Sven Balzer
83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2026 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "SDL_internal.h"
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#if defined(SDL_VIDEO_DRIVER_OFFSCREEN) && defined(SDL_VIDEO_OPENGL_EGL)
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#include "SDL_offscreenopengles.h"
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#include "SDL_offscreenvideo.h"
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#include "SDL_offscreenwindow.h"
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// EGL implementation of SDL OpenGL support
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bool OFFSCREEN_GLES_LoadLibrary(SDL_VideoDevice *_this, const char *path)
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{
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if (!SDL_EGL_LoadLibraryOnly(_this, path)) {
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return false;
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}
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/* driver_loaded gets incremented by SDL_GL_LoadLibrary when we return,
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but SDL_EGL_InitializeOffscreen checks that we're loaded before then,
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so temporarily bump it since we know that LoadLibraryOnly succeeded. */
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bool result;
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_this->gl_config.driver_loaded++;
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result = SDL_EGL_InitializeOffscreen(_this, 0);
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_this->gl_config.driver_loaded--;
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if (!result) {
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return false;
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}
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if (!SDL_EGL_ChooseConfig(_this)) {
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return false;
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}
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return true;
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}
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SDL_GLContext OFFSCREEN_GLES_CreateContext(SDL_VideoDevice *_this, SDL_Window *window)
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{
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SDL_WindowData *offscreen_window = window->internal;
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SDL_GLContext context;
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context = SDL_EGL_CreateContext(_this, offscreen_window->egl_surface);
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return context;
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}
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bool OFFSCREEN_GLES_MakeCurrent(SDL_VideoDevice *_this, SDL_Window *window, SDL_GLContext context)
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{
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if (window) {
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EGLSurface egl_surface = window->internal->egl_surface;
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return SDL_EGL_MakeCurrent(_this, egl_surface, context);
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} else {
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return SDL_EGL_MakeCurrent(_this, NULL, NULL);
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}
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}
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bool OFFSCREEN_GLES_SwapWindow(SDL_VideoDevice *_this, SDL_Window *window)
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{
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SDL_WindowData *offscreen_wind = window->internal;
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return SDL_EGL_SwapBuffers(_this, offscreen_wind->egl_surface);
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}
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#endif // SDL_VIDEO_DRIVER_OFFSCREEN && SDL_VIDEO_OPENGL_EGL
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