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-private.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_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_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_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, 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     return CAIRO_INT_STATUS_SUCCESS;
 208 }
 209
 210 static cairo_status_t
 211 _cairo_dfb_surface_flush (void *abstract_surface)
 212 {
 213     cairo_dfb_surface_t *surface = abstract_surface;
 214
 215     if (surface->image.pixman_image) {
 216         surface->dfb_surface->Unlock (surface->dfb_surface);
 217
 218         pixman_image_unref (surface->image.pixman_image);
 219         surface->image.pixman_image = NULL;
 220         surface->image.data = NULL;
 221     }
 222
 223     return CAIRO_STATUS_SUCCESS;
 224 }
 225
 226 #if 0
 227 static inline DFBSurfacePixelFormat
 228 _directfb_from_pixman_format (pixman_format_code_t format)
 229 {
 230     switch ((int) format) {
 231     case PIXMAN_a1r5g5b5: return DSPF_ARGB1555;
 232     case PIXMAN_r5g6b5: return DSPF_RGB16;
 233     case PIXMAN_r8g8b8: return DSPF_RGB24;
 234     case PIXMAN_x8r8g8b8: return DSPF_RGB32;
 235     case PIXMAN_a8r8g8b8: return DSPF_ARGB;
 236     case PIXMAN_a8: return DSPF_A8;
 237     case PIXMAN_yuy2: return DSPF_YUY2;
 238     case PIXMAN_r3g3b2: return DSPF_RGB332;
 239     case PIXMAN_yv12: return DSPF_YV12;
 240     case PIXMAN_a1: return DSPF_A1; /* bit reversed, oops */
 241     case PIXMAN_a4r4g4b4: return DSPF_ARGB4444;
 242     case PIXMAN_a4: return DSPF_A4;
 243     case PIXMAN_x4r4g4b4: return DSPF_RGB444;
 244     case PIXMAN_x1r5g5b5: return DSPF_RGB555;
 245 #if DFB_NUM_PIXELFORMATS >= 29
 246     case PIXMAN_x1b5g5r5: return DSPF_BGR555;
 247 #endif
 248     default: return 0;
 249     }
 250 }
 251
 252 static cairo_bool_t
 253 _directfb_get_operator (cairo_operator_t         operator,
 254                         DFBSurfaceBlendFunction *ret_srcblend,
 255                         DFBSurfaceBlendFunction *ret_dstblend)
 256 {
 257     DFBSurfaceBlendFunction srcblend = DSBF_ONE;
 258     DFBSurfaceBlendFunction dstblend = DSBF_ZERO;
 259
 260     switch (operator) {
 261     case CAIRO_OPERATOR_CLEAR:
 262         srcblend = DSBF_ZERO;
 263         dstblend = DSBF_ZERO;
 264         break;
 265     case CAIRO_OPERATOR_SOURCE:
 266         srcblend = DSBF_ONE;
 267         dstblend = DSBF_ZERO;
 268         break;
 269     case CAIRO_OPERATOR_OVER:
 270         srcblend = DSBF_ONE;
 271         dstblend = DSBF_INVSRCALPHA;
 272         break;
 273     case CAIRO_OPERATOR_IN:
 274         srcblend = DSBF_DESTALPHA;
 275         dstblend = DSBF_ZERO;
 276         break;
 277     case CAIRO_OPERATOR_OUT:
 278         srcblend = DSBF_INVDESTALPHA;
 279         dstblend = DSBF_ZERO;
 280         break;
 281     case CAIRO_OPERATOR_ATOP:
 282         srcblend = DSBF_DESTALPHA;
 283         dstblend = DSBF_INVSRCALPHA;
 284         break;
 285     case CAIRO_OPERATOR_DEST:
 286         srcblend = DSBF_ZERO;
 287         dstblend = DSBF_ONE;
 288         break;
 289     case CAIRO_OPERATOR_DEST_OVER:
 290         srcblend = DSBF_INVDESTALPHA;
 291         dstblend = DSBF_ONE;
 292         break;
 293     case CAIRO_OPERATOR_DEST_IN:
 294         srcblend = DSBF_ZERO;
 295         dstblend = DSBF_SRCALPHA;
 296         break;
 297     case CAIRO_OPERATOR_DEST_OUT:
 298         srcblend = DSBF_ZERO;
 299         dstblend = DSBF_INVSRCALPHA;
 300         break;
 301     case CAIRO_OPERATOR_DEST_ATOP:
 302         srcblend = DSBF_INVDESTALPHA;
 303         dstblend = DSBF_SRCALPHA;
 304         break;
 305     case CAIRO_OPERATOR_XOR:
 306         srcblend = DSBF_INVDESTALPHA;
 307         dstblend = DSBF_INVSRCALPHA;
 308         break;
 309     case CAIRO_OPERATOR_ADD:
 310         srcblend = DSBF_ONE;
 311         dstblend = DSBF_ONE;
 312         break;
 313     case CAIRO_OPERATOR_SATURATE:
 314         /* XXX This does not work. */
 315 #if 0
 316         srcblend = DSBF_SRCALPHASAT;
 317         dstblend = DSBF_ONE;
 318         break;
 319 #endif
 320     case CAIRO_OPERATOR_MULTIPLY:
 321     case CAIRO_OPERATOR_SCREEN:
 322     case CAIRO_OPERATOR_OVERLAY:
 323     case CAIRO_OPERATOR_DARKEN:
 324     case CAIRO_OPERATOR_LIGHTEN:
 325     case CAIRO_OPERATOR_COLOR_DODGE:
 326     case CAIRO_OPERATOR_COLOR_BURN:
 327     case CAIRO_OPERATOR_HARD_LIGHT:
 328     case CAIRO_OPERATOR_SOFT_LIGHT:
 329     case CAIRO_OPERATOR_DIFFERENCE:
 330     case CAIRO_OPERATOR_EXCLUSION:
 331     case CAIRO_OPERATOR_HSL_HUE:
 332     case CAIRO_OPERATOR_HSL_SATURATION:
 333     case CAIRO_OPERATOR_HSL_COLOR:
 334     case CAIRO_OPERATOR_HSL_LUMINOSITY:
 335     default:
 336         return FALSE;
 337     }
 338
 339     *ret_srcblend = srcblend;
 340     *ret_dstblend = dstblend;
 341
 342     return TRUE;
 343 }
 344 #define RUN_CLIPPED(surface, clip_region, clip, func) {\
 345     if ((clip_region) != NULL) {\
 346         int n_clips = cairo_region_num_rectangles (clip_region), n; \
 347         for (n = 0; n < n_clips; n++) {\
 348             if (clip) {\
 349                 DFBRegion  reg, *cli = (clip); \
 350                 cairo_rectangle_int_t rect; \
 351                 cairo_region_get_rectangle (clip_region, n, &rect); \
 352                 reg.x1 = rect.x; \
 353                 reg.y1 = rect.y; \
 354                 reg.x2 = rect.x + rect.width - 1; \
 355                 reg.y2 = rect.y + rect.height - 1; \
 356                 if (reg.x2 < cli->x1 || reg.y2 < cli->y1 ||\
 357                     reg.x1 > cli->x2 || reg.y1 > cli->y2)\
 358                     continue;\
 359                 if (reg.x1 < cli->x1)\
 360                     reg.x1 = cli->x1;\
 361                 if (reg.y1 < cli->y1)\
 362                     reg.y1 = cli->y1;\
 363                 if (reg.x2 > cli->x2)\
 364                     reg.x2 = cli->x2;\
 365                 if (reg.y2 > cli->y2)\
 366                     reg.y2 = cli->y2;\
 367                 (surface)->dfbsurface->SetClip ((surface)->dfbsurface, &reg);\
 368             } else {\
 369                 DFBRegion reg; \
 370                 cairo_rectangle_int_t rect; \
 371                 cairo_region_get_rectangle (clip_region, n, &rect); \
 372                 reg.x1 = rect.x; \
 373                 reg.y1 = rect.y; \
 374                 reg.x2 = rect.x + rect.width - 1; \
 375                 reg.y2 = rect.y + rect.height - 1; \
 376                 (surface)->dfbsurface->SetClip ((surface)->dfbsurface, &reg); \
 377             }\
 378             func;\
 379         }\
 380     } else {\
 381         (surface)->dfbsurface->SetClip ((surface)->dfbsurface, clip);\
 382         func;\
 383     }\
 384 }
 385
 386 static cairo_int_status_t
 387 _cairo_dfb_surface_fill_rectangles (void                  *abstract_surface,
 388                                          cairo_operator_t       op,
 389                                          const cairo_color_t   *color,
 390                                          cairo_rectangle_int_t *rects,
 391                                          int                    n_rects)
 392 {
 393     cairo_dfb_surface_t *dst   = abstract_surface;
 394     DFBSurfaceDrawingFlags    flags;
 395     DFBSurfaceBlendFunction   sblend;
 396     DFBSurfaceBlendFunction   dblend;
 397     DFBRectangle              r[n_rects];
 398     int                       i;
 399
 400     D_DEBUG_AT (CairoDFB_Render,
 401                 "%s( dst=%p, op=%d, color=%p, rects=%p, n_rects=%d ).\n",
 402                 __FUNCTION__, dst, op, color, rects, n_rects);
 403
 404     if (! dst->supported_destination)
 405         return CAIRO_INT_STATUS_UNSUPPORTED;
 406
 407     if (! _directfb_get_operator (op, &sblend, &dblend))
 408         return CAIRO_INT_STATUS_UNSUPPORTED;
 409
 410     if (CAIRO_COLOR_IS_OPAQUE (color)) {
 411         if (sblend == DSBF_SRCALPHA)
 412             sblend = DSBF_ONE;
 413         else if (sblend == DSBF_INVSRCALPHA)
 414             sblend = DSBF_ZERO;
 415
 416         if (dblend == DSBF_SRCALPHA)
 417             dblend = DSBF_ONE;
 418         else if (dblend == DSBF_INVSRCALPHA)
 419             dblend = DSBF_ZERO;
 420     }
 421     if ((dst->base.content & CAIRO_CONTENT_ALPHA) == 0) {
 422         if (sblend == DSBF_DESTALPHA)
 423             sblend = DSBF_ONE;
 424         else if (sblend == DSBF_INVDESTALPHA)
 425             sblend = DSBF_ZERO;
 426
 427         if (dblend == DSBF_DESTALPHA)
 428             dblend = DSBF_ONE;
 429         else if (dblend == DSBF_INVDESTALPHA)
 430             dblend = DSBF_ZERO;
 431     }
 432
 433     flags = (sblend == DSBF_ONE && dblend == DSBF_ZERO) ? DSDRAW_NOFX : DSDRAW_BLEND;
 434     dst->dfbsurface->SetDrawingFlags (dst->dfbsurface, flags);
 435     if (flags & DSDRAW_BLEND) {
 436         dst->dfbsurface->SetSrcBlendFunction (dst->dfbsurface, sblend);
 437         dst->dfbsurface->SetDstBlendFunction (dst->dfbsurface, dblend);
 438     }
 439
 440     dst->dfbsurface->SetColor (dst->dfbsurface,
 441                                color->red_short >> 8,
 442                                color->green_short >> 8,
 443                                color->blue_short >> 8,
 444                                color->alpha_short >> 8);
 445
 446     for (i = 0; i < n_rects; i++) {
 447         r[i].x = rects[i].x;
 448         r[i].y = rects[i].y;
 449         r[i].w = rects[i].width;
 450         r[i].h = rects[i].height;
 451     }
 452
 453     RUN_CLIPPED (dst, NULL, NULL,
 454                  dst->dfbsurface->FillRectangles (dst->dfbsurface, r, n_rects));
 455
 456     return CAIRO_STATUS_SUCCESS;
 457 }
 458 #endif
 459
 460 static cairo_surface_backend_t
 461 _cairo_dfb_surface_backend = {
 462     CAIRO_SURFACE_TYPE_DIRECTFB, /*type*/
 463     _cairo_dfb_surface_finish, /*finish*/
 464     _cairo_default_context_create,
 465
 466     _cairo_dfb_surface_create_similar,/*create_similar*/
 467     NULL, /* create similar image */
 468     _cairo_dfb_surface_map_to_image,
 469     _cairo_dfb_surface_unmap_image,
 470
 471     _cairo_surface_default_source,
 472     _cairo_surface_default_acquire_source_image,
 473     _cairo_surface_default_release_source_image,
 474     NULL,
 475
 476     NULL, /* copy_page */
 477     NULL, /* show_page */
 478
 479     _cairo_image_surface_get_extents,
 480     _cairo_image_surface_get_font_options,
 481
 482     _cairo_dfb_surface_flush,
 483     NULL, /* mark_dirty_rectangle */
 484
 485     _cairo_surface_fallback_paint,
 486     _cairo_surface_fallback_mask,
 487     _cairo_surface_fallback_stroke,
 488     _cairo_surface_fallback_fill,
 489     NULL, /* fill-stroke */
 490     _cairo_surface_fallback_glyphs,
 491 };
 492
 493 cairo_surface_t *
 494 cairo_directfb_surface_create (IDirectFB *dfb, IDirectFBSurface *dfbsurface)
 495 {
 496     cairo_dfb_surface_t *surface;
 497     DFBSurfacePixelFormat     format;
 498     DFBSurfaceCapabilities caps;
 499     pixman_format_code_t pixman_format;
 500     int width, height;
 501
 502     D_ASSERT (dfb != NULL);
 503     D_ASSERT (dfbsurface != NULL);
 504
 505     dfbsurface->GetPixelFormat (dfbsurface, &format);
 506     dfbsurface->GetSize (dfbsurface, &width, &height);
 507
 508     pixman_format = _directfb_to_pixman_format (format);
 509     if (! pixman_format_supported_destination (pixman_format))
 510         return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_INVALID_FORMAT));
 511
 512     surface = calloc (1, sizeof (cairo_dfb_surface_t));
 513     if (surface == NULL)
 514         return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
 515
 516     /* XXX dfb -> device */
 517     _cairo_surface_init (&surface->image.base,
 518                          &_cairo_dfb_surface_backend,
 519                          NULL, /* device */
 520                          _directfb_format_to_content (format));
 521
 522     surface->image.pixman_format = pixman_format;
 523     surface->image.format = _cairo_format_from_pixman_format (pixman_format);
 524
 525     surface->image.width = width;
 526     surface->image.height = height;
 527     surface->image.depth = PIXMAN_FORMAT_DEPTH(pixman_format);
 528
 529     surface->dfb = dfb;
 530     surface->dfb_surface = dfbsurface;
 531     dfbsurface->AddRef (dfbsurface);
 532
 533     dfbsurface->GetCapabilities (dfbsurface, &caps);
 534     if (caps & DSCAPS_PREMULTIPLIED)
 535         surface->blit_premultiplied = TRUE;
 536
 537     return &surface->image.base;
 538 }
 539 slim_hidden_def(cairo_directfb_surface_create);