src/cairo-directfb-surface.c

   1 /* 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 <chris@chris-wilson.co.uk>
  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 <pixman.h>
  49
  50 #include <directfb.h>
  51 #include <direct/types.h>
  52 #include <direct/debug.h>
  53 #include <direct/memcpy.h>
  54 #include <direct/util.h>
  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, &reg);\
 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, &reg); \
 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);