st_texture.c revision 1f196b786d6bd0c6a5dbdc638574ff716cc3d4de
1/************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 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 "st_context.h" 29#include "st_format.h" 30#include "st_public.h" 31#include "st_texture.h" 32#include "st_cb_fbo.h" 33#include "st_inlines.h" 34#include "main/enums.h" 35#include "main/texfetch.h" 36#include "main/teximage.h" 37#include "main/texobj.h" 38#include "main/texstore.h" 39 40#undef Elements /* fix re-defined macro warning */ 41 42#include "pipe/p_state.h" 43#include "pipe/p_context.h" 44#include "pipe/p_defines.h" 45#include "pipe/p_inlines.h" 46#include "util/u_rect.h" 47 48 49#define DBG if(0) printf 50 51#if 0 52static GLenum 53target_to_target(GLenum target) 54{ 55 switch (target) { 56 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 57 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 58 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 59 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 60 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 61 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 62 return GL_TEXTURE_CUBE_MAP_ARB; 63 default: 64 return target; 65 } 66} 67#endif 68 69 70/** 71 * Allocate a new pipe_texture object 72 * width0, height0, depth0 are the dimensions of the level 0 image 73 * (the highest resolution). last_level indicates how many mipmap levels 74 * to allocate storage for. For non-mipmapped textures, this will be zero. 75 */ 76struct pipe_texture * 77st_texture_create(struct st_context *st, 78 enum pipe_texture_target target, 79 enum pipe_format format, 80 GLuint last_level, 81 GLuint width0, 82 GLuint height0, 83 GLuint depth0, 84 GLuint usage ) 85{ 86 struct pipe_texture pt, *newtex; 87 struct pipe_screen *screen = st->pipe->screen; 88 89 assert(target <= PIPE_TEXTURE_CUBE); 90 91 DBG("%s target %s format %s last_level %d\n", __FUNCTION__, 92 _mesa_lookup_enum_by_nr(target), 93 _mesa_lookup_enum_by_nr(format), last_level); 94 95 assert(format); 96 assert(screen->is_format_supported(screen, format, target, 97 PIPE_TEXTURE_USAGE_SAMPLER, 0)); 98 99 memset(&pt, 0, sizeof(pt)); 100 pt.target = target; 101 pt.format = format; 102 pt.last_level = last_level; 103 pt.width[0] = width0; 104 pt.height[0] = height0; 105 pt.depth[0] = depth0; 106 pf_get_block(format, &pt.block); 107 pt.tex_usage = usage; 108 109 newtex = screen->texture_create(screen, &pt); 110 111 assert(!newtex || pipe_is_referenced(&newtex->reference)); 112 113 return newtex; 114} 115 116 117/** 118 * Check if a texture image can be pulled into a unified mipmap texture. 119 */ 120GLboolean 121st_texture_match_image(const struct pipe_texture *pt, 122 const struct gl_texture_image *image, 123 GLuint face, GLuint level) 124{ 125 /* Images with borders are never pulled into mipmap textures. 126 */ 127 if (image->Border) 128 return GL_FALSE; 129 130 /* Check if this image's format matches the established texture's format. 131 */ 132 if (st_mesa_format_to_pipe_format(image->TexFormat) != pt->format) 133 return GL_FALSE; 134 135 /* Test if this image's size matches what's expected in the 136 * established texture. 137 */ 138 if (image->Width != pt->width[level] || 139 image->Height != pt->height[level] || 140 image->Depth != pt->depth[level]) 141 return GL_FALSE; 142 143 return GL_TRUE; 144} 145 146 147#if 000 148/* Although we use the image_offset[] array to store relative offsets 149 * to cube faces, Mesa doesn't know anything about this and expects 150 * each cube face to be treated as a separate image. 151 * 152 * These functions present that view to mesa: 153 */ 154const GLuint * 155st_texture_depth_offsets(struct pipe_texture *pt, GLuint level) 156{ 157 static const GLuint zero = 0; 158 159 if (pt->target != PIPE_TEXTURE_3D || pt->level[level].nr_images == 1) 160 return &zero; 161 else 162 return pt->level[level].image_offset; 163} 164 165 166/** 167 * Return the offset to the given mipmap texture image within the 168 * texture memory buffer, in bytes. 169 */ 170GLuint 171st_texture_image_offset(const struct pipe_texture * pt, 172 GLuint face, GLuint level) 173{ 174 if (pt->target == PIPE_TEXTURE_CUBE) 175 return (pt->level[level].level_offset + 176 pt->level[level].image_offset[face] * pt->cpp); 177 else 178 return pt->level[level].level_offset; 179} 180#endif 181 182 183/** 184 * Map a teximage in a mipmap texture. 185 * \param row_stride returns row stride in bytes 186 * \param image_stride returns image stride in bytes (for 3D textures). 187 * \return address of mapping 188 */ 189GLubyte * 190st_texture_image_map(struct st_context *st, struct st_texture_image *stImage, 191 GLuint zoffset, enum pipe_transfer_usage usage, 192 GLuint x, GLuint y, GLuint w, GLuint h) 193{ 194 struct pipe_context *pipe = st->pipe; 195 struct pipe_screen *screen = pipe->screen; 196 struct pipe_texture *pt = stImage->pt; 197 198 DBG("%s \n", __FUNCTION__); 199 200 stImage->transfer = st_no_flush_get_tex_transfer(st, pt, stImage->face, 201 stImage->level, zoffset, 202 usage, x, y, w, h); 203 204 if (stImage->transfer) 205 return screen->transfer_map(screen, stImage->transfer); 206 else 207 return NULL; 208} 209 210 211void 212st_texture_image_unmap(struct st_context *st, 213 struct st_texture_image *stImage) 214{ 215 struct pipe_screen *screen = st->pipe->screen; 216 217 DBG("%s\n", __FUNCTION__); 218 219 screen->transfer_unmap(screen, stImage->transfer); 220 221 screen->tex_transfer_destroy(stImage->transfer); 222} 223 224 225 226/** 227 * Upload data to a rectangular sub-region. Lots of choices how to do this: 228 * 229 * - memcpy by span to current destination 230 * - upload data as new buffer and blit 231 * 232 * Currently always memcpy. 233 */ 234static void 235st_surface_data(struct pipe_context *pipe, 236 struct pipe_transfer *dst, 237 unsigned dstx, unsigned dsty, 238 const void *src, unsigned src_stride, 239 unsigned srcx, unsigned srcy, unsigned width, unsigned height) 240{ 241 struct pipe_screen *screen = pipe->screen; 242 void *map = screen->transfer_map(screen, dst); 243 244 util_copy_rect(map, 245 &dst->block, 246 dst->stride, 247 dstx, dsty, 248 width, height, 249 src, src_stride, 250 srcx, srcy); 251 252 screen->transfer_unmap(screen, dst); 253} 254 255 256/* Upload data for a particular image. 257 */ 258void 259st_texture_image_data(struct st_context *st, 260 struct pipe_texture *dst, 261 GLuint face, 262 GLuint level, 263 void *src, 264 GLuint src_row_stride, GLuint src_image_stride) 265{ 266 struct pipe_context *pipe = st->pipe; 267 struct pipe_screen *screen = pipe->screen; 268 GLuint depth = dst->depth[level]; 269 GLuint i; 270 const GLubyte *srcUB = src; 271 struct pipe_transfer *dst_transfer; 272 273 DBG("%s\n", __FUNCTION__); 274 275 for (i = 0; i < depth; i++) { 276 dst_transfer = st_no_flush_get_tex_transfer(st, dst, face, level, i, 277 PIPE_TRANSFER_WRITE, 0, 0, 278 dst->width[level], 279 dst->height[level]); 280 281 st_surface_data(pipe, dst_transfer, 282 0, 0, /* dstx, dsty */ 283 srcUB, 284 src_row_stride, 285 0, 0, /* source x, y */ 286 dst->width[level], dst->height[level]); /* width, height */ 287 288 screen->tex_transfer_destroy(dst_transfer); 289 290 srcUB += src_image_stride; 291 } 292} 293 294 295/* Copy mipmap image between textures 296 */ 297void 298st_texture_image_copy(struct pipe_context *pipe, 299 struct pipe_texture *dst, GLuint dstLevel, 300 struct pipe_texture *src, 301 GLuint face) 302{ 303 struct pipe_screen *screen = pipe->screen; 304 GLuint width = dst->width[dstLevel]; 305 GLuint height = dst->height[dstLevel]; 306 GLuint depth = dst->depth[dstLevel]; 307 struct pipe_surface *src_surface; 308 struct pipe_surface *dst_surface; 309 GLuint i; 310 311 for (i = 0; i < depth; i++) { 312 GLuint srcLevel; 313 314 /* find src texture level of needed size */ 315 for (srcLevel = 0; srcLevel <= src->last_level; srcLevel++) { 316 if (src->width[srcLevel] == width && 317 src->height[srcLevel] == height) { 318 break; 319 } 320 } 321 assert(src->width[srcLevel] == width); 322 assert(src->height[srcLevel] == height); 323 324#if 0 325 { 326 src_surface = screen->get_tex_surface(screen, src, face, srcLevel, i, 327 PIPE_BUFFER_USAGE_CPU_READ); 328 ubyte *map = screen->surface_map(screen, src_surface, PIPE_BUFFER_USAGE_CPU_READ); 329 map += src_surface->width * src_surface->height * 4 / 2; 330 printf("%s center pixel: %d %d %d %d (pt %p[%d] -> %p[%d])\n", 331 __FUNCTION__, 332 map[0], map[1], map[2], map[3], 333 src, srcLevel, dst, dstLevel); 334 335 screen->surface_unmap(screen, src_surface); 336 pipe_surface_reference(&src_surface, NULL); 337 } 338#endif 339 340 dst_surface = screen->get_tex_surface(screen, dst, face, dstLevel, i, 341 PIPE_BUFFER_USAGE_GPU_WRITE); 342 343 src_surface = screen->get_tex_surface(screen, src, face, srcLevel, i, 344 PIPE_BUFFER_USAGE_GPU_READ); 345 346 if (pipe->surface_copy) { 347 pipe->surface_copy(pipe, 348 dst_surface, 349 0, 0, /* destX, Y */ 350 src_surface, 351 0, 0, /* srcX, Y */ 352 width, height); 353 } else { 354 util_surface_copy(pipe, FALSE, 355 dst_surface, 356 0, 0, /* destX, Y */ 357 src_surface, 358 0, 0, /* srcX, Y */ 359 width, height); 360 } 361 362 pipe_surface_reference(&src_surface, NULL); 363 pipe_surface_reference(&dst_surface, NULL); 364 } 365} 366 367 368/** 369 * Bind a pipe surface to a texture object. After the call, 370 * the texture object is marked dirty and will be (re-)validated. 371 * 372 * If this is the first surface bound, the texture object is said to 373 * switch from normal to surface based. It will be cleared first in 374 * this case. 375 * 376 * \param ps pipe surface to be unbound 377 * \param target texture target 378 * \param level image level 379 * \param format internal format of the texture 380 */ 381int 382st_bind_texture_surface(struct pipe_surface *ps, int target, int level, 383 enum pipe_format format) 384{ 385 GET_CURRENT_CONTEXT(ctx); 386 const GLuint unit = ctx->Texture.CurrentUnit; 387 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; 388 struct gl_texture_object *texObj; 389 struct gl_texture_image *texImage; 390 struct st_texture_object *stObj; 391 struct st_texture_image *stImage; 392 GLenum internalFormat; 393 394 switch (target) { 395 case ST_TEXTURE_2D: 396 target = GL_TEXTURE_2D; 397 break; 398 case ST_TEXTURE_RECT: 399 target = GL_TEXTURE_RECTANGLE_ARB; 400 break; 401 default: 402 return 0; 403 } 404 405 /* map pipe format to base format for now */ 406 if (pf_get_component_bits(format, PIPE_FORMAT_COMP_A) > 0) 407 internalFormat = GL_RGBA; 408 else 409 internalFormat = GL_RGB; 410 411 texObj = _mesa_select_tex_object(ctx, texUnit, target); 412 _mesa_lock_texture(ctx, texObj); 413 414 stObj = st_texture_object(texObj); 415 /* switch to surface based */ 416 if (!stObj->surface_based) { 417 _mesa_clear_texture_object(ctx, texObj); 418 stObj->surface_based = GL_TRUE; 419 } 420 421 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 422 stImage = st_texture_image(texImage); 423 424 _mesa_init_teximage_fields(ctx, target, texImage, 425 ps->width, ps->height, 1, 0, internalFormat); 426 texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, 427 GL_RGBA, GL_UNSIGNED_BYTE); 428 _mesa_set_fetch_functions(texImage, 2); 429 pipe_texture_reference(&stImage->pt, ps->texture); 430 431 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 432 _mesa_unlock_texture(ctx, texObj); 433 434 return 1; 435} 436 437 438/** 439 * Unbind a pipe surface from a texture object. After the call, 440 * the texture object is marked dirty and will be (re-)validated. 441 * 442 * \param ps pipe surface to be unbound 443 * \param target texture target 444 * \param level image level 445 */ 446int 447st_unbind_texture_surface(struct pipe_surface *ps, int target, int level) 448{ 449 GET_CURRENT_CONTEXT(ctx); 450 const GLuint unit = ctx->Texture.CurrentUnit; 451 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; 452 struct gl_texture_object *texObj; 453 struct gl_texture_image *texImage; 454 struct st_texture_object *stObj; 455 struct st_texture_image *stImage; 456 457 switch (target) { 458 case ST_TEXTURE_2D: 459 target = GL_TEXTURE_2D; 460 break; 461 case ST_TEXTURE_RECT: 462 target = GL_TEXTURE_RECTANGLE_ARB; 463 break; 464 default: 465 return 0; 466 } 467 468 texObj = _mesa_select_tex_object(ctx, texUnit, target); 469 470 _mesa_lock_texture(ctx, texObj); 471 472 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 473 stObj = st_texture_object(texObj); 474 stImage = st_texture_image(texImage); 475 476 /* Make sure the pipe surface is still bound. The texture object is still 477 * considered surface based even if this is the last bound surface. */ 478 if (stImage->pt == ps->texture) { 479 pipe_texture_reference(&stImage->pt, NULL); 480 _mesa_clear_texture_image(ctx, texImage); 481 482 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 483 } 484 485 _mesa_unlock_texture(ctx, texObj); 486 487 return 1; 488} 489 490 491/** Redirect rendering into stfb's surface to a texture image */ 492int 493st_bind_teximage(struct st_framebuffer *stfb, uint surfIndex, 494 int target, int format, int level) 495{ 496 GET_CURRENT_CONTEXT(ctx); 497 struct st_context *st = ctx->st; 498 struct pipe_context *pipe = st->pipe; 499 struct pipe_screen *screen = pipe->screen; 500 const GLuint unit = ctx->Texture.CurrentUnit; 501 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; 502 struct gl_texture_object *texObj; 503 struct gl_texture_image *texImage; 504 struct st_texture_image *stImage; 505 struct st_renderbuffer *strb; 506 GLint face = 0, slice = 0; 507 508 assert(surfIndex <= ST_SURFACE_DEPTH); 509 510 strb = st_renderbuffer(stfb->Base.Attachment[surfIndex].Renderbuffer); 511 512 if (strb->texture_save || strb->surface_save) { 513 /* Error! */ 514 return 0; 515 } 516 517 if (target == ST_TEXTURE_2D) { 518 texObj = texUnit->CurrentTex[TEXTURE_2D_INDEX]; 519 texImage = _mesa_get_tex_image(ctx, texObj, GL_TEXTURE_2D, level); 520 stImage = st_texture_image(texImage); 521 } 522 else { 523 /* unsupported target */ 524 return 0; 525 } 526 527 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 528 529 /* save the renderbuffer's surface/texture info */ 530 pipe_texture_reference(&strb->texture_save, strb->texture); 531 pipe_surface_reference(&strb->surface_save, strb->surface); 532 533 /* plug in new surface/texture info */ 534 pipe_texture_reference(&strb->texture, stImage->pt); 535 strb->surface = screen->get_tex_surface(screen, strb->texture, 536 face, level, slice, 537 (PIPE_BUFFER_USAGE_GPU_READ | 538 PIPE_BUFFER_USAGE_GPU_WRITE)); 539 540 st->dirty.st |= ST_NEW_FRAMEBUFFER; 541 542 return 1; 543} 544 545 546/** Undo surface-to-texture binding */ 547int 548st_release_teximage(struct st_framebuffer *stfb, uint surfIndex, 549 int target, int format, int level) 550{ 551 GET_CURRENT_CONTEXT(ctx); 552 struct st_context *st = ctx->st; 553 struct st_renderbuffer *strb; 554 555 assert(surfIndex <= ST_SURFACE_DEPTH); 556 557 strb = st_renderbuffer(stfb->Base.Attachment[surfIndex].Renderbuffer); 558 559 if (!strb->texture_save || !strb->surface_save) { 560 /* Error! */ 561 return 0; 562 } 563 564 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 565 566 /* free tex surface, restore original */ 567 pipe_surface_reference(&strb->surface, strb->surface_save); 568 pipe_texture_reference(&strb->texture, strb->texture_save); 569 570 pipe_surface_reference(&strb->surface_save, NULL); 571 pipe_texture_reference(&strb->texture_save, NULL); 572 573 st->dirty.st |= ST_NEW_FRAMEBUFFER; 574 575 return 1; 576} 577 578void 579st_teximage_flush_before_map(struct st_context *st, 580 struct pipe_texture *pt, 581 unsigned int face, 582 unsigned int level, 583 enum pipe_transfer_usage usage) 584{ 585 struct pipe_context *pipe = st->pipe; 586 unsigned referenced = 587 pipe->is_texture_referenced(pipe, pt, face, level); 588 589 if (referenced && ((referenced & PIPE_REFERENCED_FOR_WRITE) || 590 (usage & PIPE_TRANSFER_WRITE))) 591 st_flush(st, PIPE_FLUSH_RENDER_CACHE, NULL); 592} 593