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
nouveau_context_create(gl_api api,const struct gl_config * visual,__DRIcontext * dri_ctx,unsigned major_version,unsigned minor_version,uint32_t flags,unsigned * error,void * share_ctx)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
nouveau_context_init(struct gl_context * ctx,struct nouveau_screen * screen,const struct gl_config * visual,struct gl_context * share_ctx)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
nouveau_context_deinit(struct gl_context * ctx)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
nouveau_context_destroy(__DRIcontext * dri_ctx)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
nouveau_update_renderbuffers(__DRIcontext * dri_ctx,__DRIdrawable * draw)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
update_framebuffer(__DRIcontext * dri_ctx,__DRIdrawable * draw,int * stamp)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
nouveau_context_make_current(__DRIcontext * dri_ctx,__DRIdrawable * dri_draw,__DRIdrawable * dri_read)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
nouveau_context_unbind(__DRIcontext * dri_ctx)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
nouveau_fallback(struct gl_context * ctx,enum nouveau_fallback mode)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
validate_framebuffer(__DRIcontext * dri_ctx,__DRIdrawable * draw,int * stamp)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
nouveau_validate_framebuffer(struct gl_context * ctx)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