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#ifndef COMMON_H
#define COMMON_H
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <epoxy/egl.h>
#include <gbm.h>
/**
* https://dri.freedesktop.org/docs/drm/gpu/drm-uapi.html
*/
struct render_node {
int fd;
drmModeRes *res;
drmModeConnector *conn;
};
/**
* ..
*/
struct drm_fb {
struct drm_fb *next;
uint32_t width, height; /** w,h of our buffer object */
uint32_t stride; /** stride value of our buffer object */
uint32_t size; /** size o fthe memory mapped buffer */
uint32_t handle; /** a DRM handle to the buffer object that we can draw into */
/* Used by gbm fbs */
struct gbm_bo *bo;
struct gbm_device *gbm_dev;
struct gbm_surface *gbm_surface;
/* Used by dumb fbs */
uint32_t *map; /** pointer to the memory mapped buffer */
drmModeModeInfo mode; /** display mode that we want to use */
uint32_t fb; /** framebuffer handle with our buffer object as scanout buffer */
uint32_t conn; /** the connector ID that we want to use with this buffer */
uint32_t crtc; /** the crtc ID that we want to use with this connector */
drmModeCrtc *saved_crtc; /** the conf of the crtc before we changed it as to restore on exit */
};
struct egl {
EGLDisplay display;
EGLConfig config;
EGLContext context;
EGLSurface surface;
};
/**
* struct drm_output {}
* drmModeCrtc *saved_crtc;
* drmModeConnector *connector;
* struct gbm_surface *gbm_surface;
* struct drm_fb *current, *next;
*/
struct display {
struct render_node rnode;
struct drm_fb * dev;
struct egl egl;
};
#endif /* COMMON_H */
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