update SDL soruce to 2.0.14

Edward Rudd

2021-06-15 dec7875a6e23212021e4d9080330a42832dfe02a

 source/src/video/directfb/SDL_DirectFB_render.c

@@ -198,11 +198,10 @@
            SDL_DFB_CHECK(destsurf->SetDstBlendFunction(destsurf, DSBF_SRCCOLOR));

            break;
        }
        case SDL_BLENDMODE_MUL:
            data->blitFlags = DSBLIT_BLEND_ALPHACHANNEL;
            data->drawFlags = DSDRAW_BLEND;
            SDL_DFB_CHECK(destsurf->SetSrcBlendFunction(destsurf, DSBF_DSTCOLOR));
            SDL_DFB_CHECK(destsurf->SetSrcBlendFunction(destsurf, DSBF_DESTCOLOR));
            SDL_DFB_CHECK(destsurf->SetDstBlendFunction(destsurf, DSBF_INVSRCALPHA));

            break;
@@ -627,7 +626,7 @@
    }

    cmd->data.draw.count = count;
    SDL_memcpy(verts, rects, count);
    SDL_memcpy(verts, rects, len);
    return 0;
}