diff options
Diffstat (limited to 'third_party/libopenjpeg20/image.c')
| -rw-r--r-- | third_party/libopenjpeg20/image.c | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/third_party/libopenjpeg20/image.c b/third_party/libopenjpeg20/image.c index 8e68668e42..23462f05ff 100644 --- a/third_party/libopenjpeg20/image.c +++ b/third_party/libopenjpeg20/image.c @@ -47,7 +47,8 @@ opj_image_t* OPJ_CALLCONV opj_image_create(OPJ_UINT32 numcmpts, opj_image_cmptpa /* allocate memory for the per-component information */ image->comps = (opj_image_comp_t*)opj_calloc(1,image->numcomps * sizeof(opj_image_comp_t)); if(!image->comps) { - fprintf(stderr,"Unable to allocate memory for image.\n"); + /* TODO replace with event manager, breaks API */ + /* fprintf(stderr,"Unable to allocate memory for image.\n"); */ opj_image_destroy(image); return NULL; } @@ -65,7 +66,8 @@ opj_image_t* OPJ_CALLCONV opj_image_create(OPJ_UINT32 numcmpts, opj_image_cmptpa comp->sgnd = cmptparms[compno].sgnd; comp->data = (OPJ_INT32*) opj_calloc(comp->w * comp->h, sizeof(OPJ_INT32)); if(!comp->data) { - fprintf(stderr,"Unable to allocate memory for image.\n"); + /* TODO replace with event manager, breaks API */ + /* fprintf(stderr,"Unable to allocate memory for image.\n"); */ opj_image_destroy(image); return NULL; } @@ -107,27 +109,29 @@ void OPJ_CALLCONV opj_image_destroy(opj_image_t *image) { void opj_image_comp_header_update(opj_image_t * p_image_header, const struct opj_cp * p_cp) { OPJ_UINT32 i, l_width, l_height; - OPJ_INT32 l_x0, l_y0, l_x1, l_y1; - OPJ_INT32 l_comp_x0, l_comp_y0, l_comp_x1, l_comp_y1; + OPJ_UINT32 l_x0, l_y0, l_x1, l_y1; + OPJ_UINT32 l_comp_x0, l_comp_y0, l_comp_x1, l_comp_y1; opj_image_comp_t* l_img_comp = NULL; - l_x0 = opj_int_max((OPJ_INT32)p_cp->tx0 , (OPJ_INT32)p_image_header->x0); - l_y0 = opj_int_max((OPJ_INT32)p_cp->ty0 , (OPJ_INT32)p_image_header->y0); - l_x1 = opj_int_min((OPJ_INT32)(p_cp->tx0 + p_cp->tw * p_cp->tdx), (OPJ_INT32)p_image_header->x1); - l_y1 = opj_int_min((OPJ_INT32)(p_cp->ty0 + p_cp->th * p_cp->tdy), (OPJ_INT32)p_image_header->y1); + l_x0 = opj_uint_max(p_cp->tx0 , p_image_header->x0); + l_y0 = opj_uint_max(p_cp->ty0 , p_image_header->y0); + l_x1 = p_cp->tx0 + (p_cp->tw - 1U) * p_cp->tdx; /* validity of p_cp members used here checked in opj_j2k_read_siz. Can't overflow. */ + l_y1 = p_cp->ty0 + (p_cp->th - 1U) * p_cp->tdy; /* can't overflow */ + l_x1 = opj_uint_min(opj_uint_adds(l_x1, p_cp->tdx), p_image_header->x1); /* use add saturated to prevent overflow */ + l_y1 = opj_uint_min(opj_uint_adds(l_y1, p_cp->tdy), p_image_header->y1); /* use add saturated to prevent overflow */ l_img_comp = p_image_header->comps; for (i = 0; i < p_image_header->numcomps; ++i) { - l_comp_x0 = opj_int_ceildiv(l_x0, (OPJ_INT32)l_img_comp->dx); - l_comp_y0 = opj_int_ceildiv(l_y0, (OPJ_INT32)l_img_comp->dy); - l_comp_x1 = opj_int_ceildiv(l_x1, (OPJ_INT32)l_img_comp->dx); - l_comp_y1 = opj_int_ceildiv(l_y1, (OPJ_INT32)l_img_comp->dy); - l_width = (OPJ_UINT32)opj_int_ceildivpow2(l_comp_x1 - l_comp_x0, (OPJ_INT32)l_img_comp->factor); - l_height = (OPJ_UINT32)opj_int_ceildivpow2(l_comp_y1 - l_comp_y0, (OPJ_INT32)l_img_comp->factor); + l_comp_x0 = opj_uint_ceildiv(l_x0, l_img_comp->dx); + l_comp_y0 = opj_uint_ceildiv(l_y0, l_img_comp->dy); + l_comp_x1 = opj_uint_ceildiv(l_x1, l_img_comp->dx); + l_comp_y1 = opj_uint_ceildiv(l_y1, l_img_comp->dy); + l_width = opj_uint_ceildivpow2(l_comp_x1 - l_comp_x0, l_img_comp->factor); + l_height = opj_uint_ceildivpow2(l_comp_y1 - l_comp_y0, l_img_comp->factor); l_img_comp->w = l_width; l_img_comp->h = l_height; - l_img_comp->x0 = (OPJ_UINT32)l_comp_x0/*l_x0*/; - l_img_comp->y0 = (OPJ_UINT32)l_comp_y0/*l_y0*/; + l_img_comp->x0 = l_comp_x0; + l_img_comp->y0 = l_comp_y0; ++l_img_comp; } } |