Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1 | /* |
| 2 | * Mesa 3-D graphics library |
| 3 | * Version: 7.1 |
| 4 | * |
| 5 | * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. |
| 6 | * |
| 7 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 8 | * copy of this software and associated documentation files (the "Software"), |
| 9 | * to deal in the Software without restriction, including without limitation |
| 10 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 11 | * and/or sell copies of the Software, and to permit persons to whom the |
| 12 | * Software is furnished to do so, subject to the following conditions: |
| 13 | * |
| 14 | * The above copyright notice and this permission notice shall be included |
| 15 | * in all copies or substantial portions of the Software. |
| 16 | * |
| 17 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 18 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 19 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| 20 | * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| 21 | * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| 22 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | /** |
| 26 | * \file xm_api.c |
| 27 | * |
| 28 | * All the XMesa* API functions. |
| 29 | * |
| 30 | * |
| 31 | * NOTES: |
| 32 | * |
| 33 | * The window coordinate system origin (0,0) is in the lower-left corner |
| 34 | * of the window. X11's window coordinate origin is in the upper-left |
| 35 | * corner of the window. Therefore, most drawing functions in this |
| 36 | * file have to flip Y coordinates. |
| 37 | * |
| 38 | * Define USE_XSHM in the Makefile with -DUSE_XSHM if you want to compile |
| 39 | * in support for the MIT Shared Memory extension. If enabled, when you |
| 40 | * use an Ximage for the back buffer in double buffered mode, the "swap" |
| 41 | * operation will be faster. You must also link with -lXext. |
| 42 | * |
| 43 | * Byte swapping: If the Mesa host and the X display use a different |
| 44 | * byte order then there's some trickiness to be aware of when using |
| 45 | * XImages. The byte ordering used for the XImage is that of the X |
| 46 | * display, not the Mesa host. |
| 47 | * The color-to-pixel encoding for True/DirectColor must be done |
| 48 | * according to the display's visual red_mask, green_mask, and blue_mask. |
| 49 | * If XPutPixel is used to put a pixel into an XImage then XPutPixel will |
| 50 | * do byte swapping if needed. If one wants to directly "poke" the pixel |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 51 | * into the XImage's buffer then the pixel must be byte swapped first. |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 52 | * |
| 53 | */ |
| 54 | |
| 55 | #ifdef __CYGWIN__ |
| 56 | #undef WIN32 |
| 57 | #undef __WIN32__ |
| 58 | #endif |
| 59 | |
| 60 | #include "glxheader.h" |
| 61 | #include "GL/xmesa.h" |
| 62 | #include "xmesaP.h" |
Brian | 6f467e5 | 2007-12-11 19:16:26 -0700 | [diff] [blame] | 63 | #include "main/context.h" |
| 64 | #include "main/framebuffer.h" |
| 65 | #include "glapi/glthread.h" |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 66 | |
| 67 | #include "state_tracker/st_public.h" |
| 68 | #include "state_tracker/st_context.h" |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 69 | #include "pipe/p_defines.h" |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 70 | #include "pipe/p_context.h" |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 71 | |
Zack Rusin | c474f1f | 2007-12-11 07:19:11 -0500 | [diff] [blame] | 72 | #include "xm_winsys_aub.h" |
| 73 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 74 | /** |
| 75 | * Global X driver lock |
| 76 | */ |
| 77 | _glthread_Mutex _xmesa_lock; |
| 78 | |
| 79 | |
Zack Rusin | c474f1f | 2007-12-11 07:19:11 -0500 | [diff] [blame] | 80 | int xmesa_mode; |
| 81 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 82 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 83 | /**********************************************************************/ |
| 84 | /***** X Utility Functions *****/ |
| 85 | /**********************************************************************/ |
| 86 | |
| 87 | |
| 88 | /** |
| 89 | * Return the host's byte order as LSBFirst or MSBFirst ala X. |
| 90 | */ |
| 91 | #ifndef XFree86Server |
| 92 | static int host_byte_order( void ) |
| 93 | { |
| 94 | int i = 1; |
| 95 | char *cptr = (char *) &i; |
| 96 | return (*cptr==1) ? LSBFirst : MSBFirst; |
| 97 | } |
| 98 | #endif |
| 99 | |
| 100 | |
| 101 | /** |
| 102 | * Check if the X Shared Memory extension is available. |
| 103 | * Return: 0 = not available |
| 104 | * 1 = shared XImage support available |
| 105 | * 2 = shared Pixmap support available also |
| 106 | */ |
| 107 | static int check_for_xshm( XMesaDisplay *display ) |
| 108 | { |
| 109 | #if defined(USE_XSHM) && !defined(XFree86Server) |
| 110 | int major, minor, ignore; |
| 111 | Bool pixmaps; |
| 112 | |
| 113 | if (XQueryExtension( display, "MIT-SHM", &ignore, &ignore, &ignore )) { |
| 114 | if (XShmQueryVersion( display, &major, &minor, &pixmaps )==True) { |
| 115 | return (pixmaps==True) ? 2 : 1; |
| 116 | } |
| 117 | else { |
| 118 | return 0; |
| 119 | } |
| 120 | } |
| 121 | else { |
| 122 | return 0; |
| 123 | } |
| 124 | #else |
| 125 | /* No XSHM support */ |
| 126 | return 0; |
| 127 | #endif |
| 128 | } |
| 129 | |
| 130 | |
| 131 | /** |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 132 | * Return the true number of bits per pixel for XImages. |
| 133 | * For example, if we request a 24-bit deep visual we may actually need/get |
| 134 | * 32bpp XImages. This function returns the appropriate bpp. |
| 135 | * Input: dpy - the X display |
| 136 | * visinfo - desribes the visual to be used for XImages |
| 137 | * Return: true number of bits per pixel for XImages |
| 138 | */ |
| 139 | static int |
| 140 | bits_per_pixel( XMesaVisual xmv ) |
| 141 | { |
| 142 | #ifdef XFree86Server |
| 143 | const int depth = xmv->nplanes; |
| 144 | int i; |
| 145 | assert(depth > 0); |
| 146 | for (i = 0; i < screenInfo.numPixmapFormats; i++) { |
| 147 | if (screenInfo.formats[i].depth == depth) |
| 148 | return screenInfo.formats[i].bitsPerPixel; |
| 149 | } |
| 150 | return depth; /* should never get here, but this should be safe */ |
| 151 | #else |
| 152 | XMesaDisplay *dpy = xmv->display; |
| 153 | XMesaVisualInfo visinfo = xmv->visinfo; |
| 154 | XMesaImage *img; |
| 155 | int bitsPerPixel; |
| 156 | /* Create a temporary XImage */ |
| 157 | img = XCreateImage( dpy, visinfo->visual, visinfo->depth, |
| 158 | ZPixmap, 0, /*format, offset*/ |
| 159 | (char*) MALLOC(8), /*data*/ |
| 160 | 1, 1, /*width, height*/ |
| 161 | 32, /*bitmap_pad*/ |
| 162 | 0 /*bytes_per_line*/ |
| 163 | ); |
| 164 | assert(img); |
| 165 | /* grab the bits/pixel value */ |
| 166 | bitsPerPixel = img->bits_per_pixel; |
| 167 | /* free the XImage */ |
| 168 | _mesa_free( img->data ); |
| 169 | img->data = NULL; |
| 170 | XMesaDestroyImage( img ); |
| 171 | return bitsPerPixel; |
| 172 | #endif |
| 173 | } |
| 174 | |
| 175 | |
| 176 | |
| 177 | /* |
| 178 | * Determine if a given X window ID is valid (window exists). |
| 179 | * Do this by calling XGetWindowAttributes() for the window and |
| 180 | * checking if we catch an X error. |
| 181 | * Input: dpy - the display |
| 182 | * win - the window to check for existance |
| 183 | * Return: GL_TRUE - window exists |
| 184 | * GL_FALSE - window doesn't exist |
| 185 | */ |
| 186 | #ifndef XFree86Server |
| 187 | static GLboolean WindowExistsFlag; |
| 188 | |
| 189 | static int window_exists_err_handler( XMesaDisplay* dpy, XErrorEvent* xerr ) |
| 190 | { |
| 191 | (void) dpy; |
| 192 | if (xerr->error_code == BadWindow) { |
| 193 | WindowExistsFlag = GL_FALSE; |
| 194 | } |
| 195 | return 0; |
| 196 | } |
| 197 | |
| 198 | static GLboolean window_exists( XMesaDisplay *dpy, Window win ) |
| 199 | { |
| 200 | XWindowAttributes wa; |
| 201 | int (*old_handler)( XMesaDisplay*, XErrorEvent* ); |
| 202 | WindowExistsFlag = GL_TRUE; |
| 203 | old_handler = XSetErrorHandler(window_exists_err_handler); |
| 204 | XGetWindowAttributes( dpy, win, &wa ); /* dummy request */ |
| 205 | XSetErrorHandler(old_handler); |
| 206 | return WindowExistsFlag; |
| 207 | } |
| 208 | |
| 209 | static Status |
Brian | c664302 | 2007-12-19 13:45:00 -0700 | [diff] [blame] | 210 | get_drawable_size( XMesaDisplay *dpy, Drawable d, uint *width, uint *height ) |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 211 | { |
| 212 | Window root; |
| 213 | Status stat; |
| 214 | int xpos, ypos; |
| 215 | unsigned int w, h, bw, depth; |
| 216 | stat = XGetGeometry(dpy, d, &root, &xpos, &ypos, &w, &h, &bw, &depth); |
| 217 | *width = w; |
| 218 | *height = h; |
| 219 | return stat; |
| 220 | } |
| 221 | #endif |
| 222 | |
| 223 | |
| 224 | /** |
| 225 | * Return the size of the window (or pixmap) that corresponds to the |
| 226 | * given XMesaBuffer. |
| 227 | * \param width returns width in pixels |
| 228 | * \param height returns height in pixels |
| 229 | */ |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 230 | static void |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 231 | xmesa_get_window_size(XMesaDisplay *dpy, XMesaBuffer b, |
| 232 | GLuint *width, GLuint *height) |
| 233 | { |
| 234 | #ifdef XFree86Server |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 235 | *width = MIN2(b->drawable->width, MAX_WIDTH); |
| 236 | *height = MIN2(b->drawable->height, MAX_HEIGHT); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 237 | #else |
| 238 | Status stat; |
| 239 | |
| 240 | _glthread_LOCK_MUTEX(_xmesa_lock); |
| 241 | XSync(b->xm_visual->display, 0); /* added for Chromium */ |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 242 | stat = get_drawable_size(dpy, b->drawable, width, height); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 243 | _glthread_UNLOCK_MUTEX(_xmesa_lock); |
| 244 | |
| 245 | if (!stat) { |
| 246 | /* probably querying a window that's recently been destroyed */ |
| 247 | _mesa_warning(NULL, "XGetGeometry failed!\n"); |
| 248 | *width = *height = 1; |
| 249 | } |
| 250 | #endif |
| 251 | } |
| 252 | |
| 253 | |
Brian | 20eae59 | 2007-12-12 14:55:57 -0700 | [diff] [blame] | 254 | /** |
| 255 | * Choose the pixel format for the given visual. |
| 256 | * This will tell the gallium driver how to pack pixel data into |
| 257 | * drawing surfaces. |
| 258 | */ |
| 259 | static GLuint |
| 260 | choose_pixel_format(XMesaVisual v) |
| 261 | { |
| 262 | if ( GET_REDMASK(v) == 0x0000ff |
| 263 | && GET_GREENMASK(v) == 0x00ff00 |
| 264 | && GET_BLUEMASK(v) == 0xff0000 |
| 265 | && v->BitsPerPixel == 32) { |
| 266 | if (CHECK_BYTE_ORDER(v)) { |
| 267 | /* no byteswapping needed */ |
| 268 | return 0 /* PIXEL_FORMAT_U_A8_B8_G8_R8 */; |
| 269 | } |
| 270 | else { |
| 271 | return PIPE_FORMAT_R8G8B8A8_UNORM; |
| 272 | } |
| 273 | } |
| 274 | else if ( GET_REDMASK(v) == 0xff0000 |
| 275 | && GET_GREENMASK(v) == 0x00ff00 |
| 276 | && GET_BLUEMASK(v) == 0x0000ff |
| 277 | && v->BitsPerPixel == 32) { |
| 278 | if (CHECK_BYTE_ORDER(v)) { |
| 279 | /* no byteswapping needed */ |
| 280 | return PIPE_FORMAT_A8R8G8B8_UNORM; |
| 281 | } |
| 282 | else { |
| 283 | return PIPE_FORMAT_B8G8R8A8_UNORM; |
| 284 | } |
| 285 | } |
| 286 | else if ( GET_REDMASK(v) == 0xf800 |
| 287 | && GET_GREENMASK(v) == 0x07e0 |
| 288 | && GET_BLUEMASK(v) == 0x001f |
| 289 | && CHECK_BYTE_ORDER(v) |
| 290 | && v->BitsPerPixel == 16) { |
| 291 | /* 5-6-5 RGB */ |
| 292 | return PIPE_FORMAT_R5G6B5_UNORM; |
| 293 | } |
| 294 | |
| 295 | assert(0); |
| 296 | return 0; |
| 297 | } |
| 298 | |
| 299 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 300 | |
| 301 | /**********************************************************************/ |
| 302 | /***** Linked list of XMesaBuffers *****/ |
| 303 | /**********************************************************************/ |
| 304 | |
| 305 | XMesaBuffer XMesaBufferList = NULL; |
| 306 | |
| 307 | |
| 308 | /** |
| 309 | * Allocate a new XMesaBuffer object which corresponds to the given drawable. |
| 310 | * Note that XMesaBuffer is derived from GLframebuffer. |
| 311 | * The new XMesaBuffer will not have any size (Width=Height=0). |
| 312 | * |
| 313 | * \param d the corresponding X drawable (window or pixmap) |
| 314 | * \param type either WINDOW, PIXMAP or PBUFFER, describing d |
| 315 | * \param vis the buffer's visual |
| 316 | * \param cmap the window's colormap, if known. |
| 317 | * \return new XMesaBuffer or NULL if any problem |
| 318 | */ |
| 319 | static XMesaBuffer |
| 320 | create_xmesa_buffer(XMesaDrawable d, BufferType type, |
| 321 | XMesaVisual vis, XMesaColormap cmap) |
| 322 | { |
| 323 | XMesaBuffer b; |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 324 | GLframebuffer *fb; |
Brian | 20eae59 | 2007-12-12 14:55:57 -0700 | [diff] [blame] | 325 | enum pipe_format colorFormat, depthFormat, stencilFormat; |
Brian | c664302 | 2007-12-19 13:45:00 -0700 | [diff] [blame] | 326 | uint width, height; |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 327 | |
| 328 | ASSERT(type == WINDOW || type == PIXMAP || type == PBUFFER); |
| 329 | |
| 330 | b = (XMesaBuffer) CALLOC_STRUCT(xmesa_buffer); |
| 331 | if (!b) |
| 332 | return NULL; |
| 333 | |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 334 | b->drawable = d; |
| 335 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 336 | b->xm_visual = vis; |
| 337 | b->type = type; |
| 338 | b->cmap = cmap; |
| 339 | |
Brian | 20eae59 | 2007-12-12 14:55:57 -0700 | [diff] [blame] | 340 | /* determine PIPE_FORMATs for buffers */ |
| 341 | colorFormat = choose_pixel_format(vis); |
| 342 | |
| 343 | if (vis->mesa_visual.depthBits == 0) |
| 344 | depthFormat = PIPE_FORMAT_NONE; |
| 345 | else if (vis->mesa_visual.depthBits <= 16) |
| 346 | depthFormat = PIPE_FORMAT_Z16_UNORM; |
| 347 | else if (vis->mesa_visual.depthBits <= 24) |
| 348 | depthFormat = PIPE_FORMAT_S8Z24_UNORM; |
| 349 | else |
| 350 | depthFormat = PIPE_FORMAT_Z32_UNORM; |
| 351 | |
| 352 | if (vis->mesa_visual.stencilBits == 8) { |
| 353 | if (depthFormat == PIPE_FORMAT_S8Z24_UNORM) |
| 354 | stencilFormat = depthFormat; |
| 355 | else |
| 356 | stencilFormat = PIPE_FORMAT_S8_UNORM; |
| 357 | } |
| 358 | else { |
| 359 | stencilFormat = PIPE_FORMAT_NONE; |
| 360 | } |
| 361 | |
| 362 | |
Brian | c664302 | 2007-12-19 13:45:00 -0700 | [diff] [blame] | 363 | get_drawable_size(vis->display, d, &width, &height); |
| 364 | |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 365 | /* |
| 366 | * Create framebuffer, but we'll plug in our own renderbuffers below. |
| 367 | */ |
Brian | c664302 | 2007-12-19 13:45:00 -0700 | [diff] [blame] | 368 | b->stfb = st_create_framebuffer(&vis->mesa_visual, |
Brian | 20eae59 | 2007-12-12 14:55:57 -0700 | [diff] [blame] | 369 | colorFormat, depthFormat, stencilFormat, |
Brian | c664302 | 2007-12-19 13:45:00 -0700 | [diff] [blame] | 370 | width, height, |
Brian | 20eae59 | 2007-12-12 14:55:57 -0700 | [diff] [blame] | 371 | (void *) b); |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 372 | fb = &b->stfb->Base; |
| 373 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 374 | /* |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 375 | * Create scratch XImage for xmesa_display_surface() |
Brian | b761177 | 2007-10-31 19:00:23 -0600 | [diff] [blame] | 376 | */ |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 377 | b->tempImage = XCreateImage(vis->display, |
| 378 | vis->visinfo->visual, |
| 379 | vis->visinfo->depth, |
| 380 | ZPixmap, 0, /* format, offset */ |
| 381 | NULL, /* data */ |
| 382 | 0, 0, /* size */ |
| 383 | 32, /* bitmap_pad */ |
| 384 | 0); /* bytes_per_line */ |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 385 | |
| 386 | /* GLX_EXT_texture_from_pixmap */ |
| 387 | b->TextureTarget = 0; |
| 388 | b->TextureFormat = GLX_TEXTURE_FORMAT_NONE_EXT; |
| 389 | b->TextureMipmap = 0; |
| 390 | |
| 391 | /* insert buffer into linked list */ |
| 392 | b->Next = XMesaBufferList; |
| 393 | XMesaBufferList = b; |
| 394 | |
| 395 | return b; |
| 396 | } |
| 397 | |
| 398 | |
| 399 | /** |
| 400 | * Find an XMesaBuffer by matching X display and colormap but NOT matching |
| 401 | * the notThis buffer. |
| 402 | */ |
| 403 | XMesaBuffer |
| 404 | xmesa_find_buffer(XMesaDisplay *dpy, XMesaColormap cmap, XMesaBuffer notThis) |
| 405 | { |
| 406 | XMesaBuffer b; |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 407 | for (b = XMesaBufferList; b; b = b->Next) { |
| 408 | if (b->xm_visual->display == dpy && |
| 409 | b->cmap == cmap && |
| 410 | b != notThis) { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 411 | return b; |
| 412 | } |
| 413 | } |
| 414 | return NULL; |
| 415 | } |
| 416 | |
| 417 | |
| 418 | /** |
| 419 | * Remove buffer from linked list, delete if no longer referenced. |
| 420 | */ |
| 421 | static void |
| 422 | xmesa_free_buffer(XMesaBuffer buffer) |
| 423 | { |
| 424 | XMesaBuffer prev = NULL, b; |
| 425 | |
| 426 | for (b = XMesaBufferList; b; b = b->Next) { |
| 427 | if (b == buffer) { |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 428 | struct gl_framebuffer *fb = &buffer->stfb->Base; |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 429 | |
| 430 | /* unlink buffer from list */ |
| 431 | if (prev) |
| 432 | prev->Next = buffer->Next; |
| 433 | else |
| 434 | XMesaBufferList = buffer->Next; |
| 435 | |
| 436 | /* mark as delete pending */ |
| 437 | fb->DeletePending = GL_TRUE; |
| 438 | |
| 439 | /* Since the X window for the XMesaBuffer is going away, we don't |
| 440 | * want to dereference this pointer in the future. |
| 441 | */ |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 442 | b->drawable = 0; |
| 443 | |
| 444 | buffer->tempImage->data = NULL; |
| 445 | XDestroyImage(buffer->tempImage); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 446 | |
| 447 | /* Unreference. If count = zero we'll really delete the buffer */ |
| 448 | _mesa_unreference_framebuffer(&fb); |
| 449 | |
Brian | f44e2f1 | 2007-12-26 06:56:58 -0700 | [diff] [blame] | 450 | XFreeGC(b->xm_visual->display, b->gc); |
| 451 | |
| 452 | free(buffer); |
| 453 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 454 | return; |
| 455 | } |
| 456 | /* continue search */ |
| 457 | prev = b; |
| 458 | } |
| 459 | /* buffer not found in XMesaBufferList */ |
| 460 | _mesa_problem(NULL,"xmesa_free_buffer() - buffer not found\n"); |
| 461 | } |
| 462 | |
| 463 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 464 | |
| 465 | /**********************************************************************/ |
| 466 | /***** Misc Private Functions *****/ |
| 467 | /**********************************************************************/ |
| 468 | |
| 469 | |
| 470 | /** |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 471 | * When a context is bound for the first time, we can finally finish |
| 472 | * initializing the context's visual and buffer information. |
| 473 | * \param v the XMesaVisual to initialize |
| 474 | * \param b the XMesaBuffer to initialize (may be NULL) |
| 475 | * \param rgb_flag TRUE = RGBA mode, FALSE = color index mode |
| 476 | * \param window the window/pixmap we're rendering into |
| 477 | * \param cmap the colormap associated with the window/pixmap |
| 478 | * \return GL_TRUE=success, GL_FALSE=failure |
| 479 | */ |
| 480 | static GLboolean |
| 481 | initialize_visual_and_buffer(XMesaVisual v, XMesaBuffer b, |
| 482 | GLboolean rgb_flag, XMesaDrawable window, |
| 483 | XMesaColormap cmap) |
| 484 | { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 485 | #ifdef XFree86Server |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 486 | int client = (window) ? CLIENT_ID(window->id) : 0; |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 487 | #endif |
| 488 | |
| 489 | ASSERT(!b || b->xm_visual == v); |
| 490 | |
| 491 | /* Save true bits/pixel */ |
| 492 | v->BitsPerPixel = bits_per_pixel(v); |
| 493 | assert(v->BitsPerPixel > 0); |
| 494 | |
| 495 | if (rgb_flag == GL_FALSE) { |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 496 | /* COLOR-INDEXED WINDOW: not supported*/ |
| 497 | return GL_FALSE; |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 498 | } |
| 499 | else { |
| 500 | /* RGB WINDOW: |
| 501 | * We support RGB rendering into almost any kind of visual. |
| 502 | */ |
| 503 | const int xclass = v->mesa_visual.visualType; |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 504 | if (xclass != GLX_TRUE_COLOR && xclass == !GLX_DIRECT_COLOR) { |
| 505 | _mesa_warning(NULL, |
| 506 | "XMesa: RGB mode rendering not supported in given visual.\n"); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 507 | return GL_FALSE; |
| 508 | } |
| 509 | v->mesa_visual.indexBits = 0; |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 510 | } |
| 511 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 512 | /* |
| 513 | * If MESA_INFO env var is set print out some debugging info |
| 514 | * which can help Brian figure out what's going on when a user |
| 515 | * reports bugs. |
| 516 | */ |
| 517 | if (_mesa_getenv("MESA_INFO")) { |
| 518 | _mesa_printf("X/Mesa visual = %p\n", (void *) v); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 519 | _mesa_printf("X/Mesa level = %d\n", v->mesa_visual.level); |
| 520 | _mesa_printf("X/Mesa depth = %d\n", GET_VISUAL_DEPTH(v)); |
| 521 | _mesa_printf("X/Mesa bits per pixel = %d\n", v->BitsPerPixel); |
| 522 | } |
| 523 | |
| 524 | if (b && window) { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 525 | /* these should have been set in create_xmesa_buffer */ |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 526 | ASSERT(b->drawable == window); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 527 | |
| 528 | /* Setup for single/double buffering */ |
| 529 | if (v->mesa_visual.doubleBufferMode) { |
| 530 | /* Double buffered */ |
| 531 | b->shm = check_for_xshm( v->display ); |
| 532 | } |
| 533 | |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 534 | /* X11 graphics context */ |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 535 | #ifdef XFree86Server |
| 536 | b->gc = CreateScratchGC(v->display, window->depth); |
| 537 | #else |
| 538 | b->gc = XCreateGC( v->display, window, 0, NULL ); |
| 539 | #endif |
| 540 | XMesaSetFunction( v->display, b->gc, GXcopy ); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 541 | } |
| 542 | |
| 543 | return GL_TRUE; |
| 544 | } |
| 545 | |
| 546 | |
| 547 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 548 | #define NUM_VISUAL_TYPES 6 |
| 549 | |
| 550 | /** |
| 551 | * Convert an X visual type to a GLX visual type. |
| 552 | * |
| 553 | * \param visualType X visual type (i.e., \c TrueColor, \c StaticGray, etc.) |
| 554 | * to be converted. |
| 555 | * \return If \c visualType is a valid X visual type, a GLX visual type will |
| 556 | * be returned. Otherwise \c GLX_NONE will be returned. |
| 557 | * |
| 558 | * \note |
| 559 | * This code was lifted directly from lib/GL/glx/glcontextmodes.c in the |
| 560 | * DRI CVS tree. |
| 561 | */ |
| 562 | static GLint |
| 563 | xmesa_convert_from_x_visual_type( int visualType ) |
| 564 | { |
| 565 | static const int glx_visual_types[ NUM_VISUAL_TYPES ] = { |
| 566 | GLX_STATIC_GRAY, GLX_GRAY_SCALE, |
| 567 | GLX_STATIC_COLOR, GLX_PSEUDO_COLOR, |
| 568 | GLX_TRUE_COLOR, GLX_DIRECT_COLOR |
| 569 | }; |
| 570 | |
| 571 | return ( (unsigned) visualType < NUM_VISUAL_TYPES ) |
| 572 | ? glx_visual_types[ visualType ] : GLX_NONE; |
| 573 | } |
| 574 | |
| 575 | |
| 576 | /**********************************************************************/ |
| 577 | /***** Public Functions *****/ |
| 578 | /**********************************************************************/ |
| 579 | |
| 580 | |
| 581 | /* |
| 582 | * Create a new X/Mesa visual. |
| 583 | * Input: display - X11 display |
| 584 | * visinfo - an XVisualInfo pointer |
| 585 | * rgb_flag - GL_TRUE = RGB mode, |
| 586 | * GL_FALSE = color index mode |
| 587 | * alpha_flag - alpha buffer requested? |
| 588 | * db_flag - GL_TRUE = double-buffered, |
| 589 | * GL_FALSE = single buffered |
| 590 | * stereo_flag - stereo visual? |
| 591 | * ximage_flag - GL_TRUE = use an XImage for back buffer, |
| 592 | * GL_FALSE = use an off-screen pixmap for back buffer |
| 593 | * depth_size - requested bits/depth values, or zero |
| 594 | * stencil_size - requested bits/stencil values, or zero |
| 595 | * accum_red_size - requested bits/red accum values, or zero |
| 596 | * accum_green_size - requested bits/green accum values, or zero |
| 597 | * accum_blue_size - requested bits/blue accum values, or zero |
| 598 | * accum_alpha_size - requested bits/alpha accum values, or zero |
| 599 | * num_samples - number of samples/pixel if multisampling, or zero |
| 600 | * level - visual level, usually 0 |
| 601 | * visualCaveat - ala the GLX extension, usually GLX_NONE |
| 602 | * Return; a new XMesaVisual or 0 if error. |
| 603 | */ |
| 604 | PUBLIC |
| 605 | XMesaVisual XMesaCreateVisual( XMesaDisplay *display, |
| 606 | XMesaVisualInfo visinfo, |
| 607 | GLboolean rgb_flag, |
| 608 | GLboolean alpha_flag, |
| 609 | GLboolean db_flag, |
| 610 | GLboolean stereo_flag, |
| 611 | GLboolean ximage_flag, |
| 612 | GLint depth_size, |
| 613 | GLint stencil_size, |
| 614 | GLint accum_red_size, |
| 615 | GLint accum_green_size, |
| 616 | GLint accum_blue_size, |
| 617 | GLint accum_alpha_size, |
| 618 | GLint num_samples, |
| 619 | GLint level, |
| 620 | GLint visualCaveat ) |
| 621 | { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 622 | XMesaVisual v; |
| 623 | GLint red_bits, green_bits, blue_bits, alpha_bits; |
| 624 | |
| 625 | #ifndef XFree86Server |
| 626 | /* For debugging only */ |
| 627 | if (_mesa_getenv("MESA_XSYNC")) { |
| 628 | /* This makes debugging X easier. |
| 629 | * In your debugger, set a breakpoint on _XError to stop when an |
| 630 | * X protocol error is generated. |
| 631 | */ |
| 632 | XSynchronize( display, 1 ); |
| 633 | } |
| 634 | #endif |
| 635 | |
| 636 | v = (XMesaVisual) CALLOC_STRUCT(xmesa_visual); |
| 637 | if (!v) { |
| 638 | return NULL; |
| 639 | } |
| 640 | |
| 641 | v->display = display; |
| 642 | |
| 643 | /* Save a copy of the XVisualInfo struct because the user may X_mesa_free() |
| 644 | * the struct but we may need some of the information contained in it |
| 645 | * at a later time. |
| 646 | */ |
| 647 | #ifndef XFree86Server |
| 648 | v->visinfo = (XVisualInfo *) MALLOC(sizeof(*visinfo)); |
| 649 | if(!v->visinfo) { |
| 650 | _mesa_free(v); |
| 651 | return NULL; |
| 652 | } |
| 653 | MEMCPY(v->visinfo, visinfo, sizeof(*visinfo)); |
| 654 | #endif |
| 655 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 656 | v->ximage_flag = ximage_flag; |
| 657 | |
| 658 | #ifdef XFree86Server |
| 659 | /* We could calculate these values by ourselves. nplanes is either the sum |
| 660 | * of the red, green, and blue bits or the number index bits. |
| 661 | * ColormapEntries is either (1U << index_bits) or |
| 662 | * (1U << max(redBits, greenBits, blueBits)). |
| 663 | */ |
| 664 | assert(visinfo->nplanes > 0); |
| 665 | v->nplanes = visinfo->nplanes; |
| 666 | v->ColormapEntries = visinfo->ColormapEntries; |
| 667 | |
| 668 | v->mesa_visual.redMask = visinfo->redMask; |
| 669 | v->mesa_visual.greenMask = visinfo->greenMask; |
| 670 | v->mesa_visual.blueMask = visinfo->blueMask; |
| 671 | v->mesa_visual.visualID = visinfo->vid; |
| 672 | v->mesa_visual.screen = 0; /* FIXME: What should be done here? */ |
| 673 | #else |
| 674 | v->mesa_visual.redMask = visinfo->red_mask; |
| 675 | v->mesa_visual.greenMask = visinfo->green_mask; |
| 676 | v->mesa_visual.blueMask = visinfo->blue_mask; |
| 677 | v->mesa_visual.visualID = visinfo->visualid; |
| 678 | v->mesa_visual.screen = visinfo->screen; |
| 679 | #endif |
| 680 | |
| 681 | #if defined(XFree86Server) || !(defined(__cplusplus) || defined(c_plusplus)) |
| 682 | v->mesa_visual.visualType = xmesa_convert_from_x_visual_type(visinfo->class); |
| 683 | #else |
| 684 | v->mesa_visual.visualType = xmesa_convert_from_x_visual_type(visinfo->c_class); |
| 685 | #endif |
| 686 | |
| 687 | v->mesa_visual.visualRating = visualCaveat; |
| 688 | |
| 689 | if (alpha_flag) |
| 690 | v->mesa_visual.alphaBits = 8; |
| 691 | |
| 692 | (void) initialize_visual_and_buffer( v, NULL, rgb_flag, 0, 0 ); |
| 693 | |
| 694 | { |
| 695 | const int xclass = v->mesa_visual.visualType; |
| 696 | if (xclass == GLX_TRUE_COLOR || xclass == GLX_DIRECT_COLOR) { |
| 697 | red_bits = _mesa_bitcount(GET_REDMASK(v)); |
| 698 | green_bits = _mesa_bitcount(GET_GREENMASK(v)); |
| 699 | blue_bits = _mesa_bitcount(GET_BLUEMASK(v)); |
| 700 | } |
| 701 | else { |
| 702 | /* this is an approximation */ |
| 703 | int depth; |
| 704 | depth = GET_VISUAL_DEPTH(v); |
| 705 | red_bits = depth / 3; |
| 706 | depth -= red_bits; |
| 707 | green_bits = depth / 2; |
| 708 | depth -= green_bits; |
| 709 | blue_bits = depth; |
| 710 | alpha_bits = 0; |
| 711 | assert( red_bits + green_bits + blue_bits == GET_VISUAL_DEPTH(v) ); |
| 712 | } |
| 713 | alpha_bits = v->mesa_visual.alphaBits; |
| 714 | } |
| 715 | |
| 716 | _mesa_initialize_visual( &v->mesa_visual, |
| 717 | rgb_flag, db_flag, stereo_flag, |
| 718 | red_bits, green_bits, |
| 719 | blue_bits, alpha_bits, |
| 720 | v->mesa_visual.indexBits, |
| 721 | depth_size, |
| 722 | stencil_size, |
| 723 | accum_red_size, accum_green_size, |
| 724 | accum_blue_size, accum_alpha_size, |
| 725 | 0 ); |
| 726 | |
| 727 | /* XXX minor hack */ |
| 728 | v->mesa_visual.level = level; |
| 729 | return v; |
| 730 | } |
| 731 | |
| 732 | |
| 733 | PUBLIC |
| 734 | void XMesaDestroyVisual( XMesaVisual v ) |
| 735 | { |
| 736 | #ifndef XFree86Server |
| 737 | _mesa_free(v->visinfo); |
| 738 | #endif |
| 739 | _mesa_free(v); |
| 740 | } |
| 741 | |
| 742 | |
| 743 | |
| 744 | /** |
| 745 | * Create a new XMesaContext. |
| 746 | * \param v the XMesaVisual |
| 747 | * \param share_list another XMesaContext with which to share display |
| 748 | * lists or NULL if no sharing is wanted. |
| 749 | * \return an XMesaContext or NULL if error. |
| 750 | */ |
| 751 | PUBLIC |
| 752 | XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list ) |
| 753 | { |
| 754 | static GLboolean firstTime = GL_TRUE; |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 755 | struct pipe_context *pipe; |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 756 | XMesaContext c; |
| 757 | GLcontext *mesaCtx; |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 758 | uint pf; |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 759 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 760 | if (firstTime) { |
| 761 | _glthread_INIT_MUTEX(_xmesa_lock); |
| 762 | firstTime = GL_FALSE; |
| 763 | } |
| 764 | |
| 765 | /* Note: the XMesaContext contains a Mesa GLcontext struct (inheritance) */ |
| 766 | c = (XMesaContext) CALLOC_STRUCT(xmesa_context); |
| 767 | if (!c) |
| 768 | return NULL; |
| 769 | |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 770 | pf = choose_pixel_format(v); |
Brian | 0d1669f | 2007-12-07 08:24:56 -0700 | [diff] [blame] | 771 | assert(pf); |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 772 | |
Zack Rusin | c474f1f | 2007-12-11 07:19:11 -0500 | [diff] [blame] | 773 | if (!getenv("XM_AUB")) { |
| 774 | xmesa_mode = XMESA_SOFTPIPE; |
| 775 | pipe = xmesa_create_pipe_context( c, pf ); |
| 776 | } |
| 777 | else { |
| 778 | xmesa_mode = XMESA_AUB; |
| 779 | pipe = xmesa_create_i965simple( xmesa_get_pipe_winsys_aub() ); |
| 780 | } |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 781 | |
Brian | 91564ee | 2007-11-05 16:15:43 -0700 | [diff] [blame] | 782 | c->st = st_create_context(pipe, &v->mesa_visual, |
| 783 | share_list ? share_list->st : NULL); |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 784 | mesaCtx = c->st->ctx; |
| 785 | c->st->ctx->DriverCtx = c; |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 786 | |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 787 | #if 00 |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 788 | _mesa_enable_sw_extensions(mesaCtx); |
| 789 | _mesa_enable_1_3_extensions(mesaCtx); |
| 790 | _mesa_enable_1_4_extensions(mesaCtx); |
| 791 | _mesa_enable_1_5_extensions(mesaCtx); |
| 792 | _mesa_enable_2_0_extensions(mesaCtx); |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 793 | #endif |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 794 | |
| 795 | #ifdef XFree86Server |
| 796 | /* If we're running in the X server, do bounds checking to prevent |
| 797 | * segfaults and server crashes! |
| 798 | */ |
| 799 | mesaCtx->Const.CheckArrayBounds = GL_TRUE; |
| 800 | #endif |
| 801 | |
| 802 | /* finish up xmesa context initializations */ |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 803 | c->xm_visual = v; |
| 804 | c->xm_buffer = NULL; /* set later by XMesaMakeCurrent */ |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 805 | |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 806 | c->st->haveFramebufferSurfaces = GL_TRUE; |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 807 | |
| 808 | return c; |
| 809 | } |
| 810 | |
| 811 | |
| 812 | |
| 813 | PUBLIC |
| 814 | void XMesaDestroyContext( XMesaContext c ) |
| 815 | { |
Brian | 91564ee | 2007-11-05 16:15:43 -0700 | [diff] [blame] | 816 | st_destroy_context(c->st); |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 817 | _mesa_free(c); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 818 | } |
| 819 | |
| 820 | |
| 821 | |
| 822 | /** |
| 823 | * Private function for creating an XMesaBuffer which corresponds to an |
| 824 | * X window or pixmap. |
| 825 | * \param v the window's XMesaVisual |
| 826 | * \param w the window we're wrapping |
| 827 | * \return new XMesaBuffer or NULL if error |
| 828 | */ |
| 829 | PUBLIC XMesaBuffer |
| 830 | XMesaCreateWindowBuffer(XMesaVisual v, XMesaWindow w) |
| 831 | { |
| 832 | #ifndef XFree86Server |
| 833 | XWindowAttributes attr; |
| 834 | #endif |
| 835 | XMesaBuffer b; |
| 836 | XMesaColormap cmap; |
| 837 | int depth; |
| 838 | |
| 839 | assert(v); |
| 840 | assert(w); |
| 841 | |
| 842 | /* Check that window depth matches visual depth */ |
| 843 | #ifdef XFree86Server |
| 844 | depth = ((XMesaDrawable)w)->depth; |
| 845 | #else |
| 846 | XGetWindowAttributes( v->display, w, &attr ); |
| 847 | depth = attr.depth; |
| 848 | #endif |
| 849 | if (GET_VISUAL_DEPTH(v) != depth) { |
| 850 | _mesa_warning(NULL, "XMesaCreateWindowBuffer: depth mismatch between visual (%d) and window (%d)!\n", |
| 851 | GET_VISUAL_DEPTH(v), depth); |
| 852 | return NULL; |
| 853 | } |
| 854 | |
| 855 | /* Find colormap */ |
| 856 | #ifdef XFree86Server |
| 857 | cmap = (ColormapPtr)LookupIDByType(wColormap(w), RT_COLORMAP); |
| 858 | #else |
| 859 | if (attr.colormap) { |
| 860 | cmap = attr.colormap; |
| 861 | } |
| 862 | else { |
| 863 | _mesa_warning(NULL, "Window %u has no colormap!\n", (unsigned int) w); |
| 864 | /* this is weird, a window w/out a colormap!? */ |
| 865 | /* OK, let's just allocate a new one and hope for the best */ |
| 866 | cmap = XCreateColormap(v->display, w, attr.visual, AllocNone); |
| 867 | } |
| 868 | #endif |
| 869 | |
| 870 | b = create_xmesa_buffer((XMesaDrawable) w, WINDOW, v, cmap); |
| 871 | if (!b) |
| 872 | return NULL; |
| 873 | |
| 874 | if (!initialize_visual_and_buffer( v, b, v->mesa_visual.rgbMode, |
| 875 | (XMesaDrawable) w, cmap )) { |
| 876 | xmesa_free_buffer(b); |
| 877 | return NULL; |
| 878 | } |
| 879 | |
| 880 | return b; |
| 881 | } |
| 882 | |
| 883 | |
| 884 | |
| 885 | /** |
| 886 | * Create a new XMesaBuffer from an X pixmap. |
| 887 | * |
| 888 | * \param v the XMesaVisual |
| 889 | * \param p the pixmap |
| 890 | * \param cmap the colormap, may be 0 if using a \c GLX_TRUE_COLOR or |
| 891 | * \c GLX_DIRECT_COLOR visual for the pixmap |
| 892 | * \returns new XMesaBuffer or NULL if error |
| 893 | */ |
| 894 | PUBLIC XMesaBuffer |
| 895 | XMesaCreatePixmapBuffer(XMesaVisual v, XMesaPixmap p, XMesaColormap cmap) |
| 896 | { |
| 897 | XMesaBuffer b; |
| 898 | |
| 899 | assert(v); |
| 900 | |
| 901 | b = create_xmesa_buffer((XMesaDrawable) p, PIXMAP, v, cmap); |
| 902 | if (!b) |
| 903 | return NULL; |
| 904 | |
| 905 | if (!initialize_visual_and_buffer(v, b, v->mesa_visual.rgbMode, |
| 906 | (XMesaDrawable) p, cmap)) { |
| 907 | xmesa_free_buffer(b); |
| 908 | return NULL; |
| 909 | } |
| 910 | |
| 911 | return b; |
| 912 | } |
| 913 | |
| 914 | |
| 915 | /** |
| 916 | * For GLX_EXT_texture_from_pixmap |
| 917 | */ |
| 918 | XMesaBuffer |
| 919 | XMesaCreatePixmapTextureBuffer(XMesaVisual v, XMesaPixmap p, |
| 920 | XMesaColormap cmap, |
| 921 | int format, int target, int mipmap) |
| 922 | { |
| 923 | GET_CURRENT_CONTEXT(ctx); |
| 924 | XMesaBuffer b; |
| 925 | GLuint width, height; |
| 926 | |
| 927 | assert(v); |
| 928 | |
| 929 | b = create_xmesa_buffer((XMesaDrawable) p, PIXMAP, v, cmap); |
| 930 | if (!b) |
| 931 | return NULL; |
| 932 | |
| 933 | /* get pixmap size, update framebuffer/renderbuffer dims */ |
| 934 | xmesa_get_window_size(v->display, b, &width, &height); |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 935 | _mesa_resize_framebuffer(NULL, &(b->stfb->Base), width, height); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 936 | |
| 937 | if (target == 0) { |
| 938 | /* examine dims */ |
| 939 | if (ctx->Extensions.ARB_texture_non_power_of_two) { |
| 940 | target = GLX_TEXTURE_2D_EXT; |
| 941 | } |
| 942 | else if ( _mesa_bitcount(width) == 1 |
| 943 | && _mesa_bitcount(height) == 1) { |
| 944 | /* power of two size */ |
| 945 | if (height == 1) { |
| 946 | target = GLX_TEXTURE_1D_EXT; |
| 947 | } |
| 948 | else { |
| 949 | target = GLX_TEXTURE_2D_EXT; |
| 950 | } |
| 951 | } |
| 952 | else if (ctx->Extensions.NV_texture_rectangle) { |
| 953 | target = GLX_TEXTURE_RECTANGLE_EXT; |
| 954 | } |
| 955 | else { |
| 956 | /* non power of two textures not supported */ |
| 957 | XMesaDestroyBuffer(b); |
| 958 | return 0; |
| 959 | } |
| 960 | } |
| 961 | |
| 962 | b->TextureTarget = target; |
| 963 | b->TextureFormat = format; |
| 964 | b->TextureMipmap = mipmap; |
| 965 | |
| 966 | if (!initialize_visual_and_buffer(v, b, v->mesa_visual.rgbMode, |
| 967 | (XMesaDrawable) p, cmap)) { |
| 968 | xmesa_free_buffer(b); |
| 969 | return NULL; |
| 970 | } |
| 971 | |
| 972 | return b; |
| 973 | } |
| 974 | |
| 975 | |
| 976 | |
| 977 | XMesaBuffer |
| 978 | XMesaCreatePBuffer(XMesaVisual v, XMesaColormap cmap, |
| 979 | unsigned int width, unsigned int height) |
| 980 | { |
| 981 | #ifndef XFree86Server |
| 982 | XMesaWindow root; |
| 983 | XMesaDrawable drawable; /* X Pixmap Drawable */ |
| 984 | XMesaBuffer b; |
| 985 | |
| 986 | /* allocate pixmap for front buffer */ |
| 987 | root = RootWindow( v->display, v->visinfo->screen ); |
| 988 | drawable = XCreatePixmap(v->display, root, width, height, |
| 989 | v->visinfo->depth); |
| 990 | if (!drawable) |
| 991 | return NULL; |
| 992 | |
| 993 | b = create_xmesa_buffer(drawable, PBUFFER, v, cmap); |
| 994 | if (!b) |
| 995 | return NULL; |
| 996 | |
| 997 | if (!initialize_visual_and_buffer(v, b, v->mesa_visual.rgbMode, |
| 998 | drawable, cmap)) { |
| 999 | xmesa_free_buffer(b); |
| 1000 | return NULL; |
| 1001 | } |
| 1002 | |
| 1003 | return b; |
| 1004 | #else |
| 1005 | return 0; |
| 1006 | #endif |
| 1007 | } |
| 1008 | |
| 1009 | |
| 1010 | |
| 1011 | /* |
| 1012 | * Deallocate an XMesaBuffer structure and all related info. |
| 1013 | */ |
| 1014 | PUBLIC void |
| 1015 | XMesaDestroyBuffer(XMesaBuffer b) |
| 1016 | { |
| 1017 | xmesa_free_buffer(b); |
| 1018 | } |
| 1019 | |
| 1020 | |
| 1021 | /** |
| 1022 | * Query the current window size and update the corresponding GLframebuffer |
| 1023 | * and all attached renderbuffers. |
| 1024 | * Called when: |
| 1025 | * 1. the first time a buffer is bound to a context. |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1026 | * 2. from the XMesaResizeBuffers() API function. |
| 1027 | * 3. SwapBuffers. XXX probabaly from xm_flush_frontbuffer() too... |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1028 | * Note: it's possible (and legal) for xmctx to be NULL. That can happen |
| 1029 | * when resizing a buffer when no rendering context is bound. |
| 1030 | */ |
| 1031 | void |
| 1032 | xmesa_check_and_update_buffer_size(XMesaContext xmctx, XMesaBuffer drawBuffer) |
| 1033 | { |
| 1034 | GLuint width, height; |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1035 | xmesa_get_window_size(drawBuffer->xm_visual->display, drawBuffer, &width, &height); |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 1036 | st_resize_framebuffer(drawBuffer->stfb, width, height); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1037 | } |
| 1038 | |
| 1039 | |
| 1040 | /* |
| 1041 | * Bind buffer b to context c and make c the current rendering context. |
| 1042 | */ |
| 1043 | GLboolean XMesaMakeCurrent( XMesaContext c, XMesaBuffer b ) |
| 1044 | { |
| 1045 | return XMesaMakeCurrent2( c, b, b ); |
| 1046 | } |
| 1047 | |
| 1048 | |
| 1049 | /* |
| 1050 | * Bind buffer b to context c and make c the current rendering context. |
| 1051 | */ |
| 1052 | PUBLIC |
| 1053 | GLboolean XMesaMakeCurrent2( XMesaContext c, XMesaBuffer drawBuffer, |
| 1054 | XMesaBuffer readBuffer ) |
| 1055 | { |
| 1056 | if (c) { |
| 1057 | if (!drawBuffer || !readBuffer) |
| 1058 | return GL_FALSE; /* must specify buffers! */ |
| 1059 | |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 1060 | #if 0 |
| 1061 | /* XXX restore this optimization */ |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1062 | if (&(c->mesa) == _mesa_get_current_context() |
| 1063 | && c->mesa.DrawBuffer == &drawBuffer->mesa_buffer |
| 1064 | && c->mesa.ReadBuffer == &readBuffer->mesa_buffer |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1065 | && xmesa_buffer(c->mesa.DrawBuffer)->wasCurrent) { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1066 | /* same context and buffer, do nothing */ |
| 1067 | return GL_TRUE; |
| 1068 | } |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 1069 | #endif |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1070 | |
| 1071 | c->xm_buffer = drawBuffer; |
| 1072 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1073 | /* Call this periodically to detect when the user has begun using |
| 1074 | * GL rendering from multiple threads. |
| 1075 | */ |
| 1076 | _glapi_check_multithread(); |
| 1077 | |
Brian | dbf6ece | 2007-12-19 08:50:35 -0700 | [diff] [blame] | 1078 | st_make_current(c->st, drawBuffer->stfb, readBuffer->stfb); |
| 1079 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1080 | xmesa_check_and_update_buffer_size(c, drawBuffer); |
| 1081 | if (readBuffer != drawBuffer) |
| 1082 | xmesa_check_and_update_buffer_size(c, readBuffer); |
| 1083 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1084 | /* Solution to Stephane Rehel's problem with glXReleaseBuffersMESA(): */ |
| 1085 | drawBuffer->wasCurrent = GL_TRUE; |
| 1086 | } |
| 1087 | else { |
| 1088 | /* Detach */ |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 1089 | st_make_current( NULL, NULL, NULL ); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1090 | } |
| 1091 | return GL_TRUE; |
| 1092 | } |
| 1093 | |
| 1094 | |
| 1095 | /* |
| 1096 | * Unbind the context c from its buffer. |
| 1097 | */ |
| 1098 | GLboolean XMesaUnbindContext( XMesaContext c ) |
| 1099 | { |
| 1100 | /* A no-op for XFree86 integration purposes */ |
| 1101 | return GL_TRUE; |
| 1102 | } |
| 1103 | |
| 1104 | |
| 1105 | XMesaContext XMesaGetCurrentContext( void ) |
| 1106 | { |
| 1107 | GET_CURRENT_CONTEXT(ctx); |
| 1108 | if (ctx) { |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1109 | XMesaContext xmesa = xmesa_context(ctx); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1110 | return xmesa; |
| 1111 | } |
| 1112 | else { |
| 1113 | return 0; |
| 1114 | } |
| 1115 | } |
| 1116 | |
| 1117 | |
| 1118 | XMesaBuffer XMesaGetCurrentBuffer( void ) |
| 1119 | { |
| 1120 | GET_CURRENT_CONTEXT(ctx); |
| 1121 | if (ctx) { |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1122 | XMesaBuffer xmbuf = xmesa_buffer(ctx->DrawBuffer); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1123 | return xmbuf; |
| 1124 | } |
| 1125 | else { |
| 1126 | return 0; |
| 1127 | } |
| 1128 | } |
| 1129 | |
| 1130 | |
| 1131 | /* New in Mesa 3.1 */ |
| 1132 | XMesaBuffer XMesaGetCurrentReadBuffer( void ) |
| 1133 | { |
| 1134 | GET_CURRENT_CONTEXT(ctx); |
| 1135 | if (ctx) { |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1136 | return xmesa_buffer(ctx->ReadBuffer); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1137 | } |
| 1138 | else { |
| 1139 | return 0; |
| 1140 | } |
| 1141 | } |
| 1142 | |
| 1143 | |
| 1144 | #ifdef XFree86Server |
| 1145 | PUBLIC |
| 1146 | GLboolean XMesaForceCurrent(XMesaContext c) |
| 1147 | { |
| 1148 | if (c) { |
| 1149 | _glapi_set_dispatch(c->mesa.CurrentDispatch); |
| 1150 | |
| 1151 | if (&(c->mesa) != _mesa_get_current_context()) { |
| 1152 | _mesa_make_current(&c->mesa, c->mesa.DrawBuffer, c->mesa.ReadBuffer); |
| 1153 | } |
| 1154 | } |
| 1155 | else { |
| 1156 | _mesa_make_current(NULL, NULL, NULL); |
| 1157 | } |
| 1158 | return GL_TRUE; |
| 1159 | } |
| 1160 | |
| 1161 | |
| 1162 | PUBLIC |
| 1163 | GLboolean XMesaLoseCurrent(XMesaContext c) |
| 1164 | { |
| 1165 | (void) c; |
| 1166 | _mesa_make_current(NULL, NULL, NULL); |
| 1167 | return GL_TRUE; |
| 1168 | } |
| 1169 | |
| 1170 | |
| 1171 | PUBLIC |
| 1172 | GLboolean XMesaCopyContext( XMesaContext xm_src, XMesaContext xm_dst, GLuint mask ) |
| 1173 | { |
| 1174 | _mesa_copy_context(&xm_src->mesa, &xm_dst->mesa, mask); |
| 1175 | return GL_TRUE; |
| 1176 | } |
| 1177 | #endif /* XFree86Server */ |
| 1178 | |
| 1179 | |
| 1180 | #ifndef FX |
| 1181 | GLboolean XMesaSetFXmode( GLint mode ) |
| 1182 | { |
| 1183 | (void) mode; |
| 1184 | return GL_FALSE; |
| 1185 | } |
| 1186 | #endif |
| 1187 | |
| 1188 | |
| 1189 | |
| 1190 | /* |
| 1191 | * Copy the back buffer to the front buffer. If there's no back buffer |
| 1192 | * this is a no-op. |
| 1193 | */ |
| 1194 | PUBLIC |
| 1195 | void XMesaSwapBuffers( XMesaBuffer b ) |
| 1196 | { |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1197 | struct pipe_surface *surf; |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1198 | |
| 1199 | /* If we're swapping the buffer associated with the current context |
| 1200 | * we have to flush any pending rendering commands first. |
| 1201 | */ |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 1202 | st_notify_swapbuffers(b->stfb); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1203 | |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1204 | surf = st_get_framebuffer_surface(b->stfb, ST_SURFACE_BACK_LEFT); |
| 1205 | if (surf) { |
Zack Rusin | c474f1f | 2007-12-11 07:19:11 -0500 | [diff] [blame] | 1206 | if (xmesa_mode == XMESA_AUB) |
| 1207 | xmesa_display_aub( surf ); |
| 1208 | else |
| 1209 | xmesa_display_surface(b, surf); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1210 | } |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1211 | |
| 1212 | xmesa_check_and_update_buffer_size(NULL, b); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1213 | } |
| 1214 | |
| 1215 | |
| 1216 | |
| 1217 | /* |
| 1218 | * Copy sub-region of back buffer to front buffer |
| 1219 | */ |
| 1220 | void XMesaCopySubBuffer( XMesaBuffer b, int x, int y, int width, int height ) |
| 1221 | { |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1222 | struct pipe_surface *surf_front |
| 1223 | = st_get_framebuffer_surface(b->stfb, ST_SURFACE_FRONT_LEFT); |
| 1224 | struct pipe_surface *surf_back |
| 1225 | = st_get_framebuffer_surface(b->stfb, ST_SURFACE_BACK_LEFT); |
| 1226 | struct pipe_context *pipe = NULL; /* XXX fix */ |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1227 | |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1228 | if (!surf_front || !surf_back) |
| 1229 | return; |
Brian | e39f1b4 | 2007-11-05 15:59:55 -0700 | [diff] [blame] | 1230 | |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1231 | pipe->surface_copy(pipe, |
Michel Dänzer | e922adb | 2008-02-13 11:39:58 +0000 | [diff] [blame^] | 1232 | FALSE, |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1233 | surf_front, x, y, /* dest */ |
| 1234 | surf_back, x, y, /* src */ |
| 1235 | width, height); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1236 | } |
| 1237 | |
| 1238 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1239 | |
| 1240 | /* |
| 1241 | * Return the depth buffer associated with an XMesaBuffer. |
| 1242 | * Input: b - the XMesa buffer handle |
| 1243 | * Output: width, height - size of buffer in pixels |
| 1244 | * bytesPerValue - bytes per depth value (2 or 4) |
| 1245 | * buffer - pointer to depth buffer values |
| 1246 | * Return: GL_TRUE or GL_FALSE to indicate success or failure. |
| 1247 | */ |
| 1248 | GLboolean XMesaGetDepthBuffer( XMesaBuffer b, GLint *width, GLint *height, |
| 1249 | GLint *bytesPerValue, void **buffer ) |
| 1250 | { |
Michel Dänzer | c76efb9 | 2008-01-10 17:44:04 +0100 | [diff] [blame] | 1251 | *width = 0; |
| 1252 | *height = 0; |
| 1253 | *bytesPerValue = 0; |
| 1254 | *buffer = 0; |
| 1255 | return GL_FALSE; |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1256 | } |
| 1257 | |
| 1258 | |
| 1259 | void XMesaFlush( XMesaContext c ) |
| 1260 | { |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1261 | if (c && c->xm_visual->display) { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1262 | #ifdef XFree86Server |
| 1263 | /* NOT_NEEDED */ |
| 1264 | #else |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1265 | XSync( c->xm_visual->display, False ); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1266 | #endif |
| 1267 | } |
| 1268 | } |
| 1269 | |
| 1270 | |
| 1271 | |
| 1272 | const char *XMesaGetString( XMesaContext c, int name ) |
| 1273 | { |
| 1274 | (void) c; |
| 1275 | if (name==XMESA_VERSION) { |
| 1276 | return "5.0"; |
| 1277 | } |
| 1278 | else if (name==XMESA_EXTENSIONS) { |
| 1279 | return ""; |
| 1280 | } |
| 1281 | else { |
| 1282 | return NULL; |
| 1283 | } |
| 1284 | } |
| 1285 | |
| 1286 | |
| 1287 | |
| 1288 | XMesaBuffer XMesaFindBuffer( XMesaDisplay *dpy, XMesaDrawable d ) |
| 1289 | { |
| 1290 | XMesaBuffer b; |
| 1291 | for (b=XMesaBufferList; b; b=b->Next) { |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1292 | if (b->drawable == d && b->xm_visual->display == dpy) { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1293 | return b; |
| 1294 | } |
| 1295 | } |
| 1296 | return NULL; |
| 1297 | } |
| 1298 | |
| 1299 | |
| 1300 | /** |
| 1301 | * Free/destroy all XMesaBuffers associated with given display. |
| 1302 | */ |
| 1303 | void xmesa_destroy_buffers_on_display(XMesaDisplay *dpy) |
| 1304 | { |
| 1305 | XMesaBuffer b, next; |
| 1306 | for (b = XMesaBufferList; b; b = next) { |
| 1307 | next = b->Next; |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1308 | if (b->xm_visual->display == dpy) { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1309 | xmesa_free_buffer(b); |
| 1310 | } |
| 1311 | } |
| 1312 | } |
| 1313 | |
| 1314 | |
| 1315 | /* |
| 1316 | * Look for XMesaBuffers whose X window has been destroyed. |
| 1317 | * Deallocate any such XMesaBuffers. |
| 1318 | */ |
| 1319 | void XMesaGarbageCollect( void ) |
| 1320 | { |
| 1321 | XMesaBuffer b, next; |
| 1322 | for (b=XMesaBufferList; b; b=next) { |
| 1323 | next = b->Next; |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1324 | if (b->xm_visual && |
| 1325 | b->xm_visual->display && |
| 1326 | b->drawable && |
| 1327 | b->type == WINDOW) { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1328 | #ifdef XFree86Server |
| 1329 | /* NOT_NEEDED */ |
| 1330 | #else |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1331 | XSync(b->xm_visual->display, False); |
| 1332 | if (!window_exists( b->xm_visual->display, b->drawable )) { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1333 | /* found a dead window, free the ancillary info */ |
| 1334 | XMesaDestroyBuffer( b ); |
| 1335 | } |
| 1336 | #endif |
| 1337 | } |
| 1338 | } |
| 1339 | } |
| 1340 | |
| 1341 | |
| 1342 | unsigned long XMesaDitherColor( XMesaContext xmesa, GLint x, GLint y, |
| 1343 | GLfloat red, GLfloat green, |
| 1344 | GLfloat blue, GLfloat alpha ) |
| 1345 | { |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1346 | /* no longer supported */ |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1347 | return 0; |
| 1348 | } |
| 1349 | |
| 1350 | |
| 1351 | /* |
| 1352 | * This is typically called when the window size changes and we need |
| 1353 | * to reallocate the buffer's back/depth/stencil/accum buffers. |
| 1354 | */ |
| 1355 | PUBLIC void |
| 1356 | XMesaResizeBuffers( XMesaBuffer b ) |
| 1357 | { |
| 1358 | GET_CURRENT_CONTEXT(ctx); |
Brian | 749d723 | 2007-12-07 07:57:54 -0700 | [diff] [blame] | 1359 | XMesaContext xmctx = xmesa_context(ctx); |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1360 | if (!xmctx) |
| 1361 | return; |
| 1362 | xmesa_check_and_update_buffer_size(xmctx, b); |
| 1363 | } |
| 1364 | |
| 1365 | |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1366 | |
| 1367 | |
| 1368 | PUBLIC void |
| 1369 | XMesaBindTexImage(XMesaDisplay *dpy, XMesaBuffer drawable, int buffer, |
| 1370 | const int *attrib_list) |
| 1371 | { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1372 | } |
| 1373 | |
| 1374 | |
| 1375 | |
| 1376 | PUBLIC void |
| 1377 | XMesaReleaseTexImage(XMesaDisplay *dpy, XMesaBuffer drawable, int buffer) |
| 1378 | { |
Brian | ef25c49 | 2007-10-31 14:19:09 -0600 | [diff] [blame] | 1379 | } |
| 1380 | |