DOCS: Added docs to imgio and refactored some of the names and code of imgio

src/imgio.c

@@ -2,12 +2,13 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <turbojpeg.h>
 
 #include "image/utils.h"
 
 unsigned int*
-ppm_load(const char* file, PPM* m_attr)
+read_ppm(const char* file, PPM* m_attr)
 {
 	LOG("Decoding");
 	unsigned char red, green, blue;
@@ -68,7 +69,7 @@ ppm_load(const char* file, PPM* m_attr)
 }
 
 int
-ppm_save(const unsigned int* buf, const PPM img, char* name)
+write_ppm(const unsigned int* buf, const PPM img, const char* name)
 {
 	if (!buf)
 	{
@@ -132,7 +133,7 @@ ppm_save(const unsigned int* buf, const PPM img, char* name)
 }
 
 unsigned int*
-jpeg_load(JPEG* m_attr)
+read_jpeg(JPEG* m_attr)
 {
 	LOG("Decoding");
 	tjhandle tjdecompress = tj3Init(TJINIT_DECOMPRESS);
@@ -175,7 +176,7 @@ jpeg_load(JPEG* m_attr)
 }
 
 int
-jpeg_save(const unsigned int* src_buf, const JPEG* attr, const char* name)
+write_jpeg(const unsigned int* src_buf, const JPEG* attr, const char* name)
 {
 	LOG("Encoding");
 	tjhandle tjcompress = tj3Init(TJINIT_COMPRESS);
@@ -219,44 +220,84 @@ jpeg_save(const unsigned int* src_buf, const JPEG* attr, const char* name)
 }
 
 void
-transcode_to_jpeg(PPM* in, JPEG* out)
+transcode_to_jpeg(PPM* in)
 {
-	if (!in || !out)
+	size_t length = find_extension(in->name);
+	char str2[length];
+	for (int i = 0; i < length; i++)
+	{
+		str2[i] = in->name[i];
+	}
+	char* str3 = ".jpg";
+	char* result = malloc(strlen(str2) + strlen(str3) + 1);
+	if (result != NULL)
+	{
+		strcat(result, str2);
+		strcat(result, str3);
+	}
+	else
+	{
+		LOGERROR(ERR_MALLOC_NULL);
+		return;
+	}
+	JPEG img;
+	if (!in)
 	{
 		LOGERROR(ERR_IMG_NULL);
 		return;
 	}
-	unsigned int* dst = ppm_load(in->name, in);
+	unsigned int* dst = read_ppm(in->name, in);
 	if (!dst)
 	{
 		LOGERROR(ERR_BUF_NULL);
 		return;
 	}
-	out->width = in->width;
-	out->height = in->height;
-	jpeg_save(dst, out, out->name);
+	img.width = in->width;
+	img.height = in->height;
+	write_jpeg(dst, &img, result);
 	free(dst);
+	free(result);
 }
 
 void
-transcode_to_ppm(JPEG* in, PPM* out)
+transcode_to_ppm(JPEG* in)
 {
-	if (!in || !out)
+	size_t length = find_extension(in->name);
+	char str2[length];
+	for (int i = 0; i < length; i++)
+	{
+		str2[i] = in->name[i];
+	}
+	char* str3 = ".ppm";
+	char* result = malloc(strlen(str2) + strlen(str3) + 1);
+	if (result != NULL)
+	{
+		strcat(result, str2);
+		strcat(result, str3);
+	}
+	else
+	{
+		LOGERROR(ERR_MALLOC_NULL);
+		return;
+	}
+	PPM img;
+	if (!in)
 	{
 		LOGERROR(ERR_IMG_NULL);
 		return;
 	}
-	unsigned int* dst = jpeg_load(in);
+	unsigned int* dst = read_jpeg(in);
 	if (!dst)
 	{
 		LOGERROR(ERR_BUF_NULL);
 		return;
 	}
-	out->width = in->width;
-	out->height = in->height;
-	out->len = out->width * out->height;
-	ppm_save(dst, *out, out->name);
+	img.width = in->width;
+	img.height = in->height;
+	img.len = img.width * img.height;
+	write_ppm(dst, img, result);
 	free(dst);
+	free(result);
 }
 
 PPM
@@ -268,8 +309,7 @@ inherit_from_jpeg(const JPEG* in, const char fmt)
 		LOGERROR(ERR_IMG_NULL);
 		return img;
 	}
-	PPM image = { .name = in->name,
-		      .width = in->width,
+	PPM image = { .width = in->width,
 		      .height = in->height,
 		      .len = in->len,
 		      .fmt = fmt };
@@ -286,7 +326,6 @@ inherit_from_ppm(const PPM* in)
 		return blank;
 	}
 	JPEG image = {
-		.name = in->name,
 		.width = in->width,
 		.height = in->height,
 		.len = in->len,