diff options
author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:14 -0800 |
---|---|---|
committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:28:14 -0800 |
commit | 05806d7af62e07c6225b2e7103a1b115ecf6c9ad (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /tools/rgb2565 | |
parent | 094268cf8cb37b9d904c8a1e3559cdd46d73cf66 (diff) | |
download | build-05806d7af62e07c6225b2e7103a1b115ecf6c9ad.zip build-05806d7af62e07c6225b2e7103a1b115ecf6c9ad.tar.gz build-05806d7af62e07c6225b2e7103a1b115ecf6c9ad.tar.bz2 |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'tools/rgb2565')
-rw-r--r-- | tools/rgb2565/Android.mk | 17 | ||||
-rw-r--r-- | tools/rgb2565/to565.c | 143 |
2 files changed, 0 insertions, 160 deletions
diff --git a/tools/rgb2565/Android.mk b/tools/rgb2565/Android.mk deleted file mode 100644 index 189584d..0000000 --- a/tools/rgb2565/Android.mk +++ /dev/null @@ -1,17 +0,0 @@ -# Copyright 2008 The Android Open Source Project -# -# Android.mk for rgb2565 -# - -LOCAL_PATH:= $(call my-dir) - -# rgb2565 host tool -# ========================================================= -include $(CLEAR_VARS) - -LOCAL_SRC_FILES := to565.c - -LOCAL_CFLAGS += -O2 -Wall -Wno-unused-parameter -LOCAL_MODULE := rgb2565 - -include $(BUILD_HOST_EXECUTABLE) diff --git a/tools/rgb2565/to565.c b/tools/rgb2565/to565.c deleted file mode 100644 index abf9cdb..0000000 --- a/tools/rgb2565/to565.c +++ /dev/null @@ -1,143 +0,0 @@ -/* - * 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)) - -#define from565_r(x) ((((x) >> 11) & 0x1f) * 255 / 31) -#define from565_g(x) ((((x) >> 5) & 0x3f) * 255 / 63) -#define from565_b(x) (((x) & 0x1f) * 255 / 31) - -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_raw_dither(int width) -{ - unsigned char in[3]; - unsigned short out; - int i = 0; - int e; - - int* error = malloc((width+2) * 3 * sizeof(int)); - int* next_error = malloc((width+2) * 3 * sizeof(int)); - memset(error, 0, (width+2) * 3 * sizeof(int)); - memset(next_error, 0, (width+2) * 3 * sizeof(int)); - error += 3; // array goes from [-3..((width+1)*3+2)] - next_error += 3; - - while(read(0, in, 3) == 3) { - int r = in[0] + error[i*3+0]; - int rb = (r < 0) ? 0 : ((r > 255) ? 255 : r); - - int g = in[1] + error[i*3+1]; - int gb = (g < 0) ? 0 : ((g > 255) ? 255 : g); - - int b = in[2] + error[i*3+2]; - int bb = (b < 0) ? 0 : ((b > 255) ? 255 : b); - - out = to565(rb, gb, bb); - write(1, &out, 2); - -#define apply_error(ch) { \ - next_error[(i-1)*3+ch] += e * 3 / 16; \ - next_error[(i)*3+ch] += e * 5 / 16; \ - next_error[(i+1)*3+ch] += e * 1 / 16; \ - error[(i+1)*3+ch] += e - ((e*1/16) + (e*3/16) + (e*5/16)); \ - } - - e = r - from565_r(out); - apply_error(0); - - e = g - from565_g(out); - apply_error(1); - - e = b - from565_b(out); - apply_error(2); - -#undef apply_error - - ++i; - if (i == width) { - // error <- next_error; next_error <- 0 - int* temp = error; error = next_error; next_error = temp; - memset(next_error, 0, (width+1) * 3 * sizeof(int)); - i = 0; - } - } - - free(error-3); - free(next_error-3); - - 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 == 2) && (!strcmp(argv[1],"-rle"))) { - to_565_rle(); - } else { - if (argc > 2 && (!strcmp(argv[1], "-w"))) { - to_565_raw_dither(atoi(argv[2])); - } else { - to_565_raw(); - } - } - return 0; -} |