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_rect.h>
  35 #include <util/u_video.h>
  36 #include <util/u_surface.h>
  37 #include "sp_public.h"
  38 #include "sp_texture.h"
  39
  40 static void
  41 sp_mpeg12_destroy(struct pipe_video_context *vpipe)
  42 {
  43    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
  44
  45    assert(vpipe);
  46
  47    /* Asserted in softpipe_delete_fs_state() for some reason */
  48    ctx->pipe->bind_vs_state(ctx->pipe, NULL);
  49    ctx->pipe->bind_fs_state(ctx->pipe, NULL);
  50
  51    ctx->pipe->delete_blend_state(ctx->pipe, ctx->blend);
  52    ctx->pipe->delete_rasterizer_state(ctx->pipe, ctx->rast);
  53    ctx->pipe->delete_depth_stencil_alpha_state(ctx->pipe, ctx->dsa);
  54
  55    pipe_surface_reference(&ctx->decode_target, NULL);
  56    vl_compositor_cleanup(&ctx->compositor);
  57    vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
  58    ctx->pipe->destroy(ctx->pipe);
  59
  60    FREE(ctx);
  61 }
  62
  63 static int
  64 sp_mpeg12_get_param(struct pipe_video_context *vpipe, int param)
  65 {
  66    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
  67
  68    assert(vpipe);
  69
  70    switch (param) {
  71       case PIPE_CAP_NPOT_TEXTURES:
  72          /* XXX: Temporary; not all paths are NPOT-tested */
  73 #if 0
  74          return ctx->pipe->screen->get_param(ctx->pipe->screen, param);
  75 #endif
  76          return FALSE;
  77       case PIPE_CAP_DECODE_TARGET_PREFERRED_FORMAT:
  78          return ctx->decode_format;
  79       default:
  80       {
  81          debug_printf("Softpipe: Unknown PIPE_CAP %d\n", param);
  82          return 0;
  83       }
  84    }
  85 }
  86
  87 static boolean
  88 sp_mpeg12_is_format_supported(struct pipe_video_context *vpipe,
  89                               enum pipe_format format,
  90                               unsigned usage,
  91                               unsigned geom)
  92 {
  93    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
  94
  95    assert(vpipe);
  96
  97    /* XXX: Temporary; not all paths are NPOT-tested */
  98    if (geom & PIPE_TEXTURE_GEOM_NON_POWER_OF_TWO)
  99       return FALSE;
 100
 101 <<<<<<< HEAD
 102    return ctx->pipe->screen->is_format_supported(ctx->pipe->screen, format, PIPE_TEXTURE_2D, 1,
 103                                                   usage, geom);
 104 =======
 105    return ctx->pipe->screen->is_format_supported(ctx->pipe->screen, format, PIPE_TEXTURE_2D,
 106                                                  0, usage, geom);
 107 >>>>>>> 97a7cf230a70c64fff300931ae7c00aa00449c97
 108 }
 109
 110 static void
 111 sp_mpeg12_decode_macroblocks(struct pipe_video_context *vpipe,
 112                              struct pipe_surface *past,
 113                              struct pipe_surface *future,
 114                              unsigned num_macroblocks,
 115                              struct pipe_macroblock *macroblocks,
 116                              struct pipe_fence_handle **fence)
 117 {
 118    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 119    struct pipe_mpeg12_macroblock *mpeg12_macroblocks = (struct pipe_mpeg12_macroblock*)macroblocks;
 120
 121    assert(vpipe);
 122    assert(num_macroblocks);
 123    assert(macroblocks);
 124    assert(macroblocks->codec == PIPE_VIDEO_CODEC_MPEG12);
 125    assert(ctx->decode_target);
 126
 127    vl_mpeg12_mc_renderer_render_macroblocks(&ctx->mc_renderer,
 128                                             ctx->decode_target,
 129                                             past, future, num_macroblocks,
 130                                             mpeg12_macroblocks, fence);
 131 }
 132
 133 static void
 134 sp_mpeg12_clear_render_target(struct pipe_video_context *vpipe,
 135                        struct pipe_surface *dst,
 136                        unsigned dstx, unsigned dsty,
 137                                            const float *rgba,
 138                        unsigned width, unsigned height)
 139 {
 140    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 141    float rgba[4] = { 0, 0, 0, 0 };
 142
 143    assert(vpipe);
 144    assert(dst);
 145
 146    if (ctx->pipe->clear_render_target)
 147       ctx->pipe->clear_render_target(ctx->pipe, dst, rgba, dstx, dsty, width, height);
 148    else
 149       util_clear_render_target(ctx->pipe, dst, rgba, dstx, dsty, width, height);
 150 }
 151
 152 static void
 153 sp_mpeg12_resource_copy_region(struct pipe_video_context *vpipe,
 154                        struct pipe_resource *dst,
 155                                            struct pipe_subresource subdst,
 156                        unsigned dstx, unsigned dsty, unsigned dstz,
 157                        struct pipe_resource *src,
 158                                            struct pipe_subresource subsrc,
 159                        unsigned srcx, unsigned srcy, unsigned srcz,
 160                        unsigned width, unsigned height)
 161 {
 162    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 163
 164    assert(vpipe);
 165    assert(dst);
 166
 167 <<<<<<< HEAD
 168    if (ctx->pipe->resource_copy_region)
 169       ctx->pipe->resource_copy_region(ctx->pipe, dst, subdst, dstx, dsty, dstz, src, subsrc, srcx, srcy, srcz, width, height);
 170    else
 171       util_resource_copy_region(ctx->pipe, dst, subdst, dstx, dsty, dstz, src, subsrc, srcx, srcy, srcz, width, height);
 172 =======
 173    struct pipe_subresource subdst, subsrc;
 174    subdst.face = dst->face;
 175    subdst.level = dst->level;
 176    subsrc.face = src->face;
 177    subsrc.level = src->level;
 178
 179    if (ctx->pipe->resource_copy_region)
 180       ctx->pipe->resource_copy_region(ctx->pipe, dst->texture, subdst, dstx, dsty, dst->zslice,
 181                                       src->texture, subsrc, srcx, srcy, src->zslice,
 182                                       width, height);
 183    else
 184       util_resource_copy_region(ctx->pipe, dst->texture, subdst, dstx, dsty, dst->zslice,
 185                                 src->texture, subsrc, srcx, srcy, src->zslice,
 186                                 width, height);
 187 >>>>>>> 97a7cf230a70c64fff300931ae7c00aa00449c97
 188 }
 189
 190 static struct pipe_transfer*
 191 sp_mpeg12_get_transfer(struct pipe_video_context *vpipe,
 192                        struct pipe_resource *resource,
 193                        struct pipe_subresource subresource,
 194                        unsigned usage,  /* a combination of PIPE_TRANSFER_x */
 195                        const struct pipe_box *box)
 196 {
 197    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 198
 199    assert(vpipe);
 200    assert(resource);
 201    assert(box);
 202
 203    return ctx->pipe->get_transfer(ctx->pipe, resource, subresource, usage, box);
 204 }
 205
 206 static void
 207 sp_mpeg12_transfer_destroy(struct pipe_video_context *vpipe,
 208                            struct pipe_transfer *transfer)
 209 {
 210    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 211
 212    assert(vpipe);
 213    assert(transfer);
 214
 215    ctx->pipe->transfer_destroy(ctx->pipe, transfer);
 216 }
 217
 218 static void*
 219 sp_mpeg12_transfer_map(struct pipe_video_context *vpipe,
 220                        struct pipe_transfer *transfer)
 221 {
 222    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 223
 224    assert(vpipe);
 225    assert(transfer);
 226
 227    return ctx->pipe->transfer_map(ctx->pipe, transfer);
 228 }
 229
 230 static void
 231 sp_mpeg12_transfer_flush_region(struct pipe_video_context *vpipe,
 232                                 struct pipe_transfer *transfer,
 233                                 const struct pipe_box *box)
 234 {
 235    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 236
 237    assert(vpipe);
 238    assert(transfer);
 239    assert(box);
 240
 241    ctx->pipe->transfer_flush_region(ctx->pipe, transfer, box);
 242 }
 243
 244 static void
 245 sp_mpeg12_transfer_unmap(struct pipe_video_context *vpipe,
 246                          struct pipe_transfer *transfer)
 247 {
 248    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 249
 250    assert(vpipe);
 251    assert(transfer);
 252
 253    ctx->pipe->transfer_unmap(ctx->pipe, transfer);
 254 }
 255
 256 static void
 257 sp_mpeg12_transfer_inline_write(struct pipe_video_context *vpipe,
 258                                 struct pipe_resource *resource,
 259                                 struct pipe_subresource subresource,
 260                                 unsigned usage, /* a combination of PIPE_TRANSFER_x */
 261                                 const struct pipe_box *box,
 262                                 const void *data,
 263                                 unsigned stride,
 264                                 unsigned slice_stride)
 265 {
 266    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 267
 268    assert(vpipe);
 269    assert(resource);
 270    assert(box);
 271    assert(data);
 272    assert(ctx->pipe->transfer_inline_write);
 273
 274    ctx->pipe->transfer_inline_write(ctx->pipe, resource, subresource, usage,
 275                                     box, data, stride, slice_stride);
 276 }
 277
 278 static void
 279 sp_mpeg12_render_picture(struct pipe_video_context     *vpipe,
 280                          struct pipe_surface           *src_surface,
 281                          enum pipe_mpeg12_picture_type picture_type,
 282                          /*unsigned                    num_past_surfaces,
 283                          struct pipe_surface           *past_surfaces,
 284                          unsigned                      num_future_surfaces,
 285                          struct pipe_surface           *future_surfaces,*/
 286                          struct pipe_video_rect        *src_area,
 287                          struct pipe_surface           *dst_surface,
 288                          struct pipe_video_rect        *dst_area,
 289                          struct pipe_fence_handle      **fence)
 290 {
 291    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 292
 293    assert(vpipe);
 294    assert(src_surface);
 295    assert(src_area);
 296    assert(dst_surface);
 297    assert(dst_area);
 298
 299    vl_compositor_render(&ctx->compositor, src_surface,
 300                         picture_type, src_area, dst_surface, dst_area, fence);
 301 }
 302
 303 static void
 304 sp_mpeg12_set_picture_background(struct pipe_video_context *vpipe,
 305                                   struct pipe_surface *bg,
 306                                   struct pipe_video_rect *bg_src_rect)
 307 {
 308    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 309
 310    assert(vpipe);
 311    assert(bg);
 312    assert(bg_src_rect);
 313
 314    vl_compositor_set_background(&ctx->compositor, bg, bg_src_rect);
 315 }
 316
 317 static void
 318 sp_mpeg12_set_picture_layers(struct pipe_video_context *vpipe,
 319                              struct pipe_surface *layers[],
 320                              struct pipe_video_rect *src_rects[],
 321                              struct pipe_video_rect *dst_rects[],
 322                              unsigned num_layers)
 323 {
 324    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 325
 326    assert(vpipe);
 327    assert((layers && src_rects && dst_rects) ||
 328           (!layers && !src_rects && !dst_rects));
 329
 330    vl_compositor_set_layers(&ctx->compositor, layers, src_rects, dst_rects, num_layers);
 331 }
 332
 333 static void
 334 sp_mpeg12_set_decode_target(struct pipe_video_context *vpipe,
 335                             struct pipe_surface *dt)
 336 {
 337    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 338
 339    assert(vpipe);
 340    assert(dt);
 341
 342    pipe_surface_reference(&ctx->decode_target, dt);
 343 }
 344
 345 static void
 346 sp_mpeg12_set_csc_matrix(struct pipe_video_context *vpipe, const float *mat)
 347 {
 348    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 349
 350    assert(vpipe);
 351
 352    vl_compositor_set_csc_matrix(&ctx->compositor, mat);
 353 }
 354
 355 static bool
 356 init_pipe_state(struct sp_mpeg12_context *ctx)
 357 {
 358    struct pipe_rasterizer_state rast;
 359    struct pipe_blend_state blend;
 360    struct pipe_depth_stencil_alpha_state dsa;
 361    unsigned i;
 362
 363    assert(ctx);
 364
 365    memset(&rast, 0, sizeof rast);
 366    rast.flatshade = 1;
 367    rast.flatshade_first = 0;
 368    rast.light_twoside = 0;
 369 <<<<<<< HEAD
 370    rast.cull_face = PIPE_FACE_FRONT;
 371    rast.fill_front = PIPE_POLYGON_MODE_FILL;
 372    rast.fill_back = PIPE_POLYGON_MODE_FILL;
 373 =======
 374    rast.front_ccw = 1;
 375    rast.cull_face = PIPE_FACE_NONE;
 376    rast.fill_back = PIPE_POLYGON_MODE_FILL;
 377    rast.fill_front = PIPE_POLYGON_MODE_FILL;
 378    rast.offset_point = 0;
 379    rast.offset_line = 0;
 380 >>>>>>> 97a7cf230a70c64fff300931ae7c00aa00449c97
 381    rast.scissor = 0;
 382    rast.poly_smooth = 0;
 383    rast.poly_stipple_enable = 0;
 384    rast.sprite_coord_enable = 0;
 385    rast.point_size_per_vertex = 0;
 386    rast.multisample = 0;
 387    rast.line_smooth = 0;
 388    rast.line_stipple_enable = 0;
 389    rast.line_stipple_factor = 0;
 390    rast.line_stipple_pattern = 0;
 391    rast.line_last_pixel = 0;
 392    rast.line_width = 1;
 393    rast.point_smooth = 0;
 394    rast.point_quad_rasterization = 0;
 395    rast.point_size_per_vertex = 1;
 396    rast.offset_units = 1;
 397    rast.offset_scale = 1;
 398    rast.gl_rasterization_rules = 1;
 399
 400    ctx->rast = ctx->pipe->create_rasterizer_state(ctx->pipe, &rast);
 401    ctx->pipe->bind_rasterizer_state(ctx->pipe, ctx->rast);
 402
 403 <<<<<<< HEAD
 404
 405 =======
 406    memset(&blend, 0, sizeof blend);
 407 >>>>>>> 97a7cf230a70c64fff300931ae7c00aa00449c97
 408    blend.independent_blend_enable = 0;
 409    blend.rt[0].blend_enable = 0;
 410    blend.rt[0].rgb_func = PIPE_BLEND_ADD;
 411    blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
 412    blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ONE;
 413    blend.rt[0].alpha_func = PIPE_BLEND_ADD;
 414    blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 415    blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE;
 416    blend.logicop_enable = 0;
 417    blend.logicop_func = PIPE_LOGICOP_CLEAR;
 418    /* Needed to allow color writes to FB, even if blending disabled */
 419    blend.rt[0].colormask = PIPE_MASK_RGBA;
 420    blend.dither = 0;
 421    ctx->blend = ctx->pipe->create_blend_state(ctx->pipe, &blend);
 422    ctx->pipe->bind_blend_state(ctx->pipe, ctx->blend);
 423
 424    memset(&dsa, 0, sizeof dsa);
 425    dsa.depth.enabled = 0;
 426    dsa.depth.writemask = 0;
 427    dsa.depth.func = PIPE_FUNC_ALWAYS;
 428    for (i = 0; i < 2; ++i) {
 429       dsa.stencil[i].enabled = 0;
 430       dsa.stencil[i].func = PIPE_FUNC_ALWAYS;
 431       dsa.stencil[i].fail_op = PIPE_STENCIL_OP_KEEP;
 432       dsa.stencil[i].zpass_op = PIPE_STENCIL_OP_KEEP;
 433       dsa.stencil[i].zfail_op = PIPE_STENCIL_OP_KEEP;
 434       dsa.stencil[i].valuemask = 0;
 435       dsa.stencil[i].writemask = 0;
 436    }
 437    dsa.alpha.enabled = 0;
 438    dsa.alpha.func = PIPE_FUNC_ALWAYS;
 439    dsa.alpha.ref_value = 0;
 440    ctx->dsa = ctx->pipe->create_depth_stencil_alpha_state(ctx->pipe, &dsa);
 441    ctx->pipe->bind_depth_stencil_alpha_state(ctx->pipe, ctx->dsa);
 442
 443    return true;
 444 }
 445
 446 static struct pipe_video_context *
 447 sp_mpeg12_create(struct pipe_context *pipe, enum pipe_video_profile profile,
 448                  enum pipe_video_chroma_format chroma_format,
 449                  unsigned width, unsigned height,
 450                  enum VL_MPEG12_MC_RENDERER_BUFFER_MODE bufmode,
 451                  enum VL_MPEG12_MC_RENDERER_EMPTY_BLOCK eb_handling,
 452                  bool pot_buffers,
 453                  enum pipe_format decode_format)
 454 {
 455    struct sp_mpeg12_context *ctx;
 456
 457    assert(u_reduce_video_profile(profile) == PIPE_VIDEO_CODEC_MPEG12);
 458
 459    ctx = CALLOC_STRUCT(sp_mpeg12_context);
 460
 461    if (!ctx)
 462       return NULL;
 463
 464    ctx->base.profile = profile;
 465    ctx->base.chroma_format = chroma_format;
 466    ctx->base.width = width;
 467    ctx->base.height = height;
 468
 469    ctx->base.screen = pipe->screen;
 470
 471    ctx->base.destroy = sp_mpeg12_destroy;
 472    ctx->base.get_param = sp_mpeg12_get_param;
 473    ctx->base.is_format_supported = sp_mpeg12_is_format_supported;
 474    ctx->base.decode_macroblocks = sp_mpeg12_decode_macroblocks;
 475    ctx->base.render_picture = sp_mpeg12_render_picture;
 476    ctx->base.clear_render_target = sp_mpeg12_clear_render_target;
 477    ctx->base.resource_copy_region = sp_mpeg12_resource_copy_region;
 478    ctx->base.get_transfer = sp_mpeg12_get_transfer;
 479    ctx->base.transfer_destroy = sp_mpeg12_transfer_destroy;
 480    ctx->base.transfer_map = sp_mpeg12_transfer_map;
 481    ctx->base.transfer_flush_region = sp_mpeg12_transfer_flush_region;
 482    ctx->base.transfer_unmap = sp_mpeg12_transfer_unmap;
 483    if (pipe->transfer_inline_write)
 484       ctx->base.transfer_inline_write = sp_mpeg12_transfer_inline_write;
 485    ctx->base.set_picture_background = sp_mpeg12_set_picture_background;
 486    ctx->base.set_picture_layers = sp_mpeg12_set_picture_layers;
 487    ctx->base.set_decode_target = sp_mpeg12_set_decode_target;
 488    ctx->base.set_csc_matrix = sp_mpeg12_set_csc_matrix;
 489
 490    ctx->pipe = pipe;
 491    ctx->decode_format = decode_format;
 492
 493    if (!vl_mpeg12_mc_renderer_init(&ctx->mc_renderer, ctx->pipe,
 494                                    width, height, chroma_format,
 495                                    bufmode, eb_handling, pot_buffers)) {
 496       ctx->pipe->destroy(ctx->pipe);
 497       FREE(ctx);
 498       return NULL;
 499    }
 500
 501    if (!vl_compositor_init(&ctx->compositor, ctx->pipe)) {
 502       vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
 503       ctx->pipe->destroy(ctx->pipe);
 504       FREE(ctx);
 505       return NULL;
 506    }
 507
 508    if (!init_pipe_state(ctx)) {
 509       vl_compositor_cleanup(&ctx->compositor);
 510       vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
 511       ctx->pipe->destroy(ctx->pipe);
 512       FREE(ctx);
 513       return NULL;
 514    }
 515
 516    return &ctx->base;
 517 }
 518
 519 struct pipe_video_context *
 520 sp_video_create(struct pipe_screen *screen, enum pipe_video_profile profile,
 521                 enum pipe_video_chroma_format chroma_format,
 522                 unsigned width, unsigned height, void *priv)
 523 {
 524    struct pipe_context *pipe;
 525
 526    assert(screen);
 527    assert(width && height);
 528
 529    pipe = screen->context_create(screen, NULL);
 530    if (!pipe)
 531       return NULL;
 532
 533    /* TODO: Use slice buffering for softpipe when implemented, no advantage to buffering an entire picture with softpipe */
 534    /* TODO: Use XFER_NONE when implemented */
 535    return sp_video_create_ex(pipe, profile,
 536                              chroma_format,
 537                              width, height,
 538                              VL_MPEG12_MC_RENDERER_BUFFER_PICTURE,
 539                              VL_MPEG12_MC_RENDERER_EMPTY_BLOCK_XFER_ONE,
 540                              true,
 541                              PIPE_FORMAT_XYUV);
 542 }
 543
 544 struct pipe_video_context *
 545 sp_video_create_ex(struct pipe_context *pipe, enum pipe_video_profile profile,
 546                    enum pipe_video_chroma_format chroma_format,
 547                    unsigned width, unsigned height,
 548                    enum VL_MPEG12_MC_RENDERER_BUFFER_MODE bufmode,
 549                    enum VL_MPEG12_MC_RENDERER_EMPTY_BLOCK eb_handling,
 550                    bool pot_buffers,
 551                    enum pipe_format decode_format)
 552 {
 553    assert(pipe);
 554    assert(width && height);
 555
 556    switch (u_reduce_video_profile(profile)) {
 557       case PIPE_VIDEO_CODEC_MPEG12:
 558          return sp_mpeg12_create(pipe, profile,
 559                                  chroma_format,
 560                                  width, height,
 561                                  bufmode, eb_handling,
 562                                  pot_buffers,
 563                                  decode_format);
 564       default:
 565          return NULL;
 566    }
 567 }