src/gallium/drivers/softpipe/sp_video_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 "sp_video_context.h"
  29 #include <util/u_inlines.h>
  30 #include <util/u_memory.h>
  31 #include "softpipe/sp_texture.h"
  32
  33 static void
  34 sp_mpeg12_destroy(struct pipe_video_context *vpipe)
  35 {
  36    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
  37
  38    assert(vpipe);
  39
  40    /* Asserted in softpipe_delete_fs_state() for some reason */
  41    ctx->pipe->bind_vs_state(ctx->pipe, NULL);
  42    ctx->pipe->bind_fs_state(ctx->pipe, NULL);
  43
  44    ctx->pipe->delete_blend_state(ctx->pipe, ctx->blend);
  45    ctx->pipe->delete_rasterizer_state(ctx->pipe, ctx->rast);
  46    ctx->pipe->delete_depth_stencil_alpha_state(ctx->pipe, ctx->dsa);
  47
  48    pipe_video_surface_reference(&ctx->decode_target, NULL);
  49    vl_compositor_cleanup(&ctx->compositor);
  50    vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
  51    ctx->pipe->destroy(ctx->pipe);
  52
  53    FREE(ctx);
  54 }
  55
  56 static void
  57 sp_mpeg12_decode_macroblocks(struct pipe_video_context *vpipe,
  58                              struct pipe_video_surface *past,
  59                              struct pipe_video_surface *future,
  60                              unsigned num_macroblocks,
  61                              struct pipe_macroblock *macroblocks,
  62                              struct pipe_fence_handle **fence)
  63 {
  64    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
  65    struct pipe_mpeg12_macroblock *mpeg12_macroblocks = (struct pipe_mpeg12_macroblock*)macroblocks;
  66
  67    assert(vpipe);
  68    assert(num_macroblocks);
  69    assert(macroblocks);
  70    assert(macroblocks->codec == PIPE_VIDEO_CODEC_MPEG12);
  71    assert(ctx->decode_target);
  72
  73    vl_mpeg12_mc_renderer_render_macroblocks(&ctx->mc_renderer,
  74                                             softpipe_video_surface(ctx->decode_target)->tex,
  75                                             past ? softpipe_video_surface(past)->tex : NULL,
  76                                             future ? softpipe_video_surface(future)->tex : NULL,
  77                                             num_macroblocks, mpeg12_macroblocks, fence);
  78 }
  79
  80 static void
  81 sp_mpeg12_clear_surface(struct pipe_video_context *vpipe,
  82                         unsigned x, unsigned y,
  83                         unsigned width, unsigned height,
  84                         unsigned value,
  85                         struct pipe_surface *surface)
  86 {
  87    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
  88
  89    assert(vpipe);
  90    assert(surface);
  91
  92    ctx->pipe->surface_fill(ctx->pipe, surface, x, y, width, height, value);
  93 }
  94
  95 static void
  96 sp_mpeg12_render_picture(struct pipe_video_context     *vpipe,
  97                          /*struct pipe_surface         *backround,
  98                          struct pipe_video_rect        *backround_area,*/
  99                          struct pipe_video_surface     *src_surface,
 100                          enum pipe_mpeg12_picture_type picture_type,
 101                          /*unsigned                    num_past_surfaces,
 102                          struct pipe_video_surface     *past_surfaces,
 103                          unsigned                      num_future_surfaces,
 104                          struct pipe_video_surface     *future_surfaces,*/
 105                          struct pipe_video_rect        *src_area,
 106                          struct pipe_surface           *dst_surface,
 107                          struct pipe_video_rect        *dst_area,
 108                          /*unsigned                      num_layers,
 109                          struct pipe_surface           *layers,
 110                          struct pipe_video_rect        *layer_src_areas,
 111                          struct pipe_video_rect        *layer_dst_areas*/
 112                          struct pipe_fence_handle      **fence)
 113 {
 114    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 115
 116    assert(vpipe);
 117    assert(src_surface);
 118    assert(src_area);
 119    assert(dst_surface);
 120    assert(dst_area);
 121
 122    vl_compositor_render(&ctx->compositor, softpipe_video_surface(src_surface)->tex,
 123                         picture_type, src_area, dst_surface->texture, dst_area, fence);
 124 }
 125
 126 static void
 127 sp_mpeg12_set_decode_target(struct pipe_video_context *vpipe,
 128                             struct pipe_video_surface *dt)
 129 {
 130    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 131
 132    assert(vpipe);
 133    assert(dt);
 134
 135    pipe_video_surface_reference(&ctx->decode_target, dt);
 136 }
 137
 138 static void sp_mpeg12_set_csc_matrix(struct pipe_video_context *vpipe, const float *mat)
 139 {
 140    struct sp_mpeg12_context *ctx = (struct sp_mpeg12_context*)vpipe;
 141
 142    assert(vpipe);
 143
 144    vl_compositor_set_csc_matrix(&ctx->compositor, mat);
 145 }
 146
 147 static bool
 148 init_pipe_state(struct sp_mpeg12_context *ctx)
 149 {
 150    struct pipe_rasterizer_state rast;
 151    struct pipe_blend_state blend;
 152    struct pipe_depth_stencil_alpha_state dsa;
 153    unsigned i;
 154
 155    assert(ctx);
 156
 157    rast.flatshade = 1;
 158    rast.flatshade_first = 0;
 159    rast.light_twoside = 0;
 160    rast.front_winding = PIPE_WINDING_CCW;
 161    rast.cull_mode = PIPE_WINDING_CW;
 162    rast.fill_cw = PIPE_POLYGON_MODE_FILL;
 163    rast.fill_ccw = PIPE_POLYGON_MODE_FILL;
 164    rast.offset_cw = 0;
 165    rast.offset_ccw = 0;
 166    rast.scissor = 0;
 167    rast.poly_smooth = 0;
 168    rast.poly_stipple_enable = 0;
 169    rast.sprite_coord_enable = 0;
 170    rast.point_size_per_vertex = 0;
 171    rast.multisample = 0;
 172    rast.line_smooth = 0;
 173    rast.line_stipple_enable = 0;
 174    rast.line_stipple_factor = 0;
 175    rast.line_stipple_pattern = 0;
 176    rast.line_last_pixel = 0;
 177    rast.line_width = 1;
 178    rast.point_smooth = 0;
 179    rast.point_quad_rasterization = 0;
 180    rast.point_size = 1;
 181    rast.offset_units = 1;
 182    rast.offset_scale = 1;
 183    ctx->rast = ctx->pipe->create_rasterizer_state(ctx->pipe, &rast);
 184    ctx->pipe->bind_rasterizer_state(ctx->pipe, ctx->rast);
 185
 186    blend.independent_blend_enable = 0;
 187    blend.rt[0].blend_enable = 0;
 188    blend.rt[0].rgb_func = PIPE_BLEND_ADD;
 189    blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE;
 190    blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ONE;
 191    blend.rt[0].alpha_func = PIPE_BLEND_ADD;
 192    blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE;
 193    blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE;
 194    blend.logicop_enable = 0;
 195    blend.logicop_func = PIPE_LOGICOP_CLEAR;
 196    /* Needed to allow color writes to FB, even if blending disabled */
 197    blend.rt[0].colormask = PIPE_MASK_RGBA;
 198    blend.dither = 0;
 199    ctx->blend = ctx->pipe->create_blend_state(ctx->pipe, &blend);
 200    ctx->pipe->bind_blend_state(ctx->pipe, ctx->blend);
 201
 202    dsa.depth.enabled = 0;
 203    dsa.depth.writemask = 0;
 204    dsa.depth.func = PIPE_FUNC_ALWAYS;
 205    for (i = 0; i < 2; ++i) {
 206       dsa.stencil[i].enabled = 0;
 207       dsa.stencil[i].func = PIPE_FUNC_ALWAYS;
 208       dsa.stencil[i].fail_op = PIPE_STENCIL_OP_KEEP;
 209       dsa.stencil[i].zpass_op = PIPE_STENCIL_OP_KEEP;
 210       dsa.stencil[i].zfail_op = PIPE_STENCIL_OP_KEEP;
 211       dsa.stencil[i].valuemask = 0;
 212       dsa.stencil[i].writemask = 0;
 213    }
 214    dsa.alpha.enabled = 0;
 215    dsa.alpha.func = PIPE_FUNC_ALWAYS;
 216    dsa.alpha.ref_value = 0;
 217    ctx->dsa = ctx->pipe->create_depth_stencil_alpha_state(ctx->pipe, &dsa);
 218    ctx->pipe->bind_depth_stencil_alpha_state(ctx->pipe, ctx->dsa);
 219
 220    return true;
 221 }
 222
 223 static struct pipe_video_context *
 224 sp_mpeg12_create(struct pipe_screen *screen, enum pipe_video_profile profile,
 225                  enum pipe_video_chroma_format chroma_format,
 226                  unsigned width, unsigned height)
 227 {
 228    struct sp_mpeg12_context *ctx;
 229
 230    assert(u_reduce_video_profile(profile) == PIPE_VIDEO_CODEC_MPEG12);
 231
 232    ctx = CALLOC_STRUCT(sp_mpeg12_context);
 233
 234    if (!ctx)
 235       return NULL;
 236
 237    ctx->base.profile = profile;
 238    ctx->base.chroma_format = chroma_format;
 239    ctx->base.width = width;
 240    ctx->base.height = height;
 241
 242    ctx->base.screen = screen;
 243    ctx->base.destroy = sp_mpeg12_destroy;
 244    ctx->base.decode_macroblocks = sp_mpeg12_decode_macroblocks;
 245    ctx->base.clear_surface = sp_mpeg12_clear_surface;
 246    ctx->base.render_picture = sp_mpeg12_render_picture;
 247    ctx->base.set_decode_target = sp_mpeg12_set_decode_target;
 248    ctx->base.set_csc_matrix = sp_mpeg12_set_csc_matrix;
 249
 250    ctx->pipe = screen->context_create(screen, NULL);
 251    if (!ctx->pipe) {
 252       FREE(ctx);
 253       return NULL;
 254    }
 255
 256    /* TODO: Use slice buffering for softpipe when implemented, no advantage to buffering an entire picture */
 257    if (!vl_mpeg12_mc_renderer_init(&ctx->mc_renderer, ctx->pipe,
 258                                    width, height, chroma_format,
 259                                    VL_MPEG12_MC_RENDERER_BUFFER_PICTURE,
 260                                    /* TODO: Use XFER_NONE when implemented */
 261                                    VL_MPEG12_MC_RENDERER_EMPTY_BLOCK_XFER_ONE,
 262                                    true)) {
 263       ctx->pipe->destroy(ctx->pipe);
 264       FREE(ctx);
 265       return NULL;
 266    }
 267
 268    if (!vl_compositor_init(&ctx->compositor, ctx->pipe)) {
 269       vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
 270       ctx->pipe->destroy(ctx->pipe);
 271       FREE(ctx);
 272       return NULL;
 273    }
 274
 275    if (!init_pipe_state(ctx)) {
 276       vl_compositor_cleanup(&ctx->compositor);
 277       vl_mpeg12_mc_renderer_cleanup(&ctx->mc_renderer);
 278       ctx->pipe->destroy(ctx->pipe);
 279       FREE(ctx);
 280       return NULL;
 281    }
 282
 283    return &ctx->base;
 284 }
 285
 286 struct pipe_video_context *
 287 sp_video_create(struct pipe_screen *screen, enum pipe_video_profile profile,
 288                 enum pipe_video_chroma_format chroma_format,
 289                 unsigned width, unsigned height)
 290 {
 291    assert(screen);
 292    assert(width && height);
 293
 294    switch (u_reduce_video_profile(profile)) {
 295       case PIPE_VIDEO_CODEC_MPEG12:
 296          return sp_mpeg12_create(screen, profile,
 297                                  chroma_format,
 298                                  width, height);
 299       default:
 300          return NULL;
 301    }
 302 }