1 files changed, 64 insertions, 0 deletions
diff --git a/EGL/yagl_onscreen_buffer.c b/EGL/yagl_onscreen_buffer.c
new file mode 100644
index 0000000..381a106
--- /dev/null
+++ b/EGL/yagl_onscreen_buffer.c
@@ -0,0 +1,64 @@
+#include "yagl_onscreen_buffer.h"
+#include "yagl_onscreen_display.h"
+#include "yagl_native_display.h"
+#include "yagl_native_drawable.h"
+#include "yagl_log.h"
+#include "yagl_malloc.h"
+#include "vigs.h"
+#include <string.h>
+
+struct yagl_onscreen_buffer
+    *yagl_onscreen_buffer_create(struct yagl_onscreen_display *dpy,
+                                 struct yagl_native_drawable *native_drawable,
+                                 yagl_native_attachment attachment,
+                                 uint32_t check_name)
+{
+    int ret;
+    uint32_t name;
+    struct vigs_drm_surface *drm_sfc;
+    struct yagl_onscreen_buffer *buffer;
+
+    YAGL_LOG_FUNC_ENTER(yagl_onscreen_buffer_create,
+                        "dpy = %p, d = %p, attachment = %u, check_name = %u",
+                        native_drawable->dpy->os_dpy,
+                        native_drawable->os_drawable,
+                        attachment,
+                        check_name);
+
+    name = native_drawable->get_buffer(native_drawable, attachment);
+
+    if (!name) {
+        YAGL_LOG_FUNC_EXIT(NULL);
+        return NULL;
+    }
+
+    if (name == check_name) {
+        YAGL_LOG_FUNC_EXIT(NULL);
+        return NULL;
+    }
+
+    ret = vigs_drm_surface_open(dpy->drm_dev, name, &drm_sfc);
+
+    if (ret != 0) {
+        YAGL_LOG_ERROR("vigs_drm_surface_open failed for drawable %p: %s",
+                       native_drawable->os_drawable,
+                       strerror(-ret));
+        YAGL_LOG_FUNC_EXIT(NULL);
+        return NULL;
+    }
+
+    buffer = yagl_malloc0(sizeof(*buffer));
+
+    buffer->name = name;
+    buffer->drm_sfc = drm_sfc;
+
+    YAGL_LOG_FUNC_EXIT(NULL);
+
+    return buffer;
+}
+
+void yagl_onscreen_buffer_destroy(struct yagl_onscreen_buffer *buffer)
+{
+    vigs_drm_gem_unref(&buffer->drm_sfc->gem);
+    yagl_free(buffer);
+}