src/gallium/auxiliary/vl/vl_compositor.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 "vl_compositor.h"
  29 #include <assert.h>
  30 #include <pipe/p_context.h>
  31 #include <util/u_inlines.h>
  32 #include <util/u_memory.h>
  33 #include <util/u_keymap.h>
  34 #include <util/u_draw.h>
  35 #include <util/u_sampler.h>
  36 #include <tgsi/tgsi_ureg.h>
  37 #include "vl_csc.h"
  38
  39 struct vertex_shader_consts
  40 {
  41    struct vertex4f dst_scale;
  42    struct vertex4f dst_trans;
  43    struct vertex4f src_scale;
  44    struct vertex4f src_trans;
  45 };
  46
  47 struct fragment_shader_consts
  48 {
  49    float matrix[16];
  50 };
  51
  52 static bool
  53 u_video_rects_equal(struct pipe_video_rect *a, struct pipe_video_rect *b)
  54 {
  55    assert(a && b);
  56
  57    if (a->x != b->x)
  58       return false;
  59    if (a->y != b->y)
  60       return false;
  61    if (a->w != b->w)
  62       return false;
  63    if (a->h != b->h)
  64       return false;
  65
  66    return true;
  67 }
  68
  69 static bool
  70 create_vert_shader(struct vl_compositor *c)
  71 {
  72    struct ureg_program *shader;
  73    struct ureg_src vpos, vtex;
  74    struct ureg_dst o_vpos, o_vtex;
  75
  76    shader = ureg_create(TGSI_PROCESSOR_VERTEX);
  77    if (!shader)
  78       return false;
  79
  80    vpos = ureg_DECL_vs_input(shader, 0);
  81    vtex = ureg_DECL_vs_input(shader, 1);
  82    o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, 0);
  83    o_vtex = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, 1);
  84
  85    /*
  86     * o_vpos = vpos
  87     * o_vtex = vtex
  88     */
  89    ureg_MOV(shader, o_vpos, vpos);
  90    ureg_MOV(shader, o_vtex, vtex);
  91
  92    ureg_END(shader);
  93
  94    c->vertex_shader = ureg_create_shader_and_destroy(shader, c->pipe);
  95    if (!c->vertex_shader)
  96       return false;
  97
  98    return true;
  99 }
 100
 101 static bool
 102 create_frag_shader_ycbcr_2_rgb(struct vl_compositor *c)
 103 {
 104    struct ureg_program *shader;
 105    struct ureg_src tc;
 106    struct ureg_src csc[4];
 107    struct ureg_src sampler;
 108    struct ureg_dst texel;
 109    struct ureg_dst fragment;
 110    unsigned i;
 111
 112    shader = ureg_create(TGSI_PROCESSOR_FRAGMENT);
 113    if (!shader)
 114       return false;
 115
 116    tc = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, 1, TGSI_INTERPOLATE_LINEAR);
 117    for (i = 0; i < 4; ++i)
 118       csc[i] = ureg_DECL_constant(shader, i);
 119    sampler = ureg_DECL_sampler(shader, 0);
 120    texel = ureg_DECL_temporary(shader);
 121    fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
 122
 123    /*
 124     * texel = tex(tc, sampler)
 125     * fragment = csc * texel
 126     */
 127    ureg_TEX(shader, texel, TGSI_TEXTURE_2D, tc, sampler);
 128    for (i = 0; i < 4; ++i)
 129       ureg_DP4(shader, ureg_writemask(fragment, TGSI_WRITEMASK_X << i), csc[i], ureg_src(texel));
 130
 131    ureg_release_temporary(shader, texel);
 132    ureg_END(shader);
 133
 134    c->fragment_shader.ycbcr_2_rgb = ureg_create_shader_and_destroy(shader, c->pipe);
 135    if (!c->fragment_shader.ycbcr_2_rgb)
 136       return false;
 137
 138    return true;
 139 }
 140
 141 static bool
 142 create_frag_shader_rgb_2_rgb(struct vl_compositor *c)
 143 {
 144    struct ureg_program *shader;
 145    struct ureg_src tc;
 146    struct ureg_src sampler;
 147    struct ureg_dst fragment;
 148
 149    shader = ureg_create(TGSI_PROCESSOR_FRAGMENT);
 150    if (!shader)
 151       return false;
 152
 153    tc = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, 1, TGSI_INTERPOLATE_LINEAR);
 154    sampler = ureg_DECL_sampler(shader, 0);
 155    fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
 156
 157    /*
 158     * fragment = tex(tc, sampler)
 159     */
 160    ureg_TEX(shader, fragment, TGSI_TEXTURE_2D, tc, sampler);
 161    ureg_END(shader);
 162
 163    c->fragment_shader.rgb_2_rgb = ureg_create_shader_and_destroy(shader, c->pipe);
 164    if (!c->fragment_shader.rgb_2_rgb)
 165       return false;
 166
 167    return true;
 168 }
 169
 170 static bool
 171 init_pipe_state(struct vl_compositor *c)
 172 {
 173    struct pipe_sampler_state sampler;
 174
 175    assert(c);
 176
 177    c->fb_state.nr_cbufs = 1;
 178    c->fb_state.zsbuf = NULL;
 179
 180    sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 181    sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 182    sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
 183    sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR;
 184    sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
 185    sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR;
 186    sampler.compare_mode = PIPE_TEX_COMPARE_NONE;
 187    sampler.compare_func = PIPE_FUNC_ALWAYS;
 188    sampler.normalized_coords = 1;
 189    /*sampler.lod_bias = ;*/
 190    /*sampler.min_lod = ;*/
 191    /*sampler.max_lod = ;*/
 192    /*sampler.border_color[i] = ;*/
 193    /*sampler.max_anisotropy = ;*/
 194    c->sampler = c->pipe->create_sampler_state(c->pipe, &sampler);
 195
 196    return true;
 197 }
 198
 199 static void cleanup_pipe_state(struct vl_compositor *c)
 200 {
 201    assert(c);
 202
 203    c->pipe->delete_sampler_state(c->pipe, c->sampler);
 204 }
 205
 206 static bool
 207 init_shaders(struct vl_compositor *c)
 208 {
 209    assert(c);
 210
 211    if (!create_vert_shader(c)) {
 212       debug_printf("Unable to create vertex shader.\n");
 213       return false;
 214    }
 215    if (!create_frag_shader_ycbcr_2_rgb(c)) {
 216       debug_printf("Unable to create YCbCr-to-RGB fragment shader.\n");
 217       return false;
 218    }
 219    if (!create_frag_shader_rgb_2_rgb(c)) {
 220       debug_printf("Unable to create RGB-to-RGB fragment shader.\n");
 221       return false;
 222    }
 223
 224    return true;
 225 }
 226
 227 static void cleanup_shaders(struct vl_compositor *c)
 228 {
 229    assert(c);
 230
 231    c->pipe->delete_vs_state(c->pipe, c->vertex_shader);
 232    c->pipe->delete_fs_state(c->pipe, c->fragment_shader.ycbcr_2_rgb);
 233    c->pipe->delete_fs_state(c->pipe, c->fragment_shader.rgb_2_rgb);
 234 }
 235
 236 static bool
 237 init_buffers(struct vl_compositor *c)
 238 {
 239    struct fragment_shader_consts fsc;
 240    struct pipe_vertex_element vertex_elems[2];
 241
 242    assert(c);
 243
 244    /*
 245     * Create our vertex buffer and vertex buffer elements
 246     */
 247    c->vertex_buf.stride = sizeof(struct vertex4f);
 248    c->vertex_buf.max_index = (VL_COMPOSITOR_MAX_LAYERS + 2) * 6 - 1;
 249    c->vertex_buf.buffer_offset = 0;
 250    /* XXX: Create with DYNAMIC or STREAM */
 251    c->vertex_buf.buffer = pipe_buffer_create
 252    (
 253       c->pipe->screen,
 254       PIPE_BIND_VERTEX_BUFFER,
 255       sizeof(struct vertex4f) * (VL_COMPOSITOR_MAX_LAYERS + 2) * 6
 256    );
 257
 258    vertex_elems[0].src_offset = 0;
 259    vertex_elems[0].instance_divisor = 0;
 260    vertex_elems[0].vertex_buffer_index = 0;
 261    vertex_elems[0].src_format = PIPE_FORMAT_R32G32_FLOAT;
 262    vertex_elems[1].src_offset = sizeof(struct vertex2f);
 263    vertex_elems[1].instance_divisor = 0;
 264    vertex_elems[1].vertex_buffer_index = 0;
 265    vertex_elems[1].src_format = PIPE_FORMAT_R32G32_FLOAT;
 266    c->vertex_elems_state = c->pipe->create_vertex_elements_state(c->pipe, 2, vertex_elems);
 267
 268    /*
 269     * Create our fragment shader's constant buffer
 270     * Const buffer contains the color conversion matrix and bias vectors
 271     */
 272    /* XXX: Create with IMMUTABLE/STATIC... although it does change every once in a long while... */
 273    c->fs_const_buf = pipe_buffer_create
 274    (
 275       c->pipe->screen,
 276       PIPE_BIND_CONSTANT_BUFFER,
 277       sizeof(struct fragment_shader_consts)
 278    );
 279
 280    vl_csc_get_matrix(VL_CSC_COLOR_STANDARD_IDENTITY, NULL, true, fsc.matrix);
 281
 282    vl_compositor_set_csc_matrix(c, fsc.matrix);
 283
 284    return true;
 285 }
 286
 287 static void
 288 cleanup_buffers(struct vl_compositor *c)
 289 {
 290    assert(c);
 291
 292    c->pipe->delete_vertex_elements_state(c->pipe, c->vertex_elems_state);
 293    pipe_resource_reference(&c->vertex_buf.buffer, NULL);
 294    pipe_resource_reference(&c->fs_const_buf, NULL);
 295 }
 296
 297 static void
 298 texview_map_delete(const struct keymap *map,
 299                    const void *key, void *data,
 300                    void *user)
 301 {
 302    struct pipe_sampler_view *sv = (struct pipe_sampler_view*)data;
 303
 304    assert(map);
 305    assert(key);
 306    assert(data);
 307    assert(user);
 308
 309    pipe_sampler_view_reference(&sv, NULL);
 310 }
 311
 312 bool vl_compositor_init(struct vl_compositor *compositor, struct pipe_context *pipe)
 313 {
 314    unsigned i;
 315
 316    assert(compositor);
 317
 318    memset(compositor, 0, sizeof(struct vl_compositor));
 319
 320    compositor->pipe = pipe;
 321
 322    compositor->texview_map = util_new_keymap(sizeof(struct pipe_surface*), -1,
 323                                              texview_map_delete);
 324    if (!compositor->texview_map)
 325       return false;
 326
 327    if (!init_pipe_state(compositor)) {
 328       util_delete_keymap(compositor->texview_map, compositor->pipe);
 329       return false;
 330    }
 331    if (!init_shaders(compositor)) {
 332       util_delete_keymap(compositor->texview_map, compositor->pipe);
 333       cleanup_pipe_state(compositor);
 334       return false;
 335    }
 336    if (!init_buffers(compositor)) {
 337       util_delete_keymap(compositor->texview_map, compositor->pipe);
 338       cleanup_shaders(compositor);
 339       cleanup_pipe_state(compositor);
 340       return false;
 341    }
 342
 343    compositor->fb_state.width = 0;
 344    compositor->fb_state.height = 0;
 345    compositor->bg = NULL;
 346    compositor->dirty_bg = false;
 347    for (i = 0; i < VL_COMPOSITOR_MAX_LAYERS; ++i)
 348       compositor->layers[i] = NULL;
 349    compositor->dirty_layers = 0;
 350
 351    return true;
 352 }
 353
 354 void vl_compositor_cleanup(struct vl_compositor *compositor)
 355 {
 356    assert(compositor);
 357
 358    util_delete_keymap(compositor->texview_map, compositor->pipe);
 359    cleanup_buffers(compositor);
 360    cleanup_shaders(compositor);
 361    cleanup_pipe_state(compositor);
 362 }
 363
 364 void vl_compositor_set_background(struct vl_compositor *compositor,
 365                                  struct pipe_surface *bg, struct pipe_video_rect *bg_src_rect)
 366 {
 367    assert(compositor);
 368    assert((bg && bg_src_rect) || (!bg && !bg_src_rect));
 369
 370    if (compositor->bg != bg ||
 371        !u_video_rects_equal(&compositor->bg_src_rect, bg_src_rect)) {
 372       pipe_surface_reference(&compositor->bg, bg);
 373       /*if (!u_video_rects_equal(&compositor->bg_src_rect, bg_src_rect))*/
 374          compositor->bg_src_rect = *bg_src_rect;
 375       compositor->dirty_bg = true;
 376    }
 377 }
 378
 379 void vl_compositor_set_layers(struct vl_compositor *compositor,
 380                               struct pipe_surface *layers[],
 381                               struct pipe_video_rect *src_rects[],
 382                               struct pipe_video_rect *dst_rects[],
 383                               unsigned num_layers)
 384 {
 385    unsigned i;
 386
 387    assert(compositor);
 388    assert(num_layers <= VL_COMPOSITOR_MAX_LAYERS);
 389
 390    for (i = 0; i < num_layers; ++i)
 391    {
 392       assert((layers[i] && src_rects[i] && dst_rects[i]) ||
 393              (!layers[i] && !src_rects[i] && !dst_rects[i]));
 394
 395       if (compositor->layers[i] != layers[i] ||
 396           !u_video_rects_equal(&compositor->layer_src_rects[i], src_rects[i]) ||
 397           !u_video_rects_equal(&compositor->layer_dst_rects[i], dst_rects[i]))
 398       {
 399          pipe_surface_reference(&compositor->layers[i], layers[i]);
 400          /*if (!u_video_rects_equal(&compositor->layer_src_rects[i], src_rects[i]))*/
 401             compositor->layer_src_rects[i] = *src_rects[i];
 402          /*if (!u_video_rects_equal(&compositor->layer_dst_rects[i], dst_rects[i]))*/
 403             compositor->layer_dst_rects[i] = *dst_rects[i];
 404          compositor->dirty_layers |= 1 << i;
 405       }
 406
 407       if (layers[i])
 408          compositor->dirty_layers |= 1 << i;
 409    }
 410
 411    for (; i < VL_COMPOSITOR_MAX_LAYERS; ++i)
 412       pipe_surface_reference(&compositor->layers[i], NULL);
 413 }
 414
 415 static void gen_rect_verts(unsigned pos,
 416                            struct pipe_video_rect *src_rect,
 417                            struct vertex2f *src_inv_size,
 418                            struct pipe_video_rect *dst_rect,
 419                            struct vertex2f *dst_inv_size,
 420                            struct vertex4f *vb)
 421 {
 422    assert(pos < VL_COMPOSITOR_MAX_LAYERS + 2);
 423    assert(src_rect);
 424    assert(src_inv_size);
 425    assert((dst_rect && dst_inv_size) /*|| (!dst_rect && !dst_inv_size)*/);
 426    assert(vb);
 427
 428    vb[pos * 6 + 0].x = dst_rect->x * dst_inv_size->x;
 429    vb[pos * 6 + 0].y = dst_rect->y * dst_inv_size->y;
 430    vb[pos * 6 + 0].z = src_rect->x * src_inv_size->x;
 431    vb[pos * 6 + 0].w = src_rect->y * src_inv_size->y;
 432
 433    vb[pos * 6 + 1].x = dst_rect->x * dst_inv_size->x;
 434    vb[pos * 6 + 1].y = (dst_rect->y + dst_rect->h) * dst_inv_size->y;
 435    vb[pos * 6 + 1].z = src_rect->x * src_inv_size->x;
 436    vb[pos * 6 + 1].w = (src_rect->y + src_rect->h) * src_inv_size->y;
 437
 438    vb[pos * 6 + 2].x = (dst_rect->x + dst_rect->w) * dst_inv_size->x;
 439    vb[pos * 6 + 2].y = dst_rect->y * dst_inv_size->y;
 440    vb[pos * 6 + 2].z = (src_rect->x + src_rect->w) * src_inv_size->x;
 441    vb[pos * 6 + 2].w = src_rect->y * src_inv_size->y;
 442
 443    vb[pos * 6 + 3].x = (dst_rect->x + dst_rect->w) * dst_inv_size->x;
 444    vb[pos * 6 + 3].y = dst_rect->y * dst_inv_size->y;
 445    vb[pos * 6 + 3].z = (src_rect->x + src_rect->w) * src_inv_size->x;
 446    vb[pos * 6 + 3].w = src_rect->y * src_inv_size->y;
 447
 448    vb[pos * 6 + 4].x = dst_rect->x * dst_inv_size->x;
 449    vb[pos * 6 + 4].y = (dst_rect->y + dst_rect->h) * dst_inv_size->y;
 450    vb[pos * 6 + 4].z = src_rect->x * src_inv_size->x;
 451    vb[pos * 6 + 4].w = (src_rect->y + src_rect->h) * src_inv_size->y;
 452
 453    vb[pos * 6 + 5].x = (dst_rect->x + dst_rect->w) * dst_inv_size->x;
 454    vb[pos * 6 + 5].y = (dst_rect->y + dst_rect->h) * dst_inv_size->y;
 455    vb[pos * 6 + 5].z = (src_rect->x + src_rect->w) * src_inv_size->x;
 456    vb[pos * 6 + 5].w = (src_rect->y + src_rect->h) * src_inv_size->y;
 457 }
 458
 459 static unsigned gen_data(struct vl_compositor *c,
 460                          struct pipe_surface *src_surface,
 461                          struct pipe_video_rect *src_rect,
 462                          struct pipe_video_rect *dst_rect,
 463                          struct pipe_surface **textures,
 464                          void **frag_shaders)
 465 {
 466    void *vb;
 467    struct pipe_transfer *buf_transfer;
 468    unsigned num_rects = 0;
 469    unsigned i;
 470
 471    assert(c);
 472    assert(src_surface);
 473    assert(src_rect);
 474    assert(dst_rect);
 475    assert(textures);
 476
 477    vb = pipe_buffer_map(c->pipe, c->vertex_buf.buffer,
 478                         PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD,
 479                         &buf_transfer);
 480
 481    if (!vb)
 482       return 0;
 483
 484    if (c->dirty_bg) {
 485       struct vertex2f bg_inv_size = {1.0f / c->bg->width, 1.0f / c->bg->height};
 486       gen_rect_verts(num_rects, &c->bg_src_rect, &bg_inv_size, NULL, NULL, vb);
 487       textures[num_rects] = c->bg;
 488       /* XXX: Hack */
 489       frag_shaders[num_rects] = c->fragment_shader.rgb_2_rgb;
 490       ++num_rects;
 491       c->dirty_bg = false;
 492    }
 493
 494    {
 495       struct vertex2f src_inv_size = { 1.0f / src_surface->width, 1.0f / src_surface->height};
 496       gen_rect_verts(num_rects, src_rect, &src_inv_size, dst_rect, &c->fb_inv_size, vb);
 497       textures[num_rects] = src_surface;
 498       /* XXX: Hack, sort of */
 499       frag_shaders[num_rects] = c->fragment_shader.ycbcr_2_rgb;
 500       ++num_rects;
 501    }
 502
 503    for (i = 0; c->dirty_layers > 0; i++) {
 504       assert(i < VL_COMPOSITOR_MAX_LAYERS);
 505
 506       if (c->dirty_layers & (1 << i)) {
 507          struct vertex2f layer_inv_size = {1.0f / c->layers[i]->width, 1.0f / c->layers[i]->height};
 508          gen_rect_verts(num_rects, &c->layer_src_rects[i], &layer_inv_size,
 509                         &c->layer_dst_rects[i], &c->fb_inv_size, vb);
 510          textures[num_rects] = c->layers[i];
 511          /* XXX: Hack */
 512          frag_shaders[num_rects] = c->fragment_shader.rgb_2_rgb;
 513          ++num_rects;
 514          c->dirty_layers &= ~(1 << i);
 515       }
 516    }
 517
 518    pipe_buffer_unmap(c->pipe, c->vertex_buf.buffer, buf_transfer);
 519
 520    return num_rects;
 521 }
 522
 523 static void draw_layers(struct vl_compositor *c,
 524                         struct pipe_surface *src_surface,
 525                         struct pipe_video_rect *src_rect,
 526                         struct pipe_video_rect *dst_rect)
 527 {
 528    unsigned num_rects;
 529    struct pipe_surface *src_surfaces[VL_COMPOSITOR_MAX_LAYERS + 2];
 530    void *frag_shaders[VL_COMPOSITOR_MAX_LAYERS + 2];
 531    unsigned i;
 532
 533    assert(c);
 534    assert(src_surface);
 535    assert(src_rect);
 536    assert(dst_rect);
 537
 538    num_rects = gen_data(c, src_surface, src_rect, dst_rect, src_surfaces, frag_shaders);
 539
 540    for (i = 0; i < num_rects; ++i) {
 541       boolean delete_view = FALSE;
 542       struct pipe_sampler_view *surface_view = (struct pipe_sampler_view*)util_keymap_lookup(c->texview_map,
 543                                                                                              &src_surfaces[i]);
 544       if (!surface_view) {
 545          struct pipe_sampler_view templat;
 546          u_sampler_view_default_template(&templat, src_surfaces[i]->texture,
 547                                          src_surfaces[i]->texture->format);
 548          surface_view = c->pipe->create_sampler_view(c->pipe, src_surfaces[i]->texture,
 549                                                      &templat);
 550          if (!surface_view)
 551             return;
 552
 553          delete_view = !util_keymap_insert(c->texview_map, &src_surfaces[i],
 554                                            surface_view, c->pipe);
 555       }
 556
 557       c->pipe->bind_fs_state(c->pipe, frag_shaders[i]);
 558       c->pipe->set_fragment_sampler_views(c->pipe, 1, &surface_view);
 559
 560
 561           util_draw_arrays(c->pipe,PIPE_PRIM_TRIANGLES,i * 6,6);
 562
 563       if (delete_view) {
 564          pipe_sampler_view_reference(&surface_view, NULL);
 565       }
 566    }
 567 }
 568
 569 void vl_compositor_render(struct vl_compositor          *compositor,
 570                           struct pipe_surface           *src_surface,
 571                           enum pipe_mpeg12_picture_type picture_type,
 572                           /*unsigned                    num_past_surfaces,
 573                           struct pipe_surface           *past_surfaces,
 574                           unsigned                      num_future_surfaces,
 575                           struct pipe_surface           *future_surfaces,*/
 576                           struct pipe_video_rect        *src_area,
 577                           struct pipe_surface           *dst_surface,
 578                           struct pipe_video_rect        *dst_area,
 579                           struct pipe_fence_handle      **fence)
 580 {
 581    assert(compositor);
 582    assert(src_surface);
 583    assert(src_area);
 584    assert(dst_surface);
 585    assert(dst_area);
 586    assert(picture_type == PIPE_MPEG12_PICTURE_TYPE_FRAME);
 587
 588    if (compositor->fb_state.width != dst_surface->width) {
 589       compositor->fb_inv_size.x = 1.0f / dst_surface->width;
 590       compositor->fb_state.width = dst_surface->width;
 591    }
 592    if (compositor->fb_state.height != dst_surface->height) {
 593       compositor->fb_inv_size.y = 1.0f / dst_surface->height;
 594       compositor->fb_state.height = dst_surface->height;
 595    }
 596
 597    compositor->fb_state.cbufs[0] = dst_surface;
 598
 599    compositor->viewport.scale[0] = compositor->fb_state.width;
 600    compositor->viewport.scale[1] = compositor->fb_state.height;
 601    compositor->viewport.scale[2] = 1;
 602    compositor->viewport.scale[3] = 1;
 603    compositor->viewport.translate[0] = 0;
 604    compositor->viewport.translate[1] = 0;
 605    compositor->viewport.translate[2] = 0;
 606    compositor->viewport.translate[3] = 0;
 607
 608    compositor->pipe->set_framebuffer_state(compositor->pipe, &compositor->fb_state);
 609    compositor->pipe->set_viewport_state(compositor->pipe, &compositor->viewport);
 610    compositor->pipe->bind_fragment_sampler_states(compositor->pipe, 1, &compositor->sampler);
 611    compositor->pipe->bind_vs_state(compositor->pipe, compositor->vertex_shader);
 612    compositor->pipe->set_vertex_buffers(compositor->pipe, 1, &compositor->vertex_buf);
 613    compositor->pipe->bind_vertex_elements_state(compositor->pipe, compositor->vertex_elems_state);
 614    compositor->pipe->set_constant_buffer(compositor->pipe, PIPE_SHADER_FRAGMENT, 0, compositor->fs_const_buf);
 615
 616    draw_layers(compositor, src_surface, src_area, dst_area);
 617
 618    assert(!compositor->dirty_bg && !compositor->dirty_layers);
 619    compositor->pipe->flush(compositor->pipe, PIPE_FLUSH_RENDER_CACHE, fence);
 620 }
 621
 622 void vl_compositor_set_csc_matrix(struct vl_compositor *compositor, const float *mat)
 623 {
 624    struct pipe_transfer *buf_transfer;
 625
 626    assert(compositor);
 627
 628    memcpy
 629    (
 630       pipe_buffer_map(compositor->pipe, compositor->fs_const_buf,
 631                       PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD,
 632                       &buf_transfer),
 633                 mat,
 634                 sizeof(struct fragment_shader_consts)
 635    );
 636
 637    pipe_buffer_unmap(compositor->pipe, compositor->fs_const_buf,
 638                      buf_transfer);
 639 }