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Viewing changes to src/cairo-directfb-surface.c

  • Committer: Bazaar Package Importer
  • Author(s): Sebastien Bacher
  • Date: 2008-01-17 13:00:59 UTC
  • Revision ID: james.westby@ubuntu.com-20080117130059-3gbudaudr2w8bl4w
Tags: upstream-1.5.6
Import upstream version 1.5.6

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src/cairo-directfb-surface.c
 
1
/* cairo - a vector graphics library with display and print output
 
2
 *
 
3
 * Copyright © 2003 University of Southern California
 
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 University of Southern
 
31
 * California.
 
32
 *
 
33
 * Contributor(s):
 
34
 *    Michael Emmel <mike.emmel@gmail.com>
 
35
 *    Claudio Ciccani <klan@users.sf.net>
 
36
 */
 
37
 
 
38
 
 
39
#include "cairoint.h"
 
40
#include "cairo-directfb.h"
 
41
 
 
42
#include <stdlib.h>
 
43
 
 
44
#include <directfb.h>
 
45
#include <direct/types.h>
 
46
#include <direct/debug.h>
 
47
#include <direct/memcpy.h>
 
48
#include <direct/util.h>
 
49
 
 
50
 
 
51
/*
 
52
 * Rectangle works fine.
 
53
 * Bugs 361377, 359553, 359243 in Gnome BTS are caused
 
54
 * by GDK/DirectFB, not by Cairo/DirectFB.
 
55
 */
 
56
#define DFB_RECTANGLES 1
 
57
 
 
58
/*
 
59
 * Composite works fine.
 
60
 */
 
61
#define DFB_COMPOSITE 1 
 
62
 
 
63
/*
 
64
 * CompositeTrapezoids works (without antialiasing).
 
65
 */
 
66
#define DFB_COMPOSITE_TRAPEZOIDS 0
 
67
 
 
68
/*
 
69
 * ShowGlyphs works fine.
 
70
 */
 
71
#define DFB_SHOW_GLYPHS 1
 
72
 
 
73
 
 
74
D_DEBUG_DOMAIN (Cairo_DirectFB, "Cairo/DirectFB", "Cairo DirectFB backend");
 
75
 
 
76
/*****************************************************************************/
 
77
 
 
78
 
 
79
typedef struct _cairo_directfb_surface {
 
80
    cairo_surface_t      base;
 
81
    cairo_format_t       format;
 
82
    cairo_content_t      content;
 
83
    
 
84
    IDirectFB           *dfb;
 
85
    IDirectFBSurface    *dfbsurface;
 
86
    IDirectFBSurface    *tmpsurface;
 
87
    
 
88
    /* color buffer */
 
89
    cairo_surface_t     *color;
 
90
        
 
91
    DFBRegion           *clips;
 
92
    int                  n_clips;
 
93
    
 
94
    int                  width;
 
95
    int                  height;
 
96
    
 
97
    cairo_bool_t         local;
 
98
} cairo_directfb_surface_t;
 
99
 
 
100
 
 
101
typedef struct _cairo_directfb_font_cache {
 
102
    IDirectFB           *dfb; 
 
103
    IDirectFBSurface    *dfbsurface;
 
104
 
 
105
    int                  width;
 
106
    int                  height;
 
107
 
 
108
    /* coordinates within the surface 
 
109
     * of the last loaded glyph */
 
110
    int                  x;
 
111
    int                  y;
 
112
} cairo_directfb_font_cache_t;
 
113
    
 
114
 
 
115
static cairo_surface_backend_t cairo_directfb_surface_backend;
 
116
 
 
117
/*****************************************************************************/
 
118
 
 
119
static int _directfb_argb_font = 0;
 
120
 
 
121
/*****************************************************************************/
 
122
 
 
123
 
 
124
#define RUN_CLIPPED( surface, clip, func ) {\
 
125
    if ((surface)->clips) {\
 
126
        int k;\
 
127
        for (k = 0; k < (surface)->n_clips; k++) {\
 
128
            if (clip) {\
 
129
                DFBRegion  reg = (surface)->clips[k];\
 
130
                DFBRegion *cli = (clip);\
 
131
                if (reg.x2 < cli->x1 || reg.y2 < cli->y1 ||\
 
132
                    reg.x1 > cli->x2 || reg.y1 > cli->y2)\
 
133
                    continue;\
 
134
                if (reg.x1 < cli->x1)\
 
135
                    reg.x1 = cli->x1;\
 
136
                if (reg.y1 < cli->y1)\
 
137
                    reg.y1 = cli->y1;\
 
138
                if (reg.x2 > cli->x2)\
 
139
                    reg.x2 = cli->x2;\
 
140
                if (reg.y2 > cli->y2)\
 
141
                    reg.y2 = cli->y2;\
 
142
                (surface)->dfbsurface->SetClip ((surface)->dfbsurface, &reg);\
 
143
            }\
 
144
            else {\
 
145
                (surface)->dfbsurface->SetClip ((surface)->dfbsurface,\
 
146
                                           &(surface)->clips[k]);\
 
147
            }\
 
148
            func;\
 
149
        }\
 
150
    }\
 
151
    else {\
 
152
        (surface)->dfbsurface->SetClip ((surface)->dfbsurface, clip);\
 
153
        func;\
 
154
    }\
 
155
}
 
156
 
 
157
#define TRANSFORM_POINT2X( m, x, y, ret_x, ret_y ) {\
 
158
    double _x = (x);\
 
159
    double _y = (y);\
 
160
    (ret_x) = (_x * (m).xx + (m).x0);\
 
161
    (ret_y) = (_y * (m).yy + (m).y0);\
 
162
}
 
163
 
 
164
#define TRANSFORM_POINT3X( m, x, y, ret_x, ret_y ) {\
 
165
    double _x = (x);\
 
166
    double _y = (y);\
 
167
    (ret_x) = (_x * (m).xx + _y * (m).xy + (m).x0);\
 
168
    (ret_y) = (_x * (m).yx + _y * (m).yy + (m).y0);\
 
169
}
 
170
 
 
171
/* XXX: A1 has a different bits ordering in cairo.
 
172
 *      Probably we should drop it.
 
173
 */
 
174
 
 
175
static cairo_content_t 
 
176
_directfb_format_to_content (DFBSurfacePixelFormat format)
 
177
{
 
178
    if (DFB_PIXELFORMAT_HAS_ALPHA(format)) {
 
179
        if (DFB_COLOR_BITS_PER_PIXEL(format))
 
180
            return CAIRO_CONTENT_COLOR_ALPHA;
 
181
            
 
182
        return CAIRO_CONTENT_ALPHA;
 
183
    }
 
184
    
 
185
    return CAIRO_CONTENT_COLOR;
 
186
}
 
187
 
 
188
                                                           
 
189
static inline DFBSurfacePixelFormat 
 
190
_cairo_to_directfb_format (cairo_format_t format)
 
191
{
 
192
    switch (format) {
 
193
        case CAIRO_FORMAT_RGB24:
 
194
            return DSPF_RGB32;
 
195
        case CAIRO_FORMAT_ARGB32:
 
196
            return DSPF_ARGB; 
 
197
        case CAIRO_FORMAT_A8:
 
198
            return DSPF_A8; 
 
199
        case CAIRO_FORMAT_A1:
 
200
            return DSPF_A1; 
 
201
        default:
 
202
            break;
 
203
    }
 
204
    
 
205
    return -1;
 
206
}
 
207
 
 
208
static inline cairo_format_t
 
209
_directfb_to_cairo_format (DFBSurfacePixelFormat format)
 
210
{
 
211
    switch (format) {
 
212
        case DSPF_RGB32:
 
213
            return CAIRO_FORMAT_RGB24;
 
214
        case DSPF_ARGB:
 
215
            return CAIRO_FORMAT_ARGB32;
 
216
        case DSPF_A8:
 
217
            return CAIRO_FORMAT_A8;
 
218
        case DSPF_A1:
 
219
            return CAIRO_FORMAT_A1;
 
220
        default:
 
221
            break;
 
222
    }
 
223
    
 
224
    return -1;
 
225
}
 
226
 
 
227
 
 
228
static cairo_status_t
 
229
_directfb_get_operator (cairo_operator_t         operator,
 
230
                        DFBSurfaceBlendFunction *ret_srcblend,
 
231
                        DFBSurfaceBlendFunction *ret_dstblend )
 
232
{
 
233
    DFBSurfaceBlendFunction srcblend = DSBF_ONE;
 
234
    DFBSurfaceBlendFunction dstblend = DSBF_ZERO;
 
235
    
 
236
    switch (operator) {
 
237
        case CAIRO_OPERATOR_CLEAR:
 
238
            srcblend = DSBF_ZERO;
 
239
            dstblend = DSBF_ZERO;
 
240
            break;
 
241
        case CAIRO_OPERATOR_SOURCE:
 
242
            srcblend = DSBF_ONE;
 
243
            dstblend = DSBF_ZERO;
 
244
            break;
 
245
        case CAIRO_OPERATOR_OVER:
 
246
            srcblend = DSBF_ONE;
 
247
            dstblend = DSBF_INVSRCALPHA;
 
248
            break;
 
249
        case CAIRO_OPERATOR_IN:
 
250
            srcblend = DSBF_DESTALPHA;
 
251
            dstblend = DSBF_ZERO;
 
252
            break;
 
253
        case CAIRO_OPERATOR_OUT:
 
254
            srcblend = DSBF_INVDESTALPHA;
 
255
            dstblend = DSBF_ZERO;
 
256
            break;
 
257
        case CAIRO_OPERATOR_ATOP:
 
258
            srcblend = DSBF_DESTALPHA;
 
259
            dstblend = DSBF_INVSRCALPHA;
 
260
            break;
 
261
        case CAIRO_OPERATOR_DEST:
 
262
            srcblend = DSBF_ZERO;
 
263
            dstblend = DSBF_ONE;
 
264
            break;
 
265
        case CAIRO_OPERATOR_DEST_OVER:
 
266
            srcblend = DSBF_INVDESTALPHA;
 
267
            dstblend = DSBF_ONE;
 
268
            break;
 
269
        case CAIRO_OPERATOR_DEST_IN:
 
270
            srcblend = DSBF_ZERO;
 
271
            dstblend = DSBF_SRCALPHA;
 
272
            break;
 
273
        case CAIRO_OPERATOR_DEST_OUT:
 
274
            srcblend = DSBF_ZERO;
 
275
            dstblend = DSBF_INVSRCALPHA;
 
276
            break;
 
277
        case CAIRO_OPERATOR_DEST_ATOP:
 
278
            srcblend = DSBF_INVDESTALPHA;
 
279
            dstblend = DSBF_SRCALPHA;
 
280
            break;                        
 
281
        case CAIRO_OPERATOR_XOR:
 
282
            srcblend = DSBF_INVDESTALPHA;
 
283
            dstblend = DSBF_INVSRCALPHA;
 
284
            break;
 
285
        case CAIRO_OPERATOR_ADD:
 
286
            srcblend = DSBF_ONE;
 
287
            dstblend = DSBF_ONE;
 
288
            break;
 
289
        case CAIRO_OPERATOR_SATURATE:
 
290
            srcblend = DSBF_SRCALPHASAT;
 
291
            dstblend = DSBF_ONE;
 
292
            break;
 
293
        default:
 
294
            return CAIRO_INT_STATUS_UNSUPPORTED;
 
295
    }
 
296
 
 
297
    if (ret_srcblend)
 
298
        *ret_srcblend = srcblend;
 
299
    if (ret_dstblend)
 
300
        *ret_dstblend = dstblend;
 
301
    
 
302
    return CAIRO_STATUS_SUCCESS;
 
303
}
 
304
 
 
305
static IDirectFBSurface*
 
306
_directfb_buffer_surface_create (IDirectFB             *dfb, 
 
307
                                 DFBSurfacePixelFormat  format,
 
308
                                 int                    width,
 
309
                                 int                    height)
 
310
{
 
311
    IDirectFBSurface      *buffer;
 
312
    DFBSurfaceDescription  dsc;
 
313
    DFBResult              ret;
 
314
    
 
315
    dsc.flags       = DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT;
 
316
    dsc.width       = width;
 
317
    dsc.height      = height;
 
318
    dsc.pixelformat = format;
 
319
 
 
320
    ret = dfb->CreateSurface (dfb, &dsc, &buffer);
 
321
    if (ret) {
 
322
        DirectFBError ("IDirectFB::CreateSurface()", ret);
 
323
        return NULL;
 
324
    }
 
325
    
 
326
    return buffer;
 
327
}
 
328
 
 
329
static cairo_status_t
 
330
_directfb_acquire_surface (cairo_directfb_surface_t  *surface, 
 
331
                           cairo_rectangle_int_t     *intrest_rec,
 
332
                           cairo_image_surface_t    **image_out,
 
333
                           cairo_rectangle_int_t     *image_rect_out,
 
334
                           void                     **image_extra,
 
335
                           DFBSurfaceLockFlags        lock_flags)
 
336
{   
 
337
    IDirectFBSurface *buffer = NULL;
 
338
    DFBRectangle source_rect;
 
339
    cairo_format_t cairo_format;
 
340
    void *data;
 
341
    int   pitch; 
 
342
        
 
343
    if (surface->format == (cairo_format_t) -1) {
 
344
        DFBSurfaceCapabilities caps;
 
345
        
 
346
        if (intrest_rec) {
 
347
            source_rect.x = intrest_rec->x;
 
348
            source_rect.y = intrest_rec->y;
 
349
            source_rect.w = intrest_rec->width; 
 
350
            source_rect.h = intrest_rec->height; 
 
351
        } else {
 
352
            source_rect.x = 0;
 
353
            source_rect.y = 0;
 
354
            surface->dfbsurface->GetSize (surface->dfbsurface,
 
355
                                          &source_rect.w, &source_rect.h);   
 
356
        }
 
357
 
 
358
        if (surface->tmpsurface) {
 
359
            int w, h;
 
360
            surface->tmpsurface->GetSize (surface->tmpsurface, &w, &h);
 
361
            if (w < source_rect.w || h < source_rect.h) {
 
362
                surface->tmpsurface->Release (surface->tmpsurface);
 
363
                surface->tmpsurface = NULL;
 
364
            }
 
365
        }
 
366
        
 
367
        cairo_format = _cairo_format_from_content (surface->content);
 
368
        if (!surface->tmpsurface) {
 
369
            D_DEBUG_AT (Cairo_DirectFB, "Allocating buffer for surface %p.\n", surface);
 
370
       
 
371
            surface->tmpsurface = 
 
372
                _directfb_buffer_surface_create (surface->dfb, 
 
373
                                                 _cairo_to_directfb_format (cairo_format),
 
374
                                                 source_rect.w, source_rect.h);
 
375
            if (!surface->tmpsurface)
 
376
                goto ERROR;
 
377
        }
 
378
        buffer = surface->tmpsurface;
 
379
        
 
380
        surface->dfbsurface->GetCapabilities (surface->dfbsurface, &caps);
 
381
        if (caps & DSCAPS_FLIPPING) {
 
382
            DFBRegion region = { .x1 = source_rect.x, .y1 = source_rect.y, 
 
383
                                 .x2 = source_rect.x + source_rect.w - 1,
 
384
                                 .y2 = source_rect.y + source_rect.h - 1 };
 
385
            surface->dfbsurface->Flip (surface->dfbsurface, &region, DSFLIP_BLIT);
 
386
        } 
 
387
        buffer->Blit (buffer, surface->dfbsurface, &source_rect, 0, 0);
 
388
    }
 
389
    else {
 
390
        /*might be a subsurface get the offset*/
 
391
        surface->dfbsurface->GetVisibleRectangle (surface->dfbsurface, &source_rect);
 
392
        cairo_format = surface->format;
 
393
        buffer = surface->dfbsurface;     
 
394
    }
 
395
    
 
396
    *image_extra = buffer;
 
397
    
 
398
    if (buffer->Lock (buffer, lock_flags, &data, &pitch)) {
 
399
        D_DEBUG_AT (Cairo_DirectFB, "Couldn't lock surface!\n");
 
400
        goto ERROR;
 
401
    }
 
402
            
 
403
    *image_out = (cairo_image_surface_t *)
 
404
                    cairo_image_surface_create_for_data (data, cairo_format,
 
405
                                            source_rect.w, source_rect.h, pitch);
 
406
    if (*image_out == NULL) 
 
407
        goto ERROR;
 
408
 
 
409
    if (image_rect_out) {
 
410
        image_rect_out->x = source_rect.x;
 
411
        image_rect_out->y = source_rect.y;
 
412
        image_rect_out->width = source_rect.w;
 
413
        image_rect_out->height = source_rect.h;
 
414
    } else {
 
415
        /* lock for read */
 
416
        cairo_surface_t *sur = &((*image_out)->base); 
 
417
        /* might be a subsurface */
 
418
        if (buffer == surface->dfbsurface)
 
419
            cairo_surface_set_device_offset (sur, source_rect.x, source_rect.y);
 
420
    }
 
421
   
 
422
    return CAIRO_STATUS_SUCCESS;
 
423
 
 
424
ERROR:
 
425
    *image_extra = NULL;
 
426
    if (buffer) {
 
427
        buffer->Unlock (buffer);
 
428
        if (buffer != surface->dfbsurface) 
 
429
            buffer->Release (buffer);
 
430
    }
 
431
    return _cairo_error (CAIRO_STATUS_NO_MEMORY);
 
432
}
 
433
 
 
434
 
 
435
 
 
436
static cairo_surface_t *
 
437
_cairo_directfb_surface_create_similar (void            *abstract_src,
 
438
                                        cairo_content_t  content,
 
439
                                        int              width,
 
440
                                        int              height)
 
441
{
 
442
    cairo_directfb_surface_t *source  = abstract_src;
 
443
    cairo_directfb_surface_t *surface;
 
444
    cairo_format_t            format;
 
445
    
 
446
    D_DEBUG_AT (Cairo_DirectFB, 
 
447
                "%s( src=%p, content=0x%x, width=%d, height=%d).\n",
 
448
                __FUNCTION__, source, content, width, height);
 
449
    
 
450
    width = (width <= 0) ? 1 : width;
 
451
    height = (height<= 0) ? 1 : height;
 
452
 
 
453
    format = _cairo_format_from_content (content);             
 
454
    surface = calloc (1, sizeof(cairo_directfb_surface_t));
 
455
    if (!surface) {
 
456
        _cairo_error_throw (CAIRO_STATUS_NO_MEMORY);
 
457
        return NULL;
 
458
    }
 
459
   
 
460
    surface->dfb = source->dfb;
 
461
    
 
462
    if (width < 8 || height < 8) {
 
463
        IDirectFBSurface *tmp;
 
464
        /* Some cards (e.g. Matrox) don't support surfaces smaller than 8x8 */
 
465
        tmp =  _directfb_buffer_surface_create (surface->dfb, 
 
466
                                        _cairo_to_directfb_format (format),
 
467
                                        MAX (width, 8), MAX (height, 8));
 
468
        if (tmp) {
 
469
            DFBRectangle rect = { .x=0, .y=0, .w=width, .h=height };
 
470
            tmp->GetSubSurface (tmp, &rect, &surface->dfbsurface);
 
471
            tmp->Release (tmp);
 
472
        }
 
473
    }
 
474
    else {
 
475
        surface->dfbsurface = _directfb_buffer_surface_create (surface->dfb,
 
476
                                    _cairo_to_directfb_format (format), width, height);
 
477
    }
 
478
    
 
479
    if (!surface->dfbsurface) {
 
480
        D_ASSERT (surface->dfbsurface != NULL);
 
481
        free (surface);
 
482
        return NULL;
 
483
    }
 
484
    
 
485
    _cairo_surface_init (&surface->base, &cairo_directfb_surface_backend, content);
 
486
    surface->format  = format;
 
487
    surface->content = content;
 
488
    surface->width   = width;
 
489
    surface->height  = height;
 
490
    surface->local   = true;
 
491
    
 
492
    return &surface->base;
 
493
}
 
494
 
 
495
static cairo_status_t
 
496
_cairo_directfb_surface_finish (void *data)
 
497
{
 
498
    cairo_directfb_surface_t *surface = (cairo_directfb_surface_t *)data;
 
499
    
 
500
    D_DEBUG_AT (Cairo_DirectFB, 
 
501
                "%s( surface=%p ).\n", __FUNCTION__, surface);
 
502
        
 
503
    if (surface->clips) {
 
504
        free (surface->clips);
 
505
        surface->clips   = NULL;
 
506
        surface->n_clips = 0;
 
507
    }
 
508
    
 
509
    if (surface->color) {
 
510
        cairo_surface_destroy (surface->color);
 
511
        surface->color = NULL;
 
512
    }
 
513
    
 
514
    if (surface->tmpsurface) {
 
515
        surface->tmpsurface->Release (surface->tmpsurface);
 
516
        surface->tmpsurface = NULL;
 
517
    }
 
518
 
 
519
    if (surface->dfbsurface) {
 
520
        surface->dfbsurface->Release (surface->dfbsurface);
 
521
        surface->dfbsurface = NULL;
 
522
    }
 
523
    
 
524
    if (surface->dfb)
 
525
        surface->dfb = NULL;
 
526
        
 
527
    return CAIRO_STATUS_SUCCESS;
 
528
}
 
529
 
 
530
static cairo_status_t
 
531
_cairo_directfb_surface_acquire_source_image (void                   *abstract_surface,
 
532
                                              cairo_image_surface_t **image_out,
 
533
                                              void                  **image_extra)
 
534
{
 
535
    cairo_directfb_surface_t *surface = abstract_surface;
 
536
    
 
537
    D_DEBUG_AT (Cairo_DirectFB, 
 
538
                "%s( surface=%p ).\n", __FUNCTION__, surface);
 
539
    
 
540
    return _directfb_acquire_surface (surface, NULL, image_out, 
 
541
                                      NULL, image_extra, DSLF_READ);
 
542
}
 
543
 
 
544
static void
 
545
_cairo_directfb_surface_release_source_image (void                  *abstract_surface,
 
546
                                              cairo_image_surface_t *image,
 
547
                                              void                  *image_extra)
 
548
{
 
549
    cairo_directfb_surface_t *surface = abstract_surface;
 
550
    IDirectFBSurface *buffer = image_extra;
 
551
    
 
552
    D_DEBUG_AT (Cairo_DirectFB, 
 
553
                "%s( surface=%p ).\n", __FUNCTION__, surface);
 
554
    
 
555
    buffer->Unlock (buffer);
 
556
    
 
557
    cairo_surface_destroy (&image->base);
 
558
}
 
559
 
 
560
static cairo_status_t
 
561
_cairo_directfb_surface_acquire_dest_image (void                     *abstract_surface,
 
562
                                            cairo_rectangle_int_t    *interest_rect,
 
563
                                            cairo_image_surface_t   **image_out,
 
564
                                            cairo_rectangle_int_t    *image_rect_out,
 
565
                                            void                    **image_extra)
 
566
{
 
567
    cairo_directfb_surface_t *surface = abstract_surface;
 
568
    
 
569
    D_DEBUG_AT (Cairo_DirectFB, 
 
570
                "%s( surface=%p, interest_rect={ %d %d %d %d } ).\n", 
 
571
                __FUNCTION__, surface, 
 
572
                interest_rect ? interest_rect->x : 0,
 
573
                interest_rect ? interest_rect->y : 0,
 
574
                interest_rect ? interest_rect->width : surface->width,
 
575
                interest_rect ? interest_rect->height : surface->height);
 
576
    
 
577
    return _directfb_acquire_surface (surface, interest_rect, image_out, 
 
578
                                      image_rect_out, image_extra, DSLF_READ | DSLF_WRITE);
 
579
}
 
580
 
 
581
static void
 
582
_cairo_directfb_surface_release_dest_image (void                  *abstract_surface,
 
583
                                            cairo_rectangle_int_t *interest_rect,
 
584
                                            cairo_image_surface_t *image,
 
585
                                            cairo_rectangle_int_t *image_rect,
 
586
                                            void                  *image_extra)
 
587
{
 
588
    cairo_directfb_surface_t *surface = abstract_surface;
 
589
    IDirectFBSurface *buffer = image_extra; 
 
590
    
 
591
    D_DEBUG_AT (Cairo_DirectFB, 
 
592
                "%s( surface=%p ).\n", __FUNCTION__, surface);
 
593
    
 
594
    buffer->Unlock (buffer);
 
595
 
 
596
    if (surface->dfbsurface != buffer) {
 
597
        DFBRegion region = { .x1 = interest_rect->x, .y1 = interest_rect->y,
 
598
                             .x2 = interest_rect->x+interest_rect->width-1,
 
599
                             .y2 = interest_rect->y+interest_rect->height-1 };
 
600
        surface->dfbsurface->SetClip (surface->dfbsurface, &region);
 
601
        surface->dfbsurface->SetBlittingFlags (surface->dfbsurface, DSBLIT_NOFX);
 
602
        surface->dfbsurface->Blit (surface->dfbsurface, buffer,
 
603
                                   NULL, image_rect->x, image_rect->y);
 
604
    }
 
605
    
 
606
    cairo_surface_destroy (&image->base);
 
607
}
 
608
 
 
609
static cairo_status_t
 
610
_cairo_directfb_surface_clone_similar (void             *abstract_surface,
 
611
                                       cairo_surface_t  *src,
 
612
                                       int               src_x,
 
613
                                       int               src_y,
 
614
                                       int               width,
 
615
                                       int               height,
 
616
                                       cairo_surface_t **clone_out)
 
617
{
 
618
    cairo_directfb_surface_t *surface = abstract_surface;
 
619
    cairo_directfb_surface_t *clone;
 
620
    
 
621
    D_DEBUG_AT (Cairo_DirectFB, 
 
622
                "%s( surface=%p, src=%p ).\n", __FUNCTION__, surface, src);
 
623
 
 
624
    if (src->backend == surface->base.backend) {
 
625
        cairo_surface_reference (src);
 
626
        *clone_out = src;
 
627
         
 
628
        return CAIRO_STATUS_SUCCESS;
 
629
    }
 
630
    else if (_cairo_surface_is_image (src)) {
 
631
        cairo_image_surface_t *image_src = (cairo_image_surface_t *) src;
 
632
        unsigned char         *dst, *src = image_src->data;
 
633
        int                    pitch;
 
634
        int                    i, j;
 
635
        DFBResult              ret;
 
636
        
 
637
        clone = (cairo_directfb_surface_t *)
 
638
                _cairo_directfb_surface_create_similar (surface, 
 
639
                            _cairo_content_from_format (image_src->format),
 
640
                            image_src->width, image_src->height);
 
641
        if (!clone)
 
642
            return _cairo_error (CAIRO_STATUS_NO_MEMORY);
 
643
            
 
644
        ret = clone->dfbsurface->Lock (clone->dfbsurface, 
 
645
                                   DSLF_WRITE, (void *)&dst, &pitch);
 
646
        if (ret) {
 
647
            DirectFBError ("IDirectFBSurface::Lock()", ret);
 
648
            cairo_surface_destroy ((cairo_surface_t *)clone);
 
649
            return _cairo_error (CAIRO_STATUS_NO_MEMORY);
 
650
        }
 
651
 
 
652
        dst += pitch * src_y;
 
653
        src += image_src->stride * src_y;
 
654
        
 
655
        if (image_src->format == CAIRO_FORMAT_A1) {
 
656
            /* A1 -> A8 */
 
657
            for (i = 0; i < height; i++) {
 
658
                for (j = src_x; j < src_x + width; j++)
 
659
                    dst[j] = (src[j>>3] & (1 << (j&7))) ? 0xff : 0x00;
 
660
                dst += pitch;
 
661
                src += image_src->stride;
 
662
            }
 
663
        }
 
664
        else {
 
665
            int len;
 
666
            
 
667
            if (image_src->format == CAIRO_FORMAT_A8) {
 
668
                dst += src_x;
 
669
                src += src_x;
 
670
                len  = width;
 
671
            } else {
 
672
                dst += src_x * 4;
 
673
                src += src_x * 4;
 
674
                len  = width * 4;
 
675
            }
 
676
            
 
677
            for (i = 0; i < height; i++) {
 
678
                direct_memcpy (dst+src_x, src+src_x, len);
 
679
                dst += pitch;
 
680
                src += image_src->stride;
 
681
            }
 
682
        }
 
683
        
 
684
        clone->dfbsurface->Unlock (clone->dfbsurface);
 
685
        
 
686
        *clone_out = &clone->base;
 
687
                
 
688
        return CAIRO_STATUS_SUCCESS;
 
689
    }
 
690
    
 
691
    return CAIRO_INT_STATUS_UNSUPPORTED;
 
692
}
 
693
 
 
694
#if DFB_COMPOSITE || DFB_COMPOSITE_TRAPEZOIDS
 
695
static cairo_int_status_t
 
696
_directfb_prepare_composite (cairo_directfb_surface_t    *dst,
 
697
                             cairo_pattern_t             *src_pattern,
 
698
                             cairo_pattern_t             *mask_pattern,
 
699
                             cairo_operator_t             op,
 
700
                             int *src_x,             int *src_y,
 
701
                             int *mask_x,            int *mask_y,
 
702
                             unsigned int                 width,
 
703
                             unsigned int                 height,                        
 
704
                             cairo_directfb_surface_t   **ret_src,
 
705
                             cairo_surface_attributes_t  *ret_src_attr)
 
706
{
 
707
    cairo_directfb_surface_t   *src;
 
708
    cairo_surface_attributes_t  src_attr;
 
709
    cairo_status_t              ret;
 
710
    DFBSurfaceBlittingFlags     flags;
 
711
    DFBSurfaceBlendFunction     sblend;
 
712
    DFBSurfaceBlendFunction     dblend;
 
713
    DFBColor                    color;
 
714
    
 
715
    if (_directfb_get_operator (op, &sblend, &dblend))
 
716
        return CAIRO_INT_STATUS_UNSUPPORTED;
 
717
     
 
718
    if (mask_pattern) {
 
719
        cairo_solid_pattern_t *pattern;
 
720
        
 
721
        if (mask_pattern->type != CAIRO_PATTERN_TYPE_SOLID) {
 
722
            cairo_pattern_t *tmp;
 
723
            int              tmp_x, tmp_y;
 
724
            
 
725
            if (src_pattern->type != CAIRO_PATTERN_TYPE_SOLID ||
 
726
                sblend == DSBF_INVDESTALPHA) /* Doesn't work correctly */
 
727
                return CAIRO_INT_STATUS_UNSUPPORTED;
 
728
                
 
729
            D_DEBUG_AT (Cairo_DirectFB, "Replacing src pattern by mask pattern.\n");
 
730
                
 
731
            tmp = src_pattern;
 
732
            tmp_x = *src_x; tmp_y = *src_y;
 
733
            
 
734
            src_pattern = mask_pattern;
 
735
            *src_x = *mask_x; *src_y = *mask_y;
 
736
            
 
737
            mask_pattern = tmp;
 
738
            *mask_x = tmp_x; *mask_y = tmp_y;
 
739
            
 
740
            if (sblend == DSBF_ONE) {                  
 
741
                sblend = DSBF_SRCALPHA;
 
742
                /*dblend = DSBF_INVSRCALPHA;*/
 
743
            }
 
744
        }
 
745
            
 
746
        pattern = (cairo_solid_pattern_t *)mask_pattern;
 
747
        color.a = pattern->color.alpha_short >> 8;
 
748
        color.r = pattern->color.red_short   >> 8;
 
749
        color.g = pattern->color.green_short >> 8;
 
750
        color.b = pattern->color.blue_short  >> 8;
 
751
    } 
 
752
    else {
 
753
        color.a = color.r = color.g = color.b = 0xff;
 
754
    }
 
755
        
 
756
    if (src_pattern->type == CAIRO_PATTERN_TYPE_SOLID) {
 
757
        cairo_solid_pattern_t *pattern = (cairo_solid_pattern_t *)src_pattern;
 
758
         
 
759
        if (!dst->color) {
 
760
            dst->color = _cairo_directfb_surface_create_similar (dst,
 
761
                                                CAIRO_CONTENT_COLOR_ALPHA, 1, 1);
 
762
            if (!dst->color)
 
763
                return _cairo_error (CAIRO_STATUS_NO_MEMORY);
 
764
        }
 
765
        
 
766
        src = (cairo_directfb_surface_t *)dst->color;
 
767
        src->dfbsurface->Clear (src->dfbsurface,
 
768
                                pattern->color.red_short   >> 8,
 
769
                                pattern->color.green_short >> 8,
 
770
                                pattern->color.blue_short  >> 8,
 
771
                                pattern->color.alpha_short >> 8);
 
772
                                  
 
773
        src_attr.matrix   = src_pattern->matrix;
 
774
        src_attr.extend   = CAIRO_EXTEND_NONE;
 
775
        src_attr.filter   = CAIRO_FILTER_NEAREST;
 
776
        src_attr.x_offset =
 
777
        src_attr.y_offset = 0;
 
778
    }
 
779
    else {
 
780
        ret = _cairo_pattern_acquire_surface (src_pattern, &dst->base,
 
781
                                              *src_x, *src_y, width, height,
 
782
                                              (cairo_surface_t **)&src, &src_attr);
 
783
        if (ret)
 
784
            return ret;
 
785
    }
 
786
    
 
787
    if (src->content == CAIRO_CONTENT_COLOR) {
 
788
        if (sblend == DSBF_SRCALPHA)
 
789
            sblend = DSBF_ONE;
 
790
        else if (sblend == DSBF_INVSRCALPHA)
 
791
            sblend = DSBF_ZERO;
 
792
            
 
793
        if (dblend == DSBF_SRCALPHA)
 
794
            dblend = DSBF_ONE;
 
795
        else if (dblend == DSBF_INVSRCALPHA)
 
796
            dblend = DSBF_ZERO;
 
797
    }
 
798
    if (dst->content == CAIRO_CONTENT_COLOR) {
 
799
        if (sblend == DSBF_DESTALPHA)
 
800
            sblend = DSBF_ONE;
 
801
        else if (sblend == DSBF_INVDESTALPHA)
 
802
            sblend = DSBF_ZERO;
 
803
         
 
804
        if (dblend == DSBF_DESTALPHA)
 
805
            dblend = DSBF_ONE;
 
806
        else if (dblend == DSBF_INVDESTALPHA)
 
807
            dblend = DSBF_ZERO;   
 
808
    }
 
809
 
 
810
    flags = (sblend == DSBF_ONE && dblend == DSBF_ZERO) 
 
811
            ? DSBLIT_NOFX : DSBLIT_BLEND_ALPHACHANNEL; 
 
812
    if (color.a != 0xff)
 
813
        flags |= DSBLIT_BLEND_COLORALPHA;
 
814
    if (color.r != 0xff || color.g != 0xff || color.b != 0xff)
 
815
        flags |= DSBLIT_COLORIZE;
 
816
            
 
817
    dst->dfbsurface->SetBlittingFlags (dst->dfbsurface, flags);
 
818
    
 
819
    if (flags & (DSBLIT_BLEND_ALPHACHANNEL | DSBLIT_BLEND_COLORALPHA)) {
 
820
        dst->dfbsurface->SetSrcBlendFunction (dst->dfbsurface, sblend);
 
821
        dst->dfbsurface->SetDstBlendFunction (dst->dfbsurface, dblend);
 
822
    }
 
823
    
 
824
    if (flags & (DSBLIT_BLEND_COLORALPHA | DSBLIT_COLORIZE))    
 
825
        dst->dfbsurface->SetColor (dst->dfbsurface, color.r, color.g, color.b, color.a); 
 
826
        
 
827
    *ret_src = src;
 
828
    *ret_src_attr = src_attr;
 
829
    
 
830
    return CAIRO_STATUS_SUCCESS;
 
831
}
 
832
 
 
833
static void
 
834
_directfb_finish_composite (cairo_directfb_surface_t   *dst,
 
835
                            cairo_pattern_t            *src_pattern,
 
836
                            cairo_surface_t            *src,
 
837
                            cairo_surface_attributes_t *src_attr)
 
838
{
 
839
    if (src != dst->color)
 
840
         _cairo_pattern_release_surface (src_pattern, src, src_attr);
 
841
}
 
842
#endif /* DFB_COMPOSITE || DFB_COMPOSITE_TRAPEZOIDS */        
 
843
 
 
844
#if DFB_COMPOSITE
 
845
static DFBAccelerationMask
 
846
_directfb_categorize_operation (cairo_surface_attributes_t *src_attr)
 
847
{
 
848
    cairo_matrix_t *m = &src_attr->matrix;
 
849
    
 
850
    if (m->xy != 0 || m->yx != 0 || m->xx < 0 || m->yy < 0) {
 
851
        if (src_attr->extend != CAIRO_EXTEND_NONE)
 
852
            return DFXL_NONE;
 
853
        return DFXL_TEXTRIANGLES;
 
854
    }
 
855
        
 
856
    if (m->xx != 1 || m->yy != 1) {
 
857
        if (src_attr->extend != CAIRO_EXTEND_NONE)
 
858
            return DFXL_NONE;
 
859
        return DFXL_STRETCHBLIT;
 
860
    }
 
861
     
 
862
    if (src_attr->extend != CAIRO_EXTEND_NONE &&
 
863
        src_attr->extend != CAIRO_EXTEND_REPEAT)
 
864
        return DFXL_NONE;
 
865
           
 
866
    return DFXL_BLIT;
 
867
}
 
868
 
 
869
static cairo_int_status_t
 
870
_cairo_directfb_surface_composite (cairo_operator_t  op,
 
871
                                   cairo_pattern_t  *src_pattern,
 
872
                                   cairo_pattern_t  *mask_pattern,
 
873
                                   void             *abstract_dst,
 
874
                                   int  src_x,  int  src_y,
 
875
                                   int  mask_x, int  mask_y,
 
876
                                   int  dst_x,  int  dst_y,
 
877
                                   unsigned int      width,
 
878
                                   unsigned int      height)
 
879
{
 
880
    cairo_directfb_surface_t   *dst = abstract_dst;
 
881
    cairo_directfb_surface_t   *src;
 
882
    cairo_surface_attributes_t  src_attr;
 
883
    DFBAccelerationMask         accel, mask;
 
884
    cairo_int_status_t          ret;
 
885
    
 
886
    D_DEBUG_AT (Cairo_DirectFB,
 
887
                "%s( op=%d, src_pattern=%p, mask_pattern=%p, dst=%p,"
 
888
                   " src_x=%d, src_y=%d, mask_x=%d, mask_y=%d, dst_x=%d,"
 
889
                   " dst_y=%d, width=%u, height=%u ).\n",
 
890
                __FUNCTION__, op, src_pattern, mask_pattern, dst, 
 
891
                src_x, src_y, mask_x, mask_y, dst_x, dst_y, width, height);
 
892
    
 
893
    ret = _directfb_prepare_composite (dst, src_pattern, mask_pattern, op,
 
894
                                       &src_x, &src_y, &mask_x, &mask_y, 
 
895
                                       width, height, &src, &src_attr);
 
896
    if (ret)
 
897
        return ret;
 
898
        
 
899
    accel = _directfb_categorize_operation (&src_attr);
 
900
    
 
901
    dst->dfbsurface->GetAccelerationMask (dst->dfbsurface, src->dfbsurface, &mask);
 
902
    if (!(mask & accel)) {
 
903
        D_DEBUG_AT (Cairo_DirectFB, "No acceleration (%08x)!\n", accel);
 
904
        if (accel != DFXL_BLIT) {
 
905
            _directfb_finish_composite (dst, src_pattern, &src->base, &src_attr);
 
906
            return CAIRO_INT_STATUS_UNSUPPORTED;
 
907
        }
 
908
    }
 
909
    
 
910
    src_x += src_attr.x_offset;
 
911
    src_y += src_attr.y_offset;
 
912
    
 
913
    switch (accel) {
 
914
        case DFXL_BLIT: {
 
915
            DFBRectangle sr;
 
916
        
 
917
            sr.x = src_x + _cairo_lround (src_attr.matrix.x0);
 
918
            sr.y = src_y + _cairo_lround (src_attr.matrix.y0);
 
919
            sr.w = width;
 
920
            sr.h = height;
 
921
        
 
922
            if (src_attr.extend == CAIRO_EXTEND_NONE) {
 
923
                D_DEBUG_AT (Cairo_DirectFB, "Running Blit().\n");
 
924
        
 
925
                RUN_CLIPPED( dst, NULL,
 
926
                             dst->dfbsurface->Blit (dst->dfbsurface,
 
927
                                            src->dfbsurface, &sr, dst_x, dst_y));
 
928
            }
 
929
            else if (src_attr.extend == CAIRO_EXTEND_REPEAT) {
 
930
                DFBRegion clip;
 
931
            
 
932
                clip.x1 = dst_x;
 
933
                clip.y1 = dst_y;
 
934
                clip.x2 = dst_x + width  - 1;
 
935
                clip.y2 = dst_y + height - 1;
 
936
            
 
937
                D_DEBUG_AT (Cairo_DirectFB, "Running TileBlit().\n");
 
938
            
 
939
                RUN_CLIPPED( dst, &clip,
 
940
                             dst->dfbsurface->TileBlit (dst->dfbsurface, 
 
941
                                            src->dfbsurface, &sr, dst_x, dst_y));
 
942
            }
 
943
        }   break;
 
944
        
 
945
        case DFXL_STRETCHBLIT: {
 
946
            DFBRectangle sr, dr;
 
947
            double       x1, y1, x2, y2;
 
948
            
 
949
            TRANSFORM_POINT2X (src_attr.matrix, 
 
950
                               src_x, src_y, x1, y1);
 
951
            TRANSFORM_POINT2X (src_attr.matrix, 
 
952
                               src_x+width, src_y+height, x2, y2);
 
953
                               
 
954
            sr.x = _cairo_lround (x1);
 
955
            sr.y = _cairo_lround (y1);
 
956
            sr.w = _cairo_lround (x2-x1);
 
957
            sr.h = _cairo_lround (y2-y1);
 
958
            
 
959
            dr.x = dst_x;
 
960
            dr.y = dst_y;
 
961
            dr.w = width;
 
962
            dr.h = height;
 
963
            
 
964
            D_DEBUG_AT (Cairo_DirectFB, "Running StretchBlit().\n");
 
965
 
 
966
            RUN_CLIPPED (dst, NULL,
 
967
                         dst->dfbsurface->StretchBlit (dst->dfbsurface, 
 
968
                                                       src->dfbsurface, &sr, &dr));
 
969
        }   break;
 
970
        
 
971
        case DFXL_TEXTRIANGLES: {
 
972
            DFBRegion clip;
 
973
            DFBVertex v[4];
 
974
            float     x1, y1, x2, y2;
 
975
            int       w, h;
 
976
            
 
977
            if (cairo_matrix_invert (&src_attr.matrix) != CAIRO_STATUS_SUCCESS) {
 
978
                ret = CAIRO_INT_STATUS_UNSUPPORTED;
 
979
                break;
 
980
            }
 
981
            
 
982
            x1 = src_attr.x_offset;
 
983
            y1 = src_attr.y_offset;
 
984
            x2 = src->width  - x1;
 
985
            y2 = src->height - y1;
 
986
            
 
987
            src->dfbsurface->GetSize (src->dfbsurface, &w, &h);
 
988
            
 
989
            TRANSFORM_POINT3X (src_attr.matrix, 
 
990
                               x1, y1, v[0].x, v[0].y);
 
991
            v[0].z = 0;
 
992
            v[0].w = 1;
 
993
            v[0].s = x1 / w;
 
994
            v[0].t = y1 / h;
 
995
        
 
996
            TRANSFORM_POINT3X (src_attr.matrix, 
 
997
                               x2, y1, v[1].x, v[1].y);
 
998
            v[1].z = 0;
 
999
            v[1].w = 1;
 
1000
            v[1].s = x2 / w;
 
1001
            v[1].t = y1 / h;
 
1002
        
 
1003
            TRANSFORM_POINT3X (src_attr.matrix,
 
1004
                               x2, y2, v[2].x, v[2].y);
 
1005
            v[2].z = 0;
 
1006
            v[2].w = 1;
 
1007
            v[2].s = x2 / w;
 
1008
            v[2].t = y2 / h;
 
1009
        
 
1010
            TRANSFORM_POINT3X (src_attr.matrix, 
 
1011
                               x1, y2, v[3].x, v[3].y);
 
1012
            v[3].z = 0;
 
1013
            v[3].w = 1;
 
1014
            v[3].s = x1 / w;
 
1015
            v[3].t = y2 / h;
 
1016
            
 
1017
            clip.x1 = dst_x;
 
1018
            clip.y1 = dst_y;
 
1019
            clip.x2 = dst_x + width  - 1;
 
1020
            clip.y2 = dst_y + height - 1;
 
1021
        
 
1022
            D_DEBUG_AT (Cairo_DirectFB, "Running TextureTriangles().\n");
 
1023
            
 
1024
            RUN_CLIPPED (dst, &clip,
 
1025
                         dst->dfbsurface->TextureTriangles (dst->dfbsurface, 
 
1026
                                            src->dfbsurface, v, NULL, 4, DTTF_FAN));
 
1027
        }   break;
 
1028
        
 
1029
        default:
 
1030
            D_BUG ("Unexpected operation");
 
1031
            break;
 
1032
    }
 
1033
 
 
1034
    _directfb_finish_composite (dst, src_pattern, &src->base, &src_attr);
 
1035
    
 
1036
    return ret;
 
1037
}
 
1038
#endif /* DFB_COMPOSITE */
 
1039
 
 
1040
#if DFB_RECTANGLES
 
1041
static cairo_int_status_t
 
1042
_cairo_directfb_surface_fill_rectangles (void                  *abstract_surface,
 
1043
                                         cairo_operator_t       op,
 
1044
                                         const cairo_color_t   *color,
 
1045
                                         cairo_rectangle_int_t *rects,
 
1046
                                         int                    n_rects)
 
1047
{
 
1048
    cairo_directfb_surface_t *dst   = abstract_surface;
 
1049
    DFBSurfaceDrawingFlags    flags;
 
1050
    DFBSurfaceBlendFunction   sblend;
 
1051
    DFBSurfaceBlendFunction   dblend;
 
1052
    DFBRectangle              r[n_rects];
 
1053
    int                       i;
 
1054
    
 
1055
    D_DEBUG_AT (Cairo_DirectFB, 
 
1056
                "%s( dst=%p, op=%d, color=%p, rects=%p, n_rects=%d ).\n",
 
1057
                __FUNCTION__, dst, op, color, rects, n_rects);
 
1058
 
 
1059
    if (_directfb_get_operator (op, &sblend, &dblend))
 
1060
        return CAIRO_INT_STATUS_UNSUPPORTED;
 
1061
        
 
1062
    if (color->alpha_short >= 0xff00) {
 
1063
        if (sblend == DSBF_SRCALPHA)
 
1064
            sblend = DSBF_ONE;
 
1065
        else if (sblend == DSBF_INVSRCALPHA)
 
1066
            sblend = DSBF_ZERO;
 
1067
            
 
1068
        if (dblend == DSBF_SRCALPHA)
 
1069
            dblend = DSBF_ONE;
 
1070
        else if (dblend == DSBF_INVSRCALPHA)
 
1071
            dblend = DSBF_ZERO;
 
1072
    }
 
1073
    if (dst->content == CAIRO_CONTENT_COLOR) {
 
1074
        if (sblend == DSBF_DESTALPHA)
 
1075
            sblend = DSBF_ONE;
 
1076
        else if (sblend == DSBF_INVDESTALPHA)
 
1077
            sblend = DSBF_ZERO;
 
1078
         
 
1079
        if (dblend == DSBF_DESTALPHA)
 
1080
            dblend = DSBF_ONE;
 
1081
        else if (dblend == DSBF_INVDESTALPHA)
 
1082
            dblend = DSBF_ZERO;   
 
1083
    }
 
1084
    
 
1085
    flags = (sblend == DSBF_ONE && dblend == DSBF_ZERO) ? DSDRAW_NOFX : DSDRAW_BLEND;
 
1086
    dst->dfbsurface->SetDrawingFlags (dst->dfbsurface, flags);
 
1087
    if (flags & DSDRAW_BLEND) {
 
1088
        dst->dfbsurface->SetSrcBlendFunction (dst->dfbsurface, sblend);
 
1089
        dst->dfbsurface->SetDstBlendFunction (dst->dfbsurface, dblend);
 
1090
    }    
 
1091
    
 
1092
    dst->dfbsurface->SetColor (dst->dfbsurface, 
 
1093
                               color->red_short   >> 8,
 
1094
                               color->green_short >> 8, 
 
1095
                               color->blue_short  >> 8, 
 
1096
                               color->alpha_short >> 8 );
 
1097
       
 
1098
    for (i = 0; i < n_rects; i++) {
 
1099
        r[i].x = rects[i].x;
 
1100
        r[i].y = rects[i].y;
 
1101
        r[i].w = rects[i].width;
 
1102
        r[i].h = rects[i].height;
 
1103
    }
 
1104
     
 
1105
    RUN_CLIPPED (dst, NULL,
 
1106
                 dst->dfbsurface->FillRectangles (dst->dfbsurface, r, n_rects));
 
1107
    
 
1108
    return CAIRO_STATUS_SUCCESS;
 
1109
}
 
1110
#endif
 
1111
 
 
1112
#if DFB_COMPOSITE_TRAPEZOIDS
 
1113
static cairo_int_status_t
 
1114
_cairo_directfb_surface_composite_trapezoids (cairo_operator_t   op,
 
1115
                                              cairo_pattern_t   *pattern,
 
1116
                                              void              *abstract_dst,
 
1117
                                              cairo_antialias_t  antialias,
 
1118
                                              int  src_x,   int  src_y,
 
1119
                                              int  dst_x,   int  dst_y,
 
1120
                                              unsigned int       width,
 
1121
                                              unsigned int       height,
 
1122
                                              cairo_trapezoid_t *traps,
 
1123
                                              int                num_traps )
 
1124
{
 
1125
    cairo_directfb_surface_t   *dst = abstract_dst;
 
1126
    cairo_directfb_surface_t   *src;
 
1127
    cairo_surface_attributes_t  src_attr;
 
1128
    cairo_status_t              ret;
 
1129
    DFBAccelerationMask         accel;
 
1130
    
 
1131
    D_DEBUG_AT (Cairo_DirectFB,
 
1132
                "%s( op=%d, pattern=%p, dst=%p, antialias=%d,"
 
1133
                   " src_x=%d, src_y=%d, dst_x=%d, dst_y=%d,"
 
1134
                   " width=%u, height=%u, traps=%p, num_traps=%d ).\n",
 
1135
                __FUNCTION__, op, pattern, dst, antialias,
 
1136
                src_x, src_y, dst_x, dst_y, width, height, traps, num_traps);
 
1137
 
 
1138
    if (antialias != CAIRO_ANTIALIAS_NONE)
 
1139
        return CAIRO_INT_STATUS_UNSUPPORTED;
 
1140
        
 
1141
    /* Textures are not supported yet. */
 
1142
    if (pattern->type != CAIRO_PATTERN_TYPE_SOLID)
 
1143
        return CAIRO_INT_STATUS_UNSUPPORTED;
 
1144
    
 
1145
    ret = _directfb_prepare_composite (dst, pattern, NULL, op,
 
1146
                                       &src_x, &src_y, NULL, NULL, 
 
1147
                                       width, height, &src, &src_attr);
 
1148
    if (ret)
 
1149
        return ret;
 
1150
   
 
1151
    dst->dfbsurface->GetAccelerationMask (dst->dfbsurface, src->dfbsurface, &accel);
 
1152
    
 
1153
    ret = CAIRO_INT_STATUS_UNSUPPORTED;
 
1154
    
 
1155
    if (accel & DFXL_TEXTRIANGLES) {
 
1156
        DFBVertex  vertex[6*num_traps];
 
1157
        DFBVertex *v = &vertex[0];
 
1158
        int        n;
 
1159
      
 
1160
#define ADD_TRI(id, x1, y1, s1, t1, x2, y2, s2, t2, x3, y3, s3, t3) {\
 
1161
    const int p = (id)*3;\
 
1162
    v[p+0].x=(x1); v[p+0].y=(y1); v[p+0].z=0; v[p+0].w=1; v[p+0].s=(s1); v[p+0].t=(t1);\
 
1163
    v[p+1].x=(x2); v[p+1].y=(y2); v[p+1].z=0; v[p+1].w=1; v[p+1].s=(s2); v[p+1].t=(t2);\
 
1164
    v[p+2].x=(x3); v[p+2].y=(y3); v[p+2].z=0; v[p+2].w=1; v[p+2].s=(s3); v[p+2].t=(t3);\
 
1165
}         
 
1166
       
 
1167
        for (n = 0; num_traps; num_traps--) {
 
1168
            float lx1, ly1, lx2, ly2;
 
1169
            float rx1, ry1, rx2, ry2;
 
1170
            
 
1171
            /* XXX: Do we need to validate the trapezoid? */
 
1172
 
 
1173
            lx1 = traps->left.p1.x/65536.0;
 
1174
            ly1 = traps->left.p1.y/65536.0;
 
1175
            lx2 = traps->left.p2.x/65536.0;
 
1176
            ly2 = traps->left.p2.y/65536.0;
 
1177
            rx1 = traps->right.p1.x/65536.0;
 
1178
            ry1 = traps->right.p1.y/65536.0;
 
1179
            rx2 = traps->right.p2.x/65536.0;
 
1180
            ry2 = traps->right.p2.y/65536.0;
 
1181
            
 
1182
            if (traps->left.p1.y < traps->top) {
 
1183
                float y = traps->top/65536.0;
 
1184
                if (lx2 != lx1)
 
1185
                    lx1 = (y - ly1) * (lx2 - lx1) / (ly2 - ly1) + lx1;
 
1186
                ly1 = y;
 
1187
            } 
 
1188
            if (traps->left.p2.y > traps->bottom) {
 
1189
                float y = traps->bottom/65536.0;
 
1190
                if (lx2 != lx1)
 
1191
                    lx2 = (y - ly1) * (lx2 - lx1) / (ly2 - ly1) + lx1;
 
1192
                ly2 = y;
 
1193
            }
 
1194
            
 
1195
            if (traps->right.p1.y < traps->top) {
 
1196
                float y = traps->top/65536.0;
 
1197
                if (rx2 != rx1)
 
1198
                    rx1 = (y - ry1) * (rx2 - rx1) / (ry2 - ry1) + rx1;
 
1199
                ry1 = y;
 
1200
            }
 
1201
            if (traps->right.p2.y > traps->bottom) {
 
1202
                float y = traps->bottom/65536.0;
 
1203
                if (rx2 != rx1)
 
1204
                    rx2 = (y - ry1) * (rx2 - rx1) / (ry2 - ry1) + rx1;
 
1205
                ry2 = y;
 
1206
            }
 
1207
             
 
1208
            if (lx1 == rx1 && ly1 == ry1) {
 
1209
                ADD_TRI (0, lx2, ly2, 0, 0,
 
1210
                            lx1, ly1, 0, 0,
 
1211
                            rx2, ry2, 0, 0 );
 
1212
                v += 3;
 
1213
                n += 3;
 
1214
            }
 
1215
            else if (lx2 == rx2 && ly2 == ry2) {
 
1216
                ADD_TRI (0, lx1, ly1, 0, 0,
 
1217
                            lx2, ly2, 0, 0,
 
1218
                            rx1, ry1, 0, 0 );
 
1219
                v += 3;
 
1220
                n += 3;
 
1221
            }
 
1222
            else {
 
1223
                ADD_TRI (0, lx1, ly1, 0, 0, 
 
1224
                            rx1, ry1, 0, 0,
 
1225
                            lx2, ly2, 0, 0);
 
1226
                ADD_TRI (1, lx2, ly2, 0, 0,
 
1227
                            rx1, ry1, 0, 0,
 
1228
                            rx2, ry2, 0, 0);            
 
1229
                v += 6;
 
1230
                n += 6;
 
1231
            }
 
1232
            
 
1233
            traps++;
 
1234
        }
 
1235
        
 
1236
#undef ADD_TRI
 
1237
              
 
1238
        D_DEBUG_AT (Cairo_DirectFB, "Running TextureTriangles().\n");
 
1239
            
 
1240
        RUN_CLIPPED (dst, NULL,
 
1241
                     dst->dfbsurface->TextureTriangles (dst->dfbsurface, src->dfbsurface, 
 
1242
                                                    vertex, NULL, n, DTTF_LIST));
 
1243
                                            
 
1244
        ret = CAIRO_STATUS_SUCCESS;
 
1245
    }
 
1246
    
 
1247
    _directfb_finish_composite (dst, pattern, &src->base, &src_attr);
 
1248
 
 
1249
    return ret;
 
1250
}
 
1251
#endif /* DFB_COMPOSITE_TRAPEZOIDS */
 
1252
 
 
1253
static cairo_int_status_t
 
1254
_cairo_directfb_surface_set_clip_region (void           *abstract_surface,
 
1255
                                         cairo_region_t *region)
 
1256
{
 
1257
    cairo_directfb_surface_t *surface = abstract_surface;
 
1258
    
 
1259
    D_DEBUG_AT (Cairo_DirectFB, 
 
1260
                "%s( surface=%p, region=%p ).\n",
 
1261
                __FUNCTION__, surface, region);
 
1262
    
 
1263
    if (region) {
 
1264
        cairo_box_int_t *boxes;
 
1265
        int              n_boxes;
 
1266
        cairo_status_t   status;
 
1267
        int              i;
 
1268
 
 
1269
        status = _cairo_region_get_boxes (region, &n_boxes, &boxes);
 
1270
        if (status)
 
1271
            return status;
 
1272
        
 
1273
        if (surface->n_clips != n_boxes) {
 
1274
            if (surface->clips)
 
1275
                free (surface->clips);
 
1276
            
 
1277
            surface->clips = _cairo_malloc_ab (n_boxes, sizeof(DFBRegion));
 
1278
            if (!surface->clips) {
 
1279
                surface->n_clips = 0;
 
1280
                _cairo_region_boxes_fini (region, boxes);
 
1281
                return _cairo_error (CAIRO_STATUS_NO_MEMORY);
 
1282
            }
 
1283
        
 
1284
            surface->n_clips = n_boxes;
 
1285
        }
 
1286
        
 
1287
        for (i = 0; i < n_boxes; i++) {
 
1288
            surface->clips[i].x1 = boxes[i].p1.x;
 
1289
            surface->clips[i].y1 = boxes[i].p1.y;
 
1290
            surface->clips[i].x2 = boxes[i].p2.x;
 
1291
            surface->clips[i].y2 = boxes[i].p2.y;
 
1292
        }
 
1293
 
 
1294
        _cairo_region_boxes_fini (region, boxes);
 
1295
    }
 
1296
    else {
 
1297
        if (surface->clips) {
 
1298
            free (surface->clips);
 
1299
            surface->clips = NULL;
 
1300
            surface->n_clips = 0;
 
1301
        }
 
1302
    }
 
1303
 
 
1304
    return CAIRO_STATUS_SUCCESS;
 
1305
}
 
1306
 
 
1307
static cairo_int_status_t
 
1308
_cairo_directfb_abstract_surface_get_extents (void                  *abstract_surface,
 
1309
                                              cairo_rectangle_int_t *rectangle)
 
1310
{
 
1311
    cairo_directfb_surface_t *surface = abstract_surface;
 
1312
    
 
1313
    D_DEBUG_AT (Cairo_DirectFB,
 
1314
                "%s( surface=%p, rectangle=%p ).\n",
 
1315
                __FUNCTION__, surface, rectangle);
 
1316
    
 
1317
    if (rectangle) {
 
1318
        if (!surface->local) {
 
1319
            surface->dfbsurface->GetSize (surface->dfbsurface,
 
1320
                                          &surface->width, &surface->height);
 
1321
        }   
 
1322
        rectangle->x = 0;
 
1323
        rectangle->y = 0;
 
1324
        rectangle->width  = surface->width;
 
1325
        rectangle->height = surface->height;
 
1326
    }
 
1327
    
 
1328
    return CAIRO_STATUS_SUCCESS;
 
1329
}
 
1330
 
 
1331
#if DFB_SHOW_GLYPHS
 
1332
static cairo_directfb_font_cache_t*
 
1333
_directfb_allocate_font_cache (IDirectFB *dfb, int width, int height)
 
1334
{
 
1335
    cairo_directfb_font_cache_t *cache;
 
1336
 
 
1337
    cache = calloc (1, sizeof(cairo_directfb_font_cache_t));
 
1338
    if (!cache)
 
1339
        return NULL;
 
1340
 
 
1341
    cache->dfb = dfb;
 
1342
    cache->dfbsurface = _directfb_buffer_surface_create (dfb, 
 
1343
                            _directfb_argb_font ? DSPF_ARGB : DSPF_A8, width, height);
 
1344
    if (!cache->dfbsurface) {
 
1345
        free (cache);
 
1346
        return NULL;
 
1347
    }
 
1348
    cache->width  = width;
 
1349
    cache->height = height;
 
1350
 
 
1351
    return cache;
 
1352
}
 
1353
 
 
1354
static void
 
1355
_directfb_destroy_font_cache (cairo_directfb_font_cache_t *cache)
 
1356
{
 
1357
    cache->dfbsurface->Release (cache->dfbsurface);
 
1358
    free (cache);
 
1359
}
 
1360
 
 
1361
static cairo_status_t
 
1362
_directfb_acquire_font_cache (cairo_directfb_surface_t     *surface,
 
1363
                              cairo_scaled_font_t          *scaled_font,
 
1364
                              const cairo_glyph_t          *glyphs,
 
1365
                              int                           num_glyphs,
 
1366
                              cairo_directfb_font_cache_t **ret_cache,
 
1367
                              DFBRectangle                 *rects,
 
1368
                              DFBPoint                     *points,
 
1369
                              int                          *ret_num )
 
1370
{
 
1371
    cairo_status_t               ret;
 
1372
    cairo_scaled_glyph_t        *chars[num_glyphs];
 
1373
    int                          num_chars = 0;
 
1374
    cairo_directfb_font_cache_t *cache     = NULL; 
 
1375
    int                          n         = 0;
 
1376
    int                          x         = 0;
 
1377
    int                          y         = 0;
 
1378
    int                          w         = 8;
 
1379
    int                          h         = 8;
 
1380
    int                          i;
 
1381
    
 
1382
    if (scaled_font->surface_private) {
 
1383
        cache = scaled_font->surface_private;
 
1384
        x = cache->x;
 
1385
        y = cache->y;
 
1386
    }
 
1387
    
 
1388
    for (i = 0; i < num_glyphs; i++) {
 
1389
        cairo_scaled_glyph_t  *scaled_glyph;
 
1390
        cairo_image_surface_t *img;
 
1391
        
 
1392
        ret = _cairo_scaled_glyph_lookup (scaled_font, glyphs[i].index,
 
1393
                                          CAIRO_SCALED_GLYPH_INFO_SURFACE,
 
1394
                                          &scaled_glyph);
 
1395
        if (ret)
 
1396
            return ret;
 
1397
        
 
1398
        img = scaled_glyph->surface;
 
1399
        switch (img->format) {
 
1400
            case CAIRO_FORMAT_A1:
 
1401
            case CAIRO_FORMAT_A8:
 
1402
            case CAIRO_FORMAT_ARGB32:
 
1403
                break;
 
1404
            default:
 
1405
                D_DEBUG_AT (Cairo_DirectFB,
 
1406
                            "Unsupported font format %d!\n", img->format);
 
1407
                return CAIRO_INT_STATUS_UNSUPPORTED;
 
1408
        }
 
1409
        
 
1410
        points[n].x = _cairo_lround (glyphs[i].x - img->base.device_transform.x0);
 
1411
        points[n].y = _cairo_lround (glyphs[i].y - img->base.device_transform.y0);
 
1412
        
 
1413
        if (points[n].x >= surface->width  ||
 
1414
            points[n].y >= surface->height ||
 
1415
            points[n].x+img->width  <= 0   ||
 
1416
            points[n].y+img->height <= 0)
 
1417
            continue;
 
1418
        
 
1419
        if (!scaled_glyph->surface_private) {
 
1420
            DFBRectangle *rect;
 
1421
            
 
1422
            if (x+img->width > 2048) {
 
1423
                x = 0;
 
1424
                y = h;
 
1425
                h = 0;
 
1426
            }
 
1427
        
 
1428
            rects[n].x = x;
 
1429
            rects[n].y = y;
 
1430
            rects[n].w = img->width;
 
1431
            rects[n].h = img->height;
 
1432
 
 
1433
            x += img->width;
 
1434
            h  = MAX (h, img->height);
 
1435
            w  = MAX (w, x);
 
1436
            
 
1437
            /* Remember glyph location */ 
 
1438
            rect = malloc (sizeof(DFBRectangle));
 
1439
            if (!rect)
 
1440
                return _cairo_error (CAIRO_STATUS_NO_MEMORY);
 
1441
            *rect = rects[n];
 
1442
            
 
1443
            scaled_glyph->surface_private = rect;
 
1444
            chars[num_chars++] = scaled_glyph;
 
1445
            
 
1446
            /*D_DEBUG_AT (Cairo_DirectFB, 
 
1447
                        "Glyph %lu will be loaded at (%d,%d).\n",
 
1448
                        glyphs[i].index, rects[n].x, rects[n].y);*/
 
1449
        }
 
1450
        else {
 
1451
            rects[n] = *((DFBRectangle *)scaled_glyph->surface_private);
 
1452
            
 
1453
            /*D_DEBUG_AT (Cairo_DirectFB, 
 
1454
                        "Glyph %lu already loaded at (%d,%d).\n",
 
1455
                        glyphs[i].index, rects[n].x, rects[n].y);*/
 
1456
        }
 
1457
            
 
1458
        n++;
 
1459
    }
 
1460
    
 
1461
    if (!n)
 
1462
        return CAIRO_INT_STATUS_NOTHING_TO_DO;
 
1463
    
 
1464
    h += y;
 
1465
    w = MAX (w, 8);
 
1466
    h = MAX (h, 8);
 
1467
     
 
1468
    if (cache) {
 
1469
        if (cache->width < w || cache->height < h) {
 
1470
            cairo_directfb_font_cache_t *new_cache;
 
1471
            
 
1472
            w = MAX (w, cache->width);
 
1473
            h = MAX (h, cache->height);
 
1474
            
 
1475
            D_DEBUG_AT (Cairo_DirectFB,
 
1476
                        "Reallocating font cache (%dx%d).\n", w, h);
 
1477
            
 
1478
            new_cache = _directfb_allocate_font_cache (surface->dfb, w, h);
 
1479
            if (!new_cache)
 
1480
                return _cairo_error (CAIRO_STATUS_NO_MEMORY);
 
1481
            
 
1482
            new_cache->dfbsurface->Blit (new_cache->dfbsurface,
 
1483
                                         cache->dfbsurface, NULL, 0, 0);
 
1484
            
 
1485
            _directfb_destroy_font_cache (cache);
 
1486
            scaled_font->surface_private = cache = new_cache;
 
1487
        }
 
1488
    }
 
1489
    else {
 
1490
        D_DEBUG_AT (Cairo_DirectFB,
 
1491
                    "Allocating font cache (%dx%d).\n", w, h);
 
1492
        
 
1493
        cache = _directfb_allocate_font_cache (surface->dfb, w, h);
 
1494
        if (!cache)
 
1495
            return _cairo_error (CAIRO_STATUS_NO_MEMORY);
 
1496
            
 
1497
        scaled_font->surface_backend = &cairo_directfb_surface_backend;
 
1498
        scaled_font->surface_private = cache;
 
1499
    }
 
1500
    
 
1501
    if (num_chars) {
 
1502
        unsigned char *data;
 
1503
        int            pitch;
 
1504
    
 
1505
        if (cache->dfbsurface->Lock (cache->dfbsurface, 
 
1506
                                     DSLF_WRITE, (void *)&data, &pitch))
 
1507
            return _cairo_error (CAIRO_STATUS_NO_MEMORY);
 
1508
            
 
1509
        for (i = 0; i < num_chars; i++) {
 
1510
            cairo_image_surface_t *img  = chars[i]->surface;
 
1511
            DFBRectangle          *rect = chars[i]->surface_private;
 
1512
            unsigned char         *dst  = data;
 
1513
            unsigned char         *src  = img->data;
 
1514
            int                    j;
 
1515
            
 
1516
            dst += rect->y * pitch + (_directfb_argb_font ? (rect->x<<2) : rect->x);
 
1517
                        
 
1518
            if (img->format == CAIRO_FORMAT_A1) {
 
1519
                for (h = rect->h; h; h--) {
 
1520
                    if (_directfb_argb_font) {
 
1521
                        for (j = 0; j < rect->w; j++)
 
1522
                            ((uint32_t *)dst)[j] = (src[j>>3] & (1 << (j&7))) ? 0xffffffff : 0;
 
1523
                    }
 
1524
                    else {
 
1525
                        for (j = 0; j < rect->w; j++)
 
1526
                            dst[j] = (src[j>>3] & (1 << (j&7))) ? 0xff : 0;
 
1527
                    }
 
1528
                    
 
1529
                    dst += pitch;
 
1530
                    src += img->stride;
 
1531
                }
 
1532
            }
 
1533
            else if (img->format == CAIRO_FORMAT_A8) {
 
1534
                for (h = rect->h; h; h--) {
 
1535
                    if (_directfb_argb_font) {
 
1536
                        for (j = 0; j < rect->w; j++)
 
1537
                            ((uint32_t *)dst)[j] = src[j] * 0x01010101;
 
1538
                    }
 
1539
                    else {
 
1540
                        direct_memcpy (dst, src, rect->w);
 
1541
                    }
 
1542
                    
 
1543
                    dst += pitch;
 
1544
                    src += img->stride;
 
1545
                }
 
1546
            }
 
1547
            else { /* ARGB32 */
 
1548
                for (h = rect->h; h; h--) {
 
1549
                    if (_directfb_argb_font) {
 
1550
                        direct_memcpy (dst, src, rect->w<<2);
 
1551
                    }
 
1552
                    else {
 
1553
                        for (j = 0; j < rect->w; j++)
 
1554
                            dst[j] = ((uint32_t *)src)[j] >> 24;
 
1555
                    }
 
1556
                    
 
1557
                    dst += pitch;
 
1558
                    src += img->stride;
 
1559
                }
 
1560
            }
 
1561
        }
 
1562
        
 
1563
        cache->dfbsurface->Unlock (cache->dfbsurface);
 
1564
    }
 
1565
 
 
1566
    cache->x = x;
 
1567
    cache->y = y;
 
1568
    
 
1569
    *ret_cache = cache;
 
1570
    *ret_num   = n;
 
1571
 
 
1572
    return CAIRO_STATUS_SUCCESS;
 
1573
}
 
1574
 
 
1575
static void
 
1576
_cairo_directfb_surface_scaled_font_fini (cairo_scaled_font_t *scaled_font)
 
1577
{
 
1578
    cairo_directfb_font_cache_t *cache = scaled_font->surface_private;
 
1579
    
 
1580
    D_DEBUG_AT (Cairo_DirectFB,
 
1581
                "%s( scaled_font=%p ).\n", __FUNCTION__, scaled_font);
 
1582
    
 
1583
    if (cache) {
 
1584
        _directfb_destroy_font_cache (cache);
 
1585
        scaled_font->surface_private = NULL;
 
1586
    }
 
1587
}
 
1588
 
 
1589
static void
 
1590
_cairo_directfb_surface_scaled_glyph_fini (cairo_scaled_glyph_t *scaled_glyph,
 
1591
                                           cairo_scaled_font_t  *scaled_font)
 
1592
{
 
1593
     D_DEBUG_AT (Cairo_DirectFB,
 
1594
                 "%s( scaled_glyph=%p, scaled_font=%p ).\n",
 
1595
                 __FUNCTION__, scaled_glyph, scaled_font);
 
1596
 
 
1597
     if (scaled_glyph->surface_private) {
 
1598
          free (scaled_glyph->surface_private);
 
1599
          scaled_glyph->surface_private = NULL;
 
1600
     }
 
1601
}
 
1602
 
 
1603
static cairo_int_status_t
 
1604
_cairo_directfb_surface_show_glyphs (void                *abstract_dst,
 
1605
                                     cairo_operator_t     op,
 
1606
                                     cairo_pattern_t     *pattern,
 
1607
                                     cairo_glyph_t       *glyphs,
 
1608
                                     int                  num_glyphs,
 
1609
                                     cairo_scaled_font_t *scaled_font)
 
1610
{
 
1611
    cairo_directfb_surface_t    *dst = abstract_dst;
 
1612
    cairo_directfb_font_cache_t *cache;
 
1613
    cairo_status_t               ret;
 
1614
    DFBSurfaceBlittingFlags      flags;
 
1615
    DFBSurfaceBlendFunction      sblend;
 
1616
    DFBSurfaceBlendFunction      dblend;
 
1617
    DFBColor                     color;
 
1618
    DFBRectangle                 rects[num_glyphs];
 
1619
    DFBPoint                     points[num_glyphs];
 
1620
    int                          num;
 
1621
    
 
1622
    D_DEBUG_AT (Cairo_DirectFB,
 
1623
                "%s( dst=%p, op=%d, pattern=%p, glyphs=%p, num_glyphs=%d, scaled_font=%p ).\n",
 
1624
                __FUNCTION__, dst, op, pattern, glyphs, num_glyphs, scaled_font);
 
1625
                            
 
1626
    if (pattern->type != CAIRO_PATTERN_TYPE_SOLID)
 
1627
        return CAIRO_INT_STATUS_UNSUPPORTED;
 
1628
        
 
1629
    if (_directfb_get_operator (op, &sblend, &dblend) ||
 
1630
        sblend == DSBF_DESTALPHA || sblend == DSBF_INVDESTALPHA) 
 
1631
        return CAIRO_INT_STATUS_UNSUPPORTED;
 
1632
        
 
1633
    ret = _directfb_acquire_font_cache (dst, scaled_font, glyphs, num_glyphs,
 
1634
                                        &cache, &rects[0], &points[0], &num);
 
1635
    if (ret) {
 
1636
        if (ret == CAIRO_INT_STATUS_NOTHING_TO_DO)
 
1637
            ret = CAIRO_STATUS_SUCCESS;
 
1638
        return ret;
 
1639
    }
 
1640
        
 
1641
    color.a = ((cairo_solid_pattern_t *)pattern)->color.alpha_short >> 8;
 
1642
    color.r = ((cairo_solid_pattern_t *)pattern)->color.red_short   >> 8;
 
1643
    color.g = ((cairo_solid_pattern_t *)pattern)->color.green_short >> 8;
 
1644
    color.b = ((cairo_solid_pattern_t *)pattern)->color.blue_short  >> 8;
 
1645
    
 
1646
    flags = DSBLIT_BLEND_ALPHACHANNEL | DSBLIT_COLORIZE;
 
1647
    if (color.a != 0xff)
 
1648
        flags |= DSBLIT_BLEND_COLORALPHA;
 
1649
        
 
1650
    if (!_directfb_argb_font) {
 
1651
        if (sblend == DSBF_ONE) {
 
1652
            sblend = DSBF_SRCALPHA;
 
1653
            if (dblend == DSBF_ZERO)
 
1654
                dblend = DSBF_INVSRCALPHA;
 
1655
        }
 
1656
    } 
 
1657
        
 
1658
    dst->dfbsurface->SetBlittingFlags (dst->dfbsurface, flags);
 
1659
    dst->dfbsurface->SetSrcBlendFunction (dst->dfbsurface, sblend);
 
1660
    dst->dfbsurface->SetDstBlendFunction (dst->dfbsurface, dblend);
 
1661
    dst->dfbsurface->SetColor (dst->dfbsurface, color.r, color.g, color.b, color.a);
 
1662
    
 
1663
    D_DEBUG_AT (Cairo_DirectFB, "Running BatchBlit().\n");
 
1664
        
 
1665
    RUN_CLIPPED (dst, NULL,
 
1666
                 dst->dfbsurface->BatchBlit (dst->dfbsurface,
 
1667
                                         cache->dfbsurface, rects, points, num));
 
1668
        
 
1669
    return CAIRO_STATUS_SUCCESS;
 
1670
}
 
1671
#endif /* DFB_SHOW_GLYPHS */
 
1672
 
 
1673
 
 
1674
static cairo_bool_t
 
1675
_cairo_directfb_surface_is_similar (void *surface_a, void *surface_b, cairo_content_t content)
 
1676
{
 
1677
    cairo_directfb_surface_t *a = (cairo_directfb_surface_t *) surface_a;
 
1678
    cairo_directfb_surface_t *b = (cairo_directfb_surface_t *) surface_b;
 
1679
 
 
1680
    return a->dfb == b->dfb;
 
1681
}
 
1682
 
 
1683
static cairo_surface_backend_t cairo_directfb_surface_backend = {
 
1684
         CAIRO_SURFACE_TYPE_DIRECTFB, /*type*/
 
1685
        _cairo_directfb_surface_create_similar,/*create_similar*/
 
1686
        _cairo_directfb_surface_finish, /*finish*/
 
1687
        _cairo_directfb_surface_acquire_source_image,/*acquire_source_image*/
 
1688
        _cairo_directfb_surface_release_source_image,/*release_source_image*/
 
1689
        _cairo_directfb_surface_acquire_dest_image,/*acquire_dest_image*/
 
1690
        _cairo_directfb_surface_release_dest_image,/*release_dest_image*/ 
 
1691
        _cairo_directfb_surface_clone_similar,/*clone_similar*/
 
1692
#if DFB_COMPOSITE
 
1693
        _cairo_directfb_surface_composite,/*composite*/
 
1694
#else
 
1695
        NULL,/*composite*/
 
1696
#endif
 
1697
#if DFB_RECTANGLES
 
1698
        _cairo_directfb_surface_fill_rectangles,/*fill_rectangles*/
 
1699
#else
 
1700
        NULL,/*fill_rectangles*/
 
1701
#endif
 
1702
#if DFB_COMPOSITE_TRAPEZOIDS
 
1703
        _cairo_directfb_surface_composite_trapezoids,/*composite_trapezoids*/
 
1704
#else
 
1705
        NULL,/*composite_trapezoids*/
 
1706
#endif
 
1707
        NULL, /* copy_page */
 
1708
        NULL, /* show_page */
 
1709
        _cairo_directfb_surface_set_clip_region,/* set_clip_region */
 
1710
        NULL, /* intersect_clip_path */
 
1711
        _cairo_directfb_abstract_surface_get_extents,/* get_extents */
 
1712
        NULL, /* old_show_glyphs */
 
1713
        NULL, /* get_font_options */
 
1714
        NULL, /* flush */
 
1715
        NULL, /* mark_dirty_rectangle */
 
1716
#if DFB_SHOW_GLYPHS
 
1717
        _cairo_directfb_surface_scaled_font_fini,/* scaled_font_fini */
 
1718
        _cairo_directfb_surface_scaled_glyph_fini,/* scaled_glyph_fini */
 
1719
#else
 
1720
        NULL,
 
1721
        NULL,
 
1722
#endif
 
1723
        NULL, /* paint */
 
1724
        NULL, /* mask */
 
1725
        NULL, /* stroke */
 
1726
        NULL, /* fill */
 
1727
#if DFB_SHOW_GLYPHS
 
1728
        _cairo_directfb_surface_show_glyphs,/* show_glyphs */
 
1729
#else
 
1730
        NULL, /* show_glyphs */
 
1731
#endif
 
1732
        NULL, /* snapshot */
 
1733
        _cairo_directfb_surface_is_similar,
 
1734
        NULL /* reset */
 
1735
};
 
1736
 
 
1737
 
 
1738
static void
 
1739
cairo_directfb_surface_backend_init (IDirectFB *dfb)
 
1740
{
 
1741
    static int done = 0;
 
1742
    
 
1743
    if (done)
 
1744
        return;
 
1745
        
 
1746
    if (getenv ("CAIRO_DIRECTFB_NO_ACCEL")) {
 
1747
#if DFB_RECTANGLES
 
1748
        cairo_directfb_surface_backend.fill_rectangles = NULL;
 
1749
#endif
 
1750
#if DFB_COMPOSITE
 
1751
        cairo_directfb_surface_backend.composite = NULL;
 
1752
#endif
 
1753
#if DFB_COMPOSITE_TRAPEZOIDS
 
1754
        cairo_directfb_surface_backend.composite_trapezoids = NULL;
 
1755
#endif
 
1756
#if DFB_SHOW_GLYPHS
 
1757
        cairo_directfb_surface_backend.scaled_font_fini = NULL;
 
1758
        cairo_directfb_surface_backend.scaled_glyph_fini = NULL;
 
1759
        cairo_directfb_surface_backend.show_glyphs = NULL;
 
1760
#endif
 
1761
        D_DEBUG_AT (Cairo_DirectFB, "Acceleration disabled.\n");
 
1762
    }
 
1763
    else {
 
1764
        DFBGraphicsDeviceDescription dsc;
 
1765
        
 
1766
        dfb->GetDeviceDescription (dfb, &dsc);
 
1767
    
 
1768
#if DFB_COMPOSITE
 
1769
        if (!(dsc.acceleration_mask & DFXL_BLIT))
 
1770
            cairo_directfb_surface_backend.composite = NULL;
 
1771
#endif
 
1772
 
 
1773
#if DFB_COMPOSITE_TRAPEZOIDS
 
1774
        if (!(dsc.acceleration_mask & DFXL_TEXTRIANGLES))
 
1775
            cairo_directfb_surface_backend.composite_trapezoids = NULL;
 
1776
#endif
 
1777
    }
 
1778
    
 
1779
    if (getenv ("CAIRO_DIRECTFB_ARGB_FONT")) {
 
1780
        _directfb_argb_font = 1;
 
1781
        D_DEBUG_AT (Cairo_DirectFB, "Using ARGB fonts.\n");
 
1782
    }
 
1783
 
 
1784
    done = 1;
 
1785
}   
 
1786
 
 
1787
 
 
1788
cairo_surface_t *
 
1789
cairo_directfb_surface_create (IDirectFB *dfb, IDirectFBSurface *dfbsurface) 
 
1790
{
 
1791
    cairo_directfb_surface_t *surface;
 
1792
    DFBSurfacePixelFormat     format;
 
1793
   
 
1794
    D_ASSERT (dfb != NULL);
 
1795
    D_ASSERT (dfbsurface != NULL);
 
1796
 
 
1797
    cairo_directfb_surface_backend_init (dfb);
 
1798
        
 
1799
    surface = calloc (1, sizeof(cairo_directfb_surface_t));
 
1800
    if (!surface)
 
1801
        return NULL;
 
1802
     
 
1803
    dfbsurface->AddRef (dfbsurface);   
 
1804
    dfbsurface->GetPixelFormat (dfbsurface, &format);
 
1805
    dfbsurface->GetSize (dfbsurface, &surface->width, &surface->height);
 
1806
    surface->dfb = dfb;
 
1807
    surface->dfbsurface = dfbsurface;  
 
1808
    surface->format = _directfb_to_cairo_format (format);
 
1809
    surface->content = _directfb_format_to_content (format);
 
1810
 
 
1811
    _cairo_surface_init (&surface->base, 
 
1812
                         &cairo_directfb_surface_backend, surface->content);  
 
1813
 
 
1814
    return &surface->base;
 
1815
}
 
1816