1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <stdlib.h>
18
19#define ATTRIBUTE_UNUSED __attribute__((unused))
20
21int gray_to_rgb_process(const char** inputs,
22                        const int* input_sizes,
23                        int input_count,
24                        char* output,
25                        int output_size,
26                        void* user_data ATTRIBUTE_UNUSED) {
27  // Make sure we have exactly one input
28  if (input_count != 1)
29    return 0;
30
31  // Make sure sizes match up
32  if (input_sizes[0] != output_size/3)
33    return 0;
34
35  // Get the input and output pointers
36  const char* input_ptr = inputs[0];
37  char* output_ptr = output;
38  if (!input_ptr || !output_ptr)
39    return 0;
40
41  // Run the conversion
42  int i;
43  for (i = 0; i < input_sizes[0]; ++i) {
44    *(output_ptr++) = *(input_ptr);
45    *(output_ptr++) = *(input_ptr);
46    *(output_ptr++) = *(input_ptr++);
47  }
48
49  return 1;
50}
51
52int rgba_to_rgb_process(const char** inputs,
53                        const int* input_sizes,
54                        int input_count,
55                        char* output,
56                        int output_size,
57                        void* user_data ATTRIBUTE_UNUSED) {
58  // Make sure we have exactly one input
59  if (input_count != 1)
60    return 0;
61
62  // Make sure sizes match up
63  if (input_sizes[0]/4 != output_size/3)
64    return 0;
65
66  // Get the input and output pointers
67  const char* input_ptr = inputs[0];
68  char* output_ptr = output;
69  if (!input_ptr || !output_ptr)
70    return 0;
71
72  // Run the conversion
73  int i;
74  for (i = 0; i < input_sizes[0] / 4; ++i) {
75    *(output_ptr++) = *(input_ptr++);
76    *(output_ptr++) = *(input_ptr++);
77    *(output_ptr++) = *(input_ptr++);
78    ++input_ptr;
79  }
80
81  return 1;
82}
83
84int gray_to_rgba_process(const char** inputs,
85                         const int* input_sizes,
86                         int input_count,
87                         char* output,
88                         int output_size,
89                         void* user_data ATTRIBUTE_UNUSED) {
90  // Make sure we have exactly one input
91  if (input_count != 1)
92    return 0;
93
94  // Make sure sizes match up
95  if (input_sizes[0] != output_size/4)
96    return 0;
97
98  // Get the input and output pointers
99  const char* input_ptr = inputs[0];
100  char* output_ptr = output;
101  if (!input_ptr || !output_ptr)
102    return 0;
103
104  // Run the conversion
105  int i;
106  for (i = 0; i < input_sizes[0]; ++i) {
107    *(output_ptr++) = *(input_ptr);
108    *(output_ptr++) = *(input_ptr);
109    *(output_ptr++) = *(input_ptr++);
110    *(output_ptr++) = 255;
111  }
112
113  return 1;
114}
115
116int rgb_to_rgba_process(const char** inputs,
117                        const int* input_sizes,
118                        int input_count,
119                        char* output,
120                        int output_size,
121                        void* user_data ATTRIBUTE_UNUSED) {
122  // Make sure we have exactly one input
123  if (input_count != 1)
124    return 0;
125
126  // Make sure sizes match up
127  if (input_sizes[0]/3 != output_size/4)
128    return 0;
129
130  // Get the input and output pointers
131  const char* input_ptr = inputs[0];
132  char* output_ptr = output;
133  if (!input_ptr || !output_ptr)
134    return 0;
135
136  // Run the conversion
137  int i;
138  for (i = 0; i < output_size / 4; ++i) {
139    *(output_ptr++) = *(input_ptr++);
140    *(output_ptr++) = *(input_ptr++);
141    *(output_ptr++) = *(input_ptr++);
142    *(output_ptr++) = 255;
143  }
144
145  return 1;
146}
147
148