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/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   free(texgrid);
 240   texgrid = calloc (texnumx * texnumy, sizeof (struct TexSquare));
 241
 242   raw_line_len = image_width * image_bytes;
 243
 244   mp_msg (MSGT_VO, MSGL_DBG2, "[gl2] texture-usage %d*width=%d, %d*height=%d\n",
 245           (int) texnumx, (int) texture_width, (int) texnumy,
 246           (int) texture_height);
 247
 248   tsq = texgrid;
 249   for (y = 0; y < texnumy; y++) {
 250     for (x = 0; x < texnumx; x++) {
 251       tsq->fx = x * texpercx;
 252       tsq->fy = y * texpercy;
 253       tsq->fw = texpercx;
 254       tsq->fh = texpercy;
 255
 256       tsq->texobj=0;
 257       tsq->uvtexobjs[0] = tsq->uvtexobjs[1] = 0;
 258
 259       glGenTextures (1, &(tsq->texobj));
 260
 261       glBindTexture (GL_TEXTURE_2D, tsq->texobj);
 262       if (is_yuv) {
 263         glGenTextures(2, tsq->uvtexobjs);
 264         mpglActiveTexture(GL_TEXTURE1);
 265         glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[0]);
 266         mpglActiveTexture(GL_TEXTURE2);
 267         glBindTexture (GL_TEXTURE_2D, tsq->uvtexobjs[1]);
 268         mpglActiveTexture(GL_TEXTURE0);
 269       }
 270
 271       glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 272                        texture_width, texture_height, 0);
 273
 274       glTexEnvf (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
 275       if (is_yuv) {
 276         int xs, ys, depth;
 277         int chroma_clear_val = 128;
 278         mp_get_chroma_shift(image_format, &xs, &ys, &depth);
 279         chroma_clear_val >>= -depth & 7;
 280         mpglActiveTexture(GL_TEXTURE1);
 281         glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 282                          texture_width >> xs, texture_height >> ys,
 283                          chroma_clear_val);
 284         mpglActiveTexture(GL_TEXTURE2);
 285         glCreateClearTex(GL_TEXTURE_2D, gl_internal_format, gl_bitmap_format,  gl_bitmap_type, GL_LINEAR,
 286                          texture_width >> xs, texture_height >> ys,
 287                          chroma_clear_val);
 288         mpglActiveTexture(GL_TEXTURE0);
 289       }
 290
 291       tsq++;
 292     }  /* for all texnumx */
 293   }  /* for all texnumy */
 294
 295   return 0;
 296 }
 297
 298 static void resetTexturePointers(unsigned char *imageSource)
 299 {
 300   unsigned char *texdata_start, *line_start;
 301   struct TexSquare *tsq = texgrid;
 302   int x=0, y=0;
 303
 304   line_start = (unsigned char *) imageSource;
 305
 306   for (y = 0; y < texnumy; y++) {
 307     texdata_start = line_start;
 308     for (x = 0; x < texnumx; x++) {
 309       tsq->texture = texdata_start;
 310       texdata_start += texture_width * image_bytes;
 311       tsq++;
 312     }  /* for all texnumx */
 313     line_start += texture_height * raw_line_len;
 314   }  /* for all texnumy */
 315 }
 316
 317 static void gl_set_bilinear (int val)
 318 {
 319   int x, y;
 320
 321   if(val>=0)
 322     gl_bilinear = val;
 323   else
 324     gl_bilinear++;
 325
 326   gl_bilinear=gl_bilinear%2;
 327   /* no mipmap yet .. */
 328
 329   for (y = 0; y < texnumy; y++) {
 330     for (x = 0; x < texnumx; x++) {
 331       glBindTexture (GL_TEXTURE_2D, texgrid[y * texnumx + x].texobj);
 332
 333       switch (gl_bilinear) {
 334         case 0:
 335           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
 336           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
 337           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear off\n");
 338           break;
 339         case 1:
 340           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 341           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 342           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear linear\n");
 343           break;
 344         case 2:
 345           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_NEAREST);
 346           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_NEAREST);
 347           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap nearest\n");
 348           break;
 349         case 3:
 350           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 351           glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 352           mp_msg(MSGT_VO, MSGL_INFO, "[gl2] bilinear mipmap linear\n");
 353           break;
 354       }
 355     }
 356   }
 357 }
 358
 359 static void gl_set_antialias (int val)
 360 {
 361   gl_antialias=val;
 362
 363   if (gl_antialias) {
 364     glShadeModel (GL_SMOOTH);
 365     glEnable (GL_POLYGON_SMOOTH);
 366     glEnable (GL_LINE_SMOOTH);
 367     glEnable (GL_POINT_SMOOTH);
 368     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing on\n");
 369   } else {
 370     glShadeModel (GL_FLAT);
 371     glDisable (GL_POLYGON_SMOOTH);
 372     glDisable (GL_LINE_SMOOTH);
 373     glDisable (GL_POINT_SMOOTH);
 374     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] antialiasing off\n");
 375   }
 376 }
 377
 378
 379 static void drawTextureDisplay (void)
 380 {
 381   struct TexSquare *square = texgrid;
 382   int x, y;
 383
 384   glColor3f(1.0,1.0,1.0);
 385
 386   if (is_yuv)
 387     glEnableYUVConversion(GL_TEXTURE_2D, use_yuv);
 388   for (y = 0; y < texnumy; y++) {
 389     int thish = texture_height;
 390     if (y == texnumy - 1 && image_height % texture_height)
 391       thish = image_height % texture_height;
 392     for (x = 0; x < texnumx; x++) {
 393       int thisw = texture_width;
 394       if (x == texnumx - 1 && image_width % texture_width)
 395         thisw = image_width % texture_width;
 396       glBindTexture (GL_TEXTURE_2D, square->texobj);
 397       if (is_yuv) {
 398         mpglActiveTexture(GL_TEXTURE1);
 399         glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[0]);
 400         mpglActiveTexture(GL_TEXTURE2);
 401         glBindTexture (GL_TEXTURE_2D, square->uvtexobjs[1]);
 402         mpglActiveTexture(GL_TEXTURE0);
 403       }
 404
 405       if (texdirty) {
 406         glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 407                     square->texture, image_width * image_bytes,
 408                     0, 0, thisw, thish, 0);
 409       }
 410
 411       glDrawTex(square->fx, square->fy, square->fw, square->fh,
 412                 0, 0, texture_width, texture_height,
 413                 texture_width, texture_height,
 414                 0, is_yuv, 0);
 415       square++;
 416     } /* for all texnumx */
 417   } /* for all texnumy */
 418   if (is_yuv)
 419     glDisableYUVConversion(GL_TEXTURE_2D, use_yuv);
 420   texdirty = 0;
 421 }
 422
 423
 424 static void resize(int x,int y){
 425   mp_msg(MSGT_VO,MSGL_V,"[gl2] Resize: %dx%d\n",x,y);
 426   if(aspect_scaling()) {
 427     glClear(GL_COLOR_BUFFER_BIT);
 428     aspect(&x, &y, A_WINZOOM);
 429     panscan_calc_windowed();
 430     x += vo_panscan_x;
 431     y += vo_panscan_y;
 432     glViewport( (vo_dwidth-x)/2, (vo_dheight-y)/2, x, y);
 433   } else {
 434     //aspect(x, y, A_NOZOOM);
 435     if (WinID >= 0) {
 436       int left = 0, top = 0, w = x, h = y;
 437       geometry(&left, &top, &w, &h, vo_dwidth, vo_dheight);
 438       top = y - h - top;
 439       glViewport(left, top, 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 #endif
 481
 482 #ifdef CONFIG_GL_X11
 483 static int choose_glx_visual(Display *dpy, int scr, XVisualInfo *res_vi)
 484 {
 485   XVisualInfo template, *vi_list;
 486   int vi_num, i, best_i, best_weight;
 487
 488   template.screen = scr;
 489   vi_list = XGetVisualInfo(dpy, VisualScreenMask, &template, &vi_num);
 490   if (!vi_list) return -1;
 491   best_weight = 1000000; best_i=0;
 492   for (i = 0; i < vi_num; i++) {
 493     int val, res, w = 0;
 494     /* of course, the visual must support OpenGL rendering... */
 495     res = glXGetConfig(dpy, vi_list + i, GLX_USE_GL, &val);
 496     if (res || val == False) continue;
 497     /* also it must be doublebuffered ... */
 498     res = glXGetConfig(dpy, vi_list + i, GLX_DOUBLEBUFFER, &val);
 499     if (res || val == False) continue;
 500     /* furthermore it must be RGBA (not color indexed) ... */
 501     res = glXGetConfig(dpy, vi_list + i, GLX_RGBA, &val);
 502     if (res || val == False) continue;
 503     /* prefer less depth buffer size, */
 504     res = glXGetConfig(dpy, vi_list + i, GLX_DEPTH_SIZE, &val);
 505     if (res) continue;
 506     w += val*2;
 507     /* stencil buffer size */
 508     res = glXGetConfig(dpy, vi_list + i, GLX_STENCIL_SIZE, &val);
 509     if (res) continue;
 510     w += val*2;
 511     /* and colorbuffer alpha size */
 512     res = glXGetConfig(dpy, vi_list + i, GLX_ALPHA_SIZE, &val);
 513     if (res) continue;
 514     w += val;
 515     /* and finally, prefer DirectColor-ed visuals to allow color corrections */
 516     if (vi_list[i].class != DirectColor) w += 100;
 517
 518     // avoid bad-looking visual with less that 8bit per color
 519     res = glXGetConfig(dpy, vi_list + i, GLX_RED_SIZE, &val);
 520     if (res) continue;
 521     if (val < 8) w += 50;
 522     res = glXGetConfig(dpy, vi_list + i, GLX_GREEN_SIZE, &val);
 523     if (res) continue;
 524     if (val < 8) w += 70;
 525     res = glXGetConfig(dpy, vi_list + i, GLX_BLUE_SIZE, &val);
 526     if (res) continue;
 527     if (val < 8) w += 50;
 528
 529     if (w < best_weight) {
 530       best_weight = w;
 531       best_i = i;
 532     }
 533   }
 534   if (best_weight < 1000000) *res_vi = vi_list[best_i];
 535   XFree(vi_list);
 536   return (best_weight < 1000000) ? 0 : -1;
 537 }
 538
 539 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) {
 540   XVisualInfo *vinfo, vinfo_buf;
 541     vinfo = choose_glx_visual(mDisplay,mScreen,&vinfo_buf) < 0 ? NULL : &vinfo_buf;
 542     if (vinfo == NULL) {
 543       mp_msg(MSGT_VO, MSGL_FATAL, "[gl2] no GLX support present\n");
 544       return -1;
 545     }
 546
 547   vo_x11_create_vo_window(vinfo, vo_dx, vo_dy, d_width, d_height,
 548           flags, vo_x11_create_colormap(vinfo), "gl2", title);
 549
 550   return 0;
 551 }
 552 #endif
 553
 554 static int initGl(uint32_t d_width, uint32_t d_height)
 555 {
 556   fragprog = lookupTex = 0;
 557   if (initTextures() < 0)
 558     return -1;
 559
 560   glDisable(GL_BLEND);
 561   glDisable(GL_DEPTH_TEST);
 562   glDepthMask(GL_FALSE);
 563   glDisable(GL_CULL_FACE);
 564   glEnable (GL_TEXTURE_2D);
 565   if (is_yuv) {
 566     int xs, ys, depth;
 567     gl_conversion_params_t params = {GL_TEXTURE_2D, use_yuv,
 568           {-1, -1, 0.0, 1.0, 0.0, 1.0, 1.0, 1.0, 1.0},
 569           texture_width, texture_height, 0, 0, 0};
 570     switch (use_yuv) {
 571       case YUV_CONVERSION_FRAGMENT_LOOKUP:
 572         glGenTextures(1, &lookupTex);
 573         mpglActiveTexture(GL_TEXTURE3);
 574         glBindTexture(GL_TEXTURE_2D, lookupTex);
 575         mpglActiveTexture(GL_TEXTURE0);
 576         glBindTexture(GL_TEXTURE_2D, 0);
 577       case YUV_CONVERSION_FRAGMENT_POW:
 578       case YUV_CONVERSION_FRAGMENT:
 579         if (!mpglGenPrograms || !mpglBindProgram) {
 580           mp_msg(MSGT_VO, MSGL_ERR, "[gl] fragment program functions missing!\n");
 581           break;
 582         }
 583         mpglGenPrograms(1, &fragprog);
 584         mpglBindProgram(GL_FRAGMENT_PROGRAM, fragprog);
 585         break;
 586     }
 587     mp_get_chroma_shift(image_format, &xs, &ys, &depth);
 588     params.chrom_texw = params.texw >> xs;
 589     params.chrom_texh = params.texh >> ys;
 590     params.csp_params.input_shift = -depth & 7;
 591     glSetupYUVConversion(&params);
 592   }
 593
 594   gl_set_antialias(0);
 595   gl_set_bilinear(1);
 596
 597   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",
 598         image_bpp, image_bytes,
 599         glValName(gl_bitmap_format), glValName(gl_bitmap_type),
 600         rgb_sz, r_sz, g_sz, b_sz, a_sz, glValName(gl_internal_format));
 601
 602   resize(d_width, d_height);
 603
 604   glClearColor( 0.0f,0.0f,0.0f,0.0f );
 605   glClear( GL_COLOR_BUFFER_BIT );
 606
 607   drawTextureDisplay ();
 608
 609   return 0;
 610 }
 611
 612 /* connect to server, create and map window,
 613  * allocate colors and (shared) memory
 614  */
 615 static int
 616 config(uint32_t width, uint32_t height, uint32_t d_width, uint32_t d_height, uint32_t flags, char *title, uint32_t format)
 617 {
 618   int xs, ys;
 619   const unsigned char * glVersion;
 620
 621   image_height = height;
 622   image_width = width;
 623   image_format = format;
 624   is_yuv = mp_get_chroma_shift(image_format, &xs, &ys, NULL) > 0;
 625   is_yuv |= (xs << 8) | (ys << 16);
 626
 627 #ifdef CONFIG_GL_WIN32
 628   if (config_w32(width, height, d_width, d_height, flags, title, format) == -1)
 629 #endif
 630 #ifdef CONFIG_GL_X11
 631   if (config_glx(width, height, d_width, d_height, flags, title, format) == -1)
 632 #endif
 633     return -1;
 634
 635   if (glctx.setGlWindow(&glctx) == SET_WINDOW_FAILED)
 636     return -1;
 637
 638   glVersion = glGetString(GL_VERSION);
 639
 640   mp_msg(MSGT_VO, MSGL_V, "[gl2] OpenGL Driver Information:\n");
 641   mp_msg(MSGT_VO, MSGL_V, "\tvendor: %s,\n\trenderer %s,\n\tversion %s\n",
 642          glGetString(GL_VENDOR), glGetString(GL_RENDERER), glVersion);
 643
 644   if(glVersion[0]>'1' || (glVersion[0]=='1' && glVersion[2]>='2') )
 645     isGL12 = GL_TRUE;
 646   else
 647     isGL12 = GL_FALSE;
 648
 649   if(isGL12) {
 650     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL >= 1.2 capable drivers, GOOD (16bpp and BGR is ok!)\n");
 651   } else {
 652     mp_msg(MSGT_VO, MSGL_INFO, "[gl2] You have OpenGL < 1.2 drivers, BAD (16bpp and BGR may be damaged!)\n");
 653   }
 654
 655   glFindFormat(format, &image_bpp, &gl_internal_format, &gl_bitmap_format, &gl_bitmap_type);
 656
 657   image_bytes=(image_bpp+7)/8;
 658
 659   draw_alpha_fnc=draw_alpha_null;
 660
 661   switch(image_bpp) {
 662     case 15:
 663       draw_alpha_fnc=draw_alpha_15; break;
 664     case 16:
 665       draw_alpha_fnc=draw_alpha_16; break;
 666     case 24:
 667       draw_alpha_fnc=draw_alpha_24; break;
 668     case 32:
 669       draw_alpha_fnc=draw_alpha_32; break;
 670   }
 671
 672   if (initGl(vo_dwidth, vo_dheight) == -1)
 673     return -1;
 674
 675   return 0;
 676 }
 677
 678 #ifdef CONFIG_GL_X11
 679 static int gl_handlekey(int key)
 680 {
 681   if(key=='a'||key=='A') {
 682     gl_set_antialias(!gl_antialias);
 683     return 0;
 684   } else if(key=='b'||key=='B') {
 685     gl_set_bilinear(-1);
 686     return 0;
 687   }
 688   return 1;
 689 }
 690 #endif
 691
 692 static void check_events(void)
 693 {
 694   int e;
 695 #ifdef CONFIG_GL_X11
 696   XEvent         Event;
 697   char           buf[100];
 698   KeySym         keySym;
 699   int            key;
 700   static XComposeStatus stat;
 701
 702   while ( XPending( mDisplay ) ) {
 703     XNextEvent( mDisplay,&Event );
 704     if( Event.type == KeyPress ) {
 705       XLookupString( &Event.xkey,buf,sizeof(buf),&keySym,&stat );
 706       key = (keySym&0xff00) != 0 ? (keySym&0x00ff) + 256 : keySym;
 707       if(gl_handlekey(key))
 708         XPutBackEvent(mDisplay, &Event);
 709       break;
 710     } else {
 711       XPutBackEvent(mDisplay, &Event);
 712       break;
 713     }
 714   }
 715 #endif
 716   e=glctx.check_events();
 717   if(e&VO_EVENT_RESIZE) resize(vo_dwidth, vo_dheight);
 718   if(e&VO_EVENT_EXPOSE && int_pause) flip_page();
 719 }
 720
 721 static void draw_osd(void)
 722 {
 723   if (ImageData)
 724     vo_draw_text(image_width,image_height,draw_alpha_fnc);
 725 }
 726
 727 static void
 728 flip_page(void)
 729 {
 730   drawTextureDisplay();
 731
 732 //  glFlush();
 733   if (use_glFinish)
 734   glFinish();
 735   glctx.swapGlBuffers(&glctx);
 736
 737   if (aspect_scaling()) // Avoid flickering borders in fullscreen mode
 738     glClear (GL_COLOR_BUFFER_BIT);
 739 }
 740
 741 static int draw_slice(uint8_t *src[], int stride[], int w,int h,int x,int y)
 742 {
 743   uint8_t *yptr = src[0], *uptr = src[1], *vptr = src[2];
 744   int ystride = stride[0], ustride = stride[1], vstride = stride[2];
 745   int rem_h = h;
 746   struct TexSquare *texline = &texgrid[y / texture_height * texnumx];
 747   int subtex_y = y % texture_width;
 748   int xs, ys;
 749   mp_get_chroma_shift(image_format, &xs, &ys, NULL);
 750   while (rem_h > 0) {
 751     int rem_w = w;
 752     struct TexSquare *tsq = &texline[x / texture_width];
 753     int subtex_x = x % texture_height;
 754     int subtex_h = rem_h;
 755     if (subtex_y + subtex_h > texture_height)
 756       subtex_h = texture_height - subtex_y;
 757     while (rem_w > 0) {
 758       int subtex_w = rem_w;
 759       if (subtex_x + subtex_w > texture_width)
 760         subtex_w = texture_width - subtex_x;
 761       mpglActiveTexture(GL_TEXTURE0);
 762       glBindTexture(GL_TEXTURE_2D, tsq->texobj);
 763       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 764                   yptr, ystride, subtex_x, subtex_y,
 765                   subtex_w, subtex_h, 0);
 766       mpglActiveTexture(GL_TEXTURE1);
 767       glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[0]);
 768       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 769                   uptr, ustride, subtex_x >> xs, subtex_y >> ys,
 770                   subtex_w >> xs, subtex_h >> ys, 0);
 771       mpglActiveTexture(GL_TEXTURE2);
 772       glBindTexture(GL_TEXTURE_2D, tsq->uvtexobjs[1]);
 773       glUploadTex(GL_TEXTURE_2D, gl_bitmap_format,  gl_bitmap_type,
 774                   vptr, vstride, subtex_x >> xs, subtex_y >> ys,
 775                   subtex_w >> xs, subtex_h >> ys, 0);
 776       subtex_x = 0;
 777       yptr += subtex_w;
 778       uptr += subtex_w >> xs;
 779       vptr += subtex_w >> xs;
 780       tsq++;
 781       rem_w -= subtex_w;
 782     }
 783     subtex_y = 0;
 784     yptr += subtex_h * ystride - w;
 785     uptr += (subtex_h >> ys) * ustride - (w >> xs);
 786     vptr += (subtex_h >> ys) * vstride - (w >> xs);
 787     texline += texnumx;
 788     rem_h -= subtex_h;
 789   }
 790   mpglActiveTexture(GL_TEXTURE0);
 791     return 0;
 792 }
 793
 794 static int
 795 draw_frame(uint8_t *src[])
 796 {
 797   if (is_yuv) {
 798     mp_msg(MSGT_VO, MSGL_ERR, "[gl2] error: draw_frame called for YV12!\n");
 799     return 0;
 800   }
 801   ImageData=(unsigned char *)src[0];
 802   resetTexturePointers(ImageData);
 803   texdirty = 1;
 804   return 0;
 805 }
 806
 807 static int
 808 query_format(uint32_t format)
 809 {
 810   int depth;
 811   if (use_yuv && mp_get_chroma_shift(format, NULL, NULL, &depth) &&
 812       (depth == 8 || depth == 16 || glYUVLargeRange(use_yuv)) &&
 813       (IMGFMT_IS_YUVP16_NE(format) || !IMGFMT_IS_YUVP16(format)))
 814     return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD |
 815            VFCAP_HWSCALE_UP | VFCAP_HWSCALE_DOWN | VFCAP_ACCEPT_STRIDE;
 816   switch(format) {
 817 #ifdef __APPLE__
 818     case IMGFMT_RGB32:
 819 #else
 820     case IMGFMT_RGB24:
 821     case IMGFMT_BGR24:
 822 //    case IMGFMT_RGB32:
 823 //    case IMGFMT_BGR32:
 824 #endif
 825         return VFCAP_CSP_SUPPORTED | VFCAP_CSP_SUPPORTED_BY_HW | VFCAP_OSD;
 826   }
 827   return 0;
 828 }
 829
 830
 831 static void
 832 uninit(void)
 833 {
 834   if ( !vo_config_count ) return;
 835   free(texgrid);
 836   texgrid = NULL;
 837   uninit_mpglcontext(&glctx);
 838 }
 839
 840 static const opt_t subopts[] = {
 841   {"yuv",          OPT_ARG_INT,  &use_yuv,      int_non_neg},
 842   {"glfinish",     OPT_ARG_BOOL, &use_glFinish, NULL},
 843   {NULL}
 844 };
 845
 846 static int preinit(const char *arg)
 847 {
 848   enum MPGLType gltype = GLTYPE_X11;
 849   // set defaults
 850 #ifdef CONFIG_GL_WIN32
 851   gltype = GLTYPE_W32;
 852 #endif
 853   use_yuv = -1;
 854   use_glFinish = 1;
 855   if (subopt_parse(arg, subopts) != 0) {
 856     mp_msg(MSGT_VO, MSGL_FATAL,
 857             "\n-vo gl2 command line help:\n"
 858             "Example: mplayer -vo gl2:noglfinish\n"
 859             "\nOptions:\n"
 860             "  noglfinish\n"
 861             "    Do not call glFinish() before swapping buffers\n"
 862             "  yuv=<n>\n"
 863             "    0: use software YUV to RGB conversion.\n"
 864             "    1: use register combiners (nVidia only, for older cards).\n"
 865             "    2: use fragment program.\n"
 866             "    3: use fragment program with gamma correction.\n"
 867             "    4: use fragment program with gamma correction via lookup.\n"
 868             "    5: use ATI-specific method (for older cards).\n"
 869             "\n" );
 870     return -1;
 871   }
 872     if(!init_mpglcontext(&glctx, gltype)) goto err_out;
 873     if (use_yuv == -1) {
 874 #ifdef CONFIG_GL_WIN32
 875       if (config_w32(320, 200, 320, 200, VOFLAG_HIDDEN, "", 0) == -1)
 876 #endif
 877 #ifdef CONFIG_GL_X11
 878       if (config_glx(320, 200, 320, 200, VOFLAG_HIDDEN, "", 0) == -1)
 879 #endif
 880         goto err_out;
 881       if (glctx.setGlWindow(&glctx) == SET_WINDOW_FAILED)
 882         goto err_out;
 883       use_yuv = glAutodetectYUVConversion();
 884     }
 885     return 0;
 886
 887 err_out:
 888     uninit();
 889     return -1;
 890 }
 891
 892 static int control(uint32_t request, void *data)
 893 {
 894   switch (request) {
 895     case VOCTRL_PAUSE:
 896     case VOCTRL_RESUME:
 897       int_pause = (request == VOCTRL_PAUSE);
 898       return VO_TRUE;
 899     case VOCTRL_QUERY_FORMAT:
 900       return query_format(*((uint32_t*)data));
 901     case VOCTRL_ONTOP:
 902       glctx.ontop();
 903       return VO_TRUE;
 904     case VOCTRL_FULLSCREEN:
 905       glctx.fullscreen();
 906       if (glctx.setGlWindow(&glctx) == SET_WINDOW_REINIT)
 907         initGl(vo_dwidth, vo_dheight);
 908       resize(vo_dwidth, vo_dheight);
 909       return VO_TRUE;
 910     case VOCTRL_BORDER:
 911       glctx.border();
 912       return VO_TRUE;
 913     case VOCTRL_GET_PANSCAN:
 914       return VO_TRUE;
 915     case VOCTRL_SET_PANSCAN:
 916       resize(vo_dwidth, vo_dheight);
 917       return VO_TRUE;
 918 #ifdef CONFIG_GL_X11
 919     case VOCTRL_SET_EQUALIZER:
 920     {
 921       struct voctrl_set_equalizer_args *args = data;
 922       return vo_x11_set_equalizer(args->name, args->value);
 923     }
 924     case VOCTRL_GET_EQUALIZER:
 925     {
 926       struct voctrl_get_equalizer_args *args = data;
 927       return vo_x11_get_equalizer(args->name, args->valueptr);
 928     }
 929 #endif
 930     case VOCTRL_UPDATE_SCREENINFO:
 931       glctx.update_xinerama_info();
 932       return VO_TRUE;
 933   }
 934   return VO_NOTIMPL;
 935 }