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/* PR target/44606 */
/* { dg-do run } */
/* { dg-options "-O2" } */
/* { dg-skip-if "requires io" { freestanding } } */
#include <stdio.h>
extern void abort (void);
typedef struct _PixelPacket { unsigned char r, g, b; }
PixelPacket;
#define ARRAYLEN(X) (sizeof(X)/sizeof(X[0]))
PixelPacket q[6];
#define COLS (ARRAYLEN(q) - 1)
PixelPacket p[2*COLS + 22];
#define Minify(POS, WEIGHT) do { \
total_r += (WEIGHT)*(p[POS].r); \
total_g += (WEIGHT)*(p[POS].g); \
total_b += (WEIGHT)*(p[POS].b); \
} while (0)
unsigned long columns = COLS;
int main(void)
{
static const unsigned char answers[COLS] = { 31, 32, 34, 35, 36 };
unsigned long x;
for (x = 0; x < sizeof(p)/sizeof(p[0]); x++) {
p[x].b = (x + 34) | 1;
}
for (x = 0; x < columns; x++) {
double total_r = 0, total_g = 0, total_b = 0;
double saved_r = 0, saved_g = 0, saved_b = 0;
Minify(2*x + 0, 3.0);
Minify(2*x + 1, 7.0);
Minify(2*x + 2, 7.0);
saved_r = total_r;
saved_g = total_g;
Minify(2*x + 11, 15.0);
Minify(2*x + 12, 7.0);
Minify(2*x + 18, 7.0);
Minify(2*x + 19, 15.0);
Minify(2*x + 20, 15.0);
Minify(2*x + 21, 7.0);
q[x].r = (unsigned char)(total_r/128.0 + 0.5);
q[x].g = (unsigned char)(total_g/128.0 + 0.5);
q[x].b = (unsigned char)(total_b/128.0 + 0.5);
fprintf(stderr, "r:%f g:%f b:%f\n", saved_r, saved_g, saved_b);
}
for (x = 0; x < COLS; x++) {
if (answers[x] != q[x].b)
abort();
}
return 0;
}
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