drivers/gpu/drm/qxl/qxl_draw.c

   1 /*
   2  * Copyright 2011 Red Hat, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
  19  * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  20  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  21  */
  22
  23 #include "qxl_drv.h"
  24 #include "qxl_object.h"
  25
  26 static int alloc_clips(struct qxl_device *qdev,
  27                        struct qxl_release *release,
  28                        unsigned num_clips,
  29                        struct qxl_bo **clips_bo)
  30 {
  31         int size = sizeof(struct qxl_clip_rects) + sizeof(struct qxl_rect) * num_clips;
  32
  33         return qxl_alloc_bo_reserved(qdev, release, size, clips_bo);
  34 }
  35
  36 /* returns a pointer to the already allocated qxl_rect array inside
  37  * the qxl_clip_rects. This is *not* the same as the memory allocated
  38  * on the device, it is offset to qxl_clip_rects.chunk.data */
  39 static struct qxl_rect *drawable_set_clipping(struct qxl_device *qdev,
  40                                               unsigned num_clips,
  41                                               struct qxl_bo *clips_bo)
  42 {
  43         struct qxl_clip_rects *dev_clips;
  44         int ret;
  45
  46         ret = qxl_bo_kmap(clips_bo, (void **)&dev_clips);
  47         if (ret) {
  48                 return NULL;
  49         }
  50         dev_clips->num_rects = num_clips;
  51         dev_clips->chunk.next_chunk = 0;
  52         dev_clips->chunk.prev_chunk = 0;
  53         dev_clips->chunk.data_size = sizeof(struct qxl_rect) * num_clips;
  54         return (struct qxl_rect *)dev_clips->chunk.data;
  55 }
  56
  57 static int
  58 alloc_drawable(struct qxl_device *qdev, struct qxl_release **release)
  59 {
  60         int ret;
  61         ret = qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable),
  62                                          QXL_RELEASE_DRAWABLE, release,
  63                                          NULL);
  64         return ret;
  65 }
  66
  67 static void
  68 free_drawable(struct qxl_device *qdev, struct qxl_release *release)
  69 {
  70         qxl_release_free(qdev, release);
  71 }
  72
  73 /* release needs to be reserved at this point */
  74 static int
  75 make_drawable(struct qxl_device *qdev, int surface, uint8_t type,
  76               const struct qxl_rect *rect,
  77               struct qxl_release *release)
  78 {
  79         struct qxl_drawable *drawable;
  80         int i;
  81
  82         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
  83         if (!drawable)
  84                 return -ENOMEM;
  85
  86         drawable->type = type;
  87
  88         drawable->surface_id = surface;         /* Only primary for now */
  89         drawable->effect = QXL_EFFECT_OPAQUE;
  90         drawable->self_bitmap = 0;
  91         drawable->self_bitmap_area.top = 0;
  92         drawable->self_bitmap_area.left = 0;
  93         drawable->self_bitmap_area.bottom = 0;
  94         drawable->self_bitmap_area.right = 0;
  95         /* FIXME: add clipping */
  96         drawable->clip.type = SPICE_CLIP_TYPE_NONE;
  97
  98         /*
  99          * surfaces_dest[i] should apparently be filled out with the
 100          * surfaces that we depend on, and surface_rects should be
 101          * filled with the rectangles of those surfaces that we
 102          * are going to use.
 103          */
 104         for (i = 0; i < 3; ++i)
 105                 drawable->surfaces_dest[i] = -1;
 106
 107         if (rect)
 108                 drawable->bbox = *rect;
 109
 110         drawable->mm_time = qdev->rom->mm_clock;
 111         qxl_release_unmap(qdev, release, &drawable->release_info);
 112         return 0;
 113 }
 114
 115 static int alloc_palette_object(struct qxl_device *qdev,
 116                                 struct qxl_release *release,
 117                                 struct qxl_bo **palette_bo)
 118 {
 119         return qxl_alloc_bo_reserved(qdev, release,
 120                                      sizeof(struct qxl_palette) + sizeof(uint32_t) * 2,
 121                                      palette_bo);
 122 }
 123
 124 static int qxl_palette_create_1bit(struct qxl_bo *palette_bo,
 125                                    struct qxl_release *release,
 126                                    const struct qxl_fb_image *qxl_fb_image)
 127 {
 128         const struct fb_image *fb_image = &qxl_fb_image->fb_image;
 129         uint32_t visual = qxl_fb_image->visual;
 130         const uint32_t *pseudo_palette = qxl_fb_image->pseudo_palette;
 131         struct qxl_palette *pal;
 132         int ret;
 133         uint32_t fgcolor, bgcolor;
 134         static uint64_t unique; /* we make no attempt to actually set this
 135                                  * correctly globaly, since that would require
 136                                  * tracking all of our palettes. */
 137         ret = qxl_bo_kmap(palette_bo, (void **)&pal);
 138         if (ret)
 139                 return ret;
 140         pal->num_ents = 2;
 141         pal->unique = unique++;
 142         if (visual == FB_VISUAL_TRUECOLOR || visual == FB_VISUAL_DIRECTCOLOR) {
 143                 /* NB: this is the only used branch currently. */
 144                 fgcolor = pseudo_palette[fb_image->fg_color];
 145                 bgcolor = pseudo_palette[fb_image->bg_color];
 146         } else {
 147                 fgcolor = fb_image->fg_color;
 148                 bgcolor = fb_image->bg_color;
 149         }
 150         pal->ents[0] = bgcolor;
 151         pal->ents[1] = fgcolor;
 152         qxl_bo_kunmap(palette_bo);
 153         return 0;
 154 }
 155
 156 void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image,
 157                         int stride /* filled in if 0 */)
 158 {
 159         struct qxl_device *qdev = qxl_fb_image->qdev;
 160         struct qxl_drawable *drawable;
 161         struct qxl_rect rect;
 162         const struct fb_image *fb_image = &qxl_fb_image->fb_image;
 163         int x = fb_image->dx;
 164         int y = fb_image->dy;
 165         int width = fb_image->width;
 166         int height = fb_image->height;
 167         const char *src = fb_image->data;
 168         int depth = fb_image->depth;
 169         struct qxl_release *release;
 170         struct qxl_image *image;
 171         int ret;
 172         struct qxl_drm_image *dimage;
 173         struct qxl_bo *palette_bo = NULL;
 174         if (stride == 0)
 175                 stride = depth * width / 8;
 176
 177         ret = alloc_drawable(qdev, &release);
 178         if (ret)
 179                 return;
 180
 181         ret = qxl_image_alloc_objects(qdev, release,
 182                                       &dimage,
 183                                       height, stride);
 184         if (ret)
 185                 goto out_free_drawable;
 186
 187         if (depth == 1) {
 188                 ret = alloc_palette_object(qdev, release, &palette_bo);
 189                 if (ret)
 190                         goto out_free_image;
 191         }
 192
 193         /* do a reservation run over all the objects we just allocated */
 194         ret = qxl_release_reserve_list(release, true);
 195         if (ret)
 196                 goto out_free_palette;
 197
 198         rect.left = x;
 199         rect.right = x + width;
 200         rect.top = y;
 201         rect.bottom = y + height;
 202
 203         ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &rect, release);
 204         if (ret) {
 205                 qxl_release_backoff_reserve_list(release);
 206                 goto out_free_palette;
 207         }
 208
 209         ret = qxl_image_init(qdev, release, dimage,
 210                              (const uint8_t *)src, 0, 0,
 211                              width, height, depth, stride);
 212         if (ret) {
 213                 qxl_release_backoff_reserve_list(release);
 214                 qxl_release_free(qdev, release);
 215                 return;
 216         }
 217
 218         if (depth == 1) {
 219                 void *ptr;
 220                 ret = qxl_palette_create_1bit(palette_bo, release, qxl_fb_image);
 221
 222                 ptr = qxl_bo_kmap_atomic_page(qdev, dimage->bo, 0);
 223                 image = ptr;
 224                 image->u.bitmap.palette =
 225                         qxl_bo_physical_address(qdev, palette_bo, 0);
 226                 qxl_bo_kunmap_atomic_page(qdev, dimage->bo, ptr);
 227         }
 228
 229         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 230
 231         drawable->u.copy.src_area.top = 0;
 232         drawable->u.copy.src_area.bottom = height;
 233         drawable->u.copy.src_area.left = 0;
 234         drawable->u.copy.src_area.right = width;
 235
 236         drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
 237         drawable->u.copy.scale_mode = 0;
 238         drawable->u.copy.mask.flags = 0;
 239         drawable->u.copy.mask.pos.x = 0;
 240         drawable->u.copy.mask.pos.y = 0;
 241         drawable->u.copy.mask.bitmap = 0;
 242
 243         drawable->u.copy.src_bitmap =
 244                 qxl_bo_physical_address(qdev, dimage->bo, 0);
 245         qxl_release_unmap(qdev, release, &drawable->release_info);
 246
 247         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 248         qxl_release_fence_buffer_objects(release);
 249
 250 out_free_palette:
 251         if (palette_bo)
 252                 qxl_bo_unref(&palette_bo);
 253 out_free_image:
 254         qxl_image_free_objects(qdev, dimage);
 255 out_free_drawable:
 256         if (ret)
 257                 free_drawable(qdev, release);
 258 }
 259
 260 /* push a draw command using the given clipping rectangles as
 261  * the sources from the shadow framebuffer.
 262  *
 263  * Right now implementing with a single draw and a clip list. Clip
 264  * lists are known to be a problem performance wise, this can be solved
 265  * by treating them differently in the server.
 266  */
 267 void qxl_draw_dirty_fb(struct qxl_device *qdev,
 268                        struct qxl_framebuffer *qxl_fb,
 269                        struct qxl_bo *bo,
 270                        unsigned flags, unsigned color,
 271                        struct drm_clip_rect *clips,
 272                        unsigned num_clips, int inc)
 273 {
 274         /*
 275          * TODO: if flags & DRM_MODE_FB_DIRTY_ANNOTATE_FILL then we should
 276          * send a fill command instead, much cheaper.
 277          *
 278          * See include/drm/drm_mode.h
 279          */
 280         struct drm_clip_rect *clips_ptr;
 281         int i;
 282         int left, right, top, bottom;
 283         int width, height;
 284         struct qxl_drawable *drawable;
 285         struct qxl_rect drawable_rect;
 286         struct qxl_rect *rects;
 287         int stride = qxl_fb->base.pitches[0];
 288         /* depth is not actually interesting, we don't mask with it */
 289         int depth = qxl_fb->base.bits_per_pixel;
 290         uint8_t *surface_base;
 291         struct qxl_release *release;
 292         struct qxl_bo *clips_bo;
 293         struct qxl_drm_image *dimage;
 294         int ret;
 295
 296         ret = alloc_drawable(qdev, &release);
 297         if (ret)
 298                 return;
 299
 300         left = clips->x1;
 301         right = clips->x2;
 302         top = clips->y1;
 303         bottom = clips->y2;
 304
 305         /* skip the first clip rect */
 306         for (i = 1, clips_ptr = clips + inc;
 307              i < num_clips; i++, clips_ptr += inc) {
 308                 left = min_t(int, left, (int)clips_ptr->x1);
 309                 right = max_t(int, right, (int)clips_ptr->x2);
 310                 top = min_t(int, top, (int)clips_ptr->y1);
 311                 bottom = max_t(int, bottom, (int)clips_ptr->y2);
 312         }
 313
 314         width = right - left;
 315         height = bottom - top;
 316
 317         ret = alloc_clips(qdev, release, num_clips, &clips_bo);
 318         if (ret)
 319                 goto out_free_drawable;
 320
 321         ret = qxl_image_alloc_objects(qdev, release,
 322                                       &dimage,
 323                                       height, stride);
 324         if (ret)
 325                 goto out_free_clips;
 326
 327         /* do a reservation run over all the objects we just allocated */
 328         ret = qxl_release_reserve_list(release, true);
 329         if (ret)
 330                 goto out_free_image;
 331
 332         drawable_rect.left = left;
 333         drawable_rect.right = right;
 334         drawable_rect.top = top;
 335         drawable_rect.bottom = bottom;
 336
 337         ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect,
 338                             release);
 339         if (ret)
 340                 goto out_release_backoff;
 341
 342         ret = qxl_bo_kmap(bo, (void **)&surface_base);
 343         if (ret)
 344                 goto out_release_backoff;
 345
 346
 347         ret = qxl_image_init(qdev, release, dimage, surface_base,
 348                              left, top, width, height, depth, stride);
 349         qxl_bo_kunmap(bo);
 350         if (ret)
 351                 goto out_release_backoff;
 352
 353         rects = drawable_set_clipping(qdev, num_clips, clips_bo);
 354         if (!rects)
 355                 goto out_release_backoff;
 356
 357         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 358
 359         drawable->clip.type = SPICE_CLIP_TYPE_RECTS;
 360         drawable->clip.data = qxl_bo_physical_address(qdev,
 361                                                       clips_bo, 0);
 362
 363         drawable->u.copy.src_area.top = 0;
 364         drawable->u.copy.src_area.bottom = height;
 365         drawable->u.copy.src_area.left = 0;
 366         drawable->u.copy.src_area.right = width;
 367
 368         drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
 369         drawable->u.copy.scale_mode = 0;
 370         drawable->u.copy.mask.flags = 0;
 371         drawable->u.copy.mask.pos.x = 0;
 372         drawable->u.copy.mask.pos.y = 0;
 373         drawable->u.copy.mask.bitmap = 0;
 374
 375         drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0);
 376         qxl_release_unmap(qdev, release, &drawable->release_info);
 377
 378         clips_ptr = clips;
 379         for (i = 0; i < num_clips; i++, clips_ptr += inc) {
 380                 rects[i].left   = clips_ptr->x1;
 381                 rects[i].right  = clips_ptr->x2;
 382                 rects[i].top    = clips_ptr->y1;
 383                 rects[i].bottom = clips_ptr->y2;
 384         }
 385         qxl_bo_kunmap(clips_bo);
 386
 387         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 388         qxl_release_fence_buffer_objects(release);
 389
 390 out_release_backoff:
 391         if (ret)
 392                 qxl_release_backoff_reserve_list(release);
 393 out_free_image:
 394         qxl_image_free_objects(qdev, dimage);
 395 out_free_clips:
 396         qxl_bo_unref(&clips_bo);
 397 out_free_drawable:
 398         /* only free drawable on error */
 399         if (ret)
 400                 free_drawable(qdev, release);
 401
 402 }
 403
 404 void qxl_draw_copyarea(struct qxl_device *qdev,
 405                        u32 width, u32 height,
 406                        u32 sx, u32 sy,
 407                        u32 dx, u32 dy)
 408 {
 409         struct qxl_drawable *drawable;
 410         struct qxl_rect rect;
 411         struct qxl_release *release;
 412         int ret;
 413
 414         ret = alloc_drawable(qdev, &release);
 415         if (ret)
 416                 return;
 417
 418         /* do a reservation run over all the objects we just allocated */
 419         ret = qxl_release_reserve_list(release, true);
 420         if (ret)
 421                 goto out_free_release;
 422
 423         rect.left = dx;
 424         rect.top = dy;
 425         rect.right = dx + width;
 426         rect.bottom = dy + height;
 427         ret = make_drawable(qdev, 0, QXL_COPY_BITS, &rect, release);
 428         if (ret) {
 429                 qxl_release_backoff_reserve_list(release);
 430                 goto out_free_release;
 431         }
 432
 433         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 434         drawable->u.copy_bits.src_pos.x = sx;
 435         drawable->u.copy_bits.src_pos.y = sy;
 436         qxl_release_unmap(qdev, release, &drawable->release_info);
 437
 438         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 439         qxl_release_fence_buffer_objects(release);
 440
 441 out_free_release:
 442         if (ret)
 443                 free_drawable(qdev, release);
 444 }
 445
 446 void qxl_draw_fill(struct qxl_draw_fill *qxl_draw_fill_rec)
 447 {
 448         struct qxl_device *qdev = qxl_draw_fill_rec->qdev;
 449         struct qxl_rect rect = qxl_draw_fill_rec->rect;
 450         uint32_t color = qxl_draw_fill_rec->color;
 451         uint16_t rop = qxl_draw_fill_rec->rop;
 452         struct qxl_drawable *drawable;
 453         struct qxl_release *release;
 454         int ret;
 455
 456         ret = alloc_drawable(qdev, &release);
 457         if (ret)
 458                 return;
 459
 460         /* do a reservation run over all the objects we just allocated */
 461         ret = qxl_release_reserve_list(release, true);
 462         if (ret)
 463                 goto out_free_release;
 464
 465         ret = make_drawable(qdev, 0, QXL_DRAW_FILL, &rect, release);
 466         if (ret) {
 467                 qxl_release_backoff_reserve_list(release);
 468                 goto out_free_release;
 469         }
 470
 471         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 472         drawable->u.fill.brush.type = SPICE_BRUSH_TYPE_SOLID;
 473         drawable->u.fill.brush.u.color = color;
 474         drawable->u.fill.rop_descriptor = rop;
 475         drawable->u.fill.mask.flags = 0;
 476         drawable->u.fill.mask.pos.x = 0;
 477         drawable->u.fill.mask.pos.y = 0;
 478         drawable->u.fill.mask.bitmap = 0;
 479
 480         qxl_release_unmap(qdev, release, &drawable->release_info);
 481
 482         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 483         qxl_release_fence_buffer_objects(release);
 484
 485 out_free_release:
 486         if (ret)
 487                 free_drawable(qdev, release);
 488 }