vl_compositor.c revision 2cbf532ae13513c3cbc7dad8ae41beeff931529e
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 <assert.h> 29 30#include <pipe/p_compiler.h> 31#include <pipe/p_context.h> 32 33#include <util/u_memory.h> 34#include <util/u_draw.h> 35#include <util/u_surface.h> 36 37#include <tgsi/tgsi_ureg.h> 38 39#include "vl_csc.h" 40#include "vl_types.h" 41#include "vl_compositor.h" 42 43typedef float csc_matrix[16]; 44 45static void * 46create_vert_shader(struct vl_compositor *c) 47{ 48 struct ureg_program *shader; 49 struct ureg_src vpos, vtex; 50 struct ureg_dst o_vpos, o_vtex; 51 52 shader = ureg_create(TGSI_PROCESSOR_VERTEX); 53 if (!shader) 54 return false; 55 56 vpos = ureg_DECL_vs_input(shader, 0); 57 vtex = ureg_DECL_vs_input(shader, 1); 58 o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, 0); 59 o_vtex = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, 1); 60 61 /* 62 * o_vpos = vpos 63 * o_vtex = vtex 64 */ 65 ureg_MOV(shader, o_vpos, vpos); 66 ureg_MOV(shader, o_vtex, vtex); 67 68 ureg_END(shader); 69 70 return ureg_create_shader_and_destroy(shader, c->pipe); 71} 72 73static void * 74create_frag_shader_video_buffer(struct vl_compositor *c) 75{ 76 struct ureg_program *shader; 77 struct ureg_src tc; 78 struct ureg_src csc[3]; 79 struct ureg_src sampler[3]; 80 struct ureg_dst texel; 81 struct ureg_dst fragment; 82 unsigned i; 83 84 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 85 if (!shader) 86 return false; 87 88 tc = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, 1, TGSI_INTERPOLATE_LINEAR); 89 for (i = 0; i < 3; ++i) { 90 csc[i] = ureg_DECL_constant(shader, i); 91 sampler[i] = ureg_DECL_sampler(shader, i); 92 } 93 texel = ureg_DECL_temporary(shader); 94 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 95 96 /* 97 * texel.xyz = tex(tc, sampler[i]) 98 * fragment = csc * texel 99 */ 100 for (i = 0; i < 3; ++i) 101 ureg_TEX(shader, ureg_writemask(texel, TGSI_WRITEMASK_X << i), TGSI_TEXTURE_2D, tc, sampler[i]); 102 103 ureg_MOV(shader, ureg_writemask(texel, TGSI_WRITEMASK_W), ureg_imm1f(shader, 1.0f)); 104 105 for (i = 0; i < 3; ++i) 106 ureg_DP4(shader, ureg_writemask(fragment, TGSI_WRITEMASK_X << i), csc[i], ureg_src(texel)); 107 108 ureg_MOV(shader, ureg_writemask(fragment, TGSI_WRITEMASK_W), ureg_imm1f(shader, 1.0f)); 109 110 ureg_release_temporary(shader, texel); 111 ureg_END(shader); 112 113 return ureg_create_shader_and_destroy(shader, c->pipe); 114} 115 116static void * 117create_frag_shader_palette(struct vl_compositor *c) 118{ 119 struct ureg_program *shader; 120 struct ureg_src csc[3]; 121 struct ureg_src tc; 122 struct ureg_src sampler; 123 struct ureg_src palette; 124 struct ureg_dst texel; 125 struct ureg_dst fragment; 126 unsigned i; 127 128 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 129 if (!shader) 130 return false; 131 132 for (i = 0; i < 3; ++i) 133 csc[i] = ureg_DECL_constant(shader, i); 134 135 tc = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, 1, TGSI_INTERPOLATE_LINEAR); 136 sampler = ureg_DECL_sampler(shader, 0); 137 palette = ureg_DECL_sampler(shader, 1); 138 texel = ureg_DECL_temporary(shader); 139 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 140 141 /* 142 * texel = tex(tc, sampler) 143 * fragment.xyz = tex(texel, palette) * csc 144 * fragment.a = texel.a 145 */ 146 ureg_TEX(shader, texel, TGSI_TEXTURE_2D, tc, sampler); 147 ureg_MUL(shader, ureg_writemask(texel, TGSI_WRITEMASK_X), ureg_src(texel), ureg_imm1f(shader, 15.0f / 16.0f)); 148 ureg_MOV(shader, ureg_writemask(fragment, TGSI_WRITEMASK_W), ureg_src(texel)); 149 150 ureg_TEX(shader, texel, TGSI_TEXTURE_1D, ureg_src(texel), palette); 151 152 for (i = 0; i < 3; ++i) 153 ureg_DP4(shader, ureg_writemask(fragment, TGSI_WRITEMASK_X << i), csc[i], ureg_src(texel)); 154 155 ureg_release_temporary(shader, texel); 156 ureg_END(shader); 157 158 return ureg_create_shader_and_destroy(shader, c->pipe); 159} 160 161static void * 162create_frag_shader_rgba(struct vl_compositor *c) 163{ 164 struct ureg_program *shader; 165 struct ureg_src tc; 166 struct ureg_src sampler; 167 struct ureg_dst fragment; 168 169 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 170 if (!shader) 171 return false; 172 173 tc = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, 1, TGSI_INTERPOLATE_LINEAR); 174 sampler = ureg_DECL_sampler(shader, 0); 175 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 176 177 /* 178 * fragment = tex(tc, sampler) 179 */ 180 ureg_TEX(shader, fragment, TGSI_TEXTURE_2D, tc, sampler); 181 ureg_END(shader); 182 183 return ureg_create_shader_and_destroy(shader, c->pipe); 184} 185 186static bool 187init_shaders(struct vl_compositor *c) 188{ 189 assert(c); 190 191 c->vs = create_vert_shader(c); 192 if (!c->vs) { 193 debug_printf("Unable to create vertex shader.\n"); 194 return false; 195 } 196 197 c->fs_video_buffer = create_frag_shader_video_buffer(c); 198 if (!c->fs_video_buffer) { 199 debug_printf("Unable to create YCbCr-to-RGB fragment shader.\n"); 200 return false; 201 } 202 203 c->fs_palette = create_frag_shader_palette(c); 204 if (!c->fs_palette) { 205 debug_printf("Unable to create Palette-to-RGB fragment shader.\n"); 206 return false; 207 } 208 209 c->fs_rgba = create_frag_shader_rgba(c); 210 if (!c->fs_rgba) { 211 debug_printf("Unable to create RGB-to-RGB fragment shader.\n"); 212 return false; 213 } 214 215 return true; 216} 217 218static void cleanup_shaders(struct vl_compositor *c) 219{ 220 assert(c); 221 222 c->pipe->delete_vs_state(c->pipe, c->vs); 223 c->pipe->delete_fs_state(c->pipe, c->fs_video_buffer); 224 c->pipe->delete_fs_state(c->pipe, c->fs_palette); 225 c->pipe->delete_fs_state(c->pipe, c->fs_rgba); 226} 227 228static bool 229init_pipe_state(struct vl_compositor *c) 230{ 231 struct pipe_rasterizer_state rast; 232 struct pipe_sampler_state sampler; 233 struct pipe_blend_state blend; 234 235 assert(c); 236 237 c->fb_state.nr_cbufs = 1; 238 c->fb_state.zsbuf = NULL; 239 240 c->viewport.scale[2] = 1; 241 c->viewport.scale[3] = 1; 242 c->viewport.translate[2] = 0; 243 c->viewport.translate[3] = 0; 244 245 memset(&sampler, 0, sizeof(sampler)); 246 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 247 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 248 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 249 sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR; 250 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 251 sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR; 252 sampler.compare_mode = PIPE_TEX_COMPARE_NONE; 253 sampler.compare_func = PIPE_FUNC_ALWAYS; 254 sampler.normalized_coords = 1; 255 256 c->sampler_linear = c->pipe->create_sampler_state(c->pipe, &sampler); 257 258 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 259 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 260 c->sampler_nearest = c->pipe->create_sampler_state(c->pipe, &sampler); 261 262 memset(&blend, 0, sizeof blend); 263 blend.independent_blend_enable = 0; 264 blend.rt[0].blend_enable = 1; 265 blend.rt[0].rgb_func = PIPE_BLEND_ADD; 266 blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_SRC_ALPHA; 267 blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_INV_SRC_ALPHA; 268 blend.rt[0].alpha_func = PIPE_BLEND_ADD; 269 blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE; 270 blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE; 271 blend.logicop_enable = 0; 272 blend.logicop_func = PIPE_LOGICOP_CLEAR; 273 blend.rt[0].colormask = PIPE_MASK_RGBA; 274 blend.dither = 0; 275 c->blend = c->pipe->create_blend_state(c->pipe, &blend); 276 277 memset(&rast, 0, sizeof rast); 278 rast.flatshade = 1; 279 rast.front_ccw = 1; 280 rast.cull_face = PIPE_FACE_NONE; 281 rast.fill_back = PIPE_POLYGON_MODE_FILL; 282 rast.fill_front = PIPE_POLYGON_MODE_FILL; 283 rast.scissor = 1; 284 rast.line_width = 1; 285 rast.point_size_per_vertex = 1; 286 rast.offset_units = 1; 287 rast.offset_scale = 1; 288 rast.gl_rasterization_rules = 1; 289 290 c->rast = c->pipe->create_rasterizer_state(c->pipe, &rast); 291 292 return true; 293} 294 295static void cleanup_pipe_state(struct vl_compositor *c) 296{ 297 assert(c); 298 299 c->pipe->delete_sampler_state(c->pipe, c->sampler_linear); 300 c->pipe->delete_sampler_state(c->pipe, c->sampler_nearest); 301 c->pipe->delete_blend_state(c->pipe, c->blend); 302 c->pipe->delete_rasterizer_state(c->pipe, c->rast); 303} 304 305static bool 306create_vertex_buffer(struct vl_compositor *c) 307{ 308 assert(c); 309 310 pipe_resource_reference(&c->vertex_buf.buffer, NULL); 311 c->vertex_buf.buffer = pipe_buffer_create 312 ( 313 c->pipe->screen, 314 PIPE_BIND_VERTEX_BUFFER, 315 PIPE_USAGE_STREAM, 316 sizeof(struct vertex4f) * VL_COMPOSITOR_MAX_LAYERS * 4 317 ); 318 return c->vertex_buf.buffer != NULL; 319} 320 321static bool 322init_buffers(struct vl_compositor *c) 323{ 324 struct pipe_vertex_element vertex_elems[2]; 325 326 assert(c); 327 328 /* 329 * Create our vertex buffer and vertex buffer elements 330 */ 331 c->vertex_buf.stride = sizeof(struct vertex4f); 332 c->vertex_buf.buffer_offset = 0; 333 create_vertex_buffer(c); 334 335 vertex_elems[0].src_offset = 0; 336 vertex_elems[0].instance_divisor = 0; 337 vertex_elems[0].vertex_buffer_index = 0; 338 vertex_elems[0].src_format = PIPE_FORMAT_R32G32_FLOAT; 339 vertex_elems[1].src_offset = sizeof(struct vertex2f); 340 vertex_elems[1].instance_divisor = 0; 341 vertex_elems[1].vertex_buffer_index = 0; 342 vertex_elems[1].src_format = PIPE_FORMAT_R32G32_FLOAT; 343 c->vertex_elems_state = c->pipe->create_vertex_elements_state(c->pipe, 2, vertex_elems); 344 345 /* 346 * Create our fragment shader's constant buffer 347 * Const buffer contains the color conversion matrix and bias vectors 348 */ 349 /* XXX: Create with IMMUTABLE/STATIC... although it does change every once in a long while... */ 350 c->csc_matrix = pipe_buffer_create 351 ( 352 c->pipe->screen, 353 PIPE_BIND_CONSTANT_BUFFER, 354 PIPE_USAGE_STATIC, 355 sizeof(csc_matrix) 356 ); 357 358 return true; 359} 360 361static void 362cleanup_buffers(struct vl_compositor *c) 363{ 364 assert(c); 365 366 c->pipe->delete_vertex_elements_state(c->pipe, c->vertex_elems_state); 367 pipe_resource_reference(&c->vertex_buf.buffer, NULL); 368 pipe_resource_reference(&c->csc_matrix, NULL); 369} 370 371static INLINE struct pipe_video_rect 372default_rect(struct vl_compositor_layer *layer) 373{ 374 struct pipe_resource *res = layer->sampler_views[0]->texture; 375 struct pipe_video_rect rect = { 0, 0, res->width0, res->height0 }; 376 return rect; 377} 378 379static INLINE struct vertex2f 380calc_topleft(struct vertex2f size, struct pipe_video_rect rect) 381{ 382 struct vertex2f res = { rect.x / size.x, rect.y / size.y }; 383 return res; 384} 385 386static INLINE struct vertex2f 387calc_bottomright(struct vertex2f size, struct pipe_video_rect rect) 388{ 389 struct vertex2f res = { (rect.x + rect.w) / size.x, (rect.y + rect.h) / size.y }; 390 return res; 391} 392 393static INLINE void 394calc_src_and_dst(struct vl_compositor_layer *layer, unsigned width, unsigned height, 395 struct pipe_video_rect src, struct pipe_video_rect dst) 396{ 397 struct vertex2f size = { width, height }; 398 399 layer->src.tl = calc_topleft(size, src); 400 layer->src.br = calc_bottomright(size, src); 401 layer->dst.tl = calc_topleft(size, dst); 402 layer->dst.br = calc_bottomright(size, dst); 403} 404 405static void 406gen_rect_verts(struct vertex4f *vb, struct vl_compositor_layer *layer) 407{ 408 assert(vb && layer); 409 410 vb[0].x = layer->dst.tl.x; 411 vb[0].y = layer->dst.tl.y; 412 vb[0].z = layer->src.tl.x; 413 vb[0].w = layer->src.tl.y; 414 415 vb[1].x = layer->dst.br.x; 416 vb[1].y = layer->dst.tl.y; 417 vb[1].z = layer->src.br.x; 418 vb[1].w = layer->src.tl.y; 419 420 vb[2].x = layer->dst.br.x; 421 vb[2].y = layer->dst.br.y; 422 vb[2].z = layer->src.br.x; 423 vb[2].w = layer->src.br.y; 424 425 vb[3].x = layer->dst.tl.x; 426 vb[3].y = layer->dst.br.y; 427 vb[3].z = layer->src.tl.x; 428 vb[3].w = layer->src.br.y; 429} 430 431static void 432gen_vertex_data(struct vl_compositor *c) 433{ 434 struct vertex4f *vb; 435 struct pipe_transfer *buf_transfer; 436 unsigned i; 437 438 assert(c); 439 440 vb = pipe_buffer_map(c->pipe, c->vertex_buf.buffer, 441 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD | PIPE_TRANSFER_DONTBLOCK, 442 &buf_transfer); 443 444 if (!vb) { 445 // If buffer is still locked from last draw create a new one 446 create_vertex_buffer(c); 447 vb = pipe_buffer_map(c->pipe, c->vertex_buf.buffer, 448 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 449 &buf_transfer); 450 } 451 452 for (i = 0; i < VL_COMPOSITOR_MAX_LAYERS; i++) { 453 if (c->used_layers & (1 << i)) { 454 struct vl_compositor_layer *layer = &c->layers[i]; 455 gen_rect_verts(vb, layer); 456 vb += 4; 457 458 if (layer->clearing && 459 c->dirty_tl.x >= layer->dst.tl.x && 460 c->dirty_tl.y >= layer->dst.tl.y && 461 c->dirty_br.x <= layer->dst.br.x && 462 c->dirty_br.y <= layer->dst.br.y) { 463 464 // We clear the dirty area anyway, no need for clear_render_target 465 c->dirty_tl.x = c->dirty_tl.y = 1.0f; 466 c->dirty_br.x = c->dirty_br.y = 0.0f; 467 } 468 } 469 } 470 471 pipe_buffer_unmap(c->pipe, buf_transfer); 472} 473 474static void 475draw_layers(struct vl_compositor *c) 476{ 477 unsigned vb_index, i; 478 479 assert(c); 480 481 for (i = 0, vb_index = 0; i < VL_COMPOSITOR_MAX_LAYERS; ++i) { 482 if (c->used_layers & (1 << i)) { 483 struct vl_compositor_layer *layer = &c->layers[i]; 484 struct pipe_sampler_view **samplers = &layer->sampler_views[0]; 485 unsigned num_sampler_views = !samplers[1] ? 1 : !samplers[2] ? 2 : 3; 486 487 c->pipe->bind_fs_state(c->pipe, layer->fs); 488 c->pipe->bind_fragment_sampler_states(c->pipe, num_sampler_views, layer->samplers); 489 c->pipe->set_fragment_sampler_views(c->pipe, num_sampler_views, samplers); 490 util_draw_arrays(c->pipe, PIPE_PRIM_QUADS, vb_index * 4, 4); 491 vb_index++; 492 493 // Remember the currently drawn area as dirty for the next draw command 494 c->dirty_tl.x = MIN2(layer->dst.tl.x, c->dirty_tl.x); 495 c->dirty_tl.y = MIN2(layer->dst.tl.y, c->dirty_tl.y); 496 c->dirty_br.x = MAX2(layer->dst.br.x, c->dirty_br.x); 497 c->dirty_br.y = MAX2(layer->dst.br.y, c->dirty_br.y); 498 } 499 } 500} 501 502void 503vl_compositor_reset_dirty_area(struct vl_compositor *c) 504{ 505 assert(c); 506 507 c->dirty_tl.x = c->dirty_tl.y = 0.0f; 508 c->dirty_br.x = c->dirty_br.y = 1.0f; 509} 510 511void 512vl_compositor_set_clear_color(struct vl_compositor *c, float color[4]) 513{ 514 unsigned i; 515 516 assert(c); 517 518 for (i = 0; i < 4; ++i) 519 c->clear_color[i] = color[i]; 520} 521 522void 523vl_compositor_clear_layers(struct vl_compositor *c) 524{ 525 unsigned i, j; 526 527 assert(c); 528 529 c->used_layers = 0; 530 for ( i = 0; i < VL_COMPOSITOR_MAX_LAYERS; ++i) { 531 c->layers[i].fs = NULL; 532 for ( j = 0; j < 3; j++) 533 pipe_sampler_view_reference(&c->layers[i].sampler_views[j], NULL); 534 } 535} 536 537void 538vl_compositor_cleanup(struct vl_compositor *c) 539{ 540 assert(c); 541 542 vl_compositor_clear_layers(c); 543 544 cleanup_buffers(c); 545 cleanup_shaders(c); 546 cleanup_pipe_state(c); 547} 548 549void 550vl_compositor_set_csc_matrix(struct vl_compositor *c, const float matrix[16]) 551{ 552 struct pipe_transfer *buf_transfer; 553 554 assert(c); 555 556 memcpy 557 ( 558 pipe_buffer_map(c->pipe, c->csc_matrix, 559 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 560 &buf_transfer), 561 matrix, 562 sizeof(csc_matrix) 563 ); 564 565 pipe_buffer_unmap(c->pipe, buf_transfer); 566} 567 568void 569vl_compositor_set_buffer_layer(struct vl_compositor *c, 570 unsigned layer, 571 struct pipe_video_buffer *buffer, 572 struct pipe_video_rect *src_rect, 573 struct pipe_video_rect *dst_rect) 574{ 575 struct pipe_sampler_view **sampler_views; 576 unsigned i; 577 578 assert(c && buffer); 579 580 assert(layer < VL_COMPOSITOR_MAX_LAYERS); 581 582 c->used_layers |= 1 << layer; 583 c->layers[layer].clearing = true; 584 c->layers[layer].fs = c->fs_video_buffer; 585 586 sampler_views = buffer->get_sampler_view_components(buffer); 587 for (i = 0; i < 3; ++i) { 588 c->layers[layer].samplers[i] = c->sampler_linear; 589 pipe_sampler_view_reference(&c->layers[layer].sampler_views[i], sampler_views[i]); 590 } 591 592 calc_src_and_dst(&c->layers[layer], buffer->width, buffer->height, 593 src_rect ? *src_rect : default_rect(&c->layers[layer]), 594 dst_rect ? *dst_rect : default_rect(&c->layers[layer])); 595} 596 597void 598vl_compositor_set_palette_layer(struct vl_compositor *c, 599 unsigned layer, 600 struct pipe_sampler_view *indexes, 601 struct pipe_sampler_view *palette, 602 struct pipe_video_rect *src_rect, 603 struct pipe_video_rect *dst_rect) 604{ 605 assert(c && indexes && palette); 606 607 assert(layer < VL_COMPOSITOR_MAX_LAYERS); 608 609 c->used_layers |= 1 << layer; 610 c->layers[layer].clearing = false; 611 c->layers[layer].fs = c->fs_palette; 612 c->layers[layer].samplers[0] = c->sampler_linear; 613 c->layers[layer].samplers[1] = c->sampler_nearest; 614 c->layers[layer].samplers[2] = NULL; 615 pipe_sampler_view_reference(&c->layers[layer].sampler_views[0], indexes); 616 pipe_sampler_view_reference(&c->layers[layer].sampler_views[1], palette); 617 pipe_sampler_view_reference(&c->layers[layer].sampler_views[2], NULL); 618 calc_src_and_dst(&c->layers[layer], indexes->texture->width0, indexes->texture->height0, 619 src_rect ? *src_rect : default_rect(&c->layers[layer]), 620 dst_rect ? *dst_rect : default_rect(&c->layers[layer])); 621 622} 623 624void 625vl_compositor_set_rgba_layer(struct vl_compositor *c, 626 unsigned layer, 627 struct pipe_sampler_view *rgba, 628 struct pipe_video_rect *src_rect, 629 struct pipe_video_rect *dst_rect) 630{ 631 assert(c && rgba); 632 633 assert(layer < VL_COMPOSITOR_MAX_LAYERS); 634 635 c->used_layers |= 1 << layer; 636 c->layers[layer].clearing = rgba->swizzle_a == PIPE_SWIZZLE_ONE; 637 c->layers[layer].fs = c->fs_rgba; 638 c->layers[layer].samplers[0] = c->sampler_linear; 639 c->layers[layer].samplers[1] = NULL; 640 c->layers[layer].samplers[2] = NULL; 641 pipe_sampler_view_reference(&c->layers[layer].sampler_views[0], rgba); 642 pipe_sampler_view_reference(&c->layers[layer].sampler_views[1], NULL); 643 pipe_sampler_view_reference(&c->layers[layer].sampler_views[2], NULL); 644 calc_src_and_dst(&c->layers[layer], rgba->texture->width0, rgba->texture->height0, 645 src_rect ? *src_rect : default_rect(&c->layers[layer]), 646 dst_rect ? *dst_rect : default_rect(&c->layers[layer])); 647} 648 649void 650vl_compositor_render(struct vl_compositor *c, 651 enum pipe_mpeg12_picture_type picture_type, 652 struct pipe_surface *dst_surface, 653 struct pipe_video_rect *dst_area, 654 struct pipe_video_rect *dst_clip, 655 struct pipe_fence_handle **fence) 656{ 657 struct pipe_scissor_state scissor; 658 659 assert(c); 660 assert(dst_surface); 661 662 c->fb_state.width = dst_surface->width; 663 c->fb_state.height = dst_surface->height; 664 c->fb_state.cbufs[0] = dst_surface; 665 666 if (dst_area) { 667 c->viewport.scale[0] = dst_area->w; 668 c->viewport.scale[1] = dst_area->h; 669 c->viewport.translate[0] = dst_area->x; 670 c->viewport.translate[1] = dst_area->y; 671 } else { 672 c->viewport.scale[0] = dst_surface->width; 673 c->viewport.scale[1] = dst_surface->height; 674 c->viewport.translate[0] = 0; 675 c->viewport.translate[1] = 0; 676 } 677 678 if (dst_clip) { 679 scissor.minx = dst_clip->x; 680 scissor.miny = dst_clip->y; 681 scissor.maxx = dst_clip->x + dst_clip->w; 682 scissor.maxy = dst_clip->y + dst_clip->h; 683 } else { 684 scissor.minx = 0; 685 scissor.miny = 0; 686 scissor.maxx = dst_surface->width; 687 scissor.maxy = dst_surface->height; 688 } 689 690 gen_vertex_data(c); 691 692 if (c->dirty_tl.x < c->dirty_br.x || c->dirty_tl.y < c->dirty_br.y) { 693 util_clear_render_target(c->pipe, dst_surface, c->clear_color, 0, 0, dst_surface->width, dst_surface->height); 694 c->dirty_tl.x = c->dirty_tl.y = 1.0f; 695 c->dirty_br.x = c->dirty_br.y = 0.0f; 696 } 697 698 c->pipe->set_scissor_state(c->pipe, &scissor); 699 c->pipe->set_framebuffer_state(c->pipe, &c->fb_state); 700 c->pipe->set_viewport_state(c->pipe, &c->viewport); 701 c->pipe->bind_vs_state(c->pipe, c->vs); 702 c->pipe->set_vertex_buffers(c->pipe, 1, &c->vertex_buf); 703 c->pipe->bind_vertex_elements_state(c->pipe, c->vertex_elems_state); 704 c->pipe->set_constant_buffer(c->pipe, PIPE_SHADER_FRAGMENT, 0, c->csc_matrix); 705 c->pipe->bind_blend_state(c->pipe, c->blend); 706 c->pipe->bind_rasterizer_state(c->pipe, c->rast); 707 708 draw_layers(c); 709 710 c->pipe->flush(c->pipe, fence); 711} 712 713bool 714vl_compositor_init(struct vl_compositor *c, struct pipe_context *pipe) 715{ 716 csc_matrix csc_matrix; 717 718 c->pipe = pipe; 719 720 if (!init_pipe_state(c)) 721 return false; 722 723 if (!init_shaders(c)) { 724 cleanup_pipe_state(c); 725 return false; 726 } 727 if (!init_buffers(c)) { 728 cleanup_shaders(c); 729 cleanup_pipe_state(c); 730 return false; 731 } 732 733 vl_compositor_clear_layers(c); 734 735 vl_csc_get_matrix(VL_CSC_COLOR_STANDARD_IDENTITY, NULL, true, csc_matrix); 736 vl_compositor_set_csc_matrix(c, csc_matrix); 737 738 c->clear_color[0] = c->clear_color[1] = 0.0f; 739 c->clear_color[2] = c->clear_color[3] = 0.0f; 740 vl_compositor_reset_dirty_area(c); 741 742 return true; 743} 744