libvo/vo_gl2.c

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