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/*
* Copyright (C) 2013 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#define ARGB_8888_MAX 0xFFFFFFFF
#define ARGB_8888_MIN 0x00000000
#define RGB_565_MAX 0xFFFF
#define RGB_565_MIN 0x0000
struct test_t
{
char name[256];
uint32_t src_color;
uint16_t dst_color;
size_t count;
};
struct test_t tests[] =
{
{"Count 0", 0, 0, 0},
{"Count 1, Src=Max, Dst=Min", ARGB_8888_MAX, RGB_565_MIN, 1},
{"Count 2, Src=Min, Dst=Max", ARGB_8888_MIN, RGB_565_MAX, 2},
{"Count 3, Src=Max, Dst=Max", ARGB_8888_MAX, RGB_565_MAX, 3},
{"Count 4, Src=Min, Dst=Min", ARGB_8888_MAX, RGB_565_MAX, 4},
{"Count 1, Src=Rand, Dst=Rand", 0x12345678, 0x9ABC, 1},
{"Count 2, Src=Rand, Dst=Rand", 0xABCDEF12, 0x2345, 2},
{"Count 3, Src=Rand, Dst=Rand", 0x11111111, 0xEDFE, 3},
{"Count 4, Src=Rand, Dst=Rand", 0x12345678, 0x9ABC, 4},
{"Count 5, Src=Rand, Dst=Rand", 0xEFEFFEFE, 0xFACC, 5},
{"Count 10, Src=Rand, Dst=Rand", 0x12345678, 0x9ABC, 10}
};
void scanline_t32cb16blend_arm64(uint16_t*, uint32_t*, size_t);
void scanline_t32cb16blend_c(uint16_t * dst, uint32_t* src, size_t count)
{
while (count--)
{
uint16_t d = *dst;
uint32_t s = *src++;
int dstR = (d>>11)&0x1f;
int dstG = (d>>5)&0x3f;
int dstB = (d)&0x1f;
int srcR = (s >> ( 3))&0x1F;
int srcG = (s >> ( 8+2))&0x3F;
int srcB = (s >> (16+3))&0x1F;
int srcAlpha = (s>>24) & 0xFF;
int f = 0x100 - (srcAlpha + ((srcAlpha>>7) & 0x1));
srcR += (f*dstR)>>8;
srcG += (f*dstG)>>8;
srcB += (f*dstB)>>8;
srcR = srcR > 0x1F? 0x1F: srcR;
srcG = srcG > 0x3F? 0x3F: srcG;
srcB = srcB > 0x1F? 0x1F: srcB;
*dst++ = (uint16_t)((srcR<<11)|(srcG<<5)|srcB);
}
}
void scanline_t32cb16blend_test()
{
uint16_t dst_c[16], dst_asm[16];
uint32_t src[16];
uint32_t i;
uint32_t j;
for(i = 0; i < sizeof(tests)/sizeof(struct test_t); ++i)
{
struct test_t test = tests[i];
printf("Testing - %s:",test.name);
memset(dst_c, 0, sizeof(dst_c));
memset(dst_asm, 0, sizeof(dst_asm));
for(j = 0; j < test.count; ++j)
{
dst_c[j] = test.dst_color;
dst_asm[j] = test.dst_color;
src[j] = test.src_color;
}
scanline_t32cb16blend_c(dst_c,src,test.count);
scanline_t32cb16blend_arm64(dst_asm,src,test.count);
if(memcmp(dst_c, dst_asm, sizeof(dst_c)) == 0)
printf("Passed\n");
else
printf("Failed\n");
for(j = 0; j < test.count; ++j)
{
printf("dst_c[%d] = %x, dst_asm[%d] = %x \n", j, dst_c[j], j, dst_asm[j]);
}
}
}
int main()
{
scanline_t32cb16blend_test();
return 0;
}
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