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_mipmap_tree.h"
  19 #include "intel_buffer_objects.h"
  20 #include "intel_batchbuffer.h"
  21 #include "intel_tex.h"
  22 #include "intel_blit.h"
  23 #include "intel_fbo.h"
  24
  25 #include "brw_context.h"
  26
  27 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  28
  29 /* Work back from the specified level of the image to the baselevel and create a
  30  * miptree of that size.
  31  */
  32 struct intel_mipmap_tree *
  33 intel_miptree_create_for_teximage(struct brw_context *brw,
  34                                   struct intel_texture_object *intelObj,
  35                                   struct intel_texture_image *intelImage,
  36                                   bool expect_accelerated_upload)
  37 {
  38    GLuint lastLevel;
  39    int width, height, depth;
  40    GLuint i;
  41
  42    intel_miptree_get_dimensions_for_image(&intelImage->base.Base,
  43                                           &width, &height, &depth);
  44
  45    DBG("%s\n", __FUNCTION__);
  46
  47    /* Figure out image dimensions at start level. */
  48    for (i = intelImage->base.Base.Level; i > 0; i--) {
  49       width <<= 1;
  50       if (height != 1)
  51          height <<= 1;
  52       if (depth != 1)
  53          depth <<= 1;
  54    }
  55
  56    /* Guess a reasonable value for lastLevel.  This is probably going
  57     * to be wrong fairly often and might mean that we have to look at
  58     * resizable buffers, or require that buffers implement lazy
  59     * pagetable arrangements.
  60     */
  61    if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
  62         intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
  63        intelImage->base.Base.Level == 0 &&
  64        !intelObj->base.GenerateMipmap) {
  65       lastLevel = 0;
  66    } else {
  67       lastLevel = _mesa_get_tex_max_num_levels(intelObj->base.Target,
  68                                                width, height, depth) - 1;
  69    }
  70
  71    return intel_miptree_create(brw,
  72                                intelObj->base.Target,
  73                                intelImage->base.Base.TexFormat,
  74                                0,
  75                                lastLevel,
  76                                width,
  77                                height,
  78                                depth,
  79                                expect_accelerated_upload,
  80                                intelImage->base.Base.NumSamples,
  81                                INTEL_MIPTREE_TILING_ANY);
  82 }
  83
  84 /* XXX: Do this for TexSubImage also:
  85  */
  86 static bool
  87 try_pbo_upload(struct gl_context *ctx,
  88                struct gl_texture_image *image,
  89                const struct gl_pixelstore_attrib *unpack,
  90                GLenum format, GLenum type, const void *pixels)
  91 {
  92    struct intel_texture_image *intelImage = intel_texture_image(image);
  93    struct brw_context *brw = brw_context(ctx);
  94    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
  95    GLuint src_offset;
  96    drm_intel_bo *src_buffer;
  97
  98    if (!_mesa_is_bufferobj(unpack->BufferObj))
  99       return false;
 100
 101    DBG("trying pbo upload\n");
 102
 103    if (ctx->_ImageTransferState || unpack->SkipPixels || unpack->SkipRows) {
 104       DBG("%s: image transfer\n", __FUNCTION__);
 105       return false;
 106    }
 107
 108    ctx->Driver.AllocTextureImageBuffer(ctx, image);
 109
 110    if (!intelImage->mt) {
 111       DBG("%s: no miptree\n", __FUNCTION__);
 112       return false;
 113    }
 114
 115    if (!_mesa_format_matches_format_and_type(intelImage->mt->format,
 116                                              format, type, false)) {
 117       DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
 118           __FUNCTION__, _mesa_get_format_name(intelImage->mt->format),
 119           format, type);
 120       return false;
 121    }
 122
 123    if (image->TexObject->Target == GL_TEXTURE_1D_ARRAY ||
 124        image->TexObject->Target == GL_TEXTURE_2D_ARRAY) {
 125       DBG("%s: no support for array textures\n", __FUNCTION__);
 126       return false;
 127    }
 128
 129    src_buffer = intel_bufferobj_buffer(brw, pbo, INTEL_READ);
 130    /* note: potential 64-bit ptr to 32-bit int cast */
 131    src_offset = (GLuint) (unsigned long) pixels;
 132
 133    int src_stride =
 134       _mesa_image_row_stride(unpack, image->Width, format, type);
 135
 136    struct intel_mipmap_tree *pbo_mt =
 137       intel_miptree_create_for_bo(brw,
 138                                   src_buffer,
 139                                   intelImage->mt->format,
 140                                   src_offset,
 141                                   image->Width, image->Height,
 142                                   src_stride, I915_TILING_NONE);
 143    if (!pbo_mt)
 144       return false;
 145
 146    if (!intel_miptree_blit(brw,
 147                            pbo_mt, 0, 0,
 148                            0, 0, false,
 149                            intelImage->mt, image->Level, image->Face,
 150                            0, 0, false,
 151                            image->Width, image->Height, GL_COPY)) {
 152       DBG("%s: blit failed\n", __FUNCTION__);
 153       intel_miptree_release(&pbo_mt);
 154       return false;
 155    }
 156
 157    intel_miptree_release(&pbo_mt);
 158
 159    DBG("%s: success\n", __FUNCTION__);
 160    return true;
 161 }
 162
 163 static void
 164 intelTexImage(struct gl_context * ctx,
 165               GLuint dims,
 166               struct gl_texture_image *texImage,
 167               GLenum format, GLenum type, const void *pixels,
 168               const struct gl_pixelstore_attrib *unpack)
 169 {
 170    bool ok;
 171
 172    DBG("%s target %s level %d %dx%dx%d\n", __FUNCTION__,
 173        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 174        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
 175
 176    ok = intel_texsubimage_tiled_memcpy(ctx, dims, texImage,
 177                                        0, 0, 0, /*x,y,z offsets*/
 178                                        texImage->Width,
 179                                        texImage->Height,
 180                                        texImage->Depth,
 181                                        format, type, pixels, unpack,
 182                                        true /*for_glTexImage*/);
 183    if (ok)
 184       return;
 185
 186    /* Attempt to use the blitter for PBO image uploads.
 187     */
 188    if (dims <= 2 &&
 189        try_pbo_upload(ctx, texImage, unpack, format, type, pixels)) {
 190       return;
 191    }
 192
 193    DBG("%s: upload image %dx%dx%d pixels %p\n",
 194        __FUNCTION__, texImage->Width, texImage->Height, texImage->Depth,
 195        pixels);
 196
 197    _mesa_store_teximage(ctx, dims, texImage,
 198                         format, type, pixels, unpack);
 199 }
 200
 201
 202 /**
 203  * Binds a region to a texture image, like it was uploaded by glTexImage2D().
 204  *
 205  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 206  */
 207 static void
 208 intel_set_texture_image_region(struct gl_context *ctx,
 209                                struct gl_texture_image *image,
 210                                struct intel_region *region,
 211                                GLenum target,
 212                                GLenum internalFormat,
 213                                gl_format format,
 214                                uint32_t offset,
 215                                GLuint width,
 216                                GLuint height,
 217                                GLuint tile_x,
 218                                GLuint tile_y)
 219 {
 220    struct brw_context *brw = brw_context(ctx);
 221    struct intel_texture_image *intel_image = intel_texture_image(image);
 222    struct gl_texture_object *texobj = image->TexObject;
 223    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 224    uint32_t draw_x, draw_y;
 225
 226    _mesa_init_teximage_fields(&brw->ctx, image,
 227                               width, height, 1,
 228                               0, internalFormat, format);
 229
 230    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 231
 232    intel_image->mt = intel_miptree_create_layout(brw, target, image->TexFormat,
 233                                                  0, 0,
 234                                                  width, height, 1,
 235                                                  true, 0 /* num_samples */);
 236    if (intel_image->mt == NULL)
 237        return;
 238    intel_region_reference(&intel_image->mt->region, region);
 239    intel_image->mt->total_width = width;
 240    intel_image->mt->total_height = height;
 241    intel_image->mt->level[0].slice[0].x_offset = tile_x;
 242    intel_image->mt->level[0].slice[0].y_offset = tile_y;
 243
 244    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
 245
 246    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
 247     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
 248     * trouble resolving back to destination image due to alignment issues.
 249     */
 250    if (!brw->has_surface_tile_offset &&
 251        (draw_x != 0 || draw_y != 0)) {
 252       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 253       intel_miptree_release(&intel_image->mt);
 254       return;
 255    }
 256
 257    intel_texobj->needs_validate = true;
 258
 259    intel_image->mt->offset = offset;
 260    assert(region->pitch % region->cpp == 0);
 261    intel_image->base.RowStride = region->pitch / region->cpp;
 262
 263    /* Immediately validate the image to the object. */
 264    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 265 }
 266
 267 void
 268 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 269                    GLint texture_format,
 270                    __DRIdrawable *dPriv)
 271 {
 272    struct gl_framebuffer *fb = dPriv->driverPrivate;
 273    struct brw_context *brw = pDRICtx->driverPrivate;
 274    struct gl_context *ctx = &brw->ctx;
 275    struct intel_texture_object *intelObj;
 276    struct intel_renderbuffer *rb;
 277    struct gl_texture_object *texObj;
 278    struct gl_texture_image *texImage;
 279    int level = 0, internalFormat = 0;
 280    gl_format texFormat = MESA_FORMAT_NONE;
 281
 282    texObj = _mesa_get_current_tex_object(ctx, target);
 283    intelObj = intel_texture_object(texObj);
 284
 285    if (!intelObj)
 286       return;
 287
 288    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 289        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 290       intel_update_renderbuffers(pDRICtx, dPriv);
 291
 292    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 293    /* If the region isn't set, then intel_update_renderbuffers was unable
 294     * to get the buffers for the drawable.
 295     */
 296    if (!rb || !rb->mt)
 297       return;
 298
 299    if (rb->mt->cpp == 4) {
 300       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 301          internalFormat = GL_RGB;
 302          texFormat = MESA_FORMAT_XRGB8888;
 303       }
 304       else {
 305          internalFormat = GL_RGBA;
 306          texFormat = MESA_FORMAT_ARGB8888;
 307       }
 308    } else if (rb->mt->cpp == 2) {
 309       internalFormat = GL_RGB;
 310       texFormat = MESA_FORMAT_RGB565;
 311    }
 312
 313    _mesa_lock_texture(&brw->ctx, texObj);
 314    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 315    intel_miptree_make_shareable(brw, rb->mt);
 316    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
 317                                   internalFormat, texFormat, 0,
 318                                   rb->mt->region->width,
 319                                   rb->mt->region->height,
 320                                   0, 0);
 321    _mesa_unlock_texture(&brw->ctx, texObj);
 322 }
 323
 324 void
 325 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 326 {
 327    /* The old interface didn't have the format argument, so copy our
 328     * implementation's behavior at the time.
 329     */
 330    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 331 }
 332
 333 static void
 334 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 335                               struct gl_texture_object *texObj,
 336                               struct gl_texture_image *texImage,
 337                               GLeglImageOES image_handle)
 338 {
 339    struct brw_context *brw = brw_context(ctx);
 340    __DRIscreen *screen;
 341    __DRIimage *image;
 342
 343    screen = brw->intelScreen->driScrnPriv;
 344    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 345                                               screen->loaderPrivate);
 346    if (image == NULL)
 347       return;
 348
 349    /**
 350     * Images originating via EGL_EXT_image_dma_buf_import can be used only
 351     * with GL_OES_EGL_image_external only.
 352     */
 353    if (image->dma_buf_imported && target != GL_TEXTURE_EXTERNAL_OES) {
 354       _mesa_error(ctx, GL_INVALID_OPERATION,
 355             "glEGLImageTargetTexture2DOES(dma buffers can be used with "
 356                "GL_OES_EGL_image_external only");
 357       return;
 358    }
 359
 360    if (target == GL_TEXTURE_EXTERNAL_OES && !image->dma_buf_imported) {
 361       _mesa_error(ctx, GL_INVALID_OPERATION,
 362             "glEGLImageTargetTexture2DOES(external target is enabled only "
 363                "for images created with EGL_EXT_image_dma_buf_import");
 364       return;
 365    }
 366
 367    /* Disallow depth/stencil textures: we don't have a way to pass the
 368     * separate stencil miptree of a GL_DEPTH_STENCIL texture through.
 369     */
 370    if (image->has_depthstencil) {
 371       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
 372       return;
 373    }
 374
 375    intel_set_texture_image_region(ctx, texImage, image->region,
 376                                   target, image->internal_format,
 377                                   image->format, image->offset,
 378                                   image->width,  image->height,
 379                                   image->tile_x, image->tile_y);
 380 }
 381
 382 void
 383 intelInitTextureImageFuncs(struct dd_function_table *functions)
 384 {
 385    functions->TexImage = intelTexImage;
 386    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 387 }