src/mesa/drivers/dri/intel/intel_tex_image.c

   1
   2 #include "main/glheader.h"
   3 #include "main/macros.h"
   4 #include "main/mfeatures.h"
   5 #include "main/mtypes.h"
   6 #include "main/enums.h"
   7 #include "main/bufferobj.h"
   8 #include "main/context.h"
   9 #include "main/formats.h"
  10 #include "main/pbo.h"
  11 #include "main/renderbuffer.h"
  12 #include "main/texcompress.h"
  13 #include "main/texgetimage.h"
  14 #include "main/texobj.h"
  15 #include "main/teximage.h"
  16 #include "main/texstore.h"
  17
  18 #include "intel_context.h"
  19 #include "intel_mipmap_tree.h"
  20 #include "intel_buffer_objects.h"
  21 #include "intel_batchbuffer.h"
  22 #include "intel_tex.h"
  23 #include "intel_blit.h"
  24 #include "intel_fbo.h"
  25 #include "intel_span.h"
  26
  27 #ifndef I915
  28 #include "brw_context.h"
  29 #endif
  30
  31 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  32
  33 /* Work back from the specified level of the image to the baselevel and create a
  34  * miptree of that size.
  35  */
  36 struct intel_mipmap_tree *
  37 intel_miptree_create_for_teximage(struct intel_context *intel,
  38                                   struct intel_texture_object *intelObj,
  39                                   struct intel_texture_image *intelImage,
  40                                   bool expect_accelerated_upload)
  41 {
  42    GLuint firstLevel;
  43    GLuint lastLevel;
  44    int width, height, depth;
  45    GLuint i;
  46
  47    intel_miptree_get_dimensions_for_image(&intelImage->base.Base,
  48                                           &width, &height, &depth);
  49
  50    DBG("%s\n", __FUNCTION__);
  51
  52    if (intelImage->base.Base.Level > intelObj->base.BaseLevel &&
  53        (width == 1 ||
  54         (intelObj->base.Target != GL_TEXTURE_1D && height == 1) ||
  55         (intelObj->base.Target == GL_TEXTURE_3D && depth == 1))) {
  56       /* For this combination, we're at some lower mipmap level and
  57        * some important dimension is 1.  We can't extrapolate up to a
  58        * likely base level width/height/depth for a full mipmap stack
  59        * from this info, so just allocate this one level.
  60        */
  61       firstLevel = intelImage->base.Base.Level;
  62       lastLevel = intelImage->base.Base.Level;
  63    } else {
  64       /* If this image disrespects BaseLevel, allocate from level zero.
  65        * Usually BaseLevel == 0, so it's unlikely to happen.
  66        */
  67       if (intelImage->base.Base.Level < intelObj->base.BaseLevel)
  68          firstLevel = 0;
  69       else
  70          firstLevel = intelObj->base.BaseLevel;
  71
  72       /* Figure out image dimensions at start level. */
  73       for (i = intelImage->base.Base.Level; i > firstLevel; i--) {
  74          width <<= 1;
  75          if (height != 1)
  76             height <<= 1;
  77          if (depth != 1)
  78             depth <<= 1;
  79       }
  80
  81       /* Guess a reasonable value for lastLevel.  This is probably going
  82        * to be wrong fairly often and might mean that we have to look at
  83        * resizable buffers, or require that buffers implement lazy
  84        * pagetable arrangements.
  85        */
  86       if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
  87            intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
  88           intelImage->base.Base.Level == firstLevel &&
  89           (intel->gen < 4 || firstLevel == 0)) {
  90          lastLevel = firstLevel;
  91       } else {
  92          lastLevel = (firstLevel +
  93                       _mesa_get_tex_max_num_levels(intelObj->base.Target,
  94                                                    width, height, depth) - 1);
  95       }
  96    }
  97
  98    return intel_miptree_create(intel,
  99                                intelObj->base.Target,
 100                                intelImage->base.Base.TexFormat,
 101                                firstLevel,
 102                                lastLevel,
 103                                width,
 104                                height,
 105                                depth,
 106                                expect_accelerated_upload,
 107                                0 /* num_samples */,
 108                                false /* force_y_tiling */);
 109 }
 110
 111 /* There are actually quite a few combinations this will work for,
 112  * more than what I've listed here.
 113  */
 114 static bool
 115 check_pbo_format(GLenum format, GLenum type,
 116                  gl_format mesa_format)
 117 {
 118    switch (mesa_format) {
 119    case MESA_FORMAT_ARGB8888:
 120       return (format == GL_BGRA && (type == GL_UNSIGNED_BYTE ||
 121                                     type == GL_UNSIGNED_INT_8_8_8_8_REV));
 122    case MESA_FORMAT_RGB565:
 123       return (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5);
 124    case MESA_FORMAT_L8:
 125       return (format == GL_LUMINANCE && type == GL_UNSIGNED_BYTE);
 126    case MESA_FORMAT_YCBCR:
 127       return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE);
 128    default:
 129       return false;
 130    }
 131 }
 132
 133
 134 /* XXX: Do this for TexSubImage also:
 135  */
 136 static bool
 137 try_pbo_upload(struct gl_context *ctx,
 138                struct gl_texture_image *image,
 139                const struct gl_pixelstore_attrib *unpack,
 140                GLenum format, GLenum type, const void *pixels)
 141 {
 142    struct intel_texture_image *intelImage = intel_texture_image(image);
 143    struct intel_context *intel = intel_context(ctx);
 144    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 145    GLuint src_offset, src_stride;
 146    GLuint dst_x, dst_y;
 147    drm_intel_bo *dst_buffer, *src_buffer;
 148
 149    if (!_mesa_is_bufferobj(unpack->BufferObj))
 150       return false;
 151
 152    DBG("trying pbo upload\n");
 153
 154    if (intel->ctx._ImageTransferState ||
 155        unpack->SkipPixels || unpack->SkipRows) {
 156       DBG("%s: image transfer\n", __FUNCTION__);
 157       return false;
 158    }
 159
 160    if (!check_pbo_format(format, type, intelImage->base.Base.TexFormat)) {
 161       DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
 162           __FUNCTION__, _mesa_get_format_name(intelImage->base.Base.TexFormat),
 163           format, type);
 164       return false;
 165    }
 166
 167    ctx->Driver.AllocTextureImageBuffer(ctx, image);
 168
 169    if (!intelImage->mt) {
 170       DBG("%s: no miptree\n", __FUNCTION__);
 171       return false;
 172    }
 173
 174    if (image->TexObject->Target == GL_TEXTURE_1D_ARRAY ||
 175        image->TexObject->Target == GL_TEXTURE_2D_ARRAY) {
 176       DBG("%s: no support for array textures\n", __FUNCTION__);
 177       return false;
 178    }
 179
 180    dst_buffer = intelImage->mt->region->bo;
 181    src_buffer = intel_bufferobj_source(intel, pbo, 64, &src_offset);
 182    /* note: potential 64-bit ptr to 32-bit int cast */
 183    src_offset += (GLuint) (unsigned long) pixels;
 184
 185    if (unpack->RowLength > 0)
 186       src_stride = unpack->RowLength;
 187    else
 188       src_stride = image->Width;
 189    src_stride *= intelImage->mt->region->cpp;
 190
 191    intel_miptree_get_image_offset(intelImage->mt, intelImage->base.Base.Level,
 192                                   intelImage->base.Base.Face,
 193                                   &dst_x, &dst_y);
 194
 195    if (!intelEmitCopyBlit(intel,
 196                           intelImage->mt->cpp,
 197                           src_stride, src_buffer,
 198                           src_offset, false,
 199                           intelImage->mt->region->pitch, dst_buffer, 0,
 200                           intelImage->mt->region->tiling,
 201                           0, 0, dst_x, dst_y, image->Width, image->Height,
 202                           GL_COPY)) {
 203       DBG("%s: blit failed\n", __FUNCTION__);
 204       return false;
 205    }
 206
 207    DBG("%s: success\n", __FUNCTION__);
 208    return true;
 209 }
 210
 211 static void
 212 intelTexImage(struct gl_context * ctx,
 213               GLuint dims,
 214               struct gl_texture_image *texImage,
 215               GLenum format, GLenum type, const void *pixels,
 216               const struct gl_pixelstore_attrib *unpack)
 217 {
 218    bool ok;
 219
 220    DBG("%s target %s level %d %dx%dx%d\n", __FUNCTION__,
 221        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 222        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 223
 224    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 225                                        0, 0, 0, /*x,y,z offsets*/
 226                                        texImage->Width,
 227                                        texImage->Height,
 228                                        texImage->Depth,
 229                                        format, type, pixels, unpack,
 230                                        true /*for_glTexImage*/);
 231    if (ok)
 232       return;
 233
 234    /* Attempt to use the blitter for PBO image uploads.
 235     */
 236    if (dims <= 2 &&
 237        try_pbo_upload(ctx, texImage, unpack, format, type, pixels)) {
 238       return;
 239    }
 240
 241    DBG("%s: upload image %dx%dx%d pixels %p\n",
 242        __FUNCTION__, texImage->Width, texImage->Height, texImage->Depth,
 243        pixels);
 244
 245    _mesa_store_teximage(ctx, dims, texImage,
 246                         format, type, pixels, unpack);
 247 }
 248
 249
 250 /**
 251  * Binds a region to a texture image, like it was uploaded by glTexImage2D().
 252  *
 253  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 254  */
 255 static void
 256 intel_set_texture_image_region(struct gl_context *ctx,
 257                                struct gl_texture_image *image,
 258                                struct intel_region *region,
 259                                GLenum target,
 260                                GLenum internalFormat,
 261                                gl_format format,
 262                                uint32_t offset,
 263                                GLuint width,
 264                                GLuint height,
 265                                GLuint tile_x,
 266                                GLuint tile_y)
 267 {
 268    struct intel_context *intel = intel_context(ctx);
 269    struct intel_texture_image *intel_image = intel_texture_image(image);
 270    struct gl_texture_object *texobj = image->TexObject;
 271    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 272    bool has_surface_tile_offset = false;
 273    uint32_t draw_x, draw_y;
 274
 275    _mesa_init_teximage_fields(&intel->ctx, image,
 276                               width, height, 1,
 277                               0, internalFormat, format);
 278
 279    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 280
 281    intel_image->mt = intel_miptree_create_layout(intel, target, image->TexFormat,
 282                                                  0, 0,
 283                                                  width, height, 1,
 284                                                  true, 0 /* num_samples */);
 285    if (intel_image->mt == NULL)
 286        return;
 287    intel_region_reference(&intel_image->mt->region, region);
 288    intel_image->mt->total_width = width;
 289    intel_image->mt->total_height = height;
 290    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 291    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 292
 293    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 294 #ifndef I915
 295    has_surface_tile_offset = brw_context(ctx)->has_surface_tile_offset;
 296 #endif
 297
 298    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 299     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 300     * trouble resolving back to destination image due to alignment issues.
 301     */
 302    if (!has_surface_tile_offset &&
 303        (draw_x != 0 || draw_y != 0)) {
 304       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 305       intel_miptree_release(&intel_image->mt);
 306       return;
 307    }
 308
 309    intel_texobj->needs_validate = true;
 310
 311    intel_image->mt->offset = offset;
 312    assert(region->pitch % region->cpp == 0);
 313    intel_image->base.RowStride = region->pitch / region->cpp;
 314
 315    /* Immediately validate the image to the object. */
 316    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 317 }
 318
 319 void
 320 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 321                    GLint texture_format,
 322                    __DRIdrawable *dPriv)
 323 {
 324    struct gl_framebuffer *fb = dPriv->driverPrivate;
 325    struct intel_context *intel = pDRICtx->driverPrivate;
 326    struct gl_context *ctx = &intel->ctx;
 327    struct intel_texture_object *intelObj;
 328    struct intel_renderbuffer *rb;
 329    struct gl_texture_object *texObj;
 330    struct gl_texture_image *texImage;
 331    int level = 0, internalFormat = 0;
 332    gl_format texFormat = MESA_FORMAT_NONE;
 333
 334    texObj = _mesa_get_current_tex_object(ctx, target);
 335    intelObj = intel_texture_object(texObj);
 336
 337    if (!intelObj)
 338       return;
 339
 340    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 341        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 342       intel_update_renderbuffers(pDRICtx, dPriv);
 343
 344    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 345    /* If the region isn't set, then intel_update_renderbuffers was unable
 346     * to get the buffers for the drawable.
 347     */
 348    if (!rb || !rb->mt)
 349       return;
 350
 351    if (rb->mt->cpp == 4) {
 352       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 353          internalFormat = GL_RGB;
 354          texFormat = MESA_FORMAT_XRGB8888;
 355       }
 356       else {
 357          internalFormat = GL_RGBA;
 358          texFormat = MESA_FORMAT_ARGB8888;
 359       }
 360    } else if (rb->mt->cpp == 2) {
 361       internalFormat = GL_RGB;
 362       texFormat = MESA_FORMAT_RGB565;
 363    }
 364
 365    _mesa_lock_texture(&intel->ctx, texObj);
 366    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 367    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
 368                                   internalFormat, texFormat, 0,
 369                                   rb->mt->region->width,
 370                                   rb->mt->region->height,
 371                                   0, 0);
 372    _mesa_unlock_texture(&intel->ctx, texObj);
 373 }
 374
 375 void
 376 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 377 {
 378    /* The old interface didn't have the format argument, so copy our
 379     * implementation's behavior at the time.
 380     */
 381    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 382 }
 383
 384 static void
 385 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 386                               struct gl_texture_object *texObj,
 387                               struct gl_texture_image *texImage,
 388                               GLeglImageOES image_handle)
 389 {
 390    struct intel_context *intel = intel_context(ctx);
 391    __DRIscreen *screen;
 392    __DRIimage *image;
 393
 394    screen = intel->intelScreen->driScrnPriv;
 395    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 396                                               screen->loaderPrivate);
 397    if (image == NULL)
 398       return;
 399
 400    /* Disallow depth/stencil textures: we don't have a way to pass the
 401     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 402     */
 403    if (image->has_depthstencil) {
 404       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 405       return;
 406    }
 407
 408    intel_set_texture_image_region(ctx, texImage, image->region,
 409                                   target, image->internal_format,
 410                                   image->format, image->offset,
 411                                   image->width,  image->height,
 412                                   image->tile_x, image->tile_y);
 413 }
 414
 415 void
 416 intelInitTextureImageFuncs(struct dd_function_table *functions)
 417 {
 418    functions->TexImage = intelTexImage;
 419    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 420 }