render: drop egl parameters from wlr_renderer_autocreate

backend/drm/renderer.c

@@ -29,8 +29,7 @@ bool init_drm_renderer(struct wlr_drm_backend *drm,
 		return false;
 	}
 
-	renderer->wlr_rend = wlr_renderer_autocreate(EGL_PLATFORM_GBM_KHR,
-			renderer->gbm);
+	renderer->wlr_rend = wlr_renderer_autocreate(&drm->backend);
 	if (!renderer->wlr_rend) {
 		wlr_log(WLR_ERROR, "Failed to create EGL/WLR renderer");
 		goto error_gbm;

backend/headless/backend.c

@@ -219,8 +219,7 @@ struct wlr_backend *wlr_headless_backend_create(struct wl_display *display) {
 		goto error_dup;
 	}
 
-	struct wlr_renderer *renderer = wlr_renderer_autocreate(
-		EGL_PLATFORM_GBM_KHR, gbm_alloc->gbm_device);
+	struct wlr_renderer *renderer = wlr_renderer_autocreate(&backend->backend);
 	if (!renderer) {
 		wlr_log(WLR_ERROR, "Failed to create renderer");
 		goto error_renderer;

backend/wayland/backend.c

@@ -437,8 +437,7 @@ struct wlr_backend *wlr_wl_backend_create(struct wl_display *display,
 	}
 	wl->allocator = &gbm_alloc->base;
 
-	wl->renderer = wlr_renderer_autocreate(EGL_PLATFORM_GBM_KHR,
-		gbm_alloc->gbm_device);
+	wl->renderer = wlr_renderer_autocreate(&wl->backend);
 	if (wl->renderer == NULL) {
 		wlr_log(WLR_ERROR, "Failed to create renderer");
 		goto error_allocator;

backend/x11/backend.c

@@ -547,8 +547,7 @@ struct wlr_backend *wlr_x11_backend_create(struct wl_display *display,
 	}
 	x11->allocator = &gbm_alloc->base;
 
-	x11->renderer = wlr_renderer_autocreate(EGL_PLATFORM_GBM_KHR,
-		gbm_alloc->gbm_device);
+	x11->renderer = wlr_renderer_autocreate(&x11->backend);
 	if (x11->renderer == NULL) {
 		wlr_log(WLR_ERROR, "Failed to create renderer");
 		goto error_event;

include/wlr/render/egl.h

@@ -41,6 +41,7 @@ struct wlr_egl {
 	EGLConfig config; // may be EGL_NO_CONFIG
 	EGLContext context;
 	EGLDeviceEXT device; // may be EGL_NO_DEVICE_EXT
+	struct gbm_device *gbm_device;
 
 	struct {
 		// Display extensions

include/wlr/render/wlr_renderer.h

@@ -11,6 +11,7 @@
 
 #include <stdint.h>
 #include <wayland-server-protocol.h>
+#include <wlr/backend.h>
 #include <wlr/render/egl.h>
 #include <wlr/render/wlr_texture.h>
 #include <wlr/types/wlr_box.h>
@@ -33,8 +34,7 @@ struct wlr_renderer {
 	} events;
 };
 
-struct wlr_renderer *wlr_renderer_autocreate(EGLenum platform,
-	void *remote_display);
+struct wlr_renderer *wlr_renderer_autocreate(struct wlr_backend *backend);
 
 void wlr_renderer_begin(struct wlr_renderer *r, uint32_t width, uint32_t height);
 void wlr_renderer_end(struct wlr_renderer *r);

render/egl.c

@@ -5,6 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <gbm.h>
 #include <wlr/render/egl.h>
 #include <wlr/util/log.h>
 #include <wlr/util/region.h>
@@ -362,6 +363,10 @@ void wlr_egl_destroy(struct wlr_egl *egl) {
 		return;
 	}
 
+	if (egl->gbm_device) {
+		gbm_device_destroy(egl->gbm_device);
+	}
+
 	wlr_drm_format_set_finish(&egl->dmabuf_render_formats);
 	wlr_drm_format_set_finish(&egl->dmabuf_texture_formats);
 

render/wlr_renderer.c

@@ -1,6 +1,8 @@
 #include <assert.h>
 #include <stdbool.h>
 #include <stdlib.h>
+#include <gbm.h>
+#include <wlr/render/egl.h>
 #include <wlr/render/gles2.h>
 #include <wlr/render/interface.h>
 #include <wlr/render/wlr_renderer.h>
@@ -8,6 +10,7 @@
 #include <wlr/util/log.h>
 #include "util/signal.h"
 #include "render/wlr_renderer.h"
+#include "backend/backend.h"
 
 void wlr_renderer_init(struct wlr_renderer *renderer,
 		const struct wlr_renderer_impl *impl) {
@@ -247,14 +250,29 @@ bool wlr_renderer_init_wl_display(struct wlr_renderer *r,
 	return true;
 }
 
-struct wlr_renderer *wlr_renderer_autocreate(EGLenum platform,
-		void *remote_display) {
-	struct wlr_egl *egl = wlr_egl_create(platform, remote_display, NULL);
+struct wlr_renderer *wlr_renderer_autocreate(struct wlr_backend *backend) {
+	int fd = backend_get_drm_fd(backend);
+	if (fd < 0) {
+		wlr_log(WLR_ERROR, "Failed to get DRM FD from backend");
+		return NULL;
+	}
+
+	struct gbm_device *gbm_device = gbm_create_device(fd);
+	if (!gbm_device) {
+		wlr_log(WLR_ERROR, "Failed to create GBM device");
+		return NULL;
+	}
+
+	struct wlr_egl *egl = wlr_egl_create(EGL_PLATFORM_GBM_KHR, gbm_device,
+			NULL);
 	if (egl == NULL) {
 		wlr_log(WLR_ERROR, "Could not initialize EGL");
+		gbm_device_destroy(gbm_device);
 		return NULL;
 	}
 
+	egl->gbm_device = gbm_device;
+
 	struct wlr_renderer *renderer = wlr_gles2_renderer_create(egl);
 	if (!renderer) {
 		wlr_log(WLR_ERROR, "Failed to create GLES2 renderer");