grub/include/grub/sdl.h
Julian Andres Klode 17d6ac1a7d emu: Add SDL2 support
So all we did with the surface in SDL1 was split into window,
surface, renderer and texture. Instead of drawing into the
surface and then flipping, you build your pixels, then update
a texture and then copy the texture to the renderer.

Here we use an empty RGB surface to hold our pixels, which enables
us to keep most of the code the same. The SDL1 code has been adjusted
to refer to "surface" instead of "window" when trying to access the
properties of the surface.

This approaches the configuration by adding a new --enable-grub-emu-sdl2
argument. If set to yes, or auto detected, it disables SDL1 support
automatically.

This duplicates the sdl module block in Makefile.core.def which may
be something to be aware of, but we also don't want to build separate
module.

Fixes: https://bugs.debian.org/1038035

Signed-off-by: Julian Andres Klode <julian.klode@canonical.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
2023-06-23 00:50:38 +02:00

39 lines
1.4 KiB
C

/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2010 Free Software Foundation, Inc.
*
* GRUB 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 Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <config-util.h>
void EXPORT_FUNC (SDL_Quit) (void);
void EXPORT_FUNC (SDL_Init) (void);
void EXPORT_FUNC (SDL_GetError) (void);
#ifdef HAVE_SDL2
void EXPORT_FUNC (SDL_CreateWindow) (void);
void EXPORT_FUNC (SDL_GetWindowSurface) (void);
void EXPORT_FUNC (SDL_CreateRenderer) (void);
void EXPORT_FUNC (SDL_CreateRGBSurface) (void);
void EXPORT_FUNC (SDL_CreateTexture) (void);
void EXPORT_FUNC (SDL_UpdateTexture) (void);
void EXPORT_FUNC (SDL_SetPaletteColors) (void);
void EXPORT_FUNC (SDL_RenderClear) (void);
void EXPORT_FUNC (SDL_RenderCopy) (void);
void EXPORT_FUNC (SDL_RenderPresent) (void);
#else
void EXPORT_FUNC (SDL_Flip) (void);
void EXPORT_FUNC (SDL_SetColors) (void);
void EXPORT_FUNC (SDL_SetVideoMode) (void);
#endif