src/gallium/drivers/softpipe/sp_video_context.c

   1 #include "sp_video_context.h"
   2 #include <pipe/p_inlines.h>
   3 #include <util/u_memory.h>
   4 #include "softpipe/sp_winsys.h"
   5 #include "softpipe/sp_texture.h"
   6
   7 static void
   8 sp_mpeg12_destroy(struct pipe_video_context *vpipe)
   9 {
  10    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
  11
  12    assert(vpipe);
  13
  14    /* Asserted in softpipe_delete_fs_state() for some reason */
  15    ctx->pipe->bind_vs_state(ctx->pipe, NULL);
  16    ctx->pipe->bind_fs_state(ctx->pipe, NULL);
  17
  18    ctx->pipe->delete_blend_state(ctx->pipe, ctx->blend);
  19    ctx->pipe->delete_rasterizer_state(ctx->pipe, ctx->rast);
  20    ctx->pipe->delete_depth_stencil_alpha_state(ctx->pipe, ctx->dsa);
  21
  22    pipe_video_surface_reference(&ctx->decode_target, NULL);
  23    vl_compositor_cleanup(&ctx->compositor);
  24    vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
  25    ctx->pipe->destroy(ctx->pipe);
  26
  27    FREE(ctx);
  28 }
  29
  30 static void
  31 sp_mpeg12_decode_macroblocks(struct pipe_video_context *vpipe,
  32                              struct pipe_video_surface *past,
  33                              struct pipe_video_surface *future,
  34                              unsigned num_macroblocks,
  35                              struct pipe_macroblock *macroblocks,
  36                              struct pipe_fence_handle **fence)
  37 {
  38    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
  39    struct pipe_mpeg12_macroblock *mpeg12_macroblocks = (struct pipe_mpeg12_macroblock*)macroblocks;
  40
  41    assert(vpipe);
  42    assert(num_macroblocks);
  43    assert(macroblocks);
  44    assert(macroblocks->codec == PIPE_VIDEO_CODEC_MPEG12);
  45    assert(ctx->decode_target);
  46
  47    vl_mpeg12_mc_renderer_render_macroblocks(&ctx->mc_renderer,
  48                                             softpipe_video_surface(ctx->decode_target)->tex,
  49                                             past ? softpipe_video_surface(past)->tex : NULL,
  50                                             future ? softpipe_video_surface(future)->tex : NULL,
  51                                             num_macroblocks, mpeg12_macroblocks, fence);
  52 }
  53
  54 static void
  55 sp_mpeg12_clear_surface(struct pipe_video_context *vpipe,
  56                         unsigned x, unsigned y,
  57                         unsigned width, unsigned height,
  58                         unsigned value,
  59                         struct pipe_surface *surface)
  60 {
  61    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
  62
  63    assert(vpipe);
  64    assert(surface);
  65
  66    ctx->pipe->surface_fill(ctx->pipe, surface, x, y, width, height, value);
  67 }
  68
  69 static void
  70 sp_mpeg12_render_picture(struct pipe_video_context     *vpipe,
  71                          /*struct pipe_surface         *backround,
  72                          struct pipe_video_rect        *backround_area,*/
  73                          struct pipe_video_surface     *src_surface,
  74                          enum pipe_mpeg12_picture_type picture_type,
  75                          /*unsigned                    num_past_surfaces,
  76                          struct pipe_video_surface     *past_surfaces,
  77                          unsigned                      num_future_surfaces,
  78                          struct pipe_video_surface     *future_surfaces,*/
  79                          struct pipe_video_rect        *src_area,
  80                          struct pipe_surface           *dst_surface,
  81                          struct pipe_video_rect        *dst_area,
  82                          /*unsigned                      num_layers,
  83                          struct pipe_surface           *layers,
  84                          struct pipe_video_rect        *layer_src_areas,
  85                          struct pipe_video_rect        *layer_dst_areas*/
  86                          struct pipe_fence_handle      **fence)
  87 {
  88    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
  89
  90    assert(vpipe);
  91    assert(src_surface);
  92    assert(src_area);
  93    assert(dst_surface);
  94    assert(dst_area);
  95
  96    vl_compositor_render(&ctx->compositor, softpipe_video_surface(src_surface)->tex,
  97                         picture_type, src_area, dst_surface->texture, dst_area, fence);
  98 }
  99
 100 static void
 101 sp_mpeg12_set_decode_target(struct pipe_video_context *vpipe,
 102                             struct pipe_video_surface *dt)
 103 {
 104    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 105
 106    assert(vpipe);
 107    assert(dt);
 108
 109    pipe_video_surface_reference(&ctx->decode_target, dt);
 110 }
 111
 112 static bool
 113 init_pipe_state(struct sp_mpeg12_context *ctx)
 114 {
 115    struct pipe_rasterizer_state rast;
 116    struct pipe_blend_state blend;
 117    struct pipe_depth_stencil_alpha_state dsa;
 118    unsigned i;
 119
 120    assert(ctx);
 121
 122    rast.flatshade = 1;
 123    rast.flatshade_first = 0;
 124    rast.light_twoside = 0;
 125    rast.front_winding = PIPE_WINDING_CCW;
 126    rast.cull_mode = PIPE_WINDING_CW;
 127    rast.fill_cw = PIPE_POLYGON_MODE_FILL;
 128    rast.fill_ccw = PIPE_POLYGON_MODE_FILL;
 129    rast.offset_cw = 0;
 130    rast.offset_ccw = 0;
 131    rast.scissor = 0;
 132    rast.poly_smooth = 0;
 133    rast.poly_stipple_enable = 0;
 134    rast.point_sprite = 0;
 135    rast.point_size_per_vertex = 0;
 136    rast.multisample = 0;
 137    rast.line_smooth = 0;
 138    rast.line_stipple_enable = 0;
 139    rast.line_stipple_factor = 0;
 140    rast.line_stipple_pattern = 0;
 141    rast.line_last_pixel = 0;
 142    rast.bypass_vs_clip_and_viewport = 0;
 143    rast.line_width = 1;
 144    rast.point_smooth = 0;
 145    rast.point_size = 1;
 146    rast.offset_units = 1;
 147    rast.offset_scale = 1;
 148    /*rast.sprite_coord_mode[i] = ;*/
 149    ctx->rast = ctx->pipe->create_rasterizer_state(ctx->pipe, &rast);
 150    ctx->pipe->bind_rasterizer_state(ctx->pipe, ctx->rast);
 151
 152    blend.blend_enable = 0;
 153    blend.rgb_func = PIPE_BLEND_ADD;
 154    blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE;
 155    blend.rgb_dst_factor = PIPE_BLENDFACTOR_ONE;
 156    blend.alpha_func = PIPE_BLEND_ADD;
 157    blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 158    blend.alpha_dst_factor = PIPE_BLENDFACTOR_ONE;
 159    blend.logicop_enable = 0;
 160    blend.logicop_func = PIPE_LOGICOP_CLEAR;
 161    /* Needed to allow color writes to FB, even if blending disabled */
 162    blend.colormask = PIPE_MASK_RGBA;
 163    blend.dither = 0;
 164    ctx->blend = ctx->pipe->create_blend_state(ctx->pipe, &blend);
 165    ctx->pipe->bind_blend_state(ctx->pipe, ctx->blend);
 166
 167    dsa.depth.enabled = 0;
 168    dsa.depth.writemask = 0;
 169    dsa.depth.func = PIPE_FUNC_ALWAYS;
 170    dsa.depth.occlusion_count = 0;
 171    for (i = 0; i < 2; ++i) {
 172       dsa.stencil[i].enabled = 0;
 173       dsa.stencil[i].func = PIPE_FUNC_ALWAYS;
 174       dsa.stencil[i].fail_op = PIPE_STENCIL_OP_KEEP;
 175       dsa.stencil[i].zpass_op = PIPE_STENCIL_OP_KEEP;
 176       dsa.stencil[i].zfail_op = PIPE_STENCIL_OP_KEEP;
 177       dsa.stencil[i].ref_value = 0;
 178       dsa.stencil[i].valuemask = 0;
 179       dsa.stencil[i].writemask = 0;
 180    }
 181    dsa.alpha.enabled = 0;
 182    dsa.alpha.func = PIPE_FUNC_ALWAYS;
 183    dsa.alpha.ref_value = 0;
 184    ctx->dsa = ctx->pipe->create_depth_stencil_alpha_state(ctx->pipe, &dsa);
 185    ctx->pipe->bind_depth_stencil_alpha_state(ctx->pipe, ctx->dsa);
 186
 187    return true;
 188 }
 189
 190 static struct pipe_video_context *
 191 sp_mpeg12_create(struct pipe_screen *screen, enum pipe_video_profile profile,
 192                  enum pipe_video_chroma_format chroma_format,
 193                  unsigned width, unsigned height)
 194 {
 195    struct sp_mpeg12_context *ctx;
 196
 197    assert(u_reduce_video_profile(profile) == PIPE_VIDEO_CODEC_MPEG12);
 198
 199    ctx = CALLOC_STRUCT(sp_mpeg12_context);
 200
 201    if (!ctx)
 202       return NULL;
 203
 204    ctx->base.profile = profile;
 205    ctx->base.chroma_format = chroma_format;
 206    ctx->base.width = width;
 207    ctx->base.height = height;
 208
 209    ctx->base.screen = screen;
 210    ctx->base.destroy = sp_mpeg12_destroy;
 211    ctx->base.decode_macroblocks = sp_mpeg12_decode_macroblocks;
 212    ctx->base.clear_surface = sp_mpeg12_clear_surface;
 213    ctx->base.render_picture = sp_mpeg12_render_picture;
 214    ctx->base.set_decode_target = sp_mpeg12_set_decode_target;
 215
 216    ctx->pipe = softpipe_create(screen);
 217    if (!ctx->pipe) {
 218       FREE(ctx);
 219       return NULL;
 220    }
 221
 222    /* TODO: Use slice buffering for softpipe when implemented, no advantage to buffering an entire picture */
 223    if (!vl_mpeg12_mc_renderer_init(&ctx->mc_renderer, ctx->pipe,
 224                                    width, height, chroma_format,
 225                                    VL_MPEG12_MC_RENDERER_BUFFER_PICTURE,
 226                                    /* TODO: Use XFER_NONE when implemented */
 227                                    VL_MPEG12_MC_RENDERER_EMPTY_BLOCK_XFER_ONE,
 228                                    true)) {
 229       ctx->pipe->destroy(ctx->pipe);
 230       FREE(ctx);
 231       return NULL;
 232    }
 233
 234    if (!vl_compositor_init(&ctx->compositor, ctx->pipe)) {
 235       vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
 236       ctx->pipe->destroy(ctx->pipe);
 237       FREE(ctx);
 238       return NULL;
 239    }
 240
 241    if (!init_pipe_state(ctx)) {
 242       vl_compositor_cleanup(&ctx->compositor);
 243       vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
 244       ctx->pipe->destroy(ctx->pipe);
 245       FREE(ctx);
 246       return NULL;
 247    }
 248
 249    return &ctx->base;
 250 }
 251
 252 struct pipe_video_context *
 253 sp_video_create(struct pipe_screen *screen, enum pipe_video_profile profile,
 254                 enum pipe_video_chroma_format chroma_format,
 255                 unsigned width, unsigned height)
 256 {
 257    assert(screen);
 258    assert(width && height);
 259
 260    switch (u_reduce_video_profile(profile)) {
 261       case PIPE_VIDEO_CODEC_MPEG12:
 262          return sp_mpeg12_create(screen, profile,
 263                                  chroma_format,
 264                                  width, height);
 265       default:
 266          return NULL;
 267    }
 268 }