1/********************************************************** 2 * Copyright 2009-2011 VMware, Inc. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person 5 * obtaining a copy of this software and associated documentation 6 * files (the "Software"), to deal in the Software without 7 * restriction, including without limitation the rights to use, copy, 8 * modify, merge, publish, distribute, sublicense, and/or sell copies 9 * of the Software, and to permit persons to whom the Software is 10 * furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 * 24 ********************************************************* 25 * Authors: 26 * Zack Rusin <zackr-at-vmware-dot-com> 27 */ 28 29#include "xa_context.h" 30#include "xa_priv.h" 31#include <math.h> 32#include "cso_cache/cso_context.h" 33#include "util/u_inlines.h" 34#include "util/u_sampler.h" 35#include "util/u_draw_quad.h" 36 37#define floatsEqual(x, y) (fabs(x - y) <= 0.00001f * MIN2(fabs(x), fabs(y))) 38#define floatIsZero(x) (floatsEqual((x) + 1, 1)) 39 40#define NUM_COMPONENTS 4 41 42void 43 44 45renderer_set_constants(struct xa_context *r, 46 int shader_type, const float *params, int param_bytes); 47 48static inline boolean 49is_affine(const float *matrix) 50{ 51 return floatIsZero(matrix[2]) && floatIsZero(matrix[5]) 52 && floatsEqual(matrix[8], 1); 53} 54 55static inline void 56map_point(const float *mat, float x, float y, float *out_x, float *out_y) 57{ 58 if (!mat) { 59 *out_x = x; 60 *out_y = y; 61 return; 62 } 63 64 *out_x = mat[0] * x + mat[3] * y + mat[6]; 65 *out_y = mat[1] * x + mat[4] * y + mat[7]; 66 if (!is_affine(mat)) { 67 float w = 1 / (mat[2] * x + mat[5] * y + mat[8]); 68 69 *out_x *= w; 70 *out_y *= w; 71 } 72} 73 74static inline void 75renderer_draw(struct xa_context *r) 76{ 77 int num_verts = r->buffer_size / (r->attrs_per_vertex * NUM_COMPONENTS); 78 79 if (!r->buffer_size) 80 return; 81 82 if (!r->scissor_valid) { 83 r->scissor.minx = 0; 84 r->scissor.miny = 0; 85 r->scissor.maxx = r->dst->tex->width0; 86 r->scissor.maxy = r->dst->tex->height0; 87 } 88 89 r->pipe->set_scissor_states(r->pipe, 0, 1, &r->scissor); 90 91 cso_set_vertex_elements(r->cso, r->attrs_per_vertex, r->velems); 92 util_draw_user_vertex_buffer(r->cso, r->buffer, PIPE_PRIM_QUADS, 93 num_verts, /* verts */ 94 r->attrs_per_vertex); /* attribs/vert */ 95 r->buffer_size = 0; 96 97 xa_scissor_reset(r); 98} 99 100static inline void 101renderer_draw_conditional(struct xa_context *r, int next_batch) 102{ 103 if (r->buffer_size + next_batch >= XA_VB_SIZE || 104 (next_batch == 0 && r->buffer_size)) { 105 renderer_draw(r); 106 } 107} 108 109void 110renderer_init_state(struct xa_context *r) 111{ 112 struct pipe_depth_stencil_alpha_state dsa; 113 struct pipe_rasterizer_state raster; 114 unsigned i; 115 116 /* set common initial clip state */ 117 memset(&dsa, 0, sizeof(struct pipe_depth_stencil_alpha_state)); 118 cso_set_depth_stencil_alpha(r->cso, &dsa); 119 120 /* XXX: move to renderer_init_state? */ 121 memset(&raster, 0, sizeof(struct pipe_rasterizer_state)); 122 raster.half_pixel_center = 1; 123 raster.bottom_edge_rule = 1; 124 raster.depth_clip_near = 1; 125 raster.depth_clip_far = 1; 126 raster.scissor = 1; 127 cso_set_rasterizer(r->cso, &raster); 128 129 /* vertex elements state */ 130 memset(&r->velems[0], 0, sizeof(r->velems[0]) * 3); 131 for (i = 0; i < 3; i++) { 132 r->velems[i].src_offset = i * 4 * sizeof(float); 133 r->velems[i].instance_divisor = 0; 134 r->velems[i].vertex_buffer_index = 0; 135 r->velems[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; 136 } 137} 138 139static inline void 140add_vertex_none(struct xa_context *r, float x, float y) 141{ 142 float *vertex = r->buffer + r->buffer_size; 143 144 vertex[0] = x; 145 vertex[1] = y; 146 vertex[2] = 0.f; /*z */ 147 vertex[3] = 1.f; /*w */ 148 149 r->buffer_size += 4; 150} 151 152static inline void 153add_vertex_1tex(struct xa_context *r, float x, float y, float s, float t) 154{ 155 float *vertex = r->buffer + r->buffer_size; 156 157 vertex[0] = x; 158 vertex[1] = y; 159 vertex[2] = 0.f; /*z */ 160 vertex[3] = 1.f; /*w */ 161 162 vertex[4] = s; /*s */ 163 vertex[5] = t; /*t */ 164 vertex[6] = 0.f; /*r */ 165 vertex[7] = 1.f; /*q */ 166 167 r->buffer_size += 8; 168} 169 170static inline void 171add_vertex_2tex(struct xa_context *r, 172 float x, float y, float s0, float t0, float s1, float t1) 173{ 174 float *vertex = r->buffer + r->buffer_size; 175 176 vertex[0] = x; 177 vertex[1] = y; 178 vertex[2] = 0.f; /*z */ 179 vertex[3] = 1.f; /*w */ 180 181 vertex[4] = s0; /*s */ 182 vertex[5] = t0; /*t */ 183 vertex[6] = 0.f; /*r */ 184 vertex[7] = 1.f; /*q */ 185 186 vertex[8] = s1; /*s */ 187 vertex[9] = t1; /*t */ 188 vertex[10] = 0.f; /*r */ 189 vertex[11] = 1.f; /*q */ 190 191 r->buffer_size += 12; 192} 193 194static void 195compute_src_coords(float sx, float sy, const struct pipe_resource *src, 196 const float *src_matrix, 197 float width, float height, 198 float tc0[2], float tc1[2], float tc2[2], float tc3[2]) 199{ 200 tc0[0] = sx; 201 tc0[1] = sy; 202 tc1[0] = sx + width; 203 tc1[1] = sy; 204 tc2[0] = sx + width; 205 tc2[1] = sy + height; 206 tc3[0] = sx; 207 tc3[1] = sy + height; 208 209 if (src_matrix) { 210 map_point(src_matrix, tc0[0], tc0[1], &tc0[0], &tc0[1]); 211 map_point(src_matrix, tc1[0], tc1[1], &tc1[0], &tc1[1]); 212 map_point(src_matrix, tc2[0], tc2[1], &tc2[0], &tc2[1]); 213 map_point(src_matrix, tc3[0], tc3[1], &tc3[0], &tc3[1]); 214 } 215 216 tc0[0] /= src->width0; 217 tc1[0] /= src->width0; 218 tc2[0] /= src->width0; 219 tc3[0] /= src->width0; 220 tc0[1] /= src->height0; 221 tc1[1] /= src->height0; 222 tc2[1] /= src->height0; 223 tc3[1] /= src->height0; 224} 225 226static void 227add_vertex_data1(struct xa_context *r, 228 float srcX, float srcY, float dstX, float dstY, 229 float width, float height, 230 const struct pipe_resource *src, const float *src_matrix) 231{ 232 float tc0[2], tc1[2], tc2[2], tc3[2]; 233 234 compute_src_coords(srcX, srcY, src, src_matrix, width, height, 235 tc0, tc1, tc2, tc3); 236 /* 1st vertex */ 237 add_vertex_1tex(r, dstX, dstY, tc0[0], tc0[1]); 238 /* 2nd vertex */ 239 add_vertex_1tex(r, dstX + width, dstY, tc1[0], tc1[1]); 240 /* 3rd vertex */ 241 add_vertex_1tex(r, dstX + width, dstY + height, tc2[0], tc2[1]); 242 /* 4th vertex */ 243 add_vertex_1tex(r, dstX, dstY + height, tc3[0], tc3[1]); 244} 245 246static void 247add_vertex_data2(struct xa_context *r, 248 float srcX, float srcY, float maskX, float maskY, 249 float dstX, float dstY, float width, float height, 250 struct pipe_resource *src, 251 struct pipe_resource *mask, 252 const float *src_matrix, const float *mask_matrix) 253{ 254 float spt0[2], spt1[2], spt2[2], spt3[2]; 255 float mpt0[2], mpt1[2], mpt2[2], mpt3[2]; 256 257 compute_src_coords(srcX, srcY, src, src_matrix, width, height, 258 spt0, spt1, spt2, spt3); 259 compute_src_coords(maskX, maskY, mask, mask_matrix, width, height, 260 mpt0, mpt1, mpt2, mpt3); 261 262 /* 1st vertex */ 263 add_vertex_2tex(r, dstX, dstY, 264 spt0[0], spt0[1], mpt0[0], mpt0[1]); 265 /* 2nd vertex */ 266 add_vertex_2tex(r, dstX + width, dstY, 267 spt1[0], spt1[1], mpt1[0], mpt1[1]); 268 /* 3rd vertex */ 269 add_vertex_2tex(r, dstX + width, dstY + height, 270 spt2[0], spt2[1], mpt2[0], mpt2[1]); 271 /* 4th vertex */ 272 add_vertex_2tex(r, dstX, dstY + height, 273 spt3[0], spt3[1], mpt3[0], mpt3[1]); 274} 275 276static void 277setup_vertex_data_yuv(struct xa_context *r, 278 float srcX, 279 float srcY, 280 float srcW, 281 float srcH, 282 float dstX, 283 float dstY, 284 float dstW, float dstH, struct xa_surface *srf[]) 285{ 286 float s0, t0, s1, t1; 287 float spt0[2], spt1[2]; 288 struct pipe_resource *tex; 289 290 spt0[0] = srcX; 291 spt0[1] = srcY; 292 spt1[0] = srcX + srcW; 293 spt1[1] = srcY + srcH; 294 295 tex = srf[0]->tex; 296 s0 = spt0[0] / tex->width0; 297 t0 = spt0[1] / tex->height0; 298 s1 = spt1[0] / tex->width0; 299 t1 = spt1[1] / tex->height0; 300 301 /* 1st vertex */ 302 add_vertex_1tex(r, dstX, dstY, s0, t0); 303 /* 2nd vertex */ 304 add_vertex_1tex(r, dstX + dstW, dstY, s1, t0); 305 /* 3rd vertex */ 306 add_vertex_1tex(r, dstX + dstW, dstY + dstH, s1, t1); 307 /* 4th vertex */ 308 add_vertex_1tex(r, dstX, dstY + dstH, s0, t1); 309} 310 311/* Set up framebuffer, viewport and vertex shader constant buffer 312 * state for a particular destinaton surface. In all our rendering, 313 * these concepts are linked. 314 */ 315void 316renderer_bind_destination(struct xa_context *r, 317 struct pipe_surface *surface) 318{ 319 int width = surface->width; 320 int height = surface->height; 321 322 struct pipe_framebuffer_state fb; 323 struct pipe_viewport_state viewport; 324 325 xa_scissor_reset(r); 326 327 /* Framebuffer uses actual surface width/height 328 */ 329 memset(&fb, 0, sizeof fb); 330 fb.width = surface->width; 331 fb.height = surface->height; 332 fb.nr_cbufs = 1; 333 fb.cbufs[0] = surface; 334 fb.zsbuf = 0; 335 336 /* Viewport just touches the bit we're interested in: 337 */ 338 viewport.scale[0] = width / 2.f; 339 viewport.scale[1] = height / 2.f; 340 viewport.scale[2] = 1.0; 341 viewport.translate[0] = width / 2.f; 342 viewport.translate[1] = height / 2.f; 343 viewport.translate[2] = 0.0; 344 345 /* Constant buffer set up to match viewport dimensions: 346 */ 347 if (r->fb_width != width || r->fb_height != height) { 348 float vs_consts[8] = { 349 2.f / width, 2.f / height, 1, 1, 350 -1, -1, 0, 0 351 }; 352 353 r->fb_width = width; 354 r->fb_height = height; 355 356 renderer_set_constants(r, PIPE_SHADER_VERTEX, 357 vs_consts, sizeof vs_consts); 358 } 359 360 cso_set_framebuffer(r->cso, &fb); 361 cso_set_viewport(r->cso, &viewport); 362} 363 364void 365renderer_set_constants(struct xa_context *r, 366 int shader_type, const float *params, int param_bytes) 367{ 368 struct pipe_resource **cbuf = 369 (shader_type == PIPE_SHADER_VERTEX) ? &r->vs_const_buffer : 370 &r->fs_const_buffer; 371 372 pipe_resource_reference(cbuf, NULL); 373 *cbuf = pipe_buffer_create_const0(r->pipe->screen, 374 PIPE_BIND_CONSTANT_BUFFER, 375 PIPE_USAGE_DEFAULT, 376 param_bytes); 377 378 if (*cbuf) { 379 pipe_buffer_write(r->pipe, *cbuf, 0, param_bytes, params); 380 } 381 pipe_set_constant_buffer(r->pipe, shader_type, 0, *cbuf); 382} 383 384void 385renderer_copy_prepare(struct xa_context *r, 386 struct pipe_surface *dst_surface, 387 struct pipe_resource *src_texture, 388 const enum xa_formats src_xa_format, 389 const enum xa_formats dst_xa_format) 390{ 391 struct pipe_context *pipe = r->pipe; 392 struct pipe_screen *screen = pipe->screen; 393 struct xa_shader shader; 394 uint32_t fs_traits = FS_COMPOSITE; 395 396 assert(screen->is_format_supported(screen, dst_surface->format, 397 PIPE_TEXTURE_2D, 0, 0, 398 PIPE_BIND_RENDER_TARGET)); 399 (void)screen; 400 401 renderer_bind_destination(r, dst_surface); 402 403 /* set misc state we care about */ 404 { 405 struct pipe_blend_state blend; 406 407 memset(&blend, 0, sizeof(blend)); 408 blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE; 409 blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE; 410 blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ZERO; 411 blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ZERO; 412 blend.rt[0].colormask = PIPE_MASK_RGBA; 413 cso_set_blend(r->cso, &blend); 414 } 415 416 /* sampler */ 417 { 418 struct pipe_sampler_state sampler; 419 const struct pipe_sampler_state *p_sampler = &sampler; 420 421 memset(&sampler, 0, sizeof(sampler)); 422 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 423 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 424 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 425 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 426 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 427 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 428 sampler.normalized_coords = 1; 429 cso_set_samplers(r->cso, PIPE_SHADER_FRAGMENT, 1, &p_sampler); 430 r->num_bound_samplers = 1; 431 } 432 433 /* texture/sampler view */ 434 { 435 struct pipe_sampler_view templ; 436 struct pipe_sampler_view *src_view; 437 438 u_sampler_view_default_template(&templ, 439 src_texture, src_texture->format); 440 src_view = pipe->create_sampler_view(pipe, src_texture, &templ); 441 cso_set_sampler_views(r->cso, PIPE_SHADER_FRAGMENT, 1, &src_view); 442 pipe_sampler_view_reference(&src_view, NULL); 443 } 444 445 /* shaders */ 446 if (src_texture->format == PIPE_FORMAT_L8_UNORM || 447 src_texture->format == PIPE_FORMAT_R8_UNORM) 448 fs_traits |= FS_SRC_LUMINANCE; 449 if (dst_surface->format == PIPE_FORMAT_L8_UNORM || 450 dst_surface->format == PIPE_FORMAT_R8_UNORM) 451 fs_traits |= FS_DST_LUMINANCE; 452 if (xa_format_a(dst_xa_format) != 0 && 453 xa_format_a(src_xa_format) == 0) 454 fs_traits |= FS_SRC_SET_ALPHA; 455 456 shader = xa_shaders_get(r->shaders, VS_COMPOSITE, fs_traits); 457 cso_set_vertex_shader_handle(r->cso, shader.vs); 458 cso_set_fragment_shader_handle(r->cso, shader.fs); 459 460 r->buffer_size = 0; 461 r->attrs_per_vertex = 2; 462} 463 464void 465renderer_copy(struct xa_context *r, 466 int dx, 467 int dy, 468 int sx, 469 int sy, 470 int width, int height, float src_width, float src_height) 471{ 472 float s0, t0, s1, t1; 473 float x0, y0, x1, y1; 474 475 /* XXX: could put the texcoord scaling calculation into the vertex 476 * shader. 477 */ 478 s0 = sx / src_width; 479 s1 = (sx + width) / src_width; 480 t0 = sy / src_height; 481 t1 = (sy + height) / src_height; 482 483 x0 = dx; 484 x1 = dx + width; 485 y0 = dy; 486 y1 = dy + height; 487 488 /* draw quad */ 489 renderer_draw_conditional(r, 4 * 8); 490 add_vertex_1tex(r, x0, y0, s0, t0); 491 add_vertex_1tex(r, x1, y0, s1, t0); 492 add_vertex_1tex(r, x1, y1, s1, t1); 493 add_vertex_1tex(r, x0, y1, s0, t1); 494} 495 496void 497renderer_draw_yuv(struct xa_context *r, 498 float src_x, 499 float src_y, 500 float src_w, 501 float src_h, 502 int dst_x, 503 int dst_y, int dst_w, int dst_h, struct xa_surface *srf[]) 504{ 505 const int num_attribs = 2; /*pos + tex coord */ 506 507 setup_vertex_data_yuv(r, 508 src_x, src_y, src_w, src_h, 509 dst_x, dst_y, dst_w, dst_h, srf); 510 511 if (!r->scissor_valid) { 512 r->scissor.minx = 0; 513 r->scissor.miny = 0; 514 r->scissor.maxx = r->dst->tex->width0; 515 r->scissor.maxy = r->dst->tex->height0; 516 } 517 518 r->pipe->set_scissor_states(r->pipe, 0, 1, &r->scissor); 519 520 cso_set_vertex_elements(r->cso, num_attribs, r->velems); 521 util_draw_user_vertex_buffer(r->cso, r->buffer, PIPE_PRIM_QUADS, 522 4, /* verts */ 523 num_attribs); /* attribs/vert */ 524 r->buffer_size = 0; 525 526 xa_scissor_reset(r); 527} 528 529void 530renderer_begin_solid(struct xa_context *r) 531{ 532 r->buffer_size = 0; 533 r->attrs_per_vertex = 1; 534 renderer_set_constants(r, PIPE_SHADER_FRAGMENT, r->solid_color, 535 4 * sizeof(float)); 536} 537 538void 539renderer_solid(struct xa_context *r, 540 int x0, int y0, int x1, int y1) 541{ 542 /* 543 * debug_printf("solid rect[(%d, %d), (%d, %d)], rgba[%f, %f, %f, %f]\n", 544 * x0, y0, x1, y1, color[0], color[1], color[2], color[3]); */ 545 546 renderer_draw_conditional(r, 4 * 4); 547 548 /* 1st vertex */ 549 add_vertex_none(r, x0, y0); 550 /* 2nd vertex */ 551 add_vertex_none(r, x1, y0); 552 /* 3rd vertex */ 553 add_vertex_none(r, x1, y1); 554 /* 4th vertex */ 555 add_vertex_none(r, x0, y1); 556} 557 558void 559renderer_draw_flush(struct xa_context *r) 560{ 561 renderer_draw_conditional(r, 0); 562} 563 564void 565renderer_begin_textures(struct xa_context *r) 566{ 567 r->attrs_per_vertex = 1 + r->num_bound_samplers; 568 r->buffer_size = 0; 569 if (r->has_solid_src || r->has_solid_mask) 570 renderer_set_constants(r, PIPE_SHADER_FRAGMENT, r->solid_color, 571 4 * sizeof(float)); 572} 573 574void 575renderer_texture(struct xa_context *r, 576 int *pos, 577 int width, int height, 578 const float *src_matrix, 579 const float *mask_matrix) 580{ 581 struct pipe_sampler_view **sampler_view = r->bound_sampler_views; 582 583#if 0 584 if (src_matrix) { 585 debug_printf("src_matrix = \n"); 586 debug_printf("%f, %f, %f\n", src_matrix[0], src_matrix[1], src_matrix[2]); 587 debug_printf("%f, %f, %f\n", src_matrix[3], src_matrix[4], src_matrix[5]); 588 debug_printf("%f, %f, %f\n", src_matrix[6], src_matrix[7], src_matrix[8]); 589 } 590 if (mask_matrix) { 591 debug_printf("mask_matrix = \n"); 592 debug_printf("%f, %f, %f\n", mask_matrix[0], mask_matrix[1], mask_matrix[2]); 593 debug_printf("%f, %f, %f\n", mask_matrix[3], mask_matrix[4], mask_matrix[5]); 594 debug_printf("%f, %f, %f\n", mask_matrix[6], mask_matrix[7], mask_matrix[8]); 595 } 596#endif 597 598 switch(r->attrs_per_vertex) { 599 case 2: 600 renderer_draw_conditional(r, 4 * 8); 601 if (!r->has_solid_src) { 602 add_vertex_data1(r, 603 pos[0], pos[1], /* src */ 604 pos[4], pos[5], /* dst */ 605 width, height, 606 sampler_view[0]->texture, src_matrix); 607 } else { 608 add_vertex_data1(r, 609 pos[2], pos[3], /* mask */ 610 pos[4], pos[5], /* dst */ 611 width, height, 612 sampler_view[0]->texture, mask_matrix); 613 } 614 break; 615 case 3: 616 renderer_draw_conditional(r, 4 * 12); 617 add_vertex_data2(r, 618 pos[0], pos[1], /* src */ 619 pos[2], pos[3], /* mask */ 620 pos[4], pos[5], /* dst */ 621 width, height, 622 sampler_view[0]->texture, sampler_view[1]->texture, 623 src_matrix, mask_matrix); 624 break; 625 default: 626 break; 627 } 628} 629