vg_context.c revision 3f0a966807f03a364edea0272ddf45f08ab7ce4f
1/************************************************************************** 2 * 3 * Copyright 2009 VMware, Inc. All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sub license, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial portions 15 * of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 20 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 21 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 22 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 23 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 * 25 **************************************************************************/ 26 27#include "vg_context.h" 28 29#include "paint.h" 30#include "renderer.h" 31#include "shaders_cache.h" 32#include "shader.h" 33#include "vg_manager.h" 34#include "api.h" 35#include "mask.h" 36#include "handle.h" 37 38#include "pipe/p_context.h" 39#include "util/u_inlines.h" 40 41#include "cso_cache/cso_context.h" 42 43#include "util/u_memory.h" 44#include "util/u_blit.h" 45#include "util/u_sampler.h" 46#include "util/u_surface.h" 47#include "util/u_format.h" 48 49struct vg_context *_vg_context = 0; 50 51struct vg_context * vg_current_context(void) 52{ 53 return _vg_context; 54} 55 56/** 57 * A depth/stencil rb will be needed regardless of what the visual says. 58 */ 59static boolean 60choose_depth_stencil_format(struct vg_context *ctx) 61{ 62 struct pipe_screen *screen = ctx->pipe->screen; 63 enum pipe_format formats[] = { 64 PIPE_FORMAT_Z24_UNORM_S8_USCALED, 65 PIPE_FORMAT_S8_USCALED_Z24_UNORM, 66 PIPE_FORMAT_NONE 67 }; 68 enum pipe_format *fmt; 69 70 for (fmt = formats; *fmt != PIPE_FORMAT_NONE; fmt++) { 71 if (screen->is_format_supported(screen, *fmt, 72 PIPE_TEXTURE_2D, 0, PIPE_BIND_DEPTH_STENCIL, 0)) 73 break; 74 } 75 76 ctx->ds_format = *fmt; 77 78 return (ctx->ds_format != PIPE_FORMAT_NONE); 79} 80 81void vg_set_current_context(struct vg_context *ctx) 82{ 83 _vg_context = ctx; 84 api_make_dispatch_current((ctx) ? ctx->dispatch : NULL); 85} 86 87struct vg_context * vg_create_context(struct pipe_context *pipe, 88 const void *visual, 89 struct vg_context *share) 90{ 91 struct vg_context *ctx; 92 93 ctx = CALLOC_STRUCT(vg_context); 94 95 ctx->pipe = pipe; 96 if (!choose_depth_stencil_format(ctx)) { 97 FREE(ctx); 98 return NULL; 99 } 100 101 ctx->dispatch = api_create_dispatch(); 102 103 vg_init_state(&ctx->state.vg); 104 ctx->state.dirty = ALL_DIRTY; 105 106 ctx->cso_context = cso_create_context(pipe); 107 108 ctx->default_paint = paint_create(ctx); 109 ctx->state.vg.stroke_paint = ctx->default_paint; 110 ctx->state.vg.fill_paint = ctx->default_paint; 111 112 113 ctx->mask.sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 114 ctx->mask.sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 115 ctx->mask.sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 116 ctx->mask.sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 117 ctx->mask.sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 118 ctx->mask.sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 119 ctx->mask.sampler.normalized_coords = 0; 120 121 ctx->blend_sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 122 ctx->blend_sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 123 ctx->blend_sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 124 ctx->blend_sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 125 ctx->blend_sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 126 ctx->blend_sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 127 ctx->blend_sampler.normalized_coords = 0; 128 129 vg_set_error(ctx, VG_NO_ERROR); 130 131 ctx->owned_objects[VG_OBJECT_PAINT] = cso_hash_create(); 132 ctx->owned_objects[VG_OBJECT_IMAGE] = cso_hash_create(); 133 ctx->owned_objects[VG_OBJECT_MASK] = cso_hash_create(); 134 ctx->owned_objects[VG_OBJECT_FONT] = cso_hash_create(); 135 ctx->owned_objects[VG_OBJECT_PATH] = cso_hash_create(); 136 137 ctx->renderer = renderer_create(ctx); 138 ctx->sc = shaders_cache_create(ctx); 139 ctx->shader = shader_create(ctx); 140 141 ctx->blit = util_create_blit(ctx->pipe, ctx->cso_context); 142 143 return ctx; 144} 145 146void vg_destroy_context(struct vg_context *ctx) 147{ 148 struct pipe_resource **cbuf = &ctx->mask.cbuf; 149 150 util_destroy_blit(ctx->blit); 151 renderer_destroy(ctx->renderer); 152 shaders_cache_destroy(ctx->sc); 153 shader_destroy(ctx->shader); 154 paint_destroy(ctx->default_paint); 155 156 if (*cbuf) 157 pipe_resource_reference(cbuf, NULL); 158 159 if (ctx->mask.union_fs) 160 vg_shader_destroy(ctx, ctx->mask.union_fs); 161 if (ctx->mask.intersect_fs) 162 vg_shader_destroy(ctx, ctx->mask.intersect_fs); 163 if (ctx->mask.subtract_fs) 164 vg_shader_destroy(ctx, ctx->mask.subtract_fs); 165 if (ctx->mask.set_fs) 166 vg_shader_destroy(ctx, ctx->mask.set_fs); 167 168 cso_release_all(ctx->cso_context); 169 cso_destroy_context(ctx->cso_context); 170 171 cso_hash_delete(ctx->owned_objects[VG_OBJECT_PAINT]); 172 cso_hash_delete(ctx->owned_objects[VG_OBJECT_IMAGE]); 173 cso_hash_delete(ctx->owned_objects[VG_OBJECT_MASK]); 174 cso_hash_delete(ctx->owned_objects[VG_OBJECT_FONT]); 175 cso_hash_delete(ctx->owned_objects[VG_OBJECT_PATH]); 176 177 api_destroy_dispatch(ctx->dispatch); 178 179 FREE(ctx); 180} 181 182void vg_init_object(struct vg_object *obj, struct vg_context *ctx, enum vg_object_type type) 183{ 184 obj->type = type; 185 obj->ctx = ctx; 186 obj->handle = create_handle(obj); 187} 188 189/** free object resources, but not the object itself */ 190void vg_free_object(struct vg_object *obj) 191{ 192 obj->type = 0; 193 obj->ctx = NULL; 194 destroy_handle(obj->handle); 195} 196 197VGboolean vg_context_is_object_valid(struct vg_context *ctx, 198 enum vg_object_type type, 199 VGHandle object) 200{ 201 if (ctx) { 202 struct cso_hash *hash = ctx->owned_objects[type]; 203 if (!hash) 204 return VG_FALSE; 205 return cso_hash_contains(hash, (unsigned)(long)object); 206 } 207 return VG_FALSE; 208} 209 210void vg_context_add_object(struct vg_context *ctx, 211 enum vg_object_type type, 212 void *ptr) 213{ 214 if (ctx) { 215 struct cso_hash *hash = ctx->owned_objects[type]; 216 if (!hash) 217 return; 218 cso_hash_insert(hash, (unsigned)(long)ptr, ptr); 219 } 220} 221 222void vg_context_remove_object(struct vg_context *ctx, 223 enum vg_object_type type, 224 void *ptr) 225{ 226 if (ctx) { 227 struct cso_hash *hash = ctx->owned_objects[type]; 228 if (!hash) 229 return; 230 cso_hash_take(hash, (unsigned)(long)ptr); 231 } 232} 233 234static struct pipe_resource * 235create_texture(struct pipe_context *pipe, enum pipe_format format, 236 VGint width, VGint height) 237{ 238 struct pipe_resource templ; 239 240 memset(&templ, 0, sizeof(templ)); 241 242 if (format != PIPE_FORMAT_NONE) { 243 templ.format = format; 244 } 245 else { 246 templ.format = PIPE_FORMAT_B8G8R8A8_UNORM; 247 } 248 249 templ.target = PIPE_TEXTURE_2D; 250 templ.width0 = width; 251 templ.height0 = height; 252 templ.depth0 = 1; 253 templ.array_size = 1; 254 templ.last_level = 0; 255 256 if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)) { 257 templ.bind = PIPE_BIND_DEPTH_STENCIL; 258 } else { 259 templ.bind = (PIPE_BIND_DISPLAY_TARGET | 260 PIPE_BIND_RENDER_TARGET | 261 PIPE_BIND_SAMPLER_VIEW); 262 } 263 264 return pipe->screen->resource_create(pipe->screen, &templ); 265} 266 267static struct pipe_sampler_view * 268create_tex_and_view(struct pipe_context *pipe, enum pipe_format format, 269 VGint width, VGint height) 270{ 271 struct pipe_resource *texture; 272 struct pipe_sampler_view view_templ; 273 struct pipe_sampler_view *view; 274 275 texture = create_texture(pipe, format, width, height); 276 277 if (!texture) 278 return NULL; 279 280 u_sampler_view_default_template(&view_templ, texture, texture->format); 281 view = pipe->create_sampler_view(pipe, texture, &view_templ); 282 /* want the texture to go away if the view is freed */ 283 pipe_resource_reference(&texture, NULL); 284 285 return view; 286} 287 288static void 289vg_context_update_surface_mask_view(struct vg_context *ctx, 290 uint width, uint height) 291{ 292 struct st_framebuffer *stfb = ctx->draw_buffer; 293 struct pipe_sampler_view *old_sampler_view = stfb->surface_mask_view; 294 struct pipe_context *pipe = ctx->pipe; 295 296 if (old_sampler_view && 297 old_sampler_view->texture->width0 == width && 298 old_sampler_view->texture->height0 == height) 299 return; 300 301 /* 302 we use PIPE_FORMAT_B8G8R8A8_UNORM because we want to render to 303 this texture and use it as a sampler, so while this wastes some 304 space it makes both of those a lot simpler 305 */ 306 stfb->surface_mask_view = create_tex_and_view(pipe, 307 PIPE_FORMAT_B8G8R8A8_UNORM, width, height); 308 309 if (!stfb->surface_mask_view) { 310 if (old_sampler_view) 311 pipe_sampler_view_reference(&old_sampler_view, NULL); 312 return; 313 } 314 315 /* XXX could this call be avoided? */ 316 vg_validate_state(ctx); 317 318 /* alpha mask starts with 1.f alpha */ 319 mask_fill(0, 0, width, height, 1.f); 320 321 /* if we had an old surface copy it over */ 322 if (old_sampler_view) { 323 struct pipe_box src_box; 324 u_box_origin_2d(MIN2(old_sampler_view->texture->width0, 325 stfb->surface_mask_view->texture->width0), 326 MIN2(old_sampler_view->texture->height0, 327 stfb->surface_mask_view->texture->height0), 328 &src_box); 329 330 pipe->resource_copy_region(pipe, 331 stfb->surface_mask_view->texture, 332 0, 0, 0, 0, 333 old_sampler_view->texture, 334 0, &src_box); 335 } 336 337 /* Free the old texture 338 */ 339 if (old_sampler_view) 340 pipe_sampler_view_reference(&old_sampler_view, NULL); 341} 342 343static void 344vg_context_update_blend_texture_view(struct vg_context *ctx, 345 uint width, uint height) 346{ 347 struct pipe_context *pipe = ctx->pipe; 348 struct st_framebuffer *stfb = ctx->draw_buffer; 349 struct pipe_sampler_view *old = stfb->blend_texture_view; 350 351 if (old && 352 old->texture->width0 == width && 353 old->texture->height0 == height) 354 return; 355 356 stfb->blend_texture_view = create_tex_and_view(pipe, 357 PIPE_FORMAT_B8G8R8A8_UNORM, width, height); 358 359 pipe_sampler_view_reference(&old, NULL); 360} 361 362static boolean 363vg_context_update_depth_stencil_rb(struct vg_context * ctx, 364 uint width, uint height) 365{ 366 struct st_renderbuffer *dsrb = ctx->draw_buffer->dsrb; 367 struct pipe_context *pipe = ctx->pipe; 368 struct pipe_surface surf_tmpl; 369 370 if ((dsrb->width == width && dsrb->height == height) && dsrb->texture) 371 return FALSE; 372 373 /* unreference existing ones */ 374 pipe_surface_reference(&dsrb->surface, NULL); 375 pipe_resource_reference(&dsrb->texture, NULL); 376 dsrb->width = dsrb->height = 0; 377 378 dsrb->texture = create_texture(pipe, dsrb->format, width, height); 379 if (!dsrb->texture) 380 return TRUE; 381 382 memset(&surf_tmpl, 0, sizeof(surf_tmpl)); 383 u_surface_default_template(&surf_tmpl, dsrb->texture, 384 PIPE_BIND_DEPTH_STENCIL); 385 dsrb->surface = pipe->create_surface(pipe, 386 dsrb->texture, 387 &surf_tmpl); 388 if (!dsrb->surface) { 389 pipe_resource_reference(&dsrb->texture, NULL); 390 return TRUE; 391 } 392 393 dsrb->width = width; 394 dsrb->height = height; 395 396 assert(dsrb->surface->width == width); 397 assert(dsrb->surface->height == height); 398 399 return TRUE; 400} 401 402void vg_validate_state(struct vg_context *ctx) 403{ 404 struct st_framebuffer *stfb = ctx->draw_buffer; 405 406 vg_manager_validate_framebuffer(ctx); 407 408 if (vg_context_update_depth_stencil_rb(ctx, stfb->width, stfb->height)) 409 ctx->state.dirty |= DEPTH_STENCIL_DIRTY; 410 411 /* blend state depends on fb format and paint color */ 412 if ((ctx->state.dirty & FRAMEBUFFER_DIRTY) || 413 (ctx->state.dirty & PAINT_DIRTY)) 414 ctx->state.dirty |= BLEND_DIRTY; 415 416 renderer_validate(ctx->renderer, ctx->state.dirty, 417 ctx->draw_buffer, &ctx->state.vg); 418 419 ctx->state.dirty = 0; 420 421 shader_set_masking(ctx->shader, ctx->state.vg.masking); 422 shader_set_image_mode(ctx->shader, ctx->state.vg.image_mode); 423 shader_set_color_transform(ctx->shader, ctx->state.vg.color_transform); 424} 425 426VGboolean vg_object_is_valid(VGHandle object, enum vg_object_type type) 427{ 428 struct vg_object *obj = handle_to_object(object); 429 if (obj && is_aligned(obj) && obj->type == type) 430 return VG_TRUE; 431 else 432 return VG_FALSE; 433} 434 435void vg_set_error(struct vg_context *ctx, 436 VGErrorCode code) 437{ 438 /*vgGetError returns the oldest error code provided by 439 * an API call on the current context since the previous 440 * call to vgGetError on that context (or since the creation 441 of the context).*/ 442 if (ctx->_error == VG_NO_ERROR) 443 ctx->_error = code; 444} 445 446static void vg_prepare_blend_texture(struct vg_context *ctx, 447 struct pipe_sampler_view *src) 448{ 449 struct st_framebuffer *stfb = ctx->draw_buffer; 450 struct pipe_surface *surf; 451 struct pipe_surface surf_tmpl; 452 453 vg_context_update_blend_texture_view(ctx, stfb->width, stfb->height); 454 455 memset(&surf_tmpl, 0, sizeof(surf_tmpl)); 456 u_surface_default_template(&surf_tmpl, stfb->blend_texture_view->texture, 457 PIPE_BIND_RENDER_TARGET); 458 surf = ctx->pipe->create_surface(ctx->pipe, 459 stfb->blend_texture_view->texture, 460 &surf_tmpl); 461 if (surf) { 462 util_blit_pixels_tex(ctx->blit, 463 src, 0, 0, stfb->width, stfb->height, 464 surf, 0, 0, stfb->width, stfb->height, 465 0.0, PIPE_TEX_MIPFILTER_NEAREST); 466 467 pipe_surface_reference(&surf, NULL); 468 } 469} 470 471struct pipe_sampler_view *vg_prepare_blend_surface(struct vg_context *ctx) 472{ 473 struct pipe_context *pipe = ctx->pipe; 474 struct pipe_sampler_view *view; 475 struct pipe_sampler_view view_templ; 476 struct st_framebuffer *stfb = ctx->draw_buffer; 477 struct st_renderbuffer *strb = stfb->strb; 478 479 vg_validate_state(ctx); 480 481 u_sampler_view_default_template(&view_templ, strb->texture, strb->texture->format); 482 view = pipe->create_sampler_view(pipe, strb->texture, &view_templ); 483 484 vg_prepare_blend_texture(ctx, view); 485 486 pipe_sampler_view_reference(&view, NULL); 487 488 return stfb->blend_texture_view; 489} 490 491 492struct pipe_sampler_view *vg_prepare_blend_surface_from_mask(struct vg_context *ctx) 493{ 494 struct st_framebuffer *stfb = ctx->draw_buffer; 495 496 vg_validate_state(ctx); 497 498 vg_context_update_surface_mask_view(ctx, stfb->width, stfb->height); 499 vg_prepare_blend_texture(ctx, stfb->surface_mask_view); 500 501 return stfb->blend_texture_view; 502} 503 504struct pipe_sampler_view *vg_get_surface_mask(struct vg_context *ctx) 505{ 506 struct st_framebuffer *stfb = ctx->draw_buffer; 507 508 vg_context_update_surface_mask_view(ctx, stfb->width, stfb->height); 509 510 return stfb->surface_mask_view; 511} 512 513/** 514 * A transformation from window coordinates to paint coordinates. 515 */ 516VGboolean vg_get_paint_matrix(struct vg_context *ctx, 517 const struct matrix *paint_to_user, 518 const struct matrix *user_to_surface, 519 struct matrix *mat) 520{ 521 struct matrix tmp; 522 523 /* get user-to-paint matrix */ 524 memcpy(mat, paint_to_user, sizeof(*paint_to_user)); 525 if (!matrix_invert(mat)) 526 return VG_FALSE; 527 528 /* get surface-to-user matrix */ 529 memcpy(&tmp, user_to_surface, sizeof(*user_to_surface)); 530 if (!matrix_invert(&tmp)) 531 return VG_FALSE; 532 533 matrix_mult(mat, &tmp); 534 535 return VG_TRUE; 536} 537