src/mesa/drivers/dri/i965/intel_tex_image.c

   1
   2 #include "main/glheader.h"
   3 #include "main/macros.h"
   4 #include "main/mtypes.h"
   5 #include "main/enums.h"
   6 #include "main/bufferobj.h"
   7 #include "main/context.h"
   8 #include "main/formats.h"
   9 #include "main/image.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
  26 #ifndef I915
  27 #include "brw_context.h"
  28 #endif
  29
  30 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  31
  32 /* Work back from the specified level of the image to the baselevel and create a
  33  * miptree of that size.
  34  */
  35 struct intel_mipmap_tree *
  36 intel_miptree_create_for_teximage(struct intel_context *intel,
  37                                   struct intel_texture_object *intelObj,
  38                                   struct intel_texture_image *intelImage,
  39                                   bool expect_accelerated_upload)
  40 {
  41    GLuint firstLevel;
  42    GLuint lastLevel;
  43    int width, height, depth;
  44    GLuint i;
  45
  46    intel_miptree_get_dimensions_for_image(&intelImage->base.Base,
  47                                           &width, &height, &depth);
  48
  49    DBG("%s\n", __FUNCTION__);
  50
  51    if (intelImage->base.Base.Level > intelObj->base.BaseLevel &&
  52        (width == 1 ||
  53         (intelObj->base.Target != GL_TEXTURE_1D && height == 1) ||
  54         (intelObj->base.Target == GL_TEXTURE_3D && depth == 1))) {
  55       /* For this combination, we're at some lower mipmap level and
  56        * some important dimension is 1.  We can't extrapolate up to a
  57        * likely base level width/height/depth for a full mipmap stack
  58        * from this info, so just allocate this one level.
  59        */
  60       firstLevel = intelImage->base.Base.Level;
  61       lastLevel = intelImage->base.Base.Level;
  62    } else {
  63       /* If this image disrespects BaseLevel, allocate from level zero.
  64        * Usually BaseLevel == 0, so it's unlikely to happen.
  65        */
  66       if (intelImage->base.Base.Level < intelObj->base.BaseLevel)
  67          firstLevel = 0;
  68       else
  69          firstLevel = intelObj->base.BaseLevel;
  70
  71       /* Figure out image dimensions at start level. */
  72       for (i = intelImage->base.Base.Level; i > firstLevel; i--) {
  73          width <<= 1;
  74          if (height != 1)
  75             height <<= 1;
  76          if (depth != 1)
  77             depth <<= 1;
  78       }
  79
  80       /* Guess a reasonable value for lastLevel.  This is probably going
  81        * to be wrong fairly often and might mean that we have to look at
  82        * resizable buffers, or require that buffers implement lazy
  83        * pagetable arrangements.
  84        */
  85       if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
  86            intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
  87           intelImage->base.Base.Level == firstLevel &&
  88           firstLevel == 0) {
  89          lastLevel = firstLevel;
  90       } else {
  91          lastLevel = (firstLevel +
  92                       _mesa_get_tex_max_num_levels(intelObj->base.Target,
  93                                                    width, height, depth) - 1);
  94       }
  95    }
  96
  97    return intel_miptree_create(intel,
  98                                intelObj->base.Target,
  99                                intelImage->base.Base.TexFormat,
 100                                firstLevel,
 101                                lastLevel,
 102                                width,
 103                                height,
 104                                depth,
 105                                expect_accelerated_upload,
 106                                intelImage->base.Base.NumSamples,
 107                                INTEL_MIPTREE_TILING_ANY);
 108 }
 109
 110 /* XXX: Do this for TexSubImage also:
 111  */
 112 static bool
 113 try_pbo_upload(struct gl_context *ctx,
 114                struct gl_texture_image *image,
 115                const struct gl_pixelstore_attrib *unpack,
 116                GLenum format, GLenum type, const void *pixels)
 117 {
 118    struct intel_texture_image *intelImage = intel_texture_image(image);
 119    struct intel_context *intel = intel_context(ctx);
 120    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 121    GLuint src_offset;
 122    drm_intel_bo *src_buffer;
 123
 124    if (!_mesa_is_bufferobj(unpack->BufferObj))
 125       return false;
 126
 127    DBG("trying pbo upload\n");
 128
 129    if (intel->ctx._ImageTransferState ||
 130        unpack->SkipPixels || unpack->SkipRows) {
 131       DBG("%s: image transfer\n", __FUNCTION__);
 132       return false;
 133    }
 134
 135    ctx->Driver.AllocTextureImageBuffer(ctx, image);
 136
 137    if (!intelImage->mt) {
 138       DBG("%s: no miptree\n", __FUNCTION__);
 139       return false;
 140    }
 141
 142    if (!_mesa_format_matches_format_and_type(intelImage->mt->format,
 143                                              format, type, false)) {
 144       DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
 145           __FUNCTION__, _mesa_get_format_name(intelImage->mt->format),
 146           format, type);
 147       return false;
 148    }
 149
 150    if (image->TexObject->Target == GL_TEXTURE_1D_ARRAY ||
 151        image->TexObject->Target == GL_TEXTURE_2D_ARRAY) {
 152       DBG("%s: no support for array textures\n", __FUNCTION__);
 153       return false;
 154    }
 155
 156    src_buffer = intel_bufferobj_source(intel, pbo, 64, &src_offset);
 157    /* note: potential 64-bit ptr to 32-bit int cast */
 158    src_offset += (GLuint) (unsigned long) pixels;
 159
 160    int src_stride =
 161       _mesa_image_row_stride(unpack, image->Width, format, type);
 162
 163    struct intel_mipmap_tree *pbo_mt =
 164       intel_miptree_create_for_bo(intel,
 165                                   src_buffer,
 166                                   intelImage->mt->format,
 167                                   src_offset,
 168                                   image->Width, image->Height,
 169                                   src_stride, I915_TILING_NONE);
 170    if (!pbo_mt)
 171       return false;
 172
 173    if (!intel_miptree_blit(intel,
 174                            pbo_mt, 0, 0,
 175                            0, 0, false,
 176                            intelImage->mt, image->Level, image->Face,
 177                            0, 0, false,
 178                            image->Width, image->Height, GL_COPY)) {
 179       DBG("%s: blit failed\n", __FUNCTION__);
 180       return false;
 181    }
 182
 183    intel_miptree_release(&pbo_mt);
 184
 185    DBG("%s: success\n", __FUNCTION__);
 186    return true;
 187 }
 188
 189 static void
 190 intelTexImage(struct gl_context * ctx,
 191               GLuint dims,
 192               struct gl_texture_image *texImage,
 193               GLenum format, GLenum type, const void *pixels,
 194               const struct gl_pixelstore_attrib *unpack)
 195 {
 196    bool ok;
 197
 198    DBG("%s target %s level %d %dx%dx%d\n", __FUNCTION__,
 199        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 200        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 201
 202    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 203                                        0, 0, 0, /*x,y,z offsets*/
 204                                        texImage->Width,
 205                                        texImage->Height,
 206                                        texImage->Depth,
 207                                        format, type, pixels, unpack,
 208                                        true /*for_glTexImage*/);
 209    if (ok)
 210       return;
 211
 212    /* Attempt to use the blitter for PBO image uploads.
 213     */
 214    if (dims <= 2 &&
 215        try_pbo_upload(ctx, texImage, unpack, format, type, pixels)) {
 216       return;
 217    }
 218
 219    DBG("%s: upload image %dx%dx%d pixels %p\n",
 220        __FUNCTION__, texImage->Width, texImage->Height, texImage->Depth,
 221        pixels);
 222
 223    _mesa_store_teximage(ctx, dims, texImage,
 224                         format, type, pixels, unpack);
 225 }
 226
 227
 228 /**
 229  * Binds a region to a texture image, like it was uploaded by glTexImage2D().
 230  *
 231  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 232  */
 233 static void
 234 intel_set_texture_image_region(struct gl_context *ctx,
 235                                struct gl_texture_image *image,
 236                                struct intel_region *region,
 237                                GLenum target,
 238                                GLenum internalFormat,
 239                                gl_format format,
 240                                uint32_t offset,
 241                                GLuint width,
 242                                GLuint height,
 243                                GLuint tile_x,
 244                                GLuint tile_y)
 245 {
 246    struct intel_context *intel = intel_context(ctx);
 247    struct intel_texture_image *intel_image = intel_texture_image(image);
 248    struct gl_texture_object *texobj = image->TexObject;
 249    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 250    bool has_surface_tile_offset = false;
 251    uint32_t draw_x, draw_y;
 252
 253    _mesa_init_teximage_fields(&intel->ctx, image,
 254                               width, height, 1,
 255                               0, internalFormat, format);
 256
 257    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 258
 259    intel_image->mt = intel_miptree_create_layout(intel, target, image->TexFormat,
 260                                                  0, 0,
 261                                                  width, height, 1,
 262                                                  true, 0 /* num_samples */);
 263    if (intel_image->mt == NULL)
 264        return;
 265    intel_region_reference(&intel_image->mt->region, region);
 266    intel_image->mt->total_width = width;
 267    intel_image->mt->total_height = height;
 268    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 269    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 270
 271    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 272 #ifndef I915
 273    has_surface_tile_offset = brw_context(ctx)->has_surface_tile_offset;
 274 #endif
 275
 276    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 277     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 278     * trouble resolving back to destination image due to alignment issues.
 279     */
 280    if (!has_surface_tile_offset &&
 281        (draw_x != 0 || draw_y != 0)) {
 282       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 283       intel_miptree_release(&intel_image->mt);
 284       return;
 285    }
 286
 287    intel_texobj->needs_validate = true;
 288
 289    intel_image->mt->offset = offset;
 290    assert(region->pitch % region->cpp == 0);
 291    intel_image->base.RowStride = region->pitch / region->cpp;
 292
 293    /* Immediately validate the image to the object. */
 294    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 295 }
 296
 297 void
 298 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 299                    GLint texture_format,
 300                    __DRIdrawable *dPriv)
 301 {
 302    struct gl_framebuffer *fb = dPriv->driverPrivate;
 303    struct intel_context *intel = pDRICtx->driverPrivate;
 304    struct gl_context *ctx = &intel->ctx;
 305    struct intel_texture_object *intelObj;
 306    struct intel_renderbuffer *rb;
 307    struct gl_texture_object *texObj;
 308    struct gl_texture_image *texImage;
 309    int level = 0, internalFormat = 0;
 310    gl_format texFormat = MESA_FORMAT_NONE;
 311
 312    texObj = _mesa_get_current_tex_object(ctx, target);
 313    intelObj = intel_texture_object(texObj);
 314
 315    if (!intelObj)
 316       return;
 317
 318    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 319        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 320       intel_update_renderbuffers(pDRICtx, dPriv);
 321
 322    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 323    /* If the region isn't set, then intel_update_renderbuffers was unable
 324     * to get the buffers for the drawable.
 325     */
 326    if (!rb || !rb->mt)
 327       return;
 328
 329    if (rb->mt->cpp == 4) {
 330       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 331          internalFormat = GL_RGB;
 332          texFormat = MESA_FORMAT_XRGB8888;
 333       }
 334       else {
 335          internalFormat = GL_RGBA;
 336          texFormat = MESA_FORMAT_ARGB8888;
 337       }
 338    } else if (rb->mt->cpp == 2) {
 339       internalFormat = GL_RGB;
 340       texFormat = MESA_FORMAT_RGB565;
 341    }
 342
 343    _mesa_lock_texture(&intel->ctx, texObj);
 344    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 345    intel_miptree_make_shareable(intel, rb->mt);
 346    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
 347                                   internalFormat, texFormat, 0,
 348                                   rb->mt->region->width,
 349                                   rb->mt->region->height,
 350                                   0, 0);
 351    _mesa_unlock_texture(&intel->ctx, texObj);
 352 }
 353
 354 void
 355 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 356 {
 357    /* The old interface didn't have the format argument, so copy our
 358     * implementation's behavior at the time.
 359     */
 360    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 361 }
 362
 363 static void
 364 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 365                               struct gl_texture_object *texObj,
 366                               struct gl_texture_image *texImage,
 367                               GLeglImageOES image_handle)
 368 {
 369    struct intel_context *intel = intel_context(ctx);
 370    __DRIscreen *screen;
 371    __DRIimage *image;
 372
 373    screen = intel->intelScreen->driScrnPriv;
 374    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 375                                               screen->loaderPrivate);
 376    if (image == NULL)
 377       return;
 378
 379    /* Disallow depth/stencil textures: we don't have a way to pass the
 380     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 381     */
 382    if (image->has_depthstencil) {
 383       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 384       return;
 385    }
 386
 387    intel_set_texture_image_region(ctx, texImage, image->region,
 388                                   target, image->internal_format,
 389                                   image->format, image->offset,
 390                                   image->width,  image->height,
 391                                   image->tile_x, image->tile_y);
 392 }
 393
 394 void
 395 intelInitTextureImageFuncs(struct dd_function_table *functions)
 396 {
 397    functions->TexImage = intelTexImage;
 398    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 399 }