Home | History | Annotate | Download | only in i915
      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 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
     27 
     28 /* Work back from the specified level of the image to the baselevel and create a
     29  * miptree of that size.
     30  */
     31 struct intel_mipmap_tree *
     32 intel_miptree_create_for_teximage(struct intel_context *intel,
     33 				  struct intel_texture_object *intelObj,
     34 				  struct intel_texture_image *intelImage,
     35 				  bool expect_accelerated_upload)
     36 {
     37    GLuint firstLevel;
     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", __func__);
     46 
     47    if (intelImage->base.Base.Level > intelObj->base.BaseLevel &&
     48        (width == 1 ||
     49         (intelObj->base.Target != GL_TEXTURE_1D && height == 1) ||
     50         (intelObj->base.Target == GL_TEXTURE_3D && depth == 1))) {
     51       /* For this combination, we're at some lower mipmap level and
     52        * some important dimension is 1.  We can't extrapolate up to a
     53        * likely base level width/height/depth for a full mipmap stack
     54        * from this info, so just allocate this one level.
     55        */
     56       firstLevel = intelImage->base.Base.Level;
     57       lastLevel = intelImage->base.Base.Level;
     58    } else {
     59       /* If this image disrespects BaseLevel, allocate from level zero.
     60        * Usually BaseLevel == 0, so it's unlikely to happen.
     61        */
     62       if (intelImage->base.Base.Level < intelObj->base.BaseLevel)
     63 	 firstLevel = 0;
     64       else
     65 	 firstLevel = intelObj->base.BaseLevel;
     66 
     67       /* Figure out image dimensions at start level. */
     68       for (i = intelImage->base.Base.Level; i > firstLevel; i--) {
     69 	 width <<= 1;
     70 	 if (height != 1)
     71 	    height <<= 1;
     72 	 if (depth != 1)
     73 	    depth <<= 1;
     74       }
     75 
     76       /* Guess a reasonable value for lastLevel.  This is probably going
     77        * to be wrong fairly often and might mean that we have to look at
     78        * resizable buffers, or require that buffers implement lazy
     79        * pagetable arrangements.
     80        */
     81       if ((intelObj->base.Sampler.MinFilter == GL_NEAREST ||
     82 	   intelObj->base.Sampler.MinFilter == GL_LINEAR) &&
     83 	  intelImage->base.Base.Level == firstLevel) {
     84 	 lastLevel = firstLevel;
     85       } else {
     86 	 lastLevel = (firstLevel +
     87                       _mesa_get_tex_max_num_levels(intelObj->base.Target,
     88                                                    width, height, depth) - 1);
     89       }
     90    }
     91 
     92    return intel_miptree_create(intel,
     93 			       intelObj->base.Target,
     94 			       intelImage->base.Base.TexFormat,
     95 			       firstLevel,
     96 			       lastLevel,
     97 			       width,
     98 			       height,
     99 			       depth,
    100 			       expect_accelerated_upload,
    101                                INTEL_MIPTREE_TILING_ANY);
    102 }
    103 
    104 /* XXX: Do this for TexSubImage also:
    105  */
    106 static bool
    107 try_pbo_upload(struct gl_context *ctx,
    108                struct gl_texture_image *image,
    109                const struct gl_pixelstore_attrib *unpack,
    110 	       GLenum format, GLenum type, const void *pixels)
    111 {
    112    struct intel_texture_image *intelImage = intel_texture_image(image);
    113    struct intel_context *intel = intel_context(ctx);
    114    struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
    115    GLuint src_offset;
    116    drm_intel_bo *src_buffer;
    117 
    118    if (!_mesa_is_bufferobj(unpack->BufferObj))
    119       return false;
    120 
    121    DBG("trying pbo upload\n");
    122 
    123    if (intel->ctx._ImageTransferState ||
    124        unpack->SkipPixels || unpack->SkipRows) {
    125       DBG("%s: image transfer\n", __func__);
    126       return false;
    127    }
    128 
    129    ctx->Driver.AllocTextureImageBuffer(ctx, image);
    130 
    131    if (!intelImage->mt) {
    132       DBG("%s: no miptree\n", __func__);
    133       return false;
    134    }
    135 
    136    if (!_mesa_format_matches_format_and_type(intelImage->mt->format,
    137                                              format, type, false, NULL)) {
    138       DBG("%s: format mismatch (upload to %s with format 0x%x, type 0x%x)\n",
    139 	  __func__, _mesa_get_format_name(intelImage->mt->format),
    140 	  format, type);
    141       return false;
    142    }
    143 
    144    if (image->TexObject->Target == GL_TEXTURE_1D_ARRAY ||
    145        image->TexObject->Target == GL_TEXTURE_2D_ARRAY) {
    146       DBG("%s: no support for array textures\n", __func__);
    147       return false;
    148    }
    149 
    150    src_buffer = intel_bufferobj_source(intel, pbo, 64, &src_offset);
    151    /* note: potential 64-bit ptr to 32-bit int cast */
    152    src_offset += (GLuint) (unsigned long) pixels;
    153 
    154    int src_stride =
    155       _mesa_image_row_stride(unpack, image->Width, format, type);
    156 
    157    struct intel_mipmap_tree *pbo_mt =
    158       intel_miptree_create_for_bo(intel,
    159                                   src_buffer,
    160                                   intelImage->mt->format,
    161                                   src_offset,
    162                                   image->Width, image->Height,
    163                                   src_stride, I915_TILING_NONE);
    164    if (!pbo_mt)
    165       return false;
    166 
    167    if (!intel_miptree_blit(intel,
    168                            pbo_mt, 0, 0,
    169                            0, 0, false,
    170                            intelImage->mt, image->Level, image->Face,
    171                            0, 0, false,
    172                            image->Width, image->Height, GL_COPY)) {
    173       DBG("%s: blit failed\n", __func__);
    174       intel_miptree_release(&pbo_mt);
    175       return false;
    176    }
    177 
    178    intel_miptree_release(&pbo_mt);
    179 
    180    DBG("%s: success\n", __func__);
    181    return true;
    182 }
    183 
    184 static void
    185 intelTexImage(struct gl_context * ctx,
    186               GLuint dims,
    187               struct gl_texture_image *texImage,
    188               GLenum format, GLenum type, const void *pixels,
    189               const struct gl_pixelstore_attrib *unpack)
    190 {
    191    DBG("%s target %s level %d %dx%dx%d\n", __func__,
    192        _mesa_enum_to_string(texImage->TexObject->Target),
    193        texImage->Level, texImage->Width, texImage->Height, texImage->Depth);
    194 
    195    /* Attempt to use the blitter for PBO image uploads.
    196     */
    197    if (dims <= 2 &&
    198        try_pbo_upload(ctx, texImage, unpack, format, type, pixels)) {
    199       return;
    200    }
    201 
    202    DBG("%s: upload image %dx%dx%d pixels %p\n",
    203        __func__, texImage->Width, texImage->Height, texImage->Depth,
    204        pixels);
    205 
    206    _mesa_store_teximage(ctx, dims, texImage,
    207                         format, type, pixels, unpack);
    208 }
    209 
    210 
    211 /**
    212  * Binds a region to a texture image, like it was uploaded by glTexImage2D().
    213  *
    214  * Used for GLX_EXT_texture_from_pixmap and EGL image extensions,
    215  */
    216 static void
    217 intel_set_texture_image_region(struct gl_context *ctx,
    218 			       struct gl_texture_image *image,
    219 			       struct intel_region *region,
    220 			       GLenum target,
    221 			       GLenum internalFormat,
    222 			       mesa_format format,
    223                                uint32_t offset,
    224                                GLuint width,
    225                                GLuint height,
    226                                GLuint tile_x,
    227                                GLuint tile_y)
    228 {
    229    struct intel_context *intel = intel_context(ctx);
    230    struct intel_texture_image *intel_image = intel_texture_image(image);
    231    struct gl_texture_object *texobj = image->TexObject;
    232    struct intel_texture_object *intel_texobj = intel_texture_object(texobj);
    233    bool has_surface_tile_offset = false;
    234    uint32_t draw_x, draw_y;
    235 
    236    _mesa_init_teximage_fields(&intel->ctx, image,
    237 			      width, height, 1,
    238 			      0, internalFormat, format);
    239 
    240    ctx->Driver.FreeTextureImageBuffer(ctx, image);
    241 
    242    intel_image->mt = intel_miptree_create_layout(intel, target, image->TexFormat,
    243                                                  0, 0,
    244                                                  width, height, 1);
    245    if (intel_image->mt == NULL)
    246        return;
    247    intel_region_reference(&intel_image->mt->region, region);
    248    intel_image->mt->total_width = width;
    249    intel_image->mt->total_height = height;
    250    intel_image->mt->level[0].slice[0].x_offset = tile_x;
    251    intel_image->mt->level[0].slice[0].y_offset = tile_y;
    252 
    253    intel_miptree_get_tile_offsets(intel_image->mt, 0, 0, &draw_x, &draw_y);
    254 
    255    /* From "OES_EGL_image" error reporting. We report GL_INVALID_OPERATION
    256     * for EGL images from non-tile aligned sufaces in gen4 hw and earlier which has
    257     * trouble resolving back to destination image due to alignment issues.
    258     */
    259    if (!has_surface_tile_offset &&
    260        (draw_x != 0 || draw_y != 0)) {
    261       _mesa_error(ctx, GL_INVALID_OPERATION, __func__);
    262       intel_miptree_release(&intel_image->mt);
    263       return;
    264    }
    265 
    266    intel_texobj->needs_validate = true;
    267 
    268    intel_image->mt->offset = offset;
    269    assert(region->pitch % region->cpp == 0);
    270    intel_image->base.RowStride = region->pitch / region->cpp;
    271 
    272    /* Immediately validate the image to the object. */
    273    intel_miptree_reference(&intel_texobj->mt, intel_image->mt);
    274 }
    275 
    276 void
    277 intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
    278 		   GLint texture_format,
    279 		   __DRIdrawable *dPriv)
    280 {
    281    struct gl_framebuffer *fb = dPriv->driverPrivate;
    282    struct intel_context *intel = pDRICtx->driverPrivate;
    283    struct gl_context *ctx = &intel->ctx;
    284    struct intel_texture_object *intelObj;
    285    struct intel_renderbuffer *rb;
    286    struct gl_texture_object *texObj;
    287    struct gl_texture_image *texImage;
    288    int level = 0, internalFormat = 0;
    289    mesa_format texFormat = MESA_FORMAT_NONE;
    290 
    291    texObj = _mesa_get_current_tex_object(ctx, target);
    292    intelObj = intel_texture_object(texObj);
    293 
    294    if (!intelObj)
    295       return;
    296 
    297    if (dPriv->lastStamp != dPriv->dri2.stamp ||
    298        !pDRICtx->driScreenPriv->dri2.useInvalidate)
    299       intel_update_renderbuffers(pDRICtx, dPriv);
    300 
    301    rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
    302    /* If the region isn't set, then intel_update_renderbuffers was unable
    303     * to get the buffers for the drawable.
    304     */
    305    if (!rb || !rb->mt)
    306       return;
    307 
    308    if (rb->mt->cpp == 4) {
    309       if (texture_format == __DRI_TEXTURE_FORMAT_RGB) {
    310          internalFormat = GL_RGB;
    311          texFormat = MESA_FORMAT_B8G8R8X8_UNORM;
    312       }
    313       else {
    314          internalFormat = GL_RGBA;
    315          texFormat = MESA_FORMAT_B8G8R8A8_UNORM;
    316       }
    317    } else if (rb->mt->cpp == 2) {
    318       internalFormat = GL_RGB;
    319       texFormat = MESA_FORMAT_B5G6R5_UNORM;
    320    }
    321 
    322    _mesa_lock_texture(&intel->ctx, texObj);
    323    texImage = _mesa_get_tex_image(ctx, texObj, target, level);
    324    intel_set_texture_image_region(ctx, texImage, rb->mt->region, target,
    325                                   internalFormat, texFormat, 0,
    326                                   rb->mt->region->width,
    327                                   rb->mt->region->height,
    328                                   0, 0);
    329    _mesa_unlock_texture(&intel->ctx, texObj);
    330 }
    331 
    332 void
    333 intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
    334 {
    335    /* The old interface didn't have the format argument, so copy our
    336     * implementation's behavior at the time.
    337     */
    338    intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
    339 }
    340 
    341 static void
    342 intel_image_target_texture_2d(struct gl_context *ctx, GLenum target,
    343 			      struct gl_texture_object *texObj,
    344 			      struct gl_texture_image *texImage,
    345 			      GLeglImageOES image_handle)
    346 {
    347    struct intel_context *intel = intel_context(ctx);
    348    __DRIscreen *screen;
    349    __DRIimage *image;
    350 
    351    screen = intel->intelScreen->driScrnPriv;
    352    image = screen->dri2.image->lookupEGLImage(screen, image_handle,
    353 					      screen->loaderPrivate);
    354    if (image == NULL)
    355       return;
    356 
    357    intel_set_texture_image_region(ctx, texImage, image->region,
    358 				  target, image->internal_format,
    359                                   image->format, image->offset,
    360                                   image->width,  image->height,
    361                                   image->tile_x, image->tile_y);
    362 }
    363 
    364 void
    365 intelInitTextureImageFuncs(struct dd_function_table *functions)
    366 {
    367    functions->TexImage = intelTexImage;
    368    functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
    369 }
    370