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                                               struct qxl_drawable *drawable,
  41                                               unsigned num_clips,
  42                                               struct qxl_bo *clips_bo)
  43 {
  44         struct qxl_clip_rects *dev_clips;
  45         int ret;
  46
  47         ret = qxl_bo_kmap(clips_bo, (void **)&dev_clips);
  48         if (ret) {
  49                 return NULL;
  50         }
  51         dev_clips->num_rects = num_clips;
  52         dev_clips->chunk.next_chunk = 0;
  53         dev_clips->chunk.prev_chunk = 0;
  54         dev_clips->chunk.data_size = sizeof(struct qxl_rect) * num_clips;
  55         return (struct qxl_rect *)dev_clips->chunk.data;
  56 }
  57
  58 static int
  59 alloc_drawable(struct qxl_device *qdev, struct qxl_release **release)
  60 {
  61         int ret;
  62         ret = qxl_alloc_release_reserved(qdev, sizeof(struct qxl_drawable),
  63                                          QXL_RELEASE_DRAWABLE, release,
  64                                          NULL);
  65         return ret;
  66 }
  67
  68 static void
  69 free_drawable(struct qxl_device *qdev, struct qxl_release *release)
  70 {
  71         qxl_release_free(qdev, release);
  72 }
  73
  74 /* release needs to be reserved at this point */
  75 static int
  76 make_drawable(struct qxl_device *qdev, int surface, uint8_t type,
  77               const struct qxl_rect *rect,
  78               struct qxl_release *release)
  79 {
  80         struct qxl_drawable *drawable;
  81         int i;
  82
  83         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
  84         if (!drawable)
  85                 return -ENOMEM;
  86
  87         drawable->type = type;
  88
  89         drawable->surface_id = surface;         /* Only primary for now */
  90         drawable->effect = QXL_EFFECT_OPAQUE;
  91         drawable->self_bitmap = 0;
  92         drawable->self_bitmap_area.top = 0;
  93         drawable->self_bitmap_area.left = 0;
  94         drawable->self_bitmap_area.bottom = 0;
  95         drawable->self_bitmap_area.right = 0;
  96         /* FIXME: add clipping */
  97         drawable->clip.type = SPICE_CLIP_TYPE_NONE;
  98
  99         /*
 100          * surfaces_dest[i] should apparently be filled out with the
 101          * surfaces that we depend on, and surface_rects should be
 102          * filled with the rectangles of those surfaces that we
 103          * are going to use.
 104          */
 105         for (i = 0; i < 3; ++i)
 106                 drawable->surfaces_dest[i] = -1;
 107
 108         if (rect)
 109                 drawable->bbox = *rect;
 110
 111         drawable->mm_time = qdev->rom->mm_clock;
 112         qxl_release_unmap(qdev, release, &drawable->release_info);
 113         return 0;
 114 }
 115
 116 static int alloc_palette_object(struct qxl_device *qdev,
 117                                 struct qxl_release *release,
 118                                 struct qxl_bo **palette_bo)
 119 {
 120         return qxl_alloc_bo_reserved(qdev, release,
 121                                      sizeof(struct qxl_palette) + sizeof(uint32_t) * 2,
 122                                      palette_bo);
 123 }
 124
 125 static int qxl_palette_create_1bit(struct qxl_bo *palette_bo,
 126                                    struct qxl_release *release,
 127                                    const struct qxl_fb_image *qxl_fb_image)
 128 {
 129         const struct fb_image *fb_image = &qxl_fb_image->fb_image;
 130         uint32_t visual = qxl_fb_image->visual;
 131         const uint32_t *pseudo_palette = qxl_fb_image->pseudo_palette;
 132         struct qxl_palette *pal;
 133         int ret;
 134         uint32_t fgcolor, bgcolor;
 135         static uint64_t unique; /* we make no attempt to actually set this
 136                                  * correctly globaly, since that would require
 137                                  * tracking all of our palettes. */
 138         ret = qxl_bo_kmap(palette_bo, (void **)&pal);
 139         if (ret)
 140                 return ret;
 141         pal->num_ents = 2;
 142         pal->unique = unique++;
 143         if (visual == FB_VISUAL_TRUECOLOR || visual == FB_VISUAL_DIRECTCOLOR) {
 144                 /* NB: this is the only used branch currently. */
 145                 fgcolor = pseudo_palette[fb_image->fg_color];
 146                 bgcolor = pseudo_palette[fb_image->bg_color];
 147         } else {
 148                 fgcolor = fb_image->fg_color;
 149                 bgcolor = fb_image->bg_color;
 150         }
 151         pal->ents[0] = bgcolor;
 152         pal->ents[1] = fgcolor;
 153         qxl_bo_kunmap(palette_bo);
 154         return 0;
 155 }
 156
 157 void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image,
 158                         int stride /* filled in if 0 */)
 159 {
 160         struct qxl_device *qdev = qxl_fb_image->qdev;
 161         struct qxl_drawable *drawable;
 162         struct qxl_rect rect;
 163         const struct fb_image *fb_image = &qxl_fb_image->fb_image;
 164         int x = fb_image->dx;
 165         int y = fb_image->dy;
 166         int width = fb_image->width;
 167         int height = fb_image->height;
 168         const char *src = fb_image->data;
 169         int depth = fb_image->depth;
 170         struct qxl_release *release;
 171         struct qxl_image *image;
 172         int ret;
 173         struct qxl_drm_image *dimage;
 174         struct qxl_bo *palette_bo = NULL;
 175         if (stride == 0)
 176                 stride = depth * width / 8;
 177
 178         ret = alloc_drawable(qdev, &release);
 179         if (ret)
 180                 return;
 181
 182         ret = qxl_image_alloc_objects(qdev, release,
 183                                       &dimage,
 184                                       height, stride);
 185         if (ret)
 186                 goto out_free_drawable;
 187
 188         if (depth == 1) {
 189                 ret = alloc_palette_object(qdev, release, &palette_bo);
 190                 if (ret)
 191                         goto out_free_image;
 192         }
 193
 194         /* do a reservation run over all the objects we just allocated */
 195         ret = qxl_release_reserve_list(release, true);
 196         if (ret)
 197                 goto out_free_palette;
 198
 199         rect.left = x;
 200         rect.right = x + width;
 201         rect.top = y;
 202         rect.bottom = y + height;
 203
 204         ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &rect, release);
 205         if (ret) {
 206                 qxl_release_backoff_reserve_list(release);
 207                 goto out_free_palette;
 208         }
 209
 210         ret = qxl_image_init(qdev, release, dimage,
 211                              (const uint8_t *)src, 0, 0,
 212                              width, height, depth, stride);
 213         if (ret) {
 214                 qxl_release_backoff_reserve_list(release);
 215                 qxl_release_free(qdev, release);
 216                 return;
 217         }
 218
 219         if (depth == 1) {
 220                 void *ptr;
 221                 ret = qxl_palette_create_1bit(palette_bo, release, qxl_fb_image);
 222
 223                 ptr = qxl_bo_kmap_atomic_page(qdev, dimage->bo, 0);
 224                 image = ptr;
 225                 image->u.bitmap.palette =
 226                         qxl_bo_physical_address(qdev, palette_bo, 0);
 227                 qxl_bo_kunmap_atomic_page(qdev, dimage->bo, ptr);
 228         }
 229
 230         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 231
 232         drawable->u.copy.src_area.top = 0;
 233         drawable->u.copy.src_area.bottom = height;
 234         drawable->u.copy.src_area.left = 0;
 235         drawable->u.copy.src_area.right = width;
 236
 237         drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
 238         drawable->u.copy.scale_mode = 0;
 239         drawable->u.copy.mask.flags = 0;
 240         drawable->u.copy.mask.pos.x = 0;
 241         drawable->u.copy.mask.pos.y = 0;
 242         drawable->u.copy.mask.bitmap = 0;
 243
 244         drawable->u.copy.src_bitmap =
 245                 qxl_bo_physical_address(qdev, dimage->bo, 0);
 246         qxl_release_unmap(qdev, release, &drawable->release_info);
 247
 248         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 249         qxl_release_fence_buffer_objects(release);
 250
 251 out_free_palette:
 252         if (palette_bo)
 253                 qxl_bo_unref(&palette_bo);
 254 out_free_image:
 255         qxl_image_free_objects(qdev, dimage);
 256 out_free_drawable:
 257         if (ret)
 258                 free_drawable(qdev, release);
 259 }
 260
 261 /* push a draw command using the given clipping rectangles as
 262  * the sources from the shadow framebuffer.
 263  *
 264  * Right now implementing with a single draw and a clip list. Clip
 265  * lists are known to be a problem performance wise, this can be solved
 266  * by treating them differently in the server.
 267  */
 268 void qxl_draw_dirty_fb(struct qxl_device *qdev,
 269                        struct qxl_framebuffer *qxl_fb,
 270                        struct qxl_bo *bo,
 271                        unsigned flags, unsigned color,
 272                        struct drm_clip_rect *clips,
 273                        unsigned num_clips, int inc)
 274 {
 275         /*
 276          * TODO: if flags & DRM_MODE_FB_DIRTY_ANNOTATE_FILL then we should
 277          * send a fill command instead, much cheaper.
 278          *
 279          * See include/drm/drm_mode.h
 280          */
 281         struct drm_clip_rect *clips_ptr;
 282         int i;
 283         int left, right, top, bottom;
 284         int width, height;
 285         struct qxl_drawable *drawable;
 286         struct qxl_rect drawable_rect;
 287         struct qxl_rect *rects;
 288         int stride = qxl_fb->base.pitches[0];
 289         /* depth is not actually interesting, we don't mask with it */
 290         int depth = qxl_fb->base.bits_per_pixel;
 291         uint8_t *surface_base;
 292         struct qxl_release *release;
 293         struct qxl_bo *clips_bo;
 294         struct qxl_drm_image *dimage;
 295         int ret;
 296
 297         ret = alloc_drawable(qdev, &release);
 298         if (ret)
 299                 return;
 300
 301         left = clips->x1;
 302         right = clips->x2;
 303         top = clips->y1;
 304         bottom = clips->y2;
 305
 306         /* skip the first clip rect */
 307         for (i = 1, clips_ptr = clips + inc;
 308              i < num_clips; i++, clips_ptr += inc) {
 309                 left = min_t(int, left, (int)clips_ptr->x1);
 310                 right = max_t(int, right, (int)clips_ptr->x2);
 311                 top = min_t(int, top, (int)clips_ptr->y1);
 312                 bottom = max_t(int, bottom, (int)clips_ptr->y2);
 313         }
 314
 315         width = right - left;
 316         height = bottom - top;
 317
 318         ret = alloc_clips(qdev, release, num_clips, &clips_bo);
 319         if (ret)
 320                 goto out_free_drawable;
 321
 322         ret = qxl_image_alloc_objects(qdev, release,
 323                                       &dimage,
 324                                       height, stride);
 325         if (ret)
 326                 goto out_free_clips;
 327
 328         /* do a reservation run over all the objects we just allocated */
 329         ret = qxl_release_reserve_list(release, true);
 330         if (ret)
 331                 goto out_free_image;
 332
 333         drawable_rect.left = left;
 334         drawable_rect.right = right;
 335         drawable_rect.top = top;
 336         drawable_rect.bottom = bottom;
 337
 338         ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect,
 339                             release);
 340         if (ret)
 341                 goto out_release_backoff;
 342
 343         ret = qxl_bo_kmap(bo, (void **)&surface_base);
 344         if (ret)
 345                 goto out_release_backoff;
 346
 347
 348         ret = qxl_image_init(qdev, release, dimage, surface_base,
 349                              left, top, width, height, depth, stride);
 350         qxl_bo_kunmap(bo);
 351         if (ret)
 352                 goto out_release_backoff;
 353
 354         rects = drawable_set_clipping(qdev, drawable, num_clips, clips_bo);
 355         if (!rects)
 356                 goto out_release_backoff;
 357
 358         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 359
 360         drawable->clip.type = SPICE_CLIP_TYPE_RECTS;
 361         drawable->clip.data = qxl_bo_physical_address(qdev,
 362                                                       clips_bo, 0);
 363
 364         drawable->u.copy.src_area.top = 0;
 365         drawable->u.copy.src_area.bottom = height;
 366         drawable->u.copy.src_area.left = 0;
 367         drawable->u.copy.src_area.right = width;
 368
 369         drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT;
 370         drawable->u.copy.scale_mode = 0;
 371         drawable->u.copy.mask.flags = 0;
 372         drawable->u.copy.mask.pos.x = 0;
 373         drawable->u.copy.mask.pos.y = 0;
 374         drawable->u.copy.mask.bitmap = 0;
 375
 376         drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0);
 377         qxl_release_unmap(qdev, release, &drawable->release_info);
 378
 379         clips_ptr = clips;
 380         for (i = 0; i < num_clips; i++, clips_ptr += inc) {
 381                 rects[i].left   = clips_ptr->x1;
 382                 rects[i].right  = clips_ptr->x2;
 383                 rects[i].top    = clips_ptr->y1;
 384                 rects[i].bottom = clips_ptr->y2;
 385         }
 386         qxl_bo_kunmap(clips_bo);
 387
 388         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 389         qxl_release_fence_buffer_objects(release);
 390
 391 out_release_backoff:
 392         if (ret)
 393                 qxl_release_backoff_reserve_list(release);
 394 out_free_image:
 395         qxl_image_free_objects(qdev, dimage);
 396 out_free_clips:
 397         qxl_bo_unref(&clips_bo);
 398 out_free_drawable:
 399         /* only free drawable on error */
 400         if (ret)
 401                 free_drawable(qdev, release);
 402
 403 }
 404
 405 void qxl_draw_copyarea(struct qxl_device *qdev,
 406                        u32 width, u32 height,
 407                        u32 sx, u32 sy,
 408                        u32 dx, u32 dy)
 409 {
 410         struct qxl_drawable *drawable;
 411         struct qxl_rect rect;
 412         struct qxl_release *release;
 413         int ret;
 414
 415         ret = alloc_drawable(qdev, &release);
 416         if (ret)
 417                 return;
 418
 419         /* do a reservation run over all the objects we just allocated */
 420         ret = qxl_release_reserve_list(release, true);
 421         if (ret)
 422                 goto out_free_release;
 423
 424         rect.left = dx;
 425         rect.top = dy;
 426         rect.right = dx + width;
 427         rect.bottom = dy + height;
 428         ret = make_drawable(qdev, 0, QXL_COPY_BITS, &rect, release);
 429         if (ret) {
 430                 qxl_release_backoff_reserve_list(release);
 431                 goto out_free_release;
 432         }
 433
 434         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 435         drawable->u.copy_bits.src_pos.x = sx;
 436         drawable->u.copy_bits.src_pos.y = sy;
 437         qxl_release_unmap(qdev, release, &drawable->release_info);
 438
 439         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 440         qxl_release_fence_buffer_objects(release);
 441
 442 out_free_release:
 443         if (ret)
 444                 free_drawable(qdev, release);
 445 }
 446
 447 void qxl_draw_fill(struct qxl_draw_fill *qxl_draw_fill_rec)
 448 {
 449         struct qxl_device *qdev = qxl_draw_fill_rec->qdev;
 450         struct qxl_rect rect = qxl_draw_fill_rec->rect;
 451         uint32_t color = qxl_draw_fill_rec->color;
 452         uint16_t rop = qxl_draw_fill_rec->rop;
 453         struct qxl_drawable *drawable;
 454         struct qxl_release *release;
 455         int ret;
 456
 457         ret = alloc_drawable(qdev, &release);
 458         if (ret)
 459                 return;
 460
 461         /* do a reservation run over all the objects we just allocated */
 462         ret = qxl_release_reserve_list(release, true);
 463         if (ret)
 464                 goto out_free_release;
 465
 466         ret = make_drawable(qdev, 0, QXL_DRAW_FILL, &rect, release);
 467         if (ret) {
 468                 qxl_release_backoff_reserve_list(release);
 469                 goto out_free_release;
 470         }
 471
 472         drawable = (struct qxl_drawable *)qxl_release_map(qdev, release);
 473         drawable->u.fill.brush.type = SPICE_BRUSH_TYPE_SOLID;
 474         drawable->u.fill.brush.u.color = color;
 475         drawable->u.fill.rop_descriptor = rop;
 476         drawable->u.fill.mask.flags = 0;
 477         drawable->u.fill.mask.pos.x = 0;
 478         drawable->u.fill.mask.pos.y = 0;
 479         drawable->u.fill.mask.bitmap = 0;
 480
 481         qxl_release_unmap(qdev, release, &drawable->release_info);
 482
 483         qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false);
 484         qxl_release_fence_buffer_objects(release);
 485
 486 out_free_release:
 487         if (ret)
 488                 free_drawable(qdev, release);
 489 }