src/pixman-renderer.c

   1 /*
   2  * Copyright © 2012 Intel Corporation
   3  * Copyright © 2013 Vasily Khoruzhick <anarsoul@gmail.com>
   4  *
   5  * Permission to use, copy, modify, distribute, and sell this software and
   6  * its documentation for any purpose is hereby granted without fee, provided
   7  * that the above copyright notice appear in all copies and that both that
   8  * copyright notice and this permission notice appear in supporting
   9  * documentation, and that the name of the copyright holders not be used in
  10  * advertising or publicity pertaining to distribution of the software
  11  * without specific, written prior permission.  The copyright holders make
  12  * no representations about the suitability of this software for any
  13  * purpose.  It is provided "as is" without express or implied warranty.
  14  *
  15  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
  16  * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
  17  * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
  18  * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
  19  * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
  20  * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  21  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  22  */
  23
  24 #include "config.h"
  25
  26 #include <errno.h>
  27 #include <stdlib.h>
  28
  29 #include "pixman-renderer.h"
  30
  31 #include <linux/input.h>
  32
  33 struct pixman_output_state {
  34         void *shadow_buffer;
  35         pixman_image_t *shadow_image;
  36         pixman_image_t *hw_buffer;
  37 };
  38
  39 struct pixman_surface_state {
  40         struct weston_surface *surface;
  41
  42         pixman_image_t *image;
  43         struct weston_buffer_reference buffer_ref;
  44
  45         struct wl_listener buffer_destroy_listener;
  46         struct wl_listener surface_destroy_listener;
  47         struct wl_listener renderer_destroy_listener;
  48 };
  49
  50 struct pixman_renderer {
  51         struct weston_renderer base;
  52
  53         int repaint_debug;
  54         pixman_image_t *debug_color;
  55         struct weston_binding *debug_binding;
  56
  57         struct wl_signal destroy_signal;
  58 };
  59
  60 static inline struct pixman_output_state *
  61 get_output_state(struct weston_output *output)
  62 {
  63         return (struct pixman_output_state *)output->renderer_state;
  64 }
  65
  66 static int
  67 pixman_renderer_create_surface(struct weston_surface *surface);
  68
  69 static inline struct pixman_surface_state *
  70 get_surface_state(struct weston_surface *surface)
  71 {
  72         if (!surface->renderer_state)
  73                 pixman_renderer_create_surface(surface);
  74
  75         return (struct pixman_surface_state *)surface->renderer_state;
  76 }
  77
  78 static inline struct pixman_renderer *
  79 get_renderer(struct weston_compositor *ec)
  80 {
  81         return (struct pixman_renderer *)ec->renderer;
  82 }
  83
  84 static int
  85 pixman_renderer_read_pixels(struct weston_output *output,
  86                                pixman_format_code_t format, void *pixels,
  87                                uint32_t x, uint32_t y,
  88                                uint32_t width, uint32_t height)
  89 {
  90         struct pixman_output_state *po = get_output_state(output);
  91         pixman_transform_t transform;
  92         pixman_image_t *out_buf;
  93
  94         if (!po->hw_buffer) {
  95                 errno = ENODEV;
  96                 return -1;
  97         }
  98
  99         out_buf = pixman_image_create_bits(format,
 100                 width,
 101                 height,
 102                 pixels,
 103                 (PIXMAN_FORMAT_BPP(format) / 8) * width);
 104
 105         /* Caller expects vflipped source image */
 106         pixman_transform_init_translate(&transform,
 107                                         pixman_int_to_fixed (x),
 108                                         pixman_int_to_fixed (y - pixman_image_get_height (po->hw_buffer)));
 109         pixman_transform_scale(&transform, NULL,
 110                                pixman_fixed_1,
 111                                pixman_fixed_minus_1);
 112         pixman_image_set_transform(po->hw_buffer, &transform);
 113
 114         pixman_image_composite32(PIXMAN_OP_SRC,
 115                                  po->hw_buffer, /* src */
 116                                  NULL /* mask */,
 117                                  out_buf, /* dest */
 118                                  0, 0, /* src_x, src_y */
 119                                  0, 0, /* mask_x, mask_y */
 120                                  0, 0, /* dest_x, dest_y */
 121                                  pixman_image_get_width (po->hw_buffer), /* width */
 122                                  pixman_image_get_height (po->hw_buffer) /* height */);
 123         pixman_image_set_transform(po->hw_buffer, NULL);
 124
 125         pixman_image_unref(out_buf);
 126
 127         return 0;
 128 }
 129
 130 static void
 131 region_global_to_output(struct weston_output *output, pixman_region32_t *region)
 132 {
 133         pixman_region32_translate(region, -output->x, -output->y);
 134         weston_transformed_region(output->width, output->height,
 135                                   output->transform, output->current_scale,
 136                                   region, region);
 137 }
 138
 139 #define D2F(v) pixman_double_to_fixed((double)v)
 140
 141 static void
 142 transform_apply_viewport(pixman_transform_t *transform,
 143                          struct weston_surface *surface)
 144 {
 145         struct weston_buffer_viewport *vp = &surface->buffer_viewport;
 146         double src_width, src_height;
 147         double src_x, src_y;
 148
 149         if (vp->buffer.src_width == wl_fixed_from_int(-1)) {
 150                 if (vp->surface.width == -1)
 151                         return;
 152
 153                 src_x = 0.0;
 154                 src_y = 0.0;
 155                 src_width = surface->width_from_buffer;
 156                 src_height = surface->height_from_buffer;
 157         } else {
 158                 src_x = wl_fixed_to_double(vp->buffer.src_x);
 159                 src_y = wl_fixed_to_double(vp->buffer.src_y);
 160                 src_width = wl_fixed_to_double(vp->buffer.src_width);
 161                 src_height = wl_fixed_to_double(vp->buffer.src_height);
 162         }
 163
 164         pixman_transform_scale(transform, NULL,
 165                                D2F(src_width / surface->width),
 166                                D2F(src_height / surface->height));
 167         pixman_transform_translate(transform, NULL, D2F(src_x), D2F(src_y));
 168 }
 169
 170 static void
 171 repaint_region(struct weston_view *ev, struct weston_output *output,
 172                pixman_region32_t *region, pixman_region32_t *surf_region,
 173                pixman_op_t pixman_op)
 174 {
 175         struct pixman_renderer *pr =
 176                 (struct pixman_renderer *) output->compositor->renderer;
 177         struct pixman_surface_state *ps = get_surface_state(ev->surface);
 178         struct pixman_output_state *po = get_output_state(output);
 179         struct weston_buffer_viewport *vp = &ev->surface->buffer_viewport;
 180         pixman_region32_t final_region;
 181         float view_x, view_y;
 182         pixman_transform_t transform;
 183         pixman_fixed_t fw, fh;
 184         pixman_image_t *mask_image;
 185         pixman_color_t mask = { 0, };
 186
 187         /* The final region to be painted is the intersection of
 188          * 'region' and 'surf_region'. However, 'region' is in the global
 189          * coordinates, and 'surf_region' is in the surface-local
 190          * coordinates
 191          */
 192         pixman_region32_init(&final_region);
 193         if (surf_region) {
 194                 pixman_region32_copy(&final_region, surf_region);
 195
 196                 /* Convert from surface to global coordinates */
 197                 if (!ev->transform.enabled) {
 198                         pixman_region32_translate(&final_region, ev->geometry.x, ev->geometry.y);
 199                 } else {
 200                         weston_view_to_global_float(ev, 0, 0, &view_x, &view_y);
 201                         pixman_region32_translate(&final_region, (int)view_x, (int)view_y);
 202                 }
 203
 204                 /* We need to paint the intersection */
 205                 pixman_region32_intersect(&final_region, &final_region, region);
 206         } else {
 207                 /* If there is no surface region, just use the global region */
 208                 pixman_region32_copy(&final_region, region);
 209         }
 210
 211         /* Convert from global to output coord */
 212         region_global_to_output(output, &final_region);
 213
 214         /* And clip to it */
 215         pixman_image_set_clip_region32 (po->shadow_image, &final_region);
 216
 217         /* Set up the source transformation based on the surface
 218            position, the output position/transform/scale and the client
 219            specified buffer transform/scale */
 220         pixman_transform_init_identity(&transform);
 221         pixman_transform_scale(&transform, NULL,
 222                                pixman_double_to_fixed ((double)1.0/output->current_scale),
 223                                pixman_double_to_fixed ((double)1.0/output->current_scale));
 224
 225         fw = pixman_int_to_fixed(output->width);
 226         fh = pixman_int_to_fixed(output->height);
 227         switch (output->transform) {
 228         default:
 229         case WL_OUTPUT_TRANSFORM_NORMAL:
 230         case WL_OUTPUT_TRANSFORM_FLIPPED:
 231                 break;
 232         case WL_OUTPUT_TRANSFORM_90:
 233         case WL_OUTPUT_TRANSFORM_FLIPPED_90:
 234                 pixman_transform_rotate(&transform, NULL, 0, -pixman_fixed_1);
 235                 pixman_transform_translate(&transform, NULL, 0, fh);
 236                 break;
 237         case WL_OUTPUT_TRANSFORM_180:
 238         case WL_OUTPUT_TRANSFORM_FLIPPED_180:
 239                 pixman_transform_rotate(&transform, NULL, -pixman_fixed_1, 0);
 240                 pixman_transform_translate(&transform, NULL, fw, fh);
 241                 break;
 242         case WL_OUTPUT_TRANSFORM_270:
 243         case WL_OUTPUT_TRANSFORM_FLIPPED_270:
 244                 pixman_transform_rotate(&transform, NULL, 0, pixman_fixed_1);
 245                 pixman_transform_translate(&transform, NULL, fw, 0);
 246                 break;
 247         }
 248
 249         switch (output->transform) {
 250         case WL_OUTPUT_TRANSFORM_FLIPPED:
 251         case WL_OUTPUT_TRANSFORM_FLIPPED_90:
 252         case WL_OUTPUT_TRANSFORM_FLIPPED_180:
 253         case WL_OUTPUT_TRANSFORM_FLIPPED_270:
 254                 pixman_transform_scale(&transform, NULL,
 255                                        pixman_int_to_fixed (-1),
 256                                        pixman_int_to_fixed (1));
 257                 pixman_transform_translate(&transform, NULL, fw, 0);
 258                 break;
 259         }
 260
 261         pixman_transform_translate(&transform, NULL,
 262                                    pixman_double_to_fixed (output->x),
 263                                    pixman_double_to_fixed (output->y));
 264
 265         if (ev->transform.enabled) {
 266                 /* Pixman supports only 2D transform matrix, but Weston uses 3D,
 267                  * so we're omitting Z coordinate here
 268                  */
 269                 pixman_transform_t surface_transform = {{
 270                                 { D2F(ev->transform.matrix.d[0]),
 271                                   D2F(ev->transform.matrix.d[4]),
 272                                   D2F(ev->transform.matrix.d[12]),
 273                                 },
 274                                 { D2F(ev->transform.matrix.d[1]),
 275                                   D2F(ev->transform.matrix.d[5]),
 276                                   D2F(ev->transform.matrix.d[13]),
 277                                 },
 278                                 { D2F(ev->transform.matrix.d[3]),
 279                                   D2F(ev->transform.matrix.d[7]),
 280                                   D2F(ev->transform.matrix.d[15]),
 281                                 }
 282                         }};
 283
 284                 pixman_transform_invert(&surface_transform, &surface_transform);
 285                 pixman_transform_multiply (&transform, &surface_transform, &transform);
 286         } else {
 287                 pixman_transform_translate(&transform, NULL,
 288                                            pixman_double_to_fixed ((double)-ev->geometry.x),
 289                                            pixman_double_to_fixed ((double)-ev->geometry.y));
 290         }
 291
 292         transform_apply_viewport(&transform, ev->surface);
 293
 294         fw = pixman_int_to_fixed(ev->surface->width_from_buffer);
 295         fh = pixman_int_to_fixed(ev->surface->height_from_buffer);
 296
 297         switch (vp->buffer.transform) {
 298         case WL_OUTPUT_TRANSFORM_FLIPPED:
 299         case WL_OUTPUT_TRANSFORM_FLIPPED_90:
 300         case WL_OUTPUT_TRANSFORM_FLIPPED_180:
 301         case WL_OUTPUT_TRANSFORM_FLIPPED_270:
 302                 pixman_transform_scale(&transform, NULL,
 303                                        pixman_int_to_fixed (-1),
 304                                        pixman_int_to_fixed (1));
 305                 pixman_transform_translate(&transform, NULL, fw, 0);
 306                 break;
 307         }
 308
 309         switch (vp->buffer.transform) {
 310         default:
 311         case WL_OUTPUT_TRANSFORM_NORMAL:
 312         case WL_OUTPUT_TRANSFORM_FLIPPED:
 313                 break;
 314         case WL_OUTPUT_TRANSFORM_90:
 315         case WL_OUTPUT_TRANSFORM_FLIPPED_90:
 316                 pixman_transform_rotate(&transform, NULL, 0, pixman_fixed_1);
 317                 pixman_transform_translate(&transform, NULL, fh, 0);
 318                 break;
 319         case WL_OUTPUT_TRANSFORM_180:
 320         case WL_OUTPUT_TRANSFORM_FLIPPED_180:
 321                 pixman_transform_rotate(&transform, NULL, -pixman_fixed_1, 0);
 322                 pixman_transform_translate(&transform, NULL, fw, fh);
 323                 break;
 324         case WL_OUTPUT_TRANSFORM_270:
 325         case WL_OUTPUT_TRANSFORM_FLIPPED_270:
 326                 pixman_transform_rotate(&transform, NULL, 0, -pixman_fixed_1);
 327                 pixman_transform_translate(&transform, NULL, 0, fw);
 328                 break;
 329         }
 330
 331         pixman_transform_scale(&transform, NULL,
 332                                pixman_double_to_fixed(vp->buffer.scale),
 333                                pixman_double_to_fixed(vp->buffer.scale));
 334
 335         pixman_image_set_transform(ps->image, &transform);
 336
 337         if (ev->transform.enabled || output->current_scale != vp->buffer.scale)
 338                 pixman_image_set_filter(ps->image, PIXMAN_FILTER_BILINEAR, NULL, 0);
 339         else
 340                 pixman_image_set_filter(ps->image, PIXMAN_FILTER_NEAREST, NULL, 0);
 341
 342         if (ps->buffer_ref.buffer)
 343                 wl_shm_buffer_begin_access(ps->buffer_ref.buffer->shm_buffer);
 344
 345         if (ev->alpha < 1.0) {
 346                 mask.alpha = 0xffff * ev->alpha;
 347                 mask_image = pixman_image_create_solid_fill(&mask);
 348         } else {
 349                 mask_image = NULL;
 350         }
 351
 352         pixman_image_composite32(pixman_op,
 353                                  ps->image, /* src */
 354                                  mask_image, /* mask */
 355                                  po->shadow_image, /* dest */
 356                                  0, 0, /* src_x, src_y */
 357                                  0, 0, /* mask_x, mask_y */
 358                                  0, 0, /* dest_x, dest_y */
 359                                  pixman_image_get_width (po->shadow_image), /* width */
 360                                  pixman_image_get_height (po->shadow_image) /* height */);
 361
 362         if (mask_image)
 363                 pixman_image_unref(mask_image);
 364
 365         if (ps->buffer_ref.buffer)
 366                 wl_shm_buffer_end_access(ps->buffer_ref.buffer->shm_buffer);
 367
 368         if (pr->repaint_debug)
 369                 pixman_image_composite32(PIXMAN_OP_OVER,
 370                                          pr->debug_color, /* src */
 371                                          NULL /* mask */,
 372                                          po->shadow_image, /* dest */
 373                                          0, 0, /* src_x, src_y */
 374                                          0, 0, /* mask_x, mask_y */
 375                                          0, 0, /* dest_x, dest_y */
 376                                          pixman_image_get_width (po->shadow_image), /* width */
 377                                          pixman_image_get_height (po->shadow_image) /* height */);
 378
 379         pixman_image_set_clip_region32 (po->shadow_image, NULL);
 380
 381         pixman_region32_fini(&final_region);
 382 }
 383
 384 static void
 385 draw_view(struct weston_view *ev, struct weston_output *output,
 386           pixman_region32_t *damage) /* in global coordinates */
 387 {
 388         struct pixman_surface_state *ps = get_surface_state(ev->surface);
 389         /* repaint bounding region in global coordinates: */
 390         pixman_region32_t repaint;
 391         /* non-opaque region in surface coordinates: */
 392         pixman_region32_t surface_blend;
 393
 394         /* No buffer attached */
 395         if (!ps->image)
 396                 return;
 397
 398         pixman_region32_init(&repaint);
 399         pixman_region32_intersect(&repaint,
 400                                   &ev->transform.masked_boundingbox, damage);
 401         pixman_region32_subtract(&repaint, &repaint, &ev->clip);
 402
 403         if (!pixman_region32_not_empty(&repaint))
 404                 goto out;
 405
 406         if (output->zoom.active) {
 407                 weston_log("pixman renderer does not support zoom\n");
 408                 goto out;
 409         }
 410
 411         /* TODO: Implement repaint_region_complex() using pixman_composite_trapezoids() */
 412         if (ev->alpha != 1.0 ||
 413             (ev->transform.enabled &&
 414              ev->transform.matrix.type != WESTON_MATRIX_TRANSFORM_TRANSLATE)) {
 415                 repaint_region(ev, output, &repaint, NULL, PIXMAN_OP_OVER);
 416         } else {
 417                 /* blended region is whole surface minus opaque region: */
 418                 pixman_region32_init_rect(&surface_blend, 0, 0,
 419                                           ev->surface->width, ev->surface->height);
 420                 pixman_region32_subtract(&surface_blend, &surface_blend, &ev->surface->opaque);
 421
 422                 if (pixman_region32_not_empty(&ev->surface->opaque)) {
 423                         repaint_region(ev, output, &repaint, &ev->surface->opaque, PIXMAN_OP_SRC);
 424                 }
 425
 426                 if (pixman_region32_not_empty(&surface_blend)) {
 427                         repaint_region(ev, output, &repaint, &surface_blend, PIXMAN_OP_OVER);
 428                 }
 429                 pixman_region32_fini(&surface_blend);
 430         }
 431
 432
 433 out:
 434         pixman_region32_fini(&repaint);
 435 }
 436 static void
 437 repaint_surfaces(struct weston_output *output, pixman_region32_t *damage)
 438 {
 439         struct weston_compositor *compositor = output->compositor;
 440         struct weston_view *view;
 441
 442         wl_list_for_each_reverse(view, &compositor->view_list, link)
 443                 if (view->plane == &compositor->primary_plane)
 444                         draw_view(view, output, damage);
 445 }
 446
 447 static void
 448 copy_to_hw_buffer(struct weston_output *output, pixman_region32_t *region)
 449 {
 450         struct pixman_output_state *po = get_output_state(output);
 451         pixman_region32_t output_region;
 452
 453         pixman_region32_init(&output_region);
 454         pixman_region32_copy(&output_region, region);
 455
 456         region_global_to_output(output, &output_region);
 457
 458         pixman_image_set_clip_region32 (po->hw_buffer, &output_region);
 459
 460         pixman_image_composite32(PIXMAN_OP_SRC,
 461                                  po->shadow_image, /* src */
 462                                  NULL /* mask */,
 463                                  po->hw_buffer, /* dest */
 464                                  0, 0, /* src_x, src_y */
 465                                  0, 0, /* mask_x, mask_y */
 466                                  0, 0, /* dest_x, dest_y */
 467                                  pixman_image_get_width (po->hw_buffer), /* width */
 468                                  pixman_image_get_height (po->hw_buffer) /* height */);
 469
 470         pixman_image_set_clip_region32 (po->hw_buffer, NULL);
 471 }
 472
 473 static void
 474 pixman_renderer_repaint_output(struct weston_output *output,
 475                              pixman_region32_t *output_damage)
 476 {
 477         struct pixman_output_state *po = get_output_state(output);
 478
 479         if (!po->hw_buffer)
 480                 return;
 481
 482         repaint_surfaces(output, output_damage);
 483         copy_to_hw_buffer(output, output_damage);
 484
 485         pixman_region32_copy(&output->previous_damage, output_damage);
 486         wl_signal_emit(&output->frame_signal, output);
 487
 488         /* Actual flip should be done by caller */
 489 }
 490
 491 static void
 492 pixman_renderer_flush_damage(struct weston_surface *surface)
 493 {
 494         /* No-op for pixman renderer */
 495 }
 496
 497 static void
 498 buffer_state_handle_buffer_destroy(struct wl_listener *listener, void *data)
 499 {
 500         struct pixman_surface_state *ps;
 501
 502         ps = container_of(listener, struct pixman_surface_state,
 503                           buffer_destroy_listener);
 504
 505         if (ps->image) {
 506                 pixman_image_unref(ps->image);
 507                 ps->image = NULL;
 508         }
 509
 510         ps->buffer_destroy_listener.notify = NULL;
 511 }
 512
 513 static void
 514 pixman_renderer_attach(struct weston_surface *es, struct weston_buffer *buffer)
 515 {
 516         struct pixman_surface_state *ps = get_surface_state(es);
 517         struct wl_shm_buffer *shm_buffer;
 518         pixman_format_code_t pixman_format;
 519
 520         weston_buffer_reference(&ps->buffer_ref, buffer);
 521
 522         if (ps->buffer_destroy_listener.notify) {
 523                 wl_list_remove(&ps->buffer_destroy_listener.link);
 524                 ps->buffer_destroy_listener.notify = NULL;
 525         }
 526
 527         if (ps->image) {
 528                 pixman_image_unref(ps->image);
 529                 ps->image = NULL;
 530         }
 531
 532         if (!buffer)
 533                 return;
 534
 535         shm_buffer = wl_shm_buffer_get(buffer->resource);
 536
 537         if (! shm_buffer) {
 538                 weston_log("Pixman renderer supports only SHM buffers\n");
 539                 weston_buffer_reference(&ps->buffer_ref, NULL);
 540                 return;
 541         }
 542
 543         switch (wl_shm_buffer_get_format(shm_buffer)) {
 544         case WL_SHM_FORMAT_XRGB8888:
 545                 pixman_format = PIXMAN_x8r8g8b8;
 546                 break;
 547         case WL_SHM_FORMAT_ARGB8888:
 548                 pixman_format = PIXMAN_a8r8g8b8;
 549                 break;
 550         case WL_SHM_FORMAT_RGB565:
 551                 pixman_format = PIXMAN_r5g6b5;
 552                 break;
 553         default:
 554                 weston_log("Unsupported SHM buffer format\n");
 555                 weston_buffer_reference(&ps->buffer_ref, NULL);
 556                 return;
 557         break;
 558         }
 559
 560         buffer->shm_buffer = shm_buffer;
 561         buffer->width = wl_shm_buffer_get_width(shm_buffer);
 562         buffer->height = wl_shm_buffer_get_height(shm_buffer);
 563
 564         ps->image = pixman_image_create_bits(pixman_format,
 565                 buffer->width, buffer->height,
 566                 wl_shm_buffer_get_data(shm_buffer),
 567                 wl_shm_buffer_get_stride(shm_buffer));
 568
 569         ps->buffer_destroy_listener.notify =
 570                 buffer_state_handle_buffer_destroy;
 571         wl_signal_add(&buffer->destroy_signal,
 572                       &ps->buffer_destroy_listener);
 573 }
 574
 575 static void
 576 pixman_renderer_surface_state_destroy(struct pixman_surface_state *ps)
 577 {
 578         wl_list_remove(&ps->surface_destroy_listener.link);
 579         wl_list_remove(&ps->renderer_destroy_listener.link);
 580         if (ps->buffer_destroy_listener.notify) {
 581                 wl_list_remove(&ps->buffer_destroy_listener.link);
 582                 ps->buffer_destroy_listener.notify = NULL;
 583         }
 584
 585         ps->surface->renderer_state = NULL;
 586
 587         if (ps->image) {
 588                 pixman_image_unref(ps->image);
 589                 ps->image = NULL;
 590         }
 591         weston_buffer_reference(&ps->buffer_ref, NULL);
 592         free(ps);
 593 }
 594
 595 static void
 596 surface_state_handle_surface_destroy(struct wl_listener *listener, void *data)
 597 {
 598         struct pixman_surface_state *ps;
 599
 600         ps = container_of(listener, struct pixman_surface_state,
 601                           surface_destroy_listener);
 602
 603         pixman_renderer_surface_state_destroy(ps);
 604 }
 605
 606 static void
 607 surface_state_handle_renderer_destroy(struct wl_listener *listener, void *data)
 608 {
 609         struct pixman_surface_state *ps;
 610
 611         ps = container_of(listener, struct pixman_surface_state,
 612                           renderer_destroy_listener);
 613
 614         pixman_renderer_surface_state_destroy(ps);
 615 }
 616
 617 static int
 618 pixman_renderer_create_surface(struct weston_surface *surface)
 619 {
 620         struct pixman_surface_state *ps;
 621         struct pixman_renderer *pr = get_renderer(surface->compositor);
 622
 623         ps = calloc(1, sizeof *ps);
 624         if (!ps)
 625                 return -1;
 626
 627         surface->renderer_state = ps;
 628
 629         ps->surface = surface;
 630
 631         ps->surface_destroy_listener.notify =
 632                 surface_state_handle_surface_destroy;
 633         wl_signal_add(&surface->destroy_signal,
 634                       &ps->surface_destroy_listener);
 635
 636         ps->renderer_destroy_listener.notify =
 637                 surface_state_handle_renderer_destroy;
 638         wl_signal_add(&pr->destroy_signal,
 639                       &ps->renderer_destroy_listener);
 640
 641         return 0;
 642 }
 643
 644 static void
 645 pixman_renderer_surface_set_color(struct weston_surface *es,
 646                  float red, float green, float blue, float alpha)
 647 {
 648         struct pixman_surface_state *ps = get_surface_state(es);
 649         pixman_color_t color;
 650
 651         color.red = red * 0xffff;
 652         color.green = green * 0xffff;
 653         color.blue = blue * 0xffff;
 654         color.alpha = alpha * 0xffff;
 655
 656         if (ps->image) {
 657                 pixman_image_unref(ps->image);
 658                 ps->image = NULL;
 659         }
 660
 661         ps->image = pixman_image_create_solid_fill(&color);
 662 }
 663
 664 static void
 665 pixman_renderer_destroy(struct weston_compositor *ec)
 666 {
 667         struct pixman_renderer *pr = get_renderer(ec);
 668
 669         wl_signal_emit(&pr->destroy_signal, pr);
 670         weston_binding_destroy(pr->debug_binding);
 671         free(pr);
 672
 673         ec->renderer = NULL;
 674 }
 675
 676 static void
 677 debug_binding(struct weston_seat *seat, uint32_t time, uint32_t key,
 678               void *data)
 679 {
 680         struct weston_compositor *ec = data;
 681         struct pixman_renderer *pr = (struct pixman_renderer *) ec->renderer;
 682
 683         pr->repaint_debug ^= 1;
 684
 685         if (pr->repaint_debug) {
 686                 pixman_color_t red = {
 687                         0x3fff, 0x0000, 0x0000, 0x3fff
 688                 };
 689
 690                 pr->debug_color = pixman_image_create_solid_fill(&red);
 691         } else {
 692                 pixman_image_unref(pr->debug_color);
 693                 weston_compositor_damage_all(ec);
 694         }
 695 }
 696
 697 WL_EXPORT int
 698 pixman_renderer_init(struct weston_compositor *ec)
 699 {
 700         struct pixman_renderer *renderer;
 701
 702         renderer = calloc(1, sizeof *renderer);
 703         if (renderer == NULL)
 704                 return -1;
 705
 706         renderer->repaint_debug = 0;
 707         renderer->debug_color = NULL;
 708         renderer->base.read_pixels = pixman_renderer_read_pixels;
 709         renderer->base.repaint_output = pixman_renderer_repaint_output;
 710         renderer->base.flush_damage = pixman_renderer_flush_damage;
 711         renderer->base.attach = pixman_renderer_attach;
 712         renderer->base.surface_set_color = pixman_renderer_surface_set_color;
 713         renderer->base.destroy = pixman_renderer_destroy;
 714         ec->renderer = &renderer->base;
 715         ec->capabilities |= WESTON_CAP_ROTATION_ANY;
 716         ec->capabilities |= WESTON_CAP_CAPTURE_YFLIP;
 717
 718         renderer->debug_binding =
 719                 weston_compositor_add_debug_binding(ec, KEY_R,
 720                                                     debug_binding, ec);
 721
 722         wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_RGB565);
 723
 724         wl_signal_init(&renderer->destroy_signal);
 725
 726         return 0;
 727 }
 728
 729 WL_EXPORT void
 730 pixman_renderer_output_set_buffer(struct weston_output *output, pixman_image_t *buffer)
 731 {
 732         struct pixman_output_state *po = get_output_state(output);
 733
 734         if (po->hw_buffer)
 735                 pixman_image_unref(po->hw_buffer);
 736         po->hw_buffer = buffer;
 737
 738         if (po->hw_buffer) {
 739                 output->compositor->read_format = pixman_image_get_format(po->hw_buffer);
 740                 pixman_image_ref(po->hw_buffer);
 741         }
 742 }
 743
 744 WL_EXPORT int
 745 pixman_renderer_output_create(struct weston_output *output)
 746 {
 747         struct pixman_output_state *po = calloc(1, sizeof *po);
 748         int w, h;
 749
 750         if (!po)
 751                 return -1;
 752
 753         /* set shadow image transformation */
 754         w = output->current_mode->width;
 755         h = output->current_mode->height;
 756
 757         po->shadow_buffer = malloc(w * h * 4);
 758
 759         if (!po->shadow_buffer) {
 760                 free(po);
 761                 return -1;
 762         }
 763
 764         po->shadow_image =
 765                 pixman_image_create_bits(PIXMAN_x8r8g8b8, w, h,
 766                                          po->shadow_buffer, w * 4);
 767
 768         if (!po->shadow_image) {
 769                 free(po->shadow_buffer);
 770                 free(po);
 771                 return -1;
 772         }
 773
 774         output->renderer_state = po;
 775
 776         return 0;
 777 }
 778
 779 WL_EXPORT void
 780 pixman_renderer_output_destroy(struct weston_output *output)
 781 {
 782         struct pixman_output_state *po = get_output_state(output);
 783
 784         pixman_image_unref(po->shadow_image);
 785
 786         if (po->hw_buffer)
 787                 pixman_image_unref(po->hw_buffer);
 788
 789         po->shadow_image = NULL;
 790         po->hw_buffer = NULL;
 791
 792         free(po);
 793 }