1 /*
2 * Copyright (C) 2015 The Android Open Source Project
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
13 * distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
18 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
19 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
22 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
25 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <assert.h>
30 #include <stdlib.h>
31 #include <stdio.h>
32 #include <string.h>
33 #include <inttypes.h>
34
35
36 #define ARGB_8888_MAX 0xFFFFFFFF
37 #define ARGB_8888_MIN 0x00000000
38 #define RGB_565_MAX 0xFFFF
39 #define RGB_565_MIN 0x0000
40
41 struct test_t
42 {
43 char name[256];
44 uint32_t src_color;
45 uint16_t dst_color;
46 size_t count;
47 };
48
49 struct test_t tests[] =
50 {
51 {"Count 1, Src=Max, Dst=Min", ARGB_8888_MAX, RGB_565_MIN, 1},
52 {"Count 2, Src=Min, Dst=Max", ARGB_8888_MIN, RGB_565_MAX, 2},
53 {"Count 3, Src=Max, Dst=Max", ARGB_8888_MAX, RGB_565_MAX, 3},
54 {"Count 4, Src=Min, Dst=Min", ARGB_8888_MAX, RGB_565_MAX, 4},
55 {"Count 1, Src=Rand, Dst=Rand", 0x12345678, 0x9ABC, 1},
56 {"Count 2, Src=Rand, Dst=Rand", 0xABCDEF12, 0x2345, 2},
57 {"Count 3, Src=Rand, Dst=Rand", 0x11111111, 0xEDFE, 3},
58 {"Count 4, Src=Rand, Dst=Rand", 0x12345678, 0x9ABC, 4},
59 {"Count 5, Src=Rand, Dst=Rand", 0xEFEFFEFE, 0xFACC, 5},
60 {"Count 10, Src=Rand, Dst=Rand", 0x12345678, 0x9ABC, 10}
61 };
62
63 void scanline_col32cb16blend_mips(uint16_t *dst, uint32_t src, size_t count);
scanline_col32cb16blend_c(uint16_t * dst,uint32_t src,size_t count)64 void scanline_col32cb16blend_c(uint16_t * dst, uint32_t src, size_t count)
65 {
66 uint32_t srcAlpha = (src>>24);
67 uint32_t f = 0x100 - (srcAlpha + (srcAlpha>>7));
68
69 while (count--)
70 {
71 uint16_t d = *dst;
72 int dstR = (d>>11)&0x1f;
73 int dstG = (d>>5)&0x3f;
74 int dstB = (d)&0x1f;
75 int srcR = (src >> ( 3))&0x1F;
76 int srcG = (src >> ( 8+2))&0x3F;
77 int srcB = (src >> (16+3))&0x1F;
78 srcR += (f*dstR)>>8;
79 srcG += (f*dstG)>>8;
80 srcB += (f*dstB)>>8;
81 *dst++ = (uint16_t)((srcR<<11)|(srcG<<5)|srcB);
82 }
83 }
84
scanline_col32cb16blend_test()85 void scanline_col32cb16blend_test()
86 {
87 uint16_t dst_c[16], dst_asm[16];
88 uint32_t i, j;
89
90 for(i = 0; i < sizeof(tests)/sizeof(struct test_t); ++i)
91 {
92 struct test_t test = tests[i];
93
94 printf("Testing - %s:",test.name);
95
96 memset(dst_c, 0, sizeof(dst_c));
97 memset(dst_asm, 0, sizeof(dst_asm));
98
99 for(j = 0; j < test.count; ++j)
100 {
101 dst_c[j] = test.dst_color;
102 dst_asm[j] = test.dst_color;
103 }
104
105
106 scanline_col32cb16blend_c(dst_c, test.src_color, test.count);
107 scanline_col32cb16blend_mips(dst_asm, test.src_color, test.count);
108
109 if(memcmp(dst_c, dst_asm, sizeof(dst_c)) == 0)
110 printf("Passed\n");
111 else
112 printf("Failed\n");
113
114 for(j = 0; j < test.count; ++j)
115 {
116 printf("dst_c[%d] = %x, dst_asm[%d] = %x \n", j, dst_c[j], j, dst_asm[j]);
117 }
118 }
119 }
120
main()121 int main()
122 {
123 scanline_col32cb16blend_test();
124 return 0;
125 }
126