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                                0 /* num_samples */,
 104                                false /* msaa_is_interleaved */);
 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,
 137                GLint width, GLint height, const void *pixels)
 138 {
 139    struct intel_texture_image *intelImage = intel_texture_image(image);
 140    struct intel_context *intel = intel_context(ctx);
 141    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
 142    GLuint src_offset, src_stride;
 143    GLuint dst_x, dst_y, dst_stride;
 144    drm_intel_bo *dst_buffer, *src_buffer;
 145
 146    if (!_mesa_is_bufferobj(unpack->BufferObj))
 147       return false;
 148
 149    DBG("trying pbo upload\n");
 150
 151    if (intel->ctx._ImageTransferState ||
 152        unpack->SkipPixels || unpack->SkipRows) {
 153       DBG("%s: image transfer\n", __FUNCTION__);
 154       return false;
 155    }
 156
 157    if (!check_pbo_format(format, type, intelImage->base.Base.TexFormat)) {
 158       DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
 159           __FUNCTION__, _mesa_get_format_name(intelImage->base.Base.TexFormat),
 160           format, type);
 161       return false;
 162    }
 163
 164    ctx->Driver.AllocTextureImageBuffer(ctx, image, image->TexFormat,
 165                                        width, height, 1);
 166
 167    if (!intelImage->mt) {
 168       DBG("%s: no miptree\n", __FUNCTION__);
 169       return false;
 170    }
 171
 172    dst_buffer = intelImage->mt->region->bo;
 173    src_buffer = intel_bufferobj_source(intel, pbo, 64, &src_offset);
 174    /* note: potential 64-bit ptr to 32-bit int cast */
 175    src_offset += (GLuint) (unsigned long) pixels;
 176
 177    if (unpack->RowLength > 0)
 178       src_stride = unpack->RowLength;
 179    else
 180       src_stride = width;
 181
 182    intel_miptree_get_image_offset(intelImage->mt, intelImage->base.Base.Level,
 183                                   intelImage->base.Base.Face, 0,
 184                                   &dst_x, &dst_y);
 185
 186    dst_stride = intelImage->mt->region->pitch;
 187
 188    if (!intelEmitCopyBlit(intel,
 189                           intelImage->mt->cpp,
 190                           src_stride, src_buffer,
 191                           src_offset, false,
 192                           dst_stride, dst_buffer, 0,
 193                           intelImage->mt->region->tiling,
 194                           0, 0, dst_x, dst_y, width, height,
 195                           GL_COPY)) {
 196       DBG("%s: blit failed\n", __FUNCTION__);
 197       return false;
 198    }
 199
 200    DBG("%s: success\n", __FUNCTION__);
 201    return true;
 202 }
 203
 204 static void
 205 intelTexImage(struct gl_context * ctx,
 206               GLuint dims,
 207               struct gl_texture_image *texImage,
 208               GLint internalFormat,
 209               GLint width, GLint height, GLint depth, GLint border,
 210               GLenum format, GLenum type, const void *pixels,
 211               const struct gl_pixelstore_attrib *unpack)
 212 {
 213    DBG("%s target %s level %d %dx%dx%d\n", __FUNCTION__,
 214        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
 215        texImage->Level, width, height, depth);
 216
 217    /* Attempt to use the blitter for PBO image uploads.
 218     */
 219    if (dims <= 2 &&
 220        try_pbo_upload(ctx, texImage, unpack, format, type,
 221                       width, height, pixels)) {
 222       return;
 223    }
 224
 225    DBG("%s: upload image %dx%dx%d pixels %p\n",
 226        __FUNCTION__, width, height, depth, pixels);
 227
 228    _mesa_store_teximage(ctx, dims, texImage, internalFormat,
 229                         width, height, depth, 0,
 230                         format, type, pixels, unpack);
 231 }
 232
 233
 234 /**
 235  * Binds a region to a texture image, like it was uploaded by glTexImage2D().
 236  *
 237  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
 238  */
 239 static void
 240 intel_set_texture_image_region(struct gl_context *ctx,
 241                                struct gl_texture_image *image,
 242                                struct intel_region *region,
 243                                GLenum target,
 244                                GLenum internalFormat,
 245                                gl_format format)
 246 {
 247    struct intel_context *intel = intel_context(ctx);
 248    struct intel_texture_image *intel_image = intel_texture_image(image);
 249    struct gl_texture_object *texobj = image->TexObject;
 250    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
 251
 252    _mesa_init_teximage_fields(&intel->ctx, image,
 253                               region->width, region->height, 1,
 254                               0, internalFormat, format);
 255
 256    ctx->Driver.FreeTextureImageBuffer(ctx, image);
 257
 258    intel_image->mt = intel_miptree_create_for_region(intel, target,
 259                                                      image->TexFormat,
 260                                                      region);
 261    if (intel_image->mt == NULL)
 262        return;
 263
 264    intel_image->base.RowStride = region->pitch;
 265
 266    /* Immediately validate the image to the object. */
 267    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
 268 }
 269
 270 void
 271 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
 272                    GLint texture_format,
 273                    __DRIdrawable *dPriv)
 274 {
 275    struct gl_framebuffer *fb = dPriv->driverPrivate;
 276    struct intel_context *intel = pDRICtx->driverPrivate;
 277    struct gl_context *ctx = &intel->ctx;
 278    struct intel_texture_object *intelObj;
 279    struct intel_renderbuffer *rb;
 280    struct gl_texture_object *texObj;
 281    struct gl_texture_image *texImage;
 282    int level = 0, internalFormat = 0;
 283    gl_format texFormat = MESA_FORMAT_NONE;
 284
 285    texObj = _mesa_get_current_tex_object(ctx, target);
 286    intelObj = intel_texture_object(texObj);
 287
 288    if (!intelObj)
 289       return;
 290
 291    if (dPriv->lastStamp != dPriv->dri2.stamp ||
 292        !pDRICtx->driScreenPriv->dri2.useInvalidate)
 293       intel_update_renderbuffers(pDRICtx, dPriv);
 294
 295    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
 296    /* If the region isn't set, then intel_update_renderbuffers was unable
 297     * to get the buffers for the drawable.
 298     */
 299    if (!rb || !rb->mt)
 300       return;
 301
 302    if (rb->mt->cpp == 4) {
 303       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
 304          internalFormat = GL_RGB;
 305          texFormat = MESA_FORMAT_XRGB8888;
 306       }
 307       else {
 308          internalFormat = GL_RGBA;
 309          texFormat = MESA_FORMAT_ARGB8888;
 310       }
 311    } else if (rb->mt->cpp == 2) {
 312       internalFormat = GL_RGB;
 313       texFormat = MESA_FORMAT_RGB565;
 314    }
 315
 316    _mesa_lock_texture(&intel->ctx, texObj);
 317    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
 318    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
 319                                   internalFormat, texFormat);
 320    _mesa_unlock_texture(&intel->ctx, texObj);
 321 }
 322
 323 void
 324 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
 325 {
 326    /* The old interface didn't have the format argument, so copy our
 327     * implementation's behavior at the time.
 328     */
 329    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
 330 }
 331
 332 #if FEATURE_OES_EGL_image
 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 intel_context *intel = intel_context(ctx);
 340    __DRIscreen *screen;
 341    __DRIimage *image;
 342
 343    screen = intel->intelScreen->driScrnPriv;
 344    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
 345                                               screen->loaderPrivate);
 346    if (image == NULL)
 347       return;
 348
 349    intel_set_texture_image_region(ctx, texImage, image->region,
 350                                   target, image->internal_format, image->format);
 351 }
 352 #endif
 353
 354 void
 355 intelInitTextureImageFuncs(struct dd_function_table *functions)
 356 {
 357    functions->TexImage = intelTexImage;
 358
 359 #if FEATURE_OES_EGL_image
 360    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
 361 #endif
 362 }