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 int 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 int 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         return qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable),
  61                                           QXL_RELEASE_DRAWABLE, release, NULL);
  62 }
  63
  64 static void
  65 free_drawable(struct qxl_device *qdev, struct qxl_release *release)
  66 {
  67         qxl_release_free(qdev, release);
  68 }
  69
  70 /* release needs to be reserved at this point */
  71 static int
  72 make_drawable(struct qxl_device *qdev, int surface, uint8_t type,
  73               const struct qxl_rect *rect,
  74               struct qxl_release *release)
  75 {
  76         struct qxl_drawable *drawable;
  77         int i;
  78
  79         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
  80         if (!drawable)
  81                 return -ENOMEM;
  82
  83         drawable->type = type;
  84
  85         drawable->surface_id = surface;         /* Only primary for now */
  86         drawable->effect = QXL_EFFECT_OPAQUE;
  87         drawable->self_bitmap = 0;
  88         drawable->self_bitmap_area.top = 0;
  89         drawable->self_bitmap_area.left = 0;
  90         drawable->self_bitmap_area.bottom = 0;
  91         drawable->self_bitmap_area.right = 0;
  92         /* FIXME: add clipping */
  93         drawable->clip.type = SPICE_CLIP_TYPE_NONE;
  94
  95         /*
  96          * surfaces_dest[i] should apparently be filled out with the
  97          * surfaces that we depend on, and surface_rects should be
  98          * filled with the rectangles of those surfaces that we
  99          * are going to use.
 100          */
 101         for (i = 0; i < 3; ++i)
 102                 drawable->surfaces_dest[i] = -1;
 103
 104         if (rect)
 105                 drawable->bbox = *rect;
 106
 107         drawable->mm_time = qdev->rom->mm_clock;
 108         qxl_release_unmap(qdev, release, &drawable->release_info);
 109         return 0;
 110 }
 111
 112 static int alloc_palette_object(struct qxl_device *qdev,
 113                                 struct qxl_release *release,
 114                                 struct qxl_bo **palette_bo)
 115 {
 116         return qxl_alloc_bo_reserved(qdev, release,
 117                                      sizeof(struct qxl_palette) + sizeof(uint32_t) * 2,
 118                                      palette_bo);
 119 }
 120
 121 static int qxl_palette_create_1bit(struct qxl_bo *palette_bo,
 122                                    struct qxl_release *release,
 123                                    const struct qxl_fb_image *qxl_fb_image)
 124 {
 125         const struct fb_image *fb_image = &qxl_fb_image->fb_image;
 126         uint32_t visual = qxl_fb_image->visual;
 127         const uint32_t *pseudo_palette = qxl_fb_image->pseudo_palette;
 128         struct qxl_palette *pal;
 129         int ret;
 130         uint32_t fgcolor, bgcolor;
 131         static uint64_t unique; /* we make no attempt to actually set this
 132                                  * correctly globaly, since that would require
 133                                  * tracking all of our palettes. */
 134         ret = qxl_bo_kmap(palette_bo, (void **)&pal);
 135         if (ret)
 136                 return ret;
 137         pal->num_ents = 2;
 138         pal->unique = unique++;
 139         if (visual == FB_VISUAL_TRUECOLOR || visual == FB_VISUAL_DIRECTCOLOR) {
 140                 /* NB: this is the only used branch currently. */
 141                 fgcolor = pseudo_palette[fb_image->fg_color];
 142                 bgcolor = pseudo_palette[fb_image->bg_color];
 143         } else {
 144                 fgcolor = fb_image->fg_color;
 145                 bgcolor = fb_image->bg_color;
 146         }
 147         pal->ents[0] = bgcolor;
 148         pal->ents[1] = fgcolor;
 149         qxl_bo_kunmap(palette_bo);
 150         return 0;
 151 }
 152
 153 void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image,
 154                         int stride /* filled in if 0 */)
 155 {
 156         struct qxl_device *qdev = qxl_fb_image->qdev;
 157         struct qxl_drawable *drawable;
 158         struct qxl_rect rect;
 159         const struct fb_image *fb_image = &qxl_fb_image->fb_image;
 160         int x = fb_image->dx;
 161         int y = fb_image->dy;
 162         int width = fb_image->width;
 163         int height = fb_image->height;
 164         const char *src = fb_image->data;
 165         int depth = fb_image->depth;
 166         struct qxl_release *release;
 167         struct qxl_image *image;
 168         int ret;
 169         struct qxl_drm_image *dimage;
 170         struct qxl_bo *palette_bo = NULL;
 171
 172         if (stride == 0)
 173                 stride = depth * width / 8;
 174
 175         ret = alloc_drawable(qdev, &release);
 176         if (ret)
 177                 return;
 178
 179         ret = qxl_image_alloc_objects(qdev, release,
 180                                       &dimage,
 181                                       height, stride);
 182         if (ret)
 183                 goto out_free_drawable;
 184
 185         if (depth == 1) {
 186                 ret = alloc_palette_object(qdev, release, &palette_bo);
 187                 if (ret)
 188                         goto out_free_image;
 189         }
 190
 191         /* do a reservation run over all the objects we just allocated */
 192         ret = qxl_release_reserve_list(release, true);
 193         if (ret)
 194                 goto out_free_palette;
 195
 196         rect.left = x;
 197         rect.right = x + width;
 198         rect.top = y;
 199         rect.bottom = y + height;
 200
 201         ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &rect, release);
 202         if (ret) {
 203                 qxl_release_backoff_reserve_list(release);
 204                 goto out_free_palette;
 205         }
 206
 207         ret = qxl_image_init(qdev, release, dimage,
 208                              (const uint8_t *)src, 0, 0,
 209                              width, height, depth, stride);
 210         if (ret) {
 211                 qxl_release_backoff_reserve_list(release);
 212                 qxl_release_free(qdev, release);
 213                 return;
 214         }
 215
 216         if (depth == 1) {
 217                 void *ptr;
 218
 219                 ret = qxl_palette_create_1bit(palette_bo, release, qxl_fb_image);
 220
 221                 ptr = qxl_bo_kmap_atomic_page(qdev, dimage->bo, 0);
 222                 image = ptr;
 223                 image->u.bitmap.palette =
 224                         qxl_bo_physical_address(qdev, palette_bo, 0);
 225                 qxl_bo_kunmap_atomic_page(qdev, dimage->bo, ptr);
 226         }
 227
 228         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 229
 230         drawable->u.copy.src_area.top = 0;
 231         drawable->u.copy.src_area.bottom = height;
 232         drawable->u.copy.src_area.left = 0;
 233         drawable->u.copy.src_area.right = width;
 234
 235         drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
 236         drawable->u.copy.scale_mode = 0;
 237         drawable->u.copy.mask.flags = 0;
 238         drawable->u.copy.mask.pos.x = 0;
 239         drawable->u.copy.mask.pos.y = 0;
 240         drawable->u.copy.mask.bitmap = 0;
 241
 242         drawable->u.copy.src_bitmap =
 243                 qxl_bo_physical_address(qdev, dimage->bo, 0);
 244         qxl_release_unmap(qdev, release, &drawable->release_info);
 245
 246         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 247         qxl_release_fence_buffer_objects(release);
 248
 249 out_free_palette:
 250         qxl_bo_unref(&palette_bo);
 251 out_free_image:
 252         qxl_image_free_objects(qdev, dimage);
 253 out_free_drawable:
 254         if (ret)
 255                 free_drawable(qdev, release);
 256 }
 257
 258 /* push a draw command using the given clipping rectangles as
 259  * the sources from the shadow framebuffer.
 260  *
 261  * Right now implementing with a single draw and a clip list. Clip
 262  * lists are known to be a problem performance wise, this can be solved
 263  * by treating them differently in the server.
 264  */
 265 void qxl_draw_dirty_fb(struct qxl_device *qdev,
 266                        struct drm_framebuffer *fb,
 267                        struct qxl_bo *bo,
 268                        unsigned int flags, unsigned int color,
 269                        struct drm_clip_rect *clips,
 270                        unsigned int num_clips, int inc)
 271 {
 272         /*
 273          * TODO: if flags & DRM_MODE_FB_DIRTY_ANNOTATE_FILL then we should
 274          * send a fill command instead, much cheaper.
 275          *
 276          * See include/drm/drm_mode.h
 277          */
 278         struct drm_clip_rect *clips_ptr;
 279         int i;
 280         int left, right, top, bottom;
 281         int width, height;
 282         struct qxl_drawable *drawable;
 283         struct qxl_rect drawable_rect;
 284         struct qxl_rect *rects;
 285         int stride = fb->pitches[0];
 286         /* depth is not actually interesting, we don't mask with it */
 287         int depth = fb->format->cpp[0] * 8;
 288         uint8_t *surface_base;
 289         struct qxl_release *release;
 290         struct qxl_bo *clips_bo;
 291         struct qxl_drm_image *dimage;
 292         int ret;
 293
 294         ret = alloc_drawable(qdev, &release);
 295         if (ret)
 296                 return;
 297
 298         left = clips->x1;
 299         right = clips->x2;
 300         top = clips->y1;
 301         bottom = clips->y2;
 302
 303         /* skip the first clip rect */
 304         for (i = 1, clips_ptr = clips + inc;
 305              i < num_clips; i++, clips_ptr += inc) {
 306                 left = min_t(int, left, (int)clips_ptr->x1);
 307                 right = max_t(int, right, (int)clips_ptr->x2);
 308                 top = min_t(int, top, (int)clips_ptr->y1);
 309                 bottom = max_t(int, bottom, (int)clips_ptr->y2);
 310         }
 311
 312         width = right - left;
 313         height = bottom - top;
 314
 315         ret = alloc_clips(qdev, release, num_clips, &clips_bo);
 316         if (ret)
 317                 goto out_free_drawable;
 318
 319         ret = qxl_image_alloc_objects(qdev, release,
 320                                       &dimage,
 321                                       height, stride);
 322         if (ret)
 323                 goto out_free_clips;
 324
 325         /* do a reservation run over all the objects we just allocated */
 326         ret = qxl_release_reserve_list(release, true);
 327         if (ret)
 328                 goto out_free_image;
 329
 330         drawable_rect.left = left;
 331         drawable_rect.right = right;
 332         drawable_rect.top = top;
 333         drawable_rect.bottom = bottom;
 334
 335         ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect,
 336                             release);
 337         if (ret)
 338                 goto out_release_backoff;
 339
 340         ret = qxl_bo_kmap(bo, (void **)&surface_base);
 341         if (ret)
 342                 goto out_release_backoff;
 343
 344         ret = qxl_image_init(qdev, release, dimage, surface_base,
 345                              left, top, width, height, depth, stride);
 346         qxl_bo_kunmap(bo);
 347         if (ret)
 348                 goto out_release_backoff;
 349
 350         rects = drawable_set_clipping(qdev, num_clips, clips_bo);
 351         if (!rects)
 352                 goto out_release_backoff;
 353
 354         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 355
 356         drawable->clip.type = SPICE_CLIP_TYPE_RECTS;
 357         drawable->clip.data = qxl_bo_physical_address(qdev,
 358                                                       clips_bo, 0);
 359
 360         drawable->u.copy.src_area.top = 0;
 361         drawable->u.copy.src_area.bottom = height;
 362         drawable->u.copy.src_area.left = 0;
 363         drawable->u.copy.src_area.right = width;
 364
 365         drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
 366         drawable->u.copy.scale_mode = 0;
 367         drawable->u.copy.mask.flags = 0;
 368         drawable->u.copy.mask.pos.x = 0;
 369         drawable->u.copy.mask.pos.y = 0;
 370         drawable->u.copy.mask.bitmap = 0;
 371
 372         drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0);
 373         qxl_release_unmap(qdev, release, &drawable->release_info);
 374
 375         clips_ptr = clips;
 376         for (i = 0; i < num_clips; i++, clips_ptr += inc) {
 377                 rects[i].left   = clips_ptr->x1;
 378                 rects[i].right  = clips_ptr->x2;
 379                 rects[i].top    = clips_ptr->y1;
 380                 rects[i].bottom = clips_ptr->y2;
 381         }
 382         qxl_bo_kunmap(clips_bo);
 383
 384         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 385         qxl_release_fence_buffer_objects(release);
 386
 387 out_release_backoff:
 388         if (ret)
 389                 qxl_release_backoff_reserve_list(release);
 390 out_free_image:
 391         qxl_image_free_objects(qdev, dimage);
 392 out_free_clips:
 393         qxl_bo_unref(&clips_bo);
 394 out_free_drawable:
 395         /* only free drawable on error */
 396         if (ret)
 397                 free_drawable(qdev, release);
 398
 399 }
 400
 401 void qxl_draw_copyarea(struct qxl_device *qdev,
 402                        u32 width, u32 height,
 403                        u32 sx, u32 sy,
 404                        u32 dx, u32 dy)
 405 {
 406         struct qxl_drawable *drawable;
 407         struct qxl_rect rect;
 408         struct qxl_release *release;
 409         int ret;
 410
 411         ret = alloc_drawable(qdev, &release);
 412         if (ret)
 413                 return;
 414
 415         /* do a reservation run over all the objects we just allocated */
 416         ret = qxl_release_reserve_list(release, true);
 417         if (ret)
 418                 goto out_free_release;
 419
 420         rect.left = dx;
 421         rect.top = dy;
 422         rect.right = dx + width;
 423         rect.bottom = dy + height;
 424         ret = make_drawable(qdev, 0, QXL_COPY_BITS, &rect, release);
 425         if (ret) {
 426                 qxl_release_backoff_reserve_list(release);
 427                 goto out_free_release;
 428         }
 429
 430         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 431         drawable->u.copy_bits.src_pos.x = sx;
 432         drawable->u.copy_bits.src_pos.y = sy;
 433         qxl_release_unmap(qdev, release, &drawable->release_info);
 434
 435         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 436         qxl_release_fence_buffer_objects(release);
 437
 438 out_free_release:
 439         if (ret)
 440                 free_drawable(qdev, release);
 441 }
 442
 443 void qxl_draw_fill(struct qxl_draw_fill *qxl_draw_fill_rec)
 444 {
 445         struct qxl_device *qdev = qxl_draw_fill_rec->qdev;
 446         struct qxl_rect rect = qxl_draw_fill_rec->rect;
 447         uint32_t color = qxl_draw_fill_rec->color;
 448         uint16_t rop = qxl_draw_fill_rec->rop;
 449         struct qxl_drawable *drawable;
 450         struct qxl_release *release;
 451         int ret;
 452
 453         ret = alloc_drawable(qdev, &release);
 454         if (ret)
 455                 return;
 456
 457         /* do a reservation run over all the objects we just allocated */
 458         ret = qxl_release_reserve_list(release, true);
 459         if (ret)
 460                 goto out_free_release;
 461
 462         ret = make_drawable(qdev, 0, QXL_DRAW_FILL, &rect, release);
 463         if (ret) {
 464                 qxl_release_backoff_reserve_list(release);
 465                 goto out_free_release;
 466         }
 467
 468         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 469         drawable->u.fill.brush.type = SPICE_BRUSH_TYPE_SOLID;
 470         drawable->u.fill.brush.u.color = color;
 471         drawable->u.fill.rop_descriptor = rop;
 472         drawable->u.fill.mask.flags = 0;
 473         drawable->u.fill.mask.pos.x = 0;
 474         drawable->u.fill.mask.pos.y = 0;
 475         drawable->u.fill.mask.bitmap = 0;
 476
 477         qxl_release_unmap(qdev, release, &drawable->release_info);
 478
 479         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 480         qxl_release_fence_buffer_objects(release);
 481
 482 out_free_release:
 483         if (ret)
 484                 free_drawable(qdev, release);
 485 }