vg_context.c revision d41e694cf78ada8c9258f96995115c9da8437894
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} 187 188VGboolean vg_context_is_object_valid(struct vg_context *ctx, 189 enum vg_object_type type, 190 VGHandle object) 191{ 192 if (ctx) { 193 struct cso_hash *hash = ctx->owned_objects[type]; 194 if (!hash) 195 return VG_FALSE; 196 return cso_hash_contains(hash, (unsigned)(long)object); 197 } 198 return VG_FALSE; 199} 200 201void vg_context_add_object(struct vg_context *ctx, 202 enum vg_object_type type, 203 void *ptr) 204{ 205 if (ctx) { 206 struct cso_hash *hash = ctx->owned_objects[type]; 207 if (!hash) 208 return; 209 cso_hash_insert(hash, (unsigned)(long)ptr, ptr); 210 } 211} 212 213void vg_context_remove_object(struct vg_context *ctx, 214 enum vg_object_type type, 215 void *ptr) 216{ 217 if (ctx) { 218 struct cso_hash *hash = ctx->owned_objects[type]; 219 if (!hash) 220 return; 221 cso_hash_take(hash, (unsigned)(long)ptr); 222 } 223} 224 225static struct pipe_resource * 226create_texture(struct pipe_context *pipe, enum pipe_format format, 227 VGint width, VGint height) 228{ 229 struct pipe_resource templ; 230 231 memset(&templ, 0, sizeof(templ)); 232 233 if (format != PIPE_FORMAT_NONE) { 234 templ.format = format; 235 } 236 else { 237 templ.format = PIPE_FORMAT_B8G8R8A8_UNORM; 238 } 239 240 templ.target = PIPE_TEXTURE_2D; 241 templ.width0 = width; 242 templ.height0 = height; 243 templ.depth0 = 1; 244 templ.array_size = 1; 245 templ.last_level = 0; 246 247 if (util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1)) { 248 templ.bind = PIPE_BIND_DEPTH_STENCIL; 249 } else { 250 templ.bind = (PIPE_BIND_DISPLAY_TARGET | 251 PIPE_BIND_RENDER_TARGET | 252 PIPE_BIND_SAMPLER_VIEW); 253 } 254 255 return pipe->screen->resource_create(pipe->screen, &templ); 256} 257 258static struct pipe_sampler_view * 259create_tex_and_view(struct pipe_context *pipe, enum pipe_format format, 260 VGint width, VGint height) 261{ 262 struct pipe_resource *texture; 263 struct pipe_sampler_view view_templ; 264 struct pipe_sampler_view *view; 265 266 texture = create_texture(pipe, format, width, height); 267 268 if (!texture) 269 return NULL; 270 271 u_sampler_view_default_template(&view_templ, texture, texture->format); 272 view = pipe->create_sampler_view(pipe, texture, &view_templ); 273 /* want the texture to go away if the view is freed */ 274 pipe_resource_reference(&texture, NULL); 275 276 return view; 277} 278 279static void 280vg_context_update_surface_mask_view(struct vg_context *ctx, 281 uint width, uint height) 282{ 283 struct st_framebuffer *stfb = ctx->draw_buffer; 284 struct pipe_sampler_view *old_sampler_view = stfb->surface_mask_view; 285 struct pipe_context *pipe = ctx->pipe; 286 287 if (old_sampler_view && 288 old_sampler_view->texture->width0 == width && 289 old_sampler_view->texture->height0 == height) 290 return; 291 292 /* 293 we use PIPE_FORMAT_B8G8R8A8_UNORM because we want to render to 294 this texture and use it as a sampler, so while this wastes some 295 space it makes both of those a lot simpler 296 */ 297 stfb->surface_mask_view = create_tex_and_view(pipe, 298 PIPE_FORMAT_B8G8R8A8_UNORM, width, height); 299 300 if (!stfb->surface_mask_view) { 301 if (old_sampler_view) 302 pipe_sampler_view_reference(&old_sampler_view, NULL); 303 return; 304 } 305 306 /* XXX could this call be avoided? */ 307 vg_validate_state(ctx); 308 309 /* alpha mask starts with 1.f alpha */ 310 mask_fill(0, 0, width, height, 1.f); 311 312 /* if we had an old surface copy it over */ 313 if (old_sampler_view) { 314 struct pipe_box src_box; 315 u_box_origin_2d(MIN2(old_sampler_view->texture->width0, 316 stfb->surface_mask_view->texture->width0), 317 MIN2(old_sampler_view->texture->height0, 318 stfb->surface_mask_view->texture->height0), 319 &src_box); 320 321 pipe->resource_copy_region(pipe, 322 stfb->surface_mask_view->texture, 323 0, 0, 0, 0, 324 old_sampler_view->texture, 325 0, &src_box); 326 } 327 328 /* Free the old texture 329 */ 330 if (old_sampler_view) 331 pipe_sampler_view_reference(&old_sampler_view, NULL); 332} 333 334static void 335vg_context_update_blend_texture_view(struct vg_context *ctx, 336 uint width, uint height) 337{ 338 struct pipe_context *pipe = ctx->pipe; 339 struct st_framebuffer *stfb = ctx->draw_buffer; 340 struct pipe_sampler_view *old = stfb->blend_texture_view; 341 342 if (old && 343 old->texture->width0 == width && 344 old->texture->height0 == height) 345 return; 346 347 stfb->blend_texture_view = create_tex_and_view(pipe, 348 PIPE_FORMAT_B8G8R8A8_UNORM, width, height); 349 350 pipe_sampler_view_reference(&old, NULL); 351} 352 353static boolean 354vg_context_update_depth_stencil_rb(struct vg_context * ctx, 355 uint width, uint height) 356{ 357 struct st_renderbuffer *dsrb = ctx->draw_buffer->dsrb; 358 struct pipe_context *pipe = ctx->pipe; 359 struct pipe_surface surf_tmpl; 360 361 if ((dsrb->width == width && dsrb->height == height) && dsrb->texture) 362 return FALSE; 363 364 /* unreference existing ones */ 365 pipe_surface_reference(&dsrb->surface, NULL); 366 pipe_resource_reference(&dsrb->texture, NULL); 367 dsrb->width = dsrb->height = 0; 368 369 dsrb->texture = create_texture(pipe, dsrb->format, width, height); 370 if (!dsrb->texture) 371 return TRUE; 372 373 memset(&surf_tmpl, 0, sizeof(surf_tmpl)); 374 u_surface_default_template(&surf_tmpl, dsrb->texture, 375 PIPE_BIND_DEPTH_STENCIL); 376 dsrb->surface = pipe->create_surface(pipe, 377 dsrb->texture, 378 &surf_tmpl); 379 if (!dsrb->surface) { 380 pipe_resource_reference(&dsrb->texture, NULL); 381 return TRUE; 382 } 383 384 dsrb->width = width; 385 dsrb->height = height; 386 387 assert(dsrb->surface->width == width); 388 assert(dsrb->surface->height == height); 389 390 return TRUE; 391} 392 393void vg_validate_state(struct vg_context *ctx) 394{ 395 struct st_framebuffer *stfb = ctx->draw_buffer; 396 397 vg_manager_validate_framebuffer(ctx); 398 399 if (vg_context_update_depth_stencil_rb(ctx, stfb->width, stfb->height)) 400 ctx->state.dirty |= DEPTH_STENCIL_DIRTY; 401 402 /* blend state depends on fb format */ 403 if (ctx->state.dirty & FRAMEBUFFER_DIRTY) 404 ctx->state.dirty |= BLEND_DIRTY; 405 406 renderer_validate(ctx->renderer, ctx->state.dirty, 407 ctx->draw_buffer, &ctx->state.vg); 408 409 ctx->state.dirty = 0; 410 411 shader_set_masking(ctx->shader, ctx->state.vg.masking); 412 shader_set_image_mode(ctx->shader, ctx->state.vg.image_mode); 413 shader_set_color_transform(ctx->shader, ctx->state.vg.color_transform); 414} 415 416VGboolean vg_object_is_valid(VGHandle object, enum vg_object_type type) 417{ 418 struct vg_object *obj = handle_to_object(object); 419 if (object && is_aligned(obj) && obj->type == type) 420 return VG_TRUE; 421 else 422 return VG_FALSE; 423} 424 425void vg_set_error(struct vg_context *ctx, 426 VGErrorCode code) 427{ 428 /*vgGetError returns the oldest error code provided by 429 * an API call on the current context since the previous 430 * call to vgGetError on that context (or since the creation 431 of the context).*/ 432 if (ctx->_error == VG_NO_ERROR) 433 ctx->_error = code; 434} 435 436static void vg_prepare_blend_texture(struct vg_context *ctx, 437 struct pipe_sampler_view *src) 438{ 439 struct st_framebuffer *stfb = ctx->draw_buffer; 440 struct pipe_surface *surf; 441 struct pipe_surface surf_tmpl; 442 443 vg_context_update_blend_texture_view(ctx, stfb->width, stfb->height); 444 445 memset(&surf_tmpl, 0, sizeof(surf_tmpl)); 446 u_surface_default_template(&surf_tmpl, stfb->blend_texture_view->texture, 447 PIPE_BIND_RENDER_TARGET); 448 surf = ctx->pipe->create_surface(ctx->pipe, 449 stfb->blend_texture_view->texture, 450 &surf_tmpl); 451 if (surf) { 452 util_blit_pixels_tex(ctx->blit, 453 src, 0, 0, stfb->width, stfb->height, 454 surf, 0, 0, stfb->width, stfb->height, 455 0.0, PIPE_TEX_MIPFILTER_NEAREST); 456 457 pipe_surface_reference(&surf, NULL); 458 } 459} 460 461struct pipe_sampler_view *vg_prepare_blend_surface(struct vg_context *ctx) 462{ 463 struct pipe_context *pipe = ctx->pipe; 464 struct pipe_sampler_view *view; 465 struct pipe_sampler_view view_templ; 466 struct st_framebuffer *stfb = ctx->draw_buffer; 467 struct st_renderbuffer *strb = stfb->strb; 468 469 vg_validate_state(ctx); 470 471 u_sampler_view_default_template(&view_templ, strb->texture, strb->texture->format); 472 view = pipe->create_sampler_view(pipe, strb->texture, &view_templ); 473 474 vg_prepare_blend_texture(ctx, view); 475 476 pipe_sampler_view_reference(&view, NULL); 477 478 return stfb->blend_texture_view; 479} 480 481 482struct pipe_sampler_view *vg_prepare_blend_surface_from_mask(struct vg_context *ctx) 483{ 484 struct st_framebuffer *stfb = ctx->draw_buffer; 485 486 vg_validate_state(ctx); 487 488 vg_context_update_surface_mask_view(ctx, stfb->width, stfb->height); 489 vg_prepare_blend_texture(ctx, stfb->surface_mask_view); 490 491 return stfb->blend_texture_view; 492} 493 494struct pipe_sampler_view *vg_get_surface_mask(struct vg_context *ctx) 495{ 496 struct st_framebuffer *stfb = ctx->draw_buffer; 497 498 vg_context_update_surface_mask_view(ctx, stfb->width, stfb->height); 499 500 return stfb->surface_mask_view; 501} 502 503/** 504 * A transformation from window coordinates to paint coordinates. 505 */ 506VGboolean vg_get_paint_matrix(struct vg_context *ctx, 507 const struct matrix *paint_to_user, 508 const struct matrix *user_to_surface, 509 struct matrix *mat) 510{ 511 struct matrix tmp; 512 513 /* get user-to-paint matrix */ 514 memcpy(mat, paint_to_user, sizeof(*paint_to_user)); 515 if (!matrix_invert(mat)) 516 return VG_FALSE; 517 518 /* get surface-to-user matrix */ 519 memcpy(&tmp, user_to_surface, sizeof(*user_to_surface)); 520 if (!matrix_invert(&tmp)) 521 return VG_FALSE; 522 523 matrix_mult(mat, &tmp); 524 525 return VG_TRUE; 526} 527