/**
* Called by eglCreateContext via drv->API.CreateContext().
*/
static EGLContext
_eglDRICreateContext(_EGLDriver *drv, EGLDisplay dpy, EGLConfig config,
EGLContext share_list, const EGLint *attrib_list)
{
driDisplay *disp = Lookup_driDisplay(dpy);
driContext *c, *share;
void *sharePriv;
_EGLConfig *conf;
__GLcontextModes visMode;
c = (driContext *) calloc(1, sizeof(*c));
if (!c)
return EGL_NO_CONTEXT;
if (!_eglInitContext(drv, dpy, &c->Base, config, attrib_list)) {
free(c);
return EGL_NO_CONTEXT;
}
if (share_list != EGL_NO_CONTEXT) {
_EGLContext *shareCtx = _eglLookupContext(share_list);
if (!shareCtx) {
_eglError(EGL_BAD_CONTEXT, "eglCreateContext(share_list)");
return EGL_FALSE;
}
}
share = Lookup_driContext(share_list);
if (share)
sharePriv = share->driContext.private;
else
EGLContext EGLAPIENTRY
eglCreateContext(EGLDisplay dpy, EGLConfig config, EGLContext share_list,
const EGLint *attrib_list)
{
_EGLDisplay *disp = _eglLockDisplay(dpy);
_EGLConfig *conf = _eglLookupConfig(config, disp);
_EGLContext *share = _eglLookupContext(share_list, disp);
_EGLDriver *drv;
_EGLContext *context;
EGLContext ret;
_EGL_CHECK_DISPLAY(disp, EGL_NO_CONTEXT, drv);
if (!config) {
/* config may be NULL if surfaceless */
if (!disp->Extensions.KHR_surfaceless_gles1 &&
!disp->Extensions.KHR_surfaceless_gles2 &&
!disp->Extensions.KHR_surfaceless_opengl)
RETURN_EGL_ERROR(disp, EGL_BAD_CONFIG, EGL_NO_CONTEXT);
}
if (!share && share_list != EGL_NO_CONTEXT)
RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_CONTEXT);
context = drv->API.CreateContext(drv, disp, conf, share, attrib_list);
ret = (context) ? _eglLinkContext(context) : EGL_NO_CONTEXT;
RETURN_EGL_EVAL(disp, ret);
}
EGLBoolean
_eglQueryContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx,
EGLint attribute, EGLint *value)
{
_EGLContext *c = _eglLookupContext(ctx);
(void) drv;
(void) dpy;
if (!c) {
_eglError(EGL_BAD_CONTEXT, "eglQueryContext");
return EGL_FALSE;
}
switch (attribute) {
case EGL_CONFIG_ID:
*value = GET_CONFIG_ATTRIB(c->Config, EGL_CONFIG_ID);
return EGL_TRUE;
#ifdef EGL_VERSION_1_2
case EGL_CONTEXT_CLIENT_TYPE:
*value = c->ClientAPI;
return EGL_FALSE;
#endif /* EGL_VERSION_1_2 */
default:
_eglError(EGL_BAD_ATTRIBUTE, "eglQueryContext");
return EGL_FALSE;
}
}
EGLBoolean EGLAPIENTRY
eglCopyContextMESA(EGLDisplay dpy, EGLContext source, EGLContext dest,
EGLint mask)
{
_EGLDisplay *disp = _eglLockDisplay(dpy);
_EGLContext *source_context = _eglLookupContext(source, disp);
_EGLContext *dest_context = _eglLookupContext(dest, disp);
_EGLDriver *drv;
EGLBoolean ret;
_EGL_CHECK_CONTEXT(disp, source_context, EGL_FALSE, drv);
if (!dest_context)
RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE);
ret = drv->API.CopyContextMESA(drv, disp,
source_context, dest_context, mask);
RETURN_EGL_EVAL(disp, ret);
}
EGLBoolean EGLAPIENTRY
eglQueryContext(EGLDisplay dpy, EGLContext ctx,
EGLint attribute, EGLint *value)
{
_EGLDisplay *disp = _eglLockDisplay(dpy);
_EGLContext *context = _eglLookupContext(ctx, disp);
_EGLDriver *drv;
EGLBoolean ret;
_EGL_CHECK_CONTEXT(disp, context, EGL_FALSE, drv);
ret = drv->API.QueryContext(drv, disp, context, attribute, value);
RETURN_EGL_EVAL(disp, ret);
}
EGLBoolean EGLAPIENTRY
eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
{
_EGLDisplay *disp = _eglLockDisplay(dpy);
_EGLContext *context = _eglLookupContext(ctx, disp);
_EGLDriver *drv;
EGLBoolean ret;
_EGL_CHECK_CONTEXT(disp, context, EGL_FALSE, drv);
_eglUnlinkContext(context);
ret = drv->API.DestroyContext(drv, disp, context);
RETURN_EGL_EVAL(disp, ret);
}
EGLBoolean EGLAPIENTRY
eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read,
EGLContext ctx)
{
_EGLDisplay *disp = _eglLockDisplay(dpy);
_EGLContext *context = _eglLookupContext(ctx, disp);
_EGLSurface *draw_surf = _eglLookupSurface(draw, disp);
_EGLSurface *read_surf = _eglLookupSurface(read, disp);
_EGLDriver *drv;
EGLBoolean ret;
if (!disp)
RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_FALSE);
drv = disp->Driver;
/* display is allowed to be uninitialized under certain condition */
if (!disp->Initialized) {
if (draw != EGL_NO_SURFACE || read != EGL_NO_SURFACE ||
ctx != EGL_NO_CONTEXT)
RETURN_EGL_ERROR(disp, EGL_BAD_DISPLAY, EGL_FALSE);
}
if (!drv)
RETURN_EGL_SUCCESS(disp, EGL_TRUE);
if (!context && ctx != EGL_NO_CONTEXT)
RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_FALSE);
if (!draw_surf || !read_surf) {
/* surfaces may be NULL if surfaceless */
if (!disp->Extensions.KHR_surfaceless_gles1 &&
!disp->Extensions.KHR_surfaceless_gles2 &&
!disp->Extensions.KHR_surfaceless_opengl)
RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
if ((!draw_surf && draw != EGL_NO_SURFACE) ||
(!read_surf && read != EGL_NO_SURFACE))
RETURN_EGL_ERROR(disp, EGL_BAD_SURFACE, EGL_FALSE);
if (draw_surf || read_surf)
RETURN_EGL_ERROR(disp, EGL_BAD_MATCH, EGL_FALSE);
}
ret = drv->API.MakeCurrent(drv, disp, draw_surf, read_surf, context);
RETURN_EGL_EVAL(disp, ret);
}
/**
* Default fallback routine - drivers should usually override this.
*/
EGLBoolean
_eglDestroyContext(_EGLDriver *drv, EGLDisplay dpy, EGLContext ctx)
{
_EGLContext *context = _eglLookupContext(ctx);
if (context) {
_eglHashRemove(_eglGlobal.Contexts, ctx);
if (context->IsBound) {
context->DeletePending = EGL_TRUE;
}
else {
free(context);
}
return EGL_TRUE;
}
else {
_eglError(EGL_BAD_CONTEXT, "eglDestroyContext");
return EGL_TRUE;
}
}
EGLImageKHR EGLAPIENTRY
eglCreateImageKHR(EGLDisplay dpy, EGLContext ctx, EGLenum target,
EGLClientBuffer buffer, const EGLint *attr_list)
{
_EGLDisplay *disp = _eglLockDisplay(dpy);
_EGLContext *context = _eglLookupContext(ctx, disp);
_EGLDriver *drv;
_EGLImage *img;
EGLImageKHR ret;
_EGL_CHECK_DISPLAY(disp, EGL_NO_IMAGE_KHR, drv);
if (!disp->Extensions.KHR_image_base)
RETURN_EGL_EVAL(disp, EGL_NO_IMAGE_KHR);
if (!context && ctx != EGL_NO_CONTEXT)
RETURN_EGL_ERROR(disp, EGL_BAD_CONTEXT, EGL_NO_IMAGE_KHR);
img = drv->API.CreateImageKHR(drv,
disp, context, target, buffer, attr_list);
ret = (img) ? _eglLinkImage(img) : EGL_NO_IMAGE_KHR;
RETURN_EGL_EVAL(disp, ret);
}
static fbContext *
Lookup_fbContext(EGLContext ctx)
{
_EGLContext *c = _eglLookupContext(ctx);
return (fbContext *) c;
}
static struct xlib_egl_context *
lookup_context(EGLContext surf)
{
_EGLContext *context = _eglLookupContext(surf);
return (struct xlib_egl_context *) context;
}
/**
* Drivers will typically call this to do the error checking and
* update the various IsBound and DeletePending flags.
* Then, the driver will do its device-dependent Make-Current stuff.
*/
EGLBoolean
_eglMakeCurrent(_EGLDriver *drv, EGLDisplay dpy, EGLSurface d,
EGLSurface r, EGLContext context)
{
_EGLThreadInfo *t = _eglGetCurrentThread();
_EGLContext *ctx = _eglLookupContext(context);
_EGLSurface *draw = _eglLookupSurface(d);
_EGLSurface *read = _eglLookupSurface(r);
_EGLContext *oldContext = _eglGetCurrentContext();
_EGLSurface *oldDrawSurface = _eglGetCurrentSurface(EGL_DRAW);
_EGLSurface *oldReadSurface = _eglGetCurrentSurface(EGL_READ);
/* error checking */
if (ctx) {
if (draw == NULL || read == NULL) {
_eglError(EGL_BAD_MATCH, "eglMakeCurrent");
return EGL_FALSE;
}
if (draw->Config != ctx->Config) {
_eglError(EGL_BAD_MATCH, "eglMakeCurrent");
return EGL_FALSE;
}
if (read->Config != ctx->Config) {
_eglError(EGL_BAD_MATCH, "eglMakeCurrent");
return EGL_FALSE;
}
}
/*
* check if the old context or surfaces need to be deleted
*/
if (oldDrawSurface != NULL) {
oldDrawSurface->IsBound = EGL_FALSE;
if (oldDrawSurface->DeletePending) {
/* make sure we don't try to rebind a deleted surface */
if (draw == oldDrawSurface || draw == oldReadSurface) {
draw = NULL;
}
/* really delete surface now */
drv->API.DestroySurface(drv, dpy, oldDrawSurface->Handle);
}
}
if (oldReadSurface != NULL && oldReadSurface != oldDrawSurface) {
oldReadSurface->IsBound = EGL_FALSE;
if (oldReadSurface->DeletePending) {
/* make sure we don't try to rebind a deleted surface */
if (read == oldDrawSurface || read == oldReadSurface) {
read = NULL;
}
/* really delete surface now */
drv->API.DestroySurface(drv, dpy, oldReadSurface->Handle);
}
}
if (oldContext != NULL) {
oldContext->IsBound = EGL_FALSE;
if (oldContext->DeletePending) {
/* make sure we don't try to rebind a deleted context */
if (ctx == oldContext) {
ctx = NULL;
}
/* really delete context now */
drv->API.DestroyContext(drv, dpy, oldContext->Handle);
}
}
if (ctx) {
/* check read/draw again, in case we deleted them above */
if (draw == NULL || read == NULL) {
_eglError(EGL_BAD_MATCH, "eglMakeCurrent");
return EGL_FALSE;
}
ctx->DrawSurface = draw;
ctx->ReadSurface = read;
ctx->IsBound = EGL_TRUE;
draw->IsBound = EGL_TRUE;
read->IsBound = EGL_TRUE;
}
t->CurrentContext = ctx;
return EGL_TRUE;
}
