xorg_exa.c revision 1e9eb69f835e35116b8ada0fc2f05561fd8956d1 
1/*
2 * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
3 * All Rights Reserved.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * 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, sub license, 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 portions
15 * of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
20 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 *
25 *
26 * Author: Alan Hourihane <alanh@tungstengraphics.com>
27 * Author: Jakob Bornecrantz <wallbraker@gmail.com>
28 *
29 */
30
31#include "xorg_exa.h"
32#include "xorg_tracker.h"
33#include "xorg_composite.h"
34#include "xorg_exa_tgsi.h"
35
36#include <xorg-server.h>
37#include <xf86.h>
38#include <picturestr.h>
39#include <picture.h>
40
41#include "pipe/p_format.h"
42#include "pipe/p_context.h"
43#include "pipe/p_state.h"
44#include "pipe/p_inlines.h"
45
46#include "cso_cache/cso_context.h"
47
48#include "util/u_rect.h"
49
50/*
51 * Helper functions
52 */
53
54static void
55exa_get_pipe_format(int depth, enum pipe_format *format, int *bbp)
56{
57    switch (depth) {
58    case 32:
59	*format = PIPE_FORMAT_A8R8G8B8_UNORM;
60	assert(*bbp == 32);
61	break;
62    case 24:
63	*format = PIPE_FORMAT_X8R8G8B8_UNORM;
64	assert(*bbp == 32);
65	break;
66    case 16:
67	*format = PIPE_FORMAT_R5G6B5_UNORM;
68	assert(*bbp == 16);
69	break;
70    case 15:
71	*format = PIPE_FORMAT_A1R5G5B5_UNORM;
72	assert(*bbp == 16);
73	break;
74    case 8:
75    case 4:
76    case 1:
77	*format = PIPE_FORMAT_A8R8G8B8_UNORM; /* bad bad bad */
78	break;
79    default:
80	assert(0);
81	break;
82    }
83}
84
85/*
86 * Static exported EXA functions
87 */
88
89static void
90ExaWaitMarker(ScreenPtr pScreen, int marker)
91{
92}
93
94static int
95ExaMarkSync(ScreenPtr pScreen)
96{
97    return 1;
98}
99
100static Bool
101ExaPrepareAccess(PixmapPtr pPix, int index)
102{
103    ScreenPtr pScreen = pPix->drawable.pScreen;
104    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
105    modesettingPtr ms = modesettingPTR(pScrn);
106    struct exa_context *exa = ms->exa;
107    struct exa_pixmap_priv *priv;
108
109    priv = exaGetPixmapDriverPrivate(pPix);
110
111    if (!priv)
112	return FALSE;
113
114    if (!priv->tex)
115	return FALSE;
116
117    if (priv->map_count++ == 0)
118    {
119	if (exa->ctx->is_texture_referenced(exa->ctx, priv->tex, 0, 0) &
120	    PIPE_REFERENCED_FOR_WRITE)
121	    exa->ctx->flush(exa->ctx, 0, NULL);
122
123	priv->map_transfer =
124	    exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
125					PIPE_TRANSFER_READ_WRITE,
126					0, 0, priv->tex->width[0], priv->tex->height[0]);
127
128	pPix->devPrivate.ptr =
129	    exa->scrn->transfer_map(exa->scrn, priv->map_transfer);
130	pPix->devKind = priv->map_transfer->stride;
131    }
132
133    return TRUE;
134}
135
136static void
137ExaFinishAccess(PixmapPtr pPix, int index)
138{
139    ScreenPtr pScreen = pPix->drawable.pScreen;
140    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
141    modesettingPtr ms = modesettingPTR(pScrn);
142    struct exa_context *exa = ms->exa;
143    struct exa_pixmap_priv *priv;
144    priv = exaGetPixmapDriverPrivate(pPix);
145
146    if (!priv)
147	return;
148
149    if (!priv->map_transfer)
150	return;
151
152    if (--priv->map_count == 0) {
153	assert(priv->map_transfer);
154	exa->scrn->transfer_unmap(exa->scrn, priv->map_transfer);
155	exa->scrn->tex_transfer_destroy(priv->map_transfer);
156	priv->map_transfer = NULL;
157	pPix->devPrivate.ptr = NULL;
158    }
159}
160
161static void
162ExaDone(PixmapPtr pPixmap)
163{
164    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
165    modesettingPtr ms = modesettingPTR(pScrn);
166    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
167    struct exa_context *exa = ms->exa;
168
169    if (!priv)
170	return;
171
172    if (priv->src_surf)
173	exa->scrn->tex_surface_destroy(priv->src_surf);
174    priv->src_surf = NULL;
175}
176
177static void
178ExaDoneComposite(PixmapPtr pPixmap)
179{
180
181}
182
183static Bool
184ExaPrepareSolid(PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg)
185{
186    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
187    modesettingPtr ms = modesettingPTR(pScrn);
188    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
189    struct exa_context *exa = ms->exa;
190
191    if (1)
192        return FALSE;
193
194    if (pPixmap->drawable.depth < 15)
195	return FALSE;
196
197    if (!EXA_PM_IS_SOLID(&pPixmap->drawable, planeMask))
198	return FALSE;
199
200    if (!priv || !priv->tex)
201	return FALSE;
202
203    if (alu != GXcopy)
204	return FALSE;
205
206    if (!exa->ctx || !exa->ctx->surface_fill)
207	return FALSE;
208
209    priv->color = fg;
210
211    return TRUE;
212}
213
214static void
215ExaSolid(PixmapPtr pPixmap, int x0, int y0, int x1, int y1)
216{
217    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
218    modesettingPtr ms = modesettingPTR(pScrn);
219    struct exa_context *exa = ms->exa;
220    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
221    struct pipe_surface *surf = exa_gpu_surface(exa, priv);
222
223    exa->ctx->surface_fill(exa->ctx, surf, x0, y0, x1 - x0, y1 - y0,
224			   priv->color);
225
226    exa->scrn->tex_surface_destroy(surf);
227}
228
229static Bool
230ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
231	       int ydir, int alu, Pixel planeMask)
232{
233    ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
234    modesettingPtr ms = modesettingPTR(pScrn);
235    struct exa_context *exa = ms->exa;
236    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
237    struct exa_pixmap_priv *src_priv = exaGetPixmapDriverPrivate(pSrcPixmap);
238
239    if (alu != GXcopy)
240	return FALSE;
241
242    if (pSrcPixmap->drawable.depth < 15 || pDstPixmap->drawable.depth < 15)
243	return FALSE;
244
245    if (!EXA_PM_IS_SOLID(&pSrcPixmap->drawable, planeMask))
246	return FALSE;
247
248    if (!priv || !src_priv)
249	return FALSE;
250
251    if (!priv->tex || !src_priv->tex)
252	return FALSE;
253
254    if (!exa->ctx || !exa->ctx->surface_copy)
255	return FALSE;
256
257    priv->src_surf = exa_gpu_surface(exa, src_priv);
258
259    return TRUE;
260}
261
262static void
263ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
264	int width, int height)
265{
266    ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
267    modesettingPtr ms = modesettingPTR(pScrn);
268    struct exa_context *exa = ms->exa;
269    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
270    struct pipe_surface *surf = exa_gpu_surface(exa, priv);
271
272    exa->ctx->surface_copy(exa->ctx, surf, dstX, dstY, priv->src_surf,
273			   srcX, srcY, width, height);
274    exa->scrn->tex_surface_destroy(surf);
275}
276
277static Bool
278ExaPrepareComposite(int op, PicturePtr pSrcPicture,
279		    PicturePtr pMaskPicture, PicturePtr pDstPicture,
280		    PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
281{
282   ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
283   modesettingPtr ms = modesettingPTR(pScrn);
284   struct exa_context *exa = ms->exa;
285
286   return xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
287                                    pDstPicture,
288                                    exaGetPixmapDriverPrivate(pSrc),
289                                    exaGetPixmapDriverPrivate(pMask),
290                                    exaGetPixmapDriverPrivate(pDst));
291}
292
293static void
294ExaComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,
295	     int dstX, int dstY, int width, int height)
296{
297   ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
298   modesettingPtr ms = modesettingPTR(pScrn);
299   struct exa_context *exa = ms->exa;
300   struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDst);
301
302   xorg_composite(exa, priv, srcX, srcY, maskX, maskY,
303                  dstX, dstY, width, height);
304}
305
306static Bool
307ExaCheckComposite(int op,
308		  PicturePtr pSrcPicture, PicturePtr pMaskPicture,
309		  PicturePtr pDstPicture)
310{
311   return xorg_composite_accelerated(op,
312                                     pSrcPicture,
313                                     pMaskPicture,
314                                     pDstPicture);
315}
316
317static void *
318ExaCreatePixmap(ScreenPtr pScreen, int size, int align)
319{
320    struct exa_pixmap_priv *priv;
321
322    priv = xcalloc(1, sizeof(struct exa_pixmap_priv));
323    if (!priv)
324	return NULL;
325
326    return priv;
327}
328
329static void
330ExaDestroyPixmap(ScreenPtr pScreen, void *dPriv)
331{
332    struct exa_pixmap_priv *priv = (struct exa_pixmap_priv *)dPriv;
333    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
334    modesettingPtr ms = modesettingPTR(pScrn);
335
336    if (!priv)
337	return;
338
339    if (priv->tex)
340	ms->screen->texture_destroy(priv->tex);
341
342    xfree(priv);
343}
344
345static Bool
346ExaPixmapIsOffscreen(PixmapPtr pPixmap)
347{
348    struct exa_pixmap_priv *priv;
349
350    priv = exaGetPixmapDriverPrivate(pPixmap);
351
352    if (!priv)
353	return FALSE;
354
355    if (priv->tex)
356	return TRUE;
357
358    return FALSE;
359}
360
361int
362xorg_exa_set_displayed_usage(PixmapPtr pPixmap)
363{
364    struct exa_pixmap_priv *priv;
365    priv = exaGetPixmapDriverPrivate(pPixmap);
366
367    if (!priv) {
368	FatalError("NO PIXMAP PRIVATE\n");
369	return 0;
370    }
371
372    priv->flags |= PIPE_TEXTURE_USAGE_PRIMARY;
373
374    return 0;
375}
376
377int
378xorg_exa_set_shared_usage(PixmapPtr pPixmap)
379{
380    struct exa_pixmap_priv *priv;
381    priv = exaGetPixmapDriverPrivate(pPixmap);
382
383    if (!priv) {
384	FatalError("NO PIXMAP PRIVATE\n");
385	return 0;
386    }
387
388    priv->flags |= PIPE_TEXTURE_USAGE_DISPLAY_TARGET;
389
390    return 0;
391}
392
393unsigned
394xorg_exa_get_pixmap_handle(PixmapPtr pPixmap, unsigned *stride_out)
395{
396    ScreenPtr pScreen = pPixmap->drawable.pScreen;
397    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
398    modesettingPtr ms = modesettingPTR(pScrn);
399    struct exa_pixmap_priv *priv;
400    unsigned handle;
401    unsigned stride;
402
403    if (!ms->exa) {
404	FatalError("NO MS->EXA\n");
405	return 0;
406    }
407
408    priv = exaGetPixmapDriverPrivate(pPixmap);
409
410    if (!priv) {
411	FatalError("NO PIXMAP PRIVATE\n");
412	return 0;
413    }
414
415    ms->api->local_handle_from_texture(ms->api, ms->screen, priv->tex, &stride, &handle);
416    if (stride_out)
417	*stride_out = stride;
418
419    return handle;
420}
421
422static Bool
423ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
424		      int depth, int bitsPerPixel, int devKind,
425		      pointer pPixData)
426{
427    ScreenPtr pScreen = pPixmap->drawable.pScreen;
428    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
429    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
430    modesettingPtr ms = modesettingPTR(pScrn);
431    struct exa_context *exa = ms->exa;
432
433    if (!priv)
434	return FALSE;
435
436    if (depth <= 0)
437	depth = pPixmap->drawable.depth;
438
439    if (bitsPerPixel <= 0)
440	bitsPerPixel = pPixmap->drawable.bitsPerPixel;
441
442    if (width <= 0)
443	width = pPixmap->drawable.width;
444
445    if (height <= 0)
446	height = pPixmap->drawable.height;
447
448    if (width <= 0 || height <= 0 || depth <= 0)
449	return FALSE;
450
451    miModifyPixmapHeader(pPixmap, width, height, depth,
452			     bitsPerPixel, devKind, NULL);
453
454    /* Deal with screen resize */
455    if (priv->tex && (priv->tex->width[0] != width ||
456		      priv->tex->height[0] != height ||
457		      priv->tex_flags != priv->flags)) {
458	pipe_texture_reference(&priv->tex, NULL);
459    }
460
461    if (!priv->tex
462#ifdef DRM_MODE_FEATURE_DIRTYFB
463	&& priv->flags
464#endif
465	) {
466	struct pipe_texture template;
467
468	memset(&template, 0, sizeof(template));
469	template.target = PIPE_TEXTURE_2D;
470	exa_get_pipe_format(depth, &template.format, &bitsPerPixel);
471	pf_get_block(template.format, &template.block);
472	template.width[0] = width;
473	template.height[0] = height;
474	template.depth[0] = 1;
475	template.last_level = 0;
476	template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET | priv->flags;
477	priv->tex_flags = priv->flags;
478	priv->tex = exa->scrn->texture_create(exa->scrn, &template);
479    }
480
481#ifdef DRM_MODE_FEATURE_DIRTYFB
482    if (!priv->tex) {
483	if (pPixData)
484	    pPixmap->devPrivate.ptr = pPixData;
485	else
486	    pPixmap->devPrivate.ptr = xalloc(pPixmap->drawable.height * pPixmap->devKind);
487    } else
488#endif
489    if (pPixData) {
490	struct pipe_transfer *transfer =
491	    exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
492					PIPE_TRANSFER_WRITE,
493					0, 0, width, height);
494        util_copy_rect(exa->scrn->transfer_map(exa->scrn, transfer),
495                       &priv->tex->block, transfer->stride, 0, 0,
496                       width, height, pPixData, pPixmap->devKind, 0, 0);
497        exa->scrn->transfer_unmap(exa->scrn, transfer);
498        exa->scrn->tex_transfer_destroy(transfer);
499    } else if (priv->tex && pPixmap->devPrivate.ptr) {
500	struct pipe_transfer *transfer;
501
502	if (priv->map_count != 0)
503	    FatalError("doing ExaModifyPixmapHeader on mapped buffer\n");
504
505	transfer =
506	    exa->scrn->get_tex_transfer(exa->scrn, priv->tex, 0, 0, 0,
507					PIPE_TRANSFER_WRITE,
508					0, 0, width, height);
509        util_copy_rect(exa->scrn->transfer_map(exa->scrn, transfer),
510                       &priv->tex->block, transfer->stride, 0, 0,
511                       width, height, pPixmap->devPrivate.ptr, pPixmap->devKind, 0, 0);
512        exa->scrn->transfer_unmap(exa->scrn, transfer);
513        exa->scrn->tex_transfer_destroy(transfer);
514    }
515
516    return TRUE;
517}
518
519struct pipe_texture *
520xorg_exa_get_texture(PixmapPtr pPixmap)
521{
522   struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
523   struct pipe_texture *tex = NULL;
524   pipe_texture_reference(&tex, priv->tex);
525   return tex;
526}
527
528void
529xorg_exa_close(ScrnInfoPtr pScrn)
530{
531   modesettingPtr ms = modesettingPTR(pScrn);
532   struct exa_context *exa = ms->exa;
533   struct pipe_constant_buffer *vsbuf = &exa->vs_const_buffer;
534   struct pipe_constant_buffer *fsbuf = &exa->fs_const_buffer;
535
536   if (exa->shaders) {
537      xorg_shaders_destroy(exa->shaders);
538   }
539
540   if (vsbuf && vsbuf->buffer)
541      pipe_buffer_reference(&vsbuf->buffer, NULL);
542
543   if (fsbuf && fsbuf->buffer)
544      pipe_buffer_reference(&fsbuf->buffer, NULL);
545
546   if (exa->cso) {
547      cso_release_all(exa->cso);
548      cso_destroy_context(exa->cso);
549   }
550
551   if (exa->ctx)
552      exa->ctx->destroy(exa->ctx);
553
554   exaDriverFini(pScrn->pScreen);
555   xfree(exa);
556   ms->exa = NULL;
557}
558
559void *
560xorg_exa_init(ScrnInfoPtr pScrn)
561{
562   modesettingPtr ms = modesettingPTR(pScrn);
563   struct exa_context *exa;
564   ExaDriverPtr pExa;
565
566   exa = xcalloc(1, sizeof(struct exa_context));
567   if (!exa)
568      return NULL;
569
570   pExa = exaDriverAlloc();
571   if (!pExa) {
572      goto out_err;
573   }
574
575   memset(pExa, 0, sizeof(*pExa));
576
577   pExa->exa_major         = 2;
578   pExa->exa_minor         = 2;
579   pExa->memoryBase        = 0;
580   pExa->memorySize        = 0;
581   pExa->offScreenBase     = 0;
582   pExa->pixmapOffsetAlign = 0;
583   pExa->pixmapPitchAlign  = 1;
584   pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
585   pExa->maxX              = 8191; /* FIXME */
586   pExa->maxY              = 8191; /* FIXME */
587
588   pExa->WaitMarker         = ExaWaitMarker;
589   pExa->MarkSync           = ExaMarkSync;
590   pExa->PrepareSolid       = ExaPrepareSolid;
591   pExa->Solid              = ExaSolid;
592   pExa->DoneSolid          = ExaDone;
593   pExa->PrepareCopy        = ExaPrepareCopy;
594   pExa->Copy               = ExaCopy;
595   pExa->DoneCopy           = ExaDone;
596   pExa->CheckComposite     = ExaCheckComposite;
597   pExa->PrepareComposite   = ExaPrepareComposite;
598   pExa->Composite          = ExaComposite;
599   pExa->DoneComposite      = ExaDoneComposite;
600   pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
601   pExa->PrepareAccess      = ExaPrepareAccess;
602   pExa->FinishAccess       = ExaFinishAccess;
603   pExa->CreatePixmap       = ExaCreatePixmap;
604   pExa->DestroyPixmap      = ExaDestroyPixmap;
605   pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
606
607   if (!exaDriverInit(pScrn->pScreen, pExa)) {
608      goto out_err;
609   }
610
611   exa->scrn = ms->screen;
612   exa->ctx = ms->api->create_context(ms->api, exa->scrn);
613   /* Share context with DRI */
614   ms->ctx = exa->ctx;
615
616   exa->cso = cso_create_context(exa->ctx);
617   exa->shaders = xorg_shaders_create(exa);
618
619   return (void *)exa;
620
621out_err:
622   xorg_exa_close(pScrn);
623
624   return NULL;
625}
626
627struct pipe_surface *
628exa_gpu_surface(struct exa_context *exa, struct exa_pixmap_priv *priv)
629{
630   return exa->scrn->get_tex_surface(exa->scrn, priv->tex, 0, 0, 0,
631                                     PIPE_BUFFER_USAGE_GPU_READ |
632                                     PIPE_BUFFER_USAGE_GPU_WRITE);
633
634}
635
636