gl/mesa/src/gallium/auxiliary/vl/vl_video_buffer.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2011 Christian König.
   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 <assert.h>
  29
  30 #include "pipe/p_screen.h"
  31 #include "pipe/p_context.h"
  32 #include "pipe/p_state.h"
  33
  34 #include "util/u_format.h"
  35 #include "util/u_inlines.h"
  36 #include "util/u_sampler.h"
  37 #include "util/u_memory.h"
  38
  39 #include "vl_video_buffer.h"
  40
  41 const enum pipe_format const_resource_formats_YV12[3] = {
  42    PIPE_FORMAT_R8_UNORM,
  43    PIPE_FORMAT_R8_UNORM,
  44    PIPE_FORMAT_R8_UNORM
  45 };
  46
  47 const enum pipe_format const_resource_formats_NV12[3] = {
  48    PIPE_FORMAT_R8_UNORM,
  49    PIPE_FORMAT_R8G8_UNORM,
  50    PIPE_FORMAT_NONE
  51 };
  52
  53 const enum pipe_format *
  54 vl_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format)
  55 {
  56    switch(format) {
  57    case PIPE_FORMAT_YV12:
  58       return const_resource_formats_YV12;
  59
  60    case PIPE_FORMAT_NV12:
  61       return const_resource_formats_NV12;
  62
  63    default:
  64       return NULL;
  65    }
  66 }
  67
  68 boolean
  69 vl_video_buffer_is_format_supported(struct pipe_screen *screen,
  70                                     enum pipe_format format,
  71                                     enum pipe_video_profile profile)
  72 {
  73    const enum pipe_format *resource_formats;
  74    unsigned i;
  75
  76    resource_formats = vl_video_buffer_formats(screen, format);
  77    if (!resource_formats)
  78       return false;
  79
  80    for (i = 0; i < VL_MAX_PLANES; ++i) {
  81       if (!resource_formats[i])
  82          continue;
  83
  84       if (!screen->is_format_supported(screen, resource_formats[i], PIPE_TEXTURE_2D, 0, PIPE_USAGE_STATIC))
  85          return false;
  86    }
  87
  88    return true;
  89 }
  90
  91 unsigned
  92 vl_video_buffer_max_size(struct pipe_screen *screen)
  93 {
  94    uint32_t max_2d_texture_level;
  95
  96    max_2d_texture_level = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
  97
  98    return 1 << (max_2d_texture_level-1);
  99 }
 100
 101 void
 102 vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf,
 103                                     struct pipe_video_decoder *vdec,
 104                                     void *associated_data,
 105                                     void (*destroy_associated_data)(void *))
 106 {
 107    vbuf->decoder = vdec;
 108
 109    if (vbuf->associated_data == associated_data)
 110       return;
 111
 112    if (vbuf->associated_data)
 113       vbuf->destroy_associated_data(vbuf->associated_data);
 114
 115    vbuf->associated_data = associated_data;
 116    vbuf->destroy_associated_data = destroy_associated_data;
 117 }
 118
 119 void *
 120 vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf,
 121                                     struct pipe_video_decoder *vdec)
 122 {
 123    if (vbuf->decoder == vdec)
 124       return vbuf->associated_data;
 125    else
 126       return NULL;
 127 }
 128
 129 static void
 130 vl_video_buffer_destroy(struct pipe_video_buffer *buffer)
 131 {
 132    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 133    unsigned i;
 134
 135    assert(buf);
 136
 137    for (i = 0; i < VL_MAX_PLANES; ++i) {
 138       pipe_surface_reference(&buf->surfaces[i], NULL);
 139       pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
 140       pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
 141       pipe_resource_reference(&buf->resources[i], NULL);
 142    }
 143    vl_video_buffer_set_associated_data(buffer, NULL, NULL, NULL);
 144
 145    FREE(buffer);
 146 }
 147
 148 static struct pipe_sampler_view **
 149 vl_video_buffer_sampler_view_planes(struct pipe_video_buffer *buffer)
 150 {
 151    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 152    struct pipe_sampler_view sv_templ;
 153    struct pipe_context *pipe;
 154    unsigned i;
 155
 156    assert(buf);
 157
 158    pipe = buf->base.context;
 159
 160    for (i = 0; i < buf->num_planes; ++i ) {
 161       if (!buf->sampler_view_planes[i]) {
 162          memset(&sv_templ, 0, sizeof(sv_templ));
 163          u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
 164
 165          if (util_format_get_nr_components(buf->resources[i]->format) == 1)
 166             sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = sv_templ.swizzle_a = PIPE_SWIZZLE_RED;
 167
 168          buf->sampler_view_planes[i] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
 169          if (!buf->sampler_view_planes[i])
 170             goto error;
 171       }
 172    }
 173
 174    return buf->sampler_view_planes;
 175
 176 error:
 177    for (i = 0; i < buf->num_planes; ++i )
 178       pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
 179
 180    return NULL;
 181 }
 182
 183 static struct pipe_sampler_view **
 184 vl_video_buffer_sampler_view_components(struct pipe_video_buffer *buffer)
 185 {
 186    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 187    struct pipe_sampler_view sv_templ;
 188    struct pipe_context *pipe;
 189    unsigned i, j, component;
 190
 191    assert(buf);
 192
 193    pipe = buf->base.context;
 194
 195    for (component = 0, i = 0; i < buf->num_planes; ++i ) {
 196       unsigned nr_components = util_format_get_nr_components(buf->resources[i]->format);
 197
 198       for (j = 0; j < nr_components; ++j, ++component) {
 199          assert(component < VL_MAX_PLANES);
 200
 201          if (!buf->sampler_view_components[component]) {
 202             memset(&sv_templ, 0, sizeof(sv_templ));
 203             u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
 204             sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = PIPE_SWIZZLE_RED + j;
 205             sv_templ.swizzle_a = PIPE_SWIZZLE_ONE;
 206             buf->sampler_view_components[component] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
 207             if (!buf->sampler_view_components[component])
 208                goto error;
 209          }
 210       }
 211    }
 212
 213    return buf->sampler_view_components;
 214
 215 error:
 216    for (i = 0; i < VL_MAX_PLANES; ++i )
 217       pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
 218
 219    return NULL;
 220 }
 221
 222 static struct pipe_surface **
 223 vl_video_buffer_surfaces(struct pipe_video_buffer *buffer)
 224 {
 225    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 226    struct pipe_surface surf_templ;
 227    struct pipe_context *pipe;
 228    unsigned i;
 229
 230    assert(buf);
 231
 232    pipe = buf->base.context;
 233
 234    for (i = 0; i < buf->num_planes; ++i ) {
 235       if (!buf->surfaces[i]) {
 236          memset(&surf_templ, 0, sizeof(surf_templ));
 237          surf_templ.format = buf->resources[i]->format;
 238          surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
 239          buf->surfaces[i] = pipe->create_surface(pipe, buf->resources[i], &surf_templ);
 240          if (!buf->surfaces[i])
 241             goto error;
 242       }
 243    }
 244
 245    return buf->surfaces;
 246
 247 error:
 248    for (i = 0; i < buf->num_planes; ++i )
 249       pipe_surface_reference(&buf->surfaces[i], NULL);
 250
 251    return NULL;
 252 }
 253
 254 struct pipe_video_buffer *
 255 vl_video_buffer_create(struct pipe_context *pipe,
 256                        enum pipe_format buffer_format,
 257                        enum pipe_video_chroma_format chroma_format,
 258                        unsigned width, unsigned height)
 259 {
 260    const enum pipe_format *resource_formats;
 261    struct pipe_video_buffer *result;
 262    unsigned buffer_width, buffer_height;
 263    bool pot_buffers;
 264
 265    assert(pipe);
 266    assert(width > 0 && height > 0);
 267
 268    pot_buffers = !pipe->screen->get_video_param
 269    (
 270       pipe->screen,
 271       PIPE_VIDEO_PROFILE_UNKNOWN,
 272       PIPE_VIDEO_CAP_NPOT_TEXTURES
 273    );
 274
 275    resource_formats = vl_video_buffer_formats(pipe->screen, buffer_format);
 276    if (!resource_formats)
 277       return NULL;
 278
 279    buffer_width = pot_buffers ? util_next_power_of_two(width) : align(width, MACROBLOCK_WIDTH);
 280    buffer_height = pot_buffers ? util_next_power_of_two(height) : align(height, MACROBLOCK_HEIGHT);
 281
 282    result = vl_video_buffer_create_ex
 283    (
 284       pipe, buffer_width, buffer_height, 1,
 285       chroma_format, resource_formats, PIPE_USAGE_STATIC
 286    );
 287    if (result)
 288       result->buffer_format = buffer_format;
 289
 290    return result;
 291 }
 292
 293 struct pipe_video_buffer *
 294 vl_video_buffer_create_ex(struct pipe_context *pipe,
 295                           unsigned width, unsigned height, unsigned depth,
 296                           enum pipe_video_chroma_format chroma_format,
 297                           const enum pipe_format resource_formats[VL_MAX_PLANES],
 298                           unsigned usage)
 299 {
 300    struct vl_video_buffer *buffer;
 301    struct pipe_resource templ;
 302    unsigned i;
 303
 304    assert(pipe);
 305
 306    buffer = CALLOC_STRUCT(vl_video_buffer);
 307
 308    buffer->base.context = pipe;
 309    buffer->base.destroy = vl_video_buffer_destroy;
 310    buffer->base.get_sampler_view_planes = vl_video_buffer_sampler_view_planes;
 311    buffer->base.get_sampler_view_components = vl_video_buffer_sampler_view_components;
 312    buffer->base.get_surfaces = vl_video_buffer_surfaces;
 313    buffer->base.chroma_format = chroma_format;
 314    buffer->base.width = width;
 315    buffer->base.height = height;
 316    buffer->num_planes = 1;
 317
 318    memset(&templ, 0, sizeof(templ));
 319    templ.target = depth > 1 ? PIPE_TEXTURE_3D : PIPE_TEXTURE_2D;
 320    templ.format = resource_formats[0];
 321    templ.width0 = width;
 322    templ.height0 = height;
 323    templ.depth0 = depth;
 324    templ.array_size = 1;
 325    templ.bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
 326    templ.usage = usage;
 327
 328    buffer->resources[0] = pipe->screen->resource_create(pipe->screen, &templ);
 329    if (!buffer->resources[0])
 330       goto error;
 331
 332    if (resource_formats[1] == PIPE_FORMAT_NONE) {
 333       assert(chroma_format == PIPE_VIDEO_CHROMA_FORMAT_444);
 334       assert(resource_formats[2] == PIPE_FORMAT_NONE);
 335       return &buffer->base;
 336    } else
 337       buffer->num_planes = 2;
 338
 339    templ.format = resource_formats[1];
 340    if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
 341       templ.width0 /= 2;
 342       templ.height0 /= 2;
 343    } else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
 344       templ.height0 /= 2;
 345    }
 346
 347    buffer->resources[1] = pipe->screen->resource_create(pipe->screen, &templ);
 348    if (!buffer->resources[1])
 349       goto error;
 350
 351    if (resource_formats[2] == PIPE_FORMAT_NONE)
 352       return &buffer->base;
 353    else
 354       buffer->num_planes = 3;
 355
 356    templ.format = resource_formats[2];
 357    buffer->resources[2] = pipe->screen->resource_create(pipe->screen, &templ);
 358    if (!buffer->resources[2])
 359       goto error;
 360
 361    return &buffer->base;
 362
 363 error:
 364    for (i = 0; i < VL_MAX_PLANES; ++i)
 365       pipe_resource_reference(&buffer->resources[i], NULL);
 366    FREE(buffer);
 367
 368    return NULL;
 369 }