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Convert non-mandatory attributes to macros

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They're shorter and more portable.

Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
2018-12-19 20:50:02 +00:00
parent 5f57cb41f9
commit e58cbf8add
11 changed files with 38 additions and 37 deletions
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12
src/kernel.c
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@@ -3,8 +3,8 @@
#include <math.h>
#include "utils.h"
#include "kernel.h"
#include "utils.h"
/*
* A picture will help
@@ -23,11 +23,11 @@
* center +-----+-------------------+-----+
*/
double
sum_kernel(conv *map, int x, int y, int width, int height) {
double attr_const attr_pure sum_kernel(const conv *map, int x, int y, int width,
int height) {
int fx, fy;
double *g_data;
double *g_line = map->data;
const double *g_data;
const double *g_line = map->data;
int g_size = map->size;
int center = g_size / 2;
int fx_start, fx_end;
@@ -77,7 +77,7 @@ sum_kernel(conv *map, int x, int y, int width, int height) {
return v;
}
static double __attribute__((const)) gaussian(double r, double x, double y) {
static double attr_const attr_pure gaussian(double r, double x, double y) {
// Formula can be found here:
// https://en.wikipedia.org/wiki/Gaussian_blur#Mathematics
// Except a special case for r == 0 to produce sharp shadows