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/dd.h" 35 #include "main/framebuffer.h" 36 #include "main/fbobject.h" 37 #include "main/light.h" 38 #include "main/state.h" 39 #include "main/version.h" 40 #include "drivers/common/meta.h" 41 #include "drivers/common/driverfuncs.h" 42 #include "swrast/swrast.h" 43 #include "swrast/s_context.h" 44 #include "vbo/vbo.h" 45 #include "tnl/tnl.h" 46 #include "tnl/t_context.h" 47 48 GLboolean 49 nouveau_context_create(gl_api api, 50 const struct gl_config *visual, __DRIcontext *dri_ctx, 51 unsigned major_version, 52 unsigned minor_version, 53 uint32_t flags, 54 unsigned *error, 55 void *share_ctx) 56 { 57 __DRIscreen *dri_screen = dri_ctx->driScreenPriv; 58 struct nouveau_screen *screen = dri_screen->driverPrivate; 59 struct nouveau_context *nctx; 60 struct gl_context *ctx; 61 62 switch (api) { 63 case API_OPENGL: 64 /* Do after-the-fact version checking (below). 65 */ 66 break; 67 case API_OPENGLES: 68 /* NV10 and NV20 can support OpenGL ES 1.0 only. Older chips 69 * cannot do even that. 70 */ 71 if ((screen->device->chipset & 0xf0) == 0x00) { 72 *error = __DRI_CTX_ERROR_BAD_API; 73 return GL_FALSE; 74 } else if (minor_version != 0) { 75 *error = __DRI_CTX_ERROR_BAD_VERSION; 76 return GL_FALSE; 77 } 78 break; 79 case API_OPENGLES2: 80 case API_OPENGL_CORE: 81 *error = __DRI_CTX_ERROR_BAD_API; 82 return GL_FALSE; 83 } 84 85 /* API and flag filtering is handled in dri2CreateContextAttribs. 86 */ 87 (void) flags; 88 89 ctx = screen->driver->context_create(screen, visual, share_ctx); 90 if (!ctx) { 91 *error = __DRI_CTX_ERROR_NO_MEMORY; 92 return GL_FALSE; 93 } 94 95 nctx = to_nouveau_context(ctx); 96 nctx->dri_context = dri_ctx; 97 dri_ctx->driverPrivate = ctx; 98 99 _mesa_compute_version(ctx); 100 if (ctx->Version < major_version * 10 + minor_version) { 101 nouveau_context_destroy(dri_ctx); 102 *error = __DRI_CTX_ERROR_BAD_VERSION; 103 return GL_FALSE; 104 } 105 106 if (nouveau_bo_new(context_dev(ctx), NOUVEAU_BO_VRAM, 0, 4096, 107 NULL, &nctx->fence)) { 108 nouveau_context_destroy(dri_ctx); 109 *error = __DRI_CTX_ERROR_NO_MEMORY; 110 return GL_FALSE; 111 } 112 113 *error = __DRI_CTX_ERROR_SUCCESS; 114 return GL_TRUE; 115 } 116 117 GLboolean 118 nouveau_context_init(struct gl_context *ctx, struct nouveau_screen *screen, 119 const struct gl_config *visual, struct gl_context *share_ctx) 120 { 121 struct nouveau_context *nctx = to_nouveau_context(ctx); 122 struct dd_function_table functions; 123 int ret; 124 125 nctx->screen = screen; 126 nctx->fallback = HWTNL; 127 128 /* Initialize the function pointers. */ 129 _mesa_init_driver_functions(&functions); 130 nouveau_driver_functions_init(&functions); 131 nouveau_bufferobj_functions_init(&functions); 132 nouveau_texture_functions_init(&functions); 133 nouveau_fbo_functions_init(&functions); 134 135 /* Initialize the mesa context. */ 136 _mesa_initialize_context(ctx, API_OPENGL, visual, 137 share_ctx, &functions, NULL); 138 139 nouveau_state_init(ctx); 140 nouveau_scratch_init(ctx); 141 _mesa_meta_init(ctx); 142 _swrast_CreateContext(ctx); 143 _vbo_CreateContext(ctx); 144 _tnl_CreateContext(ctx); 145 nouveau_span_functions_init(ctx); 146 _mesa_allow_light_in_model(ctx, GL_FALSE); 147 148 /* Allocate a hardware channel. */ 149 ret = nouveau_object_new(&context_dev(ctx)->object, 0xbeef0000, 150 NOUVEAU_FIFO_CHANNEL_CLASS, 151 &(struct nv04_fifo){ 152 .vram = 0xbeef0201, 153 .gart = 0xbeef0202 154 }, sizeof(struct nv04_fifo), &nctx->hw.chan); 155 if (ret) { 156 nouveau_error("Error initializing the FIFO.\n"); 157 return GL_FALSE; 158 } 159 160 /* Allocate a client (thread data) */ 161 ret = nouveau_client_new(context_dev(ctx), &nctx->hw.client); 162 if (ret) { 163 nouveau_error("Error creating thread data\n"); 164 return GL_FALSE; 165 } 166 167 /* Allocate a push buffer */ 168 ret = nouveau_pushbuf_new(nctx->hw.client, nctx->hw.chan, 4, 169 512 * 1024, true, &nctx->hw.pushbuf); 170 if (ret) { 171 nouveau_error("Error allocating DMA push buffer\n"); 172 return GL_FALSE; 173 } 174 175 /* Allocate buffer context */ 176 ret = nouveau_bufctx_new(nctx->hw.client, 16, &nctx->hw.bufctx); 177 if (ret) { 178 nouveau_error("Error allocating buffer context\n"); 179 return GL_FALSE; 180 } 181 182 nctx->hw.pushbuf->user_priv = nctx->hw.bufctx; 183 184 /* Allocate NULL object */ 185 ret = nouveau_object_new(nctx->hw.chan, 0x00000000, NV01_NULL_CLASS, 186 NULL, 0, &nctx->hw.null); 187 if (ret) { 188 nouveau_error("Error allocating NULL object\n"); 189 return GL_FALSE; 190 } 191 192 /* Enable any supported extensions. */ 193 ctx->Extensions.EXT_blend_color = true; 194 ctx->Extensions.EXT_blend_minmax = true; 195 ctx->Extensions.EXT_fog_coord = true; 196 ctx->Extensions.EXT_framebuffer_blit = true; 197 ctx->Extensions.EXT_framebuffer_object = true; 198 ctx->Extensions.EXT_packed_depth_stencil = true; 199 ctx->Extensions.EXT_secondary_color = true; 200 ctx->Extensions.EXT_texture_filter_anisotropic = true; 201 ctx->Extensions.NV_blend_square = true; 202 ctx->Extensions.NV_texture_env_combine4 = true; 203 204 return GL_TRUE; 205 } 206 207 void 208 nouveau_context_deinit(struct gl_context *ctx) 209 { 210 struct nouveau_context *nctx = to_nouveau_context(ctx); 211 212 if (TNL_CONTEXT(ctx)) 213 _tnl_DestroyContext(ctx); 214 215 if (vbo_context(ctx)) 216 _vbo_DestroyContext(ctx); 217 218 if (SWRAST_CONTEXT(ctx)) 219 _swrast_DestroyContext(ctx); 220 221 if (ctx->Meta) 222 _mesa_meta_free(ctx); 223 224 nouveau_bufctx_del(&nctx->hw.bufctx); 225 nouveau_pushbuf_del(&nctx->hw.pushbuf); 226 nouveau_client_del(&nctx->hw.client); 227 nouveau_object_del(&nctx->hw.chan); 228 229 nouveau_scratch_destroy(ctx); 230 _mesa_free_context_data(ctx); 231 } 232 233 void 234 nouveau_context_destroy(__DRIcontext *dri_ctx) 235 { 236 struct nouveau_context *nctx = dri_ctx->driverPrivate; 237 struct gl_context *ctx = &nctx->base; 238 239 nouveau_bo_ref(NULL, &nctx->fence); 240 context_drv(ctx)->context_destroy(ctx); 241 } 242 243 void 244 nouveau_update_renderbuffers(__DRIcontext *dri_ctx, __DRIdrawable *draw) 245 { 246 struct gl_context *ctx = dri_ctx->driverPrivate; 247 struct nouveau_context *nctx = to_nouveau_context(ctx); 248 __DRIscreen *screen = dri_ctx->driScreenPriv; 249 struct gl_framebuffer *fb = draw->driverPrivate; 250 struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb); 251 unsigned int attachments[10]; 252 __DRIbuffer *buffers = NULL; 253 int i = 0, count, ret; 254 255 if (draw->lastStamp == draw->dri2.stamp) 256 return; 257 draw->lastStamp = draw->dri2.stamp; 258 259 if (nfb->need_front) 260 attachments[i++] = __DRI_BUFFER_FRONT_LEFT; 261 if (fb->Visual.doubleBufferMode) 262 attachments[i++] = __DRI_BUFFER_BACK_LEFT; 263 if (fb->Visual.haveDepthBuffer && fb->Visual.haveStencilBuffer) 264 attachments[i++] = __DRI_BUFFER_DEPTH_STENCIL; 265 else if (fb->Visual.haveDepthBuffer) 266 attachments[i++] = __DRI_BUFFER_DEPTH; 267 else if (fb->Visual.haveStencilBuffer) 268 attachments[i++] = __DRI_BUFFER_STENCIL; 269 270 buffers = (*screen->dri2.loader->getBuffers)(draw, &draw->w, &draw->h, 271 attachments, i, &count, 272 draw->loaderPrivate); 273 if (buffers == NULL) 274 return; 275 276 for (i = 0; i < count; i++) { 277 struct gl_renderbuffer *rb; 278 struct nouveau_surface *s; 279 uint32_t old_name; 280 int index; 281 282 switch (buffers[i].attachment) { 283 case __DRI_BUFFER_FRONT_LEFT: 284 case __DRI_BUFFER_FAKE_FRONT_LEFT: 285 index = BUFFER_FRONT_LEFT; 286 break; 287 case __DRI_BUFFER_BACK_LEFT: 288 index = BUFFER_BACK_LEFT; 289 break; 290 case __DRI_BUFFER_DEPTH: 291 case __DRI_BUFFER_DEPTH_STENCIL: 292 index = BUFFER_DEPTH; 293 break; 294 case __DRI_BUFFER_STENCIL: 295 index = BUFFER_STENCIL; 296 break; 297 default: 298 assert(0); 299 } 300 301 rb = fb->Attachment[index].Renderbuffer; 302 s = &to_nouveau_renderbuffer(rb)->surface; 303 304 s->width = draw->w; 305 s->height = draw->h; 306 s->pitch = buffers[i].pitch; 307 s->cpp = buffers[i].cpp; 308 309 if (index == BUFFER_DEPTH && s->bo) { 310 ret = nouveau_bo_name_get(s->bo, &old_name); 311 /* 312 * Disable fast Z clears in the next frame, the 313 * depth buffer contents are undefined. 314 */ 315 if (!ret && old_name != buffers[i].name) 316 nctx->hierz.clear_seq = 0; 317 } 318 319 nouveau_bo_ref(NULL, &s->bo); 320 ret = nouveau_bo_name_ref(context_dev(ctx), 321 buffers[i].name, &s->bo); 322 assert(!ret); 323 } 324 325 _mesa_resize_framebuffer(ctx, fb, draw->w, draw->h); 326 } 327 328 static void 329 update_framebuffer(__DRIcontext *dri_ctx, __DRIdrawable *draw, 330 int *stamp) 331 { 332 struct gl_context *ctx = dri_ctx->driverPrivate; 333 struct gl_framebuffer *fb = draw->driverPrivate; 334 335 *stamp = draw->dri2.stamp; 336 337 nouveau_update_renderbuffers(dri_ctx, draw); 338 _mesa_resize_framebuffer(ctx, fb, draw->w, draw->h); 339 340 /* Clean up references to the old framebuffer objects. */ 341 context_dirty(ctx, FRAMEBUFFER); 342 nouveau_bufctx_reset(to_nouveau_context(ctx)->hw.bufctx, BUFCTX_FB); 343 PUSH_KICK(context_push(ctx)); 344 } 345 346 GLboolean 347 nouveau_context_make_current(__DRIcontext *dri_ctx, __DRIdrawable *dri_draw, 348 __DRIdrawable *dri_read) 349 { 350 if (dri_ctx) { 351 struct nouveau_context *nctx = dri_ctx->driverPrivate; 352 struct gl_context *ctx = &nctx->base; 353 354 /* Ask the X server for new renderbuffers. */ 355 if (dri_draw->driverPrivate != ctx->WinSysDrawBuffer) 356 update_framebuffer(dri_ctx, dri_draw, 357 &dri_ctx->dri2.draw_stamp); 358 359 if (dri_draw != dri_read && 360 dri_read->driverPrivate != ctx->WinSysReadBuffer) 361 update_framebuffer(dri_ctx, dri_read, 362 &dri_ctx->dri2.read_stamp); 363 364 /* Pass it down to mesa. */ 365 _mesa_make_current(ctx, dri_draw->driverPrivate, 366 dri_read->driverPrivate); 367 _mesa_update_state(ctx); 368 369 } else { 370 _mesa_make_current(NULL, NULL, NULL); 371 } 372 373 return GL_TRUE; 374 } 375 376 GLboolean 377 nouveau_context_unbind(__DRIcontext *dri_ctx) 378 { 379 /* Unset current context and dispatch table */ 380 _mesa_make_current(NULL, NULL, NULL); 381 382 return GL_TRUE; 383 } 384 385 void 386 nouveau_fallback(struct gl_context *ctx, enum nouveau_fallback mode) 387 { 388 struct nouveau_context *nctx = to_nouveau_context(ctx); 389 390 nctx->fallback = MAX2(HWTNL, mode); 391 392 if (mode < SWRAST) { 393 nouveau_state_emit(ctx); 394 #if 0 395 nouveau_bo_state_emit(ctx); 396 #endif 397 } else { 398 PUSH_KICK(context_push(ctx)); 399 } 400 } 401 402 static void 403 validate_framebuffer(__DRIcontext *dri_ctx, __DRIdrawable *draw, 404 int *stamp) 405 { 406 struct gl_framebuffer *fb = draw->driverPrivate; 407 struct nouveau_framebuffer *nfb = to_nouveau_framebuffer(fb); 408 GLboolean need_front = 409 (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT || 410 fb->_ColorReadBufferIndex == BUFFER_FRONT_LEFT); 411 412 if (nfb->need_front != need_front) { 413 nfb->need_front = need_front; 414 dri2InvalidateDrawable(draw); 415 } 416 417 if (draw->dri2.stamp != *stamp) 418 update_framebuffer(dri_ctx, draw, stamp); 419 } 420 421 void 422 nouveau_validate_framebuffer(struct gl_context *ctx) 423 { 424 __DRIcontext *dri_ctx = to_nouveau_context(ctx)->dri_context; 425 __DRIdrawable *dri_draw = dri_ctx->driDrawablePriv; 426 __DRIdrawable *dri_read = dri_ctx->driReadablePriv; 427 428 if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) 429 validate_framebuffer(dri_ctx, dri_draw, 430 &dri_ctx->dri2.draw_stamp); 431 432 if (_mesa_is_winsys_fbo(ctx->ReadBuffer)) 433 validate_framebuffer(dri_ctx, dri_read, 434 &dri_ctx->dri2.read_stamp); 435 436 if (ctx->NewState & _NEW_BUFFERS) 437 _mesa_update_state(ctx); 438 } 439
