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examples/sdlshare: Port to SDL2

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This commit is contained in:
Sebastian Dröge 2019-03-12 22:09:18 +01:00
parent b0bd448d37
commit 6a5ab50103
4 changed files with 77 additions and 108 deletions
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2
m4/gst-gl.m4
View file

@ -1134,7 +1134,7 @@ AC_DEFUN([AG_GST_GL_EXAMPLES_CHECKS],
dnl sdl is optional and used in examples dnl sdl is optional and used in examples
HAVE_SDL=NO HAVE_SDL=NO
if test "x$BUILD_EXAMPLES" = "xyes"; then if test "x$BUILD_EXAMPLES" = "xyes"; then
PKG_CHECK_MODULES(SDL, sdl >= 1.2.0, HAVE_SDL=yes, HAVE_SDL=no) PKG_CHECK_MODULES(SDL, sdl2, HAVE_SDL=yes, HAVE_SDL=no)
AC_SUBST(SDL_LIBS) AC_SUBST(SDL_LIBS)
AC_SUBST(SDL_CFLAGS) AC_SUBST(SDL_CFLAGS)
fi fi

2
tests/examples/gl/sdl/meson.build
View file

@ -1,4 +1,4 @@
sdl_dep = dependency('sdl', version : '>=1.2.0', required : get_option('examples')) sdl_dep = dependency('sdl2', version : '>=2.0', required : get_option('examples'))
have_sdl_gl = build_gstgl and ( have_sdl_gl = build_gstgl and (
enabled_gl_apis.contains('gl') and enabled_gl_apis.contains('gl') and
(enabled_gl_platforms.contains('glx') or enabled_gl_platforms.contains('wgl')) and (enabled_gl_platforms.contains('glx') or enabled_gl_platforms.contains('wgl')) and

86
tests/examples/gl/sdl/sdlshare.c
View file

@ -26,12 +26,12 @@
#endif #endif
#include <GL/gl.h> #include <GL/gl.h>
#include "SDL/SDL.h" #include <SDL2/SDL.h>
#include "SDL/SDL_opengl.h" #include <SDL2/SDL_opengl.h>
#ifndef WIN32 #ifndef WIN32
#include <GL/glx.h> #include <GL/glx.h>
#include "SDL/SDL_syswm.h" #include <SDL2/SDL_syswm.h>
#include <gst/gl/x11/gstgldisplay_x11.h> #include <gst/gl/x11/gstgldisplay_x11.h>
#endif #endif
@ -41,9 +41,12 @@
static GstGLContext *sdl_context; static GstGLContext *sdl_context;
static GstGLDisplay *sdl_gl_display; static GstGLDisplay *sdl_gl_display;
static GAsyncQueue *queue_input_buf = NULL; static SDL_Window *sdl_window;
static GAsyncQueue *queue_output_buf = NULL; static SDL_GLContext sdl_gl_context;
static GMainLoop *loop = NULL;
static GAsyncQueue *queue_input_buf;
static GAsyncQueue *queue_output_buf;
static GMainLoop *loop;
/* rotation angle for the triangle. */ /* rotation angle for the triangle. */
float rtri = 0.0f; float rtri = 0.0f;
@ -132,7 +135,7 @@ DrawGLScene (GstBuffer * buf)
rquad -= 1.0f; // Decrease The Rotation Variable For The Quad rquad -= 1.0f; // Decrease The Rotation Variable For The Quad
// swap buffers to display, since we're double buffered. // swap buffers to display, since we're double buffered.
SDL_GL_SwapBuffers (); SDL_GL_SwapWindow (sdl_window);
gst_video_frame_unmap (&v_frame); gst_video_frame_unmap (&v_frame);
} }
@ -154,7 +157,9 @@ update_sdl_scene (gpointer data)
} }
} }
SDL_GL_MakeCurrent (sdl_window, sdl_gl_context);
DrawGLScene (buf); DrawGLScene (buf);
SDL_GL_MakeCurrent (sdl_window, NULL);
/* push buffer so it can be unref later */ /* push buffer so it can be unref later */
g_async_queue_push (queue_output_buf, buf); g_async_queue_push (queue_output_buf, buf);
@ -266,13 +271,12 @@ main (int argc, char **argv)
{ {
#ifdef WIN32 #ifdef WIN32
HGLRC sdl_gl_context = 0; HGLRC gl_context = 0;
HDC sdl_dc = 0; HDC sdl_dc = 0;
#else #else
SDL_SysWMinfo info; SDL_SysWMinfo info;
Display *sdl_display = NULL; Display *sdl_display = NULL;
Window sdl_win = 0; GLXContext gl_context = NULL;
GLXContext sdl_gl_context = NULL;
#endif #endif
GstPipeline *pipeline = NULL; GstPipeline *pipeline = NULL;
@ -287,47 +291,44 @@ main (int argc, char **argv)
return -1; return -1;
} }
/* Create a 640x480 OpenGL screen */ /* Create a 640x480 OpenGL window */
if (SDL_SetVideoMode (640, 480, 0, SDL_OPENGL) == NULL) { sdl_window =
SDL_CreateWindow ("SDL and gst-plugins-gl", SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_OPENGL);
if (sdl_window == NULL) {
fprintf (stderr, "Unable to create OpenGL screen: %s\n", SDL_GetError ()); fprintf (stderr, "Unable to create OpenGL screen: %s\n", SDL_GetError ());
SDL_Quit (); SDL_Quit ();
return -1; return -1;
} }
/* Set the title bar in environments that support it */ sdl_gl_context = SDL_GL_CreateContext (sdl_window);
SDL_WM_SetCaption ("SDL and gst-plugins-gl", NULL);
/* Loop, drawing and checking events */
InitGL (640, 480);
gst_init (&argc, &argv); gst_init (&argc, &argv);
loop = g_main_loop_new (NULL, FALSE); loop = g_main_loop_new (NULL, FALSE);
/* retrieve and turn off sdl opengl context */ SDL_GL_MakeCurrent (sdl_window, sdl_gl_context);
/* Loop, drawing and checking events */
InitGL (640, 480);
#ifdef WIN32 #ifdef WIN32
sdl_gl_context = wglGetCurrentContext (); gl_context = wglGetCurrentContext ();
sdl_dc = wglGetCurrentDC (); sdl_dc = wglGetCurrentDC ();
wglMakeCurrent (0, 0);
platform = "wgl"; platform = "wgl";
sdl_gl_display = gst_gl_display_new (); sdl_gl_display = gst_gl_display_new ();
#else #else
SDL_VERSION (&info.version); SDL_VERSION (&info.version);
SDL_GetWMInfo (&info); SDL_GetWindowWMInfo (sdl_window, &info);
/* FIXME: This display is different to the one that SDL uses to create the sdl_display = info.info.x11.display;
* GL context inside SDL_SetVideoMode() above which fails on Intel hardware gl_context = glXGetCurrentContext ();
*/
sdl_display = info.info.x11.gfxdisplay;
sdl_win = info.info.x11.window;
sdl_gl_context = glXGetCurrentContext ();
glXMakeCurrent (sdl_display, None, 0);
platform = "glx"; platform = "glx";
sdl_gl_display = sdl_gl_display =
(GstGLDisplay *) gst_gl_display_x11_new_with_display (sdl_display); (GstGLDisplay *) gst_gl_display_x11_new_with_display (sdl_display);
#endif #endif
SDL_GL_MakeCurrent (sdl_window, NULL);
sdl_context = sdl_context =
gst_gl_context_new_wrapped (sdl_gl_display, (guintptr) sdl_gl_context, gst_gl_context_new_wrapped (sdl_gl_display, (guintptr) gl_context,
gst_gl_platform_from_string (platform), GST_GL_API_OPENGL); gst_gl_platform_from_string (platform), GST_GL_API_OPENGL);
pipeline = pipeline =
@ -355,13 +356,6 @@ main (int argc, char **argv)
return -1; return -1;
} }
/* turn on back sdl opengl context */
#ifdef WIN32
wglMakeCurrent (sdl_dc, sdl_gl_context);
#else
glXMakeCurrent (sdl_display, sdl_win, sdl_gl_context);
#endif
queue_input_buf = g_async_queue_new (); queue_input_buf = g_async_queue_new ();
queue_output_buf = g_async_queue_new (); queue_output_buf = g_async_queue_new ();
@ -375,15 +369,6 @@ main (int argc, char **argv)
g_main_loop_run (loop); g_main_loop_run (loop);
/* before to deinitialize the gst-gl-opengl context,
* no shared context (here the sdl one) must be current
*/
#ifdef WIN32
wglMakeCurrent (0, 0);
#else
glXMakeCurrent (sdl_display, sdl_win, sdl_gl_context);
#endif
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL); gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
gst_object_unref (pipeline); gst_object_unref (pipeline);
@ -406,12 +391,9 @@ main (int argc, char **argv)
gst_buffer_unref (buf); gst_buffer_unref (buf);
} }
/* turn on back sdl opengl context */ SDL_GL_DeleteContext (gl_context);
#ifdef WIN32
wglMakeCurrent (sdl_dc, sdl_gl_context); SDL_DestroyWindow (sdl_window);
#else
glXMakeCurrent (sdl_display, None, 0);
#endif
SDL_Quit (); SDL_Quit ();

95
tests/examples/gl/sdl/sdlshare2.c
View file

@ -26,12 +26,12 @@
#endif #endif
#include <GL/gl.h> #include <GL/gl.h>
#include "SDL/SDL.h" #include <SDL2/SDL.h>
#include "SDL/SDL_opengl.h" #include <SDL2/SDL_opengl.h>
#ifndef WIN32 #ifndef WIN32
#include <GL/glx.h> #include <GL/glx.h>
#include "SDL/SDL_syswm.h" #include <SDL2/SDL_syswm.h>
#include <gst/gl/x11/gstgldisplay_x11.h> #include <gst/gl/x11/gstgldisplay_x11.h>
#endif #endif
@ -41,11 +41,14 @@
static GstGLContext *sdl_context; static GstGLContext *sdl_context;
static GstGLDisplay *sdl_gl_display; static GstGLDisplay *sdl_gl_display;
static SDL_Window *sdl_window;
static SDL_GLContext sdl_gl_context;
/* rotation angle for the triangle. */ /* rotation angle for the triangle. */
float rtri = 0.0f; static float rtri = 0.0f;
/* rotation angle for the quadrilateral. */ /* rotation angle for the quadrilateral. */
float rquad = 0.0f; static float rquad = 0.0f;
/* A general OpenGL initialization function. Sets all of the initial parameters. */ /* A general OpenGL initialization function. Sets all of the initial parameters. */
static void static void
@ -127,7 +130,7 @@ DrawGLScene (GstVideoFrame * v_frame)
rquad -= 1.0f; // Decrease The Rotation Variable For The Quad rquad -= 1.0f; // Decrease The Rotation Variable For The Quad
// swap buffers to display, since we're double buffered. // swap buffers to display, since we're double buffered.
SDL_GL_SwapBuffers (); SDL_GL_SwapWindow (sdl_window);
} }
static GMutex app_lock; static GMutex app_lock;
@ -154,17 +157,17 @@ update_sdl_scene (gpointer data)
while (SDL_PollEvent (&event)) { while (SDL_PollEvent (&event)) {
if (event.type == SDL_QUIT) { if (event.type == SDL_QUIT) {
stop_pipeline (pipeline); stop_pipeline (pipeline);
return FALSE; return G_SOURCE_REMOVE;
} }
if (event.type == SDL_KEYDOWN) { if (event.type == SDL_KEYDOWN) {
if (event.key.keysym.sym == SDLK_ESCAPE) { if (event.key.keysym.sym == SDLK_ESCAPE) {
stop_pipeline (pipeline); stop_pipeline (pipeline);
return FALSE; return G_SOURCE_REMOVE;
} }
} }
} }
return TRUE; return G_SOURCE_CONTINUE;
} }
static gboolean static gboolean
@ -172,8 +175,11 @@ executeCallback (gpointer data)
{ {
g_mutex_lock (&app_lock); g_mutex_lock (&app_lock);
if (!app_quit) if (!app_quit) {
SDL_GL_MakeCurrent (sdl_window, sdl_gl_context);
DrawGLScene (data); DrawGLScene (data);
SDL_GL_MakeCurrent (sdl_window, NULL);
}
app_rendered = TRUE; app_rendered = TRUE;
g_cond_signal (&app_cond); g_cond_signal (&app_cond);
@ -285,13 +291,12 @@ int
main (int argc, char **argv) main (int argc, char **argv)
{ {
#ifdef WIN32 #ifdef WIN32
HGLRC sdl_gl_context = 0; HGLRC gl_context = 0;
HDC sdl_dc = 0; HDC sdl_dc = 0;
#else #else
SDL_SysWMinfo info; SDL_SysWMinfo info;
Display *sdl_display = NULL; Display *sdl_display = NULL;
Window sdl_win = 0; GLXContext gl_context = NULL;
GLXContext sdl_gl_context = NULL;
#endif #endif
GMainLoop *loop = NULL; GMainLoop *loop = NULL;
@ -307,46 +312,47 @@ main (int argc, char **argv)
} }
/* Create a 640x480 OpenGL screen */ /* Create a 640x480 OpenGL screen */
if (SDL_SetVideoMode (640, 480, 0, SDL_OPENGL) == NULL) { sdl_window =
SDL_CreateWindow ("SDL and gst-plugins-gl", SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED, 640, 480, SDL_WINDOW_OPENGL);
if (sdl_window == NULL) {
fprintf (stderr, "Unable to create OpenGL screen: %s\n", SDL_GetError ()); fprintf (stderr, "Unable to create OpenGL screen: %s\n", SDL_GetError ());
SDL_Quit (); SDL_Quit ();
return -1; return -1;
} }
/* Set the title bar in environments that support it */ sdl_gl_context = SDL_GL_CreateContext (sdl_window);
SDL_WM_SetCaption ("SDL and gst-plugins-gl", NULL); if (sdl_gl_context == NULL) {
fprintf (stderr, "Unable to create OpenGL context: %s\n", SDL_GetError ());
SDL_Quit ();
/* Loop, drawing and checking events */ return -1;
InitGL (640, 480); }
gst_init (&argc, &argv); gst_init (&argc, &argv);
loop = g_main_loop_new (NULL, FALSE); loop = g_main_loop_new (NULL, FALSE);
/* retrieve and turn off sdl opengl context */ SDL_GL_MakeCurrent (sdl_window, sdl_gl_context);
/* Loop, drawing and checking events */
InitGL (640, 480);
#ifdef WIN32 #ifdef WIN32
sdl_gl_context = wglGetCurrentContext (); gl_context = wglGetCurrentContext ();
sdl_dc = wglGetCurrentDC (); sdl_dc = wglGetCurrentDC ();
wglMakeCurrent (0, 0);
platform = "wgl"; platform = "wgl";
sdl_gl_display = gst_gl_display_new (); sdl_gl_display = gst_gl_display_new ();
#else #else
SDL_VERSION (&info.version); SDL_VERSION (&info.version);
SDL_GetWMInfo (&info); SDL_GetWindowWMInfo (sdl_window, &info);
/* FIXME: This display is different to the one that SDL uses to create the sdl_display = info.info.x11.display;
* GL context inside SDL_SetVideoMode() above which fails on Intel hardware gl_context = glXGetCurrentContext ();
*/
sdl_display = info.info.x11.gfxdisplay;
sdl_win = info.info.x11.window;
sdl_gl_context = glXGetCurrentContext ();
glXMakeCurrent (sdl_display, None, 0);
platform = "glx"; platform = "glx";
sdl_gl_display = sdl_gl_display =
(GstGLDisplay *) gst_gl_display_x11_new_with_display (sdl_display); (GstGLDisplay *) gst_gl_display_x11_new_with_display (sdl_display);
#endif #endif
SDL_GL_MakeCurrent (sdl_window, NULL);
sdl_context = sdl_context =
gst_gl_context_new_wrapped (sdl_gl_display, (guintptr) sdl_gl_context, gst_gl_context_new_wrapped (sdl_gl_display, (guintptr) gl_context,
gst_gl_platform_from_string (platform), GST_GL_API_OPENGL); gst_gl_platform_from_string (platform), GST_GL_API_OPENGL);
pipeline = pipeline =
@ -371,28 +377,12 @@ main (int argc, char **argv)
* shared with the sdl one */ * shared with the sdl one */
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PAUSED); gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PAUSED);
/* turn on back sdl opengl context */
#ifdef WIN32
wglMakeCurrent (sdl_dc, sdl_gl_context);
#else
glXMakeCurrent (sdl_display, sdl_win, sdl_gl_context);
#endif
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING); gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
g_timeout_add (100, update_sdl_scene, pipeline); g_timeout_add (100, update_sdl_scene, pipeline);
g_main_loop_run (loop); g_main_loop_run (loop);
/* before to deinitialize the gst-gl-opengl context,
* no shared context (here the sdl one) must be current
*/
#ifdef WIN32
wglMakeCurrent (0, 0);
#else
glXMakeCurrent (sdl_display, sdl_win, sdl_gl_context);
#endif
gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL); gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_NULL);
gst_object_unref (pipeline); gst_object_unref (pipeline);
@ -402,12 +392,9 @@ main (int argc, char **argv)
gst_object_unref (sdl_context); gst_object_unref (sdl_context);
gst_object_unref (sdl_gl_display); gst_object_unref (sdl_gl_display);
/* turn on back sdl opengl context */ SDL_GL_DeleteContext (gl_context);
#ifdef WIN32
wglMakeCurrent (sdl_dc, sdl_gl_context); SDL_DestroyWindow (sdl_window);
#else
glXMakeCurrent (sdl_display, None, 0);
#endif
SDL_Quit (); SDL_Quit ();