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[client] opengl: implement & fix opengl support

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This commit is contained in:
Geoffrey McRae
2021-01-27 21:27:26 +11:00
parent 740dad943b
commit 973806dd9c
8 changed files with 175 additions and 40 deletions
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71
client/displayservers/SDL/sdl.c
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@@ -22,7 +22,9 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include <SDL2/SDL.h>
#include <SDL2/SDL_syswm.h>
#ifdef ENABLE_EGL
#include <EGL/eglext.h>
#endif
#if defined(SDL_VIDEO_DRIVER_WAYLAND)
#include <wayland-egl.h>
@@ -58,6 +60,13 @@ static bool sdlProbe(void)
static bool sdlEarlyInit(void)
{
return true;
}
static bool sdlInit(const LG_DSInitParams params)
{
memset(&sdl, 0, sizeof(sdl));
// Allow screensavers for now: we will enable and disable as needed.
SDL_SetHint(SDL_HINT_VIDEO_ALLOW_SCREENSAVER, "1");
@@ -67,12 +76,15 @@ static bool sdlEarlyInit(void)
return false;
}
return true;
}
static bool sdlInit(const LG_DSInitParams params)
{
memset(&sdl, 0, sizeof(sdl));
if (params.opengl)
{
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER , 1);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 4);
SDL_GL_SetAttribute(SDL_GL_RED_SIZE , 8);
SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE , 8);
SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE , 8);
}
sdl.window = SDL_CreateWindow(
params.title,
@@ -84,14 +96,15 @@ static bool sdlInit(const LG_DSInitParams params)
SDL_WINDOW_HIDDEN |
(params.resizable ? SDL_WINDOW_RESIZABLE : 0) |
(params.borderless ? SDL_WINDOW_BORDERLESS : 0) |
(params.maximize ? SDL_WINDOW_MAXIMIZED : 0)
(params.maximize ? SDL_WINDOW_MAXIMIZED : 0) |
(params.opengl ? SDL_WINDOW_OPENGL : 0)
)
);
if (sdl.window == NULL)
{
DEBUG_ERROR("Could not create an SDL window: %s\n", SDL_GetError());
return 1;
goto fail_init;
}
const uint8_t data[4] = {0xf, 0x9, 0x9, 0xf};
@@ -115,6 +128,10 @@ static bool sdlInit(const LG_DSInitParams params)
SDL_SetEventFilter(sdlEventFilter, NULL);
return true;
fail_init:
SDL_Quit();
return false;
}
static void sdlStartup(void)
@@ -123,11 +140,12 @@ static void sdlStartup(void)
static void sdlShutdown(void)
{
SDL_DestroyWindow(sdl.window);
}
static void sdlFree(void)
{
SDL_DestroyWindow(sdl.window);
if (sdl.cursor)
SDL_FreeCursor(sdl.cursor);
@@ -234,9 +252,29 @@ static void sdlEGLSwapBuffers(EGLDisplay display, EGLSurface surface)
{
eglSwapBuffers(display, surface);
}
#endif
#endif //ENABLE_EGL
static void sdlSwapBuffers(void)
static LG_DSGLContext sdlGLCreateContext(void)
{
return (LG_DSGLContext)SDL_GL_CreateContext(sdl.window);
}
static void sdlGLDeleteContext(LG_DSGLContext context)
{
SDL_GL_DeleteContext((SDL_GLContext)context);
}
static void sdlGLMakeCurrent(LG_DSGLContext context)
{
SDL_GL_MakeCurrent(sdl.window, (SDL_GLContext)context);
}
static void sdlGLSetSwapInterval(int interval)
{
SDL_GL_SetSwapInterval(interval);
}
static void sdlGLSwapBuffers(void)
{
SDL_GL_SwapWindow(sdl.window);
}
@@ -334,8 +372,9 @@ static int sdlEventFilter(void * userdata, SDL_Event * event)
&border.bottom,
&border.right
);
app_handleResizeEvent(event->window.data1, event->window.data2,
app_handleResizeEvent(
event->window.data1,
event->window.data2,
border);
break;
}
@@ -478,7 +517,11 @@ struct LG_DisplayServerOps LGDS_SDL =
.eglSwapBuffers = sdlEGLSwapBuffers,
#endif
.glSwapBuffers = sdlSwapBuffers,
.glCreateContext = sdlGLCreateContext,
.glDeleteContext = sdlGLDeleteContext,
.glMakeCurrent = sdlGLMakeCurrent,
.glSetSwapInterval = sdlGLSetSwapInterval,
.glSwapBuffers = sdlGLSwapBuffers,
.showPointer = sdlShowPointer,
.grabPointer = sdlGrabPointer,