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/* cairo - a vector graphics library with display and print output
2
 *
3
 * Copyright © 2012 Intel Corporation
4
 *
5
 * This library is free software; you can redistribute it and/or
6
 * modify it either under the terms of the GNU Lesser General Public
7
 * License version 2.1 as published by the Free Software Foundation
8
 * (the "LGPL") or, at your option, under the terms of the Mozilla
9
 * Public License Version 1.1 (the "MPL"). If you do not alter this
10
 * notice, a recipient may use your version of this file under either
11
 * the MPL or the LGPL.
12
 *
13
 * You should have received a copy of the LGPL along with this library
14
 * in the file COPYING-LGPL-2.1; if not, write to the Free Software
15
 * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
16
 * You should have received a copy of the MPL along with this library
17
 * in the file COPYING-MPL-1.1
18
 *
19
 * The contents of this file are subject to the Mozilla Public License
20
 * Version 1.1 (the "License"); you may not use this file except in
21
 * compliance with the License. You may obtain a copy of the License at
22
 * http://www.mozilla.org/MPL/
23
 *
24
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
25
 * OF ANY KIND, either express or implied. See the LGPL or the MPL for
26
 * the specific language governing rights and limitations.
27
 *
28
 * The Original Code is the cairo graphics library.
29
 *
30
 * The Initial Developer of the Original Code is Chris Wilson
31
 *
32
 * Contributor(s):
33
 *    Chris Wilson 
34
 */
35
 
36
#include "cairoint.h"
37
#include "cairo-directfb.h"
38
 
39
#include "cairo-clip-private.h"
40
#include "cairo-compositor-private.h"
41
#include "cairo-default-context-private.h"
42
#include "cairo-error-private.h"
43
#include "cairo-image-surface-inline.h"
44
#include "cairo-pattern-private.h"
45
#include "cairo-surface-backend-private.h"
46
#include "cairo-surface-fallback-private.h"
47
 
48
#include 
49
 
50
#include 
51
#include 
52
#include 
53
#include 
54
#include 
55
 
56
slim_hidden_proto(cairo_directfb_surface_create);
57
 
58
typedef struct _cairo_dfb_surface {
59
    cairo_image_surface_t image;
60
 
61
    IDirectFB			*dfb;
62
    IDirectFBSurface		*dfb_surface;
63
 
64
    unsigned             blit_premultiplied : 1;
65
} cairo_dfb_surface_t;
66
 
67
static cairo_content_t
68
_directfb_format_to_content (DFBSurfacePixelFormat format)
69
{
70
    cairo_content_t content = 0;
71
 
72
    if (DFB_PIXELFORMAT_HAS_ALPHA (format))
73
	content |= CAIRO_CONTENT_ALPHA;
74
    if (DFB_COLOR_BITS_PER_PIXEL (format))
75
	content |= CAIRO_CONTENT_COLOR_ALPHA;
76
 
77
    assert(content);
78
    return content;
79
}
80
 
81
static inline pixman_format_code_t
82
_directfb_to_pixman_format (DFBSurfacePixelFormat format)
83
{
84
    switch (format) {
85
    case DSPF_UNKNOWN: return 0;
86
    case DSPF_ARGB1555: return PIXMAN_a1r5g5b5;
87
    case DSPF_RGB16: return PIXMAN_r5g6b5;
88
    case DSPF_RGB24: return PIXMAN_r8g8b8;
89
    case DSPF_RGB32: return PIXMAN_x8r8g8b8;
90
    case DSPF_ARGB: return PIXMAN_a8r8g8b8;
91
    case DSPF_A8: return PIXMAN_a8;
92
    case DSPF_YUY2: return PIXMAN_yuy2;
93
    case DSPF_RGB332: return PIXMAN_r3g3b2;
94
    case DSPF_UYVY: return 0;
95
    case DSPF_I420: return 0;
96
    case DSPF_YV12: return PIXMAN_yv12;
97
    case DSPF_LUT8: return 0;
98
    case DSPF_ALUT44: return 0;
99
    case DSPF_AiRGB: return 0;
100
    case DSPF_A1: return 0; /* bit reversed, oops */
101
    case DSPF_NV12: return 0;
102
    case DSPF_NV16: return 0;
103
    case DSPF_ARGB2554: return 0;
104
    case DSPF_ARGB4444: return PIXMAN_a4r4g4b4;
105
    case DSPF_NV21: return 0;
106
    case DSPF_AYUV: return 0;
107
    case DSPF_A4: return PIXMAN_a4;
108
    case DSPF_ARGB1666: return 0;
109
    case DSPF_ARGB6666: return 0;
110
    case DSPF_RGB18: return 0;
111
    case DSPF_LUT2: return 0;
112
    case DSPF_RGB444: return PIXMAN_x4r4g4b4;
113
    case DSPF_RGB555: return PIXMAN_x1r5g5b5;
114
#if DFB_NUM_PIXELFORMATS >= 29
115
    case DSPF_BGR555: return PIXMAN_x1b5g5r5;
116
#endif
117
    }
118
    return 0;
119
}
120
 
121
static cairo_surface_t *
122
_cairo_dfb_surface_create_similar (void            *abstract_src,
123
				   cairo_content_t  content,
124
				   int              width,
125
				   int              height)
126
{
127
    cairo_dfb_surface_t *other  = abstract_src;
128
    DFBSurfacePixelFormat     format;
129
    IDirectFBSurface      *buffer;
130
    DFBSurfaceDescription  dsc;
131
    cairo_surface_t *surface;
132
 
133
    if (width <= 0 || height <= 0)
134
	return _cairo_image_surface_create_with_content (content, width, height);
135
 
136
    switch (content) {
137
    default:
138
	ASSERT_NOT_REACHED;
139
    case CAIRO_CONTENT_COLOR_ALPHA:
140
	format = DSPF_ARGB;
141
	break;
142
    case CAIRO_CONTENT_COLOR:
143
	format = DSPF_RGB32;
144
	break;
145
    case CAIRO_CONTENT_ALPHA:
146
	format = DSPF_A8;
147
	break;
148
    }
149
 
150
    dsc.flags       = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT;
151
    dsc.caps        = DSCAPS_PREMULTIPLIED;
152
    dsc.width       = width;
153
    dsc.height      = height;
154
    dsc.pixelformat = format;
155
 
156
    if (other->dfb->CreateSurface (other->dfb, &dsc, &buffer))
157
	return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_DEVICE_ERROR));
158
 
159
    surface = cairo_directfb_surface_create (other->dfb, buffer);
160
    buffer->Release (buffer);
161
 
162
    return surface;
163
}
164
 
165
static cairo_status_t
166
_cairo_dfb_surface_finish (void *abstract_surface)
167
{
168
    cairo_dfb_surface_t *surface = abstract_surface;
169
 
170
    surface->dfb_surface->Release (surface->dfb_surface);
171
    return _cairo_image_surface_finish (abstract_surface);
172
}
173
 
174
static cairo_image_surface_t *
175
_cairo_dfb_surface_map_to_image (void *abstract_surface,
176
				 const cairo_rectangle_int_t *extents)
177
{
178
    cairo_dfb_surface_t *surface = abstract_surface;
179
 
180
    if (surface->image.pixman_image == NULL) {
181
	IDirectFBSurface *buffer = surface->dfb_surface;
182
	pixman_image_t *image;
183
	void *data;
184
	int pitch;
185
 
186
	if (buffer->Lock (buffer, DSLF_READ | DSLF_WRITE, &data, &pitch))
187
	    return _cairo_image_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
188
 
189
	image = pixman_image_create_bits (surface->image.pixman_format,
190
					  surface->image.width,
191
					  surface->image.height,
192
					  data, pitch);
193
	if (image == NULL) {
194
	    buffer->Unlock (buffer);
195
	    return _cairo_image_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
196
	}
197
	_cairo_image_surface_init (&surface->image, image, surface->image.pixman_format);
198
    }
199
 
200
    return _cairo_image_surface_map_to_image (&surface->image.base, extents);
201
}
202
 
203
static cairo_int_status_t
204
_cairo_dfb_surface_unmap_image (void *abstract_surface,
205
				cairo_image_surface_t *image)
206
{
207
    cairo_dfb_surface_t *surface = abstract_surface;
208
    return _cairo_image_surface_unmap_image (&surface->image.base, image);
209
}
210
 
211
static cairo_status_t
212
_cairo_dfb_surface_flush (void *abstract_surface,
213
			  unsigned flags)
214
{
215
    cairo_dfb_surface_t *surface = abstract_surface;
216
 
217
    if (flags)
218
	return CAIRO_STATUS_SUCCESS;
219
 
220
    if (surface->image.pixman_image) {
221
	surface->dfb_surface->Unlock (surface->dfb_surface);
222
 
223
	pixman_image_unref (surface->image.pixman_image);
224
	surface->image.pixman_image = NULL;
225
	surface->image.data = NULL;
226
    }
227
 
228
    return CAIRO_STATUS_SUCCESS;
229
}
230
 
231
#if 0
232
static inline DFBSurfacePixelFormat
233
_directfb_from_pixman_format (pixman_format_code_t format)
234
{
235
    switch ((int) format) {
236
    case PIXMAN_a1r5g5b5: return DSPF_ARGB1555;
237
    case PIXMAN_r5g6b5: return DSPF_RGB16;
238
    case PIXMAN_r8g8b8: return DSPF_RGB24;
239
    case PIXMAN_x8r8g8b8: return DSPF_RGB32;
240
    case PIXMAN_a8r8g8b8: return DSPF_ARGB;
241
    case PIXMAN_a8: return DSPF_A8;
242
    case PIXMAN_yuy2: return DSPF_YUY2;
243
    case PIXMAN_r3g3b2: return DSPF_RGB332;
244
    case PIXMAN_yv12: return DSPF_YV12;
245
    case PIXMAN_a1: return DSPF_A1; /* bit reversed, oops */
246
    case PIXMAN_a4r4g4b4: return DSPF_ARGB4444;
247
    case PIXMAN_a4: return DSPF_A4;
248
    case PIXMAN_x4r4g4b4: return DSPF_RGB444;
249
    case PIXMAN_x1r5g5b5: return DSPF_RGB555;
250
#if DFB_NUM_PIXELFORMATS >= 29
251
    case PIXMAN_x1b5g5r5: return DSPF_BGR555;
252
#endif
253
    default: return 0;
254
    }
255
}
256
 
257
static cairo_bool_t
258
_directfb_get_operator (cairo_operator_t         operator,
259
                        DFBSurfaceBlendFunction *ret_srcblend,
260
                        DFBSurfaceBlendFunction *ret_dstblend)
261
{
262
    DFBSurfaceBlendFunction srcblend = DSBF_ONE;
263
    DFBSurfaceBlendFunction dstblend = DSBF_ZERO;
264
 
265
    switch (operator) {
266
    case CAIRO_OPERATOR_CLEAR:
267
	srcblend = DSBF_ZERO;
268
	dstblend = DSBF_ZERO;
269
	break;
270
    case CAIRO_OPERATOR_SOURCE:
271
	srcblend = DSBF_ONE;
272
	dstblend = DSBF_ZERO;
273
	break;
274
    case CAIRO_OPERATOR_OVER:
275
	srcblend = DSBF_ONE;
276
	dstblend = DSBF_INVSRCALPHA;
277
	break;
278
    case CAIRO_OPERATOR_IN:
279
	srcblend = DSBF_DESTALPHA;
280
	dstblend = DSBF_ZERO;
281
	break;
282
    case CAIRO_OPERATOR_OUT:
283
	srcblend = DSBF_INVDESTALPHA;
284
	dstblend = DSBF_ZERO;
285
	break;
286
    case CAIRO_OPERATOR_ATOP:
287
	srcblend = DSBF_DESTALPHA;
288
	dstblend = DSBF_INVSRCALPHA;
289
	break;
290
    case CAIRO_OPERATOR_DEST:
291
	srcblend = DSBF_ZERO;
292
	dstblend = DSBF_ONE;
293
	break;
294
    case CAIRO_OPERATOR_DEST_OVER:
295
	srcblend = DSBF_INVDESTALPHA;
296
	dstblend = DSBF_ONE;
297
	break;
298
    case CAIRO_OPERATOR_DEST_IN:
299
	srcblend = DSBF_ZERO;
300
	dstblend = DSBF_SRCALPHA;
301
	break;
302
    case CAIRO_OPERATOR_DEST_OUT:
303
	srcblend = DSBF_ZERO;
304
	dstblend = DSBF_INVSRCALPHA;
305
	break;
306
    case CAIRO_OPERATOR_DEST_ATOP:
307
	srcblend = DSBF_INVDESTALPHA;
308
	dstblend = DSBF_SRCALPHA;
309
	break;
310
    case CAIRO_OPERATOR_XOR:
311
	srcblend = DSBF_INVDESTALPHA;
312
	dstblend = DSBF_INVSRCALPHA;
313
	break;
314
    case CAIRO_OPERATOR_ADD:
315
	srcblend = DSBF_ONE;
316
	dstblend = DSBF_ONE;
317
	break;
318
    case CAIRO_OPERATOR_SATURATE:
319
	/* XXX This does not work. */
320
#if 0
321
	srcblend = DSBF_SRCALPHASAT;
322
	dstblend = DSBF_ONE;
323
	break;
324
#endif
325
    case CAIRO_OPERATOR_MULTIPLY:
326
    case CAIRO_OPERATOR_SCREEN:
327
    case CAIRO_OPERATOR_OVERLAY:
328
    case CAIRO_OPERATOR_DARKEN:
329
    case CAIRO_OPERATOR_LIGHTEN:
330
    case CAIRO_OPERATOR_COLOR_DODGE:
331
    case CAIRO_OPERATOR_COLOR_BURN:
332
    case CAIRO_OPERATOR_HARD_LIGHT:
333
    case CAIRO_OPERATOR_SOFT_LIGHT:
334
    case CAIRO_OPERATOR_DIFFERENCE:
335
    case CAIRO_OPERATOR_EXCLUSION:
336
    case CAIRO_OPERATOR_HSL_HUE:
337
    case CAIRO_OPERATOR_HSL_SATURATION:
338
    case CAIRO_OPERATOR_HSL_COLOR:
339
    case CAIRO_OPERATOR_HSL_LUMINOSITY:
340
    default:
341
	return FALSE;
342
    }
343
 
344
    *ret_srcblend = srcblend;
345
    *ret_dstblend = dstblend;
346
 
347
    return TRUE;
348
}
349
#define RUN_CLIPPED(surface, clip_region, clip, func) {\
350
    if ((clip_region) != NULL) {\
351
	int n_clips = cairo_region_num_rectangles (clip_region), n; \
352
        for (n = 0; n < n_clips; n++) {\
353
            if (clip) {\
354
                DFBRegion  reg, *cli = (clip); \
355
		cairo_rectangle_int_t rect; \
356
		cairo_region_get_rectangle (clip_region, n, &rect); \
357
		reg.x1 = rect.x; \
358
		reg.y1 = rect.y; \
359
		reg.x2 = rect.x + rect.width - 1; \
360
		reg.y2 = rect.y + rect.height - 1; \
361
                if (reg.x2 < cli->x1 || reg.y2 < cli->y1 ||\
362
                    reg.x1 > cli->x2 || reg.y1 > cli->y2)\
363
                    continue;\
364
                if (reg.x1 < cli->x1)\
365
                    reg.x1 = cli->x1;\
366
                if (reg.y1 < cli->y1)\
367
                    reg.y1 = cli->y1;\
368
                if (reg.x2 > cli->x2)\
369
                    reg.x2 = cli->x2;\
370
                if (reg.y2 > cli->y2)\
371
                    reg.y2 = cli->y2;\
372
                (surface)->dfbsurface->SetClip ((surface)->dfbsurface, ®);\
373
            } else {\
374
		DFBRegion reg; \
375
		cairo_rectangle_int_t rect; \
376
		cairo_region_get_rectangle (clip_region, n, &rect); \
377
		reg.x1 = rect.x; \
378
		reg.y1 = rect.y; \
379
		reg.x2 = rect.x + rect.width - 1; \
380
		reg.y2 = rect.y + rect.height - 1; \
381
                (surface)->dfbsurface->SetClip ((surface)->dfbsurface, ®); \
382
            }\
383
            func;\
384
        }\
385
    } else {\
386
        (surface)->dfbsurface->SetClip ((surface)->dfbsurface, clip);\
387
        func;\
388
    }\
389
}
390
 
391
static cairo_int_status_t
392
_cairo_dfb_surface_fill_rectangles (void                  *abstract_surface,
393
                                         cairo_operator_t       op,
394
                                         const cairo_color_t   *color,
395
                                         cairo_rectangle_int_t *rects,
396
                                         int                    n_rects)
397
{
398
    cairo_dfb_surface_t *dst   = abstract_surface;
399
    DFBSurfaceDrawingFlags    flags;
400
    DFBSurfaceBlendFunction   sblend;
401
    DFBSurfaceBlendFunction   dblend;
402
    DFBRectangle              r[n_rects];
403
    int                       i;
404
 
405
    D_DEBUG_AT (CairoDFB_Render,
406
		"%s( dst=%p, op=%d, color=%p, rects=%p, n_rects=%d ).\n",
407
		__FUNCTION__, dst, op, color, rects, n_rects);
408
 
409
    if (! dst->supported_destination)
410
	return CAIRO_INT_STATUS_UNSUPPORTED;
411
 
412
    if (! _directfb_get_operator (op, &sblend, &dblend))
413
	return CAIRO_INT_STATUS_UNSUPPORTED;
414
 
415
    if (CAIRO_COLOR_IS_OPAQUE (color)) {
416
	if (sblend == DSBF_SRCALPHA)
417
	    sblend = DSBF_ONE;
418
	else if (sblend == DSBF_INVSRCALPHA)
419
	    sblend = DSBF_ZERO;
420
 
421
	if (dblend == DSBF_SRCALPHA)
422
	    dblend = DSBF_ONE;
423
	else if (dblend == DSBF_INVSRCALPHA)
424
	    dblend = DSBF_ZERO;
425
    }
426
    if ((dst->base.content & CAIRO_CONTENT_ALPHA) == 0) {
427
	if (sblend == DSBF_DESTALPHA)
428
	    sblend = DSBF_ONE;
429
	else if (sblend == DSBF_INVDESTALPHA)
430
	    sblend = DSBF_ZERO;
431
 
432
	if (dblend == DSBF_DESTALPHA)
433
	    dblend = DSBF_ONE;
434
	else if (dblend == DSBF_INVDESTALPHA)
435
	    dblend = DSBF_ZERO;
436
    }
437
 
438
    flags = (sblend == DSBF_ONE && dblend == DSBF_ZERO) ? DSDRAW_NOFX : DSDRAW_BLEND;
439
    dst->dfbsurface->SetDrawingFlags (dst->dfbsurface, flags);
440
    if (flags & DSDRAW_BLEND) {
441
	dst->dfbsurface->SetSrcBlendFunction (dst->dfbsurface, sblend);
442
	dst->dfbsurface->SetDstBlendFunction (dst->dfbsurface, dblend);
443
    }
444
 
445
    dst->dfbsurface->SetColor (dst->dfbsurface,
446
			       color->red_short >> 8,
447
			       color->green_short >> 8,
448
			       color->blue_short >> 8,
449
			       color->alpha_short >> 8);
450
 
451
    for (i = 0; i < n_rects; i++) {
452
	r[i].x = rects[i].x;
453
	r[i].y = rects[i].y;
454
	r[i].w = rects[i].width;
455
	r[i].h = rects[i].height;
456
    }
457
 
458
    RUN_CLIPPED (dst, NULL, NULL,
459
		 dst->dfbsurface->FillRectangles (dst->dfbsurface, r, n_rects));
460
 
461
    return CAIRO_STATUS_SUCCESS;
462
}
463
#endif
464
 
465
static cairo_surface_backend_t
466
_cairo_dfb_surface_backend = {
467
    CAIRO_SURFACE_TYPE_DIRECTFB, /*type*/
468
    _cairo_dfb_surface_finish, /*finish*/
469
    _cairo_default_context_create,
470
 
471
    _cairo_dfb_surface_create_similar,/*create_similar*/
472
    NULL, /* create similar image */
473
    _cairo_dfb_surface_map_to_image,
474
    _cairo_dfb_surface_unmap_image,
475
 
476
    _cairo_surface_default_source,
477
    _cairo_surface_default_acquire_source_image,
478
    _cairo_surface_default_release_source_image,
479
    NULL,
480
 
481
    NULL, /* copy_page */
482
    NULL, /* show_page */
483
 
484
    _cairo_image_surface_get_extents,
485
    _cairo_image_surface_get_font_options,
486
 
487
    _cairo_dfb_surface_flush,
488
    NULL, /* mark_dirty_rectangle */
489
 
490
    _cairo_surface_fallback_paint,
491
    _cairo_surface_fallback_mask,
492
    _cairo_surface_fallback_stroke,
493
    _cairo_surface_fallback_fill,
494
    NULL, /* fill-stroke */
495
    _cairo_surface_fallback_glyphs,
496
};
497
 
498
cairo_surface_t *
499
cairo_directfb_surface_create (IDirectFB *dfb, IDirectFBSurface *dfbsurface)
500
{
501
    cairo_dfb_surface_t *surface;
502
    DFBSurfacePixelFormat     format;
503
    DFBSurfaceCapabilities caps;
504
    pixman_format_code_t pixman_format;
505
    int width, height;
506
 
507
    D_ASSERT (dfb != NULL);
508
    D_ASSERT (dfbsurface != NULL);
509
 
510
    dfbsurface->GetPixelFormat (dfbsurface, &format);
511
    dfbsurface->GetSize (dfbsurface, &width, &height);
512
 
513
    pixman_format = _directfb_to_pixman_format (format);
514
    if (! pixman_format_supported_destination (pixman_format))
515
        return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT));
516
 
517
    surface = calloc (1, sizeof (cairo_dfb_surface_t));
518
    if (surface == NULL)
519
        return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
520
 
521
    /* XXX dfb -> device */
522
    _cairo_surface_init (&surface->image.base,
523
                         &_cairo_dfb_surface_backend,
524
			 NULL, /* device */
525
			 _directfb_format_to_content (format));
526
 
527
    surface->image.pixman_format = pixman_format;
528
    surface->image.format = _cairo_format_from_pixman_format (pixman_format);
529
 
530
    surface->image.width = width;
531
    surface->image.height = height;
532
    surface->image.depth = PIXMAN_FORMAT_DEPTH(pixman_format);
533
 
534
    surface->dfb = dfb;
535
    surface->dfb_surface = dfbsurface;
536
    dfbsurface->AddRef (dfbsurface);
537
 
538
    dfbsurface->GetCapabilities (dfbsurface, &caps);
539
    if (caps & DSCAPS_PREMULTIPLIED)
540
	surface->blit_premultiplied = TRUE;
541
 
542
    return &surface->image.base;
543
}
544
slim_hidden_def(cairo_directfb_surface_create);