xorg_exa.c revision 475ab3b5aff71edd95776783dd65417006db951f 
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
45#include "util/u_rect.h"
46#include "util/u_math.h"
47#include "util/u_debug.h"
48#include "util/u_format.h"
49
50#define DEBUG_PRINT 0
51#define ROUND_UP_TEXTURES 1
52
53/*
54 * Helper functions
55 */
56struct render_format_str {
57   int format;
58   const char *name;
59};
60static const struct render_format_str formats_info[] =
61{
62   {PICT_a8r8g8b8, "PICT_a8r8g8b8"},
63   {PICT_x8r8g8b8, "PICT_x8r8g8b8"},
64   {PICT_a8b8g8r8, "PICT_a8b8g8r8"},
65   {PICT_x8b8g8r8, "PICT_x8b8g8r8"},
66#ifdef PICT_TYPE_BGRA
67   {PICT_b8g8r8a8, "PICT_b8g8r8a8"},
68   {PICT_b8g8r8x8, "PICT_b8g8r8x8"},
69   {PICT_a2r10g10b10, "PICT_a2r10g10b10"},
70   {PICT_x2r10g10b10, "PICT_x2r10g10b10"},
71   {PICT_a2b10g10r10, "PICT_a2b10g10r10"},
72   {PICT_x2b10g10r10, "PICT_x2b10g10r10"},
73#endif
74   {PICT_r8g8b8, "PICT_r8g8b8"},
75   {PICT_b8g8r8, "PICT_b8g8r8"},
76   {PICT_r5g6b5, "PICT_r5g6b5"},
77   {PICT_b5g6r5, "PICT_b5g6r5"},
78   {PICT_a1r5g5b5, "PICT_a1r5g5b5"},
79   {PICT_x1r5g5b5, "PICT_x1r5g5b5"},
80   {PICT_a1b5g5r5, "PICT_a1b5g5r5"},
81   {PICT_x1b5g5r5, "PICT_x1b5g5r5"},
82   {PICT_a4r4g4b4, "PICT_a4r4g4b4"},
83   {PICT_x4r4g4b4, "PICT_x4r4g4b4"},
84   {PICT_a4b4g4r4, "PICT_a4b4g4r4"},
85   {PICT_x4b4g4r4, "PICT_x4b4g4r4"},
86   {PICT_a8, "PICT_a8"},
87   {PICT_r3g3b2, "PICT_r3g3b2"},
88   {PICT_b2g3r3, "PICT_b2g3r3"},
89   {PICT_a2r2g2b2, "PICT_a2r2g2b2"},
90   {PICT_a2b2g2r2, "PICT_a2b2g2r2"},
91   {PICT_c8, "PICT_c8"},
92   {PICT_g8, "PICT_g8"},
93   {PICT_x4a4, "PICT_x4a4"},
94   {PICT_x4c4, "PICT_x4c4"},
95   {PICT_x4g4, "PICT_x4g4"},
96   {PICT_a4, "PICT_a4"},
97   {PICT_r1g2b1, "PICT_r1g2b1"},
98   {PICT_b1g2r1, "PICT_b1g2r1"},
99   {PICT_a1r1g1b1, "PICT_a1r1g1b1"},
100   {PICT_a1b1g1r1, "PICT_a1b1g1r1"},
101   {PICT_c4, "PICT_c4"},
102   {PICT_g4, "PICT_g4"},
103   {PICT_a1, "PICT_a1"},
104   {PICT_g1, "PICT_g1"}
105};
106static const char *render_format_name(int format)
107{
108   int i = 0;
109   for (i = 0; i < sizeof(formats_info)/sizeof(formats_info[0]); ++i) {
110      if (formats_info[i].format == format)
111         return formats_info[i].name;
112   }
113   return NULL;
114}
115
116static void
117exa_get_pipe_format(int depth, enum pipe_format *format, int *bbp, int *picture_format)
118{
119    switch (depth) {
120    case 32:
121	*format = PIPE_FORMAT_B8G8R8A8_UNORM;
122	*picture_format = PICT_a8r8g8b8;
123	assert(*bbp == 32);
124	break;
125    case 24:
126	*format = PIPE_FORMAT_B8G8R8X8_UNORM;
127	*picture_format = PICT_x8r8g8b8;
128	assert(*bbp == 32);
129	break;
130    case 16:
131	*format = PIPE_FORMAT_B5G6R5_UNORM;
132	*picture_format = PICT_r5g6b5;
133	assert(*bbp == 16);
134	break;
135    case 15:
136	*format = PIPE_FORMAT_B5G5R5A1_UNORM;
137	*picture_format = PICT_x1r5g5b5;
138	assert(*bbp == 16);
139	break;
140    case 8:
141	*format = PIPE_FORMAT_L8_UNORM;
142	*picture_format = PICT_a8;
143	assert(*bbp == 8);
144	break;
145    case 4:
146    case 1:
147	*format = PIPE_FORMAT_B8G8R8A8_UNORM; /* bad bad bad */
148	break;
149    default:
150	assert(0);
151	break;
152    }
153}
154
155
156/*
157 * Static exported EXA functions
158 */
159
160static void
161ExaWaitMarker(ScreenPtr pScreen, int marker)
162{
163   /* Nothing to do, handled in the PrepareAccess hook */
164}
165
166static int
167ExaMarkSync(ScreenPtr pScreen)
168{
169   return 1;
170}
171
172
173/***********************************************************************
174 * Screen upload/download
175 */
176
177static Bool
178ExaDownloadFromScreen(PixmapPtr pPix, int x,  int y, int w,  int h, char *dst,
179		      int dst_pitch)
180{
181    ScreenPtr pScreen = pPix->drawable.pScreen;
182    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
183    modesettingPtr ms = modesettingPTR(pScrn);
184    struct exa_context *exa = ms->exa;
185    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
186    struct pipe_transfer *transfer;
187
188    if (!priv || !priv->tex)
189	return FALSE;
190
191    if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
192	PIPE_REFERENCED_FOR_WRITE)
193	exa->pipe->flush(exa->pipe, 0, NULL);
194
195    transfer = exa->pipe->get_tex_transfer(exa->pipe, priv->tex, 0, 0, 0,
196					   PIPE_TRANSFER_READ, x, y, w, h);
197    if (!transfer)
198	return FALSE;
199
200#if DEBUG_PRINT
201    debug_printf("------ ExaDownloadFromScreen(%d, %d, %d, %d, %d)\n",
202                 x, y, w, h, dst_pitch);
203#endif
204
205    util_copy_rect((unsigned char*)dst, priv->tex->format, dst_pitch, 0, 0,
206		   w, h, exa->pipe->transfer_map(exa->pipe, transfer),
207		   transfer->stride, 0, 0);
208
209    exa->pipe->transfer_unmap(exa->pipe, transfer);
210    exa->pipe->tex_transfer_destroy(exa->pipe, transfer);
211
212    return TRUE;
213}
214
215static Bool
216ExaUploadToScreen(PixmapPtr pPix, int x, int y, int w, int h, char *src,
217		  int src_pitch)
218{
219    ScreenPtr pScreen = pPix->drawable.pScreen;
220    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
221    modesettingPtr ms = modesettingPTR(pScrn);
222    struct exa_context *exa = ms->exa;
223    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPix);
224    struct pipe_transfer *transfer;
225
226    if (!priv || !priv->tex)
227	return FALSE;
228
229    /* make sure that any pending operations are flushed to hardware */
230    if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
231	(PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE))
232	xorg_exa_flush(exa, 0, NULL);
233
234    transfer = exa->pipe->get_tex_transfer(exa->pipe, priv->tex, 0, 0, 0,
235					   PIPE_TRANSFER_WRITE, x, y, w, h);
236    if (!transfer)
237	return FALSE;
238
239#if DEBUG_PRINT
240    debug_printf("++++++ ExaUploadToScreen(%d, %d, %d, %d, %d)\n",
241                 x, y, w, h, src_pitch);
242#endif
243
244    util_copy_rect(exa->pipe->transfer_map(exa->pipe, transfer),
245		   priv->tex->format, transfer->stride, 0, 0, w, h,
246		   (unsigned char*)src, src_pitch, 0, 0);
247
248    exa->pipe->transfer_unmap(exa->pipe, transfer);
249    exa->pipe->tex_transfer_destroy(exa->pipe, transfer);
250
251    return TRUE;
252}
253
254static Bool
255ExaPrepareAccess(PixmapPtr pPix, int index)
256{
257    ScreenPtr pScreen = pPix->drawable.pScreen;
258    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
259    modesettingPtr ms = modesettingPTR(pScrn);
260    struct exa_context *exa = ms->exa;
261    struct exa_pixmap_priv *priv;
262
263    priv = exaGetPixmapDriverPrivate(pPix);
264
265    if (!priv)
266	return FALSE;
267
268    if (!priv->tex)
269	return FALSE;
270
271    if (priv->map_count == 0)
272    {
273	if (exa->pipe->is_texture_referenced(exa->pipe, priv->tex, 0, 0) &
274	    PIPE_REFERENCED_FOR_WRITE)
275	    exa->pipe->flush(exa->pipe, 0, NULL);
276
277        assert(pPix->drawable.width <= priv->tex->width0);
278        assert(pPix->drawable.height <= priv->tex->height0);
279
280	priv->map_transfer =
281	    exa->pipe->get_tex_transfer(exa->pipe, priv->tex, 0, 0, 0,
282#ifdef EXA_MIXED_PIXMAPS
283					PIPE_TRANSFER_MAP_DIRECTLY |
284#endif
285					PIPE_TRANSFER_READ_WRITE,
286					0, 0,
287                                        pPix->drawable.width,
288                                        pPix->drawable.height );
289	if (!priv->map_transfer)
290#ifdef EXA_MIXED_PIXMAPS
291	    return FALSE;
292#else
293	    FatalError("failed to create transfer\n");
294#endif
295
296	pPix->devPrivate.ptr =
297	    exa->pipe->transfer_map(exa->pipe, priv->map_transfer);
298	pPix->devKind = priv->map_transfer->stride;
299    }
300
301    priv->map_count++;
302
303    return TRUE;
304}
305
306static void
307ExaFinishAccess(PixmapPtr pPix, int index)
308{
309    ScreenPtr pScreen = pPix->drawable.pScreen;
310    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
311    modesettingPtr ms = modesettingPTR(pScrn);
312    struct exa_context *exa = ms->exa;
313    struct exa_pixmap_priv *priv;
314    priv = exaGetPixmapDriverPrivate(pPix);
315
316    if (!priv)
317	return;
318
319    if (!priv->map_transfer)
320	return;
321
322    if (--priv->map_count == 0) {
323	assert(priv->map_transfer);
324	exa->pipe->transfer_unmap(exa->pipe, priv->map_transfer);
325	exa->pipe->tex_transfer_destroy(exa->pipe, priv->map_transfer);
326	priv->map_transfer = NULL;
327	pPix->devPrivate.ptr = NULL;
328    }
329}
330
331/***********************************************************************
332 * Solid Fills
333 */
334
335static Bool
336ExaPrepareSolid(PixmapPtr pPixmap, int alu, Pixel planeMask, Pixel fg)
337{
338    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
339    modesettingPtr ms = modesettingPTR(pScrn);
340    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
341    struct exa_context *exa = ms->exa;
342
343#if DEBUG_PRINT
344    debug_printf("ExaPrepareSolid(0x%x)\n", fg);
345#endif
346    if (!exa->accel)
347	return FALSE;
348
349    if (!exa->pipe)
350	XORG_FALLBACK("accle not enabled");
351
352    if (!priv || !priv->tex)
353	XORG_FALLBACK("%s", !priv ? "!priv" : "!priv->tex");
354
355    if (!EXA_PM_IS_SOLID(&pPixmap->drawable, planeMask))
356	XORG_FALLBACK("planeMask is not solid");
357
358    if (alu != GXcopy)
359	XORG_FALLBACK("not GXcopy");
360
361    if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
362                                        priv->tex->target,
363                                        PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
364	XORG_FALLBACK("format %s", util_format_name(priv->tex->format));
365    }
366
367    return xorg_solid_bind_state(exa, priv, fg);
368}
369
370static void
371ExaSolid(PixmapPtr pPixmap, int x0, int y0, int x1, int y1)
372{
373    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
374    modesettingPtr ms = modesettingPTR(pScrn);
375    struct exa_context *exa = ms->exa;
376    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
377
378#if DEBUG_PRINT
379    debug_printf("\tExaSolid(%d, %d, %d, %d)\n", x0, y0, x1, y1);
380#endif
381
382    if (x0 == 0 && y0 == 0 &&
383        x1 == pPixmap->drawable.width && y1 == pPixmap->drawable.height) {
384       exa->pipe->clear(exa->pipe, PIPE_CLEAR_COLOR, exa->solid_color, 0.0, 0);
385       return;
386    }
387
388    xorg_solid(exa, priv, x0, y0, x1, y1) ;
389}
390
391
392static void
393ExaDoneSolid(PixmapPtr pPixmap)
394{
395    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
396    modesettingPtr ms = modesettingPTR(pScrn);
397    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
398    struct exa_context *exa = ms->exa;
399
400    if (!priv)
401	return;
402
403    xorg_composite_done(exa);
404}
405
406/***********************************************************************
407 * Copy Blits
408 */
409
410static Bool
411ExaPrepareCopy(PixmapPtr pSrcPixmap, PixmapPtr pDstPixmap, int xdir,
412	       int ydir, int alu, Pixel planeMask)
413{
414    ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
415    modesettingPtr ms = modesettingPTR(pScrn);
416    struct exa_context *exa = ms->exa;
417    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
418    struct exa_pixmap_priv *src_priv = exaGetPixmapDriverPrivate(pSrcPixmap);
419
420#if DEBUG_PRINT
421    debug_printf("ExaPrepareCopy\n");
422#endif
423
424    if (!exa->accel)
425	return FALSE;
426
427    if (!exa->pipe)
428	XORG_FALLBACK("accle not enabled");
429
430    if (!priv || !priv->tex)
431	XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
432
433    if (!src_priv || !src_priv->tex)
434	XORG_FALLBACK("pSrc %s", !src_priv ? "!priv" : "!priv->tex");
435
436    if (!EXA_PM_IS_SOLID(&pSrcPixmap->drawable, planeMask))
437	XORG_FALLBACK("planeMask is not solid");
438
439    if (alu != GXcopy)
440	XORG_FALLBACK("alu not GXcopy");
441
442    if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
443                                        priv->tex->target,
444                                        PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
445	XORG_FALLBACK("pDst format %s", util_format_name(priv->tex->format));
446
447    if (!exa->scrn->is_format_supported(exa->scrn, src_priv->tex->format,
448                                        src_priv->tex->target,
449                                        PIPE_TEXTURE_USAGE_SAMPLER, 0))
450	XORG_FALLBACK("pSrc format %s", util_format_name(src_priv->tex->format));
451
452    exa->copy.src = src_priv;
453    exa->copy.dst = priv;
454
455    /* For same-surface copies, the pipe->surface_copy path is clearly
456     * superior, providing it is implemented.  In other cases it's not
457     * clear what the better path would be, and eventually we'd
458     * probably want to gather timings and choose dynamically.
459     */
460    if (exa->pipe->surface_copy &&
461        exa->copy.src == exa->copy.dst) {
462
463       exa->copy.use_surface_copy = TRUE;
464
465       exa->copy.src_surface =
466          exa->scrn->get_tex_surface( exa->scrn,
467                                      exa->copy.src->tex,
468                                      0, 0, 0,
469                                      PIPE_BUFFER_USAGE_GPU_READ);
470
471       exa->copy.dst_surface =
472          exa->scrn->get_tex_surface( exa->scrn,
473                                      exa->copy.dst->tex,
474                                      0, 0, 0,
475                                      PIPE_BUFFER_USAGE_GPU_WRITE );
476    }
477    else {
478       exa->copy.use_surface_copy = FALSE;
479
480       if (exa->copy.dst == exa->copy.src)
481          exa->copy.src_texture = renderer_clone_texture( exa->renderer,
482                                                          exa->copy.src->tex );
483       else
484          pipe_texture_reference(&exa->copy.src_texture,
485                                 exa->copy.src->tex);
486
487       exa->copy.dst_surface =
488          exa->scrn->get_tex_surface(exa->scrn,
489                                     exa->copy.dst->tex,
490                                     0, 0, 0,
491                                     PIPE_BUFFER_USAGE_GPU_WRITE);
492
493
494       renderer_copy_prepare(exa->renderer,
495                             exa->copy.dst_surface,
496                             exa->copy.src_texture );
497    }
498
499
500    return TRUE;
501}
502
503static void
504ExaCopy(PixmapPtr pDstPixmap, int srcX, int srcY, int dstX, int dstY,
505	int width, int height)
506{
507   ScrnInfoPtr pScrn = xf86Screens[pDstPixmap->drawable.pScreen->myNum];
508   modesettingPtr ms = modesettingPTR(pScrn);
509   struct exa_context *exa = ms->exa;
510   struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDstPixmap);
511
512#if DEBUG_PRINT
513   debug_printf("\tExaCopy(srcx=%d, srcy=%d, dstX=%d, dstY=%d, w=%d, h=%d)\n",
514                srcX, srcY, dstX, dstY, width, height);
515#endif
516
517   debug_assert(priv == exa->copy.dst);
518   (void) priv;
519
520   if (exa->copy.use_surface_copy) {
521      /* XXX: consider exposing >1 box in surface_copy interface.
522       */
523      exa->pipe->surface_copy( exa->pipe,
524                             exa->copy.dst_surface,
525                             dstX, dstY,
526                             exa->copy.src_surface,
527                             srcX, srcY,
528                             width, height );
529   }
530   else {
531      renderer_copy_pixmap(exa->renderer,
532                           dstX, dstY,
533                           srcX, srcY,
534                           width, height,
535                           exa->copy.src_texture->width0,
536                           exa->copy.src_texture->height0);
537   }
538}
539
540static void
541ExaDoneCopy(PixmapPtr pPixmap)
542{
543    ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
544    modesettingPtr ms = modesettingPTR(pScrn);
545    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
546    struct exa_context *exa = ms->exa;
547
548    if (!priv)
549	return;
550
551   renderer_draw_flush(exa->renderer);
552
553   exa->copy.src = NULL;
554   exa->copy.dst = NULL;
555   pipe_surface_reference(&exa->copy.src_surface, NULL);
556   pipe_surface_reference(&exa->copy.dst_surface, NULL);
557   pipe_texture_reference(&exa->copy.src_texture, NULL);
558}
559
560
561
562static Bool
563picture_check_formats(struct exa_pixmap_priv *pSrc, PicturePtr pSrcPicture)
564{
565   if (pSrc->picture_format == pSrcPicture->format)
566      return TRUE;
567
568   if (pSrc->picture_format != PICT_a8r8g8b8)
569      return FALSE;
570
571   /* pSrc->picture_format == PICT_a8r8g8b8 */
572   switch (pSrcPicture->format) {
573   case PICT_a8r8g8b8:
574   case PICT_x8r8g8b8:
575   case PICT_a8b8g8r8:
576   case PICT_x8b8g8r8:
577   /* just treat these two as x8... */
578   case PICT_r8g8b8:
579   case PICT_b8g8r8:
580      return TRUE;
581#ifdef PICT_TYPE_BGRA
582   case PICT_b8g8r8a8:
583   case PICT_b8g8r8x8:
584      return FALSE; /* does not support swizzleing the alpha channel yet */
585   case PICT_a2r10g10b10:
586   case PICT_x2r10g10b10:
587   case PICT_a2b10g10r10:
588   case PICT_x2b10g10r10:
589      return FALSE;
590#endif
591   default:
592      return FALSE;
593   }
594   return FALSE;
595}
596
597/***********************************************************************
598 * Composite entrypoints
599 */
600
601static Bool
602ExaCheckComposite(int op,
603		  PicturePtr pSrcPicture, PicturePtr pMaskPicture,
604		  PicturePtr pDstPicture)
605{
606   ScrnInfoPtr pScrn = xf86Screens[pDstPicture->pDrawable->pScreen->myNum];
607   modesettingPtr ms = modesettingPTR(pScrn);
608   struct exa_context *exa = ms->exa;
609
610#if DEBUG_PRINT
611   debug_printf("ExaCheckComposite(%d, %p, %p, %p) = %d\n",
612                op, pSrcPicture, pMaskPicture, pDstPicture, accelerated);
613#endif
614
615   if (!exa->accel)
616       return FALSE;
617
618   return xorg_composite_accelerated(op,
619				     pSrcPicture,
620				     pMaskPicture,
621				     pDstPicture);
622}
623
624
625static Bool
626ExaPrepareComposite(int op, PicturePtr pSrcPicture,
627		    PicturePtr pMaskPicture, PicturePtr pDstPicture,
628		    PixmapPtr pSrc, PixmapPtr pMask, PixmapPtr pDst)
629{
630   ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
631   modesettingPtr ms = modesettingPTR(pScrn);
632   struct exa_context *exa = ms->exa;
633   struct exa_pixmap_priv *priv;
634
635   if (!exa->accel)
636       return FALSE;
637
638#if DEBUG_PRINT
639   debug_printf("ExaPrepareComposite(%d, src=0x%p, mask=0x%p, dst=0x%p)\n",
640                op, pSrcPicture, pMaskPicture, pDstPicture);
641   debug_printf("\tFormats: src(%s), mask(%s), dst(%s)\n",
642                pSrcPicture ? render_format_name(pSrcPicture->format) : "none",
643                pMaskPicture ? render_format_name(pMaskPicture->format) : "none",
644                pDstPicture ? render_format_name(pDstPicture->format) : "none");
645#endif
646   if (!exa->pipe)
647      XORG_FALLBACK("accle not enabled");
648
649   priv = exaGetPixmapDriverPrivate(pDst);
650   if (!priv || !priv->tex)
651      XORG_FALLBACK("pDst %s", !priv ? "!priv" : "!priv->tex");
652
653   if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
654                                       priv->tex->target,
655                                       PIPE_TEXTURE_USAGE_RENDER_TARGET, 0))
656      XORG_FALLBACK("pDst format: %s", util_format_name(priv->tex->format));
657
658   if (priv->picture_format != pDstPicture->format)
659      XORG_FALLBACK("pDst pic_format: %s != %s",
660                    render_format_name(priv->picture_format),
661                    render_format_name(pDstPicture->format));
662
663   if (pSrc) {
664      priv = exaGetPixmapDriverPrivate(pSrc);
665      if (!priv || !priv->tex)
666         XORG_FALLBACK("pSrc %s", !priv ? "!priv" : "!priv->tex");
667
668      if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
669                                          priv->tex->target,
670                                          PIPE_TEXTURE_USAGE_SAMPLER, 0))
671         XORG_FALLBACK("pSrc format: %s", util_format_name(priv->tex->format));
672
673      if (!picture_check_formats(priv, pSrcPicture))
674         XORG_FALLBACK("pSrc pic_format: %s != %s",
675                       render_format_name(priv->picture_format),
676                       render_format_name(pSrcPicture->format));
677
678   }
679
680   if (pMask) {
681      priv = exaGetPixmapDriverPrivate(pMask);
682      if (!priv || !priv->tex)
683         XORG_FALLBACK("pMask %s", !priv ? "!priv" : "!priv->tex");
684
685      if (!exa->scrn->is_format_supported(exa->scrn, priv->tex->format,
686                                          priv->tex->target,
687                                          PIPE_TEXTURE_USAGE_SAMPLER, 0))
688         XORG_FALLBACK("pMask format: %s", util_format_name(priv->tex->format));
689
690      if (!picture_check_formats(priv, pMaskPicture))
691         XORG_FALLBACK("pMask pic_format: %s != %s",
692                       render_format_name(priv->picture_format),
693                       render_format_name(pMaskPicture->format));
694   }
695
696   return xorg_composite_bind_state(exa, op, pSrcPicture, pMaskPicture,
697                                    pDstPicture,
698                                    pSrc ? exaGetPixmapDriverPrivate(pSrc) : NULL,
699                                    pMask ? exaGetPixmapDriverPrivate(pMask) : NULL,
700                                    exaGetPixmapDriverPrivate(pDst));
701}
702
703static void
704ExaComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,
705	     int dstX, int dstY, int width, int height)
706{
707   ScrnInfoPtr pScrn = xf86Screens[pDst->drawable.pScreen->myNum];
708   modesettingPtr ms = modesettingPTR(pScrn);
709   struct exa_context *exa = ms->exa;
710   struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pDst);
711
712#if DEBUG_PRINT
713   debug_printf("\tExaComposite(src[%d,%d], mask=[%d, %d], dst=[%d, %d], dim=[%d, %d])\n",
714                srcX, srcY, maskX, maskY, dstX, dstY, width, height);
715   debug_printf("\t   Num bound samplers = %d\n",
716                exa->num_bound_samplers);
717#endif
718
719   xorg_composite(exa, priv, srcX, srcY, maskX, maskY,
720                  dstX, dstY, width, height);
721}
722
723
724
725static void
726ExaDoneComposite(PixmapPtr pPixmap)
727{
728   ScrnInfoPtr pScrn = xf86Screens[pPixmap->drawable.pScreen->myNum];
729   modesettingPtr ms = modesettingPTR(pScrn);
730   struct exa_context *exa = ms->exa;
731
732   xorg_composite_done(exa);
733}
734
735
736/***********************************************************************
737 * Pixmaps
738 */
739
740static void *
741ExaCreatePixmap(ScreenPtr pScreen, int size, int align)
742{
743    struct exa_pixmap_priv *priv;
744
745    priv = xcalloc(1, sizeof(struct exa_pixmap_priv));
746    if (!priv)
747	return NULL;
748
749    return priv;
750}
751
752static void
753ExaDestroyPixmap(ScreenPtr pScreen, void *dPriv)
754{
755    struct exa_pixmap_priv *priv = (struct exa_pixmap_priv *)dPriv;
756
757    if (!priv)
758	return;
759
760    pipe_texture_reference(&priv->tex, NULL);
761
762    xfree(priv);
763}
764
765static Bool
766ExaPixmapIsOffscreen(PixmapPtr pPixmap)
767{
768    struct exa_pixmap_priv *priv;
769
770    priv = exaGetPixmapDriverPrivate(pPixmap);
771
772    if (!priv)
773	return FALSE;
774
775    if (priv->tex)
776	return TRUE;
777
778    return FALSE;
779}
780
781int
782xorg_exa_set_displayed_usage(PixmapPtr pPixmap)
783{
784    struct exa_pixmap_priv *priv;
785    priv = exaGetPixmapDriverPrivate(pPixmap);
786
787    if (!priv) {
788	FatalError("NO PIXMAP PRIVATE\n");
789	return 0;
790    }
791
792    priv->flags |= PIPE_TEXTURE_USAGE_SCANOUT;
793
794    return 0;
795}
796
797int
798xorg_exa_set_shared_usage(PixmapPtr pPixmap)
799{
800    struct exa_pixmap_priv *priv;
801    priv = exaGetPixmapDriverPrivate(pPixmap);
802
803    if (!priv) {
804	FatalError("NO PIXMAP PRIVATE\n");
805	return 0;
806    }
807
808    priv->flags |= PIPE_TEXTURE_USAGE_SHARED;
809
810    return 0;
811}
812
813
814
815static Bool
816size_match( int width, int tex_width )
817{
818#if ROUND_UP_TEXTURES
819   if (width > tex_width)
820      return FALSE;
821
822   if (width * 2 < tex_width)
823      return FALSE;
824
825   return TRUE;
826#else
827   return width == tex_width;
828#endif
829}
830
831static Bool
832ExaModifyPixmapHeader(PixmapPtr pPixmap, int width, int height,
833		      int depth, int bitsPerPixel, int devKind,
834		      pointer pPixData)
835{
836    ScreenPtr pScreen = pPixmap->drawable.pScreen;
837    ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
838    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
839    modesettingPtr ms = modesettingPTR(pScrn);
840    struct exa_context *exa = ms->exa;
841
842    if (!priv || pPixData)
843	return FALSE;
844
845    if (0) {
846       debug_printf("%s pixmap %p sz %dx%dx%d devKind %d\n",
847                    __FUNCTION__, pPixmap, width, height, bitsPerPixel, devKind);
848
849       if (priv->tex)
850          debug_printf("  ==> old texture %dx%d\n",
851                       priv->tex->width0,
852                       priv->tex->height0);
853    }
854
855
856    if (depth <= 0)
857	depth = pPixmap->drawable.depth;
858
859    if (bitsPerPixel <= 0)
860	bitsPerPixel = pPixmap->drawable.bitsPerPixel;
861
862    if (width <= 0)
863	width = pPixmap->drawable.width;
864
865    if (height <= 0)
866	height = pPixmap->drawable.height;
867
868    if (width <= 0 || height <= 0 || depth <= 0)
869	return FALSE;
870
871    miModifyPixmapHeader(pPixmap, width, height, depth,
872			     bitsPerPixel, devKind, NULL);
873
874    priv->width = width;
875    priv->height = height;
876
877    /* Deal with screen resize */
878    if ((exa->accel || priv->flags) &&
879        (!priv->tex ||
880         !size_match(width, priv->tex->width0) ||
881         !size_match(height, priv->tex->height0) ||
882         priv->tex_flags != priv->flags)) {
883	struct pipe_texture *texture = NULL;
884	struct pipe_texture template;
885
886	memset(&template, 0, sizeof(template));
887	template.target = PIPE_TEXTURE_2D;
888	exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &priv->picture_format);
889        if (ROUND_UP_TEXTURES && priv->flags == 0) {
890           template.width0 = util_next_power_of_two(width);
891           template.height0 = util_next_power_of_two(height);
892        }
893        else {
894           template.width0 = width;
895           template.height0 = height;
896        }
897
898	template.depth0 = 1;
899	template.last_level = 0;
900	template.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET | priv->flags;
901	priv->tex_flags = priv->flags;
902	texture = exa->scrn->texture_create(exa->scrn, &template);
903
904	if (priv->tex) {
905	    struct pipe_surface *dst_surf;
906	    struct pipe_surface *src_surf;
907
908	    dst_surf = exa->scrn->get_tex_surface(
909		exa->scrn, texture, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
910	    src_surf = xorg_gpu_surface(exa->pipe->screen, priv);
911            if (exa->pipe->surface_copy) {
912               exa->pipe->surface_copy(exa->pipe, dst_surf, 0, 0, src_surf,
913                                       0, 0, min(width, texture->width0),
914                                       min(height, texture->height0));
915            } else {
916               util_surface_copy(exa->pipe, FALSE, dst_surf, 0, 0, src_surf,
917                                 0, 0, min(width, texture->width0),
918                                 min(height, texture->height0));
919            }
920	    exa->scrn->tex_surface_destroy(dst_surf);
921	    exa->scrn->tex_surface_destroy(src_surf);
922	}
923
924	pipe_texture_reference(&priv->tex, texture);
925	/* the texture we create has one reference */
926	pipe_texture_reference(&texture, NULL);
927    }
928
929    return TRUE;
930}
931
932struct pipe_texture *
933xorg_exa_get_texture(PixmapPtr pPixmap)
934{
935   struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
936   struct pipe_texture *tex = NULL;
937   pipe_texture_reference(&tex, priv->tex);
938   return tex;
939}
940
941Bool
942xorg_exa_set_texture(PixmapPtr pPixmap, struct  pipe_texture *tex)
943{
944    struct exa_pixmap_priv *priv = exaGetPixmapDriverPrivate(pPixmap);
945
946    int mask = PIPE_TEXTURE_USAGE_SHARED | PIPE_TEXTURE_USAGE_SCANOUT;
947
948    if (!priv)
949	return FALSE;
950
951    if (pPixmap->drawable.width != tex->width0 ||
952	pPixmap->drawable.height != tex->height0)
953	return FALSE;
954
955    pipe_texture_reference(&priv->tex, tex);
956    priv->tex_flags = tex->tex_usage & mask;
957
958    return TRUE;
959}
960
961struct pipe_texture *
962xorg_exa_create_root_texture(ScrnInfoPtr pScrn,
963			     int width, int height,
964			     int depth, int bitsPerPixel)
965{
966    modesettingPtr ms = modesettingPTR(pScrn);
967    struct exa_context *exa = ms->exa;
968    struct pipe_texture template;
969    int dummy;
970
971    memset(&template, 0, sizeof(template));
972    template.target = PIPE_TEXTURE_2D;
973    exa_get_pipe_format(depth, &template.format, &bitsPerPixel, &dummy);
974    template.width0 = width;
975    template.height0 = height;
976    template.depth0 = 1;
977    template.last_level = 0;
978    template.tex_usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
979    template.tex_usage |= PIPE_TEXTURE_USAGE_SCANOUT;
980    template.tex_usage |= PIPE_TEXTURE_USAGE_SHARED;
981
982    return exa->scrn->texture_create(exa->scrn, &template);
983}
984
985void
986xorg_exa_close(ScrnInfoPtr pScrn)
987{
988   modesettingPtr ms = modesettingPTR(pScrn);
989   struct exa_context *exa = ms->exa;
990
991   renderer_destroy(exa->renderer);
992
993   if (exa->pipe)
994      exa->pipe->destroy(exa->pipe);
995   exa->pipe = NULL;
996   /* Since this was shared be proper with the pointer */
997   ms->ctx = NULL;
998
999   exaDriverFini(pScrn->pScreen);
1000   xfree(exa);
1001   ms->exa = NULL;
1002}
1003
1004void *
1005xorg_exa_init(ScrnInfoPtr pScrn, Bool accel)
1006{
1007   modesettingPtr ms = modesettingPTR(pScrn);
1008   struct exa_context *exa;
1009   ExaDriverPtr pExa;
1010
1011   exa = xcalloc(1, sizeof(struct exa_context));
1012   if (!exa)
1013      return NULL;
1014
1015   pExa = exaDriverAlloc();
1016   if (!pExa) {
1017      goto out_err;
1018   }
1019
1020   memset(pExa, 0, sizeof(*pExa));
1021
1022   pExa->exa_major         = 2;
1023   pExa->exa_minor         = 2;
1024   pExa->memoryBase        = 0;
1025   pExa->memorySize        = 0;
1026   pExa->offScreenBase     = 0;
1027   pExa->pixmapOffsetAlign = 0;
1028   pExa->pixmapPitchAlign  = 1;
1029   pExa->flags             = EXA_OFFSCREEN_PIXMAPS | EXA_HANDLES_PIXMAPS;
1030#ifdef EXA_SUPPORTS_PREPARE_AUX
1031   pExa->flags            |= EXA_SUPPORTS_PREPARE_AUX;
1032#endif
1033#ifdef EXA_MIXED_PIXMAPS
1034   pExa->flags            |= EXA_MIXED_PIXMAPS;
1035#endif
1036   pExa->maxX              = 8191; /* FIXME */
1037   pExa->maxY              = 8191; /* FIXME */
1038
1039   pExa->WaitMarker         = ExaWaitMarker;
1040   pExa->MarkSync           = ExaMarkSync;
1041   pExa->PrepareSolid       = ExaPrepareSolid;
1042   pExa->Solid              = ExaSolid;
1043   pExa->DoneSolid          = ExaDoneSolid;
1044   pExa->PrepareCopy        = ExaPrepareCopy;
1045   pExa->Copy               = ExaCopy;
1046   pExa->DoneCopy           = ExaDoneCopy;
1047   pExa->CheckComposite     = ExaCheckComposite;
1048   pExa->PrepareComposite   = ExaPrepareComposite;
1049   pExa->Composite          = ExaComposite;
1050   pExa->DoneComposite      = ExaDoneComposite;
1051   pExa->PixmapIsOffscreen  = ExaPixmapIsOffscreen;
1052   pExa->DownloadFromScreen = ExaDownloadFromScreen;
1053   pExa->UploadToScreen     = ExaUploadToScreen;
1054   pExa->PrepareAccess      = ExaPrepareAccess;
1055   pExa->FinishAccess       = ExaFinishAccess;
1056   pExa->CreatePixmap       = ExaCreatePixmap;
1057   pExa->DestroyPixmap      = ExaDestroyPixmap;
1058   pExa->ModifyPixmapHeader = ExaModifyPixmapHeader;
1059
1060   if (!exaDriverInit(pScrn->pScreen, pExa)) {
1061      goto out_err;
1062   }
1063
1064   exa->scrn = ms->screen;
1065   exa->pipe = exa->scrn->context_create(exa->scrn, NULL);
1066   if (exa->pipe == NULL)
1067      goto out_err;
1068
1069   /* Share context with DRI */
1070   ms->ctx = exa->pipe;
1071
1072   exa->renderer = renderer_create(exa->pipe);
1073   exa->accel = accel;
1074
1075   return (void *)exa;
1076
1077out_err:
1078   xorg_exa_close(pScrn);
1079
1080   return NULL;
1081}
1082
1083struct pipe_surface *
1084xorg_gpu_surface(struct pipe_screen *scrn, struct exa_pixmap_priv *priv)
1085{
1086   return scrn->get_tex_surface(scrn, priv->tex, 0, 0, 0,
1087                                PIPE_BUFFER_USAGE_GPU_READ |
1088                                PIPE_BUFFER_USAGE_GPU_WRITE);
1089
1090}
1091
1092void xorg_exa_flush(struct exa_context *exa, uint pipeFlushFlags,
1093                    struct pipe_fence_handle **fence)
1094{
1095   exa->pipe->flush(exa->pipe, pipeFlushFlags, fence);
1096}
1097
1098void xorg_exa_finish(struct exa_context *exa)
1099{
1100   struct pipe_fence_handle *fence = NULL;
1101
1102   xorg_exa_flush(exa, PIPE_FLUSH_RENDER_CACHE, &fence);
1103
1104   exa->pipe->screen->fence_finish(exa->pipe->screen, fence, 0);
1105   exa->pipe->screen->fence_reference(exa->pipe->screen, &fence, NULL);
1106}
1107
1108