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 static MPGLContext glctx;
  63
  64 static uint32_t image_width;
  65 static uint32_t image_height;
  66 static uint32_t image_format;
  67 static uint32_t image_bpp;
  68 static uint32_t image_bytes;
  69
  70 static int int_pause;
  71
  72 static uint32_t texture_width;
  73 static uint32_t texture_height;
  74 static int texnumx, texnumy, raw_line_len;
  75 static int texdirty;
  76 static struct TexSquare * texgrid = NULL;
  77 static GLuint   fragprog;
  78 static GLuint   lookupTex;
  79 static GLint    gl_internal_format;
  80 static int      rgb_sz, r_sz, g_sz, b_sz, a_sz;
  81 static GLenum   gl_bitmap_format;
  82 static GLenum   gl_bitmap_type;
  83 static int      isGL12 = GL_FALSE;
  84
  85 static int      gl_bilinear=1;
  86 static int      gl_antialias=0;
  87 static int      use_yuv;
  88 static int      is_yuv;
  89 static int      use_glFinish;
  90
  91 static void (*draw_alpha_fnc)
  92                  (int x0,int y0, int w,int h, unsigned char* src, unsigned char *srca, int stride);
  93
  94
  95 /* The squares that are tiled to make up the game screen polygon */
  96
  97 struct TexSquare
  98 {
  99   GLubyte *texture;
 100   GLuint texobj;
 101   GLuint uvtexobjs[2];
 102   GLfloat fx, fy, fw, fh;
 103 };
 104
 105 static GLint getInternalFormat(void)
 106 {
 107   switch (glctx.type) {
 108 #ifdef CONFIG_GL_WIN32
 109   case GLTYPE_W32:
 110   {
 111   PIXELFORMATDESCRIPTOR pfd;
 112   HDC vo_hdc = vo_w32_get_dc(vo_w32_window);
 113   int pf = GetPixelFormat(vo_hdc);
 114   if (!DescribePixelFormat(vo_hdc, pf, sizeof pfd, &pfd)) {
 115     r_sz = g_sz = b_sz = a_sz = 0;
 116   } else {
 117     r_sz = pfd.cRedBits;
 118     g_sz = pfd.cGreenBits;
 119     b_sz = pfd.cBlueBits;
 120     a_sz = pfd.cAlphaBits;
 121   }
 122   vo_w32_release_dc(vo_w32_window, vo_hdc);
 123   }
 124   break;
 125 #endif
 126 #ifdef CONFIG_GL_X11
 127   case GLTYPE_X11:
 128   if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_RED_SIZE, &r_sz) != 0) r_sz = 0;
 129   if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_GREEN_SIZE, &g_sz) != 0) g_sz = 0;
 130   if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_BLUE_SIZE, &b_sz) != 0) b_sz = 0;
 131   if (glXGetConfig(mDisplay, glctx.vinfo.x11, GLX_ALPHA_SIZE, &a_sz) != 0) a_sz = 0;
 132   break;
 133 #endif
 134   }
 135
 136   rgb_sz=r_sz+g_sz+b_sz;
 137   if(rgb_sz<=0) rgb_sz=24;
 138
 139 #ifdef TEXTUREFORMAT_ALWAYS
 140   return TEXTUREFORMAT_ALWAYS;
 141 #else
 142   if(r_sz==3 && g_sz==3 && b_sz==2 && a_sz==0)
 143     return GL_R3_G3_B2;
 144   if(r_sz==4 && g_sz==4 && b_sz==4 && a_sz==0)
 145     return GL_RGB4;
 146   if(r_sz==5 && g_sz==5 && b_sz==5 && a_sz==0)
 147     return GL_RGB5;
 148   if(r_sz==8 && g_sz==8 && b_sz==8 && a_sz==0)
 149     return GL_RGB8;
 150   if(r_sz==10 && g_sz==10 && b_sz==10 && a_sz==0)
 151     return GL_RGB10;
 152   if(r_sz==2 && g_sz==2 && b_sz==2 && a_sz==2)
 153     return GL_RGBA2;
 154   if(r_sz==4 && g_sz==4 && b_sz==4 && a_sz==4)
 155     return GL_RGBA4;
 156   if(r_sz==5 && g_sz==5 && b_sz==5 && a_sz==1)
 157     return GL_RGB5_A1;
 158   if(r_sz==8 && g_sz==8 && b_sz==8 && a_sz==8)
 159     return GL_RGBA8;
 160   if(r_sz==10 && g_sz==10 && b_sz==10 && a_sz==2)
 161     return GL_RGB10_A2;
 162 #endif
 163   return GL_RGB;
 164 }
 165
 166 static int initTextures(void)
 167 {
 168   struct TexSquare *tsq=0;
 169   GLfloat texpercx, texpercy;
 170   int s;
 171   int x=0, y=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 (!is_yuv)
 185     gl_internal_format = getInternalFormat();
 186
 187   /* Test the max texture size */
 188   do {
 189     GLint w;
 190     glTexImage2D (GL_PROXY_TEXTURE_2D, 0,
 191                   gl_internal_format,
 192                   texture_width, texture_height,
 193                   0, gl_bitmap_format, gl_bitmap_type, NULL);
 194
 195     glGetTexLevelParameteriv
 196       (GL_PROXY_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &w);
 197
 198     if (w >= texture_width)
 199       break;
 200
 201     mp_msg (MSGT_VO, MSGL_V, "[gl2] Needed texture [%dx%d] too big, trying ",
 202             texture_width, texture_height);
 203
 204     if (texture_width > texture_height)
 205       texture_width /= 2;
 206     else
 207       texture_height /= 2;
 208
 209     mp_msg (MSGT_VO, MSGL_V, "[%dx%d] !\n", texture_width, texture_height);
 210
 211     if(texture_width < 64 || texture_height < 64) {
 212       mp_msg (MSGT_VO, MSGL_FATAL, "[gl2] Give up .. usable texture size not available, or texture config error !\n");
 213       return -1;
 214     }
 215   } while (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 (is_yuv) {
 264         glGenTextures(2, tsq->uvtexobjs);
 265         mpglActiveTexture(GL_TEXTURE1);
 266         glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[0]);
 267         mpglActiveTexture(GL_TEXTURE2);
 268         glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[1]);
 269         mpglActiveTexture(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 (is_yuv) {
 277         int xs, ys;
 278         mp_get_chroma_shift(image_format, &xs, &ys);
 279         mpglActiveTexture(GL_TEXTURE1);
 280         glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 281                          texture_width >> xs, texture_height >> ys, 128);
 282         mpglActiveTexture(GL_TEXTURE2);
 283         glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 284                          texture_width >> xs, texture_height >> ys, 128);
 285         mpglActiveTexture(GL_TEXTURE0);
 286       }
 287
 288       tsq++;
 289     }  /* for all texnumx */
 290   }  /* for all texnumy */
 291
 292   return 0;
 293 }
 294
 295 static void resetTexturePointers(unsigned char *imageSource)
 296 {
 297   unsigned char *texdata_start, *line_start;
 298   struct TexSquare *tsq = texgrid;
 299   int x=0, y=0;
 300
 301   line_start = (unsigned char *) imageSource;
 302
 303   for (y = 0; y < texnumy; y++) {
 304     texdata_start = line_start;
 305     for (x = 0; x < texnumx; x++) {
 306       tsq->texture = texdata_start;
 307       texdata_start += texture_width * image_bytes;
 308       tsq++;
 309     }  /* for all texnumx */
 310     line_start += texture_height * raw_line_len;
 311   }  /* for all texnumy */
 312 }
 313
 314 static void gl_set_bilinear (int val)
 315 {
 316   int x, y;
 317
 318   if(val>=0)
 319     gl_bilinear = val;
 320   else
 321     gl_bilinear++;
 322
 323   gl_bilinear=gl_bilinear%2;
 324   /* no mipmap yet .. */
 325
 326   for (y = 0; y < texnumy; y++) {
 327     for (x = 0; x < texnumx; x++) {
 328       glBindTexture (GL_TEXTURE_2D, texgrid[y * texnumx + x].texobj);
 329
 330       switch (gl_bilinear) {
 331         case 0:
 332           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 333           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 334           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear off\n");
 335           break;
 336         case 1:
 337           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 338           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 339           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear linear\n");
 340           break;
 341         case 2:
 342           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
 343           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
 344           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap nearest\n");
 345           break;
 346         case 3:
 347           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 348           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 349           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap linear\n");
 350           break;
 351       }
 352     }
 353   }
 354 }
 355
 356 static void gl_set_antialias (int val)
 357 {
 358   gl_antialias=val;
 359
 360   if (gl_antialias) {
 361     glShadeModel (GL_SMOOTH);
 362     glEnable (GL_POLYGON_SMOOTH);
 363     glEnable (GL_LINE_SMOOTH);
 364     glEnable (GL_POINT_SMOOTH);
 365     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing on\n");
 366   } else {
 367     glShadeModel (GL_FLAT);
 368     glDisable (GL_POLYGON_SMOOTH);
 369     glDisable (GL_LINE_SMOOTH);
 370     glDisable (GL_POINT_SMOOTH);
 371     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing off\n");
 372   }
 373 }
 374
 375
 376 static void drawTextureDisplay (void)
 377 {
 378   struct TexSquare *square = texgrid;
 379   int x, y;
 380
 381   glColor3f(1.0,1.0,1.0);
 382
 383   if (is_yuv)
 384     glEnableYUVConversion(GL_TEXTURE_2D, use_yuv);
 385   for (y = 0; y < texnumy; y++) {
 386     int thish = texture_height;
 387     if (y == texnumy - 1 && image_height % texture_height)
 388       thish = image_height % texture_height;
 389     for (x = 0; x < texnumx; x++) {
 390       int thisw = texture_width;
 391       if (x == texnumx - 1 && image_width % texture_width)
 392         thisw = image_width % texture_width;
 393       glBindTexture (GL_TEXTURE_2D, square->texobj);
 394       if (is_yuv) {
 395         mpglActiveTexture(GL_TEXTURE1);
 396         glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[0]);
 397         mpglActiveTexture(GL_TEXTURE2);
 398         glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[1]);
 399         mpglActiveTexture(GL_TEXTURE0);
 400       }
 401
 402       if (texdirty) {
 403         glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 404                     square->texture, image_width * image_bytes,
 405                     0, 0, thisw, thish, 0);
 406       }
 407
 408       glDrawTex(square->fx, square->fy, square->fw, square->fh,
 409                 0, 0, texture_width, texture_height,
 410                 texture_width, texture_height,
 411                 0, is_yuv, 0);
 412       square++;
 413     } /* for all texnumx */
 414   } /* for all texnumy */
 415   if (is_yuv)
 416     glDisableYUVConversion(GL_TEXTURE_2D, use_yuv);
 417   texdirty = 0;
 418 }
 419
 420
 421 static void resize(int x,int y){
 422   mp_msg(MSGT_VO,MSGL_V,"[gl2] Resize: %dx%d\n",x,y);
 423   if(aspect_scaling()) {
 424     glClear(GL_COLOR_BUFFER_BIT);
 425     aspect(&x, &y, A_WINZOOM);
 426     panscan_calc_windowed();
 427     x += vo_panscan_x;
 428     y += vo_panscan_y;
 429     glViewport( (vo_dwidth-x)/2, (vo_dheight-y)/2, x, y);
 430   } else {
 431     //aspect(x, y, A_NOZOOM);
 432     if (WinID >= 0) {
 433       int left = 0, top = 0, w = x, h = y;
 434       geometry(&left, &top, &w, &h, vo_dwidth, vo_dheight);
 435       top = y - h - top;
 436       glViewport(left, top, 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 CONFIG_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   return 0;
 475 }
 476
 477 #endif
 478
 479 #ifdef CONFIG_GL_X11
 480 static int choose_glx_visual(Display *dpy, int scr, XVisualInfo *res_vi)
 481 {
 482   XVisualInfo template, *vi_list;
 483   int vi_num, i, best_i, best_weight;
 484
 485   template.screen = scr;
 486   vi_list = XGetVisualInfo(dpy, VisualScreenMask, &template, &vi_num);
 487   if (!vi_list) return -1;
 488   best_weight = 1000000; best_i=0;
 489   for (i = 0; i < vi_num; i++) {
 490     int val, res, w = 0;
 491     /* of course, the visual must support OpenGL rendering... */
 492     res = glXGetConfig(dpy, vi_list + i, GLX_USE_GL, &val);
 493     if (res || val == False) continue;
 494     /* also it must be doublebuffered ... */
 495     res = glXGetConfig(dpy, vi_list + i, GLX_DOUBLEBUFFER, &val);
 496     if (res || val == False) continue;
 497     /* furthermore it must be RGBA (not color indexed) ... */
 498     res = glXGetConfig(dpy, vi_list + i, GLX_RGBA, &val);
 499     if (res || val == False) continue;
 500     /* prefer less depth buffer size, */
 501     res = glXGetConfig(dpy, vi_list + i, GLX_DEPTH_SIZE, &val);
 502     if (res) continue;
 503     w += val*2;
 504     /* stencil buffer size */
 505     res = glXGetConfig(dpy, vi_list + i, GLX_STENCIL_SIZE, &val);
 506     if (res) continue;
 507     w += val*2;
 508     /* and colorbuffer alpha size */
 509     res = glXGetConfig(dpy, vi_list + i, GLX_ALPHA_SIZE, &val);
 510     if (res) continue;
 511     w += val;
 512     /* and finally, prefer DirectColor-ed visuals to allow color corrections */
 513     if (vi_list[i].class != DirectColor) w += 100;
 514
 515     // avoid bad-looking visual with less that 8bit per color
 516     res = glXGetConfig(dpy, vi_list + i, GLX_RED_SIZE, &val);
 517     if (res) continue;
 518     if (val < 8) w += 50;
 519     res = glXGetConfig(dpy, vi_list + i, GLX_GREEN_SIZE, &val);
 520     if (res) continue;
 521     if (val < 8) w += 70;
 522     res = glXGetConfig(dpy, vi_list + i, GLX_BLUE_SIZE, &val);
 523     if (res) continue;
 524     if (val < 8) w += 50;
 525
 526     if (w < best_weight) {
 527       best_weight = w;
 528       best_i = i;
 529     }
 530   }
 531   if (best_weight < 1000000) *res_vi = vi_list[best_i];
 532   XFree(vi_list);
 533   return (best_weight < 1000000) ? 0 : -1;
 534 }
 535
 536 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) {
 537   XVisualInfo *vinfo, vinfo_buf;
 538     vinfo = choose_glx_visual(mDisplay,mScreen,&vinfo_buf) < 0 ? NULL : &vinfo_buf;
 539     if (vinfo == NULL) {
 540       mp_msg(MSGT_VO, MSGL_FATAL, "[gl2] no GLX support present\n");
 541       return -1;
 542     }
 543
 544   vo_x11_create_vo_window(vinfo, vo_dx, vo_dy, d_width, d_height,
 545           flags, vo_x11_create_colormap(vinfo), "gl2", title);
 546
 547   return 0;
 548 }
 549 #endif
 550
 551 static int initGl(uint32_t d_width, uint32_t d_height)
 552 {
 553   fragprog = lookupTex = 0;
 554   if (initTextures() < 0)
 555     return -1;
 556
 557   glDisable(GL_BLEND);
 558   glDisable(GL_DEPTH_TEST);
 559   glDepthMask(GL_FALSE);
 560   glDisable(GL_CULL_FACE);
 561   glEnable (GL_TEXTURE_2D);
 562   if (is_yuv) {
 563     int xs, ys;
 564     gl_conversion_params_t params = {GL_TEXTURE_2D, use_yuv,
 565           {-1, -1, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0},
 566           texture_width, texture_height, 0, 0, 0};
 567     switch (use_yuv) {
 568       case YUV_CONVERSION_FRAGMENT_LOOKUP:
 569         glGenTextures(1, &lookupTex);
 570         mpglActiveTexture(GL_TEXTURE3);
 571         glBindTexture(GL_TEXTURE_2D, lookupTex);
 572         mpglActiveTexture(GL_TEXTURE0);
 573         glBindTexture(GL_TEXTURE_2D, 0);
 574       case YUV_CONVERSION_FRAGMENT_POW:
 575       case YUV_CONVERSION_FRAGMENT:
 576         if (!mpglGenPrograms || !mpglBindProgram) {
 577           mp_msg(MSGT_VO, MSGL_ERR, "[gl] fragment program functions missing!\n");
 578           break;
 579         }
 580         mpglGenPrograms(1, &fragprog);
 581         mpglBindProgram(GL_FRAGMENT_PROGRAM, fragprog);
 582         break;
 583     }
 584     mp_get_chroma_shift(image_format, &xs, &ys);
 585     params.chrom_texw = params.texw >> xs;
 586     params.chrom_texh = params.texh >> ys;
 587     glSetupYUVConversion(&params);
 588   }
 589
 590   gl_set_antialias(0);
 591   gl_set_bilinear(1);
 592
 593   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",
 594         image_bpp, image_bytes,
 595         glValName(gl_bitmap_format), glValName(gl_bitmap_type),
 596         rgb_sz, r_sz, g_sz, b_sz, a_sz, glValName(gl_internal_format));
 597
 598   resize(d_width, d_height);
 599
 600   glClearColor( 0.0f,0.0f,0.0f,0.0f );
 601   glClear( GL_COLOR_BUFFER_BIT );
 602
 603   drawTextureDisplay ();
 604
 605   return 0;
 606 }
 607
 608 /* connect to server, create and map window,
 609  * allocate colors and (shared) memory
 610  */
 611 static int
 612 config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
 613 {
 614   int xs, ys;
 615   const unsigned char * glVersion;
 616
 617   image_height = height;
 618   image_width = width;
 619   image_format = format;
 620   is_yuv = mp_get_chroma_shift(image_format, &xs, &ys) > 0;
 621   is_yuv |= (xs << 8) | (ys << 16);
 622
 623 #ifdef CONFIG_GL_WIN32
 624   if (config_w32(width, height, d_width, d_height, flags, title, format) == -1)
 625 #endif
 626 #ifdef CONFIG_GL_X11
 627   if (config_glx(width, height, d_width, d_height, flags, title, format) == -1)
 628 #endif
 629     return -1;
 630
 631   if (glctx.setGlWindow(&glctx) == SET_WINDOW_FAILED)
 632     return -1;
 633
 634   glVersion = glGetString(GL_VERSION);
 635
 636   mp_msg(MSGT_VO, MSGL_V, "[gl2] OpenGL Driver Information:\n");
 637   mp_msg(MSGT_VO, MSGL_V, "\tvendor: %s,\n\trenderer %s,\n\tversion %s\n",
 638          glGetString(GL_VENDOR), glGetString(GL_RENDERER), glVersion);
 639
 640   if(glVersion[0]>'1' || (glVersion[0]=='1' && glVersion[2]>='2') )
 641     isGL12 = GL_TRUE;
 642   else
 643     isGL12 = GL_FALSE;
 644
 645   if(isGL12) {
 646     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL >= 1.2 capable drivers, GOOD (16bpp and BGR is ok!)\n");
 647   } else {
 648     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL < 1.2 drivers, BAD (16bpp and BGR may be damaged!)\n");
 649   }
 650
 651   glFindFormat(format, &image_bpp, &gl_internal_format, &gl_bitmap_format, &gl_bitmap_type);
 652
 653   image_bytes=(image_bpp+7)/8;
 654
 655   draw_alpha_fnc=draw_alpha_null;
 656
 657   switch(image_bpp) {
 658     case 15:
 659       draw_alpha_fnc=draw_alpha_15; break;
 660     case 16:
 661       draw_alpha_fnc=draw_alpha_16; break;
 662     case 24:
 663       draw_alpha_fnc=draw_alpha_24; break;
 664     case 32:
 665       draw_alpha_fnc=draw_alpha_32; break;
 666   }
 667
 668   if (initGl(vo_dwidth, vo_dheight) == -1)
 669     return -1;
 670
 671   return 0;
 672 }
 673
 674 #ifdef CONFIG_GL_X11
 675 static int gl_handlekey(int key)
 676 {
 677   if(key=='a'||key=='A') {
 678     gl_set_antialias(!gl_antialias);
 679     return 0;
 680   } else if(key=='b'||key=='B') {
 681     gl_set_bilinear(-1);
 682     return 0;
 683   }
 684   return 1;
 685 }
 686 #endif
 687
 688 static void check_events(void)
 689 {
 690   int e;
 691 #ifdef CONFIG_GL_X11
 692   XEvent         Event;
 693   char           buf[100];
 694   KeySym         keySym;
 695   int            key;
 696   static XComposeStatus stat;
 697
 698   while ( XPending( mDisplay ) ) {
 699     XNextEvent( mDisplay,&Event );
 700     if( Event.type == KeyPress ) {
 701       XLookupString( &Event.xkey,buf,sizeof(buf),&keySym,&stat );
 702       key = (keySym&0xff00) != 0 ? (keySym&0x00ff) + 256 : keySym;
 703       if(gl_handlekey(key))
 704         XPutBackEvent(mDisplay, &Event);
 705       break;
 706     } else {
 707       XPutBackEvent(mDisplay, &Event);
 708       break;
 709     }
 710   }
 711 #endif
 712   e=glctx.check_events();
 713   if(e&VO_EVENT_RESIZE) resize(vo_dwidth, vo_dheight);
 714   if(e&VO_EVENT_EXPOSE && int_pause) flip_page();
 715 }
 716
 717 static void draw_osd(void)
 718 {
 719   if (ImageData)
 720     vo_draw_text(image_width,image_height,draw_alpha_fnc);
 721 }
 722
 723 static void
 724 flip_page(void)
 725 {
 726   drawTextureDisplay();
 727
 728 //  glFlush();
 729   if (use_glFinish)
 730   glFinish();
 731   glctx.swapGlBuffers(&glctx);
 732
 733   if (aspect_scaling()) // Avoid flickering borders in fullscreen mode
 734     glClear (GL_COLOR_BUFFER_BIT);
 735 }
 736
 737 static int draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
 738 {
 739   uint8_t *yptr = src[0], *uptr = src[1], *vptr = src[2];
 740   int ystride = stride[0], ustride = stride[1], vstride = stride[2];
 741   int rem_h = h;
 742   struct TexSquare *texline = &texgrid[y / texture_height * texnumx];
 743   int subtex_y = y % texture_width;
 744   int xs, ys;
 745   mp_get_chroma_shift(image_format, &xs, &ys);
 746   while (rem_h > 0) {
 747     int rem_w = w;
 748     struct TexSquare *tsq = &texline[x / texture_width];
 749     int subtex_x = x % texture_height;
 750     int subtex_h = rem_h;
 751     if (subtex_y + subtex_h > texture_height)
 752       subtex_h = texture_height - subtex_y;
 753     while (rem_w > 0) {
 754       int subtex_w = rem_w;
 755       if (subtex_x + subtex_w > texture_width)
 756         subtex_w = texture_width - subtex_x;
 757       mpglActiveTexture(GL_TEXTURE0);
 758       glBindTexture(GL_TEXTURE_2D, tsq->texobj);
 759       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 760                   yptr, ystride, subtex_x, subtex_y,
 761                   subtex_w, subtex_h, 0);
 762       mpglActiveTexture(GL_TEXTURE1);
 763       glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[0]);
 764       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 765                   uptr, ustride, subtex_x >> xs, subtex_y >> ys,
 766                   subtex_w >> xs, subtex_h >> ys, 0);
 767       mpglActiveTexture(GL_TEXTURE2);
 768       glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[1]);
 769       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 770                   vptr, vstride, subtex_x >> xs, subtex_y >> ys,
 771                   subtex_w >> xs, subtex_h >> ys, 0);
 772       subtex_x = 0;
 773       yptr += subtex_w;
 774       uptr += subtex_w >> xs;
 775       vptr += subtex_w >> xs;
 776       tsq++;
 777       rem_w -= subtex_w;
 778     }
 779     subtex_y = 0;
 780     yptr += subtex_h * ystride - w;
 781     uptr += (subtex_h >> ys) * ustride - (w >> xs);
 782     vptr += (subtex_h >> ys) * vstride - (w >> xs);
 783     texline += texnumx;
 784     rem_h -= subtex_h;
 785   }
 786   mpglActiveTexture(GL_TEXTURE0);
 787     return 0;
 788 }
 789
 790 static int
 791 draw_frame(uint8_t *src[])
 792 {
 793   if (is_yuv) {
 794     mp_msg(MSGT_VO, MSGL_ERR, "[gl2] error: draw_frame called for YV12!\n");
 795     return 0;
 796   }
 797   ImageData=(unsigned char *)src[0];
 798   resetTexturePointers(ImageData);
 799   texdirty = 1;
 800   return 0;
 801 }
 802
 803 static int
 804 query_format(uint32_t format)
 805 {
 806   if (use_yuv && mp_get_chroma_shift(format, NULL, NULL) &&
 807       (IMGFMT_IS_YUVP16_NE(format) || !IMGFMT_IS_YUVP16(format)))
 808     return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD |
 809            VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN | VFCAP_ACCEPT_STRIDE;
 810   switch(format) {
 811 #ifdef __APPLE__
 812     case IMGFMT_RGB32:
 813 #else
 814     case IMGFMT_RGB24:
 815     case IMGFMT_BGR24:
 816 //    case IMGFMT_RGB32:
 817 //    case IMGFMT_BGR32:
 818 #endif
 819         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD;
 820   }
 821   return 0;
 822 }
 823
 824
 825 static void
 826 uninit(void)
 827 {
 828   if ( !vo_config_count ) return;
 829   if (texgrid) {
 830     free(texgrid);
 831     texgrid = NULL;
 832   }
 833   uninit_mpglcontext(&glctx);
 834 }
 835
 836 static const opt_t subopts[] = {
 837   {"yuv",          OPT_ARG_INT,  &use_yuv,      int_non_neg},
 838   {"glfinish",     OPT_ARG_BOOL, &use_glFinish, NULL},
 839   {NULL}
 840 };
 841
 842 static int preinit(const char *arg)
 843 {
 844   enum MPGLType gltype = GLTYPE_X11;
 845   // set defaults
 846 #ifdef CONFIG_GL_WIN32
 847   gltype = GLTYPE_W32;
 848 #endif
 849   use_yuv = -1;
 850   use_glFinish = 1;
 851   if (subopt_parse(arg, subopts) != 0) {
 852     mp_msg(MSGT_VO, MSGL_FATAL,
 853             "\n-vo gl2 command line help:\n"
 854             "Example: mplayer -vo gl2:noglfinish\n"
 855             "\nOptions:\n"
 856             "  noglfinish\n"
 857             "    Do not call glFinish() before swapping buffers\n"
 858             "  yuv=<n>\n"
 859             "    0: use software YUV to RGB conversion.\n"
 860             "    1: use register combiners (nVidia only, for older cards).\n"
 861             "    2: use fragment program.\n"
 862             "    3: use fragment program with gamma correction.\n"
 863             "    4: use fragment program with gamma correction via lookup.\n"
 864             "    5: use ATI-specific method (for older cards).\n"
 865             "\n" );
 866     return -1;
 867   }
 868     if(!init_mpglcontext(&glctx, gltype)) goto err_out;
 869     if (use_yuv == -1) {
 870 #ifdef CONFIG_GL_WIN32
 871       if (config_w32(320, 200, 320, 200, VOFLAG_HIDDEN, "", 0) == -1)
 872 #endif
 873 #ifdef CONFIG_GL_X11
 874       if (config_glx(320, 200, 320, 200, VOFLAG_HIDDEN, "", 0) == -1)
 875 #endif
 876         goto err_out;
 877       if (glctx.setGlWindow(&glctx) == SET_WINDOW_FAILED)
 878         goto err_out;
 879       use_yuv = glAutodetectYUVConversion();
 880     }
 881     return 0;
 882
 883 err_out:
 884     uninit();
 885     return -1;
 886 }
 887
 888 static int control(uint32_t request, void *data)
 889 {
 890   switch (request) {
 891     case VOCTRL_PAUSE:
 892     case VOCTRL_RESUME:
 893       int_pause = (request == VOCTRL_PAUSE);
 894       return VO_TRUE;
 895     case VOCTRL_QUERY_FORMAT:
 896       return query_format(*((uint32_t*)data));
 897     case VOCTRL_ONTOP:
 898       glctx.ontop();
 899       return VO_TRUE;
 900     case VOCTRL_FULLSCREEN:
 901       glctx.fullscreen();
 902       if (glctx.setGlWindow(&glctx) == SET_WINDOW_REINIT)
 903         initGl(vo_dwidth, vo_dheight);
 904       resize(vo_dwidth, vo_dheight);
 905       return VO_TRUE;
 906     case VOCTRL_BORDER:
 907       glctx.border();
 908       return VO_TRUE;
 909     case VOCTRL_GET_PANSCAN:
 910       return VO_TRUE;
 911     case VOCTRL_SET_PANSCAN:
 912       resize(vo_dwidth, vo_dheight);
 913       return VO_TRUE;
 914 #ifdef CONFIG_GL_X11
 915     case VOCTRL_SET_EQUALIZER:
 916     {
 917       struct voctrl_set_equalizer_args *args = data;
 918       return vo_x11_set_equalizer(args->name, args->value);
 919     }
 920     case VOCTRL_GET_EQUALIZER:
 921     {
 922       struct voctrl_get_equalizer_args *args = data;
 923       return vo_x11_get_equalizer(args->name, args->valueptr);
 924     }
 925 #endif
 926     case VOCTRL_UPDATE_SCREENINFO:
 927       glctx.update_xinerama_info();
 928       return VO_TRUE;
 929   }
 930   return VO_NOTIMPL;
 931 }