egl: Overhaul driver API.

The motivation is so that drivers do not need to look up and check for
bad display, context, and etc.  It also becomes unnecessary for drivers
to call the link functions.

This commit makes eglapi.[ch] do the lookup and check.  As a result, the
driver API is overhauled, and almost all sources and drivers need
update.  The updates are mainly find and replace with human brains.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>

1 files changed, 59 insertions, 95 deletions

diff --git a/src/gallium/winsys/egl_xlib/egl_xlib.c b/src/gallium/winsys/egl_xlib/egl_xlib.c
index f409a3fd6b..ed7eab50dd 100644
--- a/src/gallium/winsys/egl_xlib/egl_xlib.c
+++ b/src/gallium/winsys/egl_xlib/egl_xlib.c
@@ -103,18 +103,16 @@ xlib_egl_driver(_EGLDriver *drv)
 
 
 static INLINE struct xlib_egl_surface *
-lookup_surface(EGLSurface surf)
+lookup_surface(_EGLSurface *surf)
 {
-   _EGLSurface *surface = _eglLookupSurface(surf);
-   return (struct xlib_egl_surface *) surface;
+   return (struct xlib_egl_surface *) surf;
 }
 
 
 static INLINE struct xlib_egl_context *
-lookup_context(EGLContext ctx)
+lookup_context(_EGLContext *ctx)
 {
-   _EGLContext *context = _eglLookupContext(ctx);
-   return (struct xlib_egl_context *) context;
+   return (struct xlib_egl_context *) ctx;
 }
 
 
@@ -133,13 +131,12 @@ bitcount(unsigned int n)
  * Create the EGLConfigs.  (one per X visual)
  */
 static void
-create_configs(_EGLDriver *drv, EGLDisplay dpy)
+create_configs(_EGLDriver *drv, _EGLDisplay *disp)
 {
    static const EGLint all_apis = (EGL_OPENGL_ES_BIT |
                                    EGL_OPENGL_ES2_BIT |
                                    EGL_OPENVG_BIT |
                                    EGL_OPENGL_BIT);
-   _EGLDisplay *disp = _eglLookupDisplay(dpy);
    XVisualInfo *visInfo, visTemplate;
    int num_visuals, i;
 
@@ -194,7 +191,7 @@ create_configs(_EGLDriver *drv, EGLDisplay dpy)
  * Called via eglInitialize(), drv->API.Initialize().
  */
 static EGLBoolean
-xlib_eglInitialize(_EGLDriver *drv, EGLDisplay dpy,
+xlib_eglInitialize(_EGLDriver *drv, _EGLDisplay *dpy,
                    EGLint *minor, EGLint *major)
 {
    create_configs(drv, dpy);
@@ -213,7 +210,7 @@ xlib_eglInitialize(_EGLDriver *drv, EGLDisplay dpy,
  * Called via eglTerminate(), drv->API.Terminate().
  */
 static EGLBoolean
-xlib_eglTerminate(_EGLDriver *drv, EGLDisplay dpy)
+xlib_eglTerminate(_EGLDriver *drv, _EGLDisplay *dpy)
 {
    return EGL_TRUE;
 }
@@ -342,24 +339,23 @@ flush_frontbuffer(struct pipe_winsys *pws,
 /**
  * Called via eglCreateContext(), drv->API.CreateContext().
  */
-static EGLContext
-xlib_eglCreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
-                      EGLContext share_list, const EGLint *attrib_list)
+static _EGLContext *
+xlib_eglCreateContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf,
+                      _EGLContext *share_list, const EGLint *attrib_list)
 {
    struct xlib_egl_driver *xdrv = xlib_egl_driver(drv);
-   _EGLConfig *conf = _eglLookupConfig(drv, dpy, config);
    struct xlib_egl_context *ctx;
    struct st_context *share_ctx = NULL; /* XXX fix */
    __GLcontextModes visual;
 
    ctx = CALLOC_STRUCT(xlib_egl_context);
    if (!ctx)
-      return EGL_NO_CONTEXT;
+      return NULL;
 
    /* let EGL lib init the common stuff */
    if (!_eglInitContext(drv, &ctx->Base, conf, attrib_list)) {
       free(ctx);
-      return EGL_NO_CONTEXT;
+      return NULL;
    }
 
    /* API-dependent context creation */
@@ -379,41 +375,33 @@ xlib_eglCreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
    default:
       _eglError(EGL_BAD_MATCH, "eglCreateContext(unsupported API)");
       free(ctx);
-      return EGL_NO_CONTEXT;
+      return NULL;
    }
 
-   _eglLinkContext(&ctx->Base, _eglLookupDisplay(dpy));
-
-   return _eglGetContextHandle(&ctx->Base);
+   return &ctx->Base;
 }
 
 
 static EGLBoolean
-xlib_eglDestroyContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx)
+xlib_eglDestroyContext(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx)
 {
    struct xlib_egl_context *context = lookup_context(ctx);
-   if (context) {
-      _eglUnlinkContext(&context->Base);
-      if (!_eglIsContextBound(&context->Base)) {
-         /* API-dependent clean-up */
-         switch (context->Base.ClientAPI) {
-         case EGL_OPENGL_ES_API:
-         case EGL_OPENVG_API:
-            /* fall-through */
-         case EGL_OPENGL_API:
-            st_destroy_context(context->Context);
-            break;
-         default:
-            assert(0);
-         }
-         free(context);
+
+   if (!_eglIsContextBound(&context->Base)) {
+      /* API-dependent clean-up */
+      switch (context->Base.ClientAPI) {
+      case EGL_OPENGL_ES_API:
+      case EGL_OPENVG_API:
+         /* fall-through */
+      case EGL_OPENGL_API:
+         st_destroy_context(context->Context);
+         break;
+      default:
+         assert(0);
       }
-      return EGL_TRUE;
-   }
-   else {
-      _eglError(EGL_BAD_CONTEXT, "eglDestroyContext");
-      return EGL_TRUE;
+      free(context);
    }
+   return EGL_TRUE;
 }
 
 
@@ -421,15 +409,15 @@ xlib_eglDestroyContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx)
  * Called via eglMakeCurrent(), drv->API.MakeCurrent().
  */
 static EGLBoolean
-xlib_eglMakeCurrent(_EGLDriver *drv, EGLDisplay dpy,
-                    EGLSurface draw, EGLSurface read, EGLContext ctx)
+xlib_eglMakeCurrent(_EGLDriver *drv, _EGLDisplay *dpy,
+                    _EGLSurface *draw, _EGLSurface *read, _EGLContext *ctx)
 {
    struct xlib_egl_context *context = lookup_context(ctx);
    struct xlib_egl_surface *draw_surf = lookup_surface(draw);
    struct xlib_egl_surface *read_surf = lookup_surface(read);
    struct st_context *oldctx = st_get_current();
 
-   if (!_eglMakeCurrent(drv, dpy, draw, read, context))
+   if (!_eglMakeCurrent(drv, dpy, draw, read, ctx))
       return EGL_FALSE;
 
    /* Flush before switching context.  Check client API? */
@@ -488,31 +476,26 @@ choose_stencil_format(const __GLcontextModes *visual)
 /**
  * Called via eglCreateWindowSurface(), drv->API.CreateWindowSurface().
  */
-static EGLSurface
-xlib_eglCreateWindowSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+static _EGLSurface *
+xlib_eglCreateWindowSurface(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
                             NativeWindowType window, const EGLint *attrib_list)
 {
    struct xlib_egl_driver *xdrv = xlib_egl_driver(drv);
-   _EGLDisplay *disp = _eglLookupDisplay(dpy);
-   _EGLConfig *conf = _eglLookupConfig(drv, dpy, config);
-
    struct xlib_egl_surface *surf;
    __GLcontextModes visual;
    uint width, height;
 
    surf = CALLOC_STRUCT(xlib_egl_surface);
    if (!surf)
-      return EGL_NO_SURFACE;
+      return NULL;
 
    /* Let EGL lib init the common stuff */
    if (!_eglInitSurface(drv, &surf->Base, EGL_WINDOW_BIT,
                         conf, attrib_list)) {
       free(surf);
-      return EGL_NO_SURFACE;
+      return NULL;
    }
 
-   _eglLinkSurface(&surf->Base, disp);
-
    /*
     * Now init the Xlib and gallium stuff
     */
@@ -539,46 +522,35 @@ xlib_eglCreateWindowSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
 
    st_resize_framebuffer(surf->Framebuffer, width, height);
 
-   return _eglGetSurfaceHandle(&surf->Base);
+   return &surf->Base;
 }
 
 
-static EGLSurface
-xlib_eglCreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
+static _EGLSurface *
+xlib_eglCreatePbufferSurface(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
                              const EGLint *attrib_list)
 {
    struct xlib_egl_driver *xdrv = xlib_egl_driver(drv);
-   _EGLDisplay *disp = _eglLookupDisplay(dpy);
-   _EGLConfig *conf = _eglLookupConfig(drv, dpy, config);
    struct xlib_egl_surface *surf;
    __GLcontextModes visual;
    uint width, height;
    EGLBoolean bind_texture;
 
-   if (!disp) {
-      _eglError(EGL_BAD_DISPLAY, "eglCreatePbufferSurface");
-      return EGL_NO_SURFACE;
-   }
-   if (!conf) {
-      _eglError(EGL_BAD_CONFIG, "eglCreatePbufferSurface");
-      return EGL_NO_SURFACE;
-   }
-
    surf = CALLOC_STRUCT(xlib_egl_surface);
    if (!surf) {
       _eglError(EGL_BAD_ALLOC, "eglCreatePbufferSurface");
-      return EGL_NO_SURFACE;
+      return NULL;
    }
 
    if (!_eglInitSurface(drv, &surf->Base, EGL_PBUFFER_BIT,
                         conf, attrib_list)) {
       free(surf);
-      return EGL_NO_SURFACE;
+      return NULL;
    }
    if (surf->Base.Width < 0 || surf->Base.Height < 0) {
       _eglError(EGL_BAD_PARAMETER, "eglCreatePbufferSurface");
       free(surf);
-      return EGL_NO_SURFACE;
+      return NULL;
    }
 
    bind_texture = (surf->Base.TextureFormat != EGL_NO_TEXTURE);
@@ -588,19 +560,19 @@ xlib_eglCreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
        (surf->Base.TextureTarget != EGL_NO_TEXTURE && !bind_texture)) {
       _eglError(EGL_BAD_MATCH, "eglCreatePbufferSurface");
       free(surf);
-      return EGL_NO_SURFACE;
+      return NULL;
    }
    /* a framebuffer of zero width or height confuses st */
    if (width == 0 || height == 0) {
       _eglError(EGL_BAD_MATCH, "eglCreatePbufferSurface");
       free(surf);
-      return EGL_NO_SURFACE;
+      return NULL;
    }
    /* no mipmap generation */
    if (surf->Base.MipmapTexture) {
       _eglError(EGL_BAD_MATCH, "eglCreatePbufferSurface");
       free(surf);
-      return EGL_NO_SURFACE;
+      return NULL;
    }
 
    surf->winsys = xdrv->winsys;
@@ -616,34 +588,27 @@ xlib_eglCreatePbufferSurface(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
                                              (void *) surf);
    st_resize_framebuffer(surf->Framebuffer, width, height);
 
-   return _eglLinkSurface(&surf->Base, disp);
+   return &surf->Base;
 }
 
 
 static EGLBoolean
-xlib_eglDestroySurface(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface)
+xlib_eglDestroySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface)
 {
    struct xlib_egl_surface *surf = lookup_surface(surface);
-   if (surf) {
-      _eglUnlinkSurface(&surf->Base);
-      if (!_eglIsSurfaceBound(&surf->Base)) {
-         if (surf->Base.Type != EGL_PBUFFER_BIT)
-            XFreeGC(surf->Dpy, surf->Gc);
-         st_unreference_framebuffer(surf->Framebuffer);
-         free(surf);
-      }
-      return EGL_TRUE;
-   }
-   else {
-      _eglError(EGL_BAD_SURFACE, "eglDestroySurface");
-      return EGL_FALSE;
+   if (!_eglIsSurfaceBound(&surf->Base)) {
+      if (surf->Base.Type != EGL_PBUFFER_BIT)
+         XFreeGC(surf->Dpy, surf->Gc);
+      st_unreference_framebuffer(surf->Framebuffer);
+      free(surf);
    }
+   return EGL_TRUE;
 }
 
 
 static EGLBoolean
-xlib_eglBindTexImage(_EGLDriver *drv, EGLDisplay dpy,
-                     EGLSurface surface, EGLint buffer)
+xlib_eglBindTexImage(_EGLDriver *drv, _EGLDisplay *dpy,
+                     _EGLSurface *surface, EGLint buffer)
 {
    struct xlib_egl_surface *xsurf = lookup_surface(surface);
    struct xlib_egl_context *xctx;
@@ -680,12 +645,12 @@ xlib_eglBindTexImage(_EGLDriver *drv, EGLDisplay dpy,
 
    /* flush properly */
    if (eglGetCurrentSurface(EGL_DRAW) == surface) {
-      xctx = lookup_context(eglGetCurrentContext());
+      xctx = lookup_context(_eglGetCurrentContext());
       st_flush(xctx->Context, PIPE_FLUSH_RENDER_CACHE | PIPE_FLUSH_FRAME,
                NULL);
    }
    else if (_eglIsSurfaceBound(&xsurf->Base)) {
-      xctx = lookup_context(_eglGetContextHandle(xsurf->Base.Binding));
+      xctx = lookup_context(xsurf->Base.Binding);
       if (xctx)
          st_finish(xctx->Context);
    }
@@ -700,7 +665,7 @@ xlib_eglBindTexImage(_EGLDriver *drv, EGLDisplay dpy,
 
 
 static EGLBoolean
-xlib_eglReleaseTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface,
+xlib_eglReleaseTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface,
                         EGLint buffer)
 {
    struct xlib_egl_surface *xsurf = lookup_surface(surface);
@@ -722,7 +687,7 @@ xlib_eglReleaseTexImage(_EGLDriver *drv, EGLDisplay dpy, EGLSurface surface,
 
 
 static EGLBoolean
-xlib_eglSwapBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw)
+xlib_eglSwapBuffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw)
 {
    /* error checking step: */
    if (!_eglSwapBuffers(drv, dpy, draw))
@@ -831,4 +796,3 @@ _eglMain(_EGLDisplay *dpy, const char *args)
 
    return &xdrv->Base;
 }
-