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