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/* Public domain. */
#include <drm/drm_gem.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_modeset_helper.h>
void
drm_gem_fb_destroy(struct drm_framebuffer *fb)
{
int i;
for (i = 0; i < 4; i++)
drm_gem_object_put(fb->obj[i]);
drm_framebuffer_cleanup(fb);
free(fb, M_DRM, 0);
}
int
drm_gem_fb_create_handle(struct drm_framebuffer *fb, struct drm_file *file,
unsigned int *handle)
{
return drm_gem_handle_create(file, fb->obj[0], handle);
}
const struct drm_framebuffer_funcs drm_gem_fb_funcs = {
.create_handle = drm_gem_fb_create_handle,
.destroy = drm_gem_fb_destroy,
};
struct drm_framebuffer *
drm_gem_fb_create(struct drm_device *dev, struct drm_file *file,
const struct drm_mode_fb_cmd2 *cmd)
{
struct drm_framebuffer *fb;
const struct drm_format_info *info;
struct drm_gem_object *gem_obj;
int error;
info = drm_get_format_info(dev, cmd);
if (!info)
return ERR_PTR(-EINVAL);
KASSERT(info->num_planes == 1);
gem_obj = drm_gem_object_lookup(file, cmd->handles[0]);
if (gem_obj == NULL)
return ERR_PTR(-ENOENT);
fb = malloc(sizeof(*fb), M_DRM, M_ZERO | M_WAITOK);
drm_helper_mode_fill_fb_struct(dev, fb, cmd);
fb->obj[0] = gem_obj;
error = drm_framebuffer_init(dev, fb, &drm_gem_fb_funcs);
if (error != 0)
goto dealloc;
return fb;
dealloc:
drm_framebuffer_cleanup(fb);
free(fb, M_DRM, sizeof(*fb));
drm_gem_object_put(gem_obj);
return ERR_PTR(error);
}
struct drm_gem_object *
drm_gem_fb_get_obj(struct drm_framebuffer *fb, unsigned int plane)
{
if (plane < nitems(fb->obj))
return fb->obj[plane];
return NULL;
}
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