src/gallium/auxiliary/vl/vl_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 <pipe/p_video_context.h>
  29
  30 #include <util/u_memory.h>
  31 #include <util/u_rect.h>
  32 #include <util/u_video.h>
  33
  34 #include "vl_context.h"
  35 #include "vl_compositor.h"
  36 #include "vl_mpeg12_decoder.h"
  37
  38 const enum pipe_format const_resource_formats_YV12[3] = {
  39    PIPE_FORMAT_R8_UNORM,
  40    PIPE_FORMAT_R8_UNORM,
  41    PIPE_FORMAT_R8_UNORM
  42 };
  43
  44 const enum pipe_format const_resource_formats_NV12[3] = {
  45    PIPE_FORMAT_R8_UNORM,
  46    PIPE_FORMAT_R8G8_UNORM,
  47    PIPE_FORMAT_NONE
  48 };
  49
  50 static void
  51 vl_context_destroy(struct pipe_video_context *context)
  52 {
  53    struct vl_context *ctx = (struct vl_context*)context;
  54
  55    assert(context);
  56
  57    ctx->pipe->destroy(ctx->pipe);
  58
  59    FREE(ctx);
  60 }
  61
  62 static int
  63 vl_context_get_param(struct pipe_video_context *context, int param)
  64 {
  65    struct vl_context *ctx = (struct vl_context*)context;
  66
  67    assert(context);
  68
  69    if (param == PIPE_CAP_NPOT_TEXTURES)
  70       return !ctx->pot_buffers;
  71
  72    debug_printf("vl_context: Unknown PIPE_CAP %d\n", param);
  73    return 0;
  74 }
  75
  76 static boolean
  77 vl_context_is_format_supported(struct pipe_video_context *context,
  78                                enum pipe_format format,
  79                                unsigned usage)
  80 {
  81    struct vl_context *ctx = (struct vl_context*)context;
  82
  83    assert(context);
  84
  85    return ctx->pipe->screen->is_format_supported(ctx->pipe->screen, format,
  86                                                  PIPE_TEXTURE_2D,
  87                                                  0, usage);
  88 }
  89
  90 static struct pipe_surface *
  91 vl_context_create_surface(struct pipe_video_context *context,
  92                           struct pipe_resource *resource,
  93                           const struct pipe_surface *templ)
  94 {
  95    struct vl_context *ctx = (struct vl_context*)context;
  96
  97    assert(ctx);
  98
  99    return ctx->pipe->create_surface(ctx->pipe, resource, templ);
 100 }
 101
 102 static struct pipe_sampler_view *
 103 vl_context_create_sampler_view(struct pipe_video_context *context,
 104                                struct pipe_resource *resource,
 105                                const struct pipe_sampler_view *templ)
 106 {
 107    struct vl_context *ctx = (struct vl_context*)context;
 108
 109    assert(ctx);
 110
 111    return ctx->pipe->create_sampler_view(ctx->pipe, resource, templ);
 112 }
 113
 114 static void
 115 vl_context_upload_sampler(struct pipe_video_context *context,
 116                           struct pipe_sampler_view *dst,
 117                           const struct pipe_box *dst_box,
 118                           const void *src, unsigned src_stride,
 119                           unsigned src_x, unsigned src_y)
 120 {
 121    struct vl_context *ctx = (struct vl_context*)context;
 122    struct pipe_transfer *transfer;
 123    void *map;
 124
 125    assert(context);
 126    assert(dst);
 127    assert(dst_box);
 128    assert(src);
 129
 130    transfer = ctx->pipe->get_transfer(ctx->pipe, dst->texture, 0, PIPE_TRANSFER_WRITE, dst_box);
 131    if (!transfer)
 132       return;
 133
 134    map = ctx->pipe->transfer_map(ctx->pipe, transfer);
 135    if (!transfer)
 136       goto error_map;
 137
 138    util_copy_rect(map, dst->texture->format, transfer->stride, 0, 0,
 139                   dst_box->width, dst_box->height,
 140                   src, src_stride, src_x, src_y);
 141
 142    ctx->pipe->transfer_unmap(ctx->pipe, transfer);
 143
 144 error_map:
 145    ctx->pipe->transfer_destroy(ctx->pipe, transfer);
 146 }
 147
 148 static void
 149 vl_context_clear_sampler(struct pipe_video_context *context,
 150                          struct pipe_sampler_view *dst,
 151                          const struct pipe_box *dst_box,
 152                          const float *rgba)
 153 {
 154    struct vl_context *ctx = (struct vl_context*)context;
 155    struct pipe_transfer *transfer;
 156    union util_color uc;
 157    void *map;
 158    unsigned i;
 159
 160    assert(context);
 161    assert(dst);
 162    assert(dst_box);
 163    assert(rgba);
 164
 165    transfer = ctx->pipe->get_transfer(ctx->pipe, dst->texture, 0, PIPE_TRANSFER_WRITE, dst_box);
 166    if (!transfer)
 167       return;
 168
 169    map = ctx->pipe->transfer_map(ctx->pipe, transfer);
 170    if (!transfer)
 171       goto error_map;
 172
 173    for ( i = 0; i < 4; ++i)
 174       uc.f[i] = rgba[i];
 175
 176    util_fill_rect(map, dst->texture->format, transfer->stride, 0, 0,
 177                   dst_box->width, dst_box->height, &uc);
 178
 179    ctx->pipe->transfer_unmap(ctx->pipe, transfer);
 180
 181 error_map:
 182    ctx->pipe->transfer_destroy(ctx->pipe, transfer);
 183 }
 184
 185 static struct pipe_video_decoder *
 186 vl_context_create_decoder(struct pipe_video_context *context,
 187                           enum pipe_video_profile profile,
 188                           enum pipe_video_entrypoint entrypoint,
 189                           enum pipe_video_chroma_format chroma_format,
 190                           unsigned width, unsigned height)
 191 {
 192    struct vl_context *ctx = (struct vl_context*)context;
 193    unsigned buffer_width, buffer_height;
 194
 195    assert(context);
 196    assert(width > 0 && height > 0);
 197
 198    buffer_width = ctx->pot_buffers ? util_next_power_of_two(width) : align(width, MACROBLOCK_WIDTH);
 199    buffer_height = ctx->pot_buffers ? util_next_power_of_two(height) : align(height, MACROBLOCK_HEIGHT);
 200
 201    switch (u_reduce_video_profile(profile)) {
 202       case PIPE_VIDEO_CODEC_MPEG12:
 203          return vl_create_mpeg12_decoder(context, ctx->pipe, profile, entrypoint,
 204                                          chroma_format, buffer_width, buffer_height);
 205       default:
 206          return NULL;
 207    }
 208    return NULL;
 209 }
 210
 211 static struct pipe_video_buffer *
 212 vl_context_create_buffer(struct pipe_video_context *context,
 213                          enum pipe_format buffer_format,
 214                          enum pipe_video_chroma_format chroma_format,
 215                          unsigned width, unsigned height)
 216 {
 217    struct vl_context *ctx = (struct vl_context*)context;
 218    struct pipe_video_buffer *result;
 219    unsigned buffer_width, buffer_height;
 220
 221    const enum pipe_format *resource_formats;
 222
 223    assert(context);
 224    assert(width > 0 && height > 0);
 225
 226    switch(buffer_format) {
 227    case PIPE_FORMAT_YV12:
 228       resource_formats = const_resource_formats_YV12;
 229       break;
 230
 231    case PIPE_FORMAT_NV12:
 232       resource_formats = const_resource_formats_NV12;
 233       break;
 234
 235    default:
 236       assert(0);
 237       return NULL;
 238    }
 239
 240    buffer_width = ctx->pot_buffers ? util_next_power_of_two(width) : align(width, MACROBLOCK_WIDTH);
 241    buffer_height = ctx->pot_buffers ? util_next_power_of_two(height) : align(height, MACROBLOCK_HEIGHT);
 242
 243    result = vl_video_buffer_init(context, ctx->pipe,
 244                                  buffer_width, buffer_height, 1,
 245                                  chroma_format,
 246                                  resource_formats,
 247                                  PIPE_USAGE_STATIC);
 248    if (result) // TODO move format handling into vl_video_buffer
 249       result->buffer_format = buffer_format;
 250
 251    return result;
 252 }
 253
 254 static struct pipe_video_compositor *
 255 vl_context_create_compositor(struct pipe_video_context *context)
 256 {
 257    struct vl_context *ctx = (struct vl_context*)context;
 258
 259    assert(context);
 260
 261    return vl_compositor_init(context, ctx->pipe);
 262 }
 263
 264 struct pipe_video_context *
 265 vl_create_context(struct pipe_context *pipe, bool pot_buffers)
 266 {
 267    struct vl_context *ctx;
 268
 269    ctx = CALLOC_STRUCT(vl_context);
 270
 271    if (!ctx)
 272       return NULL;
 273
 274    ctx->base.screen = pipe->screen;
 275
 276    ctx->base.destroy = vl_context_destroy;
 277    ctx->base.get_param = vl_context_get_param;
 278    ctx->base.is_format_supported = vl_context_is_format_supported;
 279    ctx->base.create_surface = vl_context_create_surface;
 280    ctx->base.create_sampler_view = vl_context_create_sampler_view;
 281    ctx->base.clear_sampler = vl_context_clear_sampler;
 282    ctx->base.upload_sampler = vl_context_upload_sampler;
 283    ctx->base.create_decoder = vl_context_create_decoder;
 284    ctx->base.create_buffer = vl_context_create_buffer;
 285    ctx->base.create_compositor = vl_context_create_compositor;
 286
 287    ctx->pipe = pipe;
 288    ctx->pot_buffers = pot_buffers;
 289
 290    return &ctx->base;
 291 }