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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_CONTIGUOUS_ATTRIBS \
(_EGL_CONFIG_LAST_ATTRIB - _EGL_CONFIG_FIRST_ATTRIB + 1)
/* Attributes outside the contiguous block:
*
* EGL_Y_INVERTED_NOK
*/
#define _EGL_CONFIG_FIRST_EXTRA_ATTRIB _EGL_CONFIG_NUM_CONTIGUOUS_ATTRIBS
#define _EGL_CONFIG_NUM_EXTRA_ATTRIBS 1
#define _EGL_CONFIG_NUM_ATTRIBS \
_EGL_CONFIG_NUM_CONTIGUOUS_ATTRIBS + _EGL_CONFIG_NUM_EXTRA_ATTRIBS
struct _egl_config
{
_EGLDisplay *Display;
EGLint Storage[_EGL_CONFIG_NUM_ATTRIBS];
};
/**
* Macros for source level compatibility.
*/
#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_CONTIGUOUS_ATTRIBS)
return key - _EGL_CONFIG_FIRST_ATTRIB;
switch (key) {
case EGL_Y_INVERTED_NOK:
return _EGL_CONFIG_FIRST_EXTRA_ATTRIB;
default:
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.
*
* Note that a valid key is not necessarily a valid attribute. There are gaps
* in the attribute enums. The separation is to catch application errors.
* Drivers should never set a key that is an invalid attribute.
*/
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];
}
PUBLIC void
_eglInitConfig(_EGLConfig *config, _EGLDisplay *dpy, EGLint id);
PUBLIC EGLConfig
_eglAddConfig(_EGLDisplay *dpy, _EGLConfig *conf);
extern EGLBoolean
_eglCheckConfigHandle(EGLConfig config, _EGLDisplay *dpy);
/**
* Lookup a handle to find the linked config.
* Return NULL if the handle has no corresponding linked config.
*/
static INLINE _EGLConfig *
_eglLookupConfig(EGLConfig config, _EGLDisplay *dpy)
{
_EGLConfig *conf = (_EGLConfig *) config;
if (!dpy || !_eglCheckConfigHandle(config, dpy))
conf = NULL;
return conf;
}
/**
* Return the handle of a linked config, or NULL.
*/
static INLINE EGLConfig
_eglGetConfigHandle(_EGLConfig *conf)
{
return (EGLConfig) ((conf && conf->Display) ? conf : NULL);
}
PUBLIC EGLBoolean
_eglValidateConfig(const _EGLConfig *conf, EGLBoolean for_matching);
PUBLIC EGLBoolean
_eglMatchConfig(const _EGLConfig *conf, const _EGLConfig *criteria);
PUBLIC EGLBoolean
_eglParseConfigAttribList(_EGLConfig *conf, const EGLint *attrib_list);
PUBLIC EGLint
_eglCompareConfigs(const _EGLConfig *conf1, const _EGLConfig *conf2,
const _EGLConfig *criteria, EGLBoolean compare_id);
PUBLIC void
_eglSortConfigs(const _EGLConfig **configs, EGLint count,
EGLint (*compare)(const _EGLConfig *, const _EGLConfig *,
void *),
void *priv_data);
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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