DOS: initial VGA int13 graphics driver

Makefile.common

@@ -1268,3 +1268,11 @@ ifeq ($(HAVE_COCOA),1)
 			 ui/drivers/cocoa/cocoa_common.o \
 			 gfx/drivers_context/cocoa_gl_ctx.o
 endif
+
+ifneq ($(findstring DOS,$(OS)),)
+   OBJ += gfx/drivers/vga_gfx.o gfx/drivers_font/vga_font.o
+
+   ifeq ($(HAVE_MENU_COMMON), 1)
+      OBJ += menu/drivers_display/menu_display_vga.o
+   endif
+endif

config.def.h

@@ -53,6 +53,7 @@ enum video_driver_enum
    VIDEO_DISPMANX,
    VIDEO_CACA,
    VIDEO_GDI,
+   VIDEO_VGA,
    VIDEO_NULL
 };
 
@@ -213,6 +214,8 @@ enum record_driver_enum
 #define VIDEO_DEFAULT_DRIVER VIDEO_SDL2
 #elif defined(_WIN32) && !defined(_XBOX)
 #define VIDEO_DEFAULT_DRIVER VIDEO_GDI
+#elif defined(DJGPP)
+#define VIDEO_DEFAULT_DRIVER VIDEO_VGA
 #elif defined(HAVE_DYLIB) && !defined(ANDROID)
 #define VIDEO_DEFAULT_DRIVER VIDEO_EXT
 #else

configuration.c

@@ -314,6 +314,8 @@ const char *config_get_default_video(void)
          return "caca";
       case VIDEO_GDI:
          return "gdi";
+      case VIDEO_VGA:
+         return "vga";
       case VIDEO_NULL:
          break;
    }

gfx/drivers/caca_gfx.c

@@ -40,7 +40,7 @@ static unsigned caca_menu_pitch       = 0;
 static unsigned caca_video_width      = 0;
 static unsigned caca_video_height     = 0;
 static unsigned caca_video_pitch      = 0;
-static bool caca_rgb32                = 0;
+static bool caca_rgb32                = false;
 
 static void caca_gfx_free(void *data);
 
@@ -120,7 +120,7 @@ static bool caca_gfx_frame(void *data, const void *frame,
    if (!frame || !frame_width || !frame_height)
       return true;
 
-   if (  caca_video_width  != frame_width   || 
+   if (  caca_video_width  != frame_width   ||
          caca_video_height != frame_height  ||
          caca_video_pitch  != pitch)
    {
@@ -143,9 +143,9 @@ static bool caca_gfx_frame(void *data, const void *frame,
    width = caca_get_canvas_width(caca_cv);
    height = caca_get_canvas_height(caca_cv);
 
-   if (  frame_to_copy == frame && 
-         frame_width   == 4 && 
-         frame_height  == 4 && 
+   if (  frame_to_copy == frame &&
+         frame_width   == 4 &&
+         frame_height  == 4 &&
          (frame_width < width && frame_height < height))
       draw = false;
 
@@ -284,9 +284,9 @@ static void caca_set_texture_frame(void *data,
       caca_menu_frame = NULL;
    }
 
-   if ( !caca_menu_frame || 
-         caca_menu_width  != width  || 
-         caca_menu_height != height || 
+   if ( !caca_menu_frame ||
+         caca_menu_width  != width  ||
+         caca_menu_height != height ||
          caca_menu_pitch  != pitch)
       if (pitch && height)
          caca_menu_frame = (unsigned char*)malloc(pitch * height);

gfx/drivers/vga_gfx.c

@@ -0,0 +1,360 @@
+/*  RetroArch - A frontend for libretro.
+ *  Copyright (C) 2010-2014 - Hans-Kristian Arntzen
+ *  Copyright (C) 2011-2016 - Daniel De Matteis
+ *  Copyright (C) 2016 - Brad Parker
+ *
+ *  RetroArch is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with RetroArch.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <retro_miscellaneous.h>
+#include <dpmi.h>
+#include <pc.h>
+
+#ifdef HAVE_MENU
+#include "../../menu/menu_driver.h"
+#endif
+
+#include "../common/vga_common.h"
+
+#include "../font_driver.h"
+
+#include "../../driver.h"
+#include "../../verbosity.h"
+
+static unsigned char *vga_menu_frame = NULL;
+static unsigned vga_menu_width       = 0;
+static unsigned vga_menu_height      = 0;
+static unsigned vga_menu_pitch       = 0;
+static unsigned vga_menu_bits        = 0;
+static unsigned vga_video_width      = 0;
+static unsigned vga_video_height     = 0;
+static unsigned vga_video_pitch      = 0;
+static unsigned vga_video_bits       = 0;
+static bool vga_rgb32                = false;
+
+static void set_mode_13h()
+{
+   __dpmi_regs r;
+
+   r.x.ax = 0x13;
+   __dpmi_int(0x10, &r);
+}
+
+static void return_to_text_mode()
+{
+   __dpmi_regs r;
+
+   r.x.ax = 3;
+   __dpmi_int(0x10, &r);
+}
+
+static void vga_vsync()
+{
+   /* wait until any previous retrace has ended */
+   do
+   {
+   }
+   while (inportb(0x3DA) & 8);
+
+   /* wait until a new retrace has just begun */
+   do
+   {
+   }
+   while (!(inportb(0x3DA) & 8));
+}
+
+static void vga_gfx_create(void)
+{
+   set_mode_13h();
+}
+
+static void *vga_gfx_init(const video_info_t *video,
+      const input_driver_t **input, void **input_data)
+{
+   vga_t *vga        = (vga_t*)calloc(1, sizeof(*vga));
+
+   *input              = NULL;
+   *input_data         = NULL;
+
+   vga_video_width    = video->width;
+   vga_video_height   = video->height;
+   vga_rgb32          = video->rgb32;
+
+   if (video->rgb32)
+      vga_video_pitch = video->width * 4;
+   else
+      vga_video_pitch = video->width * 2;
+
+   vga_gfx_create();
+
+   if (video->font_enable)
+      font_driver_init_osd(NULL, false, FONT_DRIVER_RENDER_VGA);
+
+   return vga;
+}
+
+static bool vga_gfx_frame(void *data, const void *frame,
+      unsigned frame_width, unsigned frame_height, uint64_t frame_count,
+      unsigned pitch, const char *msg, video_frame_info_t *video_info)
+{
+   size_t len = 0;
+   void *buffer = NULL;
+   unsigned width, height, bits;
+   const void *frame_to_copy = frame;
+   bool draw = true;
+
+   (void)data;
+   (void)frame;
+   (void)frame_width;
+   (void)frame_height;
+   (void)pitch;
+   (void)msg;
+
+   if (!frame || !frame_width || !frame_height)
+      return true;
+
+#ifdef HAVE_MENU
+   menu_driver_frame(video_info);
+#endif
+
+   if (  vga_video_width  != frame_width   ||
+         vga_video_height != frame_height  ||
+         vga_video_pitch  != pitch)
+   {
+      if (frame_width > 4 && frame_height > 4)
+      {
+         vga_video_width = frame_width;
+         vga_video_height = frame_height;
+         vga_video_pitch = pitch;
+      }
+   }
+
+   if (vga_menu_frame && menu_driver_ctl(RARCH_MENU_CTL_IS_ALIVE, NULL))
+   {
+      frame_to_copy = vga_menu_frame;
+      width         = vga_menu_width;
+      height        = vga_menu_height;
+      pitch         = vga_menu_pitch;
+      bits          = vga_menu_bits;
+   }
+   else
+   {
+      width         = vga_video_width;
+      height        = vga_video_height;
+      pitch         = vga_video_pitch;
+
+      if (frame_width == 4 && frame_height == 4 && (frame_width < width && frame_height < height))
+         draw = false;
+
+      if (menu_driver_ctl(RARCH_MENU_CTL_IS_ALIVE, NULL))
+         draw = false;
+   }
+
+   if (draw)
+   {
+      vga_vsync();
+      dosmemput(frame_to_copy, MIN(320,width)*MIN(200,height), 0xA0000);
+   }
+
+   if (msg)
+      font_driver_render_msg(video_info, NULL, msg, NULL);
+
+   video_context_driver_update_window_title(video_info);
+
+   return true;
+}
+
+static void vga_gfx_set_nonblock_state(void *data, bool toggle)
+{
+   (void)data;
+   (void)toggle;
+}
+
+static bool vga_gfx_alive(void *data)
+{
+   (void)data;
+   video_driver_set_size(&vga_video_width, &vga_video_height);
+   return true;
+}
+
+static bool vga_gfx_focus(void *data)
+{
+   (void)data;
+   return true;
+}
+
+static bool vga_gfx_suppress_screensaver(void *data, bool enable)
+{
+   (void)data;
+   (void)enable;
+   return false;
+}
+
+static bool vga_gfx_has_windowed(void *data)
+{
+   (void)data;
+   return true;
+}
+
+static void vga_gfx_free(void *data)
+{
+   (void)data;
+
+   if (vga_menu_frame)
+   {
+      free(vga_menu_frame);
+      vga_menu_frame = NULL;
+   }
+
+   return_to_text_mode();
+}
+
+static bool vga_gfx_set_shader(void *data,
+      enum rarch_shader_type type, const char *path)
+{
+   (void)data;
+   (void)type;
+   (void)path;
+
+   return false;
+}
+
+static void vga_gfx_set_rotation(void *data,
+      unsigned rotation)
+{
+   (void)data;
+   (void)rotation;
+}
+
+static void vga_gfx_viewport_info(void *data,
+      struct video_viewport *vp)
+{
+   (void)data;
+   (void)vp;
+}
+
+static bool vga_gfx_read_viewport(void *data, uint8_t *buffer)
+{
+   (void)data;
+   (void)buffer;
+
+   return true;
+}
+
+static void vga_set_texture_frame(void *data,
+      const void *frame, bool rgb32, unsigned width, unsigned height,
+      float alpha)
+{
+   unsigned pitch = width * 2;
+
+   if (rgb32)
+      pitch = width * 4;
+
+   if (vga_menu_frame)
+   {
+      free(vga_menu_frame);
+      vga_menu_frame = NULL;
+   }
+
+   if ( !vga_menu_frame ||
+         vga_menu_width  != width  ||
+         vga_menu_height != height ||
+         vga_menu_pitch  != pitch)
+      if (pitch && height)
+         vga_menu_frame = (unsigned char*)malloc(pitch * height);
+
+   if (vga_menu_frame && frame && pitch && height)
+   {
+      memcpy(vga_menu_frame, frame, pitch * height);
+      vga_menu_width  = width;
+      vga_menu_height = height;
+      vga_menu_pitch  = pitch;
+      vga_menu_bits   = rgb32 ? 32 : 16;
+   }
+}
+
+static void vga_set_osd_msg(void *data, const char *msg,
+      const void *params, void *font)
+{
+   video_frame_info_t video_info;
+   video_driver_build_info(&video_info);
+   font_driver_render_msg(&video_info, font, msg, params);
+}
+
+static const video_poke_interface_t vga_poke_interface = {
+   NULL,
+   NULL,
+   NULL,
+   NULL,
+   NULL,
+   NULL,
+   NULL,
+#ifdef HAVE_FBO
+   NULL,
+#else
+   NULL,
+#endif
+   NULL,
+   NULL,
+   NULL,
+#if defined(HAVE_MENU)
+   vga_set_texture_frame,
+   NULL,
+   vga_set_osd_msg,
+   NULL,
+#else
+   NULL,
+   NULL,
+   NULL,
+   NULL,
+#endif
+
+   NULL,
+#ifdef HAVE_MENU
+   NULL,
+#endif
+};
+
+static void vga_gfx_get_poke_interface(void *data,
+      const video_poke_interface_t **iface)
+{
+   (void)data;
+   *iface = &vga_poke_interface;
+}
+
+void vga_gfx_set_viewport(void *data, unsigned viewport_width,
+      unsigned viewport_height, bool force_full, bool allow_rotate)
+{
+}
+
+video_driver_t video_vga = {
+   vga_gfx_init,
+   vga_gfx_frame,
+   vga_gfx_set_nonblock_state,
+   vga_gfx_alive,
+   vga_gfx_focus,
+   vga_gfx_suppress_screensaver,
+   vga_gfx_has_windowed,
+   vga_gfx_set_shader,
+   vga_gfx_free,
+   "vga",
+   vga_gfx_set_viewport,
+   vga_gfx_set_rotation,
+   vga_gfx_viewport_info,
+   vga_gfx_read_viewport,
+   NULL, /* read_frame_raw */
+
+#ifdef HAVE_OVERLAY
+  NULL, /* overlay_interface */
+#endif
+  vga_gfx_get_poke_interface,
+};

gfx/drivers_font/vga_font.c

@@ -0,0 +1,147 @@
+/*  RetroArch - A frontend for libretro.
+ *  Copyright (C) 2010-2014 - Hans-Kristian Arntzen
+ *  Copyright (C) 2011-2016 - Daniel De Matteis
+ *  Copyright (C) 2016 - Brad Parker
+ * 
+ *  RetroArch is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with RetroArch.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdlib.h>
+#include <string/stdstring.h>
+
+#ifdef HAVE_CONFIG_H
+#include "../../config.h"
+#endif
+
+#include "../font_driver.h"
+#include "../../verbosity.h"
+#include "../common/vga_common.h"
+
+typedef struct
+{
+   const font_renderer_driver_t *vga_font_driver;
+   void *vga_font_data;
+   vga_t *vga;
+} vga_raster_t;
+
+static void *vga_init_font(void *data,
+      const char *font_path, float font_size)
+{
+   vga_raster_t *font  = (vga_raster_t*)calloc(1, sizeof(*font));
+
+   if (!font)
+      return NULL;
+
+   font->vga = (vga_t*)data;
+
+   font_size = 1;
+
+   if (!font_renderer_create_default((const void**)&font->vga_font_driver,
+            &font->vga_font_data, font_path, font_size))
+   {
+      RARCH_WARN("Couldn't initialize font renderer.\n");
+      return NULL;
+   }
+
+   return font;
+}
+
+static void vga_render_free_font(void *data)
+{
+
+}
+
+static int vga_get_message_width(void *data, const char *msg,
+      unsigned msg_len, float scale)
+{
+   return 0;
+}
+
+static const struct font_glyph *vga_font_get_glyph(
+      void *data, uint32_t code)
+{
+   return NULL;
+}
+
+static void vga_render_msg(video_frame_info_t *video_info,
+      void *data, const char *msg,
+      const void *userdata)
+{
+   float x, y, scale;
+   unsigned width, height;
+   unsigned newX, newY;
+   unsigned align;
+   vga_raster_t              *font = (vga_raster_t*)data;
+   const struct font_params *params = (const struct font_params*)userdata;
+
+   if (!font || string_is_empty(msg))
+      return;
+
+   if (params)
+   {
+      x = params->x;
+      y = params->y;
+      scale = params->scale;
+      align = params->text_align;
+   }
+   else
+   {
+      x = video_info->font_msg_pos_x;
+      y = video_info->font_msg_pos_y;
+      scale = 1.0f;
+      align = TEXT_ALIGN_LEFT;
+   }
+
+   if (!font->vga)
+      return;
+
+   width    = VGA_WIDTH;
+   height   = VGA_HEIGHT;
+   newY     = height - (y * height * scale);
+
+   switch (align)
+   {
+      case TEXT_ALIGN_LEFT:
+         newX = x * width * scale;
+         break;
+      case TEXT_ALIGN_RIGHT:
+         newX = (x * width * scale) - strlen(msg);
+         break;
+      case TEXT_ALIGN_CENTER:
+         newX = (x * width * scale) - (strlen(msg) / 2);
+         break;
+      default:
+         break;
+   }
+}
+
+static void vga_font_flush_block(unsigned width, unsigned height,
+      void* data)
+{
+   (void)data;
+}
+
+static void vga_font_bind_block(void* data, void* userdata)
+{
+   (void)data;
+}
+
+font_renderer_t vga_font = {
+   vga_init_font,
+   vga_render_free_font,
+   vga_render_msg,
+   "vga font",
+   vga_font_get_glyph,       /* get_glyph */
+   vga_font_bind_block,      /* bind_block */
+   vga_font_flush_block,     /* flush */
+   vga_get_message_width     /* get_message_width */
+};

gfx/font_driver.c

@@ -178,6 +178,35 @@ static bool caca_font_init_first(
 }
 #endif
 
+#ifdef DJGPP
+static const font_renderer_t *vga_font_backends[] = {
+   &vga_font,
+   NULL,
+};
+
+static bool vga_font_init_first(
+      const void **font_driver, void **font_handle,
+      void *video_data, const char *font_path, float font_size)
+{
+   unsigned i;
+
+   for (i = 0; vga_font_backends[i]; i++)
+   {
+      void *data = vga_font_backends[i]->init(
+            video_data, font_path, font_size);
+
+      if (!data)
+         continue;
+
+      *font_driver = vga_font_backends[i];
+      *font_handle = data;
+      return true;
+   }
+
+   return false;
+}
+#endif
+
 #if defined(_WIN32) && !defined(_XBOX)
 static const font_renderer_t *gdi_font_backends[] = {
    &gdi_font,
@@ -335,6 +364,11 @@ static bool font_init_first(
       case FONT_DRIVER_RENDER_GDI:
          return gdi_font_init_first(font_driver, font_handle,
                video_data, font_path, font_size);
+#endif
+#ifdef DJGPP
+      case FONT_DRIVER_RENDER_VGA:
+         return vga_font_init_first(font_driver, font_handle,
+               video_data, font_path, font_size);
 #endif
       case FONT_DRIVER_RENDER_DONT_CARE:
          /* TODO/FIXME - lookup graphics driver's 'API' */

gfx/font_driver.h

@@ -35,7 +35,8 @@ enum font_driver_render_api
    FONT_DRIVER_RENDER_CTR,
    FONT_DRIVER_RENDER_VULKAN_API,
    FONT_DRIVER_RENDER_CACA,
-   FONT_DRIVER_RENDER_GDI
+   FONT_DRIVER_RENDER_GDI,
+   FONT_DRIVER_RENDER_VGA
 };
 
 enum text_alignment
@@ -171,6 +172,7 @@ extern font_renderer_t ctr_font;
 extern font_renderer_t vulkan_raster_font;
 extern font_renderer_t caca_font;
 extern font_renderer_t gdi_font;
+extern font_renderer_t vga_font;
 
 extern font_renderer_driver_t stb_font_renderer;
 extern font_renderer_driver_t stb_unicode_font_renderer;

gfx/video_driver.c

@@ -275,6 +275,9 @@ static const video_driver_t *video_drivers[] = {
 #endif
 #ifdef HAVE_CACA
    &video_caca,
+#endif
+#ifdef DJGPP
+   &video_vga,
 #endif
    &video_null,
    NULL,

gfx/video_driver.h

@@ -578,6 +578,7 @@ extern video_driver_t video_drm;
 extern video_driver_t video_xshm;
 extern video_driver_t video_caca;
 extern video_driver_t video_gdi;
+extern video_driver_t video_vga;
 extern video_driver_t video_null;
 
 extern const void *frame_cache_data;

griffin/griffin.c

@@ -405,6 +405,10 @@ FONTS
 #include "../gfx/drivers_font/caca_font.c"
 #endif
 
+#if defined(DJGPP)
+#include "../gfx/drivers_font/vga_font.c"
+#endif
+
 #if defined(_WIN32) && !defined(_XBOX)
 #include "../gfx/drivers_font/gdi_font.c"
 #endif
@@ -1000,6 +1004,10 @@ MENU
 #include "../menu/drivers_display/menu_display_caca.c"
 #endif
 
+#ifdef DJGPP
+#include "../menu/drivers_display/menu_display_vga.c"
+#endif
+
 #if defined(_WIN32) && !defined(_XBOX)
 #include "../menu/drivers_display/menu_display_gdi.c"
 #endif

menu/drivers_display/menu_display_vga.c

@@ -0,0 +1,101 @@
+/*  RetroArch - A frontend for libretro.
+ *  Copyright (C) 2011-2016 - Daniel De Matteis
+ *  Copyright (C) 2016 - Brad Parker
+ *
+ *  RetroArch is free software: you can redistribute it and/or modify it under the terms
+ *  of the GNU General Public License as published by the Free Software Found-
+ *  ation, either version 3 of the License, or (at your option) any later version.
+ *
+ *  RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ *  PURPOSE.  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with RetroArch.
+ *  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <time.h>
+
+#include <queues/message_queue.h>
+#include <retro_miscellaneous.h>
+
+#include "../../config.def.h"
+#include "../../gfx/font_driver.h"
+#include "../../gfx/video_context_driver.h"
+
+#include "../menu_display.h"
+
+static void *menu_display_vga_get_default_mvp(void)
+{
+   return NULL;
+}
+
+static void menu_display_vga_blend_begin(void)
+{
+}
+
+static void menu_display_vga_blend_end(void)
+{
+}
+
+static void menu_display_vga_draw(void *data)
+{
+   (void)data;
+}
+
+static void menu_display_vga_draw_pipeline(void *data)
+{
+   (void)data;
+}
+
+static void menu_display_vga_viewport(void *data)
+{
+   (void)data;
+}
+
+static void menu_display_vga_restore_clear_color(void)
+{
+}
+
+static void menu_display_vga_clear_color(menu_display_ctx_clearcolor_t *clearcolor)
+{
+   (void)clearcolor;
+}
+
+static bool menu_display_vga_font_init_first(
+      void **font_handle, void *video_data,
+      const char *font_path, float font_size)
+{
+   font_data_t **handle = (font_data_t**)font_handle;
+   *handle = font_driver_init_first(video_data,
+         font_path, font_size, true, FONT_DRIVER_RENDER_VGA);
+   return *handle;
+}
+
+static const float *menu_display_vga_get_default_vertices(void)
+{
+   static float dummy[16] = {0.0f};
+   return &dummy[0];
+}
+
+static const float *menu_display_vga_get_default_tex_coords(void)
+{
+   static float dummy[16] = {0.0f};
+   return &dummy[0];
+}
+
+menu_display_ctx_driver_t menu_display_ctx_vga = {
+   menu_display_vga_draw,
+   menu_display_vga_draw_pipeline,
+   menu_display_vga_viewport,
+   menu_display_vga_blend_begin,
+   menu_display_vga_blend_end,
+   menu_display_vga_restore_clear_color,
+   menu_display_vga_clear_color,
+   menu_display_vga_get_default_mvp,
+   menu_display_vga_get_default_vertices,
+   menu_display_vga_get_default_tex_coords,
+   menu_display_vga_font_init_first,
+   MENU_VIDEO_DRIVER_VGA,
+   "menu_display_vga",
+};

menu/menu_display.c

@@ -85,6 +85,9 @@ static menu_display_ctx_driver_t *menu_display_ctx_drivers[] = {
 #endif
 #if defined(_WIN32) && !defined(_XBOX)
    &menu_display_ctx_gdi,
+#endif
+#ifdef DJGPP
+   &menu_display_ctx_vga,
 #endif
    &menu_display_ctx_null,
    NULL,
@@ -147,6 +150,10 @@ static bool menu_display_check_compatibility(
          if (string_is_equal(video_driver, "gdi"))
             return true;
          break;
+      case MENU_VIDEO_DRIVER_VGA:
+         if (string_is_equal(video_driver, "vga"))
+            return true;
+         break;
    }
 
    return false;

menu/menu_display.h

@@ -97,7 +97,8 @@ enum menu_display_driver_type
    MENU_VIDEO_DRIVER_VITA2D,
    MENU_VIDEO_DRIVER_CTR,
    MENU_VIDEO_DRIVER_CACA,
-   MENU_VIDEO_DRIVER_GDI
+   MENU_VIDEO_DRIVER_GDI,
+   MENU_VIDEO_DRIVER_VGA
 };
 
 typedef struct menu_display_ctx_clearcolor
@@ -302,6 +303,7 @@ extern menu_display_ctx_driver_t menu_display_ctx_vita2d;
 extern menu_display_ctx_driver_t menu_display_ctx_ctr;
 extern menu_display_ctx_driver_t menu_display_ctx_caca;
 extern menu_display_ctx_driver_t menu_display_ctx_gdi;
+extern menu_display_ctx_driver_t menu_display_ctx_vga;
 extern menu_display_ctx_driver_t menu_display_ctx_null;
 
 RETRO_END_DECLS