image_width+x0),2*image_width);
 460 }
 461
 462 static void draw_alpha_null(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 463 }
 464
 465 #ifdef GL_WIN32
 466
 467 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) {
 468   if (!vo_w32_config(d_width, d_height, flags))
 469     return -1;
 470
 471   return 0;
 472 }
 473
 474 #else
 475
 476 static int choose_glx_visual(Display *dpy, int scr, XVisualInfo *res_vi)
 477 {
 478   XVisualInfo template, *vi_list;
 479   int vi_num, i, best_i, best_weight;
 480
 481   template.screen = scr;
 482   vi_list = XGetVisualInfo(dpy, VisualScreenMask, &template, &vi_num);
 483   if (!vi_list) return -1;
 484   best_weight = 1000000; best_i=0;
 485   for (i = 0; i < vi_num; i++) {
 486     int val, res, w = 0;
 487     /* of course, the visual must support OpenGL rendering... */
 488     res = glXGetConfig(dpy, vi_list + i, GLX_USE_GL, &val);
 489     if (res || val == False) continue;
 490     /* also it must be doublebuffered ... */
 491     res = glXGetConfig(dpy, vi_list + i, GLX_DOUBLEBUFFER, &val);
 492     if (res || val == False) continue;
 493     /* furthermore it must be RGBA (not color indexed) ... */
 494     res = glXGetConfig(dpy, vi_list + i, GLX_RGBA, &val);
 495     if (res || val == False) continue;
 496     /* prefer less depth buffer size, */
 497     res = glXGetConfig(dpy, vi_list + i, GLX_DEPTH_SIZE, &val);
 498     if (res) continue;
 499     w += val*2;
 500     /* stencil buffer size */
 501     res = glXGetConfig(dpy, vi_list + i, GLX_STENCIL_SIZE, &val);
 502     if (res) continue;
 503     w += val*2;
 504     /* and colorbuffer alpha size */
 505     res = glXGetConfig(dpy, vi_list + i, GLX_ALPHA_SIZE, &val);
 506     if (res) continue;
 507     w += val;
 508     /* and finally, prefer DirectColor-ed visuals to allow color corrections */
 509     if (vi_list[i].class != DirectColor) w += 100;
 510
 511     // avoid bad-looking visual with less that 8bit per color
 512     res = glXGetConfig(dpy, vi_list + i, GLX_RED_SIZE, &val);
 513     if (res) continue;
 514     if (val < 8) w += 50;
 515     res = glXGetConfig(dpy, vi_list + i, GLX_GREEN_SIZE, &val);
 516     if (res) continue;
 517     if (val < 8) w += 70;
 518     res = glXGetConfig(dpy, vi_list + i, GLX_BLUE_SIZE, &val);
 519     if (res) continue;
 520     if (val < 8) w += 50;
 521
 522     if (w < best_weight) {
 523       best_weight = w;
 524       best_i = i;
 525     }
 526   }
 527   if (best_weight < 1000000) *res_vi = vi_list[best_i];
 528   XFree(vi_list);
 529   return (best_weight < 1000000) ? 0 : -1;
 530 }
 531
 532 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) {
 533   XVisualInfo *vinfo, vinfo_buf;
 534     vinfo = choose_glx_visual(mDisplay,mScreen,&vinfo_buf) < 0 ? NULL : &vinfo_buf;
 535     if (vinfo == NULL) {
 536       mp_msg(MSGT_VO, MSGL_FATAL, "[gl2] no GLX support present\n");
 537       return -1;
 538     }
 539
 540   vo_x11_create_vo_window(vinfo, vo_dx, vo_dy, d_width, d_height,
 541           flags, vo_x11_create_colormap(vinfo), "gl2", title);
 542
 543   return 0;
 544 }
 545 #endif
 546
 547 static int initGl(uint32_t d_width, uint32_t d_height)
 548 {
 549   fragprog = lookupTex = 0;
 550   if (initTextures() < 0)
 551     return -1;
 552
 553   glDisable(GL_BLEND);
 554   glDisable(GL_DEPTH_TEST);
 555   glDepthMask(GL_FALSE);
 556   glDisable(GL_CULL_FACE);
 557   glEnable (GL_TEXTURE_2D);
 558   if (image_format == IMGFMT_YV12) {
 559     gl_conversion_params_t params = {GL_TEXTURE_2D, use_yuv,
 560           0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0,
 561           texture_width, texture_height};
 562     switch (use_yuv) {
 563       case YUV_CONVERSION_FRAGMENT_LOOKUP:
 564         glGenTextures(1, &lookupTex);
 565         ActiveTexture(GL_TEXTURE3);
 566         glBindTexture(GL_TEXTURE_2D, lookupTex);
 567         ActiveTexture(GL_TEXTURE0);
 568         glBindTexture(GL_TEXTURE_2D, 0);
 569       case YUV_CONVERSION_FRAGMENT_POW:
 570       case YUV_CONVERSION_FRAGMENT:
 571         if (!GenPrograms || !BindProgram) {
 572           mp_msg(MSGT_VO, MSGL_ERR, "[gl] fragment program functions missing!\n");
 573           break;
 574         }
 575         GenPrograms(1, &fragprog);
 576         BindProgram(GL_FRAGMENT_PROGRAM, fragprog);
 577         break;
 578     }
 579     glSetupYUVConversion(&params);
 580   }
 581
 582   gl_set_antialias(0);
 583   gl_set_bilinear(1);
 584
 585   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",
 586         image_bpp, image_bytes,
 587         glValName(gl_bitmap_format), glValName(gl_bitmap_type),
 588         rgb_sz, r_sz, g_sz, b_sz, a_sz, glValName(gl_internal_format));
 589
 590   resize(d_width, d_height);
 591
 592   glClearColor( 0.0f,0.0f,0.0f,0.0f );
 593   glClear( GL_COLOR_BUFFER_BIT );
 594
 595   drawTextureDisplay ();
 596
 597   return 0;
 598 }
 599
 600 /* connect to server, create and map window,
 601  * allocate colors and (shared) memory
 602  */
 603 static int
 604 config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
 605 {
 606   const unsigned char * glVersion;
 607
 608   image_height = height;
 609   image_width = width;
 610   image_format = format;
 611
 612 #ifdef GL_WIN32
 613   if (config_w32(width, height, d_width, d_height, flags, title, format) == -1)
 614 #else
 615   if (config_glx(width, height, d_width, d_height, flags, title, format) == -1)
 616 #endif
 617     return -1;
 618
 619   if (setGlWindow(&gl_vinfo, &gl_context, vo_window) == SET_WINDOW_FAILED)
 620     return -1;
 621
 622   glVersion = glGetString(GL_VERSION);
 623
 624   mp_msg(MSGT_VO, MSGL_V, "[gl2] OpenGL Driver Information:\n");
 625   mp_msg(MSGT_VO, MSGL_V, "\tvendor: %s,\n\trenderer %s,\n\tversion %s\n",
 626          glGetString(GL_VENDOR), glGetString(GL_RENDERER), glVersion);
 627
 628   if(glVersion[0]>'1' || (glVersion[0]=='1' && glVersion[2]>='2') )
 629     isGL12 = GL_TRUE;
 630   else
 631     isGL12 = GL_FALSE;
 632
 633   if(isGL12) {
 634     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL >= 1.2 capable drivers, GOOD (16bpp and BGR is ok!)\n");
 635   } else {
 636     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL < 1.2 drivers, BAD (16bpp and BGR may be damaged!)\n");
 637   }
 638
 639   glFindFormat(format, &image_bpp, &gl_internal_format, &gl_bitmap_format, &gl_bitmap_type);
 640
 641   image_bytes=(image_bpp+7)/8;
 642
 643   draw_alpha_fnc=draw_alpha_null;
 644
 645   switch(image_bpp) {
 646     case 15:
 647       draw_alpha_fnc=draw_alpha_15; break;
 648     case 16:
 649       draw_alpha_fnc=draw_alpha_16; break;
 650     case 24:
 651       draw_alpha_fnc=draw_alpha_24; break;
 652     case 32:
 653       draw_alpha_fnc=draw_alpha_32; break;
 654   }
 655
 656   if (initGl(vo_dwidth, vo_dheight) == -1)
 657     return -1;
 658
 659   return 0;
 660 }
 661
 662 #ifndef GL_WIN32
 663 static int gl_handlekey(int key)
 664 {
 665   if(key=='a'||key=='A') {
 666     gl_set_antialias(!gl_antialias);
 667     return 0;
 668   } else if(key=='b'||key=='B') {
 669     gl_set_bilinear(-1);
 670     return 0;
 671   }
 672   return 1;
 673 }
 674 #endif
 675
 676 static void check_events(void)
 677 {
 678   int e;
 679 #ifndef GL_WIN32
 680   XEvent         Event;
 681   char           buf[100];
 682   KeySym         keySym;
 683   int            key;
 684   static XComposeStatus stat;
 685
 686   while ( XPending( mDisplay ) ) {
 687     XNextEvent( mDisplay,&Event );
 688     if( Event.type == KeyPress ) {
 689       XLookupString( &Event.xkey,buf,sizeof(buf),&keySym,&stat );
 690       key = (keySym&0xff00) != 0 ? (keySym&0x00ff) + 256 : keySym;
 691       if(gl_handlekey(key))
 692         XPutBackEvent(mDisplay, &Event);
 693       break;
 694     } else {
 695       XPutBackEvent(mDisplay, &Event);
 696       break;
 697     }
 698   }
 699 #endif
 700   e=vo_check_events();
 701   if(e&VO_EVENT_RESIZE) resize(vo_dwidth, vo_dheight);
 702   if(e&VO_EVENT_EXPOSE && int_pause) flip_page();
 703 }
 704
 705 static void draw_osd(void)
 706 {
 707   if (ImageData)
 708     vo_draw_text(image_width,image_height,draw_alpha_fnc);
 709 }
 710
 711 static void
 712 flip_page(void)
 713 {
 714   drawTextureDisplay();
 715
 716 //  glFlush();
 717   if (use_glFinish)
 718   glFinish();
 719   swapGlBuffers();
 720
 721   if (aspect_scaling()) // Avoid flickering borders in fullscreen mode
 722     glClear (GL_COLOR_BUFFER_BIT);
 723 }
 724
 725 static int draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
 726 {
 727   uint8_t *yptr = src[0], *uptr = src[1], *vptr = src[2];
 728   int ystride = stride[0], ustride = stride[1], vstride = stride[2];
 729   int rem_h = h;
 730   struct TexSquare *texline = &texgrid[y / texture_height * texnumx];
 731   int subtex_y = y % texture_width;
 732   while (rem_h > 0) {
 733     int rem_w = w;
 734     struct TexSquare *tsq = &texline[x / texture_width];
 735     int subtex_x = x % texture_height;
 736     int subtex_h = rem_h;
 737     if (subtex_y + subtex_h > texture_height)
 738       subtex_h = texture_height - subtex_y;
 739     while (rem_w > 0) {
 740       int subtex_w = rem_w;
 741       if (subtex_x + subtex_w > texture_width)
 742         subtex_w = texture_width - subtex_x;
 743       ActiveTexture(GL_TEXTURE0);
 744       glBindTexture(GL_TEXTURE_2D, tsq->texobj);
 745       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 746                   yptr, ystride, subtex_x, subtex_y,
 747                   subtex_w, subtex_h, 0);
 748       ActiveTexture(GL_TEXTURE1);
 749       glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[0]);
 750       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 751                   uptr, ustride, subtex_x / 2, subtex_y / 2,
 752                   subtex_w / 2, subtex_h / 2, 0);
 753       ActiveTexture(GL_TEXTURE2);
 754       glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[1]);
 755       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 756                   vptr, vstride, subtex_x / 2, subtex_y / 2,
 757                   subtex_w / 2, subtex_h / 2, 0);
 758       subtex_x = 0;
 759       yptr += subtex_w;
 760       uptr += subtex_w / 2;
 761       vptr += subtex_w / 2;
 762       tsq++;
 763       rem_w -= subtex_w;
 764     }
 765     subtex_y = 0;
 766     yptr += subtex_h * ystride - w;
 767     uptr += subtex_h / 2 * ustride - w / 2;
 768     vptr += subtex_h / 2 * vstride - w / 2;
 769     texline += texnumx;
 770     rem_h -= subtex_h;
 771   }
 772   ActiveTexture(GL_TEXTURE0);
 773     return 0;
 774 }
 775
 776 static int
 777 draw_frame(uint8_t *src[])
 778 {
 779   if (image_format == IMGFMT_YV12) {
 780     mp_msg(MSGT_VO, MSGL_ERR, "[gl2] error: draw_frame called for YV12!\n");
 781     return 0;
 782   }
 783   ImageData=(unsigned char *)src[0];
 784   resetTexturePointers(ImageData);
 785   texdirty = 1;
 786   return 0;
 787 }
 788
 789 static int
 790 query_format(uint32_t format)
 791 {
 792   switch(format) {
 793     case IMGFMT_YV12:
 794       if (use_yuv)
 795         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD |
 796                VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN | VFCAP_ACCEPT_STRIDE;
 797       break;
 798 #ifdef __APPLE__
 799     case IMGFMT_RGB32:
 800 #else
 801     case IMGFMT_RGB24:
 802     case IMGFMT_BGR24:
 803 //    case IMGFMT_RGB32:
 804 //    case IMGFMT_BGR32:
 805 #endif
 806         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD;
 807   }
 808   return 0;
 809 }
 810
 811
 812 static void
 813 uninit(void)
 814 {
 815   if ( !vo_config_count ) return;
 816   releaseGlContext(&gl_vinfo, &gl_context);
 817   if (texgrid) {
 818     free(texgrid);
 819     texgrid = NULL;
 820   }
 821   vo_uninit();
 822 }
 823
 824 static const opt_t subopts[] = {
 825   {"yuv",          OPT_ARG_INT,  &use_yuv,      (opt_test_f)int_non_neg},
 826   {"glfinish",     OPT_ARG_BOOL, &use_glFinish, NULL},
 827   {NULL}
 828 };
 829
 830 static int preinit(const char *arg)
 831 {
 832   // set defaults
 833   use_yuv = 0;
 834   use_glFinish = 1;
 835   if (subopt_parse(arg, subopts) != 0) {
 836     mp_msg(MSGT_VO, MSGL_FATAL,
 837             "\n-vo gl2 command line help:\n"
 838             "Example: mplayer -vo gl2:noglfinish\n"
 839             "\nOptions:\n"
 840             "  noglfinish\n"
 841             "    Do not call glFinish() before swapping buffers\n"
 842             "  yuv=<n>\n"
 843             "    0: use software YUV to RGB conversion.\n"
 844             "    1: use register combiners (nVidia only, for older cards).\n"
 845             "    2: use fragment program.\n"
 846             "    3: use fragment program with gamma correction.\n"
 847             "    4: use fragment program with gamma correction via lookup.\n"
 848             "    5: use ATI-specific method (for older cards).\n"
 849             "\n" );
 850     return -1;
 851   }
 852     if( !vo_init() ) return -1; // Can't open X11
 853     return 0;
 854 }
 855
 856 static int control(uint32_t request, void *data)
 857 {
 858   switch (request) {
 859     case VOCTRL_PAUSE:
 860     case VOCTRL_RESUME:
 861       int_pause = (request == VOCTRL_PAUSE);
 862       return VO_TRUE;
 863     case VOCTRL_QUERY_FORMAT:
 864       return query_format(*((uint32_t*)data));
 865     case VOCTRL_ONTOP:
 866       vo_gl_ontop();
 867       return VO_TRUE;
 868     case VOCTRL_FULLSCREEN:
 869       vo_fullscreen();
 870       if (setGlWindow(&gl_vinfo, &gl_context, vo_window) == SET_WINDOW_REINIT)
 871         initGl(vo_dwidth, vo_dheight);
 872       resize(vo_dwidth, vo_dheight);
 873       return VO_TRUE;
 874     case VOCTRL_BORDER:
 875       vo_gl_border();
 876       return VO_TRUE;
 877     case VOCTRL_GET_PANSCAN:
 878       return VO_TRUE;
 879     case VOCTRL_SET_PANSCAN:
 880       resize(vo_dwidth, vo_dheight);
 881       return VO_TRUE;
 882 #ifndef GL_WIN32
 883     case VOCTRL_SET_EQUALIZER:
 884     {
 885       struct voctrl_set_equalizer_args *args = data;
 886       return vo_x11_set_equalizer(args->name, args->value);
 887     }
 888     case VOCTRL_GET_EQUALIZER:
 889     {
 890       struct voctrl_get_equalizer_args *args = data;
 891       return vo_x11_get_equalizer(args->name, args->valueptr);
 892     }
 893 #endif
 894     case VOCTRL_UPDATE_SCREENINFO:
 895       update_xinerama_info();
 896       return VO_TRUE;
 897   }
 898   return VO_NOTIMPL;
 899 }