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 static void
 102 vl_video_buffer_destroy(struct pipe_video_buffer *buffer)
 103 {
 104    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 105    unsigned i;
 106
 107    assert(buf);
 108
 109    for (i = 0; i < VL_MAX_PLANES; ++i) {
 110       pipe_surface_reference(&buf->surfaces[i], NULL);
 111       pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
 112       pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
 113       pipe_resource_reference(&buf->resources[i], NULL);
 114    }
 115
 116    FREE(buffer);
 117 }
 118
 119 static struct pipe_sampler_view **
 120 vl_video_buffer_sampler_view_planes(struct pipe_video_buffer *buffer)
 121 {
 122    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 123    struct pipe_sampler_view sv_templ;
 124    struct pipe_context *pipe;
 125    unsigned i;
 126
 127    assert(buf);
 128
 129    pipe = buf->base.context;
 130
 131    for (i = 0; i < buf->num_planes; ++i ) {
 132       if (!buf->sampler_view_planes[i]) {
 133          memset(&sv_templ, 0, sizeof(sv_templ));
 134          u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
 135
 136          if (util_format_get_nr_components(buf->resources[i]->format) == 1)
 137             sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = sv_templ.swizzle_a = PIPE_SWIZZLE_RED;
 138
 139          buf->sampler_view_planes[i] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
 140          if (!buf->sampler_view_planes[i])
 141             goto error;
 142       }
 143    }
 144
 145    return buf->sampler_view_planes;
 146
 147 error:
 148    for (i = 0; i < buf->num_planes; ++i )
 149       pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
 150
 151    return NULL;
 152 }
 153
 154 static struct pipe_sampler_view **
 155 vl_video_buffer_sampler_view_components(struct pipe_video_buffer *buffer)
 156 {
 157    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 158    struct pipe_sampler_view sv_templ;
 159    struct pipe_context *pipe;
 160    unsigned i, j, component;
 161
 162    assert(buf);
 163
 164    pipe = buf->base.context;
 165
 166    for (component = 0, i = 0; i < buf->num_planes; ++i ) {
 167       unsigned nr_components = util_format_get_nr_components(buf->resources[i]->format);
 168
 169       for (j = 0; j < nr_components; ++j, ++component) {
 170          assert(component < VL_MAX_PLANES);
 171
 172          if (!buf->sampler_view_components[component]) {
 173             memset(&sv_templ, 0, sizeof(sv_templ));
 174             u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
 175             sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = PIPE_SWIZZLE_RED + j;
 176             sv_templ.swizzle_a = PIPE_SWIZZLE_ONE;
 177             buf->sampler_view_components[component] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
 178             if (!buf->sampler_view_components[component])
 179                goto error;
 180          }
 181       }
 182    }
 183
 184    return buf->sampler_view_components;
 185
 186 error:
 187    for (i = 0; i < VL_MAX_PLANES; ++i )
 188       pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
 189
 190    return NULL;
 191 }
 192
 193 static struct pipe_surface **
 194 vl_video_buffer_surfaces(struct pipe_video_buffer *buffer)
 195 {
 196    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 197    struct pipe_surface surf_templ;
 198    struct pipe_context *pipe;
 199    unsigned i;
 200
 201    assert(buf);
 202
 203    pipe = buf->base.context;
 204
 205    for (i = 0; i < buf->num_planes; ++i ) {
 206       if (!buf->surfaces[i]) {
 207          memset(&surf_templ, 0, sizeof(surf_templ));
 208          surf_templ.format = buf->resources[i]->format;
 209          surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
 210          buf->surfaces[i] = pipe->create_surface(pipe, buf->resources[i], &surf_templ);
 211          if (!buf->surfaces[i])
 212             goto error;
 213       }
 214    }
 215
 216    return buf->surfaces;
 217
 218 error:
 219    for (i = 0; i < buf->num_planes; ++i )
 220       pipe_surface_reference(&buf->surfaces[i], NULL);
 221
 222    return NULL;
 223 }
 224
 225 struct pipe_video_buffer *
 226 vl_video_buffer_create(struct pipe_context *pipe,
 227                        enum pipe_format buffer_format,
 228                        enum pipe_video_chroma_format chroma_format,
 229                        unsigned width, unsigned height)
 230 {
 231    const enum pipe_format *resource_formats;
 232    struct pipe_video_buffer *result;
 233    unsigned buffer_width, buffer_height;
 234    bool pot_buffers;
 235
 236    assert(pipe);
 237    assert(width > 0 && height > 0);
 238
 239    pot_buffers = !pipe->screen->get_video_param
 240    (
 241       pipe->screen,
 242       PIPE_VIDEO_PROFILE_UNKNOWN,
 243       PIPE_VIDEO_CAP_NPOT_TEXTURES
 244    );
 245
 246    resource_formats = vl_video_buffer_formats(pipe->screen, buffer_format);
 247    if (!resource_formats)
 248       return NULL;
 249
 250    buffer_width = pot_buffers ? util_next_power_of_two(width) : align(width, MACROBLOCK_WIDTH);
 251    buffer_height = pot_buffers ? util_next_power_of_two(height) : align(height, MACROBLOCK_HEIGHT);
 252
 253    result = vl_video_buffer_create_ex
 254    (
 255       pipe, buffer_width, buffer_height, 1,
 256       chroma_format, resource_formats, PIPE_USAGE_STATIC
 257    );
 258    if (result)
 259       result->buffer_format = buffer_format;
 260
 261    return result;
 262 }
 263
 264 struct pipe_video_buffer *
 265 vl_video_buffer_create_ex(struct pipe_context *pipe,
 266                           unsigned width, unsigned height, unsigned depth,
 267                           enum pipe_video_chroma_format chroma_format,
 268                           const enum pipe_format resource_formats[VL_MAX_PLANES],
 269                           unsigned usage)
 270 {
 271    struct vl_video_buffer *buffer;
 272    struct pipe_resource templ;
 273    unsigned i;
 274
 275    assert(pipe);
 276
 277    buffer = CALLOC_STRUCT(vl_video_buffer);
 278
 279    buffer->base.context = pipe;
 280    buffer->base.destroy = vl_video_buffer_destroy;
 281    buffer->base.get_sampler_view_planes = vl_video_buffer_sampler_view_planes;
 282    buffer->base.get_sampler_view_components = vl_video_buffer_sampler_view_components;
 283    buffer->base.get_surfaces = vl_video_buffer_surfaces;
 284    buffer->base.chroma_format = chroma_format;
 285    buffer->base.width = width;
 286    buffer->base.height = height;
 287    buffer->num_planes = 1;
 288
 289    memset(&templ, 0, sizeof(templ));
 290    templ.target = depth > 1 ? PIPE_TEXTURE_3D : PIPE_TEXTURE_2D;
 291    templ.format = resource_formats[0];
 292    templ.width0 = width;
 293    templ.height0 = height;
 294    templ.depth0 = depth;
 295    templ.array_size = 1;
 296    templ.bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
 297    templ.usage = usage;
 298
 299    buffer->resources[0] = pipe->screen->resource_create(pipe->screen, &templ);
 300    if (!buffer->resources[0])
 301       goto error;
 302
 303    if (resource_formats[1] == PIPE_FORMAT_NONE) {
 304       assert(chroma_format == PIPE_VIDEO_CHROMA_FORMAT_444);
 305       assert(resource_formats[2] == PIPE_FORMAT_NONE);
 306       return &buffer->base;
 307    } else
 308       buffer->num_planes = 2;
 309
 310    templ.format = resource_formats[1];
 311    if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
 312       templ.width0 /= 2;
 313       templ.height0 /= 2;
 314    } else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
 315       templ.height0 /= 2;
 316    }
 317
 318    buffer->resources[1] = pipe->screen->resource_create(pipe->screen, &templ);
 319    if (!buffer->resources[1])
 320       goto error;
 321
 322    if (resource_formats[2] == PIPE_FORMAT_NONE)
 323       return &buffer->base;
 324    else
 325       buffer->num_planes = 3;
 326
 327    templ.format = resource_formats[2];
 328    buffer->resources[2] = pipe->screen->resource_create(pipe->screen, &templ);
 329    if (!buffer->resources[2])
 330       goto error;
 331
 332    return &buffer->base;
 333
 334 error:
 335    for (i = 0; i < VL_MAX_PLANES; ++i)
 336       pipe_resource_reference(&buffer->resources[i], NULL);
 337    FREE(buffer);
 338
 339    return NULL;
 340 }