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 <stdio.h> 29 #include "nouveau_driver.h" 30 #include "nouveau_context.h" 31 #include "nouveau_bufferobj.h" 32 #include "nouveau_fbo.h" 33 #include "nv_object.xml.h" 34 35 #include "main/api_exec.h" 36 #include "main/dd.h" 37 #include "main/framebuffer.h" 38 #include "main/fbobject.h" 39 #include "main/light.h" 40 #include "main/state.h" 41 #include "main/version.h" 42 #include "main/vtxfmt.h" 43 #include "drivers/common/meta.h" 44 #include "drivers/common/driverfuncs.h" 45 #include "swrast/swrast.h" 46 #include "swrast/s_context.h" 47 #include "vbo/vbo.h" 48 #include "tnl/tnl.h" 49 #include "tnl/t_context.h" 50 51 GLboolean 52 nouveau_context_create(gl_api api, 53 const struct gl_config *visual, __DRIcontext *dri_ctx, 54 unsigned major_version, 55 unsigned minor_version, 56 uint32_t flags, 57 bool notify_reset, 58 unsigned *error, 59 void *share_ctx) 60 { 61 __DRIscreen *dri_screen = dri_ctx->driScreenPriv; 62 struct nouveau_screen *screen = dri_screen->driverPrivate; 63 struct nouveau_context *nctx; 64 struct gl_context *ctx; 65 66 if (flags & ~__DRI_CTX_FLAG_DEBUG) { 67 *error = __DRI_CTX_ERROR_UNKNOWN_FLAG; 68 return false; 69 } 70 71 if (notify_reset) { 72 *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE; 73 return false; 74 } 75 76 ctx = screen->driver->context_create(screen, api, visual, share_ctx); 77 if (!ctx) { 78 *error = __DRI_CTX_ERROR_NO_MEMORY; 79 return GL_FALSE; 80 } 81 82 driContextSetFlags(ctx, flags); 83 84 nctx = to_nouveau_context(ctx); 85 nctx->dri_context = dri_ctx; 86 dri_ctx->driverPrivate = ctx; 87 88 _mesa_compute_version(ctx); 89 if (ctx->Version < major_version * 10 + minor_version) { 90 nouveau_context_destroy(dri_ctx); 91 *error = __DRI_CTX_ERROR_BAD_VERSION; 92 return GL_FALSE; 93 } 94 95 /* Exec table initialization requires the version to be computed */ 96 _mesa_initialize_dispatch_tables(ctx); 97 _mesa_initialize_vbo_vtxfmt(ctx); 98 99 if (nouveau_bo_new(context_dev(ctx), NOUVEAU_BO_VRAM, 0, 4096, 100 NULL, &nctx->fence)) { 101 nouveau_context_destroy(dri_ctx); 102 *error = __DRI_CTX_ERROR_NO_MEMORY; 103 return GL_FALSE; 104 } 105 106 *error = __DRI_CTX_ERROR_SUCCESS; 107 return GL_TRUE; 108 } 109 110 GLboolean 111 nouveau_context_init(struct gl_context *ctx, gl_api api, 112 struct nouveau_screen *screen, 113 const struct gl_config *visual, struct gl_context *share_ctx) 114 { 115 struct nouveau_context *nctx = to_nouveau_context(ctx); 116 struct dd_function_table functions; 117 int ret; 118 119 nctx->screen = screen; 120 nctx->fallback = HWTNL; 121 122 /* Initialize the function pointers. */ 123 _mesa_init_driver_functions(&functions); 124 nouveau_driver_functions_init(&functions); 125 nouveau_bufferobj_functions_init(&functions); 126 nouveau_texture_functions_init(&functions); 127 nouveau_fbo_functions_init(&functions); 128 129 /* Initialize the mesa context. */ 130 if (!_mesa_initialize_context(ctx, api, visual, share_ctx, &functions)) 131 return GL_FALSE; 132 133 nouveau_state_init(ctx); 134 nouveau_scratch_init(ctx); 135 _mesa_meta_init(ctx); 136 _swrast_CreateContext(ctx); 137 _vbo_CreateContext(ctx); 138 _tnl_CreateContext(ctx); 139 nouveau_span_functions_init(ctx); 140 _mesa_allow_light_in_model(ctx, GL_FALSE); 141 142 /* Allocate a hardware channel. */ 143 ret = nouveau_object_new(&context_dev(ctx)->object, 0xbeef0000, 144 NOUVEAU_FIFO_CHANNEL_CLASS, 145 &(struct nv04_fifo){ 146 .vram = 0xbeef0201, 147 .gart = 0xbeef0202 148 }, sizeof(struct nv04_fifo), &nctx->hw.chan); 149 if (ret) { 150 nouveau_error("Error initializing the FIFO.\n"); 151 return GL_FALSE; 152 } 153 154 /* Allocate a client (thread data) */ 155 ret = nouveau_client_new(context_dev(ctx), &nctx->hw.client); 156 if (ret) { 157 nouveau_error("Error creating thread data\n"); 158 return GL_FALSE; 159 } 160 161 /* Allocate a push buffer */ 162 ret = nouveau_pushbuf_new(nctx->hw.client, nctx->hw.chan, 4, 163 512 * 1024, true, &nctx->hw.pushbuf); 164 if (ret) { 165 nouveau_error("Error allocating DMA push buffer\n"); 166 return GL_FALSE; 167 } 168 169 /* Allocate buffer context */ 170 ret = nouveau_bufctx_new(nctx->hw.client, 16, &nctx->hw.bufctx); 171 if (ret) { 172 nouveau_error("Error allocating buffer context\n"); 173 return GL_FALSE; 174 } 175 176 nctx->hw.pushbuf->user_priv = nctx->hw.bufctx; 177 178 /* Allocate NULL object */ 179 ret = nouveau_object_new(nctx->hw.chan, 0x00000000, NV01_NULL_CLASS, 180 NULL, 0, &nctx->hw.null); 181 if (ret) { 182 nouveau_error("Error allocating NULL object\n"); 183 return GL_FALSE; 184 } 185 186 /* Enable any supported extensions. */ 187 ctx->Extensions.EXT_blend_color = true; 188 ctx->Extensions.EXT_blend_minmax = true; 189 ctx->Extensions.EXT_texture_filter_anisotropic = true; 190 ctx->Extensions.NV_texture_env_combine4 = true; 191 ctx->Const.MaxDrawBuffers = ctx->Const.MaxColorAttachments = 1; 192 193 /* This effectively disables 3D textures */ 194 ctx->Const.Max3DTextureLevels = 1; 195 196 return GL_TRUE; 197 } 198 199 void 200 nouveau_context_deinit(struct gl_context *ctx) 201 { 202 struct nouveau_context *nctx = to_nouveau_context(ctx); 203 204 if (TNL_CONTEXT(ctx)) 205 _tnl_DestroyContext(ctx); 206 207 if (vbo_context(ctx)) 208 _vbo_DestroyContext(ctx); 209 210 if (SWRAST_CONTEXT(ctx)) 211 _swrast_DestroyContext(ctx); 212 213 if (ctx->Meta) 214 _mesa_meta_free(ctx); 215 216 nouveau_bufctx_del(&nctx->hw.bufctx); 217 nouveau_pushbuf_del(&nctx->hw.pushbuf); 218 nouveau_client_del(&nctx->hw.client); 219 nouveau_object_del(&nctx->hw.chan); 220 221 nouveau_scratch_destroy(ctx); 222 _mesa_free_context_data(ctx); 223 } 224 225 void 226 nouveau_context_destroy(__DRIcontext *dri_ctx) 227 { 228 struct nouveau_context *nctx = dri_ctx->driverPrivate; 229 struct gl_context *ctx = &nctx->base; 230 231 nouveau_bo_ref(NULL, &nctx->fence); 232 context_drv(ctx)->context_destroy(ctx); 233 } 234 235 void 236 nouveau_update_renderbuffers(__DRIcontext *dri_ctx, __DRIdrawable *draw) 237 { 238 struct gl_context *ctx = dri_ctx->driverPrivate; 239 struct nouveau_context *nctx = to_nouveau_context(ctx); 240 __DRIscreen *screen = dri_ctx->driScreenPriv; 241 struct gl_framebuffer *fb = draw->driverPrivate; 242 struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb); 243 unsigned int attachments[10]; 244 __DRIbuffer *buffers = NULL; 245 int i = 0, count, ret; 246 247 if (draw->lastStamp == draw->dri2.stamp) 248 return; 249 draw->lastStamp = draw->dri2.stamp; 250 251 if (nfb->need_front) 252 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 253 if (fb->Visual.doubleBufferMode) 254 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 255 if (fb->Visual.haveDepthBuffer && fb->Visual.haveStencilBuffer) 256 attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL; 257 else if (fb->Visual.haveDepthBuffer) 258 attachments[i++] = __DRI_BUFFER_DEPTH; 259 else if (fb->Visual.haveStencilBuffer) 260 attachments[i++] = __DRI_BUFFER_STENCIL; 261 262 buffers = screen->dri2.loader->getBuffers(draw, &draw->w, &draw->h, 263 attachments, i, &count, 264 draw->loaderPrivate); 265 if (buffers == NULL) 266 return; 267 268 for (i = 0; i < count; i++) { 269 struct gl_renderbuffer *rb; 270 struct nouveau_surface *s; 271 uint32_t old_name; 272 int index; 273 274 switch (buffers[i].attachment) { 275 case __DRI_BUFFER_FRONT_LEFT: 276 case __DRI_BUFFER_FAKE_FRONT_LEFT: 277 index = BUFFER_FRONT_LEFT; 278 break; 279 case __DRI_BUFFER_BACK_LEFT: 280 index = BUFFER_BACK_LEFT; 281 break; 282 case __DRI_BUFFER_DEPTH: 283 case __DRI_BUFFER_DEPTH_STENCIL: 284 index = BUFFER_DEPTH; 285 break; 286 case __DRI_BUFFER_STENCIL: 287 index = BUFFER_STENCIL; 288 break; 289 default: 290 assert(0); 291 } 292 293 rb = fb->Attachment[index].Renderbuffer; 294 s = &to_nouveau_renderbuffer(rb)->surface; 295 296 s->width = draw->w; 297 s->height = draw->h; 298 s->pitch = buffers[i].pitch; 299 s->cpp = buffers[i].cpp; 300 301 if (index == BUFFER_DEPTH && s->bo) { 302 ret = nouveau_bo_name_get(s->bo, &old_name); 303 /* 304 * Disable fast Z clears in the next frame, the 305 * depth buffer contents are undefined. 306 */ 307 if (!ret && old_name != buffers[i].name) 308 nctx->hierz.clear_seq = 0; 309 } 310 311 nouveau_bo_ref(NULL, &s->bo); 312 ret = nouveau_bo_name_ref(context_dev(ctx), 313 buffers[i].name, &s->bo); 314 assert(!ret); 315 } 316 317 _mesa_resize_framebuffer(ctx, fb, draw->w, draw->h); 318 } 319 320 static void 321 update_framebuffer(__DRIcontext *dri_ctx, __DRIdrawable *draw, 322 int *stamp) 323 { 324 struct gl_context *ctx = dri_ctx->driverPrivate; 325 struct gl_framebuffer *fb = draw->driverPrivate; 326 327 *stamp = draw->dri2.stamp; 328 329 nouveau_update_renderbuffers(dri_ctx, draw); 330 _mesa_resize_framebuffer(ctx, fb, draw->w, draw->h); 331 332 /* Clean up references to the old framebuffer objects. */ 333 context_dirty(ctx, FRAMEBUFFER); 334 nouveau_bufctx_reset(to_nouveau_context(ctx)->hw.bufctx, BUFCTX_FB); 335 PUSH_KICK(context_push(ctx)); 336 } 337 338 GLboolean 339 nouveau_context_make_current(__DRIcontext *dri_ctx, __DRIdrawable *dri_draw, 340 __DRIdrawable *dri_read) 341 { 342 if (dri_ctx) { 343 struct nouveau_context *nctx = dri_ctx->driverPrivate; 344 struct gl_context *ctx = &nctx->base; 345 346 /* Ask the X server for new renderbuffers. */ 347 if (dri_draw->driverPrivate != ctx->WinSysDrawBuffer) 348 update_framebuffer(dri_ctx, dri_draw, 349 &dri_ctx->dri2.draw_stamp); 350 351 if (dri_draw != dri_read && 352 dri_read->driverPrivate != ctx->WinSysReadBuffer) 353 update_framebuffer(dri_ctx, dri_read, 354 &dri_ctx->dri2.read_stamp); 355 356 /* Pass it down to mesa. */ 357 _mesa_make_current(ctx, dri_draw->driverPrivate, 358 dri_read->driverPrivate); 359 _mesa_update_state(ctx); 360 361 } else { 362 _mesa_make_current(NULL, NULL, NULL); 363 } 364 365 return GL_TRUE; 366 } 367 368 GLboolean 369 nouveau_context_unbind(__DRIcontext *dri_ctx) 370 { 371 /* Unset current context and dispatch table */ 372 _mesa_make_current(NULL, NULL, NULL); 373 374 return GL_TRUE; 375 } 376 377 void 378 nouveau_fallback(struct gl_context *ctx, enum nouveau_fallback mode) 379 { 380 struct nouveau_context *nctx = to_nouveau_context(ctx); 381 382 nctx->fallback = MAX2(HWTNL, mode); 383 384 if (mode < SWRAST) { 385 nouveau_state_emit(ctx); 386 #if 0 387 nouveau_bo_state_emit(ctx); 388 #endif 389 } else { 390 PUSH_KICK(context_push(ctx)); 391 } 392 } 393 394 static void 395 validate_framebuffer(__DRIcontext *dri_ctx, __DRIdrawable *draw, 396 int *stamp) 397 { 398 struct gl_framebuffer *fb = draw->driverPrivate; 399 struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb); 400 GLboolean need_front = 401 (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT || 402 fb->_ColorReadBufferIndex == BUFFER_FRONT_LEFT); 403 404 if (nfb->need_front != need_front) { 405 nfb->need_front = need_front; 406 dri2InvalidateDrawable(draw); 407 } 408 409 if (draw->dri2.stamp != *stamp) 410 update_framebuffer(dri_ctx, draw, stamp); 411 } 412 413 void 414 nouveau_validate_framebuffer(struct gl_context *ctx) 415 { 416 __DRIcontext *dri_ctx = to_nouveau_context(ctx)->dri_context; 417 __DRIdrawable *dri_draw = dri_ctx->driDrawablePriv; 418 __DRIdrawable *dri_read = dri_ctx->driReadablePriv; 419 420 if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) 421 validate_framebuffer(dri_ctx, dri_draw, 422 &dri_ctx->dri2.draw_stamp); 423 424 if (_mesa_is_winsys_fbo(ctx->ReadBuffer)) 425 validate_framebuffer(dri_ctx, dri_read, 426 &dri_ctx->dri2.read_stamp); 427 428 if (ctx->NewState & _NEW_BUFFERS) 429 _mesa_update_state(ctx); 430 } 431
