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 if (intelObj->base.Target == GL_TEXTURE_EXTERNAL_OES) {
  88          lastLevel = firstLevel;
  89       } else {
  90          lastLevel = firstLevel + _mesa_logbase2(MAX2(MAX2(width, height), depth));
  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 }
 104
 105 /* There are actually quite a few combinations this will work for,
 106  * more than what I've listed here.
 107  */
 108 static bool
 109 check_pbo_format(GLenum format, GLenum type,
 110                  gl_format mesa_format)
 111 {
 112    switch (mesa_format) {
 113    case MESA_FORMAT_ARGB8888:
 114       return (format == GL_BGRA && (type == GL_UNSIGNED_BYTE ||
 115                                     type == GL_UNSIGNED_INT_8_8_8_8_REV));
 116    case MESA_FORMAT_RGB565:
 117       return (format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5);
 118    case MESA_FORMAT_L8:
 119       return (format == GL_LUMINANCE && type == GL_UNSIGNED_BYTE);
 120    case MESA_FORMAT_YCBCR:
 121       return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE);
 122    default:
 123       return false;
 124    }
 125 }
 126
 127
 128 /* XXX: Do this for TexSubImage also:
 129  */
 130 static bool
 131 try_pbo_upload(struct gl_context *ctx,
 132                struct gl_texture_image *image,
 133                const struct gl_pixelstore_attrib *unpack,
 134                GLenum format, GLenum type,
 135                GLint width, GLint height, const void *pixels)
 136 {
 137    struct intel_texture_image *intelImage = intel_texture_image(image);
 138    struct intel_context *intel = intel_context(ctx);
 139    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 140    GLuint src_offset, src_stride;
 141    GLuint dst_x, dst_y, dst_stride;
 142    drm_intel_bo *dst_buffer, *src_buffer;
 143
 144    if (!_mesa_is_bufferobj(unpack->BufferObj))
 145       return false;
 146
 147    DBG("trying pbo upload\n");
 148
 149    if (intel->ctx._ImageTransferState ||
 150        unpack->SkipPixels || unpack->SkipRows) {
 151       DBG("%s: image transfer\n", __FUNCTION__);
 152       return false;
 153    }
 154
 155    if (!check_pbo_format(format, type, intelImage->base.Base.TexFormat)) {
 156       DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
 157           __FUNCTION__, _mesa_get_format_name(intelImage->base.Base.TexFormat),
 158           format, type);
 159       return false;
 160    }
 161
 162    ctx->Driver.AllocTextureImageBuffer(ctx, image, image->TexFormat,
 163                                        width, height, 1);
 164
 165    if (!intelImage->mt) {
 166       DBG("%s: no miptree\n", __FUNCTION__);
 167       return false;
 168    }
 169
 170    dst_buffer = intelImage->mt->region->bo;
 171    src_buffer = intel_bufferobj_source(intel, pbo, 64, &src_offset);
 172    /* note: potential 64-bit ptr to 32-bit int cast */
 173    src_offset += (GLuint) (unsigned long) pixels;
 174
 175    if (unpack->RowLength > 0)
 176       src_stride = unpack->RowLength;
 177    else
 178       src_stride = width;
 179
 180    intel_miptree_get_image_offset(intelImage->mt, intelImage->base.Base.Level,
 181                                   intelImage->base.Base.Face, 0,
 182                                   &dst_x, &dst_y);
 183
 184    dst_stride = intelImage->mt->region->pitch;
 185
 186    if (!intelEmitCopyBlit(intel,
 187                           intelImage->mt->cpp,
 188                           src_stride, src_buffer,
 189                           src_offset, false,
 190                           dst_stride, dst_buffer, 0,
 191                           intelImage->mt->region->tiling,
 192                           0, 0, dst_x, dst_y, width, height,
 193                           GL_COPY)) {
 194       DBG("%s: blit failed\n", __FUNCTION__);
 195       return false;
 196    }
 197
 198    DBG("%s: success\n", __FUNCTION__);
 199    return true;
 200 }
 201
 202 static void
 203 intelTexImage(struct gl_context * ctx,
 204               GLint dims,
 205               struct gl_texture_image *texImage,
 206               GLint internalFormat,
 207               GLint width, GLint height, GLint depth,
 208               GLenum format, GLenum type, const void *pixels,
 209               const struct gl_pixelstore_attrib *unpack,
 210               GLsizei imageSize)
 211 {
 212    DBG("%s target %s level %d %dx%dx%d\n", __FUNCTION__,
 213        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 214        texImage->Level, width, height, depth);
 215
 216    /* Attempt to use the blitter for PBO image uploads.
 217     */
 218    if (dims <= 2 &&
 219        try_pbo_upload(ctx, texImage, unpack, format, type,
 220                       width, height, pixels)) {
 221       return;
 222    }
 223
 224    DBG("%s: upload image %dx%dx%d pixels %p\n",
 225        __FUNCTION__, width, height, depth, pixels);
 226
 227    _mesa_store_teximage3d(ctx, texImage, internalFormat,
 228                           width, height, depth, 0,
 229                           format, type, pixels, unpack);
 230 }
 231
 232
 233 static void
 234 intelTexImage3D(struct gl_context * ctx,
 235                 struct gl_texture_image *texImage,
 236                 GLint internalFormat,
 237                 GLint width, GLint height, GLint depth,
 238                 GLint border,
 239                 GLenum format, GLenum type, const void *pixels,
 240                 const struct gl_pixelstore_attrib *unpack)
 241 {
 242    intelTexImage(ctx, 3, texImage,
 243                  internalFormat, width, height, depth,
 244                  format, type, pixels, unpack, 0);
 245 }
 246
 247
 248 static void
 249 intelTexImage2D(struct gl_context * ctx,
 250                 struct gl_texture_image *texImage,
 251                 GLint internalFormat,
 252                 GLint width, GLint height, GLint border,
 253                 GLenum format, GLenum type, const void *pixels,
 254                 const struct gl_pixelstore_attrib *unpack)
 255 {
 256    intelTexImage(ctx, 2, texImage,
 257                  internalFormat, width, height, 1,
 258                  format, type, pixels, unpack, 0);
 259 }
 260
 261
 262 static void
 263 intelTexImage1D(struct gl_context * ctx,
 264                 struct gl_texture_image *texImage,
 265                 GLint internalFormat,
 266                 GLint width, GLint border,
 267                 GLenum format, GLenum type, const void *pixels,
 268                 const struct gl_pixelstore_attrib *unpack)
 269 {
 270    intelTexImage(ctx, 1, texImage,
 271                  internalFormat, width, 1, 1,
 272                  format, type, pixels, unpack, 0);
 273 }
 274
 275
 276 /**
 277  * Binds a region to a texture image, like it was uploaded by glTexImage2D().
 278  *
 279  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 280  */
 281 static void
 282 intel_set_texture_image_region(struct gl_context *ctx,
 283                                struct gl_texture_image *image,
 284                                struct intel_region *region,
 285                                GLenum target,
 286                                GLenum internalFormat,
 287                                gl_format format)
 288 {
 289    struct intel_context *intel = intel_context(ctx);
 290    struct intel_texture_image *intel_image = intel_texture_image(image);
 291    struct gl_texture_object *texobj = image->TexObject;
 292    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 293
 294    _mesa_init_teximage_fields(&intel->ctx, image,
 295                               region->width, region->height, 1,
 296                               0, internalFormat, format);
 297
 298    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 299
 300    intel_image->mt = intel_miptree_create_for_region(intel, target,
 301                                                      image->TexFormat,
 302                                                      region);
 303    if (intel_image->mt == NULL)
 304        return;
 305
 306    intel_image->base.RowStride = region->pitch;
 307
 308    /* Immediately validate the image to the object. */
 309    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 310 }
 311
 312 void
 313 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 314                    GLint texture_format,
 315                    __DRIdrawable *dPriv)
 316 {
 317    struct gl_framebuffer *fb = dPriv->driverPrivate;
 318    struct intel_context *intel = pDRICtx->driverPrivate;
 319    struct gl_context *ctx = &intel->ctx;
 320    struct intel_texture_object *intelObj;
 321    struct intel_renderbuffer *rb;
 322    struct gl_texture_object *texObj;
 323    struct gl_texture_image *texImage;
 324    int level = 0, internalFormat;
 325    gl_format texFormat;
 326
 327    texObj = _mesa_get_current_tex_object(ctx, target);
 328    intelObj = intel_texture_object(texObj);
 329
 330    if (!intelObj)
 331       return;
 332
 333    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 334        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 335       intel_update_renderbuffers(pDRICtx, dPriv);
 336
 337    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 338    /* If the region isn't set, then intel_update_renderbuffers was unable
 339     * to get the buffers for the drawable.
 340     */
 341    if (!rb || !rb->mt)
 342       return;
 343
 344    if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 345       internalFormat = GL_RGB;
 346       texFormat = MESA_FORMAT_XRGB8888;
 347    }
 348    else {
 349       internalFormat = GL_RGBA;
 350       texFormat = MESA_FORMAT_ARGB8888;
 351    }
 352
 353    _mesa_lock_texture(&intel->ctx, texObj);
 354    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 355    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
 356                                   internalFormat, texFormat);
 357    _mesa_unlock_texture(&intel->ctx, texObj);
 358 }
 359
 360 void
 361 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 362 {
 363    /* The old interface didn't have the format argument, so copy our
 364     * implementation's behavior at the time.
 365     */
 366    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 367 }
 368
 369 #if FEATURE_OES_EGL_image
 370 static void
 371 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
 372                               struct gl_texture_object *texObj,
 373                               struct gl_texture_image *texImage,
 374                               GLeglImageOES image_handle)
 375 {
 376    struct intel_context *intel = intel_context(ctx);
 377    __DRIscreen *screen;
 378    __DRIimage *image;
 379
 380    screen = intel->intelScreen->driScrnPriv;
 381    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 382                                               screen->loaderPrivate);
 383    if (image == NULL)
 384       return;
 385
 386    intel_set_texture_image_region(ctx, texImage, image->region,
 387                                   target, image->internal_format, image->format);
 388 }
 389 #endif
 390
 391 void
 392 intelInitTextureImageFuncs(struct dd_function_table *functions)
 393 {
 394    functions->TexImage1D = intelTexImage1D;
 395    functions->TexImage2D = intelTexImage2D;
 396    functions->TexImage3D = intelTexImage3D;
 397
 398 #if FEATURE_OES_EGL_image
 399    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 400 #endif
 401 }