EGL_i915: Make struct drm_device per display.

This is to allow a driver to drive multiple displays.

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

4 files changed, 55 insertions, 43 deletions

diff --git a/src/gallium/state_trackers/egl/egl_context.c b/src/gallium/state_trackers/egl/egl_context.c
index 52b6453d29..c4f7361ca0 100644
--- a/src/gallium/state_trackers/egl/egl_context.c
+++ b/src/gallium/state_trackers/egl/egl_context.c
@@ -86,7 +86,7 @@ const struct dri_extension card_extensions[] = {
 _EGLContext *
 drm_create_context(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, _EGLContext *share_list, const EGLint *attrib_list)
 {
-	struct drm_device *dev = (struct drm_device *)drv;
+	struct drm_device *dev = lookup_drm_device(dpy);
 	struct drm_context *ctx;
 	struct drm_context *share = NULL;
 	struct st_context *st_share = NULL;
diff --git a/src/gallium/state_trackers/egl/egl_surface.c b/src/gallium/state_trackers/egl/egl_surface.c
index 0cca68dc36..3ef1945b93 100644
--- a/src/gallium/state_trackers/egl/egl_surface.c
+++ b/src/gallium/state_trackers/egl/egl_surface.c
@@ -67,11 +67,11 @@ drm_create_framebuffer(const __GLcontextModes *visual,
 }
 
 static void
-drm_create_texture(_EGLDriver *drv,
+drm_create_texture(_EGLDisplay *dpy,
                    struct drm_screen *scrn,
                    unsigned w, unsigned h)
 {
-	struct drm_device *dev = (struct drm_device *)drv;
+	struct drm_device *dev = lookup_drm_device(dpy);
 	struct pipe_screen *screen = dev->screen;
 	struct pipe_surface *surface;
 	struct pipe_texture *texture;
@@ -137,9 +137,9 @@ err_tex:
  */
 
 void
-drm_takedown_shown_screen(_EGLDriver *drv, struct drm_screen *screen)
+drm_takedown_shown_screen(_EGLDisplay *dpy, struct drm_screen *screen)
 {
-	struct drm_device *dev = (struct drm_device *)drv;
+	struct drm_device *dev = lookup_drm_device(dpy);
 
 	screen->surf = NULL;
 
@@ -244,17 +244,17 @@ drm_show_screen_surface_mesa(_EGLDriver *drv, _EGLDisplay *dpy,
                              _EGLScreen *screen,
                              _EGLSurface *surface, _EGLMode *mode)
 {
-	struct drm_device *dev = (struct drm_device *)drv;
+	struct drm_device *dev = lookup_drm_device(dpy);
 	struct drm_surface *surf = lookup_drm_surface(surface);
 	struct drm_screen *scrn = lookup_drm_screen(screen);
 	int ret;
 	unsigned int i, k;
 
 	if (scrn->shown)
-		drm_takedown_shown_screen(drv, scrn);
+		drm_takedown_shown_screen(dpy, scrn);
 
 
-	drm_create_texture(drv, scrn, mode->Width, mode->Height);
+	drm_create_texture(dpy, scrn, mode->Width, mode->Height);
 	if (!scrn->buffer)
 		return EGL_FALSE;
 
@@ -341,7 +341,7 @@ drm_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface)
 	struct drm_surface *surf = lookup_drm_surface(surface);
 	if (!_eglIsSurfaceBound(&surf->base)) {
 		if (surf->screen)
-			drm_takedown_shown_screen(drv, surf->screen);
+			drm_takedown_shown_screen(dpy, surf->screen);
 		st_unreference_framebuffer(surf->stfb);
 		free(surf);
 	}
@@ -351,7 +351,7 @@ drm_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surface)
 EGLBoolean
 drm_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *draw)
 {
-	struct drm_device *dev = (struct drm_device *)drv;
+	struct drm_device *dev = lookup_drm_device(dpy);
 	struct drm_surface *surf = lookup_drm_surface(draw);
 	struct pipe_surface *back_surf;
 
diff --git a/src/gallium/state_trackers/egl/egl_tracker.c b/src/gallium/state_trackers/egl/egl_tracker.c
index 57c81da767..5140755001 100644
--- a/src/gallium/state_trackers/egl/egl_tracker.c
+++ b/src/gallium/state_trackers/egl/egl_tracker.c
@@ -26,9 +26,7 @@ extern const struct dri_extension card_extensions[];
 static void
 drm_unload(_EGLDriver *drv)
 {
-	struct drm_device *dev = (struct drm_device *)drv;
-	dev->api->destroy(dev->api);
-	free(dev);
+	free(drv);
 }
 
 /**
@@ -38,35 +36,33 @@ drm_unload(_EGLDriver *drv)
 _EGLDriver *
 _eglMain(const char *args)
 {
-	struct drm_device *drm;
+	_EGLDriver *drv;
 
-	drm = (struct drm_device *) calloc(1, sizeof(struct drm_device));
-	if (!drm) {
+	drv = (_EGLDriver *) calloc(1, sizeof(_EGLDriver));
+	if (!drv) {
 		return NULL;
 	}
 
-	drm->api = drm_api_create();
-
 	/* First fill in the dispatch table with defaults */
-	_eglInitDriverFallbacks(&drm->base);
+	_eglInitDriverFallbacks(drv);
 	/* then plug in our Drm-specific functions */
-	drm->base.API.Initialize = drm_initialize;
-	drm->base.API.Terminate = drm_terminate;
-	drm->base.API.CreateContext = drm_create_context;
-	drm->base.API.MakeCurrent = drm_make_current;
-	drm->base.API.CreateWindowSurface = drm_create_window_surface;
-	drm->base.API.CreatePixmapSurface = drm_create_pixmap_surface;
-	drm->base.API.CreatePbufferSurface = drm_create_pbuffer_surface;
-	drm->base.API.DestroySurface = drm_destroy_surface;
-	drm->base.API.DestroyContext = drm_destroy_context;
-	drm->base.API.CreateScreenSurfaceMESA = drm_create_screen_surface_mesa;
-	drm->base.API.ShowScreenSurfaceMESA = drm_show_screen_surface_mesa;
-	drm->base.API.SwapBuffers = drm_swap_buffers;
-
-	drm->base.Name = "DRM/Gallium/Win";
-	drm->base.Unload = drm_unload;
-
-	return &drm->base;
+	drv->API.Initialize = drm_initialize;
+	drv->API.Terminate = drm_terminate;
+	drv->API.CreateContext = drm_create_context;
+	drv->API.MakeCurrent = drm_make_current;
+	drv->API.CreateWindowSurface = drm_create_window_surface;
+	drv->API.CreatePixmapSurface = drm_create_pixmap_surface;
+	drv->API.CreatePbufferSurface = drm_create_pbuffer_surface;
+	drv->API.DestroySurface = drm_destroy_surface;
+	drv->API.DestroyContext = drm_destroy_context;
+	drv->API.CreateScreenSurfaceMESA = drm_create_screen_surface_mesa;
+	drv->API.ShowScreenSurfaceMESA = drm_show_screen_surface_mesa;
+	drv->API.SwapBuffers = drm_swap_buffers;
+
+	drv->Name = "DRM/Gallium/Win";
+	drv->Unload = drm_unload;
+
+	return drv;
 }
 
 static void
@@ -145,7 +141,7 @@ static int drm_open_minor(int minor)
 EGLBoolean
 drm_initialize(_EGLDriver *drv, _EGLDisplay *disp, EGLint *major, EGLint *minor)
 {
-	struct drm_device *dev = (struct drm_device *)drv;
+	struct drm_device *dev;
 	struct drm_screen *screen = NULL;
 	drmModeConnectorPtr connector = NULL;
 	drmModeResPtr res = NULL;
@@ -154,6 +150,11 @@ drm_initialize(_EGLDriver *drv, _EGLDisplay *disp, EGLint *major, EGLint *minor)
 	EGLint i;
 	int fd;
 
+	dev = (struct drm_device *) calloc(1, sizeof(struct drm_device));
+	if (!dev)
+		return EGL_FALSE;
+	dev->api = drm_api_create();
+
 	/* try the first node */
 	fd = drm_open_minor(0);
 	if (fd < 0)
@@ -200,6 +201,8 @@ drm_initialize(_EGLDriver *drv, _EGLDisplay *disp, EGLint *major, EGLint *minor)
 	}
 	dev->count_screens = num_screens;
 
+	disp->DriverData = dev;
+
 	/* for now we only have one config */
 	_EGLConfig *config = calloc(1, sizeof(*config));
 	memset(config, 1, sizeof(*config));
@@ -227,17 +230,19 @@ drm_initialize(_EGLDriver *drv, _EGLDisplay *disp, EGLint *major, EGLint *minor)
 err_screen:
 	drmClose(fd);
 err_fd:
+	free(dev);
 	return EGL_FALSE;
 }
 
 EGLBoolean
 drm_terminate(_EGLDriver *drv, _EGLDisplay *dpy)
 {
-	struct drm_device *dev = (struct drm_device *)drv;
+	struct drm_device *dev = lookup_drm_device(dpy);
 	struct drm_screen *screen;
 	int i = 0;
 
 	_eglReleaseDisplayResources(drv, dpy);
+	_eglCleanupDisplay(dpy);
 
 	drmFreeVersion(dev->version);
 
@@ -245,7 +250,7 @@ drm_terminate(_EGLDriver *drv, _EGLDisplay *dpy)
 		screen = dev->screens[i];
 
 		if (screen->shown)
-			drm_takedown_shown_screen(drv, screen);
+			drm_takedown_shown_screen(dpy, screen);
 
 		drmModeFreeProperty(screen->dpms);
 		drmModeFreeConnector(screen->connector);
@@ -258,7 +263,9 @@ drm_terminate(_EGLDriver *drv, _EGLDisplay *dpy)
 
 	drmClose(dev->drmFD);
 
-	_eglCleanupDisplay(dpy);
+	dev->api->destroy(dev->api);
+	free(dev);
+	dpy->DriverData = NULL;
 
 	return EGL_TRUE;
 }
diff --git a/src/gallium/state_trackers/egl/egl_tracker.h b/src/gallium/state_trackers/egl/egl_tracker.h
index 25f70d885e..dd4730f957 100644
--- a/src/gallium/state_trackers/egl/egl_tracker.h
+++ b/src/gallium/state_trackers/egl/egl_tracker.h
@@ -32,8 +32,6 @@ struct drm_context;
 
 struct drm_device
 {
-	_EGLDriver base; /* base class/object */
-
 	/*
 	 * pipe
 	 */
@@ -136,6 +134,13 @@ struct drm_screen
 };
 
 
+static INLINE struct drm_device *
+lookup_drm_device(_EGLDisplay *d)
+{
+	return (struct drm_device *) d->DriverData;
+}
+
+
 static INLINE struct drm_context *
 lookup_drm_context(_EGLContext *c)
 {
@@ -168,7 +173,7 @@ __GLcontextModes* drm_visual_from_config(_EGLConfig *conf);
  * egl_surface.h
  */
 /*@{*/
-void drm_takedown_shown_screen(_EGLDriver *drv, struct drm_screen *screen);
+void drm_takedown_shown_screen(_EGLDisplay *dpy, struct drm_screen *screen);
 /*@}*/
 
 /**