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 const struct __DriverContextConfig *ctx_config, 55 unsigned *error, 56 void *share_ctx) 57 { 58 __DRIscreen *dri_screen = dri_ctx->driScreenPriv; 59 struct nouveau_screen *screen = dri_screen->driverPrivate; 60 struct nouveau_context *nctx; 61 struct gl_context *ctx; 62 63 if (ctx_config->flags & ~(__DRI_CTX_FLAG_DEBUG | __DRI_CTX_FLAG_NO_ERROR)) { 64 *error = __DRI_CTX_ERROR_UNKNOWN_FLAG; 65 return false; 66 } 67 68 if (ctx_config->attribute_mask) { 69 *error = __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE; 70 return false; 71 } 72 73 ctx = screen->driver->context_create(screen, api, visual, share_ctx); 74 if (!ctx) { 75 *error = __DRI_CTX_ERROR_NO_MEMORY; 76 return GL_FALSE; 77 } 78 79 driContextSetFlags(ctx, ctx_config->flags); 80 81 nctx = to_nouveau_context(ctx); 82 nctx->dri_context = dri_ctx; 83 dri_ctx->driverPrivate = ctx; 84 85 _mesa_compute_version(ctx); 86 if (ctx->Version < (ctx_config->major_version * 10 + 87 ctx_config->minor_version)) { 88 nouveau_context_destroy(dri_ctx); 89 *error = __DRI_CTX_ERROR_BAD_VERSION; 90 return GL_FALSE; 91 } 92 93 /* Exec table initialization requires the version to be computed */ 94 _mesa_initialize_dispatch_tables(ctx); 95 _mesa_initialize_vbo_vtxfmt(ctx); 96 97 if (nouveau_bo_new(context_dev(ctx), NOUVEAU_BO_VRAM, 0, 4096, 98 NULL, &nctx->fence)) { 99 nouveau_context_destroy(dri_ctx); 100 *error = __DRI_CTX_ERROR_NO_MEMORY; 101 return GL_FALSE; 102 } 103 104 *error = __DRI_CTX_ERROR_SUCCESS; 105 return GL_TRUE; 106 } 107 108 GLboolean 109 nouveau_context_init(struct gl_context *ctx, gl_api api, 110 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 if (!_mesa_initialize_context(ctx, api, visual, share_ctx, &functions)) 129 return GL_FALSE; 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_texture_filter_anisotropic = true; 188 ctx->Extensions.NV_texture_env_combine4 = true; 189 ctx->Const.MaxDrawBuffers = ctx->Const.MaxColorAttachments = 1; 190 191 /* This effectively disables 3D textures */ 192 ctx->Const.Max3DTextureLevels = 1; 193 194 return GL_TRUE; 195 } 196 197 void 198 nouveau_context_deinit(struct gl_context *ctx) 199 { 200 struct nouveau_context *nctx = to_nouveau_context(ctx); 201 202 if (TNL_CONTEXT(ctx)) 203 _tnl_DestroyContext(ctx); 204 205 if (vbo_context(ctx)) 206 _vbo_DestroyContext(ctx); 207 208 if (SWRAST_CONTEXT(ctx)) 209 _swrast_DestroyContext(ctx); 210 211 if (ctx->Meta) 212 _mesa_meta_free(ctx); 213 214 nouveau_bufctx_del(&nctx->hw.bufctx); 215 nouveau_pushbuf_del(&nctx->hw.pushbuf); 216 nouveau_client_del(&nctx->hw.client); 217 nouveau_object_del(&nctx->hw.chan); 218 219 nouveau_scratch_destroy(ctx); 220 _mesa_free_context_data(ctx); 221 } 222 223 void 224 nouveau_context_destroy(__DRIcontext *dri_ctx) 225 { 226 struct nouveau_context *nctx = dri_ctx->driverPrivate; 227 struct gl_context *ctx = &nctx->base; 228 229 nouveau_bo_ref(NULL, &nctx->fence); 230 context_drv(ctx)->context_destroy(ctx); 231 } 232 233 void 234 nouveau_update_renderbuffers(__DRIcontext *dri_ctx, __DRIdrawable *draw) 235 { 236 struct gl_context *ctx = dri_ctx->driverPrivate; 237 struct nouveau_context *nctx = to_nouveau_context(ctx); 238 __DRIscreen *screen = dri_ctx->driScreenPriv; 239 struct gl_framebuffer *fb = draw->driverPrivate; 240 struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb); 241 unsigned int attachments[10]; 242 __DRIbuffer *buffers = NULL; 243 int i = 0, count, ret; 244 245 if (draw->lastStamp == draw->dri2.stamp) 246 return; 247 draw->lastStamp = draw->dri2.stamp; 248 249 if (nfb->need_front) 250 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 251 if (fb->Visual.doubleBufferMode) 252 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 253 if (fb->Visual.haveDepthBuffer && fb->Visual.haveStencilBuffer) 254 attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL; 255 else if (fb->Visual.haveDepthBuffer) 256 attachments[i++] = __DRI_BUFFER_DEPTH; 257 else if (fb->Visual.haveStencilBuffer) 258 attachments[i++] = __DRI_BUFFER_STENCIL; 259 260 buffers = screen->dri2.loader->getBuffers(draw, &draw->w, &draw->h, 261 attachments, i, &count, 262 draw->loaderPrivate); 263 if (buffers == NULL) 264 return; 265 266 for (i = 0; i < count; i++) { 267 struct gl_renderbuffer *rb; 268 struct nouveau_surface *s; 269 uint32_t old_name; 270 int index; 271 272 switch (buffers[i].attachment) { 273 case __DRI_BUFFER_FRONT_LEFT: 274 case __DRI_BUFFER_FAKE_FRONT_LEFT: 275 index = BUFFER_FRONT_LEFT; 276 break; 277 case __DRI_BUFFER_BACK_LEFT: 278 index = BUFFER_BACK_LEFT; 279 break; 280 case __DRI_BUFFER_DEPTH: 281 case __DRI_BUFFER_DEPTH_STENCIL: 282 index = BUFFER_DEPTH; 283 break; 284 case __DRI_BUFFER_STENCIL: 285 index = BUFFER_STENCIL; 286 break; 287 default: 288 assert(0); 289 } 290 291 rb = fb->Attachment[index].Renderbuffer; 292 s = &to_nouveau_renderbuffer(rb)->surface; 293 294 s->width = draw->w; 295 s->height = draw->h; 296 s->pitch = buffers[i].pitch; 297 s->cpp = buffers[i].cpp; 298 299 if (index == BUFFER_DEPTH && s->bo) { 300 ret = nouveau_bo_name_get(s->bo, &old_name); 301 /* 302 * Disable fast Z clears in the next frame, the 303 * depth buffer contents are undefined. 304 */ 305 if (!ret && old_name != buffers[i].name) 306 nctx->hierz.clear_seq = 0; 307 } 308 309 nouveau_bo_ref(NULL, &s->bo); 310 ret = nouveau_bo_name_ref(context_dev(ctx), 311 buffers[i].name, &s->bo); 312 assert(!ret); 313 } 314 315 _mesa_resize_framebuffer(ctx, fb, draw->w, draw->h); 316 } 317 318 static void 319 update_framebuffer(__DRIcontext *dri_ctx, __DRIdrawable *draw, 320 int *stamp) 321 { 322 struct gl_context *ctx = dri_ctx->driverPrivate; 323 struct gl_framebuffer *fb = draw->driverPrivate; 324 325 *stamp = draw->dri2.stamp; 326 327 nouveau_update_renderbuffers(dri_ctx, draw); 328 _mesa_resize_framebuffer(ctx, fb, draw->w, draw->h); 329 330 /* Clean up references to the old framebuffer objects. */ 331 context_dirty(ctx, FRAMEBUFFER); 332 nouveau_bufctx_reset(to_nouveau_context(ctx)->hw.bufctx, BUFCTX_FB); 333 PUSH_KICK(context_push(ctx)); 334 } 335 336 GLboolean 337 nouveau_context_make_current(__DRIcontext *dri_ctx, __DRIdrawable *dri_draw, 338 __DRIdrawable *dri_read) 339 { 340 if (dri_ctx) { 341 struct nouveau_context *nctx = dri_ctx->driverPrivate; 342 struct gl_context *ctx = &nctx->base; 343 344 /* Ask the X server for new renderbuffers. */ 345 if (dri_draw->driverPrivate != ctx->WinSysDrawBuffer) 346 update_framebuffer(dri_ctx, dri_draw, 347 &dri_ctx->dri2.draw_stamp); 348 349 if (dri_draw != dri_read && 350 dri_read->driverPrivate != ctx->WinSysReadBuffer) 351 update_framebuffer(dri_ctx, dri_read, 352 &dri_ctx->dri2.read_stamp); 353 354 /* Pass it down to mesa. */ 355 _mesa_make_current(ctx, dri_draw->driverPrivate, 356 dri_read->driverPrivate); 357 _mesa_update_state(ctx); 358 359 } else { 360 _mesa_make_current(NULL, NULL, NULL); 361 } 362 363 return GL_TRUE; 364 } 365 366 GLboolean 367 nouveau_context_unbind(__DRIcontext *dri_ctx) 368 { 369 /* Unset current context and dispatch table */ 370 _mesa_make_current(NULL, NULL, NULL); 371 372 return GL_TRUE; 373 } 374 375 void 376 nouveau_fallback(struct gl_context *ctx, enum nouveau_fallback mode) 377 { 378 struct nouveau_context *nctx = to_nouveau_context(ctx); 379 380 nctx->fallback = MAX2(HWTNL, mode); 381 382 if (mode < SWRAST) { 383 nouveau_state_emit(ctx); 384 #if 0 385 nouveau_bo_state_emit(ctx); 386 #endif 387 } else { 388 PUSH_KICK(context_push(ctx)); 389 } 390 } 391 392 static void 393 validate_framebuffer(__DRIcontext *dri_ctx, __DRIdrawable *draw, 394 int *stamp) 395 { 396 struct gl_framebuffer *fb = draw->driverPrivate; 397 struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb); 398 GLboolean need_front = 399 (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT || 400 fb->_ColorReadBufferIndex == BUFFER_FRONT_LEFT); 401 402 if (nfb->need_front != need_front) { 403 nfb->need_front = need_front; 404 dri2InvalidateDrawable(draw); 405 } 406 407 if (draw->dri2.stamp != *stamp) 408 update_framebuffer(dri_ctx, draw, stamp); 409 } 410 411 void 412 nouveau_validate_framebuffer(struct gl_context *ctx) 413 { 414 __DRIcontext *dri_ctx = to_nouveau_context(ctx)->dri_context; 415 __DRIdrawable *dri_draw = dri_ctx->driDrawablePriv; 416 __DRIdrawable *dri_read = dri_ctx->driReadablePriv; 417 418 if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) 419 validate_framebuffer(dri_ctx, dri_draw, 420 &dri_ctx->dri2.draw_stamp); 421 422 if (_mesa_is_winsys_fbo(ctx->ReadBuffer)) 423 validate_framebuffer(dri_ctx, dri_read, 424 &dri_ctx->dri2.read_stamp); 425 426 if (ctx->NewState & _NEW_BUFFERS) 427 _mesa_update_state(ctx); 428 } 429
