diff --git a/libretro-common/formats/png/rpng_decode_common.h b/libretro-common/formats/png/rpng_decode_common.h
index 0ddecfb43a..b3ab4bbf43 100644
--- a/libretro-common/formats/png/rpng_decode_common.h
+++ b/libretro-common/formats/png/rpng_decode_common.h
@@ -103,7 +103,7 @@ static bool png_reverse_filter(uint32_t *data, const struct png_ihdr *ihdr,
 
    png_pass_geom(ihdr, ihdr->width, ihdr->height, &bpp, &pitch, &pass_size);
 
-   if (pngp->total_out < pass_size)
+   if (pngp->stream.total_out < pass_size)
       return false;
 
    prev_scanline    = (uint8_t*)calloc(1, pitch);
@@ -227,7 +227,7 @@ static bool png_reverse_filter_adam7(uint32_t *data,
       png_pass_geom(&tmp_ihdr, pass_width,
             pass_height, NULL, NULL, &pass_size);
 
-      if (pass_size > pngp->total_out)
+      if (pass_size > pngp->stream.total_out)
       {
          free(tmp_data);
          return false;
@@ -240,8 +240,8 @@ static bool png_reverse_filter_adam7(uint32_t *data,
          return false;
       }
 
-      inflate_buf += pass_size;
-      pngp->total_out -= pass_size;
+      inflate_buf            += pass_size;
+      pngp->stream.total_out -= pass_size;
 
       deinterlace_pass(data,
             ihdr, tmp_data, pass_width, pass_height, &passes[pass]);
diff --git a/libretro-common/formats/png/rpng_decode_fbio.c b/libretro-common/formats/png/rpng_decode_fbio.c
index 5d3bd3795d..20ac9b186a 100644
--- a/libretro-common/formats/png/rpng_decode_fbio.c
+++ b/libretro-common/formats/png/rpng_decode_fbio.c
@@ -22,8 +22,6 @@
 
 #include <formats/rpng.h>
 
-#include <zlib.h>
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -213,9 +211,8 @@ bool rpng_load_image_argb(const char *path, uint32_t **data,
    long pos, file_len;
    FILE *file;
    char header[8];
-   z_stream stream = {0};
    struct rpng_t rpng = {0};
-   struct rpng_process_t process = {0};
+   struct rpng_process_t process = {{0}};
    bool ret      = true;
 
    *data   = NULL;
@@ -304,7 +301,7 @@ bool rpng_load_image_argb(const char *path, uint32_t **data,
    if (!rpng.has_ihdr || !rpng.has_idat || !rpng.has_iend)
       GOTO_END_ERROR();
 
-   if (inflateInit(&stream) != Z_OK)
+   if (inflateInit(&process.stream) != Z_OK)
       GOTO_END_ERROR();
 
    png_pass_geom(&rpng.ihdr, rpng.ihdr.width, rpng.ihdr.height, NULL, NULL, &rpng.inflate_buf_size);
@@ -315,17 +312,17 @@ bool rpng_load_image_argb(const char *path, uint32_t **data,
    if (!rpng.inflate_buf)
       GOTO_END_ERROR();
 
-   stream.next_in   = rpng.idat_buf.data;
-   stream.avail_in  = rpng.idat_buf.size;
-   stream.avail_out = rpng.inflate_buf_size;
-   stream.next_out  = rpng.inflate_buf;
+   process.stream.next_in   = rpng.idat_buf.data;
+   process.stream.avail_in  = rpng.idat_buf.size;
+   process.stream.avail_out = rpng.inflate_buf_size;
+   process.stream.next_out  = rpng.inflate_buf;
 
-   if (inflate(&stream, Z_FINISH) != Z_STREAM_END)
+   if (inflate(&process.stream, Z_FINISH) != Z_STREAM_END)
    {
-      inflateEnd(&stream);
+      inflateEnd(&process.stream);
       GOTO_END_ERROR();
    }
-   inflateEnd(&stream);
+   inflateEnd(&process.stream);
 
    *width  = rpng.ihdr.width;
    *height = rpng.ihdr.height;
@@ -338,8 +335,6 @@ bool rpng_load_image_argb(const char *path, uint32_t **data,
    if (!*data)
       GOTO_END_ERROR();
 
-   process.total_out = stream.total_out;
-
    if (rpng.ihdr.interlace == 1)
    {
       if (!png_reverse_filter_adam7(*data,
diff --git a/libretro-common/formats/png/rpng_decode_fnbio.c b/libretro-common/formats/png/rpng_decode_fnbio.c
index 438a4beba3..7783b725f5 100644
--- a/libretro-common/formats/png/rpng_decode_fnbio.c
+++ b/libretro-common/formats/png/rpng_decode_fnbio.c
@@ -22,8 +22,6 @@
 
 #include <formats/rpng.h>
 
-#include <zlib.h>
-
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -257,10 +255,9 @@ bool rpng_nbio_load_image_argb_iterate(uint8_t *buf, struct rpng_t *rpng)
 bool rpng_nbio_load_image_argb_process(struct rpng_t *rpng,
       uint32_t **data, unsigned *width, unsigned *height)
 {
-   struct rpng_process_t process = {0};
-   z_stream stream = {0};
+   struct rpng_process_t process = {{0}};
 
-   if (inflateInit(&stream) != Z_OK)
+   if (inflateInit(&process.stream) != Z_OK)
       return false;
 
    png_pass_geom(&rpng->ihdr, rpng->ihdr.width,
@@ -272,17 +269,17 @@ bool rpng_nbio_load_image_argb_process(struct rpng_t *rpng,
    if (!rpng->inflate_buf)
       return false;
 
-   stream.next_in   = rpng->idat_buf.data;
-   stream.avail_in  = rpng->idat_buf.size;
-   stream.avail_out = rpng->inflate_buf_size;
-   stream.next_out  = rpng->inflate_buf;
+   process.stream.next_in   = rpng->idat_buf.data;
+   process.stream.avail_in  = rpng->idat_buf.size;
+   process.stream.avail_out = rpng->inflate_buf_size;
+   process.stream.next_out  = rpng->inflate_buf;
 
-   if (inflate(&stream, Z_FINISH) != Z_STREAM_END)
+   if (inflate(&process.stream, Z_FINISH) != Z_STREAM_END)
    {
-      inflateEnd(&stream);
+      inflateEnd(&process.stream);
       return false;
    }
-   inflateEnd(&stream);
+   inflateEnd(&process.stream);
 
    *width  = rpng->ihdr.width;
    *height = rpng->ihdr.height;
@@ -297,8 +294,6 @@ bool rpng_nbio_load_image_argb_process(struct rpng_t *rpng,
    if (!*data)
       return false;
 
-   process.total_out = stream.total_out;
-
    if (rpng->ihdr.interlace == 1)
    {
       if (!png_reverse_filter_adam7(*data,
diff --git a/libretro-common/include/formats/rpng.h b/libretro-common/include/formats/rpng.h
index 3729e63336..f7498e6efc 100644
--- a/libretro-common/include/formats/rpng.h
+++ b/libretro-common/include/formats/rpng.h
@@ -27,6 +27,7 @@
 #include <stddef.h>
 
 #include <boolean.h>
+#include <zlib.h>
 
 #ifdef HAVE_CONFIG_H
 #include "../../config.h"
@@ -62,7 +63,7 @@ struct png_ihdr
 
 struct rpng_process_t
 {
-   size_t total_out;
+   z_stream stream;
 };
 
 struct rpng_t