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
 107 static struct pipe_sampler_view **
 108 vl_video_buffer_sampler_view_planes(struct pipe_video_buffer *buffer)
 109 {
 110    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 111    struct pipe_sampler_view sv_templ;
 112    struct pipe_context *pipe;
 113    unsigned i;
 114
 115    assert(buf);
 116
 117    pipe = buf->pipe;
 118
 119    for (i = 0; i < buf->num_planes; ++i ) {
 120       if (!buf->sampler_view_planes[i]) {
 121          memset(&sv_templ, 0, sizeof(sv_templ));
 122          u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
 123
 124          if (util_format_get_nr_components(buf->resources[i]->format) == 1)
 125             sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = sv_templ.swizzle_a = PIPE_SWIZZLE_RED;
 126
 127          buf->sampler_view_planes[i] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
 128          if (!buf->sampler_view_planes[i])
 129             goto error;
 130       }
 131    }
 132
 133    return buf->sampler_view_planes;
 134
 135 error:
 136    for (i = 0; i < buf->num_planes; ++i )
 137       pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
 138
 139    return NULL;
 140 }
 141
 142 static struct pipe_sampler_view **
 143 vl_video_buffer_sampler_view_components(struct pipe_video_buffer *buffer)
 144 {
 145    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 146    struct pipe_sampler_view sv_templ;
 147    struct pipe_context *pipe;
 148    unsigned i, j, component;
 149
 150    assert(buf);
 151
 152    pipe = buf->pipe;
 153
 154    for (component = 0, i = 0; i < buf->num_planes; ++i ) {
 155       unsigned nr_components = util_format_get_nr_components(buf->resources[i]->format);
 156
 157       for (j = 0; j < nr_components; ++j, ++component) {
 158          assert(component < VL_MAX_PLANES);
 159
 160          if (!buf->sampler_view_components[component]) {
 161             memset(&sv_templ, 0, sizeof(sv_templ));
 162             u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
 163             sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = PIPE_SWIZZLE_RED + j;
 164             sv_templ.swizzle_a = PIPE_SWIZZLE_ONE;
 165             buf->sampler_view_components[component] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
 166             if (!buf->sampler_view_components[component])
 167                goto error;
 168          }
 169       }
 170    }
 171
 172    return buf->sampler_view_components;
 173
 174 error:
 175    for (i = 0; i < VL_MAX_PLANES; ++i )
 176       pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
 177
 178    return NULL;
 179 }
 180
 181 static struct pipe_surface **
 182 vl_video_buffer_surfaces(struct pipe_video_buffer *buffer)
 183 {
 184    struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
 185    struct pipe_surface surf_templ;
 186    struct pipe_context *pipe;
 187    unsigned i;
 188
 189    assert(buf);
 190
 191    pipe = buf->pipe;
 192
 193    for (i = 0; i < buf->num_planes; ++i ) {
 194       if (!buf->surfaces[i]) {
 195          memset(&surf_templ, 0, sizeof(surf_templ));
 196          surf_templ.format = buf->resources[i]->format;
 197          surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
 198          buf->surfaces[i] = pipe->create_surface(pipe, buf->resources[i], &surf_templ);
 199          if (!buf->surfaces[i])
 200             goto error;
 201       }
 202    }
 203
 204    return buf->surfaces;
 205
 206 error:
 207    for (i = 0; i < buf->num_planes; ++i )
 208       pipe_surface_reference(&buf->surfaces[i], NULL);
 209
 210    return NULL;
 211 }
 212
 213 struct pipe_video_buffer *
 214 vl_video_buffer_init(struct pipe_video_context *context,
 215                      struct pipe_context *pipe,
 216                      unsigned width, unsigned height, unsigned depth,
 217                      enum pipe_video_chroma_format chroma_format,
 218                      const enum pipe_format resource_formats[VL_MAX_PLANES],
 219                      unsigned usage)
 220 {
 221    struct vl_video_buffer *buffer;
 222    struct pipe_resource templ;
 223    unsigned i;
 224
 225    assert(context && pipe);
 226
 227    buffer = CALLOC_STRUCT(vl_video_buffer);
 228
 229    buffer->base.destroy = vl_video_buffer_destroy;
 230    buffer->base.get_sampler_view_planes = vl_video_buffer_sampler_view_planes;
 231    buffer->base.get_sampler_view_components = vl_video_buffer_sampler_view_components;
 232    buffer->base.get_surfaces = vl_video_buffer_surfaces;
 233    buffer->base.chroma_format = chroma_format;
 234    buffer->base.width = width;
 235    buffer->base.height = height;
 236    buffer->pipe = pipe;
 237    buffer->num_planes = 1;
 238
 239    memset(&templ, 0, sizeof(templ));
 240    templ.target = depth > 1 ? PIPE_TEXTURE_3D : PIPE_TEXTURE_2D;
 241    templ.format = resource_formats[0];
 242    templ.width0 = width;
 243    templ.height0 = height;
 244    templ.depth0 = depth;
 245    templ.array_size = 1;
 246    templ.bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
 247    templ.usage = usage;
 248
 249    buffer->resources[0] = pipe->screen->resource_create(pipe->screen, &templ);
 250    if (!buffer->resources[0])
 251       goto error;
 252
 253    if (resource_formats[1] == PIPE_FORMAT_NONE) {
 254       assert(chroma_format == PIPE_VIDEO_CHROMA_FORMAT_444);
 255       assert(resource_formats[2] == PIPE_FORMAT_NONE);
 256       return &buffer->base;
 257    } else
 258       buffer->num_planes = 2;
 259
 260    templ.format = resource_formats[1];
 261    if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
 262       templ.width0 /= 2;
 263       templ.height0 /= 2;
 264    } else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
 265       templ.height0 /= 2;
 266    }
 267
 268    buffer->resources[1] = pipe->screen->resource_create(pipe->screen, &templ);
 269    if (!buffer->resources[1])
 270       goto error;
 271
 272    if (resource_formats[2] == PIPE_FORMAT_NONE)
 273       return &buffer->base;
 274    else
 275       buffer->num_planes = 3;
 276
 277    templ.format = resource_formats[2];
 278    buffer->resources[2] = pipe->screen->resource_create(pipe->screen, &templ);
 279    if (!buffer->resources[2])
 280       goto error;
 281
 282    return &buffer->base;
 283
 284 error:
 285    for (i = 0; i < VL_MAX_PLANES; ++i)
 286       pipe_resource_reference(&buffer->resources[i], NULL);
 287    FREE(buffer);
 288
 289    return NULL;
 290 }