Very preliminary code to allow selecting the OpenGL backend at runtime.

Works in the currently supported cases for only Win32 and only X11,
the mixed case is not working yet though.
But applied anyway since the code is slightly less messy than the current one.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@29980 b3059339-0415-0410-9bf9-f77b7e298cf2

1 files changed, 71 insertions, 7 deletions

diff --git a/libvo/gl_common.c b/libvo/gl_common.c
index c039953771..a4ef197035 100644
--- a/libvo/gl_common.c
+++ b/libvo/gl_common.c
@@ -1458,8 +1458,11 @@ static void *w32gpa(const GLubyte *procName) {
   return GetProcAddress(oglmod, procName);
 }
 
-int setGlWindow(int *vinfo, HGLRC *context, HWND win)
+static int setGlWindow_w32(MPGLContext *ctx)
 {
+  HWND win = vo_w32_window;
+  int *vinfo = &ctx->vinfo.w32;
+  HGLRC *context = &ctx->context.w32;
   int new_vinfo;
   HDC windc = vo_w32_get_dc(win);
   HGLRC new_context = 0;
@@ -1518,7 +1521,9 @@ out:
   return res;
 }
 
-void releaseGlContext(int *vinfo, HGLRC *context) {
+static void releaseGlContext_w32(MPGLContext *ctx) {
+  int *vinfo = &ctx->vinfo.w32;
+  HGLRC *context = &ctx->context.w32;
   *vinfo = 0;
   if (*context) {
     wglMakeCurrent(0, 0);
@@ -1527,12 +1532,13 @@ void releaseGlContext(int *vinfo, HGLRC *context) {
   *context = 0;
 }
 
-void swapGlBuffers(void) {
+static void swapGlBuffers_w32(MPGLContext *ctx) {
   HDC vo_hdc = vo_w32_get_dc(vo_w32_window);
   SwapBuffers(vo_hdc);
   vo_w32_release_dc(vo_w32_window, vo_hdc);
 }
-#else
+#endif
+#ifdef CONFIG_X11
 #ifdef HAVE_LIBDL
 #include <dlfcn.h>
 #endif
@@ -1595,8 +1601,11 @@ static void appendstr(char **dst, const char *str)
  * and the caller must initialize it correctly.
  * \ingroup glcontext
  */
-int setGlWindow(XVisualInfo **vinfo, GLXContext *context, Window win)
+static int setGlWindow_x11(MPGLContext *ctx)
 {
+  XVisualInfo **vinfo = &ctx->vinfo.x11;
+  GLXContext *context = &ctx->context.x11;
+  Window win = vo_window;
   XVisualInfo *new_vinfo;
   GLXContext new_context = NULL;
   int keep_context = 0;
@@ -1674,7 +1683,9 @@ int setGlWindow(XVisualInfo **vinfo, GLXContext *context, Window win)
  * \brief free the VisualInfo and GLXContext of an OpenGL context.
  * \ingroup glcontext
  */
-void releaseGlContext(XVisualInfo **vinfo, GLXContext *context) {
+static void releaseGlContext_x11(MPGLContext *ctx) {
+  XVisualInfo **vinfo = &ctx->vinfo.x11;
+  GLXContext *context = &ctx->context.x11;
   if (*vinfo)
     XFree(*vinfo);
   *vinfo = NULL;
@@ -1687,8 +1698,61 @@ void releaseGlContext(XVisualInfo **vinfo, GLXContext *context) {
   *context = 0;
 }
 
-void swapGlBuffers(void) {
+static void swapGlBuffers_x11(MPGLContext *ctx) {
   glXSwapBuffers(mDisplay, vo_window);
 }
+
+static int x11_check_events(void) {
+  return vo_x11_check_events(mDisplay);
+}
 #endif
 
+int init_mpglcontext(MPGLContext *ctx, enum MPGLType type) {
+  memset(ctx, 0, sizeof(*ctx));
+  ctx->type = type;
+  switch (ctx->type) {
+#ifdef GL_WIN32
+  case GLTYPE_W32:
+    ctx->setGlWindow = setGlWindow_w32;
+    ctx->releaseGlContext = releaseGlContext_w32;
+    ctx->swapGlBuffers = swapGlBuffers_w32;
+    ctx->update_xinerama_info = w32_update_xinerama_info;
+    ctx->border = vo_w32_border;
+    ctx->check_events = vo_w32_check_events;
+    ctx->fullscreen = vo_w32_fullscreen;
+    ctx->ontop = vo_w32_ontop;
+    return vo_w32_init();
+#endif
+#ifdef CONFIG_X11
+  case GLTYPE_X11:
+    ctx->setGlWindow = setGlWindow_x11;
+    ctx->releaseGlContext = releaseGlContext_x11;
+    ctx->swapGlBuffers = swapGlBuffers_x11;
+    ctx->update_xinerama_info = update_xinerama_info;
+    ctx->border = vo_x11_border;
+    ctx->check_events = x11_check_events;
+    ctx->fullscreen = vo_x11_fullscreen;
+    ctx->ontop = vo_x11_ontop;
+    return vo_init();
+#endif
+  default:
+    return 0;
+  }
+}
+
+void uninit_mpglcontext(MPGLContext *ctx) {
+  ctx->releaseGlContext(ctx);
+  switch (ctx->type) {
+#ifdef GL_WIN32
+  case GLTYPE_W32:
+    vo_w32_uninit();
+    break;
+#endif
+#ifdef CONFIG_X11
+  case GLTYPE_X11:
+    vo_x11_uninit();
+    break;
+#endif
+  }
+  memset(ctx, 0, sizeof(*ctx));
+}