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 static void
  92 vl_video_buffer_destroy(struct pipe_video_buffer *buffer)
  93 {
  94    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
  95    unsigned i;
  96
  97    assert(buf);
  98
  99    for (i = 0; i < VL_MAX_PLANES; ++i) {
 100       pipe_surface_reference(&buf->surfaces[i], NULL);
 101       pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
 102       pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
 103       pipe_resource_reference(&buf->resources[i], NULL);
 104    }
 105
 106    FREE(buffer);
 107 }
 108
 109 static struct pipe_sampler_view **
 110 vl_video_buffer_sampler_view_planes(struct pipe_video_buffer *buffer)
 111 {
 112    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 113    struct pipe_sampler_view sv_templ;
 114    struct pipe_context *pipe;
 115    unsigned i;
 116
 117    assert(buf);
 118
 119    pipe = buf->base.context;
 120
 121    for (i = 0; i < buf->num_planes; ++i ) {
 122       if (!buf->sampler_view_planes[i]) {
 123          memset(&sv_templ, 0, sizeof(sv_templ));
 124          u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
 125
 126          if (util_format_get_nr_components(buf->resources[i]->format) == 1)
 127             sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = sv_templ.swizzle_a = PIPE_SWIZZLE_RED;
 128
 129          buf->sampler_view_planes[i] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
 130          if (!buf->sampler_view_planes[i])
 131             goto error;
 132       }
 133    }
 134
 135    return buf->sampler_view_planes;
 136
 137 error:
 138    for (i = 0; i < buf->num_planes; ++i )
 139       pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
 140
 141    return NULL;
 142 }
 143
 144 static struct pipe_sampler_view **
 145 vl_video_buffer_sampler_view_components(struct pipe_video_buffer *buffer)
 146 {
 147    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 148    struct pipe_sampler_view sv_templ;
 149    struct pipe_context *pipe;
 150    unsigned i, j, component;
 151
 152    assert(buf);
 153
 154    pipe = buf->base.context;
 155
 156    for (component = 0, i = 0; i < buf->num_planes; ++i ) {
 157       unsigned nr_components = util_format_get_nr_components(buf->resources[i]->format);
 158
 159       for (j = 0; j < nr_components; ++j, ++component) {
 160          assert(component < VL_MAX_PLANES);
 161
 162          if (!buf->sampler_view_components[component]) {
 163             memset(&sv_templ, 0, sizeof(sv_templ));
 164             u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
 165             sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = PIPE_SWIZZLE_RED + j;
 166             sv_templ.swizzle_a = PIPE_SWIZZLE_ONE;
 167             buf->sampler_view_components[component] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
 168             if (!buf->sampler_view_components[component])
 169                goto error;
 170          }
 171       }
 172    }
 173
 174    return buf->sampler_view_components;
 175
 176 error:
 177    for (i = 0; i < VL_MAX_PLANES; ++i )
 178       pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
 179
 180    return NULL;
 181 }
 182
 183 static struct pipe_surface **
 184 vl_video_buffer_surfaces(struct pipe_video_buffer *buffer)
 185 {
 186    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 187    struct pipe_surface surf_templ;
 188    struct pipe_context *pipe;
 189    unsigned i;
 190
 191    assert(buf);
 192
 193    pipe = buf->base.context;
 194
 195    for (i = 0; i < buf->num_planes; ++i ) {
 196       if (!buf->surfaces[i]) {
 197          memset(&surf_templ, 0, sizeof(surf_templ));
 198          surf_templ.format = buf->resources[i]->format;
 199          surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
 200          buf->surfaces[i] = pipe->create_surface(pipe, buf->resources[i], &surf_templ);
 201          if (!buf->surfaces[i])
 202             goto error;
 203       }
 204    }
 205
 206    return buf->surfaces;
 207
 208 error:
 209    for (i = 0; i < buf->num_planes; ++i )
 210       pipe_surface_reference(&buf->surfaces[i], NULL);
 211
 212    return NULL;
 213 }
 214
 215 struct pipe_video_buffer *
 216 vl_video_buffer_create(struct pipe_context *pipe,
 217                        enum pipe_format buffer_format,
 218                        enum pipe_video_chroma_format chroma_format,
 219                        unsigned width, unsigned height)
 220 {
 221    const enum pipe_format *resource_formats;
 222    struct pipe_video_buffer *result;
 223    unsigned buffer_width, buffer_height;
 224    bool pot_buffers;
 225
 226    assert(pipe);
 227    assert(width > 0 && height > 0);
 228
 229    pot_buffers = !pipe->screen->get_video_param
 230    (
 231       pipe->screen,
 232       PIPE_VIDEO_PROFILE_UNKNOWN,
 233       PIPE_VIDEO_CAP_NPOT_TEXTURES
 234    );
 235
 236    resource_formats = vl_video_buffer_formats(pipe->screen, buffer_format);
 237    if (!resource_formats)
 238       return NULL;
 239
 240    buffer_width = pot_buffers ? util_next_power_of_two(width) : align(width, MACROBLOCK_WIDTH);
 241    buffer_height = pot_buffers ? util_next_power_of_two(height) : align(height, MACROBLOCK_HEIGHT);
 242
 243    result = vl_video_buffer_create_ex
 244    (
 245       pipe, buffer_width, buffer_height, 1,
 246       chroma_format, resource_formats, PIPE_USAGE_STATIC
 247    );
 248    if (result)
 249       result->buffer_format = buffer_format;
 250
 251    return result;
 252 }
 253
 254 struct pipe_video_buffer *
 255 vl_video_buffer_create_ex(struct pipe_context *pipe,
 256                           unsigned width, unsigned height, unsigned depth,
 257                           enum pipe_video_chroma_format chroma_format,
 258                           const enum pipe_format resource_formats[VL_MAX_PLANES],
 259                           unsigned usage)
 260 {
 261    struct vl_video_buffer *buffer;
 262    struct pipe_resource templ;
 263    unsigned i;
 264
 265    assert(pipe);
 266
 267    buffer = CALLOC_STRUCT(vl_video_buffer);
 268
 269    buffer->base.context = pipe;
 270    buffer->base.destroy = vl_video_buffer_destroy;
 271    buffer->base.get_sampler_view_planes = vl_video_buffer_sampler_view_planes;
 272    buffer->base.get_sampler_view_components = vl_video_buffer_sampler_view_components;
 273    buffer->base.get_surfaces = vl_video_buffer_surfaces;
 274    buffer->base.chroma_format = chroma_format;
 275    buffer->base.width = width;
 276    buffer->base.height = height;
 277    buffer->num_planes = 1;
 278
 279    memset(&templ, 0, sizeof(templ));
 280    templ.target = depth > 1 ? PIPE_TEXTURE_3D : PIPE_TEXTURE_2D;
 281    templ.format = resource_formats[0];
 282    templ.width0 = width;
 283    templ.height0 = height;
 284    templ.depth0 = depth;
 285    templ.array_size = 1;
 286    templ.bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
 287    templ.usage = usage;
 288
 289    buffer->resources[0] = pipe->screen->resource_create(pipe->screen, &templ);
 290    if (!buffer->resources[0])
 291       goto error;
 292
 293    if (resource_formats[1] == PIPE_FORMAT_NONE) {
 294       assert(chroma_format == PIPE_VIDEO_CHROMA_FORMAT_444);
 295       assert(resource_formats[2] == PIPE_FORMAT_NONE);
 296       return &buffer->base;
 297    } else
 298       buffer->num_planes = 2;
 299
 300    templ.format = resource_formats[1];
 301    if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
 302       templ.width0 /= 2;
 303       templ.height0 /= 2;
 304    } else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
 305       templ.height0 /= 2;
 306    }
 307
 308    buffer->resources[1] = pipe->screen->resource_create(pipe->screen, &templ);
 309    if (!buffer->resources[1])
 310       goto error;
 311
 312    if (resource_formats[2] == PIPE_FORMAT_NONE)
 313       return &buffer->base;
 314    else
 315       buffer->num_planes = 3;
 316
 317    templ.format = resource_formats[2];
 318    buffer->resources[2] = pipe->screen->resource_create(pipe->screen, &templ);
 319    if (!buffer->resources[2])
 320       goto error;
 321
 322    return &buffer->base;
 323
 324 error:
 325    for (i = 0; i < VL_MAX_PLANES; ++i)
 326       pipe_resource_reference(&buffer->resources[i], NULL);
 327    FREE(buffer);
 328
 329    return NULL;
 330 }