diff options
author | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
---|---|---|
committer | The Android Open Source Project <initial-contribution@android.com> | 2008-10-21 07:00:00 -0700 |
commit | b6c1cf6de79035f58b512f4400db458c8401379a (patch) | |
tree | 68979db37c85b499bc384e4ac337ed1424baab51 /tools/rgb2565/to565.c | |
download | build-b6c1cf6de79035f58b512f4400db458c8401379a.zip build-b6c1cf6de79035f58b512f4400db458c8401379a.tar.gz build-b6c1cf6de79035f58b512f4400db458c8401379a.tar.bz2 |
Initial Contribution
Diffstat (limited to 'tools/rgb2565/to565.c')
-rw-r--r-- | tools/rgb2565/to565.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/tools/rgb2565/to565.c b/tools/rgb2565/to565.c new file mode 100644 index 0000000..01d14aa --- /dev/null +++ b/tools/rgb2565/to565.c @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2008 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> + +#define to565(r,g,b) \ + ((((r) >> 3) << 11) | (((g) >> 2) << 5) | ((b) >> 3)) + +void to_565_raw(void) +{ + unsigned char in[3]; + unsigned short out; + + while(read(0, in, 3) == 3) { + out = to565(in[0],in[1],in[2]); + write(1, &out, 2); + } + return; +} + +void to_565_rle(void) +{ + unsigned char in[3]; + unsigned short last, color, count; + unsigned total = 0; + count = 0; + + while(read(0, in, 3) == 3) { + color = to565(in[0],in[1],in[2]); + if (count) { + if ((color == last) && (count != 65535)) { + count++; + continue; + } else { + write(1, &count, 2); + write(1, &last, 2); + total += count; + } + } + last = color; + count = 1; + } + if (count) { + write(1, &count, 2); + write(1, &last, 2); + total += count; + } + fprintf(stderr,"%d pixels\n",total); +} + +int main(int argc, char **argv) +{ + if ((argc > 1) && (!strcmp(argv[1],"-rle"))) { + to_565_rle(); + } else { + to_565_raw(); + } + return 0; +} |