Use video_driver_read_viewport

gfx/video_driver.c

@@ -753,3 +753,18 @@ bool video_driver_viewport_info(struct video_viewport *vp)
 
    return true;
 }
+
+bool video_driver_read_viewport(uint8_t *buffer)
+{
+   driver_t *driver     = driver_get_ptr();
+
+   if (!driver)
+      return false;
+   if (!driver->video)
+      return false;
+   if (!driver->video->read_viewport)
+      return false;
+
+   return driver->video->read_viewport(driver->video_data,
+         buffer);
+}

gfx/video_driver.h

@@ -298,6 +298,8 @@ void video_driver_set_texture_frame(const void *frame, bool rgb32,
 
 bool video_driver_viewport_info(struct video_viewport *vp);
 
+bool video_driver_read_viewport(uint8_t *buffer);
+
 #ifdef __cplusplus
 }
 #endif

record/record_driver.c

@@ -23,6 +23,7 @@
 #include "../retroarch.h"
 #include "../runloop.h"
 #include "../intl/intl.h"
+#include "../gfx/video_driver.h"
 #include "../gfx/video_viewport.h"
 
 #ifdef HAVE_CONFIG_H
@@ -133,9 +134,7 @@ void recording_dump_frame(const void *data, unsigned width,
       /* Big bottleneck.
        * Since we might need to do read-backs asynchronously,
        * it might take 3-4 times before this returns true. */
-      if (driver->video && driver->video->read_viewport)
-         if (!driver->video->read_viewport(driver->video_data,
-                  global->record.gpu_buffer))
+      if (!video_driver_read_viewport(global->record.gpu_buffer))
             return;
 
       ffemu_data.pitch  = global->record.gpu_width * 3;

screenshot.c

@@ -29,6 +29,7 @@
 #include "runloop.h"
 #include "retroarch_logger.h"
 #include "screenshot.h"
+#include "gfx/video_driver.h"
 #include "gfx/video_viewport.h"
 
 #ifdef HAVE_CONFIG_H
@@ -179,7 +180,6 @@ static bool take_screenshot_viewport(void)
    uint8_t *buffer = NULL;
    bool retval = false;
    struct video_viewport vp = {0};
-   driver_t *driver     = driver_get_ptr();
    settings_t *settings = config_get_ptr();
    global_t *global     = global_get_ptr();
 
@@ -191,9 +191,8 @@ static bool take_screenshot_viewport(void)
    if (!(buffer = (uint8_t*)malloc(vp.width * vp.height * 3)))
       return false;
 
-   if (driver->video && driver->video->read_viewport)
-      if (!driver->video->read_viewport(driver->video_data, buffer))
-         goto done;
+   if (!video_driver_read_viewport(buffer))
+      goto done;
 
    screenshot_dir = settings->screenshot_directory;
 

tools/retroarch-joyconfig.c

@@ -516,3 +516,8 @@ bool video_driver_viewport_info(struct video_viewport *vp)
 {
    return false;
 }
+
+bool video_driver_read_viewport(uint8_t *buffer)
+{
+   return false;
+}