From be941f6a4a97a903e2dbe97549c01065c9e4bdc9 Mon Sep 17 00:00:00 2001
From: Yingjie Wang <phywyj@gmail.com>
Date: Sun, 7 Dec 2025 05:26:56 -0500
Subject: [PATCH] fix: the correct should be (*buffer)[3]

---
 src/render.c    | 2 +-
 src/render.h    | 2 +-
 src/write_png.c | 4 ++--
 src/write_png.h | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/render.c b/src/render.c
index be94f79..1ebfa03 100644
--- a/src/render.c
+++ b/src/render.c
@@ -92,7 +92,7 @@ int pixel_render(const System *system, int i, int j, const Spline_data spline_da
   return MC_pixel_render(system, i, j, spline_data, rgb, pixel_render_max, pixel_render_err, r);
 }
 
-int render(System *system, double *buffer[3], int pixel_render_max, double pixel_render_err, double chi_rela_err) {
+int render(System *system, double (*buffer)[3], int pixel_render_max, double pixel_render_err, double chi_rela_err) {
   double h = (system->H)*(system->w)/(system->W);
   double tanpsi2 = (system->w)*(system->w)+h*h;
   double cotpsi2 = 1/tanpsi2;
diff --git a/src/render.h b/src/render.h
index 708643f..5f5dfe9 100644
--- a/src/render.h
+++ b/src/render.h
@@ -1,4 +1,4 @@
 #include "common.h"
 #include "init.h"
 
-int render(System *system, double *buffer[3], int pixel_render_max, double pixel_render_err, double chi_rela_err);
+int render(System *system, double (*buffer)[3], int pixel_render_max, double pixel_render_err, double chi_rela_err);
diff --git a/src/write_png.c b/src/write_png.c
index ffc74db..d45a903 100644
--- a/src/write_png.c
+++ b/src/write_png.c
@@ -10,7 +10,7 @@ static inline double linear_to_srgb(double x){
   return 1.055 * pow(x, 1.0/2.4) - 0.055;
 }
 
-int buffer_normalize_srgb(double *buffer[3], int W, int H) {
+int buffer_normalize_srgb(double (*buffer)[3], int W, int H) {
   double max = 0;
   for (int j = 0; j < H; j++) {
     for (int i = 0; i < W; i++) {
@@ -31,7 +31,7 @@ int buffer_normalize_srgb(double *buffer[3], int W, int H) {
   return 0;
 }
 
-int write_png(char *filename, double *buffer[3], int W, int H) {
+int write_png(char *filename, double (*buffer)[3], int W, int H) {
   buffer_normalize_srgb(buffer, W, H);
   size_t bufsize = W*H*3;
   uint8_t *img = (uint8_t *)malloc(bufsize);
diff --git a/src/write_png.h b/src/write_png.h
index c83d893..f40d4a1 100644
--- a/src/write_png.h
+++ b/src/write_png.h
@@ -1,3 +1,3 @@
 
 
-int write_png(char *filename, double *buffer[3], int W, int H);
+int write_png(char *filename, double (*buffer)[3], int W, int H);