st_cb_texture.c revision 2914f2b7fd9bd1082f8cce724d234208b900c3d4
147d431f63a66505a645f282416659a9758a91f1cBrett Chabot/************************************************************************** 247d431f63a66505a645f282416659a9758a91f1cBrett Chabot * 347d431f63a66505a645f282416659a9758a91f1cBrett Chabot * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 447d431f63a66505a645f282416659a9758a91f1cBrett Chabot * All Rights Reserved. 547d431f63a66505a645f282416659a9758a91f1cBrett Chabot * 647d431f63a66505a645f282416659a9758a91f1cBrett Chabot * Permission is hereby granted, free of charge, to any person obtaining a 747d431f63a66505a645f282416659a9758a91f1cBrett Chabot * copy of this software and associated documentation files (the 847d431f63a66505a645f282416659a9758a91f1cBrett Chabot * "Software"), to deal in the Software without restriction, including 947d431f63a66505a645f282416659a9758a91f1cBrett Chabot * without limitation the rights to use, copy, modify, merge, publish, 1047d431f63a66505a645f282416659a9758a91f1cBrett Chabot * distribute, sub license, and/or sell copies of the Software, and to 1147d431f63a66505a645f282416659a9758a91f1cBrett Chabot * permit persons to whom the Software is furnished to do so, subject to 1247d431f63a66505a645f282416659a9758a91f1cBrett Chabot * the following conditions: 1347d431f63a66505a645f282416659a9758a91f1cBrett Chabot * 1447d431f63a66505a645f282416659a9758a91f1cBrett Chabot * The above copyright notice and this permission notice (including the 1547d431f63a66505a645f282416659a9758a91f1cBrett Chabot * next paragraph) shall be included in all copies or substantial portions 1647d431f63a66505a645f282416659a9758a91f1cBrett Chabot * of the Software. 1747d431f63a66505a645f282416659a9758a91f1cBrett Chabot * 1847d431f63a66505a645f282416659a9758a91f1cBrett Chabot * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 1947d431f63a66505a645f282416659a9758a91f1cBrett Chabot * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 2047d431f63a66505a645f282416659a9758a91f1cBrett Chabot * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 2147d431f63a66505a645f282416659a9758a91f1cBrett Chabot * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 2247d431f63a66505a645f282416659a9758a91f1cBrett Chabot * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 2347d431f63a66505a645f282416659a9758a91f1cBrett Chabot * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 2447d431f63a66505a645f282416659a9758a91f1cBrett Chabot * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 2547d431f63a66505a645f282416659a9758a91f1cBrett Chabot * 2647d431f63a66505a645f282416659a9758a91f1cBrett Chabot **************************************************************************/ 2747d431f63a66505a645f282416659a9758a91f1cBrett Chabot 2847d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/mfeatures.h" 2947d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/bufferobj.h" 3047d431f63a66505a645f282416659a9758a91f1cBrett Chabot#if FEATURE_convolve 3147d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/convolve.h" 3247d431f63a66505a645f282416659a9758a91f1cBrett Chabot#endif 3347d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/enums.h" 3447d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/image.h" 3547d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/imports.h" 3647d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/macros.h" 3747d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/mipmap.h" 3847d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/pixel.h" 3947d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/texcompress.h" 4047d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/texformat.h" 4147d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/texgetimage.h" 4247d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/teximage.h" 4347d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/texobj.h" 4447d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "main/texstore.h" 4547d431f63a66505a645f282416659a9758a91f1cBrett Chabot 4647d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "state_tracker/st_context.h" 4747d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "state_tracker/st_cb_fbo.h" 4847d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "state_tracker/st_cb_texture.h" 4947d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "state_tracker/st_format.h" 5047d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "state_tracker/st_public.h" 5147d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "state_tracker/st_texture.h" 5247d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "state_tracker/st_gen_mipmap.h" 5347d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "state_tracker/st_inlines.h" 5447d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "state_tracker/st_atom.h" 5547d431f63a66505a645f282416659a9758a91f1cBrett Chabot 5647d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "pipe/p_context.h" 5747d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "pipe/p_defines.h" 5847d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "pipe/p_inlines.h" 5947d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "pipe/p_shader_tokens.h" 6047d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "util/u_tile.h" 6147d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "util/u_blit.h" 6247d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "util/u_surface.h" 6347d431f63a66505a645f282416659a9758a91f1cBrett Chabot#include "util/u_math.h" 6447d431f63a66505a645f282416659a9758a91f1cBrett Chabot 6547d431f63a66505a645f282416659a9758a91f1cBrett Chabot 6647d431f63a66505a645f282416659a9758a91f1cBrett Chabot#define DBG if (0) printf 6747d431f63a66505a645f282416659a9758a91f1cBrett Chabot 6847d431f63a66505a645f282416659a9758a91f1cBrett Chabot 6947d431f63a66505a645f282416659a9758a91f1cBrett Chabotstatic enum pipe_texture_target 7047d431f63a66505a645f282416659a9758a91f1cBrett Chabotgl_target_to_pipe(GLenum target) 7147d431f63a66505a645f282416659a9758a91f1cBrett Chabot{ 7247d431f63a66505a645f282416659a9758a91f1cBrett Chabot switch (target) { 7347d431f63a66505a645f282416659a9758a91f1cBrett Chabot case GL_TEXTURE_1D: 7447d431f63a66505a645f282416659a9758a91f1cBrett Chabot return PIPE_TEXTURE_1D; 7547d431f63a66505a645f282416659a9758a91f1cBrett Chabot 7647d431f63a66505a645f282416659a9758a91f1cBrett Chabot case GL_TEXTURE_2D: 7747d431f63a66505a645f282416659a9758a91f1cBrett Chabot case GL_TEXTURE_RECTANGLE_NV: 7847d431f63a66505a645f282416659a9758a91f1cBrett Chabot return PIPE_TEXTURE_2D; 7947d431f63a66505a645f282416659a9758a91f1cBrett Chabot 8047d431f63a66505a645f282416659a9758a91f1cBrett Chabot case GL_TEXTURE_3D: 8147d431f63a66505a645f282416659a9758a91f1cBrett Chabot return PIPE_TEXTURE_3D; 8247d431f63a66505a645f282416659a9758a91f1cBrett Chabot 8347d431f63a66505a645f282416659a9758a91f1cBrett Chabot case GL_TEXTURE_CUBE_MAP_ARB: 8447d431f63a66505a645f282416659a9758a91f1cBrett Chabot return PIPE_TEXTURE_CUBE; 8547d431f63a66505a645f282416659a9758a91f1cBrett Chabot 8647d431f63a66505a645f282416659a9758a91f1cBrett Chabot default: 8747d431f63a66505a645f282416659a9758a91f1cBrett Chabot assert(0); 8847d431f63a66505a645f282416659a9758a91f1cBrett Chabot return 0; 8947d431f63a66505a645f282416659a9758a91f1cBrett Chabot } 9047d431f63a66505a645f282416659a9758a91f1cBrett Chabot} 9147d431f63a66505a645f282416659a9758a91f1cBrett Chabot 9247d431f63a66505a645f282416659a9758a91f1cBrett Chabot 9347d431f63a66505a645f282416659a9758a91f1cBrett Chabot/** 9447d431f63a66505a645f282416659a9758a91f1cBrett Chabot * Return nominal bytes per texel for a compressed format, 0 for non-compressed 9547d431f63a66505a645f282416659a9758a91f1cBrett Chabot * format. 9647d431f63a66505a645f282416659a9758a91f1cBrett Chabot */ 9747d431f63a66505a645f282416659a9758a91f1cBrett Chabotstatic GLuint 9847d431f63a66505a645f282416659a9758a91f1cBrett Chabotcompressed_num_bytes(GLuint mesaFormat) 9947d431f63a66505a645f282416659a9758a91f1cBrett Chabot{ 10047d431f63a66505a645f282416659a9758a91f1cBrett Chabot switch(mesaFormat) { 10147d431f63a66505a645f282416659a9758a91f1cBrett Chabot#if FEATURE_texture_fxt1 10247d431f63a66505a645f282416659a9758a91f1cBrett Chabot case MESA_FORMAT_RGB_FXT1: 103 case MESA_FORMAT_RGBA_FXT1: 104#endif 105#if FEATURE_texture_s3tc 106 case MESA_FORMAT_RGB_DXT1: 107 case MESA_FORMAT_RGBA_DXT1: 108 return 2; 109 case MESA_FORMAT_RGBA_DXT3: 110 case MESA_FORMAT_RGBA_DXT5: 111 return 4; 112#endif 113 default: 114 return 0; 115 } 116} 117 118 119static GLboolean 120is_compressed_mesa_format(const struct gl_texture_format *format) 121{ 122 switch (format->MesaFormat) { 123 case MESA_FORMAT_RGB_DXT1: 124 case MESA_FORMAT_RGBA_DXT1: 125 case MESA_FORMAT_RGBA_DXT3: 126 case MESA_FORMAT_RGBA_DXT5: 127 case MESA_FORMAT_SRGB_DXT1: 128 case MESA_FORMAT_SRGBA_DXT1: 129 case MESA_FORMAT_SRGBA_DXT3: 130 case MESA_FORMAT_SRGBA_DXT5: 131 return GL_TRUE; 132 default: 133 return GL_FALSE; 134 } 135} 136 137 138/** called via ctx->Driver.NewTextureImage() */ 139static struct gl_texture_image * 140st_NewTextureImage(GLcontext * ctx) 141{ 142 DBG("%s\n", __FUNCTION__); 143 (void) ctx; 144 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image); 145} 146 147 148/** called via ctx->Driver.NewTextureObject() */ 149static struct gl_texture_object * 150st_NewTextureObject(GLcontext * ctx, GLuint name, GLenum target) 151{ 152 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object); 153 154 DBG("%s\n", __FUNCTION__); 155 _mesa_initialize_texture_object(&obj->base, name, target); 156 157 return &obj->base; 158} 159 160/** called via ctx->Driver.DeleteTextureImage() */ 161static void 162st_DeleteTextureObject(GLcontext *ctx, 163 struct gl_texture_object *texObj) 164{ 165 struct st_texture_object *stObj = st_texture_object(texObj); 166 if (stObj->pt) 167 pipe_texture_reference(&stObj->pt, NULL); 168 169 _mesa_delete_texture_object(ctx, texObj); 170} 171 172 173/** called via ctx->Driver.FreeTexImageData() */ 174static void 175st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage) 176{ 177 struct st_texture_image *stImage = st_texture_image(texImage); 178 179 DBG("%s\n", __FUNCTION__); 180 181 if (stImage->pt) { 182 pipe_texture_reference(&stImage->pt, NULL); 183 } 184 185 if (texImage->Data) { 186 _mesa_align_free(texImage->Data); 187 texImage->Data = NULL; 188 } 189} 190 191 192/** 193 * From linux kernel i386 header files, copes with odd sizes better 194 * than COPY_DWORDS would: 195 * XXX Put this in src/mesa/main/imports.h ??? 196 */ 197#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86) 198static INLINE void * 199__memcpy(void *to, const void *from, size_t n) 200{ 201 int d0, d1, d2; 202 __asm__ __volatile__("rep ; movsl\n\t" 203 "testb $2,%b4\n\t" 204 "je 1f\n\t" 205 "movsw\n" 206 "1:\ttestb $1,%b4\n\t" 207 "je 2f\n\t" 208 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2) 209 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from) 210 :"memory"); 211 return (to); 212} 213#else 214#define __memcpy(a,b,c) memcpy(a,b,c) 215#endif 216 217 218/** 219 * The system memcpy (at least on ubuntu 5.10) has problems copying 220 * to agp (writecombined) memory from a source which isn't 64-byte 221 * aligned - there is a 4x performance falloff. 222 * 223 * The x86 __memcpy is immune to this but is slightly slower 224 * (10%-ish) than the system memcpy. 225 * 226 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but 227 * isn't much faster than x86_memcpy for agp copies. 228 * 229 * TODO: switch dynamically. 230 */ 231static void * 232do_memcpy(void *dest, const void *src, size_t n) 233{ 234 if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) { 235 return __memcpy(dest, src, n); 236 } 237 else 238 return memcpy(dest, src, n); 239} 240 241 242/** 243 * Return default texture usage bitmask for the given texture format. 244 */ 245static GLuint 246default_usage(enum pipe_format fmt) 247{ 248 GLuint usage = PIPE_TEXTURE_USAGE_SAMPLER; 249 if (pf_is_depth_stencil(fmt)) 250 usage |= PIPE_TEXTURE_USAGE_DEPTH_STENCIL; 251 else 252 usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET; 253 return usage; 254} 255 256 257/** 258 * Allocate a pipe_texture object for the given st_texture_object using 259 * the given st_texture_image to guess the mipmap size/levels. 260 * 261 * [comments...] 262 * Otherwise, store it in memory if (Border != 0) or (any dimension == 263 * 1). 264 * 265 * Otherwise, if max_level >= level >= min_level, create texture with 266 * space for images from min_level down to max_level. 267 * 268 * Otherwise, create texture with space for images from (level 0)..(1x1). 269 * Consider pruning this texture at a validation if the saving is worth it. 270 */ 271static void 272guess_and_alloc_texture(struct st_context *st, 273 struct st_texture_object *stObj, 274 const struct st_texture_image *stImage) 275{ 276 GLuint firstLevel; 277 GLuint lastLevel; 278 GLuint width = stImage->base.Width2; /* size w/out border */ 279 GLuint height = stImage->base.Height2; 280 GLuint depth = stImage->base.Depth2; 281 GLuint i, usage; 282 enum pipe_format fmt; 283 284 DBG("%s\n", __FUNCTION__); 285 286 assert(!stObj->pt); 287 288 if (stObj->pt && 289 (GLint) stImage->level > stObj->base.BaseLevel && 290 (stImage->base.Width == 1 || 291 (stObj->base.Target != GL_TEXTURE_1D && 292 stImage->base.Height == 1) || 293 (stObj->base.Target == GL_TEXTURE_3D && 294 stImage->base.Depth == 1))) 295 return; 296 297 /* If this image disrespects BaseLevel, allocate from level zero. 298 * Usually BaseLevel == 0, so it's unlikely to happen. 299 */ 300 if ((GLint) stImage->level < stObj->base.BaseLevel) 301 firstLevel = 0; 302 else 303 firstLevel = stObj->base.BaseLevel; 304 305 306 /* Figure out image dimensions at start level. 307 */ 308 for (i = stImage->level; i > firstLevel; i--) { 309 if (width != 1) 310 width <<= 1; 311 if (height != 1) 312 height <<= 1; 313 if (depth != 1) 314 depth <<= 1; 315 } 316 317 if (width == 0 || height == 0 || depth == 0) { 318 /* no texture needed */ 319 return; 320 } 321 322 /* Guess a reasonable value for lastLevel. This is probably going 323 * to be wrong fairly often and might mean that we have to look at 324 * resizable buffers, or require that buffers implement lazy 325 * pagetable arrangements. 326 */ 327 if ((stObj->base.MinFilter == GL_NEAREST || 328 stObj->base.MinFilter == GL_LINEAR || 329 stImage->base._BaseFormat == GL_DEPTH_COMPONENT || 330 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) && 331 stImage->level == firstLevel) { 332 lastLevel = firstLevel; 333 } 334 else { 335 GLuint l2width = util_logbase2(width); 336 GLuint l2height = util_logbase2(height); 337 GLuint l2depth = util_logbase2(depth); 338 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth); 339 } 340 341 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat->MesaFormat); 342 343 usage = default_usage(fmt); 344 345 stObj->pt = st_texture_create(st, 346 gl_target_to_pipe(stObj->base.Target), 347 fmt, 348 lastLevel, 349 width, 350 height, 351 depth, 352 usage); 353 354 DBG("%s - success\n", __FUNCTION__); 355} 356 357 358/** 359 * Adjust pixel unpack params and image dimensions to strip off the 360 * texture border. 361 * Gallium doesn't support texture borders. They've seldem been used 362 * and seldom been implemented correctly anyway. 363 * \param unpackNew returns the new pixel unpack parameters 364 */ 365static void 366strip_texture_border(GLint border, 367 GLint *width, GLint *height, GLint *depth, 368 const struct gl_pixelstore_attrib *unpack, 369 struct gl_pixelstore_attrib *unpackNew) 370{ 371 assert(border > 0); /* sanity check */ 372 373 *unpackNew = *unpack; 374 375 if (unpackNew->RowLength == 0) 376 unpackNew->RowLength = *width; 377 378 if (depth && unpackNew->ImageHeight == 0) 379 unpackNew->ImageHeight = *height; 380 381 unpackNew->SkipPixels += border; 382 if (height) 383 unpackNew->SkipRows += border; 384 if (depth) 385 unpackNew->SkipImages += border; 386 387 assert(*width >= 3); 388 *width = *width - 2 * border; 389 if (height && *height >= 3) 390 *height = *height - 2 * border; 391 if (depth && *depth >= 3) 392 *depth = *depth - 2 * border; 393} 394 395 396/** 397 * Try to do texture compression via rendering. If the Gallium driver 398 * can render into a compressed surface this will allow us to do texture 399 * compression. 400 * \return GL_TRUE for success, GL_FALSE for failure 401 */ 402static GLboolean 403compress_with_blit(GLcontext * ctx, 404 GLenum target, GLint level, 405 GLint xoffset, GLint yoffset, GLint zoffset, 406 GLint width, GLint height, GLint depth, 407 GLenum format, GLenum type, const void *pixels, 408 const struct gl_pixelstore_attrib *unpack, 409 struct gl_texture_image *texImage) 410{ 411 const GLuint dstImageOffsets[1] = {0}; 412 struct st_texture_image *stImage = st_texture_image(texImage); 413 struct pipe_screen *screen = ctx->st->pipe->screen; 414 const struct gl_texture_format *mesa_format; 415 struct pipe_texture templ; 416 struct pipe_texture *src_tex; 417 struct pipe_surface *dst_surface; 418 struct pipe_transfer *tex_xfer; 419 void *map; 420 421 422 if (!stImage->pt) { 423 /* XXX: Can this happen? Should we assert? */ 424 return GL_FALSE; 425 } 426 427 /* get destination surface (in the compressed texture) */ 428 dst_surface = screen->get_tex_surface(screen, stImage->pt, 429 stImage->face, stImage->level, 0, 430 PIPE_BUFFER_USAGE_GPU_WRITE); 431 if (!dst_surface) { 432 /* can't render into this format (or other problem) */ 433 return GL_FALSE; 434 } 435 436 /* Choose format for the temporary RGBA texture image. 437 */ 438 mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type); 439 assert(mesa_format); 440 if (!mesa_format) 441 return GL_FALSE; 442 443 /* Create the temporary source texture 444 */ 445 memset(&templ, 0, sizeof(templ)); 446 templ.target = PIPE_TEXTURE_2D; 447 templ.format = st_mesa_format_to_pipe_format(mesa_format->MesaFormat); 448 pf_get_block(templ.format, &templ.block); 449 templ.width[0] = width; 450 templ.height[0] = height; 451 templ.depth[0] = 1; 452 templ.last_level = 0; 453 templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER; 454 src_tex = screen->texture_create(screen, &templ); 455 456 if (!src_tex) 457 return GL_FALSE; 458 459 /* Put user's tex data into the temporary texture 460 */ 461 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), src_tex, 462 0, 0, 0, /* face, level are zero */ 463 PIPE_TRANSFER_WRITE, 464 0, 0, width, height); /* x, y, w, h */ 465 map = screen->transfer_map(screen, tex_xfer); 466 467 mesa_format->StoreImage(ctx, 2, GL_RGBA, mesa_format, 468 map, /* dest ptr */ 469 0, 0, 0, /* dest x/y/z offset */ 470 tex_xfer->stride, /* dest row stride (bytes) */ 471 dstImageOffsets, /* image offsets (for 3D only) */ 472 width, height, 1, /* size */ 473 format, type, /* source format/type */ 474 pixels, /* source data */ 475 unpack); /* source data packing */ 476 477 screen->transfer_unmap(screen, tex_xfer); 478 screen->tex_transfer_destroy(tex_xfer); 479 480 /* copy / compress image */ 481 util_blit_pixels_tex(ctx->st->blit, 482 src_tex, /* pipe_texture (src) */ 483 0, 0, /* src x0, y0 */ 484 width, height, /* src x1, y1 */ 485 dst_surface, /* pipe_surface (dst) */ 486 xoffset, yoffset, /* dst x0, y0 */ 487 xoffset + width, /* dst x1 */ 488 yoffset + height, /* dst y1 */ 489 0.0, /* z */ 490 PIPE_TEX_MIPFILTER_NEAREST); 491 492 pipe_surface_reference(&dst_surface, NULL); 493 pipe_texture_reference(&src_tex, NULL); 494 495 return GL_TRUE; 496} 497 498 499/** 500 * Do glTexImage1/2/3D(). 501 */ 502static void 503st_TexImage(GLcontext * ctx, 504 GLint dims, 505 GLenum target, GLint level, 506 GLint internalFormat, 507 GLint width, GLint height, GLint depth, 508 GLint border, 509 GLenum format, GLenum type, const void *pixels, 510 const struct gl_pixelstore_attrib *unpack, 511 struct gl_texture_object *texObj, 512 struct gl_texture_image *texImage, 513 GLsizei imageSize, GLboolean compressed_src) 514{ 515 struct pipe_screen *screen = ctx->st->pipe->screen; 516 struct st_texture_object *stObj = st_texture_object(texObj); 517 struct st_texture_image *stImage = st_texture_image(texImage); 518 GLint postConvWidth, postConvHeight; 519 GLint texelBytes, sizeInBytes; 520 GLuint dstRowStride = 0; 521 struct gl_pixelstore_attrib unpackNB; 522 enum pipe_transfer_usage transfer_usage = 0; 523 524 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__, 525 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border); 526 527 /* switch to "normal" */ 528 if (stObj->surface_based) { 529 _mesa_clear_texture_object(ctx, texObj); 530 stObj->surface_based = GL_FALSE; 531 } 532 533 /* gallium does not support texture borders, strip it off */ 534 if (border) { 535 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB); 536 unpack = &unpackNB; 537 texImage->Width = width; 538 texImage->Height = height; 539 texImage->Depth = depth; 540 texImage->Border = 0; 541 border = 0; 542 } 543 544 postConvWidth = width; 545 postConvHeight = height; 546 547 stImage->face = _mesa_tex_target_to_face(target); 548 stImage->level = level; 549 550#if FEATURE_convolve 551 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) { 552 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth, 553 &postConvHeight); 554 } 555#endif 556 557 /* choose the texture format */ 558 texImage->TexFormat = st_ChooseTextureFormat(ctx, internalFormat, 559 format, type); 560 561 _mesa_set_fetch_functions(texImage, dims); 562 563 if (texImage->TexFormat->TexelBytes == 0) { 564 /* must be a compressed format */ 565 texelBytes = 0; 566 texImage->IsCompressed = GL_TRUE; 567 texImage->CompressedSize = 568 ctx->Driver.CompressedTextureSize(ctx, texImage->Width, 569 texImage->Height, texImage->Depth, 570 texImage->TexFormat->MesaFormat); 571 } 572 else { 573 texelBytes = texImage->TexFormat->TexelBytes; 574 575 /* Minimum pitch of 32 bytes */ 576 if (postConvWidth * texelBytes < 32) { 577 postConvWidth = 32 / texelBytes; 578 texImage->RowStride = postConvWidth; 579 } 580 581 /* we'll set RowStride elsewhere when the texture is a "mapped" state */ 582 /*assert(texImage->RowStride == postConvWidth);*/ 583 } 584 585 /* Release the reference to a potentially orphaned buffer. 586 * Release any old malloced memory. 587 */ 588 if (stImage->pt) { 589 pipe_texture_reference(&stImage->pt, NULL); 590 assert(!texImage->Data); 591 } 592 else if (texImage->Data) { 593 _mesa_align_free(texImage->Data); 594 } 595 596 if (width == 0 || height == 0 || depth == 0) { 597 /* stop after freeing old image */ 598 return; 599 } 600 601 /* If this is the only mipmap level in the texture, could call 602 * bmBufferData with NULL data to free the old block and avoid 603 * waiting on any outstanding fences. 604 */ 605 if (stObj->pt) { 606 if (stObj->teximage_realloc || 607 level > (GLint) stObj->pt->last_level || 608 (stObj->pt->last_level == level && 609 stObj->pt->target != PIPE_TEXTURE_CUBE && 610 !st_texture_match_image(stObj->pt, &stImage->base, 611 stImage->face, stImage->level))) { 612 DBG("release it\n"); 613 pipe_texture_reference(&stObj->pt, NULL); 614 assert(!stObj->pt); 615 stObj->teximage_realloc = FALSE; 616 } 617 } 618 619 if (!stObj->pt) { 620 guess_and_alloc_texture(ctx->st, stObj, stImage); 621 if (!stObj->pt) { 622 /* Probably out of memory. 623 * Try flushing any pending rendering, then retry. 624 */ 625 st_finish(ctx->st); 626 guess_and_alloc_texture(ctx->st, stObj, stImage); 627 if (!stObj->pt) { 628 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 629 return; 630 } 631 } 632 } 633 634 assert(!stImage->pt); 635 636 if (stObj->pt && 637 st_texture_match_image(stObj->pt, &stImage->base, 638 stImage->face, stImage->level)) { 639 640 pipe_texture_reference(&stImage->pt, stObj->pt); 641 assert(stImage->pt); 642 } 643 644 if (!stImage->pt) 645 DBG("XXX: Image did not fit into texture - storing in local memory!\n"); 646 647 /* st_CopyTexImage calls this function with pixels == NULL, with 648 * the expectation that the texture will be set up but nothing 649 * more will be done. This is where those calls return: 650 */ 651 if (compressed_src) { 652 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels, 653 unpack, 654 "glCompressedTexImage"); 655 } 656 else { 657 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1, 658 format, type, 659 pixels, unpack, "glTexImage"); 660 } 661 if (!pixels) 662 return; 663 664 /* See if we can do texture compression with a blit/render. 665 */ 666 if (!compressed_src && 667 !ctx->Mesa_DXTn && 668 is_compressed_mesa_format(texImage->TexFormat) && 669 screen->is_format_supported(screen, 670 stImage->pt->format, 671 stImage->pt->target, 672 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 673 if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth, 674 format, type, pixels, unpack, texImage)) { 675 goto done; 676 } 677 } 678 679 if (stImage->pt) { 680 if (format == GL_DEPTH_COMPONENT && 681 pf_is_depth_and_stencil(stImage->pt->format)) 682 transfer_usage = PIPE_TRANSFER_READ_WRITE; 683 else 684 transfer_usage = PIPE_TRANSFER_WRITE; 685 686 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 687 transfer_usage, 0, 0, 688 stImage->base.Width, 689 stImage->base.Height); 690 if(stImage->transfer) 691 dstRowStride = stImage->transfer->stride; 692 } 693 else { 694 /* Allocate regular memory and store the image there temporarily. */ 695 if (texImage->IsCompressed) { 696 sizeInBytes = texImage->CompressedSize; 697 dstRowStride = 698 _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width); 699 assert(dims != 3); 700 } 701 else { 702 dstRowStride = postConvWidth * texelBytes; 703 sizeInBytes = depth * dstRowStride * postConvHeight; 704 } 705 706 texImage->Data = _mesa_align_malloc(sizeInBytes, 16); 707 } 708 709 if (!texImage->Data) { 710 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 711 return; 712 } 713 714 DBG("Upload image %dx%dx%d row_len %x pitch %x\n", 715 width, height, depth, width * texelBytes, dstRowStride); 716 717 /* Copy data. Would like to know when it's ok for us to eg. use 718 * the blitter to copy. Or, use the hardware to do the format 719 * conversion and copy: 720 */ 721 if (compressed_src) { 722 memcpy(texImage->Data, pixels, imageSize); 723 } 724 else { 725 const GLuint srcImageStride = 726 _mesa_image_image_stride(unpack, width, height, format, type); 727 GLint i; 728 const GLubyte *src = (const GLubyte *) pixels; 729 730 for (i = 0; i < depth; i++) { 731 if (!texImage->TexFormat->StoreImage(ctx, dims, 732 texImage->_BaseFormat, 733 texImage->TexFormat, 734 texImage->Data, 735 0, 0, 0, /* dstX/Y/Zoffset */ 736 dstRowStride, 737 texImage->ImageOffsets, 738 width, height, 1, 739 format, type, src, unpack)) { 740 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 741 } 742 743 if (stImage->pt && i + 1 < depth) { 744 /* unmap this slice */ 745 st_texture_image_unmap(ctx->st, stImage); 746 /* map next slice of 3D texture */ 747 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 748 transfer_usage, 0, 0, 749 stImage->base.Width, 750 stImage->base.Height); 751 src += srcImageStride; 752 } 753 } 754 } 755 756 _mesa_unmap_teximage_pbo(ctx, unpack); 757 758done: 759 if (stImage->pt && texImage->Data) { 760 st_texture_image_unmap(ctx->st, stImage); 761 texImage->Data = NULL; 762 } 763} 764 765 766static void 767st_TexImage3D(GLcontext * ctx, 768 GLenum target, GLint level, 769 GLint internalFormat, 770 GLint width, GLint height, GLint depth, 771 GLint border, 772 GLenum format, GLenum type, const void *pixels, 773 const struct gl_pixelstore_attrib *unpack, 774 struct gl_texture_object *texObj, 775 struct gl_texture_image *texImage) 776{ 777 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth, 778 border, format, type, pixels, unpack, texObj, texImage, 779 0, GL_FALSE); 780} 781 782 783static void 784st_TexImage2D(GLcontext * ctx, 785 GLenum target, GLint level, 786 GLint internalFormat, 787 GLint width, GLint height, GLint border, 788 GLenum format, GLenum type, const void *pixels, 789 const struct gl_pixelstore_attrib *unpack, 790 struct gl_texture_object *texObj, 791 struct gl_texture_image *texImage) 792{ 793 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 794 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 795} 796 797 798static void 799st_TexImage1D(GLcontext * ctx, 800 GLenum target, GLint level, 801 GLint internalFormat, 802 GLint width, GLint border, 803 GLenum format, GLenum type, const void *pixels, 804 const struct gl_pixelstore_attrib *unpack, 805 struct gl_texture_object *texObj, 806 struct gl_texture_image *texImage) 807{ 808 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border, 809 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE); 810} 811 812 813static void 814st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level, 815 GLint internalFormat, 816 GLint width, GLint height, GLint border, 817 GLsizei imageSize, const GLvoid *data, 818 struct gl_texture_object *texObj, 819 struct gl_texture_image *texImage) 820{ 821 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border, 822 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE); 823} 824 825 826 827/** 828 * glGetTexImage() helper: decompress a compressed texture by rendering 829 * a textured quad. Store the results in the user's buffer. 830 */ 831static void 832decompress_with_blit(GLcontext * ctx, GLenum target, GLint level, 833 GLenum format, GLenum type, GLvoid *pixels, 834 struct gl_texture_object *texObj, 835 struct gl_texture_image *texImage) 836{ 837 struct pipe_screen *screen = ctx->st->pipe->screen; 838 struct st_texture_image *stImage = st_texture_image(texImage); 839 const GLuint width = texImage->Width; 840 const GLuint height = texImage->Height; 841 struct pipe_surface *dst_surface; 842 struct pipe_texture *dst_texture; 843 struct pipe_transfer *tex_xfer; 844 845 /* create temp / dest surface */ 846 if (!util_create_rgba_surface(screen, width, height, 847 &dst_texture, &dst_surface)) { 848 _mesa_problem(ctx, "util_create_rgba_surface() failed " 849 "in decompress_with_blit()"); 850 return; 851 } 852 853 /* blit/render/decompress */ 854 util_blit_pixels_tex(ctx->st->blit, 855 stImage->pt, /* pipe_texture (src) */ 856 0, 0, /* src x0, y0 */ 857 width, height, /* src x1, y1 */ 858 dst_surface, /* pipe_surface (dst) */ 859 0, 0, /* dst x0, y0 */ 860 width, height, /* dst x1, y1 */ 861 0.0, /* z */ 862 PIPE_TEX_MIPFILTER_NEAREST); 863 864 /* map the dst_surface so we can read from it */ 865 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), 866 dst_texture, 0, 0, 0, 867 PIPE_TRANSFER_READ, 868 0, 0, width, height); 869 870 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels); 871 872 /* copy/pack data into user buffer */ 873 if (st_equal_formats(stImage->pt->format, format, type)) { 874 /* memcpy */ 875 const uint bytesPerRow = width * pf_get_size(stImage->pt->format); 876 ubyte *map = screen->transfer_map(screen, tex_xfer); 877 GLuint row; 878 for (row = 0; row < height; row++) { 879 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 880 height, format, type, row, 0); 881 memcpy(dest, map, bytesPerRow); 882 map += tex_xfer->stride; 883 } 884 screen->transfer_unmap(screen, tex_xfer); 885 } 886 else { 887 /* format translation via floats */ 888 GLuint row; 889 for (row = 0; row < height; row++) { 890 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */ 891 GLfloat rgba[4 * MAX_WIDTH]; 892 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width, 893 height, format, type, row, 0); 894 895 /* get float[4] rgba row from surface */ 896 pipe_get_tile_rgba(tex_xfer, 0, row, width, 1, rgba); 897 898 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format, 899 type, dest, &ctx->Pack, transferOps); 900 } 901 } 902 903 _mesa_unmap_pbo_dest(ctx, &ctx->Pack); 904 905 /* destroy the temp / dest surface */ 906 util_destroy_rgba_surface(dst_texture, dst_surface); 907} 908 909 910 911/** 912 * Need to map texture image into memory before copying image data, 913 * then unmap it. 914 */ 915static void 916st_get_tex_image(GLcontext * ctx, GLenum target, GLint level, 917 GLenum format, GLenum type, GLvoid * pixels, 918 struct gl_texture_object *texObj, 919 struct gl_texture_image *texImage, GLboolean compressed_dst) 920{ 921 struct st_texture_image *stImage = st_texture_image(texImage); 922 const GLuint dstImageStride = 923 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height, 924 format, type); 925 GLuint depth, i; 926 GLubyte *dest; 927 928 if (stImage->pt && 929 pf_is_compressed(stImage->pt->format) && 930 !compressed_dst) { 931 /* Need to decompress the texture. 932 * We'll do this by rendering a textured quad. 933 * Note that we only expect RGBA formats (no Z/depth formats). 934 */ 935 decompress_with_blit(ctx, target, level, format, type, pixels, 936 texObj, texImage); 937 return; 938 } 939 940 /* Map */ 941 if (stImage->pt) { 942 /* Image is stored in hardware format in a buffer managed by the 943 * kernel. Need to explicitly map and unmap it. 944 */ 945 unsigned face = _mesa_tex_target_to_face(target); 946 947 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 948 PIPE_TRANSFER_READ); 949 950 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 951 PIPE_TRANSFER_READ, 0, 0, 952 stImage->base.Width, 953 stImage->base.Height); 954 texImage->RowStride = stImage->transfer->stride / stImage->pt->block.size; 955 } 956 else { 957 /* Otherwise, the image should actually be stored in 958 * texImage->Data. This is pretty confusing for 959 * everybody, I'd much prefer to separate the two functions of 960 * texImage->Data - storage for texture images in main memory 961 * and access (ie mappings) of images. In other words, we'd 962 * create a new texImage->Map field and leave Data simply for 963 * storage. 964 */ 965 assert(texImage->Data); 966 } 967 968 depth = texImage->Depth; 969 texImage->Depth = 1; 970 971 dest = (GLubyte *) pixels; 972 973 for (i = 0; i < depth; i++) { 974 if (compressed_dst) { 975 _mesa_get_compressed_teximage(ctx, target, level, dest, 976 texObj, texImage); 977 } 978 else { 979 _mesa_get_teximage(ctx, target, level, format, type, dest, 980 texObj, texImage); 981 } 982 983 if (stImage->pt && i + 1 < depth) { 984 /* unmap this slice */ 985 st_texture_image_unmap(ctx->st, stImage); 986 /* map next slice of 3D texture */ 987 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1, 988 PIPE_TRANSFER_READ, 0, 0, 989 stImage->base.Width, 990 stImage->base.Height); 991 dest += dstImageStride; 992 } 993 } 994 995 texImage->Depth = depth; 996 997 /* Unmap */ 998 if (stImage->pt) { 999 st_texture_image_unmap(ctx->st, stImage); 1000 texImage->Data = NULL; 1001 } 1002} 1003 1004 1005static void 1006st_GetTexImage(GLcontext * ctx, GLenum target, GLint level, 1007 GLenum format, GLenum type, GLvoid * pixels, 1008 struct gl_texture_object *texObj, 1009 struct gl_texture_image *texImage) 1010{ 1011 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage, 1012 GL_FALSE); 1013} 1014 1015 1016static void 1017st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level, 1018 GLvoid *pixels, 1019 struct gl_texture_object *texObj, 1020 struct gl_texture_image *texImage) 1021{ 1022 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage, 1023 GL_TRUE); 1024} 1025 1026 1027 1028static void 1029st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level, 1030 GLint xoffset, GLint yoffset, GLint zoffset, 1031 GLint width, GLint height, GLint depth, 1032 GLenum format, GLenum type, const void *pixels, 1033 const struct gl_pixelstore_attrib *packing, 1034 struct gl_texture_object *texObj, 1035 struct gl_texture_image *texImage) 1036{ 1037 struct pipe_screen *screen = ctx->st->pipe->screen; 1038 struct st_texture_image *stImage = st_texture_image(texImage); 1039 GLuint dstRowStride; 1040 const GLuint srcImageStride = 1041 _mesa_image_image_stride(packing, width, height, format, type); 1042 GLint i; 1043 const GLubyte *src; 1044 /* init to silence warning only: */ 1045 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE; 1046 1047 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__, 1048 _mesa_lookup_enum_by_nr(target), 1049 level, xoffset, yoffset, width, height); 1050 1051 pixels = 1052 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format, 1053 type, pixels, packing, "glTexSubImage2D"); 1054 if (!pixels) 1055 return; 1056 1057 /* See if we can do texture compression with a blit/render. 1058 */ 1059 if (!ctx->Mesa_DXTn && 1060 is_compressed_mesa_format(texImage->TexFormat) && 1061 screen->is_format_supported(screen, 1062 stImage->pt->format, 1063 stImage->pt->target, 1064 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { 1065 if (compress_with_blit(ctx, target, level, 1066 xoffset, yoffset, zoffset, 1067 width, height, depth, 1068 format, type, pixels, packing, texImage)) { 1069 goto done; 1070 } 1071 } 1072 1073 /* Map buffer if necessary. Need to lock to prevent other contexts 1074 * from uploading the buffer under us. 1075 */ 1076 if (stImage->pt) { 1077 unsigned face = _mesa_tex_target_to_face(target); 1078 1079 if (format == GL_DEPTH_COMPONENT && 1080 pf_is_depth_and_stencil(stImage->pt->format)) 1081 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1082 else 1083 transfer_usage = PIPE_TRANSFER_WRITE; 1084 1085 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1086 transfer_usage); 1087 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset, 1088 transfer_usage, 1089 xoffset, yoffset, 1090 width, height); 1091 } 1092 1093 if (!texImage->Data) { 1094 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1095 return; 1096 } 1097 1098 src = (const GLubyte *) pixels; 1099 dstRowStride = stImage->transfer->stride; 1100 1101 for (i = 0; i < depth; i++) { 1102 if (!texImage->TexFormat->StoreImage(ctx, dims, texImage->_BaseFormat, 1103 texImage->TexFormat, 1104 texImage->Data, 1105 0, 0, 0, 1106 dstRowStride, 1107 texImage->ImageOffsets, 1108 width, height, 1, 1109 format, type, src, packing)) { 1110 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1111 } 1112 1113 if (stImage->pt && i + 1 < depth) { 1114 /* unmap this slice */ 1115 st_texture_image_unmap(ctx->st, stImage); 1116 /* map next slice of 3D texture */ 1117 texImage->Data = st_texture_image_map(ctx->st, stImage, 1118 zoffset + i + 1, 1119 transfer_usage, 1120 xoffset, yoffset, 1121 width, height); 1122 src += srcImageStride; 1123 } 1124 } 1125 1126 _mesa_unmap_teximage_pbo(ctx, packing); 1127 1128done: 1129 if (stImage->pt) { 1130 st_texture_image_unmap(ctx->st, stImage); 1131 texImage->Data = NULL; 1132 } 1133} 1134 1135 1136 1137static void 1138st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1139 GLint xoffset, GLint yoffset, GLint zoffset, 1140 GLsizei width, GLsizei height, GLsizei depth, 1141 GLenum format, GLenum type, const GLvoid *pixels, 1142 const struct gl_pixelstore_attrib *packing, 1143 struct gl_texture_object *texObj, 1144 struct gl_texture_image *texImage) 1145{ 1146 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 1147 width, height, depth, format, type, 1148 pixels, packing, texObj, texImage); 1149} 1150 1151 1152static void 1153st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1154 GLint xoffset, GLint yoffset, 1155 GLsizei width, GLsizei height, 1156 GLenum format, GLenum type, const GLvoid * pixels, 1157 const struct gl_pixelstore_attrib *packing, 1158 struct gl_texture_object *texObj, 1159 struct gl_texture_image *texImage) 1160{ 1161 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0, 1162 width, height, 1, format, type, 1163 pixels, packing, texObj, texImage); 1164} 1165 1166 1167static void 1168st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1169 GLint xoffset, GLsizei width, GLenum format, GLenum type, 1170 const GLvoid * pixels, 1171 const struct gl_pixelstore_attrib *packing, 1172 struct gl_texture_object *texObj, 1173 struct gl_texture_image *texImage) 1174{ 1175 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1, 1176 format, type, pixels, packing, texObj, texImage); 1177} 1178 1179 1180static void 1181st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level, 1182 GLint xoffset, GLsizei width, 1183 GLenum format, 1184 GLsizei imageSize, const GLvoid *data, 1185 struct gl_texture_object *texObj, 1186 struct gl_texture_image *texImage) 1187{ 1188 assert(0); 1189} 1190 1191 1192static void 1193st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level, 1194 GLint xoffset, GLint yoffset, 1195 GLsizei width, GLint height, 1196 GLenum format, 1197 GLsizei imageSize, const GLvoid *data, 1198 struct gl_texture_object *texObj, 1199 struct gl_texture_image *texImage) 1200{ 1201 struct st_texture_image *stImage = st_texture_image(texImage); 1202 struct pipe_format_block block; 1203 int srcBlockStride; 1204 int dstBlockStride; 1205 int y; 1206 1207 if (stImage->pt) { 1208 unsigned face = _mesa_tex_target_to_face(target); 1209 1210 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level, 1211 PIPE_TRANSFER_WRITE); 1212 texImage->Data = st_texture_image_map(ctx->st, stImage, 0, 1213 PIPE_TRANSFER_WRITE, 1214 xoffset, yoffset, 1215 width, height); 1216 1217 block = stImage->pt->block; 1218 srcBlockStride = pf_get_stride(&block, width); 1219 dstBlockStride = stImage->transfer->stride; 1220 } else { 1221 assert(stImage->pt); 1222 /* TODO find good values for block and strides */ 1223 /* TODO also adjust texImage->data for yoffset/xoffset */ 1224 return; 1225 } 1226 1227 if (!texImage->Data) { 1228 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage"); 1229 return; 1230 } 1231 1232 assert(xoffset % block.width == 0); 1233 assert(yoffset % block.height == 0); 1234 assert(width % block.width == 0); 1235 assert(height % block.height == 0); 1236 1237 for (y = 0; y < height; y += block.height) { 1238 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */ 1239 const char *src = (const char*)data + srcBlockStride * pf_get_nblocksy(&block, y); 1240 char *dst = (char*)texImage->Data + dstBlockStride * pf_get_nblocksy(&block, y); 1241 memcpy(dst, src, pf_get_stride(&block, width)); 1242 } 1243 1244 if (stImage->pt) { 1245 st_texture_image_unmap(ctx->st, stImage); 1246 texImage->Data = NULL; 1247 } 1248} 1249 1250 1251static void 1252st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level, 1253 GLint xoffset, GLint yoffset, GLint zoffset, 1254 GLsizei width, GLint height, GLint depth, 1255 GLenum format, 1256 GLsizei imageSize, const GLvoid *data, 1257 struct gl_texture_object *texObj, 1258 struct gl_texture_image *texImage) 1259{ 1260 assert(0); 1261} 1262 1263 1264 1265/** 1266 * Do a CopyTexSubImage operation using a read transfer from the source, 1267 * a write transfer to the destination and get_tile()/put_tile() to access 1268 * the pixels/texels. 1269 * 1270 * Note: srcY=0=TOP of renderbuffer 1271 */ 1272static void 1273fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level, 1274 struct st_renderbuffer *strb, 1275 struct st_texture_image *stImage, 1276 GLenum baseFormat, 1277 GLint destX, GLint destY, GLint destZ, 1278 GLint srcX, GLint srcY, 1279 GLsizei width, GLsizei height) 1280{ 1281 struct pipe_context *pipe = ctx->st->pipe; 1282 struct pipe_screen *screen = pipe->screen; 1283 struct pipe_transfer *src_trans; 1284 GLvoid *texDest; 1285 enum pipe_transfer_usage transfer_usage; 1286 1287 assert(width <= MAX_WIDTH); 1288 1289 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1290 srcY = strb->Base.Height - srcY - height; 1291 } 1292 1293 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx), 1294 strb->texture, 1295 0, 0, 0, 1296 PIPE_TRANSFER_READ, 1297 srcX, srcY, 1298 width, height); 1299 1300 if (baseFormat == GL_DEPTH_COMPONENT && 1301 pf_is_depth_and_stencil(stImage->pt->format)) 1302 transfer_usage = PIPE_TRANSFER_READ_WRITE; 1303 else 1304 transfer_usage = PIPE_TRANSFER_WRITE; 1305 1306 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0, 1307 transfer_usage); 1308 1309 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage, 1310 destX, destY, width, height); 1311 1312 if (baseFormat == GL_DEPTH_COMPONENT || 1313 baseFormat == GL_DEPTH24_STENCIL8) { 1314 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F || 1315 ctx->Pixel.DepthBias != 0.0F); 1316 GLint row, yStep; 1317 1318 /* determine bottom-to-top vs. top-to-bottom order for src buffer */ 1319 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1320 srcY = height - 1; 1321 yStep = -1; 1322 } 1323 else { 1324 srcY = 0; 1325 yStep = 1; 1326 } 1327 1328 /* To avoid a large temp memory allocation, do copy row by row */ 1329 for (row = 0; row < height; row++, srcY += yStep) { 1330 uint data[MAX_WIDTH]; 1331 pipe_get_tile_z(src_trans, 0, srcY, width, 1, data); 1332 if (scaleOrBias) { 1333 _mesa_scale_and_bias_depth_uint(ctx, width, data); 1334 } 1335 pipe_put_tile_z(stImage->transfer, 0, row, width, 1, data); 1336 } 1337 } 1338 else { 1339 /* RGBA format */ 1340 GLfloat *tempSrc = 1341 (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat)); 1342 1343 if (tempSrc && texDest) { 1344 const GLint dims = 2; 1345 const GLint dstRowStride = stImage->transfer->stride; 1346 struct gl_texture_image *texImage = &stImage->base; 1347 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking; 1348 1349 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { 1350 unpack.Invert = GL_TRUE; 1351 } 1352 1353 /* get float/RGBA image from framebuffer */ 1354 /* XXX this usually involves a lot of int/float conversion. 1355 * try to avoid that someday. 1356 */ 1357 pipe_get_tile_rgba(src_trans, 0, 0, width, height, tempSrc); 1358 1359 /* Store into texture memory. 1360 * Note that this does some special things such as pixel transfer 1361 * ops and format conversion. In particular, if the dest tex format 1362 * is actually RGBA but the user created the texture as GL_RGB we 1363 * need to fill-in/override the alpha channel with 1.0. 1364 */ 1365 texImage->TexFormat->StoreImage(ctx, dims, 1366 texImage->_BaseFormat, 1367 texImage->TexFormat, 1368 texDest, 1369 0, 0, 0, 1370 dstRowStride, 1371 texImage->ImageOffsets, 1372 width, height, 1, 1373 GL_RGBA, GL_FLOAT, tempSrc, /* src */ 1374 &unpack); 1375 } 1376 else { 1377 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage"); 1378 } 1379 1380 if (tempSrc) 1381 _mesa_free(tempSrc); 1382 } 1383 1384 st_texture_image_unmap(ctx->st, stImage); 1385 screen->tex_transfer_destroy(src_trans); 1386} 1387 1388 1389static unsigned 1390compatible_src_dst_formats(const struct gl_renderbuffer *src, 1391 const struct gl_texture_image *dst) 1392{ 1393 const GLenum srcFormat = src->_BaseFormat; 1394 const GLenum dstLogicalFormat = dst->_BaseFormat; 1395 1396 if (srcFormat == dstLogicalFormat) { 1397 /* This is the same as matching_base_formats, which should 1398 * always pass, as it did previously. 1399 */ 1400 return TGSI_WRITEMASK_XYZW; 1401 } 1402 else if (srcFormat == GL_RGBA && 1403 dstLogicalFormat == GL_RGB) { 1404 /* Add a single special case to cope with RGBA->RGB transfers, 1405 * setting A to 1.0 to cope with situations where the RGB 1406 * destination is actually stored as RGBA. 1407 */ 1408 return TGSI_WRITEMASK_XYZ; /* A ==> 1.0 */ 1409 } 1410 else { 1411 /* Otherwise fail. 1412 */ 1413 return 0; 1414 } 1415} 1416 1417 1418 1419/** 1420 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible. 1421 * Note that the region to copy has already been clipped so we know we 1422 * won't read from outside the source renderbuffer's bounds. 1423 * 1424 * Note: srcY=0=Bottom of renderbuffer (GL convention) 1425 */ 1426static void 1427st_copy_texsubimage(GLcontext *ctx, 1428 GLenum target, GLint level, 1429 GLint destX, GLint destY, GLint destZ, 1430 GLint srcX, GLint srcY, 1431 GLsizei width, GLsizei height) 1432{ 1433 struct gl_texture_unit *texUnit = 1434 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1435 struct gl_texture_object *texObj = 1436 _mesa_select_tex_object(ctx, texUnit, target); 1437 struct gl_texture_image *texImage = 1438 _mesa_select_tex_image(ctx, texObj, target, level); 1439 struct st_texture_image *stImage = st_texture_image(texImage); 1440 const GLenum texBaseFormat = texImage->InternalFormat; 1441 struct gl_framebuffer *fb = ctx->ReadBuffer; 1442 struct st_renderbuffer *strb; 1443 struct pipe_context *pipe = ctx->st->pipe; 1444 struct pipe_screen *screen = pipe->screen; 1445 enum pipe_format dest_format, src_format; 1446 GLboolean use_fallback = GL_TRUE; 1447 GLboolean matching_base_formats; 1448 GLuint format_writemask; 1449 struct pipe_surface *dest_surface = NULL; 1450 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP); 1451 1452 /* any rendering in progress must flushed before we grab the fb image */ 1453 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL); 1454 1455 /* make sure finalize_textures has been called? 1456 */ 1457 if (0) st_validate_state(ctx->st); 1458 1459 /* determine if copying depth or color data */ 1460 if (texBaseFormat == GL_DEPTH_COMPONENT || 1461 texBaseFormat == GL_DEPTH24_STENCIL8) { 1462 strb = st_renderbuffer(fb->_DepthBuffer); 1463 } 1464 else if (texBaseFormat == GL_DEPTH_STENCIL_EXT) { 1465 strb = st_renderbuffer(fb->_StencilBuffer); 1466 } 1467 else { 1468 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */ 1469 strb = st_renderbuffer(fb->_ColorReadBuffer); 1470 } 1471 1472 if (!strb || !strb->surface || !stImage->pt) { 1473 debug_printf("%s: null strb or stImage\n", __FUNCTION__); 1474 return; 1475 } 1476 1477 if (srcX < 0) { 1478 width -= -srcX; 1479 destX += -srcX; 1480 srcX = 0; 1481 } 1482 1483 if (srcY < 0) { 1484 height -= -srcY; 1485 destY += -srcY; 1486 srcY = 0; 1487 } 1488 1489 if (destX < 0) { 1490 width -= -destX; 1491 srcX += -destX; 1492 destX = 0; 1493 } 1494 1495 if (destY < 0) { 1496 height -= -destY; 1497 srcY += -destY; 1498 destY = 0; 1499 } 1500 1501 if (width < 0 || height < 0) 1502 return; 1503 1504 1505 assert(strb); 1506 assert(strb->surface); 1507 assert(stImage->pt); 1508 1509 src_format = strb->surface->format; 1510 dest_format = stImage->pt->format; 1511 1512 /* 1513 * Determine if the src framebuffer and dest texture have the same 1514 * base format. We need this to detect a case such as the framebuffer 1515 * being GL_RGBA but the texture being GL_RGB. If the actual hardware 1516 * texture format stores RGBA we need to set A=1 (overriding the 1517 * framebuffer's alpha values). We can't do that with the blit or 1518 * textured-quad paths. 1519 */ 1520 matching_base_formats = (strb->Base._BaseFormat == texImage->_BaseFormat); 1521 format_writemask = compatible_src_dst_formats(&strb->Base, texImage); 1522 1523 if (ctx->_ImageTransferState == 0x0) { 1524 1525 if (matching_base_formats && 1526 src_format == dest_format && 1527 !do_flip) 1528 { 1529 /* use surface_copy() / blit */ 1530 1531 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1532 stImage->face, stImage->level, 1533 destZ, 1534 PIPE_BUFFER_USAGE_GPU_WRITE); 1535 1536 /* for surface_copy(), y=0=top, always */ 1537 pipe->surface_copy(pipe, 1538 /* dest */ 1539 dest_surface, 1540 destX, destY, 1541 /* src */ 1542 strb->surface, 1543 srcX, srcY, 1544 /* size */ 1545 width, height); 1546 use_fallback = GL_FALSE; 1547 } 1548 else if (format_writemask && 1549 screen->is_format_supported(screen, src_format, 1550 PIPE_TEXTURE_2D, 1551 PIPE_TEXTURE_USAGE_SAMPLER, 1552 0) && 1553 screen->is_format_supported(screen, dest_format, 1554 PIPE_TEXTURE_2D, 1555 PIPE_TEXTURE_USAGE_RENDER_TARGET, 1556 0)) { 1557 /* draw textured quad to do the copy */ 1558 GLint srcY0, srcY1; 1559 1560 dest_surface = screen->get_tex_surface(screen, stImage->pt, 1561 stImage->face, stImage->level, 1562 destZ, 1563 PIPE_BUFFER_USAGE_GPU_WRITE); 1564 1565 if (do_flip) { 1566 srcY1 = strb->Base.Height - srcY - height; 1567 srcY0 = srcY1 + height; 1568 } 1569 else { 1570 srcY0 = srcY; 1571 srcY1 = srcY0 + height; 1572 } 1573 util_blit_pixels_writemask(ctx->st->blit, 1574 strb->surface, 1575 srcX, srcY0, 1576 srcX + width, srcY1, 1577 dest_surface, 1578 destX, destY, 1579 destX + width, destY + height, 1580 0.0, PIPE_TEX_MIPFILTER_NEAREST, 1581 format_writemask); 1582 use_fallback = GL_FALSE; 1583 } 1584 1585 if (dest_surface) 1586 pipe_surface_reference(&dest_surface, NULL); 1587 } 1588 1589 if (use_fallback) { 1590 /* software fallback */ 1591 fallback_copy_texsubimage(ctx, target, level, 1592 strb, stImage, texBaseFormat, 1593 destX, destY, destZ, 1594 srcX, srcY, width, height); 1595 } 1596} 1597 1598 1599 1600static void 1601st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level, 1602 GLenum internalFormat, 1603 GLint x, GLint y, GLsizei width, GLint border) 1604{ 1605 struct gl_texture_unit *texUnit = 1606 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1607 struct gl_texture_object *texObj = 1608 _mesa_select_tex_object(ctx, texUnit, target); 1609 struct gl_texture_image *texImage = 1610 _mesa_select_tex_image(ctx, texObj, target, level); 1611 1612 /* Setup or redefine the texture object, texture and texture 1613 * image. Don't populate yet. 1614 */ 1615 ctx->Driver.TexImage1D(ctx, target, level, internalFormat, 1616 width, border, 1617 GL_RGBA, CHAN_TYPE, NULL, 1618 &ctx->DefaultPacking, texObj, texImage); 1619 1620 st_copy_texsubimage(ctx, target, level, 1621 0, 0, 0, /* destX,Y,Z */ 1622 x, y, width, 1); /* src X, Y, size */ 1623} 1624 1625 1626static void 1627st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level, 1628 GLenum internalFormat, 1629 GLint x, GLint y, GLsizei width, GLsizei height, 1630 GLint border) 1631{ 1632 struct gl_texture_unit *texUnit = 1633 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1634 struct gl_texture_object *texObj = 1635 _mesa_select_tex_object(ctx, texUnit, target); 1636 struct gl_texture_image *texImage = 1637 _mesa_select_tex_image(ctx, texObj, target, level); 1638 1639 /* Setup or redefine the texture object, texture and texture 1640 * image. Don't populate yet. 1641 */ 1642 ctx->Driver.TexImage2D(ctx, target, level, internalFormat, 1643 width, height, border, 1644 GL_RGBA, CHAN_TYPE, NULL, 1645 &ctx->DefaultPacking, texObj, texImage); 1646 1647 st_copy_texsubimage(ctx, target, level, 1648 0, 0, 0, /* destX,Y,Z */ 1649 x, y, width, height); /* src X, Y, size */ 1650} 1651 1652 1653static void 1654st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level, 1655 GLint xoffset, GLint x, GLint y, GLsizei width) 1656{ 1657 const GLint yoffset = 0, zoffset = 0; 1658 const GLsizei height = 1; 1659 st_copy_texsubimage(ctx, target, level, 1660 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1661 x, y, width, height); /* src X, Y, size */ 1662} 1663 1664 1665static void 1666st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, 1667 GLint xoffset, GLint yoffset, 1668 GLint x, GLint y, GLsizei width, GLsizei height) 1669{ 1670 const GLint zoffset = 0; 1671 st_copy_texsubimage(ctx, target, level, 1672 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1673 x, y, width, height); /* src X, Y, size */ 1674} 1675 1676 1677static void 1678st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level, 1679 GLint xoffset, GLint yoffset, GLint zoffset, 1680 GLint x, GLint y, GLsizei width, GLsizei height) 1681{ 1682 st_copy_texsubimage(ctx, target, level, 1683 xoffset, yoffset, zoffset, /* destX,Y,Z */ 1684 x, y, width, height); /* src X, Y, size */ 1685} 1686 1687 1688/** 1689 * Compute which mipmap levels that really need to be sent to the hardware. 1690 * This depends on the base image size, GL_TEXTURE_MIN_LOD, 1691 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL. 1692 */ 1693static void 1694calculate_first_last_level(struct st_texture_object *stObj) 1695{ 1696 struct gl_texture_object *tObj = &stObj->base; 1697 1698 /* These must be signed values. MinLod and MaxLod can be negative numbers, 1699 * and having firstLevel and lastLevel as signed prevents the need for 1700 * extra sign checks. 1701 */ 1702 GLint firstLevel; 1703 GLint lastLevel; 1704 1705 /* Yes, this looks overly complicated, but it's all needed. 1706 */ 1707 switch (tObj->Target) { 1708 case GL_TEXTURE_1D: 1709 case GL_TEXTURE_2D: 1710 case GL_TEXTURE_3D: 1711 case GL_TEXTURE_CUBE_MAP: 1712 if (tObj->MinFilter == GL_NEAREST || tObj->MinFilter == GL_LINEAR) { 1713 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL. 1714 */ 1715 firstLevel = lastLevel = tObj->BaseLevel; 1716 } 1717 else { 1718 firstLevel = 0; 1719 lastLevel = MIN2(tObj->MaxLevel, 1720 (int) tObj->Image[0][tObj->BaseLevel]->WidthLog2); 1721 } 1722 break; 1723 case GL_TEXTURE_RECTANGLE_NV: 1724 case GL_TEXTURE_4D_SGIS: 1725 firstLevel = lastLevel = 0; 1726 break; 1727 default: 1728 return; 1729 } 1730 1731 stObj->lastLevel = lastLevel; 1732} 1733 1734 1735static void 1736copy_image_data_to_texture(struct st_context *st, 1737 struct st_texture_object *stObj, 1738 GLuint dstLevel, 1739 struct st_texture_image *stImage) 1740{ 1741 if (stImage->pt) { 1742 /* Copy potentially with the blitter: 1743 */ 1744 st_texture_image_copy(st->pipe, 1745 stObj->pt, dstLevel, /* dest texture, level */ 1746 stImage->pt, /* src texture */ 1747 stImage->face 1748 ); 1749 1750 pipe_texture_reference(&stImage->pt, NULL); 1751 } 1752 else if (stImage->base.Data) { 1753 assert(stImage->base.Data != NULL); 1754 1755 /* More straightforward upload. 1756 */ 1757 1758 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel, 1759 PIPE_TRANSFER_WRITE); 1760 1761 1762 st_texture_image_data(st, 1763 stObj->pt, 1764 stImage->face, 1765 dstLevel, 1766 stImage->base.Data, 1767 stImage->base.RowStride * 1768 stObj->pt->block.size, 1769 stImage->base.RowStride * 1770 stImage->base.Height * 1771 stObj->pt->block.size); 1772 _mesa_align_free(stImage->base.Data); 1773 stImage->base.Data = NULL; 1774 } 1775 1776 pipe_texture_reference(&stImage->pt, stObj->pt); 1777} 1778 1779 1780/** 1781 * Called during state validation. When this function is finished, 1782 * the texture object should be ready for rendering. 1783 * \return GL_TRUE for success, GL_FALSE for failure (out of mem) 1784 */ 1785GLboolean 1786st_finalize_texture(GLcontext *ctx, 1787 struct pipe_context *pipe, 1788 struct gl_texture_object *tObj, 1789 GLboolean *needFlush) 1790{ 1791 struct st_texture_object *stObj = st_texture_object(tObj); 1792 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; 1793 GLuint cpp, face; 1794 struct st_texture_image *firstImage; 1795 1796 *needFlush = GL_FALSE; 1797 1798 /* We know/require this is true by now: 1799 */ 1800 assert(stObj->base._Complete); 1801 1802 /* What levels must the texture include at a minimum? 1803 */ 1804 calculate_first_last_level(stObj); 1805 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]); 1806 1807 /* If both firstImage and stObj point to a texture which can contain 1808 * all active images, favour firstImage. Note that because of the 1809 * completeness requirement, we know that the image dimensions 1810 * will match. 1811 */ 1812 if (firstImage->pt && 1813 firstImage->pt != stObj->pt && 1814 firstImage->pt->last_level >= stObj->lastLevel) { 1815 pipe_texture_reference(&stObj->pt, firstImage->pt); 1816 } 1817 1818 /* FIXME: determine format block instead of cpp */ 1819 if (firstImage->base.IsCompressed) { 1820 cpp = compressed_num_bytes(firstImage->base.TexFormat->MesaFormat); 1821 } 1822 else { 1823 cpp = firstImage->base.TexFormat->TexelBytes; 1824 } 1825 1826 /* If we already have a gallium texture, check that it matches the texture 1827 * object's format, target, size, num_levels, etc. 1828 */ 1829 if (stObj->pt) { 1830 const enum pipe_format fmt = 1831 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat); 1832 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) || 1833 stObj->pt->format != fmt || 1834 stObj->pt->last_level < stObj->lastLevel || 1835 stObj->pt->width[0] != firstImage->base.Width2 || 1836 stObj->pt->height[0] != firstImage->base.Height2 || 1837 stObj->pt->depth[0] != firstImage->base.Depth2 || 1838 /* Nominal bytes per pixel: */ 1839 stObj->pt->block.size / stObj->pt->block.width != cpp) 1840 { 1841 pipe_texture_reference(&stObj->pt, NULL); 1842 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER; 1843 } 1844 } 1845 1846 /* May need to create a new gallium texture: 1847 */ 1848 if (!stObj->pt) { 1849 const enum pipe_format fmt = 1850 st_mesa_format_to_pipe_format(firstImage->base.TexFormat->MesaFormat); 1851 GLuint usage = default_usage(fmt); 1852 1853 stObj->pt = st_texture_create(ctx->st, 1854 gl_target_to_pipe(stObj->base.Target), 1855 fmt, 1856 stObj->lastLevel, 1857 firstImage->base.Width2, 1858 firstImage->base.Height2, 1859 firstImage->base.Depth2, 1860 usage); 1861 1862 if (!stObj->pt) { 1863 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage"); 1864 return GL_FALSE; 1865 } 1866 } 1867 1868 /* Pull in any images not in the object's texture: 1869 */ 1870 for (face = 0; face < nr_faces; face++) { 1871 GLuint level; 1872 for (level = 0; level <= stObj->lastLevel; level++) { 1873 struct st_texture_image *stImage = 1874 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]); 1875 1876 /* Need to import images in main memory or held in other textures. 1877 */ 1878 if (stImage && stObj->pt != stImage->pt) { 1879 copy_image_data_to_texture(ctx->st, stObj, level, stImage); 1880 *needFlush = GL_TRUE; 1881 } 1882 } 1883 } 1884 1885 return GL_TRUE; 1886} 1887 1888 1889/** 1890 * Returns pointer to a default/dummy texture. 1891 * This is typically used when the current shader has tex/sample instructions 1892 * but the user has not provided a (any) texture(s). 1893 */ 1894struct gl_texture_object * 1895st_get_default_texture(struct st_context *st) 1896{ 1897 if (!st->default_texture) { 1898 static const GLenum target = GL_TEXTURE_2D; 1899 GLubyte pixels[16][16][4]; 1900 struct gl_texture_object *texObj; 1901 struct gl_texture_image *texImg; 1902 GLuint i, j; 1903 1904 /* The ARB_fragment_program spec says (0,0,0,1) should be returned 1905 * when attempting to sample incomplete textures. 1906 */ 1907 for (i = 0; i < 16; i++) { 1908 for (j = 0; j < 16; j++) { 1909 pixels[i][j][0] = 0; 1910 pixels[i][j][1] = 0; 1911 pixels[i][j][2] = 0; 1912 pixels[i][j][3] = 255; 1913 } 1914 } 1915 1916 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target); 1917 1918 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0); 1919 1920 _mesa_init_teximage_fields(st->ctx, target, texImg, 1921 16, 16, 1, 0, /* w, h, d, border */ 1922 GL_RGBA); 1923 1924 st_TexImage(st->ctx, 2, target, 1925 0, GL_RGBA, /* level, intformat */ 1926 16, 16, 1, 0, /* w, h, d, border */ 1927 GL_RGBA, GL_UNSIGNED_BYTE, pixels, 1928 &st->ctx->DefaultPacking, 1929 texObj, texImg, 1930 0, 0); 1931 1932 texObj->MinFilter = GL_NEAREST; 1933 texObj->MagFilter = GL_NEAREST; 1934 texObj->_Complete = GL_TRUE; 1935 1936 st->default_texture = texObj; 1937 } 1938 return st->default_texture; 1939} 1940 1941 1942void 1943st_init_texture_functions(struct dd_function_table *functions) 1944{ 1945 functions->ChooseTextureFormat = st_ChooseTextureFormat; 1946 functions->TexImage1D = st_TexImage1D; 1947 functions->TexImage2D = st_TexImage2D; 1948 functions->TexImage3D = st_TexImage3D; 1949 functions->TexSubImage1D = st_TexSubImage1D; 1950 functions->TexSubImage2D = st_TexSubImage2D; 1951 functions->TexSubImage3D = st_TexSubImage3D; 1952 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D; 1953 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D; 1954 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D; 1955 functions->CopyTexImage1D = st_CopyTexImage1D; 1956 functions->CopyTexImage2D = st_CopyTexImage2D; 1957 functions->CopyTexSubImage1D = st_CopyTexSubImage1D; 1958 functions->CopyTexSubImage2D = st_CopyTexSubImage2D; 1959 functions->CopyTexSubImage3D = st_CopyTexSubImage3D; 1960 functions->GenerateMipmap = st_generate_mipmap; 1961 1962 functions->GetTexImage = st_GetTexImage; 1963 1964 /* compressed texture functions */ 1965 functions->CompressedTexImage2D = st_CompressedTexImage2D; 1966 functions->GetCompressedTexImage = st_GetCompressedTexImage; 1967 functions->CompressedTextureSize = _mesa_compressed_texture_size; 1968 1969 functions->NewTextureObject = st_NewTextureObject; 1970 functions->NewTextureImage = st_NewTextureImage; 1971 functions->DeleteTexture = st_DeleteTextureObject; 1972 functions->FreeTexImageData = st_FreeTextureImageData; 1973 functions->UpdateTexturePalette = 0; 1974 1975 functions->TextureMemCpy = do_memcpy; 1976 1977 /* XXX Temporary until we can query pipe's texture sizes */ 1978 functions->TestProxyTexImage = _mesa_test_proxy_teximage; 1979} 1980