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 static MPGLContext glctx;
  66
  67 static uint32_t image_width;
  68 static uint32_t image_height;
  69 static uint32_t image_format;
  70 static uint32_t image_bpp;
  71 static uint32_t image_bytes;
  72
  73 static int int_pause;
  74
  75 static uint32_t texture_width;
  76 static uint32_t texture_height;
  77 static int texnumx, texnumy, raw_line_len;
  78 static int texdirty;
  79 static struct TexSquare * texgrid = NULL;
  80 static GLuint   fragprog;
  81 static GLuint   lookupTex;
  82 static GLint    gl_internal_format;
  83 static int      rgb_sz, r_sz, g_sz, b_sz, a_sz;
  84 static GLenum   gl_bitmap_format;
  85 static GLenum   gl_bitmap_type;
  86 static int      isGL12 = GL_FALSE;
  87
  88 static int      gl_bilinear=1;
  89 static int      gl_antialias=0;
  90 static int      use_yuv;
  91 static int      is_yuv;
  92 static int      use_glFinish;
  93
  94 static void (*draw_alpha_fnc)
  95                  (int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride);
  96
  97
  98 /* The squares that are tiled to make up the game screen polygon */
  99
 100 struct TexSquare
 101 {
 102   GLubyte *texture;
 103   GLuint texobj;
 104   GLuint uvtexobjs[2];
 105   GLfloat fx, fy, fw, fh;
 106 };
 107
 108 static GLint getInternalFormat(void)
 109 {
 110   switch (glctx.type) {
 111 #ifdef CONFIG_GL_WIN32
 112   case GLTYPE_W32:
 113   {
 114   PIXELFORMATDESCRIPTOR pfd;
 115   HDC vo_hdc = vo_w32_get_dc(vo_w32_window);
 116   int pf = GetPixelFormat(vo_hdc);
 117   if (!DescribePixelFormat(vo_hdc, pf, sizeof pfd, &pfd)) {
 118     r_sz = g_sz = b_sz = a_sz = 0;
 119   } else {
 120     r_sz = pfd.cRedBits;
 121     g_sz = pfd.cGreenBits;
 122     b_sz = pfd.cBlueBits;
 123     a_sz = pfd.cAlphaBits;
 124   }
 125   vo_w32_release_dc(vo_w32_window, vo_hdc);
 126   }
 127   break;
 128 #endif
 129 #ifdef CONFIG_GL_X11
 130   case GLTYPE_X11:
 131   if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_RED_SIZE, &r_sz) != 0) r_sz = 0;
 132   if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_GREEN_SIZE, &g_sz) != 0) g_sz = 0;
 133   if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_BLUE_SIZE, &b_sz) != 0) b_sz = 0;
 134   if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_ALPHA_SIZE, &a_sz) != 0) a_sz = 0;
 135   break;
 136 #endif
 137   }
 138
 139   rgb_sz=r_sz+g_sz+b_sz;
 140   if(rgb_sz<=0) rgb_sz=24;
 141
 142 #ifdef TEXTUREFORMAT_ALWAYS
 143   return TEXTUREFORMAT_ALWAYS;
 144 #else
 145   if(r_sz==3 && g_sz==3 && b_sz==2 && a_sz==0)
 146     return GL_R3_G3_B2;
 147   if(r_sz==4 && g_sz==4 && b_sz==4 && a_sz==0)
 148     return GL_RGB4;
 149   if(r_sz==5 && g_sz==5 && b_sz==5 && a_sz==0)
 150     return GL_RGB5;
 151   if(r_sz==8 && g_sz==8 && b_sz==8 && a_sz==0)
 152     return GL_RGB8;
 153   if(r_sz==10 && g_sz==10 && b_sz==10 && a_sz==0)
 154     return GL_RGB10;
 155   if(r_sz==2 && g_sz==2 && b_sz==2 && a_sz==2)
 156     return GL_RGBA2;
 157   if(r_sz==4 && g_sz==4 && b_sz==4 && a_sz==4)
 158     return GL_RGBA4;
 159   if(r_sz==5 && g_sz==5 && b_sz==5 && a_sz==1)
 160     return GL_RGB5_A1;
 161   if(r_sz==8 && g_sz==8 && b_sz==8 && a_sz==8)
 162     return GL_RGBA8;
 163   if(r_sz==10 && g_sz==10 && b_sz==10 && a_sz==2)
 164     return GL_RGB10_A2;
 165 #endif
 166   return GL_RGB;
 167 }
 168
 169 static int initTextures(void)
 170 {
 171   struct TexSquare *tsq=0;
 172   GLfloat texpercx, texpercy;
 173   int s;
 174   int x=0, y=0;
 175   GLint format=0;
 176
 177   // textures smaller than 64x64 might not be supported
 178   s=64;
 179   while (s<image_width)
 180     s*=2;
 181   texture_width=s;
 182
 183   s=64;
 184   while (s<image_height)
 185     s*=2;
 186   texture_height=s;
 187
 188   if (!is_yuv)
 189   gl_internal_format = getInternalFormat();
 190
 191   /* Test the max texture size */
 192   do {
 193     glTexImage2D (GL_PROXY_TEXTURE_2D, 0,
 194                   gl_internal_format,
 195                   texture_width, texture_height,
 196                   0, gl_bitmap_format, gl_bitmap_type, NULL);
 197
 198     glGetTexLevelParameteriv
 199       (GL_PROXY_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &format);
 200
 201     if (format != gl_internal_format)
 202     {
 203       mp_msg (MSGT_VO, MSGL_V, "[gl2] Needed texture [%dx%d] too big, trying ",
 204               texture_height, texture_width);
 205
 206       if (texture_width > texture_height)
 207         texture_width /= 2;
 208       else
 209         texture_height /= 2;
 210
 211       mp_msg (MSGT_VO, MSGL_V, "[%dx%d] !\n", texture_height, texture_width);
 212
 213       if(texture_width < 64 || texture_height < 64) {
 214         mp_msg (MSGT_VO, MSGL_FATAL, "[gl2] Give up .. usable texture size not avaiable, or texture config error !\n");
 215         return -1;
 216       }
 217     }
 218   }
 219   while (format != gl_internal_format && texture_width > 1 && texture_height > 1);
 220 #ifdef TEXTURE_WIDTH
 221   texture_width = TEXTURE_WIDTH;
 222 #endif
 223 #ifdef TEXTURE_HEIGHT
 224   texture_height = TEXTURE_HEIGHT;
 225 #endif
 226
 227   texnumx = image_width / texture_width;
 228   if ((image_width % texture_width) > 0)
 229     texnumx++;
 230
 231   texnumy = image_height / texture_height;
 232   if ((image_height % texture_height) > 0)
 233     texnumy++;
 234
 235   mp_msg(MSGT_VO, MSGL_V, "[gl2] Creating %dx%d textures of size %dx%d ...\n",
 236          texnumx, texnumy, texture_width,texture_height);
 237
 238   /* Allocate the texture memory */
 239
 240   texpercx = (GLfloat) texture_width / (GLfloat) image_width;
 241   texpercy = (GLfloat) texture_height / (GLfloat) image_height;
 242
 243   if (texgrid)
 244     free(texgrid);
 245   texgrid = calloc (texnumx * texnumy, sizeof (struct TexSquare));
 246
 247   raw_line_len = image_width * image_bytes;
 248
 249   mp_msg (MSGT_VO, MSGL_DBG2, "[gl2] texture-usage %d*width=%d, %d*height=%d\n",
 250           (int) texnumx, (int) texture_width, (int) texnumy,
 251           (int) texture_height);
 252
 253   tsq = texgrid;
 254   for (y = 0; y < texnumy; y++) {
 255     for (x = 0; x < texnumx; x++) {
 256       tsq->fx = x * texpercx;
 257       tsq->fy = y * texpercy;
 258       tsq->fw = texpercx;
 259       tsq->fh = texpercy;
 260
 261       tsq->texobj=0;
 262       tsq->uvtexobjs[0] = tsq->uvtexobjs[1] = 0;
 263
 264       glGenTextures (1, &(tsq->texobj));
 265
 266       glBindTexture (GL_TEXTURE_2D, tsq->texobj);
 267       if (is_yuv) {
 268         glGenTextures(2, tsq->uvtexobjs);
 269         ActiveTexture(GL_TEXTURE1);
 270         glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[0]);
 271         ActiveTexture(GL_TEXTURE2);
 272         glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[1]);
 273         ActiveTexture(GL_TEXTURE0);
 274       }
 275
 276       glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 277                        texture_width, texture_height, 0);
 278
 279       glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 280       if (is_yuv) {
 281         int xs, ys;
 282         mp_get_chroma_shift(image_format, &xs, &ys);
 283         ActiveTexture(GL_TEXTURE1);
 284         glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 285                          texture_width >> xs, texture_height >> ys, 128);
 286         ActiveTexture(GL_TEXTURE2);
 287         glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 288                          texture_width >> xs, texture_height >> ys, 128);
 289         ActiveTexture(GL_TEXTURE0);
 290       }
 291
 292       tsq++;
 293     }  /* for all texnumx */
 294   }  /* for all texnumy */
 295
 296   return 0;
 297 }
 298
 299 static void resetTexturePointers(unsigned char *imageSource)
 300 {
 301   unsigned char *texdata_start, *line_start;
 302   struct TexSquare *tsq = texgrid;
 303   int x=0, y=0;
 304
 305   line_start = (unsigned char *) imageSource;
 306
 307   for (y = 0; y < texnumy; y++) {
 308     texdata_start = line_start;
 309     for (x = 0; x < texnumx; x++) {
 310       tsq->texture = texdata_start;
 311       texdata_start += texture_width * image_bytes;
 312       tsq++;
 313     }  /* for all texnumx */
 314     line_start += texture_height * raw_line_len;
 315   }  /* for all texnumy */
 316 }
 317
 318 static void gl_set_bilinear (int val)
 319 {
 320   int x, y;
 321
 322   if(val>=0)
 323     gl_bilinear = val;
 324   else
 325     gl_bilinear++;
 326
 327   gl_bilinear=gl_bilinear%2;
 328   /* no mipmap yet .. */
 329
 330   for (y = 0; y < texnumy; y++) {
 331     for (x = 0; x < texnumx; x++) {
 332       glBindTexture (GL_TEXTURE_2D, texgrid[y * texnumx + x].texobj);
 333
 334       switch (gl_bilinear) {
 335         case 0:
 336           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 337           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 338           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear off\n");
 339           break;
 340         case 1:
 341           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 342           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 343           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear linear\n");
 344           break;
 345         case 2:
 346           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
 347           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
 348           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap nearest\n");
 349           break;
 350         case 3:
 351           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 352           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 353           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap linear\n");
 354           break;
 355       }
 356     }
 357   }
 358 }
 359
 360 static void gl_set_antialias (int val)
 361 {
 362   gl_antialias=val;
 363
 364   if (gl_antialias) {
 365     glShadeModel (GL_SMOOTH);
 366     glEnable (GL_POLYGON_SMOOTH);
 367     glEnable (GL_LINE_SMOOTH);
 368     glEnable (GL_POINT_SMOOTH);
 369     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing on\n");
 370   } else {
 371     glShadeModel (GL_FLAT);
 372     glDisable (GL_POLYGON_SMOOTH);
 373     glDisable (GL_LINE_SMOOTH);
 374     glDisable (GL_POINT_SMOOTH);
 375     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing off\n");
 376   }
 377 }
 378
 379
 380 static void drawTextureDisplay (void)
 381 {
 382   struct TexSquare *square = texgrid;
 383   int x, y;
 384
 385   glColor3f(1.0,1.0,1.0);
 386
 387   if (is_yuv)
 388     glEnableYUVConversion(GL_TEXTURE_2D, use_yuv);
 389   for (y = 0; y < texnumy; y++) {
 390     int thish = texture_height;
 391     if (y == texnumy - 1 && image_height % texture_height)
 392       thish = image_height % texture_height;
 393     for (x = 0; x < texnumx; x++) {
 394       int thisw = texture_width;
 395       if (x == texnumx - 1 && image_width % texture_width)
 396         thisw = image_width % texture_width;
 397       glBindTexture (GL_TEXTURE_2D, square->texobj);
 398       if (is_yuv) {
 399         ActiveTexture(GL_TEXTURE1);
 400         glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[0]);
 401         ActiveTexture(GL_TEXTURE2);
 402         glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[1]);
 403         ActiveTexture(GL_TEXTURE0);
 404       }
 405
 406       if (texdirty) {
 407         glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 408                     square->texture, image_width * image_bytes,
 409                     0, 0, thisw, thish, 0);
 410       }
 411
 412       glDrawTex(square->fx, square->fy, square->fw, square->fh,
 413                 0, 0, texture_width, texture_height,
 414                 texture_width, texture_height,
 415                 0, is_yuv, 0);
 416       square++;
 417     } /* for all texnumx */
 418   } /* for all texnumy */
 419   if (is_yuv)
 420     glDisableYUVConversion(GL_TEXTURE_2D, use_yuv);
 421   texdirty = 0;
 422 }
 423
 424
 425 static void resize(int x,int y){
 426   mp_msg(MSGT_VO,MSGL_V,"[gl2] Resize: %dx%d\n",x,y);
 427   if(aspect_scaling()) {
 428     glClear(GL_COLOR_BUFFER_BIT);
 429     aspect(&x, &y, A_WINZOOM);
 430     panscan_calc_windowed();
 431     x += vo_panscan_x;
 432     y += vo_panscan_y;
 433     glViewport( (vo_dwidth-x)/2, (vo_dheight-y)/2, x, y);
 434   } else {
 435     //aspect(x, y, A_NOZOOM);
 436     if (WinID >= 0) {
 437       int top = 0, left = 0, w = x, h = y;
 438       geometry(&top, &left, &w, &h, vo_screenwidth, vo_screenheight);
 439       glViewport(top, left, w, h);
 440     } else
 441       glViewport( 0, 0, x, y );
 442   }
 443
 444   glMatrixMode(GL_PROJECTION);
 445   glLoadIdentity();
 446   glOrtho (0, 1, 1, 0, -1.0, 1.0);
 447
 448   glMatrixMode(GL_MODELVIEW);
 449   glLoadIdentity();
 450 }
 451
 452 static void draw_alpha_32(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 453    vo_draw_alpha_rgb32(w,h,src,srca,stride,ImageData+4*(y0*image_width+x0),4*image_width);
 454 }
 455
 456 static void draw_alpha_24(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 457    vo_draw_alpha_rgb24(w,h,src,srca,stride,ImageData+3*(y0*image_width+x0),3*image_width);
 458 }
 459
 460 static void draw_alpha_16(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 461    vo_draw_alpha_rgb16(w,h,src,srca,stride,ImageData+2*(y0*image_width+x0),2*image_width);
 462 }
 463
 464 static void draw_alpha_15(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 465    vo_draw_alpha_rgb15(w,h,src,srca,stride,ImageData+2*(y0*image_width+x0),2*image_width);
 466 }
 467
 468 static void draw_alpha_null(int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride){
 469 }
 470
 471 #ifdef CONFIG_GL_WIN32
 472
 473 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) {
 474   if (!vo_w32_config(d_width, d_height, flags))
 475     return -1;
 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 (is_yuv) {
 572     int xs, ys;
 573     gl_conversion_params_t params = {GL_TEXTURE_2D, use_yuv,
 574           {-1, -1, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0},
 575           texture_width, texture_height, 0, 0, 0};
 576     switch (use_yuv) {
 577       case YUV_CONVERSION_FRAGMENT_LOOKUP:
 578         glGenTextures(1, &lookupTex);
 579         ActiveTexture(GL_TEXTURE3);
 580         glBindTexture(GL_TEXTURE_2D, lookupTex);
 581         ActiveTexture(GL_TEXTURE0);
 582         glBindTexture(GL_TEXTURE_2D, 0);
 583       case YUV_CONVERSION_FRAGMENT_POW:
 584       case YUV_CONVERSION_FRAGMENT:
 585         if (!GenPrograms || !BindProgram) {
 586           mp_msg(MSGT_VO, MSGL_ERR, "[gl] fragment program functions missing!\n");
 587           break;
 588         }
 589         GenPrograms(1, &fragprog);
 590         BindProgram(GL_FRAGMENT_PROGRAM, fragprog);
 591         break;
 592     }
 593     mp_get_chroma_shift(image_format, &xs, &ys);
 594     params.chrom_texw = params.texw >> xs;
 595     params.chrom_texh = params.texh >> ys;
 596     glSetupYUVConversion(&params);
 597   }
 598
 599   gl_set_antialias(0);
 600   gl_set_bilinear(1);
 601
 602   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",
 603         image_bpp, image_bytes,
 604         glValName(gl_bitmap_format), glValName(gl_bitmap_type),
 605         rgb_sz, r_sz, g_sz, b_sz, a_sz, glValName(gl_internal_format));
 606
 607   resize(d_width, d_height);
 608
 609   glClearColor( 0.0f,0.0f,0.0f,0.0f );
 610   glClear( GL_COLOR_BUFFER_BIT );
 611
 612   drawTextureDisplay ();
 613
 614   return 0;
 615 }
 616
 617 /* connect to server, create and map window,
 618  * allocate colors and (shared) memory
 619  */
 620 static int
 621 config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
 622 {
 623   int xs, ys;
 624   const unsigned char * glVersion;
 625
 626   image_height = height;
 627   image_width = width;
 628   image_format = format;
 629   is_yuv = mp_get_chroma_shift(image_format, &xs, &ys) > 0;
 630   is_yuv |= (xs << 8) | (ys << 16);
 631
 632   int_pause = 0;
 633
 634 #ifdef CONFIG_GUI
 635   if (use_gui) {
 636     if (config_glx_gui(d_width, d_height) == -1)
 637       return -1;
 638   }
 639 #ifndef CONFIG_GL_WIN32
 640   else
 641 #endif
 642 #endif
 643 #ifdef CONFIG_GL_WIN32
 644   if (config_w32(width, height, d_width, d_height, flags, title, format) == -1)
 645 #else
 646   if (config_glx(width, height, d_width, d_height, flags, title, format) == -1)
 647 #endif
 648     return -1;
 649
 650   if (glctx.setGlWindow(&glctx) == SET_WINDOW_FAILED)
 651     return -1;
 652
 653   glVersion = glGetString(GL_VERSION);
 654
 655   mp_msg(MSGT_VO, MSGL_V, "[gl2] OpenGL Driver Information:\n");
 656   mp_msg(MSGT_VO, MSGL_V, "\tvendor: %s,\n\trenderer %s,\n\tversion %s\n",
 657          glGetString(GL_VENDOR), glGetString(GL_RENDERER), glVersion);
 658
 659   if(glVersion[0]>'1' || (glVersion[0]=='1' && glVersion[2]>='2') )
 660     isGL12 = GL_TRUE;
 661   else
 662     isGL12 = GL_FALSE;
 663
 664   if(isGL12) {
 665     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL >= 1.2 capable drivers, GOOD (16bpp and BGR is ok!)\n");
 666   } else {
 667     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL < 1.2 drivers, BAD (16bpp and BGR may be damaged!)\n");
 668   }
 669
 670   glFindFormat(format, &image_bpp, &gl_internal_format, &gl_bitmap_format, &gl_bitmap_type);
 671
 672   image_bytes=(image_bpp+7)/8;
 673
 674   draw_alpha_fnc=draw_alpha_null;
 675
 676   switch(image_bpp) {
 677     case 15:
 678       draw_alpha_fnc=draw_alpha_15; break;
 679     case 16:
 680       draw_alpha_fnc=draw_alpha_16; break;
 681     case 24:
 682       draw_alpha_fnc=draw_alpha_24; break;
 683     case 32:
 684       draw_alpha_fnc=draw_alpha_32; break;
 685   }
 686
 687   if (initGl(vo_dwidth, vo_dheight) == -1)
 688     return -1;
 689
 690   return 0;
 691 }
 692
 693 #ifndef CONFIG_GL_WIN32
 694 static int gl_handlekey(int key)
 695 {
 696   if(key=='a'||key=='A') {
 697     gl_set_antialias(!gl_antialias);
 698     return 0;
 699   } else if(key=='b'||key=='B') {
 700     gl_set_bilinear(-1);
 701     return 0;
 702   }
 703   return 1;
 704 }
 705 #endif
 706
 707 static void check_events(void)
 708 {
 709   int e;
 710 #ifndef CONFIG_GL_WIN32
 711   XEvent         Event;
 712   char           buf[100];
 713   KeySym         keySym;
 714   int            key;
 715   static XComposeStatus stat;
 716
 717   while ( XPending( mDisplay ) ) {
 718     XNextEvent( mDisplay,&Event );
 719     if( Event.type == KeyPress ) {
 720       XLookupString( &Event.xkey,buf,sizeof(buf),&keySym,&stat );
 721       key = (keySym&0xff00) != 0 ? (keySym&0x00ff) + 256 : keySym;
 722       if(gl_handlekey(key))
 723         XPutBackEvent(mDisplay, &Event);
 724       break;
 725     } else {
 726       XPutBackEvent(mDisplay, &Event);
 727       break;
 728     }
 729   }
 730 #endif
 731   e=glctx.check_events();
 732   if(e&VO_EVENT_RESIZE) resize(vo_dwidth, vo_dheight);
 733   if(e&VO_EVENT_EXPOSE && int_pause) flip_page();
 734 }
 735
 736 static void draw_osd(void)
 737 {
 738   if (ImageData)
 739     vo_draw_text(image_width,image_height,draw_alpha_fnc);
 740 }
 741
 742 static void
 743 flip_page(void)
 744 {
 745   drawTextureDisplay();
 746
 747 //  glFlush();
 748   if (use_glFinish)
 749   glFinish();
 750   glctx.swapGlBuffers(&glctx);
 751
 752   if (aspect_scaling()) // Avoid flickering borders in fullscreen mode
 753     glClear (GL_COLOR_BUFFER_BIT);
 754 }
 755
 756 static int draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
 757 {
 758   uint8_t *yptr = src[0], *uptr = src[1], *vptr = src[2];
 759   int ystride = stride[0], ustride = stride[1], vstride = stride[2];
 760   int rem_h = h;
 761   struct TexSquare *texline = &texgrid[y / texture_height * texnumx];
 762   int subtex_y = y % texture_width;
 763   int xs, ys;
 764   mp_get_chroma_shift(image_format, &xs, &ys);
 765   while (rem_h > 0) {
 766     int rem_w = w;
 767     struct TexSquare *tsq = &texline[x / texture_width];
 768     int subtex_x = x % texture_height;
 769     int subtex_h = rem_h;
 770     if (subtex_y + subtex_h > texture_height)
 771       subtex_h = texture_height - subtex_y;
 772     while (rem_w > 0) {
 773       int subtex_w = rem_w;
 774       if (subtex_x + subtex_w > texture_width)
 775         subtex_w = texture_width - subtex_x;
 776       ActiveTexture(GL_TEXTURE0);
 777       glBindTexture(GL_TEXTURE_2D, tsq->texobj);
 778       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 779                   yptr, ystride, subtex_x, subtex_y,
 780                   subtex_w, subtex_h, 0);
 781       ActiveTexture(GL_TEXTURE1);
 782       glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[0]);
 783       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 784                   uptr, ustride, subtex_x >> xs, subtex_y >> ys,
 785                   subtex_w >> xs, subtex_h >> ys, 0);
 786       ActiveTexture(GL_TEXTURE2);
 787       glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[1]);
 788       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 789                   vptr, vstride, subtex_x >> xs, subtex_y >> ys,
 790                   subtex_w >> xs, subtex_h >> ys, 0);
 791       subtex_x = 0;
 792       yptr += subtex_w;
 793       uptr += subtex_w >> xs;
 794       vptr += subtex_w >> xs;
 795       tsq++;
 796       rem_w -= subtex_w;
 797     }
 798     subtex_y = 0;
 799     yptr += subtex_h * ystride - w;
 800     uptr += (subtex_h >> ys) * ustride - (w >> xs);
 801     vptr += (subtex_h >> ys) * vstride - (w >> xs);
 802     texline += texnumx;
 803     rem_h -= subtex_h;
 804   }
 805   ActiveTexture(GL_TEXTURE0);
 806     return 0;
 807 }
 808
 809 static int
 810 draw_frame(uint8_t *src[])
 811 {
 812   if (is_yuv) {
 813     mp_msg(MSGT_VO, MSGL_ERR, "[gl2] error: draw_frame called for YV12!\n");
 814     return 0;
 815   }
 816   ImageData=(unsigned char *)src[0];
 817   resetTexturePointers(ImageData);
 818   texdirty = 1;
 819   return 0;
 820 }
 821
 822 static int
 823 query_format(uint32_t format)
 824 {
 825   if (use_yuv && mp_get_chroma_shift(format, NULL, NULL) &&
 826       (IMGFMT_IS_YUVP16_NE(format) || !IMGFMT_IS_YUVP16(format)))
 827     return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD |
 828            VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN | VFCAP_ACCEPT_STRIDE;
 829   switch(format) {
 830 #ifdef __APPLE__
 831     case IMGFMT_RGB32:
 832 #else
 833     case IMGFMT_RGB24:
 834     case IMGFMT_BGR24:
 835 //    case IMGFMT_RGB32:
 836 //    case IMGFMT_BGR32:
 837 #endif
 838         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD;
 839   }
 840   return 0;
 841 }
 842
 843
 844 static void
 845 uninit(void)
 846 {
 847   if ( !vo_config_count ) return;
 848   if (texgrid) {
 849     free(texgrid);
 850     texgrid = NULL;
 851   }
 852   uninit_mpglcontext(&glctx);
 853 }
 854
 855 static const opt_t subopts[] = {
 856   {"yuv",          OPT_ARG_INT,  &use_yuv,      int_non_neg},
 857   {"glfinish",     OPT_ARG_BOOL, &use_glFinish, NULL},
 858   {NULL}
 859 };
 860
 861 static int preinit(const char *arg)
 862 {
 863   enum MPGLType gltype = GLTYPE_X11;
 864   // set defaults
 865 #ifdef CONFIG_GL_WIN32
 866   gltype = GLTYPE_W32;
 867 #endif
 868   use_yuv = 0;
 869   use_glFinish = 1;
 870   if (subopt_parse(arg, subopts) != 0) {
 871     mp_msg(MSGT_VO, MSGL_FATAL,
 872             "\n-vo gl2 command line help:\n"
 873             "Example: mplayer -vo gl2:noglfinish\n"
 874             "\nOptions:\n"
 875             "  noglfinish\n"
 876             "    Do not call glFinish() before swapping buffers\n"
 877             "  yuv=<n>\n"
 878             "    0: use software YUV to RGB conversion.\n"
 879             "    1: use register combiners (nVidia only, for older cards).\n"
 880             "    2: use fragment program.\n"
 881             "    3: use fragment program with gamma correction.\n"
 882             "    4: use fragment program with gamma correction via lookup.\n"
 883             "    5: use ATI-specific method (for older cards).\n"
 884             "\n" );
 885     return -1;
 886   }
 887     if(!init_mpglcontext(&glctx, gltype)) return -1;
 888     return 0;
 889 }
 890
 891 static int control(uint32_t request, void *data, ...)
 892 {
 893   switch (request) {
 894     case VOCTRL_PAUSE:
 895     case VOCTRL_RESUME:
 896       int_pause = (request == VOCTRL_PAUSE);
 897       return VO_TRUE;
 898     case VOCTRL_QUERY_FORMAT:
 899       return query_format(*((uint32_t*)data));
 900     case VOCTRL_GUISUPPORT:
 901       return VO_TRUE;
 902     case VOCTRL_ONTOP:
 903       glctx.ontop();
 904       return VO_TRUE;
 905     case VOCTRL_FULLSCREEN:
 906       glctx.fullscreen();
 907       if (glctx.setGlWindow(&glctx) == SET_WINDOW_REINIT)
 908         initGl(vo_dwidth, vo_dheight);
 909       resize(vo_dwidth, vo_dheight);
 910       return VO_TRUE;
 911     case VOCTRL_BORDER:
 912       glctx.border();
 913       return VO_TRUE;
 914     case VOCTRL_GET_PANSCAN:
 915       return VO_TRUE;
 916     case VOCTRL_SET_PANSCAN:
 917       resize(vo_dwidth, vo_dheight);
 918       return VO_TRUE;
 919 #ifndef CONFIG_GL_WIN32
 920     case VOCTRL_SET_EQUALIZER:
 921     {
 922       va_list ap;
 923       int value;
 924
 925       va_start(ap, data);
 926       value = va_arg(ap, int);
 927       va_end(ap);
 928       return vo_x11_set_equalizer(data, value);
 929     }
 930     case VOCTRL_GET_EQUALIZER:
 931     {
 932       va_list ap;
 933       int *value;
 934
 935       va_start(ap, data);
 936       value = va_arg(ap, int *);
 937       va_end(ap);
 938       return vo_x11_get_equalizer(data, value);
 939     }
 940 #endif
 941     case VOCTRL_UPDATE_SCREENINFO:
 942       glctx.update_xinerama_info();
 943       return VO_TRUE;
 944   }
 945   return VO_NOTIMPL;
 946 }