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#ifndef EGLCONFIG_INCLUDED
#define EGLCONFIG_INCLUDED
#include <assert.h>
#include "egltypedefs.h"
#define _EGL_CONFIG_FIRST_ATTRIB EGL_BUFFER_SIZE
#define _EGL_CONFIG_LAST_ATTRIB EGL_CONFORMANT
#define _EGL_CONFIG_NUM_ATTRIBS \
(_EGL_CONFIG_LAST_ATTRIB - _EGL_CONFIG_FIRST_ATTRIB + 1)
#define _EGL_CONFIG_STORAGE_SIZE _EGL_CONFIG_NUM_ATTRIBS
struct _egl_config
{
EGLConfig Handle; /* the public/opaque handle which names this config */
EGLint Storage[_EGL_CONFIG_STORAGE_SIZE];
};
#define SET_CONFIG_ATTRIB(CONF, ATTR, VAL) _eglSetConfigKey(CONF, ATTR, VAL)
#define GET_CONFIG_ATTRIB(CONF, ATTR) _eglGetConfigKey(CONF, ATTR)
/**
* Given a key, return an index into the storage of the config.
* Return -1 if the key is invalid.
*/
static INLINE EGLint
_eglIndexConfig(const _EGLConfig *conf, EGLint key)
{
(void) conf;
if (key >= _EGL_CONFIG_FIRST_ATTRIB &&
key < _EGL_CONFIG_FIRST_ATTRIB + _EGL_CONFIG_NUM_ATTRIBS)
return key - _EGL_CONFIG_FIRST_ATTRIB;
else
return -1;
}
/**
* Reset all keys in the config to a given value.
*/
static INLINE void
_eglResetConfigKeys(_EGLConfig *conf, EGLint val)
{
EGLint i;
for (i = 0; i < _EGL_CONFIG_NUM_ATTRIBS; i++)
conf->Storage[i] = val;
}
/**
* Update a config for a given key.
*/
static INLINE void
_eglSetConfigKey(_EGLConfig *conf, EGLint key, EGLint val)
{
EGLint idx = _eglIndexConfig(conf, key);
assert(idx >= 0);
conf->Storage[idx] = val;
}
/**
* Return the value for a given key.
*/
static INLINE EGLint
_eglGetConfigKey(const _EGLConfig *conf, EGLint key)
{
EGLint idx = _eglIndexConfig(conf, key);
assert(idx >= 0);
return conf->Storage[idx];
}
/**
* Set a given attribute.
*
* Because _eglGetConfigAttrib is already used as a fallback driver
* function, this function is not considered to have a good name.
* SET_CONFIG_ATTRIB is preferred over this function.
*/
static INLINE void
_eglSetConfigAttrib(_EGLConfig *conf, EGLint attr, EGLint val)
{
SET_CONFIG_ATTRIB(conf, attr, val);
}
extern void
_eglInitConfig(_EGLConfig *config, EGLint id);
extern EGLConfig
_eglGetConfigHandle(_EGLConfig *config);
extern _EGLConfig *
_eglLookupConfig(EGLConfig config, _EGLDisplay *dpy);
extern _EGLConfig *
_eglAddConfig(_EGLDisplay *display, _EGLConfig *config);
extern EGLBoolean
_eglParseConfigAttribs(_EGLConfig *config, const EGLint *attrib_list);
extern EGLBoolean
_eglChooseConfig(_EGLDriver *drv, _EGLDisplay *dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config);
extern EGLBoolean
_eglGetConfigAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLConfig *conf, EGLint attribute, EGLint *value);
extern EGLBoolean
_eglGetConfigs(_EGLDriver *drv, _EGLDisplay *dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config);
#endif /* EGLCONFIG_INCLUDED */
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