src/mesa/drivers/dri/nouveau/nouveau_context.c

   1 /*
   2  * Copyright (C) 2009-2010 Francisco Jerez.
   3  * All Rights Reserved.
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining
   6  * a copy of this software and associated documentation files (the
   7  * "Software"), to deal in the Software without restriction, including
   8  * without limitation the rights to use, copy, modify, merge, publish,
   9  * distribute, sublicense, and/or sell copies of the Software, and to
  10  * permit persons to whom the Software is furnished to do so, subject to
  11  * the following conditions:
  12  *
  13  * The above copyright notice and this permission notice (including the
  14  * next paragraph) shall be included in all copies or substantial
  15  * portions of the Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  18  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  19  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  20  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  21  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  22  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  23  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  24  *
  25  */
  26
  27 #include <stdbool.h>
  28 #include "nouveau_driver.h"
  29 #include "nouveau_context.h"
  30 #include "nouveau_bufferobj.h"
  31 #include "nouveau_fbo.h"
  32 #include "nv_object.xml.h"
  33
  34 #include "main/api_exec.h"
  35 #include "main/dd.h"
  36 #include "main/framebuffer.h"
  37 #include "main/fbobject.h"
  38 #include "main/light.h"
  39 #include "main/state.h"
  40 #include "main/version.h"
  41 #include "main/vtxfmt.h"
  42 #include "drivers/common/meta.h"
  43 #include "drivers/common/driverfuncs.h"
  44 #include "swrast/swrast.h"
  45 #include "swrast/s_context.h"
  46 #include "vbo/vbo.h"
  47 #include "tnl/tnl.h"
  48 #include "tnl/t_context.h"
  49
  50 GLboolean
  51 nouveau_context_create(gl_api api,
  52                        const struct gl_config *visual, __DRIcontext *dri_ctx,
  53                        unsigned major_version,
  54                        unsigned minor_version,
  55                        uint32_t flags,
  56                        bool notify_reset,
  57                        unsigned *error,
  58                        void *share_ctx)
  59 {
  60         __DRIscreen *dri_screen = dri_ctx->driScreenPriv;
  61         struct nouveau_screen *screen = dri_screen->driverPrivate;
  62         struct nouveau_context *nctx;
  63         struct gl_context *ctx;
  64
  65         if (flags & ~__DRI_CTX_FLAG_DEBUG) {
  66                 *error = __DRI_CTX_ERROR_UNKNOWN_FLAG;
  67                 return false;
  68         }
  69
  70         if (notify_reset) {
  71                 *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE;
  72                 return false;
  73         }
  74
  75         ctx = screen->driver->context_create(screen, visual, share_ctx);
  76         if (!ctx) {
  77                 *error = __DRI_CTX_ERROR_NO_MEMORY;
  78                 return GL_FALSE;
  79         }
  80
  81         driContextSetFlags(ctx, flags);
  82
  83         nctx = to_nouveau_context(ctx);
  84         nctx->dri_context = dri_ctx;
  85         dri_ctx->driverPrivate = ctx;
  86
  87         _mesa_compute_version(ctx);
  88         if (ctx->Version < major_version * 10 + minor_version) {
  89            nouveau_context_destroy(dri_ctx);
  90            *error = __DRI_CTX_ERROR_BAD_VERSION;
  91            return GL_FALSE;
  92         }
  93
  94         /* Exec table initialization requires the version to be computed */
  95         _mesa_initialize_dispatch_tables(ctx);
  96         _mesa_initialize_vbo_vtxfmt(ctx);
  97
  98         if (nouveau_bo_new(context_dev(ctx), NOUVEAU_BO_VRAM, 0, 4096,
  99                            NULL, &nctx->fence)) {
 100                 nouveau_context_destroy(dri_ctx);
 101                 *error = __DRI_CTX_ERROR_NO_MEMORY;
 102                 return GL_FALSE;
 103         }
 104
 105         *error = __DRI_CTX_ERROR_SUCCESS;
 106         return GL_TRUE;
 107 }
 108
 109 GLboolean
 110 nouveau_context_init(struct gl_context *ctx, struct nouveau_screen *screen,
 111                      const struct gl_config *visual, struct gl_context *share_ctx)
 112 {
 113         struct nouveau_context *nctx = to_nouveau_context(ctx);
 114         struct dd_function_table functions;
 115         int ret;
 116
 117         nctx->screen = screen;
 118         nctx->fallback = HWTNL;
 119
 120         /* Initialize the function pointers. */
 121         _mesa_init_driver_functions(&functions);
 122         nouveau_driver_functions_init(&functions);
 123         nouveau_bufferobj_functions_init(&functions);
 124         nouveau_texture_functions_init(&functions);
 125         nouveau_fbo_functions_init(&functions);
 126
 127         /* Initialize the mesa context. */
 128         _mesa_initialize_context(ctx, API_OPENGL_COMPAT, visual,
 129                                  share_ctx, &functions);
 130
 131         nouveau_state_init(ctx);
 132         nouveau_scratch_init(ctx);
 133         _mesa_meta_init(ctx);
 134         _swrast_CreateContext(ctx);
 135         _vbo_CreateContext(ctx);
 136         _tnl_CreateContext(ctx);
 137         nouveau_span_functions_init(ctx);
 138         _mesa_allow_light_in_model(ctx, GL_FALSE);
 139
 140         /* Allocate a hardware channel. */
 141         ret = nouveau_object_new(&context_dev(ctx)->object, 0xbeef0000,
 142                                  NOUVEAU_FIFO_CHANNEL_CLASS,
 143                                  &(struct nv04_fifo){
 144                                         .vram = 0xbeef0201,
 145                                         .gart = 0xbeef0202
 146                                  }, sizeof(struct nv04_fifo), &nctx->hw.chan);
 147         if (ret) {
 148                 nouveau_error("Error initializing the FIFO.\n");
 149                 return GL_FALSE;
 150         }
 151
 152         /* Allocate a client (thread data) */
 153         ret = nouveau_client_new(context_dev(ctx), &nctx->hw.client);
 154         if (ret) {
 155                 nouveau_error("Error creating thread data\n");
 156                 return GL_FALSE;
 157         }
 158
 159         /* Allocate a push buffer */
 160         ret = nouveau_pushbuf_new(nctx->hw.client, nctx->hw.chan, 4,
 161                                   512 * 1024, true, &nctx->hw.pushbuf);
 162         if (ret) {
 163                 nouveau_error("Error allocating DMA push buffer\n");
 164                 return GL_FALSE;
 165         }
 166
 167         /* Allocate buffer context */
 168         ret = nouveau_bufctx_new(nctx->hw.client, 16, &nctx->hw.bufctx);
 169         if (ret) {
 170                 nouveau_error("Error allocating buffer context\n");
 171                 return GL_FALSE;
 172         }
 173
 174         nctx->hw.pushbuf->user_priv = nctx->hw.bufctx;
 175
 176         /* Allocate NULL object */
 177         ret = nouveau_object_new(nctx->hw.chan, 0x00000000, NV01_NULL_CLASS,
 178                                  NULL, 0, &nctx->hw.null);
 179         if (ret) {
 180                 nouveau_error("Error allocating NULL object\n");
 181                 return GL_FALSE;
 182         }
 183
 184         /* Enable any supported extensions. */
 185         ctx->Extensions.EXT_blend_color = true;
 186         ctx->Extensions.EXT_blend_minmax = true;
 187         ctx->Extensions.EXT_framebuffer_blit = true;
 188         ctx->Extensions.EXT_texture_filter_anisotropic = true;
 189         ctx->Extensions.NV_texture_env_combine4 = true;
 190
 191         return GL_TRUE;
 192 }
 193
 194 void
 195 nouveau_context_deinit(struct gl_context *ctx)
 196 {
 197         struct nouveau_context *nctx = to_nouveau_context(ctx);
 198
 199         if (TNL_CONTEXT(ctx))
 200                 _tnl_DestroyContext(ctx);
 201
 202         if (vbo_context(ctx))
 203                 _vbo_DestroyContext(ctx);
 204
 205         if (SWRAST_CONTEXT(ctx))
 206                 _swrast_DestroyContext(ctx);
 207
 208         if (ctx->Meta)
 209                 _mesa_meta_free(ctx);
 210
 211         nouveau_bufctx_del(&nctx->hw.bufctx);
 212         nouveau_pushbuf_del(&nctx->hw.pushbuf);
 213         nouveau_client_del(&nctx->hw.client);
 214         nouveau_object_del(&nctx->hw.chan);
 215
 216         nouveau_scratch_destroy(ctx);
 217         _mesa_free_context_data(ctx);
 218 }
 219
 220 void
 221 nouveau_context_destroy(__DRIcontext *dri_ctx)
 222 {
 223         struct nouveau_context *nctx = dri_ctx->driverPrivate;
 224         struct gl_context *ctx = &nctx->base;
 225
 226         nouveau_bo_ref(NULL, &nctx->fence);
 227         context_drv(ctx)->context_destroy(ctx);
 228 }
 229
 230 void
 231 nouveau_update_renderbuffers(__DRIcontext *dri_ctx, __DRIdrawable *draw)
 232 {
 233         struct gl_context *ctx = dri_ctx->driverPrivate;
 234         struct nouveau_context *nctx = to_nouveau_context(ctx);
 235         __DRIscreen *screen = dri_ctx->driScreenPriv;
 236         struct gl_framebuffer *fb = draw->driverPrivate;
 237         struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb);
 238         unsigned int attachments[10];
 239         __DRIbuffer *buffers = NULL;
 240         int i = 0, count, ret;
 241
 242         if (draw->lastStamp == draw->dri2.stamp)
 243                 return;
 244         draw->lastStamp = draw->dri2.stamp;
 245
 246         if (nfb->need_front)
 247                 attachments[i++] = __DRI_BUFFER_FRONT_LEFT;
 248         if (fb->Visual.doubleBufferMode)
 249                 attachments[i++] = __DRI_BUFFER_BACK_LEFT;
 250         if (fb->Visual.haveDepthBuffer && fb->Visual.haveStencilBuffer)
 251                 attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL;
 252         else if (fb->Visual.haveDepthBuffer)
 253                 attachments[i++] = __DRI_BUFFER_DEPTH;
 254         else if (fb->Visual.haveStencilBuffer)
 255                 attachments[i++] = __DRI_BUFFER_STENCIL;
 256
 257         buffers = (*screen->dri2.loader->getBuffers)(draw, &draw->w, &draw->h,
 258                                                      attachments, i, &count,
 259                                                      draw->loaderPrivate);
 260         if (buffers == NULL)
 261                 return;
 262
 263         for (i = 0; i < count; i++) {
 264                 struct gl_renderbuffer *rb;
 265                 struct nouveau_surface *s;
 266                 uint32_t old_name;
 267                 int index;
 268
 269                 switch (buffers[i].attachment) {
 270                 case __DRI_BUFFER_FRONT_LEFT:
 271                 case __DRI_BUFFER_FAKE_FRONT_LEFT:
 272                         index = BUFFER_FRONT_LEFT;
 273                         break;
 274                 case __DRI_BUFFER_BACK_LEFT:
 275                         index = BUFFER_BACK_LEFT;
 276                         break;
 277                 case __DRI_BUFFER_DEPTH:
 278                 case __DRI_BUFFER_DEPTH_STENCIL:
 279                         index = BUFFER_DEPTH;
 280                         break;
 281                 case __DRI_BUFFER_STENCIL:
 282                         index = BUFFER_STENCIL;
 283                         break;
 284                 default:
 285                         assert(0);
 286                 }
 287
 288                 rb = fb->Attachment[index].Renderbuffer;
 289                 s = &to_nouveau_renderbuffer(rb)->surface;
 290
 291                 s->width = draw->w;
 292                 s->height = draw->h;
 293                 s->pitch = buffers[i].pitch;
 294                 s->cpp = buffers[i].cpp;
 295
 296                 if (index == BUFFER_DEPTH && s->bo) {
 297                         ret = nouveau_bo_name_get(s->bo, &old_name);
 298                         /*
 299                          * Disable fast Z clears in the next frame, the
 300                          * depth buffer contents are undefined.
 301                          */
 302                         if (!ret && old_name != buffers[i].name)
 303                                 nctx->hierz.clear_seq = 0;
 304                 }
 305
 306                 nouveau_bo_ref(NULL, &s->bo);
 307                 ret = nouveau_bo_name_ref(context_dev(ctx),
 308                                           buffers[i].name, &s->bo);
 309                 assert(!ret);
 310         }
 311
 312         _mesa_resize_framebuffer(ctx, fb, draw->w, draw->h);
 313 }
 314
 315 static void
 316 update_framebuffer(__DRIcontext *dri_ctx, __DRIdrawable *draw,
 317                    int *stamp)
 318 {
 319         struct gl_context *ctx = dri_ctx->driverPrivate;
 320         struct gl_framebuffer *fb = draw->driverPrivate;
 321
 322         *stamp = draw->dri2.stamp;
 323
 324         nouveau_update_renderbuffers(dri_ctx, draw);
 325         _mesa_resize_framebuffer(ctx, fb, draw->w, draw->h);
 326
 327         /* Clean up references to the old framebuffer objects. */
 328         context_dirty(ctx, FRAMEBUFFER);
 329         nouveau_bufctx_reset(to_nouveau_context(ctx)->hw.bufctx, BUFCTX_FB);
 330         PUSH_KICK(context_push(ctx));
 331 }
 332
 333 GLboolean
 334 nouveau_context_make_current(__DRIcontext *dri_ctx, __DRIdrawable *dri_draw,
 335                              __DRIdrawable *dri_read)
 336 {
 337         if (dri_ctx) {
 338                 struct nouveau_context *nctx = dri_ctx->driverPrivate;
 339                 struct gl_context *ctx = &nctx->base;
 340
 341                 /* Ask the X server for new renderbuffers. */
 342                 if (dri_draw->driverPrivate != ctx->WinSysDrawBuffer)
 343                         update_framebuffer(dri_ctx, dri_draw,
 344                                            &dri_ctx->dri2.draw_stamp);
 345
 346                 if (dri_draw != dri_read &&
 347                     dri_read->driverPrivate != ctx->WinSysReadBuffer)
 348                         update_framebuffer(dri_ctx, dri_read,
 349                                            &dri_ctx->dri2.read_stamp);
 350
 351                 /* Pass it down to mesa. */
 352                 _mesa_make_current(ctx, dri_draw->driverPrivate,
 353                                    dri_read->driverPrivate);
 354                 _mesa_update_state(ctx);
 355
 356         } else {
 357                 _mesa_make_current(NULL, NULL, NULL);
 358         }
 359
 360         return GL_TRUE;
 361 }
 362
 363 GLboolean
 364 nouveau_context_unbind(__DRIcontext *dri_ctx)
 365 {
 366         /* Unset current context and dispatch table */
 367         _mesa_make_current(NULL, NULL, NULL);
 368
 369         return GL_TRUE;
 370 }
 371
 372 void
 373 nouveau_fallback(struct gl_context *ctx, enum nouveau_fallback mode)
 374 {
 375         struct nouveau_context *nctx = to_nouveau_context(ctx);
 376
 377         nctx->fallback = MAX2(HWTNL, mode);
 378
 379         if (mode < SWRAST) {
 380                 nouveau_state_emit(ctx);
 381 #if 0
 382                 nouveau_bo_state_emit(ctx);
 383 #endif
 384         } else {
 385                 PUSH_KICK(context_push(ctx));
 386         }
 387 }
 388
 389 static void
 390 validate_framebuffer(__DRIcontext *dri_ctx, __DRIdrawable *draw,
 391                      int *stamp)
 392 {
 393         struct gl_framebuffer *fb = draw->driverPrivate;
 394         struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb);
 395         GLboolean need_front =
 396                 (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT ||
 397                  fb->_ColorReadBufferIndex == BUFFER_FRONT_LEFT);
 398
 399         if (nfb->need_front != need_front) {
 400                 nfb->need_front = need_front;
 401                 dri2InvalidateDrawable(draw);
 402         }
 403
 404         if (draw->dri2.stamp != *stamp)
 405                 update_framebuffer(dri_ctx, draw, stamp);
 406 }
 407
 408 void
 409 nouveau_validate_framebuffer(struct gl_context *ctx)
 410 {
 411         __DRIcontext *dri_ctx = to_nouveau_context(ctx)->dri_context;
 412         __DRIdrawable *dri_draw = dri_ctx->driDrawablePriv;
 413         __DRIdrawable *dri_read = dri_ctx->driReadablePriv;
 414
 415         if (_mesa_is_winsys_fbo(ctx->DrawBuffer))
 416                 validate_framebuffer(dri_ctx, dri_draw,
 417                                      &dri_ctx->dri2.draw_stamp);
 418
 419         if (_mesa_is_winsys_fbo(ctx->ReadBuffer))
 420                 validate_framebuffer(dri_ctx, dri_read,
 421                                      &dri_ctx->dri2.read_stamp);
 422
 423         if (ctx->NewState & _NEW_BUFFERS)
 424                 _mesa_update_state(ctx);
 425 }