xa_composite.c revision 4d04367eca66a85e26f7c0f5d6392823d13880f6
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 * Thomas Hellstrom <thellstrom-at-vmware-dot-com> 28 */ 29 30#include "xa_composite.h" 31#include "xa_context.h" 32#include "xa_priv.h" 33#include "cso_cache/cso_context.h" 34#include "util/u_sampler.h" 35#include "util/u_inlines.h" 36 37 38/*XXX also in Xrender.h but the including it here breaks compilition */ 39#define XFixedToDouble(f) (((double) (f)) / 65536.) 40 41struct xa_composite_blend { 42 enum xa_composite_op op : 8; 43 44 unsigned alpha_dst : 4; 45 unsigned alpha_src : 4; 46 47 unsigned rgb_src : 8; /**< PIPE_BLENDFACTOR_x */ 48 unsigned rgb_dst : 8; /**< PIPE_BLENDFACTOR_x */ 49}; 50 51#define XA_BLEND_OP_OVER 3 52static const struct xa_composite_blend xa_blends[] = { 53 { xa_op_clear, 54 0, 0, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_ZERO}, 55 { xa_op_src, 56 0, 0, PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_ZERO}, 57 { xa_op_dst, 58 0, 0, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_ONE}, 59 { xa_op_over, 60 0, 1, PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_INV_SRC_ALPHA}, 61 { xa_op_over_reverse, 62 1, 0, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_ONE}, 63 { xa_op_in, 64 1, 0, PIPE_BLENDFACTOR_DST_ALPHA, PIPE_BLENDFACTOR_ZERO}, 65 { xa_op_in_reverse, 66 0, 1, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_SRC_ALPHA}, 67 { xa_op_out, 68 1, 0, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_ZERO}, 69 { xa_op_out_reverse, 70 0, 1, PIPE_BLENDFACTOR_ZERO, PIPE_BLENDFACTOR_INV_SRC_ALPHA}, 71 { xa_op_atop, 72 1, 1, PIPE_BLENDFACTOR_DST_ALPHA, PIPE_BLENDFACTOR_INV_SRC_ALPHA}, 73 { xa_op_atop_reverse, 74 1, 1, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_SRC_ALPHA}, 75 { xa_op_xor, 76 1, 1, PIPE_BLENDFACTOR_INV_DST_ALPHA, PIPE_BLENDFACTOR_INV_SRC_ALPHA}, 77 { xa_op_add, 78 0, 0, PIPE_BLENDFACTOR_ONE, PIPE_BLENDFACTOR_ONE}, 79}; 80 81 82/* 83 * The alpha value stored in a luminance texture is read by the 84 * hardware as color. 85 */ 86static unsigned 87xa_convert_blend_for_luminance(unsigned factor) 88{ 89 switch(factor) { 90 case PIPE_BLENDFACTOR_DST_ALPHA: 91 return PIPE_BLENDFACTOR_DST_COLOR; 92 case PIPE_BLENDFACTOR_INV_DST_ALPHA: 93 return PIPE_BLENDFACTOR_INV_DST_COLOR; 94 default: 95 break; 96 } 97 return factor; 98} 99 100 101static boolean 102blend_for_op(struct xa_composite_blend *blend, 103 enum xa_composite_op op, 104 struct xa_picture *src_pic, 105 struct xa_picture *mask_pic, 106 struct xa_picture *dst_pic) 107{ 108 const int num_blends = 109 sizeof(xa_blends)/sizeof(struct xa_composite_blend); 110 int i; 111 boolean supported = FALSE; 112 113 /* 114 * Temporarily disable component alpha since it appears buggy. 115 */ 116 if (src_pic->component_alpha || 117 (mask_pic && mask_pic->component_alpha)) 118 return FALSE; 119 120 /* 121 * our default in case something goes wrong 122 */ 123 *blend = xa_blends[XA_BLEND_OP_OVER]; 124 125 for (i = 0; i < num_blends; ++i) { 126 if (xa_blends[i].op == op) { 127 *blend = xa_blends[i]; 128 supported = TRUE; 129 } 130 } 131 132 if (!dst_pic->srf) 133 return supported; 134 135 if (dst_pic->srf->tex->format == PIPE_FORMAT_L8_UNORM) { 136 blend->rgb_src = xa_convert_blend_for_luminance(blend->rgb_src); 137 blend->rgb_dst = xa_convert_blend_for_luminance(blend->rgb_dst); 138 } 139 140 /* 141 * If there's no dst alpha channel, adjust the blend op so that we'll treat 142 * it as always 1. 143 */ 144 145 if (xa_format_a(dst_pic->pict_format) == 0 && blend->alpha_dst) { 146 if (blend->rgb_src == PIPE_BLENDFACTOR_DST_ALPHA) 147 blend->rgb_src = PIPE_BLENDFACTOR_ONE; 148 else if (blend->rgb_src == PIPE_BLENDFACTOR_INV_DST_ALPHA) 149 blend->rgb_src = PIPE_BLENDFACTOR_ZERO; 150 } 151 152 /* 153 * If the source alpha is being used, then we should only be in a case where 154 * the source blend factor is 0, and the source blend value is the mask 155 * channels multiplied by the source picture's alpha. 156 */ 157 if (mask_pic && mask_pic->component_alpha && 158 xa_format_rgb(mask_pic->pict_format) && 159 blend->alpha_src) { 160 if (blend->rgb_dst == PIPE_BLENDFACTOR_SRC_ALPHA) { 161 blend->rgb_dst = PIPE_BLENDFACTOR_SRC_COLOR; 162 } else if (blend->rgb_dst == PIPE_BLENDFACTOR_INV_SRC_ALPHA) { 163 blend->rgb_dst = PIPE_BLENDFACTOR_INV_SRC_COLOR; 164 } 165 } 166 167 return supported; 168} 169 170 171static INLINE int 172xa_repeat_to_gallium(int mode) 173{ 174 switch(mode) { 175 case xa_wrap_clamp_to_border: 176 return PIPE_TEX_WRAP_CLAMP_TO_BORDER; 177 case xa_wrap_repeat: 178 return PIPE_TEX_WRAP_REPEAT; 179 case xa_wrap_mirror_repeat: 180 return PIPE_TEX_WRAP_MIRROR_REPEAT; 181 case xa_wrap_clamp_to_edge: 182 return PIPE_TEX_WRAP_CLAMP_TO_EDGE; 183 default: 184 break; 185 } 186 return PIPE_TEX_WRAP_REPEAT; 187} 188 189static INLINE boolean 190xa_filter_to_gallium(int xrender_filter, int *out_filter) 191{ 192 193 switch (xrender_filter) { 194 case xa_filter_nearest: 195 *out_filter = PIPE_TEX_FILTER_NEAREST; 196 break; 197 case xa_filter_linear: 198 *out_filter = PIPE_TEX_FILTER_LINEAR; 199 break; 200 default: 201 *out_filter = PIPE_TEX_FILTER_NEAREST; 202 return FALSE; 203 } 204 return TRUE; 205} 206 207static int 208xa_is_filter_accelerated(struct xa_picture *pic) 209{ 210 int filter; 211 if (pic && !xa_filter_to_gallium(pic->filter, &filter)) 212 return 0; 213 return 1; 214} 215 216XA_EXPORT int 217xa_composite_check_accelerated(const struct xa_composite *comp) 218{ 219 struct xa_composite_blend blend; 220 struct xa_picture *src_pic = comp->src; 221 222 if (!xa_is_filter_accelerated(src_pic) || 223 !xa_is_filter_accelerated(comp->mask)) { 224 return -XA_ERR_INVAL; 225 } 226 227 228 if (src_pic->src_pict) { 229 if (src_pic->src_pict->type != xa_src_pict_solid_fill) 230 return -XA_ERR_INVAL; 231 } 232 233 if (blend_for_op(&blend, comp->op, comp->src, comp->mask, comp->dst)) { 234 struct xa_picture *mask = comp->mask; 235 if (mask && mask->component_alpha && 236 xa_format_rgb(mask->pict_format)) { 237 if (blend.alpha_src && blend.rgb_src != PIPE_BLENDFACTOR_ZERO) { 238 return -XA_ERR_INVAL; 239 } 240 } 241 242 return XA_ERR_NONE; 243 } 244 return -XA_ERR_INVAL; 245} 246 247static int 248bind_composite_blend_state(struct xa_context *ctx, 249 const struct xa_composite *comp) 250{ 251 struct xa_composite_blend blend_opt; 252 struct pipe_blend_state blend; 253 254 if (!blend_for_op(&blend_opt, comp->op, comp->src, comp->mask, comp->dst)) 255 return -XA_ERR_INVAL; 256 257 memset(&blend, 0, sizeof(struct pipe_blend_state)); 258 blend.rt[0].blend_enable = 1; 259 blend.rt[0].colormask = PIPE_MASK_RGBA; 260 261 blend.rt[0].rgb_src_factor = blend_opt.rgb_src; 262 blend.rt[0].alpha_src_factor = blend_opt.rgb_src; 263 blend.rt[0].rgb_dst_factor = blend_opt.rgb_dst; 264 blend.rt[0].alpha_dst_factor = blend_opt.rgb_dst; 265 266 cso_set_blend(ctx->cso, &blend); 267 return XA_ERR_NONE; 268} 269 270static unsigned int 271picture_format_fixups(struct xa_picture *src_pic, 272 int mask) 273{ 274 boolean set_alpha = FALSE; 275 boolean swizzle = FALSE; 276 unsigned ret = 0; 277 struct xa_surface *src = src_pic->srf; 278 enum xa_formats src_hw_format, src_pic_format; 279 enum xa_surface_type src_hw_type, src_pic_type; 280 281 if (!src) 282 return 0; 283 284 src_hw_format = xa_surface_format(src); 285 src_pic_format = src_pic->pict_format; 286 287 set_alpha = (xa_format_type_is_color(src_pic_format) && 288 xa_format_a(src_pic_format) == 0); 289 290 if (set_alpha) 291 ret |= mask ? FS_MASK_SET_ALPHA : FS_SRC_SET_ALPHA; 292 293 if (src_hw_format == src_pic_format) { 294 if (src->tex->format == PIPE_FORMAT_L8_UNORM) 295 return ((mask) ? FS_MASK_LUMINANCE : FS_SRC_LUMINANCE); 296 297 return ret; 298 } 299 300 src_hw_type = xa_format_type(src_hw_format); 301 src_pic_type = xa_format_type(src_pic_format); 302 303 swizzle = ((src_hw_type == xa_type_argb && 304 src_pic_type == xa_type_abgr) || 305 ((src_hw_type == xa_type_abgr && 306 src_pic_type == xa_type_argb))); 307 308 if (!swizzle && (src_hw_type != src_pic_type)) 309 return ret; 310 311 if (swizzle) 312 ret |= mask ? FS_MASK_SWIZZLE_RGB : FS_SRC_SWIZZLE_RGB; 313 314 return ret; 315} 316 317static int 318bind_shaders(struct xa_context *ctx, const struct xa_composite *comp) 319{ 320 unsigned vs_traits = 0, fs_traits = 0; 321 struct xa_shader shader; 322 struct xa_picture *src_pic = comp->src; 323 struct xa_picture *mask_pic = comp->mask; 324 325 ctx->has_solid_color = FALSE; 326 327 if (src_pic) { 328 if (src_pic->wrap == xa_wrap_clamp_to_border && src_pic->has_transform) 329 fs_traits |= FS_SRC_REPEAT_NONE; 330 331 if (src_pic->src_pict) { 332 if (src_pic->src_pict->type == xa_src_pict_solid_fill) { 333 fs_traits |= FS_SOLID_FILL; 334 vs_traits |= VS_SOLID_FILL; 335 xa_pixel_to_float4(src_pic->src_pict->solid_fill.color, 336 ctx->solid_color); 337 ctx->has_solid_color = TRUE; 338 } 339 } else { 340 fs_traits |= FS_COMPOSITE; 341 vs_traits |= VS_COMPOSITE; 342 } 343 344 fs_traits |= picture_format_fixups(src_pic, 0); 345 } 346 347 if (mask_pic) { 348 vs_traits |= VS_MASK; 349 fs_traits |= FS_MASK; 350 if (mask_pic->wrap == xa_wrap_clamp_to_border && 351 mask_pic->has_transform) 352 fs_traits |= FS_MASK_REPEAT_NONE; 353 354 if (mask_pic->component_alpha) { 355 struct xa_composite_blend blend; 356 if (!blend_for_op(&blend, comp->op, src_pic, mask_pic, NULL)) 357 return -XA_ERR_INVAL; 358 359 if (blend.alpha_src) { 360 fs_traits |= FS_CA_SRCALPHA; 361 } else 362 fs_traits |= FS_CA_FULL; 363 } 364 365 fs_traits |= picture_format_fixups(mask_pic, 1); 366 } 367 368 if (ctx->srf->format == PIPE_FORMAT_L8_UNORM) 369 fs_traits |= FS_DST_LUMINANCE; 370 371 shader = xa_shaders_get(ctx->shaders, vs_traits, fs_traits); 372 cso_set_vertex_shader_handle(ctx->cso, shader.vs); 373 cso_set_fragment_shader_handle(ctx->cso, shader.fs); 374 return XA_ERR_NONE; 375} 376 377static void 378bind_samplers(struct xa_context *ctx, 379 const struct xa_composite *comp) 380{ 381 struct pipe_sampler_state *samplers[PIPE_MAX_SAMPLERS]; 382 struct pipe_sampler_state src_sampler, mask_sampler; 383 struct pipe_sampler_view view_templ; 384 struct pipe_sampler_view *src_view; 385 struct pipe_context *pipe = ctx->pipe; 386 struct xa_picture *src_pic = comp->src; 387 struct xa_picture *mask_pic = comp->mask; 388 389 ctx->num_bound_samplers = 0; 390 391 memset(&src_sampler, 0, sizeof(struct pipe_sampler_state)); 392 memset(&mask_sampler, 0, sizeof(struct pipe_sampler_state)); 393 394 if (src_pic) { 395 if (ctx->has_solid_color) { 396 samplers[0] = NULL; 397 pipe_sampler_view_reference(&ctx->bound_sampler_views[0], NULL); 398 } else { 399 unsigned src_wrap = xa_repeat_to_gallium(src_pic->wrap); 400 int filter; 401 402 (void) xa_filter_to_gallium(src_pic->filter, &filter); 403 404 src_sampler.wrap_s = src_wrap; 405 src_sampler.wrap_t = src_wrap; 406 src_sampler.min_img_filter = filter; 407 src_sampler.mag_img_filter = filter; 408 src_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST; 409 src_sampler.normalized_coords = 1; 410 samplers[0] = &src_sampler; 411 ctx->num_bound_samplers = 1; 412 u_sampler_view_default_template(&view_templ, 413 src_pic->srf->tex, 414 src_pic->srf->tex->format); 415 src_view = pipe->create_sampler_view(pipe, src_pic->srf->tex, 416 &view_templ); 417 pipe_sampler_view_reference(&ctx->bound_sampler_views[0], NULL); 418 ctx->bound_sampler_views[0] = src_view; 419 } 420 } 421 422 if (mask_pic) { 423 unsigned mask_wrap = xa_repeat_to_gallium(mask_pic->wrap); 424 int filter; 425 426 (void) xa_filter_to_gallium(mask_pic->filter, &filter); 427 428 mask_sampler.wrap_s = mask_wrap; 429 mask_sampler.wrap_t = mask_wrap; 430 mask_sampler.min_img_filter = filter; 431 mask_sampler.mag_img_filter = filter; 432 src_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST; 433 mask_sampler.normalized_coords = 1; 434 samplers[1] = &mask_sampler; 435 ctx->num_bound_samplers = 2; 436 u_sampler_view_default_template(&view_templ, 437 mask_pic->srf->tex, 438 mask_pic->srf->tex->format); 439 src_view = pipe->create_sampler_view(pipe, mask_pic->srf->tex, 440 &view_templ); 441 pipe_sampler_view_reference(&ctx->bound_sampler_views[1], NULL); 442 ctx->bound_sampler_views[1] = src_view; 443 } 444 445 cso_set_samplers(ctx->cso, ctx->num_bound_samplers, 446 (const struct pipe_sampler_state **)samplers); 447 cso_set_fragment_sampler_views(ctx->cso, ctx->num_bound_samplers, 448 ctx->bound_sampler_views); 449} 450 451XA_EXPORT int 452xa_composite_prepare(struct xa_context *ctx, 453 const struct xa_composite *comp) 454{ 455 struct xa_surface *dst_srf = comp->dst->srf; 456 int ret; 457 458 ret = xa_ctx_srf_create(ctx, dst_srf); 459 if (ret != XA_ERR_NONE) 460 return ret; 461 462 ctx->dst = dst_srf; 463 renderer_bind_destination(ctx, ctx->srf, ctx->srf->width, 464 ctx->srf->height); 465 466 ret = bind_composite_blend_state(ctx, comp); 467 if (ret != XA_ERR_NONE) 468 return ret; 469 ret = bind_shaders(ctx, comp); 470 if (ret != XA_ERR_NONE) 471 return ret; 472 bind_samplers(ctx, comp); 473 474 if (ctx->num_bound_samplers == 0 ) { /* solid fill */ 475 renderer_begin_solid(ctx); 476 } else { 477 renderer_begin_textures(ctx); 478 ctx->comp = comp; 479 } 480 481 xa_ctx_srf_destroy(ctx); 482 return XA_ERR_NONE; 483} 484 485XA_EXPORT void 486xa_composite_rect(struct xa_context *ctx, 487 int srcX, int srcY, int maskX, int maskY, 488 int dstX, int dstY, int width, int height) 489{ 490 if (ctx->num_bound_samplers == 0 ) { /* solid fill */ 491 renderer_solid(ctx, dstX, dstY, dstX + width, dstY + height, 492 ctx->solid_color); 493 } else { 494 const struct xa_composite *comp = ctx->comp; 495 int pos[6] = {srcX, srcY, maskX, maskY, dstX, dstY}; 496 const float *src_matrix = NULL; 497 const float *mask_matrix = NULL; 498 499 if (comp->src->has_transform) 500 src_matrix = comp->src->transform; 501 if (comp->mask && comp->mask->has_transform) 502 mask_matrix = comp->mask->transform; 503 504 renderer_texture(ctx, pos, width, height, 505 src_matrix, mask_matrix); 506 } 507} 508 509XA_EXPORT void 510xa_composite_done(struct xa_context *ctx) 511{ 512 renderer_draw_flush(ctx); 513 ctx->pipe->flush(ctx->pipe, &ctx->last_fence); 514 515 ctx->comp = NULL; 516 ctx->has_solid_color = FALSE; 517 xa_ctx_sampler_views_destroy(ctx); 518} 519 520static const struct xa_composite_allocation a = { 521 .xa_composite_size = sizeof(struct xa_composite), 522 .xa_picture_size = sizeof(struct xa_picture), 523 .xa_source_pict_size = sizeof(union xa_source_pict), 524}; 525 526XA_EXPORT const struct xa_composite_allocation * 527xa_composite_allocation(void) 528{ 529 return &a; 530} 531