src/gallium/drivers/softpipe/sp_video_context.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2009 Younes Manton.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 #include "util/u_inlines.h"
  29 #include "util/u_memory.h"
  30
  31 #include "sp_video_context.h"
  32 #include <util/u_inlines.h>
  33 #include <util/u_memory.h>
  34 #include <util/u_keymap.h>
  35 #include <util/u_rect.h>
  36 #include <util/u_video.h>
  37 #include <util/u_surface.h>
  38 #include "sp_public.h"
  39 #include "sp_texture.h"
  40
  41 #define NUM_BUFFERS 2
  42
  43 static void
  44 flush_buffer(struct sp_mpeg12_context *ctx)
  45 {
  46    assert(ctx);
  47
  48    if(ctx->mc_buffer != NULL) {
  49
  50       vl_mpeg12_mc_unmap_buffer(&ctx->mc_renderer, ctx->mc_buffer);
  51       vl_mpeg12_mc_renderer_flush(&ctx->mc_renderer, ctx->mc_buffer);
  52
  53       ctx->mc_buffer = NULL;
  54    }
  55 }
  56
  57 static void
  58 rotate_buffer(struct sp_mpeg12_context *ctx)
  59 {
  60    static unsigned key = 0;
  61    struct vl_mpeg12_mc_buffer *buffer;
  62
  63    assert(ctx);
  64
  65    flush_buffer(ctx);
  66
  67    buffer = (struct vl_mpeg12_mc_buffer*)util_keymap_lookup(ctx->buffer_map, &key);
  68    if (!buffer) {
  69       boolean added_to_map;
  70
  71       buffer = CALLOC_STRUCT(vl_mpeg12_mc_buffer);
  72       if (buffer == NULL)
  73          return;
  74
  75       if(!vl_mpeg12_mc_init_buffer(&ctx->mc_renderer, buffer)) {
  76          FREE(buffer);
  77          return;
  78       }
  79
  80       added_to_map = util_keymap_insert(ctx->buffer_map, &key, buffer, ctx);
  81       assert(added_to_map);
  82    }
  83    ++key;
  84    key %= NUM_BUFFERS;
  85    ctx->mc_buffer = buffer;
  86
  87    vl_mpeg12_mc_map_buffer(&ctx->mc_renderer, ctx->mc_buffer);
  88 }
  89
  90 static void
  91 delete_buffer(const struct keymap *map,
  92               const void *key, void *data,
  93               void *user)
  94 {
  95    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)user;
  96    struct vl_mpeg12_mc_buffer *buf = (struct vl_mpeg12_mc_buffer*)data;
  97
  98    assert(map);
  99    assert(key);
 100    assert(data);
 101    assert(user);
 102
 103    vl_mpeg12_mc_cleanup_buffer(&ctx->mc_renderer, buf);
 104 }
 105
 106 static void
 107 sp_mpeg12_destroy(struct pipe_video_context *vpipe)
 108 {
 109    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 110
 111    assert(vpipe);
 112
 113    flush_buffer(ctx);
 114
 115    /* Asserted in softpipe_delete_fs_state() for some reason */
 116    ctx->pipe->bind_vs_state(ctx->pipe, NULL);
 117    ctx->pipe->bind_fs_state(ctx->pipe, NULL);
 118
 119    ctx->pipe->delete_blend_state(ctx->pipe, ctx->blend);
 120    ctx->pipe->delete_rasterizer_state(ctx->pipe, ctx->rast);
 121    ctx->pipe->delete_depth_stencil_alpha_state(ctx->pipe, ctx->dsa);
 122
 123    pipe_surface_reference(&ctx->decode_target, NULL);
 124    vl_compositor_cleanup(&ctx->compositor);
 125    util_delete_keymap(ctx->buffer_map, ctx);
 126    vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
 127    ctx->pipe->destroy(ctx->pipe);
 128
 129    FREE(ctx);
 130 }
 131
 132 static int
 133 sp_mpeg12_get_param(struct pipe_video_context *vpipe, int param)
 134 {
 135    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 136
 137    assert(vpipe);
 138
 139    switch (param) {
 140       case PIPE_CAP_NPOT_TEXTURES:
 141          /* XXX: Temporary; not all paths are NPOT-tested */
 142 #if 0
 143          return ctx->pipe->screen->get_param(ctx->pipe->screen, param);
 144 #endif
 145          return FALSE;
 146       case PIPE_CAP_DECODE_TARGET_PREFERRED_FORMAT:
 147          return ctx->decode_format;
 148       default:
 149       {
 150          debug_printf("Softpipe: Unknown PIPE_CAP %d\n", param);
 151          return 0;
 152       }
 153    }
 154 }
 155
 156 static struct pipe_surface *
 157 sp_mpeg12_create_surface(struct pipe_video_context *vpipe,
 158                          struct pipe_resource *resource,
 159                          const struct pipe_surface *templat)
 160 {
 161    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 162
 163    assert(vpipe);
 164
 165    return ctx->pipe->create_surface(ctx->pipe, resource, templat);
 166 }
 167
 168 static boolean
 169 sp_mpeg12_is_format_supported(struct pipe_video_context *vpipe,
 170                               enum pipe_format format,
 171                               unsigned usage,
 172                               unsigned geom)
 173 {
 174    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 175
 176    assert(vpipe);
 177
 178    /* XXX: Temporary; not all paths are NPOT-tested */
 179    if (geom & PIPE_TEXTURE_GEOM_NON_POWER_OF_TWO)
 180       return FALSE;
 181
 182    return ctx->pipe->screen->is_format_supported(ctx->pipe->screen, format, PIPE_TEXTURE_2D,
 183                                                  0, usage, geom);
 184 }
 185
 186 static void
 187 sp_mpeg12_decode_macroblocks(struct pipe_video_context *vpipe,
 188                              struct pipe_surface *past,
 189                              struct pipe_surface *future,
 190                              unsigned num_macroblocks,
 191                              struct pipe_macroblock *macroblocks,
 192                              struct pipe_fence_handle **fence)
 193 {
 194    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 195    struct pipe_mpeg12_macroblock *mpeg12_macroblocks = (struct pipe_mpeg12_macroblock*)macroblocks;
 196
 197    assert(vpipe);
 198    assert(num_macroblocks);
 199    assert(macroblocks);
 200    assert(macroblocks->codec == PIPE_VIDEO_CODEC_MPEG12);
 201    assert(ctx->decode_target);
 202    assert(ctx->mc_buffer);
 203
 204    vl_mpeg12_mc_renderer_render_macroblocks(&ctx->mc_renderer,
 205                                             ctx->mc_buffer,
 206                                             ctx->decode_target,
 207                                             past, future, num_macroblocks,
 208                                             mpeg12_macroblocks, fence);
 209 }
 210
 211 static void
 212 sp_mpeg12_surface_fill(struct pipe_video_context *vpipe,
 213                        struct pipe_surface *dst,
 214                        unsigned dstx, unsigned dsty,
 215                        unsigned width, unsigned height,
 216                        unsigned value)
 217 {
 218    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 219    float rgba[4] = { 0, 0, 0, 0 };
 220
 221    assert(vpipe);
 222    assert(dst);
 223
 224    if (ctx->pipe->clear_render_target)
 225       ctx->pipe->clear_render_target(ctx->pipe, dst, rgba, dstx, dsty, width, height);
 226    else
 227       util_clear_render_target(ctx->pipe, dst, rgba, dstx, dsty, width, height);
 228 }
 229
 230 static void
 231 sp_mpeg12_surface_copy(struct pipe_video_context *vpipe,
 232                        struct pipe_surface *dst,
 233                        unsigned dstx, unsigned dsty,
 234                        struct pipe_surface *src,
 235                        unsigned srcx, unsigned srcy,
 236                        unsigned width, unsigned height)
 237 {
 238    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 239
 240    assert(vpipe);
 241    assert(dst);
 242
 243    struct pipe_box box;
 244    box.x = srcx;
 245    box.y = srcy;
 246    box.z = 0;
 247    box.width = width;
 248    box.height = height;
 249
 250    if (ctx->pipe->resource_copy_region)
 251       ctx->pipe->resource_copy_region(ctx->pipe, dst->texture, dst->u.tex.level,
 252                                       dstx, dsty, dst->u.tex.first_layer,
 253                                       src->texture, src->u.tex.level, &box);
 254    else
 255       util_resource_copy_region(ctx->pipe, dst->texture, dst->u.tex.level,
 256                                 dstx, dsty, dst->u.tex.first_layer,
 257                                 src->texture, src->u.tex.level, &box);
 258 }
 259
 260 static struct pipe_transfer*
 261 sp_mpeg12_get_transfer(struct pipe_video_context *vpipe,
 262                        struct pipe_resource *resource,
 263                        unsigned level,
 264                        unsigned usage,  /* a combination of PIPE_TRANSFER_x */
 265                        const struct pipe_box *box)
 266 {
 267    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 268
 269    assert(vpipe);
 270    assert(resource);
 271    assert(box);
 272
 273    return ctx->pipe->get_transfer(ctx->pipe, resource, level, usage, box);
 274 }
 275
 276 static void
 277 sp_mpeg12_transfer_destroy(struct pipe_video_context *vpipe,
 278                            struct pipe_transfer *transfer)
 279 {
 280    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 281
 282    assert(vpipe);
 283    assert(transfer);
 284
 285    ctx->pipe->transfer_destroy(ctx->pipe, transfer);
 286 }
 287
 288 static void*
 289 sp_mpeg12_transfer_map(struct pipe_video_context *vpipe,
 290                        struct pipe_transfer *transfer)
 291 {
 292    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 293
 294    assert(vpipe);
 295    assert(transfer);
 296
 297    return ctx->pipe->transfer_map(ctx->pipe, transfer);
 298 }
 299
 300 static void
 301 sp_mpeg12_transfer_flush_region(struct pipe_video_context *vpipe,
 302                                 struct pipe_transfer *transfer,
 303                                 const struct pipe_box *box)
 304 {
 305    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 306
 307    assert(vpipe);
 308    assert(transfer);
 309    assert(box);
 310
 311    ctx->pipe->transfer_flush_region(ctx->pipe, transfer, box);
 312 }
 313
 314 static void
 315 sp_mpeg12_transfer_unmap(struct pipe_video_context *vpipe,
 316                          struct pipe_transfer *transfer)
 317 {
 318    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 319
 320    assert(vpipe);
 321    assert(transfer);
 322
 323    ctx->pipe->transfer_unmap(ctx->pipe, transfer);
 324 }
 325
 326 static void
 327 sp_mpeg12_transfer_inline_write(struct pipe_video_context *vpipe,
 328                                 struct pipe_resource *resource,
 329                                 unsigned level,
 330                                 unsigned usage, /* a combination of PIPE_TRANSFER_x */
 331                                 const struct pipe_box *box,
 332                                 const void *data,
 333                                 unsigned stride,
 334                                 unsigned slice_stride)
 335 {
 336    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 337
 338    assert(vpipe);
 339    assert(resource);
 340    assert(box);
 341    assert(data);
 342    assert(ctx->pipe->transfer_inline_write);
 343
 344    ctx->pipe->transfer_inline_write(ctx->pipe, resource, level, usage,
 345                                     box, data, stride, slice_stride);
 346 }
 347
 348 static void
 349 sp_mpeg12_render_picture(struct pipe_video_context     *vpipe,
 350                          struct pipe_surface           *src_surface,
 351                          enum pipe_mpeg12_picture_type picture_type,
 352                          /*unsigned                    num_past_surfaces,
 353                          struct pipe_surface           *past_surfaces,
 354                          unsigned                      num_future_surfaces,
 355                          struct pipe_surface           *future_surfaces,*/
 356                          struct pipe_video_rect        *src_area,
 357                          struct pipe_surface           *dst_surface,
 358                          struct pipe_video_rect        *dst_area,
 359                          struct pipe_fence_handle      **fence)
 360 {
 361    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 362
 363    assert(vpipe);
 364    assert(src_surface);
 365    assert(src_area);
 366    assert(dst_surface);
 367    assert(dst_area);
 368
 369    flush_buffer(ctx);
 370
 371    vl_compositor_render(&ctx->compositor, src_surface,
 372                         picture_type, src_area, dst_surface, dst_area, fence);
 373 }
 374
 375 static void
 376 sp_mpeg12_set_picture_background(struct pipe_video_context *vpipe,
 377                                   struct pipe_surface *bg,
 378                                   struct pipe_video_rect *bg_src_rect)
 379 {
 380    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 381
 382    assert(vpipe);
 383    assert(bg);
 384    assert(bg_src_rect);
 385
 386    vl_compositor_set_background(&ctx->compositor, bg, bg_src_rect);
 387 }
 388
 389 static void
 390 sp_mpeg12_set_picture_layers(struct pipe_video_context *vpipe,
 391                              struct pipe_surface *layers[],
 392                              struct pipe_video_rect *src_rects[],
 393                              struct pipe_video_rect *dst_rects[],
 394                              unsigned num_layers)
 395 {
 396    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 397
 398    assert(vpipe);
 399    assert((layers && src_rects && dst_rects) ||
 400           (!layers && !src_rects && !dst_rects));
 401
 402    vl_compositor_set_layers(&ctx->compositor, layers, src_rects, dst_rects, num_layers);
 403 }
 404
 405 static void
 406 sp_mpeg12_set_decode_target(struct pipe_video_context *vpipe,
 407                             struct pipe_surface *dt)
 408 {
 409    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 410
 411    assert(vpipe);
 412    assert(dt);
 413
 414    if (ctx->decode_target != dt || ctx->mc_buffer == NULL) {
 415       rotate_buffer(ctx);
 416
 417       pipe_surface_reference(&ctx->decode_target, dt);
 418    }
 419 }
 420
 421 static void
 422 sp_mpeg12_set_csc_matrix(struct pipe_video_context *vpipe, const float *mat)
 423 {
 424    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 425
 426    assert(vpipe);
 427
 428    vl_compositor_set_csc_matrix(&ctx->compositor, mat);
 429 }
 430
 431 static bool
 432 init_pipe_state(struct sp_mpeg12_context *ctx)
 433 {
 434    struct pipe_rasterizer_state rast;
 435    struct pipe_blend_state blend;
 436    struct pipe_depth_stencil_alpha_state dsa;
 437    unsigned i;
 438
 439    assert(ctx);
 440
 441    memset(&rast, 0, sizeof rast);
 442    rast.flatshade = 1;
 443    rast.flatshade_first = 0;
 444    rast.light_twoside = 0;
 445    rast.front_ccw = 1;
 446    rast.cull_face = PIPE_FACE_NONE;
 447    rast.fill_back = PIPE_POLYGON_MODE_FILL;
 448    rast.fill_front = PIPE_POLYGON_MODE_FILL;
 449    rast.offset_point = 0;
 450    rast.offset_line = 0;
 451    rast.scissor = 0;
 452    rast.poly_smooth = 0;
 453    rast.poly_stipple_enable = 0;
 454    rast.sprite_coord_enable = 0;
 455    rast.point_size_per_vertex = 0;
 456    rast.multisample = 0;
 457    rast.line_smooth = 0;
 458    rast.line_stipple_enable = 0;
 459    rast.line_stipple_factor = 0;
 460    rast.line_stipple_pattern = 0;
 461    rast.line_last_pixel = 0;
 462    rast.line_width = 1;
 463    rast.point_smooth = 0;
 464    rast.point_quad_rasterization = 0;
 465    rast.point_size = 1;
 466    rast.offset_units = 1;
 467    rast.offset_scale = 1;
 468    rast.gl_rasterization_rules = 1;
 469    ctx->rast = ctx->pipe->create_rasterizer_state(ctx->pipe, &rast);
 470    ctx->pipe->bind_rasterizer_state(ctx->pipe, ctx->rast);
 471
 472    memset(&blend, 0, sizeof blend);
 473    blend.independent_blend_enable = 0;
 474    blend.rt[0].blend_enable = 0;
 475    blend.rt[0].rgb_func = PIPE_BLEND_ADD;
 476    blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
 477    blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ONE;
 478    blend.rt[0].alpha_func = PIPE_BLEND_ADD;
 479    blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 480    blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE;
 481    blend.logicop_enable = 0;
 482    blend.logicop_func = PIPE_LOGICOP_CLEAR;
 483    /* Needed to allow color writes to FB, even if blending disabled */
 484    blend.rt[0].colormask = PIPE_MASK_RGBA;
 485    blend.dither = 0;
 486    ctx->blend = ctx->pipe->create_blend_state(ctx->pipe, &blend);
 487    ctx->pipe->bind_blend_state(ctx->pipe, ctx->blend);
 488
 489    memset(&dsa, 0, sizeof dsa);
 490    dsa.depth.enabled = 0;
 491    dsa.depth.writemask = 0;
 492    dsa.depth.func = PIPE_FUNC_ALWAYS;
 493    for (i = 0; i < 2; ++i) {
 494       dsa.stencil[i].enabled = 0;
 495       dsa.stencil[i].func = PIPE_FUNC_ALWAYS;
 496       dsa.stencil[i].fail_op = PIPE_STENCIL_OP_KEEP;
 497       dsa.stencil[i].zpass_op = PIPE_STENCIL_OP_KEEP;
 498       dsa.stencil[i].zfail_op = PIPE_STENCIL_OP_KEEP;
 499       dsa.stencil[i].valuemask = 0;
 500       dsa.stencil[i].writemask = 0;
 501    }
 502    dsa.alpha.enabled = 0;
 503    dsa.alpha.func = PIPE_FUNC_ALWAYS;
 504    dsa.alpha.ref_value = 0;
 505    ctx->dsa = ctx->pipe->create_depth_stencil_alpha_state(ctx->pipe, &dsa);
 506    ctx->pipe->bind_depth_stencil_alpha_state(ctx->pipe, ctx->dsa);
 507
 508    return true;
 509 }
 510
 511 static struct pipe_video_context *
 512 sp_mpeg12_create(struct pipe_context *pipe, enum pipe_video_profile profile,
 513                  enum pipe_video_chroma_format chroma_format,
 514                  unsigned width, unsigned height,
 515                  enum VL_MPEG12_MC_RENDERER_BUFFER_MODE bufmode,
 516                  bool pot_buffers,
 517                  enum pipe_format decode_format)
 518 {
 519    unsigned buffer_width, buffer_height;
 520    struct sp_mpeg12_context *ctx;
 521
 522    assert(u_reduce_video_profile(profile) == PIPE_VIDEO_CODEC_MPEG12);
 523
 524    ctx = CALLOC_STRUCT(sp_mpeg12_context);
 525
 526    if (!ctx)
 527       return NULL;
 528
 529    /* TODO: Non-pot buffers untested, probably doesn't work without changes to texcoord generation, vert shader, etc */
 530    assert(pot_buffers);
 531
 532    buffer_width = pot_buffers ? util_next_power_of_two(width) : width;
 533    buffer_height = pot_buffers ? util_next_power_of_two(height) : height;
 534
 535    ctx->base.profile = profile;
 536    ctx->base.chroma_format = chroma_format;
 537    ctx->base.width = width;
 538    ctx->base.height = height;
 539
 540    ctx->base.screen = pipe->screen;
 541    ctx->base.destroy = sp_mpeg12_destroy;
 542    ctx->base.get_param = sp_mpeg12_get_param;
 543    ctx->base.is_format_supported = sp_mpeg12_is_format_supported;
 544    ctx->base.create_surface = sp_mpeg12_create_surface;
 545    ctx->base.decode_macroblocks = sp_mpeg12_decode_macroblocks;
 546    ctx->base.render_picture = sp_mpeg12_render_picture;
 547    ctx->base.surface_fill = sp_mpeg12_surface_fill;
 548    ctx->base.surface_copy = sp_mpeg12_surface_copy;
 549    ctx->base.get_transfer = sp_mpeg12_get_transfer;
 550    ctx->base.transfer_destroy = sp_mpeg12_transfer_destroy;
 551    ctx->base.transfer_map = sp_mpeg12_transfer_map;
 552    ctx->base.transfer_flush_region = sp_mpeg12_transfer_flush_region;
 553    ctx->base.transfer_unmap = sp_mpeg12_transfer_unmap;
 554    if (pipe->transfer_inline_write)
 555       ctx->base.transfer_inline_write = sp_mpeg12_transfer_inline_write;
 556    ctx->base.set_picture_background = sp_mpeg12_set_picture_background;
 557    ctx->base.set_picture_layers = sp_mpeg12_set_picture_layers;
 558    ctx->base.set_decode_target = sp_mpeg12_set_decode_target;
 559    ctx->base.set_csc_matrix = sp_mpeg12_set_csc_matrix;
 560
 561    ctx->pipe = pipe;
 562    ctx->decode_format = decode_format;
 563
 564    if (!vl_mpeg12_mc_renderer_init(&ctx->mc_renderer, ctx->pipe,
 565                                    buffer_width, buffer_height, chroma_format,
 566                                    bufmode)) {
 567       ctx->pipe->destroy(ctx->pipe);
 568       FREE(ctx);
 569       return NULL;
 570    }
 571
 572    ctx->buffer_map = util_new_keymap(sizeof(unsigned), -1, delete_buffer);
 573    if (!ctx->buffer_map) {
 574       vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
 575       ctx->pipe->destroy(ctx->pipe);
 576       FREE(ctx);
 577       return NULL;
 578    }
 579
 580    if (!vl_compositor_init(&ctx->compositor, ctx->pipe)) {
 581       util_delete_keymap(ctx->buffer_map, ctx);
 582       vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
 583       ctx->pipe->destroy(ctx->pipe);
 584       FREE(ctx);
 585       return NULL;
 586    }
 587
 588    if (!init_pipe_state(ctx)) {
 589       vl_compositor_cleanup(&ctx->compositor);
 590       util_delete_keymap(ctx->buffer_map, ctx);
 591       vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
 592       ctx->pipe->destroy(ctx->pipe);
 593       FREE(ctx);
 594       return NULL;
 595    }
 596
 597    return &ctx->base;
 598 }
 599
 600 struct pipe_video_context *
 601 sp_video_create(struct pipe_screen *screen, enum pipe_video_profile profile,
 602                 enum pipe_video_chroma_format chroma_format,
 603                 unsigned width, unsigned height, void *priv)
 604 {
 605    struct pipe_context *pipe;
 606
 607    assert(screen);
 608    assert(width && height);
 609
 610    pipe = screen->context_create(screen, NULL);
 611    if (!pipe)
 612       return NULL;
 613
 614    /* TODO: Use slice buffering for softpipe when implemented, no advantage to buffering an entire picture with softpipe */
 615    return sp_video_create_ex(pipe, profile,
 616                              chroma_format,
 617                              width, height,
 618                              VL_MPEG12_MC_RENDERER_BUFFER_PICTURE,
 619                              true,
 620                              PIPE_FORMAT_XYUV);
 621 }
 622
 623 struct pipe_video_context *
 624 sp_video_create_ex(struct pipe_context *pipe, enum pipe_video_profile profile,
 625                    enum pipe_video_chroma_format chroma_format,
 626                    unsigned width, unsigned height,
 627                    enum VL_MPEG12_MC_RENDERER_BUFFER_MODE bufmode,
 628                    bool pot_buffers,
 629                    enum pipe_format decode_format)
 630 {
 631    assert(pipe);
 632    assert(width && height);
 633
 634    switch (u_reduce_video_profile(profile)) {
 635       case PIPE_VIDEO_CODEC_MPEG12:
 636          return sp_mpeg12_create(pipe, profile,
 637                                  chroma_format,
 638                                  width, height,
 639                                  bufmode,
 640                                  pot_buffers,
 641                                  decode_format);
 642       default:
 643          return NULL;
 644    }
 645 }